content/child/service_worker/service_worker_registration_handle_reference.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_CHILD_SERVICE_WORKER_SERVICE_WORKER_REGISTRATION_HANDLE_REFERENCE_H_
   6 #define CONTENT_CHILD_SERVICE_WORKER_SERVICE_WORKER_REGISTRATION_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 #include "url/gurl.h"
  12
  13 namespace content {
  14
  15 class ThreadSafeSender;
  16
  17 // Represents an interprocess reference to ServiceWorkerRegistrationHandle
  18 // managed in the browser process. The constructor and destructor sends a
  19 // message to increment or decrement the reference count to the browser
  20 // process.
  21 class ServiceWorkerRegistrationHandleReference {
  22  public:
  23   // Creates a new ServiceWorkerRegistrationHandleReference and increments
  24   // ref-count.
  25   static scoped_ptr<ServiceWorkerRegistrationHandleReference> Create(
  26       const ServiceWorkerRegistrationObjectInfo& info,
  27       ThreadSafeSender* sender);
  28
  29   // Creates a new ServiceWorkerRegistrationHandleReference by adopting a
  30   // ref-count.
  31   static scoped_ptr<ServiceWorkerRegistrationHandleReference> Adopt(
  32       const ServiceWorkerRegistrationObjectInfo& info,
  33       ThreadSafeSender* sender);
  34
  35   ~ServiceWorkerRegistrationHandleReference();
  36
  37   const ServiceWorkerRegistrationObjectInfo& info() const { return info_; }
  38   int handle_id() const { return info_.handle_id; }
  39   GURL scope() const { return info_.scope; }
  40   int64 registration_id() const { return info_.registration_id; }
  41
  42  private:
  43   ServiceWorkerRegistrationHandleReference(
  44       const ServiceWorkerRegistrationObjectInfo& info,
  45       ThreadSafeSender* sender,
  46       bool increment_ref_in_ctor);
  47
  48   ServiceWorkerRegistrationObjectInfo info_;
  49   scoped_refptr<ThreadSafeSender> sender_;
  50
  51   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerRegistrationHandleReference);
  52 };
  53
  54 }  // namespace content
  55
  56 #endif  // CONTENT_CHILD_SERVICE_WORKER_SERVICE_WORKER_REGISTRATION_HANDLE_REFERENCE_H_