xref: /netbsd-src/external/bsd/tmux/dist/cmd-switch-client.c (revision 946379e7b37692fc43f68eb0d1c10daa0a7f3b6c)
1 /* $OpenBSD$ */
2 
3 /*
4  * Copyright (c) 2007 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 <stdlib.h>
22 #include <string.h>
23 
24 #include "tmux.h"
25 
26 /*
27  * Switch client to a different session.
28  */
29 
30 enum cmd_retval	 cmd_switch_client_exec(struct cmd *, struct cmd_q *);
31 
32 const struct cmd_entry cmd_switch_client_entry = {
33 	"switch-client", "switchc",
34 	"lc:Enpt:rT:", 0, 0,
35 	"[-Elnpr] [-c target-client] [-t target-session] [-T key-table]",
36 	CMD_READONLY,
37 	cmd_switch_client_exec
38 };
39 
40 enum cmd_retval
41 cmd_switch_client_exec(struct cmd *self, struct cmd_q *cmdq)
42 {
43 	struct args		*args = self->args;
44 	struct client		*c;
45 	struct session		*s = NULL;
46 	struct winlink		*wl = NULL;
47 	struct window 		*w = NULL;
48 	struct window_pane	*wp = NULL;
49 	const char		*tflag, *tablename, *update;
50 	struct key_table	*table;
51 
52 	if ((c = cmd_find_client(cmdq, args_get(args, 'c'), 0)) == NULL)
53 		return (CMD_RETURN_ERROR);
54 
55 	if (args_has(args, 'r')) {
56 		if (c->flags & CLIENT_READONLY)
57 			c->flags &= ~CLIENT_READONLY;
58 		else
59 			c->flags |= CLIENT_READONLY;
60 	}
61 
62 	tablename = args_get(args, 'T');
63 	if (tablename != NULL) {
64 		table = key_bindings_get_table(tablename, 0);
65 		if (table == NULL) {
66 			cmdq_error(cmdq, "table %s doesn't exist", tablename);
67 			return (CMD_RETURN_ERROR);
68 		}
69 		table->references++;
70 		key_bindings_unref_table(c->keytable);
71 		c->keytable = table;
72 	}
73 
74 	tflag = args_get(args, 't');
75 	if (args_has(args, 'n')) {
76 		if ((s = session_next_session(c->session)) == NULL) {
77 			cmdq_error(cmdq, "can't find next session");
78 			return (CMD_RETURN_ERROR);
79 		}
80 	} else if (args_has(args, 'p')) {
81 		if ((s = session_previous_session(c->session)) == NULL) {
82 			cmdq_error(cmdq, "can't find previous session");
83 			return (CMD_RETURN_ERROR);
84 		}
85 	} else if (args_has(args, 'l')) {
86 		if (c->last_session != NULL && session_alive(c->last_session))
87 			s = c->last_session;
88 		if (s == NULL) {
89 			cmdq_error(cmdq, "can't find last session");
90 			return (CMD_RETURN_ERROR);
91 		}
92 	} else {
93 		if (tflag == NULL) {
94 			if ((s = cmd_find_session(cmdq, tflag, 1)) == NULL)
95 				return (CMD_RETURN_ERROR);
96 		} else if (tflag[strcspn(tflag, ":.")] != '\0') {
97 			if ((wl = cmd_find_pane(cmdq, tflag, &s, &wp)) == NULL)
98 				return (CMD_RETURN_ERROR);
99 		} else {
100 			if ((s = cmd_find_session(cmdq, tflag, 1)) == NULL)
101 				return (CMD_RETURN_ERROR);
102 			w = window_find_by_id_str(tflag);
103 			if (w == NULL) {
104 				wp = window_pane_find_by_id_str(tflag);
105 				if (wp != NULL)
106 					w = wp->window;
107 			}
108 			if (w != NULL)
109 				wl = winlink_find_by_window(&s->windows, w);
110 		}
111 
112 		if (cmdq->client == NULL)
113 			return (CMD_RETURN_NORMAL);
114 
115 		if (wl != NULL) {
116 			if (wp != NULL)
117 				window_set_active_pane(wp->window, wp);
118 			session_set_current(s, wl);
119 		}
120 	}
121 
122 	if (c != NULL && !args_has(args, 'E')) {
123 		update = options_get_string(&s->options, "update-environment");
124 		environ_update(update, &c->environ, &s->environ);
125 	}
126 
127 	if (c->session != NULL && c->session != s)
128 		c->last_session = c->session;
129 	c->session = s;
130 	status_timer_start(c);
131 	session_update_activity(s, NULL);
132 	gettimeofday(&s->last_attached_time, NULL);
133 
134 	recalculate_sizes();
135 	server_check_unattached();
136 	server_redraw_client(c);
137 	s->curw->flags &= ~WINLINK_ALERTFLAGS;
138 
139 	return (CMD_RETURN_NORMAL);
140 }
141