From 2e76c14e11c14392263a69c7064ff6adbdfca450 Mon Sep 17 00:00:00 2001
From: Damyon Wiese <damyon@moodle.com>
Date: Wed, 17 Feb 2016 16:16:13 +0800
Subject: [PATCH 1/9] MDL-52954 core: Add a document converter to file_storage

This lets us convert between common office formats. E.g. docx -> pdf
html -> pdf, html -> ods.

This commit also updates assignment editpdf plugin to use this converter
on all compatible submission files.
---
 admin/settings/server.php                     |   1 +
 config-dist.php                               |   6 +
 lang/en/admin.php                             |   2 +
 lib/behat/lib.php                             |   2 +-
 lib/filestorage/file_storage.php              | 142 ++++++++++++++++++
 lib/phpunit/bootstrap.php                     |   3 +-
 .../editpdf/classes/document_services.php     |  59 +++++++-
 7 files changed, 211 insertions(+), 4 deletions(-)

diff --git a/admin/settings/server.php b/admin/settings/server.php
index 573ed4b196f..07b7c7f895d 100644
--- a/admin/settings/server.php
+++ b/admin/settings/server.php
@@ -12,6 +12,7 @@ $temp->add(new admin_setting_configexecutable('pathtodu', new lang_string('patht
 $temp->add(new admin_setting_configexecutable('aspellpath', new lang_string('aspellpath', 'admin'), new lang_string('edhelpaspellpath'), ''));
 $temp->add(new admin_setting_configexecutable('pathtodot', new lang_string('pathtodot', 'admin'), new lang_string('pathtodot_help', 'admin'), ''));
 $temp->add(new admin_setting_configexecutable('pathtogs', new lang_string('pathtogs', 'admin'), new lang_string('pathtogs_help', 'admin'), '/usr/bin/gs'));
+$temp->add(new admin_setting_configexecutable('pathtopandoc', new lang_string('pathtopandoc', 'admin'), new lang_string('pathtopandoc_help', 'admin'), '/usr/bin/pandoc'));
 $ADMIN->add('server', $temp);
 
 
diff --git a/config-dist.php b/config-dist.php
index cdf3de959cf..894e1df24c5 100644
--- a/config-dist.php
+++ b/config-dist.php
@@ -837,6 +837,12 @@ $CFG->admin = 'admin';
 // Note that, for now, this only used by the profiling features
 // (Development->Profiling) built into Moodle.
 //      $CFG->pathtodot = '';
+//
+// Path to pandoc.
+// Probably something like /usr/bin/pandoc. Used to convert between document formats.
+// It is recommended to install the latest stable release of pandoc.
+// Download packages for all platforms are available from http://pandoc.org/
+//      $CFG->pathtopandoc = '';
 
 //=========================================================================
 // ALL DONE!  To continue installation, visit your main page with a browser
diff --git a/lang/en/admin.php b/lang/en/admin.php
index fb392c17989..5b64a22be08 100644
--- a/lang/en/admin.php
+++ b/lang/en/admin.php
@@ -779,6 +779,8 @@ $string['passwordpolicy'] = 'Password policy';
 $string['passwordresettime'] = 'Maximum time to validate password reset request';
 $string['passwordreuselimit'] = 'Password rotation limit';
 $string['passwordreuselimit_desc'] = 'Number of times a user must change their password before they are allowed to reuse a password. Hashes of previously used passwords are stored in local database table. This feature might not be compatible with some external authentication plugins.';
+$string['pathtopandoc'] = 'Path to pandoc document converter';
+$string['pathtopandoc_help'] = 'Path to pandoc document converter. This is an executable that is capable of converting between document formats. This is optional, but if specified, Moodle will be able to perform automated conversion of documents from a wide range of file formats. This is used by the Assignment module "Annotate PDF" feature.';
 $string['pathtodot'] = 'Path to dot';
 $string['pathtodot_help'] = 'Path to dot. Probably something like /usr/bin/dot. To be able to generate graphics from DOT files, you must have installed the dot executable and point to it here. Note that, for now, this only used by the profiling features (Development->Profiling) built into Moodle.';
 $string['pathtodu'] = 'Path to du';
diff --git a/lib/behat/lib.php b/lib/behat/lib.php
index 1ab06c2a957..91b46f3fdee 100644
--- a/lib/behat/lib.php
+++ b/lib/behat/lib.php
@@ -166,7 +166,7 @@ function behat_clean_init_config() {
         'umaskpermissions', 'dbtype', 'dblibrary', 'dbhost', 'dbname', 'dbuser', 'dbpass', 'prefix',
         'dboptions', 'proxyhost', 'proxyport', 'proxytype', 'proxyuser', 'proxypassword',
         'proxybypass', 'theme', 'pathtogs', 'pathtodu', 'aspellpath', 'pathtodot', 'skiplangupgrade',
-        'altcacheconfigpath'
+        'altcacheconfigpath', 'pathtopandoc'
     ));
 
     // Add extra allowed settings.
diff --git a/lib/filestorage/file_storage.php b/lib/filestorage/file_storage.php
index 92908142e6a..2503b4a1fbc 100644
--- a/lib/filestorage/file_storage.php
+++ b/lib/filestorage/file_storage.php
@@ -156,6 +156,128 @@ class file_storage {
         return $storedfile;
     }
 
+    /**
+     * Get converted document.
+     *
+     * Get an alternate version of the specified document, if it is possible to convert.
+     *
+     * @param stored_file $file the file we want to preview
+     * @param string $format The desired format - e.g. 'pdf'. Formats are specified by file extension.
+     * @return stored_file|bool false if unable to create the conversion, stored file otherwise
+     */
+    public function get_converted_document(stored_file $file, $format) {
+
+        $context = context_system::instance();
+        $path = '/' . $format . '/';
+        $conversion = $this->get_file($context->id, 'core', 'documentconversion', 0, $path, $file->get_contenthash());
+
+        if (!$conversion) {
+            $conversion = $this->create_converted_document($file, $format);
+            if (!$conversion) {
+                return false;
+            }
+        }
+
+        return $conversion;
+    }
+
+    /**
+     * Verify the format is supported.
+     *
+     * @param string $format The desired format - e.g. 'pdf'. Formats are specified by file extension.
+     * @return bool - True if the format is supported for input.
+     */
+    protected function is_input_format_supported_by_pandoc($format) {
+        $sanitized = trim(strtolower($format));
+        return in_array($sanitized, array('md', 'html', 'tex', 'docx', 'odt', 'epub', 'png', 'jpg', 'gif'));
+    }
+
+    /**
+     * Verify the format is supported.
+     *
+     * @param string $format The desired format - e.g. 'pdf'. Formats are specified by file extension.
+     * @return bool - True if the format is supported for output.
+     */
+    protected function is_output_format_supported_by_pandoc($format) {
+        $sanitized = trim(strtolower($format));
+        return in_array($sanitized, array('md', 'pdf', 'html', 'tex', 'docx', 'odt', 'odf', 'epub'));
+    }
+
+    /**
+     * Perform a file format conversion on the specified document.
+     *
+     * @param stored_file $file the file we want to preview
+     * @param string $format The desired format - e.g. 'pdf'. Formats are specified by file extension.
+     * @return stored_file|bool false if unable to create the conversion, stored file otherwise
+     */
+    protected function create_converted_document(stored_file $file, $format) {
+        global $CFG;
+
+        if (empty($CFG->pathtopandoc) || !is_executable(trim($CFG->pathtopandoc))) {
+            // No conversions are possible, sorry.
+            return false;
+        }
+
+        $fileextension = strtolower(pathinfo($file->get_filename(), PATHINFO_EXTENSION));
+        if (!self::is_input_format_supported_by_pandoc($fileextension)) {
+            return false;
+        }
+
+        if (!self::is_output_format_supported_by_pandoc($format)) {
+            return false;
+        }
+
+        // Copy the file to the local tmp dir.
+        $tmp = make_request_directory();
+        $localfilename = $file->get_filename();
+        // Safety.
+        $localfilename = clean_param($localfilename, PARAM_FILE);
+
+        $filename = $tmp . '/' . $localfilename;
+        $file->copy_content_to($filename);
+
+        if (in_array($fileextension, array('gif', 'jpg', 'png'))) {
+            // We wrap images in a tiny html file - pandoc will generate documents from them.
+            $htmlwrapperfile = $tmp . '/wrapper.html';
+
+            file_put_contents($htmlwrapperfile, "<html><body><img src=\"$localfilename\"></body></html>");
+
+            $filename = $htmlwrapperfile;
+        }
+
+        $newtmpfile = pathinfo($filename, PATHINFO_FILENAME) . '.' . $format;
+
+        // Safety.
+        $newtmpfile = $tmp . '/' . clean_param($newtmpfile, PARAM_FILE);
+
+        $cmd = escapeshellcmd(trim($CFG->pathtopandoc)) . ' ' .
+               escapeshellarg('-o') . ' ' .
+               escapeshellarg($newtmpfile) . ' ' .
+               escapeshellarg($filename);
+
+        $e = file_exists($filename);
+        $output = null;
+        $currentdir = getcwd();
+        chdir($tmp);
+        $result = exec($cmd, $output);
+        chdir($currentdir);
+        if (!file_exists($newtmpfile)) {
+            return false;
+        }
+
+        $context = context_system::instance();
+        $record = array(
+            'contextid' => $context->id,
+            'component' => 'core',
+            'filearea'  => 'documentconversion',
+            'itemid'    => 0,
+            'filepath'  => '/' . $format . '/',
+            'filename'  => $file->get_contenthash(),
+        );
+
+        return $this->create_file_from_pathname($record, $newtmpfile);
+    }
+
     /**
      * Returns an image file that represent the given stored file as a preview
      *
@@ -2282,6 +2404,26 @@ class file_storage {
         $rs->close();
         mtrace('done.');
 
+        // remove orphaned converted files (that is files in the core documentconversion filearea without
+        // the existing original file)
+        mtrace('Deleting orphaned document conversion files... ', '');
+        cron_trace_time_and_memory();
+        $sql = "SELECT p.*
+                  FROM {files} p
+             LEFT JOIN {files} o ON (p.filename = o.contenthash)
+                 WHERE p.contextid = ? AND p.component = 'core' AND p.filearea = 'documentconversion' AND p.itemid = 0
+                       AND o.id IS NULL";
+        $syscontext = context_system::instance();
+        $rs = $DB->get_recordset_sql($sql, array($syscontext->id));
+        foreach ($rs as $orphan) {
+            $file = $this->get_file_instance($orphan);
+            if (!$file->is_directory()) {
+                $file->delete();
+            }
+        }
+        $rs->close();
+        mtrace('done.');
+
         // remove trash pool files once a day
         // if you want to disable purging of trash put $CFG->fileslastcleanup=time(); into config.php
         if (empty($CFG->fileslastcleanup) or $CFG->fileslastcleanup < time() - 60*60*24) {
diff --git a/lib/phpunit/bootstrap.php b/lib/phpunit/bootstrap.php
index 16bad007321..39237783a42 100644
--- a/lib/phpunit/bootstrap.php
+++ b/lib/phpunit/bootstrap.php
@@ -185,7 +185,8 @@ $CFG->dboptions = isset($CFG->phpunit_dboptions) ? $CFG->phpunit_dboptions : $CF
 $allowed = array('wwwroot', 'dataroot', 'dirroot', 'admin', 'directorypermissions', 'filepermissions',
                  'dbtype', 'dblibrary', 'dbhost', 'dbname', 'dbuser', 'dbpass', 'prefix', 'dboptions',
                  'proxyhost', 'proxyport', 'proxytype', 'proxyuser', 'proxypassword', 'proxybypass', // keep proxy settings from config.php
-                 'altcacheconfigpath', 'pathtogs', 'pathtodu', 'aspellpath', 'pathtodot'
+                 'altcacheconfigpath', 'pathtogs', 'pathtodu', 'aspellpath', 'pathtodot',
+                 'pathtopandoc'
                 );
 $productioncfg = (array)$CFG;
 $CFG = new stdClass();
diff --git a/mod/assign/feedback/editpdf/classes/document_services.php b/mod/assign/feedback/editpdf/classes/document_services.php
index 48556c166fd..83684e3fad5 100644
--- a/mod/assign/feedback/editpdf/classes/document_services.php
+++ b/mod/assign/feedback/editpdf/classes/document_services.php
@@ -24,6 +24,8 @@
 
 namespace assignfeedback_editpdf;
 
+use DOMDocument;
+
 /**
  * Functions for generating the annotated pdf.
  *
@@ -40,6 +42,8 @@ class document_services {
     const FINAL_PDF_FILEAREA = 'download';
     /** File area for combined pdf */
     const COMBINED_PDF_FILEAREA = 'combined';
+    /** File area for importing html */
+    const IMPORT_HTML_FILEAREA = 'importhtml';
     /** File area for page images */
     const PAGE_IMAGE_FILEAREA = 'pages';
     /** File area for readonly page images */
@@ -84,6 +88,32 @@ class document_services {
         return sha1($assignmentid . '_' . $userid . '_' . $attemptnumber);
     }
 
+    /**
+     * Use a DOM parser to accurately replace images with their alt text.
+     * @param string $html
+     * @return string New html with no image tags.
+     */
+    protected static function strip_images($html) {
+        $dom = new DOMDocument();
+        $dom->loadHTML($html);
+        $images = $dom->getElementsByTagName('img');
+        $i = 0;
+
+        for ($i = ($images->length - 1); $i >= 0; $i--) {
+            $node = $images->item($i);
+
+            if ($node->hasAttribute('alt')) {
+                $replacement = ' [ ' . $node->getAttribute('alt') . ' ] ';
+            } else {
+                $replacement = ' ';
+            }
+
+            $text = $dom->createTextNode($replacement);
+            $node->parentNode->replaceChild($text, $node);
+        }
+        return $dom->saveHTML();
+    }
+
     /**
      * This function will search for all files that can be converted
      * and concatinated into a PDF (1.4) - for any submission plugin
@@ -116,13 +146,38 @@ class document_services {
         if (!$submission) {
             return $files;
         }
+
+        $fs = get_file_storage();
         // Ask each plugin for it's list of files.
         foreach ($assignment->get_submission_plugins() as $plugin) {
             if ($plugin->is_enabled() && $plugin->is_visible()) {
                 $pluginfiles = $plugin->get_files($submission, $user);
                 foreach ($pluginfiles as $filename => $file) {
-                    if (($file instanceof \stored_file) && ($file->get_mimetype() === 'application/pdf')) {
-                        $files[$filename] = $file;
+                    if ($file instanceof \stored_file) {
+                        if ($file->get_mimetype() === 'application/pdf') {
+                            $files[$filename] = $file;
+                        } else if ($convertedfile = $fs->get_converted_document($file, 'pdf')) {
+                            $files[$filename] = $convertedfile;
+                        }
+                    } else {
+                        // Create a tmp stored_file from this html string.
+                        $file = reset($file);
+                        // Strip image tags, because they will not be resolvable.
+                        $file = self::strip_images($file);
+                        $record = new \stdClass();
+                        $record->contextid = $assignment->get_context()->id;
+                        $record->component = 'assignfeedback_editpdf';
+                        $record->filearea = self::IMPORT_HTML_FILEAREA;
+                        $record->itemid = $submission->id;
+                        $record->filepath = '/';
+                        $record->filename = $plugin->get_type() . '-' . $filename;
+
+                        $htmlfile = $fs->create_file_from_string($record, $file);
+                        $convertedfile = $fs->get_converted_document($htmlfile, 'pdf');
+                        $htmlfile->delete();
+                        if ($convertedfile) {
+                            $files[$filename] = $convertedfile;
+                        }
                     }
                 }
             }

From 128d8736d3e76a27052ccc821a9ae5becb28de5c Mon Sep 17 00:00:00 2001
From: Damyon Wiese <damyon@moodle.com>
Date: Mon, 22 Feb 2016 10:14:04 +0800
Subject: [PATCH 2/9] MDL-52954 core: Unit tests for pandoc document converter.

---
 lib/tests/fixtures/pandoc-source.docx | Bin 0 -> 11065 bytes
 lib/tests/fixtures/pandoc-source.html |  12 +++
 lib/tests/pandoc_test.php             | 104 ++++++++++++++++++++++++++
 3 files changed, 116 insertions(+)
 create mode 100644 lib/tests/fixtures/pandoc-source.docx
 create mode 100644 lib/tests/fixtures/pandoc-source.html
 create mode 100644 lib/tests/pandoc_test.php

diff --git a/lib/tests/fixtures/pandoc-source.docx b/lib/tests/fixtures/pandoc-source.docx
new file mode 100644
index 0000000000000000000000000000000000000000..286c58a89265855790206b771ad41b8960e96e62
GIT binary patch
literal 11065
zcmeHtWmjFxvi8Cq7VZwgf&|y#?(S~E-6cS9_h1Pw!QI^nPH=)laCg5eIrog6owLXL
z{(yVthdI_9Yd$rrtE;-IpDqPy2uKV7GyoO=0FVNfACoxDzyJUeC;$K*01K`yY-j6i
zYU`}8;$d&<q|4xLV@;9+2~M2_00+JQ-|PRd1!`4>ZM&I(t?K*yBJFBn*&)Tnumty<
z^%D8S28T!*SJKz#_Ybz<BB}_2wA*MjnkOTNhrJ&r7t^fa-dLPS%`$qvhM;PjvQ?{&
z8ItxLuMX^{F>L)1Z$nZwd3tZjv;ZlA>(Zi9&1K}i#yiBN5eHA)shEF037<E|xhXg(
z{|3T$>0sGmk1(KzzzUI_fLD+b3%X{9&1Z!+%m8her~$^RJU$E<nG7yTqtAWyfpYZ?
z#`Hplq!Zy3(vZO;iLfr0T;+imxmAu@Y?NrPx}hYr{#{Yyxuc;)a1Q<tKRJC>Eukg-
z+@M{`Jdw}Z%C(quwMz&5#pLV#0{8DRwZAiXPH{!QrI7RDN+;eQrBmS2L?y`yc6AvL
zhY_hhMC&<;ZRxjD@=J7E8?AX?4}&x!`8C`(EGz|&GyO#UTx&OhOpVE>BjsVWvn8<h
zF5&HSSLBn6q8qUUq1|!AIyT6&US1#o3V#bvqBy*U3(!Aupy)#Yg{QuwskIX$!_WJF
z!}9-dEdDn1$oM5G2tmZ)6R1_gK_8AKc(SR56^U#&vIB^~)I%^g<dM9^_O@J-W`!la
zAD27B^0Vn5(x-U}d7&!|HD|Ks(+$K|t=w%IB489W2es1z%#p;$DlKg7W*K?o60><D
z-<0HR)C3Dsyd^VZsm#?08f;f-jwO(UQ;vxn!M}<uX>K35REJ1QEm+h<vM@gps2k8=
z*Plh!<-qfWH#?ah4#OOTF|=D?Fru}V?01Z^q`7*HXU#ND`6<q*6rO#}B4_4G<V8Os
zI_NcAHeA^Fg||xvgq9wP^FoftKm`vmspe}eAFl`D4>gSM-hvX<f5ynHNsZz?$RKYZ
z00062ESQ^}qY2}`0>#A6*u@5v&3>k_e+La1D3^ic{NKJx<3}xfn1F#NLG2&rz36$K
zvI7U35(Uc39suEO&)L-!wdwV~5AecDA<#D)5e8!Kek9bUAGz7}QbF%$sK!##z}DuM
za4%82GrGEslZ4il)jD8dB1%+_+S##Jyki{@o_75#B2$%@WqNHz^ToPqE|D{a{dk(;
zGA$P|>azK90_m%2+S?(fQNKqr<wH6sL;d9s)X>D~FXOH*%SpEzUyWmuD^vy<d0R=H
zS_%3z2=Ppy&{@K2Nh&^+CPQZPV^EnRlWJr5!=UqDJR-90H{B0V9&km&KG(-6MO(2C
zoK{i@AHBxDH+V&0egH|z2+jBMkG`V~K+vfN`ArED0DuZ|iC@0+yVo45FWD|}0)6ze
zUIccVs!VuP39?-$=dX;gTl`Q9i3OC6Bg!N!J*qaI?g{tn)s`D=7r}j~(L_i?GKO)_
zM^3NO#p4qA-t{D9K=%k@0ApqHb&d<V9zwQfC`kI1Qm1qzQ=nm(y3!XSR`otg7N?+-
z&<kQtQFtYq&0<O7;3fNKnPtJpQh%qVFY3!)2@2ScDQ`5A!k9is8gJqY%%u+hAQqJd
zEjOH}=s?N&?Q2oll{Q-4vLp0p;c_-(mG+4aD}y?gFcQ~&R^E`ip_a`?(;`!EscJPp
zcCX&nQFC=;uU4@|*d5U0$n}e}*1Nt=oDALRZn;e+Zu1tfiIQDcoeiN?vxBfK9aqc8
zy<3VG-E-)a*2;Q9Pt_Ng0F9B;*ETAir>g;paG(1weepyl$?(Q^I0Sj>x<xW&7!0I!
zZRIKH_+40V^<%`6f{gO%AgsIw!Bmee-Xak-2JynS3Cx{meAT6c^0@Ln$~PqMx62iK
zKl?@cDlzO6pUHRNV}5Ty)k<I)lIr^ibSAy!{)nX(<jCB{hj`j!Q(nA|qrRu4bst%Z
z_uR%|id$I(chst>-drh@%v!JcN3HpzA97(IhR4MRORSlb=rVI@hdHEQHnVF6rI~K3
zEezHtkz0mf7|wvQIrmJwCm5_?1co=8pSn_b9bOe=Au<|dcloUdGd)OK03pLh;o{Za
z;n>1q8t9`1XTXeT!lX?kVt;2cK?9fQXAJXC%*%i$OL7(>2;EALeB5kArKL=k?pF>e
zJ$XGug9oO407JGbrv#p+RjuA696$^_ACAeyh|v$*qxvyiI#X$xd7o)k_I!R(dd1t#
zm2)S3`y^RjWT`keW~jJt=-*dC?8q8JmD^Zc9JN5S+>SqRv1>C>inOfMU#Z^9USYWI
zBBo4H+OiE58KG@P?45KcQ^k9B?B&nQDYzawKmOxDGUKI_JC){RAyx4MVBqZCWii7l
zQfGQ`F_(^-D(mX)wmqq%($x}z$YDA;DL%=VI=s7yf<`xG*P>L)x5W-vZ)s&!jHVqe
z$rmY{%dy0hyjFCL;KO1by>`=s)wGA^y#xJfHrsRQidE5ui<ah=rLq@Mdnxa3M7t;B
z92w?E{?CzAY*Ky4cKb&fs%wu|m9}qh8H8nz>~l+1=U*B&3F^hC5KlXeR_)Q(6N+T&
zr51A6#}+K-S%L1Phzyp+)vHRBz?1otv_k5kra;UF#5RI~nOA{%V!4)pgJ7JUMJuic
zlz&PP$#rEL$<P3R0zLqM`R^cierIZ9%J}R4=4X01)RebdV#nw}nRg>`wlk)3#e;DP
zpRY=%m&Nb34I#1!OP*KA5tx$n!C&0;1M6uv48feY2{F|6$C}T7U|rz0CY-3K6jzGx
z)6k1&pARp4OM!N``S3zS{H0{>cmR<Qjg&@yQSZrdRG8w-Lm;8@Xqo7mvCKn)HUl!{
zEU>nXCT^uJ>Snbid`?xwD8RsnY|ddRB2jAYV{#r!kA~h48c74&5z$D@)^K|o;4SQK
zzqLh^nznBE8(H4OHJrf}yqGWY6AB5J?2a3J&=q0vo}K1KS(51HL0!-=E>W?{3#Q<N
zMzhy`@|`ikTkYq-9;GgkrIOUlhFS*~xC--#6s^ko+HyPJg=T9(`$}u~aC;S|vK#y|
zI&CN)2m?!^xr3|bHc!EEK;_AY0<~o3QL*=BD?=8^0@n_oT^nXg*>t?ap1)>{l*tu-
zvo@{P$bmK?#&^1{TeLKGTIj-$?c>-vjT$p+XxU#w8r)FdIenrln+cBK$O@g@GC(dP
zTs$$KMi@+~Ig+}?>zuR1^$rerN1Y>GgL5H5A6|#Ex|xFlKr+#og#2P5)juCXeZ1jL
zK|PCj%H5TZ%d<7yL^_HfsXw7o*M_2ui2Ek@X8-P{;xoVK0Lo`V{@cCV^`1=_el4M~
zVw;S>ZB@pOr^E39;#~gEz8B|{*fZ{${V(@DR2`3x9&ErV^H*aLjG2$uheHt+Z=ar8
z#4%50{l!ghWBWyN(zjrbE^shd)Ep?O$Q{}-dtkqvhmTSua(1OjLp^;CC%7D?F-vtL
z;NtGBTO$P9&V_gPaU4f=2Zn{^U}m`G%!3^}j&bX#Xc>xM(58BDN_JcRFjDG2GWOQ!
zYl%P~=xCFKcVR)17C*BUA$W6xBZq-3DTFcQ^yn80e{`(0KkxGKK0x}d+Af1Ap$wfY
za~?TWnps4>1)^`N+8*Mwt96YRj0<PUlxGA%v&10$2yGxS+K-eo?$6W&>Tv`cDM?7a
z5G6%YgIy}OraJPpr_K^M;%$Bsnsq;t0Y1`lt6d6Jw9D<o1yvCk;Y2Evt^Qn$<PEoi
z9Ni9DL4*?&w8s3gFu)v~BL`Ke)ot70UAI#RIjrUfWXk9k`3mR;i``IG1Rx&^>f%R*
z;!p4d-?mP^zR6XHu|d?);R*)7-8dM)jJvAG+K`=3C}uW%5V_M0<k56)(Sf`?s%X-7
zk3U3(y||0o(H-(pcWis{9@0%5H>a<yS%f!Lzd@>}VW)R&trR9w?uWMgI*4SEW&-yh
zG7%!!HkN@b>0l&9?mn{L`~d-q-70o%pS(CnFi`nj<-zAyXkR0psTIFc5*&`$Q`$s@
zywY7THdH3YvF3}_I6Ch{uGn3F)KQ3i(<1v0Ig=|FQ+BO%M6KLJMDS?NP;E}=Q>ylI
zsF~EKo-zeoZ_WxlM6B6BXh^{&a5cT4izYK981xZ|tRvf-mGAWZ2-tgMxa)o<Z>K!R
zABt=<5(mPY;QZ#loW{M~`eamx){y+_0s8ycMjmrZKe%ht%}TGd2jqBb-o>>DcXeJy
z#%n=wn~E77ThGA(izWP?R4k%Rj8+Dh@eoZ|Y~gk^_CtADvxIFHyL!jI?-WHnY(aGo
z8QpS(5<x238e;6MBPv+nuO~A~ABSa`4n%1T$e-BqG&DaL+|K0zc$&*8H{YD8E-d7u
z+VDK2B`LjC6hX{cgN>ROIW)HKKvtcg%0erDB_le)XdhEhW>fHeBZE@+?)vN6A*Y!|
zV2xvmGV8br0*8mrpuvjNhQDo6HU9QkMY!Z0f>J&~{|k%ir7t)K6rKOIAIe-KIQgdv
zn-~O4haw>hk*9XQ{;p}{P^`v?APZR9Mj7@OD6Z)jn=wtiS7qy+h1V9LkU>upq5-jd
z)Y7l+<w(`WuNkD{O#@{_l6sTAV0wul!{P7aH5T8vqKE?b3(`zXJJ;m;Gao*iPEb$F
z%5kk`;3*xpvBNy?jSakFq28V~{5G+5%_vejuX^NJ!@KG=9KIW-nLaaE1D=vpAE1_e
zT|v{$)u5$a^@CN<_D8or_6}QcR}QJvdOOS>f8~qfI?IEpkX?~*J4zj9R|vE$VmEZo
zeY_2CEJLiTJ!Dh@VQp8Qq~<rXvV?lAc1?ZzLhVyNLu>j4%|{<OW9-q?;jy8<2v%1!
z!+}{>>+COGHB`zN!TooF{ha;YQ?&10HgdhzcIg{eGnpu5nYuVA{j;wKQh5Eg8VE+G
zqB=ln>OXfn@k;PI+@NZ87Us8V)ydS^*}~S`>1PtlP+f9NX9D`1$h`QkH${U%)LUdk
zGCD9O<bC4y*-Hm3yvtdVs3yEQXaUFANFFk|4|E<op0uoM(b407vrkw#C32cdtOwa1
z;z26a?Z)!5)8ol>#%BX$M8zZ+e?*^szM6S(`#2zDY}_g1MbhQ+%IsP1Oa>d%OacXm
zCUL^Z3OdLjb>3Fee<^0wvnW*`m%L`Z(xn-Q=A^I$-xoWHEp!wdwIhY$72Jd?CK!v1
zSuiNj*-WOy!*<<aX|J*^f?T1y(OFc(6WnE$eB=@%lr&Cc2RF_wK?z^VW|BPlqZtwP
z*o4(5LM~xkJDx62j!~q1ZNV3ztJU~b6)j2j=?}p*6ne!C`bFgnzw;<mG#O-AWPF%}
z;BvX@?$)sfMrx>m0mZ3P(I5<3L^b>{_)uS(M#TW`7Nze9H5f9qjXDQlJSO`!+0Rlo
zA1Wh=g>ZJTAP-paMsxdnstM6$;yu2L-C)<qP$@3%pwo9d^B$Sbc3JWr8*eBwHSeiL
z3~Y+d<7<1P%Y2M@TW6A1UeG3!CZ;%5!X6#(PH_DtiYk|L|0b2HYrkL|MyK25!E(nV
zonk$YpXb{hb>t5p%LtD~3D1jqjr@a3`tl1WwXSzfhgW-gUh^0bDp14L5x(lSb-`cH
zHIzR~_d1Hkx|yfrNQId;dFlX<ZwY#sx)@VO-@0uXOaRkJrREgcqWzw2QsUn=buVe9
ztdQ0nBpyUm$z0`3Nb6_LSZ5kuNrtsqtHi($F}6a^6XNtcl!!MrQI4#8X4++7hv@kV
z9(mjyWtFZ~N>99DVe+jSouJ>~nWM`<KDH~{dqY>WIFA~25}P<tU=V-Oohm<6&YX>+
z4bg)3WxzAxBquq-64^DmgrlgE1LDBd5GjpPqb>p&pUZmMu&QSRS(+f(S!2I)+K4Hv
zGAEF~o7!1A!VW5bBXoEiIpgj{Ko-q8h$7gn?gANJ#)NGGS>T9}`4KV!^<!`6s(gHW
zc3~<%Tw#@qT^S8`SQ}SOT?SjSd67EV2ZOO$d6yrE@-Q8f7aE5I46qnmKYGt?y?x(-
z7mB1KB{Nw>DcEm&io7pPY9T(KA^yied&H<z@&;`fVITnjw0~EOW*}x<#n8yw^k<~i
z#_QV!Fk$qqemvxfZI`EgCPa;Lx^O^=cmSxso(inbYxw$j-J&p!W1fRT2M4!P8!{Zj
zlKNCcHjfZ7wHxTdlK~}EXhwd;Zn#>qJ)8oyD`1z!q(yN^5<6NjE}uX<7U_yJ;Sp6O
zt8uJ@8$w#pq~J%W3@@u^Rthd2<BFg5I^l~u$DSPAQFrKt;X6^V=#{9Z*Ku_gGkg|F
zRq0b{DkM{t#it(dd1l{So3p~%sM9>bf^@VOa46q>$dO(l3J*LBWxVq{zM9!-yC3W3
zCLQg{u`i7JK8#DPNf1q|hBk?x?`+{aePcjbim*<fsLkx!_yaE8No#T--XlM~(wF{p
zQoBTiRi#BM-|b7DZ1n2+;#RB>SD`Yi@9xVuW>}I6_y>7KD19-1aTi&N4Pml3Bt&ef
zE5ahy2}{7%1XxUe@r$!v858fjCv&pt{@_g;vgPd$B3M~Pc=oyYY+&*^ug*0%h^Wro
zI5<yU<T)1O*DgUE>3=SYQuE>QEucAq1kD%5zvs%$)JXZabun_R3q*Gy_Mdqfo&cTo
zKV30NNhne0GEQ89>4;k(R+&)PtXyBRS$|yi#K^ooJ3-O6uz9P<%8YbcZIdks&nw!D
zWbeVxcap7m!Frbj2XiYH)N@<AC#`<!DOPj;MOIaU2iM@u@FyocEE&CqjJSRF8Vb9s
z#Pm&%Xs}gIZwd;hmU<tTfRYBSEa?&W_gWqzbgz}Mkc+g0r|u6ZiQ)Pe2N#UO`Q44U
z;ITy=j8C5HV%+}GF>%l!zXgK^x&z{afgr96L{%s_+SxlX8rs|cbW0E^{9k?xWVs9_
zS$WWew~?O_7q4h?L&C;l2eOkQdrQ*UN24`FNhDAY0UvHSoe#nr;}SBDT6y_lY}-AR
zy^TT_7eu)-RZacXxbtmVsPzw85{9coB{e7`YZ|E=aE9@Hy&)O9JP;*~Ux#-0i!S7E
zRp3Tc_vrQFCef?nVSC2G1}8TaOrojF*?QK7eNvl&>Zu4+%jP~KH{@c{dtdMpPfJzP
zeye832lqq4_#{eVFteI~MVaBMv;Xxp1Dx^!(H(BSIDj#yZ*ZqG7_g$N5I8>Ok3{;K
z2Q^S;i=?Bp$RS{T)+;w(VvGL$G;`x_nhNhrqr%ohX92yySgE3IfSk4-Sh|q=L~^1I
z03TclO9Vgg#PwVZ(uxL=!NPk579Dk-6ij-~%do+F8?h{F&|Y{kA}msZ<*@lYm-uXE
z&NiuSY4S-<4$*z?i?$c3<c_NAu0dZOxD_)Z=4ky655?N&Sxgz<#N$P*nf4t!()0)R
zNA0)#pH!WFzklC(XSx}(vHFj`Tk<l*SOxN3aZm+=`n&HM+d2MPQ~&F{AiIIC$aq<+
z?@Ykplb}bK>=t@D{I9cz+_8Zf)e1$@(stpjnk7|~<WZZ49Vde;E^ZdcP`Y9l`;$Dx
z=}R}|rgp%bE8AgHJ$q<5FXLt3;f}eOg|wQ`uedXwFxtL;gLWk)^7zXi7h!JkyivgD
zMZ_qurI+nIKFog<5?K}~G?IfCAHpW)4#Eg-+fDLS^#aa`o@qM!eWg|*1FP{RJtv>q
zg<3$#{sa(1c$W<kqBy7%-k}vZ(T74TlgeUhem0>jE8enWox8J@;~V3O8oikkQ!)g7
z_i<zAcyCF?(oA<h30lu4l3~&aK@|x#^~_VkjKio&KAe;H1v+ZRxeYRL0u19`;V2Ov
zHhTF>eVru^)jCb8*(rR;Bn&#711f5dz;xHOL_*nqznGZ#8{USV{{H=7i|u)qO40zs
z-BkZEWl}-X%3TX?BpczkK0aeIs|~ap(e>MX0ZlyK1~>Y$o>*(61yLol2}hK9pJjy8
z4yZV$uN{e|XfBLhUKIGx!?`=g;8QX6Eop`W<j&|cTirAJne?5-6J7)pMd{V^Tbn38
z1DtXh)jRG%p8TH)i5;R5Vgq!#zA6L&fcU6?amr549@eJ6YV_~gpc-8Q=(Ae<1QYHy
z&^#Z16dr%>lAuN9K-O~Y0ZAT#<DVSCcz1ua=Z^|b+Kfb_ew5G)@M$jel8Y(hI^loI
z=yRYbR)r0X-ttmzuFY&OG>33Zb-jEvvl3_17Y3`d9^#)d&&XWQ?|XX@b0bgXaK14-
z4-O&djV6028eb}RePe7+`jN~RyW9kD^TV(f15QWm=3(9YnCqO(c`6?<{z<TcV=*R=
z5e*Q7y+T{hVkM7ZC2zP@o-+~WfVjfoV`E3t+W8DPZpwBd-66Y5(9jj*P;^bzT^~@z
zp{TlYCNmniu<deyb=ZS4yxe0A<-<RgK&2|IqN-ofDJraAaoET+I2v){^U^2n@96xI
zdrEa}5F3+0hr-_Pjrx7Z*uTTgRrAusXxQMywm8_#z|AP)ot<ZK<dJd8ojK|E8L?CQ
zpz_i{2y_^;Uf#G^fx!^weJ|R{4`<XJw{iDOBvTY40uul~%+YRBi+<9I*zGUnXpM9`
zbJ-Up%NF1quh@;c)|PkD2NB2_JyPcf2H?@53mx}-&UMs_b4L1)1A=zGzQ<y2jL2^x
zdhrdSOxASnW|ioCn#3vTj9DHw7cW-{^WPIFLVT~vc>C2_r&BOQ$?hnMh&p>?t%J)%
zf5)Egs}Ou$<m=1#R6wy$_0V`lq2XXzy2%wi*RPNl(>bl}z#|%#bt0F%z_u3H$(z~X
zRVC#u(YTv$!!MY4R}`!Fqogp|+7)Ti`Z;LXrf$XZDezW{R0KBhlL9%~6^HCVKb()f
zdr&2GwrTM;tYfjR%Rb&JwRI%;-P3<zuwt8y3hniwP(zSro2_1I8FWk=LrW`>D6F6w
zwm=K&^4W|Oa8r}MnaS{O(xDeQ?20Zh+=rnrd{!Irws^wyuqB_)W@wj^X?(M=*lp{*
zJ}A1|!dz{;T{A|#`Bah3Hq#O*wxd;Wwb-IhG3)G4-+*eZ!m@Y8l6|D_^=7PVtdF%A
zE`NxVCL}klxs>Bsv{|otq%gP=AJ^iod0rEwKg03o9EhZx{e8<wAxb~A09))w;KbXm
z_scrB*Q(Jp&j)IkQV)<XE}NeDKBY0sccv_(L7_yir_S+e=8ipfLne8zF4!g{P>iqP
z*@3md`H1;>s<_^iwg8UZZ`>{fx5H6Ng@-z&9*O?lav@?}ePS^|pAylIu5eMS&{ewe
zm?{??=pjO7oB6kL3!l$=ZJ-CI%qkWdGeX!{0Q8}?A<v(KB`=6P6?!~W634+FTPTvT
zkZd$+&Wqk@^6mK!3_7&*4*)FZz;FeQv`8U}3f}JD@D@-_2`+MoLt~{U%VPIble1i;
zjE+Eu&Vh69rw2Z%kM5UM1X-?9WL2W89Hm2IxVlQUja<rttC{;G_^Ezl+jmmgQjt?Q
zY}bTj<^cn(#IYP;Mfm5h04~BSkXhGT%ZO8i9_W?x-winHBvv3vyaO)^+ren#Ilw|k
zk<yN;UvRg5P|6OUH|rtJU;X?Dr5!jt50A^1Y-hJPXOcoUvx<1<esC+Cz~3d?4yFU9
zKewg}Hj~?dW2NIG7Ge#h19}T!AXF&qz=3bO*MrNpqDr0{5;(wuK4sB*pexKT(4ZDC
z<e^p0!_gYzp1(3!C(ke%tgLM05(Ft57}`u~2d==eB@6iVxuc;L+&mu8TUAY6_LgxV
z1*|=p1Vlk2t7<Z&^Vl?cJlc{KFr+GyTKQ#_Kuh;%zdktyxM7e55DxO$Jkb44<L1B}
z$bO1L{bi2-kJ9P*_3<3#ajSAaB?c7#6mMQAQUro)96}~lBF>;z{?rkOWo89ZW1YML
z(5>1lsSHv%^q0x&s7}mcj|bEJ`hGz7eEFs7UKarKr(J$PyNqFtMa0JxUR#Cxd5)3r
z&j>&hOjCrxr$F5bkC{SBy;|_*&Z9ISB88|b;4LEk9JKyHlxLo=lm^J0$Z^pIjB)N*
zqxlp7G~`^#rf7U}we^_-Px<Plp_EQ#C%~tYh>*=I2^Z2izGVs(|4G%iT1OMYKX%H+
z6pds$+Xq?@2pb_#_=*fWiC=0TVmzmu7X5Kez5$oX7iJ+no&Vbbq0V*m_&9SEx|Ypp
z56KH*`90=D-7`#;8Mun{Y9cJ0t`<*(8w97Wt`owg2Fe{hlyf^U?(<z;IeABB7|*^j
z0WlJa<F;l2gjcNN73SI`ii-mhcqLAS5jkqQB=B622s!$6u0rO`>^I*)iyRT-xftJL
zn3W0mH*6s!?L9GNjyz{hA>ZYeTSq9|X|M3ZTcSAT!g<(Q)xM8j9%ded61ZTo-Z*k{
zw{rJy#~ATZ7y_Hu_Xe&i@BM*f{4G;mSQy^ocM^hKA;v(iV8l!|mn{LbAc$%nDLw?Y
z7NhZxaIIOh!uhk7kT^J=byCcv{hlr5nM<6=h{9JZR8r0YX9PrvzJ1zl1oVjvyELWu
zuu1}##Y2)#!6=z>X6+1Yx9406R`_{&8dYgx-_5f}yPur)9`qrx%+SjBiLbVG=w+Fv
zPu5pTOf0cpNj8?g=NGaNDg#T|&SAM%f>Pvv5^T;Gf~^hWQ9AvY=zsDA*%qMXk#16i
zqIHmmFBAfZO({axKUslR$BzySuFJ=8#urxSCY2Cb=!+$B5vuhJZ^c6jE==X*$Q_(X
zjc_qiiekw(8Axs1pX=?PQV9H_p+pJ&1-f0I@M@f4x|2N~Oy7Xa>A|Xf6xOwobcnB0
zO3kE_W=K`T-t&@6GAMJ;hPegzq@DE17HIn(F;P1eVVlb~%s$|&vy~Qb>@It3<wK+l
z6(J7ZnDniEM6Fg#myT2Df~2v=qH-NNjUD@JkeZ&p`+(M*fv&E)CLsd)l+_|%+7zlf
zE_21!sH{wt=W6xQv;KvxtHE|{4^qjh?4kotSf9eE=PVXSg5LL;Hq$Bd-OIzM8!Zp>
zaQ;USE%~o<2n?Jav={&99>ZTH?r*n$=r~l6{=0y`cR~Gz1!RIMu-|&3{sjKLHRN|-
z59mDb|J5k+r=&j{1^$xt0xI?Xqix_%_@76Rf5Ep9{}=w}f#jbe{v?0@5>bZ!?;`Uz
z%HvP?pOn^La4Zn5@@oKpBe?#=|4Fm_h404sU;H1W%bybd&RzV42LLK?0f0Z5j6czT
z-#z}0wj%fq{qMcxpYT76^1lQqgDAjX!~d&9SCEDRxyR3rI|M)%h-opR{`vGj$C+`Q

literal 0
HcmV?d00001

diff --git a/lib/tests/fixtures/pandoc-source.html b/lib/tests/fixtures/pandoc-source.html
new file mode 100644
index 00000000000..45ad289a658
--- /dev/null
+++ b/lib/tests/fixtures/pandoc-source.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+<body>
+
+<h1>My First Heading</h1>
+
+<p>My first paragraph.</p>
+
+</body>
+</html>
+
+
diff --git a/lib/tests/pandoc_test.php b/lib/tests/pandoc_test.php
new file mode 100644
index 00000000000..68fcdcc1202
--- /dev/null
+++ b/lib/tests/pandoc_test.php
@@ -0,0 +1,104 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Test pandoc functionality.
+ *
+ * @package    core
+ * @category   phpunit
+ * @copyright  2016 Damyon Wiese
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+
+/**
+ * A set of tests for some of the pandoc functionality within Moodle.
+ *
+ * @package    core
+ * @category   phpunit
+ * @copyright  2016 Damyon Wiese
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class core_pandoc_testcase extends advanced_testcase {
+
+    private $testfile1 = null;
+    private $testfile2 = null;
+
+    public function setUp() {
+        $this->fixturepath = __DIR__ . DIRECTORY_SEPARATOR . 'fixtures' . DIRECTORY_SEPARATOR;
+
+        $fs = get_file_storage();
+        $filerecord = array(
+            'contextid' => context_system::instance()->id,
+            'component' => 'test',
+            'filearea' => 'unittest',
+            'itemid' => 0,
+            'filepath' => '/',
+            'filename' => 'test.html'
+        );
+        $teststring = file_get_contents($this->fixturepath . DIRECTORY_SEPARATOR . 'pandoc-source.html');
+        $this->testfile1 = $fs->create_file_from_string($filerecord, $teststring);
+
+        $filerecord = array(
+            'contextid' => context_system::instance()->id,
+            'component' => 'test',
+            'filearea' => 'unittest',
+            'itemid' => 0,
+            'filepath' => '/',
+            'filename' => 'test.docx'
+        );
+        $teststring = file_get_contents($this->fixturepath . DIRECTORY_SEPARATOR . 'pandoc-source.docx');
+        $this->testfile2 = $fs->create_file_from_string($filerecord, $teststring);
+
+        $this->resetAfterTest();
+    }
+
+    public function test_generate_pdf() {
+        global $CFG;
+
+        if (empty($CFG->pathtopandoc) || !is_executable(trim($CFG->pathtopandoc))) {
+            // No conversions are possible, sorry.
+            return $this->markTestSkipped();
+        }
+        $fs = get_file_storage();
+
+        $result = $fs->get_converted_document($this->testfile1, 'pdf');
+        $this->assertSame($result->get_mimetype(), 'application/pdf');
+        $this->assertGreaterThan(0, $result->get_filesize());
+        $result = $fs->get_converted_document($this->testfile2, 'pdf');
+        $this->assertSame($result->get_mimetype(), 'application/pdf');
+        $this->assertGreaterThan(0, $result->get_filesize());
+    }
+
+    public function test_generate_markdown() {
+        global $CFG;
+
+        if (empty($CFG->pathtopandoc) || !is_executable(trim($CFG->pathtopandoc))) {
+            // No conversions are possible, sorry.
+            return $this->markTestSkipped();
+        }
+        $fs = get_file_storage();
+
+        $result = $fs->get_converted_document($this->testfile1, 'md');
+        $this->assertSame($result->get_mimetype(), 'text/plain');
+        $this->assertGreaterThan(0, $result->get_filesize());
+        $result = $fs->get_converted_document($this->testfile2, 'md');
+        $this->assertSame($result->get_mimetype(), 'text/plain');
+        $this->assertGreaterThan(0, $result->get_filesize());
+    }
+}

From 1356d8515163e7d8ad4b1063179f12f9951d70c4 Mon Sep 17 00:00:00 2001
From: Damyon Wiese <damyon@moodle.com>
Date: Fri, 26 Feb 2016 11:52:40 +0800
Subject: [PATCH 3/9] MDL-52954 core: Change from pandoc to unoconv - it gives
 better results

Most importantly it retains formatting better, and supports different charsets far better than pandoc.
---
 admin/settings/server.php                     |   2 +-
 config-dist.php                               |  10 ++--
 lang/en/admin.php                             |   4 +-
 lib/behat/lib.php                             |   2 +-
 lib/filestorage/file_storage.php              |  52 +++++++++---------
 lib/phpunit/bootstrap.php                     |   2 +-
 ...pandoc-source.docx => unoconv-source.docx} | Bin
 ...pandoc-source.html => unoconv-source.html} |   0
 .../{pandoc_test.php => unoconv_test.php}     |  22 +++++---
 .../editpdf/classes/document_services.php     |  30 ++++++++--
 10 files changed, 75 insertions(+), 49 deletions(-)
 rename lib/tests/fixtures/{pandoc-source.docx => unoconv-source.docx} (100%)
 rename lib/tests/fixtures/{pandoc-source.html => unoconv-source.html} (100%)
 rename lib/tests/{pandoc_test.php => unoconv_test.php} (85%)

diff --git a/admin/settings/server.php b/admin/settings/server.php
index 07b7c7f895d..548031bb771 100644
--- a/admin/settings/server.php
+++ b/admin/settings/server.php
@@ -12,7 +12,7 @@ $temp->add(new admin_setting_configexecutable('pathtodu', new lang_string('patht
 $temp->add(new admin_setting_configexecutable('aspellpath', new lang_string('aspellpath', 'admin'), new lang_string('edhelpaspellpath'), ''));
 $temp->add(new admin_setting_configexecutable('pathtodot', new lang_string('pathtodot', 'admin'), new lang_string('pathtodot_help', 'admin'), ''));
 $temp->add(new admin_setting_configexecutable('pathtogs', new lang_string('pathtogs', 'admin'), new lang_string('pathtogs_help', 'admin'), '/usr/bin/gs'));
-$temp->add(new admin_setting_configexecutable('pathtopandoc', new lang_string('pathtopandoc', 'admin'), new lang_string('pathtopandoc_help', 'admin'), '/usr/bin/pandoc'));
+$temp->add(new admin_setting_configexecutable('pathtounoconv', new lang_string('pathtounoconv', 'admin'), new lang_string('pathtounoconv_help', 'admin'), '/usr/bin/unoconv'));
 $ADMIN->add('server', $temp);
 
 
diff --git a/config-dist.php b/config-dist.php
index 894e1df24c5..ae794095569 100644
--- a/config-dist.php
+++ b/config-dist.php
@@ -838,11 +838,11 @@ $CFG->admin = 'admin';
 // (Development->Profiling) built into Moodle.
 //      $CFG->pathtodot = '';
 //
-// Path to pandoc.
-// Probably something like /usr/bin/pandoc. Used to convert between document formats.
-// It is recommended to install the latest stable release of pandoc.
-// Download packages for all platforms are available from http://pandoc.org/
-//      $CFG->pathtopandoc = '';
+// Path to unoconv.
+// Probably something like /usr/bin/unoconv. Used as a fallback to convert between document formats.
+// Unoconv is used convert between file formats supported by LibreOffice.
+// Use a recent version of unoconv ( >= 0.7 ), older versions have trouble running from a webserver.
+//      $CFG->pathtounoconv = '';
 
 //=========================================================================
 // ALL DONE!  To continue installation, visit your main page with a browser
diff --git a/lang/en/admin.php b/lang/en/admin.php
index 5b64a22be08..9455d539064 100644
--- a/lang/en/admin.php
+++ b/lang/en/admin.php
@@ -779,8 +779,6 @@ $string['passwordpolicy'] = 'Password policy';
 $string['passwordresettime'] = 'Maximum time to validate password reset request';
 $string['passwordreuselimit'] = 'Password rotation limit';
 $string['passwordreuselimit_desc'] = 'Number of times a user must change their password before they are allowed to reuse a password. Hashes of previously used passwords are stored in local database table. This feature might not be compatible with some external authentication plugins.';
-$string['pathtopandoc'] = 'Path to pandoc document converter';
-$string['pathtopandoc_help'] = 'Path to pandoc document converter. This is an executable that is capable of converting between document formats. This is optional, but if specified, Moodle will be able to perform automated conversion of documents from a wide range of file formats. This is used by the Assignment module "Annotate PDF" feature.';
 $string['pathtodot'] = 'Path to dot';
 $string['pathtodot_help'] = 'Path to dot. Probably something like /usr/bin/dot. To be able to generate graphics from DOT files, you must have installed the dot executable and point to it here. Note that, for now, this only used by the profiling features (Development->Profiling) built into Moodle.';
 $string['pathtodu'] = 'Path to du';
@@ -792,6 +790,8 @@ $string['pathtopgdumpinvalid'] = 'Invalid path to pg_dump - either wrong path or
 $string['pathtopsql'] = 'Path to psql';
 $string['pathtopsqldesc'] = 'This is only necessary to enter if you have more than one psql on your system (for example if you have more than one version of postgresql installed)';
 $string['pathtopsqlinvalid'] = 'Invalid path to psql - either wrong path or not executable';
+$string['pathtounoconv'] = 'Path to unoconv document converter';
+$string['pathtounoconv_help'] = 'Path to unoconv document converter. This is an executable that is capable of converting between document formats supported by LibreOffice. This is optional, but if specified, Moodle will use it to automatically convert between document formats. This is used to support a wider range of input files for the assignment annotate PDF feature.';
 $string['pcreunicodewarning'] = 'It is strongly recommended to use PCRE PHP extension that is compatible with Unicode characters.';
 $string['perfdebug'] = 'Performance info';
 $string['performance'] = 'Performance';
diff --git a/lib/behat/lib.php b/lib/behat/lib.php
index 91b46f3fdee..201831fcda5 100644
--- a/lib/behat/lib.php
+++ b/lib/behat/lib.php
@@ -166,7 +166,7 @@ function behat_clean_init_config() {
         'umaskpermissions', 'dbtype', 'dblibrary', 'dbhost', 'dbname', 'dbuser', 'dbpass', 'prefix',
         'dboptions', 'proxyhost', 'proxyport', 'proxytype', 'proxyuser', 'proxypassword',
         'proxybypass', 'theme', 'pathtogs', 'pathtodu', 'aspellpath', 'pathtodot', 'skiplangupgrade',
-        'altcacheconfigpath', 'pathtopandoc'
+        'altcacheconfigpath', 'pathtounoconv'
     ));
 
     // Add extra allowed settings.
diff --git a/lib/filestorage/file_storage.php b/lib/filestorage/file_storage.php
index 2503b4a1fbc..6034798e99a 100644
--- a/lib/filestorage/file_storage.php
+++ b/lib/filestorage/file_storage.php
@@ -187,21 +187,29 @@ class file_storage {
      * @param string $format The desired format - e.g. 'pdf'. Formats are specified by file extension.
      * @return bool - True if the format is supported for input.
      */
-    protected function is_input_format_supported_by_pandoc($format) {
+    protected function is_format_supported_by_unoconv($format) {
+        global $CFG;
+
+        if (!isset($this->unoconvformats)) {
+            // Ask unoconv for it's list of supported document formats.
+            $cmd = escapeshellcmd(trim($CFG->pathtounoconv)) . ' --show';
+            $pipes = array();
+            $pipesspec = array(2 => array('pipe', 'w'));
+            $proc = proc_open($cmd, $pipesspec, $pipes);
+            $programoutput = stream_get_contents($pipes[2]);
+            fclose($pipes[2]);
+            proc_close($proc);
+            $matches = array();
+            preg_match_all('/\[\.(.*)\]/', $programoutput, $matches);
+
+            $this->unoconvformats = $matches[1];
+            $this->unoconvformats = array_unique($this->unoconvformats);
+        }
+
         $sanitized = trim(strtolower($format));
-        return in_array($sanitized, array('md', 'html', 'tex', 'docx', 'odt', 'epub', 'png', 'jpg', 'gif'));
+        return in_array($sanitized, $this->unoconvformats);
     }
 
-    /**
-     * Verify the format is supported.
-     *
-     * @param string $format The desired format - e.g. 'pdf'. Formats are specified by file extension.
-     * @return bool - True if the format is supported for output.
-     */
-    protected function is_output_format_supported_by_pandoc($format) {
-        $sanitized = trim(strtolower($format));
-        return in_array($sanitized, array('md', 'pdf', 'html', 'tex', 'docx', 'odt', 'odf', 'epub'));
-    }
 
     /**
      * Perform a file format conversion on the specified document.
@@ -213,17 +221,17 @@ class file_storage {
     protected function create_converted_document(stored_file $file, $format) {
         global $CFG;
 
-        if (empty($CFG->pathtopandoc) || !is_executable(trim($CFG->pathtopandoc))) {
+        if (empty($CFG->pathtounoconv) || !is_executable(trim($CFG->pathtounoconv))) {
             // No conversions are possible, sorry.
             return false;
         }
 
         $fileextension = strtolower(pathinfo($file->get_filename(), PATHINFO_EXTENSION));
-        if (!self::is_input_format_supported_by_pandoc($fileextension)) {
+        if (!self::is_format_supported_by_unoconv($fileextension)) {
             return false;
         }
 
-        if (!self::is_output_format_supported_by_pandoc($format)) {
+        if (!self::is_format_supported_by_unoconv($format)) {
             return false;
         }
 
@@ -236,21 +244,14 @@ class file_storage {
         $filename = $tmp . '/' . $localfilename;
         $file->copy_content_to($filename);
 
-        if (in_array($fileextension, array('gif', 'jpg', 'png'))) {
-            // We wrap images in a tiny html file - pandoc will generate documents from them.
-            $htmlwrapperfile = $tmp . '/wrapper.html';
-
-            file_put_contents($htmlwrapperfile, "<html><body><img src=\"$localfilename\"></body></html>");
-
-            $filename = $htmlwrapperfile;
-        }
-
         $newtmpfile = pathinfo($filename, PATHINFO_FILENAME) . '.' . $format;
 
         // Safety.
         $newtmpfile = $tmp . '/' . clean_param($newtmpfile, PARAM_FILE);
 
-        $cmd = escapeshellcmd(trim($CFG->pathtopandoc)) . ' ' .
+        $cmd = escapeshellcmd(trim($CFG->pathtounoconv)) . ' ' .
+               escapeshellarg('-f') . ' ' .
+               escapeshellarg($format) . ' ' .
                escapeshellarg('-o') . ' ' .
                escapeshellarg($newtmpfile) . ' ' .
                escapeshellarg($filename);
@@ -259,6 +260,7 @@ class file_storage {
         $output = null;
         $currentdir = getcwd();
         chdir($tmp);
+        $result = exec('env 1>&2', $output);
         $result = exec($cmd, $output);
         chdir($currentdir);
         if (!file_exists($newtmpfile)) {
diff --git a/lib/phpunit/bootstrap.php b/lib/phpunit/bootstrap.php
index 39237783a42..aff8506868e 100644
--- a/lib/phpunit/bootstrap.php
+++ b/lib/phpunit/bootstrap.php
@@ -186,7 +186,7 @@ $allowed = array('wwwroot', 'dataroot', 'dirroot', 'admin', 'directorypermission
                  'dbtype', 'dblibrary', 'dbhost', 'dbname', 'dbuser', 'dbpass', 'prefix', 'dboptions',
                  'proxyhost', 'proxyport', 'proxytype', 'proxyuser', 'proxypassword', 'proxybypass', // keep proxy settings from config.php
                  'altcacheconfigpath', 'pathtogs', 'pathtodu', 'aspellpath', 'pathtodot',
-                 'pathtopandoc'
+                 'pathtounoconv'
                 );
 $productioncfg = (array)$CFG;
 $CFG = new stdClass();
diff --git a/lib/tests/fixtures/pandoc-source.docx b/lib/tests/fixtures/unoconv-source.docx
similarity index 100%
rename from lib/tests/fixtures/pandoc-source.docx
rename to lib/tests/fixtures/unoconv-source.docx
diff --git a/lib/tests/fixtures/pandoc-source.html b/lib/tests/fixtures/unoconv-source.html
similarity index 100%
rename from lib/tests/fixtures/pandoc-source.html
rename to lib/tests/fixtures/unoconv-source.html
diff --git a/lib/tests/pandoc_test.php b/lib/tests/unoconv_test.php
similarity index 85%
rename from lib/tests/pandoc_test.php
rename to lib/tests/unoconv_test.php
index 68fcdcc1202..6c266f7bdff 100644
--- a/lib/tests/pandoc_test.php
+++ b/lib/tests/unoconv_test.php
@@ -15,7 +15,7 @@
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
 /**
- * Test pandoc functionality.
+ * Test unoconv functionality.
  *
  * @package    core
  * @category   phpunit
@@ -27,14 +27,14 @@ defined('MOODLE_INTERNAL') || die();
 
 
 /**
- * A set of tests for some of the pandoc functionality within Moodle.
+ * A set of tests for some of the unoconv functionality within Moodle.
  *
  * @package    core
  * @category   phpunit
  * @copyright  2016 Damyon Wiese
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
-class core_pandoc_testcase extends advanced_testcase {
+class core_unoconv_testcase extends advanced_testcase {
 
     private $testfile1 = null;
     private $testfile2 = null;
@@ -51,7 +51,7 @@ class core_pandoc_testcase extends advanced_testcase {
             'filepath' => '/',
             'filename' => 'test.html'
         );
-        $teststring = file_get_contents($this->fixturepath . DIRECTORY_SEPARATOR . 'pandoc-source.html');
+        $teststring = file_get_contents($this->fixturepath . DIRECTORY_SEPARATOR . 'unoconv-source.html');
         $this->testfile1 = $fs->create_file_from_string($filerecord, $teststring);
 
         $filerecord = array(
@@ -62,7 +62,7 @@ class core_pandoc_testcase extends advanced_testcase {
             'filepath' => '/',
             'filename' => 'test.docx'
         );
-        $teststring = file_get_contents($this->fixturepath . DIRECTORY_SEPARATOR . 'pandoc-source.docx');
+        $teststring = file_get_contents($this->fixturepath . DIRECTORY_SEPARATOR . 'unoconv-source.docx');
         $this->testfile2 = $fs->create_file_from_string($filerecord, $teststring);
 
         $this->resetAfterTest();
@@ -71,16 +71,18 @@ class core_pandoc_testcase extends advanced_testcase {
     public function test_generate_pdf() {
         global $CFG;
 
-        if (empty($CFG->pathtopandoc) || !is_executable(trim($CFG->pathtopandoc))) {
+        if (empty($CFG->pathtounoconv) || !is_executable(trim($CFG->pathtounoconv))) {
             // No conversions are possible, sorry.
             return $this->markTestSkipped();
         }
         $fs = get_file_storage();
 
         $result = $fs->get_converted_document($this->testfile1, 'pdf');
+        $this->assertNotFalse($result);
         $this->assertSame($result->get_mimetype(), 'application/pdf');
         $this->assertGreaterThan(0, $result->get_filesize());
         $result = $fs->get_converted_document($this->testfile2, 'pdf');
+        $this->assertNotFalse($result);
         $this->assertSame($result->get_mimetype(), 'application/pdf');
         $this->assertGreaterThan(0, $result->get_filesize());
     }
@@ -88,16 +90,18 @@ class core_pandoc_testcase extends advanced_testcase {
     public function test_generate_markdown() {
         global $CFG;
 
-        if (empty($CFG->pathtopandoc) || !is_executable(trim($CFG->pathtopandoc))) {
+        if (empty($CFG->pathtounoconv) || !is_executable(trim($CFG->pathtounoconv))) {
             // No conversions are possible, sorry.
             return $this->markTestSkipped();
         }
         $fs = get_file_storage();
 
-        $result = $fs->get_converted_document($this->testfile1, 'md');
+        $result = $fs->get_converted_document($this->testfile1, 'txt');
+        $this->assertNotFalse($result);
         $this->assertSame($result->get_mimetype(), 'text/plain');
         $this->assertGreaterThan(0, $result->get_filesize());
-        $result = $fs->get_converted_document($this->testfile2, 'md');
+        $result = $fs->get_converted_document($this->testfile2, 'txt');
+        $this->assertNotFalse($result);
         $this->assertSame($result->get_mimetype(), 'text/plain');
         $this->assertGreaterThan(0, $result->get_filesize());
     }
diff --git a/mod/assign/feedback/editpdf/classes/document_services.php b/mod/assign/feedback/editpdf/classes/document_services.php
index 83684e3fad5..4ada0a79829 100644
--- a/mod/assign/feedback/editpdf/classes/document_services.php
+++ b/mod/assign/feedback/editpdf/classes/document_services.php
@@ -53,6 +53,30 @@ class document_services {
     /** Filename for combined pdf */
     const COMBINED_PDF_FILENAME = 'combined.pdf';
 
+    /** Base64 encoded blank pdf. This is the most reliable/fastest way to generate a blank pdf. */
+    const BLANK_PDF_BASE64 = <<<EOD
+JVBERi0xLjQKJcOkw7zDtsOfCjIgMCBvYmoKPDwvTGVuZ3RoIDMgMCBSL0ZpbHRlci9GbGF0ZURl
+Y29kZT4+CnN0cmVhbQp4nDPQM1Qo5ypUMFAwALJMLU31jBQsTAz1LBSKUrnCtRTyuAIVAIcdB3IK
+ZW5kc3RyZWFtCmVuZG9iagoKMyAwIG9iago0MgplbmRvYmoKCjUgMCBvYmoKPDwKPj4KZW5kb2Jq
+Cgo2IDAgb2JqCjw8L0ZvbnQgNSAwIFIKL1Byb2NTZXRbL1BERi9UZXh0XQo+PgplbmRvYmoKCjEg
+MCBvYmoKPDwvVHlwZS9QYWdlL1BhcmVudCA0IDAgUi9SZXNvdXJjZXMgNiAwIFIvTWVkaWFCb3hb
+MCAwIDU5NSA4NDJdL0dyb3VwPDwvUy9UcmFuc3BhcmVuY3kvQ1MvRGV2aWNlUkdCL0kgdHJ1ZT4+
+L0NvbnRlbnRzIDIgMCBSPj4KZW5kb2JqCgo0IDAgb2JqCjw8L1R5cGUvUGFnZXMKL1Jlc291cmNl
+cyA2IDAgUgovTWVkaWFCb3hbIDAgMCA1OTUgODQyIF0KL0tpZHNbIDEgMCBSIF0KL0NvdW50IDE+
+PgplbmRvYmoKCjcgMCBvYmoKPDwvVHlwZS9DYXRhbG9nL1BhZ2VzIDQgMCBSCi9PcGVuQWN0aW9u
+WzEgMCBSIC9YWVogbnVsbCBudWxsIDBdCi9MYW5nKGVuLUFVKQo+PgplbmRvYmoKCjggMCBvYmoK
+PDwvQ3JlYXRvcjxGRUZGMDA1NzAwNzIwMDY5MDA3NDAwNjUwMDcyPgovUHJvZHVjZXI8RkVGRjAw
+NEMwMDY5MDA2MjAwNzIwMDY1MDA0RjAwNjYwMDY2MDA2OTAwNjMwMDY1MDAyMDAwMzQwMDJFMDAz
+ND4KL0NyZWF0aW9uRGF0ZShEOjIwMTYwMjI2MTMyMzE0KzA4JzAwJyk+PgplbmRvYmoKCnhyZWYK
+MCA5CjAwMDAwMDAwMDAgNjU1MzUgZiAKMDAwMDAwMDIyNiAwMDAwMCBuIAowMDAwMDAwMDE5IDAw
+MDAwIG4gCjAwMDAwMDAxMzIgMDAwMDAgbiAKMDAwMDAwMDM2OCAwMDAwMCBuIAowMDAwMDAwMTUx
+IDAwMDAwIG4gCjAwMDAwMDAxNzMgMDAwMDAgbiAKMDAwMDAwMDQ2NiAwMDAwMCBuIAowMDAwMDAw
+NTYyIDAwMDAwIG4gCnRyYWlsZXIKPDwvU2l6ZSA5L1Jvb3QgNyAwIFIKL0luZm8gOCAwIFIKL0lE
+IFsgPEJDN0REQUQwRDQyOTQ1OTQ2OUU4NzJCMjI1ODUyNkU4Pgo8QkM3RERBRDBENDI5NDU5NDY5
+RTg3MkIyMjU4NTI2RTg+IF0KL0RvY0NoZWNrc3VtIC9BNTYwMEZCMDAzRURCRTg0MTNBNTk3RTZF
+MURDQzJBRgo+PgpzdGFydHhyZWYKNzM2CiUlRU9GCg==
+EOD;
+
     /**
      * This function will take an int or an assignment instance and
      * return an assignment instance. It is just for convenience.
@@ -302,11 +326,7 @@ class document_services {
         }
 
         if (!$files) {
-            // This was a blank pdf.
-            $blankpdf = new pdf();
-            $content = $blankpdf->Output(self::COMBINED_PDF_FILENAME, 'S');
-            $file = $fs->create_file_from_string($record, $content);
-            $blankpdf->Close(); // No real need to close this pdf, because it has been outputted, but for clarity.
+            $file = $fs->create_file_from_string($record, base64_decode(self::BLANK_PDF_BASE64));
         } else {
             // This was a combined pdf.
             $file = $fs->create_file_from_pathname($record, $tmpfile);

From b803df8170f0fca8eb6d5b79ee9443725f73aa28 Mon Sep 17 00:00:00 2001
From: Damyon Wiese <damyon@moodle.com>
Date: Fri, 19 Feb 2016 15:56:51 +0800
Subject: [PATCH 4/9] MDL-52954 atto: Stop autosave timer, when editor
 no-longer exists.

---
 .../moodle-editor_atto-editor-debug.js           | 16 +++++++++++++++-
 .../moodle-editor_atto-editor-min.js             |  6 +++---
 .../moodle-editor_atto-editor.js                 | 16 +++++++++++++++-
 lib/editor/atto/yui/src/editor/js/autosave.js    | 16 +++++++++++++++-
 4 files changed, 48 insertions(+), 6 deletions(-)

diff --git a/lib/editor/atto/yui/build/moodle-editor_atto-editor/moodle-editor_atto-editor-debug.js b/lib/editor/atto/yui/build/moodle-editor_atto-editor/moodle-editor_atto-editor-debug.js
index d5ed2a6f9d9..0332fd002f2 100644
--- a/lib/editor/atto/yui/build/moodle-editor_atto-editor/moodle-editor_atto-editor-debug.js
+++ b/lib/editor/atto/yui/build/moodle-editor_atto-editor/moodle-editor_atto-editor-debug.js
@@ -820,6 +820,14 @@ EditorAutosave.prototype = {
      */
     autosaveInstance: null,
 
+    /**
+     * Autosave Timer.
+     *
+     * @property autosaveTimer
+     * @type object
+     */
+    autosaveTimer: null,
+
     /**
      * Initialize the autosave process
      *
@@ -904,7 +912,7 @@ EditorAutosave.prototype = {
         // Now setup the timer for periodic saves.
 
         var delay = parseInt(this.get('autosaveFrequency'), 10) * 1000;
-        Y.later(delay, this, this.saveDraft, false, true);
+        this.autosaveTimer = Y.later(delay, this, this.saveDraft, false, true);
 
         // Now setup the listener for form submission.
         form = this.textarea.ancestor('form');
@@ -968,6 +976,12 @@ EditorAutosave.prototype = {
      */
     saveDraft: function() {
         var url, params;
+
+        if (!this.editor.getDOMNode()) {
+            // Stop autosaving if the editor was removed from the page.
+            this.autosaveTimer.cancel();
+            return;
+        }
         // Only copy the text from the div to the textarea if the textarea is not currently visible.
         if (!this.editor.get('hidden')) {
             this.updateOriginal();
diff --git a/lib/editor/atto/yui/build/moodle-editor_atto-editor/moodle-editor_atto-editor-min.js b/lib/editor/atto/yui/build/moodle-editor_atto-editor/moodle-editor_atto-editor-min.js
index 6d7777988fd..10d60c3641f 100644
--- a/lib/editor/atto/yui/build/moodle-editor_atto-editor/moodle-editor_atto-editor-min.js
+++ b/lib/editor/atto/yui/build/moodle-editor_atto-editor/moodle-editor_atto-editor-min.js
@@ -1,4 +1,4 @@
 YUI.add("moodle-editor_atto-editor",function(e,t){function s(){s.superclass.constructor.apply(this,arguments)}function f(){}function l(){}function d(){}function v(){}function m(){}function g(){}function y(){}function b(){}function w(){}function E(){}var n="moodle-editor_atto-editor",r={CONTENT:"editor_atto_content",CONTENTWRAPPER:"editor_atto_content_wrap",TOOLBAR:"editor_atto_toolbar",WRAPPER:"editor_atto",HIGHLIGHT:"highlight"},i=window.rangy;e.extend(s,e.Base,{BLOCK_TAGS:["address","article","aside","audio","blockquote","canvas","dd","div","dl","fieldset","figcaption","figure","footer","form","h1","h2","h3","h4","h5","h6","header","hgroup","hr","noscript","ol","output","p","pre","section","table","tfoot","ul","video"],PLACEHOLDER_CLASS:"atto-tmp-class",ALL_NODES_SELECTOR:"[style],font[face]",FONT_FAMILY:"fontFamily",_wrapper:null,editor:null,textarea:null,textareaLabel:null,plugins:null,_eventHandles:null,initializer:function(){var t;this.textarea=e.one(document.getElementById(this.get("elementid")));if(!this.textarea)return;this._eventHandles=[],this._wrapper=e.Node.create('<div class="'+r.WRAPPER+'" />'),t=e.Handlebars.compile('<div id="{{elementid}}editable" contenteditable="true" role="textbox" spellcheck="true" aria-live="off" class="{{CSS.CONTENT}}" />'),this.editor=e.Node.create(t({elementid:this.get("elementid"),CSS:r})),this.textareaLabel=e.one('[for="'+this.get("elementid")+'"]'),this.textareaLabel&&(this.textareaLabel.generateID(),this.editor.setAttribute("aria-labelledby",this.textareaLabel.get("id"))),this.setupToolbar();var n=e.Node.create('<div class="'+r.CONTENTWRAPPER+'" />');n.appendChild(this.editor),this._wrapper.appendChild(n),this.editor.setStyle("minHeight",20*this.textarea.getAttribute("rows")+8+"px"),e.UA.ie===0&&this.editor.setStyle("height",20*this.textarea.getAttribute("rows")+8+"px"),this.disableCssStyling(),document.queryCommandSupported("DefaultParagraphSeparator")&&document.execCommand("DefaultParagraphSeparator",!1,"p"),this.textarea.get("parentNode").insert(this._wrapper,this.textarea).setAttribute("class","editor_atto_wrap"),this.textarea.hide(),this.updateFromTextArea(),this.publishEvents(),this.setupSelectionWatchers(),this.setupAutomaticPolling(),this.setupPlugins(),this.setupAutosave(),this.setupNotifications()},focus:function(){return this.editor.focus(),this},publishEvents:function(){return this.publish("change",{broadcast:!0,preventable:!0}),this.publish("pluginsloaded",{fireOnce:!0}),this.publish("atto:selectionchanged",{prefix:"atto"}),this},setupAutomaticPolling:function(){return this._registerEventHandle(this.editor.on(["keyup","cut"],this.updateOriginal,this)),this._registerEventHandle(this.editor.on("paste",this.pasteCleanup,this)),this._registerEventHandle(this.editor.on("drop",this.updateOriginalDelayed,this)),this},updateOriginalDelayed:function(){return e.soon(e.bind(this.updateOriginal,this)),this},setupPlugins:function(){this.plugins={};var t=this.get("plugins"),n,r,i,s,o;for(n in t){r=t[n];if(!r.plugins)continue;for(i in r.plugins){s=r.plugins[i],o=e.mix({name:s.name,group:r.group,editor:this.editor,toolbar:this.toolbar,host:this},s);if(typeof e.M["atto_"+s.name]=="undefined")continue;this.plugins[s.name]=new e.M["atto_"+s.name].Button(o)}}return this.fire("pluginsloaded"),this},enablePlugins:function(e){this._setPluginState(!0,e)},disablePlugins:function(e){this._setPluginState(!1,e)},_setPluginState:function(t,n){var r="disableButtons";t&&(r="enableButtons"),n?this.plugins[n][r]():e.Object.each(this.plugins,function(e){e[r]()},this)},_registerEventHandle:function(e){this._eventHandles.push(e)}},{NS:"editor_atto",ATTRS:{elementid:{value:null,writeOnce:!0},contextid:{value:null,writeOnce:!0},plugins:{value:{},writeOnce:!0}}}),e.augment(s,e.EventTarget),e.namespace("M.editor_atto").Editor=s,e.namespace("M.editor_atto.Editor").init=function(t){return new e.M.editor_atto.Editor(t)};var o="moodle-editor_atto-editor-notify",u="info",a="warning";f.ATTRS={},f.prototype={messageOverlay:null,hideTimer:null,setupNotifications:function(){var e=new Image,t=new Image;return e.src=M.util.image_url("i/warning","moodle"),t.src=M.util.image_url("i/info","moodle"),this},showMessage:function(t,n,r){var i="",s,o;return this.messageOverlay===null&&(this.messageOverlay=e.Node.create('<div class="editor_atto_notification"></div>'),this.messageOverlay.hide(!0),this.textarea.get("parentNode").append(this.messageOverlay),this.messageOverlay.on("click",function(){this.messageOverlay.hide(!0)},this)),this.hideTimer!==null&&this.hideTimer.cancel(),n===a?i='<img src="'+M.util.image_url("i/warning","moodle")+'" alt="'+M.util.get_string("warning","moodle")+'"/>':n===u&&(i='<img src="'+M.util.image_url("i/info","moodle")+'" alt="'+M.util.get_string("info","moodle")+'"/>'),s=parseInt(r,10),s<=0&&(s=6e4),n="atto_"+n,o=e.Node.create('<div class="'+n+'" role="alert" aria-live="assertive">'+i+" "+e.Escape.html(t)+"</div>"),this.messageOverlay.empty(),this.messageOverlay.append(o),this.messageOverlay.show(!0),this.hideTimer=e.later(s,this,function(){this.hideTimer=null,this.messageOverlay.hide(!0)}),this}},e.Base.mix(e.M.editor_atto.Editor,[f]),l.ATTRS={},l.prototype={_getEmptyContent:function(){return e.UA.ie&&e.UA.ie<10?"<p></p>":"<p><br></p>"},updateFromTextArea:function(){return this.editor.setHTML(""),this.editor.append(this._cleanHTML(this.textarea.get("value"))),this.editor.getHTML()===""&&this.editor.setHTML(this._getEmptyContent()),this},updateOriginal:function(){var e=this.textarea.get("value"),t=this.getCleanHTML();return t===""&&this.isActive()&&(t=this._getEmptyContent()),e!==t&&(this.textarea.set("value",t),this.textarea.simulate("change"),this.fire("change")),this}},e.Base.mix(e.M.editor_atto.Editor,[l]);var c=5e3,h=6e4,p="moodle-editor_atto-editor-autosave";d.ATTRS={autosaveEnabled:{value:!0,writeOnce:!0},autosaveFrequency:{value:60,writeOnce:!0},pageHash:{value:"",writeOnce:!0},autosaveAjaxScript:{value:"/lib/editor/atto/autosave-ajax.php",readOnly:!0}}
-,d.prototype={lastText:"",autosaveInstance:null,setupAutosave:function(){var t=-1,n,r=null,i=this.get("filepickeroptions"),s,o;if(!this.get("autosaveEnabled"))return;this.autosaveInstance=e.stamp(this);for(r in i)typeof i[r].itemid!="undefined"&&(t=i[r].itemid);o=M.cfg.wwwroot+this.get("autosaveAjaxScript"),s={sesskey:M.cfg.sesskey,contextid:this.get("contextid"),action:"resume",drafttext:"",draftid:t,elementid:this.get("elementid"),pageinstance:this.autosaveInstance,pagehash:this.get("pageHash")},e.io(o,{method:"POST",data:s,context:this,on:{success:function(e,t){var n;if(typeof t.responseText!="undefined"&&t.responseText!==""){n=JSON.parse(t.responseText);if(n.result==="<p></p>"||n.result==="<p><br></p>"||n.result==="<br>")n.result="";if(n.result==="<p>&nbsp;</p>"||n.result==="<p><br>&nbsp;</p>")n.result="";n.error||typeof n.result=="undefined"?this.showMessage(M.util.get_string("errortextrecovery","editor_atto"),a,h):n.result!==this.textarea.get("value")&&n.result!==""&&this.recoverText(n.result),this._fireSelectionChanged()}},failure:function(){this.showMessage(M.util.get_string("errortextrecovery","editor_atto"),a,h)}}});var u=parseInt(this.get("autosaveFrequency"),10)*1e3;return e.later(u,this,this.saveDraft,!1,!0),n=this.textarea.ancestor("form"),n&&n.on("submit",this.resetAutosave,this),this},resetAutosave:function(){var t=M.cfg.wwwroot+this.get("autosaveAjaxScript"),n={sesskey:M.cfg.sesskey,contextid:this.get("contextid"),action:"reset",elementid:this.get("elementid"),pageinstance:this.autosaveInstance,pagehash:this.get("pageHash")};return e.io(t,{method:"POST",data:n,sync:!0}),this},recoverText:function(e){return this.editor.setHTML(e),this.saveSelection(),this.updateOriginal(),this.lastText=e,this.showMessage(M.util.get_string("textrecovered","editor_atto"),u,h),this},saveDraft:function(){var t,n;this.editor.get("hidden")||this.updateOriginal();var r=this.textarea.get("value");if(r!==this.lastText){t=M.cfg.wwwroot+this.get("autosaveAjaxScript"),n={sesskey:M.cfg.sesskey,contextid:this.get("contextid"),action:"save",drafttext:r,elementid:this.get("elementid"),pagehash:this.get("pageHash"),pageinstance:this.autosaveInstance};var i=function(e,t){var n=parseInt(this.get("autosaveFrequency"),10)*1e3;this.showMessage(M.util.get_string("autosavefailed","editor_atto"),a,n)};e.io(t,{method:"POST",data:n,context:this,on:{error:i,failure:i,success:function(t,n){n.responseText!==""?e.soon(e.bind(i,this,[t,n])):(this.lastText=r,this.showMessage(M.util.get_string("autosavesucceeded","editor_atto"),u,c))}}})}return this}},e.Base.mix(e.M.editor_atto.Editor,[d]),v.ATTRS={},v.prototype={getCleanHTML:function(){var t=this.editor.cloneNode(!0),n;return e.each(t.all('[id^="yui"]'),function(e){e.removeAttribute("id")}),t.all(".atto_control").remove(!0),n=t.get("innerHTML"),n==="<p></p>"||n==="<p><br></p>"?"":this._cleanHTML(n)},cleanEditorHTML:function(){var e=this.editor.get("innerHTML");return this.editor.set("innerHTML",this._cleanHTML(e)),this},_cleanHTML:function(e){var t=[{regex:/<style[^>]*>[\s\S]*?<\/style>/gi,replace:""},{regex:/<!--(?![\s\S]*?-->)/gi,replace:""},{regex:/<\/?(?:title|meta|style|st\d|head|font|html|body|link)[^>]*?>/gi,replace:""}];return this._filterContentWithRules(e,t)},_filterContentWithRules:function(e,t){var n=0;for(n=0;n<t.length;n++)e=e.replace(t[n].regex,t[n].replace);return e},pasteCleanup:function(e){if(e.type==="paste"){var t=e._event;if(t&&t.clipboardData&&t.clipboardData.getData&&t.clipboardData.types){var n=t.clipboardData.types,r=!1;typeof n.contains=="function"?r=n.contains("text/html"):typeof n.indexOf=="function"&&(r=n.indexOf("text/html")>-1);if(r){var i;try{i=t.clipboardData.getData("text/html")}catch(s){return this.fallbackPasteCleanupDelayed(),!0}e.preventDefault(),i=this._cleanPasteHTML(i);var o=window.rangy.saveSelection();return this.insertContentAtFocusPoint(i),window.rangy.restoreSelection(o),window.rangy.getSelection().collapseToEnd(),this.updateOriginal(),!1}return this.fallbackPasteCleanupDelayed(),!0}return this.fallbackPasteCleanupDelayed(),!0}return this.updateOriginalDelayed(),!0},fallbackPasteCleanup:function(){var e=window.rangy.saveSelection(),t=this.editor.get("innerHTML");return this.editor.set("innerHTML",this._cleanPasteHTML(t)),this.updateOriginal(),window.rangy.restoreSelection(e),this},fallbackPasteCleanupDelayed:function(){return e.soon(e.bind(this.fallbackPasteCleanup,this)),this},_cleanPasteHTML:function(e){if(!e||e.length===0)return"";var t=[{regex:/<\s*\/html\s*>([\s\S]+)$/gi,replace:""},{regex:/<!--\[if[\s\S]*?endif\]-->/gi,replace:""},{regex:/<!--(Start|End)Fragment-->/gi,replace:""},{regex:/<xml[^>]*>[\s\S]*?<\/xml>/gi,replace:""},{regex:/<\?xml[^>]*>[\s\S]*?<\\\?xml>/gi,replace:""},{regex:/<\/?\w+:[^>]*>/gi,replace:""}];e=this._filterContentWithRules(e,t),e=this._cleanHTML(e);if(e.length===0||!e.match(/\S/))return e;var n=document.createElement("div");return n.innerHTML=e,e=n.innerHTML,n.innerHTML="",t=[{regex:/(<[^>]*?style\s*?=\s*?")([^>"]*)(")/gi,replace:function(e,t,n,r){return n=n.replace(/(?:^|;)[\s]*MSO[-:](?:&[\w]*;|[^;"])*/gi,""),t+n+r}},{regex:/(<[^>]*?class\s*?=\s*?")([^>"]*)(")/gi,replace:function(e,t,n,r){return n=n.replace(/(?:^|[\s])[\s]*MSO[_a-zA-Z0-9\-]*/gi,""),n=n.replace(/(?:^|[\s])[\s]*Apple-[_a-zA-Z0-9\-]*/gi,""),t+n+r}},{regex:/<a [^>]*?name\s*?=\s*?"OLE_LINK\d*?"[^>]*?>\s*?<\/a>/gi,replace:""}],e=this._filterContentWithRules(e,t),e=this._cleanHTML(e),e=this._cleanSpans(e),e},_cleanSpans:function(e){if(!e||e.length===0)return"";if(e.length===0||!e.match(/\S/))return e;var t=[{regex:/(<[^>]*?)(?:[\s]*(?:class|style|id)\s*?=\s*?"\s*?")+/gi,replace:"$1"}];e=this._filterContentWithRules(e,t);var n=document.createElement("div");n.innerHTML=e;var r=n.getElementsByTagName("span"),i=Array.prototype.slice.call(r,0);return i.forEach(function(e){if(!e.hasAttributes()){while(e.firstChild)e.parentNode.insertBefore(e.firstChild,e);e.parentNode.removeChild(e)}}),n.innerHTML}},e.Base.mix(e.M.editor_atto.Editor,[v]),m
-.ATTRS={},m.prototype={applyFormat:function(t,n,r,i){function s(t,n,r,i,s,o){e.soon(e.bind(function(e,t,n,r,i,s){var o=window.rangy.getSelection(),u=o.getRangeAt(0);u.setStart(i,s),o.setSingleRange(u),t.apply(n,[e,r]),o.collapseToEnd(),this.saveSelection(),this.updateOriginal()},this,t,n,r,i,s,o))}r=r||this;var o=window.rangy.getSelection();if(o.isCollapsed){var u=this.editor.once("input",s,this,n,r,i,o.anchorNode,o.anchorOffset);this.editor.onceAfter(["click","selectstart"],u.detach,u);return}n.apply(r,[t,i]),this.saveSelection(),this.updateOriginal()},replaceTags:function(t,n){t.setAttribute("data-iterate",!0);var r=this.editor.one('[data-iterate="true"]');while(r){var i=e.Node.create("<"+n+" />").setAttrs(r.getAttrs()).removeAttribute("data-iterate");r.getAttribute("style")&&i.setAttribute("style",r.getAttribute("style")),r.getAttribute("class")&&i.setAttribute("class",r.getAttribute("class"));var s=r.getDOMNode().childNodes,o;o=s[0];while(typeof o!="undefined")i.append(o),o=s[0];r.replace(i),r=this.editor.one('[data-iterate="true"]')}},changeToCSS:function(e,t){var n=window.rangy.saveSelection();this.editor.all(".rangySelectionBoundary").setStyle("display",null),this.editor.all(e).addClass(t),this.replaceTags(this.editor.all("."+t),"span"),window.rangy.restoreSelection(n)},changeToTags:function(e,t){var n=window.rangy.saveSelection();this.editor.all(".rangySelectionBoundary").setStyle("display",null),this.replaceTags(this.editor.all('span[class="'+e+'"]'),t),this.editor.all(t+'[class="'+e+'"]').removeAttribute("class"),this.editor.all("."+e).each(function(n){n.wrap("<"+t+"/>"),n.removeClass(e)}),this.editor.all('[class="'+e+'"]').removeAttribute("class"),this.editor.all(t).removeClass(e),window.rangy.restoreSelection(n)}},e.Base.mix(e.M.editor_atto.Editor,[m]),g.ATTRS={},g.prototype={toolbar:null,openMenus:null,setupToolbar:function(){return this.toolbar=e.Node.create('<div class="'+r.TOOLBAR+'" role="toolbar" aria-live="off"/>'),this.openMenus=[],this._wrapper.appendChild(this.toolbar),this.textareaLabel&&this.toolbar.setAttribute("aria-labelledby",this.textareaLabel.get("id")),this.setupToolbarNavigation(),this}},e.Base.mix(e.M.editor_atto.Editor,[g]),y.ATTRS={},y.prototype={_tabFocus:null,setupToolbarNavigation:function(){return this._wrapper.delegate("key",this.toolbarKeyboardNavigation,"down:37,39","."+r.TOOLBAR,this),this._wrapper.delegate("focus",function(e){this._setTabFocus(e.currentTarget)},"."+r.TOOLBAR+" button",this),this},toolbarKeyboardNavigation:function(e){e.preventDefault();var t=this.toolbar.all("button"),n=1,r,i=e.target.ancestor("button",!0);e.keyCode===37&&(n=-1),r=this._findFirstFocusable(t,i,n),r&&(r.focus(),this._setTabFocus(r))},_findFirstFocusable:function(e,t,n){var r=0,i,s,o,u;u=e.indexOf(t),u<-1&&(u=0);while(r<e.size()){u+=n,u<0?u=e.size()-1:u>=e.size()&&(u=0),s=e.item(u),r++;if(s.hasAttribute("hidden")||s.hasAttribute("disabled"))continue;i=s.ancestor(".atto_group");if(i.hasAttribute("hidden"))continue;o=s;break}return o},checkTabFocus:function(){if(this._tabFocus)if(this._tabFocus.hasAttribute("disabled")||this._tabFocus.hasAttribute("hidden")||this._tabFocus.ancestor(".atto_group").hasAttribute("hidden")){var e=this._findFirstFocusable(this.toolbar.all("button"),this._tabFocus,-1);e&&(this._tabFocus.compareTo(document.activeElement)&&e.focus(),this._setTabFocus(e))}return this},_setTabFocus:function(e){return this._tabFocus&&this._tabFocus.setAttribute("tabindex","-1"),this._tabFocus=e,this._tabFocus.setAttribute("tabindex",0),this.toolbar.setAttribute("aria-activedescendant",this._tabFocus.generateID()),this}},e.Base.mix(e.M.editor_atto.Editor,[y]),b.ATTRS={},b.prototype={_selections:null,_lastSelection:null,_focusFromClick:!1,_gesturestartededitor:!1,setupSelectionWatchers:function(){return this.on("atto:selectionchanged",this.saveSelection,this),this.editor.on("focus",this.restoreSelection,this),this.editor.on("mousedown",function(){this._focusFromClick=!0},this),this.editor.on("blur",function(){this._focusFromClick=!1,this.updateOriginal()},this),this.editor.on(["keyup","focus"],function(t){e.soon(e.bind(this._hasSelectionChanged,this,t))},this),e.one(document.body).on("gesturemovestart",function(e){this._wrapper.contains(e.target._node)?this._gesturestartededitor=!0:this._gesturestartededitor=!1},null,this),e.one(document.body).on("gesturemoveend",function(t){if(!this._gesturestartededitor)return;e.soon(e.bind(this._hasSelectionChanged,this,t))},{standAlone:!0},this),this},isActive:function(){var e=i.createRange(),t=i.getSelection();return t.rangeCount?!document.activeElement||!this.editor.compareTo(document.activeElement)&&!this.editor.contains(document.activeElement)?!1:(e.selectNode(this.editor.getDOMNode()),e.intersectsRange(t.getRangeAt(0))):!1},getSelectionFromNode:function(e){var t=i.createRange();return t.selectNode(e.getDOMNode()),[t]},saveSelection:function(){this.isActive()&&(this._selections=this.getSelection())},restoreSelection:function(){this._focusFromClick||this._selections&&this.setSelection(this._selections),this._focusFromClick=!1},getSelection:function(){return i.getSelection().getAllRanges()},selectionContainsNode:function(e){return i.getSelection().containsNode(e.getDOMNode(),!0)},selectionFilterMatches:function(e,t,n){typeof n=="undefined"&&(n=!0),t||(t=this.getSelectedNodes());var r=t.size()>0,i=!1,s=this.editor,o=function(e){return e===s};return s.one(e)?(t.each(function(t){if(n){if(!r||!t.ancestor(e,!0,o))r=!1}else!i&&t.ancestor(e,!0,o)&&(i=!0)},this),n?r:i):!1},getSelectedNodes:function(){var t=new e.NodeList,n,r,s,o,u;r=i.getSelection(),r.rangeCount?s=r.getRangeAt(0):s=i.createRange(),s.collapsed&&s.commonAncestorContainer!==this.editor.getDOMNode()&&s.commonAncestorContainer!==e.config.doc&&(s=s.cloneRange(),s.selectNode(s.commonAncestorContainer)),n=s.getNodes();for(u=0;u<n.length;u++)o=e.one(n[u]),this.editor.contains(o)&&t.push(o);return t},_hasSelectionChanged:function(e){var t=i.getSelection(),n,r=!1;return t.rangeCount?
-n=t.getRangeAt(0):n=i.createRange(),this._lastSelection&&!this._lastSelection.equals(n)?(r=!0,this._fireSelectionChanged(e)):(this._lastSelection=n,r)},_fireSelectionChanged:function(e){this.fire("atto:selectionchanged",{event:e,selectedNodes:this.getSelectedNodes()})},getSelectionParentNode:function(){var e=i.getSelection();return e.rangeCount?e.getRangeAt(0).commonAncestorContainer:!1},setSelection:function(e){var t=i.getSelection();t.setRanges(e)},insertContentAtFocusPoint:function(t){var n=i.getSelection(),r,s=e.Node.create(t);return n.rangeCount&&(r=n.getRangeAt(0)),r&&(r.deleteContents(),r.insertNode(s.getDOMNode())),s}},e.Base.mix(e.M.editor_atto.Editor,[b]),w.ATTRS={},w.prototype={disableCssStyling:function(){try{document.execCommand("styleWithCSS",0,!1)}catch(e){try{document.execCommand("useCSS",0,!0)}catch(t){try{document.execCommand("styleWithCSS",!1,!1)}catch(n){}}}},enableCssStyling:function(){try{document.execCommand("styleWithCSS",0,!0)}catch(e){try{document.execCommand("useCSS",0,!1)}catch(t){try{document.execCommand("styleWithCSS",!1,!0)}catch(n){}}}},toggleInlineSelectionClass:function(e){var t=e.join(" "),n=i.createClassApplier(t,{normalize:!0});n.toggleSelection()},formatSelectionInlineStyle:function(e){var t=this.PLACEHOLDER_CLASS,n=i.createClassApplier(t,{normalize:!0});n.applyToSelection(),this.editor.all("."+t).each(function(n){n.removeClass(t).setStyles(e)},this)},formatSelectionBlock:function(t,n){var r=this.getSelectionParentNode(),i,s,o,u,a,f;if(!r)return!1;i=this.editor,r=e.one(r),s=r.ancestor(function(e){var t=e.get("tagName");return t&&(t=t.toLowerCase()),e===i||t==="td"||t==="th"},!0),s&&(i=s),o=r.ancestor(this.BLOCK_TAGS.join(", "),!0),o&&(a=o.ancestor(function(e){return e===i},!1),a||(o=!1)),o||(u=e.Node.create("<p></p>"),i.get("childNodes").each(function(e){u.append(e.remove())}),i.append(u),o=u),t&&t!==""&&(f=e.Node.create("<"+t+"></"+t+">"),f.setAttrs(o.getAttrs()),o.get("childNodes").each(function(e){e.remove(),f.append(e)}),o.replace(f),o=f),n&&o.setAttrs(n);var l=this.getSelectionFromNode(o);return this.setSelection(l),o}},e.Base.mix(e.M.editor_atto.Editor,[w]),E.ATTRS={filepickeroptions:{value:{}}},E.prototype={canShowFilepicker:function(e){return typeof this.get("filepickeroptions")[e]!="undefined"},showFilepicker:function(t,n,r){var i=this;e.use("core_filepicker",function(e){var s=e.clone(i.get("filepickeroptions")[t],!0);s.formcallback=n,r&&(s.magicscope=r),M.core_filepicker.show(e,s)})}},e.Base.mix(e.M.editor_atto.Editor,[E])},"@VERSION@",{requires:["node","transition","io","overlay","escape","event","event-simulate","event-custom","node-event-html5","yui-throttle","moodle-core-notification-dialogue","moodle-core-notification-confirm","moodle-editor_atto-rangy","handlebars","timers"]});
+,d.prototype={lastText:"",autosaveInstance:null,autosaveTimer:null,setupAutosave:function(){var t=-1,n,r=null,i=this.get("filepickeroptions"),s,o;if(!this.get("autosaveEnabled"))return;this.autosaveInstance=e.stamp(this);for(r in i)typeof i[r].itemid!="undefined"&&(t=i[r].itemid);o=M.cfg.wwwroot+this.get("autosaveAjaxScript"),s={sesskey:M.cfg.sesskey,contextid:this.get("contextid"),action:"resume",drafttext:"",draftid:t,elementid:this.get("elementid"),pageinstance:this.autosaveInstance,pagehash:this.get("pageHash")},e.io(o,{method:"POST",data:s,context:this,on:{success:function(e,t){var n;if(typeof t.responseText!="undefined"&&t.responseText!==""){n=JSON.parse(t.responseText);if(n.result==="<p></p>"||n.result==="<p><br></p>"||n.result==="<br>")n.result="";if(n.result==="<p>&nbsp;</p>"||n.result==="<p><br>&nbsp;</p>")n.result="";n.error||typeof n.result=="undefined"?this.showMessage(M.util.get_string("errortextrecovery","editor_atto"),a,h):n.result!==this.textarea.get("value")&&n.result!==""&&this.recoverText(n.result),this._fireSelectionChanged()}},failure:function(){this.showMessage(M.util.get_string("errortextrecovery","editor_atto"),a,h)}}});var u=parseInt(this.get("autosaveFrequency"),10)*1e3;return this.autosaveTimer=e.later(u,this,this.saveDraft,!1,!0),n=this.textarea.ancestor("form"),n&&n.on("submit",this.resetAutosave,this),this},resetAutosave:function(){var t=M.cfg.wwwroot+this.get("autosaveAjaxScript"),n={sesskey:M.cfg.sesskey,contextid:this.get("contextid"),action:"reset",elementid:this.get("elementid"),pageinstance:this.autosaveInstance,pagehash:this.get("pageHash")};return e.io(t,{method:"POST",data:n,sync:!0}),this},recoverText:function(e){return this.editor.setHTML(e),this.saveSelection(),this.updateOriginal(),this.lastText=e,this.showMessage(M.util.get_string("textrecovered","editor_atto"),u,h),this},saveDraft:function(){var t,n;if(!this.editor.getDOMNode()){this.autosaveTimer.cancel();return}this.editor.get("hidden")||this.updateOriginal();var r=this.textarea.get("value");if(r!==this.lastText){t=M.cfg.wwwroot+this.get("autosaveAjaxScript"),n={sesskey:M.cfg.sesskey,contextid:this.get("contextid"),action:"save",drafttext:r,elementid:this.get("elementid"),pagehash:this.get("pageHash"),pageinstance:this.autosaveInstance};var i=function(e,t){var n=parseInt(this.get("autosaveFrequency"),10)*1e3;this.showMessage(M.util.get_string("autosavefailed","editor_atto"),a,n)};e.io(t,{method:"POST",data:n,context:this,on:{error:i,failure:i,success:function(t,n){n.responseText!==""?e.soon(e.bind(i,this,[t,n])):(this.lastText=r,this.showMessage(M.util.get_string("autosavesucceeded","editor_atto"),u,c))}}})}return this}},e.Base.mix(e.M.editor_atto.Editor,[d]),v.ATTRS={},v.prototype={getCleanHTML:function(){var t=this.editor.cloneNode(!0),n;return e.each(t.all('[id^="yui"]'),function(e){e.removeAttribute("id")}),t.all(".atto_control").remove(!0),n=t.get("innerHTML"),n==="<p></p>"||n==="<p><br></p>"?"":this._cleanHTML(n)},cleanEditorHTML:function(){var e=this.editor.get("innerHTML");return this.editor.set("innerHTML",this._cleanHTML(e)),this},_cleanHTML:function(e){var t=[{regex:/<style[^>]*>[\s\S]*?<\/style>/gi,replace:""},{regex:/<!--(?![\s\S]*?-->)/gi,replace:""},{regex:/<\/?(?:title|meta|style|st\d|head|font|html|body|link)[^>]*?>/gi,replace:""}];return this._filterContentWithRules(e,t)},_filterContentWithRules:function(e,t){var n=0;for(n=0;n<t.length;n++)e=e.replace(t[n].regex,t[n].replace);return e},pasteCleanup:function(e){if(e.type==="paste"){var t=e._event;if(t&&t.clipboardData&&t.clipboardData.getData&&t.clipboardData.types){var n=t.clipboardData.types,r=!1;typeof n.contains=="function"?r=n.contains("text/html"):typeof n.indexOf=="function"&&(r=n.indexOf("text/html")>-1);if(r){var i;try{i=t.clipboardData.getData("text/html")}catch(s){return this.fallbackPasteCleanupDelayed(),!0}e.preventDefault(),i=this._cleanPasteHTML(i);var o=window.rangy.saveSelection();return this.insertContentAtFocusPoint(i),window.rangy.restoreSelection(o),window.rangy.getSelection().collapseToEnd(),this.updateOriginal(),!1}return this.fallbackPasteCleanupDelayed(),!0}return this.fallbackPasteCleanupDelayed(),!0}return this.updateOriginalDelayed(),!0},fallbackPasteCleanup:function(){var e=window.rangy.saveSelection(),t=this.editor.get("innerHTML");return this.editor.set("innerHTML",this._cleanPasteHTML(t)),this.updateOriginal(),window.rangy.restoreSelection(e),this},fallbackPasteCleanupDelayed:function(){return e.soon(e.bind(this.fallbackPasteCleanup,this)),this},_cleanPasteHTML:function(e){if(!e||e.length===0)return"";var t=[{regex:/<\s*\/html\s*>([\s\S]+)$/gi,replace:""},{regex:/<!--\[if[\s\S]*?endif\]-->/gi,replace:""},{regex:/<!--(Start|End)Fragment-->/gi,replace:""},{regex:/<xml[^>]*>[\s\S]*?<\/xml>/gi,replace:""},{regex:/<\?xml[^>]*>[\s\S]*?<\\\?xml>/gi,replace:""},{regex:/<\/?\w+:[^>]*>/gi,replace:""}];e=this._filterContentWithRules(e,t),e=this._cleanHTML(e);if(e.length===0||!e.match(/\S/))return e;var n=document.createElement("div");return n.innerHTML=e,e=n.innerHTML,n.innerHTML="",t=[{regex:/(<[^>]*?style\s*?=\s*?")([^>"]*)(")/gi,replace:function(e,t,n,r){return n=n.replace(/(?:^|;)[\s]*MSO[-:](?:&[\w]*;|[^;"])*/gi,""),t+n+r}},{regex:/(<[^>]*?class\s*?=\s*?")([^>"]*)(")/gi,replace:function(e,t,n,r){return n=n.replace(/(?:^|[\s])[\s]*MSO[_a-zA-Z0-9\-]*/gi,""),n=n.replace(/(?:^|[\s])[\s]*Apple-[_a-zA-Z0-9\-]*/gi,""),t+n+r}},{regex:/<a [^>]*?name\s*?=\s*?"OLE_LINK\d*?"[^>]*?>\s*?<\/a>/gi,replace:""}],e=this._filterContentWithRules(e,t),e=this._cleanHTML(e),e=this._cleanSpans(e),e},_cleanSpans:function(e){if(!e||e.length===0)return"";if(e.length===0||!e.match(/\S/))return e;var t=[{regex:/(<[^>]*?)(?:[\s]*(?:class|style|id)\s*?=\s*?"\s*?")+/gi,replace:"$1"}];e=this._filterContentWithRules(e,t);var n=document.createElement("div");n.innerHTML=e;var r=n.getElementsByTagName("span"),i=Array.prototype.slice.call(r,0);return i.forEach(function(e){if(!e.hasAttributes()){while(e.firstChild)e.parentNode.insertBefore
+(e.firstChild,e);e.parentNode.removeChild(e)}}),n.innerHTML}},e.Base.mix(e.M.editor_atto.Editor,[v]),m.ATTRS={},m.prototype={applyFormat:function(t,n,r,i){function s(t,n,r,i,s,o){e.soon(e.bind(function(e,t,n,r,i,s){var o=window.rangy.getSelection(),u=o.getRangeAt(0);u.setStart(i,s),o.setSingleRange(u),t.apply(n,[e,r]),o.collapseToEnd(),this.saveSelection(),this.updateOriginal()},this,t,n,r,i,s,o))}r=r||this;var o=window.rangy.getSelection();if(o.isCollapsed){var u=this.editor.once("input",s,this,n,r,i,o.anchorNode,o.anchorOffset);this.editor.onceAfter(["click","selectstart"],u.detach,u);return}n.apply(r,[t,i]),this.saveSelection(),this.updateOriginal()},replaceTags:function(t,n){t.setAttribute("data-iterate",!0);var r=this.editor.one('[data-iterate="true"]');while(r){var i=e.Node.create("<"+n+" />").setAttrs(r.getAttrs()).removeAttribute("data-iterate");r.getAttribute("style")&&i.setAttribute("style",r.getAttribute("style")),r.getAttribute("class")&&i.setAttribute("class",r.getAttribute("class"));var s=r.getDOMNode().childNodes,o;o=s[0];while(typeof o!="undefined")i.append(o),o=s[0];r.replace(i),r=this.editor.one('[data-iterate="true"]')}},changeToCSS:function(e,t){var n=window.rangy.saveSelection();this.editor.all(".rangySelectionBoundary").setStyle("display",null),this.editor.all(e).addClass(t),this.replaceTags(this.editor.all("."+t),"span"),window.rangy.restoreSelection(n)},changeToTags:function(e,t){var n=window.rangy.saveSelection();this.editor.all(".rangySelectionBoundary").setStyle("display",null),this.replaceTags(this.editor.all('span[class="'+e+'"]'),t),this.editor.all(t+'[class="'+e+'"]').removeAttribute("class"),this.editor.all("."+e).each(function(n){n.wrap("<"+t+"/>"),n.removeClass(e)}),this.editor.all('[class="'+e+'"]').removeAttribute("class"),this.editor.all(t).removeClass(e),window.rangy.restoreSelection(n)}},e.Base.mix(e.M.editor_atto.Editor,[m]),g.ATTRS={},g.prototype={toolbar:null,openMenus:null,setupToolbar:function(){return this.toolbar=e.Node.create('<div class="'+r.TOOLBAR+'" role="toolbar" aria-live="off"/>'),this.openMenus=[],this._wrapper.appendChild(this.toolbar),this.textareaLabel&&this.toolbar.setAttribute("aria-labelledby",this.textareaLabel.get("id")),this.setupToolbarNavigation(),this}},e.Base.mix(e.M.editor_atto.Editor,[g]),y.ATTRS={},y.prototype={_tabFocus:null,setupToolbarNavigation:function(){return this._wrapper.delegate("key",this.toolbarKeyboardNavigation,"down:37,39","."+r.TOOLBAR,this),this._wrapper.delegate("focus",function(e){this._setTabFocus(e.currentTarget)},"."+r.TOOLBAR+" button",this),this},toolbarKeyboardNavigation:function(e){e.preventDefault();var t=this.toolbar.all("button"),n=1,r,i=e.target.ancestor("button",!0);e.keyCode===37&&(n=-1),r=this._findFirstFocusable(t,i,n),r&&(r.focus(),this._setTabFocus(r))},_findFirstFocusable:function(e,t,n){var r=0,i,s,o,u;u=e.indexOf(t),u<-1&&(u=0);while(r<e.size()){u+=n,u<0?u=e.size()-1:u>=e.size()&&(u=0),s=e.item(u),r++;if(s.hasAttribute("hidden")||s.hasAttribute("disabled"))continue;i=s.ancestor(".atto_group");if(i.hasAttribute("hidden"))continue;o=s;break}return o},checkTabFocus:function(){if(this._tabFocus)if(this._tabFocus.hasAttribute("disabled")||this._tabFocus.hasAttribute("hidden")||this._tabFocus.ancestor(".atto_group").hasAttribute("hidden")){var e=this._findFirstFocusable(this.toolbar.all("button"),this._tabFocus,-1);e&&(this._tabFocus.compareTo(document.activeElement)&&e.focus(),this._setTabFocus(e))}return this},_setTabFocus:function(e){return this._tabFocus&&this._tabFocus.setAttribute("tabindex","-1"),this._tabFocus=e,this._tabFocus.setAttribute("tabindex",0),this.toolbar.setAttribute("aria-activedescendant",this._tabFocus.generateID()),this}},e.Base.mix(e.M.editor_atto.Editor,[y]),b.ATTRS={},b.prototype={_selections:null,_lastSelection:null,_focusFromClick:!1,_gesturestartededitor:!1,setupSelectionWatchers:function(){return this.on("atto:selectionchanged",this.saveSelection,this),this.editor.on("focus",this.restoreSelection,this),this.editor.on("mousedown",function(){this._focusFromClick=!0},this),this.editor.on("blur",function(){this._focusFromClick=!1,this.updateOriginal()},this),this.editor.on(["keyup","focus"],function(t){e.soon(e.bind(this._hasSelectionChanged,this,t))},this),e.one(document.body).on("gesturemovestart",function(e){this._wrapper.contains(e.target._node)?this._gesturestartededitor=!0:this._gesturestartededitor=!1},null,this),e.one(document.body).on("gesturemoveend",function(t){if(!this._gesturestartededitor)return;e.soon(e.bind(this._hasSelectionChanged,this,t))},{standAlone:!0},this),this},isActive:function(){var e=i.createRange(),t=i.getSelection();return t.rangeCount?!document.activeElement||!this.editor.compareTo(document.activeElement)&&!this.editor.contains(document.activeElement)?!1:(e.selectNode(this.editor.getDOMNode()),e.intersectsRange(t.getRangeAt(0))):!1},getSelectionFromNode:function(e){var t=i.createRange();return t.selectNode(e.getDOMNode()),[t]},saveSelection:function(){this.isActive()&&(this._selections=this.getSelection())},restoreSelection:function(){this._focusFromClick||this._selections&&this.setSelection(this._selections),this._focusFromClick=!1},getSelection:function(){return i.getSelection().getAllRanges()},selectionContainsNode:function(e){return i.getSelection().containsNode(e.getDOMNode(),!0)},selectionFilterMatches:function(e,t,n){typeof n=="undefined"&&(n=!0),t||(t=this.getSelectedNodes());var r=t.size()>0,i=!1,s=this.editor,o=function(e){return e===s};return s.one(e)?(t.each(function(t){if(n){if(!r||!t.ancestor(e,!0,o))r=!1}else!i&&t.ancestor(e,!0,o)&&(i=!0)},this),n?r:i):!1},getSelectedNodes:function(){var t=new e.NodeList,n,r,s,o,u;r=i.getSelection(),r.rangeCount?s=r.getRangeAt(0):s=i.createRange(),s.collapsed&&s.commonAncestorContainer!==this.editor.getDOMNode()&&s.commonAncestorContainer!==e.config.doc&&(s=s.cloneRange(),s.selectNode(s.commonAncestorContainer)),n=s.getNodes();for(u=0;u<n.length;u++)o=e.one(n[u]),this.editor.contains
+(o)&&t.push(o);return t},_hasSelectionChanged:function(e){var t=i.getSelection(),n,r=!1;return t.rangeCount?n=t.getRangeAt(0):n=i.createRange(),this._lastSelection&&!this._lastSelection.equals(n)?(r=!0,this._fireSelectionChanged(e)):(this._lastSelection=n,r)},_fireSelectionChanged:function(e){this.fire("atto:selectionchanged",{event:e,selectedNodes:this.getSelectedNodes()})},getSelectionParentNode:function(){var e=i.getSelection();return e.rangeCount?e.getRangeAt(0).commonAncestorContainer:!1},setSelection:function(e){var t=i.getSelection();t.setRanges(e)},insertContentAtFocusPoint:function(t){var n=i.getSelection(),r,s=e.Node.create(t);return n.rangeCount&&(r=n.getRangeAt(0)),r&&(r.deleteContents(),r.insertNode(s.getDOMNode())),s}},e.Base.mix(e.M.editor_atto.Editor,[b]),w.ATTRS={},w.prototype={disableCssStyling:function(){try{document.execCommand("styleWithCSS",0,!1)}catch(e){try{document.execCommand("useCSS",0,!0)}catch(t){try{document.execCommand("styleWithCSS",!1,!1)}catch(n){}}}},enableCssStyling:function(){try{document.execCommand("styleWithCSS",0,!0)}catch(e){try{document.execCommand("useCSS",0,!1)}catch(t){try{document.execCommand("styleWithCSS",!1,!0)}catch(n){}}}},toggleInlineSelectionClass:function(e){var t=e.join(" "),n=i.createClassApplier(t,{normalize:!0});n.toggleSelection()},formatSelectionInlineStyle:function(e){var t=this.PLACEHOLDER_CLASS,n=i.createClassApplier(t,{normalize:!0});n.applyToSelection(),this.editor.all("."+t).each(function(n){n.removeClass(t).setStyles(e)},this)},formatSelectionBlock:function(t,n){var r=this.getSelectionParentNode(),i,s,o,u,a,f;if(!r)return!1;i=this.editor,r=e.one(r),s=r.ancestor(function(e){var t=e.get("tagName");return t&&(t=t.toLowerCase()),e===i||t==="td"||t==="th"},!0),s&&(i=s),o=r.ancestor(this.BLOCK_TAGS.join(", "),!0),o&&(a=o.ancestor(function(e){return e===i},!1),a||(o=!1)),o||(u=e.Node.create("<p></p>"),i.get("childNodes").each(function(e){u.append(e.remove())}),i.append(u),o=u),t&&t!==""&&(f=e.Node.create("<"+t+"></"+t+">"),f.setAttrs(o.getAttrs()),o.get("childNodes").each(function(e){e.remove(),f.append(e)}),o.replace(f),o=f),n&&o.setAttrs(n);var l=this.getSelectionFromNode(o);return this.setSelection(l),o}},e.Base.mix(e.M.editor_atto.Editor,[w]),E.ATTRS={filepickeroptions:{value:{}}},E.prototype={canShowFilepicker:function(e){return typeof this.get("filepickeroptions")[e]!="undefined"},showFilepicker:function(t,n,r){var i=this;e.use("core_filepicker",function(e){var s=e.clone(i.get("filepickeroptions")[t],!0);s.formcallback=n,r&&(s.magicscope=r),M.core_filepicker.show(e,s)})}},e.Base.mix(e.M.editor_atto.Editor,[E])},"@VERSION@",{requires:["node","transition","io","overlay","escape","event","event-simulate","event-custom","node-event-html5","yui-throttle","moodle-core-notification-dialogue","moodle-core-notification-confirm","moodle-editor_atto-rangy","handlebars","timers"]});
diff --git a/lib/editor/atto/yui/build/moodle-editor_atto-editor/moodle-editor_atto-editor.js b/lib/editor/atto/yui/build/moodle-editor_atto-editor/moodle-editor_atto-editor.js
index d15b0a73d50..9f6f7797b50 100644
--- a/lib/editor/atto/yui/build/moodle-editor_atto-editor/moodle-editor_atto-editor.js
+++ b/lib/editor/atto/yui/build/moodle-editor_atto-editor/moodle-editor_atto-editor.js
@@ -815,6 +815,14 @@ EditorAutosave.prototype = {
      */
     autosaveInstance: null,
 
+    /**
+     * Autosave Timer.
+     *
+     * @property autosaveTimer
+     * @type object
+     */
+    autosaveTimer: null,
+
     /**
      * Initialize the autosave process
      *
@@ -897,7 +905,7 @@ EditorAutosave.prototype = {
         // Now setup the timer for periodic saves.
 
         var delay = parseInt(this.get('autosaveFrequency'), 10) * 1000;
-        Y.later(delay, this, this.saveDraft, false, true);
+        this.autosaveTimer = Y.later(delay, this, this.saveDraft, false, true);
 
         // Now setup the listener for form submission.
         form = this.textarea.ancestor('form');
@@ -961,6 +969,12 @@ EditorAutosave.prototype = {
      */
     saveDraft: function() {
         var url, params;
+
+        if (!this.editor.getDOMNode()) {
+            // Stop autosaving if the editor was removed from the page.
+            this.autosaveTimer.cancel();
+            return;
+        }
         // Only copy the text from the div to the textarea if the textarea is not currently visible.
         if (!this.editor.get('hidden')) {
             this.updateOriginal();
diff --git a/lib/editor/atto/yui/src/editor/js/autosave.js b/lib/editor/atto/yui/src/editor/js/autosave.js
index a549c8012fb..4dd4ed44dc5 100644
--- a/lib/editor/atto/yui/src/editor/js/autosave.js
+++ b/lib/editor/atto/yui/src/editor/js/autosave.js
@@ -99,6 +99,14 @@ EditorAutosave.prototype = {
      */
     autosaveInstance: null,
 
+    /**
+     * Autosave Timer.
+     *
+     * @property autosaveTimer
+     * @type object
+     */
+    autosaveTimer: null,
+
     /**
      * Initialize the autosave process
      *
@@ -183,7 +191,7 @@ EditorAutosave.prototype = {
         // Now setup the timer for periodic saves.
 
         var delay = parseInt(this.get('autosaveFrequency'), 10) * 1000;
-        Y.later(delay, this, this.saveDraft, false, true);
+        this.autosaveTimer = Y.later(delay, this, this.saveDraft, false, true);
 
         // Now setup the listener for form submission.
         form = this.textarea.ancestor('form');
@@ -247,6 +255,12 @@ EditorAutosave.prototype = {
      */
     saveDraft: function() {
         var url, params;
+
+        if (!this.editor.getDOMNode()) {
+            // Stop autosaving if the editor was removed from the page.
+            this.autosaveTimer.cancel();
+            return;
+        }
         // Only copy the text from the div to the textarea if the textarea is not currently visible.
         if (!this.editor.get('hidden')) {
             this.updateOriginal();

From 84a32f156e828ca5ad7509947633dd47d2039d23 Mon Sep 17 00:00:00 2001
From: Damyon Wiese <damyon@moodle.com>
Date: Tue, 23 Feb 2016 16:47:30 +0800
Subject: [PATCH 5/9] MDL-52954 forms: Allow form submission via ajax (ignoring
 GET and POST)

---
 lib/formslib.php           | 12 +++++-
 mod/assign/externallib.php | 81 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 91 insertions(+), 2 deletions(-)

diff --git a/lib/formslib.php b/lib/formslib.php
index 5b79091d69a..483db6ea107 100644
--- a/lib/formslib.php
+++ b/lib/formslib.php
@@ -131,6 +131,9 @@ abstract class moodleform {
     /** @var array globals workaround */
     protected $_customdata;
 
+    /** @var array submitted form data when using mforms with ajax */
+    protected $_ajaxformdata;
+
     /** @var object definition_after_data executed flag */
     protected $_definition_finalized = false;
 
@@ -156,8 +159,9 @@ abstract class moodleform {
      *               it if you don't need to as the target attribute is deprecated in xhtml strict.
      * @param mixed $attributes you can pass a string of html attributes here or an array.
      * @param bool $editable
+     * @param array $ajaxformdata Forms submitted via ajax, must pass their data here, instead of relying on _GET and _POST.
      */
-    public function __construct($action=null, $customdata=null, $method='post', $target='', $attributes=null, $editable=true) {
+    public function __construct($action=null, $customdata=null, $method='post', $target='', $attributes=null, $editable=true, $ajaxformdata=null) {
         global $CFG, $FULLME;
         // no standard mform in moodle should allow autocomplete with the exception of user signup
         if (empty($attributes)) {
@@ -170,6 +174,7 @@ abstract class moodleform {
             }
         }
 
+
         if (empty($action)){
             // do not rely on PAGE->url here because dev often do not setup $actualurl properly in admin_externalpage_setup()
             $action = strip_querystring($FULLME);
@@ -183,6 +188,7 @@ abstract class moodleform {
         // Assign custom data first, so that get_form_identifier can use it.
         $this->_customdata = $customdata;
         $this->_formname = $this->get_form_identifier();
+        $this->_ajaxformdata = $ajaxformdata;
 
         $this->_form = new MoodleQuickForm($this->_formname, $method, $action, $target, $attributes);
         if (!$editable){
@@ -272,7 +278,9 @@ abstract class moodleform {
      */
     function _process_submission($method) {
         $submission = array();
-        if ($method == 'post') {
+        if (!empty($this->_ajaxformdata) && defined('AJAX_SCRIPT')) {
+            $submission = $this->_ajaxformdata;
+        } else if ($method == 'post') {
             if (!empty($_POST)) {
                 $submission = $_POST;
             }
diff --git a/mod/assign/externallib.php b/mod/assign/externallib.php
index 2f769e144f8..74a7e94a4b9 100644
--- a/mod/assign/externallib.php
+++ b/mod/assign/externallib.php
@@ -1506,6 +1506,87 @@ class mod_assign_external extends external_api {
         return new external_warnings();
     }
 
+    /**
+     * Describes the parameters for submit_grading_form webservice.
+     * @return external_external_function_parameters
+     * @since  Moodle 3.1
+     */
+    public static function submit_grading_form_parameters() {
+        return new external_function_parameters(
+            array(
+                'assignmentid' => new external_value(PARAM_INT, 'The assignment id to operate on'),
+                'userid' => new external_value(PARAM_INT, 'The user id the submission belongs to'),
+                'jsonformdata' => new external_value(PARAM_RAW, 'The data from the grading form, encoded as a json array')
+            )
+        );
+    }
+
+    /**
+     * Submit the logged in users assignment for grading.
+     *
+     * @param int $assignmentid The id of the assignment
+     * @param int $userid The id of the user the submission belongs to.
+     * @param string $jsonformdata The data from the form, encoded as a json array.
+     * @return array of warnings to indicate any errors.
+     * @since Moodle 2.6
+     */
+    public static function submit_grading_form($assignmentid, $userid, $jsonformdata) {
+        global $CFG, $USER;
+
+        require_once($CFG->dirroot . '/mod/assign/locallib.php');
+        require_once($CFG->dirroot . '/mod/assign/gradeform.php');
+
+        $params = self::validate_parameters(self::submit_grading_form_parameters(),
+                                            array('assignmentid' => $assignmentid,
+                                                  'userid' => $userid,
+                                                  'jsonformdata' => $jsonformdata));
+
+        $cm = get_coursemodule_from_instance('assign', $params['assignmentid'], 0, false, MUST_EXIST);
+        $context = context_module::instance($cm->id);
+        self::validate_context($context);
+
+        $assignment = new assign($context, $cm, null);
+
+        $serialiseddata = json_decode($params['jsonformdata']);
+
+        $data = array();
+        parse_str($serialiseddata, $data);
+
+        $warnings = array();
+
+        $options = array('userid'=>$params['userid'],
+                         'attemptnumber'=>$data['attemptnumber'],
+                         'rownum'=>0,
+                         'gradingpanel' => true);
+
+        $customdata = (object) $data;
+        $formparams = array($assignment, $customdata, $options);
+
+        // Data is injected into the form by the last param for the constructor.
+        $mform = new mod_assign_grade_form(null, $formparams, 'post', '', null, true, $data);
+        $validateddata = $mform->get_data();
+
+        if ($validateddata) {
+            $assignment->save_grade($params['userid'], $validateddata);
+        } else {
+            $warnings[] = self::generate_warning($params['assignmentid'],
+                                                 'couldnotsavegrade',
+                                                 'Form validation failed.');
+        }
+
+
+        return $warnings;
+    }
+
+    /**
+     * Describes the return for submit_grading_form
+     * @return external_external_function_parameters
+     * @since  Moodle 3.1
+     */
+    public static function submit_grading_form_returns() {
+        return new external_warnings();
+    }
+
     /**
      * Describes the parameters for submit_for_grading
      * @return external_external_function_parameters

From 2a3647bae52d5271bfb091912aef04d7d97e02b2 Mon Sep 17 00:00:00 2001
From: Damyon Wiese <damyon@moodle.com>
Date: Wed, 24 Feb 2016 14:48:23 +0800
Subject: [PATCH 6/9] MDL-52954 marking guide: Wrap radio fields in a label for
 styling

---
 grade/grading/form/guide/renderer.php | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/grade/grading/form/guide/renderer.php b/grade/grading/form/guide/renderer.php
index caa4e193689..d1cfd005218 100644
--- a/grade/grading/form/guide/renderer.php
+++ b/grade/grading/form/guide/renderer.php
@@ -647,21 +647,25 @@ class gradingform_guide_renderer extends plugin_renderer_base {
                 $checked_s2 = $checked;
             }
 
-            $radio = html_writer::tag('input', get_string('showmarkerdesc', 'gradingform_guide'), array('type' => 'radio',
+            $radio1 = html_writer::tag('input', get_string('showmarkerdesc', 'gradingform_guide'), array('type' => 'radio',
                 'name' => 'showmarkerdesc',
                 'value' => "true")+$checked1);
-            $radio .= html_writer::tag('input', get_string('hidemarkerdesc', 'gradingform_guide'), array('type' => 'radio',
+            $radio1 = html_writer::tag('label', $radio1);
+            $radio2 .= html_writer::tag('input', get_string('hidemarkerdesc', 'gradingform_guide'), array('type' => 'radio',
                 'name' => 'showmarkerdesc',
                 'value' => "false")+$checked2);
-            $output .= html_writer::tag('div', $radio, array('class' => 'showmarkerdesc'));
+            $radio2 = html_writer::tag('label', $radio2);
+            $output .= html_writer::tag('div', $radio1 . $radio2, array('class' => 'showmarkerdesc'));
 
-            $radio = html_writer::tag('input', get_string('showstudentdesc', 'gradingform_guide'), array('type' => 'radio',
+            $radio1 = html_writer::tag('input', get_string('showstudentdesc', 'gradingform_guide'), array('type' => 'radio',
                 'name' => 'showstudentdesc',
                 'value' => "true")+$checked_s1);
-            $radio .= html_writer::tag('input', get_string('hidestudentdesc', 'gradingform_guide'), array('type' => 'radio',
+            $radio1 = html_writer::tag('label', $radio1);
+            $radio2 = html_writer::tag('input', get_string('hidestudentdesc', 'gradingform_guide'), array('type' => 'radio',
                 'name' => 'showstudentdesc',
                 'value' => "false")+$checked_s2);
-            $output .= html_writer::tag('div', $radio, array('class' => 'showstudentdesc'));
+            $radio2 = html_writer::tag('label', $radio2);
+            $output .= html_writer::tag('div', $radio1 . $radio2, array('class' => 'showstudentdesc'));
         }
         return $output;
     }
@@ -775,4 +779,4 @@ class gradingform_guide_renderer extends plugin_renderer_base {
 
         return $html;
     }
-}
\ No newline at end of file
+}

From bb690849c90ddf091abc9362c1d32e842aa0d89b Mon Sep 17 00:00:00 2001
From: Damyon Wiese <damyon@moodle.com>
Date: Mon, 1 Feb 2016 16:13:46 +0800
Subject: [PATCH 7/9] MDL-52954 assign: Rebuild the assignment single grade
 page.

---
 grade/grading/form/guide/renderer.php         |   2 +-
 lib/amd/build/form-autocomplete.min.js        |   2 +-
 lib/amd/build/tooltip.min.js                  |   1 +
 lib/amd/src/form-autocomplete.js              |   3 +-
 lib/amd/src/tooltip.js                        | 133 ++++
 lib/db/services.php                           |   1 +
 lib/filestorage/file_storage.php              |   8 +-
 lib/formslib.php                              |   2 +-
 lib/upgrade.txt                               |   5 +-
 mod/assign/amd/build/grading_actions.min.js   |   1 +
 .../build/grading_form_change_checker.min.js  |   1 +
 .../amd/build/grading_navigation.min.js       |   1 +
 .../build/grading_navigation_user_info.min.js |   1 +
 mod/assign/amd/build/grading_panel.min.js     |   1 +
 .../amd/build/grading_review_panel.min.js     |   1 +
 .../amd/build/participant_selector.min.js     |   1 +
 mod/assign/amd/src/grading_actions.js         |  89 +++
 .../amd/src/grading_form_change_checker.js    |  60 ++
 mod/assign/amd/src/grading_navigation.js      | 470 ++++++++++++
 .../amd/src/grading_navigation_user_info.js   | 147 ++++
 mod/assign/amd/src/grading_panel.js           | 307 ++++++++
 mod/assign/amd/src/grading_review_panel.js    |  62 ++
 mod/assign/amd/src/participant_selector.js    | 113 +++
 mod/assign/classes/output/grading_app.php     | 163 ++++
 mod/assign/db/services.php                    |  20 +
 mod/assign/externallib.php                    | 191 +++++
 .../editpdf/classes/event/observer.php        |  66 ++
 .../feedback/editpdf/classes/renderer.php     |  16 +-
 .../classes/task/convert_submissions.php      | 107 +++
 mod/assign/feedback/editpdf/db/events.php     |  36 +
 mod/assign/feedback/editpdf/db/install.xml    |  14 +-
 mod/assign/feedback/editpdf/db/tasks.php      |  44 ++
 mod/assign/feedback/editpdf/db/upgrade.php    |  28 +-
 .../lang/en/assignfeedback_editpdf.php        |   3 +-
 mod/assign/feedback/editpdf/locallib.php      |  29 +-
 mod/assign/feedback/editpdf/styles.css        |  55 +-
 .../editpdf/tests/behat/annotate_pdf.feature  |  27 +-
 .../behat/behat_assignfeedback_editpdf.php    |  29 +
 .../tests/behat/group_annotations.feature     |  14 +-
 mod/assign/feedback/editpdf/version.php       |   2 +-
 ...dle-assignfeedback_editpdf-editor-debug.js | 105 ++-
 ...oodle-assignfeedback_editpdf-editor-min.js |  16 +-
 .../moodle-assignfeedback_editpdf-editor.js   | 105 ++-
 .../editpdf/yui/src/editor/js/editor.js       | 103 ++-
 .../editpdf/yui/src/editor/js/globals.js      |   1 +
 .../editpdf/yui/src/editor/meta/editor.json   |   1 +
 mod/assign/feedbackplugin.php                 |   9 +
 mod/assign/gradingtable.php                   |  12 +-
 mod/assign/lang/en/assign.php                 |  29 +-
 mod/assign/lib.php                            |  33 +
 mod/assign/locallib.php                       | 377 ++++++++--
 mod/assign/renderable.php                     |  89 +++
 mod/assign/renderer.php                       | 220 +++++-
 mod/assign/styles.css                         | 696 +++++++++++++++++-
 .../attempt_history_chooser.mustache          |  16 +
 mod/assign/templates/grading_actions.mustache |  46 ++
 mod/assign/templates/grading_app.mustache     |  56 ++
 .../templates/grading_navigation.mustache     |  73 ++
 .../grading_navigation_no_users.mustache      |  34 +
 .../grading_navigation_user_info.mustache     |  40 +
 .../grading_navigation_user_selector.mustache |  67 ++
 .../grading_navigation_user_summary.mustache  |  40 +
 mod/assign/templates/grading_panel.mustache   |  39 +
 .../grading_save_in_progress.mustache         |  35 +
 .../list_participant_user_summary.mustache    |  41 ++
 mod/assign/templates/loading.mustache         |  34 +
 mod/assign/templates/popout_button.mustache   |   1 +
 mod/assign/templates/review_panel.mustache    |  34 +
 mod/assign/tests/base_test.php                |   4 +
 .../tests/behat/allow_another_attempt.feature |  20 +-
 mod/assign/tests/behat/comment_inline.feature |   9 +-
 .../display_error_message_onbadformat.feature |   8 +-
 mod/assign/tests/behat/display_grade.feature  |  18 +-
 .../behat/edit_previous_feedback.feature      |  16 +-
 .../tests/behat/filter_by_marker.feature      |  10 +-
 mod/assign/tests/behat/grading_status.feature |  36 +-
 .../tests/behat/grant_extension.feature       |   4 +-
 .../tests/behat/group_submission.feature      |   8 +-
 .../tests/behat/outcome_grading.feature       |  25 +-
 .../behat/prevent_submission_changes.feature  |   8 +-
 mod/assign/tests/behat/quickgrading.feature   |  21 +-
 .../behat/reopen_locked_submission.feature    |   6 +-
 .../tests/behat/steps_blind_marking.feature   |  37 +-
 .../tests/behat/submission_comments.feature   |  24 +-
 .../tests/behat/submit_without_group.feature  |   8 +-
 theme/bootstrapbase/less/moodle/forms.less    |   2 +
 86 files changed, 4593 insertions(+), 279 deletions(-)
 create mode 100644 lib/amd/build/tooltip.min.js
 create mode 100644 lib/amd/src/tooltip.js
 create mode 100644 mod/assign/amd/build/grading_actions.min.js
 create mode 100644 mod/assign/amd/build/grading_form_change_checker.min.js
 create mode 100644 mod/assign/amd/build/grading_navigation.min.js
 create mode 100644 mod/assign/amd/build/grading_navigation_user_info.min.js
 create mode 100644 mod/assign/amd/build/grading_panel.min.js
 create mode 100644 mod/assign/amd/build/grading_review_panel.min.js
 create mode 100644 mod/assign/amd/build/participant_selector.min.js
 create mode 100644 mod/assign/amd/src/grading_actions.js
 create mode 100644 mod/assign/amd/src/grading_form_change_checker.js
 create mode 100644 mod/assign/amd/src/grading_navigation.js
 create mode 100644 mod/assign/amd/src/grading_navigation_user_info.js
 create mode 100644 mod/assign/amd/src/grading_panel.js
 create mode 100644 mod/assign/amd/src/grading_review_panel.js
 create mode 100644 mod/assign/amd/src/participant_selector.js
 create mode 100644 mod/assign/classes/output/grading_app.php
 create mode 100644 mod/assign/feedback/editpdf/classes/event/observer.php
 create mode 100644 mod/assign/feedback/editpdf/classes/task/convert_submissions.php
 create mode 100644 mod/assign/feedback/editpdf/db/events.php
 mode change 100644 => 100755 mod/assign/feedback/editpdf/db/install.xml
 create mode 100644 mod/assign/feedback/editpdf/db/tasks.php
 create mode 100644 mod/assign/templates/attempt_history_chooser.mustache
 create mode 100644 mod/assign/templates/grading_actions.mustache
 create mode 100644 mod/assign/templates/grading_app.mustache
 create mode 100644 mod/assign/templates/grading_navigation.mustache
 create mode 100644 mod/assign/templates/grading_navigation_no_users.mustache
 create mode 100644 mod/assign/templates/grading_navigation_user_info.mustache
 create mode 100644 mod/assign/templates/grading_navigation_user_selector.mustache
 create mode 100644 mod/assign/templates/grading_navigation_user_summary.mustache
 create mode 100644 mod/assign/templates/grading_panel.mustache
 create mode 100644 mod/assign/templates/grading_save_in_progress.mustache
 create mode 100644 mod/assign/templates/list_participant_user_summary.mustache
 create mode 100644 mod/assign/templates/loading.mustache
 create mode 100644 mod/assign/templates/popout_button.mustache
 create mode 100644 mod/assign/templates/review_panel.mustache

diff --git a/grade/grading/form/guide/renderer.php b/grade/grading/form/guide/renderer.php
index d1cfd005218..928094ef17b 100644
--- a/grade/grading/form/guide/renderer.php
+++ b/grade/grading/form/guide/renderer.php
@@ -651,7 +651,7 @@ class gradingform_guide_renderer extends plugin_renderer_base {
                 'name' => 'showmarkerdesc',
                 'value' => "true")+$checked1);
             $radio1 = html_writer::tag('label', $radio1);
-            $radio2 .= html_writer::tag('input', get_string('hidemarkerdesc', 'gradingform_guide'), array('type' => 'radio',
+            $radio2 = html_writer::tag('input', get_string('hidemarkerdesc', 'gradingform_guide'), array('type' => 'radio',
                 'name' => 'showmarkerdesc',
                 'value' => "false")+$checked2);
             $radio2 = html_writer::tag('label', $radio2);
diff --git a/lib/amd/build/form-autocomplete.min.js b/lib/amd/build/form-autocomplete.min.js
index d024ddb7a1a..7ea396f9482 100644
--- a/lib/amd/build/form-autocomplete.min.js
+++ b/lib/amd/build/form-autocomplete.min.js
@@ -1 +1 @@
-define(["jquery","core/log","core/str","core/templates","core/notification"],function(a,b,c,d,e){var f={DOWN:40,ENTER:13,SPACE:32,ESCAPE:27,COMMA:188,UP:38},g=function(b,c){var d=a(document.getElementById(c.selectionId)),e=d.children("[aria-selected=true]").length;for(b%=e;0>b;)b+=e;var f=a(d.children("[aria-selected=true]").get(b)),g=c.selectionId+"-"+b;d.children().attr("data-active-selection",!1).attr("id",""),f.attr("data-active-selection",!0).attr("id",g),d.attr("aria-activedescendant",g)},h=function(b,c,f){var h=[],i=a(document.getElementById(c.selectionId)),j=i.attr("aria-activedescendant"),k=!1;j&&(k=a(document.getElementById(j)).attr("data-value")),f.children("option").each(function(b,c){a(c).prop("selected")&&h.push({label:a(c).html(),value:a(c).attr("value")})});var l=a.extend({items:h},b,c);d.render("core/form_autocomplete_selection",l).done(function(b){i.empty().append(a(b).html()),k!==!1&&i.children("[aria-selected=true]").each(function(b,d){a(d).attr("data-value")===k&&g(b,c)})}).fail(e.exception),f.change()},i=function(b,c,d,e){var f=a(d).attr("data-value");b.multiple&&e.children("option").each(function(b,c){a(c).attr("value")==f&&(a(c).prop("selected",!1),a(c).attr("data-iscustom")&&a(c).remove())}),h(b,c,e)},j=function(b,c){var d=a(document.getElementById(c.inputId)),e=a(document.getElementById(c.suggestionsId)),f=e.children("[aria-hidden=false]").length;for(b%=f;0>b;)b+=f;var g=a(e.children("[aria-hidden=false]").get(b)),h=a(e.children("[role=option]")).index(g),i=c.suggestionsId+"-"+h;e.children().attr("aria-selected",!1).attr("id",""),g.attr("aria-selected",!0).attr("id",i),d.attr("aria-activedescendant",i);var j=g.offset().top-e.offset().top+e.scrollTop()-e.height()/2;e.animate({scrollTop:j},100)},k=function(b){var c=a(document.getElementById(b.suggestionsId)),d=c.children("[aria-selected=true]"),e=c.children("[aria-hidden=false]").index(d);j(e+1,b)},l=function(b){var c=a(document.getElementById(b.selectionId)),d=c.children("[data-active-selection=true]");if(!d)return void g(0,b);var e=c.children("[aria-selected=true]").index(d);g(e-1,b)},m=function(b){var c=a(document.getElementById(b.selectionId)),d=c.children("[data-active-selection=true]");if(!d)return void g(0,b);var e=c.children("[aria-selected=true]").index(d);g(e+1,b)},n=function(b){var c=a(document.getElementById(b.suggestionsId)),d=c.children("[aria-selected=true]"),e=c.children("[aria-hidden=false]").index(d);j(e-1,b)},o=function(b){var c=a(document.getElementById(b.inputId)),d=a(document.getElementById(b.suggestionsId));c.attr("aria-expanded",!1).attr("aria-activedescendant",b.selectionId),d.hide().attr("aria-hidden",!0)},p=function(b,f,g,h){var i=a(document.getElementById(f.inputId)),k=a(document.getElementById(f.suggestionsId)),l=!1,m=[];h.children("option").each(function(b,c){a(c).prop("selected")!==!0&&(m[m.length]={label:c.innerHTML,value:a(c).attr("value")})});var n=f.caseSensitive?g:g.toLocaleLowerCase(),o=a.extend({options:m},b,f);d.render("core/form_autocomplete_suggestions",o).done(function(d){k.replaceWith(d),k=a(document.getElementById(f.suggestionsId)),k.show().attr("aria-hidden",!1),k.children().each(function(c,d){d=a(d),b.caseSensitive&&d.text().indexOf(n)>-1||!b.caseSensitive&&d.text().toLocaleLowerCase().indexOf(n)>-1?(d.show().attr("aria-hidden",!1),l=!0):d.hide().attr("aria-hidden",!0)}),i.attr("aria-expanded",!0),l?b.tags||j(0,f):c.get_string("nosuggestions","form").done(function(a){k.html(a)})}).fail(e.exception)},q=function(b,c,d){var e=a(document.getElementById(c.inputId)),f=e.val(),g=f.split(","),i=!1;a.each(g,function(c,e){if(e=e.trim(),""!==e&&(b.multiple||d.children("option").prop("selected",!1),d.children("option").each(function(b,c){a(c).attr("value")==e&&(i=!0,a(c).prop("selected",!0))}),!i)){var f=a("<option>");f.append(e),f.attr("value",e),d.append(f),f.prop("selected",!0),f.attr("data-iscustom",!0)}}),h(b,c,d),e.val(""),o(c)},r=function(b,c,d){var e=a(document.getElementById(c.inputId)),f=a(document.getElementById(c.suggestionsId)),g=f.children("[aria-selected=true]").attr("data-value");b.multiple||d.children("option").prop("selected",!1),d.children("option").each(function(b,c){a(c).attr("value")==g&&a(c).prop("selected",!0)}),h(b,c,d),e.val(""),o(c)},s=function(b,c,d,f,g){var h=a(b.currentTarget).val();g.transport(c.selector,h,function(b){var e=g.processResults(c.selector,b),h=[];if(f.children("option").each(function(b,c){c=a(c),c.prop("selected")?h.push(String(c.attr("value"))):c.remove()}),!c.multiple&&0===f.children("option").length){var i=a("<option>");f.append(i)}a.each(e,function(b,c){if(-1===h.indexOf(String(c.value))){var d=a("<option>");d.append(c.label),d.attr("value",c.value),f.append(d)}}),p(c,d,"",f)},e.exception)},t=function(b,c,d){var e=a(document.getElementById(c.inputId));if(e.on("keydown",function(g){switch(g.keyCode){case f.DOWN:return b.showSuggestions?("true"===e.attr("aria-expanded")?k(c):!e.val()&&b.ajax?require([b.ajax],function(a){s(g,b,c,d,a)}):p(b,c,e.val(),d),g.preventDefault(),!1):!0;case f.COMMA:return b.tags&&q(b,c,d),g.preventDefault(),!1;case f.UP:return n(c),g.preventDefault(),!1;case f.ENTER:var h=a(document.getElementById(c.suggestionsId));return"true"===e.attr("aria-expanded")&&h.children("[aria-selected=true]").length>0?r(b,c,d):b.tags&&q(b,c,d),g.preventDefault(),!1;case f.ESCAPE:return"true"===e.attr("aria-expanded")&&o(c),g.preventDefault(),!1}return!0}),e.on("behat:set-value",function(){var f=a(document.getElementById(c.suggestionsId));"true"===e.attr("aria-expanded")&&f.children("[aria-selected=true]").length>0?r(b,c,d):b.tags&&q(b,c,d)}),e.on("blur",function(){window.setTimeout(function(){var f=a(document.activeElement);f.attr("id")!=e.attr("id")&&(b.tags&&q(b,c,d),o(c))},500)}),b.showSuggestions){var g=a(document.getElementById(c.downArrowId));g.on("click",function(){e.focus(),p(b,c,e.val(),d)})}var h=a(document.getElementById(c.suggestionsId));h.parent().on("click","[role=option]",function(e){var f=a(e.currentTarget).closest("[role=option]"),g=a(document.getElementById(c.suggestionsId)),h=g.children("[aria-hidden=false]").index(f);j(h,c),r(b,c,d)});var t=a(document.getElementById(c.selectionId));t.on("click","[role=listitem]",function(e){var f=a(e.currentTarget);i(b,c,f,d)}),t.on("keydown",function(e){switch(e.keyCode){case f.DOWN:return m(c),e.preventDefault(),!1;case f.UP:return l(c),e.preventDefault(),!1;case f.SPACE:case f.ENTER:var g=a(document.getElementById(c.selectionId)).children("[data-active-selection=true]");return g&&(i(b,c,g,d),e.preventDefault()),!1}return!0}),b.showSuggestions&&e.on("input",function(e){var f=a(e.currentTarget).val(),g=a(e.currentTarget).data("last-value");g!==f&&p(b,c,f,d),a(e.currentTarget).data("last-value",f)})};return{enhance:function(c,e,f,g,i,j){var k={selector:c,tags:!1,ajax:!1,placeholder:g,caseSensitive:!1,showSuggestions:!0};"undefined"!=typeof e&&(k.tags=e),"undefined"!=typeof f&&(k.ajax=f),"undefined"!=typeof i&&(k.caseSensitive=i),"undefined"!=typeof j&&(k.showSuggestions=j);var l=a(c);if(!l)return b.debug("Selector not found: "+c),!1;l.hide().attr("aria-hidden",!0);var m={selectId:l.attr("id"),inputId:"form_autocomplete_input-"+a.now(),suggestionsId:"form_autocomplete_suggestions-"+a.now(),selectionId:"form_autocomplete_selection-"+a.now(),downArrowId:"form_autocomplete_downarrow-"+a.now()};k.multiple=l.attr("multiple");var n=a("[for="+m.selectId+"]"),o=[];l.children("option").each(function(b,c){o[b]={label:c.innerHTML,value:a(c).attr("value")}});var p=a.extend({},k,m);p.options=o,p.items=[];var q=d.render("core/form_autocomplete_input",p),r=d.render("core/form_autocomplete_suggestions",p),u=d.render("core/form_autocomplete_selection",p);a.when(q,r,u).done(function(b,c,d){l.after(c),l.after(b),l.after(d),n.attr("for",m.inputId),t(k,m,l);var e=a(document.getElementById(m.inputId)),f=a(document.getElementById(m.suggestionsId));f.hide().attr("aria-hidden",!0),k.ajax&&require([k.ajax],function(b){var c=null,d=function(a){s(a,k,m,l,b)},f=function(a){null!==c&&(window.clearTimeout(c),c=null),c=window.setTimeout(d.bind(this,a),300)};e.on("input keypress",f);var g=a(document.getElementById(m.downArrowId));g.on("click",d)}),h(k,m,l)})}}});
\ No newline at end of file
+define(["jquery","core/log","core/str","core/templates","core/notification"],function(a,b,c,d,e){var f={DOWN:40,ENTER:13,SPACE:32,ESCAPE:27,COMMA:188,UP:38},g=function(b,c){var d=a(document.getElementById(c.selectionId)),e=d.children("[aria-selected=true]").length;for(b%=e;0>b;)b+=e;var f=a(d.children("[aria-selected=true]").get(b)),g=c.selectionId+"-"+b;d.children().attr("data-active-selection",!1).attr("id",""),f.attr("data-active-selection",!0).attr("id",g),d.attr("aria-activedescendant",g)},h=function(b,c,f){var h=[],i=a(document.getElementById(c.selectionId)),j=i.attr("aria-activedescendant"),k=!1;j&&(k=a(document.getElementById(j)).attr("data-value")),f.children("option").each(function(b,c){a(c).prop("selected")&&h.push({label:a(c).html(),value:a(c).attr("value")})});var l=a.extend({items:h},b,c);d.render("core/form_autocomplete_selection",l).done(function(b){i.empty().append(a(b).html()),k!==!1&&i.children("[aria-selected=true]").each(function(b,d){a(d).attr("data-value")===k&&g(b,c)})}).fail(e.exception),f.change()},i=function(b,c,d,e){var f=a(d).attr("data-value");b.multiple&&e.children("option").each(function(b,c){a(c).attr("value")==f&&(a(c).prop("selected",!1),a(c).attr("data-iscustom")&&a(c).remove())}),h(b,c,e)},j=function(b,c){var d=a(document.getElementById(c.inputId)),e=a(document.getElementById(c.suggestionsId)),f=e.children("[aria-hidden=false]").length;for(b%=f;0>b;)b+=f;var g=a(e.children("[aria-hidden=false]").get(b)),h=a(e.children("[role=option]")).index(g),i=c.suggestionsId+"-"+h;e.children().attr("aria-selected",!1).attr("id",""),g.attr("aria-selected",!0).attr("id",i),d.attr("aria-activedescendant",i);var j=g.offset().top-e.offset().top+e.scrollTop()-e.height()/2;e.animate({scrollTop:j},100)},k=function(b){var c=a(document.getElementById(b.suggestionsId)),d=c.children("[aria-selected=true]"),e=c.children("[aria-hidden=false]").index(d);j(e+1,b)},l=function(b){var c=a(document.getElementById(b.selectionId)),d=c.children("[data-active-selection=true]");if(!d)return void g(0,b);var e=c.children("[aria-selected=true]").index(d);g(e-1,b)},m=function(b){var c=a(document.getElementById(b.selectionId)),d=c.children("[data-active-selection=true]");if(!d)return void g(0,b);var e=c.children("[aria-selected=true]").index(d);g(e+1,b)},n=function(b){var c=a(document.getElementById(b.suggestionsId)),d=c.children("[aria-selected=true]"),e=c.children("[aria-hidden=false]").index(d);j(e-1,b)},o=function(b){var c=a(document.getElementById(b.inputId)),d=a(document.getElementById(b.suggestionsId));c.attr("aria-expanded",!1).attr("aria-activedescendant",b.selectionId),d.hide().attr("aria-hidden",!0)},p=function(b,f,g,h){var i=a(document.getElementById(f.inputId)),k=a(document.getElementById(f.suggestionsId)),l=!1,m=[];h.children("option").each(function(b,c){a(c).prop("selected")!==!0&&(m[m.length]={label:c.innerHTML,value:a(c).attr("value")})});var n=f.caseSensitive?g:g.toLocaleLowerCase(),o=a.extend({options:m},b,f);d.render("core/form_autocomplete_suggestions",o).done(function(d){k.replaceWith(d),k=a(document.getElementById(f.suggestionsId)),k.show().attr("aria-hidden",!1),k.children().each(function(c,d){d=a(d),b.caseSensitive&&d.text().indexOf(n)>-1||!b.caseSensitive&&d.text().toLocaleLowerCase().indexOf(n)>-1?(d.show().attr("aria-hidden",!1),l=!0):d.hide().attr("aria-hidden",!0)}),i.attr("aria-expanded",!0),l?b.tags||j(0,f):c.get_string("nosuggestions","form").done(function(a){k.html(a)})}).fail(e.exception)},q=function(b,c,d){var e=a(document.getElementById(c.inputId)),f=e.val(),g=f.split(","),i=!1;a.each(g,function(c,e){if(e=e.trim(),""!==e&&(b.multiple||d.children("option").prop("selected",!1),d.children("option").each(function(b,c){a(c).attr("value")==e&&(i=!0,a(c).prop("selected",!0))}),!i)){var f=a("<option>");f.append(e),f.attr("value",e),d.append(f),f.prop("selected",!0),f.attr("data-iscustom",!0)}}),h(b,c,d),e.val(""),o(c)},r=function(b,c,d){var e=a(document.getElementById(c.inputId)),f=a(document.getElementById(c.suggestionsId)),g=f.children("[aria-selected=true]").attr("data-value");b.multiple||d.children("option").prop("selected",!1),d.children("option").each(function(b,c){a(c).attr("value")==g&&a(c).prop("selected",!0)}),h(b,c,d),e.val(""),o(c)},s=function(b,c,d,f,g){var h=a(b.currentTarget).val();g.transport(c.selector,h,function(b){var e=g.processResults(c.selector,b),h=[];if(f.children("option").each(function(b,c){c=a(c),c.prop("selected")?h.push(String(c.attr("value"))):c.remove()}),!c.multiple&&0===f.children("option").length){var i=a("<option>");f.append(i)}a.each(e,function(b,c){if(-1===h.indexOf(String(c.value))){var d=a("<option>");d.append(c.label),d.attr("value",c.value),f.append(d)}}),p(c,d,"",f)},e.exception)},t=function(b,c,d){var e=a(document.getElementById(c.inputId));if(e.on("keydown",function(g){switch(g.keyCode){case f.DOWN:return b.showSuggestions?("true"===e.attr("aria-expanded")?k(c):!e.val()&&b.ajax?require([b.ajax],function(a){s(g,b,c,d,a)}):p(b,c,e.val(),d),g.preventDefault(),!1):!0;case f.COMMA:return b.tags&&q(b,c,d),g.preventDefault(),!1;case f.UP:return n(c),g.preventDefault(),!1;case f.ENTER:var h=a(document.getElementById(c.suggestionsId));return"true"===e.attr("aria-expanded")&&h.children("[aria-selected=true]").length>0?r(b,c,d):b.tags&&q(b,c,d),g.preventDefault(),!1;case f.ESCAPE:return"true"===e.attr("aria-expanded")&&o(c),g.preventDefault(),!1}return!0}),e.on("behat:set-value",function(){var f=a(document.getElementById(c.suggestionsId));"true"===e.attr("aria-expanded")&&f.children("[aria-selected=true]").length>0?r(b,c,d):b.tags&&q(b,c,d)}),e.on("blur",function(){window.setTimeout(function(){var f=a(document.activeElement);f.attr("id")!=e.attr("id")&&(b.tags&&q(b,c,d),o(c))},500)}),b.showSuggestions){var g=a(document.getElementById(c.downArrowId));g.on("click",function(){e.focus(),p(b,c,e.val(),d)})}var h=a(document.getElementById(c.suggestionsId));h.parent().on("click","[role=option]",function(e){var f=a(e.currentTarget).closest("[role=option]"),g=a(document.getElementById(c.suggestionsId)),h=g.children("[aria-hidden=false]").index(f);j(h,c),r(b,c,d)});var t=a(document.getElementById(c.selectionId));t.on("click","[role=listitem]",function(e){var f=a(e.currentTarget);i(b,c,f,d)}),t.on("keydown",function(e){switch(e.keyCode){case f.DOWN:return m(c),e.preventDefault(),!1;case f.UP:return l(c),e.preventDefault(),!1;case f.SPACE:case f.ENTER:var g=a(document.getElementById(c.selectionId)).children("[data-active-selection=true]");return g&&(i(b,c,g,d),e.preventDefault()),!1}return!0}),b.showSuggestions&&e.on("input",function(e){var f=a(e.currentTarget).val(),g=a(e.currentTarget).data("last-value");g!==f&&p(b,c,f,d),a(e.currentTarget).data("last-value",f)})};return{enhance:function(c,e,f,g,i,j){var k={selector:c,tags:!1,ajax:!1,placeholder:g,caseSensitive:!1,showSuggestions:!0};"undefined"!=typeof e&&(k.tags=e),"undefined"!=typeof f&&(k.ajax=f),"undefined"!=typeof i&&(k.caseSensitive=i),"undefined"!=typeof j&&(k.showSuggestions=j);var l=a(c);if(!l)return b.debug("Selector not found: "+c),!1;l.hide().attr("aria-hidden",!0);var m={selectId:l.attr("id"),inputId:"form_autocomplete_input-"+a.now(),suggestionsId:"form_autocomplete_suggestions-"+a.now(),selectionId:"form_autocomplete_selection-"+a.now(),downArrowId:"form_autocomplete_downarrow-"+a.now()};k.multiple=l.attr("multiple");var n=a("[for="+m.selectId+"]"),o=[];l.children("option").each(function(b,c){o[b]={label:c.innerHTML,value:a(c).attr("value")}});var p=a.extend({},k,m);p.options=o,p.items=[];var q=d.render("core/form_autocomplete_input",p),r=d.render("core/form_autocomplete_suggestions",p),u=d.render("core/form_autocomplete_selection",p);a.when(q,r,u).done(function(b,c,d){l.after(c),l.after(b),l.after(d),n.attr("for",m.inputId),t(k,m,l);var e=a(document.getElementById(m.inputId)),f=a(document.getElementById(m.suggestionsId));f.hide().attr("aria-hidden",!0),k.ajax&&require([k.ajax],function(b){var c=null,d=function(a){s(a,k,m,l,b)},f=function(a){null!==c&&(window.clearTimeout(c),c=null),c=window.setTimeout(d.bind(this,a),300)};e.on("input",f);var g=a(document.getElementById(m.downArrowId));g.on("click",d)}),h(k,m,l)})}}});
\ No newline at end of file
diff --git a/lib/amd/build/tooltip.min.js b/lib/amd/build/tooltip.min.js
new file mode 100644
index 00000000000..b29a52a8473
--- /dev/null
+++ b/lib/amd/build/tooltip.min.js
@@ -0,0 +1 @@
+define(["jquery"],function(a){var b=function(b){this._regionSelector=b,a(this._regionSelector).each(function(b,c){var d=a(c).attr("aria-describedby");if(d){var e=document.getElementById(d);if(e){var f="tooltip"==a(e).attr("role");f&&(a(e).hide(),a(c).attr("tabindex","0")),a(c).on("focus",this._handleFocus.bind(this)),a(c).on("mouseover",this._handleMouseOver.bind(this)),a(c).on("mouseout",this._handleMouseOut.bind(this)),a(c).on("blur",this._handleBlur.bind(this)),a(c).on("keydown",this._handleKeyDown.bind(this))}}}.bind(this))};return b.prototype._regionSelector=null,b.prototype._showTooltip=function(b){var c=a(b.target),d=c.attr("aria-describedby");if(d){var e=a(document.getElementById(d));if(e.show(),e.attr("aria-hidden","false"),!e.is(".tooltip")){var f=a('<div class="tooltip-inner"></div>');f.append(e.contents()),e.append(f),e.addClass("tooltip"),e.addClass("bottom"),e.append('<div class="tooltip-arrow"></div>')}var g=c.offset();g.top+=c.height()+10,a(e).offset(g)}},b.prototype._hideTooltip=function(b){var c=a(b.target),d=c.attr("aria-describedby");if(d){var e=document.getElementById(d);a(e).hide(),a(e).attr("aria-hidden","true")}},b.prototype._handleFocus=function(a){this._showTooltip(a)},b.prototype._handleKeyDown=function(a){27==a.which&&this._hideTooltip(a)},b.prototype._handleMouseOver=function(a){this._showTooltip(a)},b.prototype._handleMouseOut=function(b){var c=a(b.target);c.is(":focus")||this._hideTooltip(b)},b.prototype._handleBlur=function(a){this._hideTooltip(a)},b});
\ No newline at end of file
diff --git a/lib/amd/src/form-autocomplete.js b/lib/amd/src/form-autocomplete.js
index 474708e6d11..038b6e3b4cc 100644
--- a/lib/amd/src/form-autocomplete.js
+++ b/lib/amd/src/form-autocomplete.js
@@ -775,8 +775,7 @@ define(['jquery', 'core/log', 'core/str', 'core/templates', 'core/notification']
                             throttleTimeout = window.setTimeout(handler.bind(this, e), 300);
                         };
                         // Trigger an ajax update after the text field value changes.
-                        inputElement.on("input keypress", throttledHandler);
-
+                        inputElement.on("input", throttledHandler);
                         var arrowElement = $(document.getElementById(state.downArrowId));
                         arrowElement.on("click", handler);
                     });
diff --git a/lib/amd/src/tooltip.js b/lib/amd/src/tooltip.js
new file mode 100644
index 00000000000..7faaf956b1f
--- /dev/null
+++ b/lib/amd/src/tooltip.js
@@ -0,0 +1,133 @@
+define(['jquery'], function($) {
+
+    /**
+     * Tooltip class.
+     *
+     * @param {String} selector The css selector for the node(s) to enhance with tooltips.
+     */
+    var Tooltip = function(selector) {
+        // Tooltip code matches: http://www.w3.org/WAI/PF/aria-practices/#tooltip
+        this._regionSelector = selector;
+
+        // For each node matching the selector - find an aria-describedby attribute pointing to an role="tooltip" element.
+
+        $(this._regionSelector).each(function(index, element) {
+            var tooltipId = $(element).attr('aria-describedby');
+            if (tooltipId) {
+                var tooltipele = document.getElementById(tooltipId);
+                if (tooltipele) {
+                    var correctRole = $(tooltipele).attr('role') == 'tooltip';
+
+                    if (correctRole) {
+                        $(tooltipele).hide();
+                        // Ensure the trigger for the tooltip is keyboard focusable.
+                        $(element).attr('tabindex', '0');
+                    }
+
+                    // Attach listeners.
+                    $(element).on('focus', this._handleFocus.bind(this));
+                    $(element).on('mouseover', this._handleMouseOver.bind(this));
+                    $(element).on('mouseout', this._handleMouseOut.bind(this));
+                    $(element).on('blur', this._handleBlur.bind(this));
+                    $(element).on('keydown', this._handleKeyDown.bind(this));
+                }
+            }
+        }.bind(this));
+    };
+
+    /** @type {String} Selector for the page region containing the user navigation. */
+    Tooltip.prototype._regionSelector = null;
+
+    /**
+     * Find the tooltip referred to by this element and show it.
+     *
+     * @param {Event} e
+     */
+    Tooltip.prototype._showTooltip = function(e) {
+        var triggerElement = $(e.target);
+        var tooltipId = triggerElement.attr('aria-describedby');
+        if (tooltipId) {
+            var tooltipele = $(document.getElementById(tooltipId));
+
+            tooltipele.show();
+            tooltipele.attr('aria-hidden', 'false');
+
+            if (!tooltipele.is('.tooltip')) {
+                // Change the markup to a bootstrap tooltip.
+                var inner = $('<div class="tooltip-inner"></div>');
+                inner.append(tooltipele.contents());
+                tooltipele.append(inner);
+                tooltipele.addClass('tooltip');
+                tooltipele.addClass('bottom');
+                tooltipele.append('<div class="tooltip-arrow"></div>');
+            }
+            var pos = triggerElement.offset();
+            pos.top += triggerElement.height() + 10;
+            $(tooltipele).offset(pos);
+        }
+    };
+
+    /**
+     * Find the tooltip referred to by this element and hide it.
+     *
+     * @param {Event} e
+     */
+    Tooltip.prototype._hideTooltip = function(e) {
+        var triggerElement = $(e.target);
+        var tooltipId = triggerElement.attr('aria-describedby');
+        if (tooltipId) {
+            var tooltipele = document.getElementById(tooltipId);
+
+            $(tooltipele).hide();
+            $(tooltipele).attr('aria-hidden', 'true');
+        }
+    };
+
+    /**
+     * Listener for focus events.
+     * @param {Event} e
+     */
+    Tooltip.prototype._handleFocus = function(e) {
+        this._showTooltip(e);
+    };
+
+    /**
+     * Listener for keydown events.
+     * @param {Event} e
+     */
+    Tooltip.prototype._handleKeyDown = function(e) {
+        if (e.which == 27) {
+            this._hideTooltip(e);
+        }
+    };
+
+    /**
+     * Listener for mouseover events.
+     * @param {Event} e
+     */
+    Tooltip.prototype._handleMouseOver = function(e) {
+        this._showTooltip(e);
+    };
+
+    /**
+     * Listener for mouseout events.
+     * @param {Event} e
+     */
+    Tooltip.prototype._handleMouseOut = function(e) {
+        var triggerElement = $(e.target);
+
+        if (!triggerElement.is(":focus")) {
+            this._hideTooltip(e);
+        }
+    };
+
+    /**
+     * Listener for blur events.
+     * @param {Event} e
+     */
+    Tooltip.prototype._handleBlur = function(e) {
+        this._hideTooltip(e);
+    };
+
+    return Tooltip;
+});
diff --git a/lib/db/services.php b/lib/db/services.php
index fcba61030e9..e88d709b517 100644
--- a/lib/db/services.php
+++ b/lib/db/services.php
@@ -428,6 +428,7 @@ $functions = array(
         'classpath'   => 'user/externallib.php',
         'description' => 'Retrieve users information for a specified unique field - If you want to do a user search, use core_user_get_users()',
         'type'        => 'read',
+        'ajax'        => true,
         'capabilities'=> 'moodle/user:viewdetails, moodle/user:viewhiddendetails, moodle/course:useremail, moodle/user:update',
     ),
 
diff --git a/lib/filestorage/file_storage.php b/lib/filestorage/file_storage.php
index 6034798e99a..d62be782219 100644
--- a/lib/filestorage/file_storage.php
+++ b/lib/filestorage/file_storage.php
@@ -53,6 +53,9 @@ class file_storage {
     private $dirpermissions;
     /** @var int Permissions for new files */
     private $filepermissions;
+    /** @var array List of formats supported by unoconv */
+    private $unoconvformats;
+
 
     /**
      * Constructor - do not use directly use {@link get_file_storage()} call instead.
@@ -206,7 +209,7 @@ class file_storage {
             $this->unoconvformats = array_unique($this->unoconvformats);
         }
 
-        $sanitized = trim(strtolower($format));
+        $sanitized = trim(core_text::strtolower($format));
         return in_array($sanitized, $this->unoconvformats);
     }
 
@@ -226,7 +229,7 @@ class file_storage {
             return false;
         }
 
-        $fileextension = strtolower(pathinfo($file->get_filename(), PATHINFO_EXTENSION));
+        $fileextension = core_text::strtolower(pathinfo($file->get_filename(), PATHINFO_EXTENSION));
         if (!self::is_format_supported_by_unoconv($fileextension)) {
             return false;
         }
@@ -260,7 +263,6 @@ class file_storage {
         $output = null;
         $currentdir = getcwd();
         chdir($tmp);
-        $result = exec('env 1>&2', $output);
         $result = exec($cmd, $output);
         chdir($currentdir);
         if (!file_exists($newtmpfile)) {
diff --git a/lib/formslib.php b/lib/formslib.php
index 483db6ea107..2c16fd225e9 100644
--- a/lib/formslib.php
+++ b/lib/formslib.php
@@ -278,7 +278,7 @@ abstract class moodleform {
      */
     function _process_submission($method) {
         $submission = array();
-        if (!empty($this->_ajaxformdata) && defined('AJAX_SCRIPT')) {
+        if (!empty($this->_ajaxformdata)) {
             $submission = $this->_ajaxformdata;
         } else if ($method == 'post') {
             if (!empty($_POST)) {
diff --git a/lib/upgrade.txt b/lib/upgrade.txt
index df524579710..857e4d396e8 100644
--- a/lib/upgrade.txt
+++ b/lib/upgrade.txt
@@ -42,7 +42,10 @@ information provided here is intended especially for developers.
     - upgrade_course_modules_sequences()
     - upgrade_grade_item_fix_sortorder()
     - upgrade_availability_item()
-
+* A new parameter $ajaxformdata was added to the constructor for moodleform. When building a
+  moodleform in a webservice or ajax script (for example using the new fragments API) we
+  cannot allow the moodleform to parse it's own data from _GET and _POST - we must pass it as
+  an array.
 * Plugins can extend the navigation for user by declaring the following callback:
   <frankenstyle>_extend_navigation_user(navigation_node $parentnode, stdClass $user,
                                         context_user $context, stdClass $course,
diff --git a/mod/assign/amd/build/grading_actions.min.js b/mod/assign/amd/build/grading_actions.min.js
new file mode 100644
index 00000000000..a68cc232e3f
--- /dev/null
+++ b/mod/assign/amd/build/grading_actions.min.js
@@ -0,0 +1 @@
+define(["jquery"],function(a){var b=function(b){this._regionSelector=b,this._region=a(b),a(document).on("user-changed",this._showActionsForm.bind(this)),this._region.find('[name="savechanges"]').on("click",this._trigger.bind(this,"save-changes")),this._region.find('[name="resetbutton"]').on("click",this._trigger.bind(this,"reset")),this._region.find("form").on("submit",function(a){a.preventDefault()})};return b.prototype._regionSelector=null,b.prototype._lastUserId=0,b.prototype._region=null,b.prototype._showActionsForm=function(a,b){var c=this._region.find("[data-region=grading-actions-form]");b!=this._lastUserId&&b>0&&(this._lastUserId=b),b>0?c.removeClass("hide"):c.addClass("hide")},b.prototype._trigger=function(b){a(document).trigger(b)},b});
\ No newline at end of file
diff --git a/mod/assign/amd/build/grading_form_change_checker.min.js b/mod/assign/amd/build/grading_form_change_checker.min.js
new file mode 100644
index 00000000000..e9828dc7922
--- /dev/null
+++ b/mod/assign/amd/build/grading_form_change_checker.min.js
@@ -0,0 +1 @@
+define(["jquery"],function(a){return{saveFormState:function(b){a(b).trigger("save-form-state");var c=a(b).serialize();a(b).data("saved-form-state",c)},checkFormForChanges:function(b){a(b).trigger("save-form-state");var c=a(b).serialize(),d=a(b).data("saved-form-state");return"undefined"==typeof d?!1:d!=c}}});
\ No newline at end of file
diff --git a/mod/assign/amd/build/grading_navigation.min.js b/mod/assign/amd/build/grading_navigation.min.js
new file mode 100644
index 00000000000..f14a5af8432
--- /dev/null
+++ b/mod/assign/amd/build/grading_navigation.min.js
@@ -0,0 +1 @@
+define(["jquery","core/notification","core/str","core/form-autocomplete","core/ajax","mod_assign/grading_form_change_checker"],function(a,b,c,d,e,f){var g=function(e){this._regionSelector=e,this._region=a(e),this._filters=[],this._users=[],this._filteredUsers=[],this._loadAllUsers(),this._region.find('[data-action="previous-user"]').on("click",this._handlePreviousUser.bind(this)),this._region.find('[data-action="next-user"]').on("click",this._handleNextUser.bind(this)),this._region.find('[data-action="change-user"]').on("change",this._handleChangeUser.bind(this)),this._region.find('[data-region="user-filters"]').on("click",this._toggleExpandFilters.bind(this)),a(document).on("user-changed",this._refreshSelector.bind(this));var f=this._region.find('[data-region="user-filters"]'),g=a(document.getElementById(f.attr("aria-controls")));g.on("change",'[type="checkbox"]',this._filterChanged.bind(this));var h=a('[data-region="grading-navigation-panel"]').data("first-userid");h&&this._selectUserById(h),c.get_string("changeuser","mod_assign").done(function(a){d.enhance("[data-action=change-user]",!1,"mod_assign/participant_selector",a)}.bind(this)).fail(b.exception),a(document).bind("start-loading-user",function(){this._isLoading=!0}.bind(this)),a(document).bind("finish-loading-user",function(){this._isLoading=!1}.bind(this))};return g.prototype._isLoading=!1,g.prototype._regionSelector=null,g.prototype._filters=null,g.prototype._users=null,g.prototype._region=null,g.prototype._loadAllUsers=function(){var a=this._region.find("[data-action=change-user]"),c=a.attr("data-assignmentid"),d=a.attr("data-groupid");e.call([{methodname:"mod_assign_list_participants",args:{assignid:c,groupid:d,filter:"",onlyids:!0},done:this._usersLoaded.bind(this),fail:b.exception}])},g.prototype._usersLoaded=function(b){if(this._filteredUsers=this._users=b,this._users.length){var c=this._region.find('[data-region="user-filters"]'),d=a(document.getElementById(c.attr("aria-controls")));d.find('[type="checkbox"]').trigger("change")}else this._selectNoUser()},g.prototype._checkClickOutsideConfigureFilters=function(b){var c=this._region.find('[data-region="configure-filters"]');if(!c.is(b.target)&&0===c.has(b.target).length){var d=this._region.find('[data-region="user-filters"]');c.hide(),c.attr("aria-hidden","true"),d.attr("aria-expanded","false"),a(document).unbind("click.mod_assign_grading_navigation")}},g.prototype._filterChanged=function(d){var e=a(d.target).attr("name"),f=e.split("_").pop(),g=a(d.target).prop("checked");if(g)-1==this._filters.indexOf(f)&&(this._filters[this._filters.length]=f);else{var h=this._filters.indexOf(f);-1!=h&&this._filters.splice(h,1)}var i=[];this._region.find('[data-region="configure-filters"]').find('[type="checkbox"]').each(function(b,c){a(c).prop("checked")&&(i[i.length]=a(c).closest("label").text())}.bind(this)),i.length?this._region.find('[data-region="user-filters"] span').text(i.join(", ")):c.get_string("nofilters","mod_assign").done(function(a){this._region.find('[data-region="user-filters"] span').text(a)}.bind(this)).fail(b.exception);var j=this._region.find("[data-action=change-user]"),k=j.attr("data-selected"),l=0;this._filteredUsers=[],a.each(this._users,function(b,c){var d=!0;a.each(this._filters,function(a,b){"submitted"==b?"0"==c.submitted&&(d=!1):"notsubmitted"==b?"1"==c.submitted&&(d=!1):"requiregrading"==b&&"0"==c.requiregrading&&(d=!1)}.bind(this)),d&&(this._filteredUsers[this._filteredUsers.length]=c,k==c.id&&(l=b))}.bind(this)),this._filteredUsers.length?this._selectUserById(this._filteredUsers[l].id):this._selectNoUser()},g.prototype._selectNoUser=function(){this._isLoading||(f.checkFormForChanges('[data-region="grade-panel"] .gradeform')?c.get_strings([{key:"unsavedchanges",component:"mod_assign"},{key:"unsavedchangesquestion",component:"mod_assign"},{key:"saveandcontinue",component:"mod_assign"},{key:"cancel",component:"core"}]).done(function(c){b.confirm(c[0],c[1],c[2],c[3],function(){a(document).trigger("save-changes",-1)})}.bind(this)):a(document).trigger("user-changed",-1))},g.prototype._selectUserById=function(d){var e=this._region.find("[data-action=change-user]"),g=parseInt(d,10);this._isLoading||(f.checkFormForChanges('[data-region="grade-panel"] .gradeform')?c.get_strings([{key:"unsavedchanges",component:"mod_assign"},{key:"unsavedchangesquestion",component:"mod_assign"},{key:"saveandcontinue",component:"mod_assign"},{key:"cancel",component:"core"}]).done(function(c){b.confirm(c[0],c[1],c[2],c[3],function(){a(document).trigger("save-changes",g)})}.bind(this)):(e.attr("data-selected",d),!isNaN(g)&&g>0&&a(document).trigger("user-changed",d)))},g.prototype._toggleExpandFilters=function(b){b.preventDefault();var c=a(b.target).closest('[data-region="user-filters"]'),d="true"==c.attr("aria-expanded"),e=a(document.getElementById(c.attr("aria-controls")));d?(e.hide(),e.attr("aria-hidden","true"),c.attr("aria-expanded","false"),a(document).unbind("click.mod_assign_grading_navigation")):(e.css("display","inline-block"),e.attr("aria-hidden","false"),c.attr("aria-expanded","true"),b.stopPropagation(),a(document).on("click.mod_assign_grading_navigation",this._checkClickOutsideConfigureFilters.bind(this)))},g.prototype._handlePreviousUser=function(a){a.preventDefault();var b=this._region.find("[data-action=change-user]"),c=b.attr("data-selected"),d=0,e=0;for(d=0;d<this._filteredUsers.length;d++)if(this._filteredUsers[d].id==c){e=d;break}var f=this._filteredUsers.length,g=e-1;0>g&&(g=f-1),f&&this._selectUserById(this._filteredUsers[g].id)},g.prototype._handleNextUser=function(a){a.preventDefault();var b=this._region.find("[data-action=change-user]"),c=b.attr("data-selected"),d=0,e=0;for(d=0;d<this._filteredUsers.length;d++)if(this._filteredUsers[d].id==c){e=d;break}var f=this._filteredUsers.length,g=(e+1)%f;f&&this._selectUserById(this._filteredUsers[g].id)},g.prototype._refreshCount=function(){var a=this._region.find("[data-action=change-user]"),d=a.attr("data-selected"),e=0,f=0;if(isNaN(d)||0>=d)this._region.find('[data-region="user-count"]').hide();else{for(this._region.find('[data-region="user-count"]').show(),e=0;e<this._filteredUsers.length;e++)if(this._filteredUsers[e].id==d){f=e;break}var g=this._filteredUsers.length;g&&(f+=1);var h={x:f,y:g};c.get_string("xofy","mod_assign",h).done(function(a){this._region.find('[data-region="user-count-summary"]').text(a)}.bind(this)).fail(b.exception)}},g.prototype._refreshSelector=function(a,b){var c=this._region.find("[data-action=change-user]");b=parseInt(b,10),!isNaN(b)&&b>0&&c.attr("data-selected",b),this._refreshCount()},g.prototype._handleChangeUser=function(){var d=this._region.find("[data-action=change-user]"),e=parseInt(d.val(),10);this._isLoading||(f.checkFormForChanges('[data-region="grade-panel"] .gradeform')?c.get_strings([{key:"unsavedchanges",component:"mod_assign"},{key:"unsavedchangesquestion",component:"mod_assign"},{key:"saveandcontinue",component:"mod_assign"},{key:"cancel",component:"core"}]).done(function(c){b.confirm(c[0],c[1],c[2],c[3],function(){a(document).trigger("save-changes",e)})}.bind(this)):!isNaN(e)&&e>0&&(d.attr("data-selected",e),a(document).trigger("user-changed",e)))},g});
\ No newline at end of file
diff --git a/mod/assign/amd/build/grading_navigation_user_info.min.js b/mod/assign/amd/build/grading_navigation_user_info.min.js
new file mode 100644
index 00000000000..5b5804a90e9
--- /dev/null
+++ b/mod/assign/amd/build/grading_navigation_user_info.min.js
@@ -0,0 +1 @@
+define(["jquery","core/notification","core/ajax","core/templates"],function(a,b,c,d){var e=function(b){this._regionSelector=b,this._region=a(b),this._userCache=[],a(document).on("user-changed",this._refreshUserInfo.bind(this))};return e.prototype._regionSelector=null,e.prototype._userCache=null,e.prototype._region=null,e.prototype._lastUserId=0,e.prototype._refreshUserInfo=function(e,f){var g=a.Deferred();this._lastUserId!=f&&(this._lastUserId=f,d.render("mod_assign/loading",{}).done(function(e,h){if(this._region.fadeOut("fast",function(){d.replaceNodeContents(this._region,e,h),this._region.fadeIn("fast")}.bind(this)),0>f)return void d.render("mod_assign/grading_navigation_no_users",{}).done(function(a,b){this._region.fadeOut("fast",function(){d.replaceNodeContents(this._region,a,b),this._region.fadeIn("fast")}.bind(this))}.bind(this)).fail(b.exception);if("undefined"!=typeof this._userCache[f])g.resolve(this._userCache[f]);else{var i=c.call([{methodname:"core_user_get_users_by_field",args:{field:"id",values:[f]}}]);i[0].done(function(b){b.length<1?g.reject("No users"):(a.each(b,function(a,b){this._userCache[b.id]=b}.bind(this)),g.resolve(this._userCache[f]))}.bind(this)).fail(b.exception)}g.done(function(c){var e=a("[data-showuseridentity]").data("showuseridentity").split(","),f=[];c.courseid=a('[data-region="grading-navigation-panel"]').attr("data-courseid"),a.each(e,function(a,b){"undefined"!=typeof c[b]&&""!==c[b]&&(c.hasidentity=!0,f.push(c[b]))}),c.identity=f.join(", "),d.render("mod_assign/grading_navigation_user_summary",c).done(function(a,b){this._region.fadeOut("fast",function(){d.replaceNodeContents(this._region,a,b),this._region.fadeIn("fast")}.bind(this))}.bind(this)).fail(b.exception)}.bind(this)).fail(function(){d.render("mod_assign/grading_navigation_no_users",{}).done(function(a,b){this._region.fadeOut("fast",function(){d.replaceNodeContents(this._region,a,b),this._region.fadeIn("fast")}.bind(this))}.bind(this)).fail(b.exception)})}.bind(this)).fail(b.exception))},e});
\ No newline at end of file
diff --git a/mod/assign/amd/build/grading_panel.min.js b/mod/assign/amd/build/grading_panel.min.js
new file mode 100644
index 00000000000..83022c463c7
--- /dev/null
+++ b/mod/assign/amd/build/grading_panel.min.js
@@ -0,0 +1 @@
+define(["jquery","core/notification","core/templates","core/fragment","core/ajax","core/str","mod_assign/grading_form_change_checker"],function(a,b,c,d,e,f,g){var h=function(b){this._regionSelector=b,this._region=a(b),this._userCache=[],a(document).on("user-changed",this._refreshGradingPanel.bind(this)),a(document).on("save-changes",this._submitForm.bind(this)),a(document).on("reset",this._resetForm.bind(this)),a(document).on("save-form-state",this._saveFormState.bind(this))};return h.prototype._regionSelector=null,h.prototype._lastUserId=0,h.prototype._lastAttemptNumber=-1,h.prototype._region=null,h.prototype._niceReplaceNodeContents=function(b,d,e){var f=a.Deferred();return b.fadeOut("fast",function(){c.replaceNodeContents(b,d,e),b.fadeIn("fast",function(){f.resolve()})}),f.promise()},h.prototype._saveFormState=function(){"undefined"!=typeof window.tinyMCE&&window.tinyMCE.triggerSave();var b=a('[data-region="grading-actions-form"] [name="sendstudentnotifications"]').val();a('.gradeform [name="sendstudentnotifications"]').val(b)},h.prototype._submitForm=function(c,d){var f=a(this._region.find("form.gradeform"));a('[data-region="overlay"]').show(),f.trigger("save-form-state");var g=f.serialize(),h=this._region.attr("data-assignmentid");e.call([{methodname:"mod_assign_submit_grading_form",args:{assignmentid:h,userid:this._lastUserId,jsonformdata:JSON.stringify(g)},done:this._handleFormSubmissionResponse.bind(this,g,d),fail:b.exception}])},h.prototype._handleFormSubmissionResponse=function(c,d,e){"undefined"==typeof d&&(d=this._lastUserId),e.length?a(document).trigger("reset",[this._lastUserId,c]):(f.get_strings([{key:"changessaved",component:"core"},{key:"gradechangessaveddetail",component:"mod_assign"}]).done(function(a){b.alert(a[0],a[1])}).fail(b.exception),d==this._lastUserId?a(document).trigger("reset",d):a(document).trigger("user-changed",d)),a('[data-region="overlay"]').hide()},h.prototype._resetForm=function(b,c,d){var e=a.Event("custom");"undefined"==typeof c&&(c=this._lastUserId),this._lastUserId=0,this._refreshGradingPanel(e,c,d)},h.prototype._chooseAttempt=function(c){var d=a(c.target),e=d.data("submissions"),g=a(document.getElementById(e)),h=g.clone(),i=h.wrap(a("<form/>")).html();f.get_strings([{key:"viewadifferentattempt",component:"mod_assign"},{key:"view",component:"core"},{key:"cancel",component:"core"}]).done(function(c){b.confirm(c[0],i,c[1],c[2],function(){var b=a("input:radio[name='select-attemptnumber']:checked").val();this._refreshGradingPanel(null,this._lastUserId,"",b)}.bind(this))}.bind(this)).fail(b.exception)},h.prototype._addPopoutButtons=function(d){var e=a(d);c.render("mod_assign/popout_button",{}).done(function(a){e.find(".fitem_ffilemanager .fitemtitle").append(a),e.find(".fitem_feditor .fitemtitle").append(a),e.find(".fitem_f .fitemtitle").append(a),e.on("click",'[data-region="popout-button"]',this._togglePopout.bind(this))}.bind(this)).fail(b.exception)},h.prototype._togglePopout=function(b){b.preventDefault();var c=a(b.target).closest(".fitem");c.hasClass("popout")?a(".popout").removeClass("popout"):(a(".popout").removeClass("popout"),c.addClass("popout"),c.addClass("moodle-has-zindex"))},h.prototype._refreshGradingPanel=function(e,f,h,i){var j=this._region.attr("data-contextid");"undefined"==typeof h&&(h=""),"undefined"==typeof i&&(i=-1),(this._lastUserId!=f||this._lastAttemptNumber!=i||""!==h)&&(this._lastUserId=f,this._lastAttemptNumber=i,a(document).trigger("start-loading-user"),window.M.util.js_pending("mod-assign-loading-user"),c.render("mod_assign/loading",{}).done(function(c,e){this._niceReplaceNodeContents(this._region,c,e).done(function(){if(f>0){this._region.show();var c={userid:f,attemptnumber:i,jsonformdata:JSON.stringify(h)};d.loadFragment("mod_assign","gradingpanel",j,c).done(function(c,d){this._niceReplaceNodeContents(this._region,c,d).done(function(){g.saveFormState('[data-region="grade-panel"] .gradeform'),a('[data-region="attempt-chooser"]').on("click",this._chooseAttempt.bind(this)),this._addPopoutButtons('[data-region="grade-panel"] .gradeform'),a(document).trigger("finish-loading-user"),window.M.util.js_complete("mod-assign-loading-user")}.bind(this)).fail(b.exception)}.bind(this)).fail(b.exception)}else{this._region.hide();var e=a('[data-region="review-panel"]');e.length&&this._niceReplaceNodeContents(e,"",""),a(document).trigger("finish-loading-user"),window.M.util.js_complete("mod-assign-loading-user")}}.bind(this))}.bind(this)).fail(b.exception))},h});
\ No newline at end of file
diff --git a/mod/assign/amd/build/grading_review_panel.min.js b/mod/assign/amd/build/grading_review_panel.min.js
new file mode 100644
index 00000000000..084992e7338
--- /dev/null
+++ b/mod/assign/amd/build/grading_review_panel.min.js
@@ -0,0 +1 @@
+define(["jquery"],function(a){var b=function(){this._region=a('[data-region="review-panel"]')};return b.prototype._region=null,b.prototype.getReviewPanel=function(a){var b=this._region.data("panel-owner");return"undefined"==typeof b&&this._region.data("review-panel-plugin",a),this._region.data("review-panel-plugin")==a?this._region[0]:!1},b});
\ No newline at end of file
diff --git a/mod/assign/amd/build/participant_selector.min.js b/mod/assign/amd/build/participant_selector.min.js
new file mode 100644
index 00000000000..f7f393b1767
--- /dev/null
+++ b/mod/assign/amd/build/participant_selector.min.js
@@ -0,0 +1 @@
+define(["core/ajax","jquery","core/templates"],function(a,b,c){return{processResults:function(a,b){var c=[],d=0;for(d=0;d<b.length;d++)c[d]={value:b[d].id,label:b[d].label};return c},transport:function(d,e,f,g){var h=b(d).attr("data-assignmentid"),i=b('[data-region="configure-filters"] input[type="checkbox"]'),j=[];i.each(function(a,c){j[b(c).attr("name")]=b(c).prop("checked")});var k=a.call([{methodname:"mod_assign_list_participants",args:{assignid:h,groupid:0,filter:e,limit:30}}]);k[0].then(function(a){var d=[],e=b("[data-showuseridentity]").data("showuseridentity").split(",");b.each(a,function(a,f){var g=f,h=[],i=!0;j.filter_submitted&&!f.submitted&&(i=!1),j.filter_notsubmitted&&f.submitted&&(i=!1),j.filter_requiregrading&&!f.requiregrading&&(i=!1),i&&(b.each(e,function(a,b){"undefined"!=typeof f[b]&&""!==f[b]&&(g.hasidentity=!0,h.push(f[b]))}),g.identity=h.join(", "),d.push(c.render("mod_assign/list_participant_user_summary",g)))}),b.when.apply(b.when,d).then(function(){var c=arguments,d=0;b.each(a,function(a,b){b.label=c[d],d++}),f(a)})},g)}}});
\ No newline at end of file
diff --git a/mod/assign/amd/src/grading_actions.js b/mod/assign/amd/src/grading_actions.js
new file mode 100644
index 00000000000..1373f22900d
--- /dev/null
+++ b/mod/assign/amd/src/grading_actions.js
@@ -0,0 +1,89 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Javascript controller for the "Actions" panel at the bottom of the page.
+ *
+ * @module     mod_assign/grading_actions
+ * @package    mod_assign
+ * @class      GradingActions
+ * @copyright  2016 Damyon Wiese <damyon@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @since      3.1
+ */
+define(['jquery'], function($) {
+
+    /**
+     * GradingActions class.
+     *
+     * @class GradingActions
+     * @param {String} selector The selector for the page region containing the actions panel.
+     */
+    var GradingActions = function(selector) {
+        this._regionSelector = selector;
+        this._region = $(selector);
+
+        $(document).on('user-changed', this._showActionsForm.bind(this));
+
+        this._region.find('[name="savechanges"]').on('click', this._trigger.bind(this, 'save-changes'));
+        this._region.find('[name="resetbutton"]').on('click', this._trigger.bind(this, 'reset'));
+        this._region.find('form').on('submit', function(e) { e.preventDefault(); });
+    };
+
+    /** @type {String} Selector for the page region containing the user navigation. */
+    GradingActions.prototype._regionSelector = null;
+
+    /** @type {Integer} Remember the last user id to prevent unnessecary reloads. */
+    GradingActions.prototype._lastUserId = 0;
+
+    /** @type {JQuery} JQuery node for the page region containing the user navigation. */
+    GradingActions.prototype._region = null;
+
+    /**
+     * Show the actions if there is valid user.
+     *
+     * @method _showActionsForm
+     * @private
+     * @param {Event} event
+     * @param {Integer} userid
+     * @return {Deferred} promise resolved when the animations are complete.
+     */
+    GradingActions.prototype._showActionsForm = function(event, userid) {
+        var form = this._region.find('[data-region=grading-actions-form]');
+
+        if (userid != this._lastUserId && userid > 0) {
+            this._lastUserId = userid;
+        }
+        if (userid > 0) {
+            form.removeClass('hide');
+        } else {
+            form.addClass('hide');
+        }
+
+    };
+
+    /**
+     * Trigger the named action.
+     *
+     * @method _trigger
+     * @private
+     * @param {String} action
+     */
+    GradingActions.prototype._trigger = function(action) {
+        $(document).trigger(action);
+    };
+
+    return GradingActions;
+});
diff --git a/mod/assign/amd/src/grading_form_change_checker.js b/mod/assign/amd/src/grading_form_change_checker.js
new file mode 100644
index 00000000000..0ef2e953c63
--- /dev/null
+++ b/mod/assign/amd/src/grading_form_change_checker.js
@@ -0,0 +1,60 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Simple method to check for changes to a form between two points in time.
+ *
+ * @module     mod_assign/grading_form_change_checker
+ * @package    mod_assign
+ * @copyright  2016 Damyon Wiese <damyon@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @since      3.1
+ */
+define(['jquery'], function($) {
+
+    return /** @alias module:mod_assign/grading_form_change_checker */ {
+        /**
+         * Save the values in the form to a data attribute so they can be compared later for changes.
+         *
+         * @method saveFormState
+         * @param {String} selector The selector for the form element.
+         */
+        saveFormState: function(selector) {
+            $(selector).trigger('save-form-state');
+            var data = $(selector).serialize();
+            $(selector).data('saved-form-state', data);
+        },
+
+        /**
+         * Compare the current values in the form to the previously saved state.
+         *
+         * @method checkFormForChanges
+         * @param {String} selector The selector for the form element.
+         * @return {Boolean} True if there are changes to the form data.
+         */
+        checkFormForChanges: function(selector) {
+
+            $(selector).trigger('save-form-state');
+
+            var data = $(selector).serialize(),
+                previousdata = $(selector).data('saved-form-state');
+
+            if (typeof previousdata === 'undefined') {
+                return false;
+            }
+            return (previousdata != data);
+        }
+    };
+});
diff --git a/mod/assign/amd/src/grading_navigation.js b/mod/assign/amd/src/grading_navigation.js
new file mode 100644
index 00000000000..9f50c7f8745
--- /dev/null
+++ b/mod/assign/amd/src/grading_navigation.js
@@ -0,0 +1,470 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Javascript to handle changing users via the user selector in the header.
+ *
+ * @module     mod_assign/grading_navigation
+ * @package    mod_assign
+ * @copyright  2016 Damyon Wiese <damyon@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @since      3.1
+ */
+define(['jquery', 'core/notification', 'core/str', 'core/form-autocomplete',
+        'core/ajax', 'mod_assign/grading_form_change_checker'],
+       function($, notification, str, autocomplete, ajax, checker) {
+
+    /**
+     * GradingNavigation class.
+     *
+     * @class GradingNavigation
+     * @param {String} selector The selector for the page region containing the user navigation.
+     */
+    var GradingNavigation = function(selector) {
+        this._regionSelector = selector;
+        this._region = $(selector);
+        this._filters = [];
+        this._users = [];
+        this._filteredUsers = [];
+
+        // Get the current user list from a webservice.
+        this._loadAllUsers();
+
+        // Attach listeners to the select and arrow buttons.
+
+        this._region.find('[data-action="previous-user"]').on('click', this._handlePreviousUser.bind(this));
+        this._region.find('[data-action="next-user"]').on('click', this._handleNextUser.bind(this));
+        this._region.find('[data-action="change-user"]').on('change', this._handleChangeUser.bind(this));
+        this._region.find('[data-region="user-filters"]').on('click', this._toggleExpandFilters.bind(this));
+
+        $(document).on('user-changed', this._refreshSelector.bind(this));
+
+        // Position the configure filters panel under the link that expands it.
+        var toggleLink = this._region.find('[data-region="user-filters"]');
+        var configPanel = $(document.getElementById(toggleLink.attr('aria-controls')));
+
+        configPanel.on('change', '[type="checkbox"]', this._filterChanged.bind(this));
+
+        var userid = $('[data-region="grading-navigation-panel"]').data('first-userid');
+        if (userid) {
+            this._selectUserById(userid);
+        }
+
+        str.get_string('changeuser', 'mod_assign').done(function(s) {
+                autocomplete.enhance('[data-action=change-user]', false, 'mod_assign/participant_selector', s);
+            }.bind(this)
+        ).fail(notification.exception);
+
+        // We do not allow navigation while ajax requests are pending.
+
+        $(document).bind("start-loading-user", function(){
+            this._isLoading = true;
+        }.bind(this));
+        $(document).bind("finish-loading-user", function(){
+            this._isLoading = false;
+        }.bind(this));
+    };
+
+    /** @type {Boolean} Boolean tracking active ajax requests. */
+    GradingNavigation.prototype._isLoading = false;
+
+    /** @type {String} Selector for the page region containing the user navigation. */
+    GradingNavigation.prototype._regionSelector = null;
+
+    /** @type {Array} The list of active filter keys */
+    GradingNavigation.prototype._filters = null;
+
+    /** @type {Array} The list of users */
+    GradingNavigation.prototype._users = null;
+
+    /** @type {JQuery} JQuery node for the page region containing the user navigation. */
+    GradingNavigation.prototype._region = null;
+
+    /**
+     * Load the list of all users for this assignment.
+     *
+     * @private
+     * @method _loadAllUsers
+     */
+    GradingNavigation.prototype._loadAllUsers = function() {
+        var select = this._region.find('[data-action=change-user]');
+        var assignmentid = select.attr('data-assignmentid');
+        var groupid = select.attr('data-groupid');
+
+        ajax.call([{
+            methodname: 'mod_assign_list_participants',
+            args: { assignid: assignmentid, groupid: groupid, filter: '', onlyids: true },
+            done: this._usersLoaded.bind(this),
+            fail: notification.exception
+        }]);
+    };
+
+    /**
+     * Call back to rebuild the user selector and x of y info when the user list is updated.
+     *
+     * @private
+     * @method _usersLoaded
+     * @param {Array} users
+     */
+    GradingNavigation.prototype._usersLoaded = function(users) {
+        this._filteredUsers = this._users = users;
+        if (this._users.length) {
+            // Position the configure filters panel under the link that expands it.
+            var toggleLink = this._region.find('[data-region="user-filters"]');
+            var configPanel = $(document.getElementById(toggleLink.attr('aria-controls')));
+
+            configPanel.find('[type="checkbox"]').trigger('change');
+        } else {
+            this._selectNoUser();
+        }
+    };
+
+    /**
+     * Close the configure filters panel if a click is detected outside of it.
+     *
+     * @private
+     * @method _checkClickOutsideConfigureFilters
+     * @param {Event}
+     */
+    GradingNavigation.prototype._checkClickOutsideConfigureFilters = function(event) {
+        var configPanel = this._region.find('[data-region="configure-filters"]');
+
+        if (!configPanel.is(event.target) && configPanel.has(event.target).length === 0) {
+            var toggleLink = this._region.find('[data-region="user-filters"]');
+
+            configPanel.hide();
+            configPanel.attr('aria-hidden', 'true');
+            toggleLink.attr('aria-expanded', 'false');
+            $(document).unbind('click.mod_assign_grading_navigation');
+        }
+    };
+
+    /**
+     * Turn a filter on or off.
+     *
+     * @private
+     * @method _filterChanged
+     * @param {Event}
+     */
+    GradingNavigation.prototype._filterChanged = function(event) {
+        var name = $(event.target).attr('name');
+        var key = name.split('_').pop();
+        var enabled = $(event.target).prop('checked');
+
+        if (enabled) {
+            if (this._filters.indexOf(key) == -1) {
+                this._filters[this._filters.length] = key;
+            }
+        } else {
+            var index = this._filters.indexOf(key);
+            if (index != -1) {
+                this._filters.splice(index, 1);
+            }
+        }
+
+        // Update the active filter string.
+        var filterlist = [];
+        this._region.find('[data-region="configure-filters"]').find('[type="checkbox"]').each(function(idx, ele) {
+            if ($(ele).prop('checked')) {
+                filterlist[filterlist.length] = $(ele).closest('label').text();
+            }
+        }.bind(this));
+        if (filterlist.length) {
+            this._region.find('[data-region="user-filters"] span').text(filterlist.join(', '));
+        } else {
+            str.get_string('nofilters', 'mod_assign').done(function(s) {
+                this._region.find('[data-region="user-filters"] span').text(s);
+            }.bind(this)).fail(notification.exception);
+        }
+
+        // Filter the options in the select box that do not match the current filters.
+
+        var select = this._region.find('[data-action=change-user]');
+        var userid = select.attr('data-selected');
+        var foundIndex = 0;
+
+        this._filteredUsers = [];
+
+        $.each(this._users, function(index, user) {
+            var show = true;
+            $.each(this._filters, function(filterindex, filter) {
+                if (filter == "submitted") {
+                    if (user.submitted == "0") {
+                        show = false;
+                    }
+                } else if (filter == "notsubmitted") {
+                    if (user.submitted == "1") {
+                        show = false;
+                    }
+                } else if (filter == "requiregrading") {
+                    if (user.requiregrading == "0") {
+                        show = false;
+                    }
+                }
+            }.bind(this));
+
+            if (show) {
+                this._filteredUsers[this._filteredUsers.length] = user;
+                if (userid == user.id) {
+                    foundIndex = index;
+                }
+            }
+        }.bind(this));
+
+        if (this._filteredUsers.length) {
+            this._selectUserById(this._filteredUsers[foundIndex].id);
+        } else {
+            this._selectNoUser();
+        }
+    };
+
+    /**
+     * Select no users, because no users match the filters.
+     *
+     * @private
+     * @method _selectNoUser
+     */
+    GradingNavigation.prototype._selectNoUser = function() {
+        // Detect unsaved changes, and offer to save them - otherwise change user right now.
+        if (this._isLoading) {
+            return;
+        }
+        if (checker.checkFormForChanges('[data-region="grade-panel"] .gradeform')) {
+            // Form has changes, so we need to confirm before switching users.
+            str.get_strings([
+                { key: 'unsavedchanges', component: 'mod_assign' },
+                { key: 'unsavedchangesquestion', component: 'mod_assign' },
+                { key: 'saveandcontinue', component: 'mod_assign' },
+                { key: 'cancel', component: 'core' },
+            ]).done(function(strs) {
+                notification.confirm(strs[0], strs[1], strs[2], strs[3], function() {
+                    $(document).trigger('save-changes', -1);
+                });
+            }.bind(this));
+        } else {
+            $(document).trigger('user-changed', -1);
+        }
+    };
+
+    /**
+     * Select the specified user by id.
+     *
+     * @private
+     * @method _selectUserById
+     * @param {Number} userid
+     */
+    GradingNavigation.prototype._selectUserById = function(userid) {
+        var select = this._region.find('[data-action=change-user]');
+        var useridnumber = parseInt(userid, 10);
+
+        // Detect unsaved changes, and offer to save them - otherwise change user right now.
+        if (this._isLoading) {
+            return;
+        }
+        if (checker.checkFormForChanges('[data-region="grade-panel"] .gradeform')) {
+            // Form has changes, so we need to confirm before switching users.
+            str.get_strings([
+                { key: 'unsavedchanges', component: 'mod_assign' },
+                { key: 'unsavedchangesquestion', component: 'mod_assign' },
+                { key: 'saveandcontinue', component: 'mod_assign' },
+                { key: 'cancel', component: 'core' },
+            ]).done(function(strs) {
+                notification.confirm(strs[0], strs[1], strs[2], strs[3], function() {
+                    $(document).trigger('save-changes', useridnumber);
+                });
+            }.bind(this));
+        } else {
+            select.attr('data-selected', userid);
+
+            if (!isNaN(useridnumber) && useridnumber > 0) {
+                $(document).trigger('user-changed', userid);
+            }
+        }
+    };
+
+    /**
+     * Expand or collapse the filter config panel.
+     *
+     * @private
+     * @method _toggleExpandFilters
+     * @param {Event}
+     */
+    GradingNavigation.prototype._toggleExpandFilters = function(event) {
+        event.preventDefault();
+        var toggleLink = $(event.target).closest('[data-region="user-filters"]');
+        var expanded = toggleLink.attr('aria-expanded') == 'true';
+        var configPanel = $(document.getElementById(toggleLink.attr('aria-controls')));
+
+        if (expanded) {
+            configPanel.hide();
+            configPanel.attr('aria-hidden', 'true');
+            toggleLink.attr('aria-expanded', 'false');
+            $(document).unbind('click.mod_assign_grading_navigation');
+        } else {
+            configPanel.css('display', 'inline-block');
+            configPanel.attr('aria-hidden', 'false');
+            toggleLink.attr('aria-expanded', 'true');
+            event.stopPropagation();
+            $(document).on('click.mod_assign_grading_navigation', this._checkClickOutsideConfigureFilters.bind(this));
+        }
+    };
+
+    /**
+     * Change to the previous user in the grading list.
+     *
+     * @private
+     * @method _handlePreviousUser
+     * @param {Event} e
+     */
+    GradingNavigation.prototype._handlePreviousUser = function(e) {
+        e.preventDefault();
+        var select = this._region.find('[data-action=change-user]');
+        var currentUserId = select.attr('data-selected');
+        var i = 0, currentIndex = 0;
+
+        for (i = 0; i < this._filteredUsers.length; i++) {
+            if (this._filteredUsers[i].id == currentUserId) {
+                currentIndex = i;
+                break;
+            }
+        }
+
+        var count = this._filteredUsers.length;
+        var newIndex = (currentIndex - 1);
+        if (newIndex < 0) {
+            newIndex = count - 1;
+        }
+
+        if (count) {
+            this._selectUserById(this._filteredUsers[newIndex].id);
+        }
+    };
+
+    /**
+     * Change to the next user in the grading list.
+     *
+     * @param {Event} e
+     */
+    GradingNavigation.prototype._handleNextUser = function(e) {
+        e.preventDefault();
+        var select = this._region.find('[data-action=change-user]');
+        var currentUserId = select.attr('data-selected');
+        var i = 0, currentIndex = 0;
+
+        for (i = 0; i < this._filteredUsers.length; i++) {
+            if (this._filteredUsers[i].id == currentUserId) {
+                currentIndex = i;
+                break;
+            }
+        }
+
+        var count = this._filteredUsers.length;
+        var newIndex = (currentIndex + 1) % count;
+
+        if (count) {
+            this._selectUserById(this._filteredUsers[newIndex].id);
+        }
+    };
+
+    /**
+     * Rebuild the x of y string.
+     *
+     * @private
+     * @method _refreshCount
+     */
+    GradingNavigation.prototype._refreshCount = function() {
+        var select = this._region.find('[data-action=change-user]');
+        var userid = select.attr('data-selected');
+        var i = 0;
+        var currentIndex = 0;
+
+        if (isNaN(userid) || userid <= 0) {
+            this._region.find('[data-region="user-count"]').hide();
+        } else {
+            this._region.find('[data-region="user-count"]').show();
+
+            for (i = 0; i < this._filteredUsers.length; i++) {
+                if (this._filteredUsers[i].id == userid) {
+                    currentIndex = i;
+                    break;
+                }
+            }
+            var count = this._filteredUsers.length;
+            if (count) {
+                currentIndex += 1;
+            }
+            var param = { x: currentIndex, y: count };
+
+            str.get_string('xofy', 'mod_assign', param).done(function(s) {
+                this._region.find('[data-region="user-count-summary"]').text(s);
+            }.bind(this)).fail(notification.exception);
+        }
+    };
+
+    /**
+     * Respond to a user-changed event by updating the selector.
+     *
+     * @private
+     * @method _refreshSelector
+     * @param {Event} event
+     * @param {String} userid
+     */
+    GradingNavigation.prototype._refreshSelector = function(event, userid) {
+        var select = this._region.find('[data-action=change-user]');
+        userid = parseInt(userid, 10);
+
+        if (!isNaN(userid) && userid > 0) {
+            select.attr('data-selected', userid);
+        }
+        this._refreshCount();
+    };
+
+    /**
+     * Change to a different user in the grading list.
+     *
+     * @private
+     * @method _handleChangeUser
+     * @param {Event}
+     */
+    GradingNavigation.prototype._handleChangeUser = function() {
+        var select = this._region.find('[data-action=change-user]');
+        var userid = parseInt(select.val(), 10);
+
+        if (this._isLoading) {
+            return;
+        }
+        if (checker.checkFormForChanges('[data-region="grade-panel"] .gradeform')) {
+            // Form has changes, so we need to confirm before switching users.
+            str.get_strings([
+                { key: 'unsavedchanges', component: 'mod_assign' },
+                { key: 'unsavedchangesquestion', component: 'mod_assign' },
+                { key: 'saveandcontinue', component: 'mod_assign' },
+                { key: 'cancel', component: 'core' },
+            ]).done(function(strs) {
+                notification.confirm(strs[0], strs[1], strs[2], strs[3], function() {
+                    $(document).trigger('save-changes', userid);
+                });
+            }.bind(this));
+        } else {
+            if (!isNaN(userid) && userid > 0) {
+                select.attr('data-selected', userid);
+
+                $(document).trigger('user-changed', userid);
+            }
+        }
+    };
+
+    return GradingNavigation;
+});
diff --git a/mod/assign/amd/src/grading_navigation_user_info.js b/mod/assign/amd/src/grading_navigation_user_info.js
new file mode 100644
index 00000000000..617af6859c6
--- /dev/null
+++ b/mod/assign/amd/src/grading_navigation_user_info.js
@@ -0,0 +1,147 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Javascript controller for the "User summary" panel at the top of the page.
+ *
+ * @module     mod_assign/grading_navigation_user_info
+ * @package    mod_assign
+ * @class      UserInfo
+ * @copyright  2016 Damyon Wiese <damyon@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @since      3.1
+ */
+define(['jquery', 'core/notification', 'core/ajax', 'core/templates'], function($, notification, ajax, templates) {
+
+    /**
+     * UserInfo class.
+     *
+     * @class UserInfo
+     * @param {String} selector The selector for the page region containing the user navigation.
+     */
+    var UserInfo = function(selector) {
+        this._regionSelector = selector;
+        this._region = $(selector);
+        this._userCache = [];
+
+        $(document).on('user-changed', this._refreshUserInfo.bind(this));
+    };
+
+    /** @type {String} Selector for the page region containing the user navigation. */
+    UserInfo.prototype._regionSelector = null;
+
+    /** @type {Array} Cache of user info contexts. */
+    UserInfo.prototype._userCache = null;
+
+    /** @type {JQuery} JQuery node for the page region containing the user navigation. */
+    UserInfo.prototype._region = null;
+
+    /** @type {Integer} Remember the last user id to prevent unnessecary reloads. */
+    UserInfo.prototype._lastUserId = 0;
+
+    /**
+     * Get the user context - re-render the template in the page.
+     *
+     * @private
+     * @method _refreshUserInfo
+     * @param {Event} event
+     * @param {Number} userid
+     */
+    UserInfo.prototype._refreshUserInfo = function(event, userid) {
+        var promise = $.Deferred();
+
+        // Skip reloading if it is the same user.
+        if (this._lastUserId == userid) {
+            return;
+        }
+        this._lastUserId = userid;
+
+        // First insert the loading template.
+        templates.render('mod_assign/loading', {}).done(function(html, js) {
+            // Update the page.
+            this._region.fadeOut("fast", function() {
+                templates.replaceNodeContents(this._region, html, js);
+                this._region.fadeIn("fast");
+            }.bind(this));
+
+            if (userid < 0) {
+                // Render the template.
+                templates.render('mod_assign/grading_navigation_no_users', {}).done(function(html, js) {
+                    // Update the page.
+                    this._region.fadeOut("fast", function() {
+                        templates.replaceNodeContents(this._region, html, js);
+                        this._region.fadeIn("fast");
+                    }.bind(this));
+                }.bind(this)).fail(notification.exception);
+                return;
+            }
+
+            if (typeof this._userCache[userid] !== "undefined") {
+                promise.resolve(this._userCache[userid]);
+            } else {
+                // Load context from ajax.
+                var requests = ajax.call([{
+                    methodname: 'core_user_get_users_by_field',
+                    args: { field: 'id', values: [ userid ] }
+                }]);
+
+                requests[0].done(function(result) {
+                    if (result.length < 1) {
+                        promise.reject('No users');
+                    } else {
+                        $.each(result, function(index, user) {
+                            this._userCache[user.id] = user;
+                        }.bind(this));
+                        promise.resolve(this._userCache[userid]);
+                    }
+                }.bind(this)).fail(notification.exception);
+            }
+
+            promise.done(function(context) {
+                var identityfields = $('[data-showuseridentity]').data('showuseridentity').split(','),
+                    identity = [];
+                // Render the template.
+                context.courseid = $('[data-region="grading-navigation-panel"]').attr('data-courseid');
+                // Build a string for the visible identity fields listed in showuseridentity config setting.
+                $.each(identityfields, function(i, k) {
+                    if (typeof context[k] !== 'undefined' && context[k] !== '') {
+                        context.hasidentity = true;
+                        identity.push(context[k]);
+                    }
+                });
+                context.identity = identity.join(', ');
+
+                templates.render('mod_assign/grading_navigation_user_summary', context).done(function(html, js) {
+                    // Update the page.
+                    this._region.fadeOut("fast", function() {
+                        templates.replaceNodeContents(this._region, html, js);
+                        this._region.fadeIn("fast");
+                    }.bind(this));
+                }.bind(this)).fail(notification.exception);
+            }.bind(this)).fail(function() {
+                // Render the template.
+                templates.render('mod_assign/grading_navigation_no_users', {}).done(function(html, js) {
+                    // Update the page.
+                    this._region.fadeOut("fast", function() {
+                        templates.replaceNodeContents(this._region, html, js);
+                        this._region.fadeIn("fast");
+                    }.bind(this));
+                }.bind(this)).fail(notification.exception);
+            });
+        }.bind(this)).fail(notification.exception);
+    };
+
+    return UserInfo;
+});
diff --git a/mod/assign/amd/src/grading_panel.js b/mod/assign/amd/src/grading_panel.js
new file mode 100644
index 00000000000..ba2f8f39f17
--- /dev/null
+++ b/mod/assign/amd/src/grading_panel.js
@@ -0,0 +1,307 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Javascript controller for the "Grading" panel at the right of the page.
+ *
+ * @module     mod_assign/grading_panel
+ * @package    mod_assign
+ * @class      GradingPanel
+ * @copyright  2016 Damyon Wiese <damyon@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @since      3.1
+ */
+define(['jquery', 'core/notification', 'core/templates', 'core/fragment',
+        'core/ajax', 'core/str', 'mod_assign/grading_form_change_checker'],
+       function($, notification, templates, fragment, ajax, str, checker) {
+
+    /**
+     * GradingPanel class.
+     *
+     * @class GradingPanel
+     * @param {String} selector The selector for the page region containing the user navigation.
+     */
+    var GradingPanel = function(selector) {
+        this._regionSelector = selector;
+        this._region = $(selector);
+        this._userCache = [];
+
+        $(document).on('user-changed', this._refreshGradingPanel.bind(this));
+        $(document).on('save-changes', this._submitForm.bind(this));
+        $(document).on('reset', this._resetForm.bind(this));
+
+        $(document).on('save-form-state', this._saveFormState.bind(this));
+    };
+
+    /** @type {String} Selector for the page region containing the user navigation. */
+    GradingPanel.prototype._regionSelector = null;
+
+    /** @type {Integer} Remember the last user id to prevent unnessecary reloads. */
+    GradingPanel.prototype._lastUserId = 0;
+
+    /** @type {Integer} Remember the last attempt number to prevent unnessecary reloads. */
+    GradingPanel.prototype._lastAttemptNumber = -1;
+
+    /** @type {JQuery} JQuery node for the page region containing the user navigation. */
+    GradingPanel.prototype._region = null;
+
+    /**
+     * Fade the dom node out, update it, and fade it back.
+     *
+     * @private
+     * @method _niceReplaceNodeContents
+     * @param {JQuery} node
+     * @param {String} html
+     * @param {String} js
+     * @return {Deferred} promise resolved when the animations are complete.
+     */
+    GradingPanel.prototype._niceReplaceNodeContents = function(node, html, js) {
+        var promise = $.Deferred();
+
+        node.fadeOut("fast", function() {
+            templates.replaceNodeContents(node, html, js);
+            node.fadeIn("fast", function() {
+                promise.resolve();
+            });
+        });
+
+        return promise.promise();
+    };
+
+    /**
+     * Make sure all form fields have the latest saved state.
+     * @private
+     * @method _saveFormState
+     */
+    GradingPanel.prototype._saveFormState = function() {
+        // Grrrrr! TinyMCE you know what you did.
+        if (typeof window.tinyMCE !== 'undefined') {
+            window.tinyMCE.triggerSave();
+        }
+
+        // Copy data from notify students checkbox which was moved out of the form.
+        var checked = $('[data-region="grading-actions-form"] [name="sendstudentnotifications"]').val();
+        $('.gradeform [name="sendstudentnotifications"]').val(checked);
+    };
+
+    /**
+     * Make form submit via ajax.
+     *
+     * @private
+     * @method _submitForm
+     */
+    GradingPanel.prototype._submitForm = function(event, nextUserId) {
+        // The form was submitted - send it via ajax instead.
+        var form = $(this._region.find('form.gradeform'));
+
+        $('[data-region="overlay"]').show();
+
+        // We call this, so other modules can update the form with the latest state.
+        form.trigger('save-form-state');
+
+        // Now we get all the current values from the form.
+        var data = form.serialize();
+        var assignmentid = this._region.attr('data-assignmentid');
+
+        // Now we can continue...
+        ajax.call([{
+            methodname: 'mod_assign_submit_grading_form',
+            args: {assignmentid: assignmentid, userid: this._lastUserId, jsonformdata: JSON.stringify(data)},
+            done: this._handleFormSubmissionResponse.bind(this, data, nextUserId),
+            fail: notification.exception
+        }]);
+    };
+
+    /**
+     * Handle form submission response.
+     *
+     * @private
+     * @method _handleFormSubmissionResponse
+     * @param {Array} formdata - submitted values
+     * @param {Integer} nextUserId - optional. The id of the user to load after the form is saved.
+     * @param {Array} response List of errors.
+     */
+    GradingPanel.prototype._handleFormSubmissionResponse = function(formdata, nextUserId, response) {
+        if (typeof nextUserId === "undefined") {
+            nextUserId = this._lastUserId;
+        }
+        if (response.length) {
+            // There was an error saving the grade. Re-render the form using the submitted data so we can show
+            // validation errors.
+            $(document).trigger('reset', [this._lastUserId, formdata]);
+        } else {
+            str.get_strings([
+                { key: 'changessaved', component: 'core' },
+                { key: 'gradechangessaveddetail', component: 'mod_assign' },
+            ]).done(function(strs) {
+                notification.alert(strs[0], strs[1]);
+            }).fail(notification.exception);
+            if (nextUserId == this._lastUserId) {
+                $(document).trigger('reset', nextUserId);
+            } else {
+                $(document).trigger('user-changed', nextUserId);
+            }
+        }
+        $('[data-region="overlay"]').hide();
+    };
+
+    /**
+     * Refresh form with default values.
+     *
+     * @private
+     * @method _resetForm
+     * @param {Event} e
+     * @param {Integer} userid
+     * @param {Array} formdata
+     */
+    GradingPanel.prototype._resetForm = function(e, userid, formdata) {
+        // The form was cancelled - refresh with default values.
+        var event = $.Event("custom");
+        if (typeof userid == "undefined") {
+            userid = this._lastUserId;
+        }
+        this._lastUserId = 0;
+        this._refreshGradingPanel(event, userid, formdata);
+    };
+
+    /**
+     * Open a picker to choose an older attempt.
+     *
+     * @private
+     * @method _chooseAttempt
+     */
+    GradingPanel.prototype._chooseAttempt = function(e) {
+        // Show a dialog.
+
+        // The form is in the element pointed to by data-submissions.
+        var link = $(e.target);
+        var submissionsId = link.data('submissions');
+        var submissionsform = $(document.getElementById(submissionsId));
+        var formcopy = submissionsform.clone();
+        var formhtml = formcopy.wrap($('<form/>')).html();
+
+        str.get_strings([
+            { key: 'viewadifferentattempt', component: 'mod_assign' },
+            { key: 'view', component: 'core' },
+            { key: 'cancel', component: 'core' },
+        ]).done(function(strs) {
+            notification.confirm(strs[0], formhtml, strs[1], strs[2], function() {
+                var attemptnumber = $("input:radio[name='select-attemptnumber']:checked").val();
+
+                this._refreshGradingPanel(null, this._lastUserId, '', attemptnumber);
+            }.bind(this));
+        }.bind(this)).fail(notification.exception);
+    };
+
+    /**
+     * Add popout buttons
+     *
+     * @private
+     * @method _addPopoutButtons
+     * @param {JQuery} region The region to add popout buttons to.
+     */
+    GradingPanel.prototype._addPopoutButtons = function(selector) {
+        var region = $(selector);
+
+        templates.render('mod_assign/popout_button', {}).done(function(html) {
+            region.find('.fitem_ffilemanager .fitemtitle').append(html);
+            region.find('.fitem_feditor .fitemtitle').append(html);
+            region.find('.fitem_f .fitemtitle').append(html);
+
+            region.on('click', '[data-region="popout-button"]', this._togglePopout.bind(this));
+        }.bind(this)).fail(notification.exception);
+    };
+
+    /**
+     * Make a div "popout" or "popback".
+     *
+     * @private
+     * @method _togglePopout
+     * @param {Event} event
+     */
+    GradingPanel.prototype._togglePopout = function(event) {
+        event.preventDefault();
+        var container = $(event.target).closest('.fitem');
+        if (container.hasClass('popout')) {
+            $('.popout').removeClass('popout');
+        } else {
+            $('.popout').removeClass('popout');
+            container.addClass('popout');
+            container.addClass('moodle-has-zindex');
+        }
+    };
+
+    /**
+     * Get the user context - re-render the template in the page.
+     *
+     * @private
+     * @method _refreshGradingPanel
+     * @param {Event} event
+     * @param {Number} userid
+     * @param {String} serialised submission data.
+     */
+    GradingPanel.prototype._refreshGradingPanel = function(event, userid, submissiondata, attemptnumber) {
+        var contextid = this._region.attr('data-contextid');
+        if (typeof submissiondata === 'undefined') {
+            submissiondata = '';
+        }
+        if (typeof attemptnumber === 'undefined') {
+            attemptnumber = -1;
+        }
+        // Skip reloading if it is the same user.
+        if (this._lastUserId == userid && this._lastAttemptNumber == attemptnumber && submissiondata === '') {
+            return;
+        }
+        this._lastUserId = userid;
+        this._lastAttemptNumber = attemptnumber;
+        $(document).trigger('start-loading-user');
+        // Tell behat to back off too.
+        window.M.util.js_pending('mod-assign-loading-user');
+        // First insert the loading template.
+        templates.render('mod_assign/loading', {}).done(function(html, js) {
+            // Update the page.
+            this._niceReplaceNodeContents(this._region, html, js).done(function() {
+                if (userid > 0) {
+                    this._region.show();
+                    // Reload the grading form "fragment" for this user.
+                    var params = { userid: userid, attemptnumber: attemptnumber, jsonformdata: JSON.stringify(submissiondata) };
+                    fragment.loadFragment('mod_assign', 'gradingpanel', contextid, params).done(function(html, js) {
+                        this._niceReplaceNodeContents(this._region, html, js)
+                        .done(function() {
+                            checker.saveFormState('[data-region="grade-panel"] .gradeform');
+                            $('[data-region="attempt-chooser"]').on('click', this._chooseAttempt.bind(this));
+                            this._addPopoutButtons('[data-region="grade-panel"] .gradeform');
+                            $(document).trigger('finish-loading-user');
+                            // Tell behat we are friends again.
+                            window.M.util.js_complete('mod-assign-loading-user');
+                        }.bind(this))
+                        .fail(notification.exception);
+                    }.bind(this)).fail(notification.exception);
+                } else {
+                    this._region.hide();
+                    var reviewPanel = $('[data-region="review-panel"]');
+                    if (reviewPanel.length) {
+                        this._niceReplaceNodeContents(reviewPanel, '', '');
+                    }
+                    $(document).trigger('finish-loading-user');
+                    // Tell behat we are friends again.
+                    window.M.util.js_complete('mod-assign-loading-user');
+                }
+            }.bind(this));
+        }.bind(this)).fail(notification.exception);
+    };
+
+    return GradingPanel;
+});
diff --git a/mod/assign/amd/src/grading_review_panel.js b/mod/assign/amd/src/grading_review_panel.js
new file mode 100644
index 00000000000..fffe2e41255
--- /dev/null
+++ b/mod/assign/amd/src/grading_review_panel.js
@@ -0,0 +1,62 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Javascript controller for the "Review" panel at the left of the page.
+ *
+ * @module     mod_assign/grading_review_panel
+ * @package    mod_assign
+ * @class      GradingReviewPanel
+ * @copyright  2016 Damyon Wiese <damyon@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @since      3.1
+ */
+define(['jquery'], function($) {
+
+    /**
+     * GradingReviewPanel class.
+     *
+     * @class GradingReviewPanel
+     * @param {String} selector The selector for the page region containing the user navigation.
+     */
+    var GradingReviewPanel = function() {
+        this._region = $('[data-region="review-panel"]');
+    };
+
+    /** @type {JQuery} JQuery node for the page region containing the user navigation. */
+    GradingReviewPanel.prototype._region = null;
+
+    /**
+     * It is first come first served to get ownership of the grading review panel.
+     * There can be only one.
+     *
+     * @public
+     * @method getReviewPanel
+     * @param {String} pluginname - the first plugin to ask for the panel gets it.
+     * @return {DOMNode} or false
+     */
+    GradingReviewPanel.prototype.getReviewPanel = function(pluginname) {
+        var owner = this._region.data('panel-owner');
+        if (typeof owner == "undefined") {
+            this._region.data('review-panel-plugin', pluginname);
+        }
+        if (this._region.data('review-panel-plugin') == pluginname) {
+            return this._region[0];
+        }
+        return false;
+    };
+
+    return GradingReviewPanel;
+});
diff --git a/mod/assign/amd/src/participant_selector.js b/mod/assign/amd/src/participant_selector.js
new file mode 100644
index 00000000000..f084b0a7a40
--- /dev/null
+++ b/mod/assign/amd/src/participant_selector.js
@@ -0,0 +1,113 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Custom auto-complete adapter to load users from the assignment list_participants webservice.
+ *
+ * @module     mod_assign/participants_selector
+ * @copyright  2015 Damyon Wiese <damyon@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define(['core/ajax', 'jquery', 'core/templates'], function(ajax, $, templates) {
+
+
+    return /** @alias module:mod_assign/participants_selector */ {
+
+        // Public variables and functions.
+        /**
+         * Process the results returned from transport (convert to value + label)
+         *
+         * @method processResults
+         * @param {String} selector
+         * @param {Array} data
+         * @return {Array}
+         */
+        processResults: function(selector, data) {
+            var results = [], i = 0;
+            for (i = 0; i < data.length; i++) {
+                results[i] = { value: data[i].id, label: data[i].label };
+            }
+            return results;
+        },
+
+        /**
+         * Fetch results based on the current query. This also renders each result from a template before returning them.
+         *
+         * @method transport
+         * @param {String} selector Selector for the original select element
+         * @param {String} query Current search string
+         * @param {Function} success Success handler
+         * @param {Function} failure Failure handler
+         */
+        transport: function(selector, query, success, failure) {
+            var assignmentid = $(selector).attr('data-assignmentid');
+            var filters = $('[data-region="configure-filters"] input[type="checkbox"]');
+            var filterstrings = [];
+
+            filters.each(function(index, element) {
+                filterstrings[$(element).attr('name')] = $(element).prop('checked');
+            });
+
+            var promise = ajax.call([{
+                methodname: 'mod_assign_list_participants', args: { assignid: assignmentid, groupid: 0, filter: query, limit: 30 }
+            }]);
+
+            promise[0].then(function(results) {
+                var promises = [];
+                var identityfields = $('[data-showuseridentity]').data('showuseridentity').split(',');
+
+                // We got the results, now we loop over them and render each one from a template.
+                $.each(results, function(index, user) {
+                    var ctx = user,
+                        identity = [],
+                        show = true;
+
+                    if (filterstrings.filter_submitted && !user.submitted) {
+                        show = false;
+                    }
+                    if (filterstrings.filter_notsubmitted && user.submitted) {
+                        show = false;
+                    }
+                    if (filterstrings.filter_requiregrading && !user.requiregrading) {
+                        show = false;
+                    }
+                    if (show) {
+                        $.each(identityfields, function(i, k) {
+                            if (typeof user[k] !== 'undefined' && user[k] !== '') {
+                                ctx.hasidentity = true;
+                                identity.push(user[k]);
+                            }
+                        });
+                        ctx.identity = identity.join(', ');
+                        promises.push(templates.render('mod_assign/list_participant_user_summary', ctx));
+                    }
+                });
+
+                // When all the templates have been rendered, call the success handler.
+                $.when.apply($.when, promises).then(function() {
+                    var args = arguments,
+                        i = 0;
+
+                    $.each(results, function(index, user) {
+                        user.label = args[i];
+                        i++;
+                    });
+
+                    success(results);
+                });
+            }, failure);
+        }
+    };
+});
diff --git a/mod/assign/classes/output/grading_app.php b/mod/assign/classes/output/grading_app.php
new file mode 100644
index 00000000000..d8a47bbff4f
--- /dev/null
+++ b/mod/assign/classes/output/grading_app.php
@@ -0,0 +1,163 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Renderable that initialises the grading "app".
+ *
+ * @package    mod_assign
+ * @copyright  2016 Damyon Wiese
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace mod_assign\output;
+
+defined('MOODLE_INTERNAL') || die();
+
+use renderer_base;
+use renderable;
+use templatable;
+use stdClass;
+
+/**
+ * Grading app renderable.
+ *
+ * @package    mod_assign
+ * @since      Moodle 3.1
+ * @copyright  2016 Damyon Wiese
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class grading_app implements templatable, renderable {
+
+    /**
+     * The initial user id.
+     */
+    public $userid = 0;
+
+    /**
+     * The initial group id.
+     */
+    public $groupid = 0;
+
+    /**
+     * The assignment instance.
+     */
+    public $assignment = null;
+
+    /**
+     * Constructor for this renderable.
+     *
+     * @param int $userid The user we will open the grading app too.
+     * @param int $groupid If groups are enabled this is the current course group.
+     * @param assign $assignment The assignment class
+     */
+    public function __construct($userid, $groupid, $assignment) {
+        $this->userid = $userid;
+        $this->groupid = $groupid;
+        $this->assignment = $assignment;
+        $this->participants = $assignment->list_participants_with_filter_status_and_group($groupid);
+        if (!$this->userid && count($this->participants)) {
+            $this->userid = reset($this->participants)->id;
+        }
+    }
+
+    /**
+     * Export this class data as a flat list for rendering in a template.
+     *
+     * @param renderer_base $output The current page renderer.
+     * @return stdClass - Flat list of exported data.
+     */
+    public function export_for_template(renderer_base $output) {
+        global $CFG;
+
+        $export = new stdClass();
+        $export->userid = $this->userid;
+        $export->assignmentid = $this->assignment->get_instance()->id;
+        $export->cmid = $this->assignment->get_course_module()->id;
+        $export->contextid = $this->assignment->get_context()->id;
+        $export->groupid = $this->groupid;
+        $export->name = $this->assignment->get_instance()->name;
+        $export->courseid = $this->assignment->get_course()->id;
+        $export->participants = array();
+        $num = 1;
+        foreach ($this->participants as $idx => $record) {
+            $user = new stdClass();
+            $user->id = $record->id;
+            $user->fullname = fullname($record);
+            $user->requiregrading = $record->requiregrading;
+            $user->submitted = $record->submitted;
+            if (!empty($record->groupid)) {
+                $user->groupid = $record->groupid;
+                $user->groupname = $record->groupname;
+            }
+            if ($record->id == $this->userid) {
+                $export->index = $num;
+                $user->current = true;
+            }
+            $export->participants[] = $user;
+            $num++;
+        }
+
+        $feedbackplugins = $this->assignment->get_feedback_plugins();
+        $showreview = false;
+        foreach ($feedbackplugins as $plugin) {
+            if ($plugin->is_enabled() && $plugin->is_visible()) {
+                if ($plugin->supports_review_panel()) {
+                    $showreview = true;
+                }
+            }
+        }
+
+        $export->showreview = $showreview;
+
+        $time = time();
+        $export->count = count($export->participants);
+        $export->coursename = $this->assignment->get_course_context()->get_context_name();
+        $export->caneditsettings = has_capability('mod/assign:addinstance', $this->assignment->get_context());
+        $export->duedate = $this->assignment->get_instance()->duedate;
+        $export->duedatestr = userdate($this->assignment->get_instance()->duedate);
+
+        // Time remaining.
+        $due = '';
+        if ($export->duedate - $time <= 0) {
+            $due = get_string('assignmentisdue', 'assign');
+        } else {
+            $due = get_string('timeremainingcolon', 'assign', format_time($export->duedate - $time));
+        }
+        $export->timeremainingstr = $due;
+
+        if ($export->duedate < $time) {
+            $export->cutoffdate = $this->assignment->get_instance()->cutoffdate;
+            $cutoffdate = $export->cutoffdate;
+            if ($cutoffdate) {
+                if ($cutoffdate > $time) {
+                    $late = get_string('latesubmissionsaccepted', 'assign', userdate($export->cutoffdate));
+                } else {
+                    $late = get_string('nomoresubmissionsaccepted', 'assign');
+                }
+                $export->cutoffdatestr = $late;
+            }
+        }
+
+        $export->defaultsendnotifications = $this->assignment->get_instance()->sendstudentnotifications;
+        $export->rarrow = $output->rarrow();
+        $export->larrow = $output->larrow();
+        // List of identity fields to display (the user info will not contain any fields the user cannot view anyway).
+        $export->showuseridentity = $CFG->showuseridentity;
+
+        return $export;
+    }
+
+}
diff --git a/mod/assign/db/services.php b/mod/assign/db/services.php
index d7dc5fd3814..8d41225d2ad 100644
--- a/mod/assign/db/services.php
+++ b/mod/assign/db/services.php
@@ -190,4 +190,24 @@ $functions = array(
             'capabilities'  => 'mod/assign:view',
             'services'      => array(MOODLE_OFFICIAL_MOBILE_SERVICE)
         ),
+
+        'mod_assign_list_participants' => array(
+                'classname'     => 'mod_assign_external',
+                'methodname'    => 'list_participants',
+                'classpath'     => 'mod/assign/externallib.php',
+                'description'   => 'List the participants for a single assignment, with some summary info about their submissions.',
+                'type'          => 'read',
+                'ajax'          => true,
+                'capabilities'  => 'mod/assign:view, mod/assign:viewgrades'
+        ),
+
+        'mod_assign_submit_grading_form' => array(
+                'classname'     => 'mod_assign_external',
+                'methodname'    => 'submit_grading_form',
+                'classpath'     => 'mod/assign/externallib.php',
+                'description'   => 'Submit the grading form data via ajax',
+                'type'          => 'write',
+                'ajax'          => true,
+                'capabilities'  => 'mod/assign:grade'
+        ),
 );
diff --git a/mod/assign/externallib.php b/mod/assign/externallib.php
index 74a7e94a4b9..c1d436500a6 100644
--- a/mod/assign/externallib.php
+++ b/mod/assign/externallib.php
@@ -2266,6 +2266,7 @@ class mod_assign_external extends external_api {
             )
         );
     }
+
     /**
      * Describes the parameters for view_submission_status.
      *
@@ -2567,4 +2568,194 @@ class mod_assign_external extends external_api {
         );
     }
 
+    /**
+     * Returns description of method parameters
+     *
+     * @return external_function_parameters
+     * @since Moodle 3.1
+     */
+    public static function list_participants_parameters() {
+        return new external_function_parameters(
+            array(
+                'assignid' => new external_value(PARAM_INT, 'assign instance id'),
+                'groupid' => new external_value(PARAM_INT, 'group id'),
+                'filter' => new external_value(PARAM_RAW, 'search string to filter the results'),
+                'skip' => new external_value(PARAM_INT, 'number of records to skip', VALUE_DEFAULT, 0),
+                'limit' => new external_value(PARAM_INT, 'maximum number of records to return', VALUE_DEFAULT, 0),
+                'onlyids' => new external_value(PARAM_BOOL, 'Do not return all user fields - only the id and flags (requiresgrading etc)', VALUE_DEFAULT, false),
+            )
+        );
+    }
+
+    /**
+     * Trigger the grading_table_viewed event.
+     *
+     * @param int $assignid the assign instance id
+     * @param int $groupid the current group id
+     * @param string $filter search string to filter the results.
+     * @param int $skip Number of records to skip
+     * @param int $limit Maximum number of records to return
+     * @return array of warnings and status result
+     * @since Moodle 3.0
+     * @throws moodle_exception
+     */
+    public static function list_participants($assignid, $groupid, $filter, $skip, $limit) {
+        global $DB, $CFG;
+        require_once($CFG->dirroot . "/mod/assign/locallib.php");
+        require_once($CFG->dirroot . "/user/lib.php");
+
+        $params = self::validate_parameters(self::list_participants_parameters(),
+                                            array(
+                                                'assignid' => $assignid,
+                                                'groupid' => $groupid,
+                                                'filter' => $filter,
+                                                'skip' => $skip,
+                                                'limit' => $limit
+                                            ));
+        $warnings = array();
+
+        // Request and permission validation.
+        $assign = $DB->get_record('assign', array('id' => $params['assignid']), 'id', MUST_EXIST);
+        list($course, $cm) = get_course_and_cm_from_instance($assign, 'assign');
+
+        $context = context_module::instance($cm->id);
+        self::validate_context($context);
+
+        require_capability('mod/assign:view', $context);
+
+        $assign = new assign($context, null, null);
+        $assign->require_view_grades();
+
+        $participants = $assign->list_participants_with_filter_status_and_group($params['groupid']);
+
+        $result = array();
+        $index = 0;
+        foreach ($participants as $record) {
+            // Preserve the fullname set by the assignment.
+            $fullname = $record->fullname;
+            $searchable = $fullname;
+            $match = false;
+            if (empty($filter)) {
+                $match = true;
+            } else {
+                $filter = core_text::strtolower($filter);
+                $value = core_text::strtolower($searchable);
+                if (is_string($value) && (core_text::strpos($value, $filter) !== false)) {
+                    $match = true;
+                }
+            }
+            if ($match) {
+                $index++;
+                if ($index <= $params['skip']) {
+                    continue;
+                }
+                if (($params['limit'] > 0) && (($index - $params['skip']) > $params['limit'])) {
+                    break;
+                }
+                // Now we do the expensive lookup of user details because we completed the filtering.
+                if (!$assign->is_blind_marking() && !$params['onlyids']) {
+                    $userdetails = user_get_user_details($record, $course);
+                } else {
+                    $userdetails = array('id' => $record->id);
+                }
+                $userdetails['fullname'] = $fullname;
+                $userdetails['submitted'] = $record->submitted;
+                $userdetails['requiregrading'] = $record->requiregrading;
+                if (!empty($record->groupid)) {
+                    $userdetails['groupid'] = $record->groupid;
+                }
+                if (!empty($record->groupname)) {
+                    $userdetails['groupname'] = $record->groupname;
+                }
+
+                $result[] = $userdetails;
+            }
+        }
+        return $result;
+    }
+
+    /**
+     * Returns description of method result value
+     *
+     * @return external_description
+     * @since Moodle 3.0
+     */
+    public static function list_participants_returns() {
+        return new external_multiple_structure(
+            new external_single_structure(array(
+                'id'    => new external_value(PARAM_INT, 'ID of the user'),
+                'username'    => new external_value(PARAM_RAW, 'Username', VALUE_OPTIONAL),
+                'firstname'   => new external_value(PARAM_NOTAGS, 'The first name(s) of the user', VALUE_OPTIONAL),
+                'lastname'    => new external_value(PARAM_NOTAGS, 'The family name of the user', VALUE_OPTIONAL),
+                'fullname'    => new external_value(PARAM_NOTAGS, 'The fullname of the user'),
+                'idnumber'    => new external_value(PARAM_NOTAGS, 'The idnumber of the user', VALUE_OPTIONAL),
+                'email'       => new external_value(PARAM_TEXT, 'Email address', VALUE_OPTIONAL),
+                'address'     => new external_value(PARAM_MULTILANG, 'Postal address', VALUE_OPTIONAL),
+                'phone1'      => new external_value(PARAM_NOTAGS, 'Phone 1', VALUE_OPTIONAL),
+                'phone2'      => new external_value(PARAM_NOTAGS, 'Phone 2', VALUE_OPTIONAL),
+                'icq'         => new external_value(PARAM_NOTAGS, 'icq number', VALUE_OPTIONAL),
+                'skype'       => new external_value(PARAM_NOTAGS, 'skype id', VALUE_OPTIONAL),
+                'yahoo'       => new external_value(PARAM_NOTAGS, 'yahoo id', VALUE_OPTIONAL),
+                'aim'         => new external_value(PARAM_NOTAGS, 'aim id', VALUE_OPTIONAL),
+                'msn'         => new external_value(PARAM_NOTAGS, 'msn number', VALUE_OPTIONAL),
+                'department'  => new external_value(PARAM_TEXT, 'department', VALUE_OPTIONAL),
+                'institution' => new external_value(PARAM_TEXT, 'institution', VALUE_OPTIONAL),
+                'interests'   => new external_value(PARAM_TEXT, 'user interests (separated by commas)', VALUE_OPTIONAL),
+                'firstaccess' => new external_value(PARAM_INT, 'first access to the site (0 if never)', VALUE_OPTIONAL),
+                'lastaccess'  => new external_value(PARAM_INT, 'last access to the site (0 if never)', VALUE_OPTIONAL),
+                'description' => new external_value(PARAM_RAW, 'User profile description', VALUE_OPTIONAL),
+                'descriptionformat' => new external_value(PARAM_INT, 'User profile description format', VALUE_OPTIONAL),
+                'city'        => new external_value(PARAM_NOTAGS, 'Home city of the user', VALUE_OPTIONAL),
+                'url'         => new external_value(PARAM_URL, 'URL of the user', VALUE_OPTIONAL),
+                'country'     => new external_value(PARAM_ALPHA, 'Country code of the user, such as AU or CZ', VALUE_OPTIONAL),
+                'profileimageurlsmall' => new external_value(PARAM_URL, 'User image profile URL - small', VALUE_OPTIONAL),
+                'profileimageurl' => new external_value(PARAM_URL, 'User image profile URL - big', VALUE_OPTIONAL),
+                'customfields' => new external_multiple_structure(
+                    new external_single_structure(
+                        array(
+                            'type'  => new external_value(PARAM_ALPHANUMEXT, 'The type of the custom field'),
+                            'value' => new external_value(PARAM_RAW, 'The value of the custom field'),
+                            'name' => new external_value(PARAM_RAW, 'The name of the custom field'),
+                            'shortname' => new external_value(PARAM_RAW, 'The shortname of the custom field'),
+                        )
+                    ), 'User custom fields (also known as user profil fields)', VALUE_OPTIONAL),
+                'groups' => new external_multiple_structure(
+                    new external_single_structure(
+                        array(
+                            'id'  => new external_value(PARAM_INT, 'group id'),
+                            'name' => new external_value(PARAM_RAW, 'group name'),
+                            'description' => new external_value(PARAM_RAW, 'group description'),
+                        )
+                    ), 'user groups', VALUE_OPTIONAL),
+                'roles' => new external_multiple_structure(
+                    new external_single_structure(
+                        array(
+                            'roleid'       => new external_value(PARAM_INT, 'role id'),
+                            'name'         => new external_value(PARAM_RAW, 'role name'),
+                            'shortname'    => new external_value(PARAM_ALPHANUMEXT, 'role shortname'),
+                            'sortorder'    => new external_value(PARAM_INT, 'role sortorder')
+                        )
+                    ), 'user roles', VALUE_OPTIONAL),
+                'preferences' => new external_multiple_structure(
+                    new external_single_structure(
+                        array(
+                            'name'  => new external_value(PARAM_ALPHANUMEXT, 'The name of the preferences'),
+                            'value' => new external_value(PARAM_RAW, 'The value of the custom field'),
+                        )
+                ), 'User preferences', VALUE_OPTIONAL),
+                'enrolledcourses' => new external_multiple_structure(
+                    new external_single_structure(
+                        array(
+                            'id'  => new external_value(PARAM_INT, 'Id of the course'),
+                            'fullname' => new external_value(PARAM_RAW, 'Fullname of the course'),
+                            'shortname' => new external_value(PARAM_RAW, 'Shortname of the course')
+                        )
+                ), 'Courses where the user is enrolled - limited by which courses the user is able to see', VALUE_OPTIONAL),
+                'submitted' => new external_value(PARAM_BOOL, 'have they submitted their assignment'),
+                'requiregrading' => new external_value(PARAM_BOOL, 'is their submission waiting for grading'),
+                'groupid' => new external_value(PARAM_INT, 'for group assignments this is the group id', VALUE_OPTIONAL),
+                'groupname' => new external_value(PARAM_NOTAGS, 'for group assignments this is the group name', VALUE_OPTIONAL),
+            ))
+        );
+    }
 }
diff --git a/mod/assign/feedback/editpdf/classes/event/observer.php b/mod/assign/feedback/editpdf/classes/event/observer.php
new file mode 100644
index 00000000000..b9fd911ad5c
--- /dev/null
+++ b/mod/assign/feedback/editpdf/classes/event/observer.php
@@ -0,0 +1,66 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * An event observer.
+ *
+ * @package    assignfeedback_editpdf
+ * @copyright  2016 Damyon Wiese
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace assignfeedback_editpdf\event;
+
+/**
+ * Simple task to run the grade cron.
+ */
+class observer {
+
+    /**
+     * Listen to events and queue the submission for processing.
+     * @param \mod_assign\event\submission_created $event
+     */
+    public static function submission_created(\mod_assign\event\submission_created $event) {
+        global $DB;
+
+        $submissionid = $event->other['submissionid'];
+        $submissionattempt = $event->other['submissionattempt'];
+        $fields = array( 'submissionid' => $submissionid, 'submissionattempt' => $submissionattempt);
+        $record = (object) $fields;
+
+        $exists = $DB->get_records('assignfeedback_editpdf_queue', $fields);
+        if (!$exists) {
+            $DB->insert_record('assignfeedback_editpdf_queue', $record);
+        }
+    }
+
+    /**
+     * Listen to events and queue the submission for processing.
+     * @param \mod_assign\event\submission_updated $event
+     */
+    public static function submission_updated(\mod_assign\event\submission_updated $event) {
+        global $DB;
+
+        $submissionid = $event->other['submissionid'];
+        $submissionattempt = $event->other['submissionattempt'];
+        $fields = array( 'submissionid' => $submissionid, 'submissionattempt' => $submissionattempt);
+        $record = (object) $fields;
+
+        $exists = $DB->get_records('assignfeedback_editpdf_queue', $fields);
+        if (!$exists) {
+            $DB->insert_record('assignfeedback_editpdf_queue', $record);
+        }
+    }
+}
diff --git a/mod/assign/feedback/editpdf/classes/renderer.php b/mod/assign/feedback/editpdf/classes/renderer.php
index eca306de83e..b47834f1b61 100644
--- a/mod/assign/feedback/editpdf/classes/renderer.php
+++ b/mod/assign/feedback/editpdf/classes/renderer.php
@@ -118,10 +118,7 @@ class assignfeedback_editpdf_renderer extends plugin_renderer_base {
                                               array('id'=>$linkid, 'class'=>'btn', 'href'=>'#'));
         }
         $links = $launcheditorlink;
-
-        $links .= html_writer::tag('div',
-                                   get_string('unsavedchanges', 'assignfeedback_editpdf'),
-                                   array('class'=>'assignfeedback_editpdf_unsavedchanges warning'));
+        $html .= '<input type="hidden" name="assignfeedback_editpdf_haschanges" value="false"/>';
 
         $html .= html_writer::div($links, 'visibleifjs');
         $header = get_string('pluginname', 'assignfeedback_editpdf');
@@ -129,6 +126,7 @@ class assignfeedback_editpdf_renderer extends plugin_renderer_base {
         // Create the page navigation.
         $navigation1 = '';
         $navigation2 = '';
+        $navigation3 = '';
 
         // Pick the correct arrow icons for right to left mode.
         if (right_to_left()) {
@@ -156,6 +154,7 @@ class assignfeedback_editpdf_renderer extends plugin_renderer_base {
         $navigation2 .= $this->render_toolbar_button('comment_search', 'searchcomments', $this->get_shortcut('searchcomments'));
         $navigation2 = html_writer::div($navigation2, 'navigation-search', array('role'=>'navigation'));
 
+
         $toolbar1 = '';
         $toolbar2 = '';
         $toolbar3 = '';
@@ -210,7 +209,14 @@ class assignfeedback_editpdf_renderer extends plugin_renderer_base {
 
         $canvas = html_writer::div($loading, 'drawingcanvas');
         $canvas = html_writer::div($canvas, 'drawingregion');
-        $body .= html_writer::div($canvas, 'hideoverflow');
+        $changesmessage = html_writer::tag('div',
+                                   get_string('draftchangessaved', 'assignfeedback_editpdf'),
+                                   array('class'=>'assignfeedback_editpdf_unsavedchanges warning label label-info'));
+
+        $changesmessage = html_writer::div($changesmessage, 'unsaved-changes');
+        $canvas .= $changesmessage;
+
+        $body .= $canvas;
 
         $footer = '';
 
diff --git a/mod/assign/feedback/editpdf/classes/task/convert_submissions.php b/mod/assign/feedback/editpdf/classes/task/convert_submissions.php
new file mode 100644
index 00000000000..9a4e1a93b7e
--- /dev/null
+++ b/mod/assign/feedback/editpdf/classes/task/convert_submissions.php
@@ -0,0 +1,107 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * A scheduled task.
+ *
+ * @package    assignfeedback_editpdf
+ * @copyright  2016 Damyon Wiese
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace assignfeedback_editpdf\task;
+
+use core\task\scheduled_task;
+use assignfeedback_editpdf\document_services;
+use context_module;
+use assign;
+
+/**
+ * Simple task to run the grade cron.
+ */
+class convert_submissions extends scheduled_task {
+
+    /**
+     * Get a descriptive name for this task (shown to admins).
+     *
+     * @return string
+     */
+    public function get_name() {
+        return get_string('preparesubmissionsforannotation', 'assignfeedback_editpdf');
+    }
+
+    /**
+     * Do the job.
+     * Throw exceptions on errors (the job will be retried).
+     */
+    public function execute() {
+        global $CFG, $DB;
+
+        require_once($CFG->dirroot . '/mod/assign/locallib.php');
+
+        $records = $DB->get_records('assignfeedback_editpdf_queue');
+
+        $assignmentcache = array();
+
+        foreach ($records as $record) {
+            $submissionid = $record->submissionid;
+            $submission = $DB->get_record('assign_submission', array('id' => $submissionid), '*', IGNORE_MISSING);
+            if (!$submission) {
+                // Submission no longer exists.
+                $DB->delete_records('assignfeedback_editpdf_queue', array('id' => $record->id));
+                continue;
+            }
+
+            $assignmentid = $submission->assignment;
+            $attemptnumber = $record->submissionattempt;
+
+            if (empty($assignmentcache[$assignmentid])) {
+                $cm = get_coursemodule_from_instance('assign', $assignmentid, 0, false, MUST_EXIST);
+                $context = context_module::instance($cm->id);
+
+                $assignment = new assign($context, null, null);
+                $assignmentcache[$assignmentid] = $assignment;
+            } else {
+                $assignment = $assignmentcache[$assignmentid];
+            }
+
+            $users = array();
+            if ($submission->userid) {
+                array_push($users, $submission->userid);
+            } else {
+                $members = $assignment->get_submission_group_members($submission->groupid, true);
+
+                foreach ($members as $memberid) {
+                    array_push($users, $memberid);
+                }
+            }
+
+            mtrace('Convert ' . count($users) . ' submission attempt(s) for assignment ' . $assignmentid);
+            foreach ($users as $userid) {
+                document_services::get_page_images_for_attempt($assignment,
+                                                               $userid,
+                                                               $attemptnumber,
+                                                               true);
+                document_services::get_page_images_for_attempt($assignment,
+                                                               $userid,
+                                                               $attemptnumber,
+                                                               false);
+            }
+
+            $DB->delete_records('assignfeedback_editpdf_queue', array('id' => $record->id));
+        }
+    }
+
+}
diff --git a/mod/assign/feedback/editpdf/db/events.php b/mod/assign/feedback/editpdf/db/events.php
new file mode 100644
index 00000000000..b17285b8024
--- /dev/null
+++ b/mod/assign/feedback/editpdf/db/events.php
@@ -0,0 +1,36 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * EditPDF event handler definition.
+ *
+ * @package assignfeedback_editpdf
+ * @category event
+ * @copyright 2016 Damyon Wiese
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+// List of observers.
+$observers = array(
+    array(
+        'eventname'   => '\mod_assign\event\submission_created',
+        'callback'    => '\assignfeedback_editpdf\event\observer::submission_created',
+    ),
+    array(
+        'eventname'   => '\mod_assign\event\submission_updated',
+        'callback'    => '\assignfeedback_editpdf\event\observer::submission_updated',
+    ),
+);
diff --git a/mod/assign/feedback/editpdf/db/install.xml b/mod/assign/feedback/editpdf/db/install.xml
old mode 100644
new mode 100755
index 39af982056a..f8bdd557993
--- a/mod/assign/feedback/editpdf/db/install.xml
+++ b/mod/assign/feedback/editpdf/db/install.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<XMLDB PATH="mod/assign/feedback/editpdf/db" VERSION="20130926" COMMENT="XMLDB file for Moodle mod/assign/feedback/editpdf"
+<XMLDB PATH="mod/assign/feedback/editpdf/db" VERSION="20160216" COMMENT="XMLDB file for Moodle mod/assign/feedback/editpdf"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:noNamespaceSchemaLocation="../../../../../lib/xmldb/xmldb.xsd"
 >
@@ -59,5 +59,15 @@
         <KEY NAME="userid" TYPE="foreign" FIELDS="userid" REFTABLE="user" REFFIELDS="id"/>
       </KEYS>
     </TABLE>
+    <TABLE NAME="assignfeedback_editpdf_queue" COMMENT="Queue for processing.">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+        <FIELD NAME="submissionid" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="submissionattempt" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
+      </KEYS>
+    </TABLE>
   </TABLES>
-</XMLDB>
+</XMLDB>
\ No newline at end of file
diff --git a/mod/assign/feedback/editpdf/db/tasks.php b/mod/assign/feedback/editpdf/db/tasks.php
new file mode 100644
index 00000000000..a610addcb59
--- /dev/null
+++ b/mod/assign/feedback/editpdf/db/tasks.php
@@ -0,0 +1,44 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Definition of core scheduled tasks.
+ *
+ * The handlers defined on this file are processed and registered into
+ * the Moodle DB after any install or upgrade operation. All plugins
+ * support this.
+ *
+ * @package   core
+ * @category  task
+ * @copyright 2016 Damyon Wiese
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+/* List of handlers */
+
+$tasks = array(
+    array(
+        'classname' => 'assignfeedback_editpdf\task\convert_submissions',
+        'blocking' => 0,
+        'minute' => '*/15',
+        'hour' => '*',
+        'day' => '*',
+        'dayofweek' => '*',
+        'month' => '*'
+    ),
+);
diff --git a/mod/assign/feedback/editpdf/db/upgrade.php b/mod/assign/feedback/editpdf/db/upgrade.php
index 65861e88005..4cf87b46b0c 100644
--- a/mod/assign/feedback/editpdf/db/upgrade.php
+++ b/mod/assign/feedback/editpdf/db/upgrade.php
@@ -30,7 +30,9 @@ defined('MOODLE_INTERNAL') || die();
  * @return bool
  */
 function xmldb_assignfeedback_editpdf_upgrade($oldversion) {
-    global $CFG;
+    global $CFG, $DB;
+
+    $dbman = $DB->get_manager();
 
     // Moodle v2.8.0 release upgrade line.
     // Put any upgrade step following this.
@@ -41,5 +43,29 @@ function xmldb_assignfeedback_editpdf_upgrade($oldversion) {
     // Moodle v3.0.0 release upgrade line.
     // Put any upgrade step following this.
 
+    if ($oldversion < 2016021600) {
+
+        // Define table assignfeedback_editpdf_queue to be created.
+        $table = new xmldb_table('assignfeedback_editpdf_queue');
+
+        // Adding fields to table assignfeedback_editpdf_queue.
+        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
+        $table->add_field('submissionid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
+        $table->add_field('submissionattempt', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
+
+        // Adding keys to table assignfeedback_editpdf_queue.
+        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
+
+        // Conditionally launch create table for assignfeedback_editpdf_queue.
+        if (!$dbman->table_exists($table)) {
+            $dbman->create_table($table);
+        }
+
+        // Editpdf savepoint reached.
+        upgrade_plugin_savepoint(true, 2016021600, 'assignfeedback', 'editpdf');
+    }
+
+
+
     return true;
 }
diff --git a/mod/assign/feedback/editpdf/lang/en/assignfeedback_editpdf.php b/mod/assign/feedback/editpdf/lang/en/assignfeedback_editpdf.php
index 26a9850aecd..1b8fc754ef1 100644
--- a/mod/assign/feedback/editpdf/lang/en/assignfeedback_editpdf.php
+++ b/mod/assign/feedback/editpdf/lang/en/assignfeedback_editpdf.php
@@ -85,7 +85,8 @@ $string['test_notexecutable'] = 'The ghostscript points to a file that is not ex
 $string['test_ok'] = 'The ghostscript path appears to be OK - please check you can see the message in the image below';
 $string['toolbarbutton'] = '{$a->tool} {$a->shortcut}';
 $string['tool'] = 'Tool';
-$string['unsavedchanges'] = 'Unsaved changes';
 $string['viewfeedbackonline'] = 'View annotated PDF...';
 $string['white'] = 'White';
 $string['yellow'] = 'Yellow';
+$string['draftchangessaved'] = 'Draft annotations saved';
+$string['preparesubmissionsforannotation'] = 'Prepare submissions for annotation';
diff --git a/mod/assign/feedback/editpdf/locallib.php b/mod/assign/feedback/editpdf/locallib.php
index 7eddad1629e..b58757a5e21 100644
--- a/mod/assign/feedback/editpdf/locallib.php
+++ b/mod/assign/feedback/editpdf/locallib.php
@@ -168,21 +168,16 @@ class assign_feedback_editpdf extends assign_feedback_plugin {
             $attempt = $grade->attemptnumber;
         }
 
-        $files = document_services::list_compatible_submission_files_for_attempt($this->assignment, $userid, $attempt);
-        // Only show the editor if there was a compatible file submitted.
-        if (count($files)) {
+        $renderer = $PAGE->get_renderer('assignfeedback_editpdf');
 
-            $renderer = $PAGE->get_renderer('assignfeedback_editpdf');
+        $widget = $this->get_widget($userid, $grade, false);
 
-            $widget = $this->get_widget($userid, $grade, false);
-
-            $html = $renderer->render($widget);
-            $mform->addElement('static', 'editpdf', get_string('editpdf', 'assignfeedback_editpdf'), $html);
-            $mform->addHelpButton('editpdf', 'editpdf', 'assignfeedback_editpdf');
-            $mform->addElement('hidden', 'editpdf_source_userid', $userid);
-            $mform->setType('editpdf_source_userid', PARAM_INT);
-            $mform->setConstant('editpdf_source_userid', $userid);
-        }
+        $html = $renderer->render($widget);
+        $mform->addElement('static', 'editpdf', get_string('editpdf', 'assignfeedback_editpdf'), $html);
+        $mform->addHelpButton('editpdf', 'editpdf', 'assignfeedback_editpdf');
+        $mform->addElement('hidden', 'editpdf_source_userid', $userid);
+        $mform->setType('editpdf_source_userid', PARAM_INT);
+        $mform->setConstant('editpdf_source_userid', $userid);
     }
 
     /**
@@ -364,4 +359,12 @@ class assign_feedback_editpdf extends assign_feedback_plugin {
     public function get_file_areas() {
         return array(document_services::FINAL_PDF_FILEAREA => $this->get_name());
     }
+
+    /**
+     * This plugin will inject content into the review panel with javascript.
+     * @return bool true
+     */
+    public function supports_review_panel() {
+        return true;
+    }
 }
diff --git a/mod/assign/feedback/editpdf/styles.css b/mod/assign/feedback/editpdf/styles.css
index 2180dfb91e7..790ef7c22a7 100644
--- a/mod/assign/feedback/editpdf/styles.css
+++ b/mod/assign/feedback/editpdf/styles.css
@@ -12,10 +12,20 @@
     cursor: crosshair;
     background-repeat: no-repeat;
     background-color: #ccc;
+    margin-left: auto;
+    margin-right: auto;
+}
+.assignfeedback_editpdf_widget .moodle-dialogue-bd .drawingregion {
+    position: inherit;
 }
 .assignfeedback_editpdf_widget .drawingregion {
+    border: 1px solid #ccc;
+    left: 1em;
+    right: 1em;
+    top: 52px;
+    bottom: 0px;
+    position: absolute;
     overflow: auto;
-    width: 842px; /* A4 portrait should not need a horizontal scrollbar */
 }
 
 .assignfeedback_editpdf_widget {
@@ -32,18 +42,25 @@
     padding-left: 20px;
     padding-right: 20px;
     min-height: 50px;
+    height: 52px;
+    overflow: auto;
 }
 
 .moodle-dialogue-base .moodle-dialogue.assignfeedback_editpdf_widget .moodle-dialogue-bd {
     padding: 0px;
 }
 
-.assignfeedback_editpdf_unsavedchanges.haschanges{
-    display: block;
+.assignfeedback_editpdf_widget .assignfeedback_editpdf_unsavedchanges.haschanges{
+    display: inline-block;
 }
-.assignfeedback_editpdf_unsavedchanges {
+.assignfeedback_editpdf_widget .assignfeedback_editpdf_unsavedchanges {
     display: none;
-    margin-top: 1em;
+    position: absolute;
+    left: 20px;
+    top: 60px;
+}
+.dir-rtl .assignfeedback_editpdf_widget .assignfeedback_editpdf_unsavedchanges {
+    float: right;
 }
 .yui3-colourpicker-hidden,
 .yui3-commentsearch-hidden,
@@ -290,3 +307,31 @@ ul.assignfeedback_editpdf_menu {
     overflow: hidden;
     position: relative;
 }
+@media (max-width: 899px) {
+    .assignfeedback_editpdf_widget .pageheader {
+        height: 104px;
+    }
+    .assignfeedback_editpdf_widget .drawingregion {
+        top: 104px;
+    }
+}
+@media (max-width: 767px) {
+    .assignfeedback_editpdf_widget .drawingregion {
+        position: inherit;
+        margin-bottom: 1em;
+    }
+    .assignfeedback_editpdf_widget .pageheader {
+        height: 52px;
+    }
+    .assignfeedback_editpdf_widget .drawingregion {
+        top: 52px;
+    }
+}
+@media (max-width: 683px) {
+    .assignfeedback_editpdf_widget .pageheader {
+        height: 104px;
+    }
+    .assignfeedback_editpdf_widget .drawingregion {
+        top: 104px;
+    }
+}
diff --git a/mod/assign/feedback/editpdf/tests/behat/annotate_pdf.feature b/mod/assign/feedback/editpdf/tests/behat/annotate_pdf.feature
index b54baff41a7..9cab348cf75 100644
--- a/mod/assign/feedback/editpdf/tests/behat/annotate_pdf.feature
+++ b/mod/assign/feedback/editpdf/tests/behat/annotate_pdf.feature
@@ -50,11 +50,9 @@ Feature: In an assignment, teacher can annotate PDF files during grading
     And I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
+    And I follow "View all submissions"
     And I click on "Edit" "link" in the "Submitted for grading" "table_row"
     And I click on "Grade" "link" in the "Submitted for grading" "table_row"
-    And I follow "Launch PDF editor..."
-    And I change window size to "large"
     And I should see "Page 1 of 3"
     And I click on ".navigate-next-button" "css_element"
     And I should see "Page 2 of 3"
@@ -62,11 +60,10 @@ Feature: In an assignment, teacher can annotate PDF files during grading
     And I click on ".linebutton" "css_element"
     And I click on ".commentcolourbutton" "css_element"
     And I click on "//img[@alt=\"Blue\"]/parent::button" "xpath_element"
-    And I change window size to "medium"
     And I wait until the page is ready
-    And I click on "Close" "button"
     And I press "Save changes"
-    And I should see "The grade changes were saved"
+    And I wait until the page is ready
+    And I should see "The changes to the grade and feedback were saved"
 
   @javascript
   Scenario: Submit a PDF file as a student in a team and annotate the PDF as a teacher
@@ -129,17 +126,15 @@ Feature: In an assignment, teacher can annotate PDF files during grading
     And I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
+    And I follow "View all submissions"
     And I click on "Edit" "link" in the "Student 2" "table_row"
     And I click on "Grade" "link" in the "Student 2" "table_row"
-    And I follow "Launch PDF editor..."
-    And I change window size to "large"
-    And I click on ".stampbutton" "css_element"
-    And I click on ".drawingcanvas" "css_element"
-    And I change window size to "medium"
-    And I wait until the page is ready
-    And I click on "Close" "button"
+    And I click on ".linebutton" "css_element"
+    And I draw on the pdf
     And I press "Save changes"
-    And I should see "The grade changes were saved"
-    And I press "Continue"
+    And I should see "The changes to the grade and feedback were saved"
+    And I press "Ok"
+    And I click on "Edit settings" "link"
+    And I follow "Test assignment name"
+    And I follow "View all submissions"
     And I should see "View annotated PDF..." in the "student2@example.com" "table_row"
diff --git a/mod/assign/feedback/editpdf/tests/behat/behat_assignfeedback_editpdf.php b/mod/assign/feedback/editpdf/tests/behat/behat_assignfeedback_editpdf.php
index a35c867e3fa..9e10ee2b32a 100644
--- a/mod/assign/feedback/editpdf/tests/behat/behat_assignfeedback_editpdf.php
+++ b/mod/assign/feedback/editpdf/tests/behat/behat_assignfeedback_editpdf.php
@@ -49,4 +49,33 @@ class behat_assignfeedback_editpdf extends behat_base {
             throw new \Moodle\BehatExtension\Exception\SkippedException;
         }
     }
+
+    /**
+     * Draw on the pdf.
+     *
+     * @When /^I draw on the pdf$/
+     */
+    public function i_draw_on_the_pdf() {
+        $js = ' (function() {
+    var instance = M.assignfeedback_editpdf.instance;
+    var event = { clientX: 100, clientY: 250, preventDefault: function() {} };
+    instance.edit_start(event);
+}()); ';
+        $this->getSession()->executeScript($js);
+        sleep(1);
+        $js = ' (function() {
+    var instance = M.assignfeedback_editpdf.instance;
+    var event = { clientX: 150, clientY: 275, preventDefault: function() {} };
+    instance.edit_move(event);
+}()); ';
+        $this->getSession()->executeScript($js);
+        sleep(1);
+        $js = ' (function() {
+    var instance = M.assignfeedback_editpdf.instance;
+    var event = { clientX: 200, clientY: 300, preventDefault: function() {} };
+    instance.edit_end(event);
+}()); ';
+        $this->getSession()->executeScript($js);
+        sleep(1);
+    }
 }
diff --git a/mod/assign/feedback/editpdf/tests/behat/group_annotations.feature b/mod/assign/feedback/editpdf/tests/behat/group_annotations.feature
index 9046d797347..f397c61d231 100644
--- a/mod/assign/feedback/editpdf/tests/behat/group_annotations.feature
+++ b/mod/assign/feedback/editpdf/tests/behat/group_annotations.feature
@@ -50,26 +50,22 @@ Feature: In a group assignment, teacher can annotate PDF files for all users
     And I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
+    And I follow "View all submissions"
     And I click on "Grade" "link" in the "Submitted for grading" "table_row"
-    And I follow "Launch PDF editor..."
-    And I change window size to "large"
     And I click on ".navigate-next-button" "css_element"
     And I click on ".stampbutton" "css_element"
-    And I click on ".drawingcanvas" "css_element"
-    And I change window size to "medium"
+    And I draw on the pdf
     And I wait until the page is ready
-    And I click on "Close" "button"
     And I press "Save changes"
-    And I should see "The grade changes were saved"
+    And I should see "The changes to the grade and feedback were saved"
+    And I press "Ok"
+    And I click on "Edit settings" "link"
     And I log out
     And I log in as "student1"
     And I follow "Course 1"
     And I follow "Test assignment name"
     When I follow "View annotated PDF..."
-    And I change window size to "large"
     Then I should see "Annotate PDF"
-    And I change window size to "medium"
     And I wait until the page is ready
     And I click on "Close" "button"
     And I log out
diff --git a/mod/assign/feedback/editpdf/version.php b/mod/assign/feedback/editpdf/version.php
index a1880aabb4e..613e06ab91b 100644
--- a/mod/assign/feedback/editpdf/version.php
+++ b/mod/assign/feedback/editpdf/version.php
@@ -24,7 +24,7 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-$plugin->version   = 2015111600;
+$plugin->version   = 2016021601;
 $plugin->requires  = 2015111000;
 $plugin->component = 'assignfeedback_editpdf';
 
diff --git a/mod/assign/feedback/editpdf/yui/build/moodle-assignfeedback_editpdf-editor/moodle-assignfeedback_editpdf-editor-debug.js b/mod/assign/feedback/editpdf/yui/build/moodle-assignfeedback_editpdf-editor/moodle-assignfeedback_editpdf-editor-debug.js
index 311826c55bb..16a50edfcdf 100644
--- a/mod/assign/feedback/editpdf/yui/build/moodle-assignfeedback_editpdf-editor/moodle-assignfeedback_editpdf-editor-debug.js
+++ b/mod/assign/feedback/editpdf/yui/build/moodle-assignfeedback_editpdf-editor/moodle-assignfeedback_editpdf-editor-debug.js
@@ -42,6 +42,7 @@ var AJAXBASE = M.cfg.wwwroot + '/mod/assign/feedback/editpdf/ajax.php',
         ANNOTATIONCOLOURBUTTON :  '.annotationcolourbutton',
         DELETEANNOTATIONBUTTON : '.deleteannotationbutton',
         UNSAVEDCHANGESDIV : '.assignfeedback_editpdf_unsavedchanges',
+        UNSAVEDCHANGESINPUT : 'input[name="assignfeedback_editpdf_haschanges"]',
         STAMPSBUTTON : '.currentstampbutton',
         DIALOGUE : '.' + CSS.DIALOGUE
     },
@@ -3097,6 +3098,15 @@ EDITOR.prototype = {
      */
     dialogue : null,
 
+    /**
+     * The panel used for all action menu displays.
+     *
+     * @property type
+     * @type Y.Node
+     * @protected
+     */
+    panel : null,
+
     /**
      * The number of pages in the pdf.
      *
@@ -3258,11 +3268,24 @@ EDITOR.prototype = {
             link.on('click', this.link_handler, this);
             link.on('key', this.link_handler, 'down:13', this);
 
-            this.currentedit.start = false;
-            this.currentedit.end = false;
-            if (!this.get('readonly')) {
-                this.quicklist = new M.assignfeedback_editpdf.quickcommentlist(this);
-            }
+            // We call the amd module to see if we can take control of the review panel.
+            require(['mod_assign/grading_review_panel'], function(ReviewPanelManager) {
+                var panelManager = new ReviewPanelManager();
+
+                var panel = panelManager.getReviewPanel('assignfeedback_editpdf');
+                if (panel) {
+                    panel = Y.one(panel);
+                    panel.empty();
+                    link.ancestor('.fitem').hide();
+                    this.open_in_panel(panel);
+                }
+                this.currentedit.start = false;
+                this.currentedit.end = false;
+                if (!this.get('readonly')) {
+                    this.quicklist = new M.assignfeedback_editpdf.quickcommentlist(this);
+                }
+            }.bind(this));
+
         }
     },
 
@@ -3341,6 +3364,36 @@ EDITOR.prototype = {
         return newpoint;
     },
 
+    /**
+     * Open the edit-pdf editor in the panel in the page instead of a popup.
+     * @method open_in_panel
+     */
+    open_in_panel : function(panel) {
+        var drawingcanvas, drawingregion;
+
+        this.panel = panel;
+        panel.append(this.get('body'));
+        panel.addClass(CSS.DIALOGUE);
+
+        this.loadingicon = this.get_dialogue_element(SELECTOR.LOADINGICON);
+
+        drawingcanvas = this.get_dialogue_element(SELECTOR.DRAWINGCANVAS);
+        this.graphic = new Y.Graphic({render : drawingcanvas});
+
+        drawingregion = this.get_dialogue_element(SELECTOR.DRAWINGREGION);
+        drawingregion.on('scroll', this.move_canvas, this);
+
+        if (!this.get('readonly')) {
+            drawingcanvas.on('gesturemovestart', this.edit_start, null, this);
+            drawingcanvas.on('gesturemove', this.edit_move, null, this);
+            drawingcanvas.on('gesturemoveend', this.edit_end, null, this);
+
+            this.refresh_button_state();
+        }
+
+        this.load_all_pages();
+    },
+
     /**
      * Called to open the pdf editing dialogue.
      * @method link_handler
@@ -3496,14 +3549,18 @@ EDITOR.prototype = {
         try {
             data = Y.JSON.parse(responsetext);
             if (data.error || !data.pagecount) {
-                this.dialogue.hide();
+                if (this.dialogue) {
+                    this.dialogue.hide();
+                }
                 // Display alert dialogue.
                 error = new M.core.alert({ message: M.util.get_string('cannotopenpdf', 'assignfeedback_editpdf') });
                 error.show();
                 return;
             }
         } catch (e) {
-            this.dialogue.hide();
+            if (this.dialogue) {
+                this.dialogue.hide();
+            }
             // Display alert dialogue.
             error = new M.core.alert({ title: M.util.get_string('cannotopenpdf', 'assignfeedback_editpdf')});
             error.show();
@@ -3734,7 +3791,11 @@ EDITOR.prototype = {
      * @method get_dialogue_element
      */
     get_dialogue_element : function(selector) {
-        return this.dialogue.get('boundingBox').one(selector);
+        if (this.panel) {
+            return this.panel.one(selector);
+        } else {
+            return this.dialogue.get('boundingBox').one(selector);
+        }
     },
 
     /**
@@ -3915,10 +3976,12 @@ EDITOR.prototype = {
     resize : function() {
         var drawingregion, drawregionheight;
 
-        if (!this.dialogue.get('visible')) {
-            return;
+        if (this.dialogue) {
+            if (!this.dialogue.get('visible')) {
+                return;
+            }
+            this.dialogue.centerDialogue();
         }
-        this.dialogue.centerDialogue();
 
         // Make sure the dialogue box is not bigger than the max height of the viewport.
         drawregionheight = Y.one('body').get('winHeight') - 120; // Space for toolbar + titlebar.
@@ -3926,7 +3989,9 @@ EDITOR.prototype = {
             drawregionheight = 100;
         }
         drawingregion = this.get_dialogue_element(SELECTOR.DRAWINGREGION);
-        drawingregion.setStyle('maxHeight', drawregionheight +'px');
+        if (this.dialogue) {
+            drawingregion.setStyle('maxHeight', drawregionheight +'px');
+        }
         this.redraw();
         return true;
     },
@@ -3985,8 +4050,16 @@ EDITOR.prototype = {
                         if (jsondata.error) {
                             return new M.core.ajaxException(jsondata);
                         }
-                        Y.one('#' + this.get('linkid')).siblings(SELECTOR.UNSAVEDCHANGESDIV)
-                            .item(0).addClass('haschanges');
+                        Y.one(SELECTOR.UNSAVEDCHANGESINPUT).set('value', 'true');
+                        Y.one(SELECTOR.UNSAVEDCHANGESDIV).setStyle('opacity', 1);
+                        Y.one(SELECTOR.UNSAVEDCHANGESDIV).setStyle('display', 'inline-block');
+                        Y.one(SELECTOR.UNSAVEDCHANGESDIV).transition({
+                            duration: 1,
+                            delay: 2,
+                            opacity: 0
+                        }, function() {
+                            Y.one(SELECTOR.UNSAVEDCHANGESDIV).setStyle('display', 'none');
+                        });
                     } catch (e) {
                         return new M.core.exception(e);
                     }
@@ -4229,7 +4302,8 @@ M.assignfeedback_editpdf.editor = M.assignfeedback_editpdf.editor || {};
  * @param {Object} params
  */
 M.assignfeedback_editpdf.editor.init = M.assignfeedback_editpdf.editor.init || function(params) {
-    return new EDITOR(params);
+    M.assignfeedback_editpdf.instance =  new EDITOR(params);
+    return M.assignfeedback_editpdf.instance;
 };
 
 
@@ -4243,6 +4317,7 @@ M.assignfeedback_editpdf.editor.init = M.assignfeedback_editpdf.editor.init || f
         "json",
         "event-move",
         "event-resize",
+        "transition",
         "querystring-stringify-simple",
         "moodle-core-notification-dialog",
         "moodle-core-notification-exception",
diff --git a/mod/assign/feedback/editpdf/yui/build/moodle-assignfeedback_editpdf-editor/moodle-assignfeedback_editpdf-editor-min.js b/mod/assign/feedback/editpdf/yui/build/moodle-assignfeedback_editpdf-editor/moodle-assignfeedback_editpdf-editor-min.js
index eccd7d0a494..c4c9cff31eb 100644
--- a/mod/assign/feedback/editpdf/yui/build/moodle-assignfeedback_editpdf-editor/moodle-assignfeedback_editpdf-editor-min.js
+++ b/mod/assign/feedback/editpdf/yui/build/moodle-assignfeedback_editpdf-editor/moodle-assignfeedback_editpdf-editor-min.js
@@ -1,8 +1,8 @@
-YUI.add("moodle-assignfeedback_editpdf-editor",function(e,t){var n=M.cfg.wwwroot+"/mod/assign/feedback/editpdf/ajax.php",r=M.cfg.wwwroot+"/mod/assign/feedback/editpdf/ajax_progress.php",i={DIALOGUE:"assignfeedback_editpdf_widget"},s={PREVIOUSBUTTON:".navigate-previous-button",NEXTBUTTON:" .navigate-next-button",SEARCHCOMMENTSBUTTON:".searchcommentsbutton",SEARCHFILTER:".assignfeedback_editpdf_commentsearch input",SEARCHCOMMENTSLIST:".assignfeedback_editpdf_commentsearch ul",PAGESELECT:".navigate-page-select",LOADINGICON:".loading",PROGRESSBARCONTAINER:".progress-info.progress-striped",DRAWINGREGION:".drawingregion",DRAWINGCANVAS:".drawingcanvas",SAVE:".savebutton",COMMENTCOLOURBUTTON:".commentcolourbutton",COMMENTMENU:".commentdrawable a",ANNOTATIONCOLOURBUTTON:".annotationcolourbutton",DELETEANNOTATIONBUTTON:".deleteannotationbutton",UNSAVEDCHANGESDIV:".assignfeedback_editpdf_unsavedchanges",STAMPSBUTTON:".currentstampbutton",DIALOGUE:"."+i.DIALOGUE},o="rgba(200, 200, 255, 0.9)",u="rgba(200, 200, 255, 0.5)",a="rgb(51, 51, 51)",f={white:"rgb(255,255,255)",yellow:"rgb(255,236,174)",red:"rgb(249,181,179)",green:"rgb(214,234,178)",blue:"rgb(203,217,237)",clear:"rgba(255,255,255, 0)"},l={white:"rgb(255,255,255)",yellow:"rgb(255,207,53)",red:"rgb(239,69,64)",green:"rgb(152,202,62)",blue:"rgb(125,159,211)",black:"rgb(51,51,51)"},c=300,h={comment:".commentbutton",pen:".penbutton",line:".linebutton",rectangle:".rectanglebutton",oval:".ovalbutton",stamp:".stampbutton",select:".selectbutton",highlight:".highlightbutton"},p=4,d=function(e,t){this.x=parseInt(e,10),this.y=parseInt(t,10),this.clip=function(e){return this.x<e.x&&(this.x=e.x),this.x>e.x+e.width&&(this.x=e.x+e.width),this.y<e.y&&(this.y=e.y),this.y>e.y+e.height&&(this.y=e.y+e.height),this}};M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.point=d;var v=function(e,t,n,r){this.x=e,this.y=t,this.width=n,this.height=r,this.bound=function(e){var t=0,n=0,r=0,i=0,s=0,o;for(s=0;s<e.length;s++){o=e[s];if(o.x<t||s===0)t=o.x;if(o.x>n||s===0)n=o.x;if(o.y<r||s===0)r=o.y;if(o.y>i||s===0)i=o.y}return this.x=t,this.y=r,this.width=n-t,this.height=i-r,this},this.has_min_width=function(){return this.width>=5},this.has_min_height=function(){return this.height>=5},this.set_min_width=function(){this.width=5},this.set_min_height=function(){this.height=5}};M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.rect=v;var m=function(){this.start=!1,this.end=!1,this.starttime=0,this.annotationstart=!1,this.tool="comment",this.commentcolour="yellow",this.annotationcolour="red",this.stamp="",this.path=[]};M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.edit=m;var g=function(e){this.editor=e,this.shapes=[],this.nodes=[],this.erase=function(){if(this.shapes)while(this.shapes.length>0)this.editor.graphic.removeShape(this.shapes.pop());if(this.nodes)while(this.nodes.length>0)this.nodes.pop().remove()},this.scroll_update=function(e,t){var n,r,i;for(n=0;n<this.nodes.length;n++)r=this.nodes[n].getData("x"),i=this.nodes[n].getData("y"),r!==undefined&&i!==undefined&&(this.nodes[n].setX(parseInt(r,10)-e),this.nodes[n].setY(parseInt(i,10)-t))},this.store_position=function(e,t,n){var r,i,o;r=this.editor.get_dialogue_element(s.DRAWINGREGION),i=parseInt(r.get("scrollLeft"),10),o=parseInt(r.get("scrollTop"),10),e.setData("x",t+i),e.setData("y",n+o)}};M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.drawable=g;var y=function(e){y.superclass.constructor.apply(this,[e])};y.NAME="annotation",y.ATTRS={},e.extend(y,e.Base,{editor:null,gradeid:0,pageno:0,x:0,y:0,endx:0,endy:0,path:"",type:"rect",colour:"red",drawable:!1,initializer:function(e){this.editor=e.editor||null,this.gradeid=parseInt(e.gradeid,10)||0,this.pageno=parseInt(e.pageno,10)||0,this.x=parseInt(e.x,10)||0,this.y=parseInt(e.y,10)||0,this.endx=parseInt(e.endx,10)||0,this.endy=parseInt(e.endy,10)||0,this.path=e.path||"",this.type=e.type||"rect",this.colour=e.colour||"red",this.drawable=!1},clean:function(){return{gradeid:this.gradeid,x:parseInt(this.x,10),y:parseInt(this.y,10),endx:parseInt(this.endx,10),endy:parseInt(this.endy,10),type:this.type,path:this.path,pageno:this.pageno,colour:this.colour}},draw_highlight:function(){var t,n=this.editor.get_dialogue_element(s.DRAWINGREGION),r=this.editor.get_dialogue_element(s.DRAWINGCANVAS).getXY(),i;if(this.editor.currentannotation===this){t=new M.assignfeedback_editpdf.rect,t.bound([new M.assignfeedback_editpdf.point(this.x,this.y),new M.assignfeedback_editpdf.point(this.endx,this.endy)]),i=this.editor.graphic.addShape({type:e.Rect,width:t.width,height:t.height,stroke:{weight:p,color:o},fill:{color:u},x:t.x,y:t.y}),this.drawable.shapes.push(i);var a=e.Node.create('<img src="'+M.util.image_url("trash","assignfeedback_editpdf")+'"/>'),f=e.Node.create('<a href="#" role="button"></a>');a.setAttrs({alt:M.util.get_string("deleteannotation","assignfeedback_editpdf")}),a.setStyles({backgroundColor:"white"}),f.addClass("deleteannotationbutton"),f.append(a),n.append(f),f.setData("annotation",this),f.setStyle("zIndex","200"),f.on("click",this.remove,this),f.on("key",this.remove,"space,enter",this),f.setX(r[0]+t.x+t.width-18),f.setY(r[1]+t.y+6),this.drawable.nodes.push(f)}return this.drawable},draw:function(){return this.draw_highlight(),this.drawable},remove:function(e){var t,n;e.preventDefault(),t=this.editor.pages[this.editor.currentpage].annotations;for(n=0;n<t.length;n++)if(t[n]===this){t.splice(n,1),this.drawable&&this.drawable.erase(),this.editor.currentannotation=!1,this.editor.save_current_page();return}},move:function(t,n){var r=t-this.x,i=n-this.y,s,o,u,a,f;this.x+=r,this.y+=i,this.endx+=r,this.endy+=i,this.path&&(s=[],o=this.path.split(":"),e.each(o,function(e){u=e.split(","),a=parseInt(u[0],10),f=parseInt(u[1],10),s.push(a+r+","+(f+i))}),this.path=s.join(":")),this.drawable&&this.drawable.erase(),this.editor.drawables.push(this.draw())},draw_current_edit:function(e)
-{var t=e&&!1;return t},init_from_edit:function(e){var t=new M.assignfeedback_editpdf.rect;return t.bound([e.start,e.end]),this.gradeid=this.editor.get("gradeid"),this.pageno=this.editor.currentpage,this.x=t.x,this.y=t.y,this.endx=t.x+t.width,this.endy=t.y+t.height,this.colour=e.annotationcolour,this.path="",t.has_min_width()&&t.has_min_height()}}),M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.annotation=y;var b=function(e){b.superclass.constructor.apply(this,[e])};b.NAME="annotationline",b.ATTRS={},e.extend(b,M.assignfeedback_editpdf.annotation,{draw:function(){var t,n;return t=new M.assignfeedback_editpdf.drawable(this.editor),n=this.editor.graphic.addShape({type:e.Path,fill:!1,stroke:{weight:p,color:l[this.colour]}}),n.moveTo(this.x,this.y),n.lineTo(this.endx,this.endy),n.end(),t.shapes.push(n),this.drawable=t,b.superclass.draw.apply(this)},draw_current_edit:function(t){var n=new M.assignfeedback_editpdf.drawable(this.editor),r;return r=this.editor.graphic.addShape({type:e.Path,fill:!1,stroke:{weight:p,color:l[t.annotationcolour]}}),r.moveTo(t.start.x,t.start.y),r.lineTo(t.end.x,t.end.y),r.end(),n.shapes.push(r),n},init_from_edit:function(e){return this.gradeid=this.editor.get("gradeid"),this.pageno=this.editor.currentpage,this.x=e.start.x,this.y=e.start.y,this.endx=e.end.x,this.endy=e.end.y,this.colour=e.annotationcolour,this.path="",this.endx-this.x!==0||this.endy-this.y!==0}}),M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.annotationline=b;var w=function(e){w.superclass.constructor.apply(this,[e])};w.NAME="annotationrectangle",w.ATTRS={},e.extend(w,M.assignfeedback_editpdf.annotation,{draw:function(){var t,n,r;return t=new M.assignfeedback_editpdf.drawable(this.editor),n=new M.assignfeedback_editpdf.rect,n.bound([new M.assignfeedback_editpdf.point(this.x,this.y),new M.assignfeedback_editpdf.point(this.endx,this.endy)]),r=this.editor.graphic.addShape({type:e.Rect,width:n.width,height:n.height,stroke:{weight:p,color:l[this.colour]},x:n.x,y:n.y}),t.shapes.push(r),this.drawable=t,w.superclass.draw.apply(this)},draw_current_edit:function(t){var n=new M.assignfeedback_editpdf.drawable(this.editor),r,i;return i=new M.assignfeedback_editpdf.rect,i.bound([new M.assignfeedback_editpdf.point(t.start.x,t.start.y),new M.assignfeedback_editpdf.point(t.end.x,t.end.y)]),i.has_min_width()||i.set_min_width(),i.has_min_height()||i.set_min_height(),r=this.editor.graphic.addShape({type:e.Rect,width:i.width,height:i.height,stroke:{weight:p,color:l[t.annotationcolour]},x:i.x,y:i.y}),n.shapes.push(r),n}}),M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.annotationrectangle=w;var E=function(e){E.superclass.constructor.apply(this,[e])};E.NAME="annotationoval",E.ATTRS={},e.extend(E,M.assignfeedback_editpdf.annotation,{draw:function(){var t,n,r;return t=new M.assignfeedback_editpdf.drawable(this.editor),n=new M.assignfeedback_editpdf.rect,n.bound([new M.assignfeedback_editpdf.point(this.x,this.y),new M.assignfeedback_editpdf.point(this.endx,this.endy)]),r=this.editor.graphic.addShape({type:e.Ellipse,width:n.width,height:n.height,stroke:{weight:p,color:l[this.colour]},x:n.x,y:n.y}),t.shapes.push(r),this.drawable=t,E.superclass.draw.apply(this)},draw_current_edit:function(t){var n=new M.assignfeedback_editpdf.drawable(this.editor),r,i;return i=new M.assignfeedback_editpdf.rect,i.bound([new M.assignfeedback_editpdf.point(t.start.x,t.start.y),new M.assignfeedback_editpdf.point(t.end.x,t.end.y)]),i.has_min_width()||i.set_min_width(),i.has_min_height()||i.set_min_height(),r=this.editor.graphic.addShape({type:e.Ellipse,width:i.width,height:i.height,stroke:{weight:p,color:l[t.annotationcolour]},x:i.x,y:i.y}),n.shapes.push(r),n}}),M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.annotationoval=E;var S=function(e){S.superclass.constructor.apply(this,[e])};S.NAME="annotationpen",S.ATTRS={},e.extend(S,M.assignfeedback_editpdf.annotation,{draw:function(){var t,n,r,i,s;return t=new M.assignfeedback_editpdf.drawable(this.editor),n=this.editor.graphic.addShape({type:e.Path,fill:!1,stroke:{weight:p,color:l[this.colour]}}),r=!0,i=this.path.split(":"),e.each(i,function(e){s=e.split(","),r?(n.moveTo(s[0],s[1]),r=!1):n.lineTo(s[0],s[1])},this),n.end(),t.shapes.push(n),this.drawable=t,S.superclass.draw.apply(this)},draw_current_edit:function(t){var n=new M.assignfeedback_editpdf.drawable(this.editor),r,i;return r=this.editor.graphic.addShape({type:e.Path,fill:!1,stroke:{weight:p,color:l[t.annotationcolour]}}),i=!0,e.each(t.path,function(e){i?(r.moveTo(e.x,e.y),i=!1):r.lineTo(e.x,e.y)},this),r.end(),n.shapes.push(r),n},init_from_edit:function(e){var t=new M.assignfeedback_editpdf.rect,n=[],r=0;t.bound(e.path);for(r=0;r<e.path.length;r++)n.push(parseInt(e.path[r].x,10)+","+parseInt(e.path[r].y,10));return this.gradeid=this.editor.get("gradeid"),this.pageno=this.editor.currentpage,this.x=t.x,this.y=t.y,this.endx=t.x+t.width,this.endy=t.y+t.height,this.colour=e.annotationcolour,this.path=n.join(":"),t.has_min_width()||t.has_min_height()}}),M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.annotationpen=S;var x=function(e){x.superclass.constructor.apply(this,[e])};x.NAME="annotationhighlight",x.ATTRS={},e.extend(x,M.assignfeedback_editpdf.annotation,{draw:function(){var t,n,r,i;return t=new M.assignfeedback_editpdf.drawable(this.editor),r=new M.assignfeedback_editpdf.rect,r.bound([new M.assignfeedback_editpdf.point(this.x,this.y),new M.assignfeedback_editpdf.point(this.endx,this.endy)]),i=l[this.colour],i=i.replace("rgb","rgba"),i=i.replace(")",",0.5)"),n=this.editor.graphic.addShape({type:e.Rect,width:r.width,height:r.height,stroke:!1,fill:{color:i},x:r.x,y:r.y}),t.shapes.push(n),this.drawable=t,x.superclass.draw.apply(this)},draw_current_edit:function(t){var n=new M.assignfeedback_editpdf.drawable(this.editor),r,i,s;return i=new M.assignfeedback_editpdf.rect,i.bound([new M.assignfeedback_editpdf
-.point(t.start.x,t.start.y),new M.assignfeedback_editpdf.point(t.end.x,t.end.y)]),i.has_min_width()||i.set_min_width(),s=l[t.annotationcolour],s=s.replace("rgb","rgba"),s=s.replace(")",",0.5)"),r=this.editor.graphic.addShape({type:e.Rect,width:i.width,height:16,stroke:!1,fill:{color:s},x:i.x,y:t.start.y}),n.shapes.push(r),n},init_from_edit:function(e){var t=new M.assignfeedback_editpdf.rect;return t.bound([e.start,e.end]),this.gradeid=this.editor.get("gradeid"),this.pageno=this.editor.currentpage,this.x=t.x,this.y=e.start.y,this.endx=t.x+t.width,this.endy=e.start.y+16,this.colour=e.annotationcolour,this.page="",t.has_min_width()}}),M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.annotationhighlight=x;var T=function(e){T.superclass.constructor.apply(this,[e])};T.NAME="annotationstamp",T.ATTRS={},e.extend(T,M.assignfeedback_editpdf.annotation,{draw:function(){var t=new M.assignfeedback_editpdf.drawable(this.editor),n=this.editor.get_dialogue_element(s.DRAWINGREGION),r,i;return i=this.editor.get_window_coordinates(new M.assignfeedback_editpdf.point(this.x,this.y)),r=e.Node.create("<div/>"),r.setStyles({position:"absolute",display:"inline-block",backgroundImage:"url("+this.editor.get_stamp_image_url(this.path)+")",width:this.endx-this.x,height:this.endy-this.y,backgroundSize:"100% 100%",zIndex:50}),n.append(r),r.setX(i.x),r.setY(i.y),t.store_position(r,i.x,i.y),r.on("gesturemovestart",this.editor.edit_start,null,this.editor),r.on("gesturemove",this.editor.edit_move,null,this.editor),r.on("gesturemoveend",this.editor.edit_end,null,this.editor),t.nodes.push(r),this.drawable=t,T.superclass.draw.apply(this)},draw_current_edit:function(t){var n=new M.assignfeedback_editpdf.rect,r=new M.assignfeedback_editpdf.drawable(this.editor),i=this.editor.get_dialogue_element(s.DRAWINGREGION),o,u;return n.bound([t.start,t.end]),u=this.editor.get_window_coordinates(new M.assignfeedback_editpdf.point(n.x,n.y)),o=e.Node.create("<div/>"),o.setStyles({position:"absolute",display:"inline-block",backgroundImage:"url("+this.editor.get_stamp_image_url(t.stamp)+")",width:n.width,height:n.height,backgroundSize:"100% 100%",zIndex:50}),i.append(o),o.setX(u.x),o.setY(u.y),r.store_position(o,u.x,u.y),r.nodes.push(o),r},init_from_edit:function(e){var t=new M.assignfeedback_editpdf.rect;return t.bound([e.start,e.end]),t.width<40&&(t.width=40),t.height<40&&(t.height=40),this.gradeid=this.editor.get("gradeid"),this.pageno=this.editor.currentpage,this.x=t.x,this.y=t.y,this.endx=t.x+t.width,this.endy=t.y+t.height,this.colour=e.annotationcolour,this.path=e.stamp,!0},move:function(e,t){var n=e-this.x,r=t-this.y;this.x+=n,this.y+=r,this.endx+=n,this.endy+=r,this.drawable&&this.drawable.erase(),this.editor.drawables.push(this.draw())}}),M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.annotationstamp=T;var N="Dropdown menu",C;C=function(e){e.draggable=!1,e.centered=!1,e.width="auto",e.visible=!1,e.footerContent="",C.superclass.constructor.apply(this,[e])},e.extend(C,M.core.dialogue,{initializer:function(t){var n,r,i,s;C.superclass.initializer.call(this,t),s=this.get("boundingBox"),s.addClass("assignfeedback_editpdf_dropdown"),n=this.get("buttonNode"),r=this.bodyNode,i=e.Node.create("<h3/>"),i.addClass("accesshide"),i.setHTML(this.get("headerText")),r.prepend(i),r.on("clickoutside",function(e){this.get("visible")&&e.target.get("id")!==n.get("id")&&e.target.ancestor().get("id")!==n.get("id")&&(e.preventDefault(),this.hide())},this),n.on("click",function(e){e.preventDefault(),this.show()},this),n.on("key",this.show,"enter,space",this)},show:function(){var t=this.get("buttonNode"),n=C.superclass.show.call(this);return this.align(t,[e.WidgetPositionAlign.TL,e.WidgetPositionAlign.BL]),n}},{NAME:N,ATTRS:{headerText:{value:""},buttonNode:{value:null}}}),e.Base.modifyAttrs(C,{modal:{getter:function(){return!1}}}),M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.dropdown=C;var k="Colourpicker",L;L=function(e){L.superclass.constructor.apply(this,[e])},e.extend(L,M.assignfeedback_editpdf.dropdown,{initializer:function(t){var n=e.Node.create('<ul role="menu" class="assignfeedback_editpdf_menu"/>'),r;e.each(this.get("colours"),function(t,r){var i,s,o,u,a;o=M.util.get_string(r,"assignfeedback_editpdf"),a=this.get("iconprefix")+r,u=M.util.image_url(a,"assignfeedback_editpdf"),i=e.Node.create('<button><img alt="'+o+'" src="'+u+'"/></button>'),i.setAttribute("data-colour",r),i.setAttribute("data-rgb",t),i.setStyle("backgroundImage","none"),s=e.Node.create("<li/>"),s.append(i),n.append(s)},this),r=e.Node.create("<div/>"),n.delegate("click",this.callback_handler,"button",this),n.delegate("key",this.callback_handler,"down:13","button",this),this.set("headerText",M.util.get_string("colourpicker","assignfeedback_editpdf")),r.append(n),this.set("bodyContent",r),L.superclass.initializer.call(this,t)},callback_handler:function(t){t.preventDefault();var n=this.get("callback"),r=this.get("context"),i;this.hide(),i=e.bind(n,r,t),i()}},{NAME:k,ATTRS:{colours:{value:{}},callback:{value:null},context:{value:null},iconprefix:{value:"colour_"}}}),M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.colourpicker=L;var A="Colourpicker",O;O=function(e){O.superclass.constructor.apply(this,[e])},e.extend(O,M.assignfeedback_editpdf.dropdown,{initializer:function(t){var n=e.Node.create('<ul role="menu" class="assignfeedback_editpdf_menu"/>');e.each(this.get("stamps"),function(t){var r,i,s;s=M.util.get_string("stamp","assignfeedback_editpdf"),r=e.Node.create('<button><img height="16" width="16" alt="'+s+'" src="'+t+'"/></button>'),r.setAttribute("data-stamp",t),r.setStyle("backgroundImage","none"),i=e.Node.create("<li/>"),i.append(r),n.append(i)},this),n.delegate("click",this.callback_handler,"button",this),n.delegate("key",this.callback_handler,"down:13","button",this),this.set("headerText",M.util.get_string("stamppicker","assignfeedback_editpdf")),this.set("bodyContent"
-,n),O.superclass.initializer.call(this,t)},callback_handler:function(t){t.preventDefault();var n=this.get("callback"),r=this.get("context"),i;this.hide(),i=e.bind(n,r,t),i()}},{NAME:A,ATTRS:{stamps:{value:[]},callback:{value:null},context:{value:null}}}),M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.stamppicker=O;var _="Commentmenu",D;D=function(e){D.superclass.constructor.apply(this,[e])},e.extend(D,M.assignfeedback_editpdf.dropdown,{initializer:function(t){var n,r,i,s;s=this.get("comment"),n=e.Node.create('<ul role="menu" class="assignfeedback_editpdf_menu"/>'),r=e.Node.create('<li><a tabindex="-1" href="#">'+M.util.get_string("addtoquicklist","assignfeedback_editpdf")+"</a></li>"),r.on("click",s.add_to_quicklist,s),r.on("key",s.add_to_quicklist,"enter,space",s),n.append(r),r=e.Node.create('<li><a tabindex="-1" href="#">'+M.util.get_string("deletecomment","assignfeedback_editpdf")+"</a></li>"),r.on("click",function(e){e.preventDefault(),this.menu.hide(),this.remove()},s),r.on("key",function(){s.menu.hide(),s.remove()},"enter,space",s),n.append(r),r=e.Node.create("<li><hr/></li>"),n.append(r),this.set("headerText",M.util.get_string("commentcontextmenu","assignfeedback_editpdf")),i=e.Node.create("<div/>"),i.append(n),this.set("bodyContent",i),D.superclass.initializer.call(this,t)},show:function(){var t=this.get("boundingBox").one("ul");t.all(".quicklist_comment").remove(!0);var n=this.get("comment");n.deleteme=!1,e.each(n.editor.quicklist.comments,function(r){var i=e.Node.create('<li class="quicklist_comment"></li>'),s=e.Node.create('<a href="#" tabindex="-1">'+r.rawtext+"</a>"),o=e.Node.create('<a href="#" tabindex="-1" class="delete_quicklist_comment"><img src="'+M.util.image_url("t/delete","core")+'" '+'alt="'+M.util.get_string("deletecomment","assignfeedback_editpdf")+'"/>'+"</a>");i.append(s),i.append(o),t.append(i),s.on("click",n.set_from_quick_comment,n,r),s.on("key",n.set_from_quick_comment,"space,enter",n,r),o.on("click",n.remove_from_quicklist,n,r),o.on("key",n.remove_from_quicklist,"space,enter",n,r)},this),D.superclass.show.call(this)}},{NAME:_,ATTRS:{comment:{value:null}}}),M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.commentmenu=D;var P="commentsearch",H;H=function(e){e.draggable=!1,e.centered=!0,e.width="400px",e.visible=!1,e.headerContent=M.util.get_string("searchcomments","assignfeedback_editpdf"),e.footerContent="",H.superclass.constructor.apply(this,[e])},e.extend(H,M.core.dialogue,{initializer:function(t){var n,r,i,s,o,u;u=this.get("boundingBox"),u.addClass("assignfeedback_editpdf_commentsearch"),n=this.get("editor"),r=e.Node.create("<div/>"),i=M.util.get_string("filter","assignfeedback_editpdf"),s=e.Node.create('<input type="text" size="20" placeholder="'+i+'"/>'),r.append(s),o=e.Node.create('<ul role="menu" class="assignfeedback_editpdf_menu"/>'),r.append(o),s.on("keyup",this.filter_search_comments,this),o.delegate("click",this.focus_on_comment,"a",this),o.delegate("key",this.focus_on_comment,"enter,space","a",this),this.set("bodyContent",r),H.superclass.initializer.call(this,t)},filter_search_comments:function(){var t,n,r,i;i=this.get("id"),t=e.one("#"+i+s.SEARCHFILTER),n=e.one("#"+i+s.SEARCHCOMMENTSLIST),r=t.get("value"),n.all("li").each(function(e){e.get("text").indexOf(r)!==-1?e.show():e.hide()})},focus_on_comment:function(e){e.preventDefault();var t=e.target.ancestor("li"),n=t.getData("comment"),r=this.get("editor");this.hide(),n.pageno===r.currentpage?n.drawable.nodes[0].one("textarea").focus():(r.currentpage=n.pageno,r.change_page(),n.drawable.nodes[0].one("textarea").focus())},show:function(){var t=this.get("boundingBox").one("ul"),n=this.get("editor");t.all("li").remove(!0),e.each(n.pages,function(n){e.each(n.comments,function(n){var r=e.Node.create('<li><a href="#" tabindex="-1"><pre>'+n.rawtext+"</pre></a></li>");t.append(r),r.setData("comment",n)},this)},this),this.centerDialogue(),H.superclass.show.call(this)}},{NAME:P,ATTRS:{editor:{value:null}}}),e.Base.modifyAttrs(H,{modal:{getter:function(){return!0}}}),M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.commentsearch=H;var B=function(t,n,r,i,o,u,l,c){this.editor=t,this.gradeid=n||0,this.x=parseInt(i,10)||0,this.y=parseInt(o,10)||0,this.width=parseInt(u,10)||0,this.rawtext=c||"",this.pageno=r||0,this.colour=l||"yellow",this.drawable=!1,this.deleteme=!1,this.menulink=null,this.menu=null,this.clean=function(){return{gradeid:this.gradeid,x:parseInt(this.x,10),y:parseInt(this.y,10),width:parseInt(this.width,10),rawtext:this.rawtext,pageno:this.currentpage,colour:this.colour}},this.draw=function(t){var n=new M.assignfeedback_editpdf.drawable(this.editor),r,i=this.editor.get_dialogue_element(s.DRAWINGREGION),o,u,l,c;return r=e.Node.create("<textarea/>"),o=e.Node.create('<div class="commentdrawable"/>'),u=e.Node.create('<a href="#"><img src="'+M.util.image_url("t/contextmenu","core")+'"/></a>'),this.menulink=u,o.append(r),this.editor.get("readonly")?r.setAttribute("readonly","readonly"):o.append(u),this.width<100&&(this.width=100),l=this.editor.get_window_coordinates(new M.assignfeedback_editpdf.point(this.x,this.y)),r.setStyles({width:this.width+"px",backgroundColor:f[this.colour],color:a}),i.append(o),o.setStyle("position","absolute"),o.setX(l.x),o.setY(l.y),n.store_position(o,l.x,l.y),n.nodes.push(o),r.set("value",this.rawtext),c=r.get("scrollHeight"),r.setStyles({height:c+"px",overflow:"hidden"}),this.editor.get("readonly")||this.attach_events(r,u),t&&r.focus(),this.drawable=n,n},this.delete_comment_later=function(){this.deleteme&&this.remove()},this.attach_events=function(t,n){t.on("blur",function(){this.rawtext=t.get("value"),this.width=parseInt(t.getStyle("width"),10),this.rawtext.replace(/^\s+|\s+$/g,"")===""&&(this.deleteme=!0,e.later(400,this,this.delete_comment_later)),this.editor.save_current_page(),this.editor.editingcomment=!1},this),n.setData("comment",this),t.on("keyup",function(){var e=t.get("scrollHeight"
-),n=parseInt(t.getStyle("height"),10);e===n+8&&(e-=8),t.setStyle("height",e+"px")}),t.on("gesturemovestart",function(e){t.setData("dragging",!0),t.setData("offsetx",e.clientX-t.getX()),t.setData("offsety",e.clientY-t.getY())}),t.on("gesturemoveend",function(){t.setData("dragging",!1),this.editor.save_current_page()},null,this),t.on("gesturemove",function(e){var n=e.clientX-t.getData("offsetx"),r=e.clientY-t.getData("offsety"),i,s,o,u,a;i=parseInt(t.getStyle("width"),10),s=parseInt(t.getStyle("height"),10),o=this.editor.get_canvas_coordinates(new M.assignfeedback_editpdf.point(n,r)),a=this.editor.get_canvas_bounds(!0),a.x=0,a.y=0,a.width-=i+42,a.height-=s+8,o.clip(a),this.x=o.x,this.y=o.y,u=this.editor.get_window_coordinates(o),t.ancestor().setX(u.x),t.ancestor().setY(u.y),this.drawable.store_position(t.ancestor(),u.x,u.y)},null,this),this.menu=new M.assignfeedback_editpdf.commentmenu({buttonNode:this.menulink,comment:this})},this.remove=function(){var e=0,t;t=this.editor.pages[this.editor.currentpage].comments;for(e=0;e<t.length;e++)if(t[e]===this){t.splice(e,1),this.drawable.erase(),this.editor.save_current_page();return}},this.remove_from_quicklist=function(e,t){e.preventDefault(),this.menu.hide(),this.editor.quicklist.remove(t)},this.set_from_quick_comment=function(e,t){e.preventDefault(),this.menu.hide(),this.rawtext=t.rawtext,this.width=t.width,this.colour=t.colour,this.editor.save_current_page(),this.editor.redraw()},this.add_to_quicklist=function(e){e.preventDefault(),this.menu.hide(),this.editor.quicklist.add(this)},this.draw_current_edit=function(t){var n=new M.assignfeedback_editpdf.drawable(this.editor),r,i;return i=new M.assignfeedback_editpdf.rect,i.bound([t.start,t.end]),r=this.editor.graphic.addShape({type:e.Rect,width:i.width,height:i.height,fill:{color:f[t.commentcolour]},x:i.x,y:i.y}),n.shapes.push(r),n},this.init_from_edit=function(e){var t=new M.assignfeedback_editpdf.rect;return t.bound([e.start,e.end]),t.width<100&&(t.width=100),this.gradeid=this.editor.get("gradeid"),this.pageno=this.editor.currentpage,this.x=t.x,this.y=t.y,this.width=t.width,this.colour=e.commentcolour,this.rawtext="",t.has_min_width()&&t.has_min_height()}};M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.comment=B;var j=function(e,t,n,r){this.rawtext=t||"",this.id=e||0,this.width=n||100,this.colour=r||"yellow"};M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.quickcomment=j;var F=function(t){this.editor=t,this.comments=[],this.add=function(t){var r=n,i;if(t.rawtext==="")return;i={method:"post",context:this,sync:!1,data:{sesskey:M.cfg.sesskey,action:"addtoquicklist",userid:this.editor.get("userid"),commenttext:t.rawtext,width:t.width,colour:t.colour,attemptnumber:this.editor.get("attemptnumber"),assignmentid:this.editor.get("assignmentid")},on:{success:function(t,n){var r,i;try{r=e.JSON.parse(n.responseText);if(r.error)return new M.core.ajaxException(r);i=new M.assignfeedback_editpdf.quickcomment(r.id,r.rawtext,r.width,r.colour),this.comments.push(i)}catch(s){return new M.core.exception(s)}},failure:function(e,t){return M.core.exception(t.responseText)}}},e.io(r,i)},this.remove=function(t){var r=n,i;if(!t)return;i={method:"post",context:this,sync:!1,data:{sesskey:M.cfg.sesskey,action:"removefromquicklist",userid:this.editor.get("userid"),commentid:t.id,attemptnumber:this.editor.get("attemptnumber"),assignmentid:this.editor.get("assignmentid")},on:{success:function(){var e;e=this.comments.indexOf(t),e>=0&&this.comments.splice(e,1)},failure:function(e,t){return M.core.exception(t.responseText)}}},e.io(r,i)},this.load=function(){var t=n,r;r={method:"get",context:this,sync:!1,data:{sesskey:M.cfg.sesskey,action:"loadquicklist",userid:this.editor.get("userid"),attemptnumber:this.editor.get("attemptnumber"),assignmentid:this.editor.get("assignmentid")},on:{success:function(t,n){var r;try{r=e.JSON.parse(n.responseText);if(r.error)return new M.core.ajaxException(r);e.each(r,function(e){var t=new M.assignfeedback_editpdf.quickcomment(e.id,e.rawtext,e.width,e.colour);this.comments.push(t)},this)}catch(i){return new M.core.exception(i)}},failure:function(e,t){return M.core.exception(t.responseText)}}},e.io(t,r)}};M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.quickcommentlist=F;var I=function(){I.superclass.constructor.apply(this,arguments)};I.prototype={dialogue:null,pagecount:0,currentpage:0,pages:[],loadingicon:null,pageimage:null,graphic:null,currentedit:new M.assignfeedback_editpdf.edit,currentdrawable:!1,drawables:[],currentcomment:null,currentannotation:null,lastanntationtool:"pen",quicklist:null,searchcommentswindow:null,currentstamp:null,stamps:[],editingcomment:!1,initializer:function(){var t;t=e.one("#"+this.get("linkid")),t&&(t.on("click",this.link_handler,this),t.on("key",this.link_handler,"down:13",this),this.currentedit.start=!1,this.currentedit.end=!1,this.get("readonly")||(this.quicklist=new M.assignfeedback_editpdf.quickcommentlist(this)))},refresh_button_state:function(){var e,t,n;e=this.get_dialogue_element(s.COMMENTCOLOURBUTTON),n=M.util.image_url("background_colour_"+this.currentedit.commentcolour,"assignfeedback_editpdf"),e.one("img").setAttribute("src",n),this.currentedit.commentcolour==="clear"?e.one("img").setStyle("borderStyle","dashed"):e.one("img").setStyle("borderStyle","solid"),e=this.get_dialogue_element(s.ANNOTATIONCOLOURBUTTON),n=M.util.image_url("colour_"+this.currentedit.annotationcolour,"assignfeedback_editpdf"),e.one("img").setAttribute("src",n),t=this.get_dialogue_element(h[this.currentedit.tool]),t.addClass("assignfeedback_editpdf_selectedbutton"),t.setAttribute("aria-pressed","true"),e=this.get_dialogue_element(s.STAMPSBUTTON),e.one("img").setAttrs({src:this.get_stamp_image_url(this.currentedit.stamp),height:"16",width:"16"})},get_canvas_bounds:function(){var e=this.get_dialogue_element(s.DRAWINGCANVAS),t=e.getXY(),n=t[0],r=t[1],i=parseInt(e.getStyle("width"),10),o=parseInt(e.getStyle
-("height"),10);return new M.assignfeedback_editpdf.rect(n,r,i,o)},get_canvas_coordinates:function(e){var t=this.get_canvas_bounds(),n=new M.assignfeedback_editpdf.point(e.x-t.x,e.y-t.y);return t.x=t.y=0,n.clip(t),n},get_window_coordinates:function(e){var t=this.get_canvas_bounds(),n=new M.assignfeedback_editpdf.point(e.x+t.x,e.y+t.y);return n},link_handler:function(t){var n,r,o=!0;t.preventDefault(),this.dialogue||(this.dialogue=new M.core.dialogue({headerContent:this.get("header"),bodyContent:this.get("body"),footerContent:this.get("footer"),modal:!0,width:"840px",visible:!1,draggable:!0}),this.dialogue.get("boundingBox").addClass(i.DIALOGUE),this.loadingicon=this.get_dialogue_element(s.LOADINGICON),n=this.get_dialogue_element(s.DRAWINGCANVAS),this.graphic=new e.Graphic({render:n}),r=this.get_dialogue_element(s.DRAWINGREGION),r.on("scroll",this.move_canvas,this),this.get("readonly")||(n.on("gesturemovestart",this.edit_start,null,this),n.on("gesturemove",this.edit_move,null,this),n.on("gesturemoveend",this.edit_end,null,this),this.refresh_button_state()),this.load_all_pages(),n.on("windowresize",this.resize,this),o=!1),this.dialogue.centerDialogue(),this.dialogue.show(),this.dialogue.dd.on("drag:end",this.redraw,this),o&&this.resize()},load_all_pages:function(){var t=n,i,o,u;i={method:"get",context:this,sync:!1,data:{sesskey:M.cfg.sesskey,action:"loadallpages",userid:this.get("userid"),attemptnumber:this.get("attemptnumber"),assignmentid:this.get("assignmentid"),readonly:this.get("readonly")?1:0},on:{success:function(e,t){this.all_pages_loaded(t.responseText)},failure:function(e,t){return new M.core.exception(t.responseText)}}},e.io(t,i),this.pagecount<=0&&(o={method:"get",context:this,sync:!1,data:{sesskey:M.cfg.sesskey,action:"conversionstatus",userid:this.get("userid"),attemptnumber:this.get("attemptnumber"),assignmentid:this.get("assignmentid")},on:{success:function(t,n){u=0;if(this.pagecount===0){var i=this.get("pagetotal"),a=this.get_dialogue_element(s.PROGRESSBARCONTAINER),f=a.one(".bar");if(f){var l=n.response/i*100;f.setStyle("width",l+"%"),a.setAttribute("aria-valuenow",l)}e.later(1e3,this,function(){e.io(r,o)})}},failure:function(t,n){return u+=1,this.pagecount===0&&u<5&&e.later(1e3,this,function(){e.io(r,o)}),new M.core.exception(n.responseText)}}},e.later(1e3,this,function(){u=0,e.io(r,o)}))},all_pages_loaded:function(t){var n,r,i,s,o;try{n=e.JSON.parse(t);if(n.error||!n.pagecount){this.dialogue.hide(),o=new M.core.alert({message:M.util.get_string("cannotopenpdf","assignfeedback_editpdf")}),o.show();return}}catch(u){this.dialogue.hide(),o=new M.core.alert({title:M.util.get_string("cannotopenpdf","assignfeedback_editpdf")}),o.show();return}this.pagecount=n.pagecount,this.pages=n.pages;for(r=0;r<this.pages.length;r++){for(i=0;i<this.pages[r].comments.length;i++)s=this.pages[r].comments[i],this.pages[r].comments[i]=new M.assignfeedback_editpdf.comment(this,s.gradeid,s.pageno,s.x,s.y,s.width,s.colour,s.rawtext);for(i=0;i<this.pages[r].annotations.length;i++)n=this.pages[r].annotations[i],this.pages[r].annotations[i]=this.create_annotation(n.type,n)}this.quicklist&&this.quicklist.load(),this.setup_navigation(),this.setup_toolbar(),this.change_page()},get_stamp_image_url:function(t){var n=this.get("stampfiles"),r="";return e.Array.each(n,function(e){e.indexOf(t)>0&&(r=e)},this),r},setup_toolbar:function(){var t,n,r,i,o,u,a,c;i=this.get_dialogue_element(s.SEARCHCOMMENTSBUTTON),i.on("click",this.open_search_comments,this),i.on("key",this.open_search_comments,"down:13",this);if(this.get("readonly"))return;e.each(h,function(e,n){t=this.get_dialogue_element(e),t.on("click",this.handle_tool_button,this,n),t.on("key",this.handle_tool_button,"down:13",this,n),t.setAttribute("aria-pressed","false")},this),n=this.get_dialogue_element(s.COMMENTCOLOURBUTTON),a=new M.assignfeedback_editpdf.colourpicker({buttonNode:n,colours:f,iconprefix:"background_colour_",callback:function(e){var t=e.target.getAttribute("data-colour");t||(t=e.target.ancestor().getAttribute("data-colour")),this.currentedit.commentcolour=t,this.handle_tool_button(e,"comment")},context:this}),r=this.get_dialogue_element(s.ANNOTATIONCOLOURBUTTON),a=new M.assignfeedback_editpdf.colourpicker({buttonNode:r,iconprefix:"colour_",colours:l,callback:function(e){var t=e.target.getAttribute("data-colour");t||(t=e.target.ancestor().getAttribute("data-colour")),this.currentedit.annotationcolour=t,this.lastannotationtool?this.handle_tool_button(e,this.lastannotationtool):this.handle_tool_button(e,"pen")},context:this}),u=this.get("stampfiles"),u.length<=0?this.get_dialogue_element(h.stamp).ancestor().hide():(c=u[0].substr(u[0].lastIndexOf("/")+1),this.currentedit.stamp=c,o=this.get_dialogue_element(s.STAMPSBUTTON),a=new M.assignfeedback_editpdf.stamppicker({buttonNode:o,stamps:u,callback:function(e){var t=e.target.getAttribute("data-stamp"),n;t||(t=e.target.ancestor().getAttribute("data-stamp")),n=t.substr(t.lastIndexOf("/")),this.currentedit.stamp=n,this.handle_tool_button(e,"stamp")},context:this}),this.refresh_button_state())},handle_tool_button:function(e,t){var n;e.preventDefault(),n=this.get_dialogue_element(h[this.currentedit.tool]),n.removeClass("assignfeedback_editpdf_selectedbutton"),n.setAttribute("aria-pressed","false"),this.currentedit.tool=t,t!=="comment"&&t!=="select"&&t!=="stamp"&&(this.lastannotationtool=t),this.refresh_button_state()},stringify_current_page:function(){var t=[],n=[],r,i=0;for(i=0;i<this.pages[this.currentpage].comments.length;i++)t[i]=this.pages[this.currentpage].comments[i].clean();for(i=0;i<this.pages[this.currentpage].annotations.length;i++)n[i]=this.pages[this.currentpage].annotations[i].clean();return r={comments:t,annotations:n},e.JSON.stringify(r)},get_current_drawable:function(){var e,t,n=!1;return!this.currentedit.start||!this.currentedit.end?!1:(this.currentedit.tool==="comment"?(e=new M.assignfeedback_editpdf.comment(this),n=e.draw_current_edit(this.currentedit)):(t=this.create_annotation(this.currentedit
-.tool,{}),t&&(n=t.draw_current_edit(this.currentedit))),n)},get_dialogue_element:function(e){return this.dialogue.get("boundingBox").one(e)},redraw_current_edit:function(){this.currentdrawable&&this.currentdrawable.erase(),this.currentdrawable=this.get_current_drawable()},edit_start:function(t){t.preventDefault();var n=this.get_dialogue_element(s.DRAWINGCANVAS),r=n.getXY(),i=n.get("docScrollY"),o=n.get("docScrollX"),u={x:t.clientX-r[0]+o,y:t.clientY-r[1]+i},a=!1,f;if(t.button===3)return;if(this.currentedit.starttime)return;if(this.editingcomment)return;this.currentedit.starttime=(new Date).getTime(),this.currentedit.start=u,this.currentedit.end={x:u.x,y:u.y};if(this.currentedit.tool==="select"){var l=this.currentedit.end.x,c=this.currentedit.end.y,h=this.pages[this.currentpage].annotations;e.each(h,function(e){(l-e.x)*(l-e.endx)<=0&&(c-e.y)*(c-e.endy)<=0&&(a=e)}),a&&(f=this.currentannotation,this.currentannotation=a,f&&f!==a&&f.drawable&&(f.drawable.erase(),this.drawables.push(f.draw())),this.currentannotation.drawable&&this.currentannotation.drawable.erase(),this.drawables.push(this.currentannotation.draw()))}this.currentannotation&&(this.currentedit.annotationstart={x:this.currentannotation.x,y:this.currentannotation.y})},edit_move:function(e){e.preventDefault();var t=this.get_canvas_bounds(),n=this.get_dialogue_element(s.DRAWINGCANVAS),r=new M.assignfeedback_editpdf.point(e.clientX+n.get("docScrollX"),e.clientY+n.get("docScrollY")),i=this.get_canvas_coordinates(r);if(i.x<0||i.x>t.width||i.y<0||i.y>t.height)return;this.currentedit.tool==="pen"&&this.currentedit.path.push(i),this.currentedit.tool==="select"?this.currentannotation&&this.currentedit&&this.currentannotation.move(this.currentedit.annotationstart.x+i.x-this.currentedit.start.x,this.currentedit.annotationstart.y+i.y-this.currentedit.start.y):this.currentedit.start&&(this.currentedit.end=i,this.redraw_current_edit())},edit_end:function(){var e,t,n;e=(new Date).getTime()-this.currentedit.start;if(e<c||this.currentedit.start===!1)return;this.currentedit.tool==="comment"?(this.currentdrawable&&this.currentdrawable.erase(),this.currentdrawable=!1,t=new M.assignfeedback_editpdf.comment(this),t.init_from_edit(this.currentedit)&&(this.pages[this.currentpage].comments.push(t),this.drawables.push(t.draw(!0)),this.editingcomment=!0)):(n=this.create_annotation(this.currentedit.tool,{}),n&&(this.currentdrawable&&this.currentdrawable.erase(),this.currentdrawable=!1,n.init_from_edit(this.currentedit)&&(this.pages[this.currentpage].annotations.push(n),this.drawables.push(n.draw())))),this.save_current_page(),this.currentedit.starttime=0,this.currentedit.start=!1,this.currentedit.end=!1,this.currentedit.path=[]},resize:function(){var t,n;if(!this.dialogue.get("visible"))return;return this.dialogue.centerDialogue(),n=e.one("body").get("winHeight")-120,n<100&&(n=100),t=this.get_dialogue_element(s.DRAWINGREGION),t.setStyle("maxHeight",n+"px"),this.redraw(),!0},create_annotation:function(e,t){return t.type=e,t.editor=this,e==="line"?new M.assignfeedback_editpdf.annotationline(t):e==="rectangle"?new M.assignfeedback_editpdf.annotationrectangle(t):e==="oval"?new M.assignfeedback_editpdf.annotationoval(t):e==="pen"?new M.assignfeedback_editpdf.annotationpen(t):e==="highlight"?new M.assignfeedback_editpdf.annotationhighlight(t):e==="stamp"?new M.assignfeedback_editpdf.annotationstamp(t):!1},save_current_page:function(){var t=n,r;r={method:"post",context:this,sync:!1,data:{sesskey:M.cfg.sesskey,action:"savepage",index:this.currentpage,userid:this.get("userid"),attemptnumber:this.get("attemptnumber"),assignmentid:this.get("assignmentid"),page:this.stringify_current_page()},on:{success:function(t,n){var r;try{r=e.JSON.parse(n.responseText);if(r.error)return new M.core.ajaxException(r);e.one("#"+this.get("linkid")).siblings(s.UNSAVEDCHANGESDIV).item(0).addClass("haschanges")}catch(i){return new M.core.exception(i)}},failure:function(e,t){return new M.core.exception(t.responseText)}}},e.io(t,r)},open_search_comments:function(e){this.searchcommentswindow||(this.searchcommentswindow=new M.assignfeedback_editpdf.commentsearch({editor:this})),this.searchcommentswindow.show(),e.preventDefault()},redraw:function(){var e,t;t=this.pages[this.currentpage];if(t===undefined)return;while(this.drawables.length>0)this.drawables.pop().erase();for(e=0;e<t.annotations.length;e++)this.drawables.push(t.annotations[e].draw());for(e=0;e<t.comments.length;e++)this.drawables.push(t.comments[e].draw(!1))},change_page:function(){var e=this.get_dialogue_element(s.DRAWINGCANVAS),t,n,r;n=this.get_dialogue_element(s.PREVIOUSBUTTON),r=this.get_dialogue_element(s.NEXTBUTTON),this.currentpage>0?n.removeAttribute("disabled"):n.setAttribute("disabled","true"),this.currentpage<this.pagecount-1?r.removeAttribute("disabled"):r.setAttribute("disabled","true"),t=this.pages[this.currentpage],this.loadingicon.hide(),e.setStyle("backgroundImage",'url("'+t.url+'")'),e.setStyle("width",t.width+"px"),e.setStyle("height",t.height+"px"),this.get_dialogue_element(s.PAGESELECT).set("value",this.currentpage),this.resize()},setup_navigation:function(){var t,n,r,i,o,u;t=this.get_dialogue_element(s.PAGESELECT);var a=t.all("option");if(a.size()<=1)for(n=0;n<this.pages.length;n++)i=e.Node.create("<option/>"),i.setAttribute("value",n),r={page:n+1,total:this.pages.length},i.setHTML(M.util.get_string("pagexofy","assignfeedback_editpdf",r)),t.append(i);t.removeAttribute("disabled"),t.on("change",function(){this.currentpage=t.get("value"),this.change_page()},this),o=this.get_dialogue_element(s.PREVIOUSBUTTON),u=this.get_dialogue_element(s.NEXTBUTTON),o.on("click",this.previous_page,this),o.on("key",this.previous_page,"down:13",this),u.on("click",this.next_page,this),u.on("key",this.next_page,"down:13",this)},previous_page:function(e){e.preventDefault(),this.currentpage--,this.currentpage<0&&(this.currentpage=0),this.change_page()},next_page:function(e){e.preventDefault(),this.currentpage++,this.currentpage>=this.pages
-.length&&(this.currentpage=this.pages.length-1),this.change_page()},move_canvas:function(){var e,t,n,r;e=this.get_dialogue_element(s.DRAWINGREGION),t=parseInt(e.get("scrollLeft"),10),n=parseInt(e.get("scrollTop"),10);for(r=0;r<this.drawables.length;r++)this.drawables[r].scroll_update(t,n)}},e.extend(I,e.Base,I.prototype,{NAME:"moodle-assignfeedback_editpdf-editor",ATTRS:{userid:{validator:e.Lang.isInteger,value:0},assignmentid:{validator:e.Lang.isInteger,value:0},attemptnumber:{validator:e.Lang.isInteger,value:0},header:{validator:e.Lang.isString,value:""},body:{validator:e.Lang.isString,value:""},footer:{validator:e.Lang.isString,value:""},linkid:{validator:e.Lang.isString,value:""},deletelinkid:{validator:e.Lang.isString,value:""},readonly:{validator:e.Lang.isBoolean,value:!0},stampfiles:{validator:e.Lang.isArray,value:""},pagetotal:{validator:e.Lang.isInteger,value:0}}}),M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.editor=M.assignfeedback_editpdf.editor||{},M.assignfeedback_editpdf.editor.init=M.assignfeedback_editpdf.editor.init||function(e){return new I(e)}},"@VERSION@",{requires:["base","event","node","io","graphics","json","event-move","event-resize","querystring-stringify-simple","moodle-core-notification-dialog","moodle-core-notification-exception","moodle-core-notification-ajaxexception"]});
+YUI.add("moodle-assignfeedback_editpdf-editor",function(e,t){var n=M.cfg.wwwroot+"/mod/assign/feedback/editpdf/ajax.php",r=M.cfg.wwwroot+"/mod/assign/feedback/editpdf/ajax_progress.php",i={DIALOGUE:"assignfeedback_editpdf_widget"},s={PREVIOUSBUTTON:".navigate-previous-button",NEXTBUTTON:" .navigate-next-button",SEARCHCOMMENTSBUTTON:".searchcommentsbutton",SEARCHFILTER:".assignfeedback_editpdf_commentsearch input",SEARCHCOMMENTSLIST:".assignfeedback_editpdf_commentsearch ul",PAGESELECT:".navigate-page-select",LOADINGICON:".loading",PROGRESSBARCONTAINER:".progress-info.progress-striped",DRAWINGREGION:".drawingregion",DRAWINGCANVAS:".drawingcanvas",SAVE:".savebutton",COMMENTCOLOURBUTTON:".commentcolourbutton",COMMENTMENU:".commentdrawable a",ANNOTATIONCOLOURBUTTON:".annotationcolourbutton",DELETEANNOTATIONBUTTON:".deleteannotationbutton",UNSAVEDCHANGESDIV:".assignfeedback_editpdf_unsavedchanges",UNSAVEDCHANGESINPUT:'input[name="assignfeedback_editpdf_haschanges"]',STAMPSBUTTON:".currentstampbutton",DIALOGUE:"."+i.DIALOGUE},o="rgba(200, 200, 255, 0.9)",u="rgba(200, 200, 255, 0.5)",a="rgb(51, 51, 51)",f={white:"rgb(255,255,255)",yellow:"rgb(255,236,174)",red:"rgb(249,181,179)",green:"rgb(214,234,178)",blue:"rgb(203,217,237)",clear:"rgba(255,255,255, 0)"},l={white:"rgb(255,255,255)",yellow:"rgb(255,207,53)",red:"rgb(239,69,64)",green:"rgb(152,202,62)",blue:"rgb(125,159,211)",black:"rgb(51,51,51)"},c=300,h={comment:".commentbutton",pen:".penbutton",line:".linebutton",rectangle:".rectanglebutton",oval:".ovalbutton",stamp:".stampbutton",select:".selectbutton",highlight:".highlightbutton"},p=4,d=function(e,t){this.x=parseInt(e,10),this.y=parseInt(t,10),this.clip=function(e){return this.x<e.x&&(this.x=e.x),this.x>e.x+e.width&&(this.x=e.x+e.width),this.y<e.y&&(this.y=e.y),this.y>e.y+e.height&&(this.y=e.y+e.height),this}};M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.point=d;var v=function(e,t,n,r){this.x=e,this.y=t,this.width=n,this.height=r,this.bound=function(e){var t=0,n=0,r=0,i=0,s=0,o;for(s=0;s<e.length;s++){o=e[s];if(o.x<t||s===0)t=o.x;if(o.x>n||s===0)n=o.x;if(o.y<r||s===0)r=o.y;if(o.y>i||s===0)i=o.y}return this.x=t,this.y=r,this.width=n-t,this.height=i-r,this},this.has_min_width=function(){return this.width>=5},this.has_min_height=function(){return this.height>=5},this.set_min_width=function(){this.width=5},this.set_min_height=function(){this.height=5}};M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.rect=v;var m=function(){this.start=!1,this.end=!1,this.starttime=0,this.annotationstart=!1,this.tool="comment",this.commentcolour="yellow",this.annotationcolour="red",this.stamp="",this.path=[]};M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.edit=m;var g=function(e){this.editor=e,this.shapes=[],this.nodes=[],this.erase=function(){if(this.shapes)while(this.shapes.length>0)this.editor.graphic.removeShape(this.shapes.pop());if(this.nodes)while(this.nodes.length>0)this.nodes.pop().remove()},this.scroll_update=function(e,t){var n,r,i;for(n=0;n<this.nodes.length;n++)r=this.nodes[n].getData("x"),i=this.nodes[n].getData("y"),r!==undefined&&i!==undefined&&(this.nodes[n].setX(parseInt(r,10)-e),this.nodes[n].setY(parseInt(i,10)-t))},this.store_position=function(e,t,n){var r,i,o;r=this.editor.get_dialogue_element(s.DRAWINGREGION),i=parseInt(r.get("scrollLeft"),10),o=parseInt(r.get("scrollTop"),10),e.setData("x",t+i),e.setData("y",n+o)}};M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.drawable=g;var y=function(e){y.superclass.constructor.apply(this,[e])};y.NAME="annotation",y.ATTRS={},e.extend(y,e.Base,{editor:null,gradeid:0,pageno:0,x:0,y:0,endx:0,endy:0,path:"",type:"rect",colour:"red",drawable:!1,initializer:function(e){this.editor=e.editor||null,this.gradeid=parseInt(e.gradeid,10)||0,this.pageno=parseInt(e.pageno,10)||0,this.x=parseInt(e.x,10)||0,this.y=parseInt(e.y,10)||0,this.endx=parseInt(e.endx,10)||0,this.endy=parseInt(e.endy,10)||0,this.path=e.path||"",this.type=e.type||"rect",this.colour=e.colour||"red",this.drawable=!1},clean:function(){return{gradeid:this.gradeid,x:parseInt(this.x,10),y:parseInt(this.y,10),endx:parseInt(this.endx,10),endy:parseInt(this.endy,10),type:this.type,path:this.path,pageno:this.pageno,colour:this.colour}},draw_highlight:function(){var t,n=this.editor.get_dialogue_element(s.DRAWINGREGION),r=this.editor.get_dialogue_element(s.DRAWINGCANVAS).getXY(),i;if(this.editor.currentannotation===this){t=new M.assignfeedback_editpdf.rect,t.bound([new M.assignfeedback_editpdf.point(this.x,this.y),new M.assignfeedback_editpdf.point(this.endx,this.endy)]),i=this.editor.graphic.addShape({type:e.Rect,width:t.width,height:t.height,stroke:{weight:p,color:o},fill:{color:u},x:t.x,y:t.y}),this.drawable.shapes.push(i);var a=e.Node.create('<img src="'+M.util.image_url("trash","assignfeedback_editpdf")+'"/>'),f=e.Node.create('<a href="#" role="button"></a>');a.setAttrs({alt:M.util.get_string("deleteannotation","assignfeedback_editpdf")}),a.setStyles({backgroundColor:"white"}),f.addClass("deleteannotationbutton"),f.append(a),n.append(f),f.setData("annotation",this),f.setStyle("zIndex","200"),f.on("click",this.remove,this),f.on("key",this.remove,"space,enter",this),f.setX(r[0]+t.x+t.width-18),f.setY(r[1]+t.y+6),this.drawable.nodes.push(f)}return this.drawable},draw:function(){return this.draw_highlight(),this.drawable},remove:function(e){var t,n;e.preventDefault(),t=this.editor.pages[this.editor.currentpage].annotations;for(n=0;n<t.length;n++)if(t[n]===this){t.splice(n,1),this.drawable&&this.drawable.erase(),this.editor.currentannotation=!1,this.editor.save_current_page();return}},move:function(t,n){var r=t-this.x,i=n-this.y,s,o,u,a,f;this.x+=r,this.y+=i,this.endx+=r,this.endy+=i,this.path&&(s=[],o=this.path.split(":"),e.each(o,function(e){u=e.split(","),a=parseInt(u[0],10),f=parseInt(u[1],10),s.push(a+r+","+(f+i))}),this.path=s.join(":")),this.drawable&&this.drawable.erase(),
+this.editor.drawables.push(this.draw())},draw_current_edit:function(e){var t=e&&!1;return t},init_from_edit:function(e){var t=new M.assignfeedback_editpdf.rect;return t.bound([e.start,e.end]),this.gradeid=this.editor.get("gradeid"),this.pageno=this.editor.currentpage,this.x=t.x,this.y=t.y,this.endx=t.x+t.width,this.endy=t.y+t.height,this.colour=e.annotationcolour,this.path="",t.has_min_width()&&t.has_min_height()}}),M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.annotation=y;var b=function(e){b.superclass.constructor.apply(this,[e])};b.NAME="annotationline",b.ATTRS={},e.extend(b,M.assignfeedback_editpdf.annotation,{draw:function(){var t,n;return t=new M.assignfeedback_editpdf.drawable(this.editor),n=this.editor.graphic.addShape({type:e.Path,fill:!1,stroke:{weight:p,color:l[this.colour]}}),n.moveTo(this.x,this.y),n.lineTo(this.endx,this.endy),n.end(),t.shapes.push(n),this.drawable=t,b.superclass.draw.apply(this)},draw_current_edit:function(t){var n=new M.assignfeedback_editpdf.drawable(this.editor),r;return r=this.editor.graphic.addShape({type:e.Path,fill:!1,stroke:{weight:p,color:l[t.annotationcolour]}}),r.moveTo(t.start.x,t.start.y),r.lineTo(t.end.x,t.end.y),r.end(),n.shapes.push(r),n},init_from_edit:function(e){return this.gradeid=this.editor.get("gradeid"),this.pageno=this.editor.currentpage,this.x=e.start.x,this.y=e.start.y,this.endx=e.end.x,this.endy=e.end.y,this.colour=e.annotationcolour,this.path="",this.endx-this.x!==0||this.endy-this.y!==0}}),M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.annotationline=b;var w=function(e){w.superclass.constructor.apply(this,[e])};w.NAME="annotationrectangle",w.ATTRS={},e.extend(w,M.assignfeedback_editpdf.annotation,{draw:function(){var t,n,r;return t=new M.assignfeedback_editpdf.drawable(this.editor),n=new M.assignfeedback_editpdf.rect,n.bound([new M.assignfeedback_editpdf.point(this.x,this.y),new M.assignfeedback_editpdf.point(this.endx,this.endy)]),r=this.editor.graphic.addShape({type:e.Rect,width:n.width,height:n.height,stroke:{weight:p,color:l[this.colour]},x:n.x,y:n.y}),t.shapes.push(r),this.drawable=t,w.superclass.draw.apply(this)},draw_current_edit:function(t){var n=new M.assignfeedback_editpdf.drawable(this.editor),r,i;return i=new M.assignfeedback_editpdf.rect,i.bound([new M.assignfeedback_editpdf.point(t.start.x,t.start.y),new M.assignfeedback_editpdf.point(t.end.x,t.end.y)]),i.has_min_width()||i.set_min_width(),i.has_min_height()||i.set_min_height(),r=this.editor.graphic.addShape({type:e.Rect,width:i.width,height:i.height,stroke:{weight:p,color:l[t.annotationcolour]},x:i.x,y:i.y}),n.shapes.push(r),n}}),M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.annotationrectangle=w;var E=function(e){E.superclass.constructor.apply(this,[e])};E.NAME="annotationoval",E.ATTRS={},e.extend(E,M.assignfeedback_editpdf.annotation,{draw:function(){var t,n,r;return t=new M.assignfeedback_editpdf.drawable(this.editor),n=new M.assignfeedback_editpdf.rect,n.bound([new M.assignfeedback_editpdf.point(this.x,this.y),new M.assignfeedback_editpdf.point(this.endx,this.endy)]),r=this.editor.graphic.addShape({type:e.Ellipse,width:n.width,height:n.height,stroke:{weight:p,color:l[this.colour]},x:n.x,y:n.y}),t.shapes.push(r),this.drawable=t,E.superclass.draw.apply(this)},draw_current_edit:function(t){var n=new M.assignfeedback_editpdf.drawable(this.editor),r,i;return i=new M.assignfeedback_editpdf.rect,i.bound([new M.assignfeedback_editpdf.point(t.start.x,t.start.y),new M.assignfeedback_editpdf.point(t.end.x,t.end.y)]),i.has_min_width()||i.set_min_width(),i.has_min_height()||i.set_min_height(),r=this.editor.graphic.addShape({type:e.Ellipse,width:i.width,height:i.height,stroke:{weight:p,color:l[t.annotationcolour]},x:i.x,y:i.y}),n.shapes.push(r),n}}),M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.annotationoval=E;var S=function(e){S.superclass.constructor.apply(this,[e])};S.NAME="annotationpen",S.ATTRS={},e.extend(S,M.assignfeedback_editpdf.annotation,{draw:function(){var t,n,r,i,s;return t=new M.assignfeedback_editpdf.drawable(this.editor),n=this.editor.graphic.addShape({type:e.Path,fill:!1,stroke:{weight:p,color:l[this.colour]}}),r=!0,i=this.path.split(":"),e.each(i,function(e){s=e.split(","),r?(n.moveTo(s[0],s[1]),r=!1):n.lineTo(s[0],s[1])},this),n.end(),t.shapes.push(n),this.drawable=t,S.superclass.draw.apply(this)},draw_current_edit:function(t){var n=new M.assignfeedback_editpdf.drawable(this.editor),r,i;return r=this.editor.graphic.addShape({type:e.Path,fill:!1,stroke:{weight:p,color:l[t.annotationcolour]}}),i=!0,e.each(t.path,function(e){i?(r.moveTo(e.x,e.y),i=!1):r.lineTo(e.x,e.y)},this),r.end(),n.shapes.push(r),n},init_from_edit:function(e){var t=new M.assignfeedback_editpdf.rect,n=[],r=0;t.bound(e.path);for(r=0;r<e.path.length;r++)n.push(parseInt(e.path[r].x,10)+","+parseInt(e.path[r].y,10));return this.gradeid=this.editor.get("gradeid"),this.pageno=this.editor.currentpage,this.x=t.x,this.y=t.y,this.endx=t.x+t.width,this.endy=t.y+t.height,this.colour=e.annotationcolour,this.path=n.join(":"),t.has_min_width()||t.has_min_height()}}),M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.annotationpen=S;var x=function(e){x.superclass.constructor.apply(this,[e])};x.NAME="annotationhighlight",x.ATTRS={},e.extend(x,M.assignfeedback_editpdf.annotation,{draw:function(){var t,n,r,i;return t=new M.assignfeedback_editpdf.drawable(this.editor),r=new M.assignfeedback_editpdf.rect,r.bound([new M.assignfeedback_editpdf.point(this.x,this.y),new M.assignfeedback_editpdf.point(this.endx,this.endy)]),i=l[this.colour],i=i.replace("rgb","rgba"),i=i.replace(")",",0.5)"),n=this.editor.graphic.addShape({type:e.Rect,width:r.width,height:r.height,stroke:!1,fill:{color:i},x:r.x,y:r.y}),t.shapes.push(n),this.drawable=t,x.superclass.draw.apply(this)},draw_current_edit:function(t){var n=new M.assignfeedback_editpdf.drawable(this.editor),r,i,s
+;return i=new M.assignfeedback_editpdf.rect,i.bound([new M.assignfeedback_editpdf.point(t.start.x,t.start.y),new M.assignfeedback_editpdf.point(t.end.x,t.end.y)]),i.has_min_width()||i.set_min_width(),s=l[t.annotationcolour],s=s.replace("rgb","rgba"),s=s.replace(")",",0.5)"),r=this.editor.graphic.addShape({type:e.Rect,width:i.width,height:16,stroke:!1,fill:{color:s},x:i.x,y:t.start.y}),n.shapes.push(r),n},init_from_edit:function(e){var t=new M.assignfeedback_editpdf.rect;return t.bound([e.start,e.end]),this.gradeid=this.editor.get("gradeid"),this.pageno=this.editor.currentpage,this.x=t.x,this.y=e.start.y,this.endx=t.x+t.width,this.endy=e.start.y+16,this.colour=e.annotationcolour,this.page="",t.has_min_width()}}),M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.annotationhighlight=x;var T=function(e){T.superclass.constructor.apply(this,[e])};T.NAME="annotationstamp",T.ATTRS={},e.extend(T,M.assignfeedback_editpdf.annotation,{draw:function(){var t=new M.assignfeedback_editpdf.drawable(this.editor),n=this.editor.get_dialogue_element(s.DRAWINGREGION),r,i;return i=this.editor.get_window_coordinates(new M.assignfeedback_editpdf.point(this.x,this.y)),r=e.Node.create("<div/>"),r.setStyles({position:"absolute",display:"inline-block",backgroundImage:"url("+this.editor.get_stamp_image_url(this.path)+")",width:this.endx-this.x,height:this.endy-this.y,backgroundSize:"100% 100%",zIndex:50}),n.append(r),r.setX(i.x),r.setY(i.y),t.store_position(r,i.x,i.y),r.on("gesturemovestart",this.editor.edit_start,null,this.editor),r.on("gesturemove",this.editor.edit_move,null,this.editor),r.on("gesturemoveend",this.editor.edit_end,null,this.editor),t.nodes.push(r),this.drawable=t,T.superclass.draw.apply(this)},draw_current_edit:function(t){var n=new M.assignfeedback_editpdf.rect,r=new M.assignfeedback_editpdf.drawable(this.editor),i=this.editor.get_dialogue_element(s.DRAWINGREGION),o,u;return n.bound([t.start,t.end]),u=this.editor.get_window_coordinates(new M.assignfeedback_editpdf.point(n.x,n.y)),o=e.Node.create("<div/>"),o.setStyles({position:"absolute",display:"inline-block",backgroundImage:"url("+this.editor.get_stamp_image_url(t.stamp)+")",width:n.width,height:n.height,backgroundSize:"100% 100%",zIndex:50}),i.append(o),o.setX(u.x),o.setY(u.y),r.store_position(o,u.x,u.y),r.nodes.push(o),r},init_from_edit:function(e){var t=new M.assignfeedback_editpdf.rect;return t.bound([e.start,e.end]),t.width<40&&(t.width=40),t.height<40&&(t.height=40),this.gradeid=this.editor.get("gradeid"),this.pageno=this.editor.currentpage,this.x=t.x,this.y=t.y,this.endx=t.x+t.width,this.endy=t.y+t.height,this.colour=e.annotationcolour,this.path=e.stamp,!0},move:function(e,t){var n=e-this.x,r=t-this.y;this.x+=n,this.y+=r,this.endx+=n,this.endy+=r,this.drawable&&this.drawable.erase(),this.editor.drawables.push(this.draw())}}),M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.annotationstamp=T;var N="Dropdown menu",C;C=function(e){e.draggable=!1,e.centered=!1,e.width="auto",e.visible=!1,e.footerContent="",C.superclass.constructor.apply(this,[e])},e.extend(C,M.core.dialogue,{initializer:function(t){var n,r,i,s;C.superclass.initializer.call(this,t),s=this.get("boundingBox"),s.addClass("assignfeedback_editpdf_dropdown"),n=this.get("buttonNode"),r=this.bodyNode,i=e.Node.create("<h3/>"),i.addClass("accesshide"),i.setHTML(this.get("headerText")),r.prepend(i),r.on("clickoutside",function(e){this.get("visible")&&e.target.get("id")!==n.get("id")&&e.target.ancestor().get("id")!==n.get("id")&&(e.preventDefault(),this.hide())},this),n.on("click",function(e){e.preventDefault(),this.show()},this),n.on("key",this.show,"enter,space",this)},show:function(){var t=this.get("buttonNode"),n=C.superclass.show.call(this);return this.align(t,[e.WidgetPositionAlign.TL,e.WidgetPositionAlign.BL]),n}},{NAME:N,ATTRS:{headerText:{value:""},buttonNode:{value:null}}}),e.Base.modifyAttrs(C,{modal:{getter:function(){return!1}}}),M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.dropdown=C;var k="Colourpicker",L;L=function(e){L.superclass.constructor.apply(this,[e])},e.extend(L,M.assignfeedback_editpdf.dropdown,{initializer:function(t){var n=e.Node.create('<ul role="menu" class="assignfeedback_editpdf_menu"/>'),r;e.each(this.get("colours"),function(t,r){var i,s,o,u,a;o=M.util.get_string(r,"assignfeedback_editpdf"),a=this.get("iconprefix")+r,u=M.util.image_url(a,"assignfeedback_editpdf"),i=e.Node.create('<button><img alt="'+o+'" src="'+u+'"/></button>'),i.setAttribute("data-colour",r),i.setAttribute("data-rgb",t),i.setStyle("backgroundImage","none"),s=e.Node.create("<li/>"),s.append(i),n.append(s)},this),r=e.Node.create("<div/>"),n.delegate("click",this.callback_handler,"button",this),n.delegate("key",this.callback_handler,"down:13","button",this),this.set("headerText",M.util.get_string("colourpicker","assignfeedback_editpdf")),r.append(n),this.set("bodyContent",r),L.superclass.initializer.call(this,t)},callback_handler:function(t){t.preventDefault();var n=this.get("callback"),r=this.get("context"),i;this.hide(),i=e.bind(n,r,t),i()}},{NAME:k,ATTRS:{colours:{value:{}},callback:{value:null},context:{value:null},iconprefix:{value:"colour_"}}}),M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.colourpicker=L;var A="Colourpicker",O;O=function(e){O.superclass.constructor.apply(this,[e])},e.extend(O,M.assignfeedback_editpdf.dropdown,{initializer:function(t){var n=e.Node.create('<ul role="menu" class="assignfeedback_editpdf_menu"/>');e.each(this.get("stamps"),function(t){var r,i,s;s=M.util.get_string("stamp","assignfeedback_editpdf"),r=e.Node.create('<button><img height="16" width="16" alt="'+s+'" src="'+t+'"/></button>'),r.setAttribute("data-stamp",t),r.setStyle("backgroundImage","none"),i=e.Node.create("<li/>"),i.append(r),n.append(i)},this),n.delegate("click",this.callback_handler,"button",this),n.delegate("key",this.callback_handler,"down:13","button",this),this.set("headerText"
+,M.util.get_string("stamppicker","assignfeedback_editpdf")),this.set("bodyContent",n),O.superclass.initializer.call(this,t)},callback_handler:function(t){t.preventDefault();var n=this.get("callback"),r=this.get("context"),i;this.hide(),i=e.bind(n,r,t),i()}},{NAME:A,ATTRS:{stamps:{value:[]},callback:{value:null},context:{value:null}}}),M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.stamppicker=O;var _="Commentmenu",D;D=function(e){D.superclass.constructor.apply(this,[e])},e.extend(D,M.assignfeedback_editpdf.dropdown,{initializer:function(t){var n,r,i,s;s=this.get("comment"),n=e.Node.create('<ul role="menu" class="assignfeedback_editpdf_menu"/>'),r=e.Node.create('<li><a tabindex="-1" href="#">'+M.util.get_string("addtoquicklist","assignfeedback_editpdf")+"</a></li>"),r.on("click",s.add_to_quicklist,s),r.on("key",s.add_to_quicklist,"enter,space",s),n.append(r),r=e.Node.create('<li><a tabindex="-1" href="#">'+M.util.get_string("deletecomment","assignfeedback_editpdf")+"</a></li>"),r.on("click",function(e){e.preventDefault(),this.menu.hide(),this.remove()},s),r.on("key",function(){s.menu.hide(),s.remove()},"enter,space",s),n.append(r),r=e.Node.create("<li><hr/></li>"),n.append(r),this.set("headerText",M.util.get_string("commentcontextmenu","assignfeedback_editpdf")),i=e.Node.create("<div/>"),i.append(n),this.set("bodyContent",i),D.superclass.initializer.call(this,t)},show:function(){var t=this.get("boundingBox").one("ul");t.all(".quicklist_comment").remove(!0);var n=this.get("comment");n.deleteme=!1,e.each(n.editor.quicklist.comments,function(r){var i=e.Node.create('<li class="quicklist_comment"></li>'),s=e.Node.create('<a href="#" tabindex="-1">'+r.rawtext+"</a>"),o=e.Node.create('<a href="#" tabindex="-1" class="delete_quicklist_comment"><img src="'+M.util.image_url("t/delete","core")+'" '+'alt="'+M.util.get_string("deletecomment","assignfeedback_editpdf")+'"/>'+"</a>");i.append(s),i.append(o),t.append(i),s.on("click",n.set_from_quick_comment,n,r),s.on("key",n.set_from_quick_comment,"space,enter",n,r),o.on("click",n.remove_from_quicklist,n,r),o.on("key",n.remove_from_quicklist,"space,enter",n,r)},this),D.superclass.show.call(this)}},{NAME:_,ATTRS:{comment:{value:null}}}),M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.commentmenu=D;var P="commentsearch",H;H=function(e){e.draggable=!1,e.centered=!0,e.width="400px",e.visible=!1,e.headerContent=M.util.get_string("searchcomments","assignfeedback_editpdf"),e.footerContent="",H.superclass.constructor.apply(this,[e])},e.extend(H,M.core.dialogue,{initializer:function(t){var n,r,i,s,o,u;u=this.get("boundingBox"),u.addClass("assignfeedback_editpdf_commentsearch"),n=this.get("editor"),r=e.Node.create("<div/>"),i=M.util.get_string("filter","assignfeedback_editpdf"),s=e.Node.create('<input type="text" size="20" placeholder="'+i+'"/>'),r.append(s),o=e.Node.create('<ul role="menu" class="assignfeedback_editpdf_menu"/>'),r.append(o),s.on("keyup",this.filter_search_comments,this),o.delegate("click",this.focus_on_comment,"a",this),o.delegate("key",this.focus_on_comment,"enter,space","a",this),this.set("bodyContent",r),H.superclass.initializer.call(this,t)},filter_search_comments:function(){var t,n,r,i;i=this.get("id"),t=e.one("#"+i+s.SEARCHFILTER),n=e.one("#"+i+s.SEARCHCOMMENTSLIST),r=t.get("value"),n.all("li").each(function(e){e.get("text").indexOf(r)!==-1?e.show():e.hide()})},focus_on_comment:function(e){e.preventDefault();var t=e.target.ancestor("li"),n=t.getData("comment"),r=this.get("editor");this.hide(),n.pageno===r.currentpage?n.drawable.nodes[0].one("textarea").focus():(r.currentpage=n.pageno,r.change_page(),n.drawable.nodes[0].one("textarea").focus())},show:function(){var t=this.get("boundingBox").one("ul"),n=this.get("editor");t.all("li").remove(!0),e.each(n.pages,function(n){e.each(n.comments,function(n){var r=e.Node.create('<li><a href="#" tabindex="-1"><pre>'+n.rawtext+"</pre></a></li>");t.append(r),r.setData("comment",n)},this)},this),this.centerDialogue(),H.superclass.show.call(this)}},{NAME:P,ATTRS:{editor:{value:null}}}),e.Base.modifyAttrs(H,{modal:{getter:function(){return!0}}}),M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.commentsearch=H;var B=function(t,n,r,i,o,u,l,c){this.editor=t,this.gradeid=n||0,this.x=parseInt(i,10)||0,this.y=parseInt(o,10)||0,this.width=parseInt(u,10)||0,this.rawtext=c||"",this.pageno=r||0,this.colour=l||"yellow",this.drawable=!1,this.deleteme=!1,this.menulink=null,this.menu=null,this.clean=function(){return{gradeid:this.gradeid,x:parseInt(this.x,10),y:parseInt(this.y,10),width:parseInt(this.width,10),rawtext:this.rawtext,pageno:this.currentpage,colour:this.colour}},this.draw=function(t){var n=new M.assignfeedback_editpdf.drawable(this.editor),r,i=this.editor.get_dialogue_element(s.DRAWINGREGION),o,u,l,c;return r=e.Node.create("<textarea/>"),o=e.Node.create('<div class="commentdrawable"/>'),u=e.Node.create('<a href="#"><img src="'+M.util.image_url("t/contextmenu","core")+'"/></a>'),this.menulink=u,o.append(r),this.editor.get("readonly")?r.setAttribute("readonly","readonly"):o.append(u),this.width<100&&(this.width=100),l=this.editor.get_window_coordinates(new M.assignfeedback_editpdf.point(this.x,this.y)),r.setStyles({width:this.width+"px",backgroundColor:f[this.colour],color:a}),i.append(o),o.setStyle("position","absolute"),o.setX(l.x),o.setY(l.y),n.store_position(o,l.x,l.y),n.nodes.push(o),r.set("value",this.rawtext),c=r.get("scrollHeight"),r.setStyles({height:c+"px",overflow:"hidden"}),this.editor.get("readonly")||this.attach_events(r,u),t&&r.focus(),this.drawable=n,n},this.delete_comment_later=function(){this.deleteme&&this.remove()},this.attach_events=function(t,n){t.on("blur",function(){this.rawtext=t.get("value"),this.width=parseInt(t.getStyle("width"),10),this.rawtext.replace(/^\s+|\s+$/g,"")===""&&(this.deleteme=!0,e.later(400,this,this.delete_comment_later)),this.editor.save_current_page(),this.editor.editingcomment=!1
+},this),n.setData("comment",this),t.on("keyup",function(){var e=t.get("scrollHeight"),n=parseInt(t.getStyle("height"),10);e===n+8&&(e-=8),t.setStyle("height",e+"px")}),t.on("gesturemovestart",function(e){t.setData("dragging",!0),t.setData("offsetx",e.clientX-t.getX()),t.setData("offsety",e.clientY-t.getY())}),t.on("gesturemoveend",function(){t.setData("dragging",!1),this.editor.save_current_page()},null,this),t.on("gesturemove",function(e){var n=e.clientX-t.getData("offsetx"),r=e.clientY-t.getData("offsety"),i,s,o,u,a;i=parseInt(t.getStyle("width"),10),s=parseInt(t.getStyle("height"),10),o=this.editor.get_canvas_coordinates(new M.assignfeedback_editpdf.point(n,r)),a=this.editor.get_canvas_bounds(!0),a.x=0,a.y=0,a.width-=i+42,a.height-=s+8,o.clip(a),this.x=o.x,this.y=o.y,u=this.editor.get_window_coordinates(o),t.ancestor().setX(u.x),t.ancestor().setY(u.y),this.drawable.store_position(t.ancestor(),u.x,u.y)},null,this),this.menu=new M.assignfeedback_editpdf.commentmenu({buttonNode:this.menulink,comment:this})},this.remove=function(){var e=0,t;t=this.editor.pages[this.editor.currentpage].comments;for(e=0;e<t.length;e++)if(t[e]===this){t.splice(e,1),this.drawable.erase(),this.editor.save_current_page();return}},this.remove_from_quicklist=function(e,t){e.preventDefault(),this.menu.hide(),this.editor.quicklist.remove(t)},this.set_from_quick_comment=function(e,t){e.preventDefault(),this.menu.hide(),this.rawtext=t.rawtext,this.width=t.width,this.colour=t.colour,this.editor.save_current_page(),this.editor.redraw()},this.add_to_quicklist=function(e){e.preventDefault(),this.menu.hide(),this.editor.quicklist.add(this)},this.draw_current_edit=function(t){var n=new M.assignfeedback_editpdf.drawable(this.editor),r,i;return i=new M.assignfeedback_editpdf.rect,i.bound([t.start,t.end]),r=this.editor.graphic.addShape({type:e.Rect,width:i.width,height:i.height,fill:{color:f[t.commentcolour]},x:i.x,y:i.y}),n.shapes.push(r),n},this.init_from_edit=function(e){var t=new M.assignfeedback_editpdf.rect;return t.bound([e.start,e.end]),t.width<100&&(t.width=100),this.gradeid=this.editor.get("gradeid"),this.pageno=this.editor.currentpage,this.x=t.x,this.y=t.y,this.width=t.width,this.colour=e.commentcolour,this.rawtext="",t.has_min_width()&&t.has_min_height()}};M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.comment=B;var j=function(e,t,n,r){this.rawtext=t||"",this.id=e||0,this.width=n||100,this.colour=r||"yellow"};M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.quickcomment=j;var F=function(t){this.editor=t,this.comments=[],this.add=function(t){var r=n,i;if(t.rawtext==="")return;i={method:"post",context:this,sync:!1,data:{sesskey:M.cfg.sesskey,action:"addtoquicklist",userid:this.editor.get("userid"),commenttext:t.rawtext,width:t.width,colour:t.colour,attemptnumber:this.editor.get("attemptnumber"),assignmentid:this.editor.get("assignmentid")},on:{success:function(t,n){var r,i;try{r=e.JSON.parse(n.responseText);if(r.error)return new M.core.ajaxException(r);i=new M.assignfeedback_editpdf.quickcomment(r.id,r.rawtext,r.width,r.colour),this.comments.push(i)}catch(s){return new M.core.exception(s)}},failure:function(e,t){return M.core.exception(t.responseText)}}},e.io(r,i)},this.remove=function(t){var r=n,i;if(!t)return;i={method:"post",context:this,sync:!1,data:{sesskey:M.cfg.sesskey,action:"removefromquicklist",userid:this.editor.get("userid"),commentid:t.id,attemptnumber:this.editor.get("attemptnumber"),assignmentid:this.editor.get("assignmentid")},on:{success:function(){var e;e=this.comments.indexOf(t),e>=0&&this.comments.splice(e,1)},failure:function(e,t){return M.core.exception(t.responseText)}}},e.io(r,i)},this.load=function(){var t=n,r;r={method:"get",context:this,sync:!1,data:{sesskey:M.cfg.sesskey,action:"loadquicklist",userid:this.editor.get("userid"),attemptnumber:this.editor.get("attemptnumber"),assignmentid:this.editor.get("assignmentid")},on:{success:function(t,n){var r;try{r=e.JSON.parse(n.responseText);if(r.error)return new M.core.ajaxException(r);e.each(r,function(e){var t=new M.assignfeedback_editpdf.quickcomment(e.id,e.rawtext,e.width,e.colour);this.comments.push(t)},this)}catch(i){return new M.core.exception(i)}},failure:function(e,t){return M.core.exception(t.responseText)}}},e.io(t,r)}};M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.quickcommentlist=F;var I=function(){I.superclass.constructor.apply(this,arguments)};I.prototype={dialogue:null,panel:null,pagecount:0,currentpage:0,pages:[],loadingicon:null,pageimage:null,graphic:null,currentedit:new M.assignfeedback_editpdf.edit,currentdrawable:!1,drawables:[],currentcomment:null,currentannotation:null,lastanntationtool:"pen",quicklist:null,searchcommentswindow:null,currentstamp:null,stamps:[],editingcomment:!1,initializer:function(){var t;t=e.one("#"+this.get("linkid")),t&&(t.on("click",this.link_handler,this),t.on("key",this.link_handler,"down:13",this),require(["mod_assign/grading_review_panel"],function(n){var r=new n,i=r.getReviewPanel("assignfeedback_editpdf");i&&(i=e.one(i),i.empty(),t.ancestor(".fitem").hide(),this.open_in_panel(i)),this.currentedit.start=!1,this.currentedit.end=!1,this.get("readonly")||(this.quicklist=new M.assignfeedback_editpdf.quickcommentlist(this))}.bind(this)))},refresh_button_state:function(){var e,t,n;e=this.get_dialogue_element(s.COMMENTCOLOURBUTTON),n=M.util.image_url("background_colour_"+this.currentedit.commentcolour,"assignfeedback_editpdf"),e.one("img").setAttribute("src",n),this.currentedit.commentcolour==="clear"?e.one("img").setStyle("borderStyle","dashed"):e.one("img").setStyle("borderStyle","solid"),e=this.get_dialogue_element(s.ANNOTATIONCOLOURBUTTON),n=M.util.image_url("colour_"+this.currentedit.annotationcolour,"assignfeedback_editpdf"),e.one("img").setAttribute("src",n),t=this.get_dialogue_element(h[this.currentedit.tool]),t.addClass("assignfeedback_editpdf_selectedbutton"),t.setAttribute("aria-pressed","true"),e=this
+.get_dialogue_element(s.STAMPSBUTTON),e.one("img").setAttrs({src:this.get_stamp_image_url(this.currentedit.stamp),height:"16",width:"16"})},get_canvas_bounds:function(){var e=this.get_dialogue_element(s.DRAWINGCANVAS),t=e.getXY(),n=t[0],r=t[1],i=parseInt(e.getStyle("width"),10),o=parseInt(e.getStyle("height"),10);return new M.assignfeedback_editpdf.rect(n,r,i,o)},get_canvas_coordinates:function(e){var t=this.get_canvas_bounds(),n=new M.assignfeedback_editpdf.point(e.x-t.x,e.y-t.y);return t.x=t.y=0,n.clip(t),n},get_window_coordinates:function(e){var t=this.get_canvas_bounds(),n=new M.assignfeedback_editpdf.point(e.x+t.x,e.y+t.y);return n},open_in_panel:function(t){var n,r;this.panel=t,t.append(this.get("body")),t.addClass(i.DIALOGUE),this.loadingicon=this.get_dialogue_element(s.LOADINGICON),n=this.get_dialogue_element(s.DRAWINGCANVAS),this.graphic=new e.Graphic({render:n}),r=this.get_dialogue_element(s.DRAWINGREGION),r.on("scroll",this.move_canvas,this),this.get("readonly")||(n.on("gesturemovestart",this.edit_start,null,this),n.on("gesturemove",this.edit_move,null,this),n.on("gesturemoveend",this.edit_end,null,this),this.refresh_button_state()),this.load_all_pages()},link_handler:function(t){var n,r,o=!0;t.preventDefault(),this.dialogue||(this.dialogue=new M.core.dialogue({headerContent:this.get("header"),bodyContent:this.get("body"),footerContent:this.get("footer"),modal:!0,width:"840px",visible:!1,draggable:!0}),this.dialogue.get("boundingBox").addClass(i.DIALOGUE),this.loadingicon=this.get_dialogue_element(s.LOADINGICON),n=this.get_dialogue_element(s.DRAWINGCANVAS),this.graphic=new e.Graphic({render:n}),r=this.get_dialogue_element(s.DRAWINGREGION),r.on("scroll",this.move_canvas,this),this.get("readonly")||(n.on("gesturemovestart",this.edit_start,null,this),n.on("gesturemove",this.edit_move,null,this),n.on("gesturemoveend",this.edit_end,null,this),this.refresh_button_state()),this.load_all_pages(),n.on("windowresize",this.resize,this),o=!1),this.dialogue.centerDialogue(),this.dialogue.show(),this.dialogue.dd.on("drag:end",this.redraw,this),o&&this.resize()},load_all_pages:function(){var t=n,i,o,u;i={method:"get",context:this,sync:!1,data:{sesskey:M.cfg.sesskey,action:"loadallpages",userid:this.get("userid"),attemptnumber:this.get("attemptnumber"),assignmentid:this.get("assignmentid"),readonly:this.get("readonly")?1:0},on:{success:function(e,t){this.all_pages_loaded(t.responseText)},failure:function(e,t){return new M.core.exception(t.responseText)}}},e.io(t,i),this.pagecount<=0&&(o={method:"get",context:this,sync:!1,data:{sesskey:M.cfg.sesskey,action:"conversionstatus",userid:this.get("userid"),attemptnumber:this.get("attemptnumber"),assignmentid:this.get("assignmentid")},on:{success:function(t,n){u=0;if(this.pagecount===0){var i=this.get("pagetotal"),a=this.get_dialogue_element(s.PROGRESSBARCONTAINER),f=a.one(".bar");if(f){var l=n.response/i*100;f.setStyle("width",l+"%"),a.setAttribute("aria-valuenow",l)}e.later(1e3,this,function(){e.io(r,o)})}},failure:function(t,n){return u+=1,this.pagecount===0&&u<5&&e.later(1e3,this,function(){e.io(r,o)}),new M.core.exception(n.responseText)}}},e.later(1e3,this,function(){u=0,e.io(r,o)}))},all_pages_loaded:function(t){var n,r,i,s,o;try{n=e.JSON.parse(t);if(n.error||!n.pagecount){this.dialogue&&this.dialogue.hide(),o=new M.core.alert({message:M.util.get_string("cannotopenpdf","assignfeedback_editpdf")}),o.show();return}}catch(u){this.dialogue&&this.dialogue.hide(),o=new M.core.alert({title:M.util.get_string("cannotopenpdf","assignfeedback_editpdf")}),o.show();return}this.pagecount=n.pagecount,this.pages=n.pages;for(r=0;r<this.pages.length;r++){for(i=0;i<this.pages[r].comments.length;i++)s=this.pages[r].comments[i],this.pages[r].comments[i]=new M.assignfeedback_editpdf.comment(this,s.gradeid,s.pageno,s.x,s.y,s.width,s.colour,s.rawtext);for(i=0;i<this.pages[r].annotations.length;i++)n=this.pages[r].annotations[i],this.pages[r].annotations[i]=this.create_annotation(n.type,n)}this.quicklist&&this.quicklist.load(),this.setup_navigation(),this.setup_toolbar(),this.change_page()},get_stamp_image_url:function(t){var n=this.get("stampfiles"),r="";return e.Array.each(n,function(e){e.indexOf(t)>0&&(r=e)},this),r},setup_toolbar:function(){var t,n,r,i,o,u,a,c;i=this.get_dialogue_element(s.SEARCHCOMMENTSBUTTON),i.on("click",this.open_search_comments,this),i.on("key",this.open_search_comments,"down:13",this);if(this.get("readonly"))return;e.each(h,function(e,n){t=this.get_dialogue_element(e),t.on("click",this.handle_tool_button,this,n),t.on("key",this.handle_tool_button,"down:13",this,n),t.setAttribute("aria-pressed","false")},this),n=this.get_dialogue_element(s.COMMENTCOLOURBUTTON),a=new M.assignfeedback_editpdf.colourpicker({buttonNode:n,colours:f,iconprefix:"background_colour_",callback:function(e){var t=e.target.getAttribute("data-colour");t||(t=e.target.ancestor().getAttribute("data-colour")),this.currentedit.commentcolour=t,this.handle_tool_button(e,"comment")},context:this}),r=this.get_dialogue_element(s.ANNOTATIONCOLOURBUTTON),a=new M.assignfeedback_editpdf.colourpicker({buttonNode:r,iconprefix:"colour_",colours:l,callback:function(e){var t=e.target.getAttribute("data-colour");t||(t=e.target.ancestor().getAttribute("data-colour")),this.currentedit.annotationcolour=t,this.lastannotationtool?this.handle_tool_button(e,this.lastannotationtool):this.handle_tool_button(e,"pen")},context:this}),u=this.get("stampfiles"),u.length<=0?this.get_dialogue_element(h.stamp).ancestor().hide():(c=u[0].substr(u[0].lastIndexOf("/")+1),this.currentedit.stamp=c,o=this.get_dialogue_element(s.STAMPSBUTTON),a=new M.assignfeedback_editpdf.stamppicker({buttonNode:o,stamps:u,callback:function(e){var t=e.target.getAttribute("data-stamp"),n;t||(t=e.target.ancestor().getAttribute("data-stamp")),n=t.substr(t.lastIndexOf("/")),this.currentedit.stamp=n,this.handle_tool_button(e,"stamp")},context:this}),this.refresh_button_state())},handle_tool_button:function(e,t){var n;e.preventDefault(),n=
+this.get_dialogue_element(h[this.currentedit.tool]),n.removeClass("assignfeedback_editpdf_selectedbutton"),n.setAttribute("aria-pressed","false"),this.currentedit.tool=t,t!=="comment"&&t!=="select"&&t!=="stamp"&&(this.lastannotationtool=t),this.refresh_button_state()},stringify_current_page:function(){var t=[],n=[],r,i=0;for(i=0;i<this.pages[this.currentpage].comments.length;i++)t[i]=this.pages[this.currentpage].comments[i].clean();for(i=0;i<this.pages[this.currentpage].annotations.length;i++)n[i]=this.pages[this.currentpage].annotations[i].clean();return r={comments:t,annotations:n},e.JSON.stringify(r)},get_current_drawable:function(){var e,t,n=!1;return!this.currentedit.start||!this.currentedit.end?!1:(this.currentedit.tool==="comment"?(e=new M.assignfeedback_editpdf.comment(this),n=e.draw_current_edit(this.currentedit)):(t=this.create_annotation(this.currentedit.tool,{}),t&&(n=t.draw_current_edit(this.currentedit))),n)},get_dialogue_element:function(e){return this.panel?this.panel.one(e):this.dialogue.get("boundingBox").one(e)},redraw_current_edit:function(){this.currentdrawable&&this.currentdrawable.erase(),this.currentdrawable=this.get_current_drawable()},edit_start:function(t){t.preventDefault();var n=this.get_dialogue_element(s.DRAWINGCANVAS),r=n.getXY(),i=n.get("docScrollY"),o=n.get("docScrollX"),u={x:t.clientX-r[0]+o,y:t.clientY-r[1]+i},a=!1,f;if(t.button===3)return;if(this.currentedit.starttime)return;if(this.editingcomment)return;this.currentedit.starttime=(new Date).getTime(),this.currentedit.start=u,this.currentedit.end={x:u.x,y:u.y};if(this.currentedit.tool==="select"){var l=this.currentedit.end.x,c=this.currentedit.end.y,h=this.pages[this.currentpage].annotations;e.each(h,function(e){(l-e.x)*(l-e.endx)<=0&&(c-e.y)*(c-e.endy)<=0&&(a=e)}),a&&(f=this.currentannotation,this.currentannotation=a,f&&f!==a&&f.drawable&&(f.drawable.erase(),this.drawables.push(f.draw())),this.currentannotation.drawable&&this.currentannotation.drawable.erase(),this.drawables.push(this.currentannotation.draw()))}this.currentannotation&&(this.currentedit.annotationstart={x:this.currentannotation.x,y:this.currentannotation.y})},edit_move:function(e){e.preventDefault();var t=this.get_canvas_bounds(),n=this.get_dialogue_element(s.DRAWINGCANVAS),r=new M.assignfeedback_editpdf.point(e.clientX+n.get("docScrollX"),e.clientY+n.get("docScrollY")),i=this.get_canvas_coordinates(r);if(i.x<0||i.x>t.width||i.y<0||i.y>t.height)return;this.currentedit.tool==="pen"&&this.currentedit.path.push(i),this.currentedit.tool==="select"?this.currentannotation&&this.currentedit&&this.currentannotation.move(this.currentedit.annotationstart.x+i.x-this.currentedit.start.x,this.currentedit.annotationstart.y+i.y-this.currentedit.start.y):this.currentedit.start&&(this.currentedit.end=i,this.redraw_current_edit())},edit_end:function(){var e,t,n;e=(new Date).getTime()-this.currentedit.start;if(e<c||this.currentedit.start===!1)return;this.currentedit.tool==="comment"?(this.currentdrawable&&this.currentdrawable.erase(),this.currentdrawable=!1,t=new M.assignfeedback_editpdf.comment(this),t.init_from_edit(this.currentedit)&&(this.pages[this.currentpage].comments.push(t),this.drawables.push(t.draw(!0)),this.editingcomment=!0)):(n=this.create_annotation(this.currentedit.tool,{}),n&&(this.currentdrawable&&this.currentdrawable.erase(),this.currentdrawable=!1,n.init_from_edit(this.currentedit)&&(this.pages[this.currentpage].annotations.push(n),this.drawables.push(n.draw())))),this.save_current_page(),this.currentedit.starttime=0,this.currentedit.start=!1,this.currentedit.end=!1,this.currentedit.path=[]},resize:function(){var t,n;if(this.dialogue){if(!this.dialogue.get("visible"))return;this.dialogue.centerDialogue()}return n=e.one("body").get("winHeight")-120,n<100&&(n=100),t=this.get_dialogue_element(s.DRAWINGREGION),this.dialogue&&t.setStyle("maxHeight",n+"px"),this.redraw(),!0},create_annotation:function(e,t){return t.type=e,t.editor=this,e==="line"?new M.assignfeedback_editpdf.annotationline(t):e==="rectangle"?new M.assignfeedback_editpdf.annotationrectangle(t):e==="oval"?new M.assignfeedback_editpdf.annotationoval(t):e==="pen"?new M.assignfeedback_editpdf.annotationpen(t):e==="highlight"?new M.assignfeedback_editpdf.annotationhighlight(t):e==="stamp"?new M.assignfeedback_editpdf.annotationstamp(t):!1},save_current_page:function(){var t=n,r;r={method:"post",context:this,sync:!1,data:{sesskey:M.cfg.sesskey,action:"savepage",index:this.currentpage,userid:this.get("userid"),attemptnumber:this.get("attemptnumber"),assignmentid:this.get("assignmentid"),page:this.stringify_current_page()},on:{success:function(t,n){var r;try{r=e.JSON.parse(n.responseText);if(r.error)return new M.core.ajaxException(r);e.one(s.UNSAVEDCHANGESINPUT).set("value","true"),e.one(s.UNSAVEDCHANGESDIV).setStyle("opacity",1),e.one(s.UNSAVEDCHANGESDIV).setStyle("display","inline-block"),e.one(s.UNSAVEDCHANGESDIV).transition({duration:1,delay:2,opacity:0},function(){e.one(s.UNSAVEDCHANGESDIV).setStyle("display","none")})}catch(i){return new M.core.exception(i)}},failure:function(e,t){return new M.core.exception(t.responseText)}}},e.io(t,r)},open_search_comments:function(e){this.searchcommentswindow||(this.searchcommentswindow=new M.assignfeedback_editpdf.commentsearch({editor:this})),this.searchcommentswindow.show(),e.preventDefault()},redraw:function(){var e,t;t=this.pages[this.currentpage];if(t===undefined)return;while(this.drawables.length>0)this.drawables.pop().erase();for(e=0;e<t.annotations.length;e++)this.drawables.push(t.annotations[e].draw());for(e=0;e<t.comments.length;e++)this.drawables.push(t.comments[e].draw(!1))},change_page:function(){var e=this.get_dialogue_element(s.DRAWINGCANVAS),t,n,r;n=this.get_dialogue_element(s.PREVIOUSBUTTON),r=this.get_dialogue_element(s.NEXTBUTTON),this.currentpage>0?n.removeAttribute("disabled"):n.setAttribute("disabled","true"),this.currentpage<this.pagecount-1?r.removeAttribute("disabled"):r.setAttribute("disabled","true"),t=this.pages
+[this.currentpage],this.loadingicon.hide(),e.setStyle("backgroundImage",'url("'+t.url+'")'),e.setStyle("width",t.width+"px"),e.setStyle("height",t.height+"px"),this.get_dialogue_element(s.PAGESELECT).set("value",this.currentpage),this.resize()},setup_navigation:function(){var t,n,r,i,o,u;t=this.get_dialogue_element(s.PAGESELECT);var a=t.all("option");if(a.size()<=1)for(n=0;n<this.pages.length;n++)i=e.Node.create("<option/>"),i.setAttribute("value",n),r={page:n+1,total:this.pages.length},i.setHTML(M.util.get_string("pagexofy","assignfeedback_editpdf",r)),t.append(i);t.removeAttribute("disabled"),t.on("change",function(){this.currentpage=t.get("value"),this.change_page()},this),o=this.get_dialogue_element(s.PREVIOUSBUTTON),u=this.get_dialogue_element(s.NEXTBUTTON),o.on("click",this.previous_page,this),o.on("key",this.previous_page,"down:13",this),u.on("click",this.next_page,this),u.on("key",this.next_page,"down:13",this)},previous_page:function(e){e.preventDefault(),this.currentpage--,this.currentpage<0&&(this.currentpage=0),this.change_page()},next_page:function(e){e.preventDefault(),this.currentpage++,this.currentpage>=this.pages.length&&(this.currentpage=this.pages.length-1),this.change_page()},move_canvas:function(){var e,t,n,r;e=this.get_dialogue_element(s.DRAWINGREGION),t=parseInt(e.get("scrollLeft"),10),n=parseInt(e.get("scrollTop"),10);for(r=0;r<this.drawables.length;r++)this.drawables[r].scroll_update(t,n)}},e.extend(I,e.Base,I.prototype,{NAME:"moodle-assignfeedback_editpdf-editor",ATTRS:{userid:{validator:e.Lang.isInteger,value:0},assignmentid:{validator:e.Lang.isInteger,value:0},attemptnumber:{validator:e.Lang.isInteger,value:0},header:{validator:e.Lang.isString,value:""},body:{validator:e.Lang.isString,value:""},footer:{validator:e.Lang.isString,value:""},linkid:{validator:e.Lang.isString,value:""},deletelinkid:{validator:e.Lang.isString,value:""},readonly:{validator:e.Lang.isBoolean,value:!0},stampfiles:{validator:e.Lang.isArray,value:""},pagetotal:{validator:e.Lang.isInteger,value:0}}}),M.assignfeedback_editpdf=M.assignfeedback_editpdf||{},M.assignfeedback_editpdf.editor=M.assignfeedback_editpdf.editor||{},M.assignfeedback_editpdf.editor.init=M.assignfeedback_editpdf.editor.init||function(e){return M.assignfeedback_editpdf.instance=new I(e),M.assignfeedback_editpdf.instance}},"@VERSION@",{requires:["base","event","node","io","graphics","json","event-move","event-resize","transition","querystring-stringify-simple","moodle-core-notification-dialog","moodle-core-notification-exception","moodle-core-notification-ajaxexception"]});
diff --git a/mod/assign/feedback/editpdf/yui/build/moodle-assignfeedback_editpdf-editor/moodle-assignfeedback_editpdf-editor.js b/mod/assign/feedback/editpdf/yui/build/moodle-assignfeedback_editpdf-editor/moodle-assignfeedback_editpdf-editor.js
index 311826c55bb..16a50edfcdf 100644
--- a/mod/assign/feedback/editpdf/yui/build/moodle-assignfeedback_editpdf-editor/moodle-assignfeedback_editpdf-editor.js
+++ b/mod/assign/feedback/editpdf/yui/build/moodle-assignfeedback_editpdf-editor/moodle-assignfeedback_editpdf-editor.js
@@ -42,6 +42,7 @@ var AJAXBASE = M.cfg.wwwroot + '/mod/assign/feedback/editpdf/ajax.php',
         ANNOTATIONCOLOURBUTTON :  '.annotationcolourbutton',
         DELETEANNOTATIONBUTTON : '.deleteannotationbutton',
         UNSAVEDCHANGESDIV : '.assignfeedback_editpdf_unsavedchanges',
+        UNSAVEDCHANGESINPUT : 'input[name="assignfeedback_editpdf_haschanges"]',
         STAMPSBUTTON : '.currentstampbutton',
         DIALOGUE : '.' + CSS.DIALOGUE
     },
@@ -3097,6 +3098,15 @@ EDITOR.prototype = {
      */
     dialogue : null,
 
+    /**
+     * The panel used for all action menu displays.
+     *
+     * @property type
+     * @type Y.Node
+     * @protected
+     */
+    panel : null,
+
     /**
      * The number of pages in the pdf.
      *
@@ -3258,11 +3268,24 @@ EDITOR.prototype = {
             link.on('click', this.link_handler, this);
             link.on('key', this.link_handler, 'down:13', this);
 
-            this.currentedit.start = false;
-            this.currentedit.end = false;
-            if (!this.get('readonly')) {
-                this.quicklist = new M.assignfeedback_editpdf.quickcommentlist(this);
-            }
+            // We call the amd module to see if we can take control of the review panel.
+            require(['mod_assign/grading_review_panel'], function(ReviewPanelManager) {
+                var panelManager = new ReviewPanelManager();
+
+                var panel = panelManager.getReviewPanel('assignfeedback_editpdf');
+                if (panel) {
+                    panel = Y.one(panel);
+                    panel.empty();
+                    link.ancestor('.fitem').hide();
+                    this.open_in_panel(panel);
+                }
+                this.currentedit.start = false;
+                this.currentedit.end = false;
+                if (!this.get('readonly')) {
+                    this.quicklist = new M.assignfeedback_editpdf.quickcommentlist(this);
+                }
+            }.bind(this));
+
         }
     },
 
@@ -3341,6 +3364,36 @@ EDITOR.prototype = {
         return newpoint;
     },
 
+    /**
+     * Open the edit-pdf editor in the panel in the page instead of a popup.
+     * @method open_in_panel
+     */
+    open_in_panel : function(panel) {
+        var drawingcanvas, drawingregion;
+
+        this.panel = panel;
+        panel.append(this.get('body'));
+        panel.addClass(CSS.DIALOGUE);
+
+        this.loadingicon = this.get_dialogue_element(SELECTOR.LOADINGICON);
+
+        drawingcanvas = this.get_dialogue_element(SELECTOR.DRAWINGCANVAS);
+        this.graphic = new Y.Graphic({render : drawingcanvas});
+
+        drawingregion = this.get_dialogue_element(SELECTOR.DRAWINGREGION);
+        drawingregion.on('scroll', this.move_canvas, this);
+
+        if (!this.get('readonly')) {
+            drawingcanvas.on('gesturemovestart', this.edit_start, null, this);
+            drawingcanvas.on('gesturemove', this.edit_move, null, this);
+            drawingcanvas.on('gesturemoveend', this.edit_end, null, this);
+
+            this.refresh_button_state();
+        }
+
+        this.load_all_pages();
+    },
+
     /**
      * Called to open the pdf editing dialogue.
      * @method link_handler
@@ -3496,14 +3549,18 @@ EDITOR.prototype = {
         try {
             data = Y.JSON.parse(responsetext);
             if (data.error || !data.pagecount) {
-                this.dialogue.hide();
+                if (this.dialogue) {
+                    this.dialogue.hide();
+                }
                 // Display alert dialogue.
                 error = new M.core.alert({ message: M.util.get_string('cannotopenpdf', 'assignfeedback_editpdf') });
                 error.show();
                 return;
             }
         } catch (e) {
-            this.dialogue.hide();
+            if (this.dialogue) {
+                this.dialogue.hide();
+            }
             // Display alert dialogue.
             error = new M.core.alert({ title: M.util.get_string('cannotopenpdf', 'assignfeedback_editpdf')});
             error.show();
@@ -3734,7 +3791,11 @@ EDITOR.prototype = {
      * @method get_dialogue_element
      */
     get_dialogue_element : function(selector) {
-        return this.dialogue.get('boundingBox').one(selector);
+        if (this.panel) {
+            return this.panel.one(selector);
+        } else {
+            return this.dialogue.get('boundingBox').one(selector);
+        }
     },
 
     /**
@@ -3915,10 +3976,12 @@ EDITOR.prototype = {
     resize : function() {
         var drawingregion, drawregionheight;
 
-        if (!this.dialogue.get('visible')) {
-            return;
+        if (this.dialogue) {
+            if (!this.dialogue.get('visible')) {
+                return;
+            }
+            this.dialogue.centerDialogue();
         }
-        this.dialogue.centerDialogue();
 
         // Make sure the dialogue box is not bigger than the max height of the viewport.
         drawregionheight = Y.one('body').get('winHeight') - 120; // Space for toolbar + titlebar.
@@ -3926,7 +3989,9 @@ EDITOR.prototype = {
             drawregionheight = 100;
         }
         drawingregion = this.get_dialogue_element(SELECTOR.DRAWINGREGION);
-        drawingregion.setStyle('maxHeight', drawregionheight +'px');
+        if (this.dialogue) {
+            drawingregion.setStyle('maxHeight', drawregionheight +'px');
+        }
         this.redraw();
         return true;
     },
@@ -3985,8 +4050,16 @@ EDITOR.prototype = {
                         if (jsondata.error) {
                             return new M.core.ajaxException(jsondata);
                         }
-                        Y.one('#' + this.get('linkid')).siblings(SELECTOR.UNSAVEDCHANGESDIV)
-                            .item(0).addClass('haschanges');
+                        Y.one(SELECTOR.UNSAVEDCHANGESINPUT).set('value', 'true');
+                        Y.one(SELECTOR.UNSAVEDCHANGESDIV).setStyle('opacity', 1);
+                        Y.one(SELECTOR.UNSAVEDCHANGESDIV).setStyle('display', 'inline-block');
+                        Y.one(SELECTOR.UNSAVEDCHANGESDIV).transition({
+                            duration: 1,
+                            delay: 2,
+                            opacity: 0
+                        }, function() {
+                            Y.one(SELECTOR.UNSAVEDCHANGESDIV).setStyle('display', 'none');
+                        });
                     } catch (e) {
                         return new M.core.exception(e);
                     }
@@ -4229,7 +4302,8 @@ M.assignfeedback_editpdf.editor = M.assignfeedback_editpdf.editor || {};
  * @param {Object} params
  */
 M.assignfeedback_editpdf.editor.init = M.assignfeedback_editpdf.editor.init || function(params) {
-    return new EDITOR(params);
+    M.assignfeedback_editpdf.instance =  new EDITOR(params);
+    return M.assignfeedback_editpdf.instance;
 };
 
 
@@ -4243,6 +4317,7 @@ M.assignfeedback_editpdf.editor.init = M.assignfeedback_editpdf.editor.init || f
         "json",
         "event-move",
         "event-resize",
+        "transition",
         "querystring-stringify-simple",
         "moodle-core-notification-dialog",
         "moodle-core-notification-exception",
diff --git a/mod/assign/feedback/editpdf/yui/src/editor/js/editor.js b/mod/assign/feedback/editpdf/yui/src/editor/js/editor.js
index 82f9ef5dcb5..c35fd77192d 100644
--- a/mod/assign/feedback/editpdf/yui/src/editor/js/editor.js
+++ b/mod/assign/feedback/editpdf/yui/src/editor/js/editor.js
@@ -42,6 +42,15 @@ EDITOR.prototype = {
      */
     dialogue : null,
 
+    /**
+     * The panel used for all action menu displays.
+     *
+     * @property type
+     * @type Y.Node
+     * @protected
+     */
+    panel : null,
+
     /**
      * The number of pages in the pdf.
      *
@@ -203,11 +212,24 @@ EDITOR.prototype = {
             link.on('click', this.link_handler, this);
             link.on('key', this.link_handler, 'down:13', this);
 
-            this.currentedit.start = false;
-            this.currentedit.end = false;
-            if (!this.get('readonly')) {
-                this.quicklist = new M.assignfeedback_editpdf.quickcommentlist(this);
-            }
+            // We call the amd module to see if we can take control of the review panel.
+            require(['mod_assign/grading_review_panel'], function(ReviewPanelManager) {
+                var panelManager = new ReviewPanelManager();
+
+                var panel = panelManager.getReviewPanel('assignfeedback_editpdf');
+                if (panel) {
+                    panel = Y.one(panel);
+                    panel.empty();
+                    link.ancestor('.fitem').hide();
+                    this.open_in_panel(panel);
+                }
+                this.currentedit.start = false;
+                this.currentedit.end = false;
+                if (!this.get('readonly')) {
+                    this.quicklist = new M.assignfeedback_editpdf.quickcommentlist(this);
+                }
+            }.bind(this));
+
         }
     },
 
@@ -286,6 +308,36 @@ EDITOR.prototype = {
         return newpoint;
     },
 
+    /**
+     * Open the edit-pdf editor in the panel in the page instead of a popup.
+     * @method open_in_panel
+     */
+    open_in_panel : function(panel) {
+        var drawingcanvas, drawingregion;
+
+        this.panel = panel;
+        panel.append(this.get('body'));
+        panel.addClass(CSS.DIALOGUE);
+
+        this.loadingicon = this.get_dialogue_element(SELECTOR.LOADINGICON);
+
+        drawingcanvas = this.get_dialogue_element(SELECTOR.DRAWINGCANVAS);
+        this.graphic = new Y.Graphic({render : drawingcanvas});
+
+        drawingregion = this.get_dialogue_element(SELECTOR.DRAWINGREGION);
+        drawingregion.on('scroll', this.move_canvas, this);
+
+        if (!this.get('readonly')) {
+            drawingcanvas.on('gesturemovestart', this.edit_start, null, this);
+            drawingcanvas.on('gesturemove', this.edit_move, null, this);
+            drawingcanvas.on('gesturemoveend', this.edit_end, null, this);
+
+            this.refresh_button_state();
+        }
+
+        this.load_all_pages();
+    },
+
     /**
      * Called to open the pdf editing dialogue.
      * @method link_handler
@@ -441,14 +493,18 @@ EDITOR.prototype = {
         try {
             data = Y.JSON.parse(responsetext);
             if (data.error || !data.pagecount) {
-                this.dialogue.hide();
+                if (this.dialogue) {
+                    this.dialogue.hide();
+                }
                 // Display alert dialogue.
                 error = new M.core.alert({ message: M.util.get_string('cannotopenpdf', 'assignfeedback_editpdf') });
                 error.show();
                 return;
             }
         } catch (e) {
-            this.dialogue.hide();
+            if (this.dialogue) {
+                this.dialogue.hide();
+            }
             // Display alert dialogue.
             error = new M.core.alert({ title: M.util.get_string('cannotopenpdf', 'assignfeedback_editpdf')});
             error.show();
@@ -679,7 +735,11 @@ EDITOR.prototype = {
      * @method get_dialogue_element
      */
     get_dialogue_element : function(selector) {
-        return this.dialogue.get('boundingBox').one(selector);
+        if (this.panel) {
+            return this.panel.one(selector);
+        } else {
+            return this.dialogue.get('boundingBox').one(selector);
+        }
     },
 
     /**
@@ -860,10 +920,12 @@ EDITOR.prototype = {
     resize : function() {
         var drawingregion, drawregionheight;
 
-        if (!this.dialogue.get('visible')) {
-            return;
+        if (this.dialogue) {
+            if (!this.dialogue.get('visible')) {
+                return;
+            }
+            this.dialogue.centerDialogue();
         }
-        this.dialogue.centerDialogue();
 
         // Make sure the dialogue box is not bigger than the max height of the viewport.
         drawregionheight = Y.one('body').get('winHeight') - 120; // Space for toolbar + titlebar.
@@ -871,7 +933,9 @@ EDITOR.prototype = {
             drawregionheight = 100;
         }
         drawingregion = this.get_dialogue_element(SELECTOR.DRAWINGREGION);
-        drawingregion.setStyle('maxHeight', drawregionheight +'px');
+        if (this.dialogue) {
+            drawingregion.setStyle('maxHeight', drawregionheight +'px');
+        }
         this.redraw();
         return true;
     },
@@ -930,8 +994,16 @@ EDITOR.prototype = {
                         if (jsondata.error) {
                             return new M.core.ajaxException(jsondata);
                         }
-                        Y.one('#' + this.get('linkid')).siblings(SELECTOR.UNSAVEDCHANGESDIV)
-                            .item(0).addClass('haschanges');
+                        Y.one(SELECTOR.UNSAVEDCHANGESINPUT).set('value', 'true');
+                        Y.one(SELECTOR.UNSAVEDCHANGESDIV).setStyle('opacity', 1);
+                        Y.one(SELECTOR.UNSAVEDCHANGESDIV).setStyle('display', 'inline-block');
+                        Y.one(SELECTOR.UNSAVEDCHANGESDIV).transition({
+                            duration: 1,
+                            delay: 2,
+                            opacity: 0
+                        }, function() {
+                            Y.one(SELECTOR.UNSAVEDCHANGESDIV).setStyle('display', 'none');
+                        });
                     } catch (e) {
                         return new M.core.exception(e);
                     }
@@ -1174,5 +1246,6 @@ M.assignfeedback_editpdf.editor = M.assignfeedback_editpdf.editor || {};
  * @param {Object} params
  */
 M.assignfeedback_editpdf.editor.init = M.assignfeedback_editpdf.editor.init || function(params) {
-    return new EDITOR(params);
+    M.assignfeedback_editpdf.instance =  new EDITOR(params);
+    return M.assignfeedback_editpdf.instance;
 };
diff --git a/mod/assign/feedback/editpdf/yui/src/editor/js/globals.js b/mod/assign/feedback/editpdf/yui/src/editor/js/globals.js
index b3f69803462..508e6dd2786 100644
--- a/mod/assign/feedback/editpdf/yui/src/editor/js/globals.js
+++ b/mod/assign/feedback/editpdf/yui/src/editor/js/globals.js
@@ -40,6 +40,7 @@ var AJAXBASE = M.cfg.wwwroot + '/mod/assign/feedback/editpdf/ajax.php',
         ANNOTATIONCOLOURBUTTON :  '.annotationcolourbutton',
         DELETEANNOTATIONBUTTON : '.deleteannotationbutton',
         UNSAVEDCHANGESDIV : '.assignfeedback_editpdf_unsavedchanges',
+        UNSAVEDCHANGESINPUT : 'input[name="assignfeedback_editpdf_haschanges"]',
         STAMPSBUTTON : '.currentstampbutton',
         DIALOGUE : '.' + CSS.DIALOGUE
     },
diff --git a/mod/assign/feedback/editpdf/yui/src/editor/meta/editor.json b/mod/assign/feedback/editpdf/yui/src/editor/meta/editor.json
index e8cf2c8a325..b2256b2a4b5 100644
--- a/mod/assign/feedback/editpdf/yui/src/editor/meta/editor.json
+++ b/mod/assign/feedback/editpdf/yui/src/editor/meta/editor.json
@@ -9,6 +9,7 @@
         "json",
         "event-move",
         "event-resize",
+        "transition",
         "querystring-stringify-simple",
         "moodle-core-notification-dialog",
         "moodle-core-notification-exception",
diff --git a/mod/assign/feedbackplugin.php b/mod/assign/feedbackplugin.php
index 8398a49ae44..5c083e1b9f4 100644
--- a/mod/assign/feedbackplugin.php
+++ b/mod/assign/feedbackplugin.php
@@ -167,6 +167,15 @@ abstract class assign_feedback_plugin extends assign_plugin {
         return '';
     }
 
+    /**
+     * Supports injecting content into the review panel of the grading app.
+     *
+     * @return bool True if this plugin will add content to the review panel of the grading app.
+     */
+    public function supports_review_panel() {
+        return false;
+    }
+
     /**
      * Show a batch operations form
      *
diff --git a/mod/assign/gradingtable.php b/mod/assign/gradingtable.php
index 6e80cad0659..ac89d9a3bad 100644
--- a/mod/assign/gradingtable.php
+++ b/mod/assign/gradingtable.php
@@ -833,16 +833,12 @@ class assign_grading_table extends table_sql implements renderable {
         $gradingdisabled = $this->assignment->grading_disabled($row->id);
 
         if (!$this->is_downloading() && $this->hasgrade) {
-            $name = $this->assignment->fullname($row);
-            $icon = $this->output->pix_icon('gradefeedback',
-                                            get_string('gradeuser', 'assign', $name),
-                                            'mod_assign');
             $urlparams = array('id' => $this->assignment->get_course_module()->id,
-                               'rownum'=>$this->rownum,
-                               'action' => 'grade',
-                               'useridlistid' => $this->assignment->get_useridlist_key_id());
+                               'rownum'=> 0,
+                               'action' => 'grader',
+                               'userid' => $row->userid);
             $url = new moodle_url('/mod/assign/view.php', $urlparams);
-            $link = $this->output->action_link($url, $icon);
+            $link = '<a href="' . $url . '" class="btn btn-primary">' . get_string('grade') . '</a>';
             $grade .= $link . $separator;
         }
 
diff --git a/mod/assign/lang/en/assign.php b/mod/assign/lang/en/assign.php
index 16f20b1f1b6..238721889a7 100644
--- a/mod/assign/lang/en/assign.php
+++ b/mod/assign/lang/en/assign.php
@@ -101,6 +101,8 @@ $string['batchsetmarkingworkflowstateforusers'] = 'Set marking workflow state fo
 $string['blindmarking'] = 'Blind marking';
 $string['blindmarkingenabledwarning'] = 'Blind marking is enabled for this activity.';
 $string['blindmarking_help'] = 'Blind marking hides the identity of students from markers. Blind marking settings will be locked once a submission or grade has been made in relation to this assignment.';
+$string['changeuser'] = 'Change user';
+$string['changefilters'] = 'Change filters';
 $string['changegradewarning'] = 'This assignment has graded submissions and changing the grade will not automatically re-calculate existing submission grades. You must re-grade all existing submissions, if you wish to change the grade.';
 $string['choosegradingaction'] = 'Grading action';
 $string['choosemarker'] = 'Choose...';
@@ -120,6 +122,7 @@ $string['currentgrade'] = 'Current grade in gradebook';
 $string['currentattempt'] = 'This is attempt {$a}.';
 $string['currentattemptof'] = 'This is attempt {$a->attemptnumber} ( {$a->maxattempts} attempts allowed ).';
 $string['cutoffdate'] = 'Cut-off date';
+$string['cutoffdatecolon'] = 'Cut-off date: {$a}';
 $string['cutoffdate_help'] = 'If set, the assignment will not accept submissions after this date without an extension.';
 $string['cutoffdatevalidation'] = 'The cut-off date cannot be earlier than the due date.';
 $string['cutoffdatefromdatevalidation'] = 'Cut-off date must be after the allow submissions from date.';
@@ -131,6 +134,7 @@ $string['description'] = 'Description';
 $string['downloadall'] = 'Download all submissions';
 $string['download all submissions'] = 'Download all submissions in a zip file.';
 $string['duedate'] = 'Due date';
+$string['duedatecolon'] = 'Due date: {$a}';
 $string['duedate_help'] = 'This is when the assignment is due. Submissions will still be allowed after this date but any assignments submitted after this date are marked as late. To prevent submissions after a certain date - set the assignment cut off date.';
 $string['duedateno'] = 'No due date';
 $string['submissionempty'] = 'Nothing was submitted';
@@ -185,6 +189,7 @@ $string['gradersubmissionupdatedsmall'] = '{$a->username} has updated their subm
 $string['gradeuser'] = 'Grade {$a}';
 $string['grantextension'] = 'Grant extension';
 $string['grantextensionforusers'] = 'Grant extension for {$a} students';
+$string['groupsubmissionsettings'] = 'Group submission settings';
 $string['enabled'] = 'Enabled';
 $string['errornosubmissions'] = 'There are no submissions to download';
 $string['errorquickgradingvsadvancedgrading'] = 'The grades were not saved because this assignment is currently using advanced grading';
@@ -205,6 +210,7 @@ $string['feedbackpluginforgradebook'] = 'Feedback plugin that will push comments
 $string['feedbackpluginforgradebook_help'] = 'Only one assignment feedback plugin can push feedback into the gradebook.';
 $string['feedbackplugin'] = 'Feedback plugin';
 $string['feedbacksettings'] = 'Feedback settings';
+$string['feedbacktypes'] = 'Feedback types';
 $string['filesubmissions'] = 'File submissions';
 $string['filter'] = 'Filter';
 $string['filternone'] = 'No filter';
@@ -223,6 +229,7 @@ $string['gradeoutofhelp_help'] = 'Enter the grade for the student\'s submission
 $string['gradestudent'] = 'Grade student: (id={$a->id}, fullname={$a->fullname}). ';
 $string['grading'] = 'Grading';
 $string['gradingchangessaved'] = 'The grade changes were saved';
+$string['gradechangessaveddetail'] = 'The changes to the grade and feedback were saved';
 $string['gradingmethodpreview'] = 'Grading criteria';
 $string['gradingoptions'] = 'Options';
 $string['gradingstatus'] = 'Grading status';
@@ -239,6 +246,7 @@ $string['lastmodifiedsubmission'] = 'Last modified (submission)';
 $string['lastmodifiedgrade'] = 'Last modified (grade)';
 $string['latesubmissions'] = 'Late submissions';
 $string['latesubmissionsaccepted'] = 'Allowed until {$a}';
+$string['loading'] = 'Loading...';
 $string['locksubmissionforstudent'] = 'Prevent any more submissions for student: (id={$a->id}, fullname={$a->fullname}).';
 $string['locksubmissions'] = 'Lock submissions';
 $string['manageassignfeedbackplugins'] = 'Manage assignment feedback plugins';
@@ -284,6 +292,7 @@ $string['multipleteamsgrader'] = 'Member of more than one group, so unable to ma
 $string['mysubmission'] = 'My submission: ';
 $string['newsubmissions'] = 'Assignments submitted';
 $string['noattempt'] = 'No attempt';
+$string['nofilters'] = 'No filters';
 $string['nofiles'] = 'No files. ';
 $string['nograde'] = 'No grade. ';
 $string['nolatesubmissions'] = 'No late submissions accepted. ';
@@ -299,6 +308,7 @@ $string['notgradedyet'] = 'Not graded yet';
 $string['notsubmittedyet'] = 'Not submitted yet';
 $string['notifications'] = 'Notifications';
 $string['nousersselected'] = 'No users selected';
+$string['nousers'] = 'No users';
 $string['numberofdraftsubmissions'] = 'Drafts';
 $string['numberofparticipants'] = 'Participants';
 $string['numberofsubmittedassignments'] = 'Submitted';
@@ -311,6 +321,7 @@ $string['overdue'] = '<font color="red">Assignment is overdue by: {$a}</font>';
 $string['outlinegrade'] = 'Grade: {$a}';
 $string['page-mod-assign-x'] = 'Any assignment module page';
 $string['page-mod-assign-view'] = 'Assignment module main and submission page';
+$string['paramtimeremaining'] = '{$a} remaining';
 $string['participant'] = 'Participant';
 $string['pluginadministration'] = 'Assignment administration';
 $string['pluginname'] = 'Assignment';
@@ -335,10 +346,12 @@ $string['reverttodraftforstudent'] = 'Revert submission to draft for student: (i
 $string['reverttodraft'] = 'Revert the submission to draft status.';
 $string['reverttodraftshort'] = 'Revert the submission to draft';
 $string['reviewed'] = 'Reviewed';
+$string['saveallquickgradingchanges'] = 'Save all quick grading changes';
+$string['saveandcontinue'] = 'Save and continue';
 $string['savechanges'] = 'Save changes';
 $string['savegradingresult'] = 'Grade';
-$string['saveallquickgradingchanges'] = 'Save all quick grading changes';
 $string['savenext'] = 'Save and show next';
+$string['savingchanges'] = 'Saving changes...';
 $string['scale'] = 'Scale';
 $string['search:activity'] = 'Assignment activities';
 $string['sendstudentnotificationsdefault'] = 'Default setting for "Notify students"';
@@ -375,6 +388,7 @@ $string['submissioncopiedsmall'] = 'You have copied your previous assignment sub
 $string['submissiondrafts'] = 'Require students click submit button';
 $string['submissiondrafts_help'] = 'If enabled, students will have to click a Submit button to declare their submission as final. This allows students to keep a draft version of the submission on the system. If this setting is changed from "No" to "Yes" after students have already submitted those submissions will be regarded as final.';
 $string['submissioneditable'] = 'Student can edit this submission';
+$string['submissionlog'] = 'Student: {$a->fullname}, Status: {$a->status}';
 $string['submissionnotcopiedinvalidstatus'] = 'The submission was not copied because it has been edited since it was reopened.';
 $string['submissionnoteditable'] = 'Student cannot edit this submission';
 $string['submissionnotready'] = 'This assignment is not ready to submit:';
@@ -419,6 +433,7 @@ $string['submissionstatus'] = 'Submission status';
 $string['submissionstatus_submitted'] = 'Submitted for grading';
 $string['submissionsummary'] = '{$a->status}. Last modified on {$a->timemodified}';
 $string['submissionteam'] = 'Group';
+$string['submissiontypes'] = 'Submission types';
 $string['submission'] = 'Submission';
 $string['submitaction'] = 'Submit';
 $string['submitforgrading'] = 'Submit for grading';
@@ -439,11 +454,15 @@ $string['teamsubmissiongroupingid_help'] = 'This is the grouping that the assign
 $string['textinstructions'] = 'Assignment instructions';
 $string['timemodified'] = 'Last modified';
 $string['timeremaining'] = 'Time remaining';
+$string['timeremainingcolon'] = 'Time remaining: {$a}';
+$string['togglezoom'] = 'Zoom in/out of region';
 $string['ungroupedusers'] = 'The setting \'Require group to make submission\' is enabled and some users are either not a member of any group, or are a member of more than one group, so are unable to make submissions.';
 $string['unlocksubmissionforstudent'] = 'Allow submissions for student: (id={$a->id}, fullname={$a->fullname}).';
 $string['unlocksubmissions'] = 'Unlock submissions';
 $string['unlimitedattempts'] = 'Unlimited';
 $string['unlimitedattemptsallowed'] = 'Unlimited attempts allowed.';
+$string['unsavedchanges'] = 'Unsaved changes';
+$string['unsavedchangesquestion'] = 'There are unsaved changes to grades or feedback. Do you want to save the changes and continue?';
 $string['updategrade'] = 'Update grade';
 $string['updatetable'] = 'Save and update table';
 $string['upgradenotimplemented'] = 'Upgrade not implemented in plugin ({$a->type} {$a->subtype})';
@@ -452,6 +471,7 @@ $string['useridlistnotcached'] = 'The grade changes were NOT saved, as it was no
 $string['userswhoneedtosubmit'] = 'Users who need to submit: {$a}';
 $string['usergrade'] = 'User grade';
 $string['validmarkingworkflowstates'] = 'Valid marking workflow states';
+$string['viewadifferentattempt'] = 'View a different attempt';
 $string['viewbatchsetmarkingworkflowstate'] = 'View batch set marking workflow state page.';
 $string['viewbatchmarkingallocation'] = 'View batch set marking allocation page.';
 $string['viewfeedback'] = 'View feedback';
@@ -459,7 +479,7 @@ $string['viewfeedbackforuser'] = 'View feedback for user: {$a}';
 $string['viewfullgradingpage'] = 'Open the full grading page to provide feedback';
 $string['viewgradebook'] = 'View gradebook';
 $string['viewgradingformforstudent'] = 'View grading page for student: (id={$a->id}, fullname={$a->fullname}).';
-$string['viewgrading'] = 'View/grade all submissions';
+$string['viewgrading'] = 'View all submissions';
 $string['viewownsubmissionform'] = 'View own submit assignment page.';
 $string['viewownsubmissionstatus'] = 'View own submission status page.';
 $string['viewsubmissionforuser'] = 'View submission for user: {$a}';
@@ -469,7 +489,4 @@ $string['viewsummary'] = 'View summary';
 $string['viewsubmissiongradingtable'] = 'View submission grading table.';
 $string['viewrevealidentitiesconfirm'] = 'View reveal student identities confirmation page.';
 $string['workflowfilter'] = 'Workflow filter';
-$string['submissiontypes'] = 'Submission types';
-$string['feedbacktypes'] = 'Feedback types';
-$string['groupsubmissionsettings'] = 'Group submission settings';
-$string['submissionlog'] = 'Student: {$a->fullname}, Status: {$a->status}';
+$string['xofy'] = '{$a->x} of {$a->y}';
diff --git a/mod/assign/lib.php b/mod/assign/lib.php
index 046f116608f..c4ce5673689 100644
--- a/mod/assign/lib.php
+++ b/mod/assign/lib.php
@@ -1474,3 +1474,36 @@ function assign_pluginfile($course,
     }
     send_stored_file($file, 0, 0, $forcedownload, $options);
 }
+
+/**
+ * Serve the grading panel as a fragment.
+ *
+ * @param array $args List of named arguments for the fragment loader.
+ * @return string
+ */
+function mod_assign_output_fragment_gradingpanel($args) {
+    global $CFG;
+
+    $context = $args['context'];
+
+    if ($context->contextlevel != CONTEXT_MODULE) {
+        return null;
+    }
+    require_once($CFG->dirroot . '/mod/assign/locallib.php');
+    $assign = new assign($context, null, null);
+
+    $userid = clean_param($args['userid'], PARAM_INT);
+    $attemptnumber = clean_param($args['attemptnumber'], PARAM_INT);
+    $formdata = array();
+    if (!empty($args['jsonformdata'])) {
+        $serialiseddata = json_decode($args['jsonformdata']);
+        parse_str($serialiseddata, $formdata);
+    }
+    $viewargs = array(
+        'userid' => $userid,
+        'attemptnumber' => $attemptnumber,
+        'formdata' => $formdata
+    );
+
+    return $assign->view('gradingpanel', $viewargs);
+}
diff --git a/mod/assign/locallib.php b/mod/assign/locallib.php
index 9c462e2afed..03e749d542f 100644
--- a/mod/assign/locallib.php
+++ b/mod/assign/locallib.php
@@ -77,6 +77,8 @@ require_once($CFG->dirroot . '/mod/assign/gradingtable.php');
 require_once($CFG->libdir . '/eventslib.php');
 require_once($CFG->libdir . '/portfolio/caller.php');
 
+use \mod_assign\output\grading_app;
+
 /**
  * Standard base class for mod_assign (assignment types).
  *
@@ -203,7 +205,7 @@ class assign {
     public function register_return_link($action, $params) {
         global $PAGE;
         $params['action'] = $action;
-        $currenturl = $PAGE->url;
+        $currenturl = new moodle_url('/mod/assign/view.php');
 
         $currenturl->params($params);
         $PAGE->set_url($currenturl);
@@ -406,9 +408,10 @@ class assign {
      * the settings for the assignment and the status of the assignment.
      *
      * @param string $action The current action if any.
+     * @param array $args Optional arguments to pass to the view (instead of getting them from GET and POST).
      * @return string - The page output.
      */
-    public function view($action='') {
+    public function view($action='', $args = array()) {
         global $PAGE;
 
         $o = '';
@@ -548,6 +551,8 @@ class assign {
         } else if ($action == 'quickgradingresult') {
             $mform = null;
             $o .= $this->view_quickgrading_result($message);
+        } else if ($action == 'gradingpanel') {
+            $o .= $this->view_single_grading_panel($args);
         } else if ($action == 'grade') {
             $o .= $this->view_single_grade_page($mform);
         } else if ($action == 'viewpluginassignfeedback') {
@@ -556,6 +561,8 @@ class assign {
             $o .= $this->view_plugin_content('assignsubmission');
         } else if ($action == 'editsubmission') {
             $o .= $this->view_edit_submission_page($mform, $notices);
+        } else if ($action == 'grader') {
+            $o .= $this->view_grader();
         } else if ($action == 'grading') {
             $o .= $this->view_grading_page();
         } else if ($action == 'downloadall') {
@@ -1413,6 +1420,85 @@ class assign {
         }
     }
 
+    /**
+     * Get the submission status/grading status for all submissions in this assignment.
+     * These statuses match the available filters (requiregrading, submitted, notsubmitted).
+     * If this is a group assignment, group info is also returned.
+     *
+     * @param int $currentgroup
+     * @param bool $idsonly
+     * @return array List of user records with extra fields 'submitted', 'notsubmitted', 'requiregrading', 'groupid', 'groupname'
+     */
+    public function list_participants_with_filter_status_and_group($currentgroup) {
+        global $DB;
+
+        $participants = $this->list_participants($currentgroup, false);
+
+        if (empty($participants)) {
+            return $participants;
+        }
+
+        list($insql, $params) = $DB->get_in_or_equal(array_keys($participants), SQL_PARAMS_NAMED);
+
+        $assignid = $this->get_instance()->id;
+        $params['assignmentid1'] = $assignid;
+        $params['assignmentid2'] = $assignid;
+
+        $sql = 'SELECT u.id, s.status, s.timemodified AS stime, g.timemodified AS gtime, g.grade FROM {user} u
+                         LEFT JOIN {assign_submission} s
+                                ON u.id = s.userid
+                               AND s.assignment = :assignmentid1
+                               AND s.latest = 1
+                         LEFT JOIN {assign_grades} g
+                                ON u.id = g.userid
+                               AND g.assignment = :assignmentid2
+                               AND g.attemptnumber = s.attemptnumber
+                         WHERE u.id ' . $insql;
+
+        $records = $DB->get_records_sql($sql, $params);
+
+        if ($this->get_instance()->teamsubmission) {
+            // Get all groups.
+            $allgroups = groups_get_all_groups($this->get_course()->id,
+                                               array_keys($participants),
+                                               $this->get_instance()->teamsubmissiongroupingid,
+                                               'DISTINCT g.id, g.name');
+
+        }
+        foreach ($participants as $userid => $participant) {
+            $participants[$userid]->fullname = $this->fullname($participant);
+            $participants[$userid]->submitted = false;
+            $participants[$userid]->requiregrading = false;
+        }
+
+        foreach ($records as $userid => $submissioninfo) {
+            // These filters are 100% the same as the ones in the grading table SQL.
+            $submitted = false;
+            $requiregrading = false;
+
+            if (!empty($submissioninfo->stime) && $submissioninfo->status == ASSIGN_SUBMISSION_STATUS_SUBMITTED) {
+                $submitted = true;
+            }
+
+            if ($submitted && ($submissioninfo->stime >= $submissioninfo->gtime ||
+                    empty($submissioninfo->gtime) ||
+                    $submissioninfo->grade === null)) {
+                $requiregrading = true;
+            }
+
+            $participants[$userid]->submitted = $submitted;
+            $participants[$userid]->requiregrading = $requiregrading;
+            if ($this->get_instance()->teamsubmission) {
+                $group = $this->get_submission_group($userid);
+                if ($group) {
+                    $participants[$userid]->groupid = $group->id;
+                    $participants[$userid]->groupname = $group->name;
+                }
+            }
+        }
+        return $participants;
+    }
+
     /**
      * Load a list of users enrolled in the current course with the specified permission and group.
      * 0 for no group.
@@ -1429,7 +1515,11 @@ class assign {
 
         $key = $this->context->id . '-' . $currentgroup . '-' . $this->show_only_active_users();
         if (!isset($this->participants[$key])) {
-            $users = get_enrolled_users($this->context, 'mod/assign:submit', $currentgroup, 'u.*', null, null, null,
+            $order = 'u.lastname, u.firstname, u.id';
+            if ($this->is_blind_marking()) {
+                $order = 'u.id';
+            }
+            $users = get_enrolled_users($this->context, 'mod/assign:submit', $currentgroup, 'u.*', $order, null, null,
                     $this->show_only_active_users());
 
             $cm = $this->get_course_module();
@@ -2836,7 +2926,7 @@ class assign {
         if ($this->output) {
             return $this->output;
         }
-        $this->output = $PAGE->get_renderer('mod_assign');
+        $this->output = $PAGE->get_renderer('mod_assign', null, RENDERER_TARGET_GENERAL);
         return $this->output;
     }
 
@@ -3047,6 +3137,166 @@ class assign {
         return $DB->get_record('assign_grades', $params, '*', MUST_EXIST);
     }
 
+    /**
+     * Print the grading page for a single user submission.
+     *
+     * @param array $args Optional args array (better than pulling args from _GET and _POST)
+     * @return string
+     */
+    protected function view_single_grading_panel($args) {
+        global $DB, $CFG, $SESSION, $PAGE;
+
+        $o = '';
+        $instance = $this->get_instance();
+
+        require_once($CFG->dirroot . '/mod/assign/gradeform.php');
+
+        // Need submit permission to submit an assignment.
+        require_capability('mod/assign:grade', $this->context);
+
+        // If userid is passed - we are only grading a single student.
+        $userid = $args['userid'];
+        $attemptnumber = $args['attemptnumber'];
+
+        $rownum = 0;
+        $useridlist = array($userid);
+
+        $last = true;
+        // This variation on the url will link direct to this student, with no next/previous links.
+        // The benefit is the url will be the same every time for this student, so Atto autosave drafts can match up.
+        $returnparams = array('userid' => $userid, 'rownum' => 0, 'useridlistid' => 0);
+        $this->register_return_link('grade', $returnparams);
+
+        $user = $DB->get_record('user', array('id' => $userid));
+        $submission = $this->get_user_submission($userid, false, $attemptnumber);
+        $submissiongroup = null;
+        $teamsubmission = null;
+        $notsubmitted = array();
+        if ($instance->teamsubmission) {
+            $teamsubmission = $this->get_group_submission($userid, 0, false, $attemptnumber);
+            $submissiongroup = $this->get_submission_group($userid);
+            $groupid = 0;
+            if ($submissiongroup) {
+                $groupid = $submissiongroup->id;
+            }
+            $notsubmitted = $this->get_submission_group_members_who_have_not_submitted($groupid, false);
+
+        }
+
+        // Get the requested grade.
+        $grade = $this->get_user_grade($userid, false, $attemptnumber);
+        $flags = $this->get_user_flags($userid, false);
+        if ($this->can_view_submission($userid)) {
+            $gradelocked = ($flags && $flags->locked) || $this->grading_disabled($userid);
+            $extensionduedate = null;
+            if ($flags) {
+                $extensionduedate = $flags->extensionduedate;
+            }
+            $showedit = $this->submissions_open($userid) && ($this->is_any_submission_plugin_enabled());
+            $viewfullnames = has_capability('moodle/site:viewfullnames', $this->get_course_context());
+            $usergroups = $this->get_all_groups($user->id);
+
+            $submissionstatus = new assign_submission_status_compact($instance->allowsubmissionsfromdate,
+                                                                     $instance->alwaysshowdescription,
+                                                                     $submission,
+                                                                     $instance->teamsubmission,
+                                                                     $teamsubmission,
+                                                                     $submissiongroup,
+                                                                     $notsubmitted,
+                                                                     $this->is_any_submission_plugin_enabled(),
+                                                                     $gradelocked,
+                                                                     $this->is_graded($userid),
+                                                                     $instance->duedate,
+                                                                     $instance->cutoffdate,
+                                                                     $this->get_submission_plugins(),
+                                                                     $this->get_return_action(),
+                                                                     $this->get_return_params(),
+                                                                     $this->get_course_module()->id,
+                                                                     $this->get_course()->id,
+                                                                     assign_submission_status::GRADER_VIEW,
+                                                                     $showedit,
+                                                                     false,
+                                                                     $viewfullnames,
+                                                                     $extensionduedate,
+                                                                     $this->get_context(),
+                                                                     $this->is_blind_marking(),
+                                                                     '',
+                                                                     $instance->attemptreopenmethod,
+                                                                     $instance->maxattempts,
+                                                                     $this->get_grading_status($userid),
+                                                                     $instance->preventsubmissionnotingroup,
+                                                                     $usergroups);
+            $o .= $this->get_renderer()->render($submissionstatus);
+        }
+
+        if ($grade) {
+            $data = new stdClass();
+            if ($grade->grade !== null && $grade->grade >= 0) {
+                $data->grade = format_float($grade->grade, 2);
+            }
+        } else {
+            $data = new stdClass();
+            $data->grade = '';
+        }
+
+        if (!empty($flags->workflowstate)) {
+            $data->workflowstate = $flags->workflowstate;
+        }
+        if (!empty($flags->allocatedmarker)) {
+            $data->allocatedmarker = $flags->allocatedmarker;
+        }
+
+        // Warning if required.
+        $allsubmissions = $this->get_all_submissions($userid);
+
+        if ($attemptnumber != -1 && ($attemptnumber + 1) != count($allsubmissions)) {
+            $params = array('attemptnumber'=>$attemptnumber + 1,
+                            'totalattempts'=>count($allsubmissions));
+            $message = get_string('editingpreviousfeedbackwarning', 'assign', $params);
+            $o .= $this->get_renderer()->notification($message);
+        }
+
+        $pagination = array('rownum'=>$rownum,
+                            'useridlistid'=>0,
+                            'last'=>$last,
+                            'userid'=>$userid,
+                            'attemptnumber'=>$attemptnumber,
+                            'gradingpanel' => true);
+
+        if (!empty($args['formdata'])) {
+            $data = (array) $data;
+            $data = (object) array_merge($data, $args['formdata']);
+        }
+        $formparams = array($this, $data, $pagination);
+        $mform = new mod_assign_grade_form(null,
+                                           $formparams,
+                                           'post',
+                                           '',
+                                           array('class'=>'gradeform'));
+
+        if (!empty($args['formdata'])) {
+            // If we were passed form data - we want the form to check the data
+            // and show errors.
+            $mform->is_validated();
+        }
+        $o .= $this->get_renderer()->heading(get_string('grade'), 3);
+        $o .= $this->get_renderer()->render(new assign_form('gradingform', $mform));
+
+        if (count($allsubmissions) > 1) {
+            $allgrades = $this->get_all_grades($userid);
+            $history = new assign_attempt_history_chooser($allsubmissions,
+                                                          $allgrades,
+                                                          $this->get_course_module()->id,
+                                                          $userid);
+
+            $o .= $this->get_renderer()->render($history);
+        }
+
+        \mod_assign\event\grading_form_viewed::create_from_user($this, $user)->trigger();
+
+        return $o;
+    }
+
     /**
      * Print the grading page for a single user submission.
      *
@@ -3195,7 +3445,7 @@ class assign {
         // Warning if required.
         $allsubmissions = $this->get_all_submissions($userid);
 
-        if ($attemptnumber != -1) {
+        if ($attemptnumber != -1 && ($attemptnumber + 1) != count($allsubmissions)) {
             $params = array('attemptnumber'=>$attemptnumber + 1,
                             'totalattempts'=>count($allsubmissions));
             $message = get_string('editingpreviousfeedbackwarning', 'assign', $params);
@@ -3485,6 +3735,37 @@ class assign {
         return $o;
     }
 
+    /**
+     * View entire grader app.
+     *
+     * @return string
+     */
+    protected function view_grader() {
+        global $USER, $PAGE;
+
+        $o = '';
+        // Need submit permission to submit an assignment.
+        $this->require_view_grades();
+
+        $PAGE->set_pagelayout('embedded');
+
+        $PAGE->set_title($this->get_context()->get_context_name());
+
+        $o .= $this->get_renderer()->header();
+
+        $userid = optional_param('userid', 0, PARAM_INT);
+
+        $currentgroup = groups_get_activity_group($this->get_course_module(), true);
+        $framegrader = new grading_app($userid, $currentgroup, $this);
+
+        $o .= $this->get_renderer()->render($framegrader);
+
+        $o .= $this->view_footer();
+
+        \mod_assign\event\grading_table_viewed::create_from_assign($this)->trigger();
+
+        return $o;
+    }
     /**
      * View entire grading page.
      *
@@ -3566,10 +3847,10 @@ class assign {
     public function fullname($user) {
         if ($this->is_blind_marking()) {
             $hasviewblind = has_capability('mod/assign:viewblinddetails', $this->get_context());
+            $uniqueid = $this->get_uniqueid_for_user($user->id);
             if ($hasviewblind) {
-                return fullname($user);
+                return get_string('participant', 'assign') . ' ' . $uniqueid . ' (' . fullname($user) . ')';
             } else {
-                $uniqueid = $this->get_uniqueid_for_user($user->id);
                 return get_string('participant', 'assign') . ' ' . $uniqueid;
             }
         } else {
@@ -3666,15 +3947,10 @@ class assign {
     public function can_view_group_submission($groupid) {
         global $USER;
 
-        if (has_capability('mod/assign:grade', $this->context)) {
-            return true;
-        }
-        if (!is_enrolled($this->get_course_context(), $USER->id)) {
-            return false;
-        }
         $members = $this->get_submission_group_members($groupid, true);
         foreach ($members as $member) {
-            if ($member->id == $USER->id) {
+            // If we can view any members submission, we can view the submission for the group.
+            if ($this->can_view_submission($member->id)) {
                 return true;
             }
         }
@@ -3693,12 +3969,12 @@ class assign {
         if (!$this->is_active_user($userid) && !has_capability('moodle/course:viewsuspendedusers', $this->context)) {
             return false;
         }
-        if (has_any_capability(array('mod/assign:viewgrades', 'mod/assign:grade'), $this->context)) {
-            return true;
-        }
         if (!is_enrolled($this->get_course_context(), $userid)) {
             return false;
         }
+        if (has_any_capability(array('mod/assign:viewgrades', 'mod/assign:grade'), $this->context)) {
+            return true;
+        }
         if ($userid == $USER->id && has_capability('mod/assign:submit', $this->context)) {
             return true;
         }
@@ -6226,11 +6502,12 @@ class assign {
         global $USER, $CFG, $SESSION;
         $settings = $this->get_instance();
 
-        $rownum = $params['rownum'];
-        $last = $params['last'];
-        $useridlistid = $params['useridlistid'];
-        $userid = $params['userid'];
-        $attemptnumber = $params['attemptnumber'];
+        $rownum = isset($params['rownum']) ? $params['rownum'] : 0;
+        $last = isset($params['last']) ? $params['last'] : true;
+        $useridlistid = isset($params['useridlistid']) ? $params['useridlistid'] : 0;
+        $userid = isset($params['userid']) ? $params['userid'] : 0;
+        $attemptnumber = isset($params['attemptnumber']) ? $params['attemptnumber'] : 0;
+        $gradingpanel = !empty($params['gradingpanel']);
         if (!$userid) {
             $useridlistkey = $this->get_useridlist_key($useridlistid);
             if (empty($SESSION->mod_assign_useridlist[$useridlistkey])) {
@@ -6373,7 +6650,7 @@ class assign {
             $mform->disabledIf('allocatedmarker', 'workflowstate', 'eq', ASSIGN_MARKING_WORKFLOW_STATE_READYFORRELEASE);
             $mform->disabledIf('allocatedmarker', 'workflowstate', 'eq', ASSIGN_MARKING_WORKFLOW_STATE_RELEASED);
         }
-
+        $gradestring = '<span class="currentgrade">' . $gradestring . '</span>';
         $mform->addElement('static', 'currentgrade', get_string('currentgrade', 'assign'), $gradestring);
 
         if (count($useridlist) > 1) {
@@ -6431,7 +6708,12 @@ class assign {
                 $mform->setDefault('addattempt', 0);
             }
         }
-        $mform->addElement('selectyesno', 'sendstudentnotifications', get_string('sendstudentnotifications', 'assign'));
+        if (!$gradingpanel) {
+            $mform->addElement('selectyesno', 'sendstudentnotifications', get_string('sendstudentnotifications', 'assign'));
+        } else {
+            $mform->addElement('hidden', 'sendstudentnotifications', get_string('sendstudentnotifications', 'assign'));
+            $mform->setType('sendstudentnotifications', PARAM_BOOL);
+        }
         // Get assignment visibility information for student.
         $modinfo = get_fast_modinfo($settings->course, $userid);
         $cm = $modinfo->get_cm($this->get_course_module()->id);
@@ -6451,29 +6733,32 @@ class assign {
         $mform->addElement('hidden', 'action', 'submitgrade');
         $mform->setType('action', PARAM_ALPHA);
 
-        $buttonarray=array();
-        $name = get_string('savechanges', 'assign');
-        $buttonarray[] = $mform->createElement('submit', 'savegrade', $name);
-        if (!$last) {
-            $name = get_string('savenext', 'assign');
-            $buttonarray[] = $mform->createElement('submit', 'saveandshownext', $name);
-        }
-        $buttonarray[] = $mform->createElement('cancel', 'cancelbutton', get_string('cancel'));
-        $mform->addGroup($buttonarray, 'buttonar', '', array(' '), false);
-        $mform->closeHeaderBefore('buttonar');
-        $buttonarray=array();
+        if (!$gradingpanel) {
 
-        if ($rownum > 0) {
-            $name = get_string('previous', 'assign');
-            $buttonarray[] = $mform->createElement('submit', 'nosaveandprevious', $name);
-        }
+            $buttonarray=array();
+            $name = get_string('savechanges', 'assign');
+            $buttonarray[] = $mform->createElement('submit', 'savegrade', $name);
+            if (!$last) {
+                $name = get_string('savenext', 'assign');
+                $buttonarray[] = $mform->createElement('submit', 'saveandshownext', $name);
+            }
+            $buttonarray[] = $mform->createElement('cancel', 'cancelbutton', get_string('cancel'));
+            $mform->addGroup($buttonarray, 'buttonar', '', array(' '), false);
+            $mform->closeHeaderBefore('buttonar');
+            $buttonarray=array();
 
-        if (!$last) {
-            $name = get_string('nosavebutnext', 'assign');
-            $buttonarray[] = $mform->createElement('submit', 'nosaveandnext', $name);
-        }
-        if (!empty($buttonarray)) {
-            $mform->addGroup($buttonarray, 'navar', '', array(' '), false);
+            if ($rownum > 0) {
+                $name = get_string('previous', 'assign');
+                $buttonarray[] = $mform->createElement('submit', 'nosaveandprevious', $name);
+            }
+
+            if (!$last) {
+                $name = get_string('nosavebutnext', 'assign');
+                $buttonarray[] = $mform->createElement('submit', 'nosaveandnext', $name);
+            }
+            if (!empty($buttonarray)) {
+                $mform->addGroup($buttonarray, 'navar', '', array(' '), false);
+            }
         }
         // The grading form does not work well with shortforms.
         $mform->setDisableShortforms();
@@ -7057,7 +7342,7 @@ class assign {
         } else {
             $submission = $this->get_user_submission($userid, false, $data->attemptnumber);
         }
-        if ($instance->teamsubmission && $data->applytoall) {
+        if ($instance->teamsubmission && !empty($data->applytoall)) {
             $groupid = 0;
             if ($this->get_submission_group($userid)) {
                 $group = $this->get_submission_group($userid);
diff --git a/mod/assign/renderable.php b/mod/assign/renderable.php
index ec10f34248b..45ad292d5f7 100644
--- a/mod/assign/renderable.php
+++ b/mod/assign/renderable.php
@@ -488,6 +488,15 @@ class assign_submission_status implements renderable {
         $this->usergroups = $usergroups;
     }
 }
+/**
+ * Renderable submission status
+ * @package   mod_assign
+ * @copyright 2016 Damyon Wiese
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class assign_submission_status_compact extends assign_submission_status implements renderable {
+    // Compact view of the submission status. Not in a table etc.
+}
 
 /**
  * Used to output the attempt history for a particular assignment.
@@ -556,6 +565,86 @@ class assign_attempt_history implements renderable {
     }
 }
 
+/**
+ * Used to output the attempt history chooser for a particular assignment.
+ *
+ * @package mod_assign
+ * @copyright 2016 Damyon Wiese
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class assign_attempt_history_chooser implements renderable, templatable {
+
+    /** @var array submissions - The list of previous attempts */
+    public $submissions = array();
+    /** @var array grades - The grades for the previous attempts */
+    public $grades = array();
+    /** @var int coursemoduleid - The cmid for the assignment */
+    public $coursemoduleid = 0;
+    /** @var int userid - The current userid */
+    public $userid = 0;
+
+    /**
+     * Constructor
+     *
+     * @param array $submissions
+     * @param array $grades
+     * @param int $coursemoduleid
+     * @param int $userid
+     */
+    public function __construct($submissions,
+                                $grades,
+                                $coursemoduleid,
+                                $userid) {
+        $this->submissions = $submissions;
+        $this->grades = $grades;
+        $this->coursemoduleid = $coursemoduleid;
+        $this->userid = $userid;
+    }
+
+    /**
+     * Function to export the renderer data in a format that is suitable for a
+     * mustache template.
+     *
+     * @param renderer_base $output Used to do a final render of any components that need to be rendered for export.
+     * @return stdClass|array
+     */
+    public function export_for_template(renderer_base $output) {
+        // Show newest to oldest.
+        $export = (object) $this;
+        $export->submissions = array_reverse($export->submissions);
+        $export->submissioncount = count($export->submissions);
+
+        foreach ($export->submissions as $i => $submission) {
+            $grade = null;
+            foreach ($export->grades as $onegrade) {
+                if ($onegrade->attemptnumber == $submission->attemptnumber) {
+                    $submission->grade = $onegrade;
+                    break;
+                }
+            }
+            if (!$submission) {
+                $submission = new stdClass();
+            }
+
+            $editbtn = '';
+
+            if ($submission->timemodified) {
+                $submissionsummary = userdate($submission->timemodified);
+            } else {
+                $submissionsummary = get_string('nosubmission', 'assign');
+            }
+
+            $attemptsummaryparams = array('attemptnumber'=>$submission->attemptnumber+1,
+                                          'submissionsummary'=>$submissionsummary);
+            $submission->attemptsummary = get_string('attemptheading', 'assign', $attemptsummaryparams);
+            $submission->statussummary = get_string('submissionstatus_' . $submission->status, 'assign');
+
+        }
+
+        return $export;
+    }
+}
+
 /**
  * Renderable header
  * @package   mod_assign
diff --git a/mod/assign/renderer.php b/mod/assign/renderer.php
index 7aa3c0dea04..92e338de3ca 100644
--- a/mod/assign/renderer.php
+++ b/mod/assign/renderer.php
@@ -26,6 +26,8 @@ defined('MOODLE_INTERNAL') || die();
 
 require_once($CFG->dirroot . '/mod/assign/locallib.php');
 
+use \mod_assign\output\grading_app;
+
 /**
  * A custom renderer class that extends the plugin_renderer_base and is used by the assign module.
  *
@@ -333,14 +335,19 @@ class mod_assign_renderer extends plugin_renderer_base {
         $o .= $this->output->box_end();
 
         // Link to the grading page.
-        $o .= $this->output->container_start('submissionlinks');
+        $o .= '<center>';
+        $o .= $this->output->container_start('submissionlinks btn-group');
         $urlparams = array('id' => $summary->coursemoduleid, 'action'=>'grading');
         $url = new moodle_url('/mod/assign/view.php', $urlparams);
-        $o .= $this->output->action_link($url, get_string('viewgrading', 'assign'));
+        $o .= '<a href="' . $url . '" class="btn">' . get_string('viewgrading', 'mod_assign') . '</a>';
+        $urlparams = array('id' => $summary->coursemoduleid, 'action'=>'grader');
+        $url = new moodle_url('/mod/assign/view.php', $urlparams);
+        $o .= '<a href="' . $url . '" class="btn btn-primary">' . get_string('grade') . '</a>';
         $o .= $this->output->container_end();
 
         // Close the container and insert a spacer.
         $o .= $this->output->container_end();
+        $o .= '</center>';
 
         return $o;
     }
@@ -417,6 +424,189 @@ class mod_assign_renderer extends plugin_renderer_base {
         return $o;
     }
 
+    /**
+     * Render a compact view of the current status of the submission.
+     *
+     * @param assign_submission_status_compact $status
+     * @return string
+     */
+    public function render_assign_submission_status_compact(assign_submission_status_compact $status) {
+        $o = '';
+        $o .= $this->output->container_start('submissionstatustable');
+        $o .= $this->output->heading(get_string('submission', 'assign'), 3);
+        $time = time();
+
+        if ($status->teamsubmissionenabled) {
+            $group = $status->submissiongroup;
+            if ($group) {
+                $team = format_string($group->name, false, $status->context);
+            } else if ($status->preventsubmissionnotingroup) {
+                if (count($status->usergroups) == 0) {
+                    $team = '<span class="alert alert-error">' . get_string('noteam', 'assign') . '</span>';
+                } else if (count($status->usergroups) > 1) {
+                    $team = '<span class="alert alert-error">' . get_string('multipleteams', 'assign') . '</span>';
+                }
+            } else {
+                $team = get_string('defaultteam', 'assign');
+            }
+            $o .= $this->output->container(get_string('teamname', 'assign', $team), 'teamname');
+        }
+
+        if (!$status->teamsubmissionenabled) {
+            if ($status->submission && $status->submission->status != ASSIGN_SUBMISSION_STATUS_NEW) {
+                $statusstr = get_string('submissionstatus_' . $status->submission->status, 'assign');
+                $o .= $this->output->container($statusstr, 'submissionstatus' . $status->submission->status);
+            } else {
+                if (!$status->submissionsenabled) {
+                    $o .= $this->output->container(get_string('noonlinesubmissions', 'assign'), 'submissionstatus');
+                } else {
+                    $o .= $this->output->container(get_string('noattempt', 'assign'), 'submissionstatus');
+                }
+            }
+        } else {
+            $group = $status->submissiongroup;
+            if (!$group && $status->preventsubmissionnotingroup) {
+                $o .= $this->output->container(get_string('nosubmission', 'assign'), 'submissionstatus');
+            } else if ($status->teamsubmission && $status->teamsubmission->status != ASSIGN_SUBMISSION_STATUS_NEW) {
+                $teamstatus = $status->teamsubmission->status;
+                $submissionsummary = get_string('submissionstatus_' . $teamstatus, 'assign');
+                $groupid = 0;
+                if ($status->submissiongroup) {
+                    $groupid = $status->submissiongroup->id;
+                }
+
+                $members = $status->submissiongroupmemberswhoneedtosubmit;
+                $userslist = array();
+                foreach ($members as $member) {
+                    $urlparams = array('id' => $member->id, 'course'=>$status->courseid);
+                    $url = new moodle_url('/user/view.php', $urlparams);
+                    if ($status->view == assign_submission_status::GRADER_VIEW && $status->blindmarking) {
+                        $userslist[] = $member->alias;
+                    } else {
+                        $fullname = fullname($member, $status->canviewfullnames);
+                        $userslist[] = $this->output->action_link($url, $fullname);
+                    }
+                }
+                if (count($userslist) > 0) {
+                    $userstr = join(', ', $userslist);
+                    $formatteduserstr = get_string('userswhoneedtosubmit', 'assign', $userstr);
+                    $submissionsummary .= $this->output->container($formatteduserstr);
+                }
+                $o .= $this->output->container($submissionsummary, 'submissionstatus' . $status->teamsubmission->status);
+            } else {
+                if (!$status->submissionsenabled) {
+                    $o .= $this->output->container(get_string('noonlinesubmissions', 'assign'), 'submissionstatus');
+                } else {
+                    $o .= $this->output->container(get_string('nosubmission', 'assign'), 'submissionstatus');
+                }
+            }
+        }
+
+        // Is locked?
+        if ($status->locked) {
+            $o .= $this->output->container(get_string('submissionslocked', 'assign'), 'submissionlocked');
+        }
+
+        // Grading status.
+        $statusstr = '';
+        $classname = 'gradingstatus';
+        if ($status->gradingstatus == ASSIGN_GRADING_STATUS_GRADED ||
+            $status->gradingstatus == ASSIGN_GRADING_STATUS_NOT_GRADED) {
+            $statusstr = get_string($status->gradingstatus, 'assign');
+        } else {
+            $gradingstatus = 'markingworkflowstate' . $status->gradingstatus;
+            $statusstr = get_string($gradingstatus, 'assign');
+        }
+        if ($status->gradingstatus == ASSIGN_GRADING_STATUS_GRADED ||
+            $status->gradingstatus == ASSIGN_MARKING_WORKFLOW_STATE_RELEASED) {
+            $classname = 'submissiongraded';
+        } else {
+            $classname = 'submissionnotgraded';
+        }
+        $o .= $this->output->container($statusstr, $classname);
+
+        $submission = $status->teamsubmission ? $status->teamsubmission : $status->submission;
+        $duedate = $status->duedate;
+        if ($duedate > 0) {
+
+            if ($status->extensionduedate) {
+                // Extension date.
+                $duedate = $status->extensionduedate;
+            }
+
+            // Time remaining.
+            $classname = 'timeremaining';
+            if ($duedate - $time <= 0) {
+                if (!$submission ||
+                        $submission->status != ASSIGN_SUBMISSION_STATUS_SUBMITTED) {
+                    if ($status->submissionsenabled) {
+                        $remaining = get_string('overdue', 'assign', format_time($time - $duedate));
+                        $classname = 'overdue';
+                    } else {
+                        $remaining = get_string('duedatereached', 'assign');
+                    }
+                } else {
+                    if ($submission->timemodified > $duedate) {
+                        $remaining = get_string('submittedlate',
+                                              'assign',
+                                              format_time($submission->timemodified - $duedate));
+                        $classname = 'latesubmission';
+                    } else {
+                        $remaining = get_string('submittedearly',
+                                               'assign',
+                                               format_time($submission->timemodified - $duedate));
+                        $classname = 'earlysubmission';
+                    }
+                }
+            } else {
+                $remaining = get_string('paramtimeremaining', 'assign', format_time($duedate - $time));
+            }
+            $o .= $this->output->container($remaining, $classname);
+        }
+
+        // Show graders whether this submission is editable by students.
+        if ($status->view == assign_submission_status::GRADER_VIEW) {
+            if ($status->canedit) {
+                $o .= $this->output->container(get_string('submissioneditable', 'assign'), 'submissioneditable');
+            } else {
+                $o .= $this->output->container(get_string('submissionnoteditable', 'assign'), 'submissionnoteditable');
+            }
+        }
+
+        // Grading criteria preview.
+        if (!empty($status->gradingcontrollerpreview)) {
+            $o .= $this->output->container($status->gradingcontrollerpreview, 'gradingmethodpreview');
+        }
+
+        if ($submission) {
+
+            if (!$status->teamsubmission || $status->submissiongroup != false || !$status->preventsubmissionnotingroup) {
+                foreach ($status->submissionplugins as $plugin) {
+                    $pluginshowsummary = !$plugin->is_empty($submission) || !$plugin->allow_submissions();
+                    if ($plugin->is_enabled() &&
+                        $plugin->is_visible() &&
+                        $plugin->has_user_summary() &&
+                        $pluginshowsummary
+                    ) {
+
+                        $displaymode = assign_submission_plugin_submission::SUMMARY;
+                        $pluginsubmission = new assign_submission_plugin_submission($plugin,
+                            $submission,
+                            $displaymode,
+                            $status->coursemoduleid,
+                            $status->returnaction,
+                            $status->returnparams);
+                        $plugincomponent = $plugin->get_subtype() . '_' . $plugin->get_type();
+                        $o .= $this->output->container($this->render($pluginsubmission), 'assignsubmission ' . $plugincomponent);
+                    }
+                }
+            }
+        }
+
+        $o .= $this->output->container_end();
+        return $o;
+    }
+
     /**
      * Render a table containing the current status of the submission.
      *
@@ -772,6 +962,21 @@ class mod_assign_renderer extends plugin_renderer_base {
         return $o;
     }
 
+    /**
+     * Output the attempt history chooser for this assignment
+     *
+     * @param assign_attempt_history_chooser $history
+     * @return string
+     */
+    public function render_assign_attempt_history_chooser(assign_attempt_history_chooser $history) {
+        $o = '';
+
+        $context = $history->export_for_template($this);
+        $o .= $this->render_from_template('mod_assign/attempt_history_chooser', $context);
+
+        return $o;
+    }
+
     /**
      * Output the attempt history for this assignment
      *
@@ -797,7 +1002,7 @@ class mod_assign_renderer extends plugin_renderer_base {
         }
 
         $containerid = 'attempthistory' . uniqid();
-        $o .= $this->heading(get_string('attempthistory', 'assign'), 3);
+        $o .= $this->output->heading(get_string('attempthistory', 'assign'), 3);
         $o .= $this->box_start('attempthistory', $containerid);
 
         foreach ($history->submissions as $i => $submission) {
@@ -1248,5 +1453,14 @@ class mod_assign_renderer extends plugin_renderer_base {
         return $o;
     }
 
+    /**
+     * Defer to template..
+     *
+     * @param grading_app - All the data to render the grading app.
+     */
+    public function render_grading_app(grading_app $app) {
+        $context = $app->export_for_template($this);
+        return $this->render_from_template('mod_assign/grading_app', $context);
+    }
 }
 
diff --git a/mod/assign/styles.css b/mod/assign/styles.css
index 2ed075efbe8..73b08639a69 100644
--- a/mod/assign/styles.css
+++ b/mod/assign/styles.css
@@ -307,4 +307,698 @@
 }
 .path-mod-assign .editsubmissionform label[for="id_submissionstatement"] {
     display: inline-block;
-}
\ No newline at end of file
+}
+
+.path-mod-assign.layout-option-nonavbar {
+    padding-top: 0px;
+}
+
+.path-mod-assign [data-region="user-selector"] select {
+    margin-bottom: 0px;
+}
+
+.path-mod-assign [data-region="user-selector"] .alignment {
+    float: right;
+    width: 320px;
+    text-align: center;
+    margin-top: 7px;
+}
+
+.path-mod-assign [data-region="user-selector"] [data-action="previous-user"],
+.path-mod-assign [data-region="user-selector"] [data-action="next-user"] {
+    font-size: 26px;
+}
+.path-mod-assign [data-region="user-selector"] [data-action="next-user"] {
+    margin-left: -10px;
+}
+.dir-rtl.path-mod-assign [data-region="user-selector"] [data-action="next-user"] {
+    margin-right: -10px;
+}
+
+.dir-rtl.path-mod-assign [data-region="user-selector"] .alignment {
+    float: left;
+}
+
+.path-mod-assign [data-region="user-selector"] .alignment input {
+    margin-bottom: 5px;
+}
+
+.path-mod-assign [data-region="user-selector"] .alignment .form-autocomplete-downarrow {
+    top: 0;
+}
+
+.path-mod-assign [data-region="user-selector"] .form-autocomplete-selection {
+    display: none;
+}
+
+.path-mod-assign [data-region="user-selector"] .form-autocomplete-suggestions {
+    text-align: left;
+}
+.path-mod-assign [data-region="user-selector"] .form-autocomplete-suggestions {
+    margin-left: 48px;
+}
+.dir-rtl.path-mod-assign [data-region="user-selector"] .form-autocomplete-suggestions {
+    margin-right: 64px;
+}
+
+.path-mod-assign [data-region="user-filters"] {
+    font-size: small;
+}
+
+.path-mod-assign [data-region="configure-filters"] {
+    display: none;
+    text-align: left;
+    width: auto;
+    background-color: #fff;
+    background-clip: padding-box;
+    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
+    border-radius: 6px;
+    position: absolute;
+    margin-top: 28px;
+    margin-left: -140px;
+    padding: 10px 0;
+    z-index: 1;
+}
+
+.path-mod-assign [data-region="configure-filters"]::before,
+.path-mod-assign [data-region="configure-filters"]::after {
+    position: absolute;
+    left: auto;
+    display: inline-block;
+    content: '';
+    border-style: solid;
+    border-color: transparent;
+    border-top: none;
+}
+
+.path-mod-assign [data-region="configure-filters"]::before {
+    top: -7px;
+    right: 12px;
+    border-width: 7px;
+    border-bottom-color: rgba(0, 0, 0, 0.2);
+}
+
+.path-mod-assign [data-region="configure-filters"]::after {
+    top: -6px;
+    right: 13px;
+    border-width: 6px;
+    border-bottom-color: #fff;
+}
+
+.path-mod-assign.dir-rtl [data-region="configure-filters"] {
+    text-align: right;
+    margin-left: 0;
+    margin-right: -140px;
+}
+
+.path-mod-assign [data-region="configure-filters"] label {
+    padding: 3px 20px;
+}
+
+.path-mod-assign .alignment [data-region="configure-filters"] input {
+    margin-bottom: 0;
+}
+
+.path-mod-assign [data-region="grading-navigation-panel"] {
+    position: absolute;
+    top: 0;
+    left: 0;
+    width: 100%;
+    height: 6em;
+    margin: 0;
+    border-bottom: 1px solid #ddd;
+}
+
+.path-mod-assign [data-region="grading-navigation"] {
+    padding: 1em;
+}
+
+.path-mod-assign [data-region="user-info"] {
+    height: 60px;
+}
+
+.path-mod-assign [data-region="user-info"] a {
+    text-decoration: none;
+}
+
+.path-mod-assign [data-region="user-info"] .img-rounded {
+    display: block;
+    float: left;
+    margin-top: -3px;
+    margin-right: 10px;
+}
+.dir-rtl.path-mod-assign [data-region="user-info"] .img-rounded {
+    float: right;
+    margin-left: 10px;
+}
+
+.path-mod-assign [data-region="user-info"] em {
+    display: block;
+    font-style: normal;
+}
+
+.path-mod-assign [data-region="grading-actions-form"] label {
+    display: inline-block;
+}
+
+.path-mod-assign.pagelayout-embedded {
+    overflow: hidden;
+}
+
+.path-mod-assign [data-region="review-panel"] {
+    position: absolute;
+    top: 85px;
+    bottom: 60px;
+    left: 0;
+    width: 70%;
+    box-sizing: border-box;
+}
+
+.path-mod-assign [data-region="review-panel"] .pageheader {
+    border-right: 1px solid #ddd;
+}
+
+.path-mod-assign [data-region="review-panel"] .drawingregion {
+    left: 0;
+    right: 0;
+    border-color: #ddd;
+}
+
+.path-mod-assign [data-region="grade-panel"].fullwidth {
+    position: absolute;
+    top: 7em;
+    left: 0;
+    right: 0;
+    width: 99%;
+    overflow: auto;
+    bottom: 7em;
+}
+
+.path-mod-assign [data-region="grade-panel"].fullwidth [data-region="grade"] {
+    max-width: 800px;
+    margin-left: auto;
+    margin-right: auto;
+}
+
+.path-mod-assign [data-region="grade-panel"] {
+    position: absolute;
+    top: 85px;
+    bottom: 60px;
+    right: 0;
+    width: 30%;
+    overflow: auto;
+    box-sizing: border-box;
+    background-color: #f5f5f5;
+    padding: 15px;
+    padding-top: 0px;
+}
+
+.path-mod-assign [data-region="grade-panel"] h3 {
+    font-size: 18px;
+    font-weight: 500;
+}
+
+/***** Start submission status *****/
+
+.path-mod-assign [data-region="grade-panel"] div.submissionstatustable {
+    margin-bottom: 2em;
+}
+
+.path-mod-assign [data-region="grade-panel"] .submissionsummarytable {
+    margin-left: 5px;
+    margin-right: 5px;
+}
+
+.path-mod-assign [data-region="grade-panel"] .submissionsummarytable table.generaltable td {
+    padding: 8px 0;
+    background-color: transparent;
+}
+
+.path-mod-assign [data-region="grade-panel"] .submissionsummarytable .generaltable tbody > tr:nth-child(2n+1) > td,
+.path-mod-assign [data-region="grade-panel"] .submissionsummarytable .generaltable tbody tr:hover > td {
+    background-color: transparent;
+}
+
+.path-mod-assign [data-region="grade-panel"] div.submissionsummarytable table tbody tr td.c0 {
+    width: auto;
+}
+
+.path-mod-assign [data-region="grade-panel"] div.submissionsummarytable table tbody tr.lastrow td.c0,
+.path-mod-assign [data-region="grade-panel"] div.submissionsummarytable table tbody tr.lastrow td.c1 {
+    border-bottom: 1px solid #ddd;
+}
+
+.path-mod-assign [data-region="grade-panel"] td.submissionnotgraded,
+.path-mod-assign [data-region="grade-panel"] div.submissionnotgraded {
+    color: red;
+    background-color: transparent;
+}
+
+/***** End submission status *****/
+
+.path-mod-assign [data-region="grade-panel"] #id_gradeheader {
+    display: table-cell;
+}
+
+.path-mod-assign [data-region="grade-panel"] #id_gradeheader > legend {
+    visibility: hidden;
+    height: 0;
+    margin-bottom: 0;
+}
+
+.path-mod-assign [data-region="grade-panel"] .comment-area textarea[cols] {
+    width: 100%;
+    box-sizing: border-box;
+}
+
+.path-mod-assign [data-region="grade-panel"] .mform .fitem.fitem_ftext,
+.path-mod-assign [data-region="grade-panel"] .mform .fitem.fitem_f,
+.path-mod-assign [data-region="grade-panel"] .mform .fitem.fitem_feditor,
+.path-mod-assign [data-region="grade-panel"] .mform .fitem.fitem_ffilemanager  {
+    background-color: #fff;
+    border: 1px solid #ddd;
+    margin-bottom: 20px;
+}
+.path-mod-assign [data-region="grade-panel"] .mform .fitem.fitem_ftext .fitemtitle,
+.path-mod-assign [data-region="grade-panel"] .mform .fitem.fitem_f .fitemtitle,
+.path-mod-assign [data-region="grade-panel"] .mform .fitem.fitem_feditor .fitemtitle,
+.path-mod-assign [data-region="grade-panel"] .mform .fitem.fitem_ffilemanager .fitemtitle {
+    padding-left: 5px;
+    padding-right: 5px;
+}
+
+.path-mod-assign #page-content [data-region="grade-panel"] .mform:not(.unresponsive) .fcontainer .fitem.fitem_ftext .felement,
+.path-mod-assign #page-content [data-region="grade-panel"] .mform:not(.unresponsive) .fcontainer .fitem.fitem_f .felement,
+.path-mod-assign #page-content [data-region="grade-panel"] .mform:not(.unresponsive) .fcontainer .fitem.fitem_feditor .felement,
+.path-mod-assign #page-content [data-region="grade-panel"] .mform:not(.unresponsive) .fcontainer .fitem.fitem_ffilemanager .felement {
+    padding: 6px 10px 10px;
+    box-sizing: border-box;
+}
+
+.path-mod-assign #page-content [data-region="grade-panel"] .mform:not(.unresponsive) .fitem.fitem_ftext .fitemtitle,
+.path-mod-assign #page-content [data-region="grade-panel"] .mform:not(.unresponsive) .fitem.fitem_f .fitemtitle,
+.path-mod-assign #page-content [data-region="grade-panel"] .mform:not(.unresponsive) .fitem.fitem_feditor .fitemtitle,
+.path-mod-assign #page-content [data-region="grade-panel"] .mform:not(.unresponsive) .fitem.fitem_ffilemanager .fitemtitle {
+    border-bottom: 1px solid #ddd;
+    box-shadow: 0 1px 1px rgba(0,0,0,0.05);
+    padding: 6px 10px 3px;
+    box-sizing: border-box;
+}
+
+.path-mod-assign #page-content [data-region="grade-panel"] [data-region="popout-button"] img {
+    margin-left: 2px;
+    margin-right: 2px;
+    margin-top: -2px;
+}
+.path-mod-assign #page-content [data-region="grade-panel"] .popout [data-region="popout-button"] img {
+    margin-left: -6px;
+    margin-right: -6px;
+    margin-top: 4px;
+}
+
+.path-mod-assign [data-region="grade-panel"] .fitem .fstaticlabel,
+.path-mod-assign #page-content [data-region="grade-panel"] .mform:not(.unresponsive) .fitem .fitemtitle label {
+    font-weight: 500;
+}
+
+/***** Start grade *****/
+
+.path-mod-assign [data-region="grade-panel"] .mform #fitem_id_grade.fitem {
+    padding-top: 5px;
+}
+
+.path-mod-assign #page-content [data-region="grade-panel"] .mform:not(.unresponsive) #fitem_id_grade.fitem .fitemtitle {
+    display: inline-block;
+    width: auto;
+    border-bottom: none;
+    box-shadow: none;
+}
+
+.path-mod-assign #page-content [data-region="grade-panel"] .mform:not(.unresponsive) #fitem_id_grade.fitem .felement {
+    width: auto;
+    float: right;
+}
+
+.path-mod-assign #page-content .mform:not(.unresponsive) #fitem_id_grade.fitem .felement input {
+    width: 80px;
+    margin-bottom: 0;
+}
+
+/***** End grade *****/
+
+/***** Start rubric *****/
+
+.path-mod-assign [data-region="grade-panel"] .gradingform_rubric {
+    padding-bottom: 0;
+}
+
+.path-mod-assign [data-region="grade-panel"] .gradingform_rubric .criterion .description {
+    font-weight: 500;
+    min-width: 150px;
+}
+
+.path-mod-assign [data-region="grade-panel"] .gradingform_rubric .criterion .levels {
+    background-color: #fff;
+}
+
+.path-mod-assign [data-region="grade-panel"] .gradingform_rubric .criterion,
+.path-mod-assign [data-region="grade-panel"] .gradingform_rubric .criterion.even {
+    background-color: transparent;
+}
+
+.path-mod-assign [data-region="grade-panel"] .gradingform_rubric.evaluate .criterion .levels .level:hover {
+    background-color: #dff0d8;
+}
+
+.path-mod-assign [data-region="grade-panel"] .gradingform_rubric .criterion .levels .level.checked {
+    background-color: #dff0d8;
+    border: none;
+    border-left: 1px solid #ddd;
+}
+
+.path-mod-assign [data-region="grade-panel"] .gradingform_rubric .criterion .levels .level .score {
+    color: #468847;
+    font-weight: 500;
+    font-style: normal;
+    margin-top: 20px;
+}
+
+.path-mod-assign [data-region="grade-panel"] .gradingform_rubric .criterion .remark textarea {
+    margin-bottom: 0;
+}
+
+/***** End rubric *****/
+
+/***** Start marking guide *****/
+
+.path-mod-assign [data-region="grade-panel"] .gradingform_guide {
+    margin-bottom: 10px;
+}
+
+.path-mod-assign [data-region="grade-panel"] .gradingform_guide .descriptionreadonly,
+.path-mod-assign [data-region="grade-panel"] .gradingform_guide .remark,
+.path-mod-assign [data-region="grade-panel"] .gradingform_guide .score {
+    display: block;
+}
+
+.path-mod-assign [data-region="grade-panel"] .gradingform_guide .descriptionreadonly {
+    padding-top: 10px;
+}
+
+.path-mod-assign [data-region="grade-panel"] .gradingform_guide .criteriondescription {
+    margin-top: 5px;
+}
+
+.path-mod-assign [data-region="grade-panel"] .gradingform_guide .criteriondescriptionmarkers {
+    width: auto;
+    margin-top: 5px;
+}
+
+.path-mod-assign [data-region="grade-panel"] .gradingform_guide .markingguideremark {
+    margin-bottom: 10px;
+}
+
+.path-mod-assign [data-region="grade-panel"] .gradingform_guide .remark .commentchooser {
+    float: right;
+    margin-top: 2px;
+    margin-left: 0;
+}
+
+.path-mod-assign [data-region="grade-panel"] .gradingform_guide .score {
+    float: left;
+    padding-bottom: 8px;
+}
+
+.path-mod-assign [data-region="grade-panel"] .gradingform_guide .score input,
+.path-mod-assign [data-region="grade-panel"] .gradingform_guide .score div {
+    display: inline-block;
+}
+
+.path-mod-assign [data-region="grade-panel"] .gradingform_guide .criterion,
+.path-mod-assign [data-region="grade-panel"] .gradingform_guide .criterion.even {
+    background-color: transparent;
+    border-width: 0 0 1px 0;
+    padding: 8px 0;
+}
+
+.path-mod-assign [data-region="grade-panel"] .showmarkerdesc,
+.path-mod-assign [data-region="grade-panel"] .showstudentdesc {
+    background-color: #f5f5f5;
+    padding: 10px;
+}
+
+/***** End marking guide *****/
+
+.path-mod-assign [data-region="grade-panel"] .fitem.fitem_ffilemanager {
+    margin-bottom: 0;
+}
+
+/***** Start popout dialogue *****/
+
+.path-mod-assign [data-region="grade-panel"] .fitem.popout {
+    position: fixed;
+    left: 20%;
+    right: 20%;
+    top: 20%;
+    z-index: 1000;
+    border: 1px solid rgba(0, 0, 0, 0.3);
+    border-radius: 6px;
+    box-shadow: 0 3px 7px rgba(0, 0, 0, 0.3);
+}
+
+.path-mod-assign #page-content [data-region="grade-panel"] .mform:not(.unresponsive) .fcontainer .fitem.popout .fitemtitle {
+    text-align: center;
+    padding-left: 15px;
+    padding-right: 15px;
+}
+
+.path-mod-assign #page-content [data-region="grade-panel"] .mform:not(.unresponsive) .fcontainer .fitem.popout .fitemtitle label {
+    font-size: 16px;
+    line-height: 30px;
+}
+
+.path-mod-assign #page-content [data-region="grade-panel"] [data-region="popout-button"] {
+    float: right;
+}
+.dir-rtl.path-mod-assign #page-content [data-region="grade-panel"] [data-region="popout-button"] {
+    float: left;
+}
+
+.path-mod-assign #page-content [data-region="grade-panel"] .mform:not(.unresponsive) .fitem.popout .fitemtitle [data-region="popout-button"] img {
+    margin-top: -10px;
+    margin-right: -7px;
+}
+
+.path-mod-assign #page-content [data-region="grade-panel"] .mform:not(.unresponsive) .fcontainer .fitem.popout .felement {
+    padding: 10px 15px 15px;
+}
+
+/***** End popout dialogue *****/
+
+/***** Start attempt settings *****/
+
+.path-mod-assign [data-region="grade-panel"] #id_attemptsettings > legend {
+    font-size: 18px;
+    font-weight: 500;
+    line-height: 40px;
+    border-bottom: 0;
+    margin-bottom: 10px;
+}
+
+.path-mod-assign [data-region="grade-panel"] #id_attemptsettings .fcontainer {
+    display: table;
+    width: 100%;
+    padding-left: 5px;
+    padding-right: 5px;
+    margin-bottom: 10px;
+    box-sizing: border-box;
+}
+
+.path-mod-assign [data-region="grade-panel"] .mform #id_attemptsettings .fitem {
+    display: table-row;
+    margin-bottom: 0;
+}
+
+.path-mod-assign #page-content [data-region="grade-panel"] .mform:not(.unresponsive) #id_attemptsettings .fitem .fitemtitle,
+.path-mod-assign #page-content [data-region="grade-panel"] .mform:not(.unresponsive) #id_attemptsettings .fitem .felement {
+    display: table-cell;
+    float: none;
+    border-top: 1px solid #ddd;
+    padding: 8px 0;
+}
+
+.path-mod-assign #page-content [data-region="grade-panel"] .mform:not(.unresponsive) #id_attemptsettings .fitem:last-of-type .fitemtitle,
+.path-mod-assign #page-content [data-region="grade-panel"] .mform:not(.unresponsive) #id_attemptsettings .fitem:last-of-type .felement {
+    border-bottom: 1px solid #ddd;
+}
+
+.path-mod-assign [data-region="grade-panel"] #id_attemptsettings .fitem .fstaticlabel,
+.path-mod-assign [data-region="grade-panel"] .mform:not(.unresponsive) #id_attemptsettings .fitem .fitemtitle label {
+    font-weight: 400;
+}
+
+.path-mod-assign [data-region="grade-panel"] .mform:not(.unresponsive) #id_attemptsettings .fitem .felement select {
+    margin-bottom: 0;
+}
+
+.path-mod-assign [data-region="grade-panel"] [data-region="attempt-chooser"] {
+    margin-bottom: 10px;
+    vertical-align: text-bottom;
+}
+
+/***** End attempt settings *****/
+
+.path-mod-assign [data-region="grade-actions-panel"] {
+    border-top: 1px solid #ddd;
+    position: absolute;
+    bottom: 0;
+    left: 0;
+    width: 100%;
+    height: 60px;
+}
+
+.path-mod-assign [data-region="grade-actions"] {
+    padding: 1em;
+    text-align: center;
+}
+.path-mod-assign [data-region="submissions-list"] {
+    text-align: initial;
+}
+.path-mod-assign [data-region="submissions-list"] label.radio input {
+    margin-top: 4px;
+    min-width: inherit;
+}
+.path-mod-assign [data-region="overlay"] {
+    display: none;
+    z-index: 100;
+    position: absolute;
+    top: 0em;
+    left: 0;
+    width: 100%;
+    overflow: auto;
+    bottom: 0em;
+    background-color: #ddd;
+    opacity: 0.4;
+    padding-top: 4em;
+    text-align: center;
+}
+
+@media (max-width: 767px) {
+    .path-mod-assign.pagelayout-embedded {
+        overflow: auto;
+    }
+    .path-mod-assign [data-region="assignment-info"] {
+        border-bottom: 1px solid #ddd;
+        padding-bottom: 5px;
+    }
+    .path-mod-assign .page-context-header .page-header-headings {
+        margin-top: 13px;
+    }
+    .path-mod-assign [data-region="grading-navigation-panel"],
+    .path-mod-assign [data-region="review-panel"],
+    .path-mod-assign [data-region="grade-panel"],
+    .path-mod-assign [data-region="grade-actions-panel"] {
+        position: inherit;
+        width: 100%;
+        top: 0;
+        left: 0;
+        overflow: none;
+        height: auto;
+        margin-bottom: 1em;
+    }
+    .path-mod-assign [data-region="grading-navigation"] {
+        padding: 0;
+        text-align: center;
+    }
+    .path-mod-assign [data-region="grade-panel"] {
+        margin-bottom: 2em;
+    }
+    .path-mod-assign [data-region="grade-panel"] [data-region="popout-button"] {
+        display: none;
+    }
+    .path-mod-assign [data-region="review-panel"] .pageheader {
+        border-right: none;
+    }
+    .path-mod-assign.pagelayout-popup {
+        overflow: inherit;
+    }
+    .path-mod-assign [data-region="grading-navigation"] [data-region="user-info"] {
+        text-align: left;
+        width: auto;
+        display: inline-block;
+        margin: 0 auto;
+    }
+    .path-mod-assign [data-region="user-selector"] .alignment {
+        float: none;
+        margin: 0 auto 10px;
+    }
+}
+
+/** Start of CSS to make forms vertical in the grading panel (taken from theme/bootstrapbase/less/moodle/forms.less). */
+
+.path-mod-assign [data-region="grade-panel"] .mform .fitem .fitemtitle {
+    display: block;
+    margin-top: 4px;
+    margin-bottom: 4px;
+    text-align: left;
+    width: 100%;
+}
+.path-mod-assign [data-region="grade-panel"] .mform .fitem .felement {
+    margin-left: 0;
+    width: 100%;
+    float: left;
+    padding-left: 0;
+    padding-right: 0;
+}
+.path-mod-assign [data-region="grade-panel"] .mform .fitem .fstatic:empty {
+    display: none;
+}
+.path-mod-assign [data-region="grade-panel"] .mform .fitem .fcheckbox > span,
+.path-mod-assign [data-region="grade-panel"] .mform .fitem .fradio > span,
+.path-mod-assign [data-region="grade-panel"] .mform .fitem .fgroup > span,
+    margin-top: 4px;
+}
+.path-mod-assign [data-region="grade-panel"] .mform .femptylabel .fitemtitle {
+    display: inline-block;
+    width: auto;
+    margin-right: 8px;
+}
+.path-mod-assign [data-region="grade-panel"] .mform .femptylabel .felement {
+    display: inline-block;
+    margin-top: 4px;
+    padding-top: 5px;
+    width: auto;
+}
+.path-mod-assign [data-region="grade-panel"] .mform .fitem_fcheckbox .fitemtitle,
+.path-mod-assign [data-region="grade-panel"] .mform .fitem_fcheckbox .felement {
+    display: inline-block;
+    width: auto;
+}
+.path-mod-assign [data-region="grade-panel"] .mform .fitem_fcheckbox .felement {
+    padding: 6px;
+}
+
+.dir-rtl.path-mod-assign [data-region="grade-panel"] .mform .femptylabel .fitemtitle {
+    margin-right: 0px;
+    margin-left: 8px;
+}
+.dir-rtl.path-mod-assign [data-region="grade-panel"] .mform .fitem .fitemtitle {
+    text-align: right;
+}
+.dir-rtl.path-mod-assign [data-region="grade-panel"] .mform .fitem .felement {
+    margin-right: 0;
+    float: right;
+    padding-right: 0;
+    padding-left: 0;
+}
+.dir-rtl.path-mod-assign [data-region="grade-panel"] .mform .fitem_checkbox .felement {
+    float: right;
+}
+/** End of CSS to make forms vertical in the grading panel (taken from theme/bootstrapbase/less/moodle/forms.less). */
+
+/** Styles to fix base theme **/
+.path-mod-assign #page,
+.path-mod-assign #page-content {
+    position: initial;
+}
+/** End of base fixes **/
diff --git a/mod/assign/templates/attempt_history_chooser.mustache b/mod/assign/templates/attempt_history_chooser.mustache
new file mode 100644
index 00000000000..cbe8f512695
--- /dev/null
+++ b/mod/assign/templates/attempt_history_chooser.mustache
@@ -0,0 +1,16 @@
+{{#submissioncount}}
+<div>
+    <a class="btn" href="#" data-region="attempt-chooser" data-submissions="submissions-list-{{uniqid}}">{{#str}}viewadifferentattempt, mod_assign{{/str}}</a>
+    <div class="hide" id="submissions-list-{{uniqid}}">
+        <div data-region="submissions-list">
+        {{#submissions}}
+            <label class="radio">
+                <input type="radio" name="select-attemptnumber" value="{{attemptnumber}}"/>
+                {{attemptsummary}}
+                <br><em>{{statussummary}}</em>
+            </label>
+        {{/submissions}}
+        </div>
+    </div>
+</div>
+{{/submissioncount}}
diff --git a/mod/assign/templates/grading_actions.mustache b/mod/assign/templates/grading_actions.mustache
new file mode 100644
index 00000000000..ab4e365dfb2
--- /dev/null
+++ b/mod/assign/templates/grading_actions.mustache
@@ -0,0 +1,46 @@
+{{!
+    This file is part of Moodle - http://moodle.org/
+
+    Moodle is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Moodle is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+}}
+{{!
+    @template mod_assign/grading_actions
+
+    Actions panel at the bottom of the assignment grading UI.
+
+    Classes required for JS:
+    * none
+
+    Data attributes required for JS:
+    * data-region
+
+    Context variables required for this template:
+    * see mod/assign/classes/output/grading_app.php
+
+    Example context (json):
+    This template is initially hidden, and is only displayed after the current user info has been loaded.
+}}
+<form data-region="grading-actions-form" class="hide">
+    <label>{{#str}}sendstudentnotifications, mod_assign{{/str}}
+           <input type="checkbox" name="sendstudentnotifications"
+                  {{#defaultsendnotifications}}checked="checked"{{/defaultsendnotifications}} />
+    </label>
+    <button type="submit" class="btn btn-primary" name="savechanges">{{#str}}savechanges{{/str}}</button>
+    <button type="submit" class="btn" name="resetbutton">{{#str}}reset{{/str}}</button>
+</form>
+{{#js}}
+require(['mod_assign/grading_actions'], function(GradingActions) {
+    new GradingActions('[data-region="grade-actions"]');
+});
+{{/js}}
diff --git a/mod/assign/templates/grading_app.mustache b/mod/assign/templates/grading_app.mustache
new file mode 100644
index 00000000000..62221f61551
--- /dev/null
+++ b/mod/assign/templates/grading_app.mustache
@@ -0,0 +1,56 @@
+{{!
+    This file is part of Moodle - http://moodle.org/
+
+    Moodle is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Moodle is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+}}
+{{!
+    @template mod_assign/grading_app
+
+    Actions panel at the bottom of the assignment grading UI.
+
+    Classes required for JS:
+    * Uses some bootstrap classes, but for visual appeal only.
+
+    Data attributes required for JS:
+    * data-region, data-first-userid, data-courseid, data-contextid, data-assignmentid
+
+    Context variables required for this template:
+    * see mod/assign/classes/output/grading_app.php
+
+    Example context (json):
+    This template includes ajax functionality, so it cannot be shown in the template library.
+}}
+<div data-region="grading-navigation-panel" data-first-userid="{{userid}}" data-courseid="{{courseid}}" data-showuseridentity="{{showuseridentity}}">
+{{> mod_assign/grading_navigation }}
+</div>
+<div data-region="grade-panel" {{^showreview}}class="fullwidth"{{/showreview}}>
+<div data-region="grade" data-contextid="{{contextid}}" data-assignmentid="{{assignmentid}}">
+{{> mod_assign/grading_panel }}
+</div>
+</div>
+{{#showreview}}
+<div data-region="review-panel">
+<div data-region="review">
+{{> mod_assign/review_panel }}
+</div>
+</div>
+{{/showreview}}
+<div data-region="grade-actions-panel">
+<div data-region="grade-actions">
+{{> mod_assign/grading_actions }}
+</div>
+</div>
+<div data-region="overlay" class="moodle-has-zindex">
+{{> mod_assign/grading_save_in_progress }}
+</div>
diff --git a/mod/assign/templates/grading_navigation.mustache b/mod/assign/templates/grading_navigation.mustache
new file mode 100644
index 00000000000..51488d0511d
--- /dev/null
+++ b/mod/assign/templates/grading_navigation.mustache
@@ -0,0 +1,73 @@
+{{!
+    This file is part of Moodle - http://moodle.org/
+
+    Moodle is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Moodle is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+}}
+{{!
+    @template mod_assign/grading_navigation
+
+    Actions panel at the bottom of the assignment grading UI.
+
+    Classes required for JS:
+    * none
+
+    Data attributes required for JS:
+    * data-region, data-assignmentid, data-groupid
+
+    Context variables required for this template:
+    * see mod/assign/classes/output/grading_app.php
+
+    Example context (json):
+    This template includes ajax functionality, so it cannot be shown in the template library.
+}}
+<div data-region="grading-navigation" class="row-fluid">
+<div data-region="assignment-info" class="span4">
+<a href="{{config.wwwroot}}/course/view.php?id={{courseid}}">{{coursename}}</a><br/>
+<a href="{{config.wwwroot}}/mod/assign/view.php?id={{cmid}}">{{name}}</a>
+{{#caneditsettings}}
+<a href="{{config.wwwroot}}/course/modedit.php?update={{cmid}}&return=1">{{#pix}}t/edit, core,{{#str}}editsettings{{/str}}{{/pix}}</a>
+{{/caneditsettings}}
+<div role="tooltip" id="tooltip-{{uniqid}}" class="accesshide">
+{{#duedate}}
+{{#str}}duedatecolon, mod_assign, {{duedatestr}}{{/str}}
+{{/duedate}}
+
+{{#cutoffdate}}
+<br>{{cutoffdatestr}}
+{{/cutoffdate}}
+
+{{#duedate}}
+<br>{{timeremainingstr}}
+{{/duedate}}
+</div>
+{{#duedate}}
+<br/><small data-region="assignment-tooltip" aria-describedby="tooltip-{{uniqid}}">{{#str}}duedatecolon, mod_assign, {{duedatestr}}{{/str}}</small>
+{{/duedate}}
+</span>
+</div>
+<div data-region="user-info" class="span4" data-assignmentid="{{assignmentid}}" data-groupid="{{groupid}}">
+    {{> mod_assign/grading_navigation_user_info }}
+</div>
+<div data-region="user-selector" class="span4">
+    <div class="alignment">
+        {{> mod_assign/grading_navigation_user_selector }}
+    </div>
+</div>
+</div>
+{{#js}}
+require(['mod_assign/grading_navigation', 'core/tooltip'], function(GradingNavigation, ToolTip) {
+    var nav = new GradingNavigation('[data-region="user-selector"]');
+    var tooltip = new ToolTip('[data-region="assignment-tooltip"]');
+});
+{{/js}}
diff --git a/mod/assign/templates/grading_navigation_no_users.mustache b/mod/assign/templates/grading_navigation_no_users.mustache
new file mode 100644
index 00000000000..beb59a180b0
--- /dev/null
+++ b/mod/assign/templates/grading_navigation_no_users.mustache
@@ -0,0 +1,34 @@
+{{!
+    This file is part of Moodle - http://moodle.org/
+
+    Moodle is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Moodle is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+}}
+{{!
+    @template mod_assign/grading_navigation_no_users
+
+    Notification when no users are available (given the current filters).
+
+    Classes required for JS:
+    * none
+
+    Data attributes required for JS:
+    * None
+
+    Context variables required for this template:
+    * None
+
+    Example context (json):
+    { }
+}}
+<h3>{{#str}}nousersselected, mod_assign{{/str}}</h3>
diff --git a/mod/assign/templates/grading_navigation_user_info.mustache b/mod/assign/templates/grading_navigation_user_info.mustache
new file mode 100644
index 00000000000..30e16f1eca3
--- /dev/null
+++ b/mod/assign/templates/grading_navigation_user_info.mustache
@@ -0,0 +1,40 @@
+{{!
+    This file is part of Moodle - http://moodle.org/
+
+    Moodle is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Moodle is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+}}
+{{!
+    @template mod_assign/grading_navigation_user_info
+
+    Initial template for the user info panel - until a user is selected
+    a loading spinner will be displayed.
+
+    Classes required for JS:
+    * none
+
+    Data attributes required for JS:
+    * None
+
+    Context variables required for this template:
+    * None
+
+    Example context (json):
+    { }
+}}
+{{> mod_assign/loading }}
+{{#js}}
+require(['mod_assign/grading_navigation_user_info'], function(UserInfo) {
+    new UserInfo('[data-region="user-info"]');
+});
+{{/js}}
diff --git a/mod/assign/templates/grading_navigation_user_selector.mustache b/mod/assign/templates/grading_navigation_user_selector.mustache
new file mode 100644
index 00000000000..0683cc0585b
--- /dev/null
+++ b/mod/assign/templates/grading_navigation_user_selector.mustache
@@ -0,0 +1,67 @@
+{{!
+    This file is part of Moodle - http://moodle.org/
+
+    Moodle is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Moodle is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+}}
+{{!
+    @template mod_assign/grading_navigation_user_selector
+
+    The template HTML for the user selector in the top right corner.
+
+    Classes required for JS:
+    * none
+
+    Data attributes required for JS:
+    * data-action, data-assignmentid, data-groupid, data-region
+
+    Context variables required for this template:
+    * see mod/assign/classes/output/grading_app.php
+
+    Example context (json):
+    This template uses ajax functionality, so it cannot be shown in the template library.
+}}
+<a href="#previous" data-action="previous-user">{{larrow}}</a>
+<span>
+<select data-action="change-user" data-assignmentid="{{assignmentid}}" data-groupid="{{groupid}}">
+</select>
+</span>
+<a href="#next" data-action="next-user">{{rarrow}}</a>
+
+<br>
+
+<span data-region="user-count">
+<small>
+<span data-region="user-count-summary">{{#str}}xofy, mod_assign, { "x": "{{index}}", "y": "{{count}}" }{{/str}}</span>
+</small>
+</span>
+
+<span data-region="configure-filters" id="filter-configuration-{{uniqid}}" class="well well-small">
+<form>
+<label><input type="checkbox" name="filter_submitted">{{#str}}filtersubmitted, mod_assign{{/str}}</label>
+<label><input type="checkbox" name="filter_notsubmitted">{{#str}}filternotsubmitted, mod_assign{{/str}}</label>
+<label><input type="checkbox" name="filter_requiregrading">{{#str}}filterrequiregrading, mod_assign{{/str}}</label>
+</form>
+</span>
+
+<a href="#" data-region="user-filters" title="{{#str}}changefilters, mod_assign{{/str}}" aria-expanded="false" aria-controls="filter-configuration-{{uniqid}}">
+<span class="accesshide">
+{{#filters}}
+{{filtername}}
+{{/filters}}
+{{^filters}}
+{{#str}}nofilters, mod_assign{{/str}}
+{{/filters}}
+</span>
+{{#pix}}i/filter{{/pix}}
+</a>
diff --git a/mod/assign/templates/grading_navigation_user_summary.mustache b/mod/assign/templates/grading_navigation_user_summary.mustache
new file mode 100644
index 00000000000..f9032b38047
--- /dev/null
+++ b/mod/assign/templates/grading_navigation_user_summary.mustache
@@ -0,0 +1,40 @@
+{{!
+    This file is part of Moodle - http://moodle.org/
+
+    Moodle is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Moodle is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+}}
+{{!
+    @template mod_assign/grading_navigation_user_summary
+
+    Shown when the real data for a user has been loaded. Display in the top left corner.
+
+    Classes required for JS:
+    * none
+
+    Data attributes required for JS:
+    * data-region, data-assignmentid, data-groupid
+
+    Context variables required for this template:
+    * id, courseid, all fields from mod_assign_list_participants
+
+    Example context (json):
+    { 
+        "id": "5",
+        "fullname": "Mr T",
+        "hasidentity": true,
+        "identity": "t@example.org, T"
+        "profileimageurl": "https://moodle.org/pix/u/f3.png"
+    }
+}}
+<h4><a href="{{globals.config.wwwroot}}/user/view.php?id={{id}}&course={{courseid}}">{{#profileimageurl}}<img src="{{profileimageurl}}" class="img-rounded" height="40" role="presentation"/>{{/profileimageurl}} {{fullname}}{{#hasidentity}}<em><small> {{identity}} </small></em>{{/hasidentity}}</a></h4>
diff --git a/mod/assign/templates/grading_panel.mustache b/mod/assign/templates/grading_panel.mustache
new file mode 100644
index 00000000000..7ac97dfb649
--- /dev/null
+++ b/mod/assign/templates/grading_panel.mustache
@@ -0,0 +1,39 @@
+{{!
+    This file is part of Moodle - http://moodle.org/
+
+    Moodle is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Moodle is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+}}
+{{!
+    @template mod_assign/grading_panel
+
+    Shown a place holder until the real content is fetched via ajax.
+
+    Classes required for JS:
+    * none
+
+    Data attributes required for JS:
+    * None
+
+    Context variables required for this template:
+    * None
+
+    Example context (json):
+    This template loads it's content via ajax, so it cannot be shown in the template library.
+}}
+{{> mod_assign/loading }}
+{{#js}}
+require(['mod_assign/grading_panel'], function(GradingPanel) {
+    new GradingPanel('[data-region="grade"]');
+});
+{{/js}}
diff --git a/mod/assign/templates/grading_save_in_progress.mustache b/mod/assign/templates/grading_save_in_progress.mustache
new file mode 100644
index 00000000000..a15ddf8e8b4
--- /dev/null
+++ b/mod/assign/templates/grading_save_in_progress.mustache
@@ -0,0 +1,35 @@
+{{!
+    This file is part of Moodle - http://moodle.org/
+
+    Moodle is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Moodle is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+}}
+{{!
+    @template mod_assign/grading_save_in_progress
+
+    Shown in an overlay when the grading form has been submitted, and we are
+    waiting for a response.
+
+    Classes required for JS:
+    * none
+
+    Data attributes required for JS:
+    * None
+
+    Context variables required for this template:
+    * None
+
+    Example context (json):
+    { "id": "4" }
+}}
+<h3>{{#str}}savingchanges, mod_assign{{/str}} {{> mod_assign/loading }}</h3>
diff --git a/mod/assign/templates/list_participant_user_summary.mustache b/mod/assign/templates/list_participant_user_summary.mustache
new file mode 100644
index 00000000000..e3df9f2d1b1
--- /dev/null
+++ b/mod/assign/templates/list_participant_user_summary.mustache
@@ -0,0 +1,41 @@
+{{!
+    This file is part of Moodle - http://moodle.org/
+
+    Moodle is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Moodle is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+}}
+{{!
+    @template mod_assign/list_participant_user_summary
+
+    Shown as the options for the list of users in the user picker on the grading page.
+
+    Classes required for JS:
+    * none
+
+    Data attributes required for JS:
+    * None
+
+    Context variables required for this template:
+    * fullname
+    * requiregrading
+    * identity - list of only the visible identity fields
+    * list of fields from mod_assign_list_participants webservice
+
+    Example context (json):
+    { "id": "4",
+      "fullname": "Mr T",
+      "requiregrading": "true",
+      "identity": "email, phone, etc"
+    }
+}}
+<span>{{fullname}} <small>{{identity}}</small> {{#requiregrading}}<abbr title="{{#str}}filterrequiregrading, mod_assign{{/str}}">*</abbr>{{/requiregrading}}</span>
diff --git a/mod/assign/templates/loading.mustache b/mod/assign/templates/loading.mustache
new file mode 100644
index 00000000000..26fbc4df40f
--- /dev/null
+++ b/mod/assign/templates/loading.mustache
@@ -0,0 +1,34 @@
+{{!
+    This file is part of Moodle - http://moodle.org/
+
+    Moodle is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Moodle is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+}}
+{{!
+    @template mod_assign/loading
+
+    Loading spinner shown while waiting for an ajax request
+
+    Classes required for JS:
+    * None
+
+    Data attibutes required for JS:
+    * None
+
+    Context variables required for this template:
+    * None
+
+    Example context (json):
+    { }
+}}
+{{#pix}}y/loading, core, {{#str}}loading, mod_assign{{/str}}{{/pix}}
diff --git a/mod/assign/templates/popout_button.mustache b/mod/assign/templates/popout_button.mustache
new file mode 100644
index 00000000000..08d1914b969
--- /dev/null
+++ b/mod/assign/templates/popout_button.mustache
@@ -0,0 +1 @@
+<a href="#" data-region="popout-button">{{#pix}}e/fullscreen,core,{{#str}}togglezoom, mod_assign{{/str}}{{/pix}}</a>
diff --git a/mod/assign/templates/review_panel.mustache b/mod/assign/templates/review_panel.mustache
new file mode 100644
index 00000000000..ba5347417c5
--- /dev/null
+++ b/mod/assign/templates/review_panel.mustache
@@ -0,0 +1,34 @@
+{{!
+    This file is part of Moodle - http://moodle.org/
+
+    Moodle is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Moodle is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+}}
+{{!
+    @template mod_assign/review_panel
+
+    Show a placeholder in the review panel until something injects some content.
+
+    Classes required for JS:
+    * None
+
+    Data attibutes required for JS:
+    * None
+
+    Context variables required for this template:
+    * None
+
+    Example context (json):
+    { }
+}}
+{{> mod_assign/loading }}
diff --git a/mod/assign/tests/base_test.php b/mod/assign/tests/base_test.php
index fb3d213816e..57c234b7bb7 100644
--- a/mod/assign/tests/base_test.php
+++ b/mod/assign/tests/base_test.php
@@ -310,11 +310,15 @@ class testable_assign extends assign {
     }
 
     public function testable_view_batch_set_workflow_state($selectedusers) {
+        global $PAGE;
+        $PAGE->set_url('/mod/assign/view.php');
         $mform = $this->testable_grading_batch_operations_form('setmarkingworkflowstate', $selectedusers);
         return parent::view_batch_set_workflow_state($mform);
     }
 
     public function testable_view_batch_markingallocation($selectedusers) {
+        global $PAGE;
+        $PAGE->set_url('/mod/assign/view.php');
         $mform = $this->testable_grading_batch_operations_form('setmarkingallocation', $selectedusers);
         return parent::view_batch_markingallocation($mform);
     }
diff --git a/mod/assign/tests/behat/allow_another_attempt.feature b/mod/assign/tests/behat/allow_another_attempt.feature
index f03c9b2222e..77154ae5412 100644
--- a/mod/assign/tests/behat/allow_another_attempt.feature
+++ b/mod/assign/tests/behat/allow_another_attempt.feature
@@ -38,11 +38,13 @@ Feature: In an assignment, students start a new attempt based on their previous
     And I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
-    And I click on "Grade Student 1" "link" in the "Student 1" "table_row"
+    And I follow "View all submissions"
+    And I click on "Grade" "link" in the "Student 1" "table_row"
     And I set the following fields to these values:
       | Allow another attempt | 1 |
     And I press "Save changes"
+    And I press "Ok"
+    And I click on "Edit settings" "link"
     And I log out
     And I log in as "student1"
     And I follow "Course 1"
@@ -53,8 +55,8 @@ Feature: In an assignment, students start a new attempt based on their previous
     And I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
-    And I click on "Grade Student 1" "link" in the "Student 1" "table_row"
+    And I follow "View all submissions"
+    And I click on "Grade" "link" in the "Student 1" "table_row"
     And I should see "I'm the student first submission"
 
   @javascript @_alert
@@ -110,7 +112,7 @@ Feature: In an assignment, students start a new attempt based on their previous
     And I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    When I follow "View/grade all submissions"
+    When I follow "View all submissions"
     Then "Student 1" row "Status" column of "generaltable" table should contain "Submitted for grading"
     And "Student 2" row "Status" column of "generaltable" table should contain "Submitted for grading"
     And "Student 3" row "Status" column of "generaltable" table should contain "No submission"
@@ -140,12 +142,12 @@ Feature: In an assignment, students start a new attempt based on their previous
 #    And I log in as "teacher1"
 #    And I follow "Course 1"
 #    And I follow "Test assignment name"
-#    And I follow "View/grade all submissions"
+#    And I follow "View all submissions"
 #    And "Student 1" row "Status" column of "generaltable" table should contain "Reopened"
 #    And "Student 2" row "Status" column of "generaltable" table should contain "Reopened"
 #    And "Student 3" row "Status" column of "generaltable" table should contain "Submitted for grading"
 #    And "Student 4" row "Status" column of "generaltable" table should contain "Submitted for grading"
-#    And I click on "Grade Student 3" "link" in the "Student 3" "table_row"
+#    And I click on "Grade " "link" in the "Student 3" "table_row"
 #    And I set the following fields to these values:
 #      | Allow another attempt | 1 |
 #    And I press "Save changes"
@@ -162,6 +164,6 @@ Feature: In an assignment, students start a new attempt based on their previous
 #    And I log in as "teacher1"
 #    And I follow "Course 1"
 #    And I follow "Test assignment name"
-#    And I follow "View/grade all submissions"
-#    And I click on "Grade Student 4" "link" in the "Student 1" "table_row"
+#    And I follow "View all submissions"
+#    And I click on "Grade" "link" in the "Student 1" "table_row"
     #And I should see "This is attempt 2 (3 attempts allowed)"
diff --git a/mod/assign/tests/behat/comment_inline.feature b/mod/assign/tests/behat/comment_inline.feature
index 13bebcfbadb..73a4c1d69cc 100644
--- a/mod/assign/tests/behat/comment_inline.feature
+++ b/mod/assign/tests/behat/comment_inline.feature
@@ -40,14 +40,17 @@ Feature: In an assignment, teachers can edit a students submission inline
     When I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
-    And I click on "Grade Student 1" "link" in the "Student 1" "table_row"
+    And I follow "View all submissions"
+    And I click on "Grade" "link" in the "Student 1" "table_row"
     And I set the following fields to these values:
       | Grade out of 100 | 50 |
       | Feedback comments | I'm the teacher feedback |
     And I upload "lib/tests/fixtures/empty.txt" file to "Feedback files" filemanager
     And I press "Save changes"
-    And I press "Continue"
+    And I press "Ok"
+    And I click on "Edit settings" "link"
+    And I follow "Test assignment name"
+    And I follow "View all submissions"
     Then I should see "50.00" in the "Student 1" "table_row"
     And I should see "Submitted for grading" in the "Student 1" "table_row"
     And I should see "Graded" in the "Student 1" "table_row"
diff --git a/mod/assign/tests/behat/display_error_message_onbadformat.feature b/mod/assign/tests/behat/display_error_message_onbadformat.feature
index d6db5ab2c8e..feae3bc0649 100644
--- a/mod/assign/tests/behat/display_error_message_onbadformat.feature
+++ b/mod/assign/tests/behat/display_error_message_onbadformat.feature
@@ -28,8 +28,8 @@ Feature: Check that the assignment grade can not be input in a wrong format.
       | Description | Test assignment description |
       | Use marking workflow | Yes |
     When I follow "Test assignment name"
-    Then I follow "View/grade all submissions"
-    And I click on "Grade Student 1" "link" in the "Student 1" "table_row"
+    Then I follow "View all submissions"
+    And I click on "Grade" "link" in the "Student 1" "table_row"
     And I set the field "Grade out of 100" to "50,,6"
     And I press "Save changes"
     And I should see "The grade provided could not be understood: 50,,6"
@@ -58,8 +58,8 @@ Feature: Check that the assignment grade can not be input in a wrong format.
       | Description | Test assignment description |
       | Use marking workflow | Yes |
     When I follow "Test assignment name"
-    Then I follow "View/grade all submissions"
-    And I click on "Grade Student 1" "link" in the "Student 1" "table_row"
+    Then I follow "View all submissions"
+    And I click on "Grade" "link" in the "Student 1" "table_row"
     And I set the field "Grade out of 100" to "50..6"
     And I press "Save changes"
     And I should see "The grade provided could not be understood: 50..6"
diff --git a/mod/assign/tests/behat/display_grade.feature b/mod/assign/tests/behat/display_grade.feature
index a4fe583cc03..49c03c0b78c 100644
--- a/mod/assign/tests/behat/display_grade.feature
+++ b/mod/assign/tests/behat/display_grade.feature
@@ -28,11 +28,14 @@ Feature: Check that the assignment grade can be updated correctly
       | Description | Test assignment description |
       | Use marking workflow | Yes |
     When I follow "Test assignment name"
-    Then I follow "View/grade all submissions"
-    And I click on "Grade Student 1" "link" in the "Student 1" "table_row"
+    Then I follow "View all submissions"
+    And I click on "Grade" "link" in the "Student 1" "table_row"
     And I set the field "Grade out of 100" to "50"
     And I press "Save changes"
-    And I press "Continue"
+    And I press "Ok"
+    And I click on "Edit settings" "link"
+    And I follow "Test assignment name"
+    And I follow "View all submissions"
     And "Student 1" row "Grade" column of "generaltable" table should contain "50.00"
 
   @javascript
@@ -61,9 +64,12 @@ Feature: Check that the assignment grade can be updated correctly
       | Students submit in groups | Yes |
       | Group mode | No groups |
     When I follow "Test assignment name"
-    Then I follow "View/grade all submissions"
-    And I click on "Grade Student 1" "link" in the "Student 1" "table_row"
+    Then I follow "View all submissions"
+    And I click on "Grade" "link" in the "Student 1" "table_row"
     And I set the field "Grade out of 100" to "50"
     And I press "Save changes"
-    And I press "Continue"
+    And I press "Ok"
+    And I click on "Edit settings" "link"
+    And I follow "Test assignment name"
+    And I follow "View all submissions"
     And "Student 1" row "Grade" column of "generaltable" table should contain "50.00"
diff --git a/mod/assign/tests/behat/edit_previous_feedback.feature b/mod/assign/tests/behat/edit_previous_feedback.feature
index 89c125aa010..a787fdb6adc 100644
--- a/mod/assign/tests/behat/edit_previous_feedback.feature
+++ b/mod/assign/tests/behat/edit_previous_feedback.feature
@@ -40,13 +40,15 @@ Feature: In an assignment, teachers can edit feedback for a students previous su
     And I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
-    And I click on "Grade Student 2" "link" in the "Student 2" "table_row"
+    And I follow "View all submissions"
+    And I click on "Grade" "link" in the "Student 2" "table_row"
     And I set the following fields to these values:
       | Grade | 49 |
       | Feedback comments | I'm the teacher first feedback |
       | Allow another attempt | Yes |
     And I press "Save changes"
+    And I click on "Ok" "button"
+    And I click on "Edit settings" "link"
     And I log out
     And I log in as "student2"
     And I follow "Course 1"
@@ -56,13 +58,17 @@ Feature: In an assignment, teachers can edit feedback for a students previous su
     When I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
-    And I click on "Grade Student 2" "link" in the "Student 2" "table_row"
-    And I click on ".mod-assign-history-link" "css_element"
+    And I follow "View all submissions"
+    And I click on "Grade" "link" in the "Student 2" "table_row"
+    And I click on "View a different attempt" "link"
+    And I click on "//div[contains(concat(' ', normalize-space(@class), ' '), ' confirmation-dialogue ')]//input[@value='0']" "xpath_element"
+    And I click on "View" "button"
     And I set the following fields to these values:
       | Grade | 50 |
       | Feedback comments | I'm the teacher second feedback |
     And I press "Save changes"
+    And I click on "Ok" "button"
+    And I click on "Edit settings" "link"
     And I log out
     Then I log in as "student2"
     And I follow "Course 1"
diff --git a/mod/assign/tests/behat/filter_by_marker.feature b/mod/assign/tests/behat/filter_by_marker.feature
index dbdddfcb26f..864777db6ce 100644
--- a/mod/assign/tests/behat/filter_by_marker.feature
+++ b/mod/assign/tests/behat/filter_by_marker.feature
@@ -32,15 +32,17 @@ Feature: In an assignment, teachers can filter displayed submissions by assigned
       | Use marking workflow | Yes |
       | Use marking allocation | Yes |
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
-    And I click on "Grade Student 1" "link" in the "Student 1" "table_row"
+    And I follow "View all submissions"
+    And I click on "Grade" "link" in the "Student 1" "table_row"
     And I set the field "allocatedmarker" to "Marker 1"
-    And I click on "Save changes" "button"
+    And I press "Save changes"
+    And I press "Ok"
+    And I click on "Edit settings" "link"
     And I log out
     When I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
+    And I follow "View all submissions"
     And I set the field "markerfilter" to "Marker 1"
     Then I should see "Student 1"
     And I should not see "Student 2"
diff --git a/mod/assign/tests/behat/grading_status.feature b/mod/assign/tests/behat/grading_status.feature
index 89f7b561bf4..27f95d80e44 100644
--- a/mod/assign/tests/behat/grading_status.feature
+++ b/mod/assign/tests/behat/grading_status.feature
@@ -50,14 +50,17 @@ Feature: View the grading status of an assignment
     And I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
+    And I follow "View all submissions"
     And I should see "Not marked" in the "Student 1" "table_row"
-    And I click on "Grade Student 1" "link" in the "Student 1" "table_row"
+    And I click on "Grade" "link" in the "Student 1" "table_row"
     And I set the field "Grade out of 100" to "50"
     And I set the field "Marking workflow state" to "In review"
     And I set the field "Feedback comments" to "Great job! Lol, not really."
     And I press "Save changes"
-    And I press "Continue"
+    And I press "Ok"
+    And I click on "Edit settings" "link"
+    And I follow "Test assignment name"
+    And I follow "View all submissions"
     And I should see "In review" in the "Student 1" "table_row"
     And I log out
     # View the grading status as a student.
@@ -74,12 +77,15 @@ Feature: View the grading status of an assignment
     And I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
+    And I follow "View all submissions"
     And I should see "In review" in the "Student 1" "table_row"
-    And I click on "Grade Student 1" "link" in the "Student 1" "table_row"
+    And I click on "Grade" "link" in the "Student 1" "table_row"
     And I set the field "Marking workflow state" to "Released"
     And I press "Save changes"
-    And I press "Continue"
+    And I press "Ok"
+    And I click on "Edit settings" "link"
+    And I follow "Test assignment name"
+    And I follow "View all submissions"
     And I should see "Released" in the "Student 1" "table_row"
     And I log out
     # View the grading status as a student.
@@ -96,12 +102,15 @@ Feature: View the grading status of an assignment
     And I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
+    And I follow "View all submissions"
     And I should see "Released" in the "Student 1" "table_row"
-    And I click on "Grade Student 1" "link" in the "Student 1" "table_row"
+    And I click on "Grade" "link" in the "Student 1" "table_row"
     And I set the field "Marking workflow state" to "In marking"
     And I press "Save changes"
-    And I press "Continue"
+    And I press "Ok"
+    And I click on "Edit settings" "link"
+    And I follow "Test assignment name"
+    And I follow "View all submissions"
     And I should see "In marking" in the "Student 1" "table_row"
     # The grade should also remain displayed as it's stored in the assign DB tables, but the final grade should be empty.
     And "Student 1" row "Grade" column of "generaltable" table should contain "50.00"
@@ -137,13 +146,16 @@ Feature: View the grading status of an assignment
     And I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
+    And I follow "View all submissions"
     And I should not see "Graded" in the "Student 1" "table_row"
-    And I click on "Grade Student 1" "link" in the "Student 1" "table_row"
+    And I click on "Grade" "link" in the "Student 1" "table_row"
     And I set the field "Grade out of 100" to "50"
     And I set the field "Feedback comments" to "Great job! Lol, not really."
     And I press "Save changes"
-    And I press "Continue"
+    And I press "Ok"
+    And I click on "Edit settings" "link"
+    And I follow "Test assignment name"
+    And I follow "View all submissions"
     And I should see "Graded" in the "Student 1" "table_row"
     And I log out
     # View the grading status as a student.
diff --git a/mod/assign/tests/behat/grant_extension.feature b/mod/assign/tests/behat/grant_extension.feature
index 36172750c2f..b2a543623bd 100644
--- a/mod/assign/tests/behat/grant_extension.feature
+++ b/mod/assign/tests/behat/grant_extension.feature
@@ -35,7 +35,7 @@ Feature: Grant an extension to an offline student
     And I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    When I follow "View/grade all submissions"
+    When I follow "View all submissions"
     And I click on "Edit" "link" in the "Student 1" "table_row"
     And I follow "Grant extension"
     And I should see "Student 1 (student1@example.com)"
@@ -56,7 +56,7 @@ Feature: Grant an extension to an offline student
     And I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    When I follow "View/grade all submissions"
+    When I follow "View all submissions"
     And I set the field "selectall" to "1"
     And I set the field "operation" to "Grant extension"
     And I click on "Go" "button" confirming the dialogue
diff --git a/mod/assign/tests/behat/group_submission.feature b/mod/assign/tests/behat/group_submission.feature
index 1943454de14..6717db35a40 100644
--- a/mod/assign/tests/behat/group_submission.feature
+++ b/mod/assign/tests/behat/group_submission.feature
@@ -35,7 +35,7 @@ Feature: Group assignment submissions
       | Students submit in groups | Yes |
       | Group mode | No groups |
     And I follow "Test assignment name"
-    When I follow "View/grade all submissions"
+    When I follow "View all submissions"
     Then "//tr[contains(., 'Student 0')][contains(., 'Default group')]" "xpath_element" should exist
     And "//tr[contains(., 'Student 1')][contains(., 'Default group')]" "xpath_element" should exist
     And "//tr[contains(., 'Student 2')][contains(., 'Default group')]" "xpath_element" should exist
@@ -54,7 +54,7 @@ Feature: Group assignment submissions
     And I add "Student 1 (student1@example.com)" user to "Group 1" group members
     And I follow "Course 1"
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
+    And I follow "View all submissions"
     And "//tr[contains(., 'Student 0')][contains(., 'Group 1')]" "xpath_element" should exist
     And "//tr[contains(., 'Student 1')][contains(., 'Group 1')]" "xpath_element" should exist
     And I should not see "Student 2"
@@ -113,7 +113,7 @@ Feature: Group assignment submissions
     And I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    When I follow "View/grade all submissions"
+    When I follow "View all submissions"
     Then "Student 1" row "Status" column of "generaltable" table should contain "Submitted for grading"
     And "Student 2" row "Status" column of "generaltable" table should contain "Submitted for grading"
     And "Student 3" row "Status" column of "generaltable" table should not contain "Submitted for grading"
@@ -130,7 +130,7 @@ Feature: Group assignment submissions
     And I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
+    And I follow "View all submissions"
     And "Student 1" row "Status" column of "generaltable" table should contain "Submitted for grading"
     And "Student 2" row "Status" column of "generaltable" table should contain "Submitted for grading"
     And "Student 3" row "Status" column of "generaltable" table should contain "Submitted for grading"
diff --git a/mod/assign/tests/behat/outcome_grading.feature b/mod/assign/tests/behat/outcome_grading.feature
index c5b1ed3ce2e..8dc65dbc037 100644
--- a/mod/assign/tests/behat/outcome_grading.feature
+++ b/mod/assign/tests/behat/outcome_grading.feature
@@ -62,12 +62,15 @@ Feature: Outcome grading
     When I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
-    And I click on "img[alt='Grade Student 0']" "css_element"
+    And I follow "View all submissions"
+    And I click on "Grade" "link" in the "Student 0" "table_row"
     And I set the following fields to these values:
       | Outcome Test: | Excellent |
     And I press "Save changes"
-    And I press "Continue"
+    And I press "Ok"
+    And I click on "Edit settings" "link"
+    And I follow "Test assignment name"
+    And I follow "View all submissions"
     Then I should see "Outcome Test: Excellent" in the "Student 0" "table_row"
     And I should not see "Outcome Test: Excellent" in the "Student 1" "table_row"
 
@@ -109,22 +112,28 @@ Feature: Outcome grading
     When I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
-    And I click on "img[alt='Grade Student 0']" "css_element"
+    And I follow "View all submissions"
+    And I click on "Grade" "link" in the "Student 0" "table_row"
     And I set the following fields to these values:
       | Outcome Test: | Excellent |
       | Apply grades and feedback to entire group | Yes |
     And I press "Save changes"
-    And I press "Continue"
+    And I press "Ok"
+    And I click on "Edit settings" "link"
+    And I follow "Test assignment name"
+    And I follow "View all submissions"
     Then I should see "Outcome Test: Excellent" in the "Student 0" "table_row"
     And I should see "Outcome Test: Excellent" in the "Student 1" "table_row"
     And I should not see "Outcome Test: Excellent" in the "Student 2" "table_row"
-    And I click on "img[alt='Grade Student 1']" "css_element"
+    And I click on "Grade" "link" in the "Student 1" "table_row"
     And I set the following fields to these values:
       | Outcome Test: | Disappointing |
       | Apply grades and feedback to entire group | No |
     And I press "Save changes"
-    And I press "Continue"
+    And I press "Ok"
+    And I click on "Edit settings" "link"
+    And I follow "Test assignment name"
+    And I follow "View all submissions"
     And I should see "Outcome Test: Excellent" in the "Student 0" "table_row"
     And I should see "Outcome Test: Disappointing" in the "Student 1" "table_row"
     And I should not see "Outcome Test: Disappointing" in the "Student 0" "table_row"
diff --git a/mod/assign/tests/behat/prevent_submission_changes.feature b/mod/assign/tests/behat/prevent_submission_changes.feature
index f9b60c73429..d519c6f8772 100644
--- a/mod/assign/tests/behat/prevent_submission_changes.feature
+++ b/mod/assign/tests/behat/prevent_submission_changes.feature
@@ -45,7 +45,7 @@ Feature: Prevent or allow assignment submission changes
     And I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    When I follow "View/grade all submissions"
+    When I follow "View all submissions"
     And I click on "Edit" "link" in the "Student 1" "table_row"
     And I follow "Prevent submission changes"
     Then I should see "Submission changes not allowed"
@@ -59,7 +59,7 @@ Feature: Prevent or allow assignment submission changes
     And I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
+    And I follow "View all submissions"
     And I click on "Edit" "link" in the "Student 1" "table_row"
     And I follow "Allow submission changes"
     And I should not see "Submission changes not allowed"
@@ -98,7 +98,7 @@ Feature: Prevent or allow assignment submission changes
     And I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    When I follow "View/grade all submissions"
+    When I follow "View all submissions"
     And I set the field "selectall" to "1"
     And I click on "Go" "button" confirming the dialogue
     Then I should see "Submission changes not allowed" in the "Student 1" "table_row"
@@ -112,7 +112,7 @@ Feature: Prevent or allow assignment submission changes
     And I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
+    And I follow "View all submissions"
     And I set the field "selectall" to "1"
     And I set the field "id_operation" to "Unlock submissions"
     And I click on "Go" "button" confirming the dialogue
diff --git a/mod/assign/tests/behat/quickgrading.feature b/mod/assign/tests/behat/quickgrading.feature
index ad5be3f1488..30ed100801d 100644
--- a/mod/assign/tests/behat/quickgrading.feature
+++ b/mod/assign/tests/behat/quickgrading.feature
@@ -1,4 +1,4 @@
-@mod @mod_assign
+@mod @mod_assign @javascript
 Feature: In an assignment, teachers grade multiple students on one page
   In order to quickly give students grades and feedback
   As a teacher
@@ -38,14 +38,14 @@ Feature: In an assignment, teachers grade multiple students on one page
     And I am on site homepage
     And I follow "Course 1"
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
-    And I click on "Grade Student 1" "link" in the "Student 1" "table_row"
+    And I follow "View all submissions"
+    And I click on "Grade" "link" in the "Student 1" "table_row"
     And I press "Save changes"
-    And I press "Continue"
+    And I press "Ok"
+    And I click on "Edit settings" "link"
     And I follow "Test assignment name"
     Then I should see "1" in the "Needs grading" "table_row"
 
-  @javascript
   Scenario: Grade multiple students on one page
     Given the following "courses" exist:
       | fullname | shortname | category | groupmode |
@@ -109,14 +109,17 @@ Feature: In an assignment, teachers grade multiple students on one page
     And I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
-    And I click on "Grade Student 1" "link" in the "Student 1" "table_row"
+    And I follow "View all submissions"
+    And I click on "Grade" "link" in the "Student 1" "table_row"
     And I set the following fields to these values:
       | Grade out of 100 | 50.0 |
       | M8d skillZ! | 1337 |
       | Feedback comments | I'm the teacher first feedback |
     And I press "Save changes"
-    And I press "Continue"
+    And I press "Ok"
+    And I click on "Edit settings" "link"
+    And I follow "Test assignment name"
+    And I follow "View all submissions"
     Then I click on "Quick grading" "checkbox"
     And I set the field "User grade" to "60.0"
     And I press "Save all quick grading changes"
@@ -144,7 +147,7 @@ Feature: In an assignment, teachers grade multiple students on one page
     And I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
+    And I follow "View all submissions"
     And I click on "Hide User picture" "link"
     And I click on "Hide Full name" "link"
     And I click on "Hide Email address" "link"
diff --git a/mod/assign/tests/behat/reopen_locked_submission.feature b/mod/assign/tests/behat/reopen_locked_submission.feature
index 8ecec3d7ff6..22970410d85 100644
--- a/mod/assign/tests/behat/reopen_locked_submission.feature
+++ b/mod/assign/tests/behat/reopen_locked_submission.feature
@@ -41,7 +41,7 @@ Feature: Submissions are unlocked when a new attempt is given
     And I am on site homepage
     And I follow "Course 1"
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
+    And I follow "View all submissions"
     And I click on "Edit" "link" in the "Student 1" "table_row"
     And I follow "Prevent submission changes"
     And I should see "Submission changes not allowed"
@@ -76,11 +76,11 @@ Feature: Submissions are unlocked when a new attempt is given
     And I am on site homepage
     And I follow "Course 1"
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
+    And I follow "View all submissions"
     And I click on "Edit" "link" in the "Student 1" "table_row"
     And I follow "Prevent submission changes"
     And I should see "Submission changes not allowed"
     And I click on "Edit" "link" in the "Student 1" "table_row"
     And I follow "Allow another attempt"
     Then I should see "Reopened"
-    And I should not see "Submission changes not allowed"
\ No newline at end of file
+    And I should not see "Submission changes not allowed"
diff --git a/mod/assign/tests/behat/steps_blind_marking.feature b/mod/assign/tests/behat/steps_blind_marking.feature
index cb169e7cb3e..35d7967415b 100644
--- a/mod/assign/tests/behat/steps_blind_marking.feature
+++ b/mod/assign/tests/behat/steps_blind_marking.feature
@@ -44,27 +44,36 @@ Feature: Assignments correctly add feedback to the grade report when workflow an
     And I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
+    And I follow "View all submissions"
     And I should see "Not marked" in the "I'm the student's first submission" "table_row"
-    And I click on "Grade Participant " "link" in the "I'm the student's first submission" "table_row"
+    And I click on "Grade" "link" in the "I'm the student's first submission" "table_row"
     And I set the field "Grade out of 100" to "50"
     And I set the field "Marking workflow state" to "In review"
     And I set the field "Feedback comments" to "Great job! Lol, not really."
     And I press "Save changes"
-    And I press "Continue"
+    And I press "Ok"
+    And I click on "Edit settings" "link"
+    And I follow "Test assignment name"
+    And I follow "View all submissions"
     And I should see "In review" in the "I'm the student's first submission" "table_row"
 
   @javascript
   Scenario: Student identities are revealed after releasing the grades.
-    When I click on "Grade Participant " "link" in the "I'm the student's first submission" "table_row"
+    When I click on "Grade" "link" in the "I'm the student's first submission" "table_row"
     And I set the field "Marking workflow state" to "Ready for release"
     And I press "Save changes"
-    And I press "Continue"
+    And I press "Ok"
+    And I click on "Edit settings" "link"
+    And I follow "Test assignment name"
+    And I follow "View all submissions"
     And I should see "Ready for release" in the "I'm the student's first submission" "table_row"
-    And I click on "Grade Participant " "link" in the "I'm the student's first submission" "table_row"
+    And I click on "Grade" "link" in the "I'm the student's first submission" "table_row"
     And I set the field "Marking workflow state" to "Released"
     And I press "Save changes"
-    And I press "Continue"
+    And I press "Ok"
+    And I click on "Edit settings" "link"
+    And I follow "Test assignment name"
+    And I follow "View all submissions"
     And I should see "Released" in the "I'm the student's first submission" "table_row"
     And I set the field "Grading action" to "Reveal student identities"
     And I press "Continue"
@@ -78,17 +87,23 @@ Feature: Assignments correctly add feedback to the grade report when workflow an
 
   @javascript
   Scenario: Student identities are revealed before releasing the grades.
-    When I click on "Grade Participant " "link" in the "I'm the student's first submission" "table_row"
+    When I click on "Grade" "link" in the "I'm the student's first submission" "table_row"
     And I set the field "Marking workflow state" to "Ready for release"
     And I press "Save changes"
-    And I press "Continue"
+    And I press "Ok"
+    And I click on "Edit settings" "link"
+    And I follow "Test assignment name"
+    And I follow "View all submissions"
     And I should see "Ready for release" in the "I'm the student's first submission" "table_row"
     And I set the field "Grading action" to "Reveal student identities"
     And I press "Continue"
-    And I click on "Grade Student 1" "link" in the "Student 1" "table_row"
+    And I click on "Grade" "link" in the "Student 1" "table_row"
     And I set the field "Marking workflow state" to "Released"
     And I press "Save changes"
-    And I press "Continue"
+    And I press "Ok"
+    And I click on "Edit settings" "link"
+    And I follow "Test assignment name"
+    And I follow "View all submissions"
     And I should see "Released" in the "Student 1" "table_row"
     And I log out
     And I log in as "student1"
diff --git a/mod/assign/tests/behat/submission_comments.feature b/mod/assign/tests/behat/submission_comments.feature
index 4617f45e35d..9e264607185 100644
--- a/mod/assign/tests/behat/submission_comments.feature
+++ b/mod/assign/tests/behat/submission_comments.feature
@@ -1,4 +1,4 @@
-@mod @mod_assign
+@mod @mod_assign @javascript
 Feature: In an assignment, students can comment in their submissions
   In order to refine assignment submissions
   As a student
@@ -17,7 +17,6 @@ Feature: In an assignment, students can comment in their submissions
       | teacher1 | C1 | editingteacher |
       | student1 | C1 | student |
 
-  @javascript
   Scenario: Student comments an assignment submission
     Given the following "activities" exist:
       | activity | course | idnumber | name                 | intro                       | assignsubmission_onlinetext_enabled |
@@ -46,7 +45,6 @@ Feature: In an assignment, students can comment in their submissions
     And I should see "Second student comment"
     And I should not see "First student comment"
 
-  @javascript
   Scenario: Teacher can comment on an offline assignment
     Given the following "activities" exist:
       | activity | course | idnumber | name                 | intro                       | assignsubmission_onlinetext_enabled | assignmentsubmission_file_enabled | assignfeedback_comments_enabled |
@@ -54,13 +52,16 @@ Feature: In an assignment, students can comment in their submissions
     And I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
-    And I click on "Grade Student 1" "link" in the "Student 1" "table_row"
+    And I follow "View all submissions"
+    And I click on "Grade" "link" in the "Student 1" "table_row"
     When I set the following fields to these values:
       | Grade out of 100 | 50 |
       | Feedback comments | I'm the teacher feedback |
     And I press "Save changes"
-    And I press "Continue"
+    And I press "Ok"
+    And I click on "Edit settings" "link"
+    And I follow "Test assignment name"
+    And I follow "View all submissions"
     Then I should see "50.00" in the "Student 1" "table_row"
     And I should see "I'm the teacher feedback" in the "Student 1" "table_row"
 
@@ -71,15 +72,14 @@ Feature: In an assignment, students can comment in their submissions
     And I log in as "teacher1"
     And I follow "Course 1"
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
-    And I click on "Grade Student 1" "link" in the "Student 1" "table_row"
+    And I follow "View all submissions"
+    And I click on "Grade" "link" in the "Student 1" "table_row"
     And I set the following fields to these values:
       | Grade out of 100 | 0 |
     And I press "Save changes"
-    And I should see "The grade changes were saved"
-    And I press "Continue"
-    When I click on "Grade Student 1" "link" in the "Student 1" "table_row"
+    And I should see "The changes to the grade and feedback were saved"
+    And I press "Ok"
     And I set the following fields to these values:
       | Feedback comments | I'm the teacher feedback |
     And I press "Save changes"
-    Then I should see "The grade changes were saved"
+    Then I should see "The changes to the grade and feedback were saved"
diff --git a/mod/assign/tests/behat/submit_without_group.feature b/mod/assign/tests/behat/submit_without_group.feature
index cf768658aee..0b75efbfd46 100644
--- a/mod/assign/tests/behat/submit_without_group.feature
+++ b/mod/assign/tests/behat/submit_without_group.feature
@@ -90,7 +90,7 @@ Feature: Submit assignment without group
     And I follow "Allow default group"
     And I should see "1" in the "Groups" "table_row"
     And I should not see "The setting 'Require group to make submission\' is enabled and some users are either not a member of any group, or are a member of more than one group, so are unable to make submissions."
-    And I follow "View/grade all submissions"
+    And I follow "View all submissions"
     And I should see "Default group" in the "Student 1" "table_row"
     And I should see "Default group" in the "Student 2" "table_row"
     And I should see "Submitted for grading" in the "Student 1" "table_row"
@@ -100,7 +100,7 @@ Feature: Submit assignment without group
     And I follow "Require group membership"
     And I should see "0" in the "Groups" "table_row"
     And I should see "The setting 'Require group to make submission' is enabled and some users are either not a member of any group, or are a member of more than one group, so are unable to make submissions."
-    And I follow "View/grade all submissions"
+    And I follow "View all submissions"
     And I should see "Not a member of any group, so unable to make submissions." in the "Student 1" "table_row"
     And I should see "Not a member of any group, so unable to make submissions." in the "Student 2" "table_row"
     And I should not see "Submitted for grading" in the "Student 1" "table_row"
@@ -110,7 +110,7 @@ Feature: Submit assignment without group
     And I follow "Require group membership"
     And I should see "1" in the "Groups" "table_row"
     And I should not see "The setting 'Require group to make submission' is enabled and some users are either not a member of any group, or are a member of more than one group, so are unable to make submissions."
-    And I follow "View/grade all submissions"
+    And I follow "View all submissions"
     And I should see "Group 1" in the "Student 1" "table_row"
     And I should see "Group 1" in the "Student 2" "table_row"
     And I should see "Submitted for grading" in the "Student 1" "table_row"
@@ -128,5 +128,5 @@ Feature: Submit assignment without group
     And I follow "Course 3"
     And I follow "Require group membership"
     And I should see "The setting 'Require group to make submission' is enabled and some users are either not a member of any group, or are a member of more than one group, so are unable to make submissions."
-    And I follow "View/grade all submissions"
+    And I follow "View all submissions"
     And I should see "Member of more than one group, so unable to make submissions." in the "Student 3" "table_row"
diff --git a/theme/bootstrapbase/less/moodle/forms.less b/theme/bootstrapbase/less/moodle/forms.less
index 82765a60c2b..abb8008ff7e 100644
--- a/theme/bootstrapbase/less/moodle/forms.less
+++ b/theme/bootstrapbase/less/moodle/forms.less
@@ -481,6 +481,8 @@ fieldset.coursesearchbox label {
     }
 }
 
+
+
 /**
  * Make forms vertical when the screen is less than 1474px AND both side-pre and side-post contain blocks.
  * This is an extra special media rule.

From 07a7d9a5f18eceb5714ce2175f0adc697c0c5a45 Mon Sep 17 00:00:00 2001
From: Damyon Wiese <damyon@moodle.com>
Date: Wed, 30 Mar 2016 13:46:02 +0800
Subject: [PATCH 8/9] MDL-52954 assign: Fix new behat tests

This is the result of new tests added using the old lang strings.
---
 mod/assign/tests/behat/rescale_grades.feature | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/mod/assign/tests/behat/rescale_grades.feature b/mod/assign/tests/behat/rescale_grades.feature
index 1a42574c6fd..b77182309ce 100644
--- a/mod/assign/tests/behat/rescale_grades.feature
+++ b/mod/assign/tests/behat/rescale_grades.feature
@@ -1,4 +1,4 @@
-@mod @mod_assign
+@mod @mod_assign @bug
 Feature: Check that the assignment grade can be rescaled when the max grade is changed
   In order to ensure that the percentages are not affected by changes to the max grade
   As a teacher
@@ -26,7 +26,7 @@ Feature: Check that the assignment grade can be rescaled when the max grade is c
       | Assignment name | Test assignment name |
       | Description | Test assignment description |
     And I follow "Test assignment name"
-    And I follow "View/grade all submissions"
+    And I follow "View all submissions"
     And I click on "Grade Student 1" "link" in the "Student 1" "table_row"
     And I set the field "Grade out of 100" to "40"
     And I press "Save changes"
@@ -39,7 +39,7 @@ Feature: Check that the assignment grade can be rescaled when the max grade is c
     And I set the field "Maximum grade" to "80"
     And I set the field "Rescale existing grades" to "No"
     When I press "Save and display"
-    And I follow "View/grade all submissions"
+    And I follow "View all submissions"
     Then "Student 1" row "Grade" column of "generaltable" table should contain "40.00"
 
   Scenario: Update the max grade for an assignment rescaling existing grades
@@ -48,7 +48,7 @@ Feature: Check that the assignment grade can be rescaled when the max grade is c
     And I set the field "Maximum grade" to "50"
     And I set the field "Rescale existing grades" to "Yes"
     When I press "Save and display"
-    And I follow "View/grade all submissions"
+    And I follow "View all submissions"
     Then "Student 1" row "Grade" column of "generaltable" table should contain "20.00"
 
   Scenario: A rescale existing grades is not needed when keeping max grade unchanged

From 6853cd5ed4e25389b2356b0a4f00adbbe33fc3bb Mon Sep 17 00:00:00 2001
From: Damyon Wiese <damyon@moodle.com>
Date: Wed, 30 Mar 2016 14:07:28 +0800
Subject: [PATCH 9/9] MDL-52954 assign: Fix the reasonable cibot warnings.

---
 lib/filestorage/file_storage.php              |  4 ++--
 lib/formslib.php                              |  3 ++-
 lib/tests/unoconv_test.php                    |  4 ++--
 mod/assign/classes/output/grading_app.php     |  6 +++---
 mod/assign/externallib.php                    | 20 +++++++++++-------
 .../editpdf/classes/event/observer.php        |  4 +++-
 .../feedback/editpdf/classes/renderer.php     |  6 ++++--
 .../classes/task/convert_submissions.php      |  4 +++-
 mod/assign/feedback/editpdf/db/tasks.php      |  8 ++-----
 mod/assign/feedback/editpdf/db/upgrade.php    |  2 --
 mod/assign/gradingtable.php                   |  2 +-
 mod/assign/locallib.php                       | 21 +++++++++----------
 mod/assign/renderable.php                     |  4 ++--
 mod/assign/renderer.php                       |  8 +++----
 mod/assign/styles.css                         |  2 +-
 15 files changed, 51 insertions(+), 47 deletions(-)

diff --git a/lib/filestorage/file_storage.php b/lib/filestorage/file_storage.php
index d62be782219..6ccb84e93d7 100644
--- a/lib/filestorage/file_storage.php
+++ b/lib/filestorage/file_storage.php
@@ -2408,8 +2408,8 @@ class file_storage {
         $rs->close();
         mtrace('done.');
 
-        // remove orphaned converted files (that is files in the core documentconversion filearea without
-        // the existing original file)
+        // Remove orphaned converted files (that is files in the core documentconversion filearea without
+        // the existing original file).
         mtrace('Deleting orphaned document conversion files... ', '');
         cron_trace_time_and_memory();
         $sql = "SELECT p.*
diff --git a/lib/formslib.php b/lib/formslib.php
index 2c16fd225e9..f011b23cb85 100644
--- a/lib/formslib.php
+++ b/lib/formslib.php
@@ -161,7 +161,8 @@ abstract class moodleform {
      * @param bool $editable
      * @param array $ajaxformdata Forms submitted via ajax, must pass their data here, instead of relying on _GET and _POST.
      */
-    public function __construct($action=null, $customdata=null, $method='post', $target='', $attributes=null, $editable=true, $ajaxformdata=null) {
+    public function __construct($action=null, $customdata=null, $method='post', $target='', $attributes=null, $editable=true,
+                                $ajaxformdata=null) {
         global $CFG, $FULLME;
         // no standard mform in moodle should allow autocomplete with the exception of user signup
         if (empty($attributes)) {
diff --git a/lib/tests/unoconv_test.php b/lib/tests/unoconv_test.php
index 6c266f7bdff..3038abb3a5b 100644
--- a/lib/tests/unoconv_test.php
+++ b/lib/tests/unoconv_test.php
@@ -18,7 +18,6 @@
  * Test unoconv functionality.
  *
  * @package    core
- * @category   phpunit
  * @copyright  2016 Damyon Wiese
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
@@ -30,13 +29,14 @@ defined('MOODLE_INTERNAL') || die();
  * A set of tests for some of the unoconv functionality within Moodle.
  *
  * @package    core
- * @category   phpunit
  * @copyright  2016 Damyon Wiese
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class core_unoconv_testcase extends advanced_testcase {
 
+    /** @var $testfile1 */
     private $testfile1 = null;
+    /** @var $testfile2 */
     private $testfile2 = null;
 
     public function setUp() {
diff --git a/mod/assign/classes/output/grading_app.php b/mod/assign/classes/output/grading_app.php
index d8a47bbff4f..df53f229bda 100644
--- a/mod/assign/classes/output/grading_app.php
+++ b/mod/assign/classes/output/grading_app.php
@@ -42,17 +42,17 @@ use stdClass;
 class grading_app implements templatable, renderable {
 
     /**
-     * The initial user id.
+     * @var $userid - The initial user id.
      */
     public $userid = 0;
 
     /**
-     * The initial group id.
+     * @var $groupid - The initial group id.
      */
     public $groupid = 0;
 
     /**
-     * The assignment instance.
+     * @var $assignment - The assignment instance.
      */
     public $assignment = null;
 
diff --git a/mod/assign/externallib.php b/mod/assign/externallib.php
index c1d436500a6..be19ca6afc7 100644
--- a/mod/assign/externallib.php
+++ b/mod/assign/externallib.php
@@ -1537,9 +1537,11 @@ class mod_assign_external extends external_api {
         require_once($CFG->dirroot . '/mod/assign/gradeform.php');
 
         $params = self::validate_parameters(self::submit_grading_form_parameters(),
-                                            array('assignmentid' => $assignmentid,
-                                                  'userid' => $userid,
-                                                  'jsonformdata' => $jsonformdata));
+                                            array(
+                                                'assignmentid' => $assignmentid,
+                                                'userid' => $userid,
+                                                'jsonformdata' => $jsonformdata
+                                            ));
 
         $cm = get_coursemodule_from_instance('assign', $params['assignmentid'], 0, false, MUST_EXIST);
         $context = context_module::instance($cm->id);
@@ -1554,10 +1556,12 @@ class mod_assign_external extends external_api {
 
         $warnings = array();
 
-        $options = array('userid'=>$params['userid'],
-                         'attemptnumber'=>$data['attemptnumber'],
-                         'rownum'=>0,
-                         'gradingpanel' => true);
+        $options = array(
+            'userid' => $params['userid'],
+            'attemptnumber' => $data['attemptnumber'],
+            'rownum' => 0,
+            'gradingpanel' => true
+        );
 
         $customdata = (object) $data;
         $formparams = array($assignment, $customdata, $options);
@@ -2582,7 +2586,7 @@ class mod_assign_external extends external_api {
                 'filter' => new external_value(PARAM_RAW, 'search string to filter the results'),
                 'skip' => new external_value(PARAM_INT, 'number of records to skip', VALUE_DEFAULT, 0),
                 'limit' => new external_value(PARAM_INT, 'maximum number of records to return', VALUE_DEFAULT, 0),
-                'onlyids' => new external_value(PARAM_BOOL, 'Do not return all user fields - only the id and flags (requiresgrading etc)', VALUE_DEFAULT, false),
+                'onlyids' => new external_value(PARAM_BOOL, 'Do not return all user fields', VALUE_DEFAULT, false),
             )
         );
     }
diff --git a/mod/assign/feedback/editpdf/classes/event/observer.php b/mod/assign/feedback/editpdf/classes/event/observer.php
index b9fd911ad5c..99de1651000 100644
--- a/mod/assign/feedback/editpdf/classes/event/observer.php
+++ b/mod/assign/feedback/editpdf/classes/event/observer.php
@@ -24,7 +24,9 @@
 namespace assignfeedback_editpdf\event;
 
 /**
- * Simple task to run the grade cron.
+ * An event observer.
+ * @copyright  2016 Damyon Wiese
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class observer {
 
diff --git a/mod/assign/feedback/editpdf/classes/renderer.php b/mod/assign/feedback/editpdf/classes/renderer.php
index b47834f1b61..d91bc85d035 100644
--- a/mod/assign/feedback/editpdf/classes/renderer.php
+++ b/mod/assign/feedback/editpdf/classes/renderer.php
@@ -210,8 +210,10 @@ class assignfeedback_editpdf_renderer extends plugin_renderer_base {
         $canvas = html_writer::div($loading, 'drawingcanvas');
         $canvas = html_writer::div($canvas, 'drawingregion');
         $changesmessage = html_writer::tag('div',
-                                   get_string('draftchangessaved', 'assignfeedback_editpdf'),
-                                   array('class'=>'assignfeedback_editpdf_unsavedchanges warning label label-info'));
+                                           get_string('draftchangessaved', 'assignfeedback_editpdf'),
+                                           array(
+                                               'class' => 'assignfeedback_editpdf_unsavedchanges warning label label-info'
+                                           ));
 
         $changesmessage = html_writer::div($changesmessage, 'unsaved-changes');
         $canvas .= $changesmessage;
diff --git a/mod/assign/feedback/editpdf/classes/task/convert_submissions.php b/mod/assign/feedback/editpdf/classes/task/convert_submissions.php
index 9a4e1a93b7e..2c97a944154 100644
--- a/mod/assign/feedback/editpdf/classes/task/convert_submissions.php
+++ b/mod/assign/feedback/editpdf/classes/task/convert_submissions.php
@@ -29,7 +29,9 @@ use context_module;
 use assign;
 
 /**
- * Simple task to run the grade cron.
+ * Simple task to convert submissions to pdf in the background.
+ * @copyright  2016 Damyon Wiese
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class convert_submissions extends scheduled_task {
 
diff --git a/mod/assign/feedback/editpdf/db/tasks.php b/mod/assign/feedback/editpdf/db/tasks.php
index a610addcb59..e9e2815d338 100644
--- a/mod/assign/feedback/editpdf/db/tasks.php
+++ b/mod/assign/feedback/editpdf/db/tasks.php
@@ -15,13 +15,9 @@
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
 /**
- * Definition of core scheduled tasks.
+ * Definition of editpdf scheduled tasks.
  *
- * The handlers defined on this file are processed and registered into
- * the Moodle DB after any install or upgrade operation. All plugins
- * support this.
- *
- * @package   core
+ * @package   mod_assign
  * @category  task
  * @copyright 2016 Damyon Wiese
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
diff --git a/mod/assign/feedback/editpdf/db/upgrade.php b/mod/assign/feedback/editpdf/db/upgrade.php
index 4cf87b46b0c..599653be54e 100644
--- a/mod/assign/feedback/editpdf/db/upgrade.php
+++ b/mod/assign/feedback/editpdf/db/upgrade.php
@@ -65,7 +65,5 @@ function xmldb_assignfeedback_editpdf_upgrade($oldversion) {
         upgrade_plugin_savepoint(true, 2016021600, 'assignfeedback', 'editpdf');
     }
 
-
-
     return true;
 }
diff --git a/mod/assign/gradingtable.php b/mod/assign/gradingtable.php
index ac89d9a3bad..6dfd26c01ce 100644
--- a/mod/assign/gradingtable.php
+++ b/mod/assign/gradingtable.php
@@ -834,7 +834,7 @@ class assign_grading_table extends table_sql implements renderable {
 
         if (!$this->is_downloading() && $this->hasgrade) {
             $urlparams = array('id' => $this->assignment->get_course_module()->id,
-                               'rownum'=> 0,
+                               'rownum' => 0,
                                'action' => 'grader',
                                'userid' => $row->userid);
             $url = new moodle_url('/mod/assign/view.php', $urlparams);
diff --git a/mod/assign/locallib.php b/mod/assign/locallib.php
index 03e749d542f..f92c631154d 100644
--- a/mod/assign/locallib.php
+++ b/mod/assign/locallib.php
@@ -1426,7 +1426,6 @@ class assign {
      * If this is a group assignment, group info is also returned.
      *
      * @param int $currentgroup
-     * @param bool $idsonly
      * @return array List of user records with extra fields 'submitted', 'notsubmitted', 'requiregrading', 'groupid', 'groupname'
      */
     public function list_participants_with_filter_status_and_group($currentgroup) {
@@ -3250,17 +3249,17 @@ class assign {
         $allsubmissions = $this->get_all_submissions($userid);
 
         if ($attemptnumber != -1 && ($attemptnumber + 1) != count($allsubmissions)) {
-            $params = array('attemptnumber'=>$attemptnumber + 1,
-                            'totalattempts'=>count($allsubmissions));
+            $params = array('attemptnumber' => $attemptnumber + 1,
+                            'totalattempts' => count($allsubmissions));
             $message = get_string('editingpreviousfeedbackwarning', 'assign', $params);
             $o .= $this->get_renderer()->notification($message);
         }
 
-        $pagination = array('rownum'=>$rownum,
-                            'useridlistid'=>0,
-                            'last'=>$last,
-                            'userid'=>$userid,
-                            'attemptnumber'=>$attemptnumber,
+        $pagination = array('rownum' => $rownum,
+                            'useridlistid' => 0,
+                            'last' => $last,
+                            'userid' => $userid,
+                            'attemptnumber' => $attemptnumber,
                             'gradingpanel' => true);
 
         if (!empty($args['formdata'])) {
@@ -3272,7 +3271,7 @@ class assign {
                                            $formparams,
                                            'post',
                                            '',
-                                           array('class'=>'gradeform'));
+                                           array('class' => 'gradeform'));
 
         if (!empty($args['formdata'])) {
             // If we were passed form data - we want the form to check the data
@@ -6735,7 +6734,7 @@ class assign {
 
         if (!$gradingpanel) {
 
-            $buttonarray=array();
+            $buttonarray = array();
             $name = get_string('savechanges', 'assign');
             $buttonarray[] = $mform->createElement('submit', 'savegrade', $name);
             if (!$last) {
@@ -6745,7 +6744,7 @@ class assign {
             $buttonarray[] = $mform->createElement('cancel', 'cancelbutton', get_string('cancel'));
             $mform->addGroup($buttonarray, 'buttonar', '', array(' '), false);
             $mform->closeHeaderBefore('buttonar');
-            $buttonarray=array();
+            $buttonarray = array();
 
             if ($rownum > 0) {
                 $name = get_string('previous', 'assign');
diff --git a/mod/assign/renderable.php b/mod/assign/renderable.php
index 45ad292d5f7..299d074b122 100644
--- a/mod/assign/renderable.php
+++ b/mod/assign/renderable.php
@@ -634,8 +634,8 @@ class assign_attempt_history_chooser implements renderable, templatable {
                 $submissionsummary = get_string('nosubmission', 'assign');
             }
 
-            $attemptsummaryparams = array('attemptnumber'=>$submission->attemptnumber+1,
-                                          'submissionsummary'=>$submissionsummary);
+            $attemptsummaryparams = array('attemptnumber' => $submission->attemptnumber + 1,
+                                          'submissionsummary' => $submissionsummary);
             $submission->attemptsummary = get_string('attemptheading', 'assign', $attemptsummaryparams);
             $submission->statussummary = get_string('submissionstatus_' . $submission->status, 'assign');
 
diff --git a/mod/assign/renderer.php b/mod/assign/renderer.php
index 92e338de3ca..9bfedc432f9 100644
--- a/mod/assign/renderer.php
+++ b/mod/assign/renderer.php
@@ -337,10 +337,10 @@ class mod_assign_renderer extends plugin_renderer_base {
         // Link to the grading page.
         $o .= '<center>';
         $o .= $this->output->container_start('submissionlinks btn-group');
-        $urlparams = array('id' => $summary->coursemoduleid, 'action'=>'grading');
+        $urlparams = array('id' => $summary->coursemoduleid, 'action' => 'grading');
         $url = new moodle_url('/mod/assign/view.php', $urlparams);
         $o .= '<a href="' . $url . '" class="btn">' . get_string('viewgrading', 'mod_assign') . '</a>';
-        $urlparams = array('id' => $summary->coursemoduleid, 'action'=>'grader');
+        $urlparams = array('id' => $summary->coursemoduleid, 'action' => 'grader');
         $url = new moodle_url('/mod/assign/view.php', $urlparams);
         $o .= '<a href="' . $url . '" class="btn btn-primary">' . get_string('grade') . '</a>';
         $o .= $this->output->container_end();
@@ -478,7 +478,7 @@ class mod_assign_renderer extends plugin_renderer_base {
                 $members = $status->submissiongroupmemberswhoneedtosubmit;
                 $userslist = array();
                 foreach ($members as $member) {
-                    $urlparams = array('id' => $member->id, 'course'=>$status->courseid);
+                    $urlparams = array('id' => $member->id, 'course' => $status->courseid);
                     $url = new moodle_url('/user/view.php', $urlparams);
                     if ($status->view == assign_submission_status::GRADER_VIEW && $status->blindmarking) {
                         $userslist[] = $member->alias;
@@ -1456,7 +1456,7 @@ class mod_assign_renderer extends plugin_renderer_base {
     /**
      * Defer to template..
      *
-     * @param grading_app - All the data to render the grading app.
+     * @param grading_app $app - All the data to render the grading app.
      */
     public function render_grading_app(grading_app $app) {
         $context = $app->export_for_template($this);
diff --git a/mod/assign/styles.css b/mod/assign/styles.css
index 73b08639a69..07db1786eb5 100644
--- a/mod/assign/styles.css
+++ b/mod/assign/styles.css
@@ -955,7 +955,7 @@
 }
 .path-mod-assign [data-region="grade-panel"] .mform .fitem .fcheckbox > span,
 .path-mod-assign [data-region="grade-panel"] .mform .fitem .fradio > span,
-.path-mod-assign [data-region="grade-panel"] .mform .fitem .fgroup > span,
+.path-mod-assign [data-region="grade-panel"] .mform .fitem .fgroup > span {
     margin-top: 4px;
 }
 .path-mod-assign [data-region="grade-panel"] .mform .femptylabel .fitemtitle {