main.cpp

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/****************************************************************************
**
** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
**
** This file is part of the Qt Assistant of the Qt Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of
** this file.  Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/
**
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at [e-mail].
**
** In addition, as a special exception, Trolltech gives you certain
** additional rights. These rights are described in the Trolltech GPL
** Exception version 1.0, which can be found at
** http://www.trolltech.com/products/qt/gplexception/ and in the file
** GPL_EXCEPTION.txt in this package.
**
** In addition, as a special exception, Trolltech, as the sole copyright
** holder for Qt Designer, grants users of the Qt/Eclipse Integration
** plug-in the right for the Qt/Eclipse Integration to link to
** functionality provided by Qt Designer and its related libraries.
**
** Trolltech reserves all rights not expressly granted herein.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/

#include "mainwindow.h"
#include "helpdialog.h"
#include "config.h"

#include <QTcpServer>
#include <QTcpSocket>
#include <QApplication>
#include <QPixmap>
#include <QStringList>
#include <QDir>
#include <QMessageBox>
#include <QPointer>
#include <QTranslator>
#include <QLibraryInfo>
#include <QLocale>
#include <stdlib.h>
#include <stdio.h>

#if defined(USE_STATIC_JPEG_PLUGIN)
  #include <QtPlugin>
  Q_IMPORT_PLUGIN(qjpeg)
#endif

#define INDEX_CHECK( text ) if( i+1 >= argc ) { fprintf(stderr, "%s\n", text); return 1; }


#if !defined(QT_NO_DBUS) && defined(Q_OS_UNIX)
#include <QtDBus/QDBusConnection>
#include <QtDBus/QDBusAbstractAdaptor>
#include <QtDBus/QDBusObjectPath>
#include "tabbedbrowser.h"

class HelpWindowAdaptor : public QDBusAbstractAdaptor
{
    Q_OBJECT
    Q_CLASSINFO("D-Bus Interface", "com.trolltech.Assistant.HelpWindow")

    Q_PROPERTY(QString source READ source WRITE setSource)

public:
    HelpWindowAdaptor(HelpWindow *w) : QDBusAbstractAdaptor(w), helpWindow(w)
    {
        setAutoRelaySignals(true);
    }

public Q_SLOTS:
    inline QString source() const { return helpWindow->source().toString(); }
    inline void setSource(const QString &src) { helpWindow->setSource(src); }

    inline void clearHistory() { helpWindow->clearHistory(); }
    inline void backward() { helpWindow->backward(); }
    inline void forward() { helpWindow->forward(); }
    inline void reload() { helpWindow->reload(); }
    inline void home() { helpWindow->home(); }

private:
    HelpWindow *helpWindow;
};

class AssistantAdaptor : public QDBusAbstractAdaptor
{
    Q_OBJECT
    Q_CLASSINFO("D-Bus Interface", "com.trolltech.Assistant.HelpViewer")

public:
    AssistantAdaptor(MainWindow *mw) : QDBusAbstractAdaptor(mw), mw(mw)
    {
        QDBusConnection connection = QDBusConnection::sessionBus();
        connection.registerService(QLatin1String("com.trolltech.Assistant"));
        connection.registerObject(QLatin1String("/Assistant"), mw);
    }

public slots:
    void showLink(const QString &link) { mw->showLink(link); }
    QDBusObjectPath createNewTab();
    QDBusObjectPath currentTab();

private:
    QDBusObjectPath pathForBrowser(HelpWindow *window);
    MainWindow *mw;
};

QDBusObjectPath AssistantAdaptor::createNewTab()
{
    HelpWindow *window = mw->browsers()->newBackgroundTab();
    return pathForBrowser(window);
}

QDBusObjectPath AssistantAdaptor::currentTab()
{
    HelpWindow *window = mw->browsers()->currentBrowser();
    return pathForBrowser(window);
}

QDBusObjectPath AssistantAdaptor::pathForBrowser(HelpWindow *window)
{
    int index = mw->browsers()->browsers().indexOf(window);
    if (index == -1)
        return QDBusObjectPath();

    QString name(QLatin1String("/Assistant/Tabs/"));
    name += QString::number(index);
    QDBusObjectPath path(name);

    if (!window->findChild<HelpWindowAdaptor *>()) {
        (void)new HelpWindowAdaptor(window);
        QDBusConnection::sessionBus().registerObject(name, window);
    }

    return path;
}

#endif // QT_NO_DBUS

class AssistantSocket : public QTcpSocket
{
    Q_OBJECT
public:
    AssistantSocket( int sock, QObject *parent = 0 );
    ~AssistantSocket() {}

signals:
    void showLinkRequest( const QString& );

private slots:
    void readClient();
    void connectionClosed();
};


class AssistantServer : public QTcpServer
{
    Q_OBJECT
public:
    AssistantServer( QObject* parent = 0 );
    quint16 getPort() const;

signals:
    void showLinkRequest( const QString& );
    void newConnect();

public slots:
    virtual void incomingConnection( int socket );

private:
    quint16 p;
};

AssistantSocket::AssistantSocket( int sock, QObject *parent )
    : QTcpSocket( parent )
{
    connect( this, SIGNAL(readyRead()), SLOT(readClient()) );
    connect( this, SIGNAL(disconnected()), SLOT(connectionClosed()) );
    setSocketDescriptor( sock );
}

void AssistantSocket::readClient()
{
    QString link = QString();
    while ( canReadLine() )
        link = QLatin1String(readLine());
    if ( !link.isNull() ) {
        link = link.replace(QLatin1String("\n"), QLatin1String(""));
        link = link.replace(QLatin1String("\r"), QLatin1String(""));
        QFileInfo fi(link);
        link = fi.absoluteFilePath();
        emit showLinkRequest( link );
    }
}

void AssistantSocket::connectionClosed()
{
    deleteLater();
}

AssistantServer::AssistantServer( QObject *parent )
    : QTcpServer( parent )
{
    listen(QHostAddress::LocalHost, 0);
    if ( !isListening() ) {
        QMessageBox::critical( 0, tr( "Qt Assistant" ),
                tr( "Failed to bind to port %1" ).arg( serverPort() ) );
        exit( 1 );
    }
    p = serverPort();
}

quint16 AssistantServer::getPort() const