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 COLOR: red >>caret-color
29 monospace-font >>font ; inline
33 : new-editor ( class -- editor )
39 : <editor> ( -- editor )
44 : activate-editor-model ( editor model -- )
46 [ nip activate-model ]
47 [ swap model>> add-loc ] 2tri ;
49 : deactivate-editor-model ( editor model -- )
51 [ nip deactivate-model ]
52 [ swap model>> remove-loc ] 2tri ;
54 : blink-caret ( editor -- )
55 [ not ] change-blink relayout-1 ;
57 SYMBOL: blink-interval
59 750 milliseconds blink-interval set-global
61 : stop-blinking ( editor -- )
62 blink-timer>> [ stop-timer ] when* ;
64 : start-blinking ( editor -- )
66 blink-timer>> [ restart-timer ] when* ;
68 : restart-blinking ( editor -- )
78 [ dup caret>> activate-editor-model ]
79 [ dup mark>> activate-editor-model ]
82 '[ _ blink-caret ] blink-interval get dup <timer>
87 [ [ stop-blinking ] [ f >>blink-timer drop ] bi ]
88 [ dup caret>> deactivate-editor-model ]
89 [ dup mark>> deactivate-editor-model ] tri ;
91 : editor-caret ( editor -- loc ) caret>> value>> ;
93 : editor-mark ( editor -- loc ) mark>> value>> ;
95 : set-caret ( loc editor -- )
96 [ model>> validate-loc ] [ caret>> ] bi set-model ;
98 : change-caret ( editor quot: ( loc document -- newloc ) -- )
99 [ [ [ editor-caret ] [ model>> ] bi ] dip call ] [ drop ] 2bi
102 : mark>caret ( editor -- )
103 [ editor-caret ] [ mark>> ] bi set-model ;
105 : change-caret&mark ( editor quot: ( loc document -- newloc ) -- )
106 [ change-caret ] [ drop mark>caret ] 2bi ; inline
108 : editor-line ( n editor -- str ) control-value nth ;
110 :: point>loc ( point editor -- loc )
111 point second editor y>line {
112 { [ dup 0 < ] [ drop { 0 0 } ] }
113 { [ dup editor model>> last-line# > ] [ drop editor model>> doc-end ] }
123 : clicked-loc ( editor -- loc )
124 [ hand-rel ] keep point>loc ;
126 : click-loc ( editor model -- )
127 [ clicked-loc ] dip set-model ;
129 : focus-editor ( editor -- )
130 [ start-blinking ] [ t >>focused? relayout-1 ] bi ;
132 : unfocus-editor ( editor -- )
133 [ stop-blinking ] [ f >>focused? relayout-1 ] bi ;
135 : loc>x ( loc editor -- x )
136 [ first2 swap ] dip [ editor-line ] [ font>> ] bi swap offset>x round ;
138 : loc>point ( loc editor -- loc )
139 [ loc>x ] [ [ first ] dip line>y ceiling ] 2bi 2array ;
141 : caret-loc ( editor -- loc )
142 [ editor-caret ] keep loc>point ;
144 : caret-dim ( editor -- dim )
145 [ 0 ] dip line-height 2array ;
147 : scroll>caret ( editor -- )
148 dup graft-state>> second [
150 [ caret-loc ] [ caret-dim { 2 1 } v+ ] bi <rect>
156 : draw-caret? ( editor -- ? )
157 { [ focused?>> ] [ blink>> ] } 1&& ;
159 : draw-caret ( editor -- )
161 [ caret-color>> gl-color ]
163 [ caret-loc ] [ caret-dim ] bi
168 : selection-start/end ( editor -- start end )
169 [ editor-mark ] [ editor-caret ] bi sort-pair ;
171 SYMBOL: selected-lines
173 TUPLE: selected-line start end first? last? ;
175 : compute-selection ( editor -- assoc )
176 dup gadget-selection? [
177 [ selection-start/end [ [ first ] bi@ [a,b] ] [ ] 2bi ]
179 '[ [ _ _ ] [ _ start/end-on-line ] bi 2array ] H{ } map>assoc
182 :: draw-selection ( line pair editor -- )
183 pair [ editor font>> line offset>x ] map :> pair
184 editor selection-color>> gl-color
186 pair second pair first - round 1 max editor line-height 2array
189 : draw-unselected-line ( line editor -- )
190 font>> swap draw-text ;
192 : draw-selected-line ( line pair editor -- )
194 [ nip draw-unselected-line ] [ draw-selection ] 3bi
198 [ [ first2 ] [ selection-color>> ] bi* <selection> ]
199 [ draw-unselected-line ] bi
203 : draw-default-text? ( editor -- ? )
204 { [ default-text>> ] [ model>> doc-string empty? ] } 1&& ;
206 : draw-default-text ( editor -- )
207 [ font>> clone line-color >>foreground ]
208 [ default-text>> ] bi draw-text ;
212 M: editor draw-line ( line index editor -- )
213 [ selected-lines get at ] dip over
214 [ draw-selected-line ] [ nip draw-unselected-line ] if ;
216 M: editor draw-gadget*
217 dup draw-default-text? [
218 [ draw-default-text ] [ draw-caret ] bi
220 dup compute-selection selected-lines [
221 [ draw-lines ] [ draw-caret ] bi
226 ! Add some space for the caret.
227 [ font>> ] keep dup draw-default-text?
228 [ default-text>> ] [ control-value ] if
229 text-dim { 1 0 } v+ ;
231 M: editor baseline font>> font-metrics ascent>> ;
233 M: editor cap-height font>> font-metrics cap-height>> ;
237 : contents-changed ( model editor -- )
238 [ [ nip caret>> ] [ drop ] 2bi '[ _ validate-loc ] (change-model) ]
239 [ [ nip mark>> ] [ drop ] 2bi '[ _ validate-loc ] (change-model) ]
240 [ nip relayout ] 2tri ;
242 : caret/mark-changed ( editor -- )
243 [ restart-blinking ] keep scroll>caret ;
247 M: editor model-changed
249 { [ 2dup model>> eq? ] [ contents-changed ] }
250 { [ 2dup caret>> eq? ] [ nip caret/mark-changed ] }
251 { [ 2dup mark>> eq? ] [ nip caret/mark-changed ] }
254 M: editor gadget-selection?
255 selection-start/end = not ;
257 M: editor gadget-selection
258 [ selection-start/end ] [ model>> ] bi doc-range ;
260 : remove-selection ( editor -- )
261 [ selection-start/end ] [ model>> ] bi remove-doc-range ;
263 M: editor user-input*
264 [ selection-start/end ] [ model>> ] bi set-doc-range t ;
266 : editor-string ( editor -- string )
269 : set-editor-string ( string editor -- )
270 model>> set-doc-string ;
272 M: editor gadget-text* editor-string % ;
274 : extend-selection ( editor -- )
277 [ dup caret>> click-loc ] tri ;
279 : mouse-elt ( -- element )
283 } at one-line-elt or ;
285 : drag-direction? ( loc editor -- ? )
286 editor-mark before? ;
288 : drag-selection-caret ( loc editor element -- loc )
290 [ drag-direction? ] [ model>> ] 2bi
291 ] dip prev/next-elt ? ;
293 : drag-selection-mark ( loc editor element -- loc )
295 [ drag-direction? not ]
298 ] dip prev/next-elt ? ;
300 : drag-caret&mark ( editor -- caret mark )
301 [ clicked-loc ] [ mouse-elt ] bi
302 [ drag-selection-caret ]
303 [ drag-selection-mark ] 3bi ;
305 : drag-selection ( editor -- )
308 [ caret>> set-model ] tri ;
310 : editor-cut ( editor clipboard -- )
311 [ gadget-copy ] [ drop remove-selection ] 2bi ;
313 : delete/backspace ( editor quot -- )
314 over gadget-selection? [
315 drop remove-selection
317 [ [ [ editor-caret ] [ model>> ] bi ] dip call ]
322 : editor-delete ( editor elt -- )
323 '[ dupd _ next-elt ] delete/backspace ;
325 : editor-backspace ( editor elt -- )
326 '[ over [ _ prev-elt ] dip ] delete/backspace ;
328 : editor-select-prev ( editor elt -- )
329 '[ _ prev-elt ] change-caret ;
331 : editor-prev ( editor elt -- )
332 [ editor-select-prev ] [ drop mark>caret ] 2bi ;
334 : editor-select-next ( editor elt -- )
335 '[ _ next-elt ] change-caret ;
337 : editor-next ( editor elt -- )
338 dupd editor-select-next mark>caret ;
340 : editor-select ( from to editor -- )
341 [ mark>> set-model ] [ caret>> set-model ] bi-curry bi* ;
343 : select-elt ( editor elt -- )
344 [ [ [ editor-caret ] [ model>> ] bi ] dip prev/next-elt ] [ drop ] 2bi
347 : start-of-document ( editor -- ) doc-elt editor-prev ;
349 : end-of-document ( editor -- ) doc-elt editor-next ;
351 : position-caret ( editor -- )
352 mouse-elt dup one-char-elt =
353 [ drop dup extend-selection dup mark>> click-loc ]
356 : delete-previous-character ( editor -- )
357 char-elt editor-backspace ;
359 : delete-next-character ( editor -- )
360 char-elt editor-delete ;
362 : delete-previous-word ( editor -- )
363 word-elt editor-backspace ;
365 : delete-next-word ( editor -- )
366 word-elt editor-delete ;
368 : delete-to-start-of-line ( editor -- )
369 one-line-elt editor-backspace ;
371 : delete-to-end-of-line ( editor -- )
372 one-line-elt editor-delete ;
374 : delete-to-start-of-document ( editor -- )
375 doc-elt editor-delete ;
377 : delete-to-end-of-document ( editor -- )
378 doc-elt editor-delete ;
380 : com-undo ( editor -- ) model>> undo ;
382 : com-redo ( editor -- ) model>> redo ;
385 { undo-action com-undo }
386 { redo-action com-redo }
387 { T{ key-down f f "DELETE" } delete-next-character }
388 { T{ key-down f f "BACKSPACE" } delete-previous-character }
389 { T{ key-down f { S+ } "BACKSPACE" } delete-previous-character }
390 { T{ key-down f { C+ } "DELETE" } delete-next-word }
391 { T{ key-down f { C+ } "BACKSPACE" } delete-previous-word }
392 { T{ key-down f { A+ } "DELETE" } delete-to-end-of-line }
393 { T{ key-down f { A+ } "BACKSPACE" } delete-to-start-of-line }
396 : com-paste ( editor -- ) clipboard get paste-clipboard ;
398 : paste-selection ( editor -- ) ui.clipboards:selection get paste-clipboard ;
400 : com-cut ( editor -- ) clipboard get editor-cut ;
402 editor "clipboard" f {
403 { cut-action com-cut }
404 { copy-action com-copy }
405 { paste-action com-paste }
406 { T{ button-up } com-copy-selection }
407 { T{ button-up f f 2 } paste-selection }
410 : previous-character ( editor -- )
411 dup gadget-selection? [
412 dup selection-start/end drop
413 over set-caret mark>caret
418 : next-character ( editor -- )
419 dup gadget-selection? [
420 dup selection-start/end nip
421 over set-caret mark>caret
426 : previous-word ( editor -- ) word-elt editor-prev ;
428 : next-word ( editor -- ) word-elt editor-next ;
430 : start-of-line ( editor -- ) one-line-elt editor-prev ;
432 : end-of-line ( editor -- ) one-line-elt editor-next ;
434 editor "caret-motion" f {
435 { T{ button-down } position-caret }
436 { T{ key-down f f "LEFT" } previous-character }
437 { T{ key-down f f "RIGHT" } next-character }
438 { T{ key-down f { C+ } "LEFT" } previous-word }
439 { T{ key-down f { C+ } "RIGHT" } next-word }
440 { T{ key-down f f "HOME" } start-of-line }
441 { T{ key-down f f "END" } end-of-line }
442 { T{ key-down f { C+ } "HOME" } start-of-document }
443 { T{ key-down f { C+ } "END" } end-of-document }
446 : clear-editor ( editor -- )
449 : select-all ( editor -- ) doc-elt select-elt ;
451 : select-line ( editor -- ) one-line-elt select-elt ;
453 : select-word ( editor -- ) one-word-elt select-elt ;
455 : selected-token ( editor -- string )
456 dup gadget-selection?
457 [ dup select-word ] unless
460 : select-previous-character ( editor -- )
461 char-elt editor-select-prev ;
463 : select-next-character ( editor -- )
464 char-elt editor-select-next ;
466 : select-previous-word ( editor -- )
467 word-elt editor-select-prev ;
469 : select-next-word ( editor -- )
470 word-elt editor-select-next ;
472 : select-start-of-line ( editor -- )
473 one-line-elt editor-select-prev ;
475 : select-end-of-line ( editor -- )
476 one-line-elt editor-select-next ;
478 : select-start-of-document ( editor -- )
479 doc-elt editor-select-prev ;
481 : select-end-of-document ( editor -- )
482 doc-elt editor-select-next ;
484 editor "selection" f {
485 { T{ button-down f { S+ } 1 } extend-selection }
486 { T{ button-up f { S+ } 1 } com-copy-selection }
487 { T{ drag { # 1 } } drag-selection }
488 { gain-focus focus-editor }
489 { lose-focus unfocus-editor }
490 { delete-action remove-selection }
491 { select-all-action select-all }
492 { T{ key-down f { C+ } "l" } select-line }
493 { T{ key-down f { S+ } "LEFT" } select-previous-character }
494 { T{ key-down f { S+ } "RIGHT" } select-next-character }
495 { T{ key-down f { S+ C+ } "LEFT" } select-previous-word }
496 { T{ key-down f { S+ C+ } "RIGHT" } select-next-word }
497 { T{ key-down f { S+ } "HOME" } select-start-of-line }
498 { T{ key-down f { S+ } "END" } select-end-of-line }
499 { T{ key-down f { S+ C+ } "HOME" } select-start-of-document }
500 { T{ key-down f { S+ C+ } "END" } select-end-of-document }
503 : editor-menu ( editor -- )
511 } show-commands-menu ;
514 ! { T{ button-down f f 2 } paste-selection }
515 { T{ button-down f f 3 } editor-menu }
519 TUPLE: multiline-editor < editor ;
521 : <multiline-editor> ( -- editor )
522 multiline-editor new-editor ;
524 : previous-line ( editor -- ) line-elt editor-prev ;
526 : next-line ( editor -- ) line-elt editor-next ;
530 : page-elt ( editor -- editor element ) dup visible-lines 1 - <page-elt> ;
534 : previous-page ( editor -- ) page-elt editor-prev ;
536 : next-page ( editor -- ) page-elt editor-next ;
538 : select-previous-line ( editor -- ) line-elt editor-select-prev ;
540 : select-next-line ( editor -- ) line-elt editor-select-next ;
542 : select-previous-page ( editor -- ) page-elt editor-select-prev ;
544 : select-next-page ( editor -- ) page-elt editor-select-next ;
546 : insert-newline ( editor -- )
547 "\n" swap user-input* drop ;
549 : change-selection ( editor quot -- )
550 '[ gadget-selection @ ] [ user-input* drop ] bi ; inline
554 : join-lines ( string -- string' )
556 [ rest-slice [ [ blank? ] trim-head-slice ] map! drop ]
557 [ but-last-slice [ [ blank? ] trim-tail-slice ] map! drop ]
561 : last-line? ( document line -- ? )
562 [ last-line# ] dip = ;
564 : prev-line-and-this ( document line -- start end )
565 swap [ drop 1 - 0 2array ] [ line-end ] 2bi ;
567 : join-with-prev ( document line -- )
568 [ prev-line-and-this ] [ drop ] 2bi
569 [ join-lines ] change-doc-range ;
571 : this-line-and-next ( document line -- start end )
572 swap [ drop 0 2array ] [ [ 1 + ] dip line-end ] 2bi ;
574 : join-with-next ( document line -- )
575 [ this-line-and-next ] [ drop ] 2bi
576 [ join-lines ] change-doc-range ;
580 : com-join-lines ( editor -- )
581 dup gadget-selection?
582 [ [ join-lines ] change-selection ] [
583 [ model>> ] [ editor-caret first ] bi {
584 { [ over last-line# 0 = ] [ 2drop ] }
585 { [ 2dup last-line? ] [ join-with-prev ] }
590 multiline-editor "multiline" f {
591 { T{ key-down f f "UP" } previous-line }
592 { T{ key-down f f "DOWN" } next-line }
593 { T{ key-down f { S+ } "UP" } select-previous-line }
594 { T{ key-down f { S+ } "DOWN" } select-next-line }
595 { T{ key-down f f "PAGE_UP" } previous-page }
596 { T{ key-down f f "PAGE_DOWN" } next-page }
597 { T{ key-down f { S+ } "PAGE_UP" } select-previous-page }
598 { T{ key-down f { S+ } "PAGE_DOWN" } select-next-page }
599 { T{ key-down f f "RET" } insert-newline }
600 { T{ key-down f { S+ } "RET" } insert-newline }
601 { T{ key-down f f "ENTER" } insert-newline }
602 { T{ key-down f { C+ } "j" } com-join-lines }
605 TUPLE: source-editor < multiline-editor ;
607 : <source-editor> ( -- editor )
608 source-editor new-editor ;
611 : <element-model> ( editor element -- model )
612 [ [ caret>> ] [ model>> ] bi ] dip
613 '[ _ _ elt-string ] <arrow> ;
615 ! Fields wrap an editor
616 TUPLE: field < border editor min-cols max-cols ;
620 : field-theme ( gadget -- gadget )
623 field-border-color <solid> >>boundary ; inline
625 : <field-border> ( gadget -- border )
626 border new-border field-theme ;
630 : new-field ( class -- gadget )
631 [ <editor> ] dip new-border
632 dup gadget-child >>editor
635 ! For line-gadget-width
636 M: field font>> editor>> font>> ;
640 [ editor>> pref-dim ]
641 [ [ line-gadget-width ] [ drop second ] 2bi 2array ]
642 tri border-pref-dim ;
644 M: field default-text>> editor>> default-text>> ;
646 M: field default-text<< editor>> default-text<< ;
648 TUPLE: model-field < field field-model ;
650 : <model-field> ( model -- gadget )
651 model-field new-field
654 M: model-field graft*
655 [ [ field-model>> value>> ] [ editor>> ] bi set-editor-string ]
656 [ dup editor>> model>> add-connection ]
659 M: model-field ungraft*
660 dup editor>> model>> remove-connection ;
662 M: model-field model-changed
663 nip [ editor>> editor-string ] [ field-model>> ] bi set-model ;
665 TUPLE: action-field < field quot ;
667 : <action-field> ( quot: ( string -- ) -- gadget )
668 action-field [ <editor> ] dip new-border
669 dup gadget-child >>editor
673 : invoke-action-field ( field -- )
674 [ editor>> editor-string ]
675 [ editor>> clear-editor ]
677 tri call( string -- ) ;
680 { T{ key-down f f "RET" } [ invoke-action-field ] }