/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the QtSensors module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:GPL-EXCEPT$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 3 as published by the Free Software ** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT ** included in the packaging of this file. Please review the following ** information to ensure the GNU General Public License requirements will ** be met: https://www.gnu.org/licenses/gpl-3.0.html. ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include "test_sensorimpl.h" #include "test_sensor2impl.h" #include #include #include #include #include #include class TestSensorPlugin : public QObject, public QSensorPluginInterface, public QSensorChangesInterface, public QSensorBackendFactory { Q_OBJECT Q_PLUGIN_METADATA(IID "com.qt-project.Qt.QSensorPluginInterface/1.0") Q_INTERFACES(QSensorPluginInterface QSensorChangesInterface) public: void registerSensors() { static bool recursive = false; QVERIFY2(!recursive, "Recursively called TestSensorPlugin::registerSensors!"); if (recursive) return; recursive = true; // This is bad code. It caused a crash due to recursively calling // loadPlugins() in qsensormanager.cpp (because loadPlugins() did // not set the pluginsLoaded flag soon enough). (void)QSensor::defaultSensorForType(TestSensor::type); QSensorManager::registerBackend(TestSensor::type, testsensorimpl::id, this); QSensorManager::registerBackend(TestSensor::type, "test sensor 2", this); QSensorManager::registerBackend(TestSensor2::type, testsensor2impl::id, this); } void sensorsChanged() { // Register a new type on initial load // This is testing the "don't emit availableSensorsChanged() too many times" functionality. if (!QSensorManager::isBackendRegistered(TestSensor::type, "test sensor 3")) QSensorManager::registerBackend(TestSensor::type, "test sensor 3", this); // When a sensor of type "a random type" is registered, register another sensor. // This is testing the "don't emit availableSensorsChanged() too many times" functionality. if (!QSensor::defaultSensorForType("a random type").isEmpty()) { if (!QSensorManager::isBackendRegistered("a random type 2", "random.dynamic")) QSensorManager::registerBackend("a random type 2", "random.dynamic", this); } else { if (QSensorManager::isBackendRegistered("a random type 2", "random.dynamic")) QSensorManager::unregisterBackend("a random type 2", "random.dynamic"); } } QSensorBackend *createBackend(QSensor *sensor) { if (sensor->identifier() == testsensorimpl::id) { return new testsensorimpl(sensor); } if (sensor->identifier() == testsensor2impl::id) { return new testsensor2impl(sensor); } qWarning() << "Can't create backend" << sensor->identifier(); return 0; } }; Q_IMPORT_PLUGIN(TestSensorPlugin) #include "test_sensorplugin.moc"