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 struct ServiceWorkerProviderContextDeleter;
  28 class ThreadSafeSender;
  29
  30 // An instance of this class holds document-related information (e.g.
  31 // .controller). Created and destructed on the main thread.
  32 // TODO(kinuko): To support navigator.serviceWorker in dedicated workers
  33 // this needs to be RefCountedThreadSafe and .controller info needs to be
  34 // handled in a thread-safe manner (e.g. by a lock etc).
  35 class ServiceWorkerProviderContext
  36     : public base::RefCounted<ServiceWorkerProviderContext> {
  37  public:
  38   explicit ServiceWorkerProviderContext(int provider_id);
  39
  40   // Called from ServiceWorkerDispatcher.
  41   void OnServiceWorkerStateChanged(int handle_id,
  42                                    blink::WebServiceWorkerState state);
  43   void OnSetInstallingServiceWorker(int provider_id,
  44                                     const ServiceWorkerObjectInfo& info);
  45   void OnSetWaitingServiceWorker(int provider_id,
  46                                  const ServiceWorkerObjectInfo& info);
  47   void OnSetActiveServiceWorker(int provider_id,
  48                                 const ServiceWorkerObjectInfo& info);
  49   void OnSetControllerServiceWorker(int provider_id,
  50                                     const ServiceWorkerObjectInfo& info);
  51
  52   int provider_id() const { return provider_id_; }
  53
  54   ServiceWorkerHandleReference* installing();
  55   ServiceWorkerHandleReference* waiting();
  56   ServiceWorkerHandleReference* active();
  57   ServiceWorkerHandleReference* controller();
  58
  59   // Gets the handle ID of the installing Service Worker, or
  60   // kInvalidServiceWorkerHandleId if the provider does not have a
  61   // installing Service Worker.
  62   int installing_handle_id() const;
  63
  64   // Gets the handle ID of the waiting Service Worker, or
  65   // kInvalidServiceWorkerHandleId if the provider does not have a
  66   // waiting Service Worker.
  67   int waiting_handle_id() const;
  68
  69   // Gets the handle ID of the active Service Worker, or
  70   // kInvalidServiceWorkerHandleId if the provider does not have an active
  71   // Service Worker.
  72   int active_handle_id() const;
  73
  74   // Gets the handle ID of the controller Service Worker, or
  75   // kInvalidServiceWorkerHandleId if the provider is not controlled
  76   // by a Service Worker.
  77   int controller_handle_id() const;
  78
  79  private:
  80   friend class base::RefCounted<ServiceWorkerProviderContext>;
  81   ~ServiceWorkerProviderContext();
  82
  83   const int provider_id_;
  84   scoped_refptr<base::MessageLoopProxy> main_thread_loop_proxy_;
  85   scoped_refptr<ThreadSafeSender> thread_safe_sender_;
  86   scoped_ptr<ServiceWorkerHandleReference> installing_;
  87   scoped_ptr<ServiceWorkerHandleReference> waiting_;
  88   scoped_ptr<ServiceWorkerHandleReference> active_;
  89   scoped_ptr<ServiceWorkerHandleReference> controller_;
  90
  91   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerProviderContext);
  92 };
  93
  94 }  // namespace content
  95
  96 #endif  // CONTENT_CHILD_SERVICE_WORKER_SERVICE_WORKER_PROVIDER_CONTEXT_H_