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Merge branch 'obsd-master'
[tmux.git] / mode-tree.c
blobefa966dc9075e4ea6b0481061abe491a151c6213
1 /* $OpenBSD$ */
2
3 /*
4 * Copyright (c) 2017 Nicholas Marriott <nicholas.marriott@gmail.com>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19 #include <sys/types.h>
20
21 #include <ctype.h>
22 #include <stdio.h>
23 #include <stdlib.h>
24 #include <string.h>
25
26 #include "tmux.h"
27
28 enum mode_tree_search_dir {
29 MODE_TREE_SEARCH_FORWARD,
30 MODE_TREE_SEARCH_BACKWARD
31 };
32
33 struct mode_tree_item;
34 TAILQ_HEAD(mode_tree_list, mode_tree_item);
35
36 struct mode_tree_data {
37 int dead;
38 u_int references;
39 int zoomed;
40
41 struct window_pane *wp;
42 void *modedata;
43 const struct menu_item *menu;
44
45 const char **sort_list;
46 u_int sort_size;
47 struct mode_tree_sort_criteria sort_crit;
48
49 mode_tree_build_cb buildcb;
50 mode_tree_draw_cb drawcb;
51 mode_tree_search_cb searchcb;
52 mode_tree_menu_cb menucb;
53 mode_tree_height_cb heightcb;
54 mode_tree_key_cb keycb;
55
56 struct mode_tree_list children;
57 struct mode_tree_list saved;
58
59 struct mode_tree_line *line_list;
60 u_int line_size;
61
62 u_int depth;
63
64 u_int width;
65 u_int height;
66
67 u_int offset;
68 u_int current;
69
70 struct screen screen;
71
72 int preview;
73 char *search;
74 char *filter;
75 int no_matches;
76 enum mode_tree_search_dir search_dir;
77 };
78
79 struct mode_tree_item {
80 struct mode_tree_item *parent;
81 void *itemdata;
82 u_int line;
83
84 key_code key;
85 const char *keystr;
86 size_t keylen;
87
88 uint64_t tag;
89 const char *name;
90 const char *text;
91
92 int expanded;
93 int tagged;
94
95 int draw_as_parent;
96 int no_tag;
97
98 struct mode_tree_list children;
99 TAILQ_ENTRY(mode_tree_item) entry;
100 };
101
102 struct mode_tree_line {
103 struct mode_tree_item *item;
104 u_int depth;
105 int last;
106 int flat;
107 };
108
109 struct mode_tree_menu {
110 struct mode_tree_data *data;
111 struct client *c;
112 u_int line;
113 };
114
115 static void mode_tree_free_items(struct mode_tree_list *);
116
117 static const struct menu_item mode_tree_menu_items[] = {
118 { "Scroll Left", '<', NULL },
119 { "Scroll Right", '>', NULL },
120 { "", KEYC_NONE, NULL },
121 { "Cancel", 'q', NULL },
122
123 { NULL, KEYC_NONE, NULL }
124 };
125
126 static struct mode_tree_item *
127 mode_tree_find_item(struct mode_tree_list *mtl, uint64_t tag)
128 {
129 struct mode_tree_item *mti, *child;
130
131 TAILQ_FOREACH(mti, mtl, entry) {
132 if (mti->tag == tag)
133 return (mti);
134 child = mode_tree_find_item(&mti->children, tag);
135 if (child != NULL)
136 return (child);
137 }
138 return (NULL);
139 }
140
141 static void
142 mode_tree_free_item(struct mode_tree_item *mti)
143 {
144 mode_tree_free_items(&mti->children);
145
146 free((void *)mti->name);
147 free((void *)mti->text);
148 free((void *)mti->keystr);
149
150 free(mti);
151 }
152
153 static void
154 mode_tree_free_items(struct mode_tree_list *mtl)
155 {
156 struct mode_tree_item *mti, *mti1;
157
158 TAILQ_FOREACH_SAFE(mti, mtl, entry, mti1) {
159 TAILQ_REMOVE(mtl, mti, entry);
160 mode_tree_free_item(mti);
161 }
162 }
163
164 static void
165 mode_tree_check_selected(struct mode_tree_data *mtd)
166 {
167 /*
168 * If the current line would now be off screen reset the offset to the
169 * last visible line.
170 */
171 if (mtd->current > mtd->height - 1)
172 mtd->offset = mtd->current - mtd->height + 1;
173 }
174
175 static void
176 mode_tree_clear_lines(struct mode_tree_data *mtd)
177 {
178 free(mtd->line_list);
179 mtd->line_list = NULL;
180 mtd->line_size = 0;
181 }
182
183 static void
184 mode_tree_build_lines(struct mode_tree_data *mtd,
185 struct mode_tree_list *mtl, u_int depth)
186 {
187 struct mode_tree_item *mti;
188 struct mode_tree_line *line;
189 u_int i;
190 int flat = 1;
191
192 mtd->depth = depth;
193 TAILQ_FOREACH(mti, mtl, entry) {
194 mtd->line_list = xreallocarray(mtd->line_list,
195 mtd->line_size + 1, sizeof *mtd->line_list);
196
197 line = &mtd->line_list[mtd->line_size++];
198 line->item = mti;
199 line->depth = depth;
200 line->last = (mti == TAILQ_LAST(mtl, mode_tree_list));
201
202 mti->line = (mtd->line_size - 1);
203 if (!TAILQ_EMPTY(&mti->children))
204 flat = 0;
205 if (mti->expanded)
206 mode_tree_build_lines(mtd, &mti->children, depth + 1);
207
208 if (mtd->keycb != NULL) {
209 mti->key = mtd->keycb(mtd->modedata, mti->itemdata,
210 mti->line);
211 if (mti->key == KEYC_UNKNOWN)
212 mti->key = KEYC_NONE;
213 } else if (mti->line < 10)
214 mti->key = '0' + mti->line;
215 else if (mti->line < 36)
216 mti->key = KEYC_META|('a' + mti->line - 10);
217 else
218 mti->key = KEYC_NONE;
219 if (mti->key != KEYC_NONE) {
220 mti->keystr = xstrdup(key_string_lookup_key(mti->key,
221 0));
222 mti->keylen = strlen(mti->keystr);
223 } else {
224 mti->keystr = NULL;
225 mti->keylen = 0;
226 }
227 }
228 TAILQ_FOREACH(mti, mtl, entry) {
229 for (i = 0; i < mtd->line_size; i++) {
230 line = &mtd->line_list[i];
231 if (line->item == mti)
232 line->flat = flat;
233 }
234 }
235 }
236
237 static void
238 mode_tree_clear_tagged(struct mode_tree_list *mtl)
239 {
240 struct mode_tree_item *mti;
241
242 TAILQ_FOREACH(mti, mtl, entry) {
243 mti->tagged = 0;
244 mode_tree_clear_tagged(&mti->children);
245 }
246 }
247
248 void
249 mode_tree_up(struct mode_tree_data *mtd, int wrap)
250 {
251 if (mtd->current == 0) {
252 if (wrap) {
253 mtd->current = mtd->line_size - 1;
254 if (mtd->line_size >= mtd->height)
255 mtd->offset = mtd->line_size - mtd->height;
256 }
257 } else {
258 mtd->current--;
259 if (mtd->current < mtd->offset)
260 mtd->offset--;
261 }
262 }
263
264 int
265 mode_tree_down(struct mode_tree_data *mtd, int wrap)
266 {
267 if (mtd->current == mtd->line_size - 1) {
268 if (wrap) {
269 mtd->current = 0;
270 mtd->offset = 0;
271 } else
272 return (0);
273 } else {
274 mtd->current++;
275 if (mtd->current > mtd->offset + mtd->height - 1)
276 mtd->offset++;
277 }
278 return (1);
279 }
280
281 void *
282 mode_tree_get_current(struct mode_tree_data *mtd)
283 {
284 return (mtd->line_list[mtd->current].item->itemdata);
285 }
286
287 const char *
288 mode_tree_get_current_name(struct mode_tree_data *mtd)
289 {
290 return (mtd->line_list[mtd->current].item->name);
291 }
292
293 void
294 mode_tree_expand_current(struct mode_tree_data *mtd)
295 {
296 if (!mtd->line_list[mtd->current].item->expanded) {
297 mtd->line_list[mtd->current].item->expanded = 1;
298 mode_tree_build(mtd);
299 }
300 }
301
302 void
303 mode_tree_collapse_current(struct mode_tree_data *mtd)
304 {
305 if (mtd->line_list[mtd->current].item->expanded) {
306 mtd->line_list[mtd->current].item->expanded = 0;
307 mode_tree_build(mtd);
308 }
309 }
310
311 static int
312 mode_tree_get_tag(struct mode_tree_data *mtd, uint64_t tag, u_int *found)
313 {
314 u_int i;
315
316 for (i = 0; i < mtd->line_size; i++) {
317 if (mtd->line_list[i].item->tag == tag)
318 break;
319 }
320 if (i != mtd->line_size) {
321 *found = i;
322 return (1);
323 }
324 return (0);
325 }
326
327 void
328 mode_tree_expand(struct mode_tree_data *mtd, uint64_t tag)
329 {
330 u_int found;
331
332 if (!mode_tree_get_tag(mtd, tag, &found))
333 return;
334 if (!mtd->line_list[found].item->expanded) {
335 mtd->line_list[found].item->expanded = 1;
336 mode_tree_build(mtd);
337 }
338 }
339
340 int
341 mode_tree_set_current(struct mode_tree_data *mtd, uint64_t tag)
342 {
343 u_int found;
344
345 if (mode_tree_get_tag(mtd, tag, &found)) {
346 mtd->current = found;
347 if (mtd->current > mtd->height - 1)
348 mtd->offset = mtd->current - mtd->height + 1;
349 else
350 mtd->offset = 0;
351 return (1);
352 }
353 mtd->current = 0;
354 mtd->offset = 0;
355 return (0);
356 }
357
358 u_int
359 mode_tree_count_tagged(struct mode_tree_data *mtd)
360 {
361 struct mode_tree_item *mti;
362 u_int i, tagged;
363
364 tagged = 0;
365 for (i = 0; i < mtd->line_size; i++) {
366 mti = mtd->line_list[i].item;
367 if (mti->tagged)
368 tagged++;
369 }
370 return (tagged);
371 }
372
373 void
374 mode_tree_each_tagged(struct mode_tree_data *mtd, mode_tree_each_cb cb,
375 struct client *c, key_code key, int current)
376 {
377 struct mode_tree_item *mti;
378 u_int i;
379 int fired;
380
381 fired = 0;
382 for (i = 0; i < mtd->line_size; i++) {
383 mti = mtd->line_list[i].item;
384 if (mti->tagged) {
385 fired = 1;
386 cb(mtd->modedata, mti->itemdata, c, key);
387 }
388 }
389 if (!fired && current) {
390 mti = mtd->line_list[mtd->current].item;
391 cb(mtd->modedata, mti->itemdata, c, key);
392 }
393 }
394
395 struct mode_tree_data *
396 mode_tree_start(struct window_pane *wp, struct args *args,
397 mode_tree_build_cb buildcb, mode_tree_draw_cb drawcb,
398 mode_tree_search_cb searchcb, mode_tree_menu_cb menucb,
399 mode_tree_height_cb heightcb, mode_tree_key_cb keycb, void *modedata,
400 const struct menu_item *menu, const char **sort_list, u_int sort_size,
401 struct screen **s)
402 {
403 struct mode_tree_data *mtd;
404 const char *sort;
405 u_int i;
406
407 mtd = xcalloc(1, sizeof *mtd);
408 mtd->references = 1;
409
410 mtd->wp = wp;
411 mtd->modedata = modedata;
412 mtd->menu = menu;
413
414 mtd->sort_list = sort_list;
415 mtd->sort_size = sort_size;
416
417 mtd->preview = !args_has(args, 'N');
418
419 sort = args_get(args, 'O');
420 if (sort != NULL) {
421 for (i = 0; i < sort_size; i++) {
422 if (strcasecmp(sort, sort_list[i]) == 0)
423 mtd->sort_crit.field = i;
424 }
425 }
426 mtd->sort_crit.reversed = args_has(args, 'r');
427
428 if (args_has(args, 'f'))
429 mtd->filter = xstrdup(args_get(args, 'f'));
430 else
431 mtd->filter = NULL;
432
433 mtd->buildcb = buildcb;
434 mtd->drawcb = drawcb;
435 mtd->searchcb = searchcb;
436 mtd->menucb = menucb;
437 mtd->heightcb = heightcb;
438 mtd->keycb = keycb;
439
440 TAILQ_INIT(&mtd->children);
441
442 *s = &mtd->screen;
443 screen_init(*s, screen_size_x(&wp->base), screen_size_y(&wp->base), 0);
444 (*s)->mode &= ~MODE_CURSOR;
445
446 return (mtd);
447 }
448
449 void
450 mode_tree_zoom(struct mode_tree_data *mtd, struct args *args)
451 {
452 struct window_pane *wp = mtd->wp;
453
454 if (args_has(args, 'Z')) {
455 mtd->zoomed = (wp->window->flags & WINDOW_ZOOMED);
456 if (!mtd->zoomed && window_zoom(wp) == 0)
457 server_redraw_window(wp->window);
458 } else
459 mtd->zoomed = -1;
460 }
461
462 static void
463 mode_tree_set_height(struct mode_tree_data *mtd)
464 {
465 struct screen *s = &mtd->screen;
466 u_int height;
467
468 if (mtd->heightcb != NULL) {
469 height = mtd->heightcb(mtd, screen_size_y(s));
470 if (height < screen_size_y(s))
471 mtd->height = screen_size_y(s) - height;
472 } else {
473 mtd->height = (screen_size_y(s) / 3) * 2;
474 if (mtd->height > mtd->line_size)
475 mtd->height = screen_size_y(s) / 2;
476 }
477 if (mtd->height < 10)
478 mtd->height = screen_size_y(s);
479 if (screen_size_y(s) - mtd->height < 2)
480 mtd->height = screen_size_y(s);
481 }
482
483 void
484 mode_tree_build(struct mode_tree_data *mtd)
485 {
486 struct screen *s = &mtd->screen;
487 uint64_t tag;
488
489 if (mtd->line_list != NULL)
490 tag = mtd->line_list[mtd->current].item->tag;
491 else
492 tag = UINT64_MAX;
493
494 TAILQ_CONCAT(&mtd->saved, &mtd->children, entry);
495 TAILQ_INIT(&mtd->children);
496
497 mtd->buildcb(mtd->modedata, &mtd->sort_crit, &tag, mtd->filter);
498 mtd->no_matches = TAILQ_EMPTY(&mtd->children);
499 if (mtd->no_matches)
500 mtd->buildcb(mtd->modedata, &mtd->sort_crit, &tag, NULL);
501
502 mode_tree_free_items(&mtd->saved);
503 TAILQ_INIT(&mtd->saved);
504
505 mode_tree_clear_lines(mtd);
506 mode_tree_build_lines(mtd, &mtd->children, 0);
507
508 if (mtd->line_list != NULL && tag == UINT64_MAX)
509 tag = mtd->line_list[mtd->current].item->tag;
510 mode_tree_set_current(mtd, tag);
511
512 mtd->width = screen_size_x(s);
513 if (mtd->preview)
514 mode_tree_set_height(mtd);
515 else
516 mtd->height = screen_size_y(s);
517 mode_tree_check_selected(mtd);
518 }
519
520 static void
521 mode_tree_remove_ref(struct mode_tree_data *mtd)
522 {
523 if (--mtd->references == 0)
524 free(mtd);
525 }
526
527 void
528 mode_tree_free(struct mode_tree_data *mtd)
529 {
530 struct window_pane *wp = mtd->wp;
531
532 if (mtd->zoomed == 0)
533 server_unzoom_window(wp->window);
534
535 mode_tree_free_items(&mtd->children);
536 mode_tree_clear_lines(mtd);
537 screen_free(&mtd->screen);
538
539 free(mtd->search);
540 free(mtd->filter);
541
542 mtd->dead = 1;
543 mode_tree_remove_ref(mtd);
544 }
545
546 void
547 mode_tree_resize(struct mode_tree_data *mtd, u_int sx, u_int sy)
548 {
549 struct screen *s = &mtd->screen;
550
551 screen_resize(s, sx, sy, 0);
552
553 mode_tree_build(mtd);
554 mode_tree_draw(mtd);
555
556 mtd->wp->flags |= PANE_REDRAW;
557 }
558
559 struct mode_tree_item *
560 mode_tree_add(struct mode_tree_data *mtd, struct mode_tree_item *parent,
561 void *itemdata, uint64_t tag, const char *name, const char *text,
562 int expanded)
563 {
564 struct mode_tree_item *mti, *saved;
565
566 log_debug("%s: %llu, %s %s", __func__, (unsigned long long)tag,
567 name, (text == NULL ? "" : text));
568
569 mti = xcalloc(1, sizeof *mti);
570 mti->parent = parent;
571 mti->itemdata = itemdata;
572
573 mti->tag = tag;
574 mti->name = xstrdup(name);
575 if (text != NULL)
576 mti->text = xstrdup(text);
577
578 saved = mode_tree_find_item(&mtd->saved, tag);
579 if (saved != NULL) {
580 if (parent == NULL || parent->expanded)
581 mti->tagged = saved->tagged;
582 mti->expanded = saved->expanded;
583 } else if (expanded == -1)
584 mti->expanded = 1;
585 else
586 mti->expanded = expanded;
587
588 TAILQ_INIT(&mti->children);
589
590 if (parent != NULL)
591 TAILQ_INSERT_TAIL(&parent->children, mti, entry);
592 else
593 TAILQ_INSERT_TAIL(&mtd->children, mti, entry);
594
595 return (mti);
596 }
597
598 void
599 mode_tree_draw_as_parent(struct mode_tree_item *mti)
600 {
601 mti->draw_as_parent = 1;
602 }
603
604 void
605 mode_tree_no_tag(struct mode_tree_item *mti)
606 {
607 mti->no_tag = 1;
608 }
609
610 void
611 mode_tree_remove(struct mode_tree_data *mtd, struct mode_tree_item *mti)
612 {
613 struct mode_tree_item *parent = mti->parent;
614
615 if (parent != NULL)
616 TAILQ_REMOVE(&parent->children, mti, entry);
617 else
618 TAILQ_REMOVE(&mtd->children, mti, entry);
619 mode_tree_free_item(mti);
620 }
621
622 void
623 mode_tree_draw(struct mode_tree_data *mtd)
624 {
625 struct window_pane *wp = mtd->wp;
626 struct screen *s = &mtd->screen;
627 struct mode_tree_line *line;
628 struct mode_tree_item *mti;
629 struct options *oo = wp->window->options;
630 struct screen_write_ctx ctx;
631 struct grid_cell gc0, gc;
632 u_int w, h, i, j, sy, box_x, box_y, width;
633 char *text, *start, *key;
634 const char *tag, *symbol;
635 size_t size, n;
636 int keylen, pad;
637
638 if (mtd->line_size == 0)
639 return;
640
641 memcpy(&gc0, &grid_default_cell, sizeof gc0);
642 memcpy(&gc, &grid_default_cell, sizeof gc);
643 style_apply(&gc, oo, "mode-style", NULL);
644
645 w = mtd->width;
646 h = mtd->height;
647
648 screen_write_start(&ctx, s);
649 screen_write_clearscreen(&ctx, 8);
650
651 keylen = 0;
652 for (i = 0; i < mtd->line_size; i++) {
653 mti = mtd->line_list[i].item;
654 if (mti->key == KEYC_NONE)
655 continue;
656 if ((int)mti->keylen + 3 > keylen)
657 keylen = mti->keylen + 3;
658 }
659
660 for (i = 0; i < mtd->line_size; i++) {
661 if (i < mtd->offset)
662 continue;
663 if (i > mtd->offset + h - 1)
664 break;
665 line = &mtd->line_list[i];
666 mti = line->item;
667
668 screen_write_cursormove(&ctx, 0, i - mtd->offset, 0);
669
670 pad = keylen - 2 - mti->keylen;
671 if (mti->key != KEYC_NONE)
672 xasprintf(&key, "(%s)%*s", mti->keystr, pad, "");
673 else
674 key = xstrdup("");
675
676 if (line->flat)
677 symbol = "";
678 else if (TAILQ_EMPTY(&mti->children))
679 symbol = " ";
680 else if (mti->expanded)
681 symbol = "- ";
682 else
683 symbol = "+ ";
684
685 if (line->depth == 0)
686 start = xstrdup(symbol);
687 else {
688 size = (4 * line->depth) + 32;
689
690 start = xcalloc(1, size);
691 for (j = 1; j < line->depth; j++) {
692 if (mti->parent != NULL &&
693 mtd->line_list[mti->parent->line].last)
694 strlcat(start, " ", size);
695 else
696 strlcat(start, "\001x\001 ", size);
697 }
698 if (line->last)
699 strlcat(start, "\001mq\001> ", size);
700 else
701 strlcat(start, "\001tq\001> ", size);
702 strlcat(start, symbol, size);
703 }
704
705 if (mti->tagged)
706 tag = "*";
707 else
708 tag = "";
709 xasprintf(&text, "%-*s%s%s%s%s", keylen, key, start, mti->name,
710 tag, (mti->text != NULL) ? ": " : "" );
711 width = utf8_cstrwidth(text);
712 if (width > w)
713 width = w;
714 free(start);
715
716 if (mti->tagged) {
717 gc.attr ^= GRID_ATTR_BRIGHT;
718 gc0.attr ^= GRID_ATTR_BRIGHT;
719 }
720
721 if (i != mtd->current) {
722 screen_write_clearendofline(&ctx, 8);
723 screen_write_nputs(&ctx, w, &gc0, "%s", text);
724 if (mti->text != NULL) {
725 format_draw(&ctx, &gc0, w - width, mti->text,
726 NULL, 0);
727 }
728 } else {
729 screen_write_clearendofline(&ctx, gc.bg);
730 screen_write_nputs(&ctx, w, &gc, "%s", text);
731 if (mti->text != NULL) {
732 format_draw(&ctx, &gc, w - width, mti->text,
733 NULL, 0);
734 }
735 }
736 free(text);
737 free(key);
738
739 if (mti->tagged) {
740 gc.attr ^= GRID_ATTR_BRIGHT;
741 gc0.attr ^= GRID_ATTR_BRIGHT;
742 }
743 }
744
745 sy = screen_size_y(s);
746 if (!mtd->preview || sy <= 4 || h <= 4 || sy - h <= 4 || w <= 4)
747 goto done;
748
749 line = &mtd->line_list[mtd->current];
750 mti = line->item;
751 if (mti->draw_as_parent)
752 mti = mti->parent;
753
754 screen_write_cursormove(&ctx, 0, h, 0);
755 screen_write_box(&ctx, w, sy - h, BOX_LINES_DEFAULT, NULL, NULL);
756
757 if (mtd->sort_list != NULL) {
758 xasprintf(&text, " %s (sort: %s%s)", mti->name,
759 mtd->sort_list[mtd->sort_crit.field],
760 mtd->sort_crit.reversed ? ", reversed" : "");
761 } else
762 xasprintf(&text, " %s", mti->name);
763 if (w - 2 >= strlen(text)) {
764 screen_write_cursormove(&ctx, 1, h, 0);
765 screen_write_puts(&ctx, &gc0, "%s", text);
766
767 if (mtd->no_matches)
768 n = (sizeof "no matches") - 1;
769 else
770 n = (sizeof "active") - 1;
771 if (mtd->filter != NULL && w - 2 >= strlen(text) + 10 + n + 2) {
772 screen_write_puts(&ctx, &gc0, " (filter: ");
773 if (mtd->no_matches)
774 screen_write_puts(&ctx, &gc, "no matches");
775 else
776 screen_write_puts(&ctx, &gc0, "active");
777 screen_write_puts(&ctx, &gc0, ") ");
778 } else
779 screen_write_puts(&ctx, &gc0, " ");
780 }
781 free(text);
782
783 box_x = w - 4;
784 box_y = sy - h - 2;
785
786 if (box_x != 0 && box_y != 0) {
787 screen_write_cursormove(&ctx, 2, h + 1, 0);
788 mtd->drawcb(mtd->modedata, mti->itemdata, &ctx, box_x, box_y);
789 }
790
791 done:
792 screen_write_cursormove(&ctx, 0, mtd->current - mtd->offset, 0);
793 screen_write_stop(&ctx);
794 }
795
796 static struct mode_tree_item *
797 mode_tree_search_backward(struct mode_tree_data *mtd)
798 {
799 struct mode_tree_item *mti, *last, *prev;
800
801 if (mtd->search == NULL)
802 return (NULL);
803
804 mti = last = mtd->line_list[mtd->current].item;
805 for (;;) {
806 if ((prev = TAILQ_PREV(mti, mode_tree_list, entry)) != NULL) {
807 /* Point to the last child in the previous subtree. */
808 while (!TAILQ_EMPTY(&prev->children))
809 prev = TAILQ_LAST(&prev->children, mode_tree_list);
810 mti = prev;
811 } else {
812 /* If prev is NULL, jump to the parent. */
813 mti = mti->parent;
814 }
815
816 if (mti == NULL) {
817 /* Point to the last child in the last root subtree. */
818 prev = TAILQ_LAST(&mtd->children, mode_tree_list);
819 while (!TAILQ_EMPTY(&prev->children))
820 prev = TAILQ_LAST(&prev->children, mode_tree_list);
821 mti = prev;
822 }
823 if (mti == last)
824 break;
825
826 if (mtd->searchcb == NULL) {
827 if (strstr(mti->name, mtd->search) != NULL)
828 return (mti);
829 continue;
830 }
831 if (mtd->searchcb(mtd->modedata, mti->itemdata, mtd->search))
832 return (mti);
833 }
834 return (NULL);
835 }
836
837
838 static struct mode_tree_item *
839 mode_tree_search_forward(struct mode_tree_data *mtd)
840 {
841 struct mode_tree_item *mti, *last, *next;
842
843 if (mtd->search == NULL)
844 return (NULL);
845
846 mti = last = mtd->line_list[mtd->current].item;
847 for (;;) {
848 if (!TAILQ_EMPTY(&mti->children))
849 mti = TAILQ_FIRST(&mti->children);
850 else if ((next = TAILQ_NEXT(mti, entry)) != NULL)
851 mti = next;
852 else {
853 for (;;) {
854 mti = mti->parent;
855 if (mti == NULL)
856 break;
857 if ((next = TAILQ_NEXT(mti, entry)) != NULL) {
858 mti = next;
859 break;
860 }
861 }
862 }
863 if (mti == NULL)
864 mti = TAILQ_FIRST(&mtd->children);
865 if (mti == last)
866 break;
867
868 if (mtd->searchcb == NULL) {
869 if (strstr(mti->name, mtd->search) != NULL)
870 return (mti);
871 continue;
872 }
873 if (mtd->searchcb(mtd->modedata, mti->itemdata, mtd->search))
874 return (mti);
875 }
876 return (NULL);
877 }
878
879 static void
880 mode_tree_search_set(struct mode_tree_data *mtd)
881 {
882 struct mode_tree_item *mti, *loop;
883 uint64_t tag;
884
885 if (mtd->search_dir == MODE_TREE_SEARCH_FORWARD)
886 mti = mode_tree_search_forward(mtd);
887 else
888 mti = mode_tree_search_backward(mtd);
889 if (mti == NULL)
890 return;
891 tag = mti->tag;
892
893 loop = mti->parent;
894 while (loop != NULL) {
895 loop->expanded = 1;
896 loop = loop->parent;
897 }
898
899 mode_tree_build(mtd);
900 mode_tree_set_current(mtd, tag);
901 mode_tree_draw(mtd);
902 mtd->wp->flags |= PANE_REDRAW;
903 }
904
905 static int
906 mode_tree_search_callback(__unused struct client *c, void *data, const char *s,
907 __unused int done)
908 {
909 struct mode_tree_data *mtd = data;
910
911 if (mtd->dead)
912 return (0);
913
914 free(mtd->search);
915 if (s == NULL || *s == '\0') {
916 mtd->search = NULL;
917 return (0);
918 }
919 mtd->search = xstrdup(s);
920 mode_tree_search_set(mtd);
921
922 return (0);
923 }
924
925 static void
926 mode_tree_search_free(void *data)
927 {
928 mode_tree_remove_ref(data);
929 }
930
931 static int
932 mode_tree_filter_callback(__unused struct client *c, void *data, const char *s,
933 __unused int done)
934 {
935 struct mode_tree_data *mtd = data;
936
937 if (mtd->dead)
938 return (0);
939
940 if (mtd->filter != NULL)
941 free(mtd->filter);
942 if (s == NULL || *s == '\0')
943 mtd->filter = NULL;
944 else
945 mtd->filter = xstrdup(s);
946
947 mode_tree_build(mtd);
948 mode_tree_draw(mtd);
949 mtd->wp->flags |= PANE_REDRAW;
950
951 return (0);
952 }
953
954 static void
955 mode_tree_filter_free(void *data)
956 {
957 mode_tree_remove_ref(data);
958 }
959
960 static void
961 mode_tree_menu_callback(__unused struct menu *menu, __unused u_int idx,
962 key_code key, void *data)
963 {
964 struct mode_tree_menu *mtm = data;
965 struct mode_tree_data *mtd = mtm->data;
966
967 if (mtd->dead || key == KEYC_NONE)
968 goto out;
969
970 if (mtm->line >= mtd->line_size)
971 goto out;
972 mtd->current = mtm->line;
973 mtd->menucb(mtd->modedata, mtm->c, key);
974
975 out:
976 mode_tree_remove_ref(mtd);
977 free(mtm);
978 }
979
980 static void
981 mode_tree_display_menu(struct mode_tree_data *mtd, struct client *c, u_int x,
982 u_int y, int outside)
983 {
984 struct mode_tree_item *mti;
985 struct menu *menu;
986 const struct menu_item *items;
987 struct mode_tree_menu *mtm;
988 char *title;
989 u_int line;
990
991 if (mtd->offset + y > mtd->line_size - 1)
992 line = mtd->current;
993 else
994 line = mtd->offset + y;
995 mti = mtd->line_list[line].item;
996
997 if (!outside) {
998 items = mtd->menu;
999 xasprintf(&title, "#[align=centre]%s", mti->name);
1000 } else {
1001 items = mode_tree_menu_items;
1002 title = xstrdup("");
1003 }
1004 menu = menu_create(title);
1005 menu_add_items(menu, items, NULL, c, NULL);
1006 free(title);
1007
1008 mtm = xmalloc(sizeof *mtm);
1009 mtm->data = mtd;
1010 mtm->c = c;
1011 mtm->line = line;
1012 mtd->references++;
1013
1014 if (x >= (menu->width + 4) / 2)
1015 x -= (menu->width + 4) / 2;
1016 else
1017 x = 0;
1018 if (menu_display(menu, 0, 0, NULL, x, y, c, BOX_LINES_DEFAULT, NULL,
1019 NULL, NULL, NULL, mode_tree_menu_callback, mtm) != 0)
1020 menu_free(menu);
1021 }
1022
1023 int
1024 mode_tree_key(struct mode_tree_data *mtd, struct client *c, key_code *key,
1025 struct mouse_event *m, u_int *xp, u_int *yp)
1026 {
1027 struct mode_tree_line *line;
1028 struct mode_tree_item *current, *parent, *mti;
1029 u_int i, x, y;
1030 int choice;
1031
1032 if (KEYC_IS_MOUSE(*key) && m != NULL) {
1033 if (cmd_mouse_at(mtd->wp, m, &x, &y, 0) != 0) {
1034 *key = KEYC_NONE;
1035 return (0);
1036 }
1037 if (xp != NULL)
1038 *xp = x;
1039 if (yp != NULL)
1040 *yp = y;
1041 if (x > mtd->width || y > mtd->height) {
1042 if (*key == KEYC_MOUSEDOWN3_PANE)
1043 mode_tree_display_menu(mtd, c, x, y, 1);
1044 if (!mtd->preview)
1045 *key = KEYC_NONE;
1046 return (0);
1047 }
1048 if (mtd->offset + y < mtd->line_size) {
1049 if (*key == KEYC_MOUSEDOWN1_PANE ||
1050 *key == KEYC_MOUSEDOWN3_PANE ||
1051 *key == KEYC_DOUBLECLICK1_PANE)
1052 mtd->current = mtd->offset + y;
1053 if (*key == KEYC_DOUBLECLICK1_PANE)
1054 *key = '\r';
1055 else {
1056 if (*key == KEYC_MOUSEDOWN3_PANE)
1057 mode_tree_display_menu(mtd, c, x, y, 0);
1058 *key = KEYC_NONE;
1059 }
1060 } else {
1061 if (*key == KEYC_MOUSEDOWN3_PANE)
1062 mode_tree_display_menu(mtd, c, x, y, 0);
1063 *key = KEYC_NONE;
1064 }
1065 return (0);
1066 }
1067
1068 line = &mtd->line_list[mtd->current];
1069 current = line->item;
1070
1071 choice = -1;
1072 for (i = 0; i < mtd->line_size; i++) {
1073 if (*key == mtd->line_list[i].item->key) {
1074 choice = i;
1075 break;
1076 }
1077 }
1078 if (choice != -1) {
1079 if ((u_int)choice > mtd->line_size - 1) {
1080 *key = KEYC_NONE;
1081 return (0);
1082 }
1083 mtd->current = choice;
1084 *key = '\r';
1085 return (0);
1086 }
1087
1088 switch (*key) {
1089 case 'q':
1090 case '\033': /* Escape */
1091 case 'g'|KEYC_CTRL:
1092 return (1);
1093 case KEYC_UP:
1094 case 'k':
1095 case KEYC_WHEELUP_PANE:
1096 case 'p'|KEYC_CTRL:
1097 mode_tree_up(mtd, 1);
1098 break;
1099 case KEYC_DOWN:
1100 case 'j':
1101 case KEYC_WHEELDOWN_PANE:
1102 case 'n'|KEYC_CTRL:
1103 mode_tree_down(mtd, 1);
1104 break;
1105 case KEYC_PPAGE:
1106 case 'b'|KEYC_CTRL:
1107 for (i = 0; i < mtd->height; i++) {
1108 if (mtd->current == 0)
1109 break;
1110 mode_tree_up(mtd, 1);
1111 }
1112 break;
1113 case KEYC_NPAGE:
1114 case 'f'|KEYC_CTRL:
1115 for (i = 0; i < mtd->height; i++) {
1116 if (mtd->current == mtd->line_size - 1)
1117 break;
1118 mode_tree_down(mtd, 1);
1119 }
1120 break;
1121 case 'g':
1122 case KEYC_HOME:
1123 mtd->current = 0;
1124 mtd->offset = 0;
1125 break;
1126 case 'G':
1127 case KEYC_END:
1128 mtd->current = mtd->line_size - 1;
1129 if (mtd->current > mtd->height - 1)
1130 mtd->offset = mtd->current - mtd->height + 1;
1131 else
1132 mtd->offset = 0;
1133 break;
1134 case 't':
1135 /*
1136 * Do not allow parents and children to both be tagged: untag
1137 * all parents and children of current.
1138 */
1139 if (current->no_tag)
1140 break;
1141 if (!current->tagged) {
1142 parent = current->parent;
1143 while (parent != NULL) {
1144 parent->tagged = 0;
1145 parent = parent->parent;
1146 }
1147 mode_tree_clear_tagged(&current->children);
1148 current->tagged = 1;
1149 } else
1150 current->tagged = 0;
1151 if (m != NULL)
1152 mode_tree_down(mtd, 0);
1153 break;
1154 case 'T':
1155 for (i = 0; i < mtd->line_size; i++)
1156 mtd->line_list[i].item->tagged = 0;
1157 break;
1158 case 't'|KEYC_CTRL:
1159 for (i = 0; i < mtd->line_size; i++) {
1160 if ((mtd->line_list[i].item->parent == NULL &&
1161 !mtd->line_list[i].item->no_tag) ||
1162 (mtd->line_list[i].item->parent != NULL &&
1163 mtd->line_list[i].item->parent->no_tag))
1164 mtd->line_list[i].item->tagged = 1;
1165 else
1166 mtd->line_list[i].item->tagged = 0;
1167 }
1168 break;
1169 case 'O':
1170 mtd->sort_crit.field++;
1171 if (mtd->sort_crit.field >= mtd->sort_size)
1172 mtd->sort_crit.field = 0;
1173 mode_tree_build(mtd);
1174 break;
1175 case 'r':
1176 mtd->sort_crit.reversed = !mtd->sort_crit.reversed;
1177 mode_tree_build(mtd);
1178 break;
1179 case KEYC_LEFT:
1180 case 'h':
1181 case '-':
1182 if (line->flat || !current->expanded)
1183 current = current->parent;
1184 if (current == NULL)
1185 mode_tree_up(mtd, 0);
1186 else {
1187 current->expanded = 0;
1188 mtd->current = current->line;
1189 mode_tree_build(mtd);
1190 }
1191 break;
1192 case KEYC_RIGHT:
1193 case 'l':
1194 case '+':
1195 if (line->flat || current->expanded)
1196 mode_tree_down(mtd, 0);
1197 else if (!line->flat) {
1198 current->expanded = 1;
1199 mode_tree_build(mtd);
1200 }
1201 break;
1202 case '-'|KEYC_META:
1203 TAILQ_FOREACH(mti, &mtd->children, entry)
1204 mti->expanded = 0;
1205 mode_tree_build(mtd);
1206 break;
1207 case '+'|KEYC_META:
1208 TAILQ_FOREACH(mti, &mtd->children, entry)
1209 mti->expanded = 1;
1210 mode_tree_build(mtd);
1211 break;
1212 case '?':
1213 case '/':
1214 case 's'|KEYC_CTRL:
1215 mtd->references++;
1216 status_prompt_set(c, NULL, "(search) ", "",
1217 mode_tree_search_callback, mode_tree_search_free, mtd,
1218 PROMPT_NOFORMAT, PROMPT_TYPE_SEARCH);
1219 break;
1220 case 'n':
1221 mtd->search_dir = MODE_TREE_SEARCH_FORWARD;
1222 mode_tree_search_set(mtd);
1223 break;
1224 case 'N':
1225 mtd->search_dir = MODE_TREE_SEARCH_BACKWARD;
1226 mode_tree_search_set(mtd);
1227 break;
1228 case 'f':
1229 mtd->references++;
1230 status_prompt_set(c, NULL, "(filter) ", mtd->filter,
1231 mode_tree_filter_callback, mode_tree_filter_free, mtd,
1232 PROMPT_NOFORMAT, PROMPT_TYPE_SEARCH);
1233 break;
1234 case 'v':
1235 mtd->preview = !mtd->preview;
1236 mode_tree_build(mtd);
1237 if (mtd->preview)
1238 mode_tree_check_selected(mtd);
1239 break;
1240 }
1241 return (0);
1242 }
1243
1244 void
1245 mode_tree_run_command(struct client *c, struct cmd_find_state *fs,
1246 const char *template, const char *name)
1247 {
1248 struct cmdq_state *state;
1249 char *command, *error;
1250 enum cmd_parse_status status;
1251
1252 command = cmd_template_replace(template, name, 1);
1253 if (command != NULL && *command != '\0') {
1254 state = cmdq_new_state(fs, NULL, 0);
1255 status = cmd_parse_and_append(command, NULL, c, state, &error);
1256 if (status == CMD_PARSE_ERROR) {
1257 if (c != NULL) {
1258 *error = toupper((u_char)*error);
1259 status_message_set(c, -1, 1, 0, "%s", error);
1260 }
1261 free(error);
1262 }
1263 cmdq_free_state(state);
1264 }
1265 free(command);
1266 }
tmux -- terminal multiplexer similar to GNU Screen