Ticket #4999: 4999_2.patch

_source/core/editor.js

@@ -582 +582 @@
                  *
                  * @param {String} data HTML code to replace the curent content in the editor.
                  * @param {Function} callback Function to be called after the setData is completed.
+                 * @param {Boolean} noUndo Specify false to avoid editor from creating undo snapshot for this load.    
                  * @example
                  * CKEDITOR.instances.editor1.<b>setData( '&lt;p&gt;This is the editor data.&lt;/p&gt;' )</b>;
                  * CKEDITOR.instances.editor1.setData( '&lt;p&gt;Some other editor data.&lt;/p&gt;', function()
@@ -589 +590 @@
                  *              CKEDITOR.instances.editor1.checkDirty();        // true
                  * } );
                  */
-                setData : function( data , callback )
+                setData : function( data , callback, noUndo )
                 {
-                        if( callback )
-                        {
-                                this.on( 'dataReady', function( evt )
+                        noUndo !== false && this.fire( 'saveSnapshot' );
+
+                        this.on( 'dataReady', function( evt )
                                 {
                                         evt.removeListener();
-                                        callback.call( evt.editor );
-                                } );
-                        }
+                                        callback && callback.call( evt.editor );
+                                        noUndo !== false && this.fire( 'saveSnapshot' );
+                                });
                         // Fire "setData" so data manipulation may happen.
                         var eventData = { dataValue : data };
                         this.fire( 'setData', eventData );