gfx/layers/apz/test/mochitest/helper_bug1346632.html
author Sebastian Hengst <archaeopteryx@coole-files.de>
Sun, 05 Feb 2023 13:12:06 +0100
changeset 651755 2e6262a410b7c25a3a7349825a7367462d4420fa
parent 568517 d21beb1903057d0c63df0ebf0eca813d0441c5e7
permissions -rw-r--r--
Bug 1815090 - regenerate certificates in build/pgo/certs/. a=me * the build/pgo/certs/ changes were made using `./mach python build/pgo/genpgocert.py`

<!DOCTYPE HTML>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width; initial-scale=1.0">
  <title>Dragging the scrollbar on a page with a fixed-positioned element just past the right edge of the content</title>
  <script type="application/javascript" src="apz_test_native_event_utils.js"></script>
  <script type="application/javascript" src="apz_test_utils.js"></script>
  <script src="/tests/SimpleTest/paint_listener.js"></script>
  <style>
    body {
      height: 2000px;
    }
    #fixed {
      width: 240px;
      height: 100%;
      position: fixed;
      top: 0px;
      right: -240px;
      z-index: 1000;
      overflow-y: scroll;
    }
    #fixed-content {
      height: 2000px;
    }
  </style>
  <script type="text/javascript">
async function test() {
  var root = document.scrollingElement;
  var scrollPos = root.scrollTop;
  var scrollPromise = new Promise((resolve, reject) => {
    document.addEventListener("scroll", () => {
      ok(root.scrollTop > scrollPos, "document scrolled after dragging scrollbar");
      resolve();
    }, {once: true});
  });

  if (window.innerWidth == root.clientWidth) {
    // No scrollbar, abort the test. This can happen e.g. on local macOS runs
    // with OS settings to only show scrollbars on trackpad/mouse activity.
    ok(false, "No scrollbars found, cannot run this test!");
    return;
  }

  var scrollbarX = (window.innerWidth + root.clientWidth) / 2;
  // Move the mouse to the scrollbar
  await promiseNativeMouseEventWithAPZ({
    target: root,
    offsetX: scrollbarX,
    offsetY: 100,
    type: "mousemove",
  });
  // mouse down
  await promiseNativeMouseEventWithAPZ({
    target: root,
    offsetX: scrollbarX,
    offsetY: 100,
    type: "mousedown",
  });
  // drag vertically
  await promiseNativeMouseEventWithAPZ({
    target: root,
    offsetX: scrollbarX,
    offsetY: 150,
    type: "mousemove",
  });
  // wait for the scroll listener to fire
  await scrollPromise;
  // and release
  await promiseNativeMouseEventWithAPZ({
    target: root,
    offsetX: scrollbarX,
    offsetY: 150,
    type: "mouseup",
  });
}

waitUntilApzStable()
.then(test)
.then(subtestDone, subtestFailed);

  </script>
</head>
<body>
  <div id="fixed">
    <p id="fixed-content"></p>
  </div>
</body>
</html>