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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 "chrome/browser/chromeos/dbus/sensors_client.h"
#include "base/bind.h"
#include "base/callback.h"
#include "chrome/browser/chromeos/system/runtime_environment.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/sensors_provider.h"
#include "dbus/bus.h"
#include "dbus/message.h"
#include "dbus/object_path.h"
#include "dbus/object_proxy.h"
using content::BrowserThread;
// TODO(cwolfe): Fix the DEPs so that these can be pulled in from
// "chromeos/dbus/service_constants.h".
namespace chromeos {
// Sensors service identifiers.
const char kSensorsServiceName[] = "org.chromium.Sensors";
const char kSensorsServicePath[] = "/org/chromium/Sensors";
const char kSensorsServiceInterface[] = "org.chromium.Sensors";
// Sensors signal names.
const char kScreenOrientationChanged[] = "ScreenOrientationChanged";
// The SensorsClient implementation used in production.
class SensorsClientImpl : public SensorsClient {
public:
explicit SensorsClientImpl(dbus::Bus* bus)
: sensors_proxy_(NULL),
weak_ptr_factory_(this) {
sensors_proxy_ = bus->GetObjectProxy(
chromeos::kSensorsServiceName,
dbus::ObjectPath(chromeos::kSensorsServicePath));
sensors_proxy_->ConnectToSignal(
chromeos::kSensorsServiceInterface,
chromeos::kScreenOrientationChanged,
base::Bind(&SensorsClientImpl::OrientationChangedReceived,
weak_ptr_factory_.GetWeakPtr()),
base::Bind(&SensorsClientImpl::OrientationChangedConnected,
weak_ptr_factory_.GetWeakPtr()));
}
virtual ~SensorsClientImpl() {
}
private:
void OrientationChangedReceived(dbus::Signal* signal) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
content::ScreenOrientation orientation;
dbus::MessageReader reader(signal);
int32 upward = 0;
if (!reader.PopInt32(&upward)) {
LOG(WARNING) << "Orientation changed signal had incorrect parameters: "
<< signal->ToString();
return;
}
VLOG(1) << "Orientation changed to upward " << upward;
orientation = static_cast<content::ScreenOrientation>(upward);
content::SensorsProvider::GetInstance()->ScreenOrientationChanged(
orientation);
}
void OrientationChangedConnected(
const std::string& interface_name,
const std::string& signal_name,
bool success) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
if (!success)
LOG(WARNING) << "Failed to connect to orientation changed signal.";
}
dbus::ObjectProxy* sensors_proxy_;
base::WeakPtrFactory<SensorsClientImpl> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(SensorsClientImpl);
};
// The SensorsClient implementation used on Linux desktop,
// which does nothing.
class SensorsClientStubImpl : public SensorsClient {
};
SensorsClient::SensorsClient() {
}
SensorsClient::~SensorsClient() {
}
SensorsClient* SensorsClient::Create(dbus::Bus* bus) {
if (system::runtime_environment::IsRunningOnChromeOS()) {
return new SensorsClientImpl(bus);
} else {
return new SensorsClientStubImpl();
}
}
} // namespace chromeos
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