Files
edx-platform/djangoapps/courseware/modules/seq_module.py
Prem Sichanugrist 92971127b3 Minor code style and assets fix
* Change looping code style in seq_module
* Clone and keep the latest version of jasmine-jquery locally
* Use django-pipeline asset tags
2012-05-31 13:24:25 -04:00

99 lines
3.1 KiB
Python

import json
from lxml import etree
from mitxmako.shortcuts import render_to_string
from x_module import XModule
# HACK: This shouldn't be hard-coded to two types
# OBSOLETE: This obsoletes 'type'
class_priority = ['video', 'problem']
class Module(XModule):
''' Layout module which lays out content in a temporal sequence
'''
id_attribute = 'id'
def get_state(self):
return json.dumps({ 'position':self.position })
@classmethod
def get_xml_tags(c):
obsolete_tags = ["sequential", 'tab']
modern_tags = ["videosequence"]
return obsolete_tags + modern_tags
def get_html(self):
self.render()
return self.content
def handle_ajax(self, dispatch, get):
if dispatch=='goto_position':
self.position = int(get['position'])
return json.dumps({'success':True})
raise self.system.exception404
def render(self):
if self.rendered:
return
def j(m):
''' jsonify contents so it can be embedded in a js array
We also need to split </script> tags so they don't break
mid-string'''
content=json.dumps(m['content'])
content=content.replace('</script>', '<"+"/script>')
return {'content':content,
'type': m['type']}
## Returns a set of all types of all sub-children
child_classes = [set([i.tag for i in e.iter()]) for e in self.xmltree]
titles = ["\n".join([i.get("name").strip() for i in e.iter() if i.get("name") != None]) \
for e in self.xmltree]
self.contents = [j(self.render_function(e)) for e in self.xmltree]
for contents, title in zip(self.contents, titles):
contents['title'] = title
for (content, element_class) in zip(self.contents, child_classes):
new_class = 'other'
for c in class_priority:
if c in element_class:
new_class = c
content['type'] = new_class
params={'items':self.contents,
'id':self.item_id,
'position': self.position,
'titles':titles,
'tag':self.xmltree.tag}
# TODO/BUG: Destroy JavaScript should only be called for the active view
# This calls it for all the views
#
# To fix this, we'd probably want to have some way of assigning unique
# IDs to sequences.
destroy_js="".join([e['destroy_js'] for e in self.contents if 'destroy_js' in e])
if self.xmltree.tag in ['sequential', 'videosequence']:
self.content=render_to_string('seq_module.html',params)
if self.xmltree.tag == 'tab':
self.content=render_to_string('tab_module.html',params)
self.rendered = True
def __init__(self, system, xml, item_id, state=None):
XModule.__init__(self, system, xml, item_id, state)
self.xmltree = etree.fromstring(xml)
self.position = 1
if state != None:
state = json.loads(state)
if 'position' in state: self.position = int(state['position'])
self.rendered = False