factor/library/ui/tools/help.factor

51 lines
1.4 KiB
Factor

! Copyright (C) 2006 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
IN: gadgets-help
USING: gadgets gadgets-borders gadgets-buttons gadgets-frames
gadgets-panes gadgets-presentations gadgets-search
gadgets-scrolling help kernel models namespaces sequences ;
TUPLE: help-gadget history ;
: show-help ( link help -- )
dup help-gadget-history add-history
help-gadget-history set-model ;
: go-home ( help -- ) "handbook" swap show-help ;
: find-help-gadget [ help-gadget? ] find-parent ;
: history-action find-help-gadget help-gadget-history ;
: <help-toolbar> ( -- gadget )
[
"Back" [ history-action go-back ] <bevel-button> ,
"Forward" [ history-action go-forward ] <bevel-button> ,
"Home" [ find-help-gadget go-home ] <bevel-button> ,
<spacing> ,
"Search" [ drop search-help-window ] <bevel-button> ,
] make-toolbar ;
: <help-pane> ( -- gadget )
gadget get help-gadget-history [ help ] <pane-control> ;
C: help-gadget ( -- gadget )
f <history> over set-help-gadget-history {
{ [ <help-toolbar> ] f f @top }
{ [ <help-pane> <scroller> ] f f @center }
} make-frame* ;
M: help-gadget gadget-title
help-gadget-history
[ "Help - " swap article-title append ] <filter> ;
M: help-gadget pref-dim*
drop { 500 600 } ;
: help-tool
[ help-gadget? ]
[ <help-gadget> ]
[ show-help ] ;
M: link show help-tool call-tool ;