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
57 } // namespace
58
PPP_InputEvent_Proxy(Dispatcher * dispatcher)59 PPP_InputEvent_Proxy::PPP_InputEvent_Proxy(Dispatcher* dispatcher)
60 : InterfaceProxy(dispatcher),
61 ppp_input_event_impl_(NULL) {
62 if (dispatcher->IsPlugin()) {
63 ppp_input_event_impl_ = static_cast<const PPP_InputEvent*>(
64 dispatcher->local_get_interface()(PPP_INPUT_EVENT_INTERFACE));
65 }
66 }
67
~PPP_InputEvent_Proxy()68 PPP_InputEvent_Proxy::~PPP_InputEvent_Proxy() {
69 }
70
71 // static
GetProxyInterface()72 const PPP_InputEvent* PPP_InputEvent_Proxy::GetProxyInterface() {
73 return &input_event_interface;
74 }
75
OnMessageReceived(const IPC::Message & msg)76 bool PPP_InputEvent_Proxy::OnMessageReceived(const IPC::Message& msg) {
77 if (!dispatcher()->IsPlugin())
78 return false;
79
80 bool handled = true;
81 IPC_BEGIN_MESSAGE_MAP(PPP_InputEvent_Proxy, msg)
82 IPC_MESSAGE_HANDLER(PpapiMsg_PPPInputEvent_HandleInputEvent,
83 OnMsgHandleInputEvent)
84 IPC_MESSAGE_HANDLER(PpapiMsg_PPPInputEvent_HandleFilteredInputEvent,
85 OnMsgHandleFilteredInputEvent)
86 IPC_MESSAGE_UNHANDLED(handled = false)
87 IPC_END_MESSAGE_MAP()
88 return handled;
89 }
90
OnMsgHandleInputEvent(PP_Instance instance,const InputEventData & data)91 void PPP_InputEvent_Proxy::OnMsgHandleInputEvent(PP_Instance instance,
92 const InputEventData& data) {
93 scoped_refptr<PPB_InputEvent_Shared> resource(new PPB_InputEvent_Shared(
94 OBJECT_IS_PROXY, instance, data));
95 CallWhileUnlocked(ppp_input_event_impl_->HandleInputEvent,
96 instance,
97 resource->pp_resource());
98 }
99
OnMsgHandleFilteredInputEvent(PP_Instance instance,const InputEventData & data,PP_Bool * result)100 void PPP_InputEvent_Proxy::OnMsgHandleFilteredInputEvent(
101 PP_Instance instance,
102 const InputEventData& data,
103 PP_Bool* result) {
104 scoped_refptr<PPB_InputEvent_Shared> resource(new PPB_InputEvent_Shared(
105 OBJECT_IS_PROXY, instance, data));
106 *result = CallWhileUnlocked(ppp_input_event_impl_->HandleInputEvent,
107 instance,
108 resource->pp_resource());
109 }
110
111 } // namespace proxy
112 } // namespace ppapi
113