Function glib::source::idle_source_new

pub fn idle_source_new<'a, N: Into<Option<&'a str>>, F>(
    name: N, 
    priority: Priority, 
    func: F
) -> Source where
    F: FnMut() -> Continue + Send + 'static, 

Adds a closure to be called by the main loop the return Source is attached to when it's idle.

func will be called repeatedly until it returns Continue(false).