content/browser/service_worker/service_worker_fetch_dispatcher.h

   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 content {
  15
  16 class ServiceWorkerVersion;
  17
  18 // A helper class to dispatch fetch event to a service worker.
  19 class ServiceWorkerFetchDispatcher {
  20  public:
  21   typedef base::Callback<void(ServiceWorkerStatusCode,
  22                               ServiceWorkerFetchEventResult,
  23                               const ServiceWorkerResponse&,
  24                               scoped_refptr<ServiceWorkerVersion>)>
  25       FetchCallback;
  26
  27   ServiceWorkerFetchDispatcher(scoped_ptr<ServiceWorkerFetchRequest> request,
  28                                ServiceWorkerVersion* version,
  29                                const base::Closure& prepare_callback,
  30                                const FetchCallback& fetch_callback);
  31   ~ServiceWorkerFetchDispatcher();
  32
  33   // Dispatches a fetch event to the |version| given in ctor, and fires
  34   // |callback| (also given in ctor) when finishes.
  35   void Run();
  36
  37  private:
  38   void DidWaitActivation();
  39   void DidFailActivation();
  40   void DispatchFetchEvent();
  41   void DidPrepare();
  42   void DidFinish(ServiceWorkerStatusCode status,
  43                  ServiceWorkerFetchEventResult fetch_result,
  44                  const ServiceWorkerResponse& response);
  45
  46   scoped_refptr<ServiceWorkerVersion> version_;
  47   base::Closure prepare_callback_;
  48   FetchCallback fetch_callback_;
  49   scoped_ptr<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_