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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_instance_private_proxy.h"
6 
7 #include <algorithm>
8 
9 #include "ppapi/c/pp_var.h"
10 #include "ppapi/c/private/ppp_instance_private.h"
11 #include "ppapi/proxy/host_dispatcher.h"
12 #include "ppapi/proxy/plugin_dispatcher.h"
13 #include "ppapi/proxy/plugin_resource_tracker.h"
14 #include "ppapi/proxy/ppapi_messages.h"
15 #include "ppapi/shared_impl/proxy_lock.h"
16 
17 namespace ppapi {
18 namespace proxy {
19 
20 namespace {
21 
GetInstanceObject(PP_Instance instance)22 PP_Var GetInstanceObject(PP_Instance instance) {
23   Dispatcher* dispatcher = HostDispatcher::GetForInstance(instance);
24   if (!dispatcher->permissions().HasPermission(PERMISSION_PRIVATE))
25     return PP_MakeUndefined();
26 
27   ReceiveSerializedVarReturnValue result;
28   dispatcher->Send(new PpapiMsg_PPPInstancePrivate_GetInstanceObject(
29       API_ID_PPP_INSTANCE_PRIVATE, instance, &result));
30   return result.Return(dispatcher);
31 }
32 
33 static const PPP_Instance_Private instance_private_interface = {
34   &GetInstanceObject
35 };
36 
37 }  // namespace
38 
PPP_Instance_Private_Proxy(Dispatcher * dispatcher)39 PPP_Instance_Private_Proxy::PPP_Instance_Private_Proxy(Dispatcher* dispatcher)
40     : InterfaceProxy(dispatcher),
41       ppp_instance_private_impl_(NULL) {
42   if (dispatcher->IsPlugin()) {
43     ppp_instance_private_impl_ = static_cast<const PPP_Instance_Private*>(
44         dispatcher->local_get_interface()(PPP_INSTANCE_PRIVATE_INTERFACE));
45   }
46 }
47 
~PPP_Instance_Private_Proxy()48 PPP_Instance_Private_Proxy::~PPP_Instance_Private_Proxy() {
49 }
50 
51 // static
GetProxyInterface()52 const PPP_Instance_Private* PPP_Instance_Private_Proxy::GetProxyInterface() {
53   return &instance_private_interface;
54 }
55 
OnMessageReceived(const IPC::Message & msg)56 bool PPP_Instance_Private_Proxy::OnMessageReceived(const IPC::Message& msg) {
57   if (!dispatcher()->IsPlugin())
58     return false;
59 
60   bool handled = true;
61   IPC_BEGIN_MESSAGE_MAP(PPP_Instance_Private_Proxy, msg)
62     IPC_MESSAGE_HANDLER(PpapiMsg_PPPInstancePrivate_GetInstanceObject,
63                         OnMsgGetInstanceObject)
64     IPC_MESSAGE_UNHANDLED(handled = false)
65   IPC_END_MESSAGE_MAP()
66   return handled;
67 }
68 
OnMsgGetInstanceObject(PP_Instance instance,SerializedVarReturnValue result)69 void PPP_Instance_Private_Proxy::OnMsgGetInstanceObject(
70     PP_Instance instance,
71     SerializedVarReturnValue result) {
72   result.Return(dispatcher(),
73                 CallWhileUnlocked(ppp_instance_private_impl_->GetInstanceObject,
74                                   instance));
75 }
76 
77 }  // namespace proxy
78 }  // namespace ppapi
79