From 8bf4ffa2ca095ae4ddbd8cd1e05f48170374bde7 Mon Sep 17 00:00:00 2001
From: Paul Ivanov <pi@berkeley.edu>
Date: Sun, 9 Mar 2014 14:15:47 -0700
Subject: [PATCH] rebuild.QuickHelp event sets the dirty bit

QuickHelp is rebuilt on show if the dirty bit was set.
---
 IPython/html/static/base/js/keyboard.js      | 4 ++--
 IPython/html/static/notebook/js/quickhelp.js | 6 ++++++
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/IPython/html/static/base/js/keyboard.js b/IPython/html/static/base/js/keyboard.js
index 952c384c1..7a8a80f26 100644
--- a/IPython/html/static/base/js/keyboard.js
+++ b/IPython/html/static/base/js/keyboard.js
@@ -189,7 +189,7 @@ IPython.keyboard = (function (IPython) {
         this._shortcuts[shortcut] = data;
         if (!suppress_help_update) {
             // update the keyboard shortcuts notebook help
-            IPython.quick_help = new IPython.QuickHelp();
+            $([IPython.events]).trigger('rebuild.QuickHelp')
         }
     }
 
@@ -209,7 +209,7 @@ IPython.keyboard = (function (IPython) {
         IPython.quick_help = new IPython.QuickHelp();
         if (!suppress_help_update) {
             // update the keyboard shortcuts notebook help
-            IPython.quick_help = new IPython.QuickHelp();
+            $([IPython.events]).trigger('rebuild.QuickHelp');
         }
     }
 
diff --git a/IPython/html/static/notebook/js/quickhelp.js b/IPython/html/static/notebook/js/quickhelp.js
index 29cb3def6..907e2d0d0 100644
--- a/IPython/html/static/notebook/js/quickhelp.js
+++ b/IPython/html/static/notebook/js/quickhelp.js
@@ -18,6 +18,10 @@ var IPython = (function (IPython) {
     QuickHelp.prototype.show_keyboard_shortcuts = function () {
         // toggles display of keyboard shortcut dialog
         var that = this;
+        if ( this.force_rebuild ) {
+            delete(this.shortcut_dialog);
+            this.force_rebuild = false;
+        }
         if ( this.shortcut_dialog ){
             // if dialog is already shown, close it
             $(this.shortcut_dialog).modal("toggle");
@@ -57,6 +61,8 @@ var IPython = (function (IPython) {
                 Close : {}
             }
         });
+        
+        $([IPython.events]).on('rebuild.QuickHelp', function() { that.force_rebuild = true;});
     };
 
     QuickHelp.prototype.build_command_help = function () {