1// Copyright (c) 2012 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_BASE_CURSOR_CURSOR_LOADER_X11_H_
6#define UI_BASE_CURSOR_CURSOR_LOADER_X11_H_
7
8#include <X11/Xcursor/Xcursor.h>
9#include <map>
10
11#include "base/compiler_specific.h"
12#include "ui/base/cursor/cursor.h"
13#include "ui/base/cursor/cursor_loader.h"
14#include "ui/base/ui_base_export.h"
15#include "ui/base/x/x11_util.h"
16#include "ui/gfx/display.h"
17
18namespace ui {
19
20class UI_BASE_EXPORT CursorLoaderX11 : public CursorLoader {
21 public:
22  CursorLoaderX11();
23  virtual ~CursorLoaderX11();
24
25  // Overridden from CursorLoader:
26  virtual void LoadImageCursor(int id,
27                               int resource_id,
28                               const gfx::Point& hot) OVERRIDE;
29  virtual void LoadAnimatedCursor(int id,
30                                  int resource_id,
31                                  const gfx::Point& hot,
32                                  int frame_delay_ms) OVERRIDE;
33  virtual void UnloadAll() OVERRIDE;
34  virtual void SetPlatformCursor(gfx::NativeCursor* cursor) OVERRIDE;
35
36  const XcursorImage* GetXcursorImageForTest(int id);
37
38 private:
39  // Returns true if we have an image resource loaded for the |native_cursor|.
40  bool IsImageCursor(gfx::NativeCursor native_cursor);
41
42  // Gets the X Cursor corresponding to the |native_cursor|.
43  ::Cursor ImageCursorFromNative(gfx::NativeCursor native_cursor);
44
45  // A map to hold all image cursors. It maps the cursor ID to the X Cursor.
46  typedef std::map<int, ::Cursor> ImageCursorMap;
47  ImageCursorMap cursors_;
48
49  // A map to hold all animated cursors. It maps the cursor ID to the pair of
50  // the X Cursor and the corresponding XcursorImages. We need a pointer to the
51  // images so that we can free them on destruction.
52  typedef std::map<int, std::pair< ::Cursor, XcursorImages*> >
53      AnimatedCursorMap;
54  AnimatedCursorMap animated_cursors_;
55
56  const XScopedCursor invisible_cursor_;
57
58  DISALLOW_COPY_AND_ASSIGN(CursorLoaderX11);
59};
60
61}  // namespace ui
62
63#endif  // UI_BASE_CURSOR_CURSOR_LOADER_X11_H_
64