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.
18 * Ncurses UI for telescope.
23 * ncurses allows you to scroll a window, but when a line goes out of
24 * the visible area it's forgotten. We keep a list of formatted lines
25 * (``visual lines'') that we know fits in the window, and draw them.
27 * This means that on every resize we have to clear our list of lines
28 * and re-render everything. A clever approach would be to do this
29 * ``on-demand'', but it's still missing.
44 #include "minibuffer.h"
45 #include "telescope.h"
49 static struct event stdioev, winchev;
51 static void restore_curs_x(struct buffer *);
53 static int readkey(void);
54 static void dispatch_stdio(int, short, void*);
55 static void handle_clear_echoarea(int, short, void*);
56 static void handle_resize(int, short, void*);
57 static void handle_resize_nodelay(int, short, void*);
58 static void rearrange_windows(void);
59 static int wrap_page(struct buffer*, int);
60 static void line_prefix_and_text(struct vline *, char *, size_t, const char **, const char **);
61 static void print_vline(int, int, WINDOW*, struct vline*);
62 static void redraw_tabline(void);
63 static void redraw_window(WINDOW*, int, int, int, struct buffer*);
64 static void redraw_help(void);
65 static void redraw_body(struct tab*);
66 static void redraw_modeline(struct tab*);
67 static void redraw_minibuffer(void);
68 static void do_redraw_echoarea(void);
69 static void do_redraw_minibuffer(void);
70 static void do_redraw_minibuffer_compl(void);
71 static void place_cursor(int);
72 static void redraw_tab(struct tab*);
73 static void emit_help_item(char*, void*);
74 static void rec_compute_help(struct kmap*, char*, size_t);
75 static void recompute_help(void);
76 static void update_loading_anim(int, short, void*);
77 static void stop_loading_anim(struct tab*);
80 * Used to know when we're finished loading.
84 static int should_rearrange_windows;
88 struct thiskey thiskey;
89 struct tab *current_tab;
91 static struct event resizeev;
92 static struct timeval resize_timer = { 0, 250000 };
94 static WINDOW *tabline, *body, *modeline, *echoarea, *minibuffer;
96 int body_lines, body_cols;
99 static struct buffer helpwin;
100 static int help_lines, help_cols;
102 static int side_window;
104 static struct event clechoev;
105 static struct timeval clechoev_timer = { 5, 0 };
106 static struct timeval loadingev_timer = { 0, 250000 };
108 static uint32_t tab_counter;
110 static char keybuf[64];
112 struct kmap global_map,
120 update_x_offset(void)
122 if (olivetti_mode && fill_column < body_cols)
123 x_offset = (body_cols - fill_column)/2;
129 save_excursion(struct excursion *place, struct buffer *buffer)
131 place->curs_x = buffer->curs_x;
132 place->curs_y = buffer->curs_y;
133 place->line_off = buffer->line_off;
134 place->top_line = buffer->top_line;
135 place->current_line = buffer->current_line;
136 place->cpoff = buffer->cpoff;
140 restore_excursion(struct excursion *place, struct buffer *buffer)
142 buffer->curs_x = place->curs_x;
143 buffer->curs_y = place->curs_y;
144 buffer->line_off = place->line_off;
145 buffer->top_line = place->top_line;
146 buffer->current_line = place->current_line;
147 buffer->cpoff = place->cpoff;
151 restore_curs_x(struct buffer *buffer)
154 const char *prfx, *text;
156 vl = buffer->current_line;
157 if (vl == NULL || vl->line == NULL)
158 buffer->curs_x = buffer->cpoff = 0;
159 else if (vl->parent->data != NULL) {
160 text = vl->parent->data;
161 buffer->curs_x = utf8_snwidth(text + 1, buffer->cpoff) + 1;
163 buffer->curs_x = utf8_snwidth(vl->line, buffer->cpoff);
165 buffer->curs_x += x_offset;
170 if (vl->parent->data != NULL)
171 buffer->curs_x += utf8_swidth_between(vl->parent->line, vl->parent->data);
173 prfx = line_prefixes[vl->parent->type].prfx1;
174 buffer->curs_x += utf8_swidth(prfx);
179 global_key_unbound(void)
181 message("%s is undefined", keybuf);
188 return &ministate.buffer;
189 return ¤t_tab->buffer;
197 if ((thiskey.key = wgetch(body)) == ERR)
200 thiskey.meta = thiskey.key == 27;
202 thiskey.key = wgetch(body);
203 if (thiskey.key == ERR || thiskey.key == 27) {
210 if ((unsigned int)thiskey.key < UINT8_MAX) {
212 if (!utf8_decode(&state, &thiskey.cp, (uint8_t)thiskey.key))
214 if ((thiskey.key = wgetch(body)) == ERR) {
215 message("Error decoding user input");
225 dispatch_stdio(int fd, short ev, void *d)
231 /* TODO: schedule a redraw? */
238 if (keybuf[0] != '\0')
239 strlcat(keybuf, " ", sizeof(keybuf));
241 strlcat(keybuf, "M-", sizeof(keybuf));
242 if (thiskey.cp != 0) {
243 utf8_encode(thiskey.cp, tmp);
244 strlcat(keybuf, tmp, sizeof(keybuf));
245 } else if ((keyname = unkbd(thiskey.key)) != NULL) {
246 strlcat(keybuf, keyname, sizeof(keybuf));
248 tmp[0] = thiskey.key;
249 strlcat(keybuf, tmp, sizeof(keybuf));
252 TAILQ_FOREACH(k, ¤t_map->m, keymaps) {
253 if (k->meta == thiskey.meta &&
254 k->key == thiskey.key) {
256 current_map = &k->map;
258 current_map = base_map;
259 strlcpy(keybuf, "", sizeof(keybuf));
260 k->fn(current_buffer());
266 if (current_map->unhandled_input != NULL)
267 current_map->unhandled_input();
269 global_key_unbound();
271 strlcpy(keybuf, "", sizeof(keybuf));
272 current_map = base_map;
278 if (should_rearrange_windows)
280 redraw_tab(current_tab);
284 handle_clear_echoarea(int fd, short ev, void *d)
286 free(ministate.curmesg);
287 ministate.curmesg = NULL;
294 handle_resize(int sig, short ev, void *d)
296 if (event_pending(&resizeev, EV_TIMEOUT, NULL)) {
297 event_del(&resizeev);
299 evtimer_set(&resizeev, handle_resize_nodelay, NULL);
300 evtimer_add(&resizeev, &resize_timer);
304 handle_resize_nodelay(int s, short ev, void *d)
314 rearrange_windows(void)
318 should_rearrange_windows = 0;
322 if ((too_small = lines < 15)) {
324 printw("Window too small.");
329 /* move and resize the windows, in reverse order! */
331 if (in_minibuffer == MB_COMPREAD) {
332 mvwin(minibuffer, lines-10, 0);
333 wresize(minibuffer, 10, COLS);
336 wrap_page(&ministate.compl.buffer, COLS);
339 mvwin(echoarea, --lines, 0);
340 wresize(echoarea, 1, COLS);
342 mvwin(modeline, --lines, 0);
343 wresize(modeline, 1, COLS);
345 body_lines = --lines;
349 help_cols = 0.3 * COLS;
352 wresize(help, help_lines, help_cols);
354 wrap_page(&helpwin, help_cols);
356 body_cols = COLS - help_cols - 1;
357 mvwin(body, 1, help_cols);
362 wresize(body, body_lines, body_cols);
364 wresize(tabline, 1, COLS);
366 wrap_page(¤t_tab->buffer, body_cols);
367 redraw_tab(current_tab);
371 wrap_page(struct buffer *buffer, int width)
374 const struct line *top_orig, *orig;
379 top_orig = buffer->top_line == NULL ? NULL : buffer->top_line->parent;
380 orig = buffer->current_line == NULL ? NULL : buffer->current_line->parent;
382 buffer->top_line = NULL;
383 buffer->current_line = NULL;
385 buffer->force_redraw = 1;
387 buffer->line_off = 0;
391 TAILQ_FOREACH(l, &buffer->page.head, lines) {
392 prfx = line_prefixes[l->type].prfx1;
403 wrap_text(buffer, prfx, l, MIN(fill_column, width));
405 case LINE_PRE_CONTENT:
407 pre_width = MIN(fill_column, width);
410 hardwrap_text(buffer, l, pre_width);
413 case LINE_COMPL_CURRENT:
414 wrap_one(buffer, prfx, l, width);
418 if (top_orig == l && buffer->top_line == NULL) {
419 buffer->line_off = buffer->line_max-1;
420 buffer->top_line = TAILQ_LAST(&buffer->head, vhead);
423 vl = TAILQ_PREV(buffer->top_line, vhead, vlines);
424 if (vl == NULL || vl->parent != orig)
426 buffer->top_line = vl;
431 if (orig == l && buffer->current_line == NULL) {
432 buffer->current_line = TAILQ_LAST(&buffer->head, vhead);
435 vl = TAILQ_PREV(buffer->current_line, vhead, vlines);
436 if (vl == NULL || vl->parent != orig)
438 buffer->current_line = vl;
443 if (buffer->current_line == NULL)
444 buffer->current_line = TAILQ_FIRST(&buffer->head);
446 if (buffer->top_line == NULL)
447 buffer->top_line = buffer->current_line;
453 line_prefix_and_text(struct vline *vl, char *buf, size_t len,
454 const char **prfx_ret, const char **text_ret)
456 int type, i, cont, width;
459 if ((*text_ret = vl->line) == NULL)
462 cont = vl->flags & L_CONTINUATION;
463 type = vl->parent->type;
465 *prfx_ret = line_prefixes[type].prfx1;
467 *prfx_ret = line_prefixes[type].prfx2;
469 space = vl->parent->data;
470 if (!emojify_link || type != LINE_LINK || space == NULL)
475 width = utf8_swidth_between(vl->parent->line, space);
476 for (i = 0; i < width + 1; ++i)
477 strlcat(buf, " ", len);
479 strlcpy(buf, *text_ret, len);
480 if ((t = strchr(buf, ' ')) != NULL)
482 strlcat(buf, " ", len);
485 *text_ret += (space - vl->parent->line) + 1;
492 print_vline_descr(int width, WINDOW *window, struct vline *vl)
496 if (vl->parent->type != LINE_COMPL &&
497 vl->parent->type != LINE_COMPL_CURRENT)
500 if (vl->parent->alt == NULL)
508 wprintw(window, " ");
509 for (; goal > x; ++x)
510 wprintw(window, " ");
512 wprintw(window, "%s", vl->parent->alt);
516 * Core part of the rendering. It prints a vline starting from the
517 * current cursor position. Printing a vline consists of skipping
518 * `off' columns (for olivetti-mode), print the correct prefix (which
519 * may be the emoji in case of emojified links-lines), printing the
520 * text itself, filling until width - off and filling off columns
524 print_vline(int off, int width, WINDOW *window, struct vline *vl)
527 * Believe me or not, I've seen emoji ten code points long!
528 * That means, to stay large, 4*10 bytes + NUL.
530 char emojibuf[41] = {0};
531 const char *text, *prfx;
535 f = &line_faces[vl->parent->type];
537 /* unused, set by getyx */
540 line_prefix_and_text(vl, emojibuf, sizeof(emojibuf), &prfx, &text);
542 wattr_on(window, body_face.left, NULL);
543 for (i = 0; i < off; i++)
545 wattr_off(window, body_face.left, NULL);
547 wattr_on(window, f->prefix, NULL);
548 wprintw(window, "%s", prfx);
549 wattr_off(window, f->prefix, NULL);
551 wattr_on(window, f->text, NULL);
552 wprintw(window, "%s", text);
553 print_vline_descr(width, window, vl);
554 wattr_off(window, f->text, NULL);
560 wattr_on(window, f->trail, NULL);
561 for (i = 0; i < left - off; ++i)
563 wattr_off(window, f->trail, NULL);
565 wattr_on(window, body_face.right, NULL);
566 for (i = 0; i < off; i++)
568 wattr_off(window, body_face.right, NULL);
576 size_t toskip, ots, tabwidth, space, x;
577 int current, y, truncated, pair;
583 /* unused, but setted by a getyx */
586 tabwidth = sizeof(buf)+1;
590 TAILQ_FOREACH(tab, &tabshead, tabs) {
592 if (tab == current_tab)
596 if (toskip * tabwidth < space)
601 while (toskip != 0 &&
602 (ots - toskip+1) * tabwidth < space)
607 wattr_on(tabline, tab_face.background, NULL);
608 wprintw(tabline, toskip == 0 ? " " : "<");
609 wattr_off(tabline, tab_face.background, NULL);
612 TAILQ_FOREACH(tab, &tabshead, tabs) {
620 getyx(tabline, y, x);
621 if (x + sizeof(buf)+2 >= (size_t)COLS)
624 current = tab == current_tab;
626 if (*(title = tab->buffer.page.title) == '\0')
627 title = tab->hist_cur->h;
629 if (tab->flags & TAB_URGENT)
630 strlcpy(buf, "!", sizeof(buf));
632 strlcpy(buf, " ", sizeof(buf));
634 if (strlcat(buf, title, sizeof(buf)) >= sizeof(buf)) {
635 /* truncation happens */
636 strlcpy(&buf[sizeof(buf)-4], "...", 4);
638 /* pad with spaces */
639 while (strlcat(buf, " ", sizeof(buf)) < sizeof(buf))
643 pair = current ? tab_face.current : tab_face.tab;
644 wattr_on(tabline, pair, NULL);
645 wprintw(tabline, "%s", buf);
646 wattr_off(tabline, pair, NULL);
648 wattr_on(tabline, tab_face.background, NULL);
649 if (TAILQ_NEXT(tab, tabs) != NULL)
650 wprintw(tabline, "│");
651 wattr_off(tabline, tab_face.background, NULL);
654 wattr_on(tabline, tab_face.background, NULL);
655 for (; x < (size_t)COLS; ++x)
656 waddch(tabline, ' ');
658 mvwprintw(tabline, 0, COLS-1, ">");
659 wattr_off(tabline, tab_face.background, NULL);
663 * Compute the first visible line around vl. Try to search forward
664 * until the end of the buffer; if a visible line is not found, search
665 * backward. Return NULL if no viable line was found.
668 adjust_line(struct vline *vl, struct buffer *buffer)
675 if (!(vl->parent->flags & L_HIDDEN))
680 t != NULL && t->parent->flags & L_HIDDEN;
681 t = TAILQ_NEXT(t, vlines))
687 /* search backward */
689 t != NULL && t->parent->flags & L_HIDDEN;
690 t = TAILQ_PREV(t, vhead, vlines))
697 redraw_window(WINDOW *win, int off, int height, int width, struct buffer *buffer)
702 restore_curs_x(buffer);
705 * TODO: ignoring buffer->force_update and always
706 * re-rendering. In theory we can recompute the y position
707 * without a re-render, and optimize here. It's not the only
708 * optimisation possible here, wscrl wolud also be an
716 if (TAILQ_EMPTY(&buffer->head))
719 if (buffer->top_line == NULL)
720 buffer->top_line = TAILQ_FIRST(&buffer->head);
722 buffer->top_line = adjust_line(buffer->top_line, buffer);
723 if (buffer->top_line == NULL)
726 buffer->current_line = adjust_line(buffer->current_line, buffer);
730 for (vl = buffer->top_line; vl != NULL; vl = TAILQ_NEXT(vl, vlines)) {
731 if (vl->parent->flags & L_HIDDEN)
735 print_vline(off, width, win, vl);
737 if (vl == buffer->current_line)
749 for (; vl != NULL; vl = TAILQ_NEXT(vl, vlines)) {
750 if (vl == buffer->current_line)
752 if (vl->parent->flags & L_HIDDEN)
755 buffer->top_line = TAILQ_NEXT(buffer->top_line, vlines);
762 buffer->last_line_off = buffer->line_off;
763 buffer->force_redraw = 0;
765 wmove(win, buffer->curs_y, buffer->curs_x);
771 redraw_window(help, 0, help_lines, help_cols, &helpwin);
775 redraw_body(struct tab *tab)
777 static struct tab *last_tab;
780 tab->buffer.force_redraw =1;
783 redraw_window(body, x_offset, body_lines, body_cols, &tab->buffer);
787 trust_status_char(enum trust_state ts)
790 case TS_UNKNOWN: return 'u';
791 case TS_UNTRUSTED: return '!';
792 case TS_TEMP_TRUSTED: return '!';
793 case TS_TRUSTED: return 'v';
794 case TS_VERIFIED: return 'V';
800 redraw_modeline(struct tab *tab)
803 int x, y, max_x, max_y;
804 const char *mode = tab->buffer.page.name;
805 const char *spin = "-\\|/";
808 wattr_on(modeline, modeline_face.background, NULL);
809 wmove(modeline, 0, 0);
811 wprintw(modeline, "-%c%c %s ",
812 spin[tab->loading_anim_step],
813 trust_status_char(tab->trust),
814 mode == NULL ? "(none)" : mode);
816 pct = (tab->buffer.line_off + tab->buffer.curs_y) * 100.0
817 / tab->buffer.line_max;
819 if (tab->buffer.line_max <= (size_t)body_lines)
820 wprintw(modeline, "All ");
821 else if (tab->buffer.line_off == 0)
822 wprintw(modeline, "Top ");
823 else if (tab->buffer.line_off + body_lines >= tab->buffer.line_max)
824 wprintw(modeline, "Bottom ");
826 wprintw(modeline, "%.0f%% ", pct);
828 wprintw(modeline, "%d/%d %s ",
829 tab->buffer.line_off + tab->buffer.curs_y,
830 tab->buffer.line_max,
833 getyx(modeline, y, x);
834 getmaxyx(modeline, max_y, max_x);
839 for (; x < max_x; ++x)
840 waddstr(modeline, "-");
842 wattr_off(modeline, modeline_face.background, NULL);
846 redraw_minibuffer(void)
848 wattr_on(echoarea, minibuffer_face.background, NULL);
852 do_redraw_minibuffer();
854 do_redraw_echoarea();
856 if (in_minibuffer == MB_COMPREAD)
857 do_redraw_minibuffer_compl();
859 wattr_off(echoarea, minibuffer_face.background, NULL);
863 do_redraw_echoarea(void)
867 if (ministate.curmesg != NULL)
868 wprintw(echoarea, "%s", ministate.curmesg);
869 else if (*keybuf != '\0')
870 waddstr(echoarea, keybuf);
872 /* If nothing else, show the URL at point */
873 vl = current_tab->buffer.current_line;
874 if (vl != NULL && vl->parent->type == LINE_LINK)
875 waddstr(echoarea, vl->parent->alt);
880 do_redraw_minibuffer(void)
882 size_t off_y, off_x = 0;
883 const char *start, *c;
885 /* unused, set by getyx */
888 wmove(echoarea, 0, 0);
890 if (in_minibuffer == MB_COMPREAD)
891 wprintw(echoarea, "(%2d) ",
892 ministate.compl.buffer.line_max);
894 wprintw(echoarea, "%s", ministate.prompt);
895 if (ministate.hist_cur != NULL)
896 wprintw(echoarea, "(%zu/%zu) ",
897 ministate.hist_off + 1,
898 ministate.history->len);
900 getyx(echoarea, off_y, off_x);
902 start = ministate.hist_cur != NULL
903 ? ministate.hist_cur->h
905 c = utf8_nth(ministate.buffer.current_line->line,
906 ministate.buffer.cpoff);
907 while (utf8_swidth_between(start, c) > (size_t)COLS/2) {
908 start = utf8_next_cp(start);
911 waddstr(echoarea, start);
913 if (ministate.curmesg != NULL)
914 wprintw(echoarea, " [%s]", ministate.curmesg);
916 wmove(echoarea, 0, off_x + utf8_swidth_between(start, c));
920 do_redraw_minibuffer_compl(void)
922 redraw_window(minibuffer, 0, 10, body_cols,
923 &ministate.compl.buffer);
927 * Place the cursor in the right ncurses window. If soft is 1, use
928 * wnoutrefresh (which shouldn't cause any I/O); otherwise use
932 place_cursor(int soft)
934 int (*touch)(WINDOW *);
937 touch = wnoutrefresh;
951 redraw_tab(struct tab *tab)
963 redraw_modeline(tab);
966 wnoutrefresh(tabline);
967 wnoutrefresh(modeline);
969 if (in_minibuffer == MB_COMPREAD)
970 wnoutrefresh(minibuffer);
977 dprintf(1, "\033]0;%s - Telescope\a",
978 current_tab->buffer.page.title);
982 emit_help_item(char *prfx, void *fn)
987 for (cmd = cmds; cmd->cmd != NULL; ++cmd) {
993 if ((l = calloc(1, sizeof(*l))) == NULL)
999 asprintf(&l->line, "%s %s", prfx, cmd->cmd);
1001 if (TAILQ_EMPTY(&helpwin.page.head))
1002 TAILQ_INSERT_HEAD(&helpwin.page.head, l, lines);
1004 TAILQ_INSERT_TAIL(&helpwin.page.head, l, lines);
1008 rec_compute_help(struct kmap *keymap, char *prfx, size_t len)
1014 TAILQ_FOREACH(k, &keymap->m, keymaps) {
1015 strlcpy(p, prfx, sizeof(p));
1017 strlcat(p, " ", sizeof(p));
1019 strlcat(p, "M-", sizeof(p));
1020 if ((kn = unkbd(k->key)) != NULL)
1021 strlcat(p, kn, sizeof(p));
1023 strlcat(p, keyname(k->key), sizeof(p));
1026 rec_compute_help(&k->map, p, sizeof(p));
1028 emit_help_item(p, k->fn);
1033 recompute_help(void)
1037 empty_vlist(&helpwin);
1038 empty_linelist(&helpwin);
1039 rec_compute_help(current_map, p, sizeof(p));
1040 wrap_page(&helpwin, help_cols);
1044 vmessage(const char *fmt, va_list ap)
1046 if (evtimer_pending(&clechoev, NULL))
1047 evtimer_del(&clechoev);
1049 free(ministate.curmesg);
1050 ministate.curmesg = NULL;
1053 evtimer_set(&clechoev, handle_clear_echoarea, NULL);
1054 evtimer_add(&clechoev, &clechoev_timer);
1056 /* TODO: what to do if the allocation fails here? */
1057 if (vasprintf(&ministate.curmesg, fmt, ap) == -1)
1058 ministate.curmesg = NULL;
1061 redraw_minibuffer();
1066 message(const char *fmt, ...)
1076 start_loading_anim(struct tab *tab)
1078 if (tab->loading_anim)
1080 tab->loading_anim = 1;
1081 evtimer_set(&tab->loadingev, update_loading_anim, tab);
1082 evtimer_add(&tab->loadingev, &loadingev_timer);
1086 update_loading_anim(int fd, short ev, void *d)
1088 struct tab *tab = d;
1090 tab->loading_anim_step = (tab->loading_anim_step+1)%4;
1092 if (tab == current_tab) {
1093 redraw_modeline(tab);
1100 evtimer_add(&tab->loadingev, &loadingev_timer);
1104 stop_loading_anim(struct tab *tab)
1106 if (!tab->loading_anim)
1108 evtimer_del(&tab->loadingev);
1109 tab->loading_anim = 0;
1110 tab->loading_anim_step = 0;
1112 if (tab != current_tab)
1115 redraw_modeline(tab);
1124 load_url_in_tab(struct tab *tab, const char *url)
1131 message("Loading %s...", url);
1132 start_loading_anim(tab);
1139 switch_to_tab(struct tab *tab)
1142 tab->flags &= ~TAB_URGENT;
1144 if (operating && tab->flags & TAB_LAZY)
1145 load_url_in_tab(tab, tab->hist_cur->h);
1151 return tab_counter++;
1155 new_tab(const char *url)
1159 if ((tab = calloc(1, sizeof(*tab))) == NULL) {
1165 TAILQ_INIT(&tab->hist.head);
1167 TAILQ_INIT(&tab->buffer.head);
1169 tab->id = tab_new_id();
1171 tab->flags |= TAB_LAZY;
1174 if (TAILQ_EMPTY(&tabshead))
1175 TAILQ_INSERT_HEAD(&tabshead, tab, tabs);
1177 TAILQ_INSERT_TAIL(&tabshead, tab, tabs);
1179 load_url_in_tab(tab, url);
1184 ui_print_colors(void)
1186 int colors = 0, pairs = 0, can_change = 0;
1187 int columns = 16, lines, color, i, j;
1192 use_default_colors();
1195 pairs = COLOR_PAIRS;
1196 can_change = can_change_color();
1200 printf("Term info:\n");
1201 printf("TERM=%s COLORS=%d COLOR_PAIRS=%d can_change_colors=%d\n",
1202 getenv("TERM"), colors, pairs, can_change);
1206 printf("No color support\n");
1210 printf("Available colors:\n\n");
1211 lines = (colors - 1) / columns + 1;
1213 for (i = 0; i < lines; ++i) {
1214 for (j = 0; j < columns; ++j, ++color) {
1215 printf("\033[0;38;5;%dm %03d", color, color);
1228 setlocale(LC_ALL, "");
1230 TAILQ_INIT(&eecmd_history.head);
1231 TAILQ_INIT(&ir_history.head);
1232 TAILQ_INIT(&lu_history.head);
1234 ministate.line.type = LINE_TEXT;
1235 ministate.vline.parent = &ministate.line;
1236 ministate.buffer.current_line = &ministate.vline;
1238 /* initialize help window */
1239 TAILQ_INIT(&helpwin.head);
1241 base_map = &global_map;
1242 current_map = &global_map;
1246 if (enable_colors) {
1249 use_default_colors();
1254 config_apply_style();
1259 intrflush(stdscr, FALSE);
1261 if ((tabline = newwin(1, COLS, 0, 0)) == NULL)
1263 if ((body = newwin(LINES - 3, COLS, 1, 0)) == NULL)
1265 if ((modeline = newwin(1, COLS, LINES-2, 0)) == NULL)
1267 if ((echoarea = newwin(1, COLS, LINES-1, 0)) == NULL)
1269 if ((minibuffer = newwin(1, COLS, LINES-1, 0)) == NULL)
1271 if ((help = newwin(1, 1, 1, 0)) == NULL)
1274 body_lines = LINES-3;
1277 wbkgd(body, body_face.body);
1278 wbkgd(echoarea, minibuffer_face.background);
1283 scrollok(body, FALSE);
1285 /* non-blocking input */
1288 mvwprintw(body, 0, 0, "");
1291 * Dummy so libevent2 won't complain that no event_base is set
1292 * when checking event_pending for the first time
1294 evtimer_set(&clechoev, handle_clear_echoarea, NULL);
1295 evtimer_add(&clechoev, &clechoev_timer);
1296 evtimer_set(&resizeev, handle_resize, NULL);
1297 evtimer_add(&resizeev, &resize_timer);
1299 event_set(&stdioev, 0, EV_READ | EV_PERSIST, dispatch_stdio, NULL);
1300 event_add(&stdioev, NULL);
1302 signal_set(&winchev, SIGWINCH, handle_resize, NULL);
1303 signal_add(&winchev, NULL);
1312 switch_to_tab(current_tab);
1313 redraw_tab(current_tab);
1319 ui_on_tab_loaded(struct tab *tab)
1321 stop_loading_anim(tab);
1322 message("Loaded %s", tab->hist_cur->h);
1330 ui_on_tab_refresh(struct tab *tab)
1332 wrap_page(&tab->buffer, body_cols);
1333 if (tab == current_tab)
1336 tab->flags |= TAB_URGENT;
1346 ui_toggle_side_window(void)
1348 side_window = !side_window;
1353 * ugly hack, but otherwise the window doesn't get updated
1354 * until I call rearrange_windows a second time (e.g. via
1355 * C-l). I will be happy to know why something like this is
1358 rearrange_windows();
1359 rearrange_windows();
1363 ui_schedule_redraw(void)
1365 should_rearrange_windows = 1;
1369 ui_require_input(struct tab *tab, int hide)
1371 /* TODO: hard-switching to another tab is ugly */
1374 enter_minibuffer(ir_self_insert, ir_select, exit_minibuffer,
1375 &ir_history, NULL, NULL);
1376 strlcpy(ministate.prompt, "Input required: ",
1377 sizeof(ministate.prompt));
1382 ui_yornp(const char *prompt, void (*fn)(int, struct tab *),
1385 yornp(prompt, fn, data);
1386 redraw_tab(current_tab);
1390 ui_read(const char *prompt, void (*fn)(const char*, struct tab *),
1393 completing_read(prompt, fn, data);
1394 redraw_tab(current_tab);
1402 kill(getpid(), SIGSTOP);
1406 rearrange_windows();