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   ~CursorLoaderX11() override;
  24
  25   // Overridden from CursorLoader:
  26   void LoadImageCursor(int id, int resource_id, const gfx::Point& hot) override;
  27   void LoadAnimatedCursor(int id,
  28                           int resource_id,
  29                           const gfx::Point& hot,
  30                           int frame_delay_ms) override;
  31   void UnloadAll() override;
  32   void SetPlatformCursor(gfx::NativeCursor* cursor) override;
  33
  34   const XcursorImage* GetXcursorImageForTest(int id);
  35
  36  private:
  37   // Returns true if we have an image resource loaded for the |native_cursor|.
  38   bool IsImageCursor(gfx::NativeCursor native_cursor);
  39
  40   // Gets the X Cursor corresponding to the |native_cursor|.
  41   ::Cursor ImageCursorFromNative(gfx::NativeCursor native_cursor);
  42
  43   // A map to hold all image cursors. It maps the cursor ID to the X Cursor.
  44   typedef std::map<int, ::Cursor> ImageCursorMap;
  45   ImageCursorMap cursors_;
  46
  47   // A map to hold all animated cursors. It maps the cursor ID to the pair of
  48   // the X Cursor and the corresponding XcursorImages. We need a pointer to the
  49   // images so that we can free them on destruction.
  50   typedef std::map<int, std::pair< ::Cursor, XcursorImages*> >
  51       AnimatedCursorMap;
  52   AnimatedCursorMap animated_cursors_;
  53
  54   const XScopedCursor invisible_cursor_;
  55
  56   DISALLOW_COPY_AND_ASSIGN(CursorLoaderX11);
  57 };
  58
  59 }  // namespace ui
  60
  61 #endif  // UI_BASE_CURSOR_CURSOR_LOADER_X11_H_