Quellcode-Bibliothek helper_bug1280013.html Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/gfx/layers/apz/test/mochitest/helper_bug1280013.html

<!DOCTYPE HTML>
<html style="overflow:hidden">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=width-device; initial-scale=1.0">
  <title>Test for bug 1280013</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 type="application/javascript">
async function test() {
  ok(screen.height > 500, "Screen height must be at least 500 pixels for this test to work");

  // Scroll down to the iframe. Do it in two drags instead of one in case the
  // device screen is short.
  let transformEnd = promiseTransformEnd();
  await synthesizeNativeTouchDrag(window, 10, 200, 0, -175);
  await transformEnd;

  transformEnd = promiseTransformEnd();
  await synthesizeNativeTouchDrag(window, 10, 200, 0, -175);
  await transformEnd;

  // Now the top of the visible area should be at y=350 of the top-level page,
  // so if the screen is >= 500px tall, the entire iframe should be visible, at
  // least vertically.

  // However, because of the overflow:hidden on the root elements, all this
  // scrolling is happening in APZ and is not reflected in the main-thread
  // scroll position (it is stored in the callback transform instead). We check
  // this by checking the scroll offset.
  await promiseOnlyApzControllerFlushed();
  is(window.scrollY, 0, "Main-thread scroll position is still at 0");

  // Scroll the iframe by 150px.
  var subframe = document.getElementById("subframe");
  transformEnd = promiseTransformEnd();
  await synthesizeNativeTouchDrag(subframe, 10, 100, 0, -150);
  await transformEnd;

  // Flush any pending paints on the APZ side, and wait for the main thread
  // to process them all so that we get the correct test data
  await promiseApzFlushedRepaints();

  // get the displayport for the subframe
  var utils = SpecialPowers.getDOMWindowUtils(window);
  var contentPaints = utils.getContentAPZTestData().paints;
  var lastPaint = convertScrollFrameData(getLastNonemptyBucket(contentPaints).scrollFrames);
  var foundIt = 0;
  for (var scrollId in lastPaint) {
    if (("contentDescription" in lastPaint[scrollId]) &&
        (lastPaint[scrollId].contentDescription.includes("tall_html"))) {
      var dp = getPropertyAsRect(lastPaint, scrollId, "displayport");
      ok(dp.y <= 0, "The displayport top should be less than or equal to zero to cover the visible part of the subframe; it is " + dp.y);
      ok(dp.y + dp.height >= subframe.clientHeight, "The displayport bottom should be greater than the clientHeight; it is " + (dp.y + dp.height));
      foundIt++;
    }
  }
  is(foundIt, 1, "Found exactly one displayport for the subframe we were interested in.");
}

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

  </script>
</head>
<body style="overflow:hidden">
  The iframe below is at (0, 400). Scroll it into view, and then scroll the contents. The content should be fully rendered in high-resolution.
  <iframe id="subframe" style="position:absolute; left: 0px; top: 400px; width: 300px; height: 175px" src="helper_tall.html"></iframe>
</body>
</html>

Messung V0.5

¤ 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.0.11Bemerkung: (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.