| // Copyright 2017 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. |
| |
| #ifndef ASH_SHELF_LOGIN_SHELF_VIEW_H_ |
| #define ASH_SHELF_LOGIN_SHELF_VIEW_H_ |
| |
| #include "ash/ash_export.h" |
| #include "ash/lock_screen_action/lock_screen_action_background_observer.h" |
| #include "ash/shutdown_controller.h" |
| #include "ash/tray_action/tray_action_observer.h" |
| #include "base/scoped_observer.h" |
| #include "ui/views/controls/button/button.h" |
| #include "ui/views/view.h" |
| |
| namespace gfx { |
| class ImageSkia; |
| } |
| |
| namespace session_manager { |
| enum class SessionState; |
| } |
| |
| namespace ash { |
| |
| class LockScreenActionBackgroundController; |
| enum class LockScreenActionBackgroundState; |
| class TrayAction; |
| |
| // LoginShelfView contains the shelf buttons visible outside of an active user |
| // session. ShelfView and LoginShelfView should never be shown together. |
| class ASH_EXPORT LoginShelfView : public views::View, |
| public views::ButtonListener, |
| public TrayActionObserver, |
| public LockScreenActionBackgroundObserver, |
| public ShutdownController::Observer { |
| public: |
| enum ButtonId { |
| kShutdown = 1, // Shut down the device. |
| kRestart, // Restart the device. |
| kSignOut, // Sign out the active user session. |
| kCloseNote, // Close the lock screen note. |
| kCancel, // Cancel multiple user sign-in. |
| kBrowseAsGuest, // Use in guest mode. |
| kAddUser, // Add a new user. |
| }; |
| |
| explicit LoginShelfView( |
| LockScreenActionBackgroundController* lock_screen_action_background); |
| ~LoginShelfView() override; |
| |
| // ShelfWidget observes SessionController for higher-level UI changes and |
| // then notifies LoginShelfView to update its own UI. |
| void UpdateAfterSessionStateChange(session_manager::SessionState state); |
| |
| // views::View: |
| const char* GetClassName() const override; |
| void OnFocus() override; |
| void AboutToRequestFocusFromTabTraversal(bool reverse) override; |
| void GetAccessibleNodeData(ui::AXNodeData* node_data) override; |
| |
| // views::ButtonListener: |
| void ButtonPressed(views::Button* sender, const ui::Event& event) override; |
| |
| protected: |
| // TrayActionObserver: |
| void OnLockScreenNoteStateChanged(mojom::TrayActionState state) override; |
| |
| // LockScreenActionBackgroundObserver: |
| void OnLockScreenActionBackgroundStateChanged( |
| LockScreenActionBackgroundState state) override; |
| |
| // ShutdownController::Observer: |
| void OnShutdownPolicyChanged(bool reboot_on_shutdown) override; |
| |
| private: |
| bool LockScreenActionBackgroundAnimating() const; |
| |
| // Updates the visibility of buttons based on state changes, e.g. shutdown |
| // policy updates, session state changes etc. |
| void UpdateUi(); |
| |
| LockScreenActionBackgroundController* lock_screen_action_background_; |
| |
| ScopedObserver<TrayAction, TrayActionObserver> tray_action_observer_; |
| |
| ScopedObserver<LockScreenActionBackgroundController, |
| LockScreenActionBackgroundObserver> |
| lock_screen_action_background_observer_; |
| |
| ScopedObserver<ShutdownController, ShutdownController::Observer> |
| shutdown_controller_observer_; |
| |
| DISALLOW_COPY_AND_ASSIGN(LoginShelfView); |
| }; |
| |
| } // namespace ash |
| |
| #endif // ASH_SHELF_LOGIN_SHELF_VIEW_H_ |