<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=709256
-->
<head>
  <title>Test for Bug 709256</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=709256">Mozilla Bug 709256</a>
<p id="display">
<iframe id="test"
        style="width: 100px" srcdoc="<body style='width: 100%'>">
</iframe>
</p>
<div id="content" style="display: none">
  
</div>
<pre id="test">
<script type="application/javascript">

/** Test for Bug 709256 **/
SimpleTest.waitForExplicitFinish();
addLoadEvent(function() {
  var ifr = $("test");
  var bod = ifr.contentDocument.body;

  is(bod.getBoundingClientRect().width, 100,
    "Width of body should be 100px to start with");

  var resizeHandlerRan = false;

  function handleResize() {
    resizeHandlerRan = true;
    is(bod.getBoundingClientRect().width, 50,
       "Width of body should now be 50px");
  }

  var win = ifr.contentWindow;

  win.addEventListener("resize", handleResize);
  SpecialPowers.setFullZoom(win, 2);

  is(resizeHandlerRan, false,
     "Resize handler should not have run yet for this test to be valid");

  // Now flush out layout on the subdocument, to trigger the resize handler
  is(bod.getBoundingClientRect().width, 50, "Width of body should still be 50px");
  window.requestAnimationFrame(function() {
    is(resizeHandlerRan, true, "Resize handler should have run");
    win.removeEventListener("resize", handleResize);
    SimpleTest.finish();
  });
});
</script>
</pre>
</body>
</html>
