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edx-platform/common/lib/xmodule/xmodule/vertical_module.py

94 lines
3.3 KiB
Python

from xblock.fragment import Fragment
from xmodule.x_module import XModule, STUDENT_VIEW
from xmodule.seq_module import SequenceDescriptor
from xmodule.progress import Progress
from xmodule.studio_editable import StudioEditableModule, StudioEditableDescriptor
from pkg_resources import resource_string
from copy import copy
# HACK: This shouldn't be hard-coded to two types
# OBSOLETE: This obsoletes 'type'
class_priority = ['video', 'problem']
class VerticalFields(object):
has_children = True
class VerticalModule(VerticalFields, XModule, StudioEditableModule):
''' Layout module for laying out submodules vertically.'''
def student_view(self, context):
fragment = Fragment()
contents = []
child_context = {} if not context else copy(context)
child_context['child_of_vertical'] = True
for child in self.get_display_items():
rendered_child = child.render(STUDENT_VIEW, child_context)
fragment.add_frag_resources(rendered_child)
contents.append({
'id': child.location.to_deprecated_string(),
'content': rendered_child.content
})
fragment.add_content(self.system.render_template('vert_module.html', {
'items': contents,
'xblock_context': context,
}))
return fragment
def author_view(self, context):
"""
Renders the Studio preview view, which supports drag and drop.
"""
fragment = Fragment()
root_xblock = context.get('root_xblock')
is_root = root_xblock and root_xblock.location == self.location
# For the container page we want the full drag-and-drop, but for unit pages we want
# a more concise version that appears alongside the "View =>" link-- unless it is
# the unit page and the vertical being rendered is itself the unit vertical (is_root == True).
if is_root or not context.get('is_unit_page'):
self.render_children(context, fragment, can_reorder=True, can_add=True)
return fragment
def get_progress(self):
# TODO: Cache progress or children array?
children = self.get_children()
progresses = [child.get_progress() for child in children]
progress = reduce(Progress.add_counts, progresses, None)
return progress
def get_icon_class(self):
child_classes = set(child.get_icon_class() for child in self.get_children())
new_class = 'other'
for c in class_priority:
if c in child_classes:
new_class = c
return new_class
class VerticalDescriptor(VerticalFields, SequenceDescriptor, StudioEditableDescriptor):
"""
Descriptor class for editing verticals.
"""
module_class = VerticalModule
js = {'coffee': [resource_string(__name__, 'js/src/vertical/edit.coffee')]}
js_module_name = "VerticalDescriptor"
# TODO (victor): Does this need its own definition_to_xml method? Otherwise it looks
# like verticals will get exported as sequentials...
@property
def non_editable_metadata_fields(self):
non_editable_fields = super(VerticalDescriptor, self).non_editable_metadata_fields
non_editable_fields.extend([
VerticalDescriptor.due,
])
return non_editable_fields