ui/views/widget/desktop_aura/desktop_drag_drop_client_win.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_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_DRAG_DROP_CLIENT_WIN_H_
   6 #define UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_DRAG_DROP_CLIENT_WIN_H_
   7
   8 #include <wrl/client.h>
   9
  10 #include "base/compiler_specific.h"
  11 #include "base/memory/ref_counted.h"
  12 #include "base/memory/weak_ptr.h"
  13 #include "ui/views/views_export.h"
  14 #include "ui/wm/public/drag_drop_client.h"
  15
  16 namespace ui {
  17 class DragSourceWin;
  18 }
  19
  20 namespace views {
  21 class DesktopDropTargetWin;
  22
  23 class VIEWS_EXPORT DesktopDragDropClientWin
  24     : public aura::client::DragDropClient {
  25  public:
  26   DesktopDragDropClientWin(aura::Window* root_window, HWND window);
  27   virtual ~DesktopDragDropClientWin();
  28
  29   // Overridden from aura::client::DragDropClient:
  30   virtual int StartDragAndDrop(
  31       const ui::OSExchangeData& data,
  32       aura::Window* root_window,
  33       aura::Window* source_window,
  34       const gfx::Point& screen_location,
  35       int operation,
  36       ui::DragDropTypes::DragEventSource source) override;
  37   virtual void DragUpdate(aura::Window* target,
  38                           const ui::LocatedEvent& event) override;
  39   virtual void Drop(aura::Window* target,
  40                     const ui::LocatedEvent& event) override;
  41   virtual void DragCancel() override;
  42   virtual bool IsDragDropInProgress() override;
  43
  44   void OnNativeWidgetDestroying(HWND window);
  45
  46  private:
  47   bool drag_drop_in_progress_;
  48
  49   int drag_operation_;
  50
  51   Microsoft::WRL::ComPtr<ui::DragSourceWin> drag_source_;
  52
  53   scoped_refptr<DesktopDropTargetWin> drop_target_;
  54
  55   base::WeakPtrFactory<DesktopDragDropClientWin> weak_factory_;
  56
  57   DISALLOW_COPY_AND_ASSIGN(DesktopDragDropClientWin);
  58 };
  59
  60 }  // namespace views
  61
  62 #endif  // UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_DRAG_DROP_CLIENT_WIN_H_