| /* |
| * Copyright (C) 2013 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "WorkerFileSystemClient.h" |
| |
| #include "WebWorkerBase.h" |
| #include "WorkerAllowMainThreadBridgeBase.h" |
| #include "core/dom/ScriptExecutionContext.h" |
| #include "core/platform/AsyncFileSystemCallbacks.h" |
| #include "core/workers/WorkerGlobalScope.h" |
| #include "core/workers/WorkerThread.h" |
| #include "public/platform/Platform.h" |
| #include "public/platform/WebFileError.h" |
| #include "public/platform/WebFileSystem.h" |
| #include "public/platform/WebFileSystemType.h" |
| #include "wtf/MainThread.h" |
| #include "wtf/Threading.h" |
| #include "wtf/text/WTFString.h" |
| |
| using namespace WebCore; |
| |
| namespace WebKit { |
| |
| namespace { |
| |
| // This class is used to route the result of the WebWorkerBase::allowFileSystem |
| // call back to the worker context. |
| class AllowFileSystemMainThreadBridge : public WorkerAllowMainThreadBridgeBase { |
| public: |
| static PassRefPtr<AllowFileSystemMainThreadBridge> create(WebCore::WorkerGlobalScope* workerGlobalScope, WebWorkerBase* webWorkerBase, const String& mode) |
| { |
| return adoptRef(new AllowFileSystemMainThreadBridge(workerGlobalScope, webWorkerBase, mode)); |
| } |
| |
| private: |
| AllowFileSystemMainThreadBridge(WebCore::WorkerGlobalScope* workerGlobalScope, WebWorkerBase* webWorkerBase, const String& mode) |
| : WorkerAllowMainThreadBridgeBase(workerGlobalScope, webWorkerBase) |
| { |
| postTaskToMainThread(adoptPtr(new AllowParams(mode))); |
| } |
| |
| virtual bool allowOnMainThread(WebCommonWorkerClient* commonClient, AllowParams*) |
| { |
| ASSERT(isMainThread()); |
| return commonClient->allowFileSystem(); |
| } |
| }; |
| |
| } // namespace |
| |
| PassOwnPtr<FileSystemClient> WorkerFileSystemClient::create() |
| { |
| return adoptPtr(static_cast<FileSystemClient*>(new WorkerFileSystemClient())); |
| } |
| |
| WorkerFileSystemClient::~WorkerFileSystemClient() |
| { |
| } |
| |
| bool WorkerFileSystemClient::allowFileSystem(ScriptExecutionContext* context) |
| { |
| WorkerGlobalScope* workerGlobalScope = toWorkerGlobalScope(context); |
| WebCore::WorkerThread* workerThread = workerGlobalScope->thread(); |
| WorkerRunLoop& runLoop = workerThread->runLoop(); |
| WebCore::WorkerLoaderProxy* workerLoaderProxy = &workerThread->workerLoaderProxy(); |
| |
| String mode = "allowFileSystemMode"; |
| mode.append(String::number(runLoop.createUniqueId())); |
| |
| RefPtr<AllowFileSystemMainThreadBridge> bridge = AllowFileSystemMainThreadBridge::create(workerGlobalScope, workerLoaderProxy->toWebWorkerBase(), mode); |
| |
| // Either the bridge returns, or the queue gets terminated. |
| // FIXME: This synchoronous execution should be replaced with better model. |
| if (runLoop.runInMode(workerGlobalScope, mode) == MessageQueueTerminated) { |
| bridge->cancel(); |
| return false; |
| } |
| |
| return bridge->result(); |
| } |
| |
| WorkerFileSystemClient::WorkerFileSystemClient() |
| { |
| } |
| |
| } // namespace WebKit |