blob: cb162ff68efa907054129c00024225260fa33419 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_PUBLIC_BROWSER_WEB_DRAG_DEST_DELEGATE_H_
#define CONTENT_PUBLIC_BROWSER_WEB_DRAG_DEST_DELEGATE_H_
#pragma once
#if defined(TOOLKIT_GTK)
#include <gtk/gtk.h>
#endif // TOOLKIT_GTK
#include "base/string16.h"
#if defined(OS_WIN)
#include "ui/base/dragdrop/drop_target.h"
#endif
class GURL;
struct WebDropData;
namespace ui {
class OSExchangeData;
}
namespace content {
class WebContents;
// An optional delegate that listens for drags of bookmark data.
class WebDragDestDelegate {
public:
// Announces that a drag has started. It's valid that a drag starts, along
// with over/enter/leave/drop notifications without receiving any bookmark
// data.
virtual void DragInitialize(WebContents* contents) = 0;
// Notifications of drag progression.
#if defined(OS_WIN) && !defined(USE_AURA)
virtual void OnDragOver(IDataObject* data_object) = 0;
virtual void OnDragEnter(IDataObject* data_object) = 0;
virtual void OnDrop(IDataObject* data_object) = 0;
virtual void OnDragLeave(IDataObject* data_object) = 0;
#else
virtual void OnDragOver() = 0;
virtual void OnDragEnter() = 0;
virtual void OnDrop() = 0;
// This should also clear any state kept about this drag.
virtual void OnDragLeave() = 0;
#endif
#if defined(TOOLKIT_GTK)
// Returns the bookmark atom type. GTK and Views return different values here.
virtual GdkAtom GetBookmarkTargetAtom() const = 0;
// Called when WebDragDestkGtk detects that there's bookmark data in a
// drag. Not every drag will trigger these.
virtual void OnReceiveDataFromGtk(GtkSelectionData* data) = 0;
virtual void OnReceiveProcessedData(const GURL& url,
const string16& title) = 0;
#elif defined(USE_AURA)
// Called at the start of every drag to supply the data associated with the
// drag.
virtual void OnReceiveDragData(const ui::OSExchangeData& data) = 0;
#elif defined(OS_WIN)
// Allows the delegate to set data on the drag. If it doesn't want to set
// data, it should return false.
virtual bool AddDragData(const WebDropData& drop_data,
ui::OSExchangeData* data) = 0;
#endif // TOOLKIT_GTK
virtual ~WebDragDestDelegate() {}
};
} // namespace content
#endif // CONTENT_PUBLIC_BROWSER_WEB_DRAG_DEST_DELEGATE_H_
|
