ui/ozone/platform/dri/dri_window_manager.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_PLATFORM_DRI_DRI_WINDOW_MANAGER_H_
   6 #define UI_OZONE_PLATFORM_DRI_DRI_WINDOW_MANAGER_H_
   7
   8 #include <map>
   9
  10 #include "base/memory/scoped_ptr.h"
  11 #include "ui/gfx/native_widget_types.h"
  12
  13 namespace ui {
  14
  15 class DriCursor;
  16 class DriWindow;
  17 class HardwareCursorDelegate;
  18
  19 // Responsible for keeping the mapping between the allocated widgets and
  20 // windows.
  21 class DriWindowManager {
  22  public:
  23   explicit DriWindowManager(HardwareCursorDelegate* cursor_delegate);
  24   ~DriWindowManager();
  25
  26   gfx::AcceleratedWidget NextAcceleratedWidget();
  27
  28   // Adds a window for |widget|. Note: |widget| should not be associated when
  29   // calling this function.
  30   void AddWindow(gfx::AcceleratedWidget widget, DriWindow* window);
  31
  32   // Removes the window association for |widget|. Note: |widget| must be
  33   // associated with a window when calling this function.
  34   void RemoveWindow(gfx::AcceleratedWidget widget);
  35
  36   // Returns the window associated with |widget|. Note: This function should
  37   // only be called if a valid window has been associated.
  38   DriWindow* GetWindow(gfx::AcceleratedWidget widget);
  39
  40   DriCursor* cursor() const { return cursor_.get(); }
  41
  42  private:
  43   // Reset the cursor location based on the list of active windows.
  44   void ResetCursorLocation();
  45
  46   typedef std::map<gfx::AcceleratedWidget, DriWindow*> WidgetToWindowMap;
  47
  48   gfx::AcceleratedWidget last_allocated_widget_;
  49   WidgetToWindowMap window_map_;
  50
  51   scoped_ptr<DriCursor> cursor_;
  52
  53   DISALLOW_COPY_AND_ASSIGN(DriWindowManager);
  54 };
  55
  56 }  // namespace ui
  57
  58 #endif  // UI_OZONE_PLATFORM_DRI_DRI_WINDOW_MANAGER_H_