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 M: editor preedit? preedit-start>> ;
28 : <loc> ( -- loc ) { 0 0 } <model> ;
30 : init-editor-locs ( editor -- editor )
34 : editor-theme ( editor -- editor )
35 monospace-font >>font ; inline
39 : new-editor ( class -- editor )
45 : <editor> ( -- editor )
50 : activate-editor-model ( editor model -- )
52 [ nip activate-model ]
53 [ swap model>> add-loc ] 2tri ;
55 : deactivate-editor-model ( editor model -- )
57 [ nip deactivate-model ]
58 [ swap model>> remove-loc ] 2tri ;
60 : blink-caret ( editor -- )
61 [ not ] change-blink relayout-1 ;
63 SYMBOL: blink-interval
65 750 milliseconds blink-interval set-global
67 : stop-blinking ( editor -- )
68 blink-timer>> [ stop-timer ] when* ;
70 : start-blinking ( editor -- )
72 blink-timer>> [ restart-timer ] when* ;
74 : restart-blinking ( editor -- )
84 [ dup caret>> activate-editor-model ]
85 [ dup mark>> activate-editor-model ]
88 '[ _ blink-caret ] blink-interval get dup <timer>
93 [ [ stop-blinking ] [ f >>blink-timer drop ] bi ]
94 [ dup caret>> deactivate-editor-model ]
95 [ dup mark>> deactivate-editor-model ] tri ;
97 : editor-caret ( editor -- loc ) caret>> value>> ;
99 : editor-mark ( editor -- loc ) mark>> value>> ;
101 : set-caret ( loc editor -- )
102 [ model>> validate-loc ] [ caret>> ] bi set-model ;
104 : set-mark ( loc editor -- )
105 [ model>> validate-loc ] [ mark>> ] bi set-model ;
107 : change-caret ( editor quot: ( loc document -- newloc ) -- )
108 [ [ [ editor-caret ] [ model>> ] bi ] dip call ] [ drop ] 2bi
111 : mark>caret ( editor -- )
112 [ editor-caret ] [ mark>> ] bi set-model ;
114 : change-caret&mark ( editor quot: ( loc document -- newloc ) -- )
115 [ change-caret ] [ drop mark>caret ] 2bi ; inline
117 : editor-line ( n editor -- str ) control-value nth ;
119 :: point>loc ( point editor -- loc )
120 point second editor y>line {
121 { [ dup 0 < ] [ drop { 0 0 } ] }
122 { [ dup editor model>> last-line# > ] [ drop editor model>> doc-end ] }
132 : clicked-loc ( editor -- loc )
133 [ hand-rel ] keep point>loc ;
135 : click-loc ( editor model -- )
136 [ clicked-loc ] dip set-model ;
138 : focus-editor ( editor -- )
139 [ start-blinking ] [ t >>focused? relayout-1 ] bi ;
141 : unfocus-editor ( editor -- )
142 [ stop-blinking ] [ f >>focused? relayout-1 ] bi ;
144 : loc>x ( loc editor -- x )
145 [ first2 swap ] dip [ editor-line ] [ font>> ] bi swap offset>x round ;
147 : loc>point ( loc editor -- loc )
148 [ loc>x ] [ [ first ] dip line>y ceiling ] 2bi 2array ;
150 : caret-loc ( editor -- loc )
151 [ editor-caret ] keep loc>point ;
153 : caret-dim ( editor -- dim )
154 [ 0 ] dip line-height 2array ;
156 : scroll>caret ( editor -- )
157 dup graft-state>> second [
159 [ caret-loc ] [ caret-dim { 2 1 } v+ ] bi <rect>
165 : draw-caret? ( editor -- ? )
166 { [ focused?>> ] [ blink>> ]
167 [ [ preedit? not ] [ preedit-selection-mode?>> not ] bi or ] } 1&& ;
169 : draw-caret ( editor -- )
171 [ editor-caret-color gl-color ] dip
172 [ caret-loc ] [ caret-dim ] bi
176 :: draw-preedit-underlines ( editor -- )
177 editor [ preedit? ] [ preedit-underlines>> ] bi and [
178 editor [ caret-loc second ] [ caret-dim second ] bi + 2.0 - :> y
179 editor editor-caret first :> row
180 editor font>> foreground>> gl-color
181 editor preedit-underlines>> [
183 dup second glLineWidth
184 first editor preedit-start>> second dup 2array v+ first2
185 [ row swap 2array editor loc>x 1.0 + y 2array ]
186 [ row swap 2array editor loc>x 1.0 - y 2array ]
193 : selection-start/end ( editor -- start end )
194 [ editor-mark ] [ editor-caret ] bi sort-pair ;
196 SYMBOL: selected-lines
198 TUPLE: selected-line start end first? last? ;
200 : compute-selection ( editor -- assoc )
201 dup gadget-selection? [
202 [ selection-start/end [ [ first ] bi@ [a,b] ] [ ] 2bi ]
204 '[ [ _ _ ] [ _ start/end-on-line ] bi 2array ] H{ } map>assoc
207 :: draw-selection ( line pair editor -- )
208 pair [ editor font>> line offset>x ] map :> pair
209 editor selection-color>> gl-color
211 pair second pair first - round 1 max editor line-height 2array
214 : draw-unselected-line ( line editor -- )
215 font>> swap draw-text ;
217 : draw-selected-line ( line pair editor -- )
219 [ nip draw-unselected-line ] [ draw-selection ] 3bi
223 [ [ first2 ] [ selection-color>> ] bi* <selection> ]
224 [ draw-unselected-line ] bi
228 : draw-default-text? ( editor -- ? )
229 { [ default-text>> ] [ model>> doc-string empty? ] } 1&& ;
231 : draw-default-text ( editor -- )
232 [ font>> clone line-color >>foreground ]
233 [ default-text>> ] bi draw-text ;
238 [ selected-lines get at ] dip over
239 [ draw-selected-line ] [ nip draw-unselected-line ] if ;
241 M: editor draw-gadget*
242 dup draw-default-text? [
243 [ draw-default-text ] [ draw-caret ] [ draw-preedit-underlines ] tri
245 dup compute-selection selected-lines [
246 [ draw-lines ] [ draw-caret ] [ draw-preedit-underlines ] tri
251 [ call-next-method ] keep ! at least as big as our min-rows/min-cols
252 ! Add some space for the caret.
253 [ font>> ] keep dup draw-default-text?
254 [ default-text>> ] [ control-value ] if
255 text-dim { 1 0 } v+ vmax ;
257 M: editor baseline font>> font-metrics ascent>> ;
259 M: editor cap-height font>> font-metrics cap-height>> ;
263 : contents-changed ( model editor -- )
264 [ [ nip caret>> ] [ drop ] 2bi '[ _ validate-loc ] (change-model) ]
265 [ [ nip mark>> ] [ drop ] 2bi '[ _ validate-loc ] (change-model) ]
266 [ nip relayout ] 2tri ;
268 : caret/mark-changed ( editor -- )
269 [ restart-blinking ] keep scroll>caret ;
273 M: editor model-changed
275 { [ 2dup model>> eq? ] [ contents-changed ] }
276 { [ 2dup caret>> eq? ] [ nip caret/mark-changed ] }
277 { [ 2dup mark>> eq? ] [ nip caret/mark-changed ] }
280 M: editor gadget-selection?
281 selection-start/end = not ;
283 M: editor gadget-selection
284 [ selection-start/end ] [ model>> ] bi doc-range ;
286 : remove-selection ( editor -- )
287 [ selection-start/end ] [ model>> ] bi remove-doc-range ;
289 M: editor user-input*
290 [ selection-start/end ] [ model>> ] bi set-doc-range t ;
292 M: editor temp-im-input
293 [ selection-start/end ] [ model>> ] bi set-doc-range* t ;
295 : editor-string ( editor -- string )
298 : set-editor-string ( string editor -- )
299 model>> set-doc-string ;
301 M: editor gadget-text* editor-string % ;
303 : extend-selection ( editor -- )
306 [ dup caret>> click-loc ] tri ;
308 : remove-preedit-text ( editor -- )
309 { [ preedit-start>> ] [ set-caret ]
310 [ preedit-end>> ] [ set-mark ]
314 : remove-preedit-info ( editor -- )
317 f >>preedit-selected-start
318 f >>preedit-selected-end
319 f >>preedit-selection-mode?
320 f >>preedit-underlines
323 : mouse-elt ( -- element )
327 } at one-line-elt or ;
329 : drag-direction? ( loc editor -- ? )
330 editor-mark before? ;
332 : drag-selection-caret ( loc editor element -- loc )
334 [ drag-direction? ] [ model>> ] 2bi
335 ] dip prev/next-elt ? ;
337 : drag-selection-mark ( loc editor element -- loc )
339 [ drag-direction? not ]
342 ] dip prev/next-elt ? ;
344 : drag-caret&mark ( editor -- caret mark )
345 [ clicked-loc ] [ mouse-elt ] bi
346 [ drag-selection-caret ]
347 [ drag-selection-mark ] 3bi ;
349 : drag-selection ( editor -- )
352 [ caret>> set-model ] tri ;
354 : editor-cut ( editor clipboard -- )
355 [ gadget-copy ] [ drop remove-selection ] 2bi ;
357 : delete/backspace ( editor quot -- )
358 over gadget-selection? [
359 drop remove-selection
361 [ [ [ editor-caret ] [ model>> ] bi ] dip call ]
366 : editor-delete ( editor elt -- )
367 '[ dupd _ next-elt ] delete/backspace ;
369 : editor-backspace ( editor elt -- )
370 '[ over [ _ prev-elt ] dip ] delete/backspace ;
372 : editor-select-prev ( editor elt -- )
373 '[ _ prev-elt ] change-caret ;
375 : editor-prev ( editor elt -- )
376 [ editor-select-prev ] [ drop mark>caret ] 2bi ;
378 : editor-select-next ( editor elt -- )
379 '[ _ next-elt ] change-caret ;
381 : editor-next ( editor elt -- )
382 dupd editor-select-next mark>caret ;
384 : editor-select ( from to editor -- )
385 [ mark>> set-model ] [ caret>> set-model ] bi-curry bi* ;
387 : select-elt ( editor elt -- )
388 [ [ [ editor-caret ] [ model>> ] bi ] dip prev/next-elt ] [ drop ] 2bi
391 : start-of-document ( editor -- ) doc-elt editor-prev ;
393 : end-of-document ( editor -- ) doc-elt editor-next ;
395 : position-caret ( editor -- )
396 mouse-elt dup one-char-elt =
397 [ drop dup extend-selection dup mark>> click-loc ]
400 : delete-previous-character ( editor -- )
401 char-elt editor-backspace ;
403 : delete-next-character ( editor -- )
404 char-elt editor-delete ;
406 : delete-previous-word ( editor -- )
407 word-elt editor-backspace ;
409 : delete-next-word ( editor -- )
410 word-elt editor-delete ;
412 : delete-to-start-of-line ( editor -- )
413 one-line-elt editor-backspace ;
415 : delete-to-end-of-line ( editor -- )
416 one-line-elt editor-delete ;
418 : delete-to-start-of-document ( editor -- )
419 doc-elt editor-delete ;
421 : delete-to-end-of-document ( editor -- )
422 doc-elt editor-delete ;
424 : com-undo ( editor -- ) model>> undo ;
426 : com-redo ( editor -- ) model>> redo ;
429 { undo-action com-undo }
430 { redo-action com-redo }
431 { T{ key-down f f "DELETE" } delete-next-character }
432 { T{ key-down f f "BACKSPACE" } delete-previous-character }
433 { T{ key-down f { S+ } "BACKSPACE" } delete-previous-character }
434 { T{ key-down f { C+ } "DELETE" } delete-next-word }
435 { T{ key-down f { C+ } "BACKSPACE" } delete-previous-word }
436 { T{ key-down f { A+ } "DELETE" } delete-to-end-of-line }
437 { T{ key-down f { A+ } "BACKSPACE" } delete-to-start-of-line }
438 { T{ key-down f { C+ } "d" } delete-next-character }
439 { T{ key-down f { C+ } "h" } delete-previous-character }
440 { T{ key-down f { C+ } "u" } delete-to-start-of-line }
441 { T{ key-down f { C+ } "k" } delete-to-end-of-line }
442 { T{ key-down f { C+ } "w" } delete-previous-word }
445 : com-paste ( editor -- ) clipboard get paste-clipboard ;
447 : paste-selection ( editor -- ) ui.clipboards:selection get paste-clipboard ;
449 : com-cut ( editor -- ) clipboard get editor-cut ;
451 editor "clipboard" f {
452 { cut-action com-cut }
453 { copy-action com-copy }
454 { paste-action com-paste }
455 { T{ button-up } com-copy-selection }
456 { T{ button-up f f 2 } paste-selection }
459 : previous-character ( editor -- )
460 dup gadget-selection? [
461 dup selection-start/end drop
462 over set-caret mark>caret
467 : next-character ( editor -- )
468 dup gadget-selection? [
469 dup selection-start/end nip
470 over set-caret mark>caret
475 : previous-word ( editor -- ) word-elt editor-prev ;
477 : next-word ( editor -- ) word-elt editor-next ;
479 : start-of-line ( editor -- ) one-line-elt editor-prev ;
481 : end-of-line ( editor -- ) one-line-elt editor-next ;
483 editor "caret-motion" f {
484 { T{ button-down } position-caret }
485 { T{ key-down f f "LEFT" } previous-character }
486 { T{ key-down f f "RIGHT" } next-character }
487 { T{ key-down f { C+ } "LEFT" } previous-word }
488 { T{ key-down f { C+ } "RIGHT" } next-word }
489 { T{ key-down f f "HOME" } start-of-line }
490 { T{ key-down f f "END" } end-of-line }
491 { T{ key-down f { C+ } "HOME" } start-of-document }
492 { T{ key-down f { C+ } "END" } end-of-document }
493 { T{ key-down f { C+ } "b" } previous-character }
494 { T{ key-down f { C+ } "f" } next-character }
495 { T{ key-down f { C+ } "a" } start-of-line }
496 { T{ key-down f { C+ } "e" } end-of-line }
499 : clear-editor ( editor -- )
502 : select-all ( editor -- ) doc-elt select-elt ;
504 : select-line ( editor -- ) one-line-elt select-elt ;
506 : select-word ( editor -- ) one-word-elt select-elt ;
508 : selected-token ( editor -- string )
509 dup gadget-selection?
510 [ dup select-word ] unless
513 : select-previous-character ( editor -- )
514 char-elt editor-select-prev ;
516 : select-next-character ( editor -- )
517 char-elt editor-select-next ;
519 : select-previous-word ( editor -- )
520 word-elt editor-select-prev ;
522 : select-next-word ( editor -- )
523 word-elt editor-select-next ;
525 : select-start-of-line ( editor -- )
526 one-line-elt editor-select-prev ;
528 : select-end-of-line ( editor -- )
529 one-line-elt editor-select-next ;
531 : select-start-of-document ( editor -- )
532 doc-elt editor-select-prev ;
534 : select-end-of-document ( editor -- )
535 doc-elt editor-select-next ;
537 editor "selection" f {
538 { T{ button-down f { S+ } 1 } extend-selection }
539 { T{ button-up f { S+ } 1 } com-copy-selection }
540 { T{ drag { # 1 } } drag-selection }
541 { gain-focus focus-editor }
542 { lose-focus unfocus-editor }
543 { delete-action remove-selection }
544 { select-all-action select-all }
545 { T{ key-down f { C+ } "l" } select-line }
546 { T{ key-down f { S+ } "LEFT" } select-previous-character }
547 { T{ key-down f { S+ } "RIGHT" } select-next-character }
548 { T{ key-down f { S+ C+ } "LEFT" } select-previous-word }
549 { T{ key-down f { S+ C+ } "RIGHT" } select-next-word }
550 { T{ key-down f { S+ } "HOME" } select-start-of-line }
551 { T{ key-down f { S+ } "END" } select-end-of-line }
552 { T{ key-down f { S+ C+ } "HOME" } select-start-of-document }
553 { T{ key-down f { S+ C+ } "END" } select-end-of-document }
556 : editor-menu ( editor -- )
564 } show-commands-menu ;
567 ! { T{ button-down f f 2 } paste-selection }
568 { T{ button-down f f 3 } editor-menu }
572 TUPLE: multiline-editor < editor ;
574 : <multiline-editor> ( -- editor )
575 multiline-editor new-editor ;
577 : previous-line ( editor -- ) line-elt editor-prev ;
579 : next-line ( editor -- ) line-elt editor-next ;
583 : page-elt ( editor n -- editor element )
584 over visible-lines 1 - min 1 max <page-elt> ;
586 : prev-page-elt ( editor -- editor element )
587 dup editor-caret first page-elt ;
589 : next-page-elt ( editor -- editor element )
590 dup [ control-value length 1 - ] [ editor-caret first ] bi - page-elt ;
594 : previous-page ( editor -- ) prev-page-elt editor-prev ;
596 : next-page ( editor -- ) next-page-elt editor-next ;
598 : select-previous-line ( editor -- ) line-elt editor-select-prev ;
600 : select-next-line ( editor -- ) line-elt editor-select-next ;
602 : select-previous-page ( editor -- ) prev-page-elt editor-select-prev ;
604 : select-next-page ( editor -- ) next-page-elt editor-select-next ;
606 : insert-newline ( editor -- )
607 "\n" swap user-input* drop ;
609 : change-selection ( editor quot -- )
610 '[ gadget-selection @ ] [ user-input* drop ] bi ; inline
614 : join-lines ( string -- string' )
616 [ rest-slice [ [ blank? ] trim-head-slice ] map! drop ]
617 [ but-last-slice [ [ blank? ] trim-tail-slice ] map! drop ]
621 : last-line? ( document line -- ? )
622 [ last-line# ] dip = ;
624 : prev-line-and-this ( document line -- start end )
625 swap [ drop 1 - 0 2array ] [ line-end ] 2bi ;
627 : join-with-prev ( document line -- )
628 [ prev-line-and-this ] [ drop ] 2bi
629 [ join-lines ] change-doc-range ;
631 : this-line-and-next ( document line -- start end )
632 swap [ drop 0 2array ] [ [ 1 + ] dip line-end ] 2bi ;
634 : join-with-next ( document line -- )
635 [ this-line-and-next ] [ drop ] 2bi
636 [ join-lines ] change-doc-range ;
640 : com-join-lines ( editor -- )
641 dup gadget-selection?
642 [ [ join-lines ] change-selection ] [
643 [ model>> ] [ editor-caret first ] bi {
644 { [ over last-line# 0 = ] [ 2drop ] }
645 { [ 2dup last-line? ] [ join-with-prev ] }
650 multiline-editor "multiline" f {
651 { T{ key-down f f "UP" } previous-line }
652 { T{ key-down f f "DOWN" } next-line }
653 { T{ key-down f { S+ } "UP" } select-previous-line }
654 { T{ key-down f { S+ } "DOWN" } select-next-line }
655 { T{ key-down f f "PAGE_UP" } previous-page }
656 { T{ key-down f f "PAGE_DOWN" } next-page }
657 { T{ key-down f { S+ } "PAGE_UP" } select-previous-page }
658 { T{ key-down f { S+ } "PAGE_DOWN" } select-next-page }
659 { T{ key-down f f "RET" } insert-newline }
660 { T{ key-down f { S+ } "RET" } insert-newline }
661 { T{ key-down f f "ENTER" } insert-newline }
662 { T{ key-down f { C+ } "j" } com-join-lines }
663 { T{ key-down f { C+ } "p" } previous-line }
664 { T{ key-down f { C+ } "n" } next-line }
667 TUPLE: source-editor < multiline-editor ;
669 : <source-editor> ( -- editor )
670 source-editor new-editor ;
673 : <element-model> ( editor element -- model )
674 [ [ caret>> ] [ model>> ] bi ] dip
675 '[ _ _ elt-string ] <arrow> ;
677 ! Fields wrap an editor
678 TUPLE: field < border editor min-cols max-cols ;
682 : field-theme ( gadget -- gadget )
685 field-border-color <solid> >>boundary ; inline
687 : <field-border> ( gadget -- border )
688 border new-border field-theme ;
692 : new-field ( class -- gadget )
693 [ <editor> ] dip new-border
694 dup gadget-child >>editor
697 ! For line-gadget-width
698 M: field font>> editor>> font>> ;
702 [ editor>> pref-dim ]
703 [ [ line-gadget-width ] [ drop second ] 2bi 2array ]
704 tri border-pref-dim ;
706 M: field default-text>> editor>> default-text>> ;
708 M: field default-text<< editor>> default-text<< ;
710 TUPLE: model-field < field field-model ;
712 : <model-field> ( model -- gadget )
713 model-field new-field
716 M: model-field graft*
717 [ [ field-model>> value>> ] [ editor>> ] bi set-editor-string ]
718 [ dup editor>> model>> add-connection ]
721 M: model-field ungraft*
722 dup editor>> model>> remove-connection ;
724 M: model-field model-changed
725 nip [ editor>> editor-string ] [ field-model>> ] bi set-model ;
727 TUPLE: action-field < field quot ;
729 : <action-field> ( quot: ( string -- ) -- gadget )
730 action-field [ <editor> ] dip new-border
731 dup gadget-child >>editor
735 : invoke-action-field ( field -- )
736 [ editor>> editor-string ]
737 [ editor>> clear-editor ]
739 tri call( string -- ) ;
742 { T{ key-down f f "RET" } [ invoke-action-field ] }