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 WebServiceWorkerContextClient_h 32 #define WebServiceWorkerContextClient_h 33 34 #include "WebWorkerPermissionClientProxy.h" 35 36 namespace blink { 37 38 class WebString; 39 class WebServiceWorkerContextProxy; 40 41 // This interface is implemented by the client. It is suppoed to be created 42 // on the main thread and then passed on to the worker thread to be owned 43 // by a newly created WorkerGlobalScope. All methods of this class, except 44 // for workerContextFailedToStart(), are called on the worker thread. 45 class WebServiceWorkerContextClient { 46 public: 47 virtual ~WebServiceWorkerContextClient() { } 48 49 // A new WorkerGlobalScope is created and started to run on the 50 // worker thread. 51 // This also gives back a proxy to the client to talk to the 52 // newly created WorkerGlobalScope. The proxy is held by WorkerGlobalScope 53 // and should not be held by the caller. No proxy methods should be called 54 // after workerContextDestroyed() is called. 55 virtual void workerContextStarted(WebServiceWorkerContextProxy*) { } 56 57 // WorkerGlobalScope is destroyed. The client should clear the 58 // WebServiceWorkerGlobalScopeProxy when this is called. 59 virtual void workerContextDestroyed() { } 60 61 // Starting worker context is failed. This could happen when loading 62 // worker script fails, or is asked to terminated before the context starts. 63 // This is called on the main thread. 64 virtual void workerContextFailedToStart() { } 65 66 virtual void dispatchDevToolsMessage(const WebString&) { } 67 virtual void saveDevToolsAgentState(const WebString&) { } 68 }; 69 70 } // namespace blink 71 72 #endif // WebWorkerContextClient_h 73
