"use strict";

Cu.import("resource://gre/modules/AppMenuNotifications.jsm");

function waitForDocshellActivated() {
  return ContentTask.spawn(gBrowser.selectedBrowser, null, async function() {
    // Setting docshell activated/deactivated will trigger visibility state
    // changes to relevant state ("visible" or "hidden"). AFAIK, there is no
    // such event notifying docshell is being activated, so I use
    // "visibilitychange" event rather than polling the docShell.isActive.
    await ContentTaskUtils.waitForEvent(content.document, "visibilitychange",
                                        true /* capture */, (aEvent) => {
      return content.document.docShell.isActive;
    });
  });
}

function waitForFullscreen() {
  return Promise.all([
    BrowserTestUtils.waitForEvent(window, "fullscreen"),
    // In the platforms that support reporting occlusion state (e.g. Mac),
    // enter/exit fullscreen mode will trigger docshell being set to non-activate
    // and then set to activate back again. For those platforms, we should wait
    // until the docshell has been activated again before starting next test,
    // otherwise, the fullscreen request might be denied.
    (Services.appinfo.OS === "Darwin") ? waitForDocshellActivated() : Promise.resolve()
  ]);
}

add_task(async function testFullscreen() {
  if (Services.appinfo.OS !== "Darwin") {
    await SpecialPowers.pushPrefEnv({
      set: [
        ["browser.fullscreen.autohide", false],
      ]});
  }

  is(PanelUI.notificationPanel.state, "closed", "update-manual doorhanger is closed.");
  let mainActionCalled = false;
  let mainAction = {
    callback: () => { mainActionCalled = true; }
  };
  AppMenuNotifications.showNotification("update-manual", mainAction);
  await BrowserTestUtils.waitForEvent(PanelUI.notificationPanel, "popupshown");

  isnot(PanelUI.notificationPanel.state, "closed", "update-manual doorhanger is showing.");
  let notifications = [...PanelUI.notificationPanel.children].filter(n => !n.hidden);
  is(notifications.length, 1, "PanelUI doorhanger is only displaying one notification.");
  let doorhanger = notifications[0];
  is(doorhanger.id, "appMenu-update-manual-notification", "PanelUI is displaying the update-manual notification.");

  let fullscreenPromise = waitForFullscreen();
  EventUtils.synthesizeKey("VK_F11", {});
  await fullscreenPromise;
  isnot(PanelUI.notificationPanel.state, "closed", "update-manual doorhanger is still showing after entering fullscreen.");

  let popuphiddenPromise = BrowserTestUtils.waitForEvent(PanelUI.notificationPanel, "popuphidden");
  await ContentTask.spawn(gBrowser.selectedBrowser, {}, async () => {
    content.document.documentElement.requestFullscreen();
  });
  await popuphiddenPromise;
  await new Promise(executeSoon);
  is(PanelUI.notificationPanel.state, "closed", "update-manual doorhanger is hidden after entering DOM fullscreen.");

  let popupshownPromise = BrowserTestUtils.waitForEvent(PanelUI.notificationPanel, "popupshown");
  await ContentTask.spawn(gBrowser.selectedBrowser, {}, async () => {
    content.document.exitFullscreen();
  });
  await popupshownPromise;
  await new Promise(executeSoon);
  isnot(PanelUI.notificationPanel.state, "closed", "update-manual doorhanger is shown after exiting DOM fullscreen.");
  isnot(PanelUI.menuButton.getAttribute("badge-status"), "update-manual", "Badge is not displaying on PanelUI button.");

  let mainActionButton = document.getAnonymousElementByAttribute(doorhanger, "anonid", "button");
  mainActionButton.click();
  ok(mainActionCalled, "Main action callback was called");
  is(PanelUI.notificationPanel.state, "closed", "update-manual doorhanger is closed.");
  is(PanelUI.menuButton.hasAttribute("badge-status"), false, "Should not have a badge status");

  fullscreenPromise = BrowserTestUtils.waitForEvent(window, "fullscreen");
  EventUtils.synthesizeKey("VK_F11", {});
  await fullscreenPromise;
});
