WMFS's Infobar/Element low-level structure

[        ]
[ SCR33N ] => [ Infobar  ]
[        ]    [  (head)  ]  => [ Element ]
                   |           [  (head) ] => [ SLIST_HEAD(Barwin) bars;
                   |                |         [ ElemTypes type; { ElemTag, ElemLayout, ElemSelbar, ElemStatus, (ElemSystray?) }
                  ...               |         [ Geo geo;
                                   ...        [ STAILQ_ENTRY(Elements) next;
                                                         |
                                                        ...

This will be used with some functions, depending of element type :

Element* elem_tag_init(Infobar *i)
              layout
              selbar
              statustext
              systray?

void element_tag_update(Element *e)
             layout
             selbar
             statustext
             systray?