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   ~DesktopDragDropClientWin() override;
  28
  29   // Overridden from aura::client::DragDropClient:
  30   int StartDragAndDrop(const ui::OSExchangeData& data,
  31                        aura::Window* root_window,
  32                        aura::Window* source_window,
  33                        const gfx::Point& screen_location,
  34                        int operation,
  35                        ui::DragDropTypes::DragEventSource source) override;
  36   void DragUpdate(aura::Window* target, const ui::LocatedEvent& event) override;
  37   void Drop(aura::Window* target, const ui::LocatedEvent& event) override;
  38   void DragCancel() override;
  39   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   Microsoft::WRL::ComPtr<ui::DragSourceWin> drag_source_;
  49
  50   scoped_refptr<DesktopDropTargetWin> drop_target_;
  51
  52   base::WeakPtrFactory<DesktopDragDropClientWin> weak_factory_;
  53
  54   DISALLOW_COPY_AND_ASSIGN(DesktopDragDropClientWin);
  55 };
  56
  57 }  // namespace views
  58
  59 #endif  // UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_DRAG_DROP_CLIENT_WIN_H_