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 ;
11 IN: ui.gadgets.editors
13 TUPLE: editor < line-gadget
16 focused? blink blink-timer
21 : <loc> ( -- loc ) { 0 0 } <model> ;
23 : init-editor-locs ( editor -- editor )
27 : editor-theme ( editor -- editor )
28 monospace-font >>font ; inline
32 : new-editor ( class -- editor )
38 : <editor> ( -- editor )
43 : activate-editor-model ( editor model -- )
45 [ nip activate-model ]
46 [ swap model>> add-loc ] 2tri ;
48 : deactivate-editor-model ( editor model -- )
50 [ nip deactivate-model ]
51 [ swap model>> remove-loc ] 2tri ;
53 : blink-caret ( editor -- )
54 [ not ] change-blink relayout-1 ;
56 SYMBOL: blink-interval
58 750 milliseconds blink-interval set-global
60 : stop-blinking ( editor -- )
61 blink-timer>> [ stop-timer ] when* ;
63 : start-blinking ( editor -- )
65 blink-timer>> [ restart-timer ] when* ;
67 : restart-blinking ( editor -- )
77 [ dup caret>> activate-editor-model ]
78 [ dup mark>> activate-editor-model ]
81 '[ _ blink-caret ] blink-interval get dup <timer>
86 [ [ stop-blinking ] [ f >>blink-timer drop ] bi ]
87 [ dup caret>> deactivate-editor-model ]
88 [ dup mark>> deactivate-editor-model ] tri ;
90 : editor-caret ( editor -- loc ) caret>> value>> ;
92 : editor-mark ( editor -- loc ) mark>> value>> ;
94 : set-caret ( loc editor -- )
95 [ model>> validate-loc ] [ caret>> ] bi set-model ;
97 : change-caret ( editor quot: ( loc document -- newloc ) -- )
98 [ [ [ editor-caret ] [ model>> ] bi ] dip call ] [ drop ] 2bi
101 : mark>caret ( editor -- )
102 [ editor-caret ] [ mark>> ] bi set-model ;
104 : change-caret&mark ( editor quot: ( loc document -- newloc ) -- )
105 [ change-caret ] [ drop mark>caret ] 2bi ; inline
107 : editor-line ( n editor -- str ) control-value nth ;
109 :: point>loc ( point editor -- loc )
110 point second editor y>line {
111 { [ dup 0 < ] [ drop { 0 0 } ] }
112 { [ dup editor model>> last-line# > ] [ drop editor model>> doc-end ] }
122 : clicked-loc ( editor -- loc )
123 [ hand-rel ] keep point>loc ;
125 : click-loc ( editor model -- )
126 [ clicked-loc ] dip set-model ;
128 : focus-editor ( editor -- )
129 [ start-blinking ] [ t >>focused? relayout-1 ] bi ;
131 : unfocus-editor ( editor -- )
132 [ stop-blinking ] [ f >>focused? relayout-1 ] bi ;
134 : loc>x ( loc editor -- x )
135 [ first2 swap ] dip [ editor-line ] [ font>> ] bi swap offset>x round ;
137 : loc>point ( loc editor -- loc )
138 [ loc>x ] [ [ first ] dip line>y ceiling ] 2bi 2array ;
140 : caret-loc ( editor -- loc )
141 [ editor-caret ] keep loc>point ;
143 : caret-dim ( editor -- dim )
144 [ 0 ] dip line-height 2array ;
146 : scroll>caret ( editor -- )
147 dup graft-state>> second [
149 [ caret-loc ] [ caret-dim { 2 1 } v+ ] bi <rect>
155 : draw-caret? ( editor -- ? )
156 { [ focused?>> ] [ blink>> ] } 1&& ;
158 : draw-caret ( editor -- )
160 [ editor-caret-color gl-color ] dip
161 [ caret-loc ] [ caret-dim ] bi
165 : selection-start/end ( editor -- start end )
166 [ editor-mark ] [ editor-caret ] bi sort-pair ;
168 SYMBOL: selected-lines
170 TUPLE: selected-line start end first? last? ;
172 : compute-selection ( editor -- assoc )
173 dup gadget-selection? [
174 [ selection-start/end [ [ first ] bi@ [a,b] ] [ ] 2bi ]
176 '[ [ _ _ ] [ _ start/end-on-line ] bi 2array ] H{ } map>assoc
179 :: draw-selection ( line pair editor -- )
180 pair [ editor font>> line offset>x ] map :> pair
181 editor selection-color>> gl-color
183 pair second pair first - round 1 max editor line-height 2array
186 : draw-unselected-line ( line editor -- )
187 font>> swap draw-text ;
189 : draw-selected-line ( line pair editor -- )
191 [ nip draw-unselected-line ] [ draw-selection ] 3bi
195 [ [ first2 ] [ selection-color>> ] bi* <selection> ]
196 [ draw-unselected-line ] bi
200 : draw-default-text? ( editor -- ? )
201 { [ default-text>> ] [ model>> doc-string empty? ] } 1&& ;
203 : draw-default-text ( editor -- )
204 [ font>> clone line-color >>foreground ]
205 [ default-text>> ] bi draw-text ;
209 M: editor draw-line ( line index editor -- )
210 [ selected-lines get at ] dip over
211 [ draw-selected-line ] [ nip draw-unselected-line ] if ;
213 M: editor draw-gadget*
214 dup draw-default-text? [
215 [ draw-default-text ] [ draw-caret ] bi
217 dup compute-selection selected-lines [
218 [ draw-lines ] [ draw-caret ] bi
223 ! Add some space for the caret.
224 [ font>> ] keep dup draw-default-text?
225 [ default-text>> ] [ control-value ] if
226 text-dim { 1 0 } v+ ;
228 M: editor baseline font>> font-metrics ascent>> ;
230 M: editor cap-height font>> font-metrics cap-height>> ;
234 : contents-changed ( model editor -- )
235 [ [ nip caret>> ] [ drop ] 2bi '[ _ validate-loc ] (change-model) ]
236 [ [ nip mark>> ] [ drop ] 2bi '[ _ validate-loc ] (change-model) ]
237 [ nip relayout ] 2tri ;
239 : caret/mark-changed ( editor -- )
240 [ restart-blinking ] keep scroll>caret ;
244 M: editor model-changed
246 { [ 2dup model>> eq? ] [ contents-changed ] }
247 { [ 2dup caret>> eq? ] [ nip caret/mark-changed ] }
248 { [ 2dup mark>> eq? ] [ nip caret/mark-changed ] }
251 M: editor gadget-selection?
252 selection-start/end = not ;
254 M: editor gadget-selection
255 [ selection-start/end ] [ model>> ] bi doc-range ;
257 : remove-selection ( editor -- )
258 [ selection-start/end ] [ model>> ] bi remove-doc-range ;
260 M: editor user-input*
261 [ selection-start/end ] [ model>> ] bi set-doc-range t ;
263 : editor-string ( editor -- string )
266 : set-editor-string ( string editor -- )
267 model>> set-doc-string ;
269 M: editor gadget-text* editor-string % ;
271 : extend-selection ( editor -- )
274 [ dup caret>> click-loc ] tri ;
276 : mouse-elt ( -- element )
280 } at one-line-elt or ;
282 : drag-direction? ( loc editor -- ? )
283 editor-mark before? ;
285 : drag-selection-caret ( loc editor element -- loc )
287 [ drag-direction? ] [ model>> ] 2bi
288 ] dip prev/next-elt ? ;
290 : drag-selection-mark ( loc editor element -- loc )
292 [ drag-direction? not ]
295 ] dip prev/next-elt ? ;
297 : drag-caret&mark ( editor -- caret mark )
298 [ clicked-loc ] [ mouse-elt ] bi
299 [ drag-selection-caret ]
300 [ drag-selection-mark ] 3bi ;
302 : drag-selection ( editor -- )
305 [ caret>> set-model ] tri ;
307 : editor-cut ( editor clipboard -- )
308 [ gadget-copy ] [ drop remove-selection ] 2bi ;
310 : delete/backspace ( editor quot -- )
311 over gadget-selection? [
312 drop remove-selection
314 [ [ [ editor-caret ] [ model>> ] bi ] dip call ]
319 : editor-delete ( editor elt -- )
320 '[ dupd _ next-elt ] delete/backspace ;
322 : editor-backspace ( editor elt -- )
323 '[ over [ _ prev-elt ] dip ] delete/backspace ;
325 : editor-select-prev ( editor elt -- )
326 '[ _ prev-elt ] change-caret ;
328 : editor-prev ( editor elt -- )
329 [ editor-select-prev ] [ drop mark>caret ] 2bi ;
331 : editor-select-next ( editor elt -- )
332 '[ _ next-elt ] change-caret ;
334 : editor-next ( editor elt -- )
335 dupd editor-select-next mark>caret ;
337 : editor-select ( from to editor -- )
338 [ mark>> set-model ] [ caret>> set-model ] bi-curry bi* ;
340 : select-elt ( editor elt -- )
341 [ [ [ editor-caret ] [ model>> ] bi ] dip prev/next-elt ] [ drop ] 2bi
344 : start-of-document ( editor -- ) doc-elt editor-prev ;
346 : end-of-document ( editor -- ) doc-elt editor-next ;
348 : position-caret ( editor -- )
349 mouse-elt dup one-char-elt =
350 [ drop dup extend-selection dup mark>> click-loc ]
353 : delete-previous-character ( editor -- )
354 char-elt editor-backspace ;
356 : delete-next-character ( editor -- )
357 char-elt editor-delete ;
359 : delete-previous-word ( editor -- )
360 word-elt editor-backspace ;
362 : delete-next-word ( editor -- )
363 word-elt editor-delete ;
365 : delete-to-start-of-line ( editor -- )
366 one-line-elt editor-backspace ;
368 : delete-to-end-of-line ( editor -- )
369 one-line-elt editor-delete ;
371 : delete-to-start-of-document ( editor -- )
372 doc-elt editor-delete ;
374 : delete-to-end-of-document ( editor -- )
375 doc-elt editor-delete ;
377 : com-undo ( editor -- ) model>> undo ;
379 : com-redo ( editor -- ) model>> redo ;
382 { undo-action com-undo }
383 { redo-action com-redo }
384 { T{ key-down f f "DELETE" } delete-next-character }
385 { T{ key-down f f "BACKSPACE" } delete-previous-character }
386 { T{ key-down f { S+ } "BACKSPACE" } delete-previous-character }
387 { T{ key-down f { C+ } "DELETE" } delete-next-word }
388 { T{ key-down f { C+ } "BACKSPACE" } delete-previous-word }
389 { T{ key-down f { A+ } "DELETE" } delete-to-end-of-line }
390 { T{ key-down f { A+ } "BACKSPACE" } delete-to-start-of-line }
393 : com-paste ( editor -- ) clipboard get paste-clipboard ;
395 : paste-selection ( editor -- ) ui.clipboards:selection get paste-clipboard ;
397 : com-cut ( editor -- ) clipboard get editor-cut ;
399 editor "clipboard" f {
400 { cut-action com-cut }
401 { copy-action com-copy }
402 { paste-action com-paste }
403 { T{ button-up } com-copy-selection }
404 { T{ button-up f f 2 } paste-selection }
407 : previous-character ( editor -- )
408 dup gadget-selection? [
409 dup selection-start/end drop
410 over set-caret mark>caret
415 : next-character ( editor -- )
416 dup gadget-selection? [
417 dup selection-start/end nip
418 over set-caret mark>caret
423 : previous-word ( editor -- ) word-elt editor-prev ;
425 : next-word ( editor -- ) word-elt editor-next ;
427 : start-of-line ( editor -- ) one-line-elt editor-prev ;
429 : end-of-line ( editor -- ) one-line-elt editor-next ;
431 editor "caret-motion" f {
432 { T{ button-down } position-caret }
433 { T{ key-down f f "LEFT" } previous-character }
434 { T{ key-down f f "RIGHT" } next-character }
435 { T{ key-down f { C+ } "LEFT" } previous-word }
436 { T{ key-down f { C+ } "RIGHT" } next-word }
437 { T{ key-down f f "HOME" } start-of-line }
438 { T{ key-down f f "END" } end-of-line }
439 { T{ key-down f { C+ } "HOME" } start-of-document }
440 { T{ key-down f { C+ } "END" } end-of-document }
443 : clear-editor ( editor -- )
446 : select-all ( editor -- ) doc-elt select-elt ;
448 : select-line ( editor -- ) one-line-elt select-elt ;
450 : select-word ( editor -- ) one-word-elt select-elt ;
452 : selected-token ( editor -- string )
453 dup gadget-selection?
454 [ dup select-word ] unless
457 : select-previous-character ( editor -- )
458 char-elt editor-select-prev ;
460 : select-next-character ( editor -- )
461 char-elt editor-select-next ;
463 : select-previous-word ( editor -- )
464 word-elt editor-select-prev ;
466 : select-next-word ( editor -- )
467 word-elt editor-select-next ;
469 : select-start-of-line ( editor -- )
470 one-line-elt editor-select-prev ;
472 : select-end-of-line ( editor -- )
473 one-line-elt editor-select-next ;
475 : select-start-of-document ( editor -- )
476 doc-elt editor-select-prev ;
478 : select-end-of-document ( editor -- )
479 doc-elt editor-select-next ;
481 editor "selection" f {
482 { T{ button-down f { S+ } 1 } extend-selection }
483 { T{ button-up f { S+ } 1 } com-copy-selection }
484 { T{ drag { # 1 } } drag-selection }
485 { gain-focus focus-editor }
486 { lose-focus unfocus-editor }
487 { delete-action remove-selection }
488 { select-all-action select-all }
489 { T{ key-down f { C+ } "l" } select-line }
490 { T{ key-down f { S+ } "LEFT" } select-previous-character }
491 { T{ key-down f { S+ } "RIGHT" } select-next-character }
492 { T{ key-down f { S+ C+ } "LEFT" } select-previous-word }
493 { T{ key-down f { S+ C+ } "RIGHT" } select-next-word }
494 { T{ key-down f { S+ } "HOME" } select-start-of-line }
495 { T{ key-down f { S+ } "END" } select-end-of-line }
496 { T{ key-down f { S+ C+ } "HOME" } select-start-of-document }
497 { T{ key-down f { S+ C+ } "END" } select-end-of-document }
500 : editor-menu ( editor -- )
508 } show-commands-menu ;
511 ! { T{ button-down f f 2 } paste-selection }
512 { T{ button-down f f 3 } editor-menu }
516 TUPLE: multiline-editor < editor ;
518 : <multiline-editor> ( -- editor )
519 multiline-editor new-editor ;
521 : previous-line ( editor -- ) line-elt editor-prev ;
523 : next-line ( editor -- ) line-elt editor-next ;
527 : page-elt ( editor -- editor element ) dup visible-lines 1 - <page-elt> ;
531 : previous-page ( editor -- ) page-elt editor-prev ;
533 : next-page ( editor -- ) page-elt editor-next ;
535 : select-previous-line ( editor -- ) line-elt editor-select-prev ;
537 : select-next-line ( editor -- ) line-elt editor-select-next ;
539 : select-previous-page ( editor -- ) page-elt editor-select-prev ;
541 : select-next-page ( editor -- ) page-elt editor-select-next ;
543 : insert-newline ( editor -- )
544 "\n" swap user-input* drop ;
546 : change-selection ( editor quot -- )
547 '[ gadget-selection @ ] [ user-input* drop ] bi ; inline
551 : join-lines ( string -- string' )
553 [ rest-slice [ [ blank? ] trim-head-slice ] map! drop ]
554 [ but-last-slice [ [ blank? ] trim-tail-slice ] map! drop ]
558 : last-line? ( document line -- ? )
559 [ last-line# ] dip = ;
561 : prev-line-and-this ( document line -- start end )
562 swap [ drop 1 - 0 2array ] [ line-end ] 2bi ;
564 : join-with-prev ( document line -- )
565 [ prev-line-and-this ] [ drop ] 2bi
566 [ join-lines ] change-doc-range ;
568 : this-line-and-next ( document line -- start end )
569 swap [ drop 0 2array ] [ [ 1 + ] dip line-end ] 2bi ;
571 : join-with-next ( document line -- )
572 [ this-line-and-next ] [ drop ] 2bi
573 [ join-lines ] change-doc-range ;
577 : com-join-lines ( editor -- )
578 dup gadget-selection?
579 [ [ join-lines ] change-selection ] [
580 [ model>> ] [ editor-caret first ] bi {
581 { [ over last-line# 0 = ] [ 2drop ] }
582 { [ 2dup last-line? ] [ join-with-prev ] }
587 multiline-editor "multiline" f {
588 { T{ key-down f f "UP" } previous-line }
589 { T{ key-down f f "DOWN" } next-line }
590 { T{ key-down f { S+ } "UP" } select-previous-line }
591 { T{ key-down f { S+ } "DOWN" } select-next-line }
592 { T{ key-down f f "PAGE_UP" } previous-page }
593 { T{ key-down f f "PAGE_DOWN" } next-page }
594 { T{ key-down f { S+ } "PAGE_UP" } select-previous-page }
595 { T{ key-down f { S+ } "PAGE_DOWN" } select-next-page }
596 { T{ key-down f f "RET" } insert-newline }
597 { T{ key-down f { S+ } "RET" } insert-newline }
598 { T{ key-down f f "ENTER" } insert-newline }
599 { T{ key-down f { C+ } "j" } com-join-lines }
602 TUPLE: source-editor < multiline-editor ;
604 : <source-editor> ( -- editor )
605 source-editor new-editor ;
608 : <element-model> ( editor element -- model )
609 [ [ caret>> ] [ model>> ] bi ] dip
610 '[ _ _ elt-string ] <arrow> ;
612 ! Fields wrap an editor
613 TUPLE: field < border editor min-cols max-cols ;
617 : field-theme ( gadget -- gadget )
620 field-border-color <solid> >>boundary ; inline
622 : <field-border> ( gadget -- border )
623 border new-border field-theme ;
627 : new-field ( class -- gadget )
628 [ <editor> ] dip new-border
629 dup gadget-child >>editor
632 ! For line-gadget-width
633 M: field font>> editor>> font>> ;
637 [ editor>> pref-dim ]
638 [ [ line-gadget-width ] [ drop second ] 2bi 2array ]
639 tri border-pref-dim ;
641 M: field default-text>> editor>> default-text>> ;
643 M: field default-text<< editor>> default-text<< ;
645 TUPLE: model-field < field field-model ;
647 : <model-field> ( model -- gadget )
648 model-field new-field
651 M: model-field graft*
652 [ [ field-model>> value>> ] [ editor>> ] bi set-editor-string ]
653 [ dup editor>> model>> add-connection ]
656 M: model-field ungraft*
657 dup editor>> model>> remove-connection ;
659 M: model-field model-changed
660 nip [ editor>> editor-string ] [ field-model>> ] bi set-model ;
662 TUPLE: action-field < field quot ;
664 : <action-field> ( quot: ( string -- ) -- gadget )
665 action-field [ <editor> ] dip new-border
666 dup gadget-child >>editor
670 : invoke-action-field ( field -- )
671 [ editor>> editor-string ]
672 [ editor>> clear-editor ]
674 tri call( string -- ) ;
677 { T{ key-down f f "RET" } [ invoke-action-field ] }