ui/base/cursor/cursor_loader_x11.h

   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
  18 namespace ui {
  19
  20 class 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_