ash/display/cursor_window_controller.h

   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_CURSOR_WINDOW_CONTROLLER_H_
   6 #define ASH_DISPLAY_CURSOR_WINDOW_CONTROLLER_H_
   7
   8 #include "ash/ash_export.h"
   9 #include "ui/aura/window.h"
  10 #include "ui/base/cursor/cursor.h"
  11 #include "ui/gfx/display.h"
  12
  13 namespace ash {
  14 namespace test {
  15 class MirrorWindowTestApi;
  16 }
  17
  18 class CursorWindowDelegate;
  19
  20 // Draws a mouse cursor on a given container window.
  21 // When cursor compositing is disabled, CursorWindowController is responsible
  22 // to scale and rotate the mouse cursor bitmap to match settings of the
  23 // primary display.
  24 // When cursor compositing is enabled, just draw the cursor as-is.
  25 class ASH_EXPORT CursorWindowController {
  26  public:
  27   CursorWindowController();
  28   ~CursorWindowController();
  29
  30   bool is_cursor_compositing_enabled() const {
  31     return is_cursor_compositing_enabled_;
  32   }
  33
  34   // Sets cursor compositing mode on/off.
  35   void SetCursorCompositingEnabled(bool enabled);
  36
  37   // Updates the container window for the cursor window controller.
  38   void UpdateContainer();
  39
  40   // Sets the display on which to draw cursor.
  41   // Only applicable when cursor compositing is enabled.
  42   void SetDisplay(const gfx::Display& display);
  43
  44   // Sets cursor location, shape, set and visibility.
  45   void UpdateLocation();
  46   void SetCursor(gfx::NativeCursor cursor);
  47   void SetCursorSet(ui::CursorSetType);
  48   void SetVisibility(bool visible);
  49
  50  private:
  51   friend class test::MirrorWindowTestApi;
  52
  53   // Sets the container window for the cursor window controller.
  54   // Closes the cursor window if |container| is NULL.
  55   void SetContainer(aura::Window* container);
  56
  57   // Sets the bounds of the container in screen coordinates.
  58   void SetBoundsInScreen(const gfx::Rect& bounds);
  59
  60   // Updates cursor image based on current cursor state.
  61   void UpdateCursorImage();
  62
  63   bool is_cursor_compositing_enabled_;
  64   aura::Window* container_;
  65
  66   // The bounds of the container in screen coordinates.
  67   gfx::Rect bounds_in_screen_;
  68
  69   // The native_type of the cursor, see definitions in cursor.h
  70   int cursor_type_;
  71
  72   ui::CursorSetType cursor_set_;
  73   gfx::Display::Rotation cursor_rotation_;
  74   gfx::Point hot_point_;
  75
  76   // The display on which the cursor is drawn.
  77   // For mirroring mode, the display is always the primary display.
  78   gfx::Display display_;
  79
  80   scoped_ptr<aura::Window> cursor_window_;
  81   scoped_ptr<CursorWindowDelegate> delegate_;
  82
  83   DISALLOW_COPY_AND_ASSIGN(CursorWindowController);
  84 };
  85
  86 }  // namespace ash
  87
  88 #endif  // ASH_DISPLAY_CURSOR_WINDOW_CONTROLLER_H_