6aae8bff15
* Update projector when polls are updated. * Update projector when assignment candidates are updated * Update projector when motion submitter are updated * Fixed the assignment publish poll view * Added projector.api.register_slide_model
119 lines
3.5 KiB
Python
119 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.projector
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Slide 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 time import time
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from django.dispatch import receiver
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from django.template.loader import render_to_string
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from openslides.config.api import config
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from django.template import RequestContext
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from openslides.utils.exceptions import OpenSlidesError
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class Widget(object):
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"""
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Class for a Widget for the Projector-Tab.
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"""
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def __init__(self, request, name, html=None, template=None, context={},
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permission_required=None, display_name=None, default_column=1,
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default_weight=0):
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self.name = name
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if display_name is None:
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self.display_name = name.capitalize()
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else:
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self.display_name = display_name
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if html is not None:
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self.html = html
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elif template is not None:
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self.html = render_to_string(
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template_name=template,
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dictionary=context,
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context_instance=RequestContext(request))
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else:
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raise OpenSlidesError('A Widget must have either a html or a template argument.')
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self.permission_required = permission_required
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self.default_column = default_column
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self.default_weight = default_weight
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def get_name(self):
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return self.name.lower()
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def get_html(self):
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return self.html
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def get_title(self):
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return self.display_name
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def __repr__(self):
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return repr(self.display_name)
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def __unicode__(self):
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return unicode(self.display_name)
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class Overlay(object):
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"""
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Represents an overlay which can be seen on the projector.
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"""
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def __init__(self, name, get_widget_html, get_projector_html,
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get_javascript=None, allways_active=False):
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self.name = name
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self.widget_html_callback = get_widget_html
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self.projector_html_callback = get_projector_html
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self.javascript_callback = get_javascript
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self.allways_active = allways_active
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def get_widget_html(self):
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value = None
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if self.widget_html_callback is not None:
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value = self.widget_html_callback()
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return value
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def get_projector_html(self):
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return self.get_html_wrapper(self.projector_html_callback())
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def get_javascript(self):
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if self.javascript_callback is None:
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value = {}
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else:
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value = self.javascript_callback()
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return value
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def get_html_wrapper(self, inner_html):
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full_html = ''
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if inner_html is not None:
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full_html = '<div id="overlay_%s">%s</div>' % (self.name, inner_html)
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return full_html
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def is_active(self):
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return self.allways_active or self.name in config['projector_active_overlays']
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def set_active(self, active):
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"""
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Publish or depublish the overlay on the projector.
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publish, if active is true,
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depublish, if active is false.
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"""
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active_overlays = set(config['projector_active_overlays'])
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if active:
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active_overlays.add(self.name)
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else:
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active_overlays.discard(self.name)
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config['projector_active_overlays'] = list(active_overlays)
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def show_on_projector(self):
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return self.is_active() and self.get_projector_html() is not None
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