src/content/browser/message_port_message_filter.cc

   1 // Copyright 2013 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 #include "content/browser/message_port_message_filter.h"
   6
   7 #include "content/browser/message_port_service.h"
   8 #include "content/common/message_port_messages.h"
   9
  10 namespace content {
  11
  12 MessagePortMessageFilter::MessagePortMessageFilter(
  13     const NextRoutingIDCallback& callback)
  14     : next_routing_id_(callback) {
  15 }
  16
  17 MessagePortMessageFilter::~MessagePortMessageFilter() {
  18 }
  19
  20 void MessagePortMessageFilter::OnChannelClosing() {
  21   MessagePortService::GetInstance()->OnMessagePortMessageFilterClosing(this);
  22 }
  23
  24 bool MessagePortMessageFilter::OnMessageReceived(const IPC::Message& message,
  25                                                  bool* message_was_ok) {
  26   bool handled = true;
  27   IPC_BEGIN_MESSAGE_MAP_EX(MessagePortMessageFilter, message, *message_was_ok)
  28     IPC_MESSAGE_HANDLER(MessagePortHostMsg_CreateMessagePort,
  29                         OnCreateMessagePort)
  30     IPC_MESSAGE_FORWARD(MessagePortHostMsg_DestroyMessagePort,
  31                         MessagePortService::GetInstance(),
  32                         MessagePortService::Destroy)
  33     IPC_MESSAGE_FORWARD(MessagePortHostMsg_Entangle,
  34                         MessagePortService::GetInstance(),
  35                         MessagePortService::Entangle)
  36     IPC_MESSAGE_FORWARD(MessagePortHostMsg_PostMessage,
  37                         MessagePortService::GetInstance(),
  38                         MessagePortService::PostMessage)
  39     IPC_MESSAGE_FORWARD(MessagePortHostMsg_QueueMessages,
  40                         MessagePortService::GetInstance(),
  41                         MessagePortService::QueueMessages)
  42     IPC_MESSAGE_FORWARD(MessagePortHostMsg_SendQueuedMessages,
  43                         MessagePortService::GetInstance(),
  44                         MessagePortService::SendQueuedMessages)
  45     IPC_MESSAGE_UNHANDLED(handled = false)
  46   IPC_END_MESSAGE_MAP_EX()
  47
  48   return handled;
  49 }
  50
  51 void MessagePortMessageFilter::OnDestruct() const {
  52   BrowserThread::DeleteOnIOThread::Destruct(this);
  53 }
  54
  55 int MessagePortMessageFilter::GetNextRoutingID() {
  56   return next_routing_id_.Run();
  57 }
  58
  59 void MessagePortMessageFilter::OnCreateMessagePort(int *route_id,
  60                                                    int* message_port_id) {
  61   *route_id = next_routing_id_.Run();
  62   MessagePortService::GetInstance()->Create(*route_id, this, message_port_id);
  63 }
  64
  65 }  // namespace content