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.
26 * This way is easy to scroll: just call wscrl and then render the
29 * This means that on every resize we have to clear our list of lines
30 * and re-render everything. A clever approach would be to do this
31 * ``on-demand'', but it's still missing.
35 #include "telescope.h"
49 static struct event stdioev, winchev;
51 static void load_default_keys(void);
53 static void global_key_unbound(void);
54 static void minibuffer_hist_save_entry(void);
55 static void minibuffer_self_insert(void);
56 static void yornp_self_insert(void);
57 static void yornp_abort(void);
58 static void read_self_insert(void);
59 static void read_abort(void);
60 static void read_select(void);
62 static struct vline *nth_line(struct buffer*, size_t);
63 static struct buffer *current_buffer(void);
64 static int readkey(void);
65 static void dispatch_stdio(int, short, void*);
66 static void handle_clear_minibuf(int, short, void*);
67 static void handle_resize(int, short, void*);
68 static void handle_resize_nodelay(int, short, void*);
69 static int wrap_page(struct buffer*, int);
70 static void print_vline(int, int, WINDOW*, struct vline*);
71 static void redraw_tabline(void);
72 static void redraw_window(WINDOW*, int, int, struct buffer*);
73 static void redraw_help(void);
74 static void redraw_body(struct tab*);
75 static void redraw_modeline(struct tab*);
76 static void redraw_minibuffer(void);
77 static void redraw_tab(struct tab*);
78 static void emit_help_item(char*, void*);
79 static void rec_compute_help(struct kmap*, char*, size_t);
80 static void recompute_help(void);
81 static void update_loading_anim(int, short, void*);
82 static void stop_loading_anim(struct tab*);
83 static void session_new_tab_cb(const char*);
84 static void usage(void);
88 struct thiskey thiskey;
90 static struct event resizeev;
91 static struct timeval resize_timer = { 0, 250000 };
93 static WINDOW *tabline, *body, *modeline, *minibuf;
95 int body_lines, body_cols;
98 static struct buffer helpwin;
99 static int help_lines, help_cols;
101 static int side_window;
103 static struct event clminibufev;
104 static struct timeval clminibufev_timer = { 5, 0 };
105 static struct timeval loadingev_timer = { 0, 250000 };
107 static uint32_t tab_counter;
109 static char keybuf[64];
111 static void (*yornp_cb)(int, unsigned int);
112 static unsigned int yornp_data;
114 static void (*read_cb)(const char*, unsigned int);
115 static unsigned int read_data;
117 struct kmap global_map,
122 struct histhead eecmd_history,
129 struct ministate ministate;
132 update_x_offset(void)
134 if (olivetti_mode && fill_column < body_cols)
135 x_offset = (body_cols - fill_column)/2;
141 global_set_key(const char *key, void (*fn)(struct buffer*))
143 if (!kmap_define_key(&global_map, key, fn))
148 minibuffer_set_key(const char *key, void (*fn)(struct buffer*))
150 if (!kmap_define_key(&minibuffer_map, key, fn))
155 load_default_keys(void)
157 /* === global map === */
160 global_set_key("C-p", cmd_previous_line);
161 global_set_key("C-n", cmd_next_line);
162 global_set_key("C-f", cmd_forward_char);
163 global_set_key("C-b", cmd_backward_char);
164 global_set_key("M-{", cmd_backward_paragraph);
165 global_set_key("M-}", cmd_forward_paragraph);
166 global_set_key("C-a", cmd_move_beginning_of_line);
167 global_set_key("C-e", cmd_move_end_of_line);
169 global_set_key("M-v", cmd_scroll_up);
170 global_set_key("C-v", cmd_scroll_down);
171 global_set_key("M-space", cmd_scroll_up);
172 global_set_key("space", cmd_scroll_down);
174 global_set_key("M-<", cmd_beginning_of_buffer);
175 global_set_key("M->", cmd_end_of_buffer);
177 global_set_key("C-x C-c", cmd_kill_telescope);
179 global_set_key("C-g", cmd_clear_minibuf);
181 global_set_key("M-x", cmd_execute_extended_command);
182 global_set_key("C-x C-f", cmd_load_url);
183 global_set_key("C-x M-f", cmd_load_current_url);
185 global_set_key("C-x t 0", cmd_tab_close);
186 global_set_key("C-x t 1", cmd_tab_close_other);
187 global_set_key("C-x t 2", cmd_tab_new);
188 global_set_key("C-x t o", cmd_tab_next);
189 global_set_key("C-x t O", cmd_tab_previous);
190 global_set_key("C-x t m", cmd_tab_move);
191 global_set_key("C-x t M", cmd_tab_move_to);
193 global_set_key("C-M-b", cmd_previous_page);
194 global_set_key("C-M-f", cmd_next_page);
196 global_set_key("<f7> a", cmd_bookmark_page);
197 global_set_key("<f7> <f7>", cmd_list_bookmarks);
200 global_set_key("k", cmd_previous_line);
201 global_set_key("j", cmd_next_line);
202 global_set_key("l", cmd_forward_char);
203 global_set_key("h", cmd_backward_char);
204 global_set_key("{", cmd_backward_paragraph);
205 global_set_key("}", cmd_forward_paragraph);
206 global_set_key("^", cmd_move_beginning_of_line);
207 global_set_key("$", cmd_move_end_of_line);
209 global_set_key("K", cmd_scroll_line_up);
210 global_set_key("J", cmd_scroll_line_down);
212 global_set_key("g g", cmd_beginning_of_buffer);
213 global_set_key("G", cmd_end_of_buffer);
215 global_set_key("g D", cmd_tab_close);
216 global_set_key("g N", cmd_tab_new);
217 global_set_key("g t", cmd_tab_next);
218 global_set_key("g T", cmd_tab_previous);
219 global_set_key("g M-t", cmd_tab_move);
220 global_set_key("g M-T", cmd_tab_move_to);
222 global_set_key("H", cmd_previous_page);
223 global_set_key("L", cmd_next_page);
226 global_set_key("q", cmd_kill_telescope);
228 global_set_key("esc", cmd_clear_minibuf);
230 global_set_key(":", cmd_execute_extended_command);
233 global_set_key("<up>", cmd_previous_line);
234 global_set_key("<down>", cmd_next_line);
235 global_set_key("<right>", cmd_forward_char);
236 global_set_key("<left>", cmd_backward_char);
237 global_set_key("<prior>", cmd_scroll_up);
238 global_set_key("<next>", cmd_scroll_down);
240 global_set_key("M-<left>", cmd_previous_page);
241 global_set_key("M-<right>", cmd_next_page);
243 /* "ncurses standard" */
244 global_set_key("C-l", cmd_redraw);
247 global_set_key("<f1>", cmd_toggle_help);
248 global_set_key("C-m", cmd_push_button);
249 global_set_key("M-enter", cmd_push_button_new_tab);
250 global_set_key("M-tab", cmd_previous_button);
251 global_set_key("backtab", cmd_previous_button);
252 global_set_key("tab", cmd_next_button);
254 /* === minibuffer map === */
255 minibuffer_set_key("ret", cmd_mini_complete_and_exit);
256 minibuffer_set_key("C-g", cmd_mini_abort);
257 minibuffer_set_key("esc", cmd_mini_abort);
258 minibuffer_set_key("C-d", cmd_mini_delete_char);
259 minibuffer_set_key("del", cmd_mini_delete_backward_char);
260 minibuffer_set_key("backspace", cmd_mini_delete_backward_char);
261 minibuffer_set_key("C-h", cmd_mini_delete_backward_char);
263 minibuffer_set_key("C-b", cmd_backward_char);
264 minibuffer_set_key("C-f", cmd_forward_char);
265 minibuffer_set_key("<left>", cmd_backward_char);
266 minibuffer_set_key("<right>", cmd_forward_char);
267 minibuffer_set_key("C-e", cmd_move_end_of_line);
268 minibuffer_set_key("C-a", cmd_move_beginning_of_line);
269 minibuffer_set_key("<end>", cmd_move_end_of_line);
270 minibuffer_set_key("<home>", cmd_move_beginning_of_line);
271 minibuffer_set_key("C-k", cmd_mini_kill_line);
273 minibuffer_set_key("M-p", cmd_mini_previous_history_element);
274 minibuffer_set_key("M-n", cmd_mini_next_history_element);
275 minibuffer_set_key("<up>", cmd_mini_previous_history_element);
276 minibuffer_set_key("<down>", cmd_mini_next_history_element);
280 save_excursion(struct excursion *place, struct buffer *buffer)
282 place->curs_x = buffer->curs_x;
283 place->curs_y = buffer->curs_y;
284 place->line_off = buffer->line_off;
285 place->current_line = buffer->current_line;
286 place->cpoff = buffer->cpoff;
290 restore_excursion(struct excursion *place, struct buffer *buffer)
292 buffer->curs_x = place->curs_x;
293 buffer->curs_y = place->curs_y;
294 buffer->line_off = place->line_off;
295 buffer->current_line = place->current_line;
296 buffer->cpoff = place->cpoff;
300 restore_cursor(struct buffer *buffer)
305 vl = buffer->current_line;
306 if (vl == NULL || vl->line == NULL)
307 buffer->curs_x = buffer->cpoff = 0;
309 buffer->curs_x = utf8_snwidth(vl->line, buffer->cpoff);
311 buffer->curs_x += x_offset;
314 prfx = line_prefixes[vl->parent->type].prfx1;
315 buffer->curs_x += utf8_swidth(prfx);
320 global_key_unbound(void)
322 message("%s is undefined", keybuf);
326 minibuffer_hist_save_entry(void)
330 if (ministate.history == NULL)
333 if ((hist = calloc(1, sizeof(*hist))) == NULL)
336 strlcpy(hist->h, ministate.buf, sizeof(hist->h));
338 if (TAILQ_EMPTY(&ministate.history->head))
339 TAILQ_INSERT_HEAD(&ministate.history->head, hist, entries);
341 TAILQ_INSERT_TAIL(&ministate.history->head, hist, entries);
342 ministate.history->len++;
346 * taint the minibuffer cache: if we're currently showing a history
347 * element, copy that to the current buf and reset the "history
351 minibuffer_taint_hist(void)
353 if (ministate.hist_cur == NULL)
356 strlcpy(ministate.buf, ministate.hist_cur->h, sizeof(ministate.buf));
357 ministate.hist_cur = NULL;
361 minibuffer_self_insert(void)
363 char *c, tmp[5] = {0};
366 minibuffer_taint_hist();
371 len = utf8_encode(thiskey.cp, tmp);
372 c = utf8_nth(ministate.buffer.current_line->line, ministate.buffer.cpoff);
373 if (c + len > ministate.buf + sizeof(ministate.buf) - 1)
376 memmove(c + len, c, strlen(c)+1);
378 ministate.buffer.cpoff++;
382 eecmd_self_insert(void)
384 if (thiskey.meta || unicode_isspace(thiskey.cp) ||
385 !unicode_isgraph(thiskey.cp)) {
386 global_key_unbound();
390 minibuffer_self_insert();
398 for (cmd = cmds; cmd->cmd != NULL; ++cmd) {
399 if (!strcmp(cmd->cmd, ministate.buf)) {
401 minibuffer_hist_save_entry();
402 cmd->fn(current_buffer());
413 minibuffer_self_insert();
419 char buf[1025] = {0};
426 minibuffer_hist_save_entry();
428 /* a bit ugly but... */
429 memcpy(&uri, &tab->uri, sizeof(tab->uri));
430 phos_uri_set_query(&uri, ministate.buf);
431 phos_serialize_uri(&uri, buf, sizeof(buf));
432 load_url_in_tab(tab, buf);
438 if (thiskey.meta || unicode_isspace(thiskey.key) ||
439 !unicode_isgraph(thiskey.key)) {
440 global_key_unbound();
444 minibuffer_self_insert();
451 minibuffer_hist_save_entry();
452 load_url_in_tab(current_tab(), ministate.buf);
459 if (*ministate.buf != '\0')
460 add_to_bookmarks(ministate.buf);
466 yornp_self_insert(void)
468 if (thiskey.key != 'y' && thiskey.key != 'n') {
469 message("Please answer y or n");
474 yornp_cb(thiskey.key == 'y', yornp_data);
481 yornp_cb(0, yornp_data);
485 read_self_insert(void)
487 if (thiskey.meta || !unicode_isgraph(thiskey.cp)) {
488 global_key_unbound();
492 minibuffer_self_insert();
499 read_cb(NULL, read_data);
506 minibuffer_hist_save_entry();
507 read_cb(ministate.buf, read_data);
510 static struct vline *
511 nth_line(struct buffer *buffer, size_t n)
517 TAILQ_FOREACH(vl, &buffer->head, vlines) {
532 TAILQ_FOREACH(t, &tabshead, tabs) {
533 if (t->flags & TAB_CURRENT)
545 return &ministate.buffer;
546 return ¤t_tab()->buffer;
554 if ((thiskey.key = wgetch(body)) == ERR)
557 thiskey.meta = thiskey.key == 27;
559 thiskey.key = wgetch(body);
560 if (thiskey.key == ERR || thiskey.key == 27) {
567 if ((unsigned int)thiskey.key < UINT8_MAX) {
569 if (!utf8_decode(&state, &thiskey.cp, (uint8_t)thiskey.key))
571 if ((thiskey.key = wgetch(body)) == ERR) {
572 message("Error decoding user input");
582 dispatch_stdio(int fd, short ev, void *d)
591 if (keybuf[0] != '\0')
592 strlcat(keybuf, " ", sizeof(keybuf));
594 strlcat(keybuf, "M-", sizeof(keybuf));
595 if (thiskey.cp != 0) {
596 utf8_encode(thiskey.cp, tmp);
597 strlcat(keybuf, tmp, sizeof(keybuf));
599 if ((keyname = unkbd(thiskey.key)) != NULL)
600 strlcat(keybuf, keyname, sizeof(keybuf));
602 tmp[0] = thiskey.key;
603 strlcat(keybuf, tmp, sizeof(keybuf));
607 TAILQ_FOREACH(k, ¤t_map->m, keymaps) {
608 if (k->meta == thiskey.meta &&
609 k->key == thiskey.key) {
611 current_map = &k->map;
613 current_map = base_map;
614 strlcpy(keybuf, "", sizeof(keybuf));
615 k->fn(current_buffer());
621 if (current_map->unhandled_input != NULL)
622 current_map->unhandled_input();
624 global_key_unbound();
626 strlcpy(keybuf, "", sizeof(keybuf));
627 current_map = base_map;
633 redraw_tab(current_tab());
637 handle_clear_minibuf(int fd, short ev, void *d)
639 free(ministate.curmesg);
640 ministate.curmesg = NULL;
653 handle_resize(int sig, short ev, void *d)
655 if (event_pending(&resizeev, EV_TIMEOUT, NULL)) {
656 event_del(&resizeev);
658 evtimer_set(&resizeev, handle_resize_nodelay, NULL);
659 evtimer_add(&resizeev, &resize_timer);
663 handle_resize_nodelay(int s, short ev, void *d)
671 /* move and resize the windows, in reverse order! */
673 mvwin(minibuf, LINES-1, 0);
674 wresize(minibuf, 1, COLS);
676 mvwin(modeline, LINES-2, 0);
677 wresize(modeline, 1, COLS);
679 body_lines = LINES-3;
683 help_cols = 0.3 * COLS;
684 help_lines = LINES-3;
686 wresize(help, help_lines, help_cols);
688 wrap_page(&helpwin, help_cols);
690 body_cols = COLS - help_cols - 1;
691 mvwin(body, 1, help_cols);
696 wresize(body, body_lines, body_cols);
698 wresize(tabline, 1, COLS);
702 wrap_page(&tab->buffer, body_cols);
707 wrap_page(struct buffer *buffer, int width)
710 const struct line *orig;
715 orig = buffer->current_line == NULL
717 : buffer->current_line->parent;
718 buffer->current_line = NULL;
720 buffer->force_redraw = 1;
722 buffer->line_off = 0;
726 TAILQ_FOREACH(l, &buffer->page.head, lines) {
727 prfx = line_prefixes[l->type].prfx1;
738 wrap_text(buffer, prfx, l, MIN(fill_column, width));
740 case LINE_PRE_CONTENT:
742 pre_width = MIN(fill_column, width);
745 hardwrap_text(buffer, l, pre_width);
749 if (orig == l && buffer->current_line == NULL) {
750 buffer->line_off = buffer->line_max-1;
751 buffer->current_line = TAILQ_LAST(&buffer->head, vhead);
754 vl = TAILQ_PREV(buffer->current_line, vhead, vlines);
755 if (vl == NULL || vl->parent != orig)
757 buffer->current_line = vl;
763 if (buffer->current_line == NULL)
764 buffer->current_line = TAILQ_FIRST(&buffer->head);
770 print_vline(int off, int width, WINDOW *window, struct vline *vl)
777 f = &line_faces[vl->parent->type];
779 /* unused, set by getyx */
783 prfx = line_prefixes[vl->parent->type].prfx1;
785 prfx = line_prefixes[vl->parent->type].prfx2;
791 wattr_on(window, body_face.left, NULL);
792 for (i = 0; i < off; i++)
794 wattr_off(window, body_face.left, NULL);
796 wattr_on(window, f->prefix, NULL);
797 wprintw(window, "%s", prfx);
798 wattr_off(window, f->prefix, NULL);
800 wattr_on(window, f->text, NULL);
801 wprintw(window, "%s", text);
802 wattr_off(window, f->text, NULL);
808 wattr_on(window, f->trail, NULL);
809 for (i = 0; i < left - off - 1; ++i)
811 wattr_off(window, f->trail, NULL);
813 wattr_on(window, body_face.right, NULL);
814 for (i = 0; i < off; i++)
816 wattr_off(window, body_face.right, NULL);
824 size_t toskip, ots, tabwidth, space, x;
825 int current, y, truncated;
831 /* unused, but setted by a getyx */
834 tabwidth = sizeof(buf)+1;
838 TAILQ_FOREACH(tab, &tabshead, tabs) {
840 if (tab->flags & TAB_CURRENT)
844 if (toskip * tabwidth < space)
849 while (toskip != 0 &&
850 (ots - toskip+1) * tabwidth < space)
855 wattr_on(tabline, tab_face.background, NULL);
856 wprintw(tabline, toskip == 0 ? " " : "<");
857 wattr_off(tabline, tab_face.background, NULL);
860 TAILQ_FOREACH(tab, &tabshead, tabs) {
868 getyx(tabline, y, x);
869 if (x + sizeof(buf)+2 >= (size_t)COLS)
872 current = tab->flags & TAB_CURRENT;
874 if (*(title = tab->buffer.page.title) == '\0')
875 title = tab->hist_cur->h;
877 if (tab->flags & TAB_URGENT)
878 strlcpy(buf, "!", sizeof(buf));
880 strlcpy(buf, " ", sizeof(buf));
882 if (strlcat(buf, title, sizeof(buf)) >= sizeof(buf)) {
883 /* truncation happens */
884 strlcpy(&buf[sizeof(buf)-4], "...", 4);
886 /* pad with spaces */
887 while (strlcat(buf, " ", sizeof(buf)) < sizeof(buf))
892 wattr_on(tabline, tab_face.current, NULL);
894 wattr_on(tabline, tab_face.tab, NULL);
896 wprintw(tabline, "%s", buf);
897 if (TAILQ_NEXT(tab, tabs) != NULL)
898 wprintw(tabline, " ");
901 wattr_off(tabline, tab_face.current, NULL);
903 wattr_off(tabline, tab_face.tab, NULL);
906 wattr_on(tabline, tab_face.background, NULL);
907 for (; x < (size_t)COLS; ++x)
908 waddch(tabline, ' ');
910 mvwprintw(tabline, 0, COLS-1, ">");
911 wattr_off(tabline, tab_face.background, NULL);
915 redraw_window(WINDOW *win, int height, int width, struct buffer *buffer)
921 * Don't bother redraw the body if nothing changed. Cursor
922 * movements count as "nothing changed" if it hasn't produced
923 * a scroll. Ensure that wmove is called though!
925 if (!buffer->force_redraw &&
926 buffer->last_line_off == buffer->line_off)
931 buffer->line_off = MIN(buffer->line_max-1, buffer->line_off);
932 buffer->force_redraw = 0;
933 buffer->last_line_off = buffer->line_off;
935 if (TAILQ_EMPTY(&buffer->head))
939 vl = nth_line(buffer, buffer->line_off);
940 for (; vl != NULL; vl = TAILQ_NEXT(vl, vlines)) {
942 print_vline(x_offset, width, win, vl);
949 wmove(win, buffer->curs_y, buffer->curs_x);
955 redraw_window(help, help_lines, help_cols, &helpwin);
959 redraw_body(struct tab *tab)
961 static struct tab *last_tab;
964 tab->buffer.force_redraw =1;
967 redraw_window(body, body_lines, body_cols, &tab->buffer);
971 trust_status_char(enum trust_state ts)
974 case TS_UNKNOWN: return 'u';
975 case TS_UNTRUSTED: return '!';
976 case TS_TRUSTED: return 'v';
977 case TS_VERIFIED: return 'V';
983 redraw_modeline(struct tab *tab)
986 int x, y, max_x, max_y;
987 const char *mode = tab->buffer.page.name;
988 const char *spin = "-\\|/";
991 wattr_on(modeline, modeline_face.background, NULL);
992 wmove(modeline, 0, 0);
994 wprintw(modeline, "-%c%c %s ",
995 spin[tab->loading_anim_step],
996 trust_status_char(tab->trust),
997 mode == NULL ? "(none)" : mode);
999 pct = (tab->buffer.line_off + tab->buffer.curs_y) * 100.0 / tab->buffer.line_max;
1001 if (tab->buffer.line_max <= (size_t)body_lines)
1002 wprintw(modeline, "All ");
1003 else if (tab->buffer.line_off == 0)
1004 wprintw(modeline, "Top ");
1005 else if (tab->buffer.line_off + body_lines >= tab->buffer.line_max)
1006 wprintw(modeline, "Bottom ");
1008 wprintw(modeline, "%.0f%% ", pct);
1010 wprintw(modeline, "%d/%d %s ",
1011 tab->buffer.line_off + tab->buffer.curs_y,
1012 tab->buffer.line_max,
1015 getyx(modeline, y, x);
1016 getmaxyx(modeline, max_y, max_x);
1021 for (; x < max_x; ++x)
1022 waddstr(modeline, "-");
1024 wattr_off(modeline, modeline_face.background, NULL);
1028 redraw_minibuffer(void)
1031 size_t off_y, off_x = 0;
1032 char *start = NULL, *c = NULL;
1034 /* unused, but set by getyx */
1037 wattr_on(minibuf, minibuffer_face.background, NULL);
1040 if (in_minibuffer) {
1041 mvwprintw(minibuf, 0, 0, "%s", ministate.prompt);
1042 if (ministate.hist_cur != NULL)
1043 wprintw(minibuf, "(%zu/%zu) ",
1044 ministate.hist_off + 1,
1045 ministate.history->len);
1047 getyx(minibuf, off_y, off_x);
1049 start = ministate.hist_cur != NULL
1050 ? ministate.hist_cur->h
1052 c = utf8_nth(ministate.buffer.current_line->line,
1053 ministate.buffer.cpoff);
1054 while (utf8_swidth_between(start, c) > (size_t)COLS/2) {
1055 start = utf8_next_cp(start);
1058 waddstr(minibuf, start);
1061 if (ministate.curmesg != NULL)
1062 wprintw(minibuf, in_minibuffer ? " [%s]" : "%s",
1065 if (!in_minibuffer && ministate.curmesg == NULL)
1066 waddstr(minibuf, keybuf);
1068 /* If nothing else, show the URL at point */
1069 if (!in_minibuffer && ministate.curmesg == NULL && *keybuf == '\0') {
1070 tab = current_tab();
1071 if (tab->buffer.current_line != NULL &&
1072 tab->buffer.current_line->parent->type == LINE_LINK)
1073 waddstr(minibuf, tab->buffer.current_line->parent->alt);
1077 wmove(minibuf, 0, off_x + utf8_swidth_between(start, c));
1079 wattr_off(minibuf, minibuffer_face.background, NULL);
1083 redraw_tab(struct tab *tab)
1090 restore_cursor(&tab->buffer);
1094 redraw_modeline(tab);
1095 redraw_minibuffer();
1097 wnoutrefresh(tabline);
1098 wnoutrefresh(modeline);
1100 if (in_minibuffer) {
1102 wnoutrefresh(minibuf);
1104 wnoutrefresh(minibuf);
1112 emit_help_item(char *prfx, void *fn)
1117 for (cmd = cmds; cmd->cmd != NULL; ++cmd) {
1121 assert(cmd != NULL);
1123 if ((l = calloc(1, sizeof(*l))) == NULL)
1126 l->type = LINE_TEXT;
1129 asprintf(&l->line, "%s %s", prfx, cmd->cmd);
1131 if (TAILQ_EMPTY(&helpwin.page.head))
1132 TAILQ_INSERT_HEAD(&helpwin.page.head, l, lines);
1134 TAILQ_INSERT_TAIL(&helpwin.page.head, l, lines);
1138 rec_compute_help(struct kmap *keymap, char *prfx, size_t len)
1144 TAILQ_FOREACH(k, &keymap->m, keymaps) {
1145 strlcpy(p, prfx, sizeof(p));
1147 strlcat(p, " ", sizeof(p));
1149 strlcat(p, "M-", sizeof(p));
1150 if ((kn = unkbd(k->key)) != NULL)
1151 strlcat(p, kn, sizeof(p));
1153 strlcat(p, keyname(k->key), sizeof(p));
1156 rec_compute_help(&k->map, p, sizeof(p));
1158 emit_help_item(p, k->fn);
1163 recompute_help(void)
1167 empty_vlist(&helpwin);
1168 empty_linelist(&helpwin);
1169 rec_compute_help(current_map, p, sizeof(p));
1170 wrap_page(&helpwin, help_cols);
1174 vmessage(const char *fmt, va_list ap)
1176 if (evtimer_pending(&clminibufev, NULL))
1177 evtimer_del(&clminibufev);
1179 free(ministate.curmesg);
1180 ministate.curmesg = NULL;
1183 evtimer_set(&clminibufev, handle_clear_minibuf, NULL);
1184 evtimer_add(&clminibufev, &clminibufev_timer);
1186 /* TODO: what to do if the allocation fails here? */
1187 if (vasprintf(&ministate.curmesg, fmt, ap) == -1)
1188 ministate.curmesg = NULL;
1191 redraw_minibuffer();
1192 if (in_minibuffer) {
1202 message(const char *fmt, ...)
1212 start_loading_anim(struct tab *tab)
1214 if (tab->loading_anim)
1216 tab->loading_anim = 1;
1217 evtimer_set(&tab->loadingev, update_loading_anim, tab);
1218 evtimer_add(&tab->loadingev, &loadingev_timer);
1222 update_loading_anim(int fd, short ev, void *d)
1224 struct tab *tab = d;
1226 tab->loading_anim_step = (tab->loading_anim_step+1)%4;
1228 if (tab->flags & TAB_CURRENT) {
1229 redraw_modeline(tab);
1236 evtimer_add(&tab->loadingev, &loadingev_timer);
1240 stop_loading_anim(struct tab *tab)
1242 if (!tab->loading_anim)
1244 evtimer_del(&tab->loadingev);
1245 tab->loading_anim = 0;
1246 tab->loading_anim_step = 0;
1248 if (!(tab->flags & TAB_CURRENT))
1251 redraw_modeline(tab);
1260 load_url_in_tab(struct tab *tab, const char *url)
1262 message("Loading %s...", url);
1263 start_loading_anim(tab);
1266 tab->buffer.curs_x = 0;
1267 tab->buffer.curs_y = 0;
1272 enter_minibuffer(void (*self_insert_fn)(void), void (*donefn)(void),
1273 void (*abortfn)(void), struct histhead *hist)
1276 base_map = &minibuffer_map;
1277 current_map = &minibuffer_map;
1279 base_map->unhandled_input = self_insert_fn;
1281 ministate.donefn = donefn;
1282 ministate.abortfn = abortfn;
1283 memset(ministate.buf, 0, sizeof(ministate.buf));
1284 ministate.buffer.current_line = &ministate.vline;
1285 ministate.buffer.current_line->line = ministate.buf;
1286 ministate.buffer.cpoff = 0;
1287 strlcpy(ministate.buf, "", sizeof(ministate.prompt));
1289 ministate.history = hist;
1290 ministate.hist_cur = NULL;
1291 ministate.hist_off = 0;
1295 exit_minibuffer(void)
1300 base_map = &global_map;
1301 current_map = &global_map;
1305 switch_to_tab(struct tab *tab)
1309 TAILQ_FOREACH(t, &tabshead, tabs) {
1310 t->flags &= ~TAB_CURRENT;
1313 tab->flags |= TAB_CURRENT;
1314 tab->flags &= ~TAB_URGENT;
1320 return tab_counter++;
1324 new_tab(const char *url)
1328 if ((tab = calloc(1, sizeof(*tab))) == NULL) {
1334 TAILQ_INIT(&tab->hist.head);
1336 TAILQ_INIT(&tab->buffer.head);
1338 tab->id = tab_new_id();
1341 if (TAILQ_EMPTY(&tabshead))
1342 TAILQ_INSERT_HEAD(&tabshead, tab, tabs);
1344 TAILQ_INSERT_TAIL(&tabshead, tab, tabs);
1346 load_url_in_tab(tab, url);
1351 session_new_tab_cb(const char *url)
1359 fprintf(stderr, "USAGE: %s [-hn] [-c config] [url]\n", getprogname());
1360 fprintf(stderr, "version: " PACKAGE " " VERSION "\n");
1364 ui_init(int argc, char * const *argv)
1366 char path[PATH_MAX];
1367 const char *url = NEW_TAB_URL;
1368 int ch, configtest = 0, fonf = 0;
1370 if (getenv("NO_COLOR") != NULL)
1373 strlcpy(path, getenv("HOME"), sizeof(path));
1374 strlcat(path, "/.telescope/config", sizeof(path));
1376 while ((ch = getopt(argc, argv, "c:hn")) != -1) {
1380 strlcpy(path, optarg, sizeof(path));
1397 parseconfig(path, fonf);
1406 setlocale(LC_ALL, "");
1408 TAILQ_INIT(&global_map.m);
1409 global_map.unhandled_input = global_key_unbound;
1411 TAILQ_INIT(&minibuffer_map.m);
1413 TAILQ_INIT(&eecmd_history.head);
1414 TAILQ_INIT(&ir_history.head);
1415 TAILQ_INIT(&lu_history.head);
1417 ministate.line.type = LINE_TEXT;
1418 ministate.vline.parent = &ministate.line;
1419 ministate.buffer.current_line = &ministate.vline;
1421 /* initialize help window */
1422 TAILQ_INIT(&helpwin.head);
1424 base_map = &global_map;
1425 current_map = &global_map;
1426 load_default_keys();
1430 if (enable_colors) {
1433 use_default_colors();
1438 config_apply_style();
1443 intrflush(stdscr, FALSE);
1445 if ((tabline = newwin(1, COLS, 0, 0)) == NULL)
1447 if ((body = newwin(LINES - 3, COLS, 1, 0)) == NULL)
1449 if ((modeline = newwin(1, COLS, LINES-2, 0)) == NULL)
1451 if ((minibuf = newwin(1, COLS, LINES-1, 0)) == NULL)
1453 if ((help = newwin(1, 1, 1, 0)) == NULL)
1456 body_lines = LINES-3;
1459 wbkgd(body, body_face.body);
1464 scrollok(body, FALSE);
1466 /* non-blocking input */
1469 mvwprintw(body, 0, 0, "");
1471 event_set(&stdioev, 0, EV_READ | EV_PERSIST, dispatch_stdio, NULL);
1472 event_add(&stdioev, NULL);
1474 signal_set(&winchev, SIGWINCH, handle_resize, NULL);
1475 signal_add(&winchev, NULL);
1477 load_last_session(session_new_tab_cb);
1478 if (strcmp(url, NEW_TAB_URL) || TAILQ_EMPTY(&tabshead))
1485 ui_on_tab_loaded(struct tab *tab)
1487 stop_loading_anim(tab);
1488 message("Loaded %s", tab->hist_cur->h);
1499 ui_on_tab_refresh(struct tab *tab)
1501 wrap_page(&tab->buffer, body_cols);
1502 if (tab->flags & TAB_CURRENT) {
1503 restore_cursor(&tab->buffer);
1506 tab->flags |= TAB_URGENT;
1516 ui_toggle_side_window(void)
1518 side_window = !side_window;
1523 * ugly hack, but otherwise the window doesn't get updated
1524 * until I call handle_resize a second time (i.e. C-l). I
1525 * will be happy to know why something like this is needed.
1527 handle_resize_nodelay(0, 0, NULL);
1528 handle_resize_nodelay(0, 0, NULL);
1532 ui_schedule_redraw(void)
1534 handle_resize_nodelay(0, 0, NULL);
1538 ui_require_input(struct tab *tab, int hide)
1540 /* TODO: hard-switching to another tab is ugly */
1543 enter_minibuffer(ir_self_insert, ir_select, exit_minibuffer,
1545 strlcpy(ministate.prompt, "Input required: ",
1546 sizeof(ministate.prompt));
1551 ui_yornp(const char *prompt, void (*fn)(int, unsigned int),
1556 if (in_minibuffer) {
1563 enter_minibuffer(yornp_self_insert, yornp_self_insert,
1566 len = sizeof(ministate.prompt);
1567 strlcpy(ministate.prompt, prompt, len);
1568 strlcat(ministate.prompt, " (y or n) ", len);
1569 redraw_tab(current_tab());
1573 ui_read(const char *prompt, void (*fn)(const char*, unsigned int),
1583 enter_minibuffer(read_self_insert, read_select, read_abort,
1586 len = sizeof(ministate.prompt);
1587 strlcpy(ministate.prompt, prompt, len);
1588 strlcat(ministate.prompt, ": ", len);
1589 redraw_tab(current_tab());