"use strict";

// This test makes sure that when a page offers many search engines, the search
// popup shows a submenu that lists them instead of showing them in the popup
// itself.

const searchPopup = document.getElementById("PopupSearchAutoComplete");
const oneOffsContainer =
  document.getAnonymousElementByAttribute(searchPopup, "anonid",
                                          "search-one-off-buttons");

add_task(async function test() {
  await SpecialPowers.pushPrefEnv({ set: [
    ["browser.search.widget.inNavBar", true],
  ]});

  let searchbar = document.getElementById("searchbar");

  let rootDir = getRootDirectory(gTestPath);
  let url = rootDir + "tooManyEnginesOffered.html";
  await BrowserTestUtils.openNewForegroundTab(gBrowser, url);

  // Open the search popup.
  let promise = promiseEvent(searchPopup, "popupshown");
  info("Opening search panel");
  searchbar.focus();
  EventUtils.synthesizeKey("KEY_ArrowDown");
  await promise;

  // Make sure it has only one add-engine menu button item.
  let items = getOpenSearchItems();
  Assert.equal(items.length, 1, "A single button");
  let menuButton = items[0];
  Assert.equal(menuButton.type, "menu", "A menu button");

  // Mouse over the menu button to open it.
  let buttonPopup = menuButton.firstChild;
  promise = promiseEvent(buttonPopup, "popupshown");
  EventUtils.synthesizeMouse(menuButton, 5, 5, { type: "mousemove" });
  await promise;

  Assert.ok(menuButton.open, "Submenu should be open");

  // Check the engines inside the submenu.
  Assert.equal(buttonPopup.childNodes.length, 6, "Expected number of engines");
  for (let i = 0; i < buttonPopup.childNodes.length; i++) {
    let item = buttonPopup.childNodes[i];
    Assert.equal(item.getAttribute("title"), "engine" + (i + 1),
                 "Expected engine title");
  }

  // Mouse out of the menu button to close it.
  promise = promiseEvent(buttonPopup, "popuphidden");
  EventUtils.synthesizeMouse(searchbar, 5, 5, { type: "mousemove" });
  await promise;

  Assert.ok(!menuButton.open, "Submenu should be closed");

  // Key up until the menu button is selected.
  for (let button = null;
       button != menuButton;
       button = searchbar.textbox.popup.oneOffButtons.selectedButton) {
    EventUtils.synthesizeKey("KEY_ArrowUp");
  }

  // Press the Right arrow key.  The submenu should open.
  promise = promiseEvent(buttonPopup, "popupshown");
  EventUtils.synthesizeKey("KEY_ArrowRight");
  await promise;

  Assert.ok(menuButton.open, "Submenu should be open");

  // Press the Esc key.  The submenu should close.
  promise = promiseEvent(buttonPopup, "popuphidden");
  EventUtils.synthesizeKey("KEY_Escape");
  await promise;

  Assert.ok(!menuButton.open, "Submenu should be closed");

  gBrowser.removeCurrentTab();
});

function getOpenSearchItems() {
  let os = [];

  let addEngineList =
    document.getAnonymousElementByAttribute(oneOffsContainer, "anonid",
                                            "add-engines");
  for (let item = addEngineList.firstChild; item; item = item.nextSibling)
    os.push(item);

  return os;
}
