/* 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");
  let characterEncodingView = document.getElementById("PanelUI-characterEncodingView");
  let subviewShownPromise = subviewShown(characterEncodingView);
  charEncodingButton.click();
  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");
  let newEncoding = encodings[0].hasAttribute("checked") ? encodings[1] : encodings[0];
  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");

  await 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.");
});
