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127 lines
3.6 KiB
127 lines
3.6 KiB
/*
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* Copyright (C) 2003-2004, Richard J. Moore <rich@kde.org>
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*
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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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*
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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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*
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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 <tqvariant.h>
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#include "global.h"
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#include "jsfactory.h"
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#include "jseventmapper.h"
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#include "jsobjectproxy.h"
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#include "kjsembedpart.h"
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#include "jsbinding.h"
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#include "jsobjecteventproxy.h"
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#ifndef QT_ONLY
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#include "jsobjecteventproxy.moc"
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#endif // QT_ONLY
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namespace KJSEmbed {
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// We'll need to increase this if we need to support any custom events
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static const TQEvent::Type TQEVENT_TYPE_MAX = TQEvent::TabletRelease;
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JSObjectEventProxy::JSObjectEventProxy( JSObjectProxy *parent, const char *name )
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: TQObject( parent->object(), name ? name : "jsobjecteventproxy" ),
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proxy( parent ), eventMask( TQEVENT_TYPE_MAX ), refcount(0)
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{
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eventMask.fill( false );
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}
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JSObjectEventProxy::~JSObjectEventProxy()
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{
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}
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bool JSObjectEventProxy::isFiltered( TQEvent::Type t ) const
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{
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return eventMask.testBit( t );
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}
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void JSObjectEventProxy::addFilter( TQEvent::Type t )
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{
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if ( !refcount )
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proxy->object()->installEventFilter( this );
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if ( !eventMask.testBit(t) ) {
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refcount++;
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eventMask.setBit( t );
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}
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kdDebug(80001) << "JSObjectEventProxy::addFilter done" << endl;
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}
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void JSObjectEventProxy::removeFilter( TQEvent::Type t )
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{
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eventMask.clearBit( t );
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refcount--;
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if ( !refcount ) {
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proxy->object()->removeEventFilter( this );
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deleteLater();
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}
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kdDebug(80001) << "JSObjectEventProxy::removeFilter done" << endl;
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}
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bool JSObjectEventProxy::eventFilter( TQObject * /*watched*/, TQEvent *e )
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{
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if ( isFiltered(e->type()) )
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callHandler( e );
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return false;
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}
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KJS::Value JSObjectEventProxy::callHandler( TQEvent *e )
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{
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// Be careful enabling this as if there are a lot of events then the event loop times
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// out and the app crashes with 'Alarm Clock'.
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// kdDebug(80001) << "JSObjectEventProxy::callHandler() event type " << e->type() << endl;
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KJS::ExecState *exec = proxy->interpreter()->globalExec();
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KJS::Identifier *id = proxy->part()->factory()->eventMapper()->findEventHandler( e->type() );
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KJS::Object jsobj( proxy );
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KJS::Object fun = jsobj.get(exec, *id ).toObject( exec );
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if ( !fun.implementsCall() ) {
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TQString msg = i18n( "Bad event handler: Object %1 Identifier %2 Method %3 Type: %4." )
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.arg(jsobj.className().ascii()).arg(id->ascii()).arg(fun.className().ascii()).arg(e->type());
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return throwError(exec, msg, KJS::TypeError );
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}
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// Process args
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KJS::List args;
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KJS::Object obj = proxy->part()->factory()->createProxy( exec, e, proxy );
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args.append( obj );
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// Call handler
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KJS::Value result = fun.call( exec, jsobj, args );
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if ( exec->hadException() ) {
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kdWarning( 80001 ) << "Exception in event handler '" << id->qstring() << "', "
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<< exec->exception().toString(exec).qstring() << endl;
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exec->clearException();
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}
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return result;
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}
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} // KJSEmbed
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