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 ENABLE(FILE_SYSTEM) 35 36 #include "AsyncFileSystem.h" 37 #include "ErrorCallback.h" 38 #include "FileSystemCallback.h" 39 #include "FileSystemCallbacks.h" 40 #include "PlatformString.h" 41 #include "WebFileSystem.h" 42 #include "WebFileSystemCallbacksImpl.h" 43 #include "WebFrameClient.h" 44 #include "WebFrameImpl.h" 45 #include "WebWorkerImpl.h" 46 #include "WorkerContext.h" 47 #include "WorkerThread.h" 48 #include <wtf/Threading.h> 49 50 using namespace WebKit; 51 52 namespace WebCore { 53 54 LocalFileSystem& LocalFileSystem::localFileSystem() 55 { 56 AtomicallyInitializedStatic(LocalFileSystem*, localFileSystem = new LocalFileSystem("")); 57 return *localFileSystem; 58 } 59 60 namespace { 61 62 enum CreationFlag { 63 OpenExisting, 64 CreateIfNotPresent 65 }; 66 67 } // namespace 68 69 static void openFileSystemHelper(ScriptExecutionContext* context, AsyncFileSystem::Type type, PassOwnPtr<AsyncFileSystemCallbacks> callbacks, bool synchronous, long long size, CreationFlag create) 70 { 71 ASSERT(context); 72 if (context->isDocument()) { 73 Document* document = static_cast<Document*>(context); 74 WebFrameImpl* webFrame = WebFrameImpl::fromFrame(document->frame()); 75 webFrame->client()->openFileSystem(webFrame, static_cast<WebFileSystem::Type>(type), size, create == CreateIfNotPresent, new WebFileSystemCallbacksImpl(callbacks, type)); 76 } else { 77 WorkerContext* workerContext = static_cast<WorkerContext*>(context); 78 WorkerLoaderProxy* workerLoaderProxy = &workerContext->thread()->workerLoaderProxy(); 79 WebWorkerBase* webWorker = static_cast<WebWorkerBase*>(workerLoaderProxy); 80 webWorker->openFileSystemForWorker(static_cast<WebFileSystem::Type>(type), size, create == CreateIfNotPresent, new WebFileSystemCallbacksImpl(callbacks, type, context, synchronous), synchronous); 81 } 82 } 83 84 void LocalFileSystem::readFileSystem(ScriptExecutionContext* context, AsyncFileSystem::Type type, PassOwnPtr<AsyncFileSystemCallbacks> callbacks, bool synchronous) 85 { 86 openFileSystemHelper(context, type, callbacks, synchronous, 0, OpenExisting); 87 } 88 89 void LocalFileSystem::requestFileSystem(ScriptExecutionContext* context, AsyncFileSystem::Type type, long long size, PassOwnPtr<AsyncFileSystemCallbacks> callbacks, bool synchronous) 90 { 91 openFileSystemHelper(context, type, callbacks, synchronous, size, CreateIfNotPresent); 92 } 93 94 } // namespace WebCore 95 96 #endif // ENABLE(FILE_SYSTEM) 97