From 88e9079870a770c39dd8f96302602a792db9a90a Mon Sep 17 00:00:00 2001
From: Nicholas Marriott <nicm@openbsd.org>
Date: Tue, 16 Aug 2011 10:00:52 +0000
Subject: [PATCH] Add a -r flag to switch-client to toggle the client read-only
 flag. From Johan Commelin.

---
 cmd-choose-client.c |  6 ++++--
 cmd-list-clients.c  |  7 ++++---
 cmd-switch-client.c | 16 +++++++++++++---
 tmux.1              | 10 ++++++++--
 4 files changed, 29 insertions(+), 10 deletions(-)

diff --git a/cmd-choose-client.c b/cmd-choose-client.c
index ac766ab5..6ad1b495 100644
--- a/cmd-choose-client.c
+++ b/cmd-choose-client.c
@@ -76,9 +76,11 @@ cmd_choose_client_exec(struct cmd *self, struct cmd_ctx *ctx)
 		idx++;
 
 		window_choose_add(wl->window->active, i,
-		    "%s: %s [%ux%u %s]%s", c->tty.path,
+		    "%s: %s [%ux%u %s]%s%s", c->tty.path,
 		    c->session->name, c->tty.sx, c->tty.sy,
-		    c->tty.termname, c->tty.flags & TTY_UTF8 ? " (utf8)" : "");
+		    c->tty.termname,
+		    c->tty.flags & TTY_UTF8 ? " (utf8)" : "",
+		    c->flags & CLIENT_READONLY ? " (ro)" : "");
 	}
 
 	cdata = xmalloc(sizeof *cdata);
diff --git a/cmd-list-clients.c b/cmd-list-clients.c
index 2a4728b8..c24ec660 100644
--- a/cmd-list-clients.c
+++ b/cmd-list-clients.c
@@ -33,7 +33,7 @@ const struct cmd_entry cmd_list_clients_entry = {
 	"list-clients", "lsc",
 	"t:", 0, 0,
 	CMD_TARGET_SESSION_USAGE,
-	0,
+	CMD_READONLY,
 	NULL,
 	NULL,
 	cmd_list_clients_exec
@@ -68,9 +68,10 @@ cmd_list_clients_exec(struct cmd *self, struct cmd_ctx *ctx)
 
 		if (s != NULL && s != c->session)
 			continue;
-		ctx->print(ctx, "%s: %s [%ux%u %s]%s", c->tty.path,
+		ctx->print(ctx, "%s: %s [%ux%u %s]%s%s", c->tty.path,
 		    c->session->name, c->tty.sx, c->tty.sy,
-		    c->tty.termname, s_utf8);
+		    c->tty.termname, s_utf8,
+		    c->flags & CLIENT_READONLY ? " (ro)" : "");
 	}
 
 	return (0);
diff --git a/cmd-switch-client.c b/cmd-switch-client.c
index 25a57965..ab940dc4 100644
--- a/cmd-switch-client.c
+++ b/cmd-switch-client.c
@@ -32,9 +32,9 @@ int	cmd_switch_client_exec(struct cmd *, struct cmd_ctx *);
 
 const struct cmd_entry cmd_switch_client_entry = {
 	"switch-client", "switchc",
-	"lc:npt:", 0, 0,
-	"[-lnp] [-c target-client] [-t target-session]",
-	0,
+	"lc:npt:r", 0, 0,
+	"[-lnpr] [-c target-client] [-t target-session]",
+	CMD_READONLY,
 	cmd_switch_client_key_binding,
 	NULL,
 	cmd_switch_client_exec
@@ -67,6 +67,16 @@ cmd_switch_client_exec(struct cmd *self, struct cmd_ctx *ctx)
 	if ((c = cmd_find_client(ctx, args_get(args, 'c'))) == NULL)
 		return (-1);
 
+	if (args_has(args, 'r')) {
+		if (c->flags & CLIENT_READONLY) {
+			c->flags &= ~CLIENT_READONLY;
+			ctx->info(ctx, "made client writable");
+		} else {
+			c->flags |= CLIENT_READONLY;
+			ctx->info(ctx, "made client read-only");
+		}
+	}
+
 	s = NULL;
 	if (args_has(args, 'n')) {
 		if ((s = session_next_session(c->session)) == NULL) {
diff --git a/tmux.1 b/tmux.1
index 2f1bd90e..8b7639ae 100644
--- a/tmux.1
+++ b/tmux.1
@@ -558,7 +558,9 @@ is specified, any other clients attached to the session are detached.
 .Fl r
 signifies the client is read-only (only keys bound to the
 .Ic detach-client
-command have any effect)
+or
+.Ic switch-client
+commands have any effect)
 .Pp
 If no server is started,
 .Ic attach-session
@@ -714,7 +716,7 @@ Suspend a client by sending
 .Dv SIGTSTP
 (tty stop).
 .It Xo Ic switch-client
-.Op Fl lnp
+.Op Fl lnpr
 .Op Fl c Ar target-client
 .Op Fl t Ar target-session
 .Xc
@@ -730,6 +732,10 @@ or
 .Fl p
 is used, the client is moved to the last, next or previous session
 respectively.
+.Fl r
+toggles whether a client is read-only (see the
+.Ic attach-session
+command).
 .El
 .Sh WINDOWS AND PANES
 A