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