| // Copyright 2014 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_DISPLAY_SCREEN_ASH_H_ |
| #define ASH_DISPLAY_SCREEN_ASH_H_ |
| |
| #include "ash/ash_export.h" |
| #include "base/compiler_specific.h" |
| #include "base/observer_list.h" |
| #include "ui/gfx/display_observer.h" |
| #include "ui/gfx/screen.h" |
| |
| namespace gfx { |
| class Rect; |
| } |
| |
| namespace ash { |
| namespace internal { |
| class DisplayManager; |
| } |
| |
| // Aura implementation of gfx::Screen. Implemented here to avoid circular |
| // dependencies. |
| class ASH_EXPORT ScreenAsh : public gfx::Screen { |
| public: |
| ScreenAsh(); |
| ~ScreenAsh() override; |
| |
| // gfx::Screen overrides: |
| gfx::Point GetCursorScreenPoint() override; |
| gfx::NativeWindow GetWindowUnderCursor() override; |
| gfx::NativeWindow GetWindowAtScreenPoint(const gfx::Point& point) override; |
| int GetNumDisplays() const override; |
| std::vector<gfx::Display> GetAllDisplays() const override; |
| gfx::Display GetDisplayNearestWindow(gfx::NativeView view) const override; |
| gfx::Display GetDisplayNearestPoint(const gfx::Point& point) const override; |
| gfx::Display GetDisplayMatching(const gfx::Rect& match_rect) const override; |
| gfx::Display GetPrimaryDisplay() const override; |
| void AddObserver(gfx::DisplayObserver* observer) override; |
| void RemoveObserver(gfx::DisplayObserver* observer) override; |
| |
| private: |
| friend class DisplayManager; |
| |
| // Notifies observers of display configuration changes. |
| void NotifyMetricsChanged(const gfx::Display& display, uint32_t metrics); |
| void NotifyDisplayAdded(const gfx::Display& display); |
| void NotifyDisplayRemoved(const gfx::Display& display); |
| |
| // Creates a screen that can be used during shutdown. |
| // It simply has a copy of the displays. |
| gfx::Screen* CloneForShutdown(); |
| |
| base::ObserverList<gfx::DisplayObserver> observers_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ScreenAsh); |
| }; |
| |
| } // namespace ash |
| |
| #endif // ASH_DISPLAY_SCREEN_ASH_H_ |