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-rw-r--r--kdemm/factory.cpp296
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diff --git a/kdemm/factory.cpp b/kdemm/factory.cpp
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--- a/kdemm/factory.cpp
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-/* This file is part of the KDE project
- Copyright (C) 2004 Matthias Kretz <kretz@kde.org>
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License version 2 as published by the Free Software Foundation.
-
- 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 "factory.h"
-#include "backend.h"
-#include "player.h"
-#include "videoplayer.h"
-#include "channel.h"
-
-#include <ktrader.h>
-#include <kservice.h>
-#include <klibloader.h>
-#include <kmessagebox.h>
-#include <tqfile.h>
-#include <klocale.h>
-#include <kmimetype.h>
-#include <kdebug.h>
-
-namespace KDE
-{
-namespace Multimedia
-{
-class Factory::Private
-{
- public:
- Private()
- : backend( 0 )
- {
- createBackend();
- }
-
- void createBackend()
- {
- KTrader::OfferList offers = KTrader::self()->query( "KDEMultimediaBackend", "Type == 'Service'" );
- KTrader::OfferListIterator it = offers.begin();
- KTrader::OfferListIterator end = offers.end();
- TQStringList errormsg;
- for( ; it != end; ++it )
- {
- KService::Ptr ptr = *it;
- KLibFactory * factory = KLibLoader::self()->factory( TQFile::encodeName( ptr->library() ) );
- if( factory )
- {
- backend = ( Backend* )factory->create( 0, "Multimedia Backend", "KDE::Multimedia::Backend" );
- if( 0 == backend )
- {
- TQString e = i18n( "create method returned 0" );
- errormsg.append( e );
- kdDebug( 600 ) << "Error getting backend from factory for " <<
- ptr->name() << ":\n" << e << endl;
- }
- else
- {
- service = ptr;
- kdDebug( 600 ) << "using backend: " << ptr->name() << endl;
- break;
- }
- }
- else
- {
- TQString e = KLibLoader::self()->lastErrorMessage();
- errormsg.append( e );
- kdDebug( 600 ) << "Error getting factory for " << ptr->name() <<
- ":\n" << e << endl;
- }
- }
-#if 0
- if( 0 == backend )
- {
- if( offers.size() == 0 )
- KMessageBox::error( 0, i18n( "Unable to find a Multimedia Backend" ) );
- else
- {
- TQString details = "<qt><table>";
- TQStringList::Iterator eit = errormsg.begin();
- TQStringList::Iterator eend = errormsg.end();
- KTrader::OfferListIterator oit = offers.begin();
- KTrader::OfferListIterator oend = offers.end();
- for( ; eit != eend || oit != oend; ++eit, ++oit )
- details += TQString( "<tr><td><b>%1</b></td><td>%2</td></tr>" )
- .arg( ( *oit )->name() ).arg( *eit );
- details += "</table></qt>";
-
- KMessageBox::detailedError( 0,
- i18n( "Unable to use any of the available Multimedia Backends" ), details );
- }
- }
-#endif
- }
-
- Backend * backend;
- KService::Ptr service;
-
- TQValueList<void*> objects;
-};
-
-Factory * Factory::m_self = 0;
-
-Factory * Factory::self()
-{
- if( ! m_self )
- m_self = new Factory();
- return m_self;
-}
-
-Factory::Factory()
- : DCOPObject( "KDEMMFactory" )
- , d( new Private )
-{
- connectDCOPSignal( 0, 0, "kdemmBackendChanged()", "kdemmBackendChanged()", false);
-}
-
-Factory::~Factory()
-{
- delete d;
-}
-
-void Factory::kdemmBackendChanged()
-{
- if( d->backend )
- {
- // wouw, if we want to switch on the fly we have to exchange the
- // (Video)Player and Channel classes without the API user noticing. That
- // would mean to implement a kind of smartwrapper:
- // Player: Interface that accesses Player_skel which is abstract and is
- // implemented by the Backend. The API user would only get access to the
- // Player class and if you want to switch the backend you can delete the
- // Player_skel object and put another implementation in its place.
- //
- // Now we tell the kdemm using app to help us. With the first signal we
- // tell 'em to delete all the (Video)Players and Channels and with the
- // second to recreate them all again.
- emit deleteYourObjects();
- if( d->objects.size() > 0 )
- {
- kdWarning( 600 ) << "we were asked to change the backend but the application did\n"
- "not free all references to objects created by the factory. Therefor we can not\n"
- "change the backend without crashing. Now we have to wait for a restart to make\n"
- "backendswitching possible." << endl;
- // in case there were objects deleted give 'em a chance to recreate
- // them now
- emit recreateObjects();
- return;
- }
- delete d->backend;
- d->backend = 0;
- }
- d->createBackend();
- emit recreateObjects();
-}
-
-void Factory::objectDestroyed( TQObject * obj )
-{
- kdDebug( 600 ) << k_funcinfo << obj << endl;
- void * p = ( void* )obj;
- d->objects.remove( p );
-}
-
-Player * Factory::createPlayer()
-{
- if( d->backend )
- {
- Player * p = d->backend->createPlayer();
- connect( p, TQT_SIGNAL( destroyed( TQObject* ) ), TQT_SLOT( objectDestroyed( TQObject* ) ) );
- d->objects.append( p );
- return p;
- }
- else
- return 0;
-}
-
-VideoPlayer * Factory::createVideoPlayer()
-{
- if( d->backend )
- {
- VideoPlayer * vp = d->backend->createVideoPlayer();
- connect( vp, TQT_SIGNAL( destroyed( TQObject* ) ), TQT_SLOT( objectDestroyed( TQObject* ) ) );
- d->objects.append( vp );
- return vp;
- }
- else
- return 0;
-}
-
-bool Factory::playSoundEvent(const KURL & url)
-{
- if( d->backend )
- return d->backend->playSoundEvent(url);
- else
- return false;
-}
-
-Channel * Factory::createChannel( const TQString & title, const TQString & channeltype,
- Channel::Direction direction )
-{
- if( d->backend )
- {
- Channel * c = d->backend->createChannel( title, channeltype, direction );
- connect( c, TQT_SIGNAL( destroyed( TQObject* ) ), TQT_SLOT( objectDestroyed( TQObject* ) ) );
- d->objects.append( c );
- return c;
- }
- else
- return 0;
-}
-
-TQStringList Factory::availableChannels( Channel::Direction direction ) const
-{
- if( d->backend )
- return d->backend->availableChannels( direction );
- else
- return TQStringList();
-}
-
-TQStringList Factory::playableMimeTypes() const
-{
- if( d->backend )
- return d->backend->playableMimeTypes();
- else
- return TQStringList();
-}
-
-bool Factory::isMimeTypePlayable( const TQString & type ) const
-{
- if( d->backend )
- {
- KMimeType::Ptr mimetype = KMimeType::mimeType( type );
- TQStringList mimetypes = playableMimeTypes();
- for( TQStringList::ConstIterator i=mimetypes.begin(); i!=mimetypes.end(); i++ )
- if( mimetype->is( *i ) )
- return true;
- }
- return false;
-}
-
-TQString Factory::backendName() const
-{
- if( d->service )
- return d->service->name();
- else
- return TQString::null;
-}
-
-TQString Factory::backendComment() const
-{
- if( d->service )
- return d->service->comment();
- else
- return TQString::null;
-}
-
-TQString Factory::backendVersion() const
-{
- if( d->service )
- return d->service->property( "X-KDE-MMBackendInfo-Version" ).toString();
- else
- return TQString::null;
-}
-
-TQString Factory::backendIcon() const
-{
- if( d->service )
- return d->service->icon();
- else
- return TQString::null;
-}
-
-TQString Factory::backendWebsite() const
-{
- if( d->service )
- return d->service->property( "X-KDE-MMBackendInfo-Website" ).toString();
- else
- return TQString::null;
-}
-
-}} //namespaces
-
-#include "factory.moc"
-
-// vim: sw=4 ts=4 noet
generated by cgit v1.2.1 (git 2.18.0) at 2024-07-17 12:06:26 +0000