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// Copyright (c) 2012 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_testing_proxy.h"
#include "base/message_loop.h"
#include "ppapi/c/dev/ppb_testing_dev.h"
#include "ppapi/proxy/enter_proxy.h"
#include "ppapi/proxy/plugin_dispatcher.h"
#include "ppapi/proxy/ppapi_messages.h"
#include "ppapi/shared_impl/ppapi_globals.h"
#include "ppapi/shared_impl/proxy_lock.h"
#include "ppapi/shared_impl/resource.h"
#include "ppapi/shared_impl/resource_tracker.h"
#include "ppapi/thunk/enter.h"
#include "ppapi/thunk/ppb_input_event_api.h"
using ppapi::thunk::EnterInstance;
using ppapi::thunk::EnterResourceNoLock;
using ppapi::thunk::PPB_InputEvent_API;
namespace ppapi {
namespace proxy {
namespace {
PP_Bool ReadImageData(PP_Resource graphics_2d,
PP_Resource image,
const PP_Point* top_left) {
ProxyAutoLock lock;
Resource* image_object =
PpapiGlobals::Get()->GetResourceTracker()->GetResource(image);
if (!image_object)
return PP_FALSE;
Resource* graphics_2d_object =
PpapiGlobals::Get()->GetResourceTracker()->GetResource(graphics_2d);
if (!graphics_2d_object ||
image_object->pp_instance() != graphics_2d_object->pp_instance())
return PP_FALSE;
PluginDispatcher* dispatcher = PluginDispatcher::GetForInstance(
image_object->pp_instance());
if (!dispatcher)
return PP_FALSE;
PP_Bool result = PP_FALSE;
dispatcher->Send(new PpapiHostMsg_PPBTesting_ReadImageData(
API_ID_PPB_TESTING, graphics_2d_object->host_resource(),
image_object->host_resource(), *top_left, &result));
return result;
}
void RunMessageLoop(PP_Instance instance) {
MessageLoop::ScopedNestableTaskAllower allow(MessageLoop::current());
// TODO(dmichael): We should probably assert that this is the main thread.
MessageLoop::current()->Run();
}
void QuitMessageLoop(PP_Instance instance) {
// TODO(dmichael): We should probably assert that this is the main thread.
MessageLoop::current()->QuitNow();
}
uint32_t GetLiveObjectsForInstance(PP_Instance instance_id) {
ProxyAutoLock lock;
PluginDispatcher* dispatcher = PluginDispatcher::GetForInstance(instance_id);
if (!dispatcher)
return static_cast<uint32_t>(-1);
uint32_t result = 0;
dispatcher->Send(new PpapiHostMsg_PPBTesting_GetLiveObjectsForInstance(
API_ID_PPB_TESTING, instance_id, &result));
return result;
}
PP_Bool IsOutOfProcess() {
return PP_TRUE;
}
void SimulateInputEvent(PP_Instance instance_id, PP_Resource input_event) {
ProxyAutoLock lock;
PluginDispatcher* dispatcher = PluginDispatcher::GetForInstance(instance_id);
if (!dispatcher)
return;
EnterResourceNoLock<PPB_InputEvent_API> enter(input_event, false);
if (enter.failed())
return;
const InputEventData& input_event_data = enter.object()->GetInputEventData();
dispatcher->Send(new PpapiHostMsg_PPBTesting_SimulateInputEvent(
API_ID_PPB_TESTING, instance_id, input_event_data));
}
PP_Var GetDocumentURL(PP_Instance instance, PP_URLComponents_Dev* components) {
EnterInstance enter(instance);
if (enter.failed())
return PP_MakeUndefined();
return enter.functions()->GetDocumentURL(instance, components);
}
// TODO(dmichael): Ideally we could get a way to check the number of vars in the
// host-side tracker when running out-of-process, to make sure the proxy does
// not leak host-side vars.
uint32_t GetLiveVars(PP_Var live_vars[], uint32_t array_size) {
ProxyAutoLock lock;
std::vector<PP_Var> vars =
PpapiGlobals::Get()->GetVarTracker()->GetLiveVars();
for (size_t i = 0u;
i < std::min(static_cast<size_t>(array_size), vars.size());
++i)
live_vars[i] = vars[i];
return vars.size();
}
const PPB_Testing_Dev testing_interface = {
&ReadImageData,
&RunMessageLoop,
&QuitMessageLoop,
&GetLiveObjectsForInstance,
&IsOutOfProcess,
&SimulateInputEvent,
&GetDocumentURL,
&GetLiveVars
};
InterfaceProxy* CreateTestingProxy(Dispatcher* dispatcher) {
return new PPB_Testing_Proxy(dispatcher);
}
} // namespace
PPB_Testing_Proxy::PPB_Testing_Proxy(Dispatcher* dispatcher)
: InterfaceProxy(dispatcher),
ppb_testing_impl_(NULL) {
if (!dispatcher->IsPlugin()) {
ppb_testing_impl_ = static_cast<const PPB_Testing_Dev*>(
dispatcher->local_get_interface()(PPB_TESTING_DEV_INTERFACE));
}
}
PPB_Testing_Proxy::~PPB_Testing_Proxy() {
}
// static
const InterfaceProxy::Info* PPB_Testing_Proxy::GetInfo() {
static const Info info = {
&testing_interface,
PPB_TESTING_DEV_INTERFACE,
API_ID_PPB_TESTING,
false,
&CreateTestingProxy,
};
return &info;
}
bool PPB_Testing_Proxy::OnMessageReceived(const IPC::Message& msg) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(PPB_Testing_Proxy, msg)
IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBTesting_ReadImageData,
OnMsgReadImageData)
IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBTesting_GetLiveObjectsForInstance,
OnMsgGetLiveObjectsForInstance)
IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBTesting_SimulateInputEvent,
OnMsgSimulateInputEvent)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void PPB_Testing_Proxy::OnMsgReadImageData(
const HostResource& device_context_2d,
const HostResource& image,
const PP_Point& top_left,
PP_Bool* result) {
*result = ppb_testing_impl_->ReadImageData(
device_context_2d.host_resource(), image.host_resource(), &top_left);
}
void PPB_Testing_Proxy::OnMsgRunMessageLoop(PP_Instance instance) {
ppb_testing_impl_->RunMessageLoop(instance);
}
void PPB_Testing_Proxy::OnMsgQuitMessageLoop(PP_Instance instance) {
ppb_testing_impl_->QuitMessageLoop(instance);
}
void PPB_Testing_Proxy::OnMsgGetLiveObjectsForInstance(PP_Instance instance,
uint32_t* result) {
*result = ppb_testing_impl_->GetLiveObjectsForInstance(instance);
}
void PPB_Testing_Proxy::OnMsgSimulateInputEvent(
PP_Instance instance,
const InputEventData& input_event) {
scoped_refptr<PPB_InputEvent_Shared> input_event_impl(
new PPB_InputEvent_Shared(OBJECT_IS_PROXY, instance, input_event));
ppb_testing_impl_->SimulateInputEvent(instance,
input_event_impl->pp_resource());
}
} // namespace proxy
} // namespace ppapi
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