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 #include "ui/gfx/screen.h" 6 7 #include "base/logging.h" 8 #include "ui/gfx/android/device_display_info.h" 9 #include "ui/gfx/display.h" 10 #include "ui/gfx/size_conversions.h" 11 12 namespace gfx { 13 14 class ScreenAndroid : public Screen { 15 public: ScreenAndroid()16 ScreenAndroid() {} 17 IsDIPEnabled()18 virtual bool IsDIPEnabled() OVERRIDE { return true; } 19 GetCursorScreenPoint()20 virtual gfx::Point GetCursorScreenPoint() OVERRIDE { return gfx::Point(); } 21 GetWindowUnderCursor()22 virtual gfx::NativeWindow GetWindowUnderCursor() OVERRIDE { 23 NOTIMPLEMENTED(); 24 return NULL; 25 } 26 GetWindowAtScreenPoint(const gfx::Point & point)27 virtual gfx::NativeWindow GetWindowAtScreenPoint(const gfx::Point& point) 28 OVERRIDE { 29 NOTIMPLEMENTED(); 30 return NULL; 31 } 32 GetPrimaryDisplay() const33 virtual gfx::Display GetPrimaryDisplay() const OVERRIDE { 34 gfx::DeviceDisplayInfo device_info; 35 const float device_scale_factor = device_info.GetDIPScale(); 36 const gfx::Rect bounds_in_pixels = 37 gfx::Rect( 38 device_info.GetDisplayWidth(), 39 device_info.GetDisplayHeight()); 40 const gfx::Rect bounds_in_dip = 41 gfx::Rect(gfx::ToCeiledSize(gfx::ScaleSize( 42 bounds_in_pixels.size(), 1.0f / device_scale_factor))); 43 gfx::Display display(0, bounds_in_dip); 44 if (!gfx::Display::HasForceDeviceScaleFactor()) 45 display.set_device_scale_factor(device_scale_factor); 46 return display; 47 } 48 GetDisplayNearestWindow(gfx::NativeView view) const49 virtual gfx::Display GetDisplayNearestWindow( 50 gfx::NativeView view) const OVERRIDE { 51 return GetPrimaryDisplay(); 52 } 53 GetDisplayNearestPoint(const gfx::Point & point) const54 virtual gfx::Display GetDisplayNearestPoint( 55 const gfx::Point& point) const OVERRIDE { 56 return GetPrimaryDisplay(); 57 } 58 GetNumDisplays() const59 virtual int GetNumDisplays() const OVERRIDE { return 1; } 60 GetAllDisplays() const61 virtual std::vector<gfx::Display> GetAllDisplays() const OVERRIDE { 62 return std::vector<gfx::Display>(1, GetPrimaryDisplay()); 63 } 64 GetDisplayMatching(const gfx::Rect & match_rect) const65 virtual gfx::Display GetDisplayMatching( 66 const gfx::Rect& match_rect) const OVERRIDE { 67 return GetPrimaryDisplay(); 68 } 69 AddObserver(DisplayObserver * observer)70 virtual void AddObserver(DisplayObserver* observer) OVERRIDE { 71 // no display change on Android. 72 } 73 RemoveObserver(DisplayObserver * observer)74 virtual void RemoveObserver(DisplayObserver* observer) OVERRIDE { 75 // no display change on Android. 76 } 77 78 private: 79 DISALLOW_COPY_AND_ASSIGN(ScreenAndroid); 80 }; 81 CreateNativeScreen()82Screen* CreateNativeScreen() { 83 return new ScreenAndroid; 84 } 85 86 } // namespace gfx 87