layout/base/tests/test_after_paint_pref.html

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/layout/base/tests/test_after_paint_pref.html	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,123 @@
     1.4 +<!DOCTYPE HTML>
     1.5 +<html>
     1.6 +<!--
     1.7 +https://bugzilla.mozilla.org/show_bug.cgi?id=608030
     1.8 +-->
     1.9 +<head>
    1.10 +  <title>Test for MozAfterPaint pref Bug 608030</title>
    1.11 +  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
    1.12 +  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
    1.13 +</head>
    1.14 +<body>
    1.15 +<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=608030">Mozilla Bug 608030</a>
    1.16 +<div id="display" style="width: 10em; height: 5em; background-color: red"></div>
    1.17 +<pre id="test">
    1.18 +<script type="application/javascript">
    1.19 +
    1.20 +/** Test for Bug 608030 **/
    1.21 +
    1.22 +function get_pref()
    1.23 +{
    1.24 +  return SpecialPowers.getBoolPref("dom.send_after_paint_to_content");
    1.25 +}
    1.26 +
    1.27 +function set_pref(val)
    1.28 +{
    1.29 +  SpecialPowers.setBoolPref("dom.send_after_paint_to_content", val);
    1.30 +}
    1.31 +
    1.32 +SimpleTest.waitForExplicitFinish();
    1.33 +
    1.34 +window.addEventListener("load", step0, false);
    1.35 +
    1.36 +is(get_pref(), true, "pref defaults to true in mochitest harness");
    1.37 +
    1.38 +function print_rect(rect) {
    1.39 +  return "(top=" + rect.top + ",left=" + rect.left + ",width=" + rect.width + ",height=" + rect.height + ")";
    1.40 +}
    1.41 +
    1.42 +function print_event(event) {
    1.43 +  var res = "boundingClientRect=" + print_rect(event.boundingClientRect);
    1.44 +  var rects = event.clientRects;
    1.45 +  for (var i = 0; i < rects.length; ++i) {
    1.46 +    res += " clientRects[" + i + "]=" + print_rect(rects[i]);
    1.47 +  }
    1.48 +  return res;
    1.49 +}
    1.50 +
    1.51 +function step0(event) {
    1.52 +  // Wait until we get the MozAfterPaint following the load event
    1.53 +  // before starting.
    1.54 +  ok(true, "loaded");
    1.55 +  window.addEventListener("MozAfterPaint", step1, false);
    1.56 +
    1.57 +  // Ensure a MozAfterPaint event is fired
    1.58 +  div.style.backgroundColor = "yellow";
    1.59 +}
    1.60 +
    1.61 +var start;
    1.62 +var div = document.getElementById("display");
    1.63 +
    1.64 +function step1(event)
    1.65 +{
    1.66 +  ok(true, "step1 reached: " + print_event(event));
    1.67 +  window.removeEventListener("MozAfterPaint", step1, false);
    1.68 +
    1.69 +  start = Date.now();
    1.70 +
    1.71 +  window.addEventListener("MozAfterPaint", step2, false);
    1.72 +
    1.73 +  div.style.backgroundColor = "blue";
    1.74 +}
    1.75 +
    1.76 +function step2(event)
    1.77 +{
    1.78 +  ok(true, "step2 reached: " + print_event(event));
    1.79 +  window.removeEventListener("MozAfterPaint", step2, false);
    1.80 +
    1.81 +  var end = Date.now();
    1.82 +  var timeout = 3 * Math.max(end - start, 300);
    1.83 +
    1.84 +  ok(true, "got MozAfterPaint (timeout for next step is " + timeout + "ms)");
    1.85 +
    1.86 +  // Set the pref for our second test
    1.87 +  set_pref(false);
    1.88 +
    1.89 +  // When there was previously another page in our window, we seem to
    1.90 +  // get duplicate events, simultaneously, so we need to register our
    1.91 +  // next listener after a zero timeout.
    1.92 +  setTimeout(step3, 0, timeout);
    1.93 +}
    1.94 +function step3(timeout)
    1.95 +{
    1.96 +  ok(true, "step3 reached");
    1.97 +  window.addEventListener("MozAfterPaint", failstep, false);
    1.98 +
    1.99 +  div.style.backgroundColor = "fuchsia";
   1.100 +
   1.101 +  setTimeout(step4, timeout);
   1.102 +}
   1.103 +
   1.104 +function failstep(event)
   1.105 +{
   1.106 +  ok(true, "failstep reached: " + print_event(event));
   1.107 +  ok(false, "got MozAfterPaint when we should not have");
   1.108 +}
   1.109 +
   1.110 +function step4()
   1.111 +{
   1.112 +  ok(true, "step4 reached"); // If we didn't get the failure in failstep,
   1.113 +                             // then we passed.
   1.114 +
   1.115 +  window.removeEventListener("MozAfterPaint", failstep, false);
   1.116 +
   1.117 +  // Set the pref back in its initial state.
   1.118 +  set_pref(true);
   1.119 +
   1.120 +  SimpleTest.finish();
   1.121 +}
   1.122 +
   1.123 +</script>
   1.124 +</pre>
   1.125 +</body>
   1.126 +</html>

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