text: // Copyright (c) 2012 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/ash/launcher/chrome_launcher_app_menu_item_browser.h"
  
  #include "ash/wm/window_util.h"
  #include "chrome/browser/chrome_notification_types.h"
  #include "chrome/browser/ui/ash/multi_user/multi_user_util.h"
  #include "chrome/browser/ui/browser.h"
  #include "chrome/browser/ui/browser_finder.h"
  #include "chrome/browser/ui/browser_window.h"
  #include "chrome/browser/ui/tabs/tab_strip_model.h"
  #include "content/public/browser/notification_service.h"
  #include "ui/events/event_constants.h"
  
  ChromeLauncherAppMenuItemBrowser::ChromeLauncherAppMenuItemBrowser(
      const base::string16 title,
      const gfx::Image* icon,
      Browser* browser,
      bool has_leading_separator)
      : ChromeLauncherAppMenuItem(title, icon, has_leading_separator),
        browser_(browser) {
    DCHECK(browser);
    registrar_.Add(this,
                   chrome::NOTIFICATION_BROWSER_CLOSING,
                   content::Source<Browser>(browser));
  }
  ChromeLauncherAppMenuItemBrowser::~ChromeLauncherAppMenuItemBrowser() {
  }
  
  bool ChromeLauncherAppMenuItemBrowser::IsActive() const {
    return browser_ == chrome::FindBrowserWithWindow(ash::wm::GetActiveWindow());
  }
  
  bool ChromeLauncherAppMenuItemBrowser::IsEnabled() const {
    return true;
  }
  
  void ChromeLauncherAppMenuItemBrowser::Execute(int event_flags) {
    if (browser_) {
      if (event_flags & (ui::EF_SHIFT_DOWN | ui::EF_MIDDLE_MOUSE_BUTTON)) {
        TabStripModel* tab_strip = browser_->tab_strip_model();
        tab_strip->CloseAllTabs();
      } else {
        // In ChromeOS multiprofile scenario we might need to teleport the window
        // back to the current user desktop.
        multi_user_util::MoveWindowToCurrentDesktop(
            browser_->window()->GetNativeWindow());
        browser_->window()->Show();
        ash::wm::ActivateWindow(browser_->window()->GetNativeWindow());
      }
    }
  }
  
  void ChromeLauncherAppMenuItemBrowser::Observe(
      int type,
      const content::NotificationSource& source,
      const content::NotificationDetails& details) {
    switch (type) {
      case chrome::NOTIFICATION_BROWSER_CLOSING:
        DCHECK_EQ(browser_, content::Source<Browser>(source).ptr());
        browser_ = NULL;
        break;
  
      default:
        NOTREACHED();
    }
  }
  