1/*
2 * Copyright (C) 2010 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 "modules/filesystem/FileSystemCallbacks.h"
33
34#include "core/dom/ExecutionContext.h"
35#include "core/fileapi/FileError.h"
36#include "core/html/VoidCallback.h"
37#include "modules/filesystem/DOMFilePath.h"
38#include "modules/filesystem/DOMFileSystemBase.h"
39#include "modules/filesystem/DirectoryEntry.h"
40#include "modules/filesystem/DirectoryReader.h"
41#include "modules/filesystem/Entry.h"
42#include "modules/filesystem/EntryCallback.h"
43#include "modules/filesystem/ErrorCallback.h"
44#include "modules/filesystem/FileEntry.h"
45#include "modules/filesystem/FileSystemCallback.h"
46#include "modules/filesystem/FileWriterBase.h"
47#include "modules/filesystem/FileWriterBaseCallback.h"
48#include "modules/filesystem/Metadata.h"
49#include "modules/filesystem/MetadataCallback.h"
50#include "platform/FileMetadata.h"
51#include "public/platform/WebFileWriter.h"
52
53namespace WebCore {
54
55FileSystemCallbacksBase::FileSystemCallbacksBase(PassOwnPtr<ErrorCallback> errorCallback, DOMFileSystemBase* fileSystem)
56    : m_errorCallback(errorCallback)
57    , m_fileSystem(fileSystem)
58{
59    if (m_fileSystem)
60        m_fileSystem->addPendingCallbacks();
61}
62
63FileSystemCallbacksBase::~FileSystemCallbacksBase()
64{
65    if (m_fileSystem)
66        m_fileSystem->removePendingCallbacks();
67}
68
69void FileSystemCallbacksBase::didFail(int code)
70{
71    if (m_errorCallback) {
72        m_errorCallback->handleEvent(FileError::create(static_cast<FileError::ErrorCode>(code)).get());
73        m_errorCallback.clear();
74    }
75}
76
77// EntryCallbacks -------------------------------------------------------------
78
79PassOwnPtr<AsyncFileSystemCallbacks> EntryCallbacks::create(PassOwnPtr<EntryCallback> successCallback, PassOwnPtr<ErrorCallback> errorCallback, PassRefPtr<DOMFileSystemBase> fileSystem, const String& expectedPath, bool isDirectory)
80{
81    return adoptPtr(new EntryCallbacks(successCallback, errorCallback, fileSystem, expectedPath, isDirectory));
82}
83
84EntryCallbacks::EntryCallbacks(PassOwnPtr<EntryCallback> successCallback, PassOwnPtr<ErrorCallback> errorCallback, PassRefPtr<DOMFileSystemBase> fileSystem, const String& expectedPath, bool isDirectory)
85    : FileSystemCallbacksBase(errorCallback, fileSystem.get())
86    , m_successCallback(successCallback)
87    , m_expectedPath(expectedPath)
88    , m_isDirectory(isDirectory)
89{
90}
91
92void EntryCallbacks::didSucceed()
93{
94    if (m_successCallback) {
95        if (m_isDirectory)
96            m_successCallback->handleEvent(DirectoryEntry::create(m_fileSystem, m_expectedPath).get());
97        else
98            m_successCallback->handleEvent(FileEntry::create(m_fileSystem, m_expectedPath).get());
99    }
100    m_successCallback.clear();
101}
102
103// EntriesCallbacks -----------------------------------------------------------
104
105PassOwnPtr<AsyncFileSystemCallbacks> EntriesCallbacks::create(PassOwnPtr<EntriesCallback> successCallback, PassOwnPtr<ErrorCallback> errorCallback, PassRefPtr<DirectoryReaderBase> directoryReader, const String& basePath)
106{
107    return adoptPtr(new EntriesCallbacks(successCallback, errorCallback, directoryReader, basePath));
108}
109
110EntriesCallbacks::EntriesCallbacks(PassOwnPtr<EntriesCallback> successCallback, PassOwnPtr<ErrorCallback> errorCallback, PassRefPtr<DirectoryReaderBase> directoryReader, const String& basePath)
111    : FileSystemCallbacksBase(errorCallback, directoryReader->filesystem())
112    , m_successCallback(successCallback)
113    , m_directoryReader(directoryReader)
114    , m_basePath(basePath)
115{
116    ASSERT(m_directoryReader);
117}
118
119void EntriesCallbacks::didReadDirectoryEntry(const String& name, bool isDirectory)
120{
121    if (isDirectory)
122        m_entries.append(DirectoryEntry::create(m_directoryReader->filesystem(), DOMFilePath::append(m_basePath, name)));
123    else
124        m_entries.append(FileEntry::create(m_directoryReader->filesystem(), DOMFilePath::append(m_basePath, name)));
125}
126
127void EntriesCallbacks::didReadDirectoryEntries(bool hasMore)
128{
129    m_directoryReader->setHasMoreEntries(hasMore);
130    if (m_successCallback)
131        m_successCallback->handleEvent(m_entries);
132}
133
134// FileSystemCallbacks --------------------------------------------------------
135
136PassOwnPtr<AsyncFileSystemCallbacks> FileSystemCallbacks::create(PassOwnPtr<FileSystemCallback> successCallback, PassOwnPtr<ErrorCallback> errorCallback, ExecutionContext* executionContext, FileSystemType type)
137{
138    return adoptPtr(new FileSystemCallbacks(successCallback, errorCallback, executionContext, type));
139}
140
141FileSystemCallbacks::FileSystemCallbacks(PassOwnPtr<FileSystemCallback> successCallback, PassOwnPtr<ErrorCallback> errorCallback, ExecutionContext* context, FileSystemType type)
142    : FileSystemCallbacksBase(errorCallback, 0)
143    , m_successCallback(successCallback)
144    , m_executionContext(context)
145    , m_type(type)
146{
147}
148
149void FileSystemCallbacks::didOpenFileSystem(const String& name, const KURL& rootURL)
150{
151    if (m_successCallback) {
152        RefPtr<DOMFileSystem> fileSystem = DOMFileSystem::create(m_executionContext.get(), name, m_type, rootURL);
153        m_successCallback->handleEvent(fileSystem.get());
154        m_executionContext.clear();
155    }
156    m_successCallback.clear();
157}
158
159// ResolveURICallbacks --------------------------------------------------------
160
161PassOwnPtr<AsyncFileSystemCallbacks> ResolveURICallbacks::create(PassOwnPtr<EntryCallback> successCallback, PassOwnPtr<ErrorCallback> errorCallback, ExecutionContext* executionContext)
162{
163    return adoptPtr(new ResolveURICallbacks(successCallback, errorCallback, executionContext));
164}
165
166ResolveURICallbacks::ResolveURICallbacks(PassOwnPtr<EntryCallback> successCallback, PassOwnPtr<ErrorCallback> errorCallback, ExecutionContext* context)
167    : FileSystemCallbacksBase(errorCallback, 0)
168    , m_successCallback(successCallback)
169    , m_executionContext(context)
170{
171}
172
173void ResolveURICallbacks::didResolveURL(const String& name, const KURL& rootURL, FileSystemType type, const String& filePath, bool isDirectory)
174{
175    RefPtr<DOMFileSystem> filesystem = DOMFileSystem::create(m_executionContext.get(), name, type, rootURL);
176    RefPtr<DirectoryEntry> root = filesystem->root();
177
178    String absolutePath;
179    if (!DOMFileSystemBase::pathToAbsolutePath(type, root.get(), filePath, absolutePath)) {
180        m_errorCallback->handleEvent(FileError::create(FileError::INVALID_MODIFICATION_ERR).get());
181        m_errorCallback.clear();
182        return;
183    }
184
185    if (isDirectory)
186        m_successCallback->handleEvent(DirectoryEntry::create(filesystem, absolutePath).get());
187    else
188        m_successCallback->handleEvent(FileEntry::create(filesystem, absolutePath).get());
189    m_successCallback.clear();
190}
191
192// MetadataCallbacks ----------------------------------------------------------
193
194PassOwnPtr<AsyncFileSystemCallbacks> MetadataCallbacks::create(PassOwnPtr<MetadataCallback> successCallback, PassOwnPtr<ErrorCallback> errorCallback, DOMFileSystemBase* fileSystem)
195{
196    return adoptPtr(new MetadataCallbacks(successCallback, errorCallback, fileSystem));
197}
198
199MetadataCallbacks::MetadataCallbacks(PassOwnPtr<MetadataCallback> successCallback, PassOwnPtr<ErrorCallback> errorCallback, DOMFileSystemBase* fileSystem)
200    : FileSystemCallbacksBase(errorCallback, fileSystem)
201    , m_successCallback(successCallback)
202{
203}
204
205void MetadataCallbacks::didReadMetadata(const FileMetadata& metadata)
206{
207    if (m_successCallback)
208        m_successCallback->handleEvent(Metadata::create(metadata).get());
209    m_successCallback.clear();
210}
211
212// FileWriterBaseCallbacks ----------------------------------------------------------
213
214PassOwnPtr<AsyncFileSystemCallbacks> FileWriterBaseCallbacks::create(PassRefPtr<FileWriterBase> fileWriter, PassOwnPtr<FileWriterBaseCallback> successCallback, PassOwnPtr<ErrorCallback> errorCallback)
215{
216    return adoptPtr(new FileWriterBaseCallbacks(fileWriter, successCallback, errorCallback));
217}
218
219FileWriterBaseCallbacks::FileWriterBaseCallbacks(PassRefPtr<FileWriterBase> fileWriter, PassOwnPtr<FileWriterBaseCallback> successCallback, PassOwnPtr<ErrorCallback> errorCallback)
220    : FileSystemCallbacksBase(errorCallback, 0)
221    , m_fileWriter(fileWriter)
222    , m_successCallback(successCallback)
223{
224}
225
226void FileWriterBaseCallbacks::didCreateFileWriter(PassOwnPtr<blink::WebFileWriter> fileWriter, long long length)
227{
228    m_fileWriter->initialize(fileWriter, length);
229    if (m_successCallback)
230        m_successCallback->handleEvent(m_fileWriter.release().get());
231    m_successCallback.clear();
232}
233
234// VoidCallbacks --------------------------------------------------------------
235
236PassOwnPtr<AsyncFileSystemCallbacks> VoidCallbacks::create(PassOwnPtr<VoidCallback> successCallback, PassOwnPtr<ErrorCallback> errorCallback, DOMFileSystemBase* fileSystem)
237{
238    return adoptPtr(new VoidCallbacks(successCallback, errorCallback, fileSystem));
239}
240
241VoidCallbacks::VoidCallbacks(PassOwnPtr<VoidCallback> successCallback, PassOwnPtr<ErrorCallback> errorCallback, DOMFileSystemBase* fileSystem)
242    : FileSystemCallbacksBase(errorCallback, fileSystem)
243    , m_successCallback(successCallback)
244{
245}
246
247void VoidCallbacks::didSucceed()
248{
249    if (m_successCallback)
250        m_successCallback->handleEvent();
251    m_successCallback.clear();
252}
253
254} // namespace
255