1 // Copyright 2014 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_DISPLAY_SCREEN_ASH_H_ 6 #define ASH_DISPLAY_SCREEN_ASH_H_ 7 8 #include "ash/ash_export.h" 9 #include "base/compiler_specific.h" 10 #include "base/observer_list.h" 11 #include "ui/gfx/display_observer.h" 12 #include "ui/gfx/screen.h" 13 14 namespace gfx { 15 class Rect; 16 } 17 18 namespace ash { 19 namespace internal { 20 class DisplayManager; 21 } 22 23 // Aura implementation of gfx::Screen. Implemented here to avoid circular 24 // dependencies. 25 class ASH_EXPORT ScreenAsh : public gfx::Screen { 26 public: 27 ScreenAsh(); 28 virtual ~ScreenAsh(); 29 30 // Finds the display that contains |point| in screeen coordinates. 31 // Returns invalid display if there is no display that can satisfy 32 // the condition. 33 static gfx::Display FindDisplayContainingPoint(const gfx::Point& point); 34 35 // Returns the bounds for maximized windows in parent coordinates. 36 // Maximized windows trigger auto-hiding the shelf. 37 static gfx::Rect GetMaximizedWindowBoundsInParent(aura::Window* window); 38 39 // Returns the display bounds in parent coordinates. 40 static gfx::Rect GetDisplayBoundsInParent(aura::Window* window); 41 42 // Returns the display's work area bounds in parent coordinates. 43 static gfx::Rect GetDisplayWorkAreaBoundsInParent(aura::Window* window); 44 45 // Converts |rect| from |window|'s coordinates to the virtual screen 46 // coordinates. 47 static gfx::Rect ConvertRectToScreen(aura::Window* window, 48 const gfx::Rect& rect); 49 50 // Converts |rect| from virtual screen coordinates to the |window|'s 51 // coordinates. 52 static gfx::Rect ConvertRectFromScreen(aura::Window* window, 53 const gfx::Rect& rect); 54 55 // Returns a gfx::Display object for secondary display. Returns 56 // invalid display if there is no secondary display connected. 57 static const gfx::Display& GetSecondaryDisplay(); 58 59 // Returns a gfx::Display object for the specified id. Returns 60 // invalid display if no such display is connected. 61 static const gfx::Display& GetDisplayForId(int64 display_id); 62 63 // gfx::Screen overrides: 64 virtual bool IsDIPEnabled() OVERRIDE; 65 virtual gfx::Point GetCursorScreenPoint() OVERRIDE; 66 virtual gfx::NativeWindow GetWindowUnderCursor() OVERRIDE; 67 virtual gfx::NativeWindow GetWindowAtScreenPoint(const gfx::Point& point) 68 OVERRIDE; 69 virtual int GetNumDisplays() const OVERRIDE; 70 virtual std::vector<gfx::Display> GetAllDisplays() const OVERRIDE; 71 virtual gfx::Display GetDisplayNearestWindow( 72 gfx::NativeView view) const OVERRIDE; 73 virtual gfx::Display GetDisplayNearestPoint( 74 const gfx::Point& point) const OVERRIDE; 75 virtual gfx::Display GetDisplayMatching( 76 const gfx::Rect& match_rect) const OVERRIDE; 77 virtual gfx::Display GetPrimaryDisplay() const OVERRIDE; 78 virtual void AddObserver(gfx::DisplayObserver* observer) OVERRIDE; 79 virtual void RemoveObserver(gfx::DisplayObserver* observer) OVERRIDE; 80 81 private: 82 friend class DisplayManager; 83 84 // Notifies observers of display configuration changes. 85 void NotifyMetricsChanged(const gfx::Display& display, uint32_t metrics); 86 void NotifyDisplayAdded(const gfx::Display& display); 87 void NotifyDisplayRemoved(const gfx::Display& display); 88 89 // Creates a screen that can be used during shutdown. 90 // It simply has a copy of the displays. 91 gfx::Screen* CloneForShutdown(); 92 93 ObserverList<gfx::DisplayObserver> observers_; 94 95 DISALLOW_COPY_AND_ASSIGN(ScreenAsh); 96 }; 97 98 } // namespace ash 99 100 #endif // ASH_DISPLAY_SCREEN_ASH_H_ 101
