/* 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";

// Checks for the AccessibleActor events

add_task(async function () {

  let {client, walker, accessibility} =

    await initAccessibilityFrontForUrl(MAIN_DOMAIN + "doc_accessibility.html");

  let a11yWalker = await accessibility.getWalker();

  await accessibility.enable();

  let rootNode = await walker.getRootNode();

  let a11yDoc = await a11yWalker.getAccessibleFor(rootNode);

  let buttonNode = await walker.querySelector(walker.rootNode, "#button");

  let accessibleFront = await a11yWalker.getAccessibleFor(buttonNode);

  let sliderNode = await walker.querySelector(walker.rootNode, "#slider");

  let accessibleSliderFront = await a11yWalker.getAccessibleFor(sliderNode);

  let browser = gBrowser.selectedBrowser;

  checkA11yFront(accessibleFront, {

    name: "Accessible Button",

    role: "pushbutton",

    value: "",

    description: "Accessibility Test",

    help: "",

    keyboardShortcut: "",

    childCount: 1,

    domNodeType: 1,

    indexInParent: 1,

    states: ["focusable", "selectable text", "opaque", "enabled", "sensitive"],

    actions: [ "Press" ],

    attributes: {

      "margin-top": "0px",

      display: "inline-block",

      "text-align": "center",

      "text-indent": "0px",

      "margin-left": "0px",

      tag: "button",

      "margin-right": "0px",

      id: "button",

      "margin-bottom": "0px"

    }

  });

  info("Name change event");

  await emitA11yEvent(accessibleFront, "name-change",

    (name, parent) => {

      checkA11yFront(accessibleFront, { name: "Renamed" });

      checkA11yFront(parent, { }, a11yDoc);

    }, () => ContentTask.spawn(browser, null, () =>

      content.document.getElementById("button").setAttribute(

        "aria-label", "Renamed")));

  info("Description change event");

  await emitA11yEvent(accessibleFront, "description-change",

    () => checkA11yFront(accessibleFront, { description: "" }),

    () => ContentTask.spawn(browser, null, () =>

      content.document.getElementById("button").removeAttribute("aria-describedby")));

  info("State change event");

  let expectedStates = ["unavailable", "selectable text", "opaque"];

  await emitA11yEvent(accessibleFront, "states-change",

    newStates => {

      checkA11yFront(accessibleFront, { states: expectedStates });

      SimpleTest.isDeeply(newStates, expectedStates, "States are updated");

    }, () => ContentTask.spawn(browser, null, () =>

      content.document.getElementById("button").setAttribute("disabled", true)));

  info("Attributes change event");

  await emitA11yEvent(accessibleFront, "attributes-change",

    newAttrs => {

      checkA11yFront(accessibleFront, { attributes: {

        "container-live": "polite",

        display: "inline-block",

        "event-from-input": "false",

        "explicit-name": "true",

        id: "button",

        live: "polite",

        "margin-bottom": "0px",

        "margin-left": "0px",

        "margin-right": "0px",

        "margin-top": "0px",

        tag: "button",

        "text-align": "center",

        "text-indent": "0px"

      }});

      is(newAttrs.live, "polite", "Attributes are updated");

    }, () => ContentTask.spawn(browser, null, () =>

      content.document.getElementById("button").setAttribute("aria-live", "polite")));

  info("Value change event");

  checkA11yFront(accessibleSliderFront, { value: "5" });

  await emitA11yEvent(accessibleSliderFront, "value-change",

    () => checkA11yFront(accessibleSliderFront, { value: "6" }),

    () => ContentTask.spawn(browser, null, () =>

      content.document.getElementById("slider").setAttribute("aria-valuenow", "6")));

  info("Reorder event");

  is(accessibleSliderFront.childCount, 1, "Slider has only 1 child");

  let [firstChild, ] = await accessibleSliderFront.children();

  is(firstChild.indexInParent, 0, "Slider's first child has correct index in parent");

  await emitA11yEvent(accessibleSliderFront, "reorder",

    childCount => {

      is(childCount, 2, "Child count is updated");

      is(accessibleSliderFront.childCount, 2, "Child count is updated");

      is(firstChild.indexInParent, 1,

        "Slider's first child has an updated index in parent");

    }, () => ContentTask.spawn(browser, null, () => {

      let doc = content.document;

      let slider = doc.getElementById("slider");

      let button = doc.createElement("button");

      button.innerText = "Slider button";

      content.document.getElementById("slider").insertBefore(button, slider.firstChild);

    }));

  await emitA11yEvent(firstChild, "index-in-parent-change", indexInParent =>

    is(indexInParent, 0, "Slider's first child has an updated index in parent"), () =>

    ContentTask.spawn(browser, null, () =>

      content.document.getElementById("slider").firstChild.remove()));

  await accessibility.disable();

  await waitForA11yShutdown();

  await client.close();

  gBrowser.removeCurrentTab();

});