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/ppb_testing_proxy.h"
6
7 #include "base/message_loop/message_loop.h"
8 #include "ppapi/c/private/ppb_testing_private.h"
9 #include "ppapi/proxy/enter_proxy.h"
10 #include "ppapi/proxy/plugin_dispatcher.h"
11 #include "ppapi/proxy/ppapi_messages.h"
12 #include "ppapi/shared_impl/ppapi_globals.h"
13 #include "ppapi/shared_impl/proxy_lock.h"
14 #include "ppapi/shared_impl/resource.h"
15 #include "ppapi/shared_impl/resource_tracker.h"
16 #include "ppapi/thunk/enter.h"
17 #include "ppapi/thunk/ppb_graphics_2d_api.h"
18 #include "ppapi/thunk/ppb_input_event_api.h"
19
20 using ppapi::thunk::EnterInstance;
21 using ppapi::thunk::EnterResource;
22 using ppapi::thunk::EnterResourceNoLock;
23 using ppapi::thunk::PPB_Graphics2D_API;
24 using ppapi::thunk::PPB_InputEvent_API;
25
26 namespace ppapi {
27 namespace proxy {
28
29 namespace {
30
ReadImageData(PP_Resource graphics_2d,PP_Resource image,const PP_Point * top_left)31 PP_Bool ReadImageData(PP_Resource graphics_2d,
32 PP_Resource image,
33 const PP_Point* top_left) {
34 ProxyAutoLock lock;
35 Resource* image_object =
36 PpapiGlobals::Get()->GetResourceTracker()->GetResource(image);
37 if (!image_object)
38 return PP_FALSE;
39 Resource* graphics_2d_object =
40 PpapiGlobals::Get()->GetResourceTracker()->GetResource(graphics_2d);
41 if (!graphics_2d_object ||
42 image_object->pp_instance() != graphics_2d_object->pp_instance())
43 return PP_FALSE;
44
45 EnterResourceNoLock<PPB_Graphics2D_API> enter(graphics_2d, true);
46 if (enter.failed())
47 return PP_FALSE;
48 const HostResource& host_image = image_object->host_resource();
49 return enter.object()->ReadImageData(host_image.host_resource(), top_left) ?
50 PP_TRUE : PP_FALSE;
51 }
52
RunMessageLoop(PP_Instance instance)53 void RunMessageLoop(PP_Instance instance) {
54 base::MessageLoop::ScopedNestableTaskAllower allow(
55 base::MessageLoop::current());
56 CHECK(PpapiGlobals::Get()->GetMainThreadMessageLoop()->
57 BelongsToCurrentThread());
58 base::MessageLoop::current()->Run();
59 }
60
QuitMessageLoop(PP_Instance instance)61 void QuitMessageLoop(PP_Instance instance) {
62 CHECK(PpapiGlobals::Get()->GetMainThreadMessageLoop()->
63 BelongsToCurrentThread());
64 base::MessageLoop::current()->QuitNow();
65 }
66
GetLiveObjectsForInstance(PP_Instance instance_id)67 uint32_t GetLiveObjectsForInstance(PP_Instance instance_id) {
68 ProxyAutoLock lock;
69 PluginDispatcher* dispatcher = PluginDispatcher::GetForInstance(instance_id);
70 if (!dispatcher)
71 return static_cast<uint32_t>(-1);
72
73 uint32_t result = 0;
74 dispatcher->Send(new PpapiHostMsg_PPBTesting_GetLiveObjectsForInstance(
75 API_ID_PPB_TESTING, instance_id, &result));
76 return result;
77 }
78
IsOutOfProcess()79 PP_Bool IsOutOfProcess() {
80 return PP_TRUE;
81 }
82
SimulateInputEvent(PP_Instance instance_id,PP_Resource input_event)83 void SimulateInputEvent(PP_Instance instance_id, PP_Resource input_event) {
84 ProxyAutoLock lock;
85 PluginDispatcher* dispatcher = PluginDispatcher::GetForInstance(instance_id);
86 if (!dispatcher)
87 return;
88 EnterResourceNoLock<PPB_InputEvent_API> enter(input_event, false);
89 if (enter.failed())
90 return;
91
92 const InputEventData& input_event_data = enter.object()->GetInputEventData();
93 dispatcher->Send(new PpapiHostMsg_PPBTesting_SimulateInputEvent(
94 API_ID_PPB_TESTING, instance_id, input_event_data));
95 }
96
GetDocumentURL(PP_Instance instance,PP_URLComponents_Dev * components)97 PP_Var GetDocumentURL(PP_Instance instance, PP_URLComponents_Dev* components) {
98 EnterInstance enter(instance);
99 if (enter.failed())
100 return PP_MakeUndefined();
101 return enter.functions()->GetDocumentURL(instance, components);
102 }
103
104 // TODO(dmichael): Ideally we could get a way to check the number of vars in the
105 // host-side tracker when running out-of-process, to make sure the proxy does
106 // not leak host-side vars.
GetLiveVars(PP_Var live_vars[],uint32_t array_size)107 uint32_t GetLiveVars(PP_Var live_vars[], uint32_t array_size) {
108 ProxyAutoLock lock;
109 std::vector<PP_Var> vars =
110 PpapiGlobals::Get()->GetVarTracker()->GetLiveVars();
111 for (size_t i = 0u;
112 i < std::min(static_cast<size_t>(array_size), vars.size());
113 ++i)
114 live_vars[i] = vars[i];
115 return vars.size();
116 }
117
SetMinimumArrayBufferSizeForShmem(PP_Instance instance,uint32_t threshold)118 void SetMinimumArrayBufferSizeForShmem(PP_Instance instance,
119 uint32_t threshold) {
120 ProxyAutoLock lock;
121 RawVarDataGraph::SetMinimumArrayBufferSizeForShmemForTest(threshold);
122 PluginDispatcher* dispatcher = PluginDispatcher::GetForInstance(instance);
123 if (!dispatcher)
124 return;
125 dispatcher->Send(
126 new PpapiHostMsg_PPBTesting_SetMinimumArrayBufferSizeForShmem(
127 API_ID_PPB_TESTING, threshold));
128 }
129
130 const PPB_Testing_Private testing_interface = {
131 &ReadImageData,
132 &RunMessageLoop,
133 &QuitMessageLoop,
134 &GetLiveObjectsForInstance,
135 &IsOutOfProcess,
136 &SimulateInputEvent,
137 &GetDocumentURL,
138 &GetLiveVars,
139 &SetMinimumArrayBufferSizeForShmem
140 };
141
142 } // namespace
143
PPB_Testing_Proxy(Dispatcher * dispatcher)144 PPB_Testing_Proxy::PPB_Testing_Proxy(Dispatcher* dispatcher)
145 : InterfaceProxy(dispatcher),
146 ppb_testing_impl_(NULL) {
147 if (!dispatcher->IsPlugin()) {
148 ppb_testing_impl_ = static_cast<const PPB_Testing_Private*>(
149 dispatcher->local_get_interface()(PPB_TESTING_PRIVATE_INTERFACE));
150 }
151 }
152
~PPB_Testing_Proxy()153 PPB_Testing_Proxy::~PPB_Testing_Proxy() {
154 }
155
156 // static
GetProxyInterface()157 const PPB_Testing_Private* PPB_Testing_Proxy::GetProxyInterface() {
158 return &testing_interface;
159 }
160
OnMessageReceived(const IPC::Message & msg)161 bool PPB_Testing_Proxy::OnMessageReceived(const IPC::Message& msg) {
162 if (!dispatcher()->permissions().HasPermission(PERMISSION_TESTING))
163 return false;
164
165 bool handled = true;
166 IPC_BEGIN_MESSAGE_MAP(PPB_Testing_Proxy, msg)
167 IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBTesting_ReadImageData,
168 OnMsgReadImageData)
169 IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBTesting_GetLiveObjectsForInstance,
170 OnMsgGetLiveObjectsForInstance)
171 IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBTesting_SimulateInputEvent,
172 OnMsgSimulateInputEvent)
173 IPC_MESSAGE_HANDLER(
174 PpapiHostMsg_PPBTesting_SetMinimumArrayBufferSizeForShmem,
175 OnMsgSetMinimumArrayBufferSizeForShmem)
176 IPC_MESSAGE_UNHANDLED(handled = false)
177 IPC_END_MESSAGE_MAP()
178 return handled;
179 }
180
OnMsgReadImageData(const HostResource & device_context_2d,const HostResource & image,const PP_Point & top_left,PP_Bool * result)181 void PPB_Testing_Proxy::OnMsgReadImageData(
182 const HostResource& device_context_2d,
183 const HostResource& image,
184 const PP_Point& top_left,
185 PP_Bool* result) {
186 *result = ppb_testing_impl_->ReadImageData(
187 device_context_2d.host_resource(), image.host_resource(), &top_left);
188 }
189
OnMsgRunMessageLoop(PP_Instance instance)190 void PPB_Testing_Proxy::OnMsgRunMessageLoop(PP_Instance instance) {
191 ppb_testing_impl_->RunMessageLoop(instance);
192 }
193
OnMsgQuitMessageLoop(PP_Instance instance)194 void PPB_Testing_Proxy::OnMsgQuitMessageLoop(PP_Instance instance) {
195 ppb_testing_impl_->QuitMessageLoop(instance);
196 }
197
OnMsgGetLiveObjectsForInstance(PP_Instance instance,uint32_t * result)198 void PPB_Testing_Proxy::OnMsgGetLiveObjectsForInstance(PP_Instance instance,
199 uint32_t* result) {
200 *result = ppb_testing_impl_->GetLiveObjectsForInstance(instance);
201 }
202
OnMsgSimulateInputEvent(PP_Instance instance,const InputEventData & input_event)203 void PPB_Testing_Proxy::OnMsgSimulateInputEvent(
204 PP_Instance instance,
205 const InputEventData& input_event) {
206 scoped_refptr<PPB_InputEvent_Shared> input_event_impl(
207 new PPB_InputEvent_Shared(OBJECT_IS_PROXY, instance, input_event));
208 ppb_testing_impl_->SimulateInputEvent(instance,
209 input_event_impl->pp_resource());
210 }
211
OnMsgSetMinimumArrayBufferSizeForShmem(uint32_t threshold)212 void PPB_Testing_Proxy::OnMsgSetMinimumArrayBufferSizeForShmem(
213 uint32_t threshold) {
214 RawVarDataGraph::SetMinimumArrayBufferSizeForShmemForTest(threshold);
215 }
216
217 } // namespace proxy
218 } // namespace ppapi
219