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<?xml version="1.0"?>
<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
<?xml-stylesheet href="chrome://mochikit/content/tests/SimpleTest/test.css" type="text/css"?>

<window title="Popup Recreate Test"
  onload="setTimeout(init, 0)"
  xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">

  <script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>      
  <script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"></script>      

<!--
  This is a test for bug 388361.

  This test checks that a menulist's popup is properly created and sized when
  the popup node is removed and another added in its place.

  -->

<script>
<![CDATA[
SimpleTest.waitForExplicitFinish();

var gState = "before";

function init()
{
  document.getElementById("menulist").open = true;
}

function isWithinHalfPixel(a, b)
{
  return Math.abs(a - b) <= 0.5;
}

function recreate()
{
  if (gState == "before") {
    var element = document.getElementById("menulist");
    while (element.hasChildNodes())
      element.removeChild(element.firstChild);
    element.appendItem("Cat");
    gState = "after";
    document.getElementById("menulist").open = true;
  }
  else {
    SimpleTest.finish();
  }
}

function checkSize()
{
  var menulist = document.getElementById("menulist");
  var menurect = menulist.getBoundingClientRect();
  var popuprect = menulist.menupopup.getBoundingClientRect();

  let marginLeft = parseFloat(getComputedStyle(menulist.menupopup).marginLeft);
  ok(isWithinHalfPixel(menurect.left + marginLeft, popuprect.left), "left position " + gState);
  ok(isWithinHalfPixel(menurect.right + marginLeft, popuprect.right), "right position " + gState);
  ok(Math.round(popuprect.right) - Math.round(popuprect.left) > 0, "height " + gState)
  document.getElementById("menulist").open = false;
}
]]>
</script>

<hbox align="center" pack="center">
  <menulist id="menulist" onpopupshown="checkSize();" onpopuphidden="recreate();">
    <menupopup position="after_start">
      <menuitem label="Cat"/>
    </menupopup>
  </menulist>
</hbox>

<body xmlns="http://www.w3.org/1999/xhtml">
<p id="display">
</p>
<div id="content" style="display: none">
</div>
<pre id="test">
</pre>
</body>

</window>