test_popup_preventdefault.xhtml

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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 Prevent Default Tests"

  onload="setTimeout(runTest, 0);"

  xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">

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

<!--

  This tests checks that preventDefault can be called on a popupshowing

  event and that preventDefault has no effect for the popuphiding event.

-->

<script>

SimpleTest.waitForExplicitFinish();

var gBlockShowing = true;

var gShownNotAllowed = true;

function runTest()

  document.getElementById("menu").open = true;

function popupShowing(event)

  if (gBlockShowing) {

    event.preventDefault();

    gBlockShowing = false;

    setTimeout(function() {

                 gShownNotAllowed = false;

                 document.getElementById("menu").open = true;

               }, 3000, true);

function popupShown()

  ok(!gShownNotAllowed, "popupshowing preventDefault");

  document.getElementById("menu").open = false;

function popupHiding(event)

  // since this is a content test, preventDefault should have no effect

  event.preventDefault();

function popupHidden()

  ok(true, "popuphiding preventDefault not allowed");

  SimpleTest.finish();

</script>

<button id="menu" type="menu" label="Menu">

  <menupopup onpopupshowing="popupShowing(event);"

             onpopupshown="popupShown();"

             onpopuphiding="popupHiding(event);"

             onpopuphidden="popupHidden();">

    <menuitem label="Item"/>

  </menupopup>

</button>

<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>