148 lines
3.5 KiB
Python
148 lines
3.5 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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openslides.projector.api
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~~~~~~~~~~~~~~~~~~~~~~~~
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Useful functions 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 django.template.loader import render_to_string
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from openslides.config.models import config
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from openslides.projector.projector import SLIDE, Slide, Widget
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def split_sid(sid):
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"""
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Slit a SID in the model-part and in the model-id
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"""
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try:
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data = sid.split('-')
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except AttributeError:
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return None
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if len(data) == 2:
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model = data[0]
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id = data[1]
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return (model, id)
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if len(data) == 1:
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try:
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return (SLIDE[data[0]].key, None)
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except KeyError:
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return None
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return None
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def get_slide_from_sid(sid, element=False):
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"""
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Return the Slide for an given sid.
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If element== False, return the slide-dict,
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else, return the object.
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"""
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try:
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key, id = split_sid(sid)
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except TypeError:
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return None
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if id is not None:
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try:
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object = SLIDE[key].model.objects.get(pk=id)
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except SLIDE[key].model.DoesNotExist:
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return None
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if element:
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return object
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return object.slide()
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try:
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return SLIDE[key].func()
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except KeyError:
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return None
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def get_active_slide(only_sid=False):
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"""
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Returns the active slide. If no slide is active, or it can not find an Item,
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return None
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if only_sid is True, returns only the id of this item. Returns None if not
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Item is active.
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"""
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sid = config["presentation"]
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if only_sid:
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return sid
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return get_slide_from_sid(sid)
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def set_active_slide(sid, argument=None):
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"""
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Set the active Slide.
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"""
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config["presentation"] = sid
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config['presentation_argument'] = argument
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def register_slidemodel(model, model_name=None, control_template=None,
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weight=0):
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"""
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Register a Model as a slide.
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"""
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if model_name is None:
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model_name = model.prefix
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if control_template is None:
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control_template = 'projector/default_control_slidemodel.html'
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category = model.__module__.split('.')[0]
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SLIDE[model_name] = Slide(
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model_slide=True,
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model=model,
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category=category,
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key=model.prefix,
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model_name=model_name,
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control_template=control_template,
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weight=weight,
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)
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def register_slidefunc(key, func, control_template=None, weight=0, name=''):
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"""
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Register a function for as a slide.
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"""
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if control_template is None:
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control_template = 'projector/default_control_slidefunc.html'
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category = func.__module__.split('.')[0]
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SLIDE[key] = Slide(
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model_slide=False,
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func=func,
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category=category,
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key=key,
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control_template=control_template,
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weight=weight,
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name=name,
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)
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def projector_message_set(message, sid=None):
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"""
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Set the overlay-message.
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if sid is set, only show the message on the sid-slide.
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"""
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from models import ProjectorOverlay
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config['projector_message'] = message
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try:
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overlay = ProjectorOverlay.objects.get(def_name='Message')
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except ProjectorOverlay.DoesNotExist:
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overlay = ProjectorOverlay(def_name='Message', active=False)
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overlay.sid=sid
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overlay.save()
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def projector_message_delete():
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"""
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Delete the overlay-message.
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"""
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config['projector_message'] = ''
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