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_input_event_proxy.h"
6
7 #include "ppapi/c/ppp_input_event.h"
8 #include "ppapi/proxy/host_dispatcher.h"
9 #include "ppapi/proxy/plugin_dispatcher.h"
10 #include "ppapi/proxy/ppapi_messages.h"
11 #include "ppapi/shared_impl/ppb_input_event_shared.h"
12 #include "ppapi/thunk/enter.h"
13 #include "ppapi/thunk/ppb_input_event_api.h"
14
15 using ppapi::thunk::EnterResourceNoLock;
16 using ppapi::thunk::PPB_InputEvent_API;
17
18 namespace ppapi {
19 namespace proxy {
20
21 namespace {
22
23 #if !defined(OS_NACL)
HandleInputEvent(PP_Instance instance,PP_Resource input_event)24 PP_Bool HandleInputEvent(PP_Instance instance, PP_Resource input_event) {
25 EnterResourceNoLock<PPB_InputEvent_API> enter(input_event, false);
26 if (enter.failed()) {
27 NOTREACHED();
28 return PP_FALSE;
29 }
30 const InputEventData& data = enter.object()->GetInputEventData();
31 HostDispatcher* dispatcher = HostDispatcher::GetForInstance(instance);
32 if (!dispatcher) {
33 NOTREACHED();
34 return PP_FALSE;
35 }
36
37 // Need to send different messages depending on whether filtering is needed.
38 PP_Bool result = PP_FALSE;
39 if (data.is_filtered) {
40 dispatcher->Send(new PpapiMsg_PPPInputEvent_HandleFilteredInputEvent(
41 API_ID_PPP_INPUT_EVENT, instance, data, &result));
42 } else {
43 dispatcher->Send(new PpapiMsg_PPPInputEvent_HandleInputEvent(
44 API_ID_PPP_INPUT_EVENT, instance, data));
45 }
46 return result;
47 }
48
49 static const PPP_InputEvent input_event_interface = {
50 &HandleInputEvent
51 };
52 #else
53 // The NaCl plugin doesn't need the host side interface - stub it out.
54 static const PPP_InputEvent input_event_interface = {};
55 #endif // !defined(OS_NACL)
56
CreateInputEventProxy(Dispatcher * dispatcher)57 InterfaceProxy* CreateInputEventProxy(Dispatcher* dispatcher) {
58 return new PPP_InputEvent_Proxy(dispatcher);
59 }
60
61 } // namespace
62
PPP_InputEvent_Proxy(Dispatcher * dispatcher)63 PPP_InputEvent_Proxy::PPP_InputEvent_Proxy(Dispatcher* dispatcher)
64 : InterfaceProxy(dispatcher),
65 ppp_input_event_impl_(NULL) {
66 if (dispatcher->IsPlugin()) {
67 ppp_input_event_impl_ = static_cast<const PPP_InputEvent*>(
68 dispatcher->local_get_interface()(PPP_INPUT_EVENT_INTERFACE));
69 }
70 }
71
~PPP_InputEvent_Proxy()72 PPP_InputEvent_Proxy::~PPP_InputEvent_Proxy() {
73 }
74
75 // static
GetInfo()76 const InterfaceProxy::Info* PPP_InputEvent_Proxy::GetInfo() {
77 static const Info info = {
78 &input_event_interface,
79 PPP_INPUT_EVENT_INTERFACE,
80 API_ID_PPP_INPUT_EVENT,
81 false,
82 &CreateInputEventProxy,
83 };
84 return &info;
85 }
86
OnMessageReceived(const IPC::Message & msg)87 bool PPP_InputEvent_Proxy::OnMessageReceived(const IPC::Message& msg) {
88 if (!dispatcher()->IsPlugin())
89 return false;
90
91 bool handled = true;
92 IPC_BEGIN_MESSAGE_MAP(PPP_InputEvent_Proxy, msg)
93 IPC_MESSAGE_HANDLER(PpapiMsg_PPPInputEvent_HandleInputEvent,
94 OnMsgHandleInputEvent)
95 IPC_MESSAGE_HANDLER(PpapiMsg_PPPInputEvent_HandleFilteredInputEvent,
96 OnMsgHandleFilteredInputEvent)
97 IPC_MESSAGE_UNHANDLED(handled = false)
98 IPC_END_MESSAGE_MAP()
99 return handled;
100 }
101
OnMsgHandleInputEvent(PP_Instance instance,const InputEventData & data)102 void PPP_InputEvent_Proxy::OnMsgHandleInputEvent(PP_Instance instance,
103 const InputEventData& data) {
104 scoped_refptr<PPB_InputEvent_Shared> resource(new PPB_InputEvent_Shared(
105 OBJECT_IS_PROXY, instance, data));
106 CallWhileUnlocked(ppp_input_event_impl_->HandleInputEvent,
107 instance,
108 resource->pp_resource());
109 }
110
OnMsgHandleFilteredInputEvent(PP_Instance instance,const InputEventData & data,PP_Bool * result)111 void PPP_InputEvent_Proxy::OnMsgHandleFilteredInputEvent(
112 PP_Instance instance,
113 const InputEventData& data,
114 PP_Bool* result) {
115 scoped_refptr<PPB_InputEvent_Shared> resource(new PPB_InputEvent_Shared(
116 OBJECT_IS_PROXY, instance, data));
117 *result = CallWhileUnlocked(ppp_input_event_impl_->HandleInputEvent,
118 instance,
119 resource->pp_resource());
120 }
121
122 } // namespace proxy
123 } // namespace ppapi
124