Quelle event-global.html Sprache: HTML

products/sources/formale Sprachen/C/Firefox/testing/web-platform/tests/dom/events/event-global.html

<!DOCTYPE html>
<title>window.event tests</title>
<link rel="author" title="Mike Taylor" href="mailto:miketaylr@gmail.com">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id=log></div>
<script>
setup({allow_uncaught_exception: true});

test(t => {
  assert_own_property(window, "event");
  assert_equals(window.event, undefined);
}, "event exists on window, which is initially set to undefined");

async_test(t => {
  let target = document.createElement("div");
  assert_equals(window.event, undefined, "undefined before dispatch");

  let clickEvent = new Event("click");
  target.addEventListener("click", t.step_func_done(e => {
    assert_equals(window.event, clickEvent, "window.event set to current event during dispatch");
  }));

  target.dispatchEvent(clickEvent);
  assert_equals(window.event, undefined, "undefined after dispatch");
}, "window.event is only defined during dispatch");

async_test(t => {
  let parent = document.createElement("div");
  let root = parent.attachShadow({mode: "closed"});
  let span = document.createElement("span");
  root.appendChild(span);

  span.addEventListener("test", t.step_func(e => {
    assert_equals(window.event, undefined);
    assert_not_equals(window.event, e);
  }));

  parent.addEventListener("test", t.step_func_done(e => {
    assert_equals(window.event, e);
    assert_not_equals(window.event, undefined);
  }));

  parent.dispatchEvent(new Event("test", {composed: true}));
}, "window.event is undefined if the target is in a shadow tree (event dispatched outside shadow tree)");

async_test(t => {
  let parent = document.createElement("div");
  let root = parent.attachShadow({mode: "closed"});
  let span = document.createElement("span");
  root.appendChild(span);
  let shadowNode = root.firstElementChild;

  shadowNode.addEventListener("test", t.step_func((e) => {
    assert_not_equals(window.event, e);
    assert_equals(window.event, undefined);
  }));

  parent.addEventListener("test", t.step_func_done(e => {
    assert_equals(window.event, e);
    assert_not_equals(window.event, undefined);
  }));

  shadowNode.dispatchEvent(new Event("test", {composed: true, bubbles: true}));
}, "window.event is undefined if the target is in a shadow tree (event dispatched inside shadow tree)");

async_test(t => {
  let parent = document.createElement("div");
  let root = parent.attachShadow({mode: "open"});
  document.body.append(parent)
  let span = document.createElement("span");
  root.append(span);
  let shadowNode = root.firstElementChild;

  shadowNode.addEventListener("error", t.step_func(e => {
    assert_not_equals(window.event, e);
    assert_equals(window.event, undefined);
  }));

  let windowOnErrorCalled = false;
  window.onerror = t.step_func_done(() => {
    windowOnErrorCalled = true;
    assert_equals(typeof window.event, "object");
    assert_equals(window.event.type, "error");
  });

  shadowNode.dispatchEvent(new ErrorEvent("error", {composed: true, bubbles: true}));
  assert_true(windowOnErrorCalled);
}, "window.event is undefined inside window.onerror if the target is in a shadow tree (ErrorEvent dispatched inside shadow tree)");

async_test(t => {
  let target1 = document.createElement("div");
  let target2 = document.createElement("div");

  target2.addEventListener("dude", t.step_func(() => {
    assert_equals(window.event.type, "dude");
  }));

  target1.addEventListener("cool", t.step_func_done(() => {
    assert_equals(window.event.type, "cool", "got expected event from global event during dispatch");
    target2.dispatchEvent(new Event("dude"));
    assert_equals(window.event.type, "cool", "got expected event from global event after handling a different event handler callback");
  }));

  target1.dispatchEvent(new Event("cool"));
}, "window.event is set to the current event during dispatch");

async_test(t => {
  let target = document.createElement("div");

  target.addEventListener("click", t.step_func_done(e => {
    assert_equals(e, window.event);
  }));

  target.dispatchEvent(new Event("click"));
}, "window.event is set to the current event, which is the event passed to dispatch");

async_test(t => {
  let target = new XMLHttpRequest();

  target.onload = t.step_func_done(e => {
    assert_equals(e, window.event);
  });

  target.dispatchEvent(new Event("load"));
}, "window.event is set to the current event, which is the event passed to dispatch (2)");
</script>

Messung V0.5

¤ Dauer der Verarbeitung: 0.12 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.