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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_flash_message_loop_proxy.h"
#include "base/bind.h"
#include "base/macros.h"
#include "ppapi/c/pp_errors.h"
#include "ppapi/c/private/ppb_flash_message_loop.h"
#include "ppapi/proxy/enter_proxy.h"
#include "ppapi/proxy/plugin_dispatcher.h"
#include "ppapi/proxy/ppapi_messages.h"
#include "ppapi/shared_impl/resource.h"
#include "ppapi/thunk/enter.h"
#include "ppapi/thunk/ppb_flash_message_loop_api.h"
#include "ppapi/thunk/resource_creation_api.h"
using ppapi::thunk::PPB_Flash_MessageLoop_API;
namespace ppapi {
namespace proxy {
namespace {
class FlashMessageLoop : public PPB_Flash_MessageLoop_API, public Resource {
public:
explicit FlashMessageLoop(const HostResource& resource);
~FlashMessageLoop() override;
// Resource overrides.
PPB_Flash_MessageLoop_API* AsPPB_Flash_MessageLoop_API() override;
// PPB_Flash_MesssageLoop_API implementation.
int32_t Run() override;
void Quit() override;
void RunFromHostProxy(const RunFromHostProxyCallback& callback) override;
private:
DISALLOW_COPY_AND_ASSIGN(FlashMessageLoop);
};
FlashMessageLoop::FlashMessageLoop(const HostResource& resource)
: Resource(OBJECT_IS_PROXY, resource) {
}
FlashMessageLoop::~FlashMessageLoop() {
}
PPB_Flash_MessageLoop_API* FlashMessageLoop::AsPPB_Flash_MessageLoop_API() {
return this;
}
int32_t FlashMessageLoop::Run() {
int32_t result = PP_ERROR_FAILED;
IPC::SyncMessage* msg = new PpapiHostMsg_PPBFlashMessageLoop_Run(
API_ID_PPB_FLASH_MESSAGELOOP, host_resource(), &result);
msg->EnableMessagePumping();
PluginDispatcher::GetForResource(this)->Send(msg);
return result;
}
void FlashMessageLoop::Quit() {
PluginDispatcher::GetForResource(this)->Send(
new PpapiHostMsg_PPBFlashMessageLoop_Quit(
API_ID_PPB_FLASH_MESSAGELOOP, host_resource()));
}
void FlashMessageLoop::RunFromHostProxy(
const RunFromHostProxyCallback& callback) {
// This should never be called on the plugin side.
NOTREACHED();
}
} // namespace
PPB_Flash_MessageLoop_Proxy::PPB_Flash_MessageLoop_Proxy(Dispatcher* dispatcher)
: InterfaceProxy(dispatcher) {
}
PPB_Flash_MessageLoop_Proxy::~PPB_Flash_MessageLoop_Proxy() {
}
// static
PP_Resource PPB_Flash_MessageLoop_Proxy::CreateProxyResource(
PP_Instance instance) {
PluginDispatcher* dispatcher = PluginDispatcher::GetForInstance(instance);
if (!dispatcher)
return 0;
HostResource result;
dispatcher->Send(new PpapiHostMsg_PPBFlashMessageLoop_Create(
API_ID_PPB_FLASH_MESSAGELOOP, instance, &result));
if (result.is_null())
return 0;
return (new FlashMessageLoop(result))->GetReference();
}
bool PPB_Flash_MessageLoop_Proxy::OnMessageReceived(const IPC::Message& msg) {
if (!dispatcher()->permissions().HasPermission(PERMISSION_FLASH))
return false;
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(PPB_Flash_MessageLoop_Proxy, msg)
IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBFlashMessageLoop_Create,
OnMsgCreate)
// We cannot use IPC_MESSAGE_HANDLER here. Because it tries to send the sync
// message reply after the handler returns. However, in this case, the
// PPB_Flash_MessageLoop_Proxy object may be destroyed before the handler
// returns.
IPC_MESSAGE_HANDLER_DELAY_REPLY(PpapiHostMsg_PPBFlashMessageLoop_Run,
OnMsgRun)
IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBFlashMessageLoop_Quit,
OnMsgQuit)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void PPB_Flash_MessageLoop_Proxy::OnMsgCreate(PP_Instance instance,
HostResource* result) {
if (!dispatcher()->permissions().HasPermission(PERMISSION_FLASH))
return;
thunk::EnterResourceCreation enter(instance);
if (enter.succeeded()) {
result->SetHostResource(
instance, enter.functions()->CreateFlashMessageLoop(instance));
}
}
void PPB_Flash_MessageLoop_Proxy::OnMsgRun(
const HostResource& flash_message_loop,
IPC::Message* reply) {
if (!dispatcher()->permissions().HasPermission(PERMISSION_FLASH))
return;
PPB_Flash_MessageLoop_API::RunFromHostProxyCallback callback =
base::Bind(&PPB_Flash_MessageLoop_Proxy::WillQuitSoon, AsWeakPtr(),
base::Passed(std::unique_ptr<IPC::Message>(reply)));
EnterHostFromHostResource<PPB_Flash_MessageLoop_API>
enter(flash_message_loop);
if (enter.succeeded())
enter.object()->RunFromHostProxy(callback);
else
callback.Run(PP_ERROR_BADRESOURCE);
}
void PPB_Flash_MessageLoop_Proxy::OnMsgQuit(
const ppapi::HostResource& flash_message_loop) {
EnterHostFromHostResource<PPB_Flash_MessageLoop_API>
enter(flash_message_loop);
if (enter.succeeded())
enter.object()->Quit();
}
void PPB_Flash_MessageLoop_Proxy::WillQuitSoon(
std::unique_ptr<IPC::Message> reply_message,
int32_t result) {
PpapiHostMsg_PPBFlashMessageLoop_Run::WriteReplyParams(reply_message.get(),
result);
Send(reply_message.release());
}
} // namespace proxy
} // namespace ppapi
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