qt-everywhere-src-5.14.1/qtconnectivity/examples/bluetooth/btchat/chat.cpp - orbit - Git at Google

 /****************************************************************************
 **
 ** Copyright (C) 2017 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part 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 "chat.h"
 #include "remoteselector.h"
 #include "chatserver.h"
 #include "chatclient.h"

 #include <QtCore/qdebug.h>

 #include <QtBluetooth/qbluetoothdeviceinfo.h>
 #include <QtBluetooth/qbluetoothlocaldevice.h>
 #include <QtBluetooth/qbluetoothuuid.h>

 #ifdef Q_OS_ANDROID
 #include <QtAndroidExtras/QtAndroid>
 #endif

 static const QLatin1String serviceUuid("e8e10f95-1a70-4b27-9ccf-02010264e9c8");
 #ifdef Q_OS_ANDROID
 static const QLatin1String reverseUuid("c8e96402-0102-cf9c-274b-701a950fe1e8");
 #endif

 Chat::Chat(QWidget *parent)
     : QDialog(parent), ui(new Ui_Chat)
 {
     //! [Construct UI]
     ui->setupUi(this);

     connect(ui->quitButton, &QPushButton::clicked, this, &Chat::accept);
     connect(ui->connectButton, &QPushButton::clicked, this, &Chat::connectClicked);
     connect(ui->sendButton, &QPushButton::clicked, this, &Chat::sendClicked);
     //! [Construct UI]

     localAdapters = QBluetoothLocalDevice::allDevices();
     if (localAdapters.count() < 2) {
         ui->localAdapterBox->setVisible(false);
     } else {
         //we ignore more than two adapters
         ui->localAdapterBox->setVisible(true);
         ui->firstAdapter->setText(tr("Default (%1)", "%1 = Bluetooth address").
                                   arg(localAdapters.at(0).address().toString()));
         ui->secondAdapter->setText(localAdapters.at(1).address().toString());
         ui->firstAdapter->setChecked(true);
         connect(ui->firstAdapter, &QRadioButton::clicked, this, &Chat::newAdapterSelected);
         connect(ui->secondAdapter, &QRadioButton::clicked, this, &Chat::newAdapterSelected);
         QBluetoothLocalDevice adapter(localAdapters.at(0).address());
         adapter.setHostMode(QBluetoothLocalDevice::HostDiscoverable);
     }

     //! [Create Chat Server]
     server = new ChatServer(this);
     connect(server, QOverload<const QString &>::of(&ChatServer::clientConnected),
             this, &Chat::clientConnected);
     connect(server, QOverload<const QString &>::of(&ChatServer::clientDisconnected),
             this,  QOverload<const QString &>::of(&Chat::clientDisconnected));
     connect(server, &ChatServer::messageReceived,
             this,  &Chat::showMessage);
     connect(this, &Chat::sendMessage, server, &ChatServer::sendMessage);
     server->startServer();
     //! [Create Chat Server]

     //! [Get local device name]
     localName = QBluetoothLocalDevice().name();
     //! [Get local device name]
 }

 Chat::~Chat()
 {
     qDeleteAll(clients);
     delete server;
 }

 //! [clientConnected clientDisconnected]
 void Chat::clientConnected(const QString &name)
 {
     ui->chat->insertPlainText(QString::fromLatin1("%1 has joined chat.\n").arg(name));
 }

 void Chat::clientDisconnected(const QString &name)
 {
     ui->chat->insertPlainText(QString::fromLatin1("%1 has left.\n").arg(name));
 }
 //! [clientConnected clientDisconnected]

 //! [connected]
 void Chat::connected(const QString &name)
 {
     ui->chat->insertPlainText(QString::fromLatin1("Joined chat with %1.\n").arg(name));
 }
 //! [connected]

 void Chat::newAdapterSelected()
 {
     const int newAdapterIndex = adapterFromUserSelection();
     if (currentAdapterIndex != newAdapterIndex) {
         server->stopServer();
         currentAdapterIndex = newAdapterIndex;
         const QBluetoothHostInfo info = localAdapters.at(currentAdapterIndex);
         QBluetoothLocalDevice adapter(info.address());
         adapter.setHostMode(QBluetoothLocalDevice::HostDiscoverable);
         server->startServer(info.address());
         localName = info.name();
     }
 }

 int Chat::adapterFromUserSelection() const
 {
     int result = 0;
     QBluetoothAddress newAdapter = localAdapters.at(0).address();

     if (ui->secondAdapter->isChecked()) {
         newAdapter = localAdapters.at(1).address();
         result = 1;
     }
     return result;
 }

 void Chat::reactOnSocketError(const QString &error)
 {
     ui->chat->insertPlainText(error);
 }

 //! [clientDisconnected]
 void Chat::clientDisconnected()
 {
     ChatClient *client = qobject_cast<ChatClient *>(sender());
     if (client) {
         clients.removeOne(client);
         client->deleteLater();
     }
 }
 //! [clientDisconnected]

 //! [Connect to remote service]
 void Chat::connectClicked()
 {
     ui->connectButton->setEnabled(false);

     // scan for services
     const QBluetoothAddress adapter = localAdapters.isEmpty() ?
                                            QBluetoothAddress() :
                                            localAdapters.at(currentAdapterIndex).address();

     RemoteSelector remoteSelector(adapter);
 #ifdef Q_OS_ANDROID
     if (QtAndroid::androidSdkVersion() >= 23)
         remoteSelector.startDiscovery(QBluetoothUuid(reverseUuid));
     else
         remoteSelector.startDiscovery(QBluetoothUuid(serviceUuid));
 #else
     remoteSelector.startDiscovery(QBluetoothUuid(serviceUuid));
 #endif
     if (remoteSelector.exec() == QDialog::Accepted) {
         QBluetoothServiceInfo service = remoteSelector.service();

         qDebug() << "Connecting to service 2" << service.serviceName()
                  << "on" << service.device().name();

         // Create client
         qDebug() << "Going to create client";
         ChatClient *client = new ChatClient(this);
 qDebug() << "Connecting...";

         connect(client, &ChatClient::messageReceived,
                 this, &Chat::showMessage);
         connect(client, &ChatClient::disconnected,
                 this, QOverload<>::of(&Chat::clientDisconnected));
         connect(client, QOverload<const QString &>::of(&ChatClient::connected),
                 this, &Chat::connected);
         connect(client, &ChatClient::socketErrorOccurred,
                 this, &Chat::reactOnSocketError);
         connect(this, &Chat::sendMessage, client, &ChatClient::sendMessage);
 qDebug() << "Start client";
         client->startClient(service);

         clients.append(client);
     }

     ui->connectButton->setEnabled(true);
 }
 //! [Connect to remote service]

 //! [sendClicked]
 void Chat::sendClicked()
 {
     ui->sendButton->setEnabled(false);
     ui->sendText->setEnabled(false);

     showMessage(localName, ui->sendText->text());
     emit sendMessage(ui->sendText->text());

     ui->sendText->clear();

     ui->sendText->setEnabled(true);
     ui->sendButton->setEnabled(true);
 }
 //! [sendClicked]

 //! [showMessage]
 void Chat::showMessage(const QString &sender, const QString &message)
 {
     ui->chat->insertPlainText(QString::fromLatin1("%1: %2\n").arg(sender, message));
     ui->chat->ensureCursorVisible();
 }
 //! [showMessage]
	/****************************************************************************
	**
	** Copyright (C) 2017 The Qt Company Ltd.
	** Contact: https://www.qt.io/licensing/
	**
	** This file is part 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 "chat.h"
	#include "remoteselector.h"
	#include "chatserver.h"
	#include "chatclient.h"

	#include <QtCore/qdebug.h>

	#include <QtBluetooth/qbluetoothdeviceinfo.h>
	#include <QtBluetooth/qbluetoothlocaldevice.h>
	#include <QtBluetooth/qbluetoothuuid.h>

	#ifdef Q_OS_ANDROID
	#include <QtAndroidExtras/QtAndroid>
	#endif

	static const QLatin1String serviceUuid("e8e10f95-1a70-4b27-9ccf-02010264e9c8");
	#ifdef Q_OS_ANDROID
	static const QLatin1String reverseUuid("c8e96402-0102-cf9c-274b-701a950fe1e8");
	#endif

	Chat::Chat(QWidget *parent)
	: QDialog(parent), ui(new Ui_Chat)
	{
	//! [Construct UI]
	ui->setupUi(this);

	connect(ui->quitButton, &QPushButton::clicked, this, &Chat::accept);
	connect(ui->connectButton, &QPushButton::clicked, this, &Chat::connectClicked);
	connect(ui->sendButton, &QPushButton::clicked, this, &Chat::sendClicked);
	//! [Construct UI]

	localAdapters = QBluetoothLocalDevice::allDevices();
	if (localAdapters.count() < 2) {
	ui->localAdapterBox->setVisible(false);
	} else {
	//we ignore more than two adapters
	ui->localAdapterBox->setVisible(true);
	ui->firstAdapter->setText(tr("Default (%1)", "%1 = Bluetooth address").
	arg(localAdapters.at(0).address().toString()));
	ui->secondAdapter->setText(localAdapters.at(1).address().toString());
	ui->firstAdapter->setChecked(true);
	connect(ui->firstAdapter, &QRadioButton::clicked, this, &Chat::newAdapterSelected);
	connect(ui->secondAdapter, &QRadioButton::clicked, this, &Chat::newAdapterSelected);
	QBluetoothLocalDevice adapter(localAdapters.at(0).address());
	adapter.setHostMode(QBluetoothLocalDevice::HostDiscoverable);
	}

	//! [Create Chat Server]
	server = new ChatServer(this);
	connect(server, QOverload<const QString &>::of(&ChatServer::clientConnected),
	this, &Chat::clientConnected);
	connect(server, QOverload<const QString &>::of(&ChatServer::clientDisconnected),
	this, QOverload<const QString &>::of(&Chat::clientDisconnected));
	connect(server, &ChatServer::messageReceived,
	this, &Chat::showMessage);
	connect(this, &Chat::sendMessage, server, &ChatServer::sendMessage);
	server->startServer();
	//! [Create Chat Server]

	//! [Get local device name]
	localName = QBluetoothLocalDevice().name();
	//! [Get local device name]
	}

	Chat::~Chat()
	{
	qDeleteAll(clients);
	delete server;
	}

	//! [clientConnected clientDisconnected]
	void Chat::clientConnected(const QString &name)
	{
	ui->chat->insertPlainText(QString::fromLatin1("%1 has joined chat.\n").arg(name));
	}

	void Chat::clientDisconnected(const QString &name)
	{
	ui->chat->insertPlainText(QString::fromLatin1("%1 has left.\n").arg(name));
	}
	//! [clientConnected clientDisconnected]

	//! [connected]
	void Chat::connected(const QString &name)
	{
	ui->chat->insertPlainText(QString::fromLatin1("Joined chat with %1.\n").arg(name));
	}
	//! [connected]

	void Chat::newAdapterSelected()
	{
	const int newAdapterIndex = adapterFromUserSelection();
	if (currentAdapterIndex != newAdapterIndex) {
	server->stopServer();
	currentAdapterIndex = newAdapterIndex;
	const QBluetoothHostInfo info = localAdapters.at(currentAdapterIndex);
	QBluetoothLocalDevice adapter(info.address());
	adapter.setHostMode(QBluetoothLocalDevice::HostDiscoverable);
	server->startServer(info.address());
	localName = info.name();
	}
	}

	int Chat::adapterFromUserSelection() const
	{
	int result = 0;
	QBluetoothAddress newAdapter = localAdapters.at(0).address();

	if (ui->secondAdapter->isChecked()) {
	newAdapter = localAdapters.at(1).address();
	result = 1;
	}
	return result;
	}

	void Chat::reactOnSocketError(const QString &error)
	{
	ui->chat->insertPlainText(error);
	}

	//! [clientDisconnected]
	void Chat::clientDisconnected()
	{
	ChatClient client = qobject_cast<ChatClient >(sender());
	if (client) {
	clients.removeOne(client);
	client->deleteLater();
	}
	}
	//! [clientDisconnected]

	//! [Connect to remote service]
	void Chat::connectClicked()
	{
	ui->connectButton->setEnabled(false);

	// scan for services
	const QBluetoothAddress adapter = localAdapters.isEmpty() ?
	QBluetoothAddress() :
	localAdapters.at(currentAdapterIndex).address();

	RemoteSelector remoteSelector(adapter);
	#ifdef Q_OS_ANDROID
	if (QtAndroid::androidSdkVersion() >= 23)
	remoteSelector.startDiscovery(QBluetoothUuid(reverseUuid));
	else
	remoteSelector.startDiscovery(QBluetoothUuid(serviceUuid));
	#else
	remoteSelector.startDiscovery(QBluetoothUuid(serviceUuid));
	#endif
	if (remoteSelector.exec() == QDialog::Accepted) {
	QBluetoothServiceInfo service = remoteSelector.service();

	qDebug() << "Connecting to service 2" << service.serviceName()
	<< "on" << service.device().name();

	// Create client
	qDebug() << "Going to create client";
	ChatClient *client = new ChatClient(this);
	qDebug() << "Connecting...";

	connect(client, &ChatClient::messageReceived,
	this, &Chat::showMessage);
	connect(client, &ChatClient::disconnected,
	this, QOverload<>::of(&Chat::clientDisconnected));
	connect(client, QOverload<const QString &>::of(&ChatClient::connected),
	this, &Chat::connected);
	connect(client, &ChatClient::socketErrorOccurred,
	this, &Chat::reactOnSocketError);
	connect(this, &Chat::sendMessage, client, &ChatClient::sendMessage);
	qDebug() << "Start client";
	client->startClient(service);

	clients.append(client);
	}

	ui->connectButton->setEnabled(true);
	}
	//! [Connect to remote service]

	//! [sendClicked]
	void Chat::sendClicked()
	{
	ui->sendButton->setEnabled(false);
	ui->sendText->setEnabled(false);

	showMessage(localName, ui->sendText->text());
	emit sendMessage(ui->sendText->text());

	ui->sendText->clear();

	ui->sendText->setEnabled(true);
	ui->sendButton->setEnabled(true);
	}
	//! [sendClicked]

	//! [showMessage]
	void Chat::showMessage(const QString &sender, const QString &message)
	{
	ui->chat->insertPlainText(QString::fromLatin1("%1: %2\n").arg(sender, message));
	ui->chat->ensureCursorVisible();
	}
	//! [showMessage]