def remove_pointer(asker, object):
result = updates.update(updates.remove_modifier(is_pointer()), object)
result = updates.update(updates.remove_modifier(has_pointer()), object)
result = updates.update(
updates.apply_to(
all_children(),
lists.update_map(remove_pointer())
),
result
)
return asker.reply(answer=result)
def add_pointer_to_bottom(asker, object):
visible_children = asker.ask(fields.get_field(visible_children()), object).firm_answer
if convert.check_hard(asker, lists.is_empty(), visible_children):
return asker.reply(answer=updates.update(is_pointer_now(), object))
else:
result = updates.update(has_pointer_now(), object)
result = updates.update(
updates.apply_to(
fields.compose(visible_children(), lists.last_element()),
add_pointer_to_bottom()
),
result
)
return asker.reply(answer=result)
def add_children_on_expanded(asker, old, new, bindings):
children = []
for p in lists.iterator(asker, lists.from_dict(bindings)):
k = asker.ask(fields.get_field(first(), p)).firm_answer
v = asker.ask(fields.get_field(second(), p)).firm_answer
prefix = strings.string_concat(k, T.from_str(": "))
new_node = node_from_term(asker, v)
new_node = updates.update(
updates.apply_to(headline(), strings.prepend_str(prefix)),
new_node
)
children.append(new_node)
return asker.reply(answer=updates.update(
fields.set_field(all_children(), T.from_list(children)),
new
))