From cafed0f6f1d8bad7a12d255b8f7c575599644aba Mon Sep 17 00:00:00 2001
From: Rutherther <rutherther@proton.me>
Date: Sat, 27 Apr 2024 21:25:16 +0200
Subject: [PATCH] feat: access nth monitor

---
 config.def.h |  4 +++-
 dwl.c        | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 49 insertions(+), 1 deletion(-)

diff --git a/config.def.h b/config.def.h
index 22d2171..9c98a5a 100644
--- a/config.def.h
+++ b/config.def.h
@@ -113,7 +113,9 @@ static const enum libinput_config_tap_button_map button_map = LIBINPUT_CONFIG_TA
 	{ MODKEY,                    KEY,            view,            {.ui = 1 << TAG} }, \
 	{ MODKEY|WLR_MODIFIER_CTRL,  KEY,            toggleview,      {.ui = 1 << TAG} }, \
 	{ MODKEY|WLR_MODIFIER_SHIFT, SKEY,           tag,             {.ui = 1 << TAG} }, \
-	{ MODKEY|WLR_MODIFIER_CTRL|WLR_MODIFIER_SHIFT,SKEY,toggletag, {.ui = 1 << TAG} }
+	{ MODKEY|WLR_MODIFIER_CTRL|WLR_MODIFIER_SHIFT,SKEY,toggletag, {.ui = 1 << TAG} }, \
+	{ WLR_MODIFIER_ALT,          KEY,            focusnthmon,     {.ui = TAG} }, \
+	{ WLR_MODIFIER_ALT|WLR_MODIFIER_SHIFT, SKEY, tagnthmon,       {.ui = TAG} }
 
 /* helper for spawning shell commands in the pre dwm-5.0 fashion */
 #define SHCMD(cmd) { .v = (const char*[]){ "/bin/sh", "-c", cmd, NULL } }
diff --git a/dwl.c b/dwl.c
index 5bf995e..eea12c2 100644
--- a/dwl.c
+++ b/dwl.c
@@ -12,6 +12,7 @@
 #include <time.h>
 #include <unistd.h>
 #include <wayland-server-core.h>
+#include <wayland-util.h>
 #include <wlr/backend.h>
 #include <wlr/backend/libinput.h>
 #include <wlr/render/allocator.h>
@@ -285,8 +286,10 @@ static void destroysessionlock(struct wl_listener *listener, void *data);
 static void destroysessionmgr(struct wl_listener *listener, void *data);
 static void destroykeyboardgroup(struct wl_listener *listener, void *data);
 static Monitor *dirtomon(enum wlr_direction dir);
+static Monitor *numtomon(int num);
 static void focusclient(Client *c, int lift);
 static void focusmon(const Arg *arg);
+static void focusnthmon(const Arg *arg);
 static void focusstack(const Arg *arg);
 static Client *focustop(Monitor *m);
 static void fullscreennotify(struct wl_listener *listener, void *data);
@@ -337,6 +340,7 @@ static void spawn(const Arg *arg);
 static void startdrag(struct wl_listener *listener, void *data);
 static void tag(const Arg *arg);
 static void tagmon(const Arg *arg);
+static void tagnthmon(const Arg *arg);
 static void tile(Monitor *m);
 static void togglefloating(const Arg *arg);
 static void togglefullscreen(const Arg *arg);
@@ -1335,6 +1339,25 @@ dirtomon(enum wlr_direction dir)
 	return selmon;
 }
 
+Monitor *
+numtomon(int num)
+{
+	Monitor *m = NULL;
+	int found = 0;
+	int i = 0;
+
+	wl_list_for_each(m, &mons, link) {
+		if (!m->wlr_output->enabled)
+			i--;
+		else if (i == num) {
+			found = true;
+			break;
+		}
+		i++;
+	}
+	return found ? m : NULL;
+}
+
 void
 focusclient(Client *c, int lift)
 {
@@ -1422,6 +1445,16 @@ focusmon(const Arg *arg)
 	focusclient(focustop(selmon), 1);
 }
 
+void
+focusnthmon(const Arg *arg)
+{
+	Monitor *m = numtomon(arg->i);
+	if (!m || m == selmon)
+		return;
+	selmon = m;
+	focusclient(focustop(selmon), 1);
+}
+
 void
 focusstack(const Arg *arg)
 {
@@ -2687,6 +2720,19 @@ tagmon(const Arg *arg)
 		setmon(sel, dirtomon(arg->i), 0);
 }
 
+void
+tagnthmon(const Arg *arg)
+{
+	Client *sel = focustop(selmon);
+	Monitor *m = numtomon(arg->i);
+	if (!m || !sel)
+		return;
+	setmon(sel, m, 0);
+
+	arrange(selmon);
+	arrange(m);
+}
+
 void
 tile(Monitor *m)
 {
-- 
2.48.1