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// Copyright (c) 2010 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 "remoting/client/chromoting_client.h"
#include "base/message_loop.h"
#include "remoting/base/tracer.h"
#include "remoting/client/chromoting_view.h"
#include "remoting/client/client_context.h"
#include "remoting/client/input_handler.h"
#include "remoting/client/rectangle_update_decoder.h"
#include "remoting/protocol/connection_to_host.h"
#include "remoting/protocol/session_config.h"
namespace remoting {
ChromotingClient::ChromotingClient(const ClientConfig& config,
ClientContext* context,
protocol::ConnectionToHost* connection,
ChromotingView* view,
RectangleUpdateDecoder* rectangle_decoder,
InputHandler* input_handler,
CancelableTask* client_done)
: config_(config),
context_(context),
connection_(connection),
view_(view),
rectangle_decoder_(rectangle_decoder),
input_handler_(input_handler),
client_done_(client_done),
state_(CREATED),
packet_being_processed_(false) {
}
ChromotingClient::~ChromotingClient() {
}
void ChromotingClient::Start() {
if (message_loop() != MessageLoop::current()) {
message_loop()->PostTask(
FROM_HERE,
NewRunnableMethod(this, &ChromotingClient::Start));
return;
}
connection_->Connect(config_.username, config_.auth_token, config_.host_jid,
this, this, this);
if (!view_->Initialize()) {
ClientDone();
}
}
void ChromotingClient::Stop() {
if (message_loop() != MessageLoop::current()) {
message_loop()->PostTask(
FROM_HERE,
NewRunnableMethod(this, &ChromotingClient::Stop));
return;
}
connection_->Disconnect();
view_->TearDown();
}
void ChromotingClient::ClientDone() {
if (client_done_ != NULL) {
message_loop()->PostTask(FROM_HERE, client_done_);
}
}
void ChromotingClient::Repaint() {
if (message_loop() != MessageLoop::current()) {
message_loop()->PostTask(
FROM_HERE,
NewRunnableMethod(this, &ChromotingClient::Repaint));
return;
}
view_->Paint();
}
void ChromotingClient::SetViewport(int x, int y, int width, int height) {
if (message_loop() != MessageLoop::current()) {
message_loop()->PostTask(
FROM_HERE,
NewRunnableMethod(this, &ChromotingClient::SetViewport,
x, y, width, height));
return;
}
view_->SetViewport(x, y, width, height);
}
void ChromotingClient::ProcessVideoPacket(const VideoPacket* packet,
Task* done) {
if (message_loop() != MessageLoop::current()) {
message_loop()->PostTask(
FROM_HERE,
NewRunnableMethod(this, &ChromotingClient::ProcessVideoPacket,
packet, done));
return;
}
received_packets_.push_back(QueuedVideoPacket(packet, done));
if (!packet_being_processed_)
DispatchPacket();
}
int ChromotingClient::GetPendingPackets() {
return received_packets_.size();
}
void ChromotingClient::DispatchPacket() {
DCHECK_EQ(message_loop(), MessageLoop::current());
CHECK(!packet_being_processed_);
if (received_packets_.empty()) {
// Nothing to do!
return;
}
const VideoPacket* packet = received_packets_.front().packet;
packet_being_processed_ = true;
ScopedTracer tracer("Handle video packet");
rectangle_decoder_->DecodePacket(
packet, NewTracedMethod(this, &ChromotingClient::OnPacketDone));
}
void ChromotingClient::OnConnectionOpened(protocol::ConnectionToHost* conn) {
VLOG(1) << "ChromotingClient::OnConnectionOpened";
SetConnectionState(CONNECTED);
Initialize();
}
void ChromotingClient::OnConnectionClosed(protocol::ConnectionToHost* conn) {
VLOG(1) << "ChromotingClient::OnConnectionClosed";
SetConnectionState(DISCONNECTED);
}
void ChromotingClient::OnConnectionFailed(protocol::ConnectionToHost* conn) {
VLOG(1) << "ChromotingClient::OnConnectionFailed";
SetConnectionState(FAILED);
}
MessageLoop* ChromotingClient::message_loop() {
return context_->jingle_thread()->message_loop();
}
void ChromotingClient::SetConnectionState(ConnectionState s) {
// TODO(ajwong): We actually may want state to be a shared variable. Think
// through later.
if (message_loop() != MessageLoop::current()) {
message_loop()->PostTask(
FROM_HERE,
NewRunnableMethod(this, &ChromotingClient::SetConnectionState, s));
return;
}
state_ = s;
view_->SetConnectionState(s);
Repaint();
}
void ChromotingClient::OnPacketDone() {
if (message_loop() != MessageLoop::current()) {
message_loop()->PostTask(
FROM_HERE,
NewTracedMethod(this, &ChromotingClient::OnPacketDone));
return;
}
TraceContext::tracer()->PrintString("Packet done");
received_packets_.front().done->Run();
delete received_packets_.front().done;
received_packets_.pop_front();
packet_being_processed_ = false;
DispatchPacket();
}
void ChromotingClient::Initialize() {
if (message_loop() != MessageLoop::current()) {
message_loop()->PostTask(
FROM_HERE,
NewTracedMethod(this, &ChromotingClient::Initialize));
return;
}
TraceContext::tracer()->PrintString("Initializing client.");
const protocol::SessionConfig* config = connection_->config();
// Resize the window.
int width = config->initial_resolution().width;
int height = config->initial_resolution().height;
VLOG(1) << "Initial screen geometry: " << width << "x" << height;
// TODO(ajwong): What to do here? Does the decoder actually need to request
// the right frame size? This is mainly an optimization right?
// rectangle_decoder_->SetOutputFrameSize(width, height);
view_->SetViewport(0, 0, width, height);
// Initialize the decoder.
rectangle_decoder_->Initialize(config);
// Schedule the input handler to process the event queue.
input_handler_->Initialize();
}
////////////////////////////////////////////////////////////////////////////
// ClientStub control channel interface.
void ChromotingClient::NotifyResolution(
const protocol::NotifyResolutionRequest* msg,
Task* done) {
// TODO(garykac): Implement this.
}
} // namespace remoting
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