OpenSlides/openslides/projector/signals.py

182 lines
5.5 KiB
Python
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
openslides.projector.signals
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signals for the projector app.
:copyright: 20112013 by OpenSlides team, see AUTHORS.
:license: GNU GPL, see LICENSE for more details.
"""
from time import time
from django.contrib.staticfiles.templatetags.staticfiles import static
from django.core.context_processors import csrf
from django.dispatch import receiver, Signal
from django.template.loader import render_to_string
from openslides.config.api import config, ConfigPage, ConfigVariable
from openslides.config.signals import config_signal
from .projector import Overlay
projector_overlays = Signal(providing_args=['request'])
@receiver(config_signal, dispatch_uid='setup_projector_config_variables')
def config_variables(sender, **kwargs):
"""
Projector config variables for OpenSlides. They are not shown on a
config page.
"""
# The active slide. The config-value is a dictonary with at least the entry
# 'callback'.
projector = ConfigVariable(
name='projector_active_slide',
default_value={'callback': None})
projector_message = ConfigVariable(
name='projector_message',
default_value='')
countdown_time = ConfigVariable(
name='countdown_time',
default_value=60)
countdown_start_stamp = ConfigVariable(
name='countdown_start_stamp',
default_value=0)
countdown_pause_stamp = ConfigVariable(
name='countdown_pause_stamp',
default_value=0)
countdown_state = ConfigVariable(
name='countdown_state',
default_value='inactive')
projector_scale = ConfigVariable(
name='projector_scale',
default_value=0)
projector_scroll = ConfigVariable(
name='projector_scroll',
default_value=0)
projector_js_cache = ConfigVariable(
name='projector_js_cache',
default_value={})
projector_active_overlays = ConfigVariable(
name='projector_active_overlays',
default_value=[])
projector_pdf_fullscreen = ConfigVariable(
name='pdf_fullscreen',
default_value=False)
return ConfigPage(
title='No title here', url='bar', required_permission=None, variables=(
projector, projector_message,
countdown_time, countdown_start_stamp, countdown_pause_stamp,
countdown_state, projector_scale, projector_scroll,
projector_active_overlays, projector_js_cache,
projector_pdf_fullscreen))
@receiver(projector_overlays, dispatch_uid="projector_countdown")
def countdown(sender, **kwargs):
"""
Receiver for the countdown.
"""
name = 'projector_countdown'
request = kwargs.get('request', None)
def get_widget_html():
"""
Returns the the html-code to show in the overly-widget.
"""
context = {
'countdown_time': config['countdown_time'],
'countdown_state': config['countdown_state']}
context.update(csrf(request))
return render_to_string('projector/overlay_countdown_widget.html',
context)
def get_projector_js():
"""
Returns JavaScript for the projector
"""
start = int(config['countdown_start_stamp'])
duration = int(config['countdown_time'])
pause = int(config['countdown_pause_stamp'])
state = config['countdown_state']
return {
'load_file': static('javascript/countdown.js'),
'projector_countdown_start': start,
'projector_countdown_duration': duration,
'projector_countdown_pause': pause,
'projector_countdown_state': state}
def get_projector_html():
"""
Returns an html-code to show on the projector.
"""
return render_to_string('projector/overlay_countdown_projector.html')
return Overlay(name, get_widget_html, get_projector_html, get_projector_js)
@receiver(projector_overlays, dispatch_uid="projector_overlay_message")
def projector_overlay_message(sender, **kwargs):
"""
Receiver to show the overlay_message on the projector or the form in the
overlay-widget on the dashboard.
"""
name = 'projector_message'
request = kwargs.get('request', None)
def get_widget_html():
"""
Returns the the html-code to show in the overly-widget.
"""
return render_to_string('projector/overlay_message_widget.html', csrf(request))
def get_projector_html():
"""
Returns an html-code to show on the projector.
"""
if config['projector_message']:
return render_to_string('projector/overlay_message_projector.html',
{'message': config['projector_message']})
return None
return Overlay(name, get_widget_html, get_projector_html)
@receiver(projector_overlays, dispatch_uid="projector_clock")
def projector_clock(sender, **kwargs):
"""
Receiver to show the clock on the projector.
"""
name = 'projector_clock'
def get_projector_html():
"""
Returns the html-code for the clock.
"""
return render_to_string('projector/overlay_clock_projector.html')
def get_projector_js():
"""
Returns JavaScript for the projector
"""
return {'load_file': static('javascript/clock.js'),
'server_time': int(time())}
return Overlay(name, None, get_projector_html, get_projector_js,
allways_active=True)