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
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
/*
* Copyright (c) 2008, 2009, Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_CLIPBOARD_DATA_OBJECT_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_CLIPBOARD_DATA_OBJECT_H_
#include "base/memory/scoped_refptr.h"
#include "third_party/blink/renderer/core/clipboard/data_object_item.h"
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/platform/heap/collection_support/heap_hash_set.h"
#include "third_party/blink/renderer/platform/heap/collection_support/heap_vector.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/supplementable.h"
#include "third_party/blink/renderer/platform/wtf/text/string_hash.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
#include "third_party/blink/renderer/platform/wtf/vector.h"
namespace blink {
class KURL;
class SystemClipboard;
class WebDragData;
class ExecutionContext;
enum class PasteMode;
// A data object for holding data that would be in a clipboard or moved
// during a drag-n-drop operation. This is the data that WebCore is aware
// of and is not specific to a platform.
class CORE_EXPORT DataObject : public GarbageCollected<DataObject>,
public Supplementable<DataObject> {
public:
struct CORE_EXPORT Observer : public GarbageCollectedMixin {
// Called whenever |item_list_| is modified. Note it can be called multiple
// times for a single mutation. For example, DataObject::SetData() calls
// both ClearData() and Add(), each of which can call this method.
virtual void OnItemListChanged() = 0;
};
static DataObject* CreateFromClipboard(ExecutionContext* context,
SystemClipboard*,
PasteMode);
static DataObject* CreateFromClipboard(SystemClipboard*, PasteMode);
static DataObject* CreateFromString(const String&);
static DataObject* Create();
static DataObject* Create(ExecutionContext* context, const WebDragData&);
static DataObject* Create(const WebDragData&);
DataObject();
virtual ~DataObject();
// DataTransferItemList support.
uint32_t length() const;
DataObjectItem* Item(uint32_t index);
void DeleteItem(uint32_t index);
void ClearAll();
// Removes all the items from |item_list_| whose |kind_| is kStringKind.
void ClearStringItems();
// Returns null if an item already exists with the provided type.
DataObjectItem* Add(const String& data, const String& type);
DataObjectItem* Add(File*);
DataObjectItem* Add(File*, const String& file_system_id);
// WebCore helpers.
void ClearData(const String& type);
Vector<String> Types() const;
String GetData(const String& type) const;
void SetData(const String& type, const String& data);
void UrlAndTitle(String& url, String* title = nullptr) const;
void SetURLAndTitle(const String& url, const String& title);
void HtmlAndBaseURL(String& html, KURL& base_url) const;
void SetHTMLAndBaseURL(const String& html, const KURL& base_url);
Vector<String> Urls() const;
// Used for dragging in files from the desktop.
bool ContainsFilenames() const;
Vector<String> Filenames() const;
void AddFilename(ExecutionContext* context,
const String& filename,
const String& display_name,
const String& file_system_id,
scoped_refptr<FileSystemAccessDropData>
file_system_access_entry = nullptr);
// Used for dragging in filesystem from the desktop.
void SetFilesystemId(const String& file_system_id) {
filesystem_id_ = file_system_id;
}
const String& FilesystemId() const {
DCHECK(!filesystem_id_.empty());
return filesystem_id_;
}
// Used to handle files (images) being dragged out.
void AddFileSharedBuffer(scoped_refptr<SharedBuffer>,
bool is_accessible_from_start_frame,
const KURL&,
const String& filename_extension,
const AtomicString& content_disposition);
int GetModifiers() const { return modifiers_; }
void SetModifiers(int modifiers) { modifiers_ = modifiers; }
// Adds an observer (and retains a reference to it) that is notified
// whenever the underlying item_list_ changes.
void AddObserver(Observer*);
void Trace(Visitor*) const override;
WebDragData ToWebDragData();
private:
DataObjectItem* FindStringItem(const String& type) const;
bool InternalAddStringItem(DataObjectItem*);
void InternalAddFileItem(DataObjectItem*);
void NotifyItemListChanged() const;
HeapVector<Member<DataObjectItem>> item_list_;
HeapHashSet<Member<Observer>> observers_;
// State of Shift/Ctrl/Alt/Meta keys and Left/Right/Middle mouse buttons
int modifiers_;
String filesystem_id_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_CLIPBOARD_DATA_OBJECT_H_
|
