From 36c4e246ad47333f2b8a82610ba2adebeb2043b2 Mon Sep 17 00:00:00 2001
From: Jack Bird <jack.bird@durham.ac.uk>
Date: Thu, 29 Jul 2021 21:39:33 +0100
Subject: [PATCH] Able to switch to master from anywhere in the stack and can
 also return to the previously selected client from the master

---
 dwm.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/dwm.c b/dwm.c
index 5e4d494..eab8d57 100644
--- a/dwm.c
+++ b/dwm.c
@@ -127,6 +127,7 @@ struct Monitor {
 	Client *clients;
 	Client *sel;
 	Client *stack;
+	Client *stackfocused;
 	Monitor *next;
 	Window barwin;
 	const Layout *lt[2];
@@ -167,6 +168,7 @@ static void enternotify(XEvent *e);
 static void expose(XEvent *e);
 static void focus(Client *c);
 static void focusin(XEvent *e);
+static void focusmaster(const Arg *arg);
 static void focusmon(const Arg *arg);
 static void focusstack(const Arg *arg);
 static Atom getatomprop(Client *c, Atom prop);
@@ -660,6 +662,9 @@ detach(Client *c)
 {
 	Client **tc;
 
+	if (c == c->mon->stackfocused)
+		c->mon->stackfocused = NULL;
+
 	for (tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next);
 	*tc = c->next;
 }
@@ -816,6 +821,28 @@ focusin(XEvent *e)
 		setfocus(selmon->sel);
 }
 
+void
+focusmaster(const Arg *arg)
+{
+	Client *master;
+
+	if (selmon->nmaster > 1)
+		return;
+
+	master = nexttiled(selmon->clients);
+
+	if (!master)
+		return;
+
+	if (selmon->sel == master) {
+		if (master->mon->stackfocused)
+			focus(master->mon->stackfocused);
+	} else {
+		master->mon->stackfocused = master->mon->sel;
+		focus(master);
+	}
+}
+
 void
 focusmon(const Arg *arg)
 {
@@ -1203,6 +1230,7 @@ nexttiled(Client *c)
 void
 pop(Client *c)
 {
+	c->mon->stackfocused = nexttiled(c->mon->clients);
 	detach(c);
 	attach(c);
 	focus(c);
-- 
2.32.0