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// Copyright (C) 2021 The Qt Company Ltd.
// Copyright (C) 2019 Luxoft Sweden AB
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "mediadiscoverybackend.h"
#include "usbdevice.h"
#include <QtDebug>
#include <QTimer>
#include <QSettings>
using namespace Qt::StringLiterals;
Q_LOGGING_CATEGORY(qLcROQIfMediaDiscovery, "interfaceframework.media.qifmediadiscoverybackend.remoteobjects", QtInfoMsg)
MediaDiscoveryBackend::MediaDiscoveryBackend(QObject *parent)
: QIfMediaDeviceDiscoveryModelBackendInterface(parent)
, m_node(nullptr)
, m_initialized(false)
, m_helper(new QIfRemoteObjectsReplicaHelper(qLcROQIfMediaDiscovery(), this))
{
}
void MediaDiscoveryBackend::initialize()
{
if (!connectToNode())
return;
if (m_replica->isInitialized()) {
onDevicesChanged(m_replica->devices());
emit initializationDone();
}
}
void MediaDiscoveryBackend::onDevicesChanged(const QStringList &devices)
{
if (m_initialized)
return;
for (const QString &device : devices) {
qCInfo(qLcROQIfMediaDiscovery) << "Adding USB Device: " << device;
m_deviceMap.insert(device, new USBDevice(device));
}
emit availableDevices(m_deviceMap.values());
m_initialized = true;
}
void MediaDiscoveryBackend::onDeviceAdded(const QString &device)
{
USBDevice *dev = new USBDevice(device);
m_deviceMap.insert(device, dev);
emit deviceAdded(dev);
}
void MediaDiscoveryBackend::onDeviceRemoved(const QString &device)
{
QIfServiceObject *dev = m_deviceMap.take(device);
emit deviceRemoved(dev);
}
void MediaDiscoveryBackend::updateServiceSettings(const QVariantMap &settings)
{
if (m_serviceSettings == settings)
return;
m_serviceSettings = settings;
connectToNode();
}
bool MediaDiscoveryBackend::connectToNode()
{
QUrl url;
const auto it = m_serviceSettings.constFind(u"MediaDiscoveryModel"_s);
if (it != m_serviceSettings.constEnd())
url = it->toMap().value(u"connectionUrl"_s).toUrl();
if (url.isEmpty())
url = m_serviceSettings.value(u"connectionUrl"_s).toUrl();
static QString configPath;
if (qEnvironmentVariableIsSet("SERVER_CONF_PATH")) {
configPath = QString::fromLocal8Bit(qgetenv("SERVER_CONF_PATH"));
QSettings settings(configPath, QSettings::IniFormat);
settings.beginGroup(u"qtifmedia"_s);
url = QUrl(settings.value(u"Registry"_s).toString());
if (!url.isEmpty()) {
qCInfo(qLcROQIfMediaDiscovery) << "SERVER_CONF_PATH environment variable is set.\n"
<< "Overriding service setting: 'MediaDiscoveryModel.connectionUrl'";
qCInfo(qLcROQIfMediaDiscovery) << "Using SERVER_CONF_PATH is deprecated and will be removed"
"in future Qt versions.";
qCInfo(qLcROQIfMediaDiscovery) << "Please use the new InterfaceFrameworkConfiguration item"
" and set the backend specific configuration options (using"
" the serviceSettings property).";
}
}
if (url.isEmpty() && QFile::exists(u"./server.conf"_s)) {
configPath = u"./server.conf"_s;
QSettings settings(configPath, QSettings::IniFormat);
settings.beginGroup(u"qtifmedia"_s);
url = QUrl(settings.value(u"Registry"_s).toString());
if (!url.isEmpty()) {
qCInfo(qLcROQIfMediaDiscovery) << "Reading url from ./server.conf.\n"
<< "Overriding service setting: 'MediaDiscoveryModel.connectionUrl'";
qCInfo(qLcROQIfMediaDiscovery) << "Using ./server.conf. is deprecated and will be removed"
"in future Qt versions.";
qCInfo(qLcROQIfMediaDiscovery) << "Please use the new InterfaceFrameworkConfiguration item"
" and set the backend specific configuration options (using"
" the serviceSettings property).";
}
}
if (url.isEmpty())
url = u"local:qtifmedia"_s;
if (m_url != url) {
// QtRO doesn't allow to change the URL without destroying the Node
if (m_node) {
qCInfo(qLcROQIfMediaDiscovery) << "Disconnecting from" << m_url;
delete m_node;
}
m_url = url;
m_node = new QRemoteObjectNode(this);
qCInfo(qLcROQIfMediaDiscovery) << "Connecting to" << m_url;
if (!m_node->connectToNode(m_url)) {
qCCritical(qLcROQIfMediaDiscovery) << "Connection to" << m_url << "failed!";
m_replica.reset();
return false;
}
m_replica.reset(m_node->acquire<QIfMediaDiscoveryModelReplica>(u"QtIfMedia.QIfMediaDiscoveryModel"_s));
setupConnections();
const int defaultTimeout = 3000;
int connectionTimeout = defaultTimeout;
if (it != m_serviceSettings.constEnd())
connectionTimeout = it->toMap().value(u"connectionTimeout"_s, defaultTimeout).toInt();
if (connectionTimeout == defaultTimeout)
connectionTimeout = m_serviceSettings.value(u"connectionTimeout"_s, defaultTimeout).toInt();
if (connectionTimeout != -1) {
QTimer::singleShot(connectionTimeout, this, [this](){
if (!m_replica->isInitialized())
qCWarning(qLcROQIfMediaDiscovery) << "QtIfMedia.QIfMediaDiscoveryModel wasn't initialized within the timeout period. Please make sure the server is running.";
});
}
}
return true;
}
void MediaDiscoveryBackend::setupConnections()
{
connect(m_node, &QRemoteObjectNode::error, m_helper, &QIfRemoteObjectsReplicaHelper::onNodeError);
connect(m_helper, &QIfRemoteObjectsReplicaHelper::errorChanged, this, &QIfFeatureInterface::errorChanged);
connect(m_replica.data(), &QRemoteObjectReplica::stateChanged, m_helper, &QIfRemoteObjectsReplicaHelper::onReplicaStateChanged);
connect(m_replica.data(), &QRemoteObjectReplica::initialized, this, &QIfFeatureInterface::initializationDone);
connect(m_replica.data(), &QIfMediaDiscoveryModelReplica::devicesChanged, this, &MediaDiscoveryBackend::onDevicesChanged);
connect(m_replica.data(), &QIfMediaDiscoveryModelReplica::deviceAdded, this, &MediaDiscoveryBackend::onDeviceAdded);
connect(m_replica.data(), &QIfMediaDiscoveryModelReplica::deviceRemoved, this, &MediaDiscoveryBackend::onDeviceRemoved);
}
#include "moc_mediadiscoverybackend.cpp"
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