Home | History | Annotate | Line # | Download | only in dist 
      1 /* $OpenBSD$ */
      2 
      3 /*
      4  * Copyright (c) 2009 Nicholas Marriott <nicholas.marriott (at) gmail.com>
      5  *
      6  * Permission to use, copy, modify, and distribute this software for any
      7  * purpose with or without fee is hereby granted, provided that the above
      8  * copyright notice and this permission notice appear in all copies.
      9  *
     10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
     11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     14  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
     15  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
     16  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     17  */
     18 
     19 #include <sys/types.h>
     20 
     21 #include <ctype.h>
     22 #include <libgen.h>
     23 #include <stdlib.h>
     24 #include <string.h>
     25 
     26 #include "tmux.h"
     27 
     28 static void	 name_time_callback(int, short, void *);
     29 static int	 name_time_expired(struct window *, struct timeval *);
     30 
     31 static char	*format_window_name(struct window *);
     32 
     33 static void
     34 name_time_callback(__unused int fd, __unused short events, void *arg)
     35 {
     36 	struct window	*w = arg;
     37 
     38 	/* The event loop will call check_window_name for us on the way out. */
     39 	log_debug("@%u name timer expired", w->id);
     40 }
     41 
     42 static int
     43 name_time_expired(struct window *w, struct timeval *tv)
     44 {
     45 	struct timeval	offset;
     46 
     47 	timersub(tv, &w->name_time, &offset);
     48 	if (offset.tv_sec != 0 || offset.tv_usec > NAME_INTERVAL)
     49 		return (0);
     50 	return (NAME_INTERVAL - offset.tv_usec);
     51 }
     52 
     53 void
     54 check_window_name(struct window *w)
     55 {
     56 	struct timeval	 tv, next;
     57 	char		*name;
     58 	int		 left;
     59 
     60 	if (w->active == NULL)
     61 		return;
     62 
     63 	if (!options_get_number(w->options, "automatic-rename"))
     64 		return;
     65 
     66 	if (~w->active->flags & PANE_CHANGED) {
     67 		log_debug("@%u active pane not changed", w->id);
     68 		return;
     69 	}
     70 	log_debug("@%u active pane changed", w->id);
     71 
     72 	gettimeofday(&tv, NULL);
     73 	left = name_time_expired(w, &tv);
     74 	if (left != 0) {
     75 		if (!event_initialized(&w->name_event))
     76 			evtimer_set(&w->name_event, name_time_callback, w);
     77 		if (!evtimer_pending(&w->name_event, NULL)) {
     78 			log_debug("@%u name timer queued (%d left)", w->id,
     79 			    left);
     80 			timerclear(&next);
     81 			next.tv_usec = left;
     82 			event_add(&w->name_event, &next);
     83 		} else {
     84 			log_debug("@%u name timer already queued (%d left)",
     85 			    w->id, left);
     86 		}
     87 		return;
     88 	}
     89 	memcpy(&w->name_time, &tv, sizeof w->name_time);
     90 	if (event_initialized(&w->name_event))
     91 		evtimer_del(&w->name_event);
     92 
     93 	w->active->flags &= ~PANE_CHANGED;
     94 
     95 	name = format_window_name(w);
     96 	if (strcmp(name, w->name) != 0) {
     97 		log_debug("@%u new name %s (was %s)", w->id, name, w->name);
     98 		window_set_name(w, name);
     99 		server_redraw_window_borders(w);
    100 		server_status_window(w);
    101 	} else
    102 		log_debug("@%u name not changed (still %s)", w->id, w->name);
    103 
    104 	free(name);
    105 }
    106 
    107 char *
    108 default_window_name(struct window *w)
    109 {
    110 	char	*cmd, *s;
    111 
    112 	if (w->active == NULL)
    113 		return (xstrdup(""));
    114 	cmd = cmd_stringify_argv(w->active->argc, w->active->argv);
    115 	if (cmd != NULL && *cmd != '\0')
    116 		s = parse_window_name(cmd);
    117 	else
    118 		s = parse_window_name(w->active->shell);
    119 	free(cmd);
    120 	return (s);
    121 }
    122 
    123 static char *
    124 format_window_name(struct window *w)
    125 {
    126 	struct format_tree	*ft;
    127 	const char		*fmt;
    128 	char			*name;
    129 
    130 	ft = format_create(NULL, NULL, FORMAT_WINDOW|w->id, 0);
    131 	format_defaults_window(ft, w);
    132 	format_defaults_pane(ft, w->active);
    133 
    134 	fmt = options_get_string(w->options, "automatic-rename-format");
    135 	name = format_expand(ft, fmt);
    136 
    137 	format_free(ft);
    138 	return (name);
    139 }
    140 
    141 char *
    142 parse_window_name(const char *in)
    143 {
    144 	char	*copy, *name, *ptr;
    145 
    146 	name = copy = xstrdup(in);
    147 	if (*name == '"')
    148 		name++;
    149 	name[strcspn(name, "\"")] = '\0';
    150 
    151 	if (strncmp(name, "exec ", (sizeof "exec ") - 1) == 0)
    152 		name = name + (sizeof "exec ") - 1;
    153 
    154 	while (*name == ' ' || *name == '-')
    155 		name++;
    156 	if ((ptr = strchr(name, ' ')) != NULL)
    157 		*ptr = '\0';
    158 
    159 	if (*name != '\0') {
    160 		ptr = name + strlen(name) - 1;
    161 		while (ptr > name &&
    162 		    !isalnum((u_char)*ptr) &&
    163 		    !ispunct((u_char)*ptr))
    164 			*ptr-- = '\0';
    165 	}
    166 
    167 	if (*name == '/')
    168 		name = basename(name);
    169 	name = xstrdup(name);
    170 	free(copy);
    171 	return (name);
    172 }
    173