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#include "ui/views/widget/desktop_aura/desktop_drag_drop_client_win.h"
6
7#include "ui/base/dragdrop/drag_drop_types.h"
8#include "ui/base/dragdrop/drag_source_win.h"
9#include "ui/base/dragdrop/drop_target_event.h"
10#include "ui/base/dragdrop/os_exchange_data_provider_win.h"
11#include "ui/views/widget/desktop_aura/desktop_drop_target_win.h"
12#include "ui/views/widget/desktop_aura/desktop_window_tree_host_win.h"
13
14namespace views {
15
16DesktopDragDropClientWin::DesktopDragDropClientWin(
17    aura::Window* root_window,
18    HWND window)
19    : drag_drop_in_progress_(false),
20      drag_operation_(0) {
21  drop_target_ = new DesktopDropTargetWin(root_window, window);
22}
23
24DesktopDragDropClientWin::~DesktopDragDropClientWin() {
25}
26
27int DesktopDragDropClientWin::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) {
34  drag_drop_in_progress_ = true;
35  drag_operation_ = operation;
36
37  drag_source_ = new ui::DragSourceWin;
38  DWORD effect;
39  HRESULT result = DoDragDrop(
40      ui::OSExchangeDataProviderWin::GetIDataObject(data),
41      drag_source_,
42      ui::DragDropTypes::DragOperationToDropEffect(operation),
43      &effect);
44
45  drag_drop_in_progress_ = false;
46
47  if (result != DRAGDROP_S_DROP)
48    effect = DROPEFFECT_NONE;
49
50  return ui::DragDropTypes::DropEffectToDragOperation(effect);
51}
52
53void DesktopDragDropClientWin::DragUpdate(aura::Window* target,
54                                          const ui::LocatedEvent& event) {
55}
56
57void DesktopDragDropClientWin::Drop(aura::Window* target,
58                                    const ui::LocatedEvent& event) {
59}
60
61void DesktopDragDropClientWin::DragCancel() {
62  drag_source_->CancelDrag();
63  drag_operation_ = 0;
64}
65
66bool DesktopDragDropClientWin::IsDragDropInProgress() {
67  return drag_drop_in_progress_;
68}
69
70void DesktopDragDropClientWin::OnNativeWidgetDestroying(HWND window) {
71  if (drop_target_.get()) {
72    RevokeDragDrop(window);
73    drop_target_ = NULL;
74  }
75}
76
77}  // namespace views
78