/* 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";

const TEST_PAGE =
  "http://mochi.test:8888/browser/browser/components/customizableui/test/support/test_967000_charEncoding_page.html";

add_task(async function() {
  info("Check Character Encoding panel functionality");

  // add the Character Encoding button to the panel
  CustomizableUI.addWidgetToArea(
    "characterencoding-button",
    CustomizableUI.AREA_FIXED_OVERFLOW_PANEL
  );

  await waitForOverflowButtonShown();

  let newTab = await BrowserTestUtils.openNewForegroundTab(
    gBrowser,
    TEST_PAGE,
    true,
    true
  );

  await document.getElementById("nav-bar").overflowable.show();
  let charEncodingButton = document.getElementById("characterencoding-button");
  charEncodingButton.click();
  let characterEncodingView = document.getElementById(
    "PanelUI-characterEncodingView"
  );
  let subviewShownPromise = subviewShown(characterEncodingView);
  await subviewShownPromise;

  let checkedButtons = characterEncodingView.querySelectorAll(
    "toolbarbutton[checked='true']"
  );
  let initialEncoding = checkedButtons[0];
  is(
    initialEncoding.getAttribute("label"),
    "Western",
    "The western encoding is initially selected"
  );

  // change the encoding
  let encodings = characterEncodingView.querySelectorAll(
    "toolbarbutton:not(.subviewbutton-back)"
  );
  let newEncoding = encodings[1].hasAttribute("checked")
    ? encodings[2]
    : encodings[1];
  let browserStopPromise = BrowserTestUtils.browserStopped(gBrowser, TEST_PAGE);
  newEncoding.click();
  await browserStopPromise;
  is(
    gBrowser.selectedBrowser.characterSet,
    "UTF-8",
    "The encoding should be changed to UTF-8"
  );
  ok(
    !gBrowser.selectedBrowser.mayEnableCharacterEncodingMenu,
    "The encoding menu should be disabled"
  );

  // check that the new encodng is applied
  await document.getElementById("nav-bar").overflowable.show();
  charEncodingButton.click();
  checkedButtons = characterEncodingView.querySelectorAll(
    "toolbarbutton[checked='true']"
  );
  let selectedEncodingName = checkedButtons[0].getAttribute("label");
  ok(
    selectedEncodingName == "Unicode",
    "The encoding was changed to " + selectedEncodingName
  );

  CustomizableUI.removeWidgetFromArea("characterencoding-button");
  CustomizableUI.addWidgetToArea(
    "characterencoding-button",
    CustomizableUI.AREA_FIXED_OVERFLOW_PANEL
  );
  await waitForOverflowButtonShown();
  await document.getElementById("nav-bar").overflowable.show();
  charEncodingButton = document.getElementById("characterencoding-button");

  // check the encoding menu again
  is(
    charEncodingButton.getAttribute("disabled"),
    "true",
    "We should disable the encoding menu"
  );

  BrowserTestUtils.removeTab(newTab);
});

add_task(async function asyncCleanup() {
  // reset the panel to the default state
  await resetCustomization();
  ok(CustomizableUI.inDefaultState, "The UI is in default state again.");
});