/* 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";

/**
 * Test implicit selected state.
 */
addAccessibleTask(
  `
<div role="tablist">
  <div id="noSel" role="tab" tabindex="0">noSel</div>
  <div id="noSel2" role="tab" tabindex="0">noSel2</div>
</div>
<div role="listbox" aria-multiselectable="true">
  <div id="multiNoSel" role="option" tabindex="0">multiNoSel</div>
</div>
<div role="grid">
  <div role="row">
    <div id="gridcell" role="gridcell" tabindex="0">gridcell</div>
  </div>
</div>
  `,
  async function (browser, docAcc) {
    const noSel = findAccessibleChildByID(docAcc, "noSel");
    testStates(noSel, 0, 0, STATE_FOCUSED | STATE_SELECTED, 0);
    info("Focusing noSel");
    let focused = waitForEvent(EVENT_FOCUS, noSel);
    noSel.takeFocus();
    await focused;
    testStates(noSel, STATE_FOCUSED | STATE_SELECTED, 0, 0, 0);

    const noSel2 = findAccessibleChildByID(docAcc, "noSel2");
    testStates(noSel2, 0, 0, STATE_FOCUSED | STATE_SELECTED, 0);
    info("Focusing noSel2");
    focused = waitForEvent(EVENT_FOCUS, noSel2);
    noSel2.takeFocus();
    await focused;
    testStates(noSel2, STATE_FOCUSED | STATE_SELECTED, 0, 0, 0);

    const multiNoSel = findAccessibleChildByID(docAcc, "multiNoSel");
    testStates(multiNoSel, 0, 0, STATE_FOCUSED | STATE_SELECTED, 0);
    info("Focusing multiNoSel");
    focused = waitForEvent(EVENT_FOCUS, multiNoSel);
    multiNoSel.takeFocus();
    await focused;
    testStates(multiNoSel, STATE_FOCUSED, 0, STATE_SELECTED, 0);

    const gridcell = findAccessibleChildByID(docAcc, "gridcell");
    testStates(gridcell, 0, 0, STATE_FOCUSED | STATE_SELECTED, 0);
    info("Focusing gridcell");
    focused = waitForEvent(EVENT_FOCUS, gridcell);
    gridcell.takeFocus();
    await focused;
    testStates(gridcell, STATE_FOCUSED, 0, STATE_SELECTED, 0);
  },
  { topLevel: true, iframe: true, remoteIframe: true, chrome: true }
);

// Ensure explicit selection gets priority over implicit selection
addAccessibleTask(
  `
  <div role="listbox" id="listbox">
    <div role="option" aria-selected="true" id="o1">a</div>
    <div role="option" tabindex="0" id="o2">b</div>
  </div>
  `,
  async function testExplicitSelection(browser, accDoc) {
    const o1 = findAccessibleChildByID(accDoc, "o1");
    const o2 = findAccessibleChildByID(accDoc, "o2");

    await untilCacheOk(() => {
      const [states] = getStates(o1);
      return (states & STATE_SELECTED) != 0;
    }, "option 1 should be selected");
    await untilCacheOk(() => {
      const [states] = getStates(o2);
      return (states & STATE_SELECTED) == 0;
    }, "option 2 should NOT be selected");

    // Focus the second option.
    const e = waitForEvents({
      expected: [[EVENT_FOCUS, "o2"]],
      unexpected: [[EVENT_SELECTION, "o2"]],
    });
    await invokeContentTask(browser, [], () => {
      content.document.getElementById("o2").focus();
    });
    await e;

    await untilCacheOk(() => {
      const [states] = getStates(o1);
      return (states & STATE_SELECTED) != 0;
    }, "option 1 should be selected");
    await untilCacheOk(() => {
      const [states] = getStates(o2);
      return (states & STATE_SELECTED) == 0 && (states & STATE_FOCUSED) != 0;
    }, "option 2 should NOT be selected but should be focused");
  },
  { chrome: true, iframe: true, remoteIframe: true }
);