ash/shell_delegate.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef ASH_SHELL_DELEGATE_H_
   6 #define ASH_SHELL_DELEGATE_H_
   7 #pragma once
   8
   9 #include <vector>
  10
  11 #include "ash/ash_export.h"
  12 #include "ash/shell.h"
  13 #include "base/callback.h"
  14 #include "base/string16.h"
  15
  16 namespace aura {
  17 class Window;
  18 }
  19
  20 namespace views {
  21 class Widget;
  22 }
  23
  24 namespace ash {
  25
  26 class AppListViewDelegate;
  27 class LauncherDelegate;
  28 class LauncherModel;
  29 struct LauncherItem;
  30 class ScreenshotDelegate;
  31 class SystemTray;
  32 class SystemTrayDelegate;
  33 class UserWallpaperDelegate;
  34
  35 // Delegate of the Shell.
  36 class ASH_EXPORT ShellDelegate {
  37  public:
  38   // The Shell owns the delegate.
  39   virtual ~ShellDelegate() {}
  40
  41   // Returns true if user has logged in.
  42   virtual bool IsUserLoggedIn() = 0;
  43
  44   // Invoked when a user locks the screen.
  45   virtual void LockScreen() = 0;
  46
  47   // Unlock the screen. Currently used only for tests.
  48   virtual void UnlockScreen() = 0;
  49
  50   // Returns true if the screen is currently locked.
  51   virtual bool IsScreenLocked() const = 0;
  52
  53   // Invoked when a user uses Ctrl-M to open file manager.
  54   virtual void OpenFileManager() = 0;
  55
  56   // Invoked when a user uses Ctrl-Shift-Q to close chrome.
  57   virtual void Exit() = 0;
  58
  59   // Invoked when a user uses Ctrl-N or Ctrl-Shift-N to open a new window.
  60   virtual void NewWindow(bool incognito) = 0;
  61
  62   // Invoked to create an AppListViewDelegate. Shell takes the ownership of
  63   // the created delegate.
  64   virtual AppListViewDelegate* CreateAppListViewDelegate() = 0;
  65
  66   // Invoked to start taking partial screenshot.
  67   virtual void StartPartialScreenshot(
  68       ScreenshotDelegate* screenshot_delegate) = 0;
  69
  70   // Creates a new LauncherDelegate. Shell takes ownership of the returned
  71   // value.
  72   virtual LauncherDelegate* CreateLauncherDelegate(
  73       ash::LauncherModel* model) = 0;
  74
  75   // Creates a system-tray delegate. Shell takes ownership of the delegate.
  76   virtual SystemTrayDelegate* CreateSystemTrayDelegate(SystemTray* tray) = 0;
  77
  78   // Creates a user wallpaper delegate. Shell takes ownership of the delegate.
  79   virtual UserWallpaperDelegate* CreateUserWallpaperDelegate() = 0;
  80 };
  81
  82 }  // namespace ash
  83
  84 #endif  // ASH_SHELL_DELEGATE_H_