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