c.set_current_name(re.sub(r"\.(m3u|pls|xspf|jspf|asx|json|smil|wpl)$", ext.strip("*"), fn))
        
    
    
    
    # pass updates from another thread, ensures that it is called just once
    @staticmethod
    def do(lambda_func):
        gobject.idle_add(lambda: lambda_func() and False)
    def do(callback, *args, **kwargs):
        gobject.idle_add(lambda: callback(*args, **kwargs) and False)


    # adds background color to widget,
    # eventually wraps it into a gtk.Window, if it needs a container
    @staticmethod
    def bg(w, color="", where=["bg"]):
        """ this method should be called after widget creation, and before .add()ing it to container """