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 CursorWindowControllerTest;
  19 class CursorWindowDelegate;
  20
  21 // Draws a mouse cursor on a given container window.
  22 // When cursor compositing is disabled, CursorWindowController is responsible
  23 // to scale and rotate the mouse cursor bitmap to match settings of the
  24 // primary display.
  25 // When cursor compositing is enabled, just draw the cursor as-is.
  26 class ASH_EXPORT CursorWindowController {
  27  public:
  28   CursorWindowController();
  29   ~CursorWindowController();
  30
  31   bool is_cursor_compositing_enabled() const {
  32     return is_cursor_compositing_enabled_;
  33   }
  34
  35   // Sets cursor compositing mode on/off.
  36   void SetCursorCompositingEnabled(bool enabled);
  37
  38   // Updates the container window for the cursor window controller.
  39   void UpdateContainer();
  40
  41   // Sets the display on which to draw cursor.
  42   // Only applicable when cursor compositing is enabled.
  43   void SetDisplay(const gfx::Display& display);
  44
  45   // Sets cursor location, shape, set and visibility.
  46   void UpdateLocation();
  47   void SetCursor(gfx::NativeCursor cursor);
  48   void SetCursorSet(ui::CursorSetType);
  49   void SetVisibility(bool visible);
  50
  51  private:
  52   friend class CursorWindowControllerTest;
  53   friend class test::MirrorWindowTestApi;
  54
  55   // Sets the container window for the cursor window controller.
  56   // Closes the cursor window if |container| is NULL.
  57   void SetContainer(aura::Window* container);
  58
  59   // Sets the bounds of the container in screen coordinates.
  60   void SetBoundsInScreen(const gfx::Rect& bounds);
  61
  62   // Updates cursor image based on current cursor state.
  63   void UpdateCursorImage();
  64
  65   // Hides/shows cursor window based on current cursor state.
  66   void UpdateCursorVisibility();
  67
  68   bool is_cursor_compositing_enabled_;
  69   aura::Window* container_;
  70
  71   // The bounds of the container in screen coordinates.
  72   gfx::Rect bounds_in_screen_;
  73
  74   // The native_type of the cursor, see definitions in cursor.h
  75   int cursor_type_;
  76
  77   // The last requested cursor visibility.
  78   bool visible_;
  79
  80   ui::CursorSetType cursor_set_;
  81   gfx::Point hot_point_;
  82
  83   // The display on which the cursor is drawn.
  84   // For mirroring mode, the display is always the primary display.
  85   gfx::Display display_;
  86
  87   scoped_ptr<aura::Window> cursor_window_;
  88   scoped_ptr<CursorWindowDelegate> delegate_;
  89
  90   DISALLOW_COPY_AND_ASSIGN(CursorWindowController);
  91 };
  92
  93 }  // namespace ash
  94
  95 #endif  // ASH_DISPLAY_CURSOR_WINDOW_CONTROLLER_H_