Direct connection in QML

[anda_skoa]

More likely having two properties of type QObject* and two properties of type QString.
Once all four properties are set, code is triggered that does
1) lookup of slot and signal through QMetaObject
2) call connect with the two objects and the retrieved signal and slot signatures

Cheers,
_

---

Added after 8 minutes:

Ok, I have to say I don't understand the problem.

I get DirectConnection behavior in a simple test application

#ifndef TIMER_H
#define TIMER_H
 
#include <QObject>
 
#include <QtQuick>
 
class QTimer;
 
class Timer : public QObject
{
    Q_OBJECT
 
public:
    explicit Timer( QObject* parent = 0 );
 
signals:
    void timeout();
 
private:
    QTimer* m_timer;
 
private slots:
    void onInternalTimeout();
};
 
#endif // TIMER_H

#ifndef TIMER_H
#define TIMER_H

#include <QObject>

#include <QtQuick>

class QTimer;

class Timer : public QObject
{
    Q_OBJECT

public:
    explicit Timer( QObject* parent = 0 );

signals:
    void timeout();

private:
    QTimer* m_timer;
    
private slots:
    void onInternalTimeout();
};

#endif // TIMER_H

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#include "timer.h"
 
#include <QDebug>
#include <QTimer>
 
Timer::Timer( QObject* parent )
    : QObject( parent ),
      m_timer( new QTimer( this ) )
{
    m_timer->setInterval( 1000 );
    connect(m_timer, SIGNAL(timeout()), this, SLOT(onInternalTimeout()));
    m_timer->start();
}
 
void Timer::onInternalTimeout()
{
    qDebug() << Q_FUNC_INFO;
    emit timeout();
    qDebug() << "emit timeout() returned";
}

#include "timer.h"

#include <QDebug>
#include <QTimer>

Timer::Timer( QObject* parent )
    : QObject( parent ),
      m_timer( new QTimer( this ) )
{
    m_timer->setInterval( 1000 );
    connect(m_timer, SIGNAL(timeout()), this, SLOT(onInternalTimeout()));
    m_timer->start();
}

void Timer::onInternalTimeout()
{
    qDebug() << Q_FUNC_INFO;
    emit timeout();
    qDebug() << "emit timeout() returned";
}

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import QtQuick 2.0
import CustomComponents 1.0
 
Timer {
    id: timer
    onTimeout: console.log( "onTimeout in QML" )
}

import QtQuick 2.0
import CustomComponents 1.0

Timer {
    id: timer
    onTimeout: console.log( "onTimeout in QML" )
}

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Obviously exporting the Timer class with qmlRegisterType in "CustomComponents" version 1.0

Output is

void Timer::onInternalTimeout() 
onTimeout in QML
emit timeout() returned

void Timer::onInternalTimeout() 
onTimeout in QML
emit timeout() returned

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So emit returns after the "QML slot" has been called. AKA DirectConnection

Cheers,
_