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 ;
20 : <loc> ( -- loc ) { 0 0 } <model> ;
22 : init-editor-locs ( editor -- editor )
26 : editor-theme ( editor -- editor )
27 COLOR: red >>caret-color
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 [ caret-color>> gl-color ]
162 [ caret-loc ] [ caret-dim ] bi
167 : selection-start/end ( editor -- start end )
168 [ editor-mark ] [ editor-caret ] bi sort-pair ;
170 SYMBOL: selected-lines
172 TUPLE: selected-line start end first? last? ;
174 : compute-selection ( editor -- assoc )
175 dup gadget-selection? [
176 [ selection-start/end [ [ first ] bi@ [a,b] ] [ ] 2bi ]
178 '[ [ _ _ ] [ _ start/end-on-line ] bi 2array ] H{ } map>assoc
181 :: draw-selection ( line pair editor -- )
182 pair [ editor font>> line offset>x ] map :> pair
183 editor selection-color>> gl-color
185 pair second pair first - round 1 max editor line-height 2array
188 : draw-unselected-line ( line editor -- )
189 font>> swap draw-text ;
191 : draw-selected-line ( line pair editor -- )
193 [ nip draw-unselected-line ] [ draw-selection ] 3bi
197 [ [ first2 ] [ selection-color>> ] bi* <selection> ]
198 [ draw-unselected-line ] bi
204 M: editor draw-line ( line index editor -- )
205 [ selected-lines get at ] dip over
206 [ draw-selected-line ] [ nip draw-unselected-line ] if ;
208 M: editor draw-gadget*
209 dup compute-selection selected-lines [
210 [ draw-lines ] [ draw-caret ] bi
214 ! Add some space for the caret.
215 [ font>> ] [ control-value ] bi text-dim { 1 0 } v+ ;
217 M: editor baseline font>> font-metrics ascent>> ;
219 M: editor cap-height font>> font-metrics cap-height>> ;
223 : contents-changed ( model editor -- )
224 [ [ nip caret>> ] [ drop ] 2bi '[ _ validate-loc ] (change-model) ]
225 [ [ nip mark>> ] [ drop ] 2bi '[ _ validate-loc ] (change-model) ]
226 [ nip relayout ] 2tri ;
228 : caret/mark-changed ( editor -- )
229 [ restart-blinking ] keep scroll>caret ;
233 M: editor model-changed
235 { [ 2dup model>> eq? ] [ contents-changed ] }
236 { [ 2dup caret>> eq? ] [ nip caret/mark-changed ] }
237 { [ 2dup mark>> eq? ] [ nip caret/mark-changed ] }
240 M: editor gadget-selection?
241 selection-start/end = not ;
243 M: editor gadget-selection
244 [ selection-start/end ] [ model>> ] bi doc-range ;
246 : remove-selection ( editor -- )
247 [ selection-start/end ] [ model>> ] bi remove-doc-range ;
249 M: editor user-input*
250 [ selection-start/end ] [ model>> ] bi set-doc-range t ;
252 : editor-string ( editor -- string )
255 : set-editor-string ( string editor -- )
256 model>> set-doc-string ;
258 M: editor gadget-text* editor-string % ;
260 : extend-selection ( editor -- )
263 [ dup caret>> click-loc ] tri ;
265 : mouse-elt ( -- element )
269 } at one-line-elt or ;
271 : drag-direction? ( loc editor -- ? )
272 editor-mark before? ;
274 : drag-selection-caret ( loc editor element -- loc )
276 [ drag-direction? ] [ model>> ] 2bi
277 ] dip prev/next-elt ? ;
279 : drag-selection-mark ( loc editor element -- loc )
281 [ drag-direction? not ]
284 ] dip prev/next-elt ? ;
286 : drag-caret&mark ( editor -- caret mark )
287 [ clicked-loc ] [ mouse-elt ] bi
288 [ drag-selection-caret ]
289 [ drag-selection-mark ] 3bi ;
291 : drag-selection ( editor -- )
294 [ caret>> set-model ] tri ;
296 : editor-cut ( editor clipboard -- )
297 [ gadget-copy ] [ drop remove-selection ] 2bi ;
299 : delete/backspace ( editor quot -- )
300 over gadget-selection? [
301 drop remove-selection
303 [ [ [ editor-caret ] [ model>> ] bi ] dip call ]
308 : editor-delete ( editor elt -- )
309 '[ dupd _ next-elt ] delete/backspace ;
311 : editor-backspace ( editor elt -- )
312 '[ over [ _ prev-elt ] dip ] delete/backspace ;
314 : editor-select-prev ( editor elt -- )
315 '[ _ prev-elt ] change-caret ;
317 : editor-prev ( editor elt -- )
318 [ editor-select-prev ] [ drop mark>caret ] 2bi ;
320 : editor-select-next ( editor elt -- )
321 '[ _ next-elt ] change-caret ;
323 : editor-next ( editor elt -- )
324 dupd editor-select-next mark>caret ;
326 : editor-select ( from to editor -- )
327 [ mark>> set-model ] [ caret>> set-model ] bi-curry bi* ;
329 : select-elt ( editor elt -- )
330 [ [ [ editor-caret ] [ model>> ] bi ] dip prev/next-elt ] [ drop ] 2bi
333 : start-of-document ( editor -- ) doc-elt editor-prev ;
335 : end-of-document ( editor -- ) doc-elt editor-next ;
337 : position-caret ( editor -- )
338 mouse-elt dup one-char-elt =
339 [ drop dup extend-selection dup mark>> click-loc ]
342 : delete-previous-character ( editor -- )
343 char-elt editor-backspace ;
345 : delete-next-character ( editor -- )
346 char-elt editor-delete ;
348 : delete-previous-word ( editor -- )
349 word-elt editor-backspace ;
351 : delete-next-word ( editor -- )
352 word-elt editor-delete ;
354 : delete-to-start-of-line ( editor -- )
355 one-line-elt editor-backspace ;
357 : delete-to-end-of-line ( editor -- )
358 one-line-elt editor-delete ;
360 : delete-to-start-of-document ( editor -- )
361 doc-elt editor-delete ;
363 : delete-to-end-of-document ( editor -- )
364 doc-elt editor-delete ;
366 : com-undo ( editor -- ) model>> undo ;
368 : com-redo ( editor -- ) model>> redo ;
371 { undo-action com-undo }
372 { redo-action com-redo }
373 { T{ key-down f f "DELETE" } delete-next-character }
374 { T{ key-down f f "BACKSPACE" } delete-previous-character }
375 { T{ key-down f { S+ } "BACKSPACE" } delete-previous-character }
376 { T{ key-down f { C+ } "DELETE" } delete-next-word }
377 { T{ key-down f { C+ } "BACKSPACE" } delete-previous-word }
378 { T{ key-down f { A+ } "DELETE" } delete-to-end-of-line }
379 { T{ key-down f { A+ } "BACKSPACE" } delete-to-start-of-line }
382 : com-paste ( editor -- ) clipboard get paste-clipboard ;
384 : paste-selection ( editor -- ) ui.clipboards:selection get paste-clipboard ;
386 : com-cut ( editor -- ) clipboard get editor-cut ;
388 editor "clipboard" f {
389 { cut-action com-cut }
390 { copy-action com-copy }
391 { paste-action com-paste }
392 { T{ button-up } com-copy-selection }
393 { T{ button-up f f 2 } paste-selection }
396 : previous-character ( editor -- )
397 dup gadget-selection? [
398 dup selection-start/end drop
399 over set-caret mark>caret
404 : next-character ( editor -- )
405 dup gadget-selection? [
406 dup selection-start/end nip
407 over set-caret mark>caret
412 : previous-word ( editor -- ) word-elt editor-prev ;
414 : next-word ( editor -- ) word-elt editor-next ;
416 : start-of-line ( editor -- ) one-line-elt editor-prev ;
418 : end-of-line ( editor -- ) one-line-elt editor-next ;
420 editor "caret-motion" f {
421 { T{ button-down } position-caret }
422 { T{ key-down f f "LEFT" } previous-character }
423 { T{ key-down f f "RIGHT" } next-character }
424 { T{ key-down f { C+ } "LEFT" } previous-word }
425 { T{ key-down f { C+ } "RIGHT" } next-word }
426 { T{ key-down f f "HOME" } start-of-line }
427 { T{ key-down f f "END" } end-of-line }
428 { T{ key-down f { C+ } "HOME" } start-of-document }
429 { T{ key-down f { C+ } "END" } end-of-document }
432 : clear-editor ( editor -- )
435 : select-all ( editor -- ) doc-elt select-elt ;
437 : select-line ( editor -- ) one-line-elt select-elt ;
439 : select-word ( editor -- ) one-word-elt select-elt ;
441 : selected-token ( editor -- string )
442 dup gadget-selection?
443 [ dup select-word ] unless
446 : select-previous-character ( editor -- )
447 char-elt editor-select-prev ;
449 : select-next-character ( editor -- )
450 char-elt editor-select-next ;
452 : select-previous-word ( editor -- )
453 word-elt editor-select-prev ;
455 : select-next-word ( editor -- )
456 word-elt editor-select-next ;
458 : select-start-of-line ( editor -- )
459 one-line-elt editor-select-prev ;
461 : select-end-of-line ( editor -- )
462 one-line-elt editor-select-next ;
464 : select-start-of-document ( editor -- )
465 doc-elt editor-select-prev ;
467 : select-end-of-document ( editor -- )
468 doc-elt editor-select-next ;
470 editor "selection" f {
471 { T{ button-down f { S+ } 1 } extend-selection }
472 { T{ button-up f { S+ } 1 } com-copy-selection }
473 { T{ drag { # 1 } } drag-selection }
474 { gain-focus focus-editor }
475 { lose-focus unfocus-editor }
476 { delete-action remove-selection }
477 { select-all-action select-all }
478 { T{ key-down f { C+ } "l" } select-line }
479 { T{ key-down f { S+ } "LEFT" } select-previous-character }
480 { T{ key-down f { S+ } "RIGHT" } select-next-character }
481 { T{ key-down f { S+ C+ } "LEFT" } select-previous-word }
482 { T{ key-down f { S+ C+ } "RIGHT" } select-next-word }
483 { T{ key-down f { S+ } "HOME" } select-start-of-line }
484 { T{ key-down f { S+ } "END" } select-end-of-line }
485 { T{ key-down f { S+ C+ } "HOME" } select-start-of-document }
486 { T{ key-down f { S+ C+ } "END" } select-end-of-document }
489 : editor-menu ( editor -- )
497 } show-commands-menu ;
500 ! { T{ button-down f f 2 } paste-selection }
501 { T{ button-down f f 3 } editor-menu }
505 TUPLE: multiline-editor < editor ;
507 : <multiline-editor> ( -- editor )
508 multiline-editor new-editor ;
510 : previous-line ( editor -- ) line-elt editor-prev ;
512 : next-line ( editor -- ) line-elt editor-next ;
516 : page-elt ( editor -- editor element ) dup visible-lines 1 - <page-elt> ;
520 : previous-page ( editor -- ) page-elt editor-prev ;
522 : next-page ( editor -- ) page-elt editor-next ;
524 : select-previous-line ( editor -- ) line-elt editor-select-prev ;
526 : select-next-line ( editor -- ) line-elt editor-select-next ;
528 : select-previous-page ( editor -- ) page-elt editor-select-prev ;
530 : select-next-page ( editor -- ) page-elt editor-select-next ;
532 : insert-newline ( editor -- )
533 "\n" swap user-input* drop ;
535 : change-selection ( editor quot -- )
536 '[ gadget-selection @ ] [ user-input* drop ] bi ; inline
540 : join-lines ( string -- string' )
542 [ rest-slice [ [ blank? ] trim-head-slice ] map! drop ]
543 [ but-last-slice [ [ blank? ] trim-tail-slice ] map! drop ]
547 : last-line? ( document line -- ? )
548 [ last-line# ] dip = ;
550 : prev-line-and-this ( document line -- start end )
551 swap [ drop 1 - 0 2array ] [ line-end ] 2bi ;
553 : join-with-prev ( document line -- )
554 [ prev-line-and-this ] [ drop ] 2bi
555 [ join-lines ] change-doc-range ;
557 : this-line-and-next ( document line -- start end )
558 swap [ drop 0 2array ] [ [ 1 + ] dip line-end ] 2bi ;
560 : join-with-next ( document line -- )
561 [ this-line-and-next ] [ drop ] 2bi
562 [ join-lines ] change-doc-range ;
566 : com-join-lines ( editor -- )
567 dup gadget-selection?
568 [ [ join-lines ] change-selection ] [
569 [ model>> ] [ editor-caret first ] bi {
570 { [ over last-line# 0 = ] [ 2drop ] }
571 { [ 2dup last-line? ] [ join-with-prev ] }
576 multiline-editor "multiline" f {
577 { T{ key-down f f "UP" } previous-line }
578 { T{ key-down f f "DOWN" } next-line }
579 { T{ key-down f { S+ } "UP" } select-previous-line }
580 { T{ key-down f { S+ } "DOWN" } select-next-line }
581 { T{ key-down f f "PAGE_UP" } previous-page }
582 { T{ key-down f f "PAGE_DOWN" } next-page }
583 { T{ key-down f { S+ } "PAGE_UP" } select-previous-page }
584 { T{ key-down f { S+ } "PAGE_DOWN" } select-next-page }
585 { T{ key-down f f "RET" } insert-newline }
586 { T{ key-down f { S+ } "RET" } insert-newline }
587 { T{ key-down f f "ENTER" } insert-newline }
588 { T{ key-down f { C+ } "j" } com-join-lines }
591 TUPLE: source-editor < multiline-editor ;
593 : <source-editor> ( -- editor )
594 source-editor new-editor ;
597 : <element-model> ( editor element -- model )
598 [ [ caret>> ] [ model>> ] bi ] dip
599 '[ _ _ elt-string ] <arrow> ;
601 ! Fields wrap an editor
602 TUPLE: field < border editor min-cols max-cols ;
606 : field-theme ( gadget -- gadget )
609 field-border-color <solid> >>boundary ; inline
611 : <field-border> ( gadget -- border )
612 border new-border field-theme ;
616 : new-field ( class -- gadget )
617 [ <editor> ] dip new-border
618 dup gadget-child >>editor
621 ! For line-gadget-width
622 M: field font>> editor>> font>> ;
626 [ editor>> pref-dim ]
627 [ [ line-gadget-width ] [ drop second ] 2bi 2array ]
628 tri border-pref-dim ;
630 TUPLE: model-field < field field-model ;
632 : <model-field> ( model -- gadget )
633 model-field new-field
636 M: model-field graft*
637 [ [ field-model>> value>> ] [ editor>> ] bi set-editor-string ]
638 [ dup editor>> model>> add-connection ]
641 M: model-field ungraft*
642 dup editor>> model>> remove-connection ;
644 M: model-field model-changed
645 nip [ editor>> editor-string ] [ field-model>> ] bi set-model ;
647 TUPLE: action-editor < editor default-text ;
649 : <action-editor> ( -- editor )
650 action-editor new-editor ;
654 : draw-default-text? ( editor -- ? )
655 { [ default-text>> ] [ model>> doc-string empty? ] } 1&& ;
657 : draw-default-text ( editor -- )
658 [ font>> clone line-color >>foreground ]
659 [ default-text>> ] bi draw-text ;
663 M: action-editor draw-gadget*
664 dup draw-default-text? [
665 [ draw-default-text ] [ draw-caret ] bi
670 M: action-editor pref-dim*
671 dup draw-default-text? [
672 [ font>> ] [ default-text>> ] bi text-dim { 1 0 } v+
677 TUPLE: action-field < field quot ;
679 : <action-field> ( quot: ( string -- ) -- gadget )
680 action-field [ <action-editor> ] dip new-border
681 dup gadget-child >>editor
685 M: action-field default-text>> editor>> default-text>> ;
687 M: action-field default-text<< editor>> default-text<< ;
689 : invoke-action-field ( field -- )
690 [ editor>> editor-string ]
691 [ editor>> clear-editor ]
693 tri call( string -- ) ;
696 { T{ key-down f f "RET" } [ invoke-action-field ] }