void QSCompletionObject::resolve()
{
if ( type == TQSObject ) {
QuickInterpreter *ip = QuickInterpreter::fromEnv( qsobj.env() );
if( qsobj.isA( ip->wrapperClass() ) ) {
type = TQObject;
qobj = *ip->wrapperClass()->objectVector( &qsobj );
}
}
}
/*!
Adds the Qt Script function \a qtscriptFunction (fully qualified)
as a transient signal handler for the C++ signal \a signal of the
object \a sender.
Example:
\code
interpreter->addTransientSignalHandler( myButton, SIGNAL( clicked() ), "classA.obj.calculate" );
\endcode
\sa removeTransientSignalHandler()
*/
void QSInterpreter::addTransientSignalHandler(QObject *sender,
const char *signal,
const char *qtscriptFunction)
{
QuickInterpreter *ip = interpreter();
QString func = QString::fromLatin1(qtscriptFunction);
func.left(func.find('('));
QSObject senderObj = ip->wrap(sender);
QSObject obj = ip->object(func);
if (!obj.isFunction()) {
qDebug("QSInterpreter::addTransientSignalHandler(): '%s' not a function",
qtscriptFunction);
return;
}
QSObject base = QSFuncRefClass::refBase(obj);
QSMember member = QSFuncRefClass::refMember(obj);
QSWrapperShared *sh = ip->wrapperClass()->shared(&senderObj);
if (!sh->setEventHandler(ip, QString::fromLatin1(signal + 1), 0, member.name(), base)) {
#if defined( QT_CHECK_STATE )
qWarning("QSInterpreter::addTransientSignalHandler(), "
"failed to add signal handler: '%s' to '%s'", signal + 1, qtscriptFunction);
#endif
}
}
static QSObject qsa_connect(QSEnv *env)
{
const QSList *args = env->arguments();
QuickInterpreter *ip = QuickInterpreter::fromEnv(env);
QObject *sender = 0;
QByteArray signal;
if (args->size() >= 2) {
QSObject qsSender = args->at(0);
sender = qsSender.isA(ip->wrapperClass()) ? QSWrapperClass::object(&qsSender) : 0;
if (!sender)
return env->throwError("connection failed, sender is not of type QObject");
QString signal_string = "2" + args->at(1).toString();
signal = QMetaObject::normalizedSignature(signal_string.toLatin1());
}
bool ok = false;
if (args->size() == 3) {
// C++ -> Script connection
QSObject function_ref = args->at(2);
// resolve function as a name
if (!function_ref.isFunction())
function_ref = env->resolveValue(args->at(2).toString());
if (!function_ref.isValid())
return env->throwError("connection failed, argument 3 is not a function");
ok = ip->addConnection(sender, signal, function_ref);
if (!ok) {
const QMetaObject *meta_object = sender->metaObject();
if (meta_object->indexOfSignal(signal) < 0) {
return env->throwError(QString("connection failed, no such signal %1::%2")
.arg(meta_object->className())
.arg(signal.constData() + 1));
}
}
} else if (args->size() == 4) {
// C++ -> C++ connection
QSObject qsReceiver = args->at(2);
QObject *receiver = qsReceiver.isA(ip->wrapperClass())
? QSWrapperClass::object(&qsReceiver)
: 0;
if (!receiver)
return env->throwError("connection failed, reciver is not of type QObject");
QString slot_string = "1" + args->at(3).toString();
QByteArray slot = QMetaObject::normalizedSignature(slot_string.toLatin1());
ok = QObject::connect(sender, signal, receiver, slot);
if (!ok) {
if (!QMetaObject::checkConnectArgs(signal, slot))
return env->throwError("connection failed, parameters does not match");
else
return env->throwError("connection failed, unknown error");
}
} else {
return env->throwError("connection failed, expected 3 or 4 arguments");
}
if (!ok)
return env->throwError("connection failed");
return env->createBoolean(true);
}
static QSObject qsConnectCommon( QSEnv *env,
QSObject &arg0,
QSObject &arg2,
QSWrapperShared *&sendObj,
QSWrapperShared *&recObj,
const QPtrVector<QObject> *&sendIfaces,
const QPtrVector<QObject> *&recIfaces,
QString &sig,
QString &sl,
int &signal_index,
QObject *&sender,
const QString &func )
{
const QSList &args = *env->arguments();
QuickInterpreter *ip = QuickInterpreter::fromEnv( env );
const QString overloads =
QString::fromLatin1( "Following overloads are possible:\n"
"%1( sender : QObject, signal : String, receiver : QObject, slot : String )\n"
"%2( sender : QObject, signal : String, function : DeclaredFunction )" ).
arg( func ).arg( func );
if ( args.size() < 3 || args.size() > 4 ) {
QString msg = QString::fromLatin1("No matching overload found. ") + overloads;
return env->throwError( SyntaxError, msg );
}
QSWrapperClass *wClass = ip->wrapperClass();
if ( !args[0].isA( wClass ) ) {
QString msg = QString::fromLatin1("No matching overload found. 'sender' must be of type QObject but is of type ") +
args[0].typeName() + QString::fromLatin1("\n") + overloads;
return env->throwError( TypeError, msg );
}
if ( args.size() == 3 && !args[2].isFunction() ) {
QString msg = QString::fromLatin1("No matching overloads found. Third argument in this overload "
"must be of type function but is of type ") + args[2].typeName() + QString::fromLatin1("\n") + overloads;
return env->throwError( TypeError, msg );
}
arg0 = args[0];
arg2 = args[2];
sendObj = wClass->shared( &arg0 );
recObj = arg2.isA( wClass ) ? wClass->shared( &arg2 ) : 0;
sendIfaces = sendObj->interfaceObjects();
recIfaces = recObj ? recObj->interfaceObjects() : 0;
// signal and slot in string representation
sig = args[1].toString();
sl = ( args.size()>3 ? args[3] : env->createUndefined() ).toString();
// find sender and signal
sender = 0;
signal_index = -1;
const char *sigName = sig.ascii();
int i;
for ( i = (int)sendIfaces->count()-1; i >= 0; --i ) {
sender = sendIfaces->at( i );
signal_index = sender->metaObject()->findSignal( sigName, TRUE );
if ( signal_index > 0 )
break;
}
if ( signal_index == -1 ) {
// didn't find the signal- this signature might be in Qt
// Script syntax, so lets's try to find out if we can connect
QString sn = sig;
QString arg = sig.mid( sig.find( '(' ) + 1 );
arg = arg.left( arg.findRev( ')' ) );
QStringList args = QStringList::split( ',', arg );
sn = sig.left( sig.find( '(' ) );
for ( i = (int)sendIfaces->count()-1; i >= 0; --i ) {
sender = sendIfaces->at( i );
for ( int j = 0; j < (int)sender->metaObject()->numSignals( TRUE ); ++j ) {
const QMetaData *md = sender->metaObject()->signal( j, TRUE );
QString mdn = QString::fromLatin1(md->name);
mdn = mdn.left( mdn.find( '(' ) );
if ( mdn != sn )
continue;
const QUMethod *method = md->method;
bool ok = method->count == (int)args.count();
for ( int k = 0; k < method->count; ++k ) {
QUParameter p = method->parameters[k];
QString s = *args.at( k );
int sep;
if ( ( sep = s.find( ':' ) ) != -1 )
s = s.mid( sep + 1 );
s = s.simplifyWhiteSpace();
if ( s == QString::fromLatin1(p.type->desc())
|| s == QString::fromLatin1((const char*)p.typeExtra))
continue;
if ( s == QString::fromLatin1("Number") &&
( qstrcmp( p.type->desc(), "int" ) == 0 ||
qstrcmp( p.type->desc(), "long" ) == 0 ||
qstrcmp( p.type->desc(), "double" ) == 0 ||
qstrcmp( p.type->desc(), "float" ) == 0 ||
qstrcmp( p.type->desc(), "short" ) == 0 ||
qstrcmp( p.type->desc(), "uint" ) == 0 ||
qstrcmp( p.type->desc(), "ushort" ) == 0 ||
qstrcmp( p.type->desc(), "ulong" ) == 0 ||
qstrcmp( p.type->desc(), "unsigned int" ) == 0 ||
qstrcmp( p.type->desc(), "unsigned short" ) == 0 ||
qstrcmp( p.type->desc(), "unsigned long" ) == 0 ) )
continue;
s.prepend( QString::fromLatin1("Q") );
if (s == QString::fromLatin1(p.type->desc())
|| s == QString::fromLatin1((const char*)p.typeExtra))
continue;
ok = FALSE;
break;
}
if ( !ok )
continue;
signal_index = j;
sig = sender->metaObject()->signal( j, TRUE )->name;
break;
}
if ( signal_index != -1 )
break;
}
}
return QSObject();
}