[wmii] wmii snippet: change to previous active view

[Boo_boo]

this one is simple, but it seems very handy for me -- it allows fast switching 
between two views: current and one that was active before. 

paste this function 
----
switch_view() {
        ptag_tmp=`wmiir read /tag/sel/ctl`
        wmiir xwrite /ctl view $1
        PREV_TAG=$ptag_tmp
}
----

then replace all 'wmiir xwrite /ctl view $some_value' statements by 
'switch_view $some_value'

and add key action:
----
        #switch to previous active view 
        Key $MODKEY-z
                if [ -n $PREV_TAG ]
                then
                        switch_view $PREV_TAG
                fi
----


-- 
With best regards,
Boo-boo

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