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Date:: Sat Jul 24 07:02:10 2021 UTC
Message:: drop {eecmd,ir}_self_insert in favour of sensible_self_insert
Actions:: History | Blame | Raw File
1 /*
2  * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
3  *
4  * Permission to use, copy, modify, and distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 
17 #include "compat.h"
18 
19 #include <limits.h>
20 #include <stdlib.h>
21 #include <string.h>
22 
23 #include "compl.h"
24 #include "defaults.h"
25 #include "minibuffer.h"
26 #include "telescope.h"
27 #include "ui.h"
28 #include "utf8.h"
29 
30 #define GUARD_RECURSIVE_MINIBUFFER()				\
31 	do {							\
32 		if (in_minibuffer) {				\
33 			message("enable-recursive-minibuffers " \
34 			    "is not yet available.");		\
35 			return;					\
36 		}						\
37 	} while(0)
38 
39 #define GUARD_READ_ONLY()				\
40 	do {						\
41 		if (!in_minibuffer) {			\
42 			message("text is read-only");	\
43 			return;				\
44 		}					\
45 	} while(0)
46 
47 /* return 1 if moved, 0 otherwise */
48 static inline int
49 forward_line(struct buffer *buffer, int n)
50 {
51 	struct vline *vl;
52 	int did;
53 
54 	if (buffer->current_line == NULL)
55 		return 0;
56 	vl = buffer->current_line;
57 
58 	did = 0;
59 	while (n != 0) {
60 		if (n > 0) {
61 			vl = TAILQ_NEXT(vl, vlines);
62 			if (vl == NULL)
63 				return did;
64 			if (vl->parent->flags & L_HIDDEN)
65 				continue;
66 			buffer->current_line = vl;
67 			n--;
68 		} else {
69 			vl = TAILQ_PREV(vl, vhead, vlines);
70 			if (vl == NULL)
71 				return did;
72 			if (vl->parent->flags & L_HIDDEN)
73 				continue;
74 			if (buffer->current_line == buffer->top_line) {
75 				buffer->line_off--;
76 				buffer->top_line = vl;
77 			}
78 			buffer->current_line = vl;
79 			n++;
80 		}
81 
82 		did = 1;
83 	}
84 
85 	return did;
86 }
87 
88 void
89 cmd_previous_line(struct buffer *buffer)
90 {
91 	forward_line(buffer, -1);
92 }
93 
94 void
95 cmd_next_line(struct buffer *buffer)
96 {
97 	forward_line(buffer, +1);
98 }
99 
100 void
101 cmd_backward_char(struct buffer *buffer)
102 {
103 	if (buffer->cpoff != 0)
104 		buffer->cpoff--;
105 }
106 
107 void
108 cmd_forward_char(struct buffer *buffer)
109 {
110 	size_t len = 0;
111 
112 	if (buffer->current_line == NULL)
113 		return;
114 
115 	if (buffer->current_line->line != NULL)
116 		len = utf8_cplen(buffer->current_line->line);
117 	if (++buffer->cpoff > len)
118 		buffer->cpoff = len;
119 }
120 
121 void
122 cmd_backward_paragraph(struct buffer *buffer)
123 {
124 	do {
125 		if (!forward_line(buffer, -1)) {
126 			message("No previous paragraph");
127 			return;
128 		}
129 	} while (buffer->current_line->line != NULL ||
130 	    buffer->current_line->parent->type != LINE_TEXT);
131 }
132 
133 void
134 cmd_forward_paragraph(struct buffer *buffer)
135 {
136 	do {
137 		if (!forward_line(buffer, +1)) {
138 			message("No next paragraph");
139 			return;
140 		}
141 	} while (buffer->current_line->line != NULL ||
142 	    buffer->current_line->parent->type != LINE_TEXT);
143 }
144 
145 void
146 cmd_move_beginning_of_line(struct buffer *buffer)
147 {
148 	buffer->cpoff = 0;
149 }
150 
151 void
152 cmd_move_end_of_line(struct buffer *buffer)
153 {
154 	struct vline	*vl;
155 
156 	vl = buffer->current_line;
157 	if (vl == NULL || vl->line == NULL)
158 		return;
159 	buffer->cpoff = utf8_cplen(vl->line);
160 }
161 
162 void
163 cmd_redraw(struct buffer *buffer)
164 {
165         ui_schedule_redraw();
166 }
167 
168 void
169 cmd_scroll_line_up(struct buffer *buffer)
170 {
171 	struct vline	*vl;
172 
173 	if ((vl = TAILQ_PREV(buffer->top_line, vhead, vlines))
174 	    == NULL)
175 		return;
176 
177 	forward_line(buffer, -1);
178 	buffer->line_off--;
179 	buffer->top_line = vl;
180 }
181 
182 void
183 cmd_scroll_line_down(struct buffer *buffer)
184 {
185 	if (!forward_line(buffer, +1))
186 		return;
187 
188 	buffer->top_line = TAILQ_NEXT(buffer->top_line, vlines);
189 	buffer->line_off++;
190 }
191 
192 void
193 cmd_scroll_up(struct buffer *buffer)
194 {
195 	struct vline	*vl;
196 	int		 i;
197 
198 	for (i = 0; i < body_lines; ++i) {
199 		vl = TAILQ_PREV(buffer->top_line, vhead, vlines);
200 		if (vl == NULL)
201 			break;
202 		buffer->line_off--;
203 		buffer->top_line = vl;
204 		forward_line(buffer, -1);
205 	}
206 }
207 
208 void
209 cmd_scroll_down(struct buffer *buffer)
210 {
211 	int i;
212 
213 	for (i = 0; i < body_lines; ++i) {
214 		if (!forward_line(buffer, +1))
215 			break;
216 
217 		buffer->top_line = TAILQ_NEXT(buffer->top_line,
218 		    vlines);
219 		buffer->line_off++;
220 	}
221 }
222 
223 void
224 cmd_beginning_of_buffer(struct buffer *buffer)
225 {
226 	buffer->current_line = TAILQ_FIRST(&buffer->head);
227 	buffer->cpoff = 0;
228 	buffer->top_line = buffer->current_line;
229 	buffer->line_off = 0;
230 }
231 
232 void
233 cmd_end_of_buffer(struct buffer *buffer)
234 {
235 	buffer->current_line = TAILQ_LAST(&buffer->head, vhead);
236 
237 	if (buffer->current_line == NULL)
238 		return;
239 
240 	/* deal with invisible lines */
241 	if (buffer->current_line->parent->flags & L_HIDDEN)
242 		forward_line(buffer, -1);
243 
244 	cmd_move_end_of_line(buffer);
245 }
246 
247 void
248 cmd_kill_telescope(struct buffer *buffer)
249 {
250 	save_session();
251 	event_loopbreak();
252 }
253 
254 void
255 cmd_push_button(struct buffer *buffer)
256 {
257 	struct vline	*vl;
258 	struct line	*l;
259 
260 	vl = buffer->current_line;
261 
262 	if (vl == NULL)
263 		return;
264 
265 	switch (vl->parent->type) {
266 	case LINE_LINK:
267 		load_url_in_tab(current_tab, vl->parent->alt, NULL);
268 		break;
269 	case LINE_PRE_START:
270 		l = TAILQ_NEXT(vl->parent, lines);
271 		for (; l != NULL; l = TAILQ_NEXT(l, lines)) {
272 			if (l->type == LINE_PRE_END)
273 				break;
274 			l->flags ^= L_HIDDEN;
275 			if (l->flags & L_HIDDEN)
276 				buffer->line_max--;
277 			else
278 				buffer->line_max++;
279 		}
280 		break;
281 	default:
282 		break;
283 	}
284 }
285 
286 void
287 cmd_push_button_new_tab(struct buffer *buffer)
288 {
289 	struct vline	*vl;
290 
291 	vl = buffer->current_line;
292 	if (vl == NULL || vl->parent->type != LINE_LINK)
293 		return;
294 
295 	new_tab(vl->parent->alt, current_tab->hist_cur->h);
296 }
297 
298 void
299 cmd_previous_button(struct buffer *buffer)
300 {
301 	struct excursion place;
302 
303 	save_excursion(&place, buffer);
304 
305 	do {
306 		if (!forward_line(buffer, -1)) {
307 			restore_excursion(&place, buffer);
308 			message("No previous link");
309 			return;
310 		}
311 	} while (buffer->current_line->parent->type != LINE_LINK);
312 }
313 
314 void
315 cmd_next_button(struct buffer *buffer)
316 {
317 	struct excursion place;
318 
319 	save_excursion(&place, buffer);
320 
321 	do {
322 		if (!forward_line(buffer, +1)){
323 			restore_excursion(&place, buffer);
324 			message("No next link");
325 			return;
326 		}
327 	} while (buffer->current_line->parent->type != LINE_LINK);
328 }
329 
330 static inline int
331 is_heading(const struct line *l)
332 {
333 	return l->type == LINE_TITLE_1 ||
334 		l->type == LINE_TITLE_2 ||
335 		l->type == LINE_TITLE_3;
336 }
337 
338 void
339 cmd_previous_heading(struct buffer *buffer)
340 {
341 	struct excursion place;
342 
343 	save_excursion(&place, buffer);
344 
345 	do {
346 		if (!forward_line(buffer, -1)) {
347 			restore_excursion(&place, buffer);
348 			message("No previous heading");
349 			return;
350 		}
351 	} while (!is_heading(buffer->current_line->parent));
352 }
353 
354 void
355 cmd_next_heading(struct buffer *buffer)
356 {
357 	struct excursion place;
358 
359 	save_excursion(&place, buffer);
360 
361 	do {
362 		if (!forward_line(buffer, +1)) {
363 			restore_excursion(&place, buffer);
364 			message("No next heading");
365 			return;
366 		}
367 	} while (!is_heading(buffer->current_line->parent));
368 }
369 
370 void
371 cmd_previous_page(struct buffer *buffer)
372 {
373 	if (!load_previous_page(current_tab))
374 		message("No previous page");
375 	else
376 		start_loading_anim(current_tab);
377 }
378 
379 void
380 cmd_next_page(struct buffer *buffer)
381 {
382 	if (!load_next_page(current_tab))
383 		message("No next page");
384 	else
385 		start_loading_anim(current_tab);
386 }
387 
388 void
389 cmd_clear_minibuf(struct buffer *buffer)
390 {
391         message(NULL);
392 }
393 
394 void
395 cmd_execute_extended_command(struct buffer *buffer)
396 {
397 	size_t	 len;
398 
399 	GUARD_RECURSIVE_MINIBUFFER();
400 
401 	enter_minibuffer(sensible_self_insert, eecmd_select, exit_minibuffer,
402 	    &eecmd_history, compl_eecmd, NULL);
403 
404 	len = sizeof(ministate.prompt);
405 	strlcpy(ministate.prompt, "", len);
406 
407 	if (thiskey.meta)
408 		strlcat(ministate.prompt, "M-", len);
409 
410 	strlcat(ministate.prompt, ui_keyname(thiskey.key), len);
411 
412 	if (thiskey.meta)
413 		strlcat(ministate.prompt, " ", len);
414 }
415 
416 void
417 cmd_tab_close(struct buffer *buffer)
418 {
419 	struct tab *tab, *t;
420 
421 	tab = current_tab;
422 
423 	if ((t = TAILQ_NEXT(tab, tabs)) != NULL ||
424 	    (t = TAILQ_PREV(tab, tabshead, tabs)) != NULL) {
425 		switch_to_tab(t);
426 		free_tab(tab);
427 	} else
428 		message("Can't close the only tab.");
429 
430 }
431 
432 void
433 cmd_tab_close_other(struct buffer *buffer)
434 {
435 	struct tab *t, *i;
436 
437 	TAILQ_FOREACH_SAFE(t, &tabshead, tabs, i) {
438 		if (t == current_tab)
439 			continue;
440 
441 		free_tab(t);
442 	}
443 }
444 
445 void
446 cmd_tab_new(struct buffer *buffer)
447 {
448 	const char *url;
449 
450 	if ((url = new_tab_url) == NULL)
451 		url = NEW_TAB_URL;
452 
453 	new_tab(url, NULL);
454 }
455 
456 void
457 cmd_tab_next(struct buffer *buffer)
458 {
459 	struct tab *t;
460 
461 	if ((t = TAILQ_NEXT(current_tab, tabs)) == NULL)
462 		t = TAILQ_FIRST(&tabshead);
463 	switch_to_tab(t);
464 }
465 
466 void
467 cmd_tab_previous(struct buffer *buffer)
468 {
469 	struct tab *t;
470 
471 	if ((t = TAILQ_PREV(current_tab, tabshead, tabs)) == NULL)
472 		t = TAILQ_LAST(&tabshead, tabshead);
473 	switch_to_tab(t);
474 }
475 
476 void
477 cmd_tab_move(struct buffer *buffer)
478 {
479 	struct tab *t;
480 
481 	t = TAILQ_NEXT(current_tab, tabs);
482 	TAILQ_REMOVE(&tabshead, current_tab, tabs);
483 
484 	if (t == NULL)
485 		TAILQ_INSERT_HEAD(&tabshead, current_tab, tabs);
486 	else
487 		TAILQ_INSERT_AFTER(&tabshead, t, current_tab, tabs);
488 }
489 
490 void
491 cmd_tab_move_to(struct buffer *buffer)
492 {
493 	struct tab *t;
494 
495 	t = TAILQ_PREV(current_tab, tabshead, tabs);
496 	TAILQ_REMOVE(&tabshead, current_tab, tabs);
497 
498 	if (t == NULL) {
499 		if (TAILQ_EMPTY(&tabshead))
500 			TAILQ_INSERT_HEAD(&tabshead, current_tab, tabs);
501 		else
502 			TAILQ_INSERT_TAIL(&tabshead, current_tab, tabs);
503 	} else
504 		TAILQ_INSERT_BEFORE(t, current_tab, tabs);
505 }
506 
507 void
508 cmd_tab_select(struct buffer *buffer)
509 {
510 	GUARD_RECURSIVE_MINIBUFFER();
511 
512 	enter_minibuffer(sensible_self_insert, ts_select, exit_minibuffer,
513 	    NULL, compl_ts, NULL);
514 	strlcpy(ministate.prompt, "Select tab: ", sizeof(ministate.prompt));
515 }
516 
517 void
518 cmd_load_url(struct buffer *buffer)
519 {
520 	GUARD_RECURSIVE_MINIBUFFER();
521 
522 	enter_minibuffer(sensible_self_insert, lu_select, exit_minibuffer,
523 	    &lu_history, NULL, NULL);
524 	strlcpy(ministate.prompt, "Load URL: ", sizeof(ministate.prompt));
525 	strlcpy(ministate.buf, "gemini://", sizeof(ministate.buf));
526 	cmd_move_end_of_line(&ministate.buffer);
527 }
528 
529 void
530 cmd_load_current_url(struct buffer *buffer)
531 {
532 	GUARD_RECURSIVE_MINIBUFFER();
533 
534 	enter_minibuffer(sensible_self_insert, lu_select, exit_minibuffer,
535 	    &lu_history, NULL, NULL);
536 	strlcpy(ministate.prompt, "Load URL: ", sizeof(ministate.prompt));
537 	strlcpy(ministate.buf, current_tab->hist_cur->h, sizeof(ministate.buf));
538 	ministate.buffer.cpoff = utf8_cplen(ministate.buf);
539 }
540 
541 void
542 cmd_reload_page(struct buffer *buffer)
543 {
544 	load_url_in_tab(current_tab, current_tab->hist_cur->h, NULL);
545 }
546 
547 void
548 cmd_bookmark_page(struct buffer *buffer)
549 {
550 	GUARD_RECURSIVE_MINIBUFFER();
551 
552 	enter_minibuffer(sensible_self_insert, bp_select, exit_minibuffer, NULL,
553 	    NULL, NULL);
554 	strlcpy(ministate.prompt, "Bookmark URL: ", sizeof(ministate.prompt));
555 	strlcpy(ministate.buf, current_tab->hist_cur->h, sizeof(ministate.buf));
556 	ministate.buffer.cpoff = utf8_cplen(ministate.buf);
557 }
558 
559 void
560 cmd_list_bookmarks(struct buffer *buffer)
561 {
562 	load_url_in_tab(current_tab, "about:bookmarks", NULL);
563 }
564 
565 void
566 cmd_toggle_help(struct buffer *buffer)
567 {
568 	ui_toggle_side_window();
569 }
570 
571 void
572 cmd_link_select(struct buffer *buffer)
573 {
574 	struct line *l;
575 
576 	GUARD_RECURSIVE_MINIBUFFER();
577 
578 	l = TAILQ_FIRST(&buffer->page.head);
579 	while (l != NULL && l->type != LINE_LINK)
580 		l = TAILQ_NEXT(l, lines);
581 
582 	if (l == NULL) {
583 		message("No links found");
584 		return;
585 	}
586 
587 	enter_minibuffer(sensible_self_insert, ls_select, exit_minibuffer,
588 	    NULL, compl_ls, l);
589 	strlcpy(ministate.prompt, "Select link: ", sizeof(ministate.prompt));
590 }
591 
592 void
593 cmd_swiper(struct buffer *buffer)
594 {
595 	GUARD_RECURSIVE_MINIBUFFER();
596 
597 	enter_minibuffer(sensible_self_insert, swiper_select, exit_minibuffer,
598 	    NULL, compl_swiper, TAILQ_FIRST(&buffer->page.head));
599 	strlcpy(ministate.prompt, "Select line: ", sizeof(ministate.prompt));
600 }
601 
602 void
603 cmd_toc(struct buffer *buffer)
604 {
605 	struct line *l;
606 
607 	GUARD_RECURSIVE_MINIBUFFER();
608 
609 	l = TAILQ_FIRST(&buffer->page.head);
610 	while (l != NULL &&
611 	    l->type != LINE_TITLE_1 &&
612 	    l->type != LINE_TITLE_2 &&
613 	    l->type != LINE_TITLE_3)
614 		l = TAILQ_NEXT(l, lines);
615 
616 	if (l == NULL) {
617 		message("No headings found");
618 		return;
619 	}
620 
621 	enter_minibuffer(sensible_self_insert, toc_select, exit_minibuffer,
622 	    NULL, compl_toc, l);
623 	strlcpy(ministate.prompt, "Select heading: ",
624 	    sizeof(ministate.prompt));
625 }
626 
627 void
628 cmd_inc_fill_column(struct buffer *buffer)
629 {
630 	if (fill_column == INT_MAX)
631 		return;
632 
633 	fill_column += 2;
634 	message("fill-column: %d", fill_column);
635 
636 	ui_schedule_redraw();
637 }
638 
639 void
640 cmd_dec_fill_column(struct buffer *buffer)
641 {
642 	if (fill_column == INT_MAX || fill_column < 8)
643 		return;
644 
645 	fill_column -= 2;
646 	message("fill-column: %d", fill_column);
647 
648 	ui_schedule_redraw();
649 }
650 
651 void
652 cmd_olivetti_mode(struct buffer *buffer)
653 {
654 	olivetti_mode = !olivetti_mode;
655 	if (olivetti_mode)
656 		message("olivetti-mode enabled");
657 	else
658 		message("olivetti-mode disabled");
659 
660 	ui_schedule_redraw();
661 }
662 
663 void
664 cmd_mini_delete_char(struct buffer *buffer)
665 {
666 	char *c, *n;
667 
668 	GUARD_READ_ONLY();
669 
670 	minibuffer_taint_hist();
671 
672 	c = utf8_nth(buffer->current_line->line, buffer->cpoff);
673 	if (*c == '\0')
674 		return;
675 	n = utf8_next_cp(c);
676 
677 	memmove(c, n, strlen(n)+1);
678 
679 	recompute_completions(0);
680 }
681 
682 void
683 cmd_mini_delete_backward_char(struct buffer *buffer)
684 {
685 	char *c, *p, *start;
686 
687 	GUARD_READ_ONLY();
688 
689 	minibuffer_taint_hist();
690 
691 	c = utf8_nth(buffer->current_line->line, buffer->cpoff);
692 	start = buffer->current_line->line;
693 	if (c == start)
694 		return;
695 	p = utf8_prev_cp(c-1, start);
696 
697 	memmove(p, c, strlen(c)+1);
698 	buffer->cpoff--;
699 
700 	recompute_completions(0);
701 }
702 
703 void
704 cmd_mini_kill_line(struct buffer *buffer)
705 {
706 	char *c;
707 
708 	GUARD_READ_ONLY();
709 
710 	minibuffer_taint_hist();
711 	c = utf8_nth(buffer->current_line->line, buffer->cpoff);
712 	*c = '\0';
713 
714 	recompute_completions(0);
715 }
716 
717 void
718 cmd_mini_abort(struct buffer *buffer)
719 {
720 	if (!in_minibuffer)
721 		return;
722 
723 	ministate.abortfn();
724 }
725 
726 void
727 cmd_mini_complete_and_exit(struct buffer *buffer)
728 {
729 	if (!in_minibuffer)
730 		return;
731 
732 	minibuffer_taint_hist();
733 	ministate.donefn();
734 }
735 
736 void
737 cmd_mini_previous_history_element(struct buffer *buffer)
738 {
739 	if (ministate.history == NULL) {
740 		message("No history");
741 		return;
742 	}
743 
744 	if (ministate.hist_cur == NULL ||
745 	    (ministate.hist_cur = TAILQ_PREV(ministate.hist_cur, mhisthead, entries)) == NULL) {
746 		ministate.hist_cur = TAILQ_LAST(&ministate.history->head, mhisthead);
747 		ministate.hist_off = ministate.history->len - 1;
748 		if (ministate.hist_cur == NULL)
749 			message("No prev history item");
750 	} else {
751 		ministate.hist_off--;
752 	}
753 
754 	if (ministate.hist_cur != NULL)
755 		buffer->current_line->line = ministate.hist_cur->h;
756 }
757 
758 void
759 cmd_mini_next_history_element(struct buffer *buffer)
760 {
761 	if (ministate.history == NULL) {
762 		message("No history");
763 		return;
764 	}
765 
766 	if (ministate.hist_cur == NULL ||
767 	    (ministate.hist_cur = TAILQ_NEXT(ministate.hist_cur, entries)) == NULL) {
768 		ministate.hist_cur = TAILQ_FIRST(&ministate.history->head);
769 		ministate.hist_off = 0;
770 		if (ministate.hist_cur == NULL)
771 			message("No next history item");
772 	} else {
773 		ministate.hist_off++;
774 	}
775 
776 	if (ministate.hist_cur != NULL)
777 		buffer->current_line->line = ministate.hist_cur->h;
778 }
779 
780 void
781 cmd_previous_completion(struct buffer *buffer)
782 {
783 	if (in_minibuffer != MB_COMPREAD)
784 		return;
785 
786 	buffer = &ministate.compl.buffer;
787 
788 	if (buffer->current_line != NULL)
789 		buffer->current_line->parent->type = LINE_COMPL;
790 
791 	forward_line(buffer, -1);
792 
793 	if (buffer->current_line != NULL)
794 		buffer->current_line->parent->type = LINE_COMPL_CURRENT;
795 }
796 
797 void
798 cmd_next_completion(struct buffer *buffer)
799 {
800 	if (in_minibuffer != MB_COMPREAD)
801 		return;
802 
803 	buffer = &ministate.compl.buffer;
804 
805 	if (buffer->current_line != NULL)
806 		buffer->current_line->parent->type = LINE_COMPL;
807 
808 	forward_line(buffer, +1);
809 
810 	if (buffer->current_line != NULL)
811 		buffer->current_line->parent->type = LINE_COMPL_CURRENT;
812 }
813 
814 void
815 cmd_insert_current_candidate(struct buffer *buffer)
816 {
817 	struct vline *vl;
818 
819 	if (in_minibuffer != MB_COMPREAD)
820 		return;
821 
822 	buffer = &ministate.compl.buffer;
823 	if ((vl = buffer->current_line) == NULL)
824 		return;
825 
826 	minibuffer_taint_hist();
827 	strlcpy(ministate.buf, vl->parent->line, sizeof(ministate.buf));
828 	ministate.buffer.cpoff = utf8_cplen(ministate.buf);
829 }
830 
831 void
832 cmd_suspend_telescope(struct buffer *buffer)
833 {
834 	message("Zzz...");
835 	ui_suspend();
836 }
837 
838 void
839 cmd_toggle_pre_wrap(struct buffer *buffer)
840 {
841 	dont_wrap_pre = !dont_wrap_pre;
842 
843 	if (dont_wrap_pre)
844 		message("Don't wrap preformatted blocks");
845 	else
846 		message("Wrap preformatted blocks");
847 
848 	ui_schedule_redraw();
849 }
850 
851 void
852 cmd_mini_goto_beginning(struct buffer *buffer)
853 {
854 	struct vline *vl;
855 
856 	if (!in_minibuffer)
857 		return;
858 
859 	buffer = &ministate.compl.buffer;
860 
861 	if ((vl = buffer->current_line) != NULL)
862 		vl->parent->type = LINE_COMPL;
863 
864 	vl = TAILQ_FIRST(&buffer->head);
865 	while (vl != NULL && vl->parent->flags & L_HIDDEN)
866 		vl = TAILQ_NEXT(vl, vlines);
867 
868 	if (vl == NULL)
869 		return;
870 
871 	vl->parent->type = LINE_COMPL_CURRENT;
872 	buffer->top_line = vl;
873 	buffer->current_line = vl;
874 }
875 
876 void
877 cmd_mini_goto_end(struct buffer *buffer)
878 {
879 	struct vline *vl;
880 
881 	if (!in_minibuffer)
882 		return;
883 
884 	buffer = &ministate.compl.buffer;
885 
886 	if ((vl = buffer->current_line) != NULL)
887 		vl->parent->type = LINE_COMPL;
888 
889 	vl = TAILQ_LAST(&buffer->head, vhead);
890 	while (vl != NULL && vl->parent->flags & L_HIDDEN)
891 		vl = TAILQ_PREV(vl, vhead, vlines);
892 
893 	if (vl == NULL)
894 		return;
895 
896 	vl->parent->type = LINE_COMPL_CURRENT;
897 	buffer->current_line = vl;
898 }
899 
900 void
901 cmd_other_window(struct buffer *buffer)
902 {
903 	ui_other_window();
904 }