From 0c7d3f2bc45b05b216e71634625f26a301c59815 Mon Sep 17 00:00:00 2001
From: Andrew Davis <andrew@moodle.com>
Date: Fri, 4 Apr 2014 09:59:48 +0800
Subject: [PATCH 1/2] MDL-44780 filter_mathjaxloader: switched mathjax filter
 on by default

---
 filter/mathjaxloader/db/install.php | 33 +++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 filter/mathjaxloader/db/install.php

diff --git a/filter/mathjaxloader/db/install.php b/filter/mathjaxloader/db/install.php
new file mode 100644
index 00000000000..49496ae59d1
--- /dev/null
+++ b/filter/mathjaxloader/db/install.php
@@ -0,0 +1,33 @@
+<?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/>.
+
+/**
+ * Mathjax filter post install hook
+ *
+ * @package    filter
+ * @subpackage mathjaxloader
+ * @copyright  2014 onwards Andrew Davis (andyjdavis)
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+function xmldb_filter_mathjaxloader_install() {
+    global $CFG;
+    require_once("$CFG->libdir/filterlib.php");
+
+    filter_set_global_state('mathjaxloader', TEXTFILTER_ON);
+}

From feac5dc7ba78c876f847ed8ec13fb605ca8bad6b Mon Sep 17 00:00:00 2001
From: Andrew Davis <andrew@moodle.com>
Date: Wed, 23 Apr 2014 16:56:08 +0800
Subject: [PATCH 2/2] MDL-44780 filter_mathjaxloader: mathjax is now at the top
 of the filter list

---
 filter/activitynames/db/install.php | 2 +-
 filter/mathjaxloader/db/install.php | 2 +-
 lib/filterlib.php                   | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/filter/activitynames/db/install.php b/filter/activitynames/db/install.php
index ea065a5616c..cc0a7942fc4 100644
--- a/filter/activitynames/db/install.php
+++ b/filter/activitynames/db/install.php
@@ -26,6 +26,6 @@ function xmldb_filter_activitynames_install() {
     global $CFG;
     require_once("$CFG->libdir/filterlib.php");
 
-    filter_set_global_state('activitynames', TEXTFILTER_ON);
+    filter_set_global_state('activitynames', TEXTFILTER_ON, 1);
 }
 
diff --git a/filter/mathjaxloader/db/install.php b/filter/mathjaxloader/db/install.php
index 49496ae59d1..8a9724b6141 100644
--- a/filter/mathjaxloader/db/install.php
+++ b/filter/mathjaxloader/db/install.php
@@ -29,5 +29,5 @@ function xmldb_filter_mathjaxloader_install() {
     global $CFG;
     require_once("$CFG->libdir/filterlib.php");
 
-    filter_set_global_state('mathjaxloader', TEXTFILTER_ON);
+    filter_set_global_state('mathjaxloader', TEXTFILTER_ON, -1);
 }
diff --git a/lib/filterlib.php b/lib/filterlib.php
index 0f6072c1dfd..5aca116f7ab 100644
--- a/lib/filterlib.php
+++ b/lib/filterlib.php
@@ -527,7 +527,7 @@ function filter_get_all_installed() {
  *
  * @param string $filtername The filter name, for example 'tex'.
  * @param int $state One of the values TEXTFILTER_ON, TEXTFILTER_OFF or TEXTFILTER_DISABLED.
- * @param int $move 1 means up, 0 means the same, -1 means down
+ * @param int $move -1 means up, 0 means the same, 1 means down
  */
 function filter_set_global_state($filtername, $state, $move = 0) {
     global $DB;