/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the examples of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#include "chat.h"+
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#include <QtGui/QApplication>+
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#include <QtGui/QMessageBox>+
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+
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#include "chat_adaptor.h"+
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#include "chat_interface.h"+
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+
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ChatMainWindow::ChatMainWindow()+
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    : m_nickname(QLatin1String("nickname"))+
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{+
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    setupUi(this);+
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    sendButton->setEnabled(false);+
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+
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    connect(messageLineEdit, SIGNAL(textChanged(QString)),+
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            this, SLOT(textChangedSlot(QString)));+
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    connect(sendButton, SIGNAL(clicked(bool)), this, SLOT(sendClickedSlot()));+
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    connect(actionChangeNickname, SIGNAL(triggered(bool)), this, SLOT(changeNickname()));+
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    connect(actionAboutQt, SIGNAL(triggered(bool)), this, SLOT(aboutQt()));+
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    connect(qApp, SIGNAL(lastWindowClosed()), this, SLOT(exiting()));+
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+
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    // add our D-Bus interface and connect to D-Bus+
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    new ChatAdaptor(this);+
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    QDBusConnection::sessionBus().registerObject("/", this);+
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+
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    com::trolltech::chat *iface;+
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    iface = new com::trolltech::chat(QString(), QString(), QDBusConnection::sessionBus(), this);+
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    //connect(iface, SIGNAL(message(QString,QString)), this, SLOT(messageSlot(QString,QString)));+
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    QDBusConnection::sessionBus().connect(QString(), QString(), "com.trolltech.chat", "message", this, SLOT(messageSlot(QString,QString)));+
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    connect(iface, SIGNAL(action(QString,QString)), this, SLOT(actionSlot(QString,QString)));+
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+
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    NicknameDialog dialog;+
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    dialog.cancelButton->setVisible(false);+
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    dialog.exec();+
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    m_nickname = dialog.nickname->text().trimmed();+
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    emit action(m_nickname, QLatin1String("joins the chat"));+
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}+
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+
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ChatMainWindow::~ChatMainWindow()+
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{+
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}+
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+
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void ChatMainWindow::rebuildHistory()+
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{+
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    QString history = m_messages.join( QLatin1String("\n" ) );+
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    chatHistory->setPlainText(history);+
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}+
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+
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void ChatMainWindow::messageSlot(const QString &nickname, const QString &text)+
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{+
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    QString msg( QLatin1String("<%1> %2") );+
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    msg = msg.arg(nickname, text);+
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    m_messages.append(msg);+
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+
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    if (m_messages.count() > 100)+
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        m_messages.removeFirst();+
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    rebuildHistory();+
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}+
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+
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void ChatMainWindow::actionSlot(const QString &nickname, const QString &text)+
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{+
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    QString msg( QLatin1String("* %1 %2") );+
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    msg = msg.arg(nickname, text);+
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    m_messages.append(msg);+
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+
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    if (m_messages.count() > 100)+
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        m_messages.removeFirst();+
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    rebuildHistory();+
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}+
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+
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void ChatMainWindow::textChangedSlot(const QString &newText)+
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{+
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    sendButton->setEnabled(!newText.isEmpty());+
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}+
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+
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void ChatMainWindow::sendClickedSlot()+
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{+
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    //emit message(m_nickname, messageLineEdit->text());+
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    QDBusMessage msg = QDBusMessage::createSignal("/", "com.trolltech.chat", "message");+
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    msg << m_nickname << messageLineEdit->text();+
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    QDBusConnection::sessionBus().send(msg);+
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    messageLineEdit->setText(QString());+
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}+
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+
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void ChatMainWindow::changeNickname()+
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{+
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    NicknameDialog dialog(this);+
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    if (dialog.exec() == QDialog::Accepted) {+
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        QString old = m_nickname;+
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        m_nickname = dialog.nickname->text().trimmed();+
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        emit action(old, QString("is now known as %1").arg(m_nickname));+
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    }+
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}+
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+
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void ChatMainWindow::aboutQt()+
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{+
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    QMessageBox::aboutQt(this);+
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}+
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+
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void ChatMainWindow::exiting()+
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{+
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    emit action(m_nickname, QLatin1String("leaves the chat"));+
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}+
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+
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NicknameDialog::NicknameDialog(QWidget *parent)+
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    : QDialog(parent)+
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{+
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    setupUi(this);+
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}+
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+
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int main(int argc, char **argv)+
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{+
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    QApplication app(argc, argv);+
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+
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    if (!QDBusConnection::sessionBus().isConnected()) {+
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        qWarning("Cannot connect to the D-Bus session bus.\n"+
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                 "Please check your system settings and try again.\n");+
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        return 1;+
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    }+
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+
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    ChatMainWindow chat;+
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    chat.show();+
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    return app.exec();+
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}+
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