toolkit/content/tests/widgets/test_popupreflows.xul

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/toolkit/content/tests/widgets/test_popupreflows.xul	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,104 @@
     1.4 +<?xml version="1.0"?>
     1.5 +<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
     1.6 +<?xml-stylesheet href="/tests/SimpleTest/test.css" type="text/css"?>
     1.7 +
     1.8 +<window title="Popup Reflow Tests"
     1.9 +  xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
    1.10 +
    1.11 +  <panel id="testPanel"
    1.12 +         type="arrow"
    1.13 +         noautohide="true">
    1.14 +  </panel>
    1.15 +
    1.16 +  <script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
    1.17 +
    1.18 +<script>
    1.19 +<![CDATA[
    1.20 +const {classes: Cc, interfaces: Ci, utils: Cu} = Components;
    1.21 +
    1.22 +Cu.import("resource://gre/modules/XPCOMUtils.jsm");
    1.23 +Cu.import("resource://gre/modules/Promise.jsm");
    1.24 +
    1.25 +let panel, anchor, arrow;
    1.26 +
    1.27 +// A reflow observer - it just remembers the stack trace of all sync reflows
    1.28 +// done by the panel.
    1.29 +let observer = {
    1.30 +  reflows: [],
    1.31 +  reflow: function (start, end) {
    1.32 +    this.reflows.push(new Error().stack);
    1.33 +  },
    1.34 +
    1.35 +  reflowInterruptible: function (start, end) {
    1.36 +    // We're not interested in interruptible reflows.  Why, you ask?  Because
    1.37 +    // we've simply cargo-culted this test from browser_tabopen_reflows.js!
    1.38 +  },
    1.39 +
    1.40 +  QueryInterface: XPCOMUtils.generateQI([Ci.nsIReflowObserver,
    1.41 +                                         Ci.nsISupportsWeakReference])
    1.42 +};
    1.43 +
    1.44 +// A test utility that counts the reflows caused by a test function.  If the
    1.45 +// count of reflows isn't what is expected, it causes a test failure and logs
    1.46 +// the stack trace of all seen reflows.
    1.47 +function countReflows(testfn, expected) {
    1.48 +  let deferred = Promise.defer();
    1.49 +  observer.reflows = [];
    1.50 +  let docShell = panel.ownerDocument.defaultView
    1.51 +                  .QueryInterface(Components.interfaces.nsIInterfaceRequestor)
    1.52 +                  .getInterface(Components.interfaces.nsIWebNavigation)
    1.53 +                  .QueryInterface(Components.interfaces.nsIDocShell);
    1.54 +  docShell.addWeakReflowObserver(observer);
    1.55 +  testfn().then(() => {
    1.56 +    docShell.removeWeakReflowObserver(observer);
    1.57 +    SimpleTest.is(observer.reflows.length, expected, "correct number of reflows");
    1.58 +    if (observer.reflows.length != expected) {
    1.59 +      SimpleTest.info("stack traces of reflows:\n" + observer.reflows.join("\n") + "\n");
    1.60 +    }
    1.61 +    deferred.resolve();
    1.62 +  });
    1.63 +  return deferred.promise
    1.64 +}
    1.65 +
    1.66 +function openPopup() {
    1.67 +  let deferred = Promise.defer();
    1.68 +  panel.addEventListener("popupshown", function popupshown() {
    1.69 +    panel.removeEventListener("popupshown", popupshown);
    1.70 +    deferred.resolve();
    1.71 +  });
    1.72 +  panel.openPopup(anchor, "before_start");
    1.73 +  return deferred.promise
    1.74 +}
    1.75 +
    1.76 +// ********************
    1.77 +// The actual tests...
    1.78 +// We only have one atm - simply open a popup.
    1.79 +//
    1.80 +function testSimplePanel() {
    1.81 +  return openPopup();
    1.82 +}
    1.83 +
    1.84 +// ********************
    1.85 +// The test harness...
    1.86 +//
    1.87 +SimpleTest.waitForExplicitFinish();
    1.88 +
    1.89 +addEventListener("load", function() {
    1.90 +  anchor = document.getElementById("anchor");
    1.91 +  panel = document.getElementById("testPanel");
    1.92 +  arrow = document.getAnonymousElementByAttribute(panel, "anonid", "arrow");
    1.93 +
    1.94 +  // Cancel the arrow panel slide-in transition (bug 767133) - we are only
    1.95 +  // testing reflows in the core panel implementation and not reflows that may
    1.96 +  // or may not be caused by transitioning....
    1.97 +  arrow.style.transition = "none";
    1.98 +
    1.99 +  // and off we go...
   1.100 +  countReflows(testSimplePanel, 1).then(SimpleTest.finish);
   1.101 +});
   1.102 +]]>
   1.103 +</script>
   1.104 +<body xmlns="http://www.w3.org/1999/xhtml">
   1.105 +  <p>The anchor --&gt; <span id="anchor">v</span> &lt;--</p>
   1.106 +</body>
   1.107 +</window>

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