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 combinators
4 combinators.short-circuit documents documents.elements fonts fry
5 grouping kernel locals make math math.functions math.order math.ranges
6 math.rectangles math.vectors models models.arrow namespaces opengl
7 sequences sorting splitting timers ui.baseline-alignment ui.clipboards
8 ui.commands ui.gadgets ui.gadgets.borders ui.gadgets.line-support
9 ui.gadgets.menus ui.gadgets.scrollers ui.gestures ui.pens.solid
10 ui.render ui.text ui.theme unicode opengl.gl ;
11 IN: ui.gadgets.editors
13 TUPLE: editor < line-gadget
15 focused? blink blink-timer
19 preedit-selected-start
21 preedit-selection-mode?
24 GENERIC: preedit? ( gadget -- ? )
26 M: gadget preedit? drop f ;
28 M: editor preedit? preedit-start>> [ t ] [ f ] if ;
32 : <loc> ( -- loc ) { 0 0 } <model> ;
34 : init-editor-locs ( editor -- editor )
38 : editor-theme ( editor -- editor )
39 monospace-font >>font ; inline
43 : new-editor ( class -- editor )
49 : <editor> ( -- editor )
54 : activate-editor-model ( editor model -- )
56 [ nip activate-model ]
57 [ swap model>> add-loc ] 2tri ;
59 : deactivate-editor-model ( editor model -- )
61 [ nip deactivate-model ]
62 [ swap model>> remove-loc ] 2tri ;
64 : blink-caret ( editor -- )
65 [ not ] change-blink relayout-1 ;
67 SYMBOL: blink-interval
69 750 milliseconds blink-interval set-global
71 : stop-blinking ( editor -- )
72 blink-timer>> [ stop-timer ] when* ;
74 : start-blinking ( editor -- )
76 blink-timer>> [ restart-timer ] when* ;
78 : restart-blinking ( editor -- )
88 [ dup caret>> activate-editor-model ]
89 [ dup mark>> activate-editor-model ]
92 '[ _ blink-caret ] blink-interval get dup <timer>
97 [ [ stop-blinking ] [ f >>blink-timer drop ] bi ]
98 [ dup caret>> deactivate-editor-model ]
99 [ dup mark>> deactivate-editor-model ] tri ;
101 : editor-caret ( editor -- loc ) caret>> value>> ;
103 : editor-mark ( editor -- loc ) mark>> value>> ;
105 : set-caret ( loc editor -- )
106 [ model>> validate-loc ] [ caret>> ] bi set-model ;
108 : set-mark ( loc editor -- )
109 [ model>> validate-loc ] [ mark>> ] bi set-model ;
111 : change-caret ( editor quot: ( loc document -- newloc ) -- )
112 [ [ [ editor-caret ] [ model>> ] bi ] dip call ] [ drop ] 2bi
115 : mark>caret ( editor -- )
116 [ editor-caret ] [ mark>> ] bi set-model ;
118 : change-caret&mark ( editor quot: ( loc document -- newloc ) -- )
119 [ change-caret ] [ drop mark>caret ] 2bi ; inline
121 : editor-line ( n editor -- str ) control-value nth ;
123 :: point>loc ( point editor -- loc )
124 point second editor y>line {
125 { [ dup 0 < ] [ drop { 0 0 } ] }
126 { [ dup editor model>> last-line# > ] [ drop editor model>> doc-end ] }
136 : clicked-loc ( editor -- loc )
137 [ hand-rel ] keep point>loc ;
139 : click-loc ( editor model -- )
140 [ clicked-loc ] dip set-model ;
142 : focus-editor ( editor -- )
143 [ start-blinking ] [ t >>focused? relayout-1 ] bi ;
145 : unfocus-editor ( editor -- )
146 [ stop-blinking ] [ f >>focused? relayout-1 ] bi ;
148 : loc>x ( loc editor -- x )
149 [ first2 swap ] dip [ editor-line ] [ font>> ] bi swap offset>x round ;
151 : loc>point ( loc editor -- loc )
152 [ loc>x ] [ [ first ] dip line>y ceiling ] 2bi 2array ;
154 : caret-loc ( editor -- loc )
155 [ editor-caret ] keep loc>point ;
157 : caret-dim ( editor -- dim )
158 [ 0 ] dip line-height 2array ;
160 : scroll>caret ( editor -- )
161 dup graft-state>> second [
163 [ caret-loc ] [ caret-dim { 2 1 } v+ ] bi <rect>
169 : draw-caret? ( editor -- ? )
170 { [ focused?>> ] [ blink>> ]
171 [ [ preedit? not ] [ preedit-selection-mode?>> not ] bi or ] } 1&& ;
173 : draw-caret ( editor -- )
175 [ editor-caret-color gl-color ] dip
176 [ caret-loc ] [ caret-dim ] bi
180 :: draw-preedit-underlines ( editor -- )
181 editor [ preedit? ] [ preedit-underlines>> ] bi and [
182 editor [ caret-loc second ] [ caret-dim second ] bi + 2.0 - :> y
183 editor editor-caret first :> row
184 editor font>> foreground>> gl-color
185 editor preedit-underlines>> [
187 dup second glLineWidth
188 first editor preedit-start>> second dup 2array v+ first2
189 [ row swap 2array editor loc>x 1.0 + y 2array ]
190 [ row swap 2array editor loc>x 1.0 - y 2array ]
197 : selection-start/end ( editor -- start end )
198 [ editor-mark ] [ editor-caret ] bi sort-pair ;
200 SYMBOL: selected-lines
202 TUPLE: selected-line start end first? last? ;
204 : compute-selection ( editor -- assoc )
205 dup gadget-selection? [
206 [ selection-start/end [ [ first ] bi@ [a,b] ] [ ] 2bi ]
208 '[ [ _ _ ] [ _ start/end-on-line ] bi 2array ] H{ } map>assoc
211 :: draw-selection ( line pair editor -- )
212 pair [ editor font>> line offset>x ] map :> pair
213 editor selection-color>> gl-color
215 pair second pair first - round 1 max editor line-height 2array
218 : draw-unselected-line ( line editor -- )
219 font>> swap draw-text ;
221 : draw-selected-line ( line pair editor -- )
223 [ nip draw-unselected-line ] [ draw-selection ] 3bi
227 [ [ first2 ] [ selection-color>> ] bi* <selection> ]
228 [ draw-unselected-line ] bi
232 : draw-default-text? ( editor -- ? )
233 { [ default-text>> ] [ model>> doc-string empty? ] } 1&& ;
235 : draw-default-text ( editor -- )
236 [ font>> clone line-color >>foreground ]
237 [ default-text>> ] bi draw-text ;
241 M: editor draw-line ( line index editor -- )
242 [ selected-lines get at ] dip over
243 [ draw-selected-line ] [ nip draw-unselected-line ] if ;
245 M: editor draw-gadget*
246 dup draw-default-text? [
247 [ draw-default-text ] [ draw-caret ] [ draw-preedit-underlines ] tri
249 dup compute-selection selected-lines [
250 [ draw-lines ] [ draw-caret ] [ draw-preedit-underlines ] tri
255 ! Add some space for the caret.
256 [ font>> ] keep dup draw-default-text?
257 [ default-text>> ] [ control-value ] if
258 text-dim { 1 0 } v+ ;
260 M: editor baseline font>> font-metrics ascent>> ;
262 M: editor cap-height font>> font-metrics cap-height>> ;
266 : contents-changed ( model editor -- )
267 [ [ nip caret>> ] [ drop ] 2bi '[ _ validate-loc ] (change-model) ]
268 [ [ nip mark>> ] [ drop ] 2bi '[ _ validate-loc ] (change-model) ]
269 [ nip relayout ] 2tri ;
271 : caret/mark-changed ( editor -- )
272 [ restart-blinking ] keep scroll>caret ;
276 M: editor model-changed
278 { [ 2dup model>> eq? ] [ contents-changed ] }
279 { [ 2dup caret>> eq? ] [ nip caret/mark-changed ] }
280 { [ 2dup mark>> eq? ] [ nip caret/mark-changed ] }
283 M: editor gadget-selection?
284 selection-start/end = not ;
286 M: editor gadget-selection
287 [ selection-start/end ] [ model>> ] bi doc-range ;
289 : remove-selection ( editor -- )
290 [ selection-start/end ] [ model>> ] bi remove-doc-range ;
292 M: editor user-input*
293 [ selection-start/end ] [ model>> ] bi set-doc-range t ;
295 M: editor temp-im-input
296 [ selection-start/end ] [ model>> ] bi set-doc-range* t ;
298 : editor-string ( editor -- string )
301 : set-editor-string ( string editor -- )
302 model>> set-doc-string ;
304 M: editor gadget-text* editor-string % ;
306 : extend-selection ( editor -- )
309 [ dup caret>> click-loc ] tri ;
311 : remove-preedit-text ( editor -- )
312 { [ preedit-start>> ] [ set-caret ]
313 [ preedit-end>> ] [ set-mark ]
317 : remove-preedit-info ( editor -- )
320 f >>preedit-selected-start
321 f >>preedit-selected-end
322 f >>preedit-selection-mode?
323 f >>preedit-underlines
326 : mouse-elt ( -- element )
330 } at one-line-elt or ;
332 : drag-direction? ( loc editor -- ? )
333 editor-mark before? ;
335 : drag-selection-caret ( loc editor element -- loc )
337 [ drag-direction? ] [ model>> ] 2bi
338 ] dip prev/next-elt ? ;
340 : drag-selection-mark ( loc editor element -- loc )
342 [ drag-direction? not ]
345 ] dip prev/next-elt ? ;
347 : drag-caret&mark ( editor -- caret mark )
348 [ clicked-loc ] [ mouse-elt ] bi
349 [ drag-selection-caret ]
350 [ drag-selection-mark ] 3bi ;
352 : drag-selection ( editor -- )
355 [ caret>> set-model ] tri ;
357 : editor-cut ( editor clipboard -- )
358 [ gadget-copy ] [ drop remove-selection ] 2bi ;
360 : delete/backspace ( editor quot -- )
361 over gadget-selection? [
362 drop remove-selection
364 [ [ [ editor-caret ] [ model>> ] bi ] dip call ]
369 : editor-delete ( editor elt -- )
370 '[ dupd _ next-elt ] delete/backspace ;
372 : editor-backspace ( editor elt -- )
373 '[ over [ _ prev-elt ] dip ] delete/backspace ;
375 : editor-select-prev ( editor elt -- )
376 '[ _ prev-elt ] change-caret ;
378 : editor-prev ( editor elt -- )
379 [ editor-select-prev ] [ drop mark>caret ] 2bi ;
381 : editor-select-next ( editor elt -- )
382 '[ _ next-elt ] change-caret ;
384 : editor-next ( editor elt -- )
385 dupd editor-select-next mark>caret ;
387 : editor-select ( from to editor -- )
388 [ mark>> set-model ] [ caret>> set-model ] bi-curry bi* ;
390 : select-elt ( editor elt -- )
391 [ [ [ editor-caret ] [ model>> ] bi ] dip prev/next-elt ] [ drop ] 2bi
394 : start-of-document ( editor -- ) doc-elt editor-prev ;
396 : end-of-document ( editor -- ) doc-elt editor-next ;
398 : position-caret ( editor -- )
399 mouse-elt dup one-char-elt =
400 [ drop dup extend-selection dup mark>> click-loc ]
403 : delete-previous-character ( editor -- )
404 char-elt editor-backspace ;
406 : delete-next-character ( editor -- )
407 char-elt editor-delete ;
409 : delete-previous-word ( editor -- )
410 word-elt editor-backspace ;
412 : delete-next-word ( editor -- )
413 word-elt editor-delete ;
415 : delete-to-start-of-line ( editor -- )
416 one-line-elt editor-backspace ;
418 : delete-to-end-of-line ( editor -- )
419 one-line-elt editor-delete ;
421 : delete-to-start-of-document ( editor -- )
422 doc-elt editor-delete ;
424 : delete-to-end-of-document ( editor -- )
425 doc-elt editor-delete ;
427 : com-undo ( editor -- ) model>> undo ;
429 : com-redo ( editor -- ) model>> redo ;
432 { undo-action com-undo }
433 { redo-action com-redo }
434 { T{ key-down f f "DELETE" } delete-next-character }
435 { T{ key-down f f "BACKSPACE" } delete-previous-character }
436 { T{ key-down f { S+ } "BACKSPACE" } delete-previous-character }
437 { T{ key-down f { C+ } "DELETE" } delete-next-word }
438 { T{ key-down f { C+ } "BACKSPACE" } delete-previous-word }
439 { T{ key-down f { A+ } "DELETE" } delete-to-end-of-line }
440 { T{ key-down f { A+ } "BACKSPACE" } delete-to-start-of-line }
443 : com-paste ( editor -- ) clipboard get paste-clipboard ;
445 : paste-selection ( editor -- ) ui.clipboards:selection get paste-clipboard ;
447 : com-cut ( editor -- ) clipboard get editor-cut ;
449 editor "clipboard" f {
450 { cut-action com-cut }
451 { copy-action com-copy }
452 { paste-action com-paste }
453 { T{ button-up } com-copy-selection }
454 { T{ button-up f f 2 } paste-selection }
457 : previous-character ( editor -- )
458 dup gadget-selection? [
459 dup selection-start/end drop
460 over set-caret mark>caret
465 : next-character ( editor -- )
466 dup gadget-selection? [
467 dup selection-start/end nip
468 over set-caret mark>caret
473 : previous-word ( editor -- ) word-elt editor-prev ;
475 : next-word ( editor -- ) word-elt editor-next ;
477 : start-of-line ( editor -- ) one-line-elt editor-prev ;
479 : end-of-line ( editor -- ) one-line-elt editor-next ;
481 editor "caret-motion" f {
482 { T{ button-down } position-caret }
483 { T{ key-down f f "LEFT" } previous-character }
484 { T{ key-down f f "RIGHT" } next-character }
485 { T{ key-down f { C+ } "LEFT" } previous-word }
486 { T{ key-down f { C+ } "RIGHT" } next-word }
487 { T{ key-down f f "HOME" } start-of-line }
488 { T{ key-down f f "END" } end-of-line }
489 { T{ key-down f { C+ } "HOME" } start-of-document }
490 { T{ key-down f { C+ } "END" } end-of-document }
493 : clear-editor ( editor -- )
496 : select-all ( editor -- ) doc-elt select-elt ;
498 : select-line ( editor -- ) one-line-elt select-elt ;
500 : select-word ( editor -- ) one-word-elt select-elt ;
502 : selected-token ( editor -- string )
503 dup gadget-selection?
504 [ dup select-word ] unless
507 : select-previous-character ( editor -- )
508 char-elt editor-select-prev ;
510 : select-next-character ( editor -- )
511 char-elt editor-select-next ;
513 : select-previous-word ( editor -- )
514 word-elt editor-select-prev ;
516 : select-next-word ( editor -- )
517 word-elt editor-select-next ;
519 : select-start-of-line ( editor -- )
520 one-line-elt editor-select-prev ;
522 : select-end-of-line ( editor -- )
523 one-line-elt editor-select-next ;
525 : select-start-of-document ( editor -- )
526 doc-elt editor-select-prev ;
528 : select-end-of-document ( editor -- )
529 doc-elt editor-select-next ;
531 editor "selection" f {
532 { T{ button-down f { S+ } 1 } extend-selection }
533 { T{ button-up f { S+ } 1 } com-copy-selection }
534 { T{ drag { # 1 } } drag-selection }
535 { gain-focus focus-editor }
536 { lose-focus unfocus-editor }
537 { delete-action remove-selection }
538 { select-all-action select-all }
539 { T{ key-down f { C+ } "l" } select-line }
540 { T{ key-down f { S+ } "LEFT" } select-previous-character }
541 { T{ key-down f { S+ } "RIGHT" } select-next-character }
542 { T{ key-down f { S+ C+ } "LEFT" } select-previous-word }
543 { T{ key-down f { S+ C+ } "RIGHT" } select-next-word }
544 { T{ key-down f { S+ } "HOME" } select-start-of-line }
545 { T{ key-down f { S+ } "END" } select-end-of-line }
546 { T{ key-down f { S+ C+ } "HOME" } select-start-of-document }
547 { T{ key-down f { S+ C+ } "END" } select-end-of-document }
550 : editor-menu ( editor -- )
558 } show-commands-menu ;
561 ! { T{ button-down f f 2 } paste-selection }
562 { T{ button-down f f 3 } editor-menu }
566 TUPLE: multiline-editor < editor ;
568 : <multiline-editor> ( -- editor )
569 multiline-editor new-editor ;
571 : previous-line ( editor -- ) line-elt editor-prev ;
573 : next-line ( editor -- ) line-elt editor-next ;
577 : page-elt ( editor -- editor element ) dup visible-lines 1 - <page-elt> ;
581 : previous-page ( editor -- ) page-elt editor-prev ;
583 : next-page ( editor -- ) page-elt editor-next ;
585 : select-previous-line ( editor -- ) line-elt editor-select-prev ;
587 : select-next-line ( editor -- ) line-elt editor-select-next ;
589 : select-previous-page ( editor -- ) page-elt editor-select-prev ;
591 : select-next-page ( editor -- ) page-elt editor-select-next ;
593 : insert-newline ( editor -- )
594 "\n" swap user-input* drop ;
596 : change-selection ( editor quot -- )
597 '[ gadget-selection @ ] [ user-input* drop ] bi ; inline
601 : join-lines ( string -- string' )
603 [ rest-slice [ [ blank? ] trim-head-slice ] map! drop ]
604 [ but-last-slice [ [ blank? ] trim-tail-slice ] map! drop ]
608 : last-line? ( document line -- ? )
609 [ last-line# ] dip = ;
611 : prev-line-and-this ( document line -- start end )
612 swap [ drop 1 - 0 2array ] [ line-end ] 2bi ;
614 : join-with-prev ( document line -- )
615 [ prev-line-and-this ] [ drop ] 2bi
616 [ join-lines ] change-doc-range ;
618 : this-line-and-next ( document line -- start end )
619 swap [ drop 0 2array ] [ [ 1 + ] dip line-end ] 2bi ;
621 : join-with-next ( document line -- )
622 [ this-line-and-next ] [ drop ] 2bi
623 [ join-lines ] change-doc-range ;
627 : com-join-lines ( editor -- )
628 dup gadget-selection?
629 [ [ join-lines ] change-selection ] [
630 [ model>> ] [ editor-caret first ] bi {
631 { [ over last-line# 0 = ] [ 2drop ] }
632 { [ 2dup last-line? ] [ join-with-prev ] }
637 multiline-editor "multiline" f {
638 { T{ key-down f f "UP" } previous-line }
639 { T{ key-down f f "DOWN" } next-line }
640 { T{ key-down f { S+ } "UP" } select-previous-line }
641 { T{ key-down f { S+ } "DOWN" } select-next-line }
642 { T{ key-down f f "PAGE_UP" } previous-page }
643 { T{ key-down f f "PAGE_DOWN" } next-page }
644 { T{ key-down f { S+ } "PAGE_UP" } select-previous-page }
645 { T{ key-down f { S+ } "PAGE_DOWN" } select-next-page }
646 { T{ key-down f f "RET" } insert-newline }
647 { T{ key-down f { S+ } "RET" } insert-newline }
648 { T{ key-down f f "ENTER" } insert-newline }
649 { T{ key-down f { C+ } "j" } com-join-lines }
652 TUPLE: source-editor < multiline-editor ;
654 : <source-editor> ( -- editor )
655 source-editor new-editor ;
658 : <element-model> ( editor element -- model )
659 [ [ caret>> ] [ model>> ] bi ] dip
660 '[ _ _ elt-string ] <arrow> ;
662 ! Fields wrap an editor
663 TUPLE: field < border editor min-cols max-cols ;
667 : field-theme ( gadget -- gadget )
670 field-border-color <solid> >>boundary ; inline
672 : <field-border> ( gadget -- border )
673 border new-border field-theme ;
677 : new-field ( class -- gadget )
678 [ <editor> ] dip new-border
679 dup gadget-child >>editor
682 ! For line-gadget-width
683 M: field font>> editor>> font>> ;
687 [ editor>> pref-dim ]
688 [ [ line-gadget-width ] [ drop second ] 2bi 2array ]
689 tri border-pref-dim ;
691 M: field default-text>> editor>> default-text>> ;
693 M: field default-text<< editor>> default-text<< ;
695 TUPLE: model-field < field field-model ;
697 : <model-field> ( model -- gadget )
698 model-field new-field
701 M: model-field graft*
702 [ [ field-model>> value>> ] [ editor>> ] bi set-editor-string ]
703 [ dup editor>> model>> add-connection ]
706 M: model-field ungraft*
707 dup editor>> model>> remove-connection ;
709 M: model-field model-changed
710 nip [ editor>> editor-string ] [ field-model>> ] bi set-model ;
712 TUPLE: action-field < field quot ;
714 : <action-field> ( quot: ( string -- ) -- gadget )
715 action-field [ <editor> ] dip new-border
716 dup gadget-child >>editor
720 : invoke-action-field ( field -- )
721 [ editor>> editor-string ]
722 [ editor>> clear-editor ]
724 tri call( string -- ) ;
727 { T{ key-down f f "RET" } [ invoke-action-field ] }