1 /*
2 * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
3 * Copyright (C) 2008, 2009 Google Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 #include "config.h"
28 #include "core/clipboard/DataTransferItemList.h"
29
30 #include "bindings/core/v8/ExceptionState.h"
31 #include "core/clipboard/DataObject.h"
32 #include "core/clipboard/DataTransfer.h"
33 #include "core/clipboard/DataTransferItem.h"
34 #include "core/dom/ExceptionCode.h"
35
36 namespace blink {
37
38 DEFINE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(DataTransferItemList);
39
create(PassRefPtrWillBeRawPtr<DataTransfer> dataTransfer,PassRefPtrWillBeRawPtr<DataObject> list)40 PassRefPtrWillBeRawPtr<DataTransferItemList> DataTransferItemList::create(PassRefPtrWillBeRawPtr<DataTransfer> dataTransfer, PassRefPtrWillBeRawPtr<DataObject> list)
41 {
42 return adoptRefWillBeNoop(new DataTransferItemList(dataTransfer, list));
43 }
44
length() const45 size_t DataTransferItemList::length() const
46 {
47 if (!m_dataTransfer->canReadTypes())
48 return 0;
49 return m_dataObject->length();
50 }
51
item(unsigned long index)52 PassRefPtrWillBeRawPtr<DataTransferItem> DataTransferItemList::item(unsigned long index)
53 {
54 if (!m_dataTransfer->canReadTypes())
55 return nullptr;
56 RefPtrWillBeRawPtr<DataObjectItem> item = m_dataObject->item(index);
57 if (!item)
58 return nullptr;
59
60 return DataTransferItem::create(m_dataTransfer, item);
61 }
62
deleteItem(unsigned long index,ExceptionState & exceptionState)63 void DataTransferItemList::deleteItem(unsigned long index, ExceptionState& exceptionState)
64 {
65 if (!m_dataTransfer->canWriteData()) {
66 exceptionState.throwDOMException(InvalidStateError, "The list is not writable.");
67 return;
68 }
69 m_dataObject->deleteItem(index);
70 }
71
clear()72 void DataTransferItemList::clear()
73 {
74 if (!m_dataTransfer->canWriteData())
75 return;
76 m_dataObject->clearAll();
77 }
78
add(const String & data,const String & type,ExceptionState & exceptionState)79 PassRefPtrWillBeRawPtr<DataTransferItem> DataTransferItemList::add(const String& data, const String& type, ExceptionState& exceptionState)
80 {
81 if (!m_dataTransfer->canWriteData())
82 return nullptr;
83 RefPtrWillBeRawPtr<DataObjectItem> item = m_dataObject->add(data, type);
84 if (!item) {
85 exceptionState.throwDOMException(NotSupportedError, "An item already exists for type '" + type + "'.");
86 return nullptr;
87 }
88 return DataTransferItem::create(m_dataTransfer, item);
89 }
90
add(PassRefPtrWillBeRawPtr<File> file)91 PassRefPtrWillBeRawPtr<DataTransferItem> DataTransferItemList::add(PassRefPtrWillBeRawPtr<File> file)
92 {
93 if (!m_dataTransfer->canWriteData())
94 return nullptr;
95 RefPtrWillBeRawPtr<DataObjectItem> item = m_dataObject->add(file);
96 if (!item)
97 return nullptr;
98 return DataTransferItem::create(m_dataTransfer, item);
99 }
100
DataTransferItemList(PassRefPtrWillBeRawPtr<DataTransfer> dataTransfer,PassRefPtrWillBeRawPtr<DataObject> dataObject)101 DataTransferItemList::DataTransferItemList(PassRefPtrWillBeRawPtr<DataTransfer> dataTransfer, PassRefPtrWillBeRawPtr<DataObject> dataObject)
102 : m_dataTransfer(dataTransfer)
103 , m_dataObject(dataObject)
104 {
105 }
106
trace(Visitor * visitor)107 void DataTransferItemList::trace(Visitor* visitor)
108 {
109 visitor->trace(m_dataTransfer);
110 visitor->trace(m_dataObject);
111 }
112
113 } // namespace blink
114