The Tor Browser / file revision

 // |reftest| skip-if(xulRuntime.OS=="WINNT"&&isDebugBuild) slow

 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

 /* This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

 //-----------------------------------------------------------------------------

 var BUGNUMBER = 127243;

 var summary = 'Do not crash on watch';

 var actual = 'No Crash';

 var expect = 'No Crash';

 printBugNumber(BUGNUMBER);

 printStatus (summary);

 if (typeof window != 'undefined' && typeof document != 'undefined') 

 {

   // delay test driver end

   gDelayTestDriverEnd = true;

   window.addEventListener('load', handleLoad, false);

 }

 else

 {

   printStatus('This test must be run in the browser');

   reportCompare(expect, actual, summary);

 }

 var div;

 function handleLoad()

 {

   div = document.createElement('div');

   document.body.appendChild(div);

   div.setAttribute('id', 'id1');

   div.style.width = '50px';

   div.style.height = '100px';

   div.style.overflow = 'auto';

   for (var i = 0; i < 5; i++)

   {

     var p = document.createElement('p');

     var t = document.createTextNode('blah');

     p.appendChild(t);

     div.appendChild(p);

   }

   div.watch('scrollTop', wee);

   setTimeout('setScrollTop()', 1000);

 }

 function wee(id, oldval, newval)

 {

   var t = document.createTextNode('setting ' + id +

                                   ' value ' + div.scrollTop +

                                   ' oldval ' + oldval +

                                   ' newval ' + newval);

   var p = document.createElement('p');

   p.appendChild(t);

   document.body.appendChild(p);

   return newval;

 }

 function setScrollTop()

 {

   div.scrollTop = 42;

   reportCompare(expect, actual, summary);

   gDelayTestDriverEnd = false;

   jsTestDriverEnd();

 }