Get the first <x/> element in this
stanza, or nil if none found.
wanted_xmlns: | [String] Optional, find the first <x/> element having this xmlns,
|
wanted_xmlns can also be a derivate of XMPPElement from which the namespace will be
taken
[Source]
24: def x(wanted_xmlns=nil)
25: if wanted_xmlns.kind_of? Class and wanted_xmlns.ancestors.include? XMPPElement
26: wanted_xmlns = wanted_xmlns.new.namespace
27: end
28:
29: each_element('x') { |x|
30: if wanted_xmlns.nil? or wanted_xmlns == x.namespace
31: return x
32: end
33: }
34: nil
35: end