Ticket #5882: 5882.patch

_source/plugins/dialog/plugin.js

@@ -938 +938 @@
                  */
                 selectPage : function( id )
                 {
+                        if ( this._.currentTabId === id )
+                                return;
+
+                        // Returning true means that the event has been canceled
+                        if ( this.fire( 'selectPage', { page : id, currentPage : this._.currentTabId } ) === true )
+                                return;
+
                         // Hide the non-selected tabs and pages.
                         for ( var i in this._.tabs )
                         {
@@ -2948 +2955 @@
  * @param {CKEDITOR.editor} editor The editor instance that will use the
  *              dialog.
  */
+
+/**
+ * Fired when a tab is going to be selected in a dialog
+ * @name dialog#selectPage
+ * @event
+ * @param String page The id of the page that it's gonna be selected.
+ * @param String currentPage The id of the current page.
+ */