/* 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";

var navbar = document.getElementById(CustomizableUI.AREA_NAVBAR);

registerCleanupFunction(async function asyncCleanup() {
  await resetCustomization();
});

// Resize to a small window, resize back, shouldn't affect default state.
add_task(async function() {
  let originalWindowWidth = window.outerWidth;
  ok(!navbar.hasAttribute("overflowing"), "Should start with a non-overflowing toolbar.");
  ok(CustomizableUI.inDefaultState, "Should start in default state.");
  let navbarTarget = CustomizableUI.getCustomizationTarget(navbar);
  let oldChildCount = navbarTarget.childElementCount;
  window.resizeTo(kForceOverflowWidthPx, window.outerHeight);
  await waitForCondition(() => navbar.hasAttribute("overflowing"));
  ok(navbar.hasAttribute("overflowing"), "Should have an overflowing toolbar.");
  ok(CustomizableUI.inDefaultState, "Should still be in default state when overflowing.");
  ok(navbarTarget.childElementCount < oldChildCount, "Should have fewer children.");
  window.resizeTo(originalWindowWidth, window.outerHeight);
  await waitForCondition(() => !navbar.hasAttribute("overflowing"));
  ok(!navbar.hasAttribute("overflowing"), "Should no longer have an overflowing toolbar.");
  ok(CustomizableUI.inDefaultState, "Should still be in default state now we're no longer overflowing.");

  // Verify actual physical placements match those of the placement array:
  let placementCounter = 0;
  let placements = CustomizableUI.getWidgetIdsInArea(CustomizableUI.AREA_NAVBAR);
  for (let node of navbarTarget.children) {
    if (node.getAttribute("skipintoolbarset") == "true") {
      continue;
    }
    is(placements[placementCounter++], node.id, "Nodes should match after overflow");
  }
  is(placements.length, placementCounter, "Should have as many nodes as expected");
  is(navbarTarget.childElementCount, oldChildCount, "Number of nodes should match");
});

// Enter and exit customization mode, check that default state is correct.
add_task(async function() {
  ok(CustomizableUI.inDefaultState, "Should start in default state.");
  await startCustomizing();
  ok(CustomizableUI.inDefaultState, "Should be in default state in customization mode.");
  await endCustomizing();
  ok(CustomizableUI.inDefaultState, "Should be in default state after customization mode.");
});