The Tor Browser: layout/base/tests/test_scroll_event

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 <!DOCTYPE HTML>

     2 <html>

     3 <!--

     4 https://bugzilla.mozilla.org/show_bug.cgi?id=785588

     5 -->

     6 <head>

     7   <title>Test for Bug 785588 --- ordering of scroll-related events</title>

     8   <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>

     9   <script type="text/javascript" src="/tests/SimpleTest/EventUtils.js"></script>

    10   <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />

    11 </head>

    12 <body>

    13 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=785588">Mozilla Bug 785588</a>

    14 <div id="content">

    15   <div id="d" style="border:2px solid black; width:100px; height:100px; overflow:auto">

    16     <div id="inner" style="height:200px;">Hello</div>

    17   </div>

    18 </div>

    19 <pre id="test">

    20 <script>

    21 SimpleTest.waitForExplicitFinish();

    23 var smoothScrollPref = "general.smoothScroll";

    24 SpecialPowers.setBoolPref(smoothScrollPref, false);

    26 var d = document.getElementById("d");

    27 d.scrollTop = 0;

    28 var inner = document.getElementById("inner");

    30 var state = "initial";

    32 function onFrame() {

    33   is(state, "initial", "Must be in initial state");

    34   ok(d.scrollTop > 0, "Must have scrolled by some amount (got " + d.scrollTop + ")");

    35   state = "didOnFrame";

    36 }

    38 function onScroll() {

    39   is(state, "didOnFrame", "Must have got requestAnimationFrame callback already");

    40   ok(d.scrollTop > 0, "Must have scrolled by some amount (got " + d.scrollTop + ")");

    41   SpecialPowers.clearUserPref(smoothScrollPref);

    42   SimpleTest.finish();

    43 }

    45 function doTest() {

    46   window.getSelection().collapse(inner.firstChild, 0);

    47   window.mozRequestAnimationFrame(onFrame);

    48   d.onscroll = onScroll;

    49   sendKey("DOWN");

    50 }

    52 SimpleTest.waitForFocus(doTest);

    53 </script>

    54 </pre>

    55 </body>

    56 </html>

The Tor Browser / file revision