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path: root/accessible/tests/browser/fission/browser_hidden_iframe.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";

/* import-globals-from ../../mochitest/states.js */
/* import-globals-from ../../mochitest/role.js */
loadScripts({ name: "states.js", dir: MOCHITESTS_DIR });
loadScripts({ name: "role.js", dir: MOCHITESTS_DIR });

addAccessibleTask(
  `<input id="textbox" value="hello"/>`,
  async function(browser, contentDocAcc) {
    info(
      "Check that the IFRAME and the IFRAME document are not accessible initially."
    );
    let iframeAcc = findAccessibleChildByID(contentDocAcc, DEFAULT_IFRAME_ID);
    let iframeDocAcc = findAccessibleChildByID(
      contentDocAcc,
      DEFAULT_IFRAME_DOC_BODY_ID
    );
    ok(!iframeAcc, "IFRAME is hidden and should not be accessible");
    ok(!iframeDocAcc, "IFRAME document is hidden and should be accessible");

    info(
      "Show the IFRAME and check that it's now available in the accessibility tree."
    );

    const events = [[EVENT_REORDER, contentDocAcc]];
    // Until this event is fired, IFRAME accessible has no children attached.
    events.push([
      EVENT_STATE_CHANGE,
      event => {
        const scEvent = event.QueryInterface(nsIAccessibleStateChangeEvent);
        const id = getAccessibleDOMNodeID(event.accessible);
        return (
          id === DEFAULT_IFRAME_DOC_BODY_ID &&
          scEvent.state === STATE_BUSY &&
          scEvent.isEnabled === false
        );
      },
    ]);

    const onEvents = waitForEvents(events);
    await SpecialPowers.spawn(browser, [DEFAULT_IFRAME_ID], contentId => {
      content.document.getElementById(contentId).style.display = "";
    });
    await onEvents;

    iframeAcc = findAccessibleChildByID(contentDocAcc, DEFAULT_IFRAME_ID);
    iframeDocAcc = findAccessibleChildByID(
      contentDocAcc,
      DEFAULT_IFRAME_DOC_BODY_ID
    );

    ok(!isDefunct(iframeAcc), "IFRAME should be accessible");
    is(iframeAcc.childCount, 1, "IFRAME accessible should have a single child");
    ok(iframeDocAcc, "IFRAME document exists");
    ok(!isDefunct(iframeDocAcc), "IFRAME document should be accessible");
    is(
      iframeAcc.firstChild,
      iframeDocAcc,
      "An accessible for a IFRAME document is the child of the IFRAME accessible"
    );
    is(
      iframeDocAcc.parent,
      iframeAcc,
      "IFRAME document's parent matches the IFRAME."
    );
  },
  {
    topLevel: false,
    iframe: true,
    remoteIframe: true,
    iframeAttrs: {
      style: "display: none;",
    },
    skipFissionDocLoad: true,
  }
);