// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "chrome/browser/ui/apps/app_metro_infobar_delegate_win.h"

#include "base/bind_helpers.h"
#include "base/message_loop/message_loop.h"
#include "base/prefs/pref_service.h"
#include "chrome/browser/apps/app_launch_for_metro_restart_win.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/infobars/infobar.h"
#include "chrome/browser/infobars/infobar_service.h"
#include "chrome/browser/lifetime/application_lifetime.h"
#include "chrome/browser/metro_utils/metro_chrome_win.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/app_list/app_list_icon_win.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_window.h"
#include "chrome/browser/ui/host_desktop.h"
#include "chrome/browser/ui/scoped_tabbed_browser_displayer.h"
#include "chrome/common/pref_names.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/url_constants.h"
#include "grit/generated_resources.h"
#include "grit/google_chrome_strings.h"
#include "ui/base/l10n/l10n_util.h"
#include "win8/util/win8_util.h"

// static
void AppMetroInfoBarDelegateWin::Create(
    Profile* profile,
    Mode mode,
    const std::string& extension_id) {
  DCHECK(win8::IsSingleWindowMetroMode());
  DCHECK_EQ(mode == SHOW_APP_LIST, extension_id.empty());

  // Chrome should never get here via the Ash desktop, so only look for browsers
  // on the native desktop.
  chrome::ScopedTabbedBrowserDisplayer displayer(
      profile, chrome::HOST_DESKTOP_TYPE_NATIVE);

  // Create a new tab at about:blank, and add the infobar.
  content::OpenURLParams params(GURL(content::kAboutBlankURL),
      content::Referrer(), NEW_FOREGROUND_TAB, content::PAGE_TRANSITION_LINK,
      false);
  content::WebContents* web_contents = displayer.browser()->OpenURL(params);
  InfoBarService::FromWebContents(web_contents)->AddInfoBar(
      ConfirmInfoBarDelegate::CreateInfoBar(scoped_ptr<ConfirmInfoBarDelegate>(
          new AppMetroInfoBarDelegateWin(mode, extension_id))));

  // Use PostTask because we can get here in a COM SendMessage, and
  // ActivateApplication can not be sent nested (returns error
  // RPC_E_CANTCALLOUT_ININPUTSYNCCALL).
  base::MessageLoop::current()->PostTask(
      FROM_HERE, base::Bind(base::IgnoreResult(chrome::ActivateMetroChrome)));
}

AppMetroInfoBarDelegateWin::AppMetroInfoBarDelegateWin(
    Mode mode,
    const std::string& extension_id)
    : ConfirmInfoBarDelegate(),
      mode_(mode),
      extension_id_(extension_id) {
  DCHECK_EQ(mode_ == SHOW_APP_LIST, extension_id_.empty());
}

AppMetroInfoBarDelegateWin::~AppMetroInfoBarDelegateWin() {}

int AppMetroInfoBarDelegateWin::GetIconID() const {
  return GetAppListIconResourceId();
}

base::string16 AppMetroInfoBarDelegateWin::GetMessageText() const {
  return l10n_util::GetStringUTF16(mode_ == SHOW_APP_LIST ?
      IDS_WIN8_INFOBAR_DESKTOP_RESTART_FOR_APP_LIST :
      IDS_WIN8_INFOBAR_DESKTOP_RESTART_FOR_PACKAGED_APP);
}

base::string16 AppMetroInfoBarDelegateWin::GetButtonLabel(
    InfoBarButton button) const {
  return l10n_util::GetStringUTF16(button == BUTTON_CANCEL ?
      IDS_WIN8_INFOBAR_DESKTOP_RESTART_TO_LAUNCH_APPS_NO_BUTTON :
      IDS_WIN8_INFOBAR_DESKTOP_RESTART_TO_LAUNCH_APPS_YES_BUTTON);
}

bool AppMetroInfoBarDelegateWin::Accept() {
  PrefService* prefs = g_browser_process->local_state();
  if (mode_ == SHOW_APP_LIST) {
    prefs->SetBoolean(prefs::kRestartWithAppList, true);
  } else {
    app_metro_launch::SetAppLaunchForMetroRestart(
        Profile::FromBrowserContext(web_contents()->GetBrowserContext()),
        extension_id_);
  }

  web_contents()->Close();  // Note: deletes |this|.
  chrome::AttemptRestartToDesktopMode();
  return false;
}

bool AppMetroInfoBarDelegateWin::Cancel() {
  web_contents()->Close();
  return false;
}

base::string16 AppMetroInfoBarDelegateWin::GetLinkText() const {
  return l10n_util::GetStringUTF16(IDS_LEARN_MORE);
}

bool AppMetroInfoBarDelegateWin::LinkClicked(
    WindowOpenDisposition disposition) {
  web_contents()->OpenURL(content::OpenURLParams(
      GURL("https://support.google.com/chrome/?p=ib_redirect_to_desktop"),
      content::Referrer(),
      (disposition == CURRENT_TAB) ? NEW_FOREGROUND_TAB : disposition,
      content::PAGE_TRANSITION_LINK, false));
  return false;
}