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Alex Blasche authored
Previously the error was indicated but other UI elements were still giving the impression that the scan was ongoing. Change-Id: Iafab8f43bff3303eb6ad5e3385db2f81288d2e66 Reviewed-by:
Timur Pocheptsov <Timur.Pocheptsov@digia.com> Reviewed-by:
Alex Blasche <alexander.blasche@digia.com>
0b42f1e6
device.cpp 9.85 KiB
/******************************************************************************* Copyright (C) 2013 BlackBerry Limited. All rights reserved.** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).** Contact: http://www.qt-project.org/legal**** This file is part of the QtBluetooth module of the Qt Toolkit.**** $QT_BEGIN_LICENSE:BSD$** 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 Digia Plc and its Subsidiary(-ies) 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 "device.h"#include <qbluetoothaddress.h>#include <qbluetoothdevicediscoveryagent.h>#include <qbluetoothlocaldevice.h>#include <qbluetoothdeviceinfo.h>#include <qbluetoothservicediscoveryagent.h>#include <QDebug>#include <QList>#include <QTimer>Device::Device(): connected(false), controller(0), m_deviceScanState(false), randomAddress(false){ //! [les-devicediscovery-1] discoveryAgent = new QBluetoothDeviceDiscoveryAgent(); connect(discoveryAgent, SIGNAL(deviceDiscovered(const QBluetoothDeviceInfo&)), this, SLOT(addDevice(const QBluetoothDeviceInfo&))); connect(discoveryAgent, SIGNAL(error(QBluetoothDeviceDiscoveryAgent::Error)), this, SLOT(deviceScanError(QBluetoothDeviceDiscoveryAgent::Error))); connect(discoveryAgent, SIGNAL(finished()), this, SLOT(deviceScanFinished())); //! [les-devicediscovery-1] setUpdate("Search");}Device::~Device(){ delete discoveryAgent; delete controller;7172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140
qDeleteAll(devices);
qDeleteAll(m_services);
qDeleteAll(m_characteristics);
devices.clear();
m_services.clear();
m_characteristics.clear();
}
void Device::startDeviceDiscovery()
{
qDeleteAll(devices);
devices.clear();
emit devicesUpdated();
setUpdate("Scanning for devices ...");
//! [les-devicediscovery-2]
discoveryAgent->start();
//! [les-devicediscovery-2]
if (discoveryAgent->isActive()) {
m_deviceScanState = true;
Q_EMIT stateChanged();
}
}
//! [les-devicediscovery-3]
void Device::addDevice(const QBluetoothDeviceInfo &info)
{
if (info.coreConfigurations() & QBluetoothDeviceInfo::LowEnergyCoreConfiguration) {
DeviceInfo *d = new DeviceInfo(info);
devices.append(d);
setUpdate("Last device added: " + d->getName());
}
}
//! [les-devicediscovery-3]
void Device::deviceScanFinished()
{
emit devicesUpdated();
m_deviceScanState = false;
emit stateChanged();
if (devices.isEmpty())
setUpdate("No Low Energy devices found...");
else
setUpdate("Done! Scan Again!");
}
QVariant Device::getDevices()
{
return QVariant::fromValue(devices);
}
QVariant Device::getServices()
{
return QVariant::fromValue(m_services);
}
QVariant Device::getCharacteristics()
{
return QVariant::fromValue(m_characteristics);
}
QString Device::getUpdate()
{
return m_message;
}
void Device::scanServices(const QString &address)
{
// We need the current device for service discovery.
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for (int i = 0; i < devices.size(); i++) {
if (((DeviceInfo*)devices.at(i))->getAddress() == address )
currentDevice.setDevice(((DeviceInfo*)devices.at(i))->getDevice());
}
if (!currentDevice.getDevice().isValid()) {
qWarning() << "Not a valid device";
return;
}
qDeleteAll(m_characteristics);
m_characteristics.clear();
emit characteristicsUpdated();
qDeleteAll(m_services);
m_services.clear();
emit servicesUpdated();
setUpdate("Connecting to device...");
if (controller && controller->remoteAddress() != currentDevice.getDevice().address()) {
controller->disconnectFromDevice();
delete controller;
controller = 0;
}
//! [les-controller-1]
if (!controller) {
// Connecting signals and slots for connecting to LE services.
controller = new QLowEnergyController(currentDevice.getDevice().address());
connect(controller, SIGNAL(connected()),
this, SLOT(deviceConnected()));
connect(controller, SIGNAL(error(QLowEnergyController::Error)),
this, SLOT(errorReceived(QLowEnergyController::Error)));
connect(controller, SIGNAL(disconnected()),
this, SLOT(deviceDisconnected()));
connect(controller, SIGNAL(serviceDiscovered(QBluetoothUuid)),
this, SLOT(addLowEnergyService(QBluetoothUuid)));
connect(controller, SIGNAL(discoveryFinished()),
this, SLOT(serviceScanDone()));
}
if (isRandomAddress())
controller->setRemoteAddressType(QLowEnergyController::RandomAddress);
else
controller->setRemoteAddressType(QLowEnergyController::PublicAddress);
controller->connectToDevice();
//! [les-controller-1]
}
void Device::addLowEnergyService(const QBluetoothUuid &serviceUuid)
{
//! [les-service-1]
QLowEnergyService *service = controller->createServiceObject(serviceUuid);
if (!service) {
qWarning() << "Cannot create service for uuid";
return;
}
//! [les-service-1]
ServiceInfo *serv = new ServiceInfo(service);
m_services.append(serv);
emit servicesUpdated();
}
//! [les-service-1]
void Device::serviceScanDone()
{
setUpdate("Service scan done!");
}
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void Device::connectToService(const QString &uuid)
{
QLowEnergyService *service = 0;
for (int i = 0; i < m_services.size(); i++) {
ServiceInfo *serviceInfo = (ServiceInfo*)m_services.at(i);
if (serviceInfo->getUuid() == uuid) {
service = serviceInfo->service();
break;
}
}
if (!service)
return;
qDeleteAll(m_characteristics);
m_characteristics.clear();
emit characteristicsUpdated();
if (service->state() == QLowEnergyService::DiscoveryRequired) {
//! [les-service-3]
connect(service, SIGNAL(stateChanged(QLowEnergyService::ServiceState)),
this, SLOT(serviceDetailsDiscovered(QLowEnergyService::ServiceState)));
service->discoverDetails();
//! [les-service-3]
return;
}
//discovery already done
const QList<QLowEnergyCharacteristic> chars = service->characteristics();
foreach (const QLowEnergyCharacteristic &ch, chars) {
CharacteristicInfo *cInfo = new CharacteristicInfo(ch);
m_characteristics.append(cInfo);
}
QTimer::singleShot(0, this, SIGNAL(characteristicsUpdated()));
}
void Device::deviceConnected()
{
setUpdate("Discovering services!");
connected = true;
//! [les-service-2]
controller->discoverServices();
//! [les-service-2]
}
void Device::errorReceived(QLowEnergyController::Error /*error*/)
{
qWarning() << "Error: " << controller->errorString();
setUpdate(QString("Back\n(%1)").arg(controller->errorString()));
}
void Device::setUpdate(QString message)
{
m_message = message;
emit updateChanged();
}
void Device::disconnectFromDevice()
{
controller->disconnectFromDevice();
}
void Device::deviceDisconnected()
{
qWarning() << "Disconnect from device";
emit disconnected();
}
void Device::serviceDetailsDiscovered(QLowEnergyService::ServiceState newState)
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{
if (newState != QLowEnergyService::ServiceDiscovered)
return;
QLowEnergyService *service = qobject_cast<QLowEnergyService *>(sender());
if (!service)
return;
//! [les-chars]
const QList<QLowEnergyCharacteristic> chars = service->characteristics();
foreach (const QLowEnergyCharacteristic &ch, chars) {
CharacteristicInfo *cInfo = new CharacteristicInfo(ch);
m_characteristics.append(cInfo);
}
//! [les-chars]
emit characteristicsUpdated();
}
void Device::deviceScanError(QBluetoothDeviceDiscoveryAgent::Error error)
{
if (error == QBluetoothDeviceDiscoveryAgent::PoweredOffError)
setUpdate("The Bluetooth adaptor is powered off, power it on before doing discovery.");
else if (error == QBluetoothDeviceDiscoveryAgent::InputOutputError)
setUpdate("Writing or reading from the device resulted in an error.");
else
setUpdate("An unknown error has occurred.");
m_deviceScanState = false;
emit devicesUpdated();
emit stateChanged();
}
bool Device::state()
{
return m_deviceScanState;
}
bool Device::isRandomAddress() const
{
return randomAddress;
}
void Device::setRandomAddress(bool newValue)
{
randomAddress = newValue;
emit randomAddressChanged();
}