Mouse: Work around a bug in IE 8 where disabled inputs don't have a nodeName. Fixes...

diff --git a/ui/jquery.ui.mouse.js b/ui/jquery.ui.mouse.js
index 3e6ead8cd76c595ff340b1d63873f0323896c808..888fbedfed206a79353204e21009bab6e0281294 100644 (file)
--- a/ui/jquery.ui.mouse.js
+++ b/ui/jquery.ui.mouse.js
@@ -59,7 +59,9 @@ $.widget("ui.mouse", {
 
                var self = this,
                        btnIsLeft = (event.which == 1),
-                       elIsCancel = (typeof this.options.cancel == "string" ? $(event.target).closest(this.options.cancel).length : false);
+                       // event.target.nodeName works around a bug in IE 8 with
+                       // disabled inputs (#7620)
+                       elIsCancel = (typeof this.options.cancel == "string" && event.target.nodeName ? $(event.target).closest(this.options.cancel).length : false);
                if (!btnIsLeft || elIsCancel || !this._mouseCapture(event)) {
                        return true;
                }