/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* Any copyright is dedicated to the Public Domain.
   http://creativecommons.org/publicdomain/zero/1.0/ */

"use strict";

const kDownloadAutoHidePref = "browser.download.autohideButton";

registerCleanupFunction(async function() {
  Services.prefs.clearUserPref(kDownloadAutoHidePref);
  if (document.documentElement.hasAttribute("customizing")) {
    await gCustomizeMode.reset();
    await promiseCustomizeEnd();
  } else {
    CustomizableUI.reset();
  }
});

add_task(async function checkStateDuringPrefFlips() {
  ok(Services.prefs.getBoolPref(kDownloadAutoHidePref),
     "Should be autohiding the button by default");
  ok(!DownloadsIndicatorView.hasDownloads,
     "Should be no downloads when starting the test");
  let downloadsButton = document.getElementById("downloads-button");
  ok(downloadsButton.hasAttribute("hidden"),
     "Button should be hidden in the toolbar");
  await gCustomizeMode.addToPanel(downloadsButton);
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button shouldn't be hidden in the panel");
  ok(!Services.prefs.getBoolPref(kDownloadAutoHidePref),
     "Pref got set to false when the user moved the button");
  gCustomizeMode.addToToolbar(downloadsButton);
  ok(!Services.prefs.getBoolPref(kDownloadAutoHidePref),
     "Pref remains false when the user moved the button");
  Services.prefs.setBoolPref(kDownloadAutoHidePref, true);
  ok(downloadsButton.hasAttribute("hidden"),
     "Button should be hidden again in the toolbar " +
     "now that we flipped the pref");
  Services.prefs.setBoolPref(kDownloadAutoHidePref, false);
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button shouldn't be hidden with autohide turned off");
  await gCustomizeMode.addToPanel(downloadsButton);
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button shouldn't be hidden with autohide turned off " +
     "after moving it to the panel");
  gCustomizeMode.addToToolbar(downloadsButton);
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button shouldn't be hidden with autohide turned off " +
     "after moving it back to the toolbar");
  await gCustomizeMode.addToPanel(downloadsButton);
  Services.prefs.setBoolPref(kDownloadAutoHidePref, true);
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button should still not be hidden with autohide turned back on " +
     "because it's in the panel");
  // Use CUI directly instead of the customize mode APIs,
  // to avoid tripping the "automatically turn off autohide" code.
  CustomizableUI.addWidgetToArea("downloads-button", "nav-bar");
  ok(downloadsButton.hasAttribute("hidden"),
     "Button should be hidden again in the toolbar");
  gCustomizeMode.removeFromArea(downloadsButton);
  Services.prefs.setBoolPref(kDownloadAutoHidePref, false);
  // Can't use gCustomizeMode.addToToolbar here because it doesn't work for
  // palette items if the window isn't in customize mode:
  CustomizableUI.addWidgetToArea(downloadsButton.id, CustomizableUI.AREA_NAVBAR);
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button should be unhidden again in the toolbar " +
     "even if the pref was flipped while the button was in the palette");
  Services.prefs.setBoolPref(kDownloadAutoHidePref, true);
});

add_task(async function checkStateInCustomizeMode() {
  ok(Services.prefs.getBoolPref("browser.download.autohideButton"),
     "Should be autohiding the button");
  let downloadsButton = document.getElementById("downloads-button");
  await promiseCustomizeStart();
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button should be shown in customize mode.");
  await promiseCustomizeEnd();
  ok(downloadsButton.hasAttribute("hidden"),
     "Button should be hidden if it's in the toolbar " +
     "after customize mode without any moves.");
  await promiseCustomizeStart();
  await gCustomizeMode.addToPanel(downloadsButton);
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button should be shown in customize mode when moved to the panel");
  gCustomizeMode.addToToolbar(downloadsButton);
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button should be shown in customize mode when moved back to the toolbar");
  gCustomizeMode.removeFromArea(downloadsButton);
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button should be shown in customize mode when in the palette");
  Services.prefs.setBoolPref(kDownloadAutoHidePref, false);
  Services.prefs.setBoolPref(kDownloadAutoHidePref, true);
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button should be shown in customize mode " +
     "even when flipping the autohide pref");
  await gCustomizeMode.addToPanel(downloadsButton);
  await promiseCustomizeEnd();
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button should be shown after customize mode when moved to the panel");
  await promiseCustomizeStart();
  gCustomizeMode.addToToolbar(downloadsButton);
  await promiseCustomizeEnd();
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button should be shown in the toolbar after " +
     "customize mode because we moved it.");
  await promiseCustomizeStart();
  await gCustomizeMode.reset();
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button should be shown in the toolbar in customize mode after a reset.");
  await gCustomizeMode.undoReset();
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button should be shown in the toolbar in customize mode " +
     "when undoing the reset.");
  await gCustomizeMode.addToPanel(downloadsButton);
  await gCustomizeMode.reset();
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button should be shown in the toolbar in customize mode " +
     "after a reset moved it.");
  await gCustomizeMode.undoReset();
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button should be shown in the panel in customize mode " +
     "when undoing the reset.");
  await gCustomizeMode.reset();
  await promiseCustomizeEnd();
});

add_task(async function checkStateInCustomizeModeMultipleWindows() {
  ok(Services.prefs.getBoolPref("browser.download.autohideButton"),
     "Should be autohiding the button");
  let downloadsButton = document.getElementById("downloads-button");
  await promiseCustomizeStart();
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button should be shown in customize mode.");
  let otherWin = await BrowserTestUtils.openNewBrowserWindow();
  let otherDownloadsButton = otherWin.document.getElementById("downloads-button");
  ok(otherDownloadsButton.hasAttribute("hidden"),
     "Button should be hidden in the other window.");

  // Use CUI directly instead of the customize mode APIs,
  // to avoid tripping the "automatically turn off autohide" code.
  CustomizableUI.addWidgetToArea("downloads-button",
                                 CustomizableUI.AREA_FIXED_OVERFLOW_PANEL);
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button should still be shown in customize mode.");
  ok(!otherDownloadsButton.hasAttribute("hidden"),
     "Button should be shown in the other window too because it's in a panel.");

  CustomizableUI.addWidgetToArea("downloads-button", CustomizableUI.AREA_NAVBAR);
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button should still be shown in customize mode.");
  ok(otherDownloadsButton.hasAttribute("hidden"),
     "Button should be hidden again in the other window.");

  Services.prefs.setBoolPref(kDownloadAutoHidePref, false);
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button should be shown in customize mode");
  ok(!otherDownloadsButton.hasAttribute("hidden"),
     "Button should be shown in the other window with the pref flipped");

  Services.prefs.setBoolPref(kDownloadAutoHidePref, true);
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button should be shown in customize mode " +
     "even when flipping the autohide pref");
  ok(otherDownloadsButton.hasAttribute("hidden"),
     "Button should be hidden in the other window with the pref flipped again");

  await gCustomizeMode.addToPanel(downloadsButton);
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button should still be shown in customize mode.");
  ok(!otherDownloadsButton.hasAttribute("hidden"),
     "Button should be shown in the other window too because it's in a panel.");

  gCustomizeMode.removeFromArea(downloadsButton);
  ok(!Services.prefs.getBoolPref(kDownloadAutoHidePref),
     "Autohide pref turned off by moving the button");
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button should still be shown in customize mode.");
  // Don't need to assert in the other window - button is gone there.

  await gCustomizeMode.reset();
  ok(Services.prefs.getBoolPref(kDownloadAutoHidePref),
     "Autohide pref reset by reset()");
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button should still be shown in customize mode.");
  ok(otherDownloadsButton.hasAttribute("hidden"),
     "Button should be hidden in the other window.");
  ok(otherDownloadsButton.closest("#nav-bar"),
     "Button should be back in the nav bar in the other window.");

  await promiseCustomizeEnd();
  ok(downloadsButton.hasAttribute("hidden"),
     "Button should be hidden again outside of customize mode");
  await BrowserTestUtils.closeWindow(otherWin);
});

add_task(async function checkStateForDownloads() {
  ok(Services.prefs.getBoolPref("browser.download.autohideButton"),
     "Should be autohiding the button");
  let downloadsButton = document.getElementById("downloads-button");
  ok(downloadsButton.hasAttribute("hidden"),
     "Button should be hidden when there are no downloads.");

  await task_addDownloads([
    { state: DownloadsCommon.DOWNLOAD_DOWNLOADING },
  ]);
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button should be unhidden when there are downloads.");
  let publicList = await Downloads.getList(Downloads.PUBLIC);
  let downloads = await publicList.getAll();
  for (let download of downloads) {
    publicList.remove(download);
  }
  ok(downloadsButton.hasAttribute("hidden"),
     "Button should be hidden when the download is removed");
  await task_addDownloads([
    { state: DownloadsCommon.DOWNLOAD_DOWNLOADING },
  ]);
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button should be unhidden when there are downloads.");

  Services.prefs.setBoolPref(kDownloadAutoHidePref, false);
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button should still be unhidden.");

  downloads = await publicList.getAll();
  for (let download of downloads) {
    publicList.remove(download);
  }
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button should still be unhidden because the pref was flipped.");
  Services.prefs.setBoolPref(kDownloadAutoHidePref, true);
  ok(downloadsButton.hasAttribute("hidden"),
     "Button should be hidden now that the pref flipped back " +
     "because there were already no downloads.");

  gCustomizeMode.addToPanel(downloadsButton);
  ok(!downloadsButton.hasAttribute("hidden"),
     "Button should not be hidden in the panel.");

  await task_addDownloads([
    { state: DownloadsCommon.DOWNLOAD_DOWNLOADING },
  ]);

  downloads = await publicList.getAll();
  for (let download of downloads) {
    publicList.remove(download);
  }

  ok(!downloadsButton.hasAttribute("hidden"),
     "Button should still not be hidden in the panel " +
     "when downloads count reaches 0 after being non-0.");

  CustomizableUI.reset();
});

/**
 * Check that if the button is moved to the palette, we unhide it
 * in customize mode even if it was always hidden. We use a new
 * window to test this.
 */
add_task(async function checkStateWhenHiddenInPalette() {
  ok(Services.prefs.getBoolPref(kDownloadAutoHidePref),
     "Pref should be causing us to autohide");
  gCustomizeMode.removeFromArea(document.getElementById("downloads-button"));
  // In a new window, the button will have been hidden
  let otherWin = await BrowserTestUtils.openNewBrowserWindow();
  ok(!otherWin.document.getElementById("downloads-button"),
     "Button shouldn't be visible in the window");

  let paletteButton = otherWin.gNavToolbox.palette.querySelector("#downloads-button");
  ok(paletteButton, "Button should exist in the palette");
  if (paletteButton) {
    ok(paletteButton.hidden, "Button will still have the hidden attribute");
    await promiseCustomizeStart(otherWin);
    ok(!paletteButton.hidden,
       "Button should no longer be hidden in customize mode");
    ok(otherWin.document.getElementById("downloads-button"),
       "Button should be in the document now.");
    await promiseCustomizeEnd(otherWin);
    // We purposefully don't assert anything about what happens next.
    // It doesn't really matter if the button remains unhidden in
    // the palette, and if we move it we'll unhide it then (the other
    // tests check this).
  }
  await BrowserTestUtils.closeWindow(otherWin);
  CustomizableUI.reset();
});

function promiseCustomizeStart(aWindow = window) {
  return new Promise(resolve => {
    aWindow.gNavToolbox.addEventListener("customizationready", resolve,
                                         {once: true});
    aWindow.gCustomizeMode.enter();
  });
}

function promiseCustomizeEnd(aWindow = window) {
  return new Promise(resolve => {
    aWindow.gNavToolbox.addEventListener("aftercustomization", resolve,
                                         {once: true});
    aWindow.gCustomizeMode.exit();
  });
}

