browser_events_announcement.js

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/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

"use strict";

addAccessibleTask(

  `<p id="p">abc</p>`,

  async function (browser, accDoc) {

    let acc = findAccessibleChildByID(accDoc, "p");

    let onAnnounce = waitForEvent(EVENT_ANNOUNCEMENT, acc);

    acc.announce("please", nsIAccessibleAnnouncementEvent.POLITE);

    let evt = await onAnnounce;

    evt.QueryInterface(nsIAccessibleAnnouncementEvent);

    is(evt.announcement, "please", "announcement matches.");

    is(evt.priority, nsIAccessibleAnnouncementEvent.POLITE, "priority matches");

    onAnnounce = waitForEvent(EVENT_ANNOUNCEMENT, acc);

    acc.announce("do it", nsIAccessibleAnnouncementEvent.ASSERTIVE);

    evt = await onAnnounce;

    evt.QueryInterface(nsIAccessibleAnnouncementEvent);

    is(evt.announcement, "do it", "announcement matches.");

is(

      evt.priority,

      nsIAccessibleAnnouncementEvent.ASSERTIVE,

      "priority matches"

);

},

  { iframe: true, remoteIframe: true }

);