Example
Signals can have a default handler. All you need to do is to give it a body when you declare it.
public class Emitter : Object {
public signal void my_signal () {
print ("Hello from the default handler!\n");
}
}
This handler will always be called after the connected ones. But you can use connect_after instead of connect if you want to add an handler after the default one.
var emitter = new Emitter ();
emitter.my_signal.connect_after (() => {
print ("After the default handler!\n");
});
emitter.my_signal ();
