ui/ozone/public/cursor_factory_ozone.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 UI_OZONE_PUBLIC_CURSOR_FACTORY_OZONE_H_
   6 #define UI_OZONE_PUBLIC_CURSOR_FACTORY_OZONE_H_
   7
   8 #include "ui/gfx/native_widget_types.h"
   9 #include "ui/ozone/ozone_base_export.h"
  10
  11 namespace gfx {
  12 class Point;
  13 }
  14
  15 namespace ui {
  16
  17 typedef void* PlatformCursor;
  18
  19 class OZONE_BASE_EXPORT CursorFactoryOzone {
  20  public:
  21   CursorFactoryOzone();
  22   virtual ~CursorFactoryOzone();
  23
  24   // Returns the singleton instance.
  25   static CursorFactoryOzone* GetInstance();
  26
  27   // Return the default cursor of the specified type. The types are listed in
  28   // ui/base/cursor/cursor.h. Default cursors are managed by the implementation
  29   // and must live indefinitely; there's no way to know when to free them.
  30   virtual PlatformCursor GetDefaultCursor(int type);
  31
  32   // Return a image cursor from the specified image & hotspot. Image cursors
  33   // are referenced counted and have an initial refcount of 1. Therefore, each
  34   // CreateImageCursor call must be matched with a call to UnrefImageCursor.
  35   virtual PlatformCursor CreateImageCursor(const SkBitmap& bitmap,
  36                                            const gfx::Point& hotspot);
  37
  38   // Increment platform image cursor refcount.
  39   virtual void RefImageCursor(PlatformCursor cursor);
  40
  41   // Decrement platform image cursor refcount.
  42   virtual void UnrefImageCursor(PlatformCursor cursor);
  43
  44   // Change the active cursor for an AcceleratedWidget.
  45   // TODO(spang): Move this.
  46   virtual void SetCursor(gfx::AcceleratedWidget widget, PlatformCursor cursor);
  47
  48   // Returns the window on which the cursor is active.
  49   // TODO(dnicoara) Move this once the WindowTreeHost refactoring finishes and
  50   // WindowTreeHost::CanDispatchEvent() is no longer present.
  51   virtual gfx::AcceleratedWidget GetCursorWindow();
  52
  53  private:
  54   static CursorFactoryOzone* impl_;  // not owned
  55 };
  56
  57 }  // namespace ui
  58
  59 #endif  // UI_OZONE_PUBLIC_CURSOR_FACTORY_OZONE_H_