layout/base/tests/test_frame_reconstruction_for_svg_transforms.html

   1 <!DOCTYPE HTML>
   2 <html>
   3 <!--
   4 https://bugzilla.mozilla.org/show_bug.cgi?id=1419764
   5 -->
   6 <head>
   7   <meta charset="utf-8">
   8   <title>Test for Bug 1419764</title>
   9   <script src="/tests/SimpleTest/SimpleTest.js"></script>
  10   <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
  11   <script type="application/javascript">
  12
  13   /** Test for Bug 1419764 **/
  14
  15   SimpleTest.waitForExplicitFinish();
  16
  17   function run() {
  18     var utils = SpecialPowers.getDOMWindowUtils(window);
  19     var rect = document.querySelector("rect");
  20
  21     var matrix = rect.transform.baseVal[0].matrix;
  22
  23     matrix.e = 100;
  24     document.documentElement.offsetTop; // flush layout
  25
  26     var startcount = utils.framesConstructed;
  27
  28     matrix.e = 200;
  29     document.documentElement.offsetTop; // flush layout
  30
  31     var endcount = utils.framesConstructed;
  32     is(endcount, startcount, "should not do frame construction");
  33     SimpleTest.finish();
  34   }
  35
  36   </script>
  37 </head>
  38 <body onload="run()">
  39 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1419764">Mozilla Bug 1419764</a>
  40 <svg>
  41   <rect transform="translate(1 1)" width="20" height="20" fill="yellow"/>
  42 </svg>
  43 <pre id="test">
  44 </pre>
  45 </body>
  46 </html>