From 3e36dd0c92435d24b9bf84aa013261e620c30d42 Mon Sep 17 00:00:00 2001
From: Jonathan Frederic <jdfreder@calpoly.edu>
Date: Mon, 14 Oct 2013 22:16:18 +0000
Subject: [PATCH] Added apply method to base model. Allows model to propogate
 changes to all views except for the one specified.

---
 IPython/html/static/notebook/js/widget.js | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/IPython/html/static/notebook/js/widget.js b/IPython/html/static/notebook/js/widget.js
index ce293abd1..f4d2b5bf9 100644
--- a/IPython/html/static/notebook/js/widget.js
+++ b/IPython/html/static/notebook/js/widget.js
@@ -25,7 +25,18 @@ var IPython = (function (IPython) {
     //-----------------------------------------------------------------------
     // WidgetModel class
     //-----------------------------------------------------------------------
-    var WidgetModel = Backbone.Model.extend({});
+    var WidgetModel = Backbone.Model.extend({
+        apply: function(sender) {
+            this.save();
+
+            for (var index in this.views) {
+                var view = this.views[index];
+                if (view !== sender) {
+                    view.refresh();    
+                }
+            }
+        }
+    });
 
 
     //-----------------------------------------------------------------------
@@ -214,7 +225,6 @@ var IPython = (function (IPython) {
                 clear_output : $.proxy(outputarea.handle_clear_output, outputarea)}
             };
         };
-        
         var model_json = model.toJSON();
         var data = {sync_method: method, sync_data: model_json};
         comm.send(data, callbacks);