content/browser/navigator_connect/navigator_connect_dispatcher_host.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_BROWSER_NAVIGATOR_CONNECT_NAVIGATOR_CONNECT_DISPATCHER_HOST_H_
   6 #define CONTENT_BROWSER_NAVIGATOR_CONNECT_NAVIGATOR_CONNECT_DISPATCHER_HOST_H_
   7
   8 #include "content/public/browser/browser_message_filter.h"
   9
  10 class GURL;
  11
  12 namespace content {
  13
  14 class MessagePortMessageFilter;
  15 class NavigatorConnectContextImpl;
  16 struct NavigatorConnectClient;
  17 struct TransferredMessagePort;
  18
  19 // Receives navigator.connect connection attempts from a child process.
  20 // Attempts to find a service that serves the URL the connection is made to
  21 // and sets up the actual connection.
  22 // Constructed on the UI thread, but all other methods are called on the IO
  23 // thread. Typically there is one instance of this class for each renderer
  24 // process, and this class lives at least as long as the renderer process is
  25 // alive (since this class is refcounted it could outlive the renderer process
  26 // if it is still handling a connection attempt).
  27 class NavigatorConnectDispatcherHost : public BrowserMessageFilter {
  28  public:
  29   NavigatorConnectDispatcherHost(
  30       const scoped_refptr<NavigatorConnectContextImpl>&
  31           navigator_connect_context,
  32       MessagePortMessageFilter* message_port_message_filter);
  33
  34  private:
  35   ~NavigatorConnectDispatcherHost() override;
  36
  37   // BrowserMessageFilter implementation.
  38   bool OnMessageReceived(const IPC::Message& message) override;
  39
  40   // IPC Message handlers.
  41   void OnConnect(int thread_id,
  42                  int request_id,
  43                  const NavigatorConnectClient& client);
  44
  45   // Callback called when the service worker finished handling the cross origin
  46   // connection event.
  47   void OnConnectResult(int thread_id,
  48                        int request_id,
  49                        const TransferredMessagePort& message_port,
  50                        int message_port_route_id,
  51                        bool accept_connection);
  52
  53   scoped_refptr<NavigatorConnectContextImpl> navigator_connect_context_;
  54   MessagePortMessageFilter* const message_port_message_filter_;
  55
  56   DISALLOW_COPY_AND_ASSIGN(NavigatorConnectDispatcherHost);
  57 };
  58
  59 }  // namespace content
  60
  61 #endif  // CONTENT_BROWSER_NAVIGATOR_CONNECT_NAVIGATOR_CONNECT_DISPATCHER_HOST_H_