op public repos

Blob

Date:: Tue Jan 11 13:44:10 2022 UTC
Message:: provide a way to bypass the cache This changes the last argument of load_url to be a `mode' bitmap instead of a boolean ``nohist''. LU_MODE_NOHIST is the old 1, LU_MODE_NONE is provided just for readability and the new LU_MODE_NOCACHE allows to bypass the caching when loading a page. Telescope only uses the cache when: - re-opens a closed tab - navigates backward and forward in the history All other situations result in the usual network request.
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 "session.h"
27 #include "telescope.h"
28 #include "ui.h"
29 #include "utf8.h"
30 
31 #define GUARD_RECURSIVE_MINIBUFFER()				\
32 	do {							\
33 		if (in_minibuffer) {				\
34 			message("enable-recursive-minibuffers " \
35 			    "is not yet available.");		\
36 			return;					\
37 		}						\
38 	} while(0)
39 
40 #define GUARD_READ_ONLY()				\
41 	do {						\
42 		if (!in_minibuffer) {			\
43 			message("text is read-only");	\
44 			return;				\
45 		}					\
46 	} while(0)
47 
48 /* return 1 if moved, 0 otherwise */
49 static inline int
50 forward_line(struct buffer *buffer, int n)
51 {
52 	struct vline *vl;
53 	int did;
54 
55 	if (buffer->current_line == NULL)
56 		return 0;
57 	vl = buffer->current_line;
58 
59 	did = 0;
60 	while (n != 0) {
61 		if (n > 0) {
62 			vl = TAILQ_NEXT(vl, vlines);
63 			if (vl == NULL)
64 				return did;
65 			if (vl->parent->flags & L_HIDDEN)
66 				continue;
67 			buffer->current_line = vl;
68 			n--;
69 		} else {
70 			vl = TAILQ_PREV(vl, vhead, vlines);
71 			if (vl == NULL)
72 				return did;
73 			if (vl->parent->flags & L_HIDDEN)
74 				continue;
75 			if (buffer->current_line == buffer->top_line) {
76 				buffer->line_off--;
77 				buffer->top_line = vl;
78 			}
79 			buffer->current_line = vl;
80 			n++;
81 		}
82 
83 		did = 1;
84 	}
85 
86 	return did;
87 }
88 
89 void
90 cmd_previous_line(struct buffer *buffer)
91 {
92 	forward_line(buffer, -1);
93 }
94 
95 void
96 cmd_next_line(struct buffer *buffer)
97 {
98 	forward_line(buffer, +1);
99 }
100 
101 void
102 cmd_backward_char(struct buffer *buffer)
103 {
104 	if (buffer->cpoff != 0)
105 		buffer->cpoff--;
106 }
107 
108 void
109 cmd_forward_char(struct buffer *buffer)
110 {
111 	size_t len = 0;
112 
113 	if (buffer->current_line == NULL)
114 		return;
115 
116 	if (buffer->current_line->line != NULL)
117 		len = utf8_cplen(buffer->current_line->line);
118 	if (++buffer->cpoff > len)
119 		buffer->cpoff = len;
120 }
121 
122 void
123 cmd_backward_paragraph(struct buffer *buffer)
124 {
125 	do {
126 		if (!forward_line(buffer, -1)) {
127 			message("No previous paragraph");
128 			return;
129 		}
130 	} while (buffer->current_line->line != NULL ||
131 	    buffer->current_line->parent->type != LINE_TEXT);
132 }
133 
134 void
135 cmd_forward_paragraph(struct buffer *buffer)
136 {
137 	do {
138 		if (!forward_line(buffer, +1)) {
139 			message("No next paragraph");
140 			return;
141 		}
142 	} while (buffer->current_line->line != NULL ||
143 	    buffer->current_line->parent->type != LINE_TEXT);
144 }
145 
146 void
147 cmd_move_beginning_of_line(struct buffer *buffer)
148 {
149 	buffer->cpoff = 0;
150 }
151 
152 void
153 cmd_move_end_of_line(struct buffer *buffer)
154 {
155 	struct vline	*vl;
156 
157 	vl = buffer->current_line;
158 	if (vl == NULL || vl->line == NULL)
159 		return;
160 	buffer->cpoff = utf8_cplen(vl->line);
161 }
162 
163 void
164 cmd_redraw(struct buffer *buffer)
165 {
166 	ui_schedule_redraw();
167 }
168 
169 void
170 cmd_scroll_line_up(struct buffer *buffer)
171 {
172 	struct vline	*vl;
173 
174 	for (;;) {
175 		if (buffer->top_line == NULL)
176 			return;
177 
178 		if ((vl = TAILQ_PREV(buffer->top_line, vhead, vlines))
179 		    == NULL)
180 			return;
181 
182 		buffer->top_line = vl;
183 
184 		if (vl->parent->flags & L_HIDDEN)
185 			continue;
186 
187 		break;
188 	}
189 
190 	buffer->line_off--;
191 
192 	forward_line(buffer, -1);
193 }
194 
195 void
196 cmd_scroll_line_down(struct buffer *buffer)
197 {
198 	if (!forward_line(buffer, +1))
199 		return;
200 
201 	for (;;) {
202 		if (buffer->top_line == NULL)
203 			return;
204 
205 		buffer->top_line = TAILQ_NEXT(buffer->top_line, vlines);
206 		if (buffer->top_line->parent->flags & L_HIDDEN)
207 			continue;
208 		break;
209 	}
210 
211 	buffer->line_off++;
212 }
213 
214 void
215 cmd_scroll_up(struct buffer *buffer)
216 {
217 	struct vline	*vl;
218 	int		 i;
219 
220 	if (buffer->top_line == NULL)
221 		return;
222 
223 	for (i = 0; i < body_lines; ++i) {
224 		vl = TAILQ_PREV(buffer->top_line, vhead, vlines);
225 		if (vl == NULL)
226 			break;
227 		buffer->line_off--;
228 		buffer->top_line = vl;
229 		forward_line(buffer, -1);
230 	}
231 }
232 
233 void
234 cmd_scroll_down(struct buffer *buffer)
235 {
236 	int i;
237 
238 	if (buffer->top_line == NULL)
239 		return;
240 
241 	for (i = 0; i < body_lines; ++i) {
242 		if (!forward_line(buffer, +1))
243 			break;
244 
245 		buffer->top_line = TAILQ_NEXT(buffer->top_line,
246 		    vlines);
247 		buffer->line_off++;
248 	}
249 }
250 
251 void
252 cmd_beginning_of_buffer(struct buffer *buffer)
253 {
254 	buffer->current_line = TAILQ_FIRST(&buffer->head);
255 	buffer->cpoff = 0;
256 	buffer->top_line = buffer->current_line;
257 	buffer->line_off = 0;
258 }
259 
260 void
261 cmd_end_of_buffer(struct buffer *buffer)
262 {
263 	buffer->current_line = TAILQ_LAST(&buffer->head, vhead);
264 
265 	if (buffer->current_line == NULL)
266 		return;
267 
268 	/* deal with invisible lines */
269 	if (buffer->current_line->parent->flags & L_HIDDEN)
270 		forward_line(buffer, -1);
271 
272 	cmd_move_end_of_line(buffer);
273 }
274 
275 static void
276 kill_telescope_cb(int r, struct tab *tab)
277 {
278 	if (r) {
279 		save_session();
280 		event_loopbreak();
281 	}
282 }
283 
284 void
285 cmd_kill_telescope(struct buffer *buffer)
286 {
287 	yornp("really quit?", kill_telescope_cb, NULL);
288 }
289 
290 void
291 cmd_push_button(struct buffer *buffer)
292 {
293 	struct vline	*vl;
294 	struct line	*l;
295 
296 	vl = buffer->current_line;
297 
298 	if (vl == NULL)
299 		return;
300 
301 	switch (vl->parent->type) {
302 	case LINE_LINK:
303 		load_url_in_tab(current_tab, vl->parent->alt, NULL,
304 		    LU_MODE_NOCACHE);
305 		break;
306 	case LINE_PRE_START:
307 		l = TAILQ_NEXT(vl->parent, lines);
308 		for (; l != NULL; l = TAILQ_NEXT(l, lines)) {
309 			if (l->type == LINE_PRE_END)
310 				break;
311 			l->flags ^= L_HIDDEN;
312 			if (l->flags & L_HIDDEN)
313 				buffer->line_max--;
314 			else
315 				buffer->line_max++;
316 		}
317 		break;
318 	default:
319 		break;
320 	}
321 }
322 
323 void
324 cmd_push_button_new_tab(struct buffer *buffer)
325 {
326 	struct vline	*vl;
327 
328 	vl = buffer->current_line;
329 	if (vl == NULL || vl->parent->type != LINE_LINK)
330 		return;
331 
332 	new_tab(vl->parent->alt, current_tab->hist_cur->h, current_tab);
333 }
334 
335 void
336 cmd_previous_button(struct buffer *buffer)
337 {
338 	struct excursion place;
339 
340 	save_excursion(&place, buffer);
341 
342 	do {
343 		if (!forward_line(buffer, -1)) {
344 			restore_excursion(&place, buffer);
345 			message("No previous link");
346 			return;
347 		}
348 	} while (buffer->current_line->parent->type != LINE_LINK);
349 }
350 
351 void
352 cmd_next_button(struct buffer *buffer)
353 {
354 	struct excursion place;
355 
356 	save_excursion(&place, buffer);
357 
358 	do {
359 		if (!forward_line(buffer, +1)){
360 			restore_excursion(&place, buffer);
361 			message("No next link");
362 			return;
363 		}
364 	} while (buffer->current_line->parent->type != LINE_LINK);
365 }
366 
367 static inline int
368 is_heading(const struct line *l)
369 {
370 	return l->type == LINE_TITLE_1 ||
371 		l->type == LINE_TITLE_2 ||
372 		l->type == LINE_TITLE_3;
373 }
374 
375 void
376 cmd_previous_heading(struct buffer *buffer)
377 {
378 	struct excursion place;
379 
380 	save_excursion(&place, buffer);
381 
382 	do {
383 		if (!forward_line(buffer, -1)) {
384 			restore_excursion(&place, buffer);
385 			message("No previous heading");
386 			return;
387 		}
388 	} while (!is_heading(buffer->current_line->parent));
389 }
390 
391 void
392 cmd_next_heading(struct buffer *buffer)
393 {
394 	struct excursion place;
395 
396 	save_excursion(&place, buffer);
397 
398 	do {
399 		if (!forward_line(buffer, +1)) {
400 			restore_excursion(&place, buffer);
401 			message("No next heading");
402 			return;
403 		}
404 	} while (!is_heading(buffer->current_line->parent));
405 }
406 
407 void
408 cmd_previous_page(struct buffer *buffer)
409 {
410 	if (!load_previous_page(current_tab))
411 		message("No previous page");
412 	else
413 		start_loading_anim(current_tab);
414 }
415 
416 void
417 cmd_next_page(struct buffer *buffer)
418 {
419 	if (!load_next_page(current_tab))
420 		message("No next page");
421 	else
422 		start_loading_anim(current_tab);
423 }
424 
425 void
426 cmd_clear_minibuf(struct buffer *buffer)
427 {
428 	message(NULL);
429 }
430 
431 void
432 cmd_execute_extended_command(struct buffer *buffer)
433 {
434 	size_t	 len;
435 
436 	GUARD_RECURSIVE_MINIBUFFER();
437 
438 	enter_minibuffer(sensible_self_insert, eecmd_select, exit_minibuffer,
439 	    &eecmd_history, compl_eecmd, NULL);
440 
441 	len = sizeof(ministate.prompt);
442 	strlcpy(ministate.prompt, "", len);
443 
444 	if (thiskey.meta)
445 		strlcat(ministate.prompt, "M-", len);
446 
447 	strlcat(ministate.prompt, ui_keyname(thiskey.key), len);
448 
449 	if (thiskey.meta)
450 		strlcat(ministate.prompt, " ", len);
451 }
452 
453 void
454 cmd_tab_close(struct buffer *buffer)
455 {
456 	struct tab *tab, *t;
457 
458 	tab = current_tab;
459 
460 	if ((t = TAILQ_NEXT(tab, tabs)) != NULL ||
461 	    (t = TAILQ_PREV(tab, tabshead, tabs)) != NULL) {
462 		switch_to_tab(t);
463 		kill_tab(tab, 0);
464 	} else
465 		message("Can't close the only tab.");
466 
467 }
468 
469 void
470 cmd_tab_close_other(struct buffer *buffer)
471 {
472 	struct tab *t, *i;
473 
474 	TAILQ_FOREACH_SAFE(t, &tabshead, tabs, i) {
475 		if (t == current_tab)
476 			continue;
477 
478 		kill_tab(t, 0);
479 	}
480 }
481 
482 void
483 cmd_tab_undo_close(struct buffer *buffer)
484 {
485 	struct tab *t;
486 
487 	if ((t = unkill_tab()) == NULL) {
488 		message("No recently-closed tabs");
489 		return;
490 	}
491 
492 	switch_to_tab(t);
493 }
494 
495 void
496 cmd_tab_new(struct buffer *buffer)
497 {
498 	const char *url;
499 
500 	if ((url = new_tab_url) == NULL)
501 		url = NEW_TAB_URL;
502 
503 	new_tab(url, NULL, NULL);
504 }
505 
506 void
507 cmd_tab_next(struct buffer *buffer)
508 {
509 	struct tab *t;
510 
511 	if ((t = TAILQ_NEXT(current_tab, tabs)) == NULL)
512 		t = TAILQ_FIRST(&tabshead);
513 	switch_to_tab(t);
514 }
515 
516 void
517 cmd_tab_previous(struct buffer *buffer)
518 {
519 	struct tab *t;
520 
521 	if ((t = TAILQ_PREV(current_tab, tabshead, tabs)) == NULL)
522 		t = TAILQ_LAST(&tabshead, tabshead);
523 	switch_to_tab(t);
524 }
525 
526 void
527 cmd_tab_move(struct buffer *buffer)
528 {
529 	struct tab *t;
530 
531 	t = TAILQ_NEXT(current_tab, tabs);
532 	TAILQ_REMOVE(&tabshead, current_tab, tabs);
533 
534 	if (t == NULL)
535 		TAILQ_INSERT_HEAD(&tabshead, current_tab, tabs);
536 	else
537 		TAILQ_INSERT_AFTER(&tabshead, t, current_tab, tabs);
538 }
539 
540 void
541 cmd_tab_move_to(struct buffer *buffer)
542 {
543 	struct tab *t;
544 
545 	t = TAILQ_PREV(current_tab, tabshead, tabs);
546 	TAILQ_REMOVE(&tabshead, current_tab, tabs);
547 
548 	if (t == NULL)
549 		TAILQ_INSERT_TAIL(&tabshead, current_tab, tabs);
550 	else
551 		TAILQ_INSERT_BEFORE(t, current_tab, tabs);
552 }
553 
554 void
555 cmd_tab_select(struct buffer *buffer)
556 {
557 	GUARD_RECURSIVE_MINIBUFFER();
558 
559 	enter_minibuffer(sensible_self_insert, ts_select, exit_minibuffer,
560 	    NULL, compl_ts, NULL);
561 	strlcpy(ministate.prompt, "Select tab: ", sizeof(ministate.prompt));
562 }
563 
564 void
565 cmd_load_url(struct buffer *buffer)
566 {
567 	GUARD_RECURSIVE_MINIBUFFER();
568 
569 	enter_minibuffer(sensible_self_insert, lu_select, exit_minibuffer,
570 	    &lu_history, NULL, NULL);
571 	strlcpy(ministate.prompt, "Load URL: ", sizeof(ministate.prompt));
572 }
573 
574 void
575 cmd_load_current_url(struct buffer *buffer)
576 {
577 	GUARD_RECURSIVE_MINIBUFFER();
578 
579 	enter_minibuffer(sensible_self_insert, lu_select, exit_minibuffer,
580 	    &lu_history, NULL, NULL);
581 	strlcpy(ministate.prompt, "Load URL: ", sizeof(ministate.prompt));
582 	strlcpy(ministate.buf, current_tab->hist_cur->h, sizeof(ministate.buf));
583 	ministate.buffer.cpoff = utf8_cplen(ministate.buf);
584 }
585 
586 void
587 cmd_reload_page(struct buffer *buffer)
588 {
589 	load_url_in_tab(current_tab, current_tab->hist_cur->h, NULL,
590 	    LU_MODE_NOHIST|LU_MODE_NOCACHE);
591 }
592 
593 void
594 cmd_bookmark_page(struct buffer *buffer)
595 {
596 	GUARD_RECURSIVE_MINIBUFFER();
597 
598 	enter_minibuffer(sensible_self_insert, bp_select, exit_minibuffer, NULL,
599 	    NULL, NULL);
600 	strlcpy(ministate.prompt, "Bookmark URL: ", sizeof(ministate.prompt));
601 	strlcpy(ministate.buf, current_tab->hist_cur->h, sizeof(ministate.buf));
602 	ministate.buffer.cpoff = utf8_cplen(ministate.buf);
603 }
604 
605 void
606 cmd_list_bookmarks(struct buffer *buffer)
607 {
608 	load_url_in_tab(current_tab, "about:bookmarks", NULL, LU_MODE_NONE);
609 }
610 
611 void
612 cmd_toggle_help(struct buffer *buffer)
613 {
614 	ui_toggle_side_window(SIDE_WINDOW_LEFT);
615 }
616 
617 void
618 cmd_link_select(struct buffer *buffer)
619 {
620 	struct line *l;
621 
622 	GUARD_RECURSIVE_MINIBUFFER();
623 
624 	l = TAILQ_FIRST(&buffer->page.head);
625 	while (l != NULL && l->type != LINE_LINK)
626 		l = TAILQ_NEXT(l, lines);
627 
628 	if (l == NULL) {
629 		message("No links found");
630 		return;
631 	}
632 
633 	enter_minibuffer(sensible_self_insert, ls_select, exit_minibuffer,
634 	    NULL, compl_ls, l);
635 	strlcpy(ministate.prompt, "Select link: ", sizeof(ministate.prompt));
636 }
637 
638 void
639 cmd_swiper(struct buffer *buffer)
640 {
641 	GUARD_RECURSIVE_MINIBUFFER();
642 
643 	enter_minibuffer(sensible_self_insert, swiper_select, exit_minibuffer,
644 	    NULL, compl_swiper, TAILQ_FIRST(&buffer->page.head));
645 	strlcpy(ministate.prompt, "Select line: ", sizeof(ministate.prompt));
646 }
647 
648 void
649 cmd_toc(struct buffer *buffer)
650 {
651 	struct line *l;
652 
653 	GUARD_RECURSIVE_MINIBUFFER();
654 
655 	l = TAILQ_FIRST(&buffer->page.head);
656 	while (l != NULL &&
657 	    l->type != LINE_TITLE_1 &&
658 	    l->type != LINE_TITLE_2 &&
659 	    l->type != LINE_TITLE_3)
660 		l = TAILQ_NEXT(l, lines);
661 
662 	if (l == NULL) {
663 		message("No headings found");
664 		return;
665 	}
666 
667 	enter_minibuffer(sensible_self_insert, toc_select, exit_minibuffer,
668 	    NULL, compl_toc, l);
669 	strlcpy(ministate.prompt, "Select heading: ",
670 	    sizeof(ministate.prompt));
671 }
672 
673 void
674 cmd_inc_fill_column(struct buffer *buffer)
675 {
676 	if (fill_column == INT_MAX)
677 		return;
678 
679 	fill_column += 2;
680 	message("fill-column: %d", fill_column);
681 
682 	ui_schedule_redraw();
683 }
684 
685 void
686 cmd_dec_fill_column(struct buffer *buffer)
687 {
688 	if (fill_column == INT_MAX || fill_column < 8)
689 		return;
690 
691 	fill_column -= 2;
692 	message("fill-column: %d", fill_column);
693 
694 	ui_schedule_redraw();
695 }
696 
697 void
698 cmd_olivetti_mode(struct buffer *buffer)
699 {
700 	olivetti_mode = !olivetti_mode;
701 	if (olivetti_mode)
702 		message("olivetti-mode enabled");
703 	else
704 		message("olivetti-mode disabled");
705 
706 	ui_schedule_redraw();
707 }
708 
709 void
710 cmd_mini_delete_char(struct buffer *buffer)
711 {
712 	char *c, *n;
713 
714 	GUARD_READ_ONLY();
715 
716 	minibuffer_taint_hist();
717 
718 	c = utf8_nth(buffer->current_line->line, buffer->cpoff);
719 	if (*c == '\0')
720 		return;
721 	n = utf8_next_cp(c);
722 
723 	memmove(c, n, strlen(n)+1);
724 
725 	recompute_completions(0);
726 }
727 
728 void
729 cmd_mini_delete_backward_char(struct buffer *buffer)
730 {
731 	char *c, *p, *start;
732 
733 	GUARD_READ_ONLY();
734 
735 	minibuffer_taint_hist();
736 
737 	c = utf8_nth(buffer->current_line->line, buffer->cpoff);
738 	start = buffer->current_line->line;
739 	if (c == start)
740 		return;
741 	p = utf8_prev_cp(c-1, start);
742 
743 	memmove(p, c, strlen(c)+1);
744 	buffer->cpoff--;
745 
746 	recompute_completions(0);
747 }
748 
749 void
750 cmd_mini_kill_line(struct buffer *buffer)
751 {
752 	char *c;
753 
754 	GUARD_READ_ONLY();
755 
756 	minibuffer_taint_hist();
757 	c = utf8_nth(buffer->current_line->line, buffer->cpoff);
758 	*c = '\0';
759 
760 	recompute_completions(0);
761 }
762 
763 void
764 cmd_mini_abort(struct buffer *buffer)
765 {
766 	if (!in_minibuffer)
767 		return;
768 
769 	ministate.abortfn();
770 }
771 
772 void
773 cmd_mini_complete_and_exit(struct buffer *buffer)
774 {
775 	if (!in_minibuffer)
776 		return;
777 
778 	minibuffer_taint_hist();
779 	ministate.donefn();
780 }
781 
782 void
783 cmd_mini_previous_history_element(struct buffer *buffer)
784 {
785 	if (ministate.history == NULL) {
786 		message("No history");
787 		return;
788 	}
789 
790 	if (ministate.hist_cur == NULL ||
791 	    (ministate.hist_cur = TAILQ_PREV(ministate.hist_cur, mhisthead, entries)) == NULL) {
792 		ministate.hist_cur = TAILQ_LAST(&ministate.history->head, mhisthead);
793 		ministate.hist_off = ministate.history->len - 1;
794 		if (ministate.hist_cur == NULL)
795 			message("No prev history item");
796 	} else {
797 		ministate.hist_off--;
798 	}
799 
800 	if (ministate.hist_cur != NULL)
801 		buffer->current_line->line = ministate.hist_cur->h;
802 }
803 
804 void
805 cmd_mini_next_history_element(struct buffer *buffer)
806 {
807 	if (ministate.history == NULL) {
808 		message("No history");
809 		return;
810 	}
811 
812 	if (ministate.hist_cur == NULL ||
813 	    (ministate.hist_cur = TAILQ_NEXT(ministate.hist_cur, entries)) == NULL) {
814 		ministate.hist_cur = TAILQ_FIRST(&ministate.history->head);
815 		ministate.hist_off = 0;
816 		if (ministate.hist_cur == NULL)
817 			message("No next history item");
818 	} else {
819 		ministate.hist_off++;
820 	}
821 
822 	if (ministate.hist_cur != NULL)
823 		buffer->current_line->line = ministate.hist_cur->h;
824 }
825 
826 void
827 cmd_previous_completion(struct buffer *buffer)
828 {
829 	if (in_minibuffer != MB_COMPREAD)
830 		return;
831 
832 	buffer = &ministate.compl.buffer;
833 
834 	if (buffer->current_line != NULL)
835 		buffer->current_line->parent->type = LINE_COMPL;
836 
837 	forward_line(buffer, -1);
838 
839 	if (buffer->current_line != NULL)
840 		buffer->current_line->parent->type = LINE_COMPL_CURRENT;
841 }
842 
843 void
844 cmd_next_completion(struct buffer *buffer)
845 {
846 	if (in_minibuffer != MB_COMPREAD)
847 		return;
848 
849 	buffer = &ministate.compl.buffer;
850 
851 	if (buffer->current_line != NULL)
852 		buffer->current_line->parent->type = LINE_COMPL;
853 
854 	forward_line(buffer, +1);
855 
856 	if (buffer->current_line != NULL)
857 		buffer->current_line->parent->type = LINE_COMPL_CURRENT;
858 }
859 
860 void
861 cmd_insert_current_candidate(struct buffer *buffer)
862 {
863 	if (in_minibuffer != MB_COMPREAD)
864 		return;
865 
866 	minibuffer_insert_current_candidate();
867 }
868 
869 void
870 cmd_suspend_telescope(struct buffer *buffer)
871 {
872 	message("Zzz...");
873 	ui_suspend();
874 }
875 
876 void
877 cmd_toggle_pre_wrap(struct buffer *buffer)
878 {
879 	dont_wrap_pre = !dont_wrap_pre;
880 
881 	if (dont_wrap_pre)
882 		message("Don't wrap preformatted blocks");
883 	else
884 		message("Wrap preformatted blocks");
885 
886 	ui_schedule_redraw();
887 }
888 
889 void
890 cmd_mini_goto_beginning(struct buffer *buffer)
891 {
892 	struct vline *vl;
893 
894 	if (!in_minibuffer)
895 		return;
896 
897 	buffer = &ministate.compl.buffer;
898 
899 	if ((vl = buffer->current_line) != NULL)
900 		vl->parent->type = LINE_COMPL;
901 
902 	vl = TAILQ_FIRST(&buffer->head);
903 	while (vl != NULL && vl->parent->flags & L_HIDDEN)
904 		vl = TAILQ_NEXT(vl, vlines);
905 
906 	if (vl == NULL)
907 		return;
908 
909 	vl->parent->type = LINE_COMPL_CURRENT;
910 	buffer->top_line = vl;
911 	buffer->current_line = vl;
912 }
913 
914 void
915 cmd_mini_goto_end(struct buffer *buffer)
916 {
917 	struct vline *vl;
918 
919 	if (!in_minibuffer)
920 		return;
921 
922 	buffer = &ministate.compl.buffer;
923 
924 	if ((vl = buffer->current_line) != NULL)
925 		vl->parent->type = LINE_COMPL;
926 
927 	vl = TAILQ_LAST(&buffer->head, vhead);
928 	while (vl != NULL && vl->parent->flags & L_HIDDEN)
929 		vl = TAILQ_PREV(vl, vhead, vlines);
930 
931 	if (vl == NULL)
932 		return;
933 
934 	vl->parent->type = LINE_COMPL_CURRENT;
935 	buffer->current_line = vl;
936 }
937 
938 void
939 cmd_other_window(struct buffer *buffer)
940 {
941 	ui_other_window();
942 }
943 
944 void
945 cmd_mini_scroll_up(struct buffer *buffer)
946 {
947 	if (!in_minibuffer)
948 		return;
949 
950 	buffer = &ministate.compl.buffer;
951 	if (buffer->current_line == NULL)
952 		return;
953 
954 	buffer->current_line->parent->type = LINE_COMPL;
955 	cmd_scroll_up(buffer);
956 	buffer->current_line->parent->type = LINE_COMPL_CURRENT;
957 }
958 
959 void
960 cmd_mini_scroll_down(struct buffer *buffer)
961 {
962 	if (!in_minibuffer)
963 		return;
964 
965 	buffer = &ministate.compl.buffer;
966 	if (buffer->current_line == NULL)
967 		return;
968 
969 	buffer->current_line->parent->type = LINE_COMPL;
970 	cmd_scroll_down(buffer);
971 	buffer->current_line->parent->type = LINE_COMPL_CURRENT;
972 }
973 
974 void
975 cmd_toggle_downloads(struct buffer *buffer)
976 {
977 	ui_toggle_side_window(SIDE_WINDOW_BOTTOM);
978 }