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Date:: Thu Jan 13 12:18:34 2022 UTC
Message:: tweak cache-info message
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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 "mcache.h"
26 #include "minibuffer.h"
27 #include "session.h"
28 #include "telescope.h"
29 #include "ui.h"
30 #include "utf8.h"
31 
32 #define GUARD_RECURSIVE_MINIBUFFER()				\
33 	do {							\
34 		if (in_minibuffer) {				\
35 			message("enable-recursive-minibuffers " \
36 			    "is not yet available.");		\
37 			return;					\
38 		}						\
39 	} while(0)
40 
41 #define GUARD_READ_ONLY()				\
42 	do {						\
43 		if (!in_minibuffer) {			\
44 			message("text is read-only");	\
45 			return;				\
46 		}					\
47 	} while(0)
48 
49 /* return 1 if moved, 0 otherwise */
50 static inline int
51 forward_line(struct buffer *buffer, int n)
52 {
53 	struct vline *vl;
54 	int did;
55 
56 	if (buffer->current_line == NULL)
57 		return 0;
58 	vl = buffer->current_line;
59 
60 	did = 0;
61 	while (n != 0) {
62 		if (n > 0) {
63 			vl = TAILQ_NEXT(vl, vlines);
64 			if (vl == NULL)
65 				return did;
66 			if (vl->parent->flags & L_HIDDEN)
67 				continue;
68 			buffer->current_line = vl;
69 			n--;
70 		} else {
71 			vl = TAILQ_PREV(vl, vhead, vlines);
72 			if (vl == NULL)
73 				return did;
74 			if (vl->parent->flags & L_HIDDEN)
75 				continue;
76 			if (buffer->current_line == buffer->top_line) {
77 				buffer->line_off--;
78 				buffer->top_line = vl;
79 			}
80 			buffer->current_line = vl;
81 			n++;
82 		}
83 
84 		did = 1;
85 	}
86 
87 	return did;
88 }
89 
90 void
91 cmd_previous_line(struct buffer *buffer)
92 {
93 	forward_line(buffer, -1);
94 }
95 
96 void
97 cmd_next_line(struct buffer *buffer)
98 {
99 	forward_line(buffer, +1);
100 }
101 
102 void
103 cmd_backward_char(struct buffer *buffer)
104 {
105 	if (buffer->cpoff != 0)
106 		buffer->cpoff--;
107 }
108 
109 void
110 cmd_forward_char(struct buffer *buffer)
111 {
112 	size_t len = 0;
113 
114 	if (buffer->current_line == NULL)
115 		return;
116 
117 	if (buffer->current_line->line != NULL)
118 		len = utf8_cplen(buffer->current_line->line);
119 	if (++buffer->cpoff > len)
120 		buffer->cpoff = len;
121 }
122 
123 void
124 cmd_backward_paragraph(struct buffer *buffer)
125 {
126 	do {
127 		if (!forward_line(buffer, -1)) {
128 			message("No previous paragraph");
129 			return;
130 		}
131 	} while (buffer->current_line->line != NULL ||
132 	    buffer->current_line->parent->type != LINE_TEXT);
133 }
134 
135 void
136 cmd_forward_paragraph(struct buffer *buffer)
137 {
138 	do {
139 		if (!forward_line(buffer, +1)) {
140 			message("No next paragraph");
141 			return;
142 		}
143 	} while (buffer->current_line->line != NULL ||
144 	    buffer->current_line->parent->type != LINE_TEXT);
145 }
146 
147 void
148 cmd_move_beginning_of_line(struct buffer *buffer)
149 {
150 	buffer->cpoff = 0;
151 }
152 
153 void
154 cmd_move_end_of_line(struct buffer *buffer)
155 {
156 	struct vline	*vl;
157 
158 	vl = buffer->current_line;
159 	if (vl == NULL || vl->line == NULL)
160 		return;
161 	buffer->cpoff = utf8_cplen(vl->line);
162 }
163 
164 void
165 cmd_redraw(struct buffer *buffer)
166 {
167 	ui_schedule_redraw();
168 }
169 
170 void
171 cmd_scroll_line_up(struct buffer *buffer)
172 {
173 	struct vline	*vl;
174 
175 	for (;;) {
176 		if (buffer->top_line == NULL)
177 			return;
178 
179 		if ((vl = TAILQ_PREV(buffer->top_line, vhead, vlines))
180 		    == NULL)
181 			return;
182 
183 		buffer->top_line = vl;
184 
185 		if (vl->parent->flags & L_HIDDEN)
186 			continue;
187 
188 		break;
189 	}
190 
191 	buffer->line_off--;
192 
193 	forward_line(buffer, -1);
194 }
195 
196 void
197 cmd_scroll_line_down(struct buffer *buffer)
198 {
199 	if (!forward_line(buffer, +1))
200 		return;
201 
202 	for (;;) {
203 		if (buffer->top_line == NULL)
204 			return;
205 
206 		buffer->top_line = TAILQ_NEXT(buffer->top_line, vlines);
207 		if (buffer->top_line->parent->flags & L_HIDDEN)
208 			continue;
209 		break;
210 	}
211 
212 	buffer->line_off++;
213 }
214 
215 void
216 cmd_scroll_up(struct buffer *buffer)
217 {
218 	struct vline	*vl;
219 	int		 i;
220 
221 	if (buffer->top_line == NULL)
222 		return;
223 
224 	for (i = 0; i < body_lines; ++i) {
225 		vl = TAILQ_PREV(buffer->top_line, vhead, vlines);
226 		if (vl == NULL)
227 			break;
228 		buffer->line_off--;
229 		buffer->top_line = vl;
230 		forward_line(buffer, -1);
231 	}
232 }
233 
234 void
235 cmd_scroll_down(struct buffer *buffer)
236 {
237 	int i;
238 
239 	if (buffer->top_line == NULL)
240 		return;
241 
242 	for (i = 0; i < body_lines; ++i) {
243 		if (!forward_line(buffer, +1))
244 			break;
245 
246 		buffer->top_line = TAILQ_NEXT(buffer->top_line,
247 		    vlines);
248 		buffer->line_off++;
249 	}
250 }
251 
252 void
253 cmd_beginning_of_buffer(struct buffer *buffer)
254 {
255 	buffer->current_line = TAILQ_FIRST(&buffer->head);
256 	buffer->cpoff = 0;
257 	buffer->top_line = buffer->current_line;
258 	buffer->line_off = 0;
259 }
260 
261 void
262 cmd_end_of_buffer(struct buffer *buffer)
263 {
264 	buffer->current_line = TAILQ_LAST(&buffer->head, vhead);
265 
266 	if (buffer->current_line == NULL)
267 		return;
268 
269 	/* deal with invisible lines */
270 	if (buffer->current_line->parent->flags & L_HIDDEN)
271 		forward_line(buffer, -1);
272 
273 	cmd_move_end_of_line(buffer);
274 }
275 
276 static void
277 kill_telescope_cb(int r, struct tab *tab)
278 {
279 	if (r) {
280 		save_session();
281 		event_loopbreak();
282 	}
283 }
284 
285 void
286 cmd_kill_telescope(struct buffer *buffer)
287 {
288 	yornp("really quit?", kill_telescope_cb, NULL);
289 }
290 
291 void
292 cmd_push_button(struct buffer *buffer)
293 {
294 	struct vline	*vl;
295 	struct line	*l;
296 
297 	vl = buffer->current_line;
298 
299 	if (vl == NULL)
300 		return;
301 
302 	switch (vl->parent->type) {
303 	case LINE_LINK:
304 		load_url_in_tab(current_tab, vl->parent->alt, NULL,
305 		    LU_MODE_NOCACHE);
306 		break;
307 	case LINE_PRE_START:
308 		l = TAILQ_NEXT(vl->parent, lines);
309 		for (; l != NULL; l = TAILQ_NEXT(l, lines)) {
310 			if (l->type == LINE_PRE_END)
311 				break;
312 			l->flags ^= L_HIDDEN;
313 			if (l->flags & L_HIDDEN)
314 				buffer->line_max--;
315 			else
316 				buffer->line_max++;
317 		}
318 		break;
319 	default:
320 		break;
321 	}
322 }
323 
324 void
325 cmd_push_button_new_tab(struct buffer *buffer)
326 {
327 	struct vline	*vl;
328 
329 	vl = buffer->current_line;
330 	if (vl == NULL || vl->parent->type != LINE_LINK)
331 		return;
332 
333 	new_tab(vl->parent->alt, current_tab->hist_cur->h, current_tab);
334 }
335 
336 void
337 cmd_previous_button(struct buffer *buffer)
338 {
339 	struct excursion place;
340 
341 	save_excursion(&place, buffer);
342 
343 	do {
344 		if (!forward_line(buffer, -1)) {
345 			restore_excursion(&place, buffer);
346 			message("No previous link");
347 			return;
348 		}
349 	} while (buffer->current_line->parent->type != LINE_LINK);
350 }
351 
352 void
353 cmd_next_button(struct buffer *buffer)
354 {
355 	struct excursion place;
356 
357 	save_excursion(&place, buffer);
358 
359 	do {
360 		if (!forward_line(buffer, +1)){
361 			restore_excursion(&place, buffer);
362 			message("No next link");
363 			return;
364 		}
365 	} while (buffer->current_line->parent->type != LINE_LINK);
366 }
367 
368 static inline int
369 is_heading(const struct line *l)
370 {
371 	return l->type == LINE_TITLE_1 ||
372 		l->type == LINE_TITLE_2 ||
373 		l->type == LINE_TITLE_3;
374 }
375 
376 void
377 cmd_previous_heading(struct buffer *buffer)
378 {
379 	struct excursion place;
380 
381 	save_excursion(&place, buffer);
382 
383 	do {
384 		if (!forward_line(buffer, -1)) {
385 			restore_excursion(&place, buffer);
386 			message("No previous heading");
387 			return;
388 		}
389 	} while (!is_heading(buffer->current_line->parent));
390 }
391 
392 void
393 cmd_next_heading(struct buffer *buffer)
394 {
395 	struct excursion place;
396 
397 	save_excursion(&place, buffer);
398 
399 	do {
400 		if (!forward_line(buffer, +1)) {
401 			restore_excursion(&place, buffer);
402 			message("No next heading");
403 			return;
404 		}
405 	} while (!is_heading(buffer->current_line->parent));
406 }
407 
408 void
409 cmd_previous_page(struct buffer *buffer)
410 {
411 	if (!load_previous_page(current_tab))
412 		message("No previous page");
413 }
414 
415 void
416 cmd_next_page(struct buffer *buffer)
417 {
418 	if (!load_next_page(current_tab))
419 		message("No next page");
420 }
421 
422 void
423 cmd_clear_minibuf(struct buffer *buffer)
424 {
425 	message(NULL);
426 }
427 
428 void
429 cmd_execute_extended_command(struct buffer *buffer)
430 {
431 	size_t	 len;
432 
433 	GUARD_RECURSIVE_MINIBUFFER();
434 
435 	enter_minibuffer(sensible_self_insert, eecmd_select, exit_minibuffer,
436 	    &eecmd_history, compl_eecmd, NULL);
437 
438 	len = sizeof(ministate.prompt);
439 	strlcpy(ministate.prompt, "", len);
440 
441 	if (thiskey.meta)
442 		strlcat(ministate.prompt, "M-", len);
443 
444 	strlcat(ministate.prompt, ui_keyname(thiskey.key), len);
445 
446 	if (thiskey.meta)
447 		strlcat(ministate.prompt, " ", len);
448 }
449 
450 void
451 cmd_tab_close(struct buffer *buffer)
452 {
453 	struct tab *tab, *t;
454 
455 	tab = current_tab;
456 
457 	if ((t = TAILQ_NEXT(tab, tabs)) != NULL ||
458 	    (t = TAILQ_PREV(tab, tabshead, tabs)) != NULL) {
459 		switch_to_tab(t);
460 		kill_tab(tab, 0);
461 	} else
462 		message("Can't close the only tab.");
463 
464 }
465 
466 void
467 cmd_tab_close_other(struct buffer *buffer)
468 {
469 	struct tab *t, *i;
470 
471 	TAILQ_FOREACH_SAFE(t, &tabshead, tabs, i) {
472 		if (t == current_tab)
473 			continue;
474 
475 		kill_tab(t, 0);
476 	}
477 }
478 
479 void
480 cmd_tab_undo_close(struct buffer *buffer)
481 {
482 	struct tab *t;
483 
484 	if ((t = unkill_tab()) == NULL) {
485 		message("No recently-closed tabs");
486 		return;
487 	}
488 
489 	switch_to_tab(t);
490 }
491 
492 void
493 cmd_tab_new(struct buffer *buffer)
494 {
495 	const char *url;
496 
497 	if ((url = new_tab_url) == NULL)
498 		url = NEW_TAB_URL;
499 
500 	new_tab(url, NULL, NULL);
501 }
502 
503 void
504 cmd_tab_next(struct buffer *buffer)
505 {
506 	struct tab *t;
507 
508 	if ((t = TAILQ_NEXT(current_tab, tabs)) == NULL)
509 		t = TAILQ_FIRST(&tabshead);
510 	switch_to_tab(t);
511 }
512 
513 void
514 cmd_tab_previous(struct buffer *buffer)
515 {
516 	struct tab *t;
517 
518 	if ((t = TAILQ_PREV(current_tab, tabshead, tabs)) == NULL)
519 		t = TAILQ_LAST(&tabshead, tabshead);
520 	switch_to_tab(t);
521 }
522 
523 void
524 cmd_tab_move(struct buffer *buffer)
525 {
526 	struct tab *t;
527 
528 	t = TAILQ_NEXT(current_tab, tabs);
529 	TAILQ_REMOVE(&tabshead, current_tab, tabs);
530 
531 	if (t == NULL)
532 		TAILQ_INSERT_HEAD(&tabshead, current_tab, tabs);
533 	else
534 		TAILQ_INSERT_AFTER(&tabshead, t, current_tab, tabs);
535 }
536 
537 void
538 cmd_tab_move_to(struct buffer *buffer)
539 {
540 	struct tab *t;
541 
542 	t = TAILQ_PREV(current_tab, tabshead, tabs);
543 	TAILQ_REMOVE(&tabshead, current_tab, tabs);
544 
545 	if (t == NULL)
546 		TAILQ_INSERT_TAIL(&tabshead, current_tab, tabs);
547 	else
548 		TAILQ_INSERT_BEFORE(t, current_tab, tabs);
549 }
550 
551 void
552 cmd_tab_select(struct buffer *buffer)
553 {
554 	GUARD_RECURSIVE_MINIBUFFER();
555 
556 	enter_minibuffer(sensible_self_insert, ts_select, exit_minibuffer,
557 	    NULL, compl_ts, NULL);
558 	strlcpy(ministate.prompt, "Select tab: ", sizeof(ministate.prompt));
559 }
560 
561 void
562 cmd_load_url(struct buffer *buffer)
563 {
564 	GUARD_RECURSIVE_MINIBUFFER();
565 
566 	enter_minibuffer(sensible_self_insert, lu_select, exit_minibuffer,
567 	    &lu_history, NULL, NULL);
568 	strlcpy(ministate.prompt, "Load URL: ", sizeof(ministate.prompt));
569 }
570 
571 void
572 cmd_load_current_url(struct buffer *buffer)
573 {
574 	GUARD_RECURSIVE_MINIBUFFER();
575 
576 	enter_minibuffer(sensible_self_insert, lu_select, exit_minibuffer,
577 	    &lu_history, NULL, NULL);
578 	strlcpy(ministate.prompt, "Load URL: ", sizeof(ministate.prompt));
579 	strlcpy(ministate.buf, current_tab->hist_cur->h, sizeof(ministate.buf));
580 	ministate.buffer.cpoff = utf8_cplen(ministate.buf);
581 }
582 
583 void
584 cmd_reload_page(struct buffer *buffer)
585 {
586 	load_url_in_tab(current_tab, current_tab->hist_cur->h, NULL,
587 	    LU_MODE_NOHIST|LU_MODE_NOCACHE);
588 }
589 
590 void
591 cmd_bookmark_page(struct buffer *buffer)
592 {
593 	GUARD_RECURSIVE_MINIBUFFER();
594 
595 	enter_minibuffer(sensible_self_insert, bp_select, exit_minibuffer, NULL,
596 	    NULL, NULL);
597 	strlcpy(ministate.prompt, "Bookmark URL: ", sizeof(ministate.prompt));
598 	strlcpy(ministate.buf, current_tab->hist_cur->h, sizeof(ministate.buf));
599 	ministate.buffer.cpoff = utf8_cplen(ministate.buf);
600 }
601 
602 void
603 cmd_list_bookmarks(struct buffer *buffer)
604 {
605 	load_url_in_tab(current_tab, "about:bookmarks", NULL, LU_MODE_NONE);
606 }
607 
608 void
609 cmd_toggle_help(struct buffer *buffer)
610 {
611 	ui_toggle_side_window(SIDE_WINDOW_LEFT);
612 }
613 
614 void
615 cmd_link_select(struct buffer *buffer)
616 {
617 	struct line *l;
618 
619 	GUARD_RECURSIVE_MINIBUFFER();
620 
621 	l = TAILQ_FIRST(&buffer->page.head);
622 	while (l != NULL && l->type != LINE_LINK)
623 		l = TAILQ_NEXT(l, lines);
624 
625 	if (l == NULL) {
626 		message("No links found");
627 		return;
628 	}
629 
630 	enter_minibuffer(sensible_self_insert, ls_select, exit_minibuffer,
631 	    NULL, compl_ls, l);
632 	strlcpy(ministate.prompt, "Select link: ", sizeof(ministate.prompt));
633 }
634 
635 void
636 cmd_swiper(struct buffer *buffer)
637 {
638 	GUARD_RECURSIVE_MINIBUFFER();
639 
640 	enter_minibuffer(sensible_self_insert, swiper_select, exit_minibuffer,
641 	    NULL, compl_swiper, TAILQ_FIRST(&buffer->page.head));
642 	strlcpy(ministate.prompt, "Select line: ", sizeof(ministate.prompt));
643 }
644 
645 void
646 cmd_toc(struct buffer *buffer)
647 {
648 	struct line *l;
649 
650 	GUARD_RECURSIVE_MINIBUFFER();
651 
652 	l = TAILQ_FIRST(&buffer->page.head);
653 	while (l != NULL &&
654 	    l->type != LINE_TITLE_1 &&
655 	    l->type != LINE_TITLE_2 &&
656 	    l->type != LINE_TITLE_3)
657 		l = TAILQ_NEXT(l, lines);
658 
659 	if (l == NULL) {
660 		message("No headings found");
661 		return;
662 	}
663 
664 	enter_minibuffer(sensible_self_insert, toc_select, exit_minibuffer,
665 	    NULL, compl_toc, l);
666 	strlcpy(ministate.prompt, "Select heading: ",
667 	    sizeof(ministate.prompt));
668 }
669 
670 void
671 cmd_inc_fill_column(struct buffer *buffer)
672 {
673 	if (fill_column == INT_MAX)
674 		return;
675 
676 	fill_column += 2;
677 	message("fill-column: %d", fill_column);
678 
679 	ui_schedule_redraw();
680 }
681 
682 void
683 cmd_dec_fill_column(struct buffer *buffer)
684 {
685 	if (fill_column == INT_MAX || fill_column < 8)
686 		return;
687 
688 	fill_column -= 2;
689 	message("fill-column: %d", fill_column);
690 
691 	ui_schedule_redraw();
692 }
693 
694 void
695 cmd_olivetti_mode(struct buffer *buffer)
696 {
697 	olivetti_mode = !olivetti_mode;
698 	if (olivetti_mode)
699 		message("olivetti-mode enabled");
700 	else
701 		message("olivetti-mode disabled");
702 
703 	ui_schedule_redraw();
704 }
705 
706 void
707 cmd_mini_delete_char(struct buffer *buffer)
708 {
709 	char *c, *n;
710 
711 	GUARD_READ_ONLY();
712 
713 	minibuffer_taint_hist();
714 
715 	c = utf8_nth(buffer->current_line->line, buffer->cpoff);
716 	if (*c == '\0')
717 		return;
718 	n = utf8_next_cp(c);
719 
720 	memmove(c, n, strlen(n)+1);
721 
722 	recompute_completions(0);
723 }
724 
725 void
726 cmd_mini_delete_backward_char(struct buffer *buffer)
727 {
728 	char *c, *p, *start;
729 
730 	GUARD_READ_ONLY();
731 
732 	minibuffer_taint_hist();
733 
734 	c = utf8_nth(buffer->current_line->line, buffer->cpoff);
735 	start = buffer->current_line->line;
736 	if (c == start)
737 		return;
738 	p = utf8_prev_cp(c-1, start);
739 
740 	memmove(p, c, strlen(c)+1);
741 	buffer->cpoff--;
742 
743 	recompute_completions(0);
744 }
745 
746 void
747 cmd_mini_kill_line(struct buffer *buffer)
748 {
749 	char *c;
750 
751 	GUARD_READ_ONLY();
752 
753 	minibuffer_taint_hist();
754 	c = utf8_nth(buffer->current_line->line, buffer->cpoff);
755 	*c = '\0';
756 
757 	recompute_completions(0);
758 }
759 
760 void
761 cmd_mini_abort(struct buffer *buffer)
762 {
763 	if (!in_minibuffer)
764 		return;
765 
766 	ministate.abortfn();
767 }
768 
769 void
770 cmd_mini_complete_and_exit(struct buffer *buffer)
771 {
772 	if (!in_minibuffer)
773 		return;
774 
775 	minibuffer_taint_hist();
776 	ministate.donefn();
777 }
778 
779 void
780 cmd_mini_previous_history_element(struct buffer *buffer)
781 {
782 	if (ministate.history == NULL) {
783 		message("No history");
784 		return;
785 	}
786 
787 	if (ministate.hist_cur == NULL ||
788 	    (ministate.hist_cur = TAILQ_PREV(ministate.hist_cur, mhisthead, entries)) == NULL) {
789 		ministate.hist_cur = TAILQ_LAST(&ministate.history->head, mhisthead);
790 		ministate.hist_off = ministate.history->len - 1;
791 		if (ministate.hist_cur == NULL)
792 			message("No prev history item");
793 	} else {
794 		ministate.hist_off--;
795 	}
796 
797 	if (ministate.hist_cur != NULL)
798 		buffer->current_line->line = ministate.hist_cur->h;
799 }
800 
801 void
802 cmd_mini_next_history_element(struct buffer *buffer)
803 {
804 	if (ministate.history == NULL) {
805 		message("No history");
806 		return;
807 	}
808 
809 	if (ministate.hist_cur == NULL ||
810 	    (ministate.hist_cur = TAILQ_NEXT(ministate.hist_cur, entries)) == NULL) {
811 		ministate.hist_cur = TAILQ_FIRST(&ministate.history->head);
812 		ministate.hist_off = 0;
813 		if (ministate.hist_cur == NULL)
814 			message("No next history item");
815 	} else {
816 		ministate.hist_off++;
817 	}
818 
819 	if (ministate.hist_cur != NULL)
820 		buffer->current_line->line = ministate.hist_cur->h;
821 }
822 
823 void
824 cmd_previous_completion(struct buffer *buffer)
825 {
826 	if (in_minibuffer != MB_COMPREAD)
827 		return;
828 
829 	buffer = &ministate.compl.buffer;
830 
831 	if (buffer->current_line != NULL)
832 		buffer->current_line->parent->type = LINE_COMPL;
833 
834 	forward_line(buffer, -1);
835 
836 	if (buffer->current_line != NULL)
837 		buffer->current_line->parent->type = LINE_COMPL_CURRENT;
838 }
839 
840 void
841 cmd_next_completion(struct buffer *buffer)
842 {
843 	if (in_minibuffer != MB_COMPREAD)
844 		return;
845 
846 	buffer = &ministate.compl.buffer;
847 
848 	if (buffer->current_line != NULL)
849 		buffer->current_line->parent->type = LINE_COMPL;
850 
851 	forward_line(buffer, +1);
852 
853 	if (buffer->current_line != NULL)
854 		buffer->current_line->parent->type = LINE_COMPL_CURRENT;
855 }
856 
857 void
858 cmd_insert_current_candidate(struct buffer *buffer)
859 {
860 	if (in_minibuffer != MB_COMPREAD)
861 		return;
862 
863 	minibuffer_insert_current_candidate();
864 }
865 
866 void
867 cmd_suspend_telescope(struct buffer *buffer)
868 {
869 	message("Zzz...");
870 	ui_suspend();
871 }
872 
873 void
874 cmd_toggle_pre_wrap(struct buffer *buffer)
875 {
876 	dont_wrap_pre = !dont_wrap_pre;
877 
878 	if (dont_wrap_pre)
879 		message("Don't wrap preformatted blocks");
880 	else
881 		message("Wrap preformatted blocks");
882 
883 	ui_schedule_redraw();
884 }
885 
886 void
887 cmd_mini_goto_beginning(struct buffer *buffer)
888 {
889 	struct vline *vl;
890 
891 	if (!in_minibuffer)
892 		return;
893 
894 	buffer = &ministate.compl.buffer;
895 
896 	if ((vl = buffer->current_line) != NULL)
897 		vl->parent->type = LINE_COMPL;
898 
899 	vl = TAILQ_FIRST(&buffer->head);
900 	while (vl != NULL && vl->parent->flags & L_HIDDEN)
901 		vl = TAILQ_NEXT(vl, vlines);
902 
903 	if (vl == NULL)
904 		return;
905 
906 	vl->parent->type = LINE_COMPL_CURRENT;
907 	buffer->top_line = vl;
908 	buffer->current_line = vl;
909 }
910 
911 void
912 cmd_mini_goto_end(struct buffer *buffer)
913 {
914 	struct vline *vl;
915 
916 	if (!in_minibuffer)
917 		return;
918 
919 	buffer = &ministate.compl.buffer;
920 
921 	if ((vl = buffer->current_line) != NULL)
922 		vl->parent->type = LINE_COMPL;
923 
924 	vl = TAILQ_LAST(&buffer->head, vhead);
925 	while (vl != NULL && vl->parent->flags & L_HIDDEN)
926 		vl = TAILQ_PREV(vl, vhead, vlines);
927 
928 	if (vl == NULL)
929 		return;
930 
931 	vl->parent->type = LINE_COMPL_CURRENT;
932 	buffer->current_line = vl;
933 }
934 
935 void
936 cmd_other_window(struct buffer *buffer)
937 {
938 	ui_other_window();
939 }
940 
941 void
942 cmd_mini_scroll_up(struct buffer *buffer)
943 {
944 	if (!in_minibuffer)
945 		return;
946 
947 	buffer = &ministate.compl.buffer;
948 	if (buffer->current_line == NULL)
949 		return;
950 
951 	buffer->current_line->parent->type = LINE_COMPL;
952 	cmd_scroll_up(buffer);
953 	buffer->current_line->parent->type = LINE_COMPL_CURRENT;
954 }
955 
956 void
957 cmd_mini_scroll_down(struct buffer *buffer)
958 {
959 	if (!in_minibuffer)
960 		return;
961 
962 	buffer = &ministate.compl.buffer;
963 	if (buffer->current_line == NULL)
964 		return;
965 
966 	buffer->current_line->parent->type = LINE_COMPL;
967 	cmd_scroll_down(buffer);
968 	buffer->current_line->parent->type = LINE_COMPL_CURRENT;
969 }
970 
971 void
972 cmd_toggle_downloads(struct buffer *buffer)
973 {
974 	ui_toggle_side_window(SIDE_WINDOW_BOTTOM);
975 }
976 
977 void
978 cmd_cache_info(struct buffer *buffer)
979 {
980 	size_t	npages, tot;
981 	char	fmt[FMT_SCALED_STRSIZE];
982 
983 	mcache_info(&npages, &tot);
984 
985 	if (fmt_scaled(tot, fmt) == 0)
986 		message("pages: %zu, total: %s", npages, fmt);
987 	else
988 		message("pages: %zu, total: %zu", npages, tot);
989 }