1 /* 2 * Copyright (C) 2013 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 WebEmbeddedWorkerImpl_h 32 #define WebEmbeddedWorkerImpl_h 33 34 #include "public/web/WebContentSecurityPolicy.h" 35 #include "public/web/WebEmbeddedWorker.h" 36 #include "public/web/WebEmbeddedWorkerStartData.h" 37 #include "public/web/WebFrameClient.h" 38 39 namespace WebCore { 40 class WorkerScriptLoader; 41 class WorkerThread; 42 } 43 44 namespace blink { 45 46 class ServiceWorkerGlobalScopeProxy; 47 class WebServiceWorkerNetworkProvider; 48 class WebView; 49 50 class WebEmbeddedWorkerImpl FINAL : 51 public WebEmbeddedWorker, 52 public WebFrameClient { 53 WTF_MAKE_NONCOPYABLE(WebEmbeddedWorkerImpl); 54 public: 55 WebEmbeddedWorkerImpl( 56 PassOwnPtr<WebServiceWorkerContextClient>, 57 PassOwnPtr<WebWorkerPermissionClientProxy>); 58 virtual ~WebEmbeddedWorkerImpl(); 59 60 // WebEmbeddedWorker overrides. 61 virtual void startWorkerContext(const WebEmbeddedWorkerStartData&) OVERRIDE; 62 virtual void resumeAfterDownload() OVERRIDE; 63 virtual void terminateWorkerContext() OVERRIDE; 64 virtual void resumeWorkerContext() OVERRIDE; 65 virtual void attachDevTools() OVERRIDE; 66 virtual void reattachDevTools(const WebString& savedState) OVERRIDE; 67 virtual void detachDevTools() OVERRIDE; 68 virtual void dispatchDevToolsMessage(const WebString&) OVERRIDE; 69 70 71 private: 72 class Loader; 73 class LoaderProxy; 74 75 void prepareShadowPageForLoader(); 76 77 // WebFrameClient overrides. 78 virtual void willSendRequest( 79 WebLocalFrame*, unsigned identifier, WebURLRequest&, 80 const WebURLResponse& redirectResponse) OVERRIDE; 81 virtual void didFinishDocumentLoad(WebLocalFrame*) OVERRIDE; 82 83 void onScriptLoaderFinished(); 84 void startWorkerThread(); 85 86 WebEmbeddedWorkerStartData m_workerStartData; 87 88 OwnPtr<WebServiceWorkerContextClient> m_workerContextClient; 89 90 // This is kept until startWorkerContext is called, and then passed on 91 // to WorkerContext. 92 OwnPtr<WebWorkerPermissionClientProxy> m_permissionClient; 93 94 // We retain ownership of this one which is for use on the 95 // main thread only. 96 OwnPtr<WebServiceWorkerNetworkProvider> m_networkProvider; 97 98 // Kept around only while main script loading is ongoing. 99 OwnPtr<Loader> m_mainScriptLoader; 100 101 RefPtr<WebCore::WorkerThread> m_workerThread; 102 OwnPtr<LoaderProxy> m_loaderProxy; 103 OwnPtr<ServiceWorkerGlobalScopeProxy> m_workerGlobalScopeProxy; 104 105 // 'shadow page' - created to proxy loading requests from the worker. 106 // Both WebView and WebFrame objects are close()'ed (where they're 107 // deref'ed) when this EmbeddedWorkerImpl is destructed, therefore they 108 // are guaranteed to exist while this object is around. 109 WebView* m_webView; 110 WebFrame* m_mainFrame; 111 112 bool m_askedToTerminate; 113 114 enum { 115 DontPauseAfterDownload, 116 DoPauseAfterDownload, 117 IsPausedAfterDownload 118 } m_pauseAfterDownloadState; 119 }; 120 121 } // namespace blink 122 123 #endif // WebEmbeddedWorkerImpl_h 124