test_bug469774.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"?>

<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=469774

-->

<window title="Mozilla Bug 469774"

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

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

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

<vbox height="50"/>

<menupopup id="popup">

  <input xmlns="http://www.w3.org/1999/xhtml"  id="textbox"/>

</menupopup>

<body  xmlns="http://www.w3.org/1999/xhtml">

  <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=469774">Mozilla Bug 469774</a>

  <p id="display"></p>

<div id="content" style="display: none">

</div>

</body>

<script class="testbody" type="application/javascript"><![CDATA[

/** Test for Bug 469774 **/

// Test whether menu popups are blocked from being painted in their parent window.

// Like snapshotWindow, but with DRAWWINDOW_DRAW_CARET

function snapShot() {

  var canvas = document.createElementNS("http://www.w3.org/1999/xhtml", "canvas");

  canvas.setAttribute("width", 200);

  canvas.setAttribute("height", 50);

  var ctx = canvas.getContext("2d");

  ctx.drawWindow(window, 0, 0, 200, 50, "transparent", ctx.DRAWWINDOW_DRAW_CARET);

  return canvas;

function doTest() {

  window.removeEventListener("focus", doTest);

  var before = snapShot();

  var popup = document.getElementById("popup");

  popup.openPopup(null, "after_start", 0, 0, false, false);

  popup.addEventListener("popupshown", function() {

    var textbox = document.getElementById("textbox");

    textbox.focus(); // show caret

    var after = snapShot();

    var equal, str1, str2;

    [equal, str1, str2] = compareSnapshots(after, before, true);

    ok(equal, "Showing a popup shouldn't affect drawing in its parent window" +

       "got " + str1 + ", expected " + str2);

    popup.hidePopup();

    SimpleTest.finish();

});

SimpleTest.waitForExplicitFinish();

window.addEventListener("focus", doTest);

]]></script>

</window>