# app - zavai main window
#
# Copyright (C) 2009  Enrico Zini <enrico@enricozini.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

import sys
from gettext import gettext as _
import gtk, gobject
import zavai

class Zavai(gtk.Window, zavai.Resource):
    def __init__(self, registry, name):
        super(Zavai, self).__init__()
        self.registry = registry
        self.current = None
        self.activate_resource("menu.main")

    def activate_resource(self, name):
        widget = self.registry.resource(name)
        if widget is None:
            widget = self.registry.resource("menu.main")
        if isinstance(widget, gtk.Action):
            widget.activate()
        else:
            self.show_widget(name, widget)

    def show_widget(self, name, widget):
        # Remove the current widget.
        # If it is an Applet, stop it
        if self.current is not None:
            cur = self.registry.resource(self.current)
            if isinstance(cur, zavai.Applet):
                cur.stop()
            self.remove(self.get_child())
            self.current = None

        # Add the new widget. If it is an applet, start it
        self.add(widget)
        self.current = name
        if isinstance(widget, zavai.Applet):
            widget.start()
        widget.show_all()

    def run(self):
        self.fullscreen()
        self.show_all()
        gtk.main()

class Applet(gtk.VBox):
    label = gobject.property(type=str)

    def __init__(self, registry, name, label = None):
        super(Applet, self).__init__()
        self.zavai_registry = registry
        self.zavai_name = name
        if label is None:
            self.props.label = zavai.default_label(name)
        else:
            self.props.label = label
        self.back_link = zavai.LinkButton(registry, zavai.get_parent(name), _("Back"))
        self.pack_end(self.back_link, False, False)

    def add(self, widget):
        self.pack_start(widget, True, True)

    def shutdown(self):
        self.stop()

    def start(self, *args):
        pass

    def stop(self, *args):
        pass