2 * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
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.
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.
26 #include "minibuffer.h"
28 #include "telescope.h"
33 #define GUARD_RECURSIVE_MINIBUFFER() \
35 if (in_minibuffer) { \
36 message("enable-recursive-minibuffers " \
37 "is not yet available."); \
42 #define GUARD_READ_ONLY() \
44 if (!in_minibuffer) { \
45 message("text is read-only"); \
50 /* return 1 if moved, 0 otherwise */
52 forward_line(struct buffer *buffer, int n)
57 if (buffer->current_line == NULL)
59 vl = buffer->current_line;
64 vl = TAILQ_NEXT(vl, vlines);
67 if (vl->parent->flags & L_HIDDEN)
69 buffer->current_line = vl;
72 vl = TAILQ_PREV(vl, vhead, vlines);
75 if (vl->parent->flags & L_HIDDEN)
77 if (buffer->current_line == buffer->top_line) {
79 buffer->top_line = vl;
81 buffer->current_line = vl;
92 cmd_previous_line(struct buffer *buffer)
94 forward_line(buffer, -1);
98 cmd_next_line(struct buffer *buffer)
100 forward_line(buffer, +1);
104 cmd_backward_char(struct buffer *buffer)
106 if (buffer->cpoff != 0)
111 cmd_forward_char(struct buffer *buffer)
115 if (buffer->current_line == NULL)
118 if (buffer->current_line->line != NULL)
119 len = utf8_cplen(buffer->current_line->line);
120 if (++buffer->cpoff > len)
125 cmd_backward_paragraph(struct buffer *buffer)
128 if (!forward_line(buffer, -1)) {
129 message("No previous paragraph");
132 } while (buffer->current_line->line != NULL ||
133 buffer->current_line->parent->type != LINE_TEXT);
137 cmd_forward_paragraph(struct buffer *buffer)
140 if (!forward_line(buffer, +1)) {
141 message("No next paragraph");
144 } while (buffer->current_line->line != NULL ||
145 buffer->current_line->parent->type != LINE_TEXT);
149 cmd_move_beginning_of_line(struct buffer *buffer)
155 cmd_move_end_of_line(struct buffer *buffer)
159 vl = buffer->current_line;
160 if (vl == NULL || vl->line == NULL)
162 buffer->cpoff = utf8_cplen(vl->line);
166 cmd_redraw(struct buffer *buffer)
168 ui_schedule_redraw();
172 cmd_scroll_line_up(struct buffer *buffer)
177 if (buffer->top_line == NULL)
180 if ((vl = TAILQ_PREV(buffer->top_line, vhead, vlines))
184 buffer->top_line = vl;
186 if (vl->parent->flags & L_HIDDEN)
194 forward_line(buffer, -1);
198 cmd_scroll_line_down(struct buffer *buffer)
200 if (!forward_line(buffer, +1))
204 if (buffer->top_line == NULL)
207 buffer->top_line = TAILQ_NEXT(buffer->top_line, vlines);
208 if (buffer->top_line->parent->flags & L_HIDDEN)
217 cmd_scroll_up(struct buffer *buffer)
222 if (buffer->top_line == NULL)
225 for (i = 0; i < body_lines; ++i) {
226 vl = TAILQ_PREV(buffer->top_line, vhead, vlines);
230 buffer->top_line = vl;
231 forward_line(buffer, -1);
236 cmd_scroll_down(struct buffer *buffer)
240 if (buffer->top_line == NULL)
243 for (i = 0; i < body_lines; ++i) {
244 if (!forward_line(buffer, +1))
247 buffer->top_line = TAILQ_NEXT(buffer->top_line,
254 cmd_beginning_of_buffer(struct buffer *buffer)
256 buffer->current_line = TAILQ_FIRST(&buffer->head);
258 buffer->top_line = buffer->current_line;
259 buffer->line_off = 0;
263 cmd_end_of_buffer(struct buffer *buffer)
265 buffer->current_line = TAILQ_LAST(&buffer->head, vhead);
267 if (buffer->current_line == NULL)
270 /* deal with invisible lines */
271 if (buffer->current_line->parent->flags & L_HIDDEN)
272 forward_line(buffer, -1);
274 cmd_move_end_of_line(buffer);
278 kill_telescope_cb(int r, struct tab *tab)
287 cmd_kill_telescope(struct buffer *buffer)
289 yornp("really quit?", kill_telescope_cb, NULL);
293 cmd_push_button(struct buffer *buffer)
298 vl = buffer->current_line;
303 switch (vl->parent->type) {
305 load_url_in_tab(current_tab, vl->parent->alt, NULL,
309 l = TAILQ_NEXT(vl->parent, lines);
310 for (; l != NULL; l = TAILQ_NEXT(l, lines)) {
311 if (l->type == LINE_PRE_END)
313 l->flags ^= L_HIDDEN;
314 if (l->flags & L_HIDDEN)
326 cmd_push_button_new_tab(struct buffer *buffer)
330 vl = buffer->current_line;
331 if (vl == NULL || vl->parent->type != LINE_LINK)
334 new_tab(vl->parent->alt, current_tab->hist_cur->h, current_tab);
338 cmd_previous_button(struct buffer *buffer)
340 struct excursion place;
342 save_excursion(&place, buffer);
345 if (!forward_line(buffer, -1)) {
346 restore_excursion(&place, buffer);
347 message("No previous link");
350 } while (buffer->current_line->parent->type != LINE_LINK);
354 cmd_next_button(struct buffer *buffer)
356 struct excursion place;
358 save_excursion(&place, buffer);
361 if (!forward_line(buffer, +1)){
362 restore_excursion(&place, buffer);
363 message("No next link");
366 } while (buffer->current_line->parent->type != LINE_LINK);
370 is_heading(const struct line *l)
372 return l->type == LINE_TITLE_1 ||
373 l->type == LINE_TITLE_2 ||
374 l->type == LINE_TITLE_3;
378 cmd_previous_heading(struct buffer *buffer)
380 struct excursion place;
382 save_excursion(&place, buffer);
385 if (!forward_line(buffer, -1)) {
386 restore_excursion(&place, buffer);
387 message("No previous heading");
390 } while (!is_heading(buffer->current_line->parent));
394 cmd_next_heading(struct buffer *buffer)
396 struct excursion place;
398 save_excursion(&place, buffer);
401 if (!forward_line(buffer, +1)) {
402 restore_excursion(&place, buffer);
403 message("No next heading");
406 } while (!is_heading(buffer->current_line->parent));
410 cmd_previous_page(struct buffer *buffer)
412 if (!load_previous_page(current_tab))
413 message("No previous page");
417 cmd_next_page(struct buffer *buffer)
419 if (!load_next_page(current_tab))
420 message("No next page");
424 cmd_clear_minibuf(struct buffer *buffer)
430 cmd_execute_extended_command(struct buffer *buffer)
434 GUARD_RECURSIVE_MINIBUFFER();
436 enter_minibuffer(sensible_self_insert, eecmd_select, exit_minibuffer,
437 &eecmd_history, compl_eecmd, NULL, 1);
439 len = sizeof(ministate.prompt);
440 strlcpy(ministate.prompt, "", len);
443 strlcat(ministate.prompt, "M-", len);
445 strlcat(ministate.prompt, ui_keyname(thiskey.key), len);
448 strlcat(ministate.prompt, " ", len);
452 cmd_tab_close(struct buffer *buffer)
458 if ((t = TAILQ_NEXT(tab, tabs)) != NULL ||
459 (t = TAILQ_PREV(tab, tabshead, tabs)) != NULL) {
463 message("Can't close the only tab.");
468 cmd_tab_close_other(struct buffer *buffer)
472 TAILQ_FOREACH_SAFE(t, &tabshead, tabs, i) {
473 if (t == current_tab)
481 cmd_tab_undo_close(struct buffer *buffer)
485 if ((t = unkill_tab()) == NULL) {
486 message("No recently-closed tabs");
494 cmd_tab_new(struct buffer *buffer)
498 if ((url = new_tab_url) == NULL)
501 new_tab(url, NULL, NULL);
505 cmd_tab_next(struct buffer *buffer)
509 if ((t = TAILQ_NEXT(current_tab, tabs)) == NULL)
510 t = TAILQ_FIRST(&tabshead);
515 cmd_tab_previous(struct buffer *buffer)
519 if ((t = TAILQ_PREV(current_tab, tabshead, tabs)) == NULL)
520 t = TAILQ_LAST(&tabshead, tabshead);
525 cmd_tab_move(struct buffer *buffer)
529 t = TAILQ_NEXT(current_tab, tabs);
530 TAILQ_REMOVE(&tabshead, current_tab, tabs);
533 TAILQ_INSERT_HEAD(&tabshead, current_tab, tabs);
535 TAILQ_INSERT_AFTER(&tabshead, t, current_tab, tabs);
539 cmd_tab_move_to(struct buffer *buffer)
543 t = TAILQ_PREV(current_tab, tabshead, tabs);
544 TAILQ_REMOVE(&tabshead, current_tab, tabs);
547 TAILQ_INSERT_TAIL(&tabshead, current_tab, tabs);
549 TAILQ_INSERT_BEFORE(t, current_tab, tabs);
553 cmd_tab_select(struct buffer *buffer)
555 GUARD_RECURSIVE_MINIBUFFER();
557 enter_minibuffer(sensible_self_insert, ts_select, exit_minibuffer,
558 NULL, compl_ts, NULL, 1);
559 strlcpy(ministate.prompt, "Select tab: ", sizeof(ministate.prompt));
563 cmd_load_url(struct buffer *buffer)
565 GUARD_RECURSIVE_MINIBUFFER();
567 enter_minibuffer(sensible_self_insert, lu_select, exit_minibuffer,
568 &lu_history, compl_lu, NULL, 0);
569 strlcpy(ministate.prompt, "Load URL: ", sizeof(ministate.prompt));
573 cmd_load_current_url(struct buffer *buffer)
575 GUARD_RECURSIVE_MINIBUFFER();
577 enter_minibuffer(sensible_self_insert, lu_select, exit_minibuffer,
578 &lu_history, compl_lu, NULL, 0);
579 strlcpy(ministate.prompt, "Load URL: ", sizeof(ministate.prompt));
580 strlcpy(ministate.buf, current_tab->hist_cur->h, sizeof(ministate.buf));
581 ministate.buffer.cpoff = utf8_cplen(ministate.buf);
585 cmd_reload_page(struct buffer *buffer)
587 load_url_in_tab(current_tab, current_tab->hist_cur->h, NULL,
588 LU_MODE_NOHIST|LU_MODE_NOCACHE);
592 cmd_bookmark_page(struct buffer *buffer)
594 GUARD_RECURSIVE_MINIBUFFER();
596 enter_minibuffer(sensible_self_insert, bp_select, exit_minibuffer, NULL,
598 strlcpy(ministate.prompt, "Bookmark URL: ", sizeof(ministate.prompt));
599 strlcpy(ministate.buf, current_tab->hist_cur->h, sizeof(ministate.buf));
600 ministate.buffer.cpoff = utf8_cplen(ministate.buf);
604 cmd_list_bookmarks(struct buffer *buffer)
606 load_url_in_tab(current_tab, "about:bookmarks", NULL, LU_MODE_NONE);
610 cmd_toggle_help(struct buffer *buffer)
612 ui_toggle_side_window(SIDE_WINDOW_LEFT);
616 cmd_link_select(struct buffer *buffer)
620 GUARD_RECURSIVE_MINIBUFFER();
622 l = TAILQ_FIRST(&buffer->page.head);
623 while (l != NULL && l->type != LINE_LINK)
624 l = TAILQ_NEXT(l, lines);
627 message("No links found");
631 enter_minibuffer(sensible_self_insert, ls_select, exit_minibuffer,
632 NULL, compl_ls, l, 1);
633 strlcpy(ministate.prompt, "Select link: ", sizeof(ministate.prompt));
637 cmd_swiper(struct buffer *buffer)
639 GUARD_RECURSIVE_MINIBUFFER();
641 enter_minibuffer(sensible_self_insert, swiper_select, exit_minibuffer,
642 NULL, compl_swiper, TAILQ_FIRST(&buffer->page.head), 1);
643 strlcpy(ministate.prompt, "Select line: ", sizeof(ministate.prompt));
647 cmd_toc(struct buffer *buffer)
651 GUARD_RECURSIVE_MINIBUFFER();
653 l = TAILQ_FIRST(&buffer->page.head);
655 l->type != LINE_TITLE_1 &&
656 l->type != LINE_TITLE_2 &&
657 l->type != LINE_TITLE_3)
658 l = TAILQ_NEXT(l, lines);
661 message("No headings found");
665 enter_minibuffer(sensible_self_insert, toc_select, exit_minibuffer,
666 NULL, compl_toc, l, 1);
667 strlcpy(ministate.prompt, "Select heading: ",
668 sizeof(ministate.prompt));
672 cmd_inc_fill_column(struct buffer *buffer)
674 if (fill_column == INT_MAX)
678 message("fill-column: %d", fill_column);
680 ui_schedule_redraw();
684 cmd_dec_fill_column(struct buffer *buffer)
686 if (fill_column == INT_MAX || fill_column < 8)
690 message("fill-column: %d", fill_column);
692 ui_schedule_redraw();
696 cmd_olivetti_mode(struct buffer *buffer)
698 olivetti_mode = !olivetti_mode;
700 message("olivetti-mode enabled");
702 message("olivetti-mode disabled");
704 ui_schedule_redraw();
708 cmd_mini_delete_char(struct buffer *buffer)
714 minibuffer_taint_hist();
716 c = utf8_nth(buffer->current_line->line, buffer->cpoff);
721 memmove(c, n, strlen(n)+1);
723 recompute_completions(0);
727 cmd_mini_delete_backward_char(struct buffer *buffer)
733 minibuffer_taint_hist();
735 c = utf8_nth(buffer->current_line->line, buffer->cpoff);
736 start = buffer->current_line->line;
739 p = utf8_prev_cp(c-1, start);
741 memmove(p, c, strlen(c)+1);
744 recompute_completions(0);
748 cmd_mini_kill_line(struct buffer *buffer)
754 minibuffer_taint_hist();
755 c = utf8_nth(buffer->current_line->line, buffer->cpoff);
758 recompute_completions(0);
762 cmd_mini_kill_whole_line(struct buffer *buffer)
766 minibuffer_taint_hist();
767 *buffer->current_line->line = '\0';
772 cmd_mini_abort(struct buffer *buffer)
781 cmd_mini_complete_and_exit(struct buffer *buffer)
788 if (ministate.compl.must_select && ministate.hist_cur == NULL) {
789 vl = ministate.compl.buffer.current_line;
790 if (vl == NULL || vl->parent->flags & L_HIDDEN ||
791 vl->parent->type == LINE_COMPL) {
797 minibuffer_taint_hist();
802 cmd_mini_previous_history_element(struct buffer *buffer)
804 if (ministate.history == NULL) {
805 message("No history");
809 if (ministate.hist_cur == NULL ||
810 (ministate.hist_cur = TAILQ_PREV(ministate.hist_cur, mhisthead, entries)) == NULL) {
811 ministate.hist_cur = TAILQ_LAST(&ministate.history->head, mhisthead);
812 ministate.hist_off = ministate.history->len - 1;
813 if (ministate.hist_cur == NULL)
814 message("No prev history item");
816 ministate.hist_off--;
819 if (ministate.hist_cur != NULL) {
820 buffer->current_line->line = ministate.hist_cur->h;
821 recompute_completions(0);
826 cmd_mini_next_history_element(struct buffer *buffer)
828 if (ministate.history == NULL) {
829 message("No history");
833 if (ministate.hist_cur == NULL ||
834 (ministate.hist_cur = TAILQ_NEXT(ministate.hist_cur, entries)) == NULL) {
835 ministate.hist_cur = TAILQ_FIRST(&ministate.history->head);
836 ministate.hist_off = 0;
837 if (ministate.hist_cur == NULL)
838 message("No next history item");
840 ministate.hist_off++;
843 if (ministate.hist_cur != NULL) {
844 buffer->current_line->line = ministate.hist_cur->h;
845 recompute_completions(0);
850 cmd_previous_completion(struct buffer *buffer)
852 if (in_minibuffer != MB_COMPREAD)
855 buffer = &ministate.compl.buffer;
856 if (buffer->current_line == NULL)
859 buffer->current_line->parent->type = LINE_COMPL;
860 if (!forward_line(buffer, -1))
861 buffer->current_line->parent->type = LINE_COMPL;
863 buffer->current_line->parent->type = LINE_COMPL_CURRENT;
867 cmd_next_completion(struct buffer *buffer)
869 if (in_minibuffer != MB_COMPREAD)
872 buffer = &ministate.compl.buffer;
873 if (buffer->current_line == NULL)
876 if (buffer->current_line->parent->type == LINE_COMPL_CURRENT) {
877 buffer->current_line->parent->type = LINE_COMPL;
878 forward_line(buffer, +1);
881 if (buffer->current_line != NULL)
882 buffer->current_line->parent->type = LINE_COMPL_CURRENT;
886 cmd_insert_current_candidate(struct buffer *buffer)
888 if (in_minibuffer != MB_COMPREAD)
891 minibuffer_insert_current_candidate();
895 cmd_suspend_telescope(struct buffer *buffer)
902 cmd_toggle_pre_wrap(struct buffer *buffer)
904 dont_wrap_pre = !dont_wrap_pre;
907 message("Don't wrap preformatted blocks");
909 message("Wrap preformatted blocks");
911 ui_schedule_redraw();
915 cmd_mini_goto_beginning(struct buffer *buffer)
922 buffer = &ministate.compl.buffer;
924 if ((vl = buffer->current_line) != NULL)
925 vl->parent->type = LINE_COMPL;
927 vl = TAILQ_FIRST(&buffer->head);
928 while (vl != NULL && vl->parent->flags & L_HIDDEN)
929 vl = TAILQ_NEXT(vl, vlines);
934 vl->parent->type = LINE_COMPL_CURRENT;
935 buffer->top_line = vl;
936 buffer->current_line = vl;
940 cmd_mini_goto_end(struct buffer *buffer)
947 buffer = &ministate.compl.buffer;
949 if ((vl = buffer->current_line) != NULL)
950 vl->parent->type = LINE_COMPL;
952 vl = TAILQ_LAST(&buffer->head, vhead);
953 while (vl != NULL && vl->parent->flags & L_HIDDEN)
954 vl = TAILQ_PREV(vl, vhead, vlines);
959 vl->parent->type = LINE_COMPL_CURRENT;
960 buffer->current_line = vl;
964 cmd_other_window(struct buffer *buffer)
970 cmd_mini_scroll_up(struct buffer *buffer)
975 buffer = &ministate.compl.buffer;
976 if (buffer->current_line == NULL)
979 buffer->current_line->parent->type = LINE_COMPL;
980 cmd_scroll_up(buffer);
981 buffer->current_line->parent->type = LINE_COMPL_CURRENT;
985 cmd_mini_scroll_down(struct buffer *buffer)
990 buffer = &ministate.compl.buffer;
991 if (buffer->current_line == NULL)
994 buffer->current_line->parent->type = LINE_COMPL;
995 cmd_scroll_down(buffer);
996 buffer->current_line->parent->type = LINE_COMPL_CURRENT;
1000 cmd_toggle_downloads(struct buffer *buffer)
1002 ui_toggle_side_window(SIDE_WINDOW_BOTTOM);
1006 cmd_cache_info(struct buffer *buffer)
1009 char fmt[FMT_SCALED_STRSIZE];
1011 mcache_info(&npages, &tot);
1013 if (fmt_scaled(tot, fmt) == 0)
1014 message("pages: %zu, total: %s", npages, fmt);
1016 message("pages: %zu, total: %zu", npages, tot);
1020 cmd_reply_last_input(struct buffer *buffer)
1022 GUARD_RECURSIVE_MINIBUFFER();
1024 if (current_tab->last_input_url == NULL) {
1025 message("there was no previous input request in this tab");
1029 if (!strncmp(current_tab->last_input_url, "gopher", 6)) {
1030 load_url_in_tab(current_tab, current_tab->last_input_url,
1031 NULL, LU_MODE_NOCACHE);
1035 message("%s", current_tab->last_input_url);
1036 ui_require_input(current_tab, 0, ir_select_reply);
1040 cmd_write_buffer(struct buffer *buffer)
1042 const char *f, *url;
1043 char path[PATH_MAX];
1045 GUARD_RECURSIVE_MINIBUFFER();
1048 message("Can't write buffer in safe-mode.");
1052 url = current_tab->hist_cur->h;
1054 if ((f = strrchr(url, '/')) != NULL)
1056 if (f == NULL || *f == '\0') {
1057 /* guess a decent file name based on the protocol used */
1058 if (!strncmp(url, "gemini://", 9))
1064 strlcpy(path, download_path, sizeof(path));
1065 strlcat(path, f, sizeof(path));
1067 ui_read("Write file", write_buffer, current_tab, path);