browser_test_dialog_modal.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(

  `<dialog id="modal">I am a modal dialog</dialog>`,

  async function testModal(browser, _docAcc) {

    info("Showing modal");

    let shown = waitForEvent(EVENT_SHOW, "modal");

    await invokeContentTask(browser, [], () => {

      content.document.getElementById("modal").showModal();

});

    const modal = (await shown).accessible;

    testStates(modal, 0, EXT_STATE_MODAL);

},

  { chrome: true, topLevel: true }

);

addAccessibleTask(

  `<dialog id="nonmodal" open>I am a non-modal dialog</dialog>`,

  async function testNonModal(browser, docAcc) {

    const nonmodal = findAccessibleChildByID(docAcc, "nonmodal");

    testStates(nonmodal, 0, 0, 0, EXT_STATE_MODAL);

},

  { chrome: true, topLevel: true }

);