From 94bc8c251c118c2d432fe06a98d7a57b1fbedb4f Mon Sep 17 00:00:00 2001
From: Přemysl Eric Janouch <p@janouch.name>
Date: Thu, 8 Aug 2024 14:57:45 +0200
Subject: wmstatus: improve Sway forwards of xkb-lock-group

---
 wmstatus.c            | 66 +++++++++++++++++++++++++++++++++------------------
 wmstatus.conf.example |  8 +++----
 2 files changed, 47 insertions(+), 27 deletions(-)

diff --git a/wmstatus.c b/wmstatus.c
index e7a8654..697f623 100644
--- a/wmstatus.c
+++ b/wmstatus.c
@@ -2581,7 +2581,7 @@ action_xkb_lock_group (struct app_context *ctx, const struct strv *args)
 		return;
 	}
 
-	long group = strtol (args->vector[0], NULL, 10) - 1;
+	long group = strtol (args->vector[0], NULL, 10);
 	if (group < XkbGroup1Index || group > XkbGroup4Index)
 		print_warning ("invalid XKB group index: %s", args->vector[0]);
 	else
@@ -3039,6 +3039,30 @@ sway_append_command_argument (struct str *out, const char *word)
 	str_append_c (out, '\'');
 }
 
+static char *
+sway_shell_command_for_action (const struct strv *args)
+{
+	// The i3/Sway quoting is properly fucked up,
+	// and its exec command forwards to `sh -c`.
+	struct str shell_command = str_make ();
+	if (strcmp (args->vector[0], "exec"))
+	{
+		// argv[0] would need realpath() applied on it.
+		shell_quote (PROGRAM_NAME, &shell_command);
+		str_append (&shell_command, " -- ");
+		shell_quote (args->vector[0], &shell_command);
+		str_append_c (&shell_command, ' ');
+	}
+	for (size_t i = 1; i < args->len; i++)
+	{
+		shell_quote (args->vector[i], &shell_command);
+		str_append_c (&shell_command, ' ');
+	}
+	if (shell_command.len)
+		shell_command.str[--shell_command.len] = 0;
+	return str_steal (&shell_command);
+}
+
 static const char *
 sway_bindsym (const char *combination, const char *action)
 {
@@ -3063,25 +3087,6 @@ sway_bindsym (const char *combination, const char *action)
 		goto out;
 	}
 
-	// The i3/Sway quoting is properly fucked up,
-	// and its exec command forwards to `sh -c`.
-	struct str shell_command = str_make ();
-	if (strcmp (handler.name, "exec"))
-	{
-		// argv[0] would need realpath() applied on it.
-		shell_quote (PROGRAM_NAME, &shell_command);
-		str_append (&shell_command, " -- ");
-		shell_quote (handler.name, &shell_command);
-		str_append_c (&shell_command, ' ');
-	}
-	for (size_t i = 1; i < args.len; i++)
-	{
-		shell_quote (args.vector[i], &shell_command);
-		str_append_c (&shell_command, ' ');
-	}
-	if (shell_command.len)
-		shell_command.str[--shell_command.len] = 0;
-
 	// This command name may not be quoted.
 	// Note that i3-msg doesn't accept bindsym at all, only swaymsg does.
 	struct str sway_command = str_make ();
@@ -3089,9 +3094,24 @@ sway_bindsym (const char *combination, const char *action)
 	char *recombined = strv_join (&keys, "+");
 	sway_append_command_argument (&sway_command, recombined);
 	free (recombined);
-	sway_append_command_argument (&sway_command, "exec");
-	sway_append_command_argument (&sway_command, shell_command.str);
-	str_free (&shell_command);
+
+	if (handler.handler == action_xkb_lock_group)
+	{
+		// This should also switch the XWayland layout,
+		// though it has been observed to not take effect immediately.
+		sway_append_command_argument (&sway_command, "input");
+		sway_append_command_argument (&sway_command, "type:keyboard");
+		sway_append_command_argument (&sway_command, "xkb_switch_layout");
+		for (size_t i = 1; i < args.len; i++)
+			sway_append_command_argument (&sway_command, args.vector[i]);
+	}
+	else
+	{
+		sway_append_command_argument (&sway_command, "exec");
+		char *shell_command = sway_shell_command_for_action (&args);
+		sway_append_command_argument (&sway_command, shell_command);
+		free (shell_command);
+	}
 
 	struct strv argv = strv_make ();
 	strv_append (&argv, "swaymsg");
diff --git a/wmstatus.conf.example b/wmstatus.conf.example
index 705f83d..90b472f 100644
--- a/wmstatus.conf.example
+++ b/wmstatus.conf.example
@@ -16,10 +16,10 @@ keys = {
 	"XF86AudioPrev"                = "mpd previous"
 	"XF86AudioNext"                = "mpd next"
 
-	"Mod4 F1"                      = "xkb-lock-group 1"
-	"Mod4 F2"                      = "xkb-lock-group 2"
-	"Mod4 F3"                      = "xkb-lock-group 3"
-	"Mod4 F4"                      = "xkb-lock-group 4"
+	"Mod4 F1"                      = "xkb-lock-group 0"
+	"Mod4 F2"                      = "xkb-lock-group 1"
+	"Mod4 F3"                      = "xkb-lock-group 2"
+	"Mod4 F4"                      = "xkb-lock-group 3"
 
 	"Mod4 Control       F1"        = "exec input-switch vga 1"
 	"Mod4 Control Shift F1"        = "exec input-switch vga 2"
-- 
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