names.c

   1 /* $OpenBSD$ */
   2
   3 /*
   4  * Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
   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 void     window_name_callback(unused int, unused short, void *);
  29
  30 void
  31 queue_window_name(struct window *w)
  32 {
  33         struct timeval  tv;
  34
  35         tv.tv_sec = 0;
  36         tv.tv_usec = NAME_INTERVAL * 1000L;
  37
  38         if (event_initialized(&w->name_timer))
  39                 evtimer_del(&w->name_timer);
  40         evtimer_set(&w->name_timer, window_name_callback, w);
  41         evtimer_add(&w->name_timer, &tv);
  42 }
  43
  44 void
  45 window_name_callback(unused int fd, unused short events, void *data)
  46 {
  47         struct window   *w = data;
  48         char            *name;
  49
  50         if (w->active == NULL)
  51                 return;
  52
  53         if (!options_get_number(&w->options, "automatic-rename")) {
  54                 if (event_initialized(&w->name_timer))
  55                         event_del(&w->name_timer);
  56                 return;
  57         }
  58         queue_window_name(w);
  59
  60         name = format_window_name(w);
  61         if (strcmp(name, w->name) != 0) {
  62                 window_set_name(w, name);
  63                 server_status_window(w);
  64         }
  65         free(name);
  66 }
  67
  68 char *
  69 default_window_name(struct window *w)
  70 {
  71         if (w->active->cmd != NULL && *w->active->cmd != '\0')
  72                 return (parse_window_name(w->active->cmd));
  73         return (parse_window_name(w->active->shell));
  74 }
  75
  76 char *
  77 format_window_name(struct window *w)
  78 {
  79         struct format_tree      *ft;
  80         char                    *fmt, *name;
  81
  82         ft = format_create();
  83         format_window(ft, w);
  84         format_window_pane(ft, w->active);
  85
  86         fmt = options_get_string(&w->options, "automatic-rename-format");
  87         name = format_expand(ft, fmt);
  88
  89         format_free(ft);
  90         return (name);
  91 }
  92
  93 char *
  94 parse_window_name(const char *in)
  95 {
  96         char    *copy, *name, *ptr;
  97
  98         name = copy = xstrdup(in);
  99         if (strncmp(name, "exec ", (sizeof "exec ") - 1) == 0)
 100                 name = name + (sizeof "exec ") - 1;
 101
 102         while (*name == ' ' || *name == '-')
 103                 name++;
 104         if ((ptr = strchr(name, ' ')) != NULL)
 105                 *ptr = '\0';
 106
 107         if (*name != '\0') {
 108                 ptr = name + strlen(name) - 1;
 109                 while (ptr > name && !isalnum((u_char)*ptr))
 110                         *ptr-- = '\0';
 111         }
 112
 113         if (*name == '/')
 114                 name = basename(name);
 115         name = xstrdup(name);
 116         free(copy);
 117         return (name);
 118 }