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      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_FETCH_DISPATCHER_H_
      6 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_FETCH_DISPATCHER_H_
      7 
      8 #include "base/basictypes.h"
      9 #include "base/callback.h"
     10 #include "base/memory/weak_ptr.h"
     11 #include "content/common/service_worker/service_worker_status_code.h"
     12 #include "content/common/service_worker/service_worker_types.h"
     13 
     14 namespace net {
     15 class URLRequest;
     16 }
     17 
     18 namespace content {
     19 
     20 class ServiceWorkerVersion;
     21 
     22 // A helper class to dispatch fetch event to a service worker.
     23 class ServiceWorkerFetchDispatcher {
     24  public:
     25   typedef base::Callback<void(ServiceWorkerStatusCode,
     26                               ServiceWorkerFetchEventResult,
     27                               const ServiceWorkerResponse&)> FetchCallback;
     28 
     29   ServiceWorkerFetchDispatcher(
     30       net::URLRequest* request,
     31       ServiceWorkerVersion* version,
     32       const FetchCallback& callback);
     33   ~ServiceWorkerFetchDispatcher();
     34 
     35   // Dispatches a fetch event to the |version| given in ctor, and fires
     36   // |callback| (also given in ctor) when finishes.
     37   void Run();
     38 
     39  private:
     40   void DidWaitActivation();
     41   void DidFailActivation();
     42   void DispatchFetchEvent();
     43   void DidFinish(ServiceWorkerStatusCode status,
     44                  ServiceWorkerFetchEventResult fetch_result,
     45                  const ServiceWorkerResponse& response);
     46 
     47   scoped_refptr<ServiceWorkerVersion> version_;
     48   FetchCallback callback_;
     49   ServiceWorkerFetchRequest request_;
     50   base::WeakPtrFactory<ServiceWorkerFetchDispatcher> weak_factory_;
     51 
     52   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerFetchDispatcher);
     53 };
     54 
     55 }  // namespace content
     56 
     57 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_FETCH_DISPATCHER_H_
     58