Quelle helper_bug1509575.html Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/gfx/layers/apz/test/mochitest/helper_bug1509575.html

<!DOCTYPE HTML>
<html>

<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Test for Bug 1509575</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>
  <script src="/tests/SimpleTest/EventUtils.js"></script>
</head>
<body>
  <div id="expand" style="background-color: paleturquoise ;">
    Now you're scrolled, now you're not?
  </div>
  <script type="application/javascript">

async function test() {
  let transformEndPromise = promiseTransformEnd();
  await synthesizeNativeTouchDrag(document.body, 10, 100, -100, 0);
  dump("Finished native drag, waiting for transform-end observer...\n");

  // Wait for the APZ:TransformEnd to be fired after touch events are processed.
  await transformEndPromise;

  // Flush state.
  await promiseApzFlushedRepaints();

  is(window.scrollX, 0, "layout viewport didn't scroll");
  let visualX = window.visualViewport.pageLeft;
  ok(visualX > 0, "visual viewport did scroll");

  let topWinUtils;
  const isE10s = SpecialPowers.Services.appinfo.browserTabsRemoteAutostart;
  // We need to reset the first paint flag on the root document in the process
  // this test is loaded in.
  if (!isE10s) {
    // For non-e10s, such as in Fennec, this means we need the *chrome* window
    // as the topmost entitiy in this process.
    topWinUtils = SpecialPowers.getDOMWindowUtils(
        SpecialPowers._getTopChromeWindow(window));
  } else {
    topWinUtils = SpecialPowers.getDOMWindowUtils(window);
  }
  let afterPaintPromise = promiseAfterPaint();
  ok(topWinUtils.isFirstPaint === false, "first paint not set");
  topWinUtils.isFirstPaint = true;
  // do something that forces a paint *and* an APZ update.
  document.getElementById("expand").style.width = "6000px";

  // Wait for the event listener to fire.
  await afterPaintPromise;
  ok(true, "MozAfterPaint fired");

  // Flush state just to be sure.
  await promiseApzFlushedRepaints();

  is(window.visualViewport.pageLeft, visualX, "visual viewport remains unchanged");
}

SpecialPowers.getDOMWindowUtils(window).setResolutionAndScaleTo(2.0);
waitUntilApzStable()
.then(test)
.then(subtestDone, subtestFailed);

  </script>
</body>
</html>

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