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"
24 cmd_previous_line(struct buffer *buffer)
28 if (buffer->current_line == NULL
29 || (vl = TAILQ_PREV(buffer->current_line, vhead, vlines)) == NULL)
32 if (--buffer->curs_y < 0) {
34 cmd_scroll_line_up(buffer);
38 buffer->current_line = vl;
39 restore_cursor(buffer);
43 cmd_next_line(struct buffer *buffer)
47 if (buffer->current_line == NULL
48 || (vl = TAILQ_NEXT(buffer->current_line, vlines)) == NULL)
51 if (++buffer->curs_y > body_lines-1) {
52 buffer->curs_y = body_lines-1;
53 cmd_scroll_line_down(buffer);
57 buffer->current_line = vl;
58 restore_cursor(buffer);
62 cmd_backward_char(struct buffer *buffer)
64 if (buffer->cpoff != 0)
66 restore_cursor(buffer);
70 cmd_forward_char(struct buffer *buffer)
74 if (buffer->current_line->line != NULL)
75 len = utf8_cplen(buffer->current_line->line);
76 if (++buffer->cpoff > len)
78 restore_cursor(buffer);
82 cmd_backward_paragraph(struct buffer *buffer)
85 if (buffer->current_line == NULL ||
86 buffer->current_line == TAILQ_FIRST(&buffer->head)) {
87 message("No previous paragraph");
90 cmd_previous_line(buffer);
91 } while (buffer->current_line->line != NULL ||
92 buffer->current_line->parent->type != LINE_TEXT);
96 cmd_forward_paragraph(struct buffer *buffer)
99 if (buffer->current_line == NULL ||
100 buffer->current_line == TAILQ_LAST(&buffer->head, vhead)) {
101 message("No next paragraph");
104 cmd_next_line(buffer);
105 } while (buffer->current_line->line != NULL ||
106 buffer->current_line->parent->type != LINE_TEXT);
110 cmd_move_beginning_of_line(struct buffer *buffer)
113 restore_cursor(buffer);
117 cmd_move_end_of_line(struct buffer *buffer)
121 vl = buffer->current_line;
122 if (vl->line == NULL)
124 buffer->cpoff = utf8_cplen(vl->line);
125 restore_cursor(buffer);
129 cmd_redraw(struct buffer *buffer)
131 ui_schedule_redraw();
135 cmd_scroll_line_up(struct buffer *buffer)
137 if (buffer->current_line == NULL)
140 if (buffer->line_off == 0)
144 buffer->current_line = TAILQ_PREV(buffer->current_line, vhead, vlines);
145 restore_cursor(buffer);
149 cmd_scroll_line_down(struct buffer *buffer)
153 if (buffer->current_line == NULL)
156 if ((vl = TAILQ_NEXT(buffer->current_line, vlines)) == NULL)
159 buffer->current_line = vl;
161 restore_cursor(buffer);
165 cmd_scroll_up(struct buffer *buffer)
171 for (; off > 0; --off)
172 cmd_scroll_line_up(buffer);
176 cmd_scroll_down(struct buffer *buffer)
182 for (; off > 0; --off)
183 cmd_scroll_line_down(buffer);
187 cmd_beginning_of_buffer(struct buffer *buffer)
189 buffer->current_line = TAILQ_FIRST(&buffer->head);
190 buffer->line_off = 0;
193 restore_cursor(buffer);
197 cmd_end_of_buffer(struct buffer *buffer)
201 off = buffer->line_max - body_lines;
204 buffer->line_off = off;
205 buffer->curs_y = MIN((size_t)body_lines-1, buffer->line_max-1);
207 buffer->current_line = TAILQ_LAST(&buffer->head, vhead);
208 buffer->cpoff = body_cols;
209 restore_cursor(buffer);
213 cmd_kill_telescope(struct buffer *buffer)
220 cmd_push_button(struct buffer *buffer)
224 vl = buffer->current_line;
225 if (vl->parent->type != LINE_LINK)
228 load_url_in_tab(current_tab(), vl->parent->alt);
232 cmd_push_button_new_tab(struct buffer *buffer)
236 vl = buffer->current_line;
237 if (vl->parent->type != LINE_LINK)
240 new_tab(vl->parent->alt);
244 cmd_previous_button(struct buffer *buffer)
246 struct excursion place;
248 save_excursion(&place, buffer);
251 if (buffer->current_line == NULL ||
252 buffer->current_line == TAILQ_FIRST(&buffer->head)) {
253 restore_excursion(&place, buffer);
254 message("No previous link");
257 cmd_previous_line(buffer);
258 } while (buffer->current_line->parent->type != LINE_LINK);
262 cmd_next_button(struct buffer *buffer)
264 struct excursion place;
266 save_excursion(&place, buffer);
269 if (buffer->current_line == NULL ||
270 buffer->current_line == TAILQ_LAST(&buffer->head, vhead)) {
271 restore_excursion(&place, buffer);
272 message("No next link");
275 cmd_next_line(buffer);
276 } while (buffer->current_line->parent->type != LINE_LINK);
280 is_heading(const struct line *l)
282 return l->type == LINE_TITLE_1 ||
283 l->type == LINE_TITLE_2 ||
284 l->type == LINE_TITLE_3;
288 cmd_previous_heading(struct buffer *buffer)
290 struct excursion place;
292 save_excursion(&place, buffer);
295 if (buffer->current_line == NULL ||
296 buffer->current_line == TAILQ_FIRST(&buffer->head)) {
297 restore_excursion(&place, buffer);
298 message("No previous heading");
301 cmd_previous_line(buffer);
302 } while (!is_heading(buffer->current_line->parent));
306 cmd_next_heading(struct buffer *buffer)
308 struct excursion place;
310 save_excursion(&place, buffer);
313 if (buffer->current_line == NULL ||
314 buffer->current_line == TAILQ_LAST(&buffer->head, vhead)) {
315 restore_excursion(&place, buffer);
316 message("No next heading");
319 cmd_next_line(buffer);
320 } while (!is_heading(buffer->current_line->parent));
324 cmd_previous_page(struct buffer *buffer)
326 struct tab *tab = current_tab();
328 if (!load_previous_page(tab))
329 message("No previous page");
331 start_loading_anim(tab);
335 cmd_next_page(struct buffer *buffer)
337 struct tab *tab = current_tab();
339 if (!load_next_page(tab))
340 message("No next page");
342 start_loading_anim(tab);
346 cmd_clear_minibuf(struct buffer *buffer)
352 cmd_execute_extended_command(struct buffer *buffer)
357 message("We don't have enable-recursive-minibuffers");
361 enter_minibuffer(eecmd_self_insert, eecmd_select, exit_minibuffer,
364 len = sizeof(ministate.prompt);
365 strlcpy(ministate.prompt, "", len);
368 strlcat(ministate.prompt, "M-", len);
370 strlcat(ministate.prompt, ui_keyname(thiskey.key), len);
373 strlcat(ministate.prompt, " ", len);
377 cmd_tab_close(struct buffer *buffer)
382 if (TAILQ_PREV(tab, tabshead, tabs) == NULL &&
383 TAILQ_NEXT(tab, tabs) == NULL) {
384 message("Can't close the only tab.");
388 if (evtimer_pending(&tab->loadingev, NULL))
389 evtimer_del(&tab->loadingev);
393 if ((t = TAILQ_PREV(tab, tabshead, tabs)) == NULL)
394 t = TAILQ_NEXT(tab, tabs);
395 TAILQ_REMOVE(&tabshead, tab, tabs);
402 cmd_tab_close_other(struct buffer *buffer)
406 TAILQ_FOREACH_SAFE(t, &tabshead, tabs, i) {
407 if (t->flags & TAB_CURRENT)
411 TAILQ_REMOVE(&tabshead, t, tabs);
417 cmd_tab_new(struct buffer *buffer)
421 if ((url = new_tab_url) == NULL)
428 cmd_tab_next(struct buffer *buffer)
433 tab->flags &= ~TAB_CURRENT;
435 if ((t = TAILQ_NEXT(tab, tabs)) == NULL)
436 t = TAILQ_FIRST(&tabshead);
437 t->flags |= TAB_CURRENT;
438 t->flags &= ~TAB_URGENT;
442 cmd_tab_previous(struct buffer *buffer)
447 tab->flags &= ~TAB_CURRENT;
449 if ((t = TAILQ_PREV(tab, tabshead, tabs)) == NULL)
450 t = TAILQ_LAST(&tabshead, tabshead);
451 t->flags |= TAB_CURRENT;
452 t->flags &= ~TAB_URGENT;
456 cmd_tab_move(struct buffer *buffer)
461 t = TAILQ_NEXT(tab, tabs);
462 TAILQ_REMOVE(&tabshead, tab, tabs);
465 TAILQ_INSERT_HEAD(&tabshead, tab, tabs);
467 TAILQ_INSERT_AFTER(&tabshead, t, tab, tabs);
471 cmd_tab_move_to(struct buffer *buffer)
476 t = TAILQ_PREV(tab, tabshead, tabs);
477 TAILQ_REMOVE(&tabshead, tab, tabs);
480 if (TAILQ_EMPTY(&tabshead))
481 TAILQ_INSERT_HEAD(&tabshead, tab, tabs);
483 TAILQ_INSERT_TAIL(&tabshead, tab, tabs);
485 TAILQ_INSERT_BEFORE(t, tab, tabs);
489 cmd_load_url(struct buffer *buffer)
492 message("We don't have enable-recursive-minibuffers");
496 enter_minibuffer(lu_self_insert, lu_select, exit_minibuffer,
498 strlcpy(ministate.prompt, "Load URL: ", sizeof(ministate.prompt));
499 strlcpy(ministate.buf, "gemini://", sizeof(ministate.buf));
500 cmd_move_end_of_line(&ministate.buffer);
504 cmd_load_current_url(struct buffer *buffer)
506 struct tab *tab = current_tab();
509 message("We don't have enable-recursive-minibuffers");
513 enter_minibuffer(lu_self_insert, lu_select, exit_minibuffer,
515 strlcpy(ministate.prompt, "Load URL: ", sizeof(ministate.prompt));
516 strlcpy(ministate.buf, tab->hist_cur->h, sizeof(ministate.buf));
517 ministate.buffer.cpoff = utf8_cplen(ministate.buf);
521 cmd_bookmark_page(struct buffer *buffer)
523 struct tab *tab = current_tab();
525 enter_minibuffer(lu_self_insert, bp_select, exit_minibuffer, NULL);
526 strlcpy(ministate.prompt, "Bookmark URL: ", sizeof(ministate.prompt));
527 strlcpy(ministate.buf, tab->hist_cur->h, sizeof(ministate.buf));
528 ministate.buffer.cpoff = utf8_cplen(ministate.buf);
532 cmd_list_bookmarks(struct buffer *buffer)
534 load_url_in_tab(current_tab(), "about:bookmarks");
538 cmd_toggle_help(struct buffer *buffer)
540 ui_toggle_side_window();
544 cmd_olivetti_mode(struct buffer *buffer)
546 olivetti_mode = !olivetti_mode;
548 message("olivetti-mode enabled");
550 message("olivetti-mode disabled");
552 ui_schedule_redraw();
556 cmd_mini_delete_char(struct buffer *buffer)
560 if (!in_minibuffer) {
561 message("text is read-only");
565 minibuffer_taint_hist();
567 c = utf8_nth(buffer->current_line->line, buffer->cpoff);
572 memmove(c, n, strlen(n)+1);
576 cmd_mini_delete_backward_char(struct buffer *buffer)
580 if (!in_minibuffer) {
581 message("text is read-only");
585 minibuffer_taint_hist();
587 c = utf8_nth(buffer->current_line->line, buffer->cpoff);
588 start = buffer->current_line->line;
591 p = utf8_prev_cp(c-1, start);
593 memmove(p, c, strlen(c)+1);
598 cmd_mini_kill_line(struct buffer *buffer)
602 if (!in_minibuffer) {
603 message("text is read-only");
607 minibuffer_taint_hist();
608 c = utf8_nth(buffer->current_line->line, buffer->cpoff);
613 cmd_mini_abort(struct buffer *buffer)
622 cmd_mini_complete_and_exit(struct buffer *buffer)
627 minibuffer_taint_hist();
632 cmd_mini_previous_history_element(struct buffer *buffer)
634 if (ministate.history == NULL) {
635 message("No history");
639 if (ministate.hist_cur == NULL ||
640 (ministate.hist_cur = TAILQ_PREV(ministate.hist_cur, mhisthead, entries)) == NULL) {
641 ministate.hist_cur = TAILQ_LAST(&ministate.history->head, mhisthead);
642 ministate.hist_off = ministate.history->len - 1;
643 if (ministate.hist_cur == NULL)
644 message("No prev item");
646 ministate.hist_off--;
649 if (ministate.hist_cur != NULL)
650 buffer->current_line->line = ministate.hist_cur->h;
654 cmd_mini_next_history_element(struct buffer *buffer)
656 if (ministate.history == NULL) {
657 message("No history");
661 if (ministate.hist_cur == NULL ||
662 (ministate.hist_cur = TAILQ_NEXT(ministate.hist_cur, entries)) == NULL) {
663 ministate.hist_cur = TAILQ_FIRST(&ministate.history->head);
664 ministate.hist_off = 0;
665 if (ministate.hist_cur == NULL)
666 message("No next item");
668 ministate.hist_off++;
671 if (ministate.hist_cur != NULL)
672 buffer->current_line->line = ministate.hist_cur->h;