Index: /FCKeditor/trunk/editor/_source/internals/fck.js
===================================================================
--- /FCKeditor/trunk/editor/_source/internals/fck.js	(revision 746)
+++ /FCKeditor/trunk/editor/_source/internals/fck.js	(revision 747)
@@ -815,4 +815,28 @@
 	FCKTools.AddEventListener( FCK.EditorDocument, 'mouseup', _FCK_MouseEventsListener ) ;
 
+	// Most of the CTRL key combos do not work under Safari for onkeydown and onkeypress (See #1119)
+	// But we can use the keyup event to override some of these...
+	if ( FCKBrowserInfo.IsSafari )
+	{
+		var undoFunc = function( evt )
+		{
+			if ( ! ( evt.ctrlKey || evt.metaKey ) )
+				return ;
+			if ( FCK.EditMode != FCK_EDITMODE_WYSIWYG )
+				return ;
+			switch ( evt.keyCode )
+			{
+				case 89:
+					FCKUndo.Redo() ;
+					break ;
+				case 90:
+					FCKUndo.Undo() ;
+					break ;
+			}
+		}
+
+		FCKTools.AddEventListener( FCK.EditorDocument, 'keyup', undoFunc ) ;
+	}
+
 	// Create the enter key handler
 	FCK.EnterKeyHandler = new FCKEnterKey( FCK.EditorWindow, FCKConfig.EnterMode, FCKConfig.ShiftEnterMode, FCKConfig.TabSpaces ) ;