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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/ppb_instance_proxy.h"
#include "ppapi/c/pp_var.h"
#include "ppapi/c/ppb_instance.h"
#include "ppapi/proxy/host_dispatcher.h"
#include "ppapi/proxy/plugin_dispatcher.h"
#include "ppapi/proxy/plugin_resource.h"
#include "ppapi/proxy/plugin_resource_tracker.h"
#include "ppapi/proxy/ppapi_messages.h"
#include "ppapi/proxy/serialized_var.h"
namespace pp {
namespace proxy {
namespace {
PP_Var GetWindowObject(PP_Instance instance) {
PluginDispatcher* dispatcher = PluginDispatcher::GetForInstance(instance);
if (!dispatcher)
return PP_MakeUndefined();
ReceiveSerializedVarReturnValue result;
dispatcher->Send(new PpapiHostMsg_PPBInstance_GetWindowObject(
INTERFACE_ID_PPB_INSTANCE, instance, &result));
return result.Return(dispatcher);
}
PP_Var GetOwnerElementObject(PP_Instance instance) {
PluginDispatcher* dispatcher = PluginDispatcher::GetForInstance(instance);
if (!dispatcher)
return PP_MakeUndefined();
ReceiveSerializedVarReturnValue result;
dispatcher->Send(new PpapiHostMsg_PPBInstance_GetOwnerElementObject(
INTERFACE_ID_PPB_INSTANCE, instance, &result));
return result.Return(dispatcher);
}
PP_Bool BindGraphics(PP_Instance instance, PP_Resource device) {
PluginDispatcher* dispatcher = PluginDispatcher::GetForInstance(instance);
if (!dispatcher)
return PP_FALSE;
PluginResource* object =
PluginResourceTracker::GetInstance()->GetResourceObject(device);
if (!object || object->instance() != instance)
return PP_FALSE;
PP_Bool result = PP_FALSE;
dispatcher->Send(new PpapiHostMsg_PPBInstance_BindGraphics(
INTERFACE_ID_PPB_INSTANCE, instance, object->host_resource(),
&result));
return result;
}
PP_Bool IsFullFrame(PP_Instance instance) {
PluginDispatcher* dispatcher = PluginDispatcher::GetForInstance(instance);
if (!dispatcher)
return PP_FALSE;
PP_Bool result = PP_FALSE;
dispatcher->Send(new PpapiHostMsg_PPBInstance_IsFullFrame(
INTERFACE_ID_PPB_INSTANCE, instance, &result));
return result;
}
PP_Var ExecuteScript(PP_Instance instance, PP_Var script, PP_Var* exception) {
PluginDispatcher* dispatcher = PluginDispatcher::GetForInstance(instance);
if (!dispatcher)
return PP_MakeUndefined();
ReceiveSerializedException se(dispatcher, exception);
if (se.IsThrown())
return PP_MakeUndefined();
ReceiveSerializedVarReturnValue result;
dispatcher->Send(new PpapiHostMsg_PPBInstance_ExecuteScript(
INTERFACE_ID_PPB_INSTANCE, instance,
SerializedVarSendInput(dispatcher, script), &se, &result));
return result.Return(dispatcher);
}
const PPB_Instance instance_interface = {
&GetWindowObject,
&GetOwnerElementObject,
&BindGraphics,
&IsFullFrame,
&ExecuteScript
};
InterfaceProxy* CreateInstanceProxy(Dispatcher* dispatcher,
const void* target_interface) {
return new PPB_Instance_Proxy(dispatcher, target_interface);
}
} // namespace
PPB_Instance_Proxy::PPB_Instance_Proxy(Dispatcher* dispatcher,
const void* target_interface)
: InterfaceProxy(dispatcher, target_interface) {
}
PPB_Instance_Proxy::~PPB_Instance_Proxy() {
}
// static
const InterfaceProxy::Info* PPB_Instance_Proxy::GetInfo() {
static const Info info = {
&instance_interface,
PPB_INSTANCE_INTERFACE,
INTERFACE_ID_PPB_INSTANCE,
false,
&CreateInstanceProxy,
};
return &info;
}
bool PPB_Instance_Proxy::OnMessageReceived(const IPC::Message& msg) {
// Prevent the dispatcher from going away during a call to ExecuteScript.
// This must happen OUTSIDE of ExecuteScript since the SerializedVars use
// the dispatcher upon return of the function (converting the
// SerializedVarReturnValue/OutParam to a SerializedVar in the destructor).
ScopedModuleReference death_grip(dispatcher());
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(PPB_Instance_Proxy, msg)
IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBInstance_GetWindowObject,
OnMsgGetWindowObject)
IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBInstance_GetOwnerElementObject,
OnMsgGetOwnerElementObject)
IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBInstance_BindGraphics,
OnMsgBindGraphics)
IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBInstance_IsFullFrame,
OnMsgIsFullFrame)
IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBInstance_ExecuteScript,
OnMsgExecuteScript)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void PPB_Instance_Proxy::OnMsgGetWindowObject(
PP_Instance instance,
SerializedVarReturnValue result) {
result.Return(dispatcher(),
ppb_instance_target()->GetWindowObject(instance));
}
void PPB_Instance_Proxy::OnMsgGetOwnerElementObject(
PP_Instance instance,
SerializedVarReturnValue result) {
result.Return(dispatcher(),
ppb_instance_target()->GetOwnerElementObject(instance));
}
void PPB_Instance_Proxy::OnMsgBindGraphics(PP_Instance instance,
HostResource device,
PP_Bool* result) {
*result = ppb_instance_target()->BindGraphics(instance,
device.host_resource());
}
void PPB_Instance_Proxy::OnMsgIsFullFrame(PP_Instance instance,
PP_Bool* result) {
*result = ppb_instance_target()->IsFullFrame(instance);
}
void PPB_Instance_Proxy::OnMsgExecuteScript(
PP_Instance instance,
SerializedVarReceiveInput script,
SerializedVarOutParam out_exception,
SerializedVarReturnValue result) {
if (dispatcher()->IsPlugin())
NOTREACHED();
else
static_cast<HostDispatcher*>(dispatcher())->set_allow_plugin_reentrancy();
result.Return(dispatcher(), ppb_instance_target()->ExecuteScript(
instance,
script.Get(dispatcher()),
out_exception.OutParam(dispatcher())));
}
} // namespace proxy
} // namespace pp
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