50 lines
2.2 KiB
Factor
50 lines
2.2 KiB
Factor
! Copyright (C) 2009 Sam Anklesaria
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! See http://factorcode.org/license.txt for BSD license.
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USING: arrays accessors combinators kernel math
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models models.combinators namespaces sequences
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ui.gadgets ui.gadgets.controls ui.gadgets.layout
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ui.gadgets.tracks ui.gestures ui.gadgets.line-support ;
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EXCLUDE: ui.gadgets.editors => model-field ;
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IN: ui.gadgets.poppers
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TUPLE: popped < model-field { fatal? initial: t } ;
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TUPLE: popped-editor < multiline-editor ;
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: <popped> ( text -- gadget ) <basic> init-field popped-editor popped (new-field) swap >>model* ;
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: set-expansion ( popped size -- ) over dup parent>> [ children>> index ] [ sizes>> ] bi set-nth relayout ;
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: new-popped ( popped -- ) insertion-point "" <popped>
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[ rot 1 + f (track-add-at) ] keep [ relayout ] [ request-focus ] bi ;
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: focus-prev ( popped -- ) dup parent>> children>> length 1 =
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[ drop ] [
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insertion-point [ 1 - dup -1 = [ drop 1 ] when ] [ children>> ] bi* nth
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[ request-focus ] [ editor>> end-of-document ] bi
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] if ;
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: initial-popped ( popper -- ) "" <popped> [ f track-add drop ] keep request-focus ;
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TUPLE: popper < track { unfocus-hook initial: [ drop ] } ;
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! list of strings is model (make shown objects implement sequence protocol)
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: <popper> ( model -- popper ) vertical popper new-track swap >>model ;
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M: popped handle-gesture swap {
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{ gain-focus [ 1 set-expansion f ] }
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{ lose-focus [ dup parent>>
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[ [ unfocus-hook>> call( a -- ) ] curry [ f set-expansion ] bi ]
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[ drop ] if* f
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] }
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{ T{ key-up f f "RET" } [ dup editor>> delete-previous-character new-popped f ] }
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{ T{ key-up f f "BACKSPACE" } [ dup editor>> editor-string "" =
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[ dup fatal?>> [ [ focus-prev ] [ unparent ] bi ] [ t >>fatal? drop ] if ]
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[ f >>fatal? drop ] if f
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] }
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[ swap call-next-method ]
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} case ;
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M: popper handle-gesture swap T{ button-down f f 1 } =
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[ hand-click# get 2 = [ initial-popped ] [ drop ] if ] [ drop ] if f ;
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M: popper model-changed
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[ children>> [ unparent ] each ]
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[ [ value>> [ <popped> ] map ] dip [ f track-add ] reduce request-focus ] bi ;
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M: popped pref-dim* editor>> [ pref-dim* first ] [ line-height ] bi 2array ;
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M: popper focusable-child* children>> [ t ] [ first ] if-empty ; |