74 lines
2.9 KiB
Python
74 lines
2.9 KiB
Python
import json
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import logging
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from lxml import etree
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from mitxmako.shortcuts import render_to_response, render_to_string
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from x_module import XModule
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log = logging.getLogger("mitx.courseware.modules")
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class Module(XModule):
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id_attribute = 'youtube'
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video_time = 0
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def handle_ajax(self, dispatch, get):
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log.debug(u"GET {0}".format(get))
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log.debug(u"DISPATCH {0}".format(dispatch))
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if dispatch == 'goto_position':
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self.position = int(float(get['position']))
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log.debug(u"NEW POSITION {0}".format(self.position))
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return json.dumps({'success':True})
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raise Http404()
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def get_state(self):
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log.debug(u"STATE POSITION {0}".format(self.position))
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return json.dumps({ 'position':self.position })
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@classmethod
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def get_xml_tags(c):
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'''Tags in the courseware file guaranteed to correspond to the module'''
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return ["video"]
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def video_list(self):
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l = self.youtube.split(',')
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l = [i.split(":") for i in l]
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return json.dumps(dict(l))
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def get_html(self):
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return render_to_string('video.html',{'streams':self.video_list(),
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'id':self.item_id,
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'position':self.position,
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'name':self.name,
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'annotations':self.annotations})
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def get_init_js(self):
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'''JavaScript code to be run when problem is shown. Be aware
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that this may happen several times on the same page
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(e.g. student switching tabs). Common functions should be put
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in the main course .js files for now. '''
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log.debug(u"INIT POSITION {0}".format(self.position))
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return render_to_string('video_init.js',{'streams':self.video_list(),
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'id':self.item_id,
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'position':self.position})+self.annotations_init
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def get_destroy_js(self):
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return "videoDestroy(\"{0}\");".format(self.item_id)+self.annotations_destroy
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def __init__(self, system, xml, item_id, state=None):
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XModule.__init__(self, system, xml, item_id, state)
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xmltree=etree.fromstring(xml)
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self.youtube = xmltree.get('youtube')
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self.name = xmltree.get('name')
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self.position = 0
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if state != None:
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state = json.loads(state)
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if 'position' in state:
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self.position = int(float(state['position']))
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self.annotations=[(e.get("name"),self.render_function(e)) \
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for e in xmltree]
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self.annotations_init="".join([e[1]['init_js'] for e in self.annotations if 'init_js' in e[1]])
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self.annotations_destroy="".join([e[1]['destroy_js'] for e in self.annotations if 'destroy_js' in e[1]])
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