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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/me2me_desktop_environment.h"
#include <utility>
#include "base/logging.h"
#include "base/single_thread_task_runner.h"
#include "build/build_config.h"
#include "remoting/base/logging.h"
#include "remoting/host/client_session_control.h"
#include "remoting/host/curtain_mode.h"
#include "remoting/host/desktop_resizer.h"
#include "remoting/host/host_window.h"
#include "remoting/host/host_window.h"
#include "remoting/host/host_window_proxy.h"
#include "remoting/host/local_input_monitor.h"
#include "remoting/host/resizing_host_observer.h"
#include "remoting/host/screen_controls.h"
#include "remoting/protocol/capability_names.h"
#include "third_party/webrtc/modules/desktop_capture/desktop_capture_options.h"
#include "third_party/webrtc/modules/desktop_capture/screen_capturer.h"
#if defined(OS_POSIX)
#include <sys/types.h>
#include <unistd.h>
#endif // defined(OS_POSIX)
namespace remoting {
Me2MeDesktopEnvironment::~Me2MeDesktopEnvironment() {
DCHECK(caller_task_runner()->BelongsToCurrentThread());
}
scoped_ptr<ScreenControls> Me2MeDesktopEnvironment::CreateScreenControls() {
DCHECK(caller_task_runner()->BelongsToCurrentThread());
return make_scoped_ptr(new ResizingHostObserver(DesktopResizer::Create()));
}
std::string Me2MeDesktopEnvironment::GetCapabilities() const {
std::string capabilities = BasicDesktopEnvironment::GetCapabilities();
if (!capabilities.empty())
capabilities.append(" ");
capabilities.append(protocol::kRateLimitResizeRequests);
return capabilities;
}
Me2MeDesktopEnvironment::Me2MeDesktopEnvironment(
scoped_refptr<base::SingleThreadTaskRunner> caller_task_runner,
scoped_refptr<base::SingleThreadTaskRunner> video_capture_task_runner,
scoped_refptr<base::SingleThreadTaskRunner> input_task_runner,
scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner,
bool supports_touch_events)
: BasicDesktopEnvironment(caller_task_runner,
video_capture_task_runner,
input_task_runner,
ui_task_runner,
supports_touch_events) {
DCHECK(caller_task_runner->BelongsToCurrentThread());
// X DAMAGE is not enabled by default, since it is broken on many systems -
// see http://crbug.com/73423. It's safe to enable it here because it works
// properly under Xvfb.
desktop_capture_options()->set_use_update_notifications(true);
}
bool Me2MeDesktopEnvironment::InitializeSecurity(
base::WeakPtr<ClientSessionControl> client_session_control,
bool curtain_enabled) {
DCHECK(caller_task_runner()->BelongsToCurrentThread());
// Detach the session from the local console if the caller requested.
if (curtain_enabled) {
curtain_ = CurtainMode::Create(caller_task_runner(),
ui_task_runner(),
client_session_control);
bool active = curtain_->Activate();
if (!active)
LOG(ERROR) << "Failed to activate the curtain mode.";
return active;
}
// Otherwise, if the session is shared with the local user start monitoring
// the local input and create the in-session UI.
#if defined(OS_LINUX)
bool want_user_interface = false;
#elif defined(OS_MACOSX)
// Don't try to display any UI on top of the system's login screen as this
// is rejected by the Window Server on OS X 10.7.4, and prevents the
// capturer from working (http://crbug.com/140984).
// TODO(lambroslambrou): Use a better technique of detecting whether we're
// running in the LoginWindow context, and refactor this into a separate
// function to be used here and in CurtainMode::ActivateCurtain().
bool want_user_interface = getuid() != 0;
#elif defined(OS_WIN)
bool want_user_interface = true;
#endif // defined(OS_WIN)
// Create the disconnect window.
if (want_user_interface) {
// Create the local input monitor.
local_input_monitor_ = LocalInputMonitor::Create(caller_task_runner(),
input_task_runner(),
ui_task_runner(),
client_session_control);
disconnect_window_ = HostWindow::CreateDisconnectWindow();
disconnect_window_.reset(new HostWindowProxy(
caller_task_runner(), ui_task_runner(), std::move(disconnect_window_)));
disconnect_window_->Start(client_session_control);
}
return true;
}
Me2MeDesktopEnvironmentFactory::Me2MeDesktopEnvironmentFactory(
scoped_refptr<base::SingleThreadTaskRunner> caller_task_runner,
scoped_refptr<base::SingleThreadTaskRunner> video_capture_task_runner,
scoped_refptr<base::SingleThreadTaskRunner> input_task_runner,
scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner)
: BasicDesktopEnvironmentFactory(caller_task_runner,
video_capture_task_runner,
input_task_runner,
ui_task_runner) {}
Me2MeDesktopEnvironmentFactory::~Me2MeDesktopEnvironmentFactory() {
}
scoped_ptr<DesktopEnvironment> Me2MeDesktopEnvironmentFactory::Create(
base::WeakPtr<ClientSessionControl> client_session_control) {
DCHECK(caller_task_runner()->BelongsToCurrentThread());
scoped_ptr<Me2MeDesktopEnvironment> desktop_environment(
new Me2MeDesktopEnvironment(
caller_task_runner(), video_capture_task_runner(),
input_task_runner(), ui_task_runner(), supports_touch_events()));
if (!desktop_environment->InitializeSecurity(client_session_control,
curtain_enabled_)) {
return nullptr;
}
return std::move(desktop_environment);
}
void Me2MeDesktopEnvironmentFactory::SetEnableCurtaining(bool enable) {
DCHECK(caller_task_runner()->BelongsToCurrentThread());
curtain_enabled_ = enable;
}
} // namespace remoting
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