Quelle test_bug1639328.html Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/dom/base/test/test_bug1639328.html

<!DOCTYPE HTML>
<meta charset="utf-8">
<title>Test for bug 1639328</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" href="/tests/SimpleTest/test.css">
<style>
  /* To ensure that they're all in the viewport when displayed */
  iframe {
    width: 10px;
    height: 10px;
  }
  iframe[id^=zero-size] {
    border: none;
    width: 0;
    height: 0;
  }
</style>

<iframe id="http" src="https://example.com/tests/dom/base/test/file_bug1639328.html"></iframe>
<iframe id="https" src="https://example.com/tests/dom/base/test/file_bug1639328.html"></iframe>
<iframe id="same-origin" src="file_bug1639328.html"></iframe>
<br>
<iframe id="zero-size-http" src="https://example.com/tests/dom/base/test/file_bug1639328.html"></iframe>
<iframe id="zero-size-https" src="https://example.com/tests/dom/base/test/file_bug1639328.html"></iframe>
<iframe id="zero-size-same-origin" src="file_bug1639328.html"></iframe>
<br>
<iframe id="display-none-http" style="display: none" src="https://example.com/tests/dom/base/test/file_bug1639328.html"></iframe>
<iframe id="display-none-https" style="display: none" src="https://example.com/tests/dom/base/test/file_bug1639328.html"></iframe>
<iframe id="display-none-same-origin" style="display: none" src="file_bug1639328.html"></iframe>
<br>
<iframe id="vis-hidden-http" style="visibility: hidden" src="https://example.com/tests/dom/base/test/file_bug1639328.html"></iframe>
<iframe id="vis-hidden-https" style="visibility: hidden" src="https://example.com/tests/dom/base/test/file_bug1639328.html"></iframe>
<iframe id="vis-hidden-same-origin" style="visibility: hidden" src="file_bug1639328.html"></iframe>
<script>
SimpleTest.waitForExplicitFinish();

function getOneMessage(frame) {
  info(`querying ${frame.src} (${frame.id})`);
  let resolve;
  let promise = new Promise(r => { resolve = r; });
  window.addEventListener("message", function(e) {
    info("got " + JSON.stringify(e.data));
    resolve(e.data);
  }, { once: true });
  frame.contentWindow.postMessage("ping", "*");
  return promise;
}

async function ticks(n) {
  for (let i = 0; i < n; ++i) {
    await new Promise(resolve => requestAnimationFrame(resolve));
  }
}

async function checkFrame(frame, shouldThrottle) {
  let message = null;
  do {
    if (message) {
      await ticks(2);
    }
    message = await getOneMessage(frame);
  } while (message.throttledFrameRequests != shouldThrottle);
  is(message.throttledFrameRequests, shouldThrottle, frame.id);
}

function shouldThrottle(frame) {
  return frame.style.display == "none" || frame.style.visibility == "hidden";
}

onload = async function() {
  await SimpleTest.promiseFocus(window);
  await ticks(2);
  is(SpecialPowers.DOMWindowUtils.effectivelyThrottlesFrameRequests, false, "Should not be throttling main page");
  for (let frame of document.querySelectorAll("iframe")) {
    let originalShouldThrottle = shouldThrottle(frame);
    await checkFrame(frame, originalShouldThrottle);
    for (let prop of ["display", "visibility"]) {
      info(`Switching ${prop} of ${frame.id}`);
      let orig = frame.style[prop];
      let throttledValue = prop == "display" ? "none" : "hidden";
      frame.style[prop] = orig == throttledValue ? "" : throttledValue;
      if (orig != throttledValue) {
        is(shouldThrottle(frame), true, `Should throttle for ${prop}: ${throttledValue}`);
      }
      await checkFrame(frame, shouldThrottle(frame));
      info(`Switching ${prop} back for ${frame.id}`);
      frame.style[prop] = orig;
      await checkFrame(frame, originalShouldThrottle);
    }
  }

  SimpleTest.finish();
};
</script>

Messung V0.5

¤ Dauer der Verarbeitung: 0.22 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

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Bemerkung:

Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.