1 /*
2 * Copyright (C) 2011 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "config.h"
32 #include "core/clipboard/DataTransferItem.h"
33
34 #include "bindings/core/v8/V8Binding.h"
35 #include "core/clipboard/DataObjectItem.h"
36 #include "core/clipboard/DataTransfer.h"
37 #include "core/dom/StringCallback.h"
38 #include "wtf/StdLibExtras.h"
39
40 namespace blink {
41
42 DEFINE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(DataTransferItem);
43
create(PassRefPtrWillBeRawPtr<DataTransfer> dataTransfer,PassRefPtrWillBeRawPtr<DataObjectItem> item)44 PassRefPtrWillBeRawPtr<DataTransferItem> DataTransferItem::create(PassRefPtrWillBeRawPtr<DataTransfer> dataTransfer, PassRefPtrWillBeRawPtr<DataObjectItem> item)
45 {
46 return adoptRefWillBeNoop(new DataTransferItem(dataTransfer, item));
47 }
48
kind() const49 String DataTransferItem::kind() const
50 {
51 DEFINE_STATIC_LOCAL(const String, kindString, ("string"));
52 DEFINE_STATIC_LOCAL(const String, kindFile, ("file"));
53 if (!m_dataTransfer->canReadTypes())
54 return String();
55 switch (m_item->kind()) {
56 case DataObjectItem::StringKind:
57 return kindString;
58 case DataObjectItem::FileKind:
59 return kindFile;
60 }
61 ASSERT_NOT_REACHED();
62 return String();
63 }
64
type() const65 String DataTransferItem::type() const
66 {
67 if (!m_dataTransfer->canReadTypes())
68 return String();
69 return m_item->type();
70 }
71
getAsString(ExecutionContext * context,StringCallback * callback) const72 void DataTransferItem::getAsString(ExecutionContext* context, StringCallback* callback) const
73 {
74 if (!m_dataTransfer->canReadData())
75 return;
76 if (!callback || m_item->kind() != DataObjectItem::StringKind)
77 return;
78
79 StringCallback::scheduleCallback(callback, context, m_item->getAsString(), "DataTransferItem.getAsString");
80 }
81
getAsFile() const82 PassRefPtrWillBeRawPtr<Blob> DataTransferItem::getAsFile() const
83 {
84 if (!m_dataTransfer->canReadData())
85 return nullptr;
86
87 return m_item->getAsFile();
88 }
89
DataTransferItem(PassRefPtrWillBeRawPtr<DataTransfer> dataTransfer,PassRefPtrWillBeRawPtr<DataObjectItem> item)90 DataTransferItem::DataTransferItem(PassRefPtrWillBeRawPtr<DataTransfer> dataTransfer, PassRefPtrWillBeRawPtr<DataObjectItem> item)
91 : m_dataTransfer(dataTransfer)
92 , m_item(item)
93 {
94 }
95
trace(Visitor * visitor)96 void DataTransferItem::trace(Visitor* visitor)
97 {
98 visitor->trace(m_dataTransfer);
99 visitor->trace(m_item);
100 }
101
102 } // namespace blink
103
104