content/child/service_worker/service_worker_provider_context.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_PROVIDER_CONTEXT_H_
   6 #define CONTENT_CHILD_SERVICE_WORKER_SERVICE_WORKER_PROVIDER_CONTEXT_H_
   7
   8 #include <set>
   9 #include <vector>
  10
  11 #include "base/memory/ref_counted.h"
  12 #include "base/sequenced_task_runner_helpers.h"
  13 #include "base/synchronization/lock.h"
  14 #include "content/common/service_worker/service_worker_types.h"
  15
  16 namespace base {
  17 class MessageLoopProxy;
  18 }
  19
  20 namespace IPC {
  21 class Message;
  22 }
  23
  24 namespace content {
  25
  26 class ServiceWorkerHandleReference;
  27 class ServiceWorkerRegistrationHandleReference;
  28 struct ServiceWorkerProviderContextDeleter;
  29 class ThreadSafeSender;
  30
  31 // An instance of this class holds document-related information (e.g.
  32 // .controller). Created and destructed on the main thread.
  33 // TODO(kinuko): To support navigator.serviceWorker in dedicated workers
  34 // this needs to be RefCountedThreadSafe and .controller info needs to be
  35 // handled in a thread-safe manner (e.g. by a lock etc).
  36 class ServiceWorkerProviderContext
  37     : public base::RefCounted<ServiceWorkerProviderContext> {
  38  public:
  39   explicit ServiceWorkerProviderContext(int provider_id);
  40
  41   // Called from ServiceWorkerDispatcher.
  42   void OnAssociateRegistration(const ServiceWorkerRegistrationObjectInfo& info,
  43                                const ServiceWorkerVersionAttributes& attrs);
  44   void OnDisassociateRegistration();
  45   void OnServiceWorkerStateChanged(int handle_id,
  46                                    blink::WebServiceWorkerState state);
  47   void OnSetInstallingServiceWorker(int registration_handle_id,
  48                                     const ServiceWorkerObjectInfo& info);
  49   void OnSetWaitingServiceWorker(int registration_handle_id,
  50                                  const ServiceWorkerObjectInfo& info);
  51   void OnSetActiveServiceWorker(int registration_handle_id,
  52                                 const ServiceWorkerObjectInfo& info);
  53   void OnSetControllerServiceWorker(int registration_handle_id,
  54                                     const ServiceWorkerObjectInfo& info);
  55
  56   int provider_id() const { return provider_id_; }
  57
  58   ServiceWorkerHandleReference* installing();
  59   ServiceWorkerHandleReference* waiting();
  60   ServiceWorkerHandleReference* active();
  61   ServiceWorkerHandleReference* controller();
  62   ServiceWorkerRegistrationHandleReference* registration();
  63
  64   ServiceWorkerVersionAttributes GetVersionAttributes();
  65
  66   // Gets the handle ID of the installing Service Worker, or
  67   // kInvalidServiceWorkerHandleId if the provider does not have a
  68   // installing Service Worker.
  69   int installing_handle_id() const;
  70
  71   // Gets the handle ID of the waiting Service Worker, or
  72   // kInvalidServiceWorkerHandleId if the provider does not have a
  73   // waiting Service Worker.
  74   int waiting_handle_id() const;
  75
  76   // Gets the handle ID of the active Service Worker, or
  77   // kInvalidServiceWorkerHandleId if the provider does not have an active
  78   // Service Worker.
  79   int active_handle_id() const;
  80
  81   // Gets the handle ID of the controller Service Worker, or
  82   // kInvalidServiceWorkerHandleId if the provider is not controlled
  83   // by a Service Worker.
  84   int controller_handle_id() const;
  85
  86   // Gets the handle ID of the associated registration, or
  87   // kInvalidRegistrationHandleId if the provider is not associated with any
  88   // registration.
  89   int registration_handle_id() const;
  90
  91  private:
  92   friend class base::RefCounted<ServiceWorkerProviderContext>;
  93   ~ServiceWorkerProviderContext();
  94
  95   bool IsAssociatedWithRegistration(int registration_handle_id) const;
  96
  97   const int provider_id_;
  98   scoped_refptr<base::MessageLoopProxy> main_thread_loop_proxy_;
  99   scoped_refptr<ThreadSafeSender> thread_safe_sender_;
 100   scoped_ptr<ServiceWorkerHandleReference> installing_;
 101   scoped_ptr<ServiceWorkerHandleReference> waiting_;
 102   scoped_ptr<ServiceWorkerHandleReference> active_;
 103   scoped_ptr<ServiceWorkerHandleReference> controller_;
 104   scoped_ptr<ServiceWorkerRegistrationHandleReference> registration_;
 105
 106   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerProviderContext);
 107 };
 108
 109 }  // namespace content
 110
 111 #endif  // CONTENT_CHILD_SERVICE_WORKER_SERVICE_WORKER_PROVIDER_CONTEXT_H_