khtml_factory.cpp
/* This file is part of the KDE project
*
* Copyright (C) 2000 Simon Hausmann <hausmann@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 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 "khtml_factory.h"
#include "khtml_part.h"
#include "khtml_settings.h"
#include "css/cssstyleselector.h"
#include "html/html_imageimpl.h"
#include "rendering/render_style.h"
#include "rendering/break_lines.h"
#include "misc/loader.h"
#include "misc/arena.h"
#include <kinstance.h>
#include <kaboutdata.h>
#include <klocale.h>
#include <assert.h>
#include <kdebug.h>
template class QPtrList<KHTMLPart>;
extern "C" KDE_EXPORT void *init_libkhtml()
{
// We can't use a plain self() here, because that would
// return the global factory, which might already exist
// at the time init_libkhtml is called! As soon as someone
// does new KHTMLPart() in his application and loads up
// an html document into that part which either embeds
// embeds another KHTMLPart instance via <object> or
// as html frame, then we cannot return self(), as
// what we return here is what the KLibLoader deletes
// in the end, and we don't want the libloader to
// delete our global instance. Anyway, the new
// KHTMLFactory we create here is very cheap :)
// (Simon)
return new KHTMLFactory( true );
}
KHTMLFactory *KHTMLFactory::s_self = 0;
unsigned long int KHTMLFactory::s_refcnt = 0;
KInstance *KHTMLFactory::s_instance = 0;
KAboutData *KHTMLFactory::s_about = 0;
KHTMLSettings *KHTMLFactory::s_settings = 0;
QPtrList<KHTMLPart> *KHTMLFactory::s_parts = 0;
QString *KHTMLSettings::avFamilies = 0;
KHTMLFactory::KHTMLFactory( bool clone )
{
if ( clone )
ref();
}
KHTMLFactory::~KHTMLFactory()
{
if ( s_self == this )
{
assert( !s_refcnt );
delete s_instance;
delete s_about;
delete s_settings;
delete KHTMLSettings::avFamilies;
if ( s_parts )
{
assert( s_parts->isEmpty() );
delete s_parts;
}
s_instance = 0;
s_about = 0;
s_settings = 0;
s_parts = 0;
KHTMLSettings::avFamilies = 0;
// clean up static data
khtml::CSSStyleSelector::clear();
khtml::RenderStyle::cleanup();
khtml::Cache::clear();
khtml::cleanup_thaibreaks();
khtml::ArenaFinish();
}
else
deref();
}
KParts::Part *KHTMLFactory::createPartObject( QWidget *parentWidget, const char *widgetName, QObject *parent, const char *name, const char *className, const QStringList & )
{
KHTMLPart::GUIProfile prof = KHTMLPart::DefaultGUI;
if ( strcmp( className, "Browser/View" ) == 0 )
prof = KHTMLPart::BrowserViewGUI;
return new KHTMLPart( parentWidget, widgetName, parent, name, prof );
}
void KHTMLFactory::ref()
{
if ( !s_refcnt && !s_self )
{
// we can't use a staticdeleter here, because that would mean
// that the factory gets deleted from within a qPostRoutine, called
// from the QApplication destructor. That however is too late, because
// we want to destruct a KInstance object, which involves destructing
// a KConfig object, which might call KGlobal::dirs() (in sync()) which
// probably is not going to work ;-)
// well, perhaps I'm wrong here, but as I'm unsure I try to stay on the
// safe side ;-) -> let's use a simple reference counting scheme
// (Simon)
s_self = new KHTMLFactory;
khtml::Cache::init();
}
s_refcnt++;
}
void KHTMLFactory::deref()
{
if ( !--s_refcnt && s_self )
{
delete s_self;
s_self = 0;
}
}
void KHTMLFactory::registerPart( KHTMLPart *part )
{
if ( !s_parts )
s_parts = new QPtrList<KHTMLPart>;
if ( !s_parts->containsRef( part ) )
{
s_parts->append( part );
ref();
}
}
void KHTMLFactory::deregisterPart( KHTMLPart *part )
{
assert( s_parts );
if ( s_parts->removeRef( part ) )
{
if ( s_parts->isEmpty() )
{
delete s_parts;
s_parts = 0;
}
deref();
}
}
KInstance *KHTMLFactory::instance()
{
assert( s_self );
if ( !s_instance )
{
s_about = new KAboutData( "khtml", I18N_NOOP( "KHTML" ), "4.0",
I18N_NOOP( "Embeddable HTML component" ),
KAboutData::License_LGPL );
s_about->addAuthor( "Lars Knoll", 0, "knoll@kde.org" );
s_about->addAuthor( "Antti Koivisto", 0, "koivisto@kde.org" );
s_about->addAuthor( "Waldo Bastian", 0, "bastian@kde.org" );
s_about->addAuthor( "Dirk Mueller", 0, "mueller@kde.org" );
s_about->addAuthor( "Peter Kelly", 0, "pmk@kde.org" );
s_about->addAuthor( "Torben Weis", 0, "weis@kde.org" );
s_about->addAuthor( "Martin Jones", 0, "mjones@kde.org" );
s_about->addAuthor( "Simon Hausmann", 0, "hausmann@kde.org" );
s_about->addAuthor( "Tobias Anton", 0, "anton@stud.fbi.fh-darmstadt.de" );
s_instance = new KInstance( s_about );
}
return s_instance;
}
KHTMLSettings *KHTMLFactory::defaultHTMLSettings()
{
assert( s_self );
if ( !s_settings )
s_settings = new KHTMLSettings();
return s_settings;
}
using namespace KParts;
#include "khtml_factory.moc"
KHTMLSettings
Settings for the HTML view.
Definition: khtml_settings.h:38
KHTMLPart
This class is khtml's main class.
Definition: khtml_part.h:184
KParts::Part
klocale.h
I18N_NOOP
#define I18N_NOOP(x)
KInstance
KAboutData

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