mirror of https://gitlab.com/openlp/openlp.git
64 lines
3.0 KiB
Python
64 lines
3.0 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
##########################################################################
|
|
# OpenLP - Open Source Lyrics Projection #
|
|
# ---------------------------------------------------------------------- #
|
|
# Copyright (c) 2008-2022 OpenLP Developers #
|
|
# ---------------------------------------------------------------------- #
|
|
# 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 3 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, see <https://www.gnu.org/licenses/>. #
|
|
##########################################################################
|
|
from openlp.core.common.mixins import RegistryProperties
|
|
|
|
|
|
class WebSocketPoller(RegistryProperties):
|
|
"""
|
|
Accessed by web sockets to get status type information from the application
|
|
"""
|
|
def __init__(self):
|
|
"""
|
|
Constructor for the web sockets poll builder class.
|
|
"""
|
|
super(WebSocketPoller, self).__init__()
|
|
self._previous = {}
|
|
|
|
def get_state(self):
|
|
return {'results': {
|
|
'counter': self.live_controller.slide_count if self.live_controller.slide_count else 0,
|
|
'service': self.service_manager.service_id,
|
|
'slide': self.live_controller.selected_row or 0,
|
|
'item': self.live_controller.service_item.unique_identifier if self.live_controller.service_item else '',
|
|
'twelve': self.settings.value('api/twelve hour'),
|
|
'blank': self.live_controller.blank_screen.isChecked(),
|
|
'theme': self.live_controller.theme_screen.isChecked(),
|
|
'display': self.live_controller.desktop_screen.isChecked(),
|
|
'version': 3,
|
|
'isSecure': self.settings.value('api/authentication enabled'),
|
|
'chordNotation': self.settings.value('songs/chord notation')
|
|
}}
|
|
|
|
def get_state_if_changed(self):
|
|
"""
|
|
Poll OpenLP to determine current state if it has changed.
|
|
|
|
This must only be used by web sockets or else we could miss a state change.
|
|
|
|
:return: The current application state or None if unchanged since last call
|
|
"""
|
|
current = self.get_state()
|
|
if self._previous != current:
|
|
self._previous = current
|
|
return current
|
|
else:
|
|
return None
|