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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_CHILD_SERVICE_WORKER_SERVICE_WORKER_HANDLE_REFERENCE_H_
      6 #define CONTENT_CHILD_SERVICE_WORKER_SERVICE_WORKER_HANDLE_REFERENCE_H_
      7 
      8 #include "base/memory/ref_counted.h"
      9 #include "base/memory/scoped_ptr.h"
     10 #include "content/common/service_worker/service_worker_types.h"
     11 
     12 namespace content {
     13 
     14 class ThreadSafeSender;
     15 
     16 // Automatically increments and decrements ServiceWorkerHandle's ref-count
     17 // (in the browser side) in ctor and dtor.
     18 class ServiceWorkerHandleReference {
     19  public:
     20   // Creates a new ServiceWorkerHandleReference and increments ref-count.
     21   static scoped_ptr<ServiceWorkerHandleReference> Create(
     22       const ServiceWorkerObjectInfo& info,
     23       ThreadSafeSender* sender);
     24 
     25   // Creates a new ServiceWorkerHandleReference by adopting a
     26   // ref-count. ServiceWorkerHandleReferences created this way must
     27   // have a matching
     28   // ServiceWorkerDispatcherHost::RegisterServiceWorkerHandle call on
     29   // the browser side.
     30   static scoped_ptr<ServiceWorkerHandleReference> Adopt(
     31       const ServiceWorkerObjectInfo& info,
     32       ThreadSafeSender* sender);
     33 
     34   ~ServiceWorkerHandleReference();
     35 
     36   const ServiceWorkerObjectInfo& info() const { return info_; }
     37   int handle_id() const { return info_.handle_id; }
     38   const GURL& scope() const { return info_.scope; }
     39   const GURL& url() const { return info_.url; }
     40   blink::WebServiceWorkerState state() const { return info_.state; }
     41   void set_state(blink::WebServiceWorkerState state) { info_.state = state; }
     42 
     43  private:
     44   ServiceWorkerHandleReference(const ServiceWorkerObjectInfo& info,
     45                                ThreadSafeSender* sender,
     46                                bool increment_ref_in_ctor);
     47   ServiceWorkerObjectInfo info_;
     48   scoped_refptr<ThreadSafeSender> sender_;
     49   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerHandleReference);
     50 };
     51 
     52 }  // namespace content
     53 
     54 #endif  // CONTENT_CHILD_SERVICE_WORKER_SERVICE_WORKER_HANDLE_REFERENCE_H_
     55