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
40namespace blink {
41
42DEFINE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(DataTransferItem);
43
44PassRefPtrWillBeRawPtr<DataTransferItem> DataTransferItem::create(PassRefPtrWillBeRawPtr<DataTransfer> dataTransfer, PassRefPtrWillBeRawPtr<DataObjectItem> item)
45{
46    return adoptRefWillBeNoop(new DataTransferItem(dataTransfer, item));
47}
48
49String 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
65String DataTransferItem::type() const
66{
67    if (!m_dataTransfer->canReadTypes())
68        return String();
69    return m_item->type();
70}
71
72void 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
82PassRefPtrWillBeRawPtr<Blob> DataTransferItem::getAsFile() const
83{
84    if (!m_dataTransfer->canReadData())
85        return nullptr;
86
87    return m_item->getAsFile();
88}
89
90DataTransferItem::DataTransferItem(PassRefPtrWillBeRawPtr<DataTransfer> dataTransfer, PassRefPtrWillBeRawPtr<DataObjectItem> item)
91    : m_dataTransfer(dataTransfer)
92    , m_item(item)
93{
94}
95
96void DataTransferItem::trace(Visitor* visitor)
97{
98    visitor->trace(m_dataTransfer);
99    visitor->trace(m_item);
100}
101
102} // namespace blink
103
104