From 406ad50dd681765e3f0cce85bcf5e1f8268c9149 Mon Sep 17 00:00:00 2001
From: awy <awy@tutamail.com>
Date: Sun, 25 Aug 2024 16:32:55 +0300
Subject: xkb-rules-switcher patch

---
 README.md    |  3 ++-
 config.def.h | 17 +++++++++++------
 dwl.c        | 19 ++++++++++++++++++-
 3 files changed, 31 insertions(+), 8 deletions(-)

diff --git a/README.md b/README.md
index a19f062..d422666 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,10 @@
 # dwl - dwm for Wayland
 
-v0.7
+v0.7    \
 patches applied:
 
 [bar](https://codeberg.org/dwl/dwl-patches/src/branch/main/patches/bar) \
 [hide vacant tags](https://codeberg.org/dwl/dwl-patches/src/branch/main/patches/hide_vacant_tags)   \
 [vanitygaps](https://codeberg.org/dwl/dwl-patches/src/branch/main/patches/vanitygaps)   \
 [swallow](https://codeberg.org/dwl/dwl-patches/src/branch/main/patches/swallow) \
+[xkb-rules-switcher](https://codeberg.org/wochap/dwl/src/branch/v0.6-b/xkb-rules-switcher/xkb-rules-switcher.patch)
diff --git a/config.def.h b/config.def.h
index bb95669..2258fdf 100644
--- a/config.def.h
+++ b/config.def.h
@@ -65,12 +65,16 @@ static const MonitorRule monrules[] = {
 };
 
 /* keyboard */
-static const struct xkb_rule_names xkb_rules = {
-	/* can specify fields: rules, model, layout, variant, options */
-	/* example:
-	.options = "ctrl:nocaps",
-	*/
-	.options = NULL,
+static const struct xkb_rule_names xkb_rules[] = {
+	{
+		/* can specify fields: rules, model, layout, variant, options */
+		.layout = "us",
+		.options = NULL,
+	},
+	{
+		.layout = "ru",
+		.options = NULL,
+	},
 };
 
 static const int repeat_rate = 25;
@@ -178,6 +182,7 @@ static const Key keys[] = {
 	{ MODKEY,                    XKB_KEY_period,     focusmon,       {.i = WLR_DIRECTION_RIGHT} },
 	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_less,       tagmon,         {.i = WLR_DIRECTION_LEFT} },
 	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_greater,    tagmon,         {.i = WLR_DIRECTION_RIGHT} },
+	{ MODKEY,                    XKB_KEY_w,          switchxkbrule,  {0} },
 	TAGKEYS(          XKB_KEY_1, XKB_KEY_exclam,                     0),
 	TAGKEYS(          XKB_KEY_2, XKB_KEY_at,                         1),
 	TAGKEYS(          XKB_KEY_3, XKB_KEY_numbersign,                 2),
diff --git a/dwl.c b/dwl.c
index 09d4516..aabb4a4 100644
--- a/dwl.c
+++ b/dwl.c
@@ -385,6 +385,7 @@ static void setsel(struct wl_listener *listener, void *data);
 static void setup(void);
 static void spawn(const Arg *arg);
 static void startdrag(struct wl_listener *listener, void *data);
+static void switchxkbrule(const Arg *arg);
 static int statusin(int fd, unsigned int mask, void *data);
 static void tag(const Arg *arg);
 static void tagmon(const Arg *arg);
@@ -463,6 +464,7 @@ static struct wl_listener lock_listener = {.notify = locksession};
 static struct wlr_seat *seat;
 static KeyboardGroup *kb_group;
 static unsigned int cursor_mode;
+static unsigned int xkb_rule_index = 0;
 static Client *grabc;
 static int grabcx, grabcy; /* client-relative */
 
@@ -1104,7 +1106,7 @@ createkeyboardgroup(void)
 
 	/* Prepare an XKB keymap and assign it to the keyboard group. */
 	context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
-	if (!(keymap = xkb_keymap_new_from_names(context, &xkb_rules,
+	if (!(keymap = xkb_keymap_new_from_names(context, &xkb_rules[xkb_rule_index],
 				XKB_KEYMAP_COMPILE_NO_FLAGS)))
 		die("failed to compile keymap");
 
@@ -3093,6 +3095,21 @@ statusin(int fd, unsigned int mask, void *data)
 	return 0;
 }
 
+void
+switchxkbrule(const Arg *arg)
+{
+	struct xkb_context *context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
+	struct xkb_keymap *keymap;
+
+	xkb_rule_index = (xkb_rule_index + 1) % LENGTH(xkb_rules);
+	if (!(keymap = xkb_keymap_new_from_names(context, &xkb_rules[xkb_rule_index],
+			XKB_KEYMAP_COMPILE_NO_FLAGS)))
+		die("failed to compile keymap");
+	wlr_keyboard_set_keymap(&kb_group->wlr_group->keyboard, keymap);
+	xkb_keymap_unref(keymap);
+	xkb_context_unref(context);
+}
+
 void
 tag(const Arg *arg)
 {
-- 
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