# Copyright (C) 2010 Adam Olsen
#
# 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, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
#
#
# The developers of the Exaile media player hereby grant permission
# for non-GPL compatible GStreamer and Exaile plugins to be used and
# distributed together with GStreamer and Exaile. This permission is
# above and beyond the permissions granted by the GPL license by which
# Exaile is covered. If you modify this code, you may extend this
# exception to your version of the code, but you are not obligated to
# do so. If you do not wish to do so, delete this exception statement
# from your version.

import gtk
from xl import providers

class Accelerator(object):
    __slots__ = ['name', 'keys', 'callback']
    def __init__(self, keys, callback):
        self.name = keys # only here because providers needs it
        self.keys = keys
        self.callback = callback

class AcceleratorManager(providers.ProviderHandler):
    def __init__(self, providername, accelgroup):
        providers.ProviderHandler.__init__(self, providername)
        self.accelgroup = accelgroup
        for provider in self.get_providers():
            self.on_provider_added(provider)

    def on_provider_added(self, provider):
        key, mod = gtk.accelerator_parse(provider.keys)
        self.accelgroup.connect_group(key, mod, gtk.ACCEL_VISIBLE, provider.callback)

    def on_provider_removed(self, provider):
        key, mod = gtk.accelerator_parse(provider.keys)
        self.accelgroup.disconnect_key(key, mod)

