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