author Cosmin Sabou <>
Sun, 05 Feb 2023 19:37:33 +0000
changeset 651812 d8601249f1eb8c52c742b0c19c9ca0fa8f2e31fe
parent 592406 5d5c2ceea4f307efbbcb503a3a3a4179e3d898e7
permissions -rw-r--r--
Bug 1806090 - temporarily disable browser_quickactions.js on linux for frequent failures. r=intermittent-reviewers,MasterWayZ Differential Revision:

  <title>Hit-testing on the special setup from fixed-pos-scrolled-clip-3.html</title>
  <script type="application/javascript" src="apz_test_utils.js"></script>
  <script type="application/javascript" src="apz_test_native_event_utils.js"></script>
  <script src="/tests/SimpleTest/paint_listener.js"></script>
  <meta name="viewport" content="width=device-width"/>
body {
  margin: 0;
  height: 4000px;

.transform {
  transform: translate(10px, 10px);
  width: 500px;

.subframe {
  height: 600px;
  overflow: auto;
  box-shadow: 0 0 0 2px black;

.scrolled {
  height: 4000px;
  position: relative;

.absoluteClip {
  position: absolute;
  top: 300px;
  left: 100px;
  width: 200px;
  height: 200px;
  background: red;
  clip: rect(auto auto auto auto);

.fixed {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: linear-gradient(lime, lime) black 0 100px no-repeat;
  background-size: 100% 200px;
<!-- This is lifted from layout/reftests/async-scrolling/fixed-pos-scrolled-clip-3.html -->
<div class="transform">
  <div class="subframe">
    <div class="scrolled">
      <div class="absoluteClip">
        <div class="fixed"></div>
<script type="application/javascript">

async function test() {
  var config = getHitTestConfig();
  var utils = config.utils;

  // layerize the scrollable frame
  var subframe = document.querySelector(".subframe");
  utils.setDisplayPortForElement(0, 0, 800, 2000, subframe, 1);
  await promiseApzFlushedRepaints();

  var target = document.querySelector(".absoluteClip");
  // The fixed item is fixed with respect to the transform, which is
  // outside the subframe, so we should scroll the root scroll frame,
  // not the subframe.
                 "fixed item inside a scrolling transform");

.then(subtestDone, subtestFailed);