1/* $OpenBSD$ */
2
3/*
4 * Copyright (c) 2009 Nicholas Marriott <[email protected]>
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
28static void name_time_callback(int, short, void *);
29static int name_time_expired(struct window *, struct timeval *);
30
31static char *format_window_name(struct window *);
32
33static void
34name_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
42static int
43name_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
53void
54check_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_status_window(w);
100 } else
101 log_debug("@%u name not changed (still %s)", w->id, w->name);
102
103 free(name);
104}
105
106char *
107default_window_name(struct window *w)
108{
109 char *cmd, *s;
110
111 cmd = cmd_stringify_argv(w->active->argc, w->active->argv);
112 if (cmd != NULL && *cmd != '\0')
113 s = parse_window_name(cmd);
114 else
115 s = parse_window_name(w->active->shell);
116 free(cmd);
117 return (s);
118}
119
120static char *
121format_window_name(struct window *w)
122{
123 struct format_tree *ft;
124 const char *fmt;
125 char *name;
126
127 ft = format_create(NULL, NULL, FORMAT_WINDOW|w->id, 0);
128 format_defaults_window(ft, w);
129 format_defaults_pane(ft, w->active);
130
131 fmt = options_get_string(w->options, "automatic-rename-format");
132 name = format_expand(ft, fmt);
133
134 format_free(ft);
135 return (name);
136}
137
138char *
139parse_window_name(const char *in)
140{
141 char *copy, *name, *ptr;
142
143 name = copy = xstrdup(in);
144 if (strncmp(name, "exec ", (sizeof "exec ") - 1) == 0)
145 name = name + (sizeof "exec ") - 1;
146
147 while (*name == ' ' || *name == '-')
148 name++;
149 if ((ptr = strchr(name, ' ')) != NULL)
150 *ptr = '\0';
151
152 if (*name != '\0') {
153 ptr = name + strlen(name) - 1;
154 while (ptr > name &&
155 !isalnum((u_char)*ptr) &&
156 !ispunct((u_char)*ptr))
157 *ptr-- = '\0';
158 }
159
160 if (*name == '/')
161 name = basename(name);
162 name = xstrdup(name);
163 free(copy);
164 return (name);
165}
166