Add -d flag to display-panes to specify timeout, and make 0 mean no

timeout. From Laurens Post.

cmd-display-panes.c

@@ -37,8 +37,8 @@ const struct cmd_entry cmd_display_panes_entry = {
 	.name = "display-panes",
 	.alias = "displayp",
 
-	.args = { "t:", 0, 1 },
+	.args = { "d:t:", 0, 1 },
-	.usage = CMD_TARGET_CLIENT_USAGE,
+	.usage = "[-d duration] " CMD_TARGET_CLIENT_USAGE,
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_display_panes_exec
@@ -49,6 +49,9 @@ cmd_display_panes_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args	*args = self->args;
 	struct client	*c;
+	struct session	*s;
+	u_int		 delay;
+	char		*cause;
 
 	if ((c = cmd_find_client(item, args_get(args, 't'), 0)) == NULL)
 		return (CMD_RETURN_ERROR);
@@ -61,8 +64,18 @@ cmd_display_panes_exec(struct cmd *self, struct cmdq_item *item)
 		c->identify_callback_data = xstrdup(args->argv[0]);
 	else
 		c->identify_callback_data = xstrdup("select-pane -t '%%'");
+	s = c->session;
 
-	server_client_set_identify(c);
+	if (args_has(args, 'd')) {
+		delay = args_strtonum(args, 'd', 0, UINT_MAX, &cause);
+		if (cause != NULL) {
+			cmdq_error(item, "delay %s", cause);
+			free(cause);
+			return (CMD_RETURN_ERROR);
+		}
+	} else
+		delay = options_get_number(s->options, "display-panes-time");
+	server_client_set_identify(c, delay);
 
 	return (CMD_RETURN_NORMAL);
 }

server-client.c

@@ -74,19 +74,18 @@ server_client_callback_identify(__unused int fd, __unused short events,
 
 /* Set identify mode on client. */
 void
-server_client_set_identify(struct client *c)
+server_client_set_identify(struct client *c, u_int delay)
 {
 	struct timeval	tv;
-	int		delay;
 
-	delay = options_get_number(c->session->options, "display-panes-time");
 	tv.tv_sec = delay / 1000;
 	tv.tv_usec = (delay % 1000) * 1000L;
 
 	if (event_initialized(&c->identify_timer))
 		evtimer_del(&c->identify_timer);
 	evtimer_set(&c->identify_timer, server_client_callback_identify, c);
-	evtimer_add(&c->identify_timer, &tv);
+	if (delay != 0)
+		evtimer_add(&c->identify_timer, &tv);
 
 	c->flags |= CLIENT_IDENTIFY;
 	c->tty.flags |= (TTY_FREEZE|TTY_NOCURSOR);

tmux.1

@@ -1461,6 +1461,7 @@ specifies the format for each item in the tree.
 This command works only if at least one client is attached.
 .It Xo
 .Ic display-panes
+.Op Fl d Ar duration
 .Op Fl t Ar target-client
 .Op Ar template
 .Xc
@@ -1468,11 +1469,19 @@ This command works only if at least one client is attached.
 Display a visible indicator of each pane shown by
 .Ar target-client .
 See the
-.Ic display-panes-time ,
+.Ic display-panes-colour
-.Ic display-panes-colour ,
 and
 .Ic display-panes-active-colour
 session options.
+The indicator is closed when a key is pressed or
+.Ar duration
+milliseconds have passed.
+If
+.Fl d
+is not given,
+.Ic display-panes-time
+is used.
+A duration of zero means the indicator stays until a key is pressed.
 While the indicator is on screen, a pane may be chosen with the
 .Ql 0
 to

tmux.h

@@ -1870,7 +1870,7 @@ void	 server_add_accept(int);
 
 /* server-client.c */
 u_int	 server_client_how_many(void);
-void	 server_client_set_identify(struct client *);
+void	 server_client_set_identify(struct client *, u_int);
 void	 server_client_clear_identify(struct client *, struct window_pane *);
 void	 server_client_set_key_table(struct client *, const char *);
 const char *server_client_get_key_table(struct client *);