150 lines
4.6 KiB
Python
150 lines
4.6 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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openslides.projector.signals
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Signals for the projector app.
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:copyright: 2011–2013 by OpenSlides team, see AUTHORS.
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:license: GNU GPL, see LICENSE for more details.
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"""
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from time import time
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from django.dispatch import Signal, receiver
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from django import forms
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from django.utils.translation import ugettext_lazy, ugettext as _
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from django.template.loader import render_to_string
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from django.core.context_processors import csrf
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from openslides.config.api import config
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from openslides.config.signals import config_signal
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from openslides.config.api import ConfigVariable, ConfigPage
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from .projector import Overlay
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projector_overlays = Signal(providing_args=['request'])
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@receiver(config_signal, dispatch_uid='setup_projector_config_variables')
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def setup_projector_config_variables(sender, **kwargs):
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"""
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Projector config variables for OpenSlides. They are not shown on a
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config page.
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"""
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presentation = ConfigVariable(
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name='presentation',
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default_value='')
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presentation_argument = ConfigVariable(
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name='presentation_argument',
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default_value=None)
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projector_message = ConfigVariable(
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name='projector_message',
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default_value='')
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countdown_time = ConfigVariable(
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name='countdown_time',
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default_value=60)
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countdown_start_stamp = ConfigVariable(
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name='countdown_start_stamp',
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default_value=0)
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countdown_pause_stamp = ConfigVariable(
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name='countdown_pause_stamp',
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default_value=0)
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countdown_state = ConfigVariable(
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name='countdown_state',
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default_value='inactive')
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bigger = ConfigVariable(
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name='bigger',
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default_value=100)
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up = ConfigVariable(
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name='up',
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default_value=0)
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projector_active_overlays = ConfigVariable(
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name='projector_active_overlays',
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default_value=[])
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return ConfigPage(
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title='No title here', url='bar', required_permission=None, variables=(
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presentation, presentation_argument, projector_message,
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countdown_time, countdown_start_stamp, countdown_pause_stamp,
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countdown_state, bigger, up, projector_active_overlays))
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@receiver(projector_overlays, dispatch_uid="projector_countdown")
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def countdown(sender, **kwargs):
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"""
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Receiver for the countdown.
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"""
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name = 'projector_countdown'
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request = kwargs.get('request', None)
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def get_widget_html():
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"""
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Returns the the html-code to show in the overly-widget.
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"""
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context = {
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'countdown_time': config['countdown_time'],
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'countdown_state': config['countdown_state']}
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context.update(csrf(request))
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return render_to_string('projector/overlay_countdown_widget.html', context)
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def get_projector_html():
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"""
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Returns an html-code to show on the projector.
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"""
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start = config['countdown_start_stamp']
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duration = config['countdown_time']
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pause = config['countdown_pause_stamp']
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if config['countdown_state'] == 'active':
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seconds = max(0, int(start + duration - time()))
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elif config['countdown_state'] == 'paused':
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seconds = max(0, int(start + duration - pause))
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elif config['countdown_state'] == 'inactive':
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seconds = max(0, int(duration))
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else:
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seconds = 0
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if seconds == 0:
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config['countdown_state'] = 'expired'
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return render_to_string('projector/overlay_countdown_projector.html',
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{'seconds': '%02d:%02d' % (seconds / 60, seconds % 60)})
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return Overlay(name, get_widget_html, get_projector_html)
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@receiver(projector_overlays, dispatch_uid="projector_message")
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def projector_message(sender, **kwargs):
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"""
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Receiver to show the overlay_message on the projector or the form in the
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overlay-widget on the dashboard.
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"""
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name = 'projector_message'
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request = kwargs.get('request', None)
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def get_widget_html():
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"""
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Returns the the html-code to show in the overly-widget.
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"""
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return render_to_string('projector/overlay_message_widget.html', csrf(request))
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def get_projector_html():
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"""
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Returns an html-code to show on the projector.
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"""
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if config['projector_message']:
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return render_to_string('projector/overlay_message_projector.html',
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{'message': config['projector_message']})
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return None
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return Overlay(name, get_widget_html, get_projector_html)
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