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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 "core/workers/WorkerReportingProxy.h"
     35 #include "public/platform/WebString.h"
     36 #include "public/web/WebServiceWorkerContextProxy.h"
     37 #include "wtf/Forward.h"
     38 #include "wtf/OwnPtr.h"
     39 
     40 namespace WebCore {
     41 class ExecutionContext;
     42 }
     43 
     44 namespace blink {
     45 
     46 class WebEmbeddedWorkerImpl;
     47 class WebServiceWorkerContextClient;
     48 class WebServiceWorkerRequest;
     49 
     50 // This class is created and destructed on the main thread, but live most
     51 // of its time as a resident of the worker thread.
     52 // All methods other than its ctor/dtor are called on the worker thread.
     53 //
     54 // This implements WebServiceWorkerContextProxy, which connects ServiceWorker's
     55 // WorkerGlobalScope and embedder/chrome, and implements ServiceWorker-specific
     56 // events/upcall methods that are to be called by embedder/chromium,
     57 // e.g. onfetch.
     58 //
     59 // An instance of this class is supposed to outlive until
     60 // workerGlobalScopeDestroyed() is called by its corresponding
     61 // WorkerGlobalScope.
     62 class ServiceWorkerGlobalScopeProxy FINAL :
     63     public WebServiceWorkerContextProxy,
     64     public WebCore::WorkerReportingProxy {
     65     WTF_MAKE_NONCOPYABLE(ServiceWorkerGlobalScopeProxy);
     66 public:
     67     static PassOwnPtr<ServiceWorkerGlobalScopeProxy> create(WebEmbeddedWorkerImpl&, WebCore::ExecutionContext&, WebServiceWorkerContextClient&);
     68     virtual ~ServiceWorkerGlobalScopeProxy();
     69 
     70     // WebServiceWorkerContextProxy overrides:
     71     virtual void dispatchActivateEvent(int) OVERRIDE;
     72     virtual void dispatchInstallEvent(int) OVERRIDE;
     73     virtual void dispatchFetchEvent(int, const WebServiceWorkerRequest&) OVERRIDE;
     74     virtual void dispatchMessageEvent(const WebString& message, const WebMessagePortChannelArray&) OVERRIDE;
     75     virtual void dispatchPushEvent(int, const WebString& data) OVERRIDE;
     76     virtual void dispatchSyncEvent(int) OVERRIDE;
     77 
     78     // WorkerReportingProxy overrides:
     79     virtual void reportException(const String& errorMessage, int lineNumber, int columnNumber, const String& sourceURL) OVERRIDE;
     80     virtual void reportConsoleMessage(WebCore::MessageSource, WebCore::MessageLevel, const String& message, int lineNumber, const String& sourceURL) OVERRIDE;
     81     virtual void postMessageToPageInspector(const String&) OVERRIDE;
     82     virtual void updateInspectorStateCookie(const String&) OVERRIDE;
     83     virtual void workerGlobalScopeStarted(WebCore::WorkerGlobalScope*) OVERRIDE;
     84     virtual void workerGlobalScopeClosed() OVERRIDE;
     85     virtual void willDestroyWorkerGlobalScope() OVERRIDE;
     86     virtual void workerGlobalScopeDestroyed() OVERRIDE;
     87 
     88 private:
     89     ServiceWorkerGlobalScopeProxy(WebEmbeddedWorkerImpl&, WebCore::ExecutionContext&, WebServiceWorkerContextClient&);
     90 
     91     WebEmbeddedWorkerImpl& m_embeddedWorker;
     92     WebCore::ExecutionContext& m_executionContext;
     93 
     94     WebServiceWorkerContextClient& m_client;
     95 
     96     WebCore::WorkerGlobalScope* m_workerGlobalScope;
     97 };
     98 
     99 } // namespace blink
    100 
    101 #endif // ServiceWorkerGlobalScopeProxy_h
    102