1 ! Copyright (C) 2006, 2011 Slava Pestov
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors arrays assocs calendar colors.constants
4 combinators combinators.short-circuit documents
5 documents.elements fonts fry grouping kernel locals make math
6 math.functions math.order math.ranges math.rectangles
7 math.vectors models models.arrow namespaces opengl sequences
8 sorting splitting system timers ui.baseline-alignment
9 ui.clipboards ui.commands ui.gadgets ui.gadgets.borders
10 ui.gadgets.line-support ui.gadgets.menus ui.gadgets.scrollers
11 ui.gestures ui.pens.solid ui.render ui.text ui.theme unicode
13 IN: ui.gadgets.editors
15 TUPLE: editor < line-gadget
17 focused? blink blink-timer
21 preedit-selected-start
23 preedit-selection-mode?
26 M: editor preedit? preedit-start>> ;
30 : <loc> ( -- loc ) { 0 0 } <model> ;
32 : init-editor-locs ( editor -- editor )
36 : editor-theme ( editor -- editor )
37 monospace-font >>font ; inline
41 : new-editor ( class -- editor )
47 : <editor> ( -- editor )
52 : activate-editor-model ( editor model -- )
54 [ nip activate-model ]
55 [ swap model>> add-loc ] 2tri ;
57 : deactivate-editor-model ( editor model -- )
59 [ nip deactivate-model ]
60 [ swap model>> remove-loc ] 2tri ;
62 : blink-caret ( editor -- )
63 [ not ] change-blink relayout-1 ;
65 SYMBOL: blink-interval
67 750 milliseconds blink-interval set-global
69 : stop-blinking ( editor -- )
70 blink-timer>> [ stop-timer ] when* ;
72 : start-blinking ( editor -- )
74 blink-timer>> [ restart-timer ] when* ;
76 : restart-blinking ( editor -- )
86 [ dup caret>> activate-editor-model ]
87 [ dup mark>> activate-editor-model ]
90 '[ _ blink-caret ] blink-interval get dup <timer>
95 [ [ stop-blinking ] [ f >>blink-timer drop ] bi ]
96 [ dup caret>> deactivate-editor-model ]
97 [ dup mark>> deactivate-editor-model ] tri ;
99 : editor-caret ( editor -- loc ) caret>> value>> ;
101 : editor-mark ( editor -- loc ) mark>> value>> ;
103 : set-caret ( loc editor -- )
104 [ model>> validate-loc ] [ caret>> ] bi set-model ;
106 : set-mark ( loc editor -- )
107 [ model>> validate-loc ] [ mark>> ] bi set-model ;
109 : change-caret ( editor quot: ( loc document -- newloc ) -- )
110 [ [ [ editor-caret ] [ model>> ] bi ] dip call ] [ drop ] 2bi
113 : mark>caret ( editor -- )
114 [ editor-caret ] [ mark>> ] bi set-model ;
116 : change-caret&mark ( editor quot: ( loc document -- newloc ) -- )
117 [ change-caret ] [ drop mark>caret ] 2bi ; inline
119 : editor-line ( n editor -- str ) control-value nth ;
121 :: point>loc ( point editor -- loc )
122 point second editor y>line {
123 { [ dup 0 < ] [ drop { 0 0 } ] }
124 { [ dup editor model>> last-line# > ] [ drop editor model>> doc-end ] }
134 : clicked-loc ( editor -- loc )
135 [ hand-rel ] keep point>loc ;
137 : click-loc ( editor model -- )
138 [ clicked-loc ] dip set-model ;
140 : focus-editor ( editor -- )
141 [ start-blinking ] [ t >>focused? relayout-1 ] bi ;
143 : unfocus-editor ( editor -- )
144 [ stop-blinking ] [ f >>focused? relayout-1 ] bi ;
146 : loc>x ( loc editor -- x )
147 [ first2 swap ] dip [ editor-line ] [ font>> ] bi swap offset>x round ;
149 : loc>point ( loc editor -- loc )
150 [ loc>x ] [ [ first ] dip line>y ceiling ] 2bi 2array ;
152 : caret-loc ( editor -- loc )
153 [ editor-caret ] keep loc>point ;
155 : caret-dim ( editor -- dim )
156 [ 0 ] dip line-height 2array ;
158 : scroll>caret ( editor -- )
159 dup graft-state>> second [
161 [ caret-loc ] [ caret-dim { 2 1 } v+ ] bi <rect>
167 : draw-caret? ( editor -- ? )
168 { [ focused?>> ] [ blink>> ]
169 [ [ preedit? not ] [ preedit-selection-mode?>> not ] bi or ] } 1&& ;
171 : draw-caret ( editor -- )
173 [ editor-caret-color gl-color ] dip
174 [ caret-loc ] [ caret-dim ] bi
178 :: draw-preedit-underlines ( editor -- )
179 editor [ preedit? ] [ preedit-underlines>> ] bi and [
180 editor [ caret-loc second ] [ caret-dim second ] bi + 2.0 - :> y
181 editor editor-caret first :> row
182 editor font>> foreground>> gl-color
183 editor preedit-underlines>> [
185 dup second glLineWidth
186 first editor preedit-start>> second dup 2array v+ first2
187 [ row swap 2array editor loc>x 1.0 + y 2array ]
188 [ row swap 2array editor loc>x 1.0 - y 2array ]
195 : selection-start/end ( editor -- start end )
196 [ editor-mark ] [ editor-caret ] bi sort-pair ;
198 SYMBOL: selected-lines
200 TUPLE: selected-line start end first? last? ;
202 : compute-selection ( editor -- assoc )
203 dup gadget-selection? [
204 [ selection-start/end [ [ first ] bi@ [a,b] ] [ ] 2bi ]
206 '[ [ _ _ ] [ _ start/end-on-line ] bi 2array ] H{ } map>assoc
209 :: draw-selection ( line pair editor -- )
210 pair [ editor font>> line offset>x ] map :> pair
211 editor selection-color>> gl-color
213 pair second pair first - round 1 max editor line-height 2array
216 : draw-unselected-line ( line editor -- )
217 font>> swap draw-text ;
219 : draw-selected-line ( line pair editor -- )
221 [ nip draw-unselected-line ] [ draw-selection ] 3bi
225 [ [ first2 ] [ selection-color>> ] bi* <selection> ]
226 [ draw-unselected-line ] bi
230 : draw-default-text? ( editor -- ? )
231 { [ default-text>> ] [ model>> doc-string empty? ] } 1&& ;
233 : draw-default-text ( editor -- )
234 [ font>> clone line-color >>foreground ]
235 [ default-text>> ] bi draw-text ;
240 [ selected-lines get at ] dip over
241 [ draw-selected-line ] [ nip draw-unselected-line ] if ;
243 M: editor draw-gadget*
244 dup draw-default-text? [
245 [ draw-default-text ] [ draw-caret ] [ draw-preedit-underlines ] tri
247 dup compute-selection selected-lines [
248 [ draw-lines ] [ draw-caret ] [ draw-preedit-underlines ] tri
253 [ call-next-method ] keep ! at least as big as our min-rows/min-cols
254 ! Add some space for the caret.
255 [ font>> ] keep dup draw-default-text?
256 [ default-text>> ] [ control-value ] if
257 text-dim { 1 0 } v+ vmax ;
259 M: editor baseline font>> font-metrics ascent>> ;
261 M: editor cap-height font>> font-metrics cap-height>> ;
265 : contents-changed ( model editor -- )
266 [ [ nip caret>> ] [ drop ] 2bi '[ _ validate-loc ] (change-model) ]
267 [ [ nip mark>> ] [ drop ] 2bi '[ _ validate-loc ] (change-model) ]
268 [ nip relayout ] 2tri ;
270 : caret/mark-changed ( editor -- )
271 [ restart-blinking ] keep scroll>caret ;
275 M: editor model-changed
277 { [ 2dup model>> eq? ] [ contents-changed ] }
278 { [ 2dup caret>> eq? ] [ nip caret/mark-changed ] }
279 { [ 2dup mark>> eq? ] [ nip caret/mark-changed ] }
282 M: editor gadget-selection?
283 selection-start/end = not ;
285 M: editor gadget-selection
286 [ selection-start/end ] [ model>> ] bi doc-range ;
288 : remove-selection ( editor -- )
289 [ selection-start/end ] [ model>> ] bi remove-doc-range ;
291 M: editor user-input*
292 [ selection-start/end ] [ model>> ] bi set-doc-range t ;
294 M: editor temp-im-input
295 [ selection-start/end ] [ model>> ] bi set-doc-range* t ;
297 : editor-string ( editor -- string )
300 : set-editor-string ( string editor -- )
301 model>> set-doc-string ;
303 M: editor gadget-text* editor-string % ;
305 : extend-selection ( editor -- )
308 [ dup caret>> click-loc ] tri ;
310 : remove-preedit-text ( editor -- )
311 { [ preedit-start>> ] [ set-caret ]
312 [ preedit-end>> ] [ set-mark ]
316 : remove-preedit-info ( editor -- )
319 f >>preedit-selected-start
320 f >>preedit-selected-end
321 f >>preedit-selection-mode?
322 f >>preedit-underlines
325 : mouse-elt ( -- element )
329 } at one-line-elt or ;
331 : drag-direction? ( loc editor -- ? )
332 editor-mark before? ;
334 : drag-selection-caret ( loc editor element -- loc )
336 [ drag-direction? ] [ model>> ] 2bi
337 ] dip prev/next-elt ? ;
339 : drag-selection-mark ( loc editor element -- loc )
341 [ drag-direction? not ]
344 ] dip prev/next-elt ? ;
346 : drag-caret&mark ( editor -- caret mark )
347 [ clicked-loc ] [ mouse-elt ] bi
348 [ drag-selection-caret ]
349 [ drag-selection-mark ] 3bi ;
351 : drag-selection ( editor -- )
354 [ caret>> set-model ] tri ;
356 : editor-cut ( editor clipboard -- )
357 [ gadget-copy ] [ drop remove-selection ] 2bi ;
359 : delete/backspace ( editor quot -- )
360 over gadget-selection? [
361 drop remove-selection
363 [ [ [ editor-caret ] [ model>> ] bi ] dip call ]
368 : editor-delete ( editor elt -- )
369 '[ dupd _ next-elt ] delete/backspace ;
371 : editor-backspace ( editor elt -- )
372 '[ over [ _ prev-elt ] dip ] delete/backspace ;
374 : editor-select-prev ( editor elt -- )
375 '[ _ prev-elt ] change-caret ;
377 : editor-prev ( editor elt -- )
378 [ editor-select-prev ] [ drop mark>caret ] 2bi ;
380 : editor-select-next ( editor elt -- )
381 '[ _ next-elt ] change-caret ;
383 : editor-next ( editor elt -- )
384 dupd editor-select-next mark>caret ;
386 : editor-select ( from to editor -- )
387 [ mark>> set-model ] [ caret>> set-model ] bi-curry bi* ;
389 : select-elt ( editor elt -- )
390 [ [ [ editor-caret ] [ model>> ] bi ] dip prev/next-elt ] [ drop ] 2bi
393 : start-of-document ( editor -- ) doc-elt editor-prev ;
395 : end-of-document ( editor -- ) doc-elt editor-next ;
397 : position-caret ( editor -- )
398 mouse-elt dup one-char-elt =
399 [ drop dup extend-selection dup mark>> click-loc ]
402 : delete-previous-character ( editor -- )
403 char-elt editor-backspace ;
405 : delete-next-character ( editor -- )
406 char-elt editor-delete ;
408 : delete-previous-word ( editor -- )
409 word-elt editor-backspace ;
411 : delete-next-word ( editor -- )
412 word-elt editor-delete ;
414 : delete-to-start-of-line ( editor -- )
415 one-line-elt editor-backspace ;
417 : delete-to-end-of-line ( editor -- )
418 one-line-elt editor-delete ;
420 : delete-to-start-of-document ( editor -- )
421 doc-elt editor-delete ;
423 : delete-to-end-of-document ( editor -- )
424 doc-elt editor-delete ;
426 : com-undo ( editor -- ) model>> undo ;
428 : com-redo ( editor -- ) model>> redo ;
431 { undo-action com-undo }
432 { redo-action com-redo }
433 { T{ key-down f f "DELETE" } delete-next-character }
434 { T{ key-down f f "BACKSPACE" } delete-previous-character }
435 { T{ key-down f { S+ } "BACKSPACE" } delete-previous-character }
436 { T{ key-down f { C+ } "DELETE" } delete-next-word }
437 { T{ key-down f { C+ } "BACKSPACE" } delete-previous-word }
438 { T{ key-down f { A+ } "DELETE" } delete-to-end-of-line }
439 { T{ key-down f { A+ } "BACKSPACE" } delete-to-start-of-line }
441 { T{ key-down f { C+ } "d" } delete-next-character }
442 { T{ key-down f { C+ } "h" } delete-previous-character }
443 { T{ key-down f { C+ } "u" } delete-to-start-of-line }
444 { T{ key-down f { C+ } "k" } delete-to-end-of-line }
445 { T{ key-down f { C+ } "w" } delete-previous-word }
446 } append ] when define-command-map
448 : com-paste ( editor -- ) clipboard get paste-clipboard ;
450 : paste-selection ( editor -- ) ui.clipboards:selection get paste-clipboard ;
452 : com-cut ( editor -- ) clipboard get editor-cut ;
454 editor "clipboard" f {
455 { cut-action com-cut }
456 { copy-action com-copy }
457 { paste-action com-paste }
458 { T{ button-up } com-copy-selection }
459 { T{ button-up f f 2 } paste-selection }
462 : previous-character ( editor -- )
463 dup gadget-selection? [
464 dup selection-start/end drop
465 over set-caret mark>caret
470 : next-character ( editor -- )
471 dup gadget-selection? [
472 dup selection-start/end nip
473 over set-caret mark>caret
478 : previous-word ( editor -- ) word-elt editor-prev ;
480 : next-word ( editor -- ) word-elt editor-next ;
482 : start-of-line ( editor -- ) one-line-elt editor-prev ;
484 : end-of-line ( editor -- ) one-line-elt editor-next ;
486 editor "caret-motion" f {
487 { T{ button-down } position-caret }
488 { T{ key-down f f "LEFT" } previous-character }
489 { T{ key-down f f "RIGHT" } next-character }
490 { T{ key-down f { C+ } "LEFT" } previous-word }
491 { T{ key-down f { C+ } "RIGHT" } next-word }
492 { T{ key-down f f "HOME" } start-of-line }
493 { T{ key-down f f "END" } end-of-line }
494 { T{ key-down f { C+ } "HOME" } start-of-document }
495 { T{ key-down f { C+ } "END" } end-of-document }
497 { T{ key-down f { C+ } "b" } previous-character }
498 { T{ key-down f { C+ } "f" } next-character }
499 { T{ key-down f { C+ } "a" } start-of-line }
500 { T{ key-down f { C+ } "e" } end-of-line }
501 } append ] when define-command-map
503 : clear-editor ( editor -- )
506 : select-all ( editor -- ) doc-elt select-elt ;
508 : select-line ( editor -- ) one-line-elt select-elt ;
510 : select-word ( editor -- ) one-word-elt select-elt ;
512 : selected-token ( editor -- string )
513 dup gadget-selection?
514 [ dup select-word ] unless
517 : select-previous-character ( editor -- )
518 char-elt editor-select-prev ;
520 : select-next-character ( editor -- )
521 char-elt editor-select-next ;
523 : select-previous-word ( editor -- )
524 word-elt editor-select-prev ;
526 : select-next-word ( editor -- )
527 word-elt editor-select-next ;
529 : select-start-of-line ( editor -- )
530 one-line-elt editor-select-prev ;
532 : select-end-of-line ( editor -- )
533 one-line-elt editor-select-next ;
535 : select-start-of-document ( editor -- )
536 doc-elt editor-select-prev ;
538 : select-end-of-document ( editor -- )
539 doc-elt editor-select-next ;
541 editor "selection" f {
542 { T{ button-down f { S+ } 1 } extend-selection }
543 { T{ button-up f { S+ } 1 } com-copy-selection }
544 { T{ drag { # 1 } } drag-selection }
545 { gain-focus focus-editor }
546 { lose-focus unfocus-editor }
547 { delete-action remove-selection }
548 { select-all-action select-all }
549 { T{ key-down f { C+ } "l" } select-line }
550 { T{ key-down f { S+ } "LEFT" } select-previous-character }
551 { T{ key-down f { S+ } "RIGHT" } select-next-character }
552 { T{ key-down f { S+ C+ } "LEFT" } select-previous-word }
553 { T{ key-down f { S+ C+ } "RIGHT" } select-next-word }
554 { T{ key-down f { S+ } "HOME" } select-start-of-line }
555 { T{ key-down f { S+ } "END" } select-end-of-line }
556 { T{ key-down f { S+ C+ } "HOME" } select-start-of-document }
557 { T{ key-down f { S+ C+ } "END" } select-end-of-document }
560 : editor-menu ( editor -- )
568 } show-commands-menu ;
571 ! { T{ button-down f f 2 } paste-selection }
572 { T{ button-down f f 3 } editor-menu }
576 TUPLE: multiline-editor < editor ;
578 : <multiline-editor> ( -- editor )
579 multiline-editor new-editor ;
581 : previous-line ( editor -- ) line-elt editor-prev ;
583 : next-line ( editor -- ) line-elt editor-next ;
587 : page-elt ( editor n -- editor element )
588 over visible-lines 1 - min 1 max <page-elt> ;
590 : prev-page-elt ( editor -- editor element )
591 dup editor-caret first page-elt ;
593 : next-page-elt ( editor -- editor element )
594 dup [ control-value length 1 - ] [ editor-caret first ] bi - page-elt ;
598 : previous-page ( editor -- ) prev-page-elt editor-prev ;
600 : next-page ( editor -- ) next-page-elt editor-next ;
602 : select-previous-line ( editor -- ) line-elt editor-select-prev ;
604 : select-next-line ( editor -- ) line-elt editor-select-next ;
606 : select-previous-page ( editor -- ) prev-page-elt editor-select-prev ;
608 : select-next-page ( editor -- ) next-page-elt editor-select-next ;
610 : insert-newline ( editor -- )
611 "\n" swap user-input* drop ;
613 : change-selection ( editor quot -- )
614 '[ gadget-selection @ ] [ user-input* drop ] bi ; inline
618 : join-lines ( string -- string' )
620 [ rest-slice [ [ blank? ] trim-head-slice ] map! drop ]
621 [ but-last-slice [ [ blank? ] trim-tail-slice ] map! drop ]
625 : last-line? ( document line -- ? )
626 [ last-line# ] dip = ;
628 : prev-line-and-this ( document line -- start end )
629 swap [ drop 1 - 0 2array ] [ line-end ] 2bi ;
631 : join-with-prev ( document line -- )
632 [ prev-line-and-this ] [ drop ] 2bi
633 [ join-lines ] change-doc-range ;
635 : this-line-and-next ( document line -- start end )
636 swap [ drop 0 2array ] [ [ 1 + ] dip line-end ] 2bi ;
638 : join-with-next ( document line -- )
639 [ this-line-and-next ] [ drop ] 2bi
640 [ join-lines ] change-doc-range ;
644 : com-join-lines ( editor -- )
645 dup gadget-selection?
646 [ [ join-lines ] change-selection ] [
647 [ model>> ] [ editor-caret first ] bi {
648 { [ over last-line# 0 = ] [ 2drop ] }
649 { [ 2dup last-line? ] [ join-with-prev ] }
654 multiline-editor "multiline" f {
655 { T{ key-down f f "UP" } previous-line }
656 { T{ key-down f f "DOWN" } next-line }
657 { T{ key-down f { S+ } "UP" } select-previous-line }
658 { T{ key-down f { S+ } "DOWN" } select-next-line }
659 { T{ key-down f f "PAGE_UP" } previous-page }
660 { T{ key-down f f "PAGE_DOWN" } next-page }
661 { T{ key-down f { S+ } "PAGE_UP" } select-previous-page }
662 { T{ key-down f { S+ } "PAGE_DOWN" } select-next-page }
663 { T{ key-down f f "RET" } insert-newline }
664 { T{ key-down f { S+ } "RET" } insert-newline }
665 { T{ key-down f f "ENTER" } insert-newline }
666 { T{ key-down f { C+ } "j" } com-join-lines }
668 { T{ key-down f { C+ } "p" } previous-line }
669 { T{ key-down f { C+ } "n" } next-line }
670 } append ] when define-command-map
672 TUPLE: source-editor < multiline-editor ;
674 : <source-editor> ( -- editor )
675 source-editor new-editor ;
678 : <element-model> ( editor element -- model )
679 [ [ caret>> ] [ model>> ] bi ] dip
680 '[ _ _ elt-string ] <arrow> ;
682 ! Fields wrap an editor
683 TUPLE: field < border editor min-cols max-cols ;
687 : field-theme ( gadget -- gadget )
690 field-border-color <solid> >>boundary ; inline
692 : <field-border> ( gadget -- border )
693 border new-border field-theme ;
697 : new-field ( class -- gadget )
698 [ <editor> ] dip new-border
699 dup gadget-child >>editor
702 ! For line-gadget-width
703 M: field font>> editor>> font>> ;
707 [ editor>> pref-dim ]
708 [ [ line-gadget-width ] [ drop second ] 2bi 2array ]
709 tri border-pref-dim ;
711 M: field default-text>> editor>> default-text>> ;
713 M: field default-text<< editor>> default-text<< ;
715 TUPLE: model-field < field field-model ;
717 : <model-field> ( model -- gadget )
718 model-field new-field
721 M: model-field graft*
722 [ [ field-model>> value>> ] [ editor>> ] bi set-editor-string ]
723 [ dup editor>> model>> add-connection ]
726 M: model-field ungraft*
727 dup editor>> model>> remove-connection ;
729 M: model-field model-changed
730 nip [ editor>> editor-string ] [ field-model>> ] bi set-model ;
732 TUPLE: action-field < field quot ;
734 : <action-field> ( quot: ( string -- ) -- gadget )
735 action-field [ <editor> ] dip new-border
736 dup gadget-child >>editor
740 : invoke-action-field ( field -- )
741 [ editor>> editor-string ]
742 [ editor>> clear-editor ]
744 tri call( string -- ) ;
747 { T{ key-down f f "RET" } [ invoke-action-field ] }