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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 "remoting/host/client_session.h"
#include <algorithm>
#include "base/message_loop_proxy.h"
#include "remoting/host/capturer.h"
#include "remoting/proto/control.pb.h"
#include "remoting/proto/event.pb.h"
#include "remoting/protocol/client_stub.h"
#include "remoting/protocol/clipboard_thread_proxy.h"
namespace remoting {
ClientSession::ClientSession(
EventHandler* event_handler,
scoped_ptr<protocol::ConnectionToClient> connection,
protocol::HostEventStub* host_event_stub,
Capturer* capturer)
: event_handler_(event_handler),
connection_(connection.Pass()),
client_jid_(connection_->session()->jid()),
is_authenticated_(false),
host_event_stub_(host_event_stub),
input_tracker_(host_event_stub_),
remote_input_filter_(&input_tracker_),
mouse_input_filter_(&remote_input_filter_),
client_clipboard_factory_(clipboard_echo_filter_.client_filter()),
capturer_(capturer) {
connection_->SetEventHandler(this);
// TODO(sergeyu): Currently ConnectionToClient expects stubs to be
// set before channels are connected. Make it possible to set stubs
// later and set them only when connection is authenticated.
connection_->set_clipboard_stub(this);
connection_->set_host_stub(this);
connection_->set_input_stub(this);
clipboard_echo_filter_.set_host_stub(host_event_stub_);
}
ClientSession::~ClientSession() {
}
void ClientSession::InjectClipboardEvent(
const protocol::ClipboardEvent& event) {
DCHECK(CalledOnValidThread());
// TODO(wez): Disable clipboard in both directions on local activity, and
// replace these tests with a HostInputFilter (or ClipboardFilter).
if (auth_input_filter_.input_stub() == NULL)
return;
if (disable_input_filter_.input_stub() == NULL)
return;
clipboard_echo_filter_.host_filter()->InjectClipboardEvent(event);
}
void ClientSession::InjectKeyEvent(const protocol::KeyEvent& event) {
DCHECK(CalledOnValidThread());
auth_input_filter_.InjectKeyEvent(event);
}
void ClientSession::InjectMouseEvent(const protocol::MouseEvent& event) {
DCHECK(CalledOnValidThread());
// Ensure that the MouseInputFilter is clamping to the current dimensions.
mouse_input_filter_.set_output_size(capturer_->size_most_recent());
mouse_input_filter_.set_input_size(capturer_->size_most_recent());
auth_input_filter_.InjectMouseEvent(event);
}
void ClientSession::NotifyClientDimensions(
const protocol::ClientDimensions& dimensions) {
// TODO(wez): Use the dimensions, e.g. to resize the host desktop to match.
if (dimensions.has_width() && dimensions.has_height()) {
VLOG(1) << "Received ClientDimensions (width="
<< dimensions.width() << ", height=" << dimensions.height() << ")";
}
}
void ClientSession::ControlVideo(const protocol::VideoControl& video_control) {
// TODO(wez): Pause/resume video updates, being careful not to let clients
// override any host-initiated pause of the video channel.
if (video_control.has_enable()) {
VLOG(1) << "Received VideoControl (enable="
<< video_control.enable() << ")";
}
}
void ClientSession::OnConnectionAuthenticated(
protocol::ConnectionToClient* connection) {
DCHECK(CalledOnValidThread());
DCHECK_EQ(connection_.get(), connection);
is_authenticated_ = true;
auth_input_filter_.set_input_stub(&disable_input_filter_);
clipboard_echo_filter_.set_client_stub(connection_->client_stub());
event_handler_->OnSessionAuthenticated(this);
}
void ClientSession::OnConnectionChannelsConnected(
protocol::ConnectionToClient* connection) {
DCHECK(CalledOnValidThread());
DCHECK_EQ(connection_.get(), connection);
SetDisableInputs(false);
event_handler_->OnSessionChannelsConnected(this);
}
void ClientSession::OnConnectionClosed(
protocol::ConnectionToClient* connection,
protocol::ErrorCode error) {
DCHECK(CalledOnValidThread());
DCHECK_EQ(connection_.get(), connection);
if (!is_authenticated_)
event_handler_->OnSessionAuthenticationFailed(this);
auth_input_filter_.set_input_stub(NULL);
// Ensure that any pressed keys or buttons are released.
input_tracker_.ReleaseAll();
// TODO(sergeyu): Log failure reason?
event_handler_->OnSessionClosed(this);
}
void ClientSession::OnSequenceNumberUpdated(
protocol::ConnectionToClient* connection, int64 sequence_number) {
DCHECK(CalledOnValidThread());
DCHECK_EQ(connection_.get(), connection);
event_handler_->OnSessionSequenceNumber(this, sequence_number);
}
void ClientSession::OnRouteChange(
protocol::ConnectionToClient* connection,
const std::string& channel_name,
const protocol::TransportRoute& route) {
DCHECK(CalledOnValidThread());
DCHECK_EQ(connection_.get(), connection);
event_handler_->OnSessionRouteChange(this, channel_name, route);
}
void ClientSession::Disconnect() {
DCHECK(CalledOnValidThread());
DCHECK(connection_.get());
// This triggers OnConnectionClosed(), and the session may be destroyed
// as the result, so this call must be the last in this method.
connection_->Disconnect();
}
void ClientSession::LocalMouseMoved(const SkIPoint& mouse_pos) {
DCHECK(CalledOnValidThread());
remote_input_filter_.LocalMouseMoved(mouse_pos);
}
void ClientSession::SetDisableInputs(bool disable_inputs) {
DCHECK(CalledOnValidThread());
if (disable_inputs) {
disable_input_filter_.set_input_stub(NULL);
input_tracker_.ReleaseAll();
} else {
disable_input_filter_.set_input_stub(&mouse_input_filter_);
}
}
scoped_ptr<protocol::ClipboardStub> ClientSession::CreateClipboardProxy() {
DCHECK(CalledOnValidThread());
return scoped_ptr<protocol::ClipboardStub>(
new protocol::ClipboardThreadProxy(
client_clipboard_factory_.GetWeakPtr(),
base::MessageLoopProxy::current()));
}
} // namespace remoting
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