Quellcode-Bibliothek test_descrchange.html Sprache: HTML

products/sources/formale Sprachen/C/Firefox/accessible/tests/mochitest/events/test_descrchange.html

<html>

<head>
  <title>Accessible description change event testing</title>

  <link rel="stylesheet" type="text/css"
        href="chrome://mochikit/content/tests/SimpleTest/test.css" />

  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
  <script src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"></script>

  <script type="application/javascript"
          src="../common.js"></script>
  <script type="application/javascript"
          src="../events.js"></script>
  <script type="application/javascript"
          src="../role.js"></script>
  <script type="application/javascript"
          src="../states.js"></script>

  <script type="application/javascript">
    let PromEvents = {};
    Services.scriptloader.loadSubScript(
      "chrome://mochitests/content/a11y/accessible/tests/mochitest/promisified-events.js",
      PromEvents);

    // //////////////////////////////////////////////////////////////////////////
    // Invokers

    function setAttr(aID, aAttr, aValue, aChecker) {
      this.eventSeq = [ aChecker ];
      this.invoke = function setAttr_invoke() {
        getNode(aID).setAttribute(aAttr, aValue);
      };

      this.getID = function setAttr_getID() {
        return "set attr '" + aAttr + "', value '" + aValue + "'";
      };
    }

    // //////////////////////////////////////////////////////////////////////////
    // Do tests

    // gA11yEventDumpToConsole = true; // debuggin

    var gQueue = null;
    async function doTests() {
      gQueue = new eventQueue();
      // Later tests use await.
      let queueFinished = new Promise(resolve => {
        gQueue.onFinish = function() {
          resolve();
          return DO_NOT_FINISH_TEST;
        };
      });

      gQueue.push(new setAttr("tst1", "aria-describedby", "display",
                              new invokerChecker(EVENT_DESCRIPTION_CHANGE, "tst1")));
      gQueue.push(new setAttr("tst1", "title", "title",
                              new unexpectedInvokerChecker(EVENT_DESCRIPTION_CHANGE, "tst1")));

      // A title has lower priority over text content. There should be no name change event.
      gQueue.push(new setAttr("tst2", "title", "title",
                              new unexpectedInvokerChecker(EVENT_NAME_CHANGE, "tst2")));

      gQueue.invoke();
      await queueFinished;
      // Tests beyond this point use await rather than eventQueue.

      const describedBy = getNode("describedBy");
      const description = getNode("description");
      let descChanged = PromEvents.waitForEvent(
        EVENT_DESCRIPTION_CHANGE,
        describedBy
      );
      info("Changing text of aria-describedby target");
      description.textContent = "d2";
      await descChanged;
      descChanged = PromEvents.waitForEvent(
        EVENT_DESCRIPTION_CHANGE,
        describedBy
      );
      info("Adding node to aria-describedby target");
      description.innerHTML = '

';
      await descChanged;
      descChanged = PromEvents.waitForEvent(
        EVENT_DESCRIPTION_CHANGE,
        describedBy
      );
      info("Changing text of aria-describedby target's child");
      getNode("descriptionChild").textContent = "d4";
      await descChanged;

      const lateDescribedBy = getNode("lateDescribedBy");
      descChanged = PromEvents.waitForEvent(
        EVENT_DESCRIPTION_CHANGE,
        lateDescribedBy
      );
      info("Setting aria-describedby");
      lateDescribedBy.setAttribute("aria-describedby", "lateDescription");
      await descChanged;
      descChanged = PromEvents.waitForEvent(
        EVENT_DESCRIPTION_CHANGE,
        lateDescribedBy
      );
      info("Changing text of late aria-describedby target's child");
      getNode("lateDescriptionChild").textContent = "d2";
      await descChanged;

      SimpleTest.finish();
    }

    SimpleTest.waitForExplicitFinish();
    addA11yLoadEvent(doTests);
  </script>
</head>

<body>

  <a target="_blank"
     href="https://bugzilla.mozilla.org/show_bug.cgi?id=991969"
     title="Event not fired when description changes">
    Bug 991969
  </a>

  <p id="display"></p>
  <div id="content" style="display: none"></div>
  <pre id="test">
  </pre>

  <button id="tst1">btn1</button>
  <button id="tst2">btn2</button>

  <div id="describedBy" aria-describedby="description"></div>
  <div id="description">d1</div>

  <div id="lateDescribedBy"></div>
  <div id="lateDescription"><p id="lateDescriptionChild">d1</p></div>

  <div id="eventdump"></div>
</body>
</html>

Messung V0.5

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