OpenSlides/openslides/agenda/signals.py

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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
openslides.agenda.signals
~~~~~~~~~~~~~~~~~~~~~~~~~
Signals for the agenda app.
:copyright: (c) 20112013 by the OpenSlides team, see AUTHORS.
:license: GNU GPL, see LICENSE for more details.
"""
from django.dispatch import receiver
from django import forms
from django.utils.translation import ugettext_lazy, ugettext_noop, ugettext as _
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from django.template.loader import render_to_string
from openslides.config.signals import config_signal
from openslides.config.api import ConfigVariable, ConfigPage
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from openslides.projector.signals import projector_overlays
from openslides.projector.projector import Overlay
from openslides.projector.api import get_active_slide, get_slide_from_sid
from .models import Speaker, Item
# TODO: Reinsert the datepicker scripts in the template
@receiver(config_signal, dispatch_uid='setup_agenda_config_page')
def setup_agenda_config_page(sender, **kwargs):
"""
Agenda config variables.
"""
# TODO: Insert validator for the format or use other field carefully.
agenda_start_event_date_time = ConfigVariable(
name='agenda_start_event_date_time',
default_value='',
form_field=forms.CharField(
widget=forms.DateTimeInput(format='%d.%m.%Y %H:%M'),
required=False,
label=ugettext_lazy('Begin of event'),
help_text=_('Input format: DD.MM.YYYY HH:MM')))
extra_stylefiles = ['styles/timepicker.css', 'styles/jquery-ui/jquery-ui.custom.min.css']
extra_javascript = ['javascript/jquery-ui.custom.min.js',
'javascript/jquery-ui-timepicker-addon.min.js',
'javascript/jquery-ui-sliderAccess.min.js',
'javascript/agenda-config-datepicker.js']
return ConfigPage(title=ugettext_noop('Agenda'),
url='agenda',
required_permission='config.can_manage',
weight=20,
variables=(agenda_start_event_date_time,),
extra_context={'extra_stylefiles': extra_stylefiles,
'extra_javascript': extra_javascript})
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@receiver(projector_overlays, dispatch_uid="agenda_list_of_speakers")
def agenda_list_of_speakers(sender, **kwargs):
"""
Receiver for the list of speaker overlay.
"""
name = 'agenda_speaker'
def get_widget_html():
"""
Returns the the html-code to show in the overly-widget.
"""
return render_to_string('agenda/overlay_speaker_widget.html')
def get_projector_html():
"""
Returns an html-code to show on the projector.
"""
slide = get_slide_from_sid(get_active_slide(only_sid=True), element=True)
if not isinstance(slide, Item):
# Only show list of speakers on Agenda-Items
return None
speakers = Speaker.objects.filter(time=None, item=slide)[:5]
context = {'speakers': speakers}
return render_to_string('agenda/overlay_speaker_projector.html', context)
return Overlay(name, get_widget_html, get_projector_html)