/****************************************************************************

**

** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the examples of the Qt Toolkit.

**

**

**

** $QT_END_LICENSE$

**

****************************************************************************/

#include "chat.h"

#include <QtGui/QApplication>

#include <QtGui/QMessageBox>

#include "chat_adaptor.h"

#include "chat_interface.h"

ChatMainWindow::ChatMainWindow()

    : m_nickname(QLatin1String("nickname"))

{

    setupUi(this);

    sendButton->setEnabled(false);

    connect(messageLineEdit, SIGNAL(textChanged(QString)),

            this, SLOT(textChangedSlot(QString)));

    connect(sendButton, SIGNAL(clicked(bool)), this, SLOT(sendClickedSlot()));

    connect(actionChangeNickname, SIGNAL(triggered(bool)), this, SLOT(changeNickname()));

    connect(actionAboutQt, SIGNAL(triggered(bool)), this, SLOT(aboutQt()));

    connect(qApp, SIGNAL(lastWindowClosed()), this, SLOT(exiting()));

    // add our D-Bus interface and connect to D-Bus

    new ChatAdaptor(this);

    QDBusConnection::sessionBus().registerObject("/", this);

    com::trolltech::chat *iface;

    iface = new com::trolltech::chat(QString(), QString(), QDBusConnection::sessionBus(), this);

    //connect(iface, SIGNAL(message(QString,QString)), this, SLOT(messageSlot(QString,QString)));

    QDBusConnection::sessionBus().connect(QString(), QString(), "com.trolltech.chat", "message", this, SLOT(messageSlot(QString,QString)));

    connect(iface, SIGNAL(action(QString,QString)), this, SLOT(actionSlot(QString,QString)));

    NicknameDialog dialog;

    dialog.cancelButton->setVisible(false);

    dialog.exec();

    m_nickname = dialog.nickname->text().trimmed();

    emit action(m_nickname, QLatin1String("joins the chat"));

}

ChatMainWindow::~ChatMainWindow()

{

}

void ChatMainWindow::rebuildHistory()

{

    QString history = m_messages.join( QLatin1String("\n" ) );

    chatHistory->setPlainText(history);

}

void ChatMainWindow::messageSlot(const QString &nickname, const QString &text)

{

    QString msg( QLatin1String("<%1> %2") );

    msg = msg.arg(nickname, text);

    m_messages.append(msg);

    if (m_messages.count() > 100)

        m_messages.removeFirst();

    rebuildHistory();

}

void ChatMainWindow::actionSlot(const QString &nickname, const QString &text)

{

    QString msg( QLatin1String("* %1 %2") );

    msg = msg.arg(nickname, text);

    m_messages.append(msg);

    if (m_messages.count() > 100)

        m_messages.removeFirst();

    rebuildHistory();

}

void ChatMainWindow::textChangedSlot(const QString &newText)

{

    sendButton->setEnabled(!newText.isEmpty());

}

void ChatMainWindow::sendClickedSlot()

{

    //emit message(m_nickname, messageLineEdit->text());

    QDBusMessage msg = QDBusMessage::createSignal("/", "com.trolltech.chat", "message");

    msg << m_nickname << messageLineEdit->text();

    QDBusConnection::sessionBus().send(msg);

    messageLineEdit->setText(QString());

}

void ChatMainWindow::changeNickname()

{

    NicknameDialog dialog(this);

    if (dialog.exec() == QDialog::Accepted) {

        QString old = m_nickname;

        m_nickname = dialog.nickname->text().trimmed();

        emit action(old, QString("is now known as %1").arg(m_nickname));

    }

}

void ChatMainWindow::aboutQt()

{

    QMessageBox::aboutQt(this);

}

void ChatMainWindow::exiting()

{

    emit action(m_nickname, QLatin1String("leaves the chat"));

}

NicknameDialog::NicknameDialog(QWidget *parent)

    : QDialog(parent)

{

    setupUi(this);

}

int main(int argc, char **argv)

{

    QApplication app(argc, argv);

    if (!QDBusConnection::sessionBus().isConnected()) {

        qWarning("Cannot connect to the D-Bus session bus.\n"

                 "Please check your system settings and try again.\n");

        return 1;

    }

    ChatMainWindow chat;

    chat.show();

    return app.exec();

}