tdecmodulecontainer.cpp

/* This file is part of the KDE libraries
    Copyright (C) 2004 Frans Englich <frans.englich@telia.com>

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
*/

#include <tqlayout.h>
#include <tqpixmap.h>
#include <tqstringlist.h>
#include <tqtabwidget.h>
#include <tqtooltip.h>
#include <tqvaluelist.h>

#include <tdecmodule.h>
#include <tdecmoduleinfo.h>
#include <tdecmoduleloader.h>
#include <tdecmoduleproxy.h>
#include <kdebug.h>
#include <kdialog.h>
#include <tdeglobal.h>
#include <kiconloader.h>
#include <kpushbutton.h>
#include <kservice.h>
#include <kstdguiitem.h>

#include "tdecmodulecontainer.h"
#include "tdecmodulecontainer.moc"

/***********************************************************************/
class TDECModuleContainer::TDECModuleContainerPrivate
{
    public:
        TDECModuleContainerPrivate( const TQStringList& mods )
            : modules( mods )
            , tabWidget( 0 )
            , buttons( 0 )
            , hasRootKCM( false )
            , btnRootMode( 0 )
            , btnLayout( 0 )
            , topLayout( 0 )
            {}

        TQStringList modules;
        TQTabWidget *tabWidget;
        int buttons;
        bool hasRootKCM: 1;
        KPushButton *btnRootMode;
        TQHBoxLayout *btnLayout;
        TQVBoxLayout *topLayout;
        TQString handbookSection;


};
/***********************************************************************/





/***********************************************************************/
TDECModuleContainer::TDECModuleContainer( TQWidget* parent, const char* name, 
    const TQString& mods )
    : TDECModule( parent, name )
{
    d = new TDECModuleContainerPrivate( TQStringList::split( ",", TQString(mods).remove( " " )) );
    init();
}

TDECModuleContainer::TDECModuleContainer( TQWidget* parent, const char* name, 
    const TQStringList& mods )
    : TDECModule( parent, name ), d( new TDECModuleContainerPrivate( mods ) )
{
    init();
}

void TDECModuleContainer::init()
{
    d->topLayout = new TQVBoxLayout( this, 0, KDialog::spacingHint(), "topLayout" );
    d->tabWidget = new TQTabWidget(this, "tabWidget");
    d->tabWidget->setMargin(KDialog::marginHint());
    connect( d->tabWidget, TQT_SIGNAL( currentChanged( TQWidget* ) ), TQT_SLOT( tabSwitched( TQWidget* ) ));
    d->topLayout->addWidget( d->tabWidget );

    if ( !d->modules.isEmpty() )
    {
        /* Add our modules */
        for ( TQStringList::Iterator it = d->modules.begin(); it != d->modules.end(); ++it )
            addModule( (*it) );

        finalize();
    }

}

void TDECModuleContainer::finalize()
{
    setButtons( d->buttons );
    if ( d->hasRootKCM ) /* Add a root mode button */
    {
        if(!d->btnLayout) /* It could already be added */
        {
            d->btnLayout = new TQHBoxLayout(this, 0, 0, "btnLayout");
            d->btnRootMode = new KPushButton(KStdGuiItem::adminMode(), this, "btnRootMode");
                    
            d->btnLayout->addWidget( d->btnRootMode );
            d->btnLayout->addStretch();
            d->topLayout->addLayout( d->btnLayout );
        }
    }
}

void TDECModuleContainer::addModule( const TQString& module )
{
    /* In case it doesn't exist we just silently drop it.
     * This allows people to easily extend containers.
     * For example, KCM monitor gamma can be in tdegraphics.
     */
    if ( !KService::serviceByDesktopName( module ) )
    {
        kdDebug(713) << "TDECModuleContainer: module '" << 
            module << "' was not found and thus not loaded" << endl;
        return;
    }

    if( !TDECModuleLoader::testModule( module )) {
        return;
    }

    TDECModuleProxy* proxy = new TDECModuleProxy( module, false, d->tabWidget, module.latin1());
    if (allModules.count() < 1) {
        d->handbookSection = proxy->handbookSection();
    }
    allModules.append( proxy );

    d->tabWidget->addTab( proxy, TQIconSet(TDEGlobal::iconLoader()->loadIcon(
                    proxy->moduleInfo().icon(), TDEIcon::Desktop)),
            /* QT eats ampersands for dinner. But not this time. */
            proxy->moduleInfo().moduleName().replace( "&", "&&" ));

    d->tabWidget->setTabToolTip( proxy, proxy->moduleInfo().comment() );

    connect( proxy, TQT_SIGNAL(changed(TDECModuleProxy *)), TQT_SLOT(moduleChanged(TDECModuleProxy *)));

    /* Collect our buttons - we go for the common deliminator */
    d->buttons = d->buttons | proxy->realModule()->buttons();

    /* If we should add an Administrator Mode button */
    if ( proxy->moduleInfo().needsRootPrivileges() ) {
        d->hasRootKCM=true;
    }
}

void TDECModuleContainer::tabSwitched( TQWidget * module )
{
    TDECModuleProxy* mod = (TDECModuleProxy *) module;
    d->handbookSection = mod->handbookSection();

    if ( !d->hasRootKCM ) {
        return;
    }

    /* Not like this. Not like this. */
    disconnect( d->btnRootMode, 0, 0, 0 );
    /* Welcome to the real world huh baby? */

    if ( mod->moduleInfo().needsRootPrivileges() && !mod->rootMode() ) {
        d->btnRootMode->setEnabled( true );
        connect( d->btnRootMode, TQT_SIGNAL( clicked() ), 
                TQT_SLOT( runAsRoot() ));
        connect( mod, TQT_SIGNAL( childClosed() ), 
                TQT_SLOT ( rootExited() ));
    }
    else {
        d->btnRootMode->setEnabled( false );
    }

    setQuickHelp( mod->quickHelp() );
    setAboutData( const_cast<TDEAboutData*>(mod->aboutData()) );
}

TQString TDECModuleContainer::handbookSection() const
{
    return d->handbookSection;
}

void TDECModuleContainer::runAsRoot()
{
    if ( d->tabWidget->currentPage() )
        ( (TDECModuleProxy *) d->tabWidget->currentPage() )->runAsRoot();
    d->btnRootMode->setEnabled( false );
}

void TDECModuleContainer::rootExited()
{
    connect( d->btnRootMode, TQT_SIGNAL( clicked() ), TQT_SLOT( runAsRoot() ));
    d->btnRootMode->setEnabled( true );
}

void TDECModuleContainer::save()
{
    ModuleList list = changedModules;
    ModuleList::iterator it;
    for ( it = list.begin() ; it !=list.end() ; ++it )
    {
        (*it)->save();
    }

    emit changed( false );

}

void TDECModuleContainer::load()
{
    ModuleList list = allModules;
    ModuleList::iterator it;
    for ( it = list.begin() ; it !=list.end() ; ++it )
    {
        (*it)->load();
    }

    emit changed( false );
}

void TDECModuleContainer::defaults()
{
    ModuleList list = allModules;
    ModuleList::iterator it;
    for ( it = list.begin() ; it !=list.end() ; ++it )
    {
        (*it)->defaults();
    }

    emit changed( true );
}


void TDECModuleContainer::moduleChanged(TDECModuleProxy * proxy)
{
    changedModules.append( proxy );
    if( changedModules.isEmpty() )
        return;

    emit changed(true);
}

TDECModuleContainer::~TDECModuleContainer()
{
    delete d;
}

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