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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include <QDir>
#include <QLibraryInfo>
#include <QtCore/private/qfactoryloader_p.h>
#include "qsensorgesturerecognizer.h"
#include "qsensorgesturemanagerprivate_p.h"
#include "qsensorgestureplugininterface.h"
Q_GLOBAL_STATIC(QSensorGestureManagerPrivate, sensorGestureManagerPrivate)
QT_BEGIN_NAMESPACE
QSensorGestureManagerPrivate::QSensorGestureManagerPrivate(QObject *parent) :
QObject(parent)
{
loader = new QFactoryLoader("org.qt-project.QSensorGesturePluginInterface", QLatin1String("/sensorgestures"));
loadPlugins();
}
QSensorGestureManagerPrivate::~QSensorGestureManagerPrivate()
{
// qDeleteAll(registeredSensorGestures);
// delete loader;
}
void QSensorGestureManagerPrivate::initPlugin(QObject *plugin)
{
if (QSensorGesturePluginInterface *pInterface
= qobject_cast<QSensorGesturePluginInterface *>(plugin)) {
for (const QString& id : pInterface->supportedIds()) {
if (!knownIds.contains(id))
knownIds.append(id);
else
qWarning() << id <<"from the plugin" << pInterface->name() << "is already known.";
}
plugins << plugin;
} else {
qWarning() << "Could not load "<< plugin;
}
}
/*!
Internal
Loads the sensorgesture plugins.
*/
void QSensorGestureManagerPrivate::loadPlugins()
{
for (QObject *plugin : QPluginLoader::staticInstances())
initPlugin(plugin);
QList<QPluginParsedMetaData> meta = loader->metaData();
for (int i = 0; i < meta.count(); i++) {
QObject *plugin = loader->instance(i);
initPlugin(plugin);
}
}
/*!
Internal
creates the requested recognizer.
*/
bool QSensorGestureManagerPrivate::loadRecognizer(const QString &recognizerId)
{
//if no plugin is used return true if this is a registered recognizer
if (registeredSensorGestures.contains(recognizerId))
return true;
for (int i= 0; i < plugins.count(); i++) {
if (QSensorGesturePluginInterface *pInterface
= qobject_cast<QSensorGesturePluginInterface *>(plugins.at(i))) {
if (pInterface->supportedIds().contains(recognizerId)) {
if (!registeredSensorGestures.contains(recognizerId)) {
//create these recognizers
QList <QSensorGestureRecognizer *> recognizers = pInterface->createRecognizers();
for (QSensorGestureRecognizer *recognizer : recognizers) {
if (registeredSensorGestures.contains(recognizer->id())) {
qWarning() << "Ignoring recognizer " << recognizer->id() << "from plugin" << pInterface->name() << "because it is already registered";
delete recognizer;
} else {
registeredSensorGestures.insert(recognizer->id(),recognizer);
}
}
}
return true;
}
}
}
return false;
}
bool QSensorGestureManagerPrivate::registerSensorGestureRecognizer(QSensorGestureRecognizer *recognizer)
{
if (!knownIds.contains(recognizer->id())) {
knownIds.append(recognizer->id());
Q_ASSERT (!registeredSensorGestures.contains(recognizer->id()));
recognizer->setParent(0);
registeredSensorGestures.insert(recognizer->id(),recognizer);
Q_EMIT newSensorGestureAvailable();
return true;
}
return false;
}
QSensorGestureRecognizer *QSensorGestureManagerPrivate::sensorGestureRecognizer(const QString &id)
{
QSensorGestureRecognizer *recognizer = 0;
if (loadRecognizer(id)) {
recognizer= registeredSensorGestures.value(id);
}
return recognizer;
}
QStringList QSensorGestureManagerPrivate::gestureIds()
{
return knownIds;
}
QSensorGestureManagerPrivate * QSensorGestureManagerPrivate::instance()
{
QSensorGestureManagerPrivate *priv = sensorGestureManagerPrivate();
// It's safe to return 0 because this is checked when used
//if (!priv) qFatal("Cannot return from QSensorGestureManagerPrivate::instance() because sensorGestureManagerPrivate() returned 0.");
return priv;
}
QT_END_NAMESPACE
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