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      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 ServiceWorkerGlobalScopeProxy_h
     32 #define ServiceWorkerGlobalScopeProxy_h
     33 
     34 #include "WebServiceWorkerContextProxy.h"
     35 #include "core/workers/WorkerReportingProxy.h"
     36 #include "wtf/Forward.h"
     37 #include "wtf/OwnPtr.h"
     38 
     39 namespace WebCore {
     40 class ExecutionContext;
     41 }
     42 
     43 namespace blink {
     44 
     45 class WebEmbeddedWorkerImpl;
     46 class WebServiceWorkerContextClient;
     47 
     48 // This class is created and destructed on the main thread, but live most
     49 // of its time as a resident of the worker thread.
     50 // All methods other than its ctor/dtor are called on the worker thread.
     51 //
     52 // This implements WebServiceWorkerContextProxy, which connects ServiceWorker's
     53 // WorkerGlobalScope and embedder/chrome, and implements ServiceWorker-specific
     54 // events/upcall methods that are to be called by embedder/chromium,
     55 // e.g. onfetch.
     56 //
     57 // An instance of this class is supposed to outlive until
     58 // workerGlobalScopeDestroyed() is called by its corresponding
     59 // WorkerGlobalScope.
     60 class ServiceWorkerGlobalScopeProxy :
     61     public WebServiceWorkerContextProxy,
     62     public WebCore::WorkerReportingProxy {
     63     WTF_MAKE_NONCOPYABLE(ServiceWorkerGlobalScopeProxy);
     64 public:
     65     static PassOwnPtr<ServiceWorkerGlobalScopeProxy> create(WebEmbeddedWorkerImpl&, WebCore::ExecutionContext&, PassOwnPtr<WebServiceWorkerContextClient>);
     66     virtual ~ServiceWorkerGlobalScopeProxy();
     67 
     68     // WorkerReportingProxy overrides:
     69     virtual void reportException(const String& errorMessage, int lineNumber, int columnNumber, const String& sourceURL) OVERRIDE;
     70     virtual void reportConsoleMessage(WebCore::MessageSource, WebCore::MessageLevel, const String& message, int lineNumber, const String& sourceURL) OVERRIDE;
     71     virtual void postMessageToPageInspector(const String&) OVERRIDE;
     72     virtual void updateInspectorStateCookie(const String&) OVERRIDE;
     73     virtual void workerGlobalScopeStarted() OVERRIDE;
     74     virtual void workerGlobalScopeClosed() OVERRIDE;
     75     virtual void workerGlobalScopeDestroyed() OVERRIDE;
     76 
     77 private:
     78     ServiceWorkerGlobalScopeProxy(WebEmbeddedWorkerImpl&, WebCore::ExecutionContext&, PassOwnPtr<WebServiceWorkerContextClient>);
     79 
     80     WebEmbeddedWorkerImpl& m_embeddedWorker;
     81     WebCore::ExecutionContext& m_executionContext;
     82 
     83     OwnPtr<WebServiceWorkerContextClient> m_client;
     84 };
     85 
     86 } // namespace blink
     87 
     88 #endif // ServiceWorkerGlobalScopeProxy_h
     89