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# Copyright © 2018 The GNOME Music developers
# GNOME Music 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.
#
# GNOME Music 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 GNOME Music; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# The GNOME Music authors hereby grant permission for non-GPL compatible
# GStreamer plugins to be used and distributed together with GStreamer
# and GNOME Music. This permission is above and beyond the permissions
# granted by the GPL license by which GNOME Music 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.
from gettext import gettext as _
from gi.repository import Gtk, GObject
from gnomemusic.gstplayer import Playback
class InhibitSuspend(GObject.GObject):
"""InhibitSuspend object
Contains the logic to postpone automatic system suspend
until the application has played all the songs in the playlist.
"""
def __init__(self, application):
"""Initialize supend inhibitor
:param Application application: Application object
"""
super().__init__()
self._application = application
self._log = application.props.log
self._player = application.props.player
self._inhibit_cookie = 0
self._player.connect('notify::state', self._on_player_state_changed)
self._settings = application.props.settings
self._should_inhibit = self._settings.get_boolean('inhibit-suspend')
self._settings.connect(
'changed::inhibit-suspend', self._on_inhibit_suspend_changed)
def _inhibit_suspend(self):
if (self._inhibit_cookie == 0
and self._should_inhibit):
active_window = self._application.props.active_window
self._inhibit_cookie = self._application.inhibit(
active_window, Gtk.ApplicationInhibitFlags.SUSPEND,
_("Playing music"))
if self._inhibit_cookie == 0:
self._log.warning("Unable to inhibit automatic system suspend")
def _uninhibit_suspend(self):
if self._inhibit_cookie != 0:
self._application.uninhibit(self._inhibit_cookie)
self._inhibit_cookie = 0
def _on_inhibit_suspend_changed(self, settings, value):
self._should_inhibit = value
self._on_player_state_changed(None, None)
def _on_player_state_changed(self, klass, arguments):
if (self._player.props.state == Playback.PLAYING
or self._player.props.state == Playback.LOADING):
self._inhibit_suspend()
if (self._player.props.state == Playback.PAUSED
or self._player.props.state == Playback.STOPPED):
self._uninhibit_suspend()
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