util.dataforms: Skip all fields for the 'cancel' form type
XEP-0004 says:
> a data form of type "cancel" SHOULD NOT contain any <field/> elements.
The title and instructions don't seem to be of much value in this case
either.
I'm not aware of 'cancel' being used anywhere, so this should break
nothing. Early return is always nice.
--- a/util/dataforms.lua Fri Aug 03 21:05:48 2018 +0200
+++ b/util/dataforms.lua Fri Aug 03 21:06:59 2018 +0200
@@ -28,6 +28,9 @@
function form_t.form(layout, data, formtype)
if not formtype then formtype = "form" end
local form = st.stanza("x", { xmlns = xmlns_forms, type = formtype });
+ if formtype == "cancel" then
+ return form;
+ end
if layout.title then
form:tag("title"):text(layout.title):up();
end