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