From b5fe8d61dd14552d8e8673e79701ca1ba0850ea3 Mon Sep 17 00:00:00 2001
From: Pascal Deklerck <pascal.deklerck@gmail.com>
Date: Thu, 7 Jun 2018 22:37:40 +0200
Subject: [PATCH] 5118 Implement MathJax JS hook to update contents after live
 update

---
 mathjax/mathjax.js  | 5 +++++
 mathjax/mathjax.php | 7 +++++++
 2 files changed, 12 insertions(+)
 create mode 100644 mathjax/mathjax.js

diff --git a/mathjax/mathjax.js b/mathjax/mathjax.js
new file mode 100644
index 00000000..1ab5531b
--- /dev/null
+++ b/mathjax/mathjax.js
@@ -0,0 +1,5 @@
+Addon_registerHook("postprocess","mathjax_postprocess_liveupdate");
+function mathjax_postprocess_liveupdate()
+{
+	MathJax.Hub.Queue(["Typeset",MathJax.Hub]);
+}
diff --git a/mathjax/mathjax.php b/mathjax/mathjax.php
index 7d1a8134..37b2748c 100644
--- a/mathjax/mathjax.php
+++ b/mathjax/mathjax.php
@@ -16,12 +16,19 @@ function mathjax_install() {
     Addon::registerHook('page_header', 'addon/mathjax/mathjax.php', 'mathjax_page_header');
     Addon::registerHook('addon_settings', 'addon/mathjax/mathjax.php', 'mathjax_settings');
     Addon::registerHook('addon_settings_post', 'addon/mathjax/mathjax.php', 'mathjax_settings_post');
+    Addon::registerHook('template_vars','addon/mathjax/mathjax.php', 'mathjax_template_vars');
     logger('installed js_math addon');
 }
+
+function mathjax_template_vars($a, &$arr) {
+    $arr['vars']['addon_hooks'][] = "mathjax";
+}
+
 function mathjax_uninstall() {
     Addon::unregisterHook('page_header', 'addon/mathjax/mathjax.php', 'mathjax_page_header');
     Addon::unregisterHook('addon_settings', 'addon/mathjax/mathjax.php', 'mathjax_settings');
     Addon::unregisterHook('addon_settings_post', 'addon/mathjax/mathjax.php', 'mathjax_settings_post');
+    Addon::unregisterHook('template_vars','addon/mathjax/mathjax.php', 'mathjax_template_vars');
 }
 function mathjax_settings_post ($a, $post) {
     if (! local_user())