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 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 timers ui.baseline-alignment ui.clipboards
9 ui.commands ui.gadgets ui.gadgets.borders
10 ui.gadgets.line-support ui.gadgets.menus ui.gadgets.scrollers
11 ui.gadgets.theme ui.gestures ui.pens.solid ui.render ui.text
13 EXCLUDE: fonts => selection ;
14 IN: ui.gadgets.editors
16 TUPLE: editor < line-gadget
19 focused? blink blink-timer ;
23 : <loc> ( -- loc ) { 0 0 } <model> ;
25 : init-editor-locs ( editor -- editor )
29 : editor-theme ( editor -- editor )
30 COLOR: red >>caret-color
31 monospace-font >>font ; inline
35 : new-editor ( class -- editor )
41 : <editor> ( -- editor )
46 : activate-editor-model ( editor model -- )
48 [ nip activate-model ]
49 [ swap model>> add-loc ] 2tri ;
51 : deactivate-editor-model ( editor model -- )
53 [ nip deactivate-model ]
54 [ swap model>> remove-loc ] 2tri ;
56 : blink-caret ( editor -- )
57 [ not ] change-blink relayout-1 ;
59 SYMBOL: blink-interval
61 750 milliseconds blink-interval set-global
63 : stop-blinking ( editor -- )
64 blink-timer>> [ stop-timer ] when* ;
66 : start-blinking ( editor -- )
68 blink-timer>> [ restart-timer ] when* ;
70 : restart-blinking ( editor -- )
80 [ dup caret>> activate-editor-model ]
81 [ dup mark>> activate-editor-model ]
84 '[ _ blink-caret ] blink-interval get dup <timer>
89 [ [ stop-blinking ] [ f >>blink-timer drop ] bi ]
90 [ dup caret>> deactivate-editor-model ]
91 [ dup mark>> deactivate-editor-model ] tri ;
93 : editor-caret ( editor -- loc ) caret>> value>> ;
95 : editor-mark ( editor -- loc ) mark>> value>> ;
97 : set-caret ( loc editor -- )
98 [ model>> validate-loc ] [ caret>> ] bi set-model ;
100 : change-caret ( editor quot: ( loc document -- newloc ) -- )
101 [ [ [ editor-caret ] [ model>> ] bi ] dip call ] [ drop ] 2bi
104 : mark>caret ( editor -- )
105 [ editor-caret ] [ mark>> ] bi set-model ;
107 : change-caret&mark ( editor quot: ( loc document -- newloc ) -- )
108 [ change-caret ] [ drop mark>caret ] 2bi ; inline
110 : editor-line ( n editor -- str ) control-value nth ;
112 :: point>loc ( point editor -- loc )
113 point second editor y>line {
114 { [ dup 0 < ] [ drop { 0 0 } ] }
115 { [ dup editor model>> last-line# > ] [ drop editor model>> doc-end ] }
125 : clicked-loc ( editor -- loc )
126 [ hand-rel ] keep point>loc ;
128 : click-loc ( editor model -- )
129 [ clicked-loc ] dip set-model ;
131 : focus-editor ( editor -- )
132 [ start-blinking ] [ t >>focused? relayout-1 ] bi ;
134 : unfocus-editor ( editor -- )
135 [ stop-blinking ] [ f >>focused? relayout-1 ] bi ;
137 : loc>x ( loc editor -- x )
138 [ first2 swap ] dip [ editor-line ] [ font>> ] bi swap offset>x round ;
140 : loc>point ( loc editor -- loc )
141 [ loc>x ] [ [ first ] dip line>y ceiling ] 2bi 2array ;
143 : caret-loc ( editor -- loc )
144 [ editor-caret ] keep loc>point ;
146 : caret-dim ( editor -- dim )
147 [ 0 ] dip line-height 2array ;
149 : scroll>caret ( editor -- )
150 dup graft-state>> second [
152 [ caret-loc ] [ caret-dim { 2 1 } v+ ] bi <rect>
158 : draw-caret? ( editor -- ? )
159 { [ focused?>> ] [ blink>> ] } 1&& ;
161 : draw-caret ( editor -- )
163 [ caret-color>> gl-color ]
165 [ caret-loc ] [ caret-dim ] bi
170 : selection-start/end ( editor -- start end )
171 [ editor-mark ] [ editor-caret ] bi sort-pair ;
173 SYMBOL: selected-lines
175 TUPLE: selected-line start end first? last? ;
177 : compute-selection ( editor -- assoc )
178 dup gadget-selection? [
179 [ selection-start/end [ [ first ] bi@ [a,b] ] [ ] 2bi ]
181 '[ [ _ _ ] [ _ start/end-on-line ] bi 2array ] H{ } map>assoc
184 :: draw-selection ( line pair editor -- )
185 pair [ editor font>> line offset>x ] map :> pair
186 editor selection-color>> gl-color
188 pair second pair first - round 1 max editor line-height 2array
191 : draw-unselected-line ( line editor -- )
192 font>> swap draw-text ;
194 : draw-selected-line ( line pair editor -- )
196 [ nip draw-unselected-line ] [ draw-selection ] 3bi
200 [ [ first2 ] [ selection-color>> ] bi* <selection> ]
201 [ draw-unselected-line ] bi
207 M: editor draw-line ( line index editor -- )
208 [ selected-lines get at ] dip over
209 [ draw-selected-line ] [ nip draw-unselected-line ] if ;
211 M: editor draw-gadget*
212 dup compute-selection selected-lines [
213 [ draw-lines ] [ draw-caret ] bi
217 ! Add some space for the caret.
218 [ font>> ] [ control-value ] bi text-dim { 1 0 } v+ ;
220 M: editor baseline font>> font-metrics ascent>> ;
222 M: editor cap-height font>> font-metrics cap-height>> ;
226 : contents-changed ( model editor -- )
227 [ [ nip caret>> ] [ drop ] 2bi '[ _ validate-loc ] (change-model) ]
228 [ [ nip mark>> ] [ drop ] 2bi '[ _ validate-loc ] (change-model) ]
229 [ nip relayout ] 2tri ;
231 : caret/mark-changed ( editor -- )
232 [ restart-blinking ] keep scroll>caret ;
236 M: editor model-changed
238 { [ 2dup model>> eq? ] [ contents-changed ] }
239 { [ 2dup caret>> eq? ] [ nip caret/mark-changed ] }
240 { [ 2dup mark>> eq? ] [ nip caret/mark-changed ] }
243 M: editor gadget-selection?
244 selection-start/end = not ;
246 M: editor gadget-selection
247 [ selection-start/end ] [ model>> ] bi doc-range ;
249 : remove-selection ( editor -- )
250 [ selection-start/end ] [ model>> ] bi remove-doc-range ;
252 M: editor user-input*
253 [ selection-start/end ] [ model>> ] bi set-doc-range t ;
255 : editor-string ( editor -- string )
258 : set-editor-string ( string editor -- )
259 model>> set-doc-string ;
261 M: editor gadget-text* editor-string % ;
263 : extend-selection ( editor -- )
266 [ dup caret>> click-loc ] tri ;
268 : mouse-elt ( -- element )
272 } at one-line-elt or ;
274 : drag-direction? ( loc editor -- ? )
275 editor-mark before? ;
277 : drag-selection-caret ( loc editor element -- loc )
279 [ drag-direction? ] [ model>> ] 2bi
280 ] dip prev/next-elt ? ;
282 : drag-selection-mark ( loc editor element -- loc )
284 [ drag-direction? not ]
287 ] dip prev/next-elt ? ;
289 : drag-caret&mark ( editor -- caret mark )
290 [ clicked-loc ] [ mouse-elt ] bi
291 [ drag-selection-caret ]
292 [ drag-selection-mark ] 3bi ;
294 : drag-selection ( editor -- )
297 [ caret>> set-model ] tri ;
299 : editor-cut ( editor clipboard -- )
300 [ gadget-copy ] [ drop remove-selection ] 2bi ;
302 : delete/backspace ( editor quot -- )
303 over gadget-selection? [
304 drop remove-selection
306 [ [ [ editor-caret ] [ model>> ] bi ] dip call ]
311 : editor-delete ( editor elt -- )
312 '[ dupd _ next-elt ] delete/backspace ;
314 : editor-backspace ( editor elt -- )
315 '[ over [ _ prev-elt ] dip ] delete/backspace ;
317 : editor-select-prev ( editor elt -- )
318 '[ _ prev-elt ] change-caret ;
320 : editor-prev ( editor elt -- )
321 [ editor-select-prev ] [ drop mark>caret ] 2bi ;
323 : editor-select-next ( editor elt -- )
324 '[ _ next-elt ] change-caret ;
326 : editor-next ( editor elt -- )
327 dupd editor-select-next mark>caret ;
329 : editor-select ( from to editor -- )
330 [ mark>> set-model ] [ caret>> set-model ] bi-curry bi* ;
332 : select-elt ( editor elt -- )
333 [ [ [ editor-caret ] [ model>> ] bi ] dip prev/next-elt ] [ drop ] 2bi
336 : start-of-document ( editor -- ) doc-elt editor-prev ;
338 : end-of-document ( editor -- ) doc-elt editor-next ;
340 : position-caret ( editor -- )
341 mouse-elt dup one-char-elt =
342 [ drop dup extend-selection dup mark>> click-loc ]
345 : delete-previous-character ( editor -- )
346 char-elt editor-backspace ;
348 : delete-next-character ( editor -- )
349 char-elt editor-delete ;
351 : delete-previous-word ( editor -- )
352 word-elt editor-backspace ;
354 : delete-next-word ( editor -- )
355 word-elt editor-delete ;
357 : delete-to-start-of-line ( editor -- )
358 one-line-elt editor-backspace ;
360 : delete-to-end-of-line ( editor -- )
361 one-line-elt editor-delete ;
363 : delete-to-start-of-document ( editor -- )
364 doc-elt editor-delete ;
366 : delete-to-end-of-document ( editor -- )
367 doc-elt editor-delete ;
369 : com-undo ( editor -- ) model>> undo ;
371 : com-redo ( editor -- ) model>> redo ;
374 { undo-action com-undo }
375 { redo-action com-redo }
376 { T{ key-down f f "DELETE" } delete-next-character }
377 { T{ key-down f f "BACKSPACE" } delete-previous-character }
378 { T{ key-down f { S+ } "BACKSPACE" } delete-previous-character }
379 { T{ key-down f { C+ } "DELETE" } delete-next-word }
380 { T{ key-down f { C+ } "BACKSPACE" } delete-previous-word }
381 { T{ key-down f { A+ } "DELETE" } delete-to-end-of-line }
382 { T{ key-down f { A+ } "BACKSPACE" } delete-to-start-of-line }
385 : com-paste ( editor -- ) clipboard get paste-clipboard ;
387 : paste-selection ( editor -- ) selection get paste-clipboard ;
389 : com-cut ( editor -- ) clipboard get editor-cut ;
391 editor "clipboard" f {
392 { cut-action com-cut }
393 { copy-action com-copy }
394 { paste-action com-paste }
395 { T{ button-up } com-copy-selection }
396 { T{ button-up f f 2 } paste-selection }
399 : previous-character ( editor -- )
400 dup gadget-selection? [
401 dup selection-start/end drop
402 over set-caret mark>caret
407 : next-character ( editor -- )
408 dup gadget-selection? [
409 dup selection-start/end nip
410 over set-caret mark>caret
415 : previous-word ( editor -- ) word-elt editor-prev ;
417 : next-word ( editor -- ) word-elt editor-next ;
419 : start-of-line ( editor -- ) one-line-elt editor-prev ;
421 : end-of-line ( editor -- ) one-line-elt editor-next ;
423 editor "caret-motion" f {
424 { T{ button-down } position-caret }
425 { T{ key-down f f "LEFT" } previous-character }
426 { T{ key-down f f "RIGHT" } next-character }
427 { T{ key-down f { C+ } "LEFT" } previous-word }
428 { T{ key-down f { C+ } "RIGHT" } next-word }
429 { T{ key-down f f "HOME" } start-of-line }
430 { T{ key-down f f "END" } end-of-line }
431 { T{ key-down f { C+ } "HOME" } start-of-document }
432 { T{ key-down f { C+ } "END" } end-of-document }
435 : clear-editor ( editor -- )
438 : select-all ( editor -- ) doc-elt select-elt ;
440 : select-line ( editor -- ) one-line-elt select-elt ;
442 : select-word ( editor -- ) one-word-elt select-elt ;
444 : selected-token ( editor -- string )
445 dup gadget-selection?
446 [ dup select-word ] unless
449 : select-previous-character ( editor -- )
450 char-elt editor-select-prev ;
452 : select-next-character ( editor -- )
453 char-elt editor-select-next ;
455 : select-previous-word ( editor -- )
456 word-elt editor-select-prev ;
458 : select-next-word ( editor -- )
459 word-elt editor-select-next ;
461 : select-start-of-line ( editor -- )
462 one-line-elt editor-select-prev ;
464 : select-end-of-line ( editor -- )
465 one-line-elt editor-select-next ;
467 : select-start-of-document ( editor -- )
468 doc-elt editor-select-prev ;
470 : select-end-of-document ( editor -- )
471 doc-elt editor-select-next ;
473 editor "selection" f {
474 { T{ button-down f { S+ } 1 } extend-selection }
475 { T{ button-up f { S+ } 1 } com-copy-selection }
476 { T{ drag { # 1 } } drag-selection }
477 { gain-focus focus-editor }
478 { lose-focus unfocus-editor }
479 { delete-action remove-selection }
480 { select-all-action select-all }
481 { T{ key-down f { C+ } "l" } select-line }
482 { T{ key-down f { S+ } "LEFT" } select-previous-character }
483 { T{ key-down f { S+ } "RIGHT" } select-next-character }
484 { T{ key-down f { S+ C+ } "LEFT" } select-previous-word }
485 { T{ key-down f { S+ C+ } "RIGHT" } select-next-word }
486 { T{ key-down f { S+ } "HOME" } select-start-of-line }
487 { T{ key-down f { S+ } "END" } select-end-of-line }
488 { T{ key-down f { S+ C+ } "HOME" } select-start-of-document }
489 { T{ key-down f { S+ C+ } "END" } select-end-of-document }
492 : editor-menu ( editor -- )
500 } show-commands-menu ;
503 ! { T{ button-down f f 2 } paste-selection }
504 { T{ button-down f f 3 } editor-menu }
508 TUPLE: multiline-editor < editor ;
510 : <multiline-editor> ( -- editor )
511 multiline-editor new-editor ;
513 : previous-line ( editor -- ) line-elt editor-prev ;
515 : next-line ( editor -- ) line-elt editor-next ;
519 : page-elt ( editor -- editor element ) dup visible-lines 1 - <page-elt> ;
523 : previous-page ( editor -- ) page-elt editor-prev ;
525 : next-page ( editor -- ) page-elt editor-next ;
527 : select-previous-line ( editor -- ) line-elt editor-select-prev ;
529 : select-next-line ( editor -- ) line-elt editor-select-next ;
531 : select-previous-page ( editor -- ) page-elt editor-select-prev ;
533 : select-next-page ( editor -- ) page-elt editor-select-next ;
535 : insert-newline ( editor -- )
536 "\n" swap user-input* drop ;
538 : change-selection ( editor quot -- )
539 '[ gadget-selection @ ] [ user-input* drop ] bi ; inline
543 : join-lines ( string -- string' )
545 [ rest-slice [ [ blank? ] trim-head-slice ] map! drop ]
546 [ but-last-slice [ [ blank? ] trim-tail-slice ] map! drop ]
550 : last-line? ( document line -- ? )
551 [ last-line# ] dip = ;
553 : prev-line-and-this ( document line -- start end )
554 swap [ drop 1 - 0 2array ] [ line-end ] 2bi ;
556 : join-with-prev ( document line -- )
557 [ prev-line-and-this ] [ drop ] 2bi
558 [ join-lines ] change-doc-range ;
560 : this-line-and-next ( document line -- start end )
561 swap [ drop 0 2array ] [ [ 1 + ] dip line-end ] 2bi ;
563 : join-with-next ( document line -- )
564 [ this-line-and-next ] [ drop ] 2bi
565 [ join-lines ] change-doc-range ;
569 : com-join-lines ( editor -- )
570 dup gadget-selection?
571 [ [ join-lines ] change-selection ] [
572 [ model>> ] [ editor-caret first ] bi {
573 { [ over last-line# 0 = ] [ 2drop ] }
574 { [ 2dup last-line? ] [ join-with-prev ] }
579 multiline-editor "multiline" f {
580 { T{ key-down f f "UP" } previous-line }
581 { T{ key-down f f "DOWN" } next-line }
582 { T{ key-down f { S+ } "UP" } select-previous-line }
583 { T{ key-down f { S+ } "DOWN" } select-next-line }
584 { T{ key-down f f "PAGE_UP" } previous-page }
585 { T{ key-down f f "PAGE_DOWN" } next-page }
586 { T{ key-down f { S+ } "PAGE_UP" } select-previous-page }
587 { T{ key-down f { S+ } "PAGE_DOWN" } select-next-page }
588 { T{ key-down f f "RET" } insert-newline }
589 { T{ key-down f { S+ } "RET" } insert-newline }
590 { T{ key-down f f "ENTER" } insert-newline }
591 { T{ key-down f { C+ } "j" } com-join-lines }
594 TUPLE: source-editor < multiline-editor ;
596 : <source-editor> ( -- editor )
597 source-editor new-editor ;
600 : <element-model> ( editor element -- model )
601 [ [ caret>> ] [ model>> ] bi ] dip
602 '[ _ _ elt-string ] <arrow> ;
604 ! Fields wrap an editor
605 TUPLE: field < border editor min-cols max-cols ;
609 : field-theme ( gadget -- gadget )
612 COLOR: gray <solid> >>boundary ; inline
614 : <field-border> ( gadget -- border )
615 border new-border field-theme ;
619 : new-field ( class -- gadget )
620 [ <editor> ] dip new-border
621 dup gadget-child >>editor
624 ! For line-gadget-width
625 M: field font>> editor>> font>> ;
629 [ editor>> pref-dim ]
630 [ [ line-gadget-width ] [ drop second ] 2bi 2array ]
631 tri border-pref-dim ;
633 TUPLE: model-field < field field-model ;
635 : <model-field> ( model -- gadget )
636 model-field new-field
639 M: model-field graft*
640 [ [ field-model>> value>> ] [ editor>> ] bi set-editor-string ]
641 [ dup editor>> model>> add-connection ]
644 M: model-field ungraft*
645 dup editor>> model>> remove-connection ;
647 M: model-field model-changed
648 nip [ editor>> editor-string ] [ field-model>> ] bi set-model ;
650 TUPLE: action-editor < editor default-text ;
652 : <action-editor> ( -- editor )
653 action-editor new-editor ;
657 : draw-default-text? ( editor -- ? )
658 { [ default-text>> ] [ model>> doc-string empty? ] } 1&& ;
660 : draw-default-text ( editor -- )
661 [ font>> clone line-color >>foreground ]
662 [ default-text>> ] bi draw-text ;
666 M: action-editor draw-gadget*
667 dup draw-default-text? [
668 [ draw-default-text ] [ draw-caret ] bi
673 TUPLE: action-field < field quot ;
675 : <action-field> ( quot: ( string -- ) -- gadget )
676 action-field [ <action-editor> ] dip new-border
677 dup gadget-child >>editor
681 M: action-field default-text>> editor>> default-text>> ;
683 M: action-field default-text<< editor>> default-text<< ;
685 : invoke-action-field ( field -- )
686 [ editor>> editor-string ]
687 [ editor>> clear-editor ]
689 tri call( string -- ) ;
692 { T{ key-down f f "RET" } [ invoke-action-field ] }