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 #ifndef WebWorkerImpl_h 32 #define WebWorkerImpl_h 33 34 #include "WebWorker.h" 35 36 #if ENABLE(WORKERS) 37 38 #include "ScriptExecutionContext.h" 39 40 #include "WebWorkerBase.h" 41 42 namespace WebKit { 43 class WebView; 44 45 // This class is used by the worker process code to talk to the WebCore::Worker 46 // implementation. It can't use it directly since it uses WebKit types, so this 47 // class converts the data types. When the WebCore::Worker object wants to call 48 // WebCore::WorkerObjectProxy, this class will conver to Chrome data types first 49 // and then call the supplied WebWorkerClient. 50 class WebWorkerImpl : public WebWorkerBase, public WebWorker { 51 public: 52 explicit WebWorkerImpl(WebWorkerClient* client); 53 54 // WebWorker methods: 55 virtual void startWorkerContext(const WebURL&, const WebString&, const WebString&); 56 virtual void terminateWorkerContext(); 57 virtual void postMessageToWorkerContext(const WebString&, const WebMessagePortChannelArray&); 58 virtual void workerObjectDestroyed(); 59 virtual void clientDestroyed(); 60 61 // WebWorkerBase methods: client()62 virtual WebWorkerClient* client() { return m_client; } 63 virtual WebCommonWorkerClient* commonClient(); 64 65 private: 66 virtual ~WebWorkerImpl(); 67 68 // Tasks that are run on the worker thread. 69 static void postMessageToWorkerContextTask( 70 WebCore::ScriptExecutionContext* context, 71 WebWorkerImpl* thisPtr, 72 const WebCore::String& message, 73 PassOwnPtr<WebCore::MessagePortChannelArray> channels); 74 75 WebWorkerClient* m_client; 76 77 }; 78 79 } // namespace WebKit 80 81 #endif // ENABLE(WORKERS) 82 83 #endif 84