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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ppapi/proxy/ppp_messaging_proxy.h"
#include <algorithm>
#include "ppapi/c/ppp_messaging.h"
#include "ppapi/proxy/host_dispatcher.h"
#include "ppapi/proxy/plugin_resource_tracker.h"
#include "ppapi/proxy/plugin_var_tracker.h"
#include "ppapi/proxy/ppapi_messages.h"
#include "ppapi/proxy/serialized_var.h"
namespace ppapi {
namespace proxy {
namespace {
void HandleMessage(PP_Instance instance, PP_Var message_data) {
HostDispatcher* dispatcher = HostDispatcher::GetForInstance(instance);
if (!dispatcher || (message_data.type == PP_VARTYPE_OBJECT)) {
// The dispatcher should always be valid, and the browser should never send
// an 'object' var over PPP_Messaging.
NOTREACHED();
return;
}
dispatcher->Send(new PpapiMsg_PPPMessaging_HandleMessage(
INTERFACE_ID_PPP_MESSAGING,
instance,
SerializedVarSendInput(dispatcher, message_data)));
}
static const PPP_Messaging messaging_interface = {
&HandleMessage
};
InterfaceProxy* CreateMessagingProxy(Dispatcher* dispatcher,
const void* target_interface) {
return new PPP_Messaging_Proxy(dispatcher, target_interface);
}
} // namespace
PPP_Messaging_Proxy::PPP_Messaging_Proxy(Dispatcher* dispatcher,
const void* target_interface)
: InterfaceProxy(dispatcher, target_interface) {
}
PPP_Messaging_Proxy::~PPP_Messaging_Proxy() {
}
// static
const InterfaceProxy::Info* PPP_Messaging_Proxy::GetInfo() {
static const Info info = {
&messaging_interface,
PPP_MESSAGING_INTERFACE,
INTERFACE_ID_PPP_MESSAGING,
false,
&CreateMessagingProxy,
};
return &info;
}
bool PPP_Messaging_Proxy::OnMessageReceived(const IPC::Message& msg) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(PPP_Messaging_Proxy, msg)
IPC_MESSAGE_HANDLER(PpapiMsg_PPPMessaging_HandleMessage,
OnMsgHandleMessage)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void PPP_Messaging_Proxy::OnMsgHandleMessage(
PP_Instance instance, SerializedVarReceiveInput message_data) {
PP_Var received_var(message_data.Get(dispatcher()));
// SerializedVarReceiveInput will decrement the reference count, but we want
// to give the recipient a reference.
PluginResourceTracker::GetInstance()->var_tracker().AddRefVar(received_var);
ppp_messaging_target()->HandleMessage(instance, received_var);
}
} // namespace proxy
} // namespace ppapi
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