365 lines
11 KiB
Python
365 lines
11 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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openslides.projector.views
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~~~~~~~~~~~~~~~~~~~~~~~~~~
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Views for the projector app.
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:copyright: 2011, 2012 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 datetime import datetime
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from time import time
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from django.conf import settings
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from django.contrib import messages
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from django.core.urlresolvers import reverse
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from django.db.models import Q
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from django.dispatch import receiver
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from django.utils.datastructures import SortedDict
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from django.utils.importlib import import_module
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from django.utils.translation import ugettext_lazy as _
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from openslides.utils.template import render_block_to_string, Tab
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from openslides.utils.utils import html_strong
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from openslides.utils.views import (TemplateView, RedirectView, CreateView,
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UpdateView, DeleteView, AjaxMixin)
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from openslides.config.models import config
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from openslides.projector.api import (get_active_slide, set_active_slide,
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projector_message_set, projector_message_delete, get_slide_from_sid)
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from openslides.projector.models import ProjectorOverlay, ProjectorSlide
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from openslides.projector.projector import SLIDE, Widget
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from openslides.projector.signals import projector_overlays
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class DashboardView(TemplateView, AjaxMixin):
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"""
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Overview over all possible slides, the overlays and a liveview.
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"""
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template_name = 'projector/dashboard.html'
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permission_required = 'projector.can_see_dashboard'
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def get_projector_overlays(self):
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overlays = []
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for receiver, name in projector_overlays.send(sender='registerer',
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register=True):
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if name is not None:
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try:
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projector_overlay = ProjectorOverlay.objects.get(
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def_name=name)
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except ProjectorOverlay.DoesNotExist:
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projector_overlay = ProjectorOverlay(def_name=name,
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active=False)
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projector_overlay.save()
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overlays.append(projector_overlay)
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return overlays
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def post(self, request, *args, **kwargs):
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if 'message' in request.POST:
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projector_message_set(request.POST['message_text'])
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elif 'message-clean' in request.POST:
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projector_message_delete()
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if request.is_ajax():
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return self.ajax_get(request, *args, **kwargs)
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return self.get(request, *args, **kwargs)
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def get_ajax_context(self, **kwargs):
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return {
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'overlay_message': config['projector_message'],
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}
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def get_context_data(self, **kwargs):
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context = super(DashboardView, self).get_context_data(**kwargs)
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widgets = SortedDict()
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for app in settings.INSTALLED_APPS:
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try:
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mod = import_module(app + '.views')
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except ImportError:
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continue
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appname = mod.__name__.split('.')[0]
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try:
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modul_widgets = mod.get_widgets(self.request)
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except AttributeError:
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continue
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for widget in modul_widgets:
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if self.request.user.has_perm(widget.permission_required):
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widgets[widget.get_name()] = widget
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context.update({
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'countdown_time': config['countdown_time'],
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'countdown_state' : config['countdown_state'],
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'overlays': self.get_projector_overlays(),
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'widgets': widgets,
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})
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return context
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class Projector(TemplateView, AjaxMixin):
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"""
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The Projector-Page.
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"""
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permission_required = 'projector.can_see_projector'
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@property
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def data(self):
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try:
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return self._data
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except AttributeError:
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pass
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sid = self.kwargs['sid']
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if sid is None:
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try:
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data = get_active_slide()
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except AttributeError: #TODO: It has to be an Slide.DoesNotExist
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data = None
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ajax = 'on'
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else:
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data = get_slide_from_sid(sid)
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ajax = 'off'
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if data is None:
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data = {
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'title': config['event_name'],
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'template': 'projector/default.html',
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}
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data['overlays'] = []
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data['ajax'] = ajax
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# Projector Overlays
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if self.kwargs['sid'] is None:
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active_defs = ProjectorOverlay.objects.filter(active=True) \
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.filter(Q(sid=sid) | Q(sid=None)).values_list('def_name',
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flat=True)
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for receiver, response in projector_overlays.send(sender=sid,
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register=False, call=active_defs):
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if response is not None:
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data['overlays'].append(response)
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self._data = data
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return data
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def get_template_names(self):
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return [self.data['template']]
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def get_context_data(self, **kwargs):
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context = super(Projector, self).get_context_data(**kwargs)
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context.update(self.data)
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return context
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def get_ajax_context(self, **kwargs):
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content = render_block_to_string(self.get_template_names()[0],
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'content', self.data)
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scrollcontent = render_block_to_string(self.get_template_names()[0],
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'scrollcontent', self.data)
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context = super(Projector, self).get_ajax_context(**kwargs)
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content_hash = hash(content)
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context.update({
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'content': content,
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'scrollcontent': scrollcontent,
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'time': datetime.now().strftime('%H:%M'),
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'overlays': self.data['overlays'],
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'title': self.data['title'],
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'bigger': config['bigger'],
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'up': config['up'],
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'content_hash': content_hash,
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})
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return context
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def get(self, request, *args, **kwargs):
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if request.is_ajax():
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return self.ajax_get(request, *args, **kwargs)
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return super(Projector, self).get(request, *args, **kwargs)
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class ActivateView(RedirectView):
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"""
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Activate a Slide.
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"""
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permission_required = 'projector.can_manage_projector'
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url = 'dashboard'
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allow_ajax = True
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def pre_redirect(self, request, *args, **kwargs):
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try:
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set_active_slide(kwargs['sid'], kwargs['argument'])
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except KeyError:
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set_active_slide(kwargs['sid'])
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config['up'] = 0
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config['bigger'] = 100
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class ProjectorEdit(RedirectView):
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"""
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Scale or scroll the projector.
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"""
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permission_required = 'projector.can_manage_projector'
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url = 'dashboard'
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allow_ajax = True
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def pre_redirect(self, request, *args, **kwargs):
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direction = kwargs['direction']
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if direction == 'bigger':
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config['bigger'] = int(config['bigger']) + 20
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elif direction == 'smaller':
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config['bigger'] = int(config['bigger']) - 20
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elif direction == 'up':
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config['up'] = int(config['up']) - 10
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elif direction == 'down':
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if config['up'] < 0:
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config['up'] = int(config['up']) + 10
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elif direction == 'clean':
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config['up'] = 0
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config['bigger'] = 100
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class CountdownEdit(RedirectView):
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"""
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Start, stop or reset the countdown.
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"""
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permission_required = 'projector.can_manage_projector'
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url = 'dashboard'
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allow_ajax = True
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def pre_redirect(self, request, *args, **kwargs):
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command = kwargs['command']
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# countdown_state is one of 'inactive', 'paused' and 'active', 'expired'
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if command in ['reset', 'start', 'stop']:
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config['countdown_time'] = config['countdown_time']
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if command == 'reset':
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config['countdown_start_stamp'] = time()
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config['countdown_pause_stamp'] = 0
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config['countdown_state'] = 'inactive'
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elif command == 'start':
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# if we had stopped the countdown resume were we left of
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if config['countdown_state'] == 'paused':
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start_stamp = config['countdown_start_stamp']
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pause_stamp = config['countdown_pause_stamp']
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now = time()
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config['countdown_start_stamp'] = now - \
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(pause_stamp - start_stamp)
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else:
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config['countdown_start_stamp'] = time()
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config['countdown_state'] = 'active'
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config['countdown_pause_stamp'] = 0
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elif command == 'stop':
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if config['countdown_state'] == 'active':
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config['countdown_pause_stamp'] = time()
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config['countdown_state'] = 'paused'
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elif command == 'set-default':
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try:
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config['countdown_time'] = \
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int(self.request.GET['countdown_time'])
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except ValueError:
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pass
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except AttributeError:
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pass
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def get_ajax_context(self, **kwargs):
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return {
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'state': config['countdown_state'],
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'countdown_time': config['countdown_time'],
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}
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class ActivateOverlay(RedirectView):
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"""
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Activate or deactivate an overlay.
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"""
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url = 'dashboard'
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allow_ajax = True
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permission_required = 'projector.can_manage_projector'
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@property
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def overlay(self):
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try:
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return self._overlay
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except AttributeError:
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self._overlay = ProjectorOverlay.objects.get(
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def_name=self.kwargs['name'])
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return self._overlay
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def pre_redirect(self, request, *args, **kwargs):
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if kwargs['activate']:
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self.overlay.active = True
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else:
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self.overlay.active = False
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self.overlay.save()
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def get_ajax_context(self, **kwargs):
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return {
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'active': self.overlay.active,
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'def_name': self.overlay.def_name,
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}
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class CustomSlideCreateView(CreateView):
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"""
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Create a custom slide.
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"""
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permission_required = 'agenda.can_manage_agenda'
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template_name = 'projector/new.html'
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model = ProjectorSlide
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context_object_name = 'customslide'
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success_url = 'dashboard'
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apply_url = 'customslide_edit'
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class CustomSlideUpdateView(UpdateView):
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"""
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Update a custom slide.
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"""
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permission_required = 'projector.can_manage_projector'
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template_name = 'projector/new.html'
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model = ProjectorSlide
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context_object_name = 'customslide'
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success_url = 'dashboard'
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apply_url = 'customslide_edit'
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class CustomSlideDeleteView(DeleteView):
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"""
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Delete a custom slide.
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"""
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permission_required = 'projector.can_manage_projector'
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model = ProjectorSlide
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url = 'dashboard'
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def register_tab(request):
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"""
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Register the projector tab.
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"""
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selected = True if request.path.startswith('/projector/') else False
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return Tab(
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title=_('Dashboard'),
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url=reverse('dashboard'),
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permission=request.user.has_perm('projector.can_manage_projector') or
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request.user.has_perm('projector.can_see_dashboard'),
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selected=selected,
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)
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def get_widgets(request):
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"""
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Return the custom slide widget.
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"""
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return [
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Widget(
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name='projector',
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template='projector/widget.html',
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context={
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'slides': ProjectorSlide.objects.all(),
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'welcomepage_is_active': not bool(config["presentation"])},
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permission_required = 'projector.can_manage_projector',
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),
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]
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