ppapi/proxy/ppp_messaging_proxy.cc

   1 // Copyright (c) 2012 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 "ppapi/proxy/ppp_messaging_proxy.h"
   6
   7 #include <algorithm>
   8
   9 #include "ppapi/c/ppp_messaging.h"
  10 #include "ppapi/proxy/host_dispatcher.h"
  11 #include "ppapi/proxy/plugin_resource_tracker.h"
  12 #include "ppapi/proxy/plugin_var_tracker.h"
  13 #include "ppapi/proxy/ppapi_messages.h"
  14 #include "ppapi/proxy/serialized_var.h"
  15 #include "ppapi/shared_impl/ppapi_globals.h"
  16 #include "ppapi/shared_impl/proxy_lock.h"
  17 #include "ppapi/shared_impl/var_tracker.h"
  18
  19 namespace ppapi {
  20 namespace proxy {
  21
  22 PPP_Messaging_Proxy::PPP_Messaging_Proxy(Dispatcher* dispatcher)
  23     : InterfaceProxy(dispatcher),
  24       ppp_messaging_impl_(NULL) {
  25   if (dispatcher->IsPlugin()) {
  26     ppp_messaging_impl_ = static_cast<const PPP_Messaging*>(
  27         dispatcher->local_get_interface()(PPP_MESSAGING_INTERFACE));
  28   }
  29 }
  30
  31 PPP_Messaging_Proxy::~PPP_Messaging_Proxy() {
  32 }
  33
  34 bool PPP_Messaging_Proxy::OnMessageReceived(const IPC::Message& msg) {
  35   if (!dispatcher()->IsPlugin())
  36     return false;
  37
  38   bool handled = true;
  39   IPC_BEGIN_MESSAGE_MAP(PPP_Messaging_Proxy, msg)
  40     IPC_MESSAGE_HANDLER(PpapiMsg_PPPMessaging_HandleMessage,
  41                         OnMsgHandleMessage)
  42     IPC_MESSAGE_UNHANDLED(handled = false)
  43   IPC_END_MESSAGE_MAP()
  44   return handled;
  45 }
  46
  47 void PPP_Messaging_Proxy::OnMsgHandleMessage(
  48     PP_Instance instance, SerializedVarReceiveInput message_data) {
  49   PP_Var received_var(message_data.GetForInstance(dispatcher(), instance));
  50   // SerializedVarReceiveInput will decrement the reference count, but we want
  51   // to give the recipient a reference.
  52   PpapiGlobals::Get()->GetVarTracker()->AddRefVar(received_var);
  53   CallWhileUnlocked(ppp_messaging_impl_->HandleMessage,
  54                     instance,
  55                     received_var);
  56 }
  57
  58 }  // namespace proxy
  59 }  // namespace ppapi