import sys
import zavai
import gtk

class Menu(gtk.VBox, zavai.Resource):
    def __init__(self, registry, name, *args, **kw):
        super(Menu, self).__init__()
        self.vbox = self

        print >>sys.stderr, "PARENT?", name
        parent = None
        pos = name.rfind(".")
        if pos != -1:
            parent = name[:pos]
            print >>sys.stderr, "PARENT IS", parent
            if parent == "menu":
                parent = None
                print >>sys.stderr, "PARENT MAIN?"

        if parent is not None:
            print >>sys.stderr, "MAKE PARENT"
            self.vbox = gtk.VBox()
            self.pack_start(self.vbox)
            self.pack_start(registry.menu_link(parent, "Back"), True, True)

    def add_child(self, widget):
        self.vbox.pack_start(widget, True, True)

class MenuLink(gtk.Button, zavai.Resource):
    def __init__(self, registry, targetName, label):
        super(MenuLink, self).__init__(label)
        self.target = "menu." + targetName
        self.registry = registry
        self.connect("clicked", self.on_click)

    def on_click(self, *args):
        self.registry.resource("app").show_widget(self.target)