content/child/navigator_connect/service_port_dispatcher_impl.h

   1 // Copyright 2015 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_NAVIGATOR_CONNECT_SERVICE_PORT_DISPATCHER_IMPL_H_
   6 #define CONTENT_CHILD_NAVIGATOR_CONNECT_SERVICE_PORT_DISPATCHER_IMPL_H_
   7
   8 #include "base/macros.h"
   9 #include "base/memory/weak_ptr.h"
  10 #include "content/common/service_port_service.mojom.h"
  11 #include "content/public/child/worker_thread.h"
  12 #include "third_party/mojo/src/mojo/public/cpp/bindings/strong_binding.h"
  13
  14 namespace blink {
  15 class WebServiceWorkerContextProxy;
  16 }
  17
  18 namespace content {
  19
  20 // Mojo service that dispatches ServicePort related events to a service worker.
  21 // Instances are always created on a worker thread, and all methods are only
  22 // called on that same thread. Lifetime of this class is tied to both the mojo
  23 // channel and the lifetime of the worker thread. If either the channel is
  24 // disconnected or the worker thread stops the instance deletes itself.
  25 class ServicePortDispatcherImpl : public ServicePortDispatcher,
  26                                   public WorkerThread::Observer {
  27  public:
  28   static void Create(base::WeakPtr<blink::WebServiceWorkerContextProxy> proxy,
  29                      mojo::InterfaceRequest<ServicePortDispatcher> request);
  30
  31   ~ServicePortDispatcherImpl() override;
  32
  33  private:
  34   ServicePortDispatcherImpl(
  35       base::WeakPtr<blink::WebServiceWorkerContextProxy> proxy,
  36       mojo::InterfaceRequest<ServicePortDispatcher> request);
  37
  38   // WorkerThread::Observer implementation.
  39   void WillStopCurrentWorkerThread() override;
  40
  41   // ServicePortDispatcher implementation.
  42   void Connect(const mojo::String& target_url,
  43                const mojo::String& origin,
  44                int32_t port_id,
  45                const ConnectCallback& callback) override;
  46
  47   mojo::StrongBinding<ServicePortDispatcher> binding_;
  48   base::WeakPtr<blink::WebServiceWorkerContextProxy> proxy_;
  49
  50   DISALLOW_COPY_AND_ASSIGN(ServicePortDispatcherImpl);
  51 };
  52
  53 }  // namespace content
  54
  55 #endif  // CONTENT_CHILD_NAVIGATOR_CONNECT_SERVICE_PORT_DISPATCHER_IMPL_H_