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Diffstat (limited to 'examples/dbus/dbus-chat/chat.cpp')
-rw-r--r-- | examples/dbus/dbus-chat/chat.cpp | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/examples/dbus/dbus-chat/chat.cpp b/examples/dbus/dbus-chat/chat.cpp new file mode 100644 index 0000000000..5cc12caafa --- /dev/null +++ b/examples/dbus/dbus-chat/chat.cpp @@ -0,0 +1,163 @@ +/**************************************************************************** +** +** Copyright (C) 2011 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. +** +** $QT_BEGIN_LICENSE:BSD$ +** 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 Nokia Corporation 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 "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(); +} |