def post(self, widget_id):
"""Handles POST requests, for parameterized widgets."""
params = self.payload.get('params', {})
if isinstance(params, list):
new_params = {}
for item in params:
new_params[item['name']] = item['default_value']
params = new_params
state_params_dict = {}
state_params_given = self.payload.get('state_params')
if state_params_given:
for param in state_params_given:
# Pick a random parameter for each key.
state_params_dict[param['name']] = (
utils.get_random_choice(param['values']))
# TODO(sll): In order to unify this with InteractiveWidgetHandler,
# we need a convention for which params must be JSONified and which
# should not. Fix this.
response = NonInteractiveWidget.get_with_params(widget_id, params)
self.render_json({
'widget': response,
'parent_index': self.request.get('parent_index'),
})
def get(self, widget_id):
"""Handles GET requests."""
try:
self.render_json({
'widget': NonInteractiveWidget.get_with_params(widget_id, {}),
})
except:
raise self.PageNotFoundException
def parse_content_into_html(content_array, block_number, params=None):
"""Takes a Content array and transforms it into HTML.
Args:
content_array: an array, each of whose members is of type Content. This
object has two keys: type and value. The 'type' is one of the
following:
- 'text'; then the value is a text string
- 'image'; then the value is an image ID
- 'video'; then the value is a video ID
- 'widget'; then the value is a widget ID
block_number: the number of content blocks preceding this one.
params: any parameters used for templatizing text strings.
Returns:
the HTML string representing the array.
Raises:
InvalidInputException: if content has no 'type' attribute, or an invalid
'type' attribute.
"""
if params is None:
params = {}
html = ''
widget_array = []
widget_counter = 0
for content in content_array:
if content.type == 'widget':
try:
widget = NonInteractiveWidget.get_with_params(
content.value, params)
widget_counter += 1
html += feconf.JINJA_ENV.get_template('content.html').render({
'type': content.type, 'blockIndex': block_number,
'index': widget_counter})
widget_array.append({
'blockIndex': block_number,
'index': widget_counter,
'code': widget.raw})
except utils.EntityIdNotFoundError:
# Ignore empty widget content.
pass
elif (content.type in ['text', 'image', 'video']):
if content.type == 'text':
value = utils.parse_with_jinja(content.value, params)
else:
value = content.value
html += feconf.JINJA_ENV.get_template('content.html').render({
'type': content.type, 'value': value})
else:
raise utils.InvalidInputException(
'Invalid content type %s', content.type)
return html, widget_array
def parse_content_into_html(content_array, block_number, params=None):
"""Takes a Content array and transforms it into HTML.
Args:
content_array: an array, each of whose members is of type Content. This
object has two keys: type and value. The 'type' is one of the
following:
- 'text'; then the value is a text string
- 'image'; then the value is an image ID
- 'video'; then the value is a video ID
- 'widget'; then the value is a JSON-encoded dict with keys
'id' and 'params', from which the raw widget HTML can be
constructed
block_number: the number of content blocks preceding this one.
params: any parameters used for templatizing text strings.
Returns:
the HTML string representing the array.
Raises:
InvalidInputException: if content has no 'type' attribute, or an invalid
'type' attribute.
"""
if params is None:
params = {}
html = ''
widget_array = []
widget_counter = 0
for content in content_array:
if content.type in ['text', 'image', 'video']:
if content.type == 'text':
value = utils.parse_with_jinja(content.value, params)
else:
value = content.value
html += feconf.JINJA_ENV.get_template(
'reader/content.html').render({
'type': content.type, 'value': value})
elif content.type == 'widget':
# Ignore empty widget specifications.
if not content.value:
continue
widget_dict = json.loads(content.value)
widget = NonInteractiveWidget.get_with_params(
widget_dict['id'], widget_dict['params'])
html += feconf.JINJA_ENV.get_template(
'reader/content.html').render({
'blockIndex': block_number,
'index': widget_counter,
'type': content.type,
})
widget_array.append({
'blockIndex': block_number,
'index': widget_counter,
'raw': widget['raw'],
})
widget_counter += 1
else:
raise utils.InvalidInputException(
'Invalid content type %s', content.type)
return html, widget_array