From 9ee76adc7c6567650e7b34273f953fed03191c05 Mon Sep 17 00:00:00 2001
From: LaKato <lakato@noreply.codeberg.org>
Date: Sat, 8 Mar 2025 12:14:41 -0500
Subject: [PATCH] Update for v0.7

Additional changes:
- incxkbrules now uses its argument
- A new setxkbrules function has been added
- Keyboard groups are no longer looped over because only one is created
---
 config.def.h | 17 +++++++++++------
 dwl.c        | 44 +++++++++++++++++++++++++++++++++-----------
 2 files changed, 44 insertions(+), 17 deletions(-)

diff --git a/config.def.h b/config.def.h
index 22d2171..b3b4699 100644
--- a/config.def.h
+++ b/config.def.h
@@ -52,12 +52,15 @@ 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[] = {
+	{
+		.layout = "us",
+	},
+	/*{
+		.layout = "us",
+		.variant = "dvp",
+		.options = "compose:102,numpad:shift3,kpdl:semi,keypad:atm,caps:super"
+	}*/
 };
 
 static const int repeat_rate = 25;
@@ -148,6 +151,8 @@ 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|WLR_MODIFIER_SHIFT, XKB_KEY_A,          incxkbrules,    {.i = +1} },
+	/*{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_E,          setxkbrules,    {.i = +1} },*/
 	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 a2711f6..a2413e9 100644
--- a/dwl.c
+++ b/dwl.c
@@ -249,6 +249,7 @@ static void arrange(Monitor *m);
 static void arrangelayer(Monitor *m, struct wl_list *list,
 		struct wlr_box *usable_area, int exclusive);
 static void arrangelayers(Monitor *m);
+static void assignkeymap(struct wlr_keyboard *keyboard);
 static void axisnotify(struct wl_listener *listener, void *data);
 static void buttonpress(struct wl_listener *listener, void *data);
 static void chvt(const Arg *arg);
@@ -293,6 +294,7 @@ static void fullscreennotify(struct wl_listener *listener, void *data);
 static void gpureset(struct wl_listener *listener, void *data);
 static void handlesig(int signo);
 static void incnmaster(const Arg *arg);
+static void incxkbrules(const Arg *arg);
 static void inputdevice(struct wl_listener *listener, void *data);
 static int keybinding(uint32_t mods, xkb_keysym_t sym);
 static void keypress(struct wl_listener *listener, void *data);
@@ -333,6 +335,7 @@ static void setmon(Client *c, Monitor *m, uint32_t newtags);
 static void setpsel(struct wl_listener *listener, void *data);
 static void setsel(struct wl_listener *listener, void *data);
 static void setup(void);
+static void setxkbrules(const Arg *arg);
 static void spawn(const Arg *arg);
 static void startdrag(struct wl_listener *listener, void *data);
 static void tag(const Arg *arg);
@@ -404,6 +407,7 @@ static struct wl_listener lock_listener = {.notify = locksession};
 
 static struct wlr_seat *seat;
 static KeyboardGroup *kb_group;
+static unsigned int kblayout = 0;
 static unsigned int cursor_mode;
 static Client *grabc;
 static int grabcx, grabcy; /* client-relative */
@@ -580,6 +584,20 @@ arrangelayers(Monitor *m)
 	}
 }
 
+void
+assignkeymap(struct wlr_keyboard *keyboard) {
+	struct xkb_context *context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
+	struct xkb_keymap *keymap = xkb_keymap_new_from_names(context, &xkb_rules[kblayout],
+					XKB_KEYMAP_COMPILE_NO_FLAGS);
+
+	if (!keymap)
+		die("failed to compile keymap");
+
+	wlr_keyboard_set_keymap(keyboard, keymap);
+	xkb_keymap_unref(keymap);
+	xkb_context_unref(context);
+}
+
 void
 axisnotify(struct wl_listener *listener, void *data)
 {
@@ -885,21 +903,11 @@ KeyboardGroup *
 createkeyboardgroup(void)
 {
 	KeyboardGroup *group = ecalloc(1, sizeof(*group));
-	struct xkb_context *context;
-	struct xkb_keymap *keymap;
 
 	group->wlr_group = wlr_keyboard_group_create();
 	group->wlr_group->data = group;
 
-	/* 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,
-				XKB_KEYMAP_COMPILE_NO_FLAGS)))
-		die("failed to compile keymap");
-
-	wlr_keyboard_set_keymap(&group->wlr_group->keyboard, keymap);
-	xkb_keymap_unref(keymap);
-	xkb_context_unref(context);
+	assignkeymap(&group->wlr_group->keyboard);
 
 	wlr_keyboard_set_repeat_info(&group->wlr_group->keyboard, repeat_rate, repeat_delay);
 
@@ -1524,6 +1532,13 @@ incnmaster(const Arg *arg)
 	arrange(selmon);
 }
 
+void
+incxkbrules(const Arg *arg)
+{
+	kblayout = (kblayout + arg->i) % LENGTH(xkb_rules);
+	assignkeymap(&kb_group->wlr_group->keyboard);
+}
+
 void
 inputdevice(struct wl_listener *listener, void *data)
 {
@@ -2645,6 +2660,13 @@ setup(void)
 #endif
 }
 
+void
+setxkbrules(const Arg *arg)
+{
+	kblayout = arg->i;
+	assignkeymap(&kb_group->wlr_group->keyboard);
+}
+
 void
 spawn(const Arg *arg)
 {
-- 
2.48.1