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 UI_AURA_ROOT_WINDOW_HOST_H_ 6 #define UI_AURA_ROOT_WINDOW_HOST_H_ 7 8 #include <vector> 9 10 #include "base/message_loop/message_loop.h" 11 #include "ui/aura/aura_export.h" 12 #include "ui/base/cursor/cursor.h" 13 #include "ui/gfx/native_widget_types.h" 14 15 class SkCanvas; 16 17 namespace gfx { 18 class Insets; 19 class Point; 20 class Rect; 21 class Size; 22 } 23 24 namespace aura { 25 26 class RootWindow; 27 class RootWindowHostDelegate; 28 29 // RootWindowHost bridges between a native window and the embedded RootWindow. 30 // It provides the accelerated widget and maps events from the native os to 31 // aura. 32 class AURA_EXPORT RootWindowHost { 33 public: 34 virtual ~RootWindowHost() {} 35 36 // Creates a new RootWindowHost. The caller owns the returned value. 37 static RootWindowHost* Create(const gfx::Rect& bounds); 38 39 // Returns the actual size of the screen. 40 // (gfx::Screen only reports on the virtual desktop exposed by Aura.) 41 static gfx::Size GetNativeScreenSize(); 42 43 // Sets the delegate, which is normally done by the root window. 44 virtual void SetDelegate(RootWindowHostDelegate* delegate) = 0; 45 46 virtual RootWindow* GetRootWindow() = 0; 47 48 // Returns the accelerated widget. 49 virtual gfx::AcceleratedWidget GetAcceleratedWidget() = 0; 50 51 // Shows the RootWindowHost. 52 virtual void Show() = 0; 53 54 // Hides the RootWindowHost. 55 virtual void Hide() = 0; 56 57 // Toggles the host's full screen state. 58 virtual void ToggleFullScreen() = 0; 59 60 // Gets/Sets the size of the RootWindowHost. 61 virtual gfx::Rect GetBounds() const = 0; 62 virtual void SetBounds(const gfx::Rect& bounds) = 0; 63 64 // Sets/Gets the insets that specifies the effective root window area 65 // in the host window. 66 virtual gfx::Insets GetInsets() const = 0; 67 virtual void SetInsets(const gfx::Insets& insets) = 0; 68 69 // Returns the location of the RootWindow on native screen. 70 virtual gfx::Point GetLocationOnNativeScreen() const = 0; 71 72 // Sets the OS capture to the root window. 73 virtual void SetCapture() = 0; 74 75 // Releases OS capture of the root window. 76 virtual void ReleaseCapture() = 0; 77 78 // Sets the currently displayed cursor. 79 virtual void SetCursor(gfx::NativeCursor cursor) = 0; 80 81 // Queries the mouse's current position relative to the host window and sets 82 // it in |location_return|. Returns true if the cursor is within the host 83 // window. The position set to |location_return| is constrained within the 84 // host window. If the cursor is disabled, returns false and (0, 0) is set to 85 // |location_return|. 86 // This method is expensive, instead use gfx::Screen::GetCursorScreenPoint(). 87 virtual bool QueryMouseLocation(gfx::Point* location_return) = 0; 88 89 // Clips the cursor to the bounds of the root window until UnConfineCursor(). 90 virtual bool ConfineCursorToRootWindow() = 0; 91 virtual void UnConfineCursor() = 0; 92 93 // Called when the cursor visibility has changed. 94 virtual void OnCursorVisibilityChanged(bool show) = 0; 95 96 // Moves the cursor to the specified location relative to the root window. 97 virtual void MoveCursorTo(const gfx::Point& location) = 0; 98 99 // Sets if the window should be focused when shown. 100 virtual void SetFocusWhenShown(bool focus_when_shown) = 0; 101 102 // Copies |source_bounds| from the root window (as displayed on the host 103 // machine) to |canvas| at offset |dest_offset|. The bounds need to be in 104 // physical pixels. 105 virtual bool CopyAreaToSkCanvas(const gfx::Rect& source_bounds, 106 const gfx::Point& dest_offset, 107 SkCanvas* canvas) = 0; 108 109 // Posts |native_event| to the platform's event queue. 110 #if !defined(OS_MACOSX) 111 virtual void PostNativeEvent(const base::NativeEvent& native_event) = 0; 112 #endif 113 114 // Called when the device scale factor of the root window has chagned. 115 virtual void OnDeviceScaleFactorChanged(float device_scale_factor) = 0; 116 117 // Stop listening events in preparation for shutdown. 118 virtual void PrepareForShutdown() = 0; 119 }; 120 121 } // namespace aura 122 123 #endif // UI_AURA_ROOT_WINDOW_HOST_H_ 124
