1 | /* |
2 | * Copyright (C) 2011 Google Inc. All rights reserved. |
3 | * Copyright (C) 2017 Apple Inc. All rights reserved. |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions are |
7 | * met: |
8 | * |
9 | * * Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * * Redistributions in binary form must reproduce the above |
12 | * copyright notice, this list of conditions and the following disclaimer |
13 | * in the documentation and/or other materials provided with the |
14 | * distribution. |
15 | * * Neither the name of Google Inc. nor the names of its |
16 | * contributors may be used to endorse or promote products derived from |
17 | * this software without specific prior written permission. |
18 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
20 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
21 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
22 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
23 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
24 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
25 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
31 | |
32 | #include "config.h" |
33 | #include "DataTransferItem.h" |
34 | |
35 | #include "DOMFileSystem.h" |
36 | #include "DataTransferItemList.h" |
37 | #include "Document.h" |
38 | #include "File.h" |
39 | #include "FileSystemDirectoryEntry.h" |
40 | #include "FileSystemFileEntry.h" |
41 | #include "ScriptExecutionContext.h" |
42 | #include "StringCallback.h" |
43 | #include <wtf/FileSystem.h> |
44 | |
45 | namespace WebCore { |
46 | |
47 | Ref<DataTransferItem> DataTransferItem::create(WeakPtr<DataTransferItemList>&& list, const String& type) |
48 | { |
49 | return adoptRef(*new DataTransferItem(WTFMove(list), type)); |
50 | } |
51 | |
52 | Ref<DataTransferItem> DataTransferItem::create(WeakPtr<DataTransferItemList>&& list, const String& type, Ref<File>&& file) |
53 | { |
54 | return adoptRef(*new DataTransferItem(WTFMove(list), type, WTFMove(file))); |
55 | } |
56 | |
57 | DataTransferItem::DataTransferItem(WeakPtr<DataTransferItemList>&& list, const String& type) |
58 | : m_list(WTFMove(list)) |
59 | , m_type(type) |
60 | { |
61 | } |
62 | |
63 | DataTransferItem::DataTransferItem(WeakPtr<DataTransferItemList>&& list, const String& type, Ref<File>&& file) |
64 | : m_list(WTFMove(list)) |
65 | , m_type(type) |
66 | , m_file(WTFMove(file)) |
67 | { |
68 | } |
69 | |
70 | DataTransferItem::~DataTransferItem() = default; |
71 | |
72 | void DataTransferItem::clearListAndPutIntoDisabledMode() |
73 | { |
74 | m_list.clear(); |
75 | } |
76 | |
77 | String DataTransferItem::kind() const |
78 | { |
79 | return m_file ? "file"_s : "string"_s ; |
80 | } |
81 | |
82 | String DataTransferItem::type() const |
83 | { |
84 | return isInDisabledMode() ? String() : m_type; |
85 | } |
86 | |
87 | void DataTransferItem::getAsString(Document& document, RefPtr<StringCallback>&& callback) const |
88 | { |
89 | if (!callback || !m_list || m_file) |
90 | return; |
91 | |
92 | auto& dataTransfer = m_list->dataTransfer(); |
93 | if (!dataTransfer.canReadData()) |
94 | return; |
95 | |
96 | // FIXME: Make this async. |
97 | callback->scheduleCallback(document, dataTransfer.getDataForItem(document, m_type)); |
98 | } |
99 | |
100 | RefPtr<File> DataTransferItem::getAsFile() const |
101 | { |
102 | if (!m_list || !m_list->dataTransfer().canReadData()) |
103 | return nullptr; |
104 | return m_file.copyRef(); |
105 | } |
106 | |
107 | RefPtr<FileSystemEntry> DataTransferItem::getAsEntry(ScriptExecutionContext& context) const |
108 | { |
109 | auto file = getAsFile(); |
110 | if (!file) |
111 | return nullptr; |
112 | |
113 | return DOMFileSystem::createEntryForFile(context, *file); |
114 | } |
115 | |
116 | } // namespace WebCore |
117 | |