From 83ea0cc17e54500ea0feeaf9f85f6126f03bed5e Mon Sep 17 00:00:00 2001
From: Adam Olley <adam.olley@netspot.com.au>
Date: Wed, 27 Jun 2012 16:48:46 +0800
Subject: [PATCH] MDL-19430 My Moodle: Merged Netspot My Course Overview Block
 for Moodle 2

---
 blocks/course_overview/README                 |  33 +++
 .../course_overview/block_course_overview.php | 112 ++++----
 blocks/course_overview/db/install.php         |  28 ++
 blocks/course_overview/db/upgrade.php         |  30 +++
 .../lang/en/block_course_overview.php         |  26 ++
 blocks/course_overview/locallib.php           | 167 ++++++++++++
 blocks/course_overview/module.js              | 226 +++++++++++++++++
 blocks/course_overview/move.php               |  58 +++++
 blocks/course_overview/pix/collapse_all.png   | Bin 0 -> 3077 bytes
 .../pix/colltopics-arrow-current.png          | Bin 0 -> 3168 bytes
 .../pix/colltopics-arrow-down-current.png     | Bin 0 -> 3157 bytes
 .../pix/colltopics-arrow-down.png             | Bin 0 -> 3280 bytes
 .../pix/colltopics-arrow-right.png            | Bin 0 -> 3300 bytes
 blocks/course_overview/pix/expand_all.png     | Bin 0 -> 3066 bytes
 blocks/course_overview/renderer.php           | 240 ++++++++++++++++++
 blocks/course_overview/save.php               |  31 +++
 blocks/course_overview/settings.php           |  16 ++
 blocks/course_overview/styles.css             |  83 ++++++
 blocks/course_overview/version.php            |   4 +-
 19 files changed, 984 insertions(+), 70 deletions(-)
 create mode 100644 blocks/course_overview/README
 create mode 100644 blocks/course_overview/db/install.php
 create mode 100644 blocks/course_overview/db/upgrade.php
 create mode 100644 blocks/course_overview/locallib.php
 create mode 100644 blocks/course_overview/module.js
 create mode 100644 blocks/course_overview/move.php
 create mode 100644 blocks/course_overview/pix/collapse_all.png
 create mode 100644 blocks/course_overview/pix/colltopics-arrow-current.png
 create mode 100644 blocks/course_overview/pix/colltopics-arrow-down-current.png
 create mode 100644 blocks/course_overview/pix/colltopics-arrow-down.png
 create mode 100644 blocks/course_overview/pix/colltopics-arrow-right.png
 create mode 100644 blocks/course_overview/pix/expand_all.png
 create mode 100644 blocks/course_overview/renderer.php
 create mode 100644 blocks/course_overview/save.php
 create mode 100644 blocks/course_overview/settings.php
 create mode 100644 blocks/course_overview/styles.css

diff --git a/blocks/course_overview/README b/blocks/course_overview/README
new file mode 100644
index 00000000000..2aa3aa5e2ed
--- /dev/null
+++ b/blocks/course_overview/README
@@ -0,0 +1,33 @@
+My Course Overview Block for Moodle 2
+
+== Main feautres ==
+
+Provides a user configurable list of the courses a user is enrolled in on their My Moodle page.
+
+The user can set the number of courses to have visible.
+
+Courses can be reordered in editing mode via drag and drop (with appropriate fallback when ajax disabled for the user).
+
+Each course can be expanded to show a list of activity icons alerting the user to updated modules or modules requiring attention.
+
+Optionally can display the shortnames of child courses under the heading of the course (site-wide option).
+
+Optionally can display a welcome area above the courses that welcomes the user and alerts them of any pending messages.
+
+== Installing and configuring ==
+
+Place the code for the block under /blocks/my_course_overview and install the block via the Moodle upgrade process.
+
+== Credits ==
+
+Coding: NetSpot (http://www.netspot.com.au)
+
+Jointly Funded and Designed by:
+ - Flinders University (http://www.flinders.edu.au)
+ - University of Canberra (http://www.canberra.edu.au)
+
+== See also ==
+
+[https://github.com/netspotau/moodle-block_my_course_overview Github page]
+
+[[Category: Contributed code]]
diff --git a/blocks/course_overview/block_course_overview.php b/blocks/course_overview/block_course_overview.php
index df79e3bf2d4..78f45ca3575 100644
--- a/blocks/course_overview/block_course_overview.php
+++ b/blocks/course_overview/block_course_overview.php
@@ -1,5 +1,4 @@
 <?php
-
 // This file is part of Moodle - http://moodle.org/
 //
 // Moodle is free software: you can redistribute it and/or modify
@@ -18,21 +17,19 @@
 /**
  * Course overview block
  *
- * Currently, just a copy-and-paste from the old My Moodle.
- *
- * @package   blocks
- * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @package    block
+ * @subpackage course_overview
+ * @copyright  1999 onwards Martin Dougiamas (http://dougiamas.com)
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
-
-require_once($CFG->dirroot.'/lib/weblib.php');
-require_once($CFG->dirroot . '/lib/formslib.php');
+require_once($CFG->dirroot.'/blocks/course_overview/locallib.php');
 
 class block_course_overview extends block_base {
     /**
      * block initializations
      */
     public function init() {
-        $this->title   = get_string('pluginname', 'block_course_overview');
+        $this->title   = get_string('displaytitle', 'block_course_overview');
     }
 
     /**
@@ -41,82 +38,53 @@ class block_course_overview extends block_base {
      * @return object
      */
     public function get_content() {
-        global $USER, $CFG;
+        global $USER, $CFG, $DB;
+        require_once($CFG->dirroot.'/user/profile/lib.php');
+
         if($this->content !== NULL) {
             return $this->content;
         }
 
+        $config = get_config('block_course_overview');
+
         $this->content = new stdClass();
         $this->content->text = '';
         $this->content->footer = '';
 
         $content = array();
 
-        // limits the number of courses showing up
-        $courses_limit = 21;
-        // FIXME: this should be a block setting, rather than a global setting
-        if (isset($CFG->mycoursesperpage)) {
-            $courses_limit = $CFG->mycoursesperpage;
+        $moving = optional_param('course_moveid', 0, PARAM_INT);
+        $updatemynumber = optional_param('mynumber', null, PARAM_INT);
+        if (!is_null($updatemynumber)) {
+            block_course_overview_update_mynumber($updatemynumber);
         }
 
-        $morecourses = false;
-        if ($courses_limit > 0) {
-            $courses_limit = $courses_limit + 1;
+        profile_load_custom_fields($USER);
+        list($courses_sorted, $courses_total) = block_course_overview_get_sorted_courses();
+        $overviews = block_course_overview_get_overviews($courses_sorted);
+
+        $renderer = $this->page->get_renderer('block_course_overview');
+        if (!isset($config->showwelcomearea) || $config->showwelcomearea) {
+            $this->content->text = $renderer->welcome_area();
         }
 
-        $courses = enrol_get_my_courses('id, shortname, modinfo', 'visible DESC,sortorder ASC', $courses_limit);
-        $site = get_site();
-        $course = $site; //just in case we need the old global $course hack
-
-        if (is_enabled_auth('mnet')) {
-            $remote_courses = get_my_remotecourses();
-        }
-        if (empty($remote_courses)) {
-            $remote_courses = array();
+        //number of sites to display
+        if ($this->page->user_is_editing()) {
+            $count = count(enrol_get_my_courses('id'));
+            $this->content->text .= $renderer->editing_bar_head($count);
         }
 
-        if (($courses_limit > 0) && (count($courses)+count($remote_courses) >= $courses_limit)) {
-            // get rid of any remote courses that are above the limit
-            $remote_courses = array_slice($remote_courses, 0, $courses_limit - count($courses), true);
-            if (count($courses) >= $courses_limit) {
-                //remove the 'marker' course that we retrieve just to see if we have more than $courses_limit
-                array_pop($courses);
-            }
-            $morecourses = true;
-        }
-
-
-        if (array_key_exists($site->id,$courses)) {
-            unset($courses[$site->id]);
-        }
-
-        foreach ($courses as $c) {
-            if (isset($USER->lastcourseaccess[$c->id])) {
-                $courses[$c->id]->lastaccess = $USER->lastcourseaccess[$c->id];
-            } else {
-                $courses[$c->id]->lastaccess = 0;
-            }
-        }
-
-        if (empty($courses) && empty($remote_courses)) {
-            $content[] = get_string('nocourses','my');
+        if (empty($courses_sorted)) {
+            $this->content->text .= get_string('nocourses','my');
         } else {
-            ob_start();
-
-            require_once $CFG->dirroot."/course/lib.php";
-            print_overview($courses, $remote_courses);
-
-            $content[] = ob_get_contents();
-            ob_end_clean();
+            //for each course, build category cache
+            $this->content->text .= $renderer->course_overview($courses_sorted, $overviews, $moving);
+            $this->content->text .= $renderer->hidden_courses($courses_total - count($courses_sorted));
+            if ($this->page->user_is_editing() && ajaxenabled() && !$moving) {
+                $this->page->requires->js_init_call('M.block_course_overview.add_handles');
+            }
         }
 
-        // if more than 20 courses
-        if ($morecourses) {
-            $content[] = '<br />...';
-        }
-
-        $this->content->text = implode($content);
-
         return $this->content;
     }
 
@@ -126,7 +94,7 @@ class block_course_overview extends block_base {
      * @return boolean
      */
     public function has_config() {
-        return false;
+        return true;
     }
 
     /**
@@ -135,7 +103,15 @@ class block_course_overview extends block_base {
      * @return array
      */
     public function applicable_formats() {
-        return array('my-index'=>true);
+        return array('my-index' => true);
+    }
+
+    public function instance_can_be_hidden() {
+        return false;
+    }
+
+    public function hide_header() {
+        return true;
     }
 }
 ?>
diff --git a/blocks/course_overview/db/install.php b/blocks/course_overview/db/install.php
new file mode 100644
index 00000000000..67d6914cf8f
--- /dev/null
+++ b/blocks/course_overview/db/install.php
@@ -0,0 +1,28 @@
+<?php
+
+function xmldb_block_course_overview_install() {
+    global $DB;
+
+    //setup user info fields
+    if (!$DB->get_record('user_info_field', array('shortname' => 'mynumber'))) {
+        $field = new stdClass();
+        $field->shortname = 'mynumber';
+        $field->name = 'Number of courses on My Moodle';
+        $field->datatype = 'text';
+        $field->visible = 1;
+        $field->categoryid = 1;
+
+        $DB->insert_record('user_info_field', $field);
+    }
+
+    if (!$DB->get_record('user_info_field', array('shortname' => 'myorder'))) {
+        $field = new stdClass();
+        $field->shortname = 'myorder';
+        $field->name = 'Order of courses on My Moodle';
+        $field->datatype = 'text';
+        $field->visible = 0;
+        $field->categoryid = 1;
+
+        $DB->insert_record('user_info_field', $field);
+    }
+}
\ No newline at end of file
diff --git a/blocks/course_overview/db/upgrade.php b/blocks/course_overview/db/upgrade.php
new file mode 100644
index 00000000000..f59f7a52468
--- /dev/null
+++ b/blocks/course_overview/db/upgrade.php
@@ -0,0 +1,30 @@
+<?php
+function xmldb_block_course_overview_upgrade($oldversion) {
+    global $DB;
+    if ($oldversion < 2012062800) {
+        //setup user info fields
+        if (!$DB->get_record('user_info_field', array('shortname' => 'mynumber'))) {
+            $field = new stdClass();
+            $field->shortname = 'mynumber';
+            $field->name = 'Number of courses on My Moodle';
+            $field->datatype = 'text';
+            $field->visible = 1;
+            $field->categoryid = 1;
+
+            $DB->insert_record('user_info_field', $field);
+        }
+
+        if (!$DB->get_record('user_info_field', array('shortname' => 'myorder'))) {
+            $field = new stdClass();
+            $field->shortname = 'myorder';
+            $field->name = 'Order of courses on My Moodle';
+            $field->datatype = 'text';
+            $field->visible = 0;
+            $field->categoryid = 1;
+
+            $DB->insert_record('user_info_field', $field);
+        }
+        upgrade_block_savepoint(true, 2012062800, 'course_overview');
+    }
+    return true;
+}
diff --git a/blocks/course_overview/lang/en/block_course_overview.php b/blocks/course_overview/lang/en/block_course_overview.php
index c103d8e2543..f7b2063b9aa 100644
--- a/blocks/course_overview/lang/en/block_course_overview.php
+++ b/blocks/course_overview/lang/en/block_course_overview.php
@@ -1,2 +1,28 @@
 <?php
 $string['pluginname'] = 'Course overview';
+$string['activity_assignment'] = 'You have assignments that need attention';
+$string['activity_forum'] = 'There are new forum posts';
+$string['activity_quiz'] = 'You have quizzes that are due';
+$string['activityoverview'] = 'You have {$a}s that need attention';
+$string['alwaysshowall'] = 'Always Show All';
+$string['collapseall'] = 'Collapse All Course Lists';
+$string['configotherexpanded'] = 'If enabled, Other Courses will be expanded by default unless overriden by user preferences.';
+$string['configpreservestates'] = 'If enabled, the collapsed/expanded states set by the user are stored and used on each load.';
+$string['displaytitle'] = 'learnonline: My Home';
+$string['expandall'] = 'Expand All Course Lists';
+$string['hiddencoursecount'] = 'You have {$a} hidden course';
+$string['hiddencoursecountplural'] = 'You have {$a} hidden courses';
+$string['movecoursehere'] = 'Move course here';
+$string['numtodisplay'] = 'Number of courses to display: ';
+$string['otherexpanded'] = 'Other Courses Expanded';
+$string['preservestates'] = 'Preserve Expanded States';
+$string['message'] = 'message';
+$string['messages'] = 'messages';
+$string['showchildren'] = 'Show Children';
+$string['showchildren_desc'] = 'Should child courses be listed underneath the main course title?';
+$string['showwelcomearea'] = 'Show welcome area';
+$string['showwelcomearea_desc'] = 'Show the welcome area above the course list?';
+$string['view_edit_profile'] = '(View and edit your profile.)';
+$string['welcome'] = 'Welcome {$a}';
+$string['you_have_messages'] = 'You have {$a} unread ';
+$string['you_have_no_messages'] = 'You have no unread ';
diff --git a/blocks/course_overview/locallib.php b/blocks/course_overview/locallib.php
new file mode 100644
index 00000000000..fd7fda67c1f
--- /dev/null
+++ b/blocks/course_overview/locallib.php
@@ -0,0 +1,167 @@
+<?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/>.
+
+function block_course_overview_get_overviews($courses) {
+    global $CFG, $USER, $DB, $OUTPUT;
+    $htmlarray = array();
+    if ($modules = $DB->get_records('modules')) {
+        foreach ($modules as $mod) {
+            if (file_exists(dirname(__FILE__).'/../../mod/'.$mod->name.'/lib.php')) {
+                include_once(dirname(__FILE__).'/../../mod/'.$mod->name.'/lib.php');
+                $fname = $mod->name.'_print_overview';
+                if (function_exists($fname)) {
+                    $fname($courses,$htmlarray);
+                }
+            }
+        }
+    }
+    return $htmlarray;
+}
+
+function block_course_overview_update_mynumber($number) {
+    global $DB, $USER;
+    if ($field = $DB->get_record('user_info_field', array('shortname' => 'mynumber'))) {
+        if ($data = $DB->get_record('user_info_data', array('fieldid' => $field->id, 'userid' => $USER->id))) {
+            $data->data = $number;
+            $DB->update_record('user_info_data', $data);
+        } else {
+            $data = new stdClass();
+            $data->fieldid = $field->id;
+            $data->userid = $USER->id;
+            $data->data = $number;
+            $DB->insert_record('user_info_data', $data);
+        }
+    }
+}
+
+function block_course_overview_update_myorder($sortorder) {
+    global $DB, $USER;
+    if ($field = $DB->get_record('user_info_field', array('shortname' => 'myorder'))) {
+        if ($data = $DB->get_record('user_info_data', array('fieldid' => $field->id, 'userid' => $USER->id))) {
+
+            $oldlist = explode(',', $data->data);
+            $newlist = explode(',', $sortorder);
+            foreach ($oldlist as $oldentry) {
+                if (!in_array($oldentry, $newlist)) {
+                    $newlist[] = $oldentry;
+                }
+            }
+            $sortorder = implode(',', $newlist);
+
+            $data->data = $sortorder;
+            $DB->update_record('user_info_data', $data);
+        } else {
+            $data = new stdClass();
+            $data->fieldid = $field->id;
+            $data->userid = $USER->id;
+            $data->data = $sortorder;
+            $DB->insert_record('user_info_data', $data);
+        }
+    }
+}
+
+function block_course_overview_get_child_shortnames($courseid) {
+    global $COURSE, $DB, $OUTPUT;
+
+    $sql = "SELECT c.shortname
+            FROM {enrol} AS e
+            JOIN {course} AS c ON (c.id = e.customint1)
+            WHERE e.courseid = :courseid AND e.enrol = :method ORDER BY e.sortorder";
+    $params = array('method' => 'meta', 'courseid' => $courseid);
+    if ($results = $DB->get_records_sql($sql, $params)) {
+        $shortnames = array();
+        foreach ($results as $res) {
+            $shortnames[] = $res->shortname;
+        }
+        $total = count($shortnames);
+        $suffix = '';
+        if ($total > 10) {
+            $shortnames = array_slice($shortnames, 0, 10);
+            $diff = $total - count($shortnames);
+            $plural = $diff > 1 ? 's' : '';
+            $suffix = " (and $diff other$plural)";
+        }
+        $shortnames = 'includes '.implode('; ', $shortnames).$suffix;
+    }
+
+    return isset($shortnames) ? $shortnames : false;
+}
+
+function block_course_overview_get_sorted_courses() {
+    global $USER;
+
+    $limit = 71; //TODO: Make this a block setting
+    if (isset($USER->profile['mynumber']) && intval($USER->profile['mynumber']) > 0) {
+        $limit = intval($USER->profile['mynumber']);
+    } else {
+        $USER->profile['mynumber'] = 0;
+    }
+
+    $courses = enrol_get_my_courses('id, shortname, fullname, modinfo');
+    $site = get_site();
+
+    if (array_key_exists($site->id,$courses)) {
+        unset($courses[$site->id]);
+    }
+
+    foreach ($courses as $c) {
+        if (isset($USER->lastcourseaccess[$c->id])) {
+            $courses[$c->id]->lastaccess = $USER->lastcourseaccess[$c->id];
+        } else {
+            $courses[$c->id]->lastaccess = 0;
+        }
+    }
+
+    $order = array();
+    if (isset($USER->profile['myorder'])) {
+        $order = explode(',', $USER->profile['myorder']);
+    }
+
+    $courses_sorted = array();
+
+    //unsorted courses top of the list
+    foreach ($courses as $c) {
+        if (count($courses_sorted) >= $limit) {
+            break;
+        }
+        if (!in_array($c->id, $order)) {
+            $courses_sorted[$c->id] = $c;
+        }
+    }
+
+    //get courses in sort order into list
+    foreach ($order as $o) {
+        if (count($courses_sorted) >= $limit) {
+            break;
+        }
+        if (isset($courses[intval($o)])) {
+            $courses_sorted[$o] = $courses[$o];
+        }
+    }
+
+    //append the remaining courses onto the end of the list
+    foreach ($courses as $c) {
+        if (count($courses_sorted) >= $limit) {
+            break;
+        }
+        if (!isset($courses_sorted[$c->id])) {
+            $courses_sorted[$c->id] = $c;
+        }
+    }
+
+    return array($courses_sorted, count($courses));
+}
diff --git a/blocks/course_overview/module.js b/blocks/course_overview/module.js
new file mode 100644
index 00000000000..6a6536d56e9
--- /dev/null
+++ b/blocks/course_overview/module.js
@@ -0,0 +1,226 @@
+M.block_course_overview = {}
+
+M.block_course_overview.add_handles = function(Y) {
+    M.block_course_overview.Y = Y;
+    YUI().use('dd-constrain', 'dd-proxy', 'dd-drop', 'dd-plugin', function(Y) {
+        //Static Vars
+        var goingUp = false, lastY = 0;
+
+        var list = Y.Node.all('#course_list .coursebox');
+        list.each(function(v, k) {
+            var dd = new Y.DD.Drag({
+                node: v,
+                target: {
+                    padding: '0 0 0 20'
+                }
+            }).plug(Y.Plugin.DDProxy, {
+                moveOnEnd: false
+            }).plug(Y.Plugin.DDConstrained, {
+                constrain2node: '#course_list'
+            });
+            dd.addHandle('.course_title .move');
+        });
+
+        var drops = Y.Node.all('#coursebox');
+        drops.each(function(v, k) {
+            var tar = new Y.DD.Drop({
+                node: v
+            });
+        });
+
+        Y.DD.DDM.on('drag:start', function(e) {
+            //Get our drag object
+            var drag = e.target;
+            //Set some styles here
+            drag.get('node').setStyle('opacity', '.25');
+            drag.get('dragNode').addClass('block_course_overview');
+            drag.get('dragNode').set('innerHTML', drag.get('node').get('innerHTML'));
+            drag.get('dragNode').setStyles({
+                opacity: '.5',
+                borderColor: drag.get('node').getStyle('borderColor'),
+                backgroundColor: drag.get('node').getStyle('backgroundColor')
+            });
+        });
+
+        Y.DD.DDM.on('drag:end', function(e) {
+            var drag = e.target;
+            //Put our styles back
+            drag.get('node').setStyles({
+                visibility: '',
+                opacity: '1'
+            });
+            M.block_course_overview.save(Y);
+        });
+
+        Y.DD.DDM.on('drag:drag', function(e) {
+            //Get the last y point
+            var y = e.target.lastXY[1];
+            //is it greater than the lastY var?
+            if (y < lastY) {
+                //We are going up
+                goingUp = true;
+            } else {
+                //We are going down.
+                goingUp = false;
+            }
+            //Cache for next check
+            lastY = y;
+        });
+
+        Y.DD.DDM.on('drop:over', function(e) {
+            //Get a reference to our drag and drop nodes
+            var drag = e.drag.get('node'),
+                drop = e.drop.get('node');
+
+            //Are we dropping on a li node?
+            if (drop.hasClass('coursebox')) {
+                //Are we not going up?
+                if (!goingUp) {
+                    drop = drop.get('nextSibling');
+                }
+                //Add the node to this list
+                e.drop.get('node').get('parentNode').insertBefore(drag, drop);
+                //Resize this nodes shim, so we can drop on it later.
+                e.drop.sizeShim();
+            }
+        });
+
+        Y.DD.DDM.on('drag:drophit', function(e) {
+            var drop = e.drop.get('node'),
+                drag = e.drag.get('node');
+
+            //if we are not on an li, we must have been dropped on a ul
+            if (!drop.hasClass('coursebox')) {
+                if (!drop.contains(drag)) {
+                    drop.appendChild(drag);
+                }
+            }
+        });
+    });
+}
+
+M.block_course_overview.save = function() {
+    var Y = M.block_course_overview.Y;
+    var sortorder = Y.one('#course_list').get('children').getAttribute('id');
+    for (var i = 0; i < sortorder.length; i++) {
+        sortorder[i] = sortorder[i].substring(7);
+    }
+    var params = {
+        sesskey : M.cfg.sesskey,
+        sortorder : sortorder
+    };
+    Y.io(M.cfg.wwwroot+'/blocks/course_overview/save.php', {
+        method: 'POST',
+        data: build_querystring(params),
+        context: this
+    });
+}
+
+/**
+ * Init a collapsible region, see print_collapsible_region in weblib.php
+ * @param {YUI} Y YUI3 instance with all libraries loaded
+ * @param {String} id the HTML id for the div.
+ * @param {String} userpref the user preference that records the state of this box. false if none.
+ * @param {String} strtooltip
+ */
+M.block_course_overview.collapsible = function(Y, id, userpref, strtooltip) {
+    if (userpref) {
+        M.block_course_overview.userpref = true;
+    }
+    Y.use('anim', function(Y) {
+        new M.block_course_overview.CollapsibleRegion(Y, id, userpref, strtooltip);
+    });
+};
+
+/**
+ * Object to handle a collapsible region : instantiate and forget styled object
+ *
+ * @class
+ * @constructor
+ * @param {YUI} Y YUI3 instance with all libraries loaded
+ * @param {String} id The HTML id for the div.
+ * @param {String} userpref The user preference that records the state of this box. false if none.
+ * @param {String} strtooltip
+ */
+M.block_course_overview.CollapsibleRegion = function(Y, id, userpref, strtooltip) {
+    // Record the pref name
+    this.userpref = userpref;
+
+    // Find the divs in the document.
+    this.div = Y.one('#'+id);
+
+    // Get the caption for the collapsible region
+    var caption = this.div.one('#'+id + '_caption');
+    caption.setAttribute('title', strtooltip);
+
+    // Create a link
+    var a = Y.Node.create('<a href="#"></a>');
+    // Create a local scoped lamba function to move nodes to a new link
+    var movenode = function(node){
+        node.remove();
+        a.append(node);
+    };
+    // Apply the lamba function on each of the captions child nodes
+    caption.get('children').each(movenode, this);
+    caption.prepend(a);
+
+    // Get the height of the div at this point before we shrink it if required
+    var height = this.div.get('offsetHeight');
+    if (this.div.hasClass('collapsed')) {
+        // Shrink the div as it is collapsed by default
+        this.div.setStyle('height', caption.get('offsetHeight')+'px');
+    }
+
+    // Create the animation.
+    var animation = new Y.Anim({
+        node: this.div,
+        duration: 0.3,
+        easing: Y.Easing.easeBoth,
+        to: {height:caption.get('offsetHeight')},
+        from: {height:height}
+    });
+
+    // Handler for the animation finishing.
+    animation.on('end', function() {
+        this.div.toggleClass('collapsed');
+    }, this);
+
+    // Hook up the event handler.
+    caption.on('click', function(e, animation) {
+        e.preventDefault();
+        // Animate to the appropriate size.
+        if (animation.get('running')) {
+            animation.stop();
+        }
+        animation.set('reverse', this.div.hasClass('collapsed'));
+        // Update the user preference.
+        if (this.userpref) {
+            M.util.set_user_preference(this.userpref, !this.div.hasClass('collapsed'));
+        }
+        animation.run();
+    }, this, animation);
+};
+
+M.block_course_overview.userpref = false;
+
+/**
+ * The user preference that stores the state of this box.
+ * @property userpref
+ * @type String
+ */
+M.block_course_overview.CollapsibleRegion.prototype.userpref = null;
+
+/**
+ * The key divs that make up this
+ * @property div
+ * @type Y.Node
+ */
+M.block_course_overview.CollapsibleRegion.prototype.div = null;
+
+/**
+ * The key divs that make up this
+ * @property icon
+ * @type Y.Node
+ */
+M.block_course_overview.CollapsibleRegion.prototype.icon = null;
+
diff --git a/blocks/course_overview/move.php b/blocks/course_overview/move.php
new file mode 100644
index 00000000000..eba21d55979
--- /dev/null
+++ b/blocks/course_overview/move.php
@@ -0,0 +1,58 @@
+<?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/>.
+
+require_once(dirname(__FILE__) . '/../../config.php');
+require_once(dirname(__FILE__) . '/locallib.php');
+require_once($CFG->dirroot.'/user/profile/lib.php');
+
+require_login();
+
+$source = required_param('source', PARAM_INT);
+$target = required_param('target', PARAM_INT);
+
+profile_load_custom_fields($USER);
+
+//get current sortorder
+$sortorder = array();
+if (isset($USER->profile['myorder'])) {
+    $mysortorder = explode(',', $USER->profile['myorder']);
+}
+
+$courses_sorted = block_course_overview_get_sorted_courses();
+$sortorder = array_keys($courses_sorted);
+
+//now resort based on new weight for chosen course
+$neworder = array();
+reset($sortorder);
+foreach ($sortorder as $key => $value) {
+    if ($value == $source) {
+        unset($sortorder[$key]);
+        break;
+    }
+}
+for ($i = 0; $i <= count($sortorder) + 1; $i++) {
+    if ($i == $target) {
+        $neworder[] = $source;
+    }
+    if (isset($sortorder[$i])) {
+        $neworder[] = $sortorder[$i];
+    }
+}
+$neworder = implode(',', $neworder);
+block_course_overview_update_myorder($neworder);
+
+redirect(new moodle_url('/my/index.php'));
diff --git a/blocks/course_overview/pix/collapse_all.png b/blocks/course_overview/pix/collapse_all.png
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diff --git a/blocks/course_overview/renderer.php b/blocks/course_overview/renderer.php
new file mode 100644
index 00000000000..dc510d5a3b7
--- /dev/null
+++ b/blocks/course_overview/renderer.php
@@ -0,0 +1,240 @@
+<?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/>.
+
+defined('MOODLE_INTERNAL') || die;
+
+require_once($CFG->dirroot.'/message/lib.php');
+
+class block_course_overview_renderer extends plugin_renderer_base {
+
+    public function course_overview($courses, $overviews, $moving = 0) {
+        global $OUTPUT;
+        $html = '';
+        $config = get_config('block_course_overview');
+
+        $html .= html_writer::start_tag('div', array('id' => 'course_list'));
+        $weight = 0;
+        $keylist = array_keys($courses);
+        if ($this->page->user_is_editing() && $moving && $keylist[0] != $moving) {
+            $html .= $this->course_move_target($moving, $weight);
+            $weight++;
+        }
+        foreach ($courses as $course) {
+            $cursor = ajaxenabled() && !$moving ? ' cursor' : '';
+            $html .= $OUTPUT->box_start('coursebox', "course-{$course->id}");
+            $html .= html_writer::start_tag('div', array('class' => 'course_title'));
+            if ($this->page->user_is_editing()) {
+                // Move icon.
+                $icon = ajaxenabled() ? 'i/move_2d' : 't/move';
+                $control = array('url' => new moodle_url('/my/index.php', array('course_moveid' => $course->id)),
+                    'icon' => $icon, 'caption' => get_string('move'));
+                if (ajaxenabled()) {
+                    $html .= html_writer::tag('div',
+                        html_writer::empty_tag('img',
+                            array('src' => $this->pix_url($control['icon'])->out(false),
+                                'alt' => $control['caption'], 'class' => 'icon cursor',
+                                'title' => $control['caption'])
+                        ), array('class' => 'move')
+                    );
+                } else {
+                    $html .= html_writer::tag('a',
+                             html_writer::empty_tag('img',  array('src' => $this->pix_url($control['icon'])->out(false), 'alt' => $control['caption'])),
+                                    array('class' => 'icon move','title' => $control['caption'], 'href' => $control['url']));
+                }
+            }
+            $link = html_writer::link(new moodle_url('/course/view.php', array('id' => $course->id)), $course->fullname);
+            $html .= $OUTPUT->heading($link, 2, 'title');
+            $html .= $OUTPUT->box('', 'flush');
+            $html .= html_writer::end_tag('div');
+
+            if (isset($config->showchildren) && $config->showchildren) {
+                //list children here
+                if ($children = block_course_overview_get_child_shortnames($course->id)) {
+                    $html .= html_writer::tag('span', $children, array('class' => 'coursechildren'));
+                }
+            }
+
+            if (isset($overviews[$course->id])) {
+                $html .= $this->activity_display($course->id, $overviews[$course->id]);
+            }
+
+            $html .= $OUTPUT->box('', 'flush');
+            $html .= $OUTPUT->box_end();
+
+            if ($this->page->user_is_editing() && $moving && $course->id != $moving) {
+                //check if next is the course we're moving
+                $okay = true;
+                if (isset($keylist[$weight])) {
+                    if ($courses[$keylist[$weight]]->id == $moving) {
+                        $okay = false;
+                    }
+                }
+                if ($okay) {
+                    $html .= $this->course_move_target($moving, $weight);
+                }
+            }
+            $weight++;
+        }
+        $html .= html_writer::end_tag('div');
+
+        return $html;
+    }
+
+    protected function course_move_target($cid, $weight) {
+        $url = new moodle_url('/blocks/course_overview/move.php', array('source' => $cid, 'target' => $weight));
+        return html_writer::tag('a', html_writer::tag('span', get_string('movecoursehere', 'block_course_overview'),
+                                array('class' => 'accesshide')), array('href' => $url, 'class' => 'coursemovetarget'));
+    }
+
+    protected function activity_display($cid, $overview) {
+        global $OUTPUT;
+        $output = html_writer::start_tag('div', array('class' => 'activity_info'));
+        foreach (array_keys($overview) as $module) {
+            $output .= html_writer::start_tag('div', array('class' => 'activity_overview'));
+            $url = new moodle_url("/mod/$module/index.php", array('id' => $cid));
+            $icontext = html_writer::link($url, $OUTPUT->pix_icon('icon', get_string('modulename', $module), 'mod_'.$module, array('class'=>'icon')).' ');
+            if (get_string_manager()->string_exists("activity_$module", 'block_course_overview')) {
+                $icontext .= get_string("activity_$module", 'block_course_overview');
+            } else {
+                $icontext .= get_string("activityoverview", 'block_course_overview', $module);
+            }
+
+            //add collapsible region with overview text in it
+            $output .= $this->collapsible_region($overview[$module], '', 'region_'.$cid.'_'.$module, $icontext, '', true);
+
+            $output .= html_writer::end_tag('div');
+        }
+        $output .= html_writer::end_tag('div');
+        return $output;
+    }
+
+    public function editing_bar_head($max = 0) {
+        global $OUTPUT, $USER;
+        $output = $OUTPUT->box_start('notice');
+
+        $options = array('0' => get_string('alwaysshowall', 'block_course_overview'));
+        for ($i = 1; $i <= $max; $i++) {
+            $options[$i] = $i;
+        }
+        $url = new moodle_url('/my/index.php');
+        $select = new single_select($url, 'mynumber', $options, $USER->profile['mynumber'], array());
+        $select->set_label(get_string('numtodisplay', 'block_course_overview'));
+        $output .= $OUTPUT->render($select);
+
+        $output .= $OUTPUT->box_end();
+        return $output;
+    }
+
+    public function hidden_courses($total) {
+        global $OUTPUT;
+        if ($total <= 0) {
+            return;
+        }
+        $output = $OUTPUT->box_start('notice');
+        $plural = $total > 1 ? 'plural' : '';
+        $output .= get_string('hiddencoursecount'.$plural, 'block_course_overview', $total);
+        $output .= $OUTPUT->box_end();
+        return $output;
+    }
+
+    protected function collapsible_region($contents, $classes, $id, $caption, $userpref = '', $default = false) {
+            $output  = $this->collapsible_region_start($classes, $id, $caption, $userpref, $default);
+            $output .= $contents;
+            $output .= $this->collapsible_region_end();
+
+            return $output;
+        }
+
+    /**
+     * Print (or return) the start of a collapsible region, that has a caption that can
+     * be clicked to expand or collapse the region. If JavaScript is off, then the region
+     * will always be expanded.
+     *
+     * @param string $classes class names added to the div that is output.
+     * @param string $id id added to the div that is output. Must not be blank.
+     * @param string $caption text displayed at the top. Clicking on this will cause the region to expand or contract.
+     * @param string $userpref the name of the user preference that stores the user's preferred default state.
+     *      (May be blank if you do not wish the state to be persisted.
+     * @param boolean $default Initial collapsed state to use if the user_preference it not set.
+     * @param boolean $return if true, return the HTML as a string, rather than printing it.
+     */
+    protected function collapsible_region_start($classes, $id, $caption, $userpref = '', $default = false) {
+        global $CFG, $PAGE, $OUTPUT;
+
+        // Work out the initial state.
+        if (!empty($userpref) and is_string($userpref)) {
+            user_preference_allow_ajax_update($userpref, PARAM_BOOL);
+            $collapsed = get_user_preferences($userpref, $default);
+        } else {
+            $collapsed = $default;
+            $userpref = false;
+        }
+
+        if ($collapsed) {
+            $classes .= ' collapsed';
+        }
+
+        $output = '';
+        $output .= '<div id="' . $id . '" class="collapsibleregion ' . $classes . '">';
+        $output .= '<div id="' . $id . '_sizer">';
+        $output .= '<div id="' . $id . '_caption" class="collapsibleregioncaption">';
+        $output .= $caption . ' ';
+        $output .= '</div><div id="' . $id . '_inner" class="collapsibleregioninner">';
+        $this->page->requires->js_init_call('M.block_course_overview.collapsible', array($id, $userpref, get_string('clicktohideshow')));
+
+        return $output;
+    }
+
+    /**
+     * Close a region started with print_collapsible_region_start.
+     *
+     * @param boolean $return if true, return the HTML as a string, rather than printing it.
+     */
+    protected function collapsible_region_end() {
+        $output = '</div></div></div>';
+        return $output;
+    }
+
+    public function welcome_area() {
+        global $OUTPUT, $USER;
+        $output = $OUTPUT->box_start('welcome_area');
+
+        $picture = $OUTPUT->user_picture($USER, array('size' => 75, 'class' => 'welcome_userpicture'));
+        $output .= html_writer::tag('div', $picture, array('class' => 'profilepicture'));
+
+        $output .= $OUTPUT->box_start('welcome_message');
+        $output .= $OUTPUT->heading(get_string('welcome', 'block_course_overview', $USER->firstname));
+
+        //messages
+        $count = message_count_unread_messages($USER);
+        $plural = 's';
+        if ($count > 0) {
+            $output .= get_string('you_have_messages', 'block_course_overview', $count);
+        } else {
+            $output .= get_string('you_have_no_messages', 'block_course_overview');
+            if ($count == 1) {
+                $plural = '';
+            }
+        }
+        $output .= html_writer::link(new moodle_url('/message/index.php'), get_string('message'.$plural, 'block_course_overview'));
+        $output .= $OUTPUT->box_end();
+        $output .= $OUTPUT->box('', 'flush');
+        $output .= $OUTPUT->box_end();
+
+        return $output;
+    }
+}
diff --git a/blocks/course_overview/save.php b/blocks/course_overview/save.php
new file mode 100644
index 00000000000..36841ccac3f
--- /dev/null
+++ b/blocks/course_overview/save.php
@@ -0,0 +1,31 @@
+<?php
+
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+define('AJAX_SCRIPT', true);
+
+/** Include config */
+require_once(dirname(__FILE__) . '/../../config.php');
+require_once(dirname(__FILE__) . '/locallib.php');
+
+if (!confirm_sesskey()) {
+    throw new moodle_exception('invalidsesskey', 'error');
+}
+
+$sortorder = required_param('sortorder', PARAM_INT);
+$sortorder = implode(',', $sortorder);
+
+block_course_overview_update_myorder($sortorder);
diff --git a/blocks/course_overview/settings.php b/blocks/course_overview/settings.php
new file mode 100644
index 00000000000..facd4395f1c
--- /dev/null
+++ b/blocks/course_overview/settings.php
@@ -0,0 +1,16 @@
+<?php
+
+defined('MOODLE_INTERNAL') || die;
+
+if ($ADMIN->fulltree) {
+    $configs = array();
+    $configs[] = new admin_setting_configcheckbox('showchildren', get_string('showchildren', 'block_course_overview'),
+                       get_string('showchildren_desc', 'block_course_overview'), '');
+    $configs[] = new admin_setting_configcheckbox('showwelcomearea', get_string('showwelcomearea', 'block_course_overview'),
+                       get_string('showwelcomearea_desc', 'block_course_overview'), 1);
+
+    foreach ($configs as $config) {
+        $config->plugin = 'block_course_overview';
+        $settings->add($config);
+    }
+}
diff --git a/blocks/course_overview/styles.css b/blocks/course_overview/styles.css
new file mode 100644
index 00000000000..269c4b7b1df
--- /dev/null
+++ b/blocks/course_overview/styles.css
@@ -0,0 +1,83 @@
+.pagelayout-mydashboard #region-main .region-content .block_course_overview .header,
+.pagelayout-mydashboard #region-main .region-content .block_course_overview .block_action,
+.pagelayout-mydashboard #region-main .region-content .block_course_overview .commands {
+    display: none;
+}
+
+.block_course_overview .coursechildren {
+    font-size: 12px;
+    font-weight: normal;
+    font-style: italic;
+}
+
+.block_course_overview .content {
+    margin-left: 20px;
+}
+
+.block_course_overview .profilepicture {
+    float: left;
+}
+
+.block_course_overview .welcome_area {
+    width: 100%;
+    padding-bottom: 5px;
+}
+
+.block_course_overview .welcome_message {
+    float: left;
+    padding: 10px;
+    vertical-align: middle;
+    border-collapse: separate;
+    clear: none;
+}
+
+.block_course_overview h2.title {
+    float: left;
+    font-size: 1.5em !important;
+    margin-bottom: 0;
+    margin-top: 0;
+    position: relative;
+}
+
+.block_course_overview .course_title {
+    position: relative;
+}
+
+.editing .block_course_overview h2.title {
+    left: 20px;
+}
+
+.editing .block_course_overview .coursebox .cursor {
+    cursor: move;
+    margin-bottom: 2px;
+}
+
+.editing .block_course_overview .move {
+    float: left;
+    position: absolute;
+    width: 20px;
+}
+
+.block_course_overview #course_list {
+    width: 100%;
+}
+
+.block_course_overview div.flush {
+    clear: both;
+}
+
+.block_course_overview .activity_info {
+    clear: both;
+}
+
+.block_course_overview .activity_overview {
+    padding: 2px;
+}
+
+.block_course_overview .singleselect {
+    text-align: left;
+    margin: 0;
+}
+
+.block_course_overview .coursemovetarget {display: block;height: 1em;margin-bottom: 1em;border-width: 2px;border-style: dashed;}
+
diff --git a/blocks/course_overview/version.php b/blocks/course_overview/version.php
index 68d118f7a01..a117c9f0633 100644
--- a/blocks/course_overview/version.php
+++ b/blocks/course_overview/version.php
@@ -25,6 +25,6 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-$plugin->version   = 2012061700;        // The current plugin version (Date: YYYYMMDDXX)
+$plugin->version   = 2012062800;        // The current plugin version (Date: YYYYMMDDXX)
 $plugin->requires  = 2012061700;        // Requires this Moodle version
-$plugin->component = 'block_course_overview'; // Full name of the plugin (used for diagnostics)
+$plugin->component = 'block_course_overview'; // Full name of the plugin (used for diagnostics)
\ No newline at end of file