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.
20 #include "telescope.h"
23 cmd_previous_line(struct buffer *buffer)
27 if (buffer->current_line == NULL
28 || (vl = TAILQ_PREV(buffer->current_line, vhead, vlines)) == NULL)
31 if (--buffer->curs_y < 0) {
33 cmd_scroll_line_up(buffer);
37 buffer->current_line = vl;
38 restore_cursor(buffer);
42 cmd_next_line(struct buffer *buffer)
46 if (buffer->current_line == NULL
47 || (vl = TAILQ_NEXT(buffer->current_line, vlines)) == NULL)
50 if (++buffer->curs_y > body_lines-1) {
51 buffer->curs_y = body_lines-1;
52 cmd_scroll_line_down(buffer);
56 buffer->current_line = vl;
57 restore_cursor(buffer);
61 cmd_backward_char(struct buffer *buffer)
63 if (buffer->cpoff != 0)
65 restore_cursor(buffer);
69 cmd_forward_char(struct buffer *buffer)
73 if (buffer->current_line->line != NULL)
74 len = utf8_cplen(buffer->current_line->line);
75 if (++buffer->cpoff > len)
77 restore_cursor(buffer);
81 cmd_backward_paragraph(struct buffer *buffer)
84 if (buffer->current_line == NULL ||
85 buffer->current_line == TAILQ_FIRST(&buffer->head)) {
86 message("No previous paragraph");
89 cmd_previous_line(buffer);
90 } while (buffer->current_line->line != NULL ||
91 buffer->current_line->parent->type != LINE_TEXT);
95 cmd_forward_paragraph(struct buffer *buffer)
98 if (buffer->current_line == NULL ||
99 buffer->current_line == TAILQ_LAST(&buffer->head, vhead)) {
100 message("No next paragraph");
103 cmd_next_line(buffer);
104 } while (buffer->current_line->line != NULL ||
105 buffer->current_line->parent->type != LINE_TEXT);
109 cmd_move_beginning_of_line(struct buffer *buffer)
112 restore_cursor(buffer);
116 cmd_move_end_of_line(struct buffer *buffer)
120 vl = buffer->current_line;
121 if (vl->line == NULL)
123 buffer->cpoff = utf8_cplen(vl->line);
124 restore_cursor(buffer);
128 cmd_redraw(struct buffer *buffer)
130 ui_schedule_redraw();
134 cmd_scroll_line_up(struct buffer *buffer)
136 if (buffer->current_line == NULL)
139 if (buffer->line_off == 0)
143 buffer->current_line = TAILQ_PREV(buffer->current_line, vhead, vlines);
144 restore_cursor(buffer);
148 cmd_scroll_line_down(struct buffer *buffer)
152 if (buffer->current_line == NULL)
155 if ((vl = TAILQ_NEXT(buffer->current_line, vlines)) == NULL)
158 buffer->current_line = vl;
160 restore_cursor(buffer);
164 cmd_scroll_up(struct buffer *buffer)
170 for (; off > 0; --off)
171 cmd_scroll_line_up(buffer);
175 cmd_scroll_down(struct buffer *buffer)
181 for (; off > 0; --off)
182 cmd_scroll_line_down(buffer);
186 cmd_beginning_of_buffer(struct buffer *buffer)
188 buffer->current_line = TAILQ_FIRST(&buffer->head);
189 buffer->line_off = 0;
192 restore_cursor(buffer);
196 cmd_end_of_buffer(struct buffer *buffer)
200 off = buffer->line_max - body_lines;
203 buffer->line_off = off;
204 buffer->curs_y = MIN((size_t)body_lines-1, buffer->line_max-1);
206 buffer->current_line = TAILQ_LAST(&buffer->head, vhead);
207 buffer->cpoff = body_cols;
208 restore_cursor(buffer);
212 cmd_kill_telescope(struct buffer *buffer)
219 cmd_push_button(struct buffer *buffer)
223 vl = buffer->current_line;
224 if (vl->parent->type != LINE_LINK)
227 load_url_in_tab(current_tab(), vl->parent->alt);
231 cmd_push_button_new_tab(struct buffer *buffer)
235 vl = buffer->current_line;
236 if (vl->parent->type != LINE_LINK)
239 new_tab(vl->parent->alt);
243 cmd_previous_button(struct buffer *buffer)
245 struct excursion place;
247 save_excursion(&place, buffer);
250 if (buffer->current_line == NULL ||
251 buffer->current_line == TAILQ_FIRST(&buffer->head)) {
252 restore_excursion(&place, buffer);
253 message("No previous link");
256 cmd_previous_line(buffer);
257 } while (buffer->current_line->parent->type != LINE_LINK);
261 cmd_next_button(struct buffer *buffer)
263 struct excursion place;
265 save_excursion(&place, buffer);
268 if (buffer->current_line == NULL ||
269 buffer->current_line == TAILQ_LAST(&buffer->head, vhead)) {
270 restore_excursion(&place, buffer);
271 message("No next link");
274 cmd_next_line(buffer);
275 } while (buffer->current_line->parent->type != LINE_LINK);
279 is_heading(const struct line *l)
281 return l->type == LINE_TITLE_1 ||
282 l->type == LINE_TITLE_2 ||
283 l->type == LINE_TITLE_3;
287 cmd_previous_heading(struct buffer *buffer)
289 struct excursion place;
291 save_excursion(&place, buffer);
294 if (buffer->current_line == NULL ||
295 buffer->current_line == TAILQ_FIRST(&buffer->head)) {
296 restore_excursion(&place, buffer);
297 message("No previous heading");
300 cmd_previous_line(buffer);
301 } while (!is_heading(buffer->current_line->parent));
305 cmd_next_heading(struct buffer *buffer)
307 struct excursion place;
309 save_excursion(&place, buffer);
312 if (buffer->current_line == NULL ||
313 buffer->current_line == TAILQ_LAST(&buffer->head, vhead)) {
314 restore_excursion(&place, buffer);
315 message("No next heading");
318 cmd_next_line(buffer);
319 } while (!is_heading(buffer->current_line->parent));
323 cmd_previous_page(struct buffer *buffer)
325 struct tab *tab = current_tab();
327 if (!load_previous_page(tab))
328 message("No previous page");
330 start_loading_anim(tab);
334 cmd_next_page(struct buffer *buffer)
336 struct tab *tab = current_tab();
338 if (!load_next_page(tab))
339 message("No next page");
341 start_loading_anim(tab);
345 cmd_clear_minibuf(struct buffer *buffer)
351 cmd_execute_extended_command(struct buffer *buffer)
356 message("We don't have enable-recursive-minibuffers");
360 enter_minibuffer(eecmd_self_insert, eecmd_select, exit_minibuffer,
363 len = sizeof(ministate.prompt);
364 strlcpy(ministate.prompt, "", len);
367 strlcat(ministate.prompt, "M-", len);
369 strlcat(ministate.prompt, ui_keyname(thiskey.key), len);
372 strlcat(ministate.prompt, " ", len);
376 cmd_tab_close(struct buffer *buffer)
381 if (TAILQ_PREV(tab, tabshead, tabs) == NULL &&
382 TAILQ_NEXT(tab, tabs) == NULL) {
383 message("Can't close the only tab.");
387 if (evtimer_pending(&tab->loadingev, NULL))
388 evtimer_del(&tab->loadingev);
392 if ((t = TAILQ_PREV(tab, tabshead, tabs)) == NULL)
393 t = TAILQ_NEXT(tab, tabs);
394 TAILQ_REMOVE(&tabshead, tab, tabs);
401 cmd_tab_close_other(struct buffer *buffer)
405 TAILQ_FOREACH_SAFE(t, &tabshead, tabs, i) {
406 if (t->flags & TAB_CURRENT)
410 TAILQ_REMOVE(&tabshead, t, tabs);
416 cmd_tab_new(struct buffer *buffer)
420 if ((url = new_tab_url) == NULL)
427 cmd_tab_next(struct buffer *buffer)
432 tab->flags &= ~TAB_CURRENT;
434 if ((t = TAILQ_NEXT(tab, tabs)) == NULL)
435 t = TAILQ_FIRST(&tabshead);
436 t->flags |= TAB_CURRENT;
437 t->flags &= ~TAB_URGENT;
441 cmd_tab_previous(struct buffer *buffer)
446 tab->flags &= ~TAB_CURRENT;
448 if ((t = TAILQ_PREV(tab, tabshead, tabs)) == NULL)
449 t = TAILQ_LAST(&tabshead, tabshead);
450 t->flags |= TAB_CURRENT;
451 t->flags &= ~TAB_URGENT;
455 cmd_tab_move(struct buffer *buffer)
460 t = TAILQ_NEXT(tab, tabs);
461 TAILQ_REMOVE(&tabshead, tab, tabs);
464 TAILQ_INSERT_HEAD(&tabshead, tab, tabs);
466 TAILQ_INSERT_AFTER(&tabshead, t, tab, tabs);
470 cmd_tab_move_to(struct buffer *buffer)
475 t = TAILQ_PREV(tab, tabshead, tabs);
476 TAILQ_REMOVE(&tabshead, tab, tabs);
479 if (TAILQ_EMPTY(&tabshead))
480 TAILQ_INSERT_HEAD(&tabshead, tab, tabs);
482 TAILQ_INSERT_TAIL(&tabshead, tab, tabs);
484 TAILQ_INSERT_BEFORE(t, tab, tabs);
488 cmd_load_url(struct buffer *buffer)
491 message("We don't have enable-recursive-minibuffers");
495 enter_minibuffer(lu_self_insert, lu_select, exit_minibuffer,
497 strlcpy(ministate.prompt, "Load URL: ", sizeof(ministate.prompt));
498 strlcpy(ministate.buf, "gemini://", sizeof(ministate.buf));
499 cmd_move_end_of_line(&ministate.buffer);
503 cmd_load_current_url(struct buffer *buffer)
505 struct tab *tab = current_tab();
508 message("We don't have enable-recursive-minibuffers");
512 enter_minibuffer(lu_self_insert, lu_select, exit_minibuffer,
514 strlcpy(ministate.prompt, "Load URL: ", sizeof(ministate.prompt));
515 strlcpy(ministate.buf, tab->hist_cur->h, sizeof(ministate.buf));
516 ministate.buffer.cpoff = utf8_cplen(ministate.buf);
520 cmd_bookmark_page(struct buffer *buffer)
522 struct tab *tab = current_tab();
524 enter_minibuffer(lu_self_insert, bp_select, exit_minibuffer, NULL);
525 strlcpy(ministate.prompt, "Bookmark URL: ", sizeof(ministate.prompt));
526 strlcpy(ministate.buf, tab->hist_cur->h, sizeof(ministate.buf));
527 ministate.buffer.cpoff = utf8_cplen(ministate.buf);
531 cmd_list_bookmarks(struct buffer *buffer)
533 load_url_in_tab(current_tab(), "about:bookmarks");
537 cmd_toggle_help(struct buffer *buffer)
539 ui_toggle_side_window();
543 cmd_olivetti_mode(struct buffer *buffer)
545 olivetti_mode = !olivetti_mode;
547 message("olivetti-mode enabled");
549 message("olivetti-mode disabled");
551 ui_schedule_redraw();
555 cmd_mini_delete_char(struct buffer *buffer)
559 if (!in_minibuffer) {
560 message("text is read-only");
564 minibuffer_taint_hist();
566 c = utf8_nth(buffer->current_line->line, buffer->cpoff);
571 memmove(c, n, strlen(n)+1);
575 cmd_mini_delete_backward_char(struct buffer *buffer)
579 if (!in_minibuffer) {
580 message("text is read-only");
584 minibuffer_taint_hist();
586 c = utf8_nth(buffer->current_line->line, buffer->cpoff);
587 start = buffer->current_line->line;
590 p = utf8_prev_cp(c-1, start);
592 memmove(p, c, strlen(c)+1);
597 cmd_mini_kill_line(struct buffer *buffer)
601 if (!in_minibuffer) {
602 message("text is read-only");
606 minibuffer_taint_hist();
607 c = utf8_nth(buffer->current_line->line, buffer->cpoff);
612 cmd_mini_abort(struct buffer *buffer)
621 cmd_mini_complete_and_exit(struct buffer *buffer)
626 minibuffer_taint_hist();
631 cmd_mini_previous_history_element(struct buffer *buffer)
633 if (ministate.history == NULL) {
634 message("No history");
638 if (ministate.hist_cur == NULL ||
639 (ministate.hist_cur = TAILQ_PREV(ministate.hist_cur, mhisthead, entries)) == NULL) {
640 ministate.hist_cur = TAILQ_LAST(&ministate.history->head, mhisthead);
641 ministate.hist_off = ministate.history->len - 1;
642 if (ministate.hist_cur == NULL)
643 message("No prev item");
645 ministate.hist_off--;
648 if (ministate.hist_cur != NULL)
649 buffer->current_line->line = ministate.hist_cur->h;
653 cmd_mini_next_history_element(struct buffer *buffer)
655 if (ministate.history == NULL) {
656 message("No history");
660 if (ministate.hist_cur == NULL ||
661 (ministate.hist_cur = TAILQ_NEXT(ministate.hist_cur, entries)) == NULL) {
662 ministate.hist_cur = TAILQ_FIRST(&ministate.history->head);
663 ministate.hist_off = 0;
664 if (ministate.hist_cur == NULL)
665 message("No next item");
667 ministate.hist_off++;
670 if (ministate.hist_cur != NULL)
671 buffer->current_line->line = ministate.hist_cur->h;