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/*
* Copyright (C) 2003, Richard J. Moore <rich@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 "kjsembed/jsbinding.h"
#include "saxhandler.h"
namespace KJSEmbed {
namespace BuiltIns {
SaxHandler::SaxHandler( KJS::ExecState *execstate )
: QXmlDefaultHandler(), exec(execstate), error( ErrorNone )
{
}
SaxHandler::~SaxHandler()
{
}
void SaxHandler::setHandler( const KJS::Object &handler )
{
jshandler = handler;
}
bool SaxHandler::startDocument()
{
if ( !jshandler.isValid() ) {
error = ErrorNoHandler;
return false;
}
KJS::Identifier funName("startDocument");
if ( !jshandler.hasProperty(exec, funName) )
return QXmlDefaultHandler::startDocument();
KJS::Object fun = jshandler.get(exec, funName).toObject( exec );
if ( !fun.implementsCall() ) {
error = ErrorNotCallable;
return false;
}
KJS::Value ret = fun.call( exec, jshandler, KJS::List() );
return ret.toBoolean( exec );
}
bool SaxHandler::endDocument()
{
if ( !jshandler.isValid() ) {
error = ErrorNoHandler;
return false;
}
KJS::Identifier funName("endDocument");
if ( !jshandler.hasProperty(exec, funName) )
return QXmlDefaultHandler::endDocument();
KJS::Object fun = jshandler.get(exec, funName).toObject( exec );
if ( !fun.implementsCall() ) {
error = ErrorNotCallable;
return false;
}
KJS::Value ret = fun.call( exec, jshandler, KJS::List() );
return ret.toBoolean( exec );
}
bool SaxHandler::startElement( const QString &ns, const QString &ln, const QString &qn,
const QXmlAttributes &attrs )
{
if ( !jshandler.isValid() ) {
error = ErrorNoHandler;
return false;
}
KJS::Identifier funName("startElement");
if ( !jshandler.hasProperty(exec, funName) )
return QXmlDefaultHandler::startElement( ns, ln, qn, attrs );
KJS::Object fun = jshandler.get(exec, funName).toObject( exec );
if ( !fun.implementsCall() ) {
error = ErrorNotCallable;
return false;
}
KJS::List args;
args.append( KJS::String(ns) );
args.append( KJS::String(ln) );
args.append( KJS::String(qn) );
// TODO: XmlAttributes not yet supported
KJS::Value ret = fun.call( exec, jshandler, args );
return ret.toBoolean( exec );
}
bool SaxHandler::endElement( const QString &ns, const QString &ln, const QString &qn )
{
if ( !jshandler.isValid() ) {
error = ErrorNoHandler;
return false;
}
KJS::Identifier funName("endElement");
if ( !jshandler.hasProperty(exec, funName) )
return QXmlDefaultHandler::endElement( ns, ln, qn );
KJS::Object fun = jshandler.get(exec, funName).toObject( exec );
if ( !fun.implementsCall() ) {
error = ErrorNotCallable;
return false;
}
KJS::List args;
args.append( KJS::String(ns) );
args.append( KJS::String(ln) );
args.append( KJS::String(qn) );
KJS::Value ret = fun.call( exec, jshandler, args );
return ret.toBoolean( exec );
}
bool SaxHandler::characters( const QString &chars )
{
if ( !jshandler.isValid() ) {
error = ErrorNoHandler;
return false;
}
KJS::Identifier funName("characters");
if ( !jshandler.hasProperty(exec, funName) )
return QXmlDefaultHandler::characters( chars );
KJS::Object fun = jshandler.get(exec, funName).toObject( exec );
if ( !fun.implementsCall() ) {
error = ErrorNotCallable;
return false;
}
KJS::List args;
args.append( KJS::String(chars) );
KJS::Value ret = fun.call( exec, jshandler, args );
return ret.toBoolean( exec );
}
QString SaxHandler::errorString()
{
switch( error ) {
case ErrorNoHandler:
return QString("No handler specified");
break;
case ErrorNotCallable:
return QString("One of the callbacks of the handler is not callable");
break;
case ErrorNone:
// This only means that no error occured in the JS dispatch, there
// could still have been an error from the parser so we fall
// though to call the baseclass.
break;
default:
break;
}
return QXmlDefaultHandler::errorString();
}
} // namespace KJSEmbed::BuiltIns
} // namespace KJSEmbed
// Local Variables:
// c-basic-offset: 4
// End:
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