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First step of effect dependencies handling - when an effect is loaded, load it's dependancies also.

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svn path=/trunk/KDE/kdebase/workspace/; revision=690660
This commit is contained in:
Rivo Laks 2007-07-21 18:30:06 +00:00
parent 54fb7834a7
commit 4f093c4721
1 changed files with 28 additions and 4 deletions
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32
effects.cpp
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@ -59,6 +59,8 @@ void EffectsHandlerImpl::reconfigure()
KConfigGroup conf(_config, "Plugins");
KService::List offers = KServiceTypeTrader::self()->query("KWin/Effect");
QStringList effectsToBeLoaded;
// First unload necessary effects
foreach( KService::Ptr service, offers )
{
KPluginInfo plugininfo( service );
@ -66,10 +68,18 @@ void EffectsHandlerImpl::reconfigure()
bool isloaded = isEffectLoaded( plugininfo.pluginName() );
bool shouldbeloaded = plugininfo.isPluginEnabled();
if( shouldbeloaded && !isloaded)
loadEffect( plugininfo.pluginName() );
else if( !shouldbeloaded && isloaded )
if( !shouldbeloaded && isloaded )
unloadEffect( plugininfo.pluginName() );
if( shouldbeloaded )
effectsToBeLoaded.append( plugininfo.pluginName() );
}
// Then load those that should be loaded
foreach( QString effectName, effectsToBeLoaded )
{
if( !isEffectLoaded( effectName ))
{
loadEffect( effectName );
}
}
}
@ -645,7 +655,7 @@ bool EffectsHandlerImpl::loadEffect( const QString& name )
kError( 1212 ) << k_funcinfo << "Couldn't find effect " << name << endl;
return false;
}
KSharedPtr<KService> service = offers.first();
KService::Ptr service = offers.first();
KLibrary* library = findEffectLibrary( service.data() );
if( !library )
@ -677,6 +687,20 @@ bool EffectsHandlerImpl::loadEffect( const QString& name )
typedef Effect* (*t_createfunc)();
t_createfunc create = reinterpret_cast<t_createfunc>(create_func);
// Make sure all depenedencies have been loaded
// TODO: detect circular deps
KPluginInfo plugininfo( service );
QStringList dependencies = plugininfo.dependencies();
foreach( QString depName, dependencies )
{
if( !loadEffect(depName))
{
kError() << "EffectsHandler::loadEffect : Couldn't load dependencies for effect " << name << endl;
library->unload();
return false;
}
}
Effect* e = create();
effect_order.insert( service->property( "X-Ordering" ).toInt(), EffectPair( name, e ));