1/*
2 * Copyright (C) 2009 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
33#include "core/dom/DataTransferItem.h"
34#include "core/platform/chromium/ChromiumDataObject.h"
35#include "core/platform/chromium/ClipboardMimeTypes.h"
36#include "modules/filesystem/DraggedIsolatedFileSystem.h"
37#include "public/platform/WebData.h"
38#include "public/platform/WebDragData.h"
39#include "public/platform/WebString.h"
40#include "public/platform/WebURL.h"
41#include "public/platform/WebVector.h"
42#include "wtf/HashMap.h"
43#include "wtf/PassRefPtr.h"
44
45using namespace WebCore;
46
47namespace WebKit {
48
49class WebDragDataPrivate : public ChromiumDataObject {
50};
51
52void WebDragData::initialize()
53{
54    assign(static_cast<WebDragDataPrivate*>(ChromiumDataObject::create().leakRef()));
55}
56
57void WebDragData::reset()
58{
59    assign(0);
60}
61
62void WebDragData::assign(const WebDragData& other)
63{
64    WebDragDataPrivate* p = const_cast<WebDragDataPrivate*>(other.m_private);
65    if (p)
66        p->ref();
67    assign(p);
68}
69
70WebVector<WebDragData::Item> WebDragData::items() const
71{
72    Vector<Item> itemList;
73    for (size_t i = 0; i < m_private->length(); ++i) {
74        ChromiumDataObjectItem* originalItem = m_private->item(i).get();
75        WebDragData::Item item;
76        if (originalItem->kind() == DataTransferItem::kindString) {
77            item.storageType = Item::StorageTypeString;
78            item.stringType = originalItem->type();
79            item.stringData = originalItem->internalGetAsString();
80        } else if (originalItem->kind() == DataTransferItem::kindFile) {
81            if (originalItem->sharedBuffer()) {
82                item.storageType = Item::StorageTypeBinaryData;
83                item.binaryData = originalItem->sharedBuffer();
84            } else if (originalItem->isFilename()) {
85                item.storageType = Item::StorageTypeFilename;
86                RefPtr<WebCore::Blob> blob = originalItem->getAsFile();
87                if (blob->isFile()) {
88                    File* file = toFile(blob.get());
89                    item.filenameData = file->path();
90                    item.displayNameData = file->name();
91                } else
92                    ASSERT_NOT_REACHED();
93            } else
94                ASSERT_NOT_REACHED();
95        } else
96            ASSERT_NOT_REACHED();
97        item.title = originalItem->title();
98        item.baseURL = originalItem->baseURL();
99        itemList.append(item);
100    }
101    return itemList;
102}
103
104void WebDragData::setItems(const WebVector<Item>& itemList)
105{
106    m_private->clearAll();
107    for (size_t i = 0; i < itemList.size(); ++i)
108        addItem(itemList[i]);
109}
110
111void WebDragData::addItem(const Item& item)
112{
113    ensureMutable();
114    switch (item.storageType) {
115    case Item::StorageTypeString:
116        if (String(item.stringType) == mimeTypeTextURIList)
117            m_private->setURLAndTitle(item.stringData, item.title);
118        else if (String(item.stringType) == mimeTypeTextHTML)
119            m_private->setHTMLAndBaseURL(item.stringData, item.baseURL);
120        else
121            m_private->setData(item.stringType, item.stringData);
122        return;
123    case Item::StorageTypeFilename:
124        m_private->addFilename(item.filenameData, item.displayNameData);
125        return;
126    case Item::StorageTypeBinaryData:
127        // This should never happen when dragging in.
128        ASSERT_NOT_REACHED();
129    }
130}
131
132WebString WebDragData::filesystemId() const
133{
134    ASSERT(!isNull());
135    DraggedIsolatedFileSystem* filesystem = DraggedIsolatedFileSystem::from(m_private);
136    if (filesystem)
137        return filesystem->filesystemId();
138    return WebString();
139}
140
141void WebDragData::setFilesystemId(const WebString& filesystemId)
142{
143    // The ID is an opaque string, given by and validated by chromium port.
144    ensureMutable();
145    DraggedIsolatedFileSystem::provideTo(m_private, DraggedIsolatedFileSystem::supplementName(), DraggedIsolatedFileSystem::create(filesystemId));
146}
147
148WebDragData::WebDragData(const WTF::PassRefPtr<WebCore::ChromiumDataObject>& data)
149    : m_private(static_cast<WebDragDataPrivate*>(data.leakRef()))
150{
151}
152
153WebDragData& WebDragData::operator=(const WTF::PassRefPtr<WebCore::ChromiumDataObject>& data)
154{
155    assign(static_cast<WebDragDataPrivate*>(data.leakRef()));
156    return *this;
157}
158
159WebDragData::operator WTF::PassRefPtr<WebCore::ChromiumDataObject>() const
160{
161    return PassRefPtr<ChromiumDataObject>(const_cast<WebDragDataPrivate*>(m_private));
162}
163
164void WebDragData::assign(WebDragDataPrivate* p)
165{
166    // p is already ref'd for us by the caller
167    if (m_private)
168        m_private->deref();
169    m_private = p;
170}
171
172void WebDragData::ensureMutable()
173{
174    ASSERT(!isNull());
175    ASSERT(m_private->hasOneRef());
176}
177
178} // namespace WebKit
179