/*!
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
}
}
QSObject QuickInterpreter::wrap( QObject *o )
{
if( !o ) {
QSList list;
return env()->nullClass()->construct( list );
}
#if defined (QT_THREAD_SUPPORT) && QT_VERSION >= 0x030300
if (qt_get_application_thread_id() != QThread::currentThread()
&& o->inherits("QWidget")) {
qWarning("QuickInterpreter::wrap(), GUI object (%s [%s]) cannot be used in non GUI thread",
o->name(), o->className());
return QSObject();
}
#endif
QSUserData *udata = (QSUserData*) o->userData( userDataId() );
// set user data in QObject if it's not there, yet
if( !udata ) {
udata = new QSUserData( 0 );
o->setUserData( userDataId(), udata );
}
QSWrapperShared *shared = udata->data();
const QSWrapperClass *cl;
if ( shared ) {
// wrapper is already there, reuse it
cl = shared->wrapperClass();
} else {
// create & remember wrapper
cl = new QSWrapperClass( wrapperClass() );
shared = cl->createShared( o );
shared->setObjectType( QSWrapperShared::GlobalObject );
env()->registerShared( shared );
wrapperShared->append( shared );
}
shared->setUserData( udata );
udata->setData( shared );
shared->ref(); // additional ref by either QObject or QSObject
QSObject obj( cl );
obj.setVal( shared ); // no ownership needs to be transferred anymore
return obj;
}
QSObject QuickInterpreter::wrap(QObject *o)
{
if(!o) {
QSList list;
return env()->nullClass()->construct(list);
}
if (qsa_is_non_gui_thread() && o->isWidgetType()) {
qWarning("QuickInterpreter::wrap(), GUI object (%s [%s]) cannot be used in non GUI thread",
o->objectName().toLatin1().constData(), o->metaObject()->className());
return QSObject();
}
QSUserData *udata = (QSUserData*) o->userData(userDataId());
// set user data in QObject if it's not there, yet
if(!udata) {
udata = new QSUserData(0);
o->setUserData(userDataId(), udata);
}
QSWrapperShared *shared = udata->data();
const QSWrapperClass *cl;
if (shared) {
// wrapper is already there, reuse it
cl = shared->wrapperClass();
} else {
// create & remember wrapper
cl = new QSWrapperClass(wrapperClass());
shared = cl->createShared(o);
shared->setObjectType(QSWrapperShared::GlobalObject);
env()->registerShared(shared);
wrapperShared->append(shared);
}
shared->setUserData(udata);
udata->setData(shared);
shared->ref(); // additional ref by either QObject or QSObject
QSObject obj(cl);
obj.setVal(shared); // no ownership needs to be transferred anymore
return obj;
}
