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&)> FetchCallback;
  24
  25   ServiceWorkerFetchDispatcher(scoped_ptr<ServiceWorkerFetchRequest> request,
  26                                ServiceWorkerVersion* version,
  27                                const base::Closure& prepare_callback,
  28                                const FetchCallback& fetch_callback);
  29   ~ServiceWorkerFetchDispatcher();
  30
  31   // Dispatches a fetch event to the |version| given in ctor, and fires
  32   // |callback| (also given in ctor) when finishes.
  33   void Run();
  34
  35  private:
  36   void DidWaitActivation();
  37   void DidFailActivation();
  38   void DispatchFetchEvent();
  39   void DidPrepare();
  40   void DidFinish(ServiceWorkerStatusCode status,
  41                  ServiceWorkerFetchEventResult fetch_result,
  42                  const ServiceWorkerResponse& response);
  43
  44   scoped_refptr<ServiceWorkerVersion> version_;
  45   base::Closure prepare_callback_;
  46   FetchCallback fetch_callback_;
  47   scoped_ptr<ServiceWorkerFetchRequest> request_;
  48   base::WeakPtrFactory<ServiceWorkerFetchDispatcher> weak_factory_;
  49
  50   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerFetchDispatcher);
  51 };
  52
  53 }  // namespace content
  54
  55 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_FETCH_DISPATCHER_H_