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.
33 #include "telescope.h"
46 static struct event stdioev, winchev;
48 static void load_default_keys(void);
50 static void global_key_unbound(void);
51 static void minibuffer_hist_save_entry(void);
52 static void minibuffer_self_insert(void);
53 static void yornp_self_insert(void);
54 static void yornp_abort(void);
55 static void read_self_insert(void);
56 static void read_abort(void);
57 static void read_select(void);
59 static struct vline *nth_line(struct buffer*, size_t);
60 static struct buffer *current_buffer(void);
61 static int readkey(void);
62 static void dispatch_stdio(int, short, void*);
63 static void handle_clear_minibuf(int, short, void*);
64 static void handle_resize(int, short, void*);
65 static void handle_resize_nodelay(int, short, void*);
66 static int wrap_page(struct buffer*, int);
67 static void print_vline(int, int, WINDOW*, struct vline*);
68 static void redraw_tabline(void);
69 static void redraw_window(WINDOW*, int, int, struct buffer*);
70 static void redraw_help(void);
71 static void redraw_body(struct tab*);
72 static void redraw_modeline(struct tab*);
73 static void redraw_minibuffer(void);
74 static void redraw_tab(struct tab*);
75 static void emit_help_item(char*, void*);
76 static void rec_compute_help(struct kmap*, char*, size_t);
77 static void recompute_help(void);
78 static void update_loading_anim(int, short, void*);
79 static void stop_loading_anim(struct tab*);
80 static void session_new_tab_cb(const char*);
81 static void usage(void);
85 struct thiskey thiskey;
87 static struct event resizeev;
88 static struct timeval resize_timer = { 0, 250000 };
90 static WINDOW *tabline, *body, *modeline, *minibuf;
92 int body_lines, body_cols;
95 static struct buffer helpwin;
96 static int help_lines, help_cols;
98 static int side_window;
100 static struct event clminibufev;
101 static struct timeval clminibufev_timer = { 5, 0 };
102 static struct timeval loadingev_timer = { 0, 250000 };
104 static uint32_t tab_counter;
106 static char keybuf[64];
108 static void (*yornp_cb)(int, unsigned int);
109 static unsigned int yornp_data;
111 static void (*read_cb)(const char*, unsigned int);
112 static unsigned int read_data;
114 struct kmap global_map,
119 struct histhead eecmd_history,
126 struct ministate ministate;
129 update_x_offset(void)
131 if (olivetti_mode && fill_column < body_cols)
132 x_offset = (body_cols - fill_column)/2;
138 global_set_key(const char *key, void (*fn)(struct buffer*))
140 if (!kmap_define_key(&global_map, key, fn))
145 minibuffer_set_key(const char *key, void (*fn)(struct buffer*))
147 if (!kmap_define_key(&minibuffer_map, key, fn))
152 load_default_keys(void)
154 /* === global map === */
157 global_set_key("C-p", cmd_previous_line);
158 global_set_key("C-n", cmd_next_line);
159 global_set_key("C-f", cmd_forward_char);
160 global_set_key("C-b", cmd_backward_char);
161 global_set_key("M-{", cmd_backward_paragraph);
162 global_set_key("M-}", cmd_forward_paragraph);
163 global_set_key("C-a", cmd_move_beginning_of_line);
164 global_set_key("C-e", cmd_move_end_of_line);
166 global_set_key("M-v", cmd_scroll_up);
167 global_set_key("C-v", cmd_scroll_down);
168 global_set_key("M-space", cmd_scroll_up);
169 global_set_key("space", cmd_scroll_down);
171 global_set_key("M-<", cmd_beginning_of_buffer);
172 global_set_key("M->", cmd_end_of_buffer);
174 global_set_key("C-x C-c", cmd_kill_telescope);
176 global_set_key("C-g", cmd_clear_minibuf);
178 global_set_key("M-x", cmd_execute_extended_command);
180 global_set_key("C-c p", cmd_previous_heading);
181 global_set_key("C-c n", cmd_next_heading);
183 global_set_key(">", cmd_load_url);
184 global_set_key("C-x C-f", cmd_load_url);
185 global_set_key("C-x M-f", cmd_load_current_url);
187 global_set_key("C-x t 0", cmd_tab_close);
188 global_set_key("C-x t 1", cmd_tab_close_other);
189 global_set_key("C-x t 2", cmd_tab_new);
190 global_set_key("C-x t o", cmd_tab_next);
191 global_set_key("C-x t O", cmd_tab_previous);
192 global_set_key("C-x t m", cmd_tab_move);
193 global_set_key("C-x t M", cmd_tab_move_to);
195 global_set_key("C-M-b", cmd_previous_page);
196 global_set_key("C-M-f", cmd_next_page);
198 global_set_key("<f7> a", cmd_bookmark_page);
199 global_set_key("<f7> <f7>", cmd_list_bookmarks);
202 global_set_key("k", cmd_previous_line);
203 global_set_key("j", cmd_next_line);
204 global_set_key("l", cmd_forward_char);
205 global_set_key("h", cmd_backward_char);
206 global_set_key("{", cmd_backward_paragraph);
207 global_set_key("}", cmd_forward_paragraph);
208 global_set_key("^", cmd_move_beginning_of_line);
209 global_set_key("$", cmd_move_end_of_line);
211 global_set_key("K", cmd_scroll_line_up);
212 global_set_key("J", cmd_scroll_line_down);
214 global_set_key("g g", cmd_beginning_of_buffer);
215 global_set_key("G", cmd_end_of_buffer);
217 global_set_key("g D", cmd_tab_close);
218 global_set_key("g N", cmd_tab_new);
219 global_set_key("g t", cmd_tab_next);
220 global_set_key("g T", cmd_tab_previous);
221 global_set_key("g M-t", cmd_tab_move);
222 global_set_key("g M-T", cmd_tab_move_to);
224 global_set_key("H", cmd_previous_page);
225 global_set_key("L", cmd_next_page);
228 global_set_key("q", cmd_kill_telescope);
230 global_set_key("esc", cmd_clear_minibuf);
232 global_set_key(":", cmd_execute_extended_command);
235 global_set_key("<up>", cmd_previous_line);
236 global_set_key("<down>", cmd_next_line);
237 global_set_key("<right>", cmd_forward_char);
238 global_set_key("<left>", cmd_backward_char);
239 global_set_key("<prior>", cmd_scroll_up);
240 global_set_key("<next>", cmd_scroll_down);
242 global_set_key("M-<left>", cmd_previous_page);
243 global_set_key("M-<right>", cmd_next_page);
245 /* "ncurses standard" */
246 global_set_key("C-l", cmd_redraw);
249 global_set_key("<f1>", cmd_toggle_help);
250 global_set_key("C-m", cmd_push_button);
251 global_set_key("M-enter", cmd_push_button_new_tab);
252 global_set_key("M-tab", cmd_previous_button);
253 global_set_key("backtab", cmd_previous_button);
254 global_set_key("tab", cmd_next_button);
256 /* === minibuffer map === */
257 minibuffer_set_key("ret", cmd_mini_complete_and_exit);
258 minibuffer_set_key("C-g", cmd_mini_abort);
259 minibuffer_set_key("esc", cmd_mini_abort);
260 minibuffer_set_key("C-d", cmd_mini_delete_char);
261 minibuffer_set_key("del", cmd_mini_delete_backward_char);
262 minibuffer_set_key("backspace", cmd_mini_delete_backward_char);
263 minibuffer_set_key("C-h", cmd_mini_delete_backward_char);
265 minibuffer_set_key("C-b", cmd_backward_char);
266 minibuffer_set_key("C-f", cmd_forward_char);
267 minibuffer_set_key("<left>", cmd_backward_char);
268 minibuffer_set_key("<right>", cmd_forward_char);
269 minibuffer_set_key("C-e", cmd_move_end_of_line);
270 minibuffer_set_key("C-a", cmd_move_beginning_of_line);
271 minibuffer_set_key("<end>", cmd_move_end_of_line);
272 minibuffer_set_key("<home>", cmd_move_beginning_of_line);
273 minibuffer_set_key("C-k", cmd_mini_kill_line);
275 minibuffer_set_key("M-p", cmd_mini_previous_history_element);
276 minibuffer_set_key("M-n", cmd_mini_next_history_element);
277 minibuffer_set_key("<up>", cmd_mini_previous_history_element);
278 minibuffer_set_key("<down>", cmd_mini_next_history_element);
282 save_excursion(struct excursion *place, struct buffer *buffer)
284 place->curs_x = buffer->curs_x;
285 place->curs_y = buffer->curs_y;
286 place->line_off = buffer->line_off;
287 place->current_line = buffer->current_line;
288 place->cpoff = buffer->cpoff;
292 restore_excursion(struct excursion *place, struct buffer *buffer)
294 buffer->curs_x = place->curs_x;
295 buffer->curs_y = place->curs_y;
296 buffer->line_off = place->line_off;
297 buffer->current_line = place->current_line;
298 buffer->cpoff = place->cpoff;
302 restore_cursor(struct buffer *buffer)
307 vl = buffer->current_line;
308 if (vl == NULL || vl->line == NULL)
309 buffer->curs_x = buffer->cpoff = 0;
311 buffer->curs_x = utf8_snwidth(vl->line, buffer->cpoff);
313 buffer->curs_x += x_offset;
316 prfx = line_prefixes[vl->parent->type].prfx1;
317 buffer->curs_x += utf8_swidth(prfx);
322 global_key_unbound(void)
324 message("%s is undefined", keybuf);
328 minibuffer_hist_save_entry(void)
332 if (ministate.history == NULL)
335 if ((hist = calloc(1, sizeof(*hist))) == NULL)
338 strlcpy(hist->h, ministate.buf, sizeof(hist->h));
340 if (TAILQ_EMPTY(&ministate.history->head))
341 TAILQ_INSERT_HEAD(&ministate.history->head, hist, entries);
343 TAILQ_INSERT_TAIL(&ministate.history->head, hist, entries);
344 ministate.history->len++;
348 * taint the minibuffer cache: if we're currently showing a history
349 * element, copy that to the current buf and reset the "history
353 minibuffer_taint_hist(void)
355 if (ministate.hist_cur == NULL)
358 strlcpy(ministate.buf, ministate.hist_cur->h, sizeof(ministate.buf));
359 ministate.hist_cur = NULL;
363 minibuffer_self_insert(void)
365 char *c, tmp[5] = {0};
368 minibuffer_taint_hist();
373 len = utf8_encode(thiskey.cp, tmp);
374 c = utf8_nth(ministate.buffer.current_line->line, ministate.buffer.cpoff);
375 if (c + len > ministate.buf + sizeof(ministate.buf) - 1)
378 memmove(c + len, c, strlen(c)+1);
380 ministate.buffer.cpoff++;
384 eecmd_self_insert(void)
386 if (thiskey.meta || unicode_isspace(thiskey.cp) ||
387 !unicode_isgraph(thiskey.cp)) {
388 global_key_unbound();
392 minibuffer_self_insert();
400 for (cmd = cmds; cmd->cmd != NULL; ++cmd) {
401 if (!strcmp(cmd->cmd, ministate.buf)) {
403 minibuffer_hist_save_entry();
404 cmd->fn(current_buffer());
415 minibuffer_self_insert();
421 char buf[1025] = {0};
428 minibuffer_hist_save_entry();
430 /* a bit ugly but... */
431 memcpy(&uri, &tab->uri, sizeof(tab->uri));
432 phos_uri_set_query(&uri, ministate.buf);
433 phos_serialize_uri(&uri, buf, sizeof(buf));
434 load_url_in_tab(tab, buf);
440 if (thiskey.meta || unicode_isspace(thiskey.key) ||
441 !unicode_isgraph(thiskey.key)) {
442 global_key_unbound();
446 minibuffer_self_insert();
453 minibuffer_hist_save_entry();
454 load_url_in_tab(current_tab(), ministate.buf);
461 if (*ministate.buf != '\0')
462 add_to_bookmarks(ministate.buf);
468 yornp_self_insert(void)
470 if (thiskey.key != 'y' && thiskey.key != 'n') {
471 message("Please answer y or n");
476 yornp_cb(thiskey.key == 'y', yornp_data);
483 yornp_cb(0, yornp_data);
487 read_self_insert(void)
489 if (thiskey.meta || !unicode_isgraph(thiskey.cp)) {
490 global_key_unbound();
494 minibuffer_self_insert();
501 read_cb(NULL, read_data);
508 minibuffer_hist_save_entry();
509 read_cb(ministate.buf, read_data);
512 static struct vline *
513 nth_line(struct buffer *buffer, size_t n)
519 TAILQ_FOREACH(vl, &buffer->head, vlines) {
534 TAILQ_FOREACH(t, &tabshead, tabs) {
535 if (t->flags & TAB_CURRENT)
547 return &ministate.buffer;
548 return ¤t_tab()->buffer;
556 if ((thiskey.key = wgetch(body)) == ERR)
559 thiskey.meta = thiskey.key == 27;
561 thiskey.key = wgetch(body);
562 if (thiskey.key == ERR || thiskey.key == 27) {
569 if ((unsigned int)thiskey.key < UINT8_MAX) {
571 if (!utf8_decode(&state, &thiskey.cp, (uint8_t)thiskey.key))
573 if ((thiskey.key = wgetch(body)) == ERR) {
574 message("Error decoding user input");
584 dispatch_stdio(int fd, short ev, void *d)
593 if (keybuf[0] != '\0')
594 strlcat(keybuf, " ", sizeof(keybuf));
596 strlcat(keybuf, "M-", sizeof(keybuf));
597 if (thiskey.cp != 0) {
598 utf8_encode(thiskey.cp, tmp);
599 strlcat(keybuf, tmp, sizeof(keybuf));
601 if ((keyname = unkbd(thiskey.key)) != NULL)
602 strlcat(keybuf, keyname, sizeof(keybuf));
604 tmp[0] = thiskey.key;
605 strlcat(keybuf, tmp, sizeof(keybuf));
609 TAILQ_FOREACH(k, ¤t_map->m, keymaps) {
610 if (k->meta == thiskey.meta &&
611 k->key == thiskey.key) {
613 current_map = &k->map;
615 current_map = base_map;
616 strlcpy(keybuf, "", sizeof(keybuf));
617 k->fn(current_buffer());
623 if (current_map->unhandled_input != NULL)
624 current_map->unhandled_input();
626 global_key_unbound();
628 strlcpy(keybuf, "", sizeof(keybuf));
629 current_map = base_map;
635 redraw_tab(current_tab());
639 handle_clear_minibuf(int fd, short ev, void *d)
641 free(ministate.curmesg);
642 ministate.curmesg = NULL;
655 handle_resize(int sig, short ev, void *d)
657 if (event_pending(&resizeev, EV_TIMEOUT, NULL)) {
658 event_del(&resizeev);
660 evtimer_set(&resizeev, handle_resize_nodelay, NULL);
661 evtimer_add(&resizeev, &resize_timer);
665 handle_resize_nodelay(int s, short ev, void *d)
673 /* move and resize the windows, in reverse order! */
675 mvwin(minibuf, LINES-1, 0);
676 wresize(minibuf, 1, COLS);
678 mvwin(modeline, LINES-2, 0);
679 wresize(modeline, 1, COLS);
681 body_lines = LINES-3;
685 help_cols = 0.3 * COLS;
686 help_lines = LINES-3;
688 wresize(help, help_lines, help_cols);
690 wrap_page(&helpwin, help_cols);
692 body_cols = COLS - help_cols - 1;
693 mvwin(body, 1, help_cols);
698 wresize(body, body_lines, body_cols);
700 wresize(tabline, 1, COLS);
704 wrap_page(&tab->buffer, body_cols);
709 wrap_page(struct buffer *buffer, int width)
712 const struct line *orig;
717 orig = buffer->current_line == NULL
719 : buffer->current_line->parent;
720 buffer->current_line = NULL;
722 buffer->force_redraw = 1;
724 buffer->line_off = 0;
728 TAILQ_FOREACH(l, &buffer->page.head, lines) {
729 prfx = line_prefixes[l->type].prfx1;
740 wrap_text(buffer, prfx, l, MIN(fill_column, width));
742 case LINE_PRE_CONTENT:
744 pre_width = MIN(fill_column, width);
747 hardwrap_text(buffer, l, pre_width);
751 if (orig == l && buffer->current_line == NULL) {
752 buffer->line_off = buffer->line_max-1;
753 buffer->current_line = TAILQ_LAST(&buffer->head, vhead);
756 vl = TAILQ_PREV(buffer->current_line, vhead, vlines);
757 if (vl == NULL || vl->parent != orig)
759 buffer->current_line = vl;
765 if (buffer->current_line == NULL)
766 buffer->current_line = TAILQ_FIRST(&buffer->head);
772 print_vline(int off, int width, WINDOW *window, struct vline *vl)
779 f = &line_faces[vl->parent->type];
781 /* unused, set by getyx */
785 prfx = line_prefixes[vl->parent->type].prfx1;
787 prfx = line_prefixes[vl->parent->type].prfx2;
793 wattr_on(window, body_face.left, NULL);
794 for (i = 0; i < off; i++)
796 wattr_off(window, body_face.left, NULL);
798 wattr_on(window, f->prefix, NULL);
799 wprintw(window, "%s", prfx);
800 wattr_off(window, f->prefix, NULL);
802 wattr_on(window, f->text, NULL);
803 wprintw(window, "%s", text);
804 wattr_off(window, f->text, NULL);
810 wattr_on(window, f->trail, NULL);
811 for (i = 0; i < left - off - 1; ++i)
813 wattr_off(window, f->trail, NULL);
815 wattr_on(window, body_face.right, NULL);
816 for (i = 0; i < off; i++)
818 wattr_off(window, body_face.right, NULL);
826 size_t toskip, ots, tabwidth, space, x;
827 int current, y, truncated;
833 /* unused, but setted by a getyx */
836 tabwidth = sizeof(buf)+1;
840 TAILQ_FOREACH(tab, &tabshead, tabs) {
842 if (tab->flags & TAB_CURRENT)
846 if (toskip * tabwidth < space)
851 while (toskip != 0 &&
852 (ots - toskip+1) * tabwidth < space)
857 wattr_on(tabline, tab_face.background, NULL);
858 wprintw(tabline, toskip == 0 ? " " : "<");
859 wattr_off(tabline, tab_face.background, NULL);
862 TAILQ_FOREACH(tab, &tabshead, tabs) {
870 getyx(tabline, y, x);
871 if (x + sizeof(buf)+2 >= (size_t)COLS)
874 current = tab->flags & TAB_CURRENT;
876 if (*(title = tab->buffer.page.title) == '\0')
877 title = tab->hist_cur->h;
879 if (tab->flags & TAB_URGENT)
880 strlcpy(buf, "!", sizeof(buf));
882 strlcpy(buf, " ", sizeof(buf));
884 if (strlcat(buf, title, sizeof(buf)) >= sizeof(buf)) {
885 /* truncation happens */
886 strlcpy(&buf[sizeof(buf)-4], "...", 4);
888 /* pad with spaces */
889 while (strlcat(buf, " ", sizeof(buf)) < sizeof(buf))
894 wattr_on(tabline, tab_face.current, NULL);
896 wattr_on(tabline, tab_face.tab, NULL);
898 wprintw(tabline, "%s", buf);
899 if (TAILQ_NEXT(tab, tabs) != NULL)
900 wprintw(tabline, " ");
903 wattr_off(tabline, tab_face.current, NULL);
905 wattr_off(tabline, tab_face.tab, NULL);
908 wattr_on(tabline, tab_face.background, NULL);
909 for (; x < (size_t)COLS; ++x)
910 waddch(tabline, ' ');
912 mvwprintw(tabline, 0, COLS-1, ">");
913 wattr_off(tabline, tab_face.background, NULL);
917 redraw_window(WINDOW *win, int height, int width, struct buffer *buffer)
923 * Don't bother redraw the body if nothing changed. Cursor
924 * movements count as "nothing changed" if it hasn't produced
925 * a scroll. Ensure that wmove is called though!
927 if (!buffer->force_redraw &&
928 buffer->last_line_off == buffer->line_off)
933 buffer->line_off = MIN(buffer->line_max-1, buffer->line_off);
934 buffer->force_redraw = 0;
935 buffer->last_line_off = buffer->line_off;
937 if (TAILQ_EMPTY(&buffer->head))
941 vl = nth_line(buffer, buffer->line_off);
942 for (; vl != NULL; vl = TAILQ_NEXT(vl, vlines)) {
944 print_vline(x_offset, width, win, vl);
951 wmove(win, buffer->curs_y, buffer->curs_x);
957 redraw_window(help, help_lines, help_cols, &helpwin);
961 redraw_body(struct tab *tab)
963 static struct tab *last_tab;
966 tab->buffer.force_redraw =1;
969 redraw_window(body, body_lines, body_cols, &tab->buffer);
973 trust_status_char(enum trust_state ts)
976 case TS_UNKNOWN: return 'u';
977 case TS_UNTRUSTED: return '!';
978 case TS_TRUSTED: return 'v';
979 case TS_VERIFIED: return 'V';
985 redraw_modeline(struct tab *tab)
988 int x, y, max_x, max_y;
989 const char *mode = tab->buffer.page.name;
990 const char *spin = "-\\|/";
993 wattr_on(modeline, modeline_face.background, NULL);
994 wmove(modeline, 0, 0);
996 wprintw(modeline, "-%c%c %s ",
997 spin[tab->loading_anim_step],
998 trust_status_char(tab->trust),
999 mode == NULL ? "(none)" : mode);
1001 pct = (tab->buffer.line_off + tab->buffer.curs_y) * 100.0 / tab->buffer.line_max;
1003 if (tab->buffer.line_max <= (size_t)body_lines)
1004 wprintw(modeline, "All ");
1005 else if (tab->buffer.line_off == 0)
1006 wprintw(modeline, "Top ");
1007 else if (tab->buffer.line_off + body_lines >= tab->buffer.line_max)
1008 wprintw(modeline, "Bottom ");
1010 wprintw(modeline, "%.0f%% ", pct);
1012 wprintw(modeline, "%d/%d %s ",
1013 tab->buffer.line_off + tab->buffer.curs_y,
1014 tab->buffer.line_max,
1017 getyx(modeline, y, x);
1018 getmaxyx(modeline, max_y, max_x);
1023 for (; x < max_x; ++x)
1024 waddstr(modeline, "-");
1026 wattr_off(modeline, modeline_face.background, NULL);
1030 redraw_minibuffer(void)
1033 size_t off_y, off_x = 0;
1034 char *start = NULL, *c = NULL;
1036 /* unused, but set by getyx */
1039 wattr_on(minibuf, minibuffer_face.background, NULL);
1042 if (in_minibuffer) {
1043 mvwprintw(minibuf, 0, 0, "%s", ministate.prompt);
1044 if (ministate.hist_cur != NULL)
1045 wprintw(minibuf, "(%zu/%zu) ",
1046 ministate.hist_off + 1,
1047 ministate.history->len);
1049 getyx(minibuf, off_y, off_x);
1051 start = ministate.hist_cur != NULL
1052 ? ministate.hist_cur->h
1054 c = utf8_nth(ministate.buffer.current_line->line,
1055 ministate.buffer.cpoff);
1056 while (utf8_swidth_between(start, c) > (size_t)COLS/2) {
1057 start = utf8_next_cp(start);
1060 waddstr(minibuf, start);
1063 if (ministate.curmesg != NULL)
1064 wprintw(minibuf, in_minibuffer ? " [%s]" : "%s",
1067 if (!in_minibuffer && ministate.curmesg == NULL)
1068 waddstr(minibuf, keybuf);
1070 /* If nothing else, show the URL at point */
1071 if (!in_minibuffer && ministate.curmesg == NULL && *keybuf == '\0') {
1072 tab = current_tab();
1073 if (tab->buffer.current_line != NULL &&
1074 tab->buffer.current_line->parent->type == LINE_LINK)
1075 waddstr(minibuf, tab->buffer.current_line->parent->alt);
1079 wmove(minibuf, 0, off_x + utf8_swidth_between(start, c));
1081 wattr_off(minibuf, minibuffer_face.background, NULL);
1085 redraw_tab(struct tab *tab)
1092 restore_cursor(&tab->buffer);
1096 redraw_modeline(tab);
1097 redraw_minibuffer();
1099 wnoutrefresh(tabline);
1100 wnoutrefresh(modeline);
1102 if (in_minibuffer) {
1104 wnoutrefresh(minibuf);
1106 wnoutrefresh(minibuf);
1114 emit_help_item(char *prfx, void *fn)
1119 for (cmd = cmds; cmd->cmd != NULL; ++cmd) {
1123 assert(cmd != NULL);
1125 if ((l = calloc(1, sizeof(*l))) == NULL)
1128 l->type = LINE_TEXT;
1131 asprintf(&l->line, "%s %s", prfx, cmd->cmd);
1133 if (TAILQ_EMPTY(&helpwin.page.head))
1134 TAILQ_INSERT_HEAD(&helpwin.page.head, l, lines);
1136 TAILQ_INSERT_TAIL(&helpwin.page.head, l, lines);
1140 rec_compute_help(struct kmap *keymap, char *prfx, size_t len)
1146 TAILQ_FOREACH(k, &keymap->m, keymaps) {
1147 strlcpy(p, prfx, sizeof(p));
1149 strlcat(p, " ", sizeof(p));
1151 strlcat(p, "M-", sizeof(p));
1152 if ((kn = unkbd(k->key)) != NULL)
1153 strlcat(p, kn, sizeof(p));
1155 strlcat(p, keyname(k->key), sizeof(p));
1158 rec_compute_help(&k->map, p, sizeof(p));
1160 emit_help_item(p, k->fn);
1165 recompute_help(void)
1169 empty_vlist(&helpwin);
1170 empty_linelist(&helpwin);
1171 rec_compute_help(current_map, p, sizeof(p));
1172 wrap_page(&helpwin, help_cols);
1176 vmessage(const char *fmt, va_list ap)
1178 if (evtimer_pending(&clminibufev, NULL))
1179 evtimer_del(&clminibufev);
1181 free(ministate.curmesg);
1182 ministate.curmesg = NULL;
1185 evtimer_set(&clminibufev, handle_clear_minibuf, NULL);
1186 evtimer_add(&clminibufev, &clminibufev_timer);
1188 /* TODO: what to do if the allocation fails here? */
1189 if (vasprintf(&ministate.curmesg, fmt, ap) == -1)
1190 ministate.curmesg = NULL;
1193 redraw_minibuffer();
1194 if (in_minibuffer) {
1204 message(const char *fmt, ...)
1214 start_loading_anim(struct tab *tab)
1216 if (tab->loading_anim)
1218 tab->loading_anim = 1;
1219 evtimer_set(&tab->loadingev, update_loading_anim, tab);
1220 evtimer_add(&tab->loadingev, &loadingev_timer);
1224 update_loading_anim(int fd, short ev, void *d)
1226 struct tab *tab = d;
1228 tab->loading_anim_step = (tab->loading_anim_step+1)%4;
1230 if (tab->flags & TAB_CURRENT) {
1231 redraw_modeline(tab);
1238 evtimer_add(&tab->loadingev, &loadingev_timer);
1242 stop_loading_anim(struct tab *tab)
1244 if (!tab->loading_anim)
1246 evtimer_del(&tab->loadingev);
1247 tab->loading_anim = 0;
1248 tab->loading_anim_step = 0;
1250 if (!(tab->flags & TAB_CURRENT))
1253 redraw_modeline(tab);
1262 load_url_in_tab(struct tab *tab, const char *url)
1264 message("Loading %s...", url);
1265 start_loading_anim(tab);
1268 tab->buffer.curs_x = 0;
1269 tab->buffer.curs_y = 0;
1274 enter_minibuffer(void (*self_insert_fn)(void), void (*donefn)(void),
1275 void (*abortfn)(void), struct histhead *hist)
1278 base_map = &minibuffer_map;
1279 current_map = &minibuffer_map;
1281 base_map->unhandled_input = self_insert_fn;
1283 ministate.donefn = donefn;
1284 ministate.abortfn = abortfn;
1285 memset(ministate.buf, 0, sizeof(ministate.buf));
1286 ministate.buffer.current_line = &ministate.vline;
1287 ministate.buffer.current_line->line = ministate.buf;
1288 ministate.buffer.cpoff = 0;
1289 strlcpy(ministate.buf, "", sizeof(ministate.prompt));
1291 ministate.history = hist;
1292 ministate.hist_cur = NULL;
1293 ministate.hist_off = 0;
1297 exit_minibuffer(void)
1302 base_map = &global_map;
1303 current_map = &global_map;
1307 switch_to_tab(struct tab *tab)
1311 TAILQ_FOREACH(t, &tabshead, tabs) {
1312 t->flags &= ~TAB_CURRENT;
1315 tab->flags |= TAB_CURRENT;
1316 tab->flags &= ~TAB_URGENT;
1322 return tab_counter++;
1326 new_tab(const char *url)
1330 if ((tab = calloc(1, sizeof(*tab))) == NULL) {
1336 TAILQ_INIT(&tab->hist.head);
1338 TAILQ_INIT(&tab->buffer.head);
1340 tab->id = tab_new_id();
1343 if (TAILQ_EMPTY(&tabshead))
1344 TAILQ_INSERT_HEAD(&tabshead, tab, tabs);
1346 TAILQ_INSERT_TAIL(&tabshead, tab, tabs);
1348 load_url_in_tab(tab, url);
1353 session_new_tab_cb(const char *url)
1361 fprintf(stderr, "USAGE: %s [-hn] [-c config] [url]\n", getprogname());
1362 fprintf(stderr, "version: " PACKAGE " " VERSION "\n");
1366 ui_init(int argc, char * const *argv)
1368 char path[PATH_MAX];
1369 const char *url = NEW_TAB_URL;
1370 int ch, configtest = 0, fonf = 0;
1372 if (getenv("NO_COLOR") != NULL)
1375 strlcpy(path, getenv("HOME"), sizeof(path));
1376 strlcat(path, "/.telescope/config", sizeof(path));
1378 while ((ch = getopt(argc, argv, "c:hn")) != -1) {
1382 strlcpy(path, optarg, sizeof(path));
1398 /* setup keys before reading the config */
1399 TAILQ_INIT(&global_map.m);
1400 global_map.unhandled_input = global_key_unbound;
1402 TAILQ_INIT(&minibuffer_map.m);
1404 load_default_keys();
1407 parseconfig(path, fonf);
1416 setlocale(LC_ALL, "");
1418 TAILQ_INIT(&eecmd_history.head);
1419 TAILQ_INIT(&ir_history.head);
1420 TAILQ_INIT(&lu_history.head);
1422 ministate.line.type = LINE_TEXT;
1423 ministate.vline.parent = &ministate.line;
1424 ministate.buffer.current_line = &ministate.vline;
1426 /* initialize help window */
1427 TAILQ_INIT(&helpwin.head);
1429 base_map = &global_map;
1430 current_map = &global_map;
1434 if (enable_colors) {
1437 use_default_colors();
1442 config_apply_style();
1447 intrflush(stdscr, FALSE);
1449 if ((tabline = newwin(1, COLS, 0, 0)) == NULL)
1451 if ((body = newwin(LINES - 3, COLS, 1, 0)) == NULL)
1453 if ((modeline = newwin(1, COLS, LINES-2, 0)) == NULL)
1455 if ((minibuf = newwin(1, COLS, LINES-1, 0)) == NULL)
1457 if ((help = newwin(1, 1, 1, 0)) == NULL)
1460 body_lines = LINES-3;
1463 wbkgd(body, body_face.body);
1464 wbkgd(minibuf, minibuffer_face.background);
1469 scrollok(body, FALSE);
1471 /* non-blocking input */
1474 mvwprintw(body, 0, 0, "");
1477 * Dummy so libevent2 won't complain that no event_base is set
1478 * when checking event_pending for the first time.
1480 evtimer_set(&clminibufev, handle_clear_minibuf, NULL);
1481 evtimer_add(&clminibufev, &clminibufev_timer);
1482 evtimer_set(&resizeev, handle_resize_nodelay, NULL);
1483 evtimer_add(&resizeev, &resize_timer);
1485 event_set(&stdioev, 0, EV_READ | EV_PERSIST, dispatch_stdio, NULL);
1486 event_add(&stdioev, NULL);
1488 signal_set(&winchev, SIGWINCH, handle_resize, NULL);
1489 signal_add(&winchev, NULL);
1491 load_last_session(session_new_tab_cb);
1492 if (strcmp(url, NEW_TAB_URL) || TAILQ_EMPTY(&tabshead))
1499 ui_on_tab_loaded(struct tab *tab)
1501 stop_loading_anim(tab);
1502 message("Loaded %s", tab->hist_cur->h);
1513 ui_on_tab_refresh(struct tab *tab)
1515 wrap_page(&tab->buffer, body_cols);
1516 if (tab->flags & TAB_CURRENT) {
1517 restore_cursor(&tab->buffer);
1520 tab->flags |= TAB_URGENT;
1530 ui_toggle_side_window(void)
1532 side_window = !side_window;
1537 * ugly hack, but otherwise the window doesn't get updated
1538 * until I call handle_resize a second time (i.e. C-l). I
1539 * will be happy to know why something like this is needed.
1541 handle_resize_nodelay(0, 0, NULL);
1542 handle_resize_nodelay(0, 0, NULL);
1546 ui_schedule_redraw(void)
1548 handle_resize_nodelay(0, 0, NULL);
1552 ui_require_input(struct tab *tab, int hide)
1554 /* TODO: hard-switching to another tab is ugly */
1557 enter_minibuffer(ir_self_insert, ir_select, exit_minibuffer,
1559 strlcpy(ministate.prompt, "Input required: ",
1560 sizeof(ministate.prompt));
1565 ui_yornp(const char *prompt, void (*fn)(int, unsigned int),
1570 if (in_minibuffer) {
1577 enter_minibuffer(yornp_self_insert, yornp_self_insert,
1580 len = sizeof(ministate.prompt);
1581 strlcpy(ministate.prompt, prompt, len);
1582 strlcat(ministate.prompt, " (y or n) ", len);
1583 redraw_tab(current_tab());
1587 ui_read(const char *prompt, void (*fn)(const char*, unsigned int),
1597 enter_minibuffer(read_self_insert, read_select, read_abort,
1600 len = sizeof(ministate.prompt);
1601 strlcpy(ministate.prompt, prompt, len);
1602 strlcat(ministate.prompt, ": ", len);
1603 redraw_tab(current_tab());