[PATCH] AdminEnumListPlugin does not work on Firefox 17 with Trac 0.12.4

[Jun Omae]

When visiting admin panel, I got the following error.

Timestamp: 2012-11-30 12:52:36
Error: TypeError: a.attributes is null
Source File: http://example.org:3000/chrome/common/js/jquery.js
Line: 55

After applying the following patch, it works well on Firefox 17. Also, I confirmed with Chrome 24 beta, IE 8.

adminenumlistplugin/htdocs/adminenumlist.js

@@ -14 +14 @@
 
        //IE Doesn't stop selecting text when mousedown returns false we need to check
        // That onselectstart exists and return false if it does
-       var hasOnSelectStart = typeof $(document).attr('onselectstart') != 'undefined';
+       var hasOnSelectStart = document.onselectstart !== undefined;
 
        // Indicates whether we're dragging a row
        var dragging = false;

[Ryan J Ollos]

(In [12420]) Refs #10664: Check for existence of onselectstart function was not compatible with all browsers. Patch by Jun Omae (jun66j5).