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      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 <vector>
      9 
     10 #include "ui/gfx/native_widget_types.h"
     11 #include "ui/ozone/ozone_base_export.h"
     12 
     13 namespace gfx {
     14 class Point;
     15 }
     16 
     17 namespace ui {
     18 
     19 typedef void* PlatformCursor;
     20 
     21 class OZONE_BASE_EXPORT CursorFactoryOzone {
     22  public:
     23   CursorFactoryOzone();
     24   virtual ~CursorFactoryOzone();
     25 
     26   // Returns the singleton instance.
     27   static CursorFactoryOzone* GetInstance();
     28 
     29   // Return the default cursor of the specified type. The types are listed in
     30   // ui/base/cursor/cursor.h. Default cursors are managed by the implementation
     31   // and must live indefinitely; there's no way to know when to free them.
     32   virtual PlatformCursor GetDefaultCursor(int type);
     33 
     34   // Return a image cursor from the specified image & hotspot. Image cursors
     35   // are referenced counted and have an initial refcount of 1. Therefore, each
     36   // CreateImageCursor call must be matched with a call to UnrefImageCursor.
     37   virtual PlatformCursor CreateImageCursor(const SkBitmap& bitmap,
     38                                            const gfx::Point& hotspot);
     39 
     40   // Return a animated cursor from the specified image & hotspot. Animated
     41   // cursors are referenced counted and have an initial refcount of 1.
     42   // Therefore, each CreateAnimatedCursor call must be matched with a call to
     43   // UnrefImageCursor.
     44   virtual PlatformCursor CreateAnimatedCursor(
     45       const std::vector<SkBitmap>& bitmaps,
     46       const gfx::Point& hotspot,
     47       int frame_delay_ms);
     48 
     49   // Increment platform image cursor refcount.
     50   virtual void RefImageCursor(PlatformCursor cursor);
     51 
     52   // Decrement platform image cursor refcount.
     53   virtual void UnrefImageCursor(PlatformCursor cursor);
     54 
     55  private:
     56   static CursorFactoryOzone* impl_;  // not owned
     57 };
     58 
     59 }  // namespace ui
     60 
     61 #endif  // UI_OZONE_PUBLIC_CURSOR_FACTORY_OZONE_H_
     62