// Problem: Tester is not receiving signals from Emitter
// To solve the problem that no signals are received there are two solutions
// 1. Do not inherit from GLib.Object for class tester
// 2. Move content of construtor MyClass() directly into main


using Gtk;

public class Emitter : GLib.Object {
    public signal void MySignal();

    public Emitter() {
        GLib.Timeout.add(4000, () => {
            warning("EMITTING TEST");
            MySignal();
            return true;
        });
    }
}

//public class Tester { // Receive of signal works
public class Tester : GLib.Object { // Receive of signal does not work!
    public void test(Emitter e) {
        e.MySignal.connect(() => {
            warning("TESTER GOT SIGNAL");
        });
    }
}

public class MyClass : GLib.Object {
    public MyClass() {

        //If this code is inserted directly into main()
        //the signals are working as expected, too.
        var e = new Emitter();
        var t = new Tester();
        t.test(e);

        var window = new Window ();
        window.title = "Testprog";
        window.destroy.connect (Gtk.main_quit);
        window.show_all ();

    }
}

public int main(string[] args) {

    Gtk.init (ref args);

    var c = new MyClass();

    Gtk.main ();
    return 0;

}