| /*************************************************************************** |
| ** |
| ** Copyright (C) 2017 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the examples of the QtBluetooth module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:BSD$ |
| ** 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. |
| ** |
| ** BSD License Usage |
| ** Alternatively, you may use this file under the terms of the BSD license |
| ** as follows: |
| ** |
| ** "Redistribution and use in source and binary forms, with or without |
| ** modification, are permitted provided that the following conditions are |
| ** met: |
| ** * Redistributions of source code must retain the above copyright |
| ** notice, this list of conditions and the following disclaimer. |
| ** * Redistributions in binary form must reproduce the above copyright |
| ** notice, this list of conditions and the following disclaimer in |
| ** the documentation and/or other materials provided with the |
| ** distribution. |
| ** * Neither the name of The Qt Company Ltd nor the names of its |
| ** contributors may be used to endorse or promote products derived |
| ** from this software without specific prior written permission. |
| ** |
| ** |
| ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include "devicefinder.h" |
| #include "devicehandler.h" |
| #include "deviceinfo.h" |
| |
| DeviceFinder::DeviceFinder(DeviceHandler *handler, QObject *parent): |
| BluetoothBaseClass(parent), |
| m_deviceHandler(handler) |
| { |
| //! [devicediscovery-1] |
| m_deviceDiscoveryAgent = new QBluetoothDeviceDiscoveryAgent(this); |
| m_deviceDiscoveryAgent->setLowEnergyDiscoveryTimeout(5000); |
| |
| connect(m_deviceDiscoveryAgent, &QBluetoothDeviceDiscoveryAgent::deviceDiscovered, this, &DeviceFinder::addDevice); |
| connect(m_deviceDiscoveryAgent, static_cast<void (QBluetoothDeviceDiscoveryAgent::*)(QBluetoothDeviceDiscoveryAgent::Error)>(&QBluetoothDeviceDiscoveryAgent::error), |
| this, &DeviceFinder::scanError); |
| |
| connect(m_deviceDiscoveryAgent, &QBluetoothDeviceDiscoveryAgent::finished, this, &DeviceFinder::scanFinished); |
| connect(m_deviceDiscoveryAgent, &QBluetoothDeviceDiscoveryAgent::canceled, this, &DeviceFinder::scanFinished); |
| //! [devicediscovery-1] |
| |
| |
| #ifdef SIMULATOR |
| m_demoTimer.setSingleShot(true); |
| m_demoTimer.setInterval(2000); |
| connect(&m_demoTimer, &QTimer::timeout, this, &DeviceFinder::scanFinished); |
| #endif |
| } |
| |
| DeviceFinder::~DeviceFinder() |
| { |
| qDeleteAll(m_devices); |
| m_devices.clear(); |
| } |
| |
| void DeviceFinder::startSearch() |
| { |
| clearMessages(); |
| m_deviceHandler->setDevice(nullptr); |
| qDeleteAll(m_devices); |
| m_devices.clear(); |
| |
| emit devicesChanged(); |
| |
| #ifdef SIMULATOR |
| m_demoTimer.start(); |
| #else |
| //! [devicediscovery-2] |
| m_deviceDiscoveryAgent->start(QBluetoothDeviceDiscoveryAgent::LowEnergyMethod); |
| //! [devicediscovery-2] |
| #endif |
| emit scanningChanged(); |
| setInfo(tr("Scanning for devices...")); |
| } |
| |
| //! [devicediscovery-3] |
| void DeviceFinder::addDevice(const QBluetoothDeviceInfo &device) |
| { |
| // If device is LowEnergy-device, add it to the list |
| if (device.coreConfigurations() & QBluetoothDeviceInfo::LowEnergyCoreConfiguration) { |
| m_devices.append(new DeviceInfo(device)); |
| setInfo(tr("Low Energy device found. Scanning more...")); |
| //! [devicediscovery-3] |
| emit devicesChanged(); |
| //! [devicediscovery-4] |
| } |
| //... |
| } |
| //! [devicediscovery-4] |
| |
| void DeviceFinder::scanError(QBluetoothDeviceDiscoveryAgent::Error error) |
| { |
| if (error == QBluetoothDeviceDiscoveryAgent::PoweredOffError) |
| setError(tr("The Bluetooth adaptor is powered off.")); |
| else if (error == QBluetoothDeviceDiscoveryAgent::InputOutputError) |
| setError(tr("Writing or reading from the device resulted in an error.")); |
| else |
| setError(tr("An unknown error has occurred.")); |
| } |
| |
| void DeviceFinder::scanFinished() |
| { |
| #ifdef SIMULATOR |
| // Only for testing |
| for (int i = 0; i < 4; i++) |
| m_devices.append(new DeviceInfo(QBluetoothDeviceInfo())); |
| #endif |
| |
| if (m_devices.isEmpty()) |
| setError(tr("No Low Energy devices found.")); |
| else |
| setInfo(tr("Scanning done.")); |
| |
| emit scanningChanged(); |
| emit devicesChanged(); |
| } |
| |
| void DeviceFinder::connectToService(const QString &address) |
| { |
| m_deviceDiscoveryAgent->stop(); |
| |
| DeviceInfo *currentDevice = nullptr; |
| for (QObject *entry : qAsConst(m_devices)) { |
| auto device = qobject_cast<DeviceInfo *>(entry); |
| if (device && device->getAddress() == address ) { |
| currentDevice = device; |
| break; |
| } |
| } |
| |
| if (currentDevice) |
| m_deviceHandler->setDevice(currentDevice); |
| |
| clearMessages(); |
| } |
| |
| bool DeviceFinder::scanning() const |
| { |
| #ifdef SIMULATOR |
| return m_demoTimer.isActive(); |
| #else |
| return m_deviceDiscoveryAgent->isActive(); |
| #endif |
| } |
| |
| QVariant DeviceFinder::devices() |
| { |
| return QVariant::fromValue(m_devices); |
| } |