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