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152 lines
4.5 KiB
152 lines
4.5 KiB
/* This file is part of the KDE project
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Copyright (C) 2002 Lubos Lunak <l.lunak@kde.org>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include "preloader.h"
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#include "konq_settingsxt.h"
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#include <kconfig.h>
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#include <dcopref.h>
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#include <kapplication.h>
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#include <dcopclient.h>
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#include <kdebug.h>
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KonqyPreloader::KonqyPreloader( const TQCString& obj )
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: KDEDModule( obj )
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{
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reconfigure();
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connect( kapp->dcopClient(), TQT_SIGNAL( applicationRemoved( const TQCString& )),
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TQT_SLOT( appRemoved( const TQCString& )));
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connect( &check_always_preloaded_timer, TQT_SIGNAL( timeout()),
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TQT_SLOT( checkAlwaysPreloaded()));
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}
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KonqyPreloader::~KonqyPreloader()
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{
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updateCount();
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}
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bool KonqyPreloader::registerPreloadedKonqy( TQCString id, int screen )
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{
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if( instances.count() >= (uint)KonqSettings::maxPreloadCount() )
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return false;
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instances.append( KonqyData( id, screen ));
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return true;
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}
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TQCString KonqyPreloader::getPreloadedKonqy( int screen )
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{
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if( instances.count() == 0 )
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return "";
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for( InstancesList::Iterator it = instances.begin();
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it != instances.end();
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++it )
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{
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if( (*it).screen == screen )
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{
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TQCString ret = (*it).id;
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instances.remove( it );
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check_always_preloaded_timer.start( 5000, true );
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return ret;
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}
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}
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return "";
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}
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void KonqyPreloader::unregisterPreloadedKonqy( TQCString id_P )
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{
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for( InstancesList::Iterator it = instances.begin();
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it != instances.end();
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++it )
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if( (*it).id == id_P )
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{
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instances.remove( it );
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return;
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}
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}
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void KonqyPreloader::appRemoved( const TQCString& id )
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{
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unregisterPreloadedKonqy( id );
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}
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void KonqyPreloader::reconfigure()
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{
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KonqSettings::self()->readConfig();
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updateCount();
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// Ignore "PreloadOnStartup" here, it's used by the .desktop file
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// in the autostart folder, which will do 'konqueror --preload' in autostart
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// phase 2. This will also cause activation of this kded module.
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}
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void KonqyPreloader::updateCount()
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{
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while( instances.count() > (uint)KonqSettings::maxPreloadCount() )
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{
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KonqyData konqy = instances.first();
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instances.pop_front();
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DCOPRef ref( konqy.id, "KonquerorIface" );
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ref.send( "terminatePreloaded" );
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}
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if( KonqSettings::alwaysHavePreloaded() &&
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KonqSettings::maxPreloadCount() > 0 &&
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instances.count() == 0 )
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{
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if( !check_always_preloaded_timer.isActive())
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{
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if( kapp->tdeinitExec( TQString::tqfromLatin1( "konqueror" ),
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TQStringList() << TQString::tqfromLatin1( "--preload" ), NULL, NULL, "0" ) == 0 )
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{
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kdDebug( 1202 ) << "Preloading Konqueror instance" << endl;
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check_always_preloaded_timer.start( 5000, true );
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}
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// else do nothing, the launching failed
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}
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}
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}
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// have 5s interval between attempts to preload a new konqy
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// in order not to start many of them at the same time
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void KonqyPreloader::checkAlwaysPreloaded()
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{
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// TODO here should be detection whether the system is too busy,
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// and delaying preloading another konqy in such case
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// but I have no idea how to do it
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updateCount();
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}
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void KonqyPreloader::unloadAllPreloaded()
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{
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while( instances.count() > 0 )
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{
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KonqyData konqy = instances.first();
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instances.pop_front();
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DCOPRef ref( konqy.id, "KonquerorIface" );
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ref.send( "terminatePreloaded" );
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}
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// ignore 'always_have_preloaded' here
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}
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extern "C"
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KDE_EXPORT KDEDModule *create_konqy_preloader( const TQCString& obj )
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{
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return new KonqyPreloader( obj );
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}
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#include "preloader.moc"
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