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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="Blinking Context Menu Item Tests"
        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">

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

  <menulist id="menulist">
    <menupopup id="menupopup">
      <menuitem label="Menu Item" id="menuitem"/>
    </menupopup>
  </menulist>
<script class="testbody" type="application/javascript">
<![CDATA[

SimpleTest.waitForExplicitFinish();
SimpleTest.waitForFocus(startTest);

function startTest() {
  if (!/Mac/.test(navigator.platform)) {
    ok(true, "Nothing to test on non-Mac.");
    SimpleTest.finish();
    return;
  }
  test_crash();
}

function test_crash() {
  var menupopup = document.getElementById("menupopup");
  var menuitem = document.getElementById("menuitem");
  menupopup.addEventListener("popupshown", function () {
    menuitem.addEventListener("mouseup", function () {
      const observer = new MutationObserver((aMutationList, aObserver) => {
        for (const mutation of aMutationList) {
          if (mutation.attributeName != "_moz-menuactive") {
            continue;
          }
          menuitem.hidden = true;
          menuitem.getBoundingClientRect();
          ok(true, "Didn't crash on _moz-menuactive mutation")
          menuitem.hidden = false;
          aObserver.disconnect();
          SimpleTest.executeSoon(function () {
            menupopup.hidePopup();
          });
        }
      });
      observer.observe(menuitem, { attributes: true });
    }, {once: true});
    menupopup.addEventListener("popuphidden", SimpleTest.finish, {once: true});
    synthesizeMouse(menuitem, 10, 5, { type : "mousemove" });
    synthesizeMouse(menuitem, 10, 5, { type : "mousemove" });
    synthesizeMouse(menuitem, 10, 5, { type : "mousedown" });
    SimpleTest.executeSoon(function () {
      synthesizeMouse(menuitem, 10, 5, { type : "mouseup" });
    });
  }, {once: true});
  document.getElementById("menulist").open = true;
}

]]>
</script>

<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>