Quelle helper_hittest_fixed.html Sprache: HTML

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

<!DOCTYPE HTML>
<html>
<head>
  <title>APZ hit-testing of fixed content when async-scrolled</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"/>
  <style>
    html, body {
      margin: 0;
    }
    #fixed {
      position: fixed;
      height: 300px;
      width: 100%;
      top: 0;
      background: blue;
    }
    #target {
      margin-top: 100px;
      margin-left: 100px;
      height: 20px;
      width: 20px;
      background: red;
    }
  </style>
</head>
<body>
<div id="fixed">
   <div id="target"></div>
</div>
<div id="make_root_scrollable" style="height: 5000px"></div>
</body>
<script type="application/javascript">

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

  // Async scroll the page by 50 pixels. The scroll does not move
  // the fixed element.
  utils.setAsyncScrollOffset(document.documentElement, 0, 50);
  // Tick the refresh driver once to make sure the compositor has applied the
  // async scroll offset (for WebRender hit-testing we need to make sure WR has
  // the latest info).
  utils.advanceTimeAndRefresh(16);
  utils.restoreNormalRefresh();

  let clickPromise = new Promise(resolve => {
    target.addEventListener("click", e => {
      ok(true, "Target was hit");
      e.stopPropagation();  // do not propagate event to |fixed| ancestor
      resolve();
    });
    fixed.addEventListener("click", () => {
      // Since target's listener calls stopPropagation(), if we get here
      // then the coordinates of the click event did not correspond to
      // |target|, but somewhere else on |fixed|.
      ok(false, "Fixed ancestor should not be hit");
      resolve();
    });
  });

  // Synthesize a click at (110, 110), which should hit |target| (a
  // descendant of |fixed|) regardless of the async scroll.
  await synthesizeNativeMouseEventWithAPZ({
    type: "click",
    target: window,
    offsetX: 110,
    offsetY: 110
  });

  await clickPromise;
}

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

</script>
</html>

Messung V0.5

¤ Dauer der Verarbeitung: 0.11 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.