Quelle test_bug1581192.html Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/dom/events/test/test_bug1581192.html

<!DOCTYPE HTML>
<html>
<head>
  <meta charset="utf-8">
  <title>Redispatching test with PresShell</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <script src="/tests/SimpleTest/EventUtils.js"></script>
  <link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<p id="display"></p>
<div id="content" style="display: none"></div>
<pre id="test"></pre>
<button>click me!</button>
<script>
SimpleTest.waitForExplicitFinish();
SimpleTest.waitForFocus(async () => {
  /**
   * We have same tests in Event-dispatch-redispatch.html of WPT.  However,
   * it does not send the event to the main process.  Therefore the reported
   * crash couldn't reproduce.
   */
  await SpecialPowers.pushPrefEnv({set: [["test.events.async.enabled", true]]});
  let button = document.querySelector("button");
  try {
    await promiseElementReadyForUserInput(button, window, info);
  } catch (ex) {
    ok(false, ex.message);
    SimpleTest.finish();
    return;
  }
  let mouseupEvent;
  button.addEventListener("mouseup", aNativeMouseUpEvent => {
    ok(aNativeMouseUpEvent.isTrusted,"First mouseup event should be trusted");
    mouseupEvent = aNativeMouseUpEvent;
    try {
      button.dispatchEvent(aNativeMouseUpEvent);
      ok(false, "Dispatching trusted mouseup event which is being dispatched should throw an exception");
    } catch (e) {
      is(e.name, "InvalidStateError", "Trusted mouseup event which is being dispatched shouldn't be able to be dispatched");
    }
  }, {once: true});

  button.addEventListener("click", aNativeClickEvent => {
    ok(aNativeClickEvent.isTrusted, "First click event should be trusted");
    try {
      button.dispatchEvent(aNativeClickEvent);
      ok(false, "Dispatching trusted click event which is being dispatched should throw an exception");
    } catch (e) {
      is(e.name, "InvalidStateError", "Trusted click event which is being dispatched shouldn't be able to be dispatched");
    }
    let mouseupEventFired = false;
    button.addEventListener("mouseup", aDispatchedMouseUpEvent => {
      ok(!aDispatchedMouseUpEvent.isTrusted, "Redispatched mouseup event shouldn't be trusted");
      mouseupEventFired = true;
    }, {once: true});
    function onClick(aNonDispatchedClickEvent) {
      ok(false, "Redispatched mouseup event shouldn't cause dispatching another click event");
    }
    button.addEventListener("click", onClick);
    ok(mouseupEvent.isTrusted, "Received mouseup event should be trusted before redispatching from click event listener");
    button.dispatchEvent(mouseupEvent);
    ok(!mouseupEvent.isTrusted, "Received mouseup event shouldn't be trusted after redispatching");
    ok(mouseupEventFired, "Redispatched mouseup event should've been received");
    button.removeEventListener("click", onClick);
    ok(aNativeClickEvent.isTrusted, "First click event should still be trusted even after redispatching mouseup event");
    SimpleTest.finish();
  }, {once: true});
  synthesizeMouseAtCenter(button, {});
});
</script>
</body>
</html>

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