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 "LocalFileSystem.h"
33
34#if PLATFORM(CHROMIUM)
35#error "Chromium should not compile this file and instead define its own version of these factories."
36#endif
37
38#if ENABLE(FILE_SYSTEM)
39
40#include "CrossThreadTask.h"
41#include "DOMFileSystem.h"
42#include "ErrorCallback.h"
43#include "ExceptionCode.h"
44#include "FileError.h"
45#include "FileSystemCallback.h"
46#include "FileSystemCallbacks.h"
47#include "ScriptExecutionContext.h"
48#include "SecurityOrigin.h"
49#include <wtf/PassRefPtr.h>
50
51namespace WebCore {
52
53LocalFileSystem* LocalFileSystem::s_instance = 0;
54
55void LocalFileSystem::initializeLocalFileSystem(const String& basePath)
56{
57    // FIXME: Should initialize the quota settings as well.
58    ASSERT(isMainThread());
59    ASSERT(!s_instance);
60    if (s_instance)
61        return;
62
63    OwnPtr<LocalFileSystem> localFileSystem = adoptPtr(new LocalFileSystem(basePath));
64    s_instance = localFileSystem.leakPtr();
65}
66
67LocalFileSystem& LocalFileSystem::localFileSystem()
68{
69    // initializeLocalFileSystem must be called prior calling this.
70    ASSERT(s_instance);
71    return *s_instance;
72}
73
74String LocalFileSystem::fileSystemBasePath() const
75{
76    return m_basePath;
77}
78
79static void openFileSystem(ScriptExecutionContext*, const String& basePath, const String& identifier, AsyncFileSystem::Type type, bool create, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
80{
81    AsyncFileSystem::openFileSystem(basePath, identifier, type, create, callbacks);
82}
83
84void LocalFileSystem::readFileSystem(ScriptExecutionContext* context, AsyncFileSystem::Type type, PassOwnPtr<AsyncFileSystemCallbacks> callbacks, bool)
85{
86    // AsyncFileSystem::openFileSystem calls callbacks synchronously, so the method needs to be called asynchronously.
87    context->postTask(createCallbackTask(&openFileSystem, fileSystemBasePath(), context->securityOrigin()->databaseIdentifier(), type, false, callbacks));
88}
89
90void LocalFileSystem::requestFileSystem(ScriptExecutionContext* context, AsyncFileSystem::Type type, long long, PassOwnPtr<AsyncFileSystemCallbacks> callbacks, bool)
91{
92    // AsyncFileSystem::openFileSystem calls callbacks synchronously, so the method needs to be called asynchronously.
93    context->postTask(createCallbackTask(&openFileSystem, fileSystemBasePath(), context->securityOrigin()->databaseIdentifier(), type, true, callbacks));
94}
95
96} // namespace
97
98#endif // ENABLE(FILE_SYSTEM)
99