From: Scott González Date: Tue, 31 Jul 2012 20:27:43 +0000 (-0400) Subject: Mouse: Don't try to unbind delegated event handlers if they don't exist. Fixes #8416... X-Git-Tag: 1.8.23~6 X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=25f20b18bd43dd4259b64e016d397ba45f5c6934;p=jquery-ui.git Mouse: Don't try to unbind delegated event handlers if they don't exist. Fixes #8416 - Draggable breaks during drag if any other draggable is removed or destroyed. (cherry picked from commit e68bee9b84b16ee8a757a7a1f44d93f4ba78c656) --- diff --git a/ui/jquery.ui.mouse.js b/ui/jquery.ui.mouse.js index 1767de8fb..de76ad439 100644 --- a/ui/jquery.ui.mouse.js +++ b/ui/jquery.ui.mouse.js @@ -45,9 +45,11 @@ $.widget("ui.mouse", { // other instances of mouse _mouseDestroy: function() { this.element.unbind('.'+this.widgetName); - $(document) - .unbind('mousemove.'+this.widgetName, this._mouseMoveDelegate) - .unbind('mouseup.'+this.widgetName, this._mouseUpDelegate); + if ( this._mouseMoveDelegate ) { + $(document) + .unbind('mousemove.'+this.widgetName, this._mouseMoveDelegate) + .unbind('mouseup.'+this.widgetName, this._mouseUpDelegate); + } }, _mouseDown: function(event) {