From 9d1be1dc5c97048cb3d0ed51a8af9abed286edfe Mon Sep 17 00:00:00 2001
From: Alexander Bocken <alexander@bocken.org>
Date: Sun, 5 Jul 2020 15:14:13 +0200
Subject: [PATCH] added zoom swap patch

---
 README.md                     |  1 +
 dwm.c                         | 44 ++++++++++++++--
 patches/dwm-zoomswap-6.2.diff | 95 +++++++++++++++++++++++++++++++++++
 3 files changed, 136 insertions(+), 4 deletions(-)
 create mode 100644 patches/dwm-zoomswap-6.2.diff

diff --git a/README.md b/README.md
index ad83aee..65a8b3a 100644
--- a/README.md
+++ b/README.md
@@ -25,6 +25,7 @@ Patches
 - sticky
 - warp mouse to center of focussed window
 - scratchpads
+- zoom swap
 
 
 Requirements
diff --git a/dwm.c b/dwm.c
index 4e8fc13..c3852e0 100644
--- a/dwm.c
+++ b/dwm.c
@@ -169,6 +169,7 @@ static void drawbar(Monitor *m);
 static void drawbars(void);
 static void enternotify(XEvent *e);
 static void expose(XEvent *e);
+static Client *findbefore(Client *c);
 static void focus(Client *c);
 static void focusin(XEvent *e);
 static void focusmon(const Arg *arg);
@@ -248,6 +249,7 @@ static void centeredmaster(Monitor *m);
 static void centeredfloatingmaster(Monitor *m);
 
 /* variables */
+static Client *prevzoom = NULL;
 static const char broken[] = "broken";
 static char stext[256];
 static int screen;
@@ -831,6 +833,16 @@ expose(XEvent *e)
 		drawbar(m);
 }
 
+Client *
+findbefore(Client *c)
+{
+	Client *tmp;
+	if (c == selmon->clients)
+		return NULL;
+	for (tmp = selmon->clients; tmp && tmp->next != c; tmp = tmp->next);
+	return tmp;
+}
+
 void
 focus(Client *c)
 {
@@ -2245,14 +2257,38 @@ void
 zoom(const Arg *arg)
 {
 	Client *c = selmon->sel;
+	Client *at = NULL, *cold, *cprevious = NULL;
 
 	if (!selmon->lt[selmon->sellt]->arrange
 	|| (selmon->sel && selmon->sel->isfloating))
 		return;
-	if (c == nexttiled(selmon->clients))
-		if (!c || !(c = nexttiled(c->next)))
-			return;
-	pop(c);
+	if (c == nexttiled(selmon->clients)) {
+		at = findbefore(prevzoom);
+		if (at)
+			cprevious = nexttiled(at->next);
+		if (!cprevious || cprevious != prevzoom) {
+			prevzoom = NULL;
+			if (!c || !(c = nexttiled(c->next)))
+				return;
+		} else
+			c = cprevious;
+	}
+	cold = nexttiled(selmon->clients);
+	if (c != cold && !at)
+		at = findbefore(c);
+	detach(c);
+	attach(c);
+	/* swap windows instead of pushing the previous one down */
+	if (c != cold && at) {
+		prevzoom = cold;
+		if (cold && at != cold) {
+			detach(cold);
+			cold->next = at->next;
+			at->next = cold;
+		}
+	}
+	focus(c);
+	arrange(c->mon);
 }
 
 int
diff --git a/patches/dwm-zoomswap-6.2.diff b/patches/dwm-zoomswap-6.2.diff
new file mode 100644
index 0000000..3c658e6
--- /dev/null
+++ b/patches/dwm-zoomswap-6.2.diff
@@ -0,0 +1,95 @@
+From 3867ef5a68e15a4faff377ddbc8371853de4a800 Mon Sep 17 00:00:00 2001
+From: aleks <aleks.stier@icloud.com>
+Date: Sat, 19 Oct 2019 00:56:21 +0200
+Subject: [PATCH] Put master to exact position of zoomed client
+
+The default behaviour when zooming a client is to put the previous
+master on top of the client-stack. This patch puts the master to the
+exact position of the zoomed client in the stack.
+---
+ dwm.c | 44 ++++++++++++++++++++++++++++++++++++++++----
+ 1 file changed, 40 insertions(+), 4 deletions(-)
+
+diff --git a/dwm.c b/dwm.c
+index 4465af1..1719b36 100644
+--- a/dwm.c
++++ b/dwm.c
+@@ -165,6 +165,7 @@ static void drawbar(Monitor *m);
+ static void drawbars(void);
+ static void enternotify(XEvent *e);
+ static void expose(XEvent *e);
++static Client *findbefore(Client *c);
+ static void focus(Client *c);
+ static void focusin(XEvent *e);
+ static void focusmon(const Arg *arg);
+@@ -235,6 +236,7 @@ static int xerrorstart(Display *dpy, XErrorEvent *ee);
+ static void zoom(const Arg *arg);
+ 
+ /* variables */
++static Client *prevzoom = NULL;
+ static const char broken[] = "broken";
+ static char stext[256];
+ static int screen;
+@@ -780,6 +782,16 @@ expose(XEvent *e)
+ 		drawbar(m);
+ }
+ 
++Client *
++findbefore(Client *c)
++{
++	Client *tmp;
++	if (c == selmon->clients)
++		return NULL;
++	for (tmp = selmon->clients; tmp && tmp->next != c; tmp = tmp->next);
++	return tmp;
++}
++
+ void
+ focus(Client *c)
+ {
+@@ -2114,14 +2126,38 @@ void
+ zoom(const Arg *arg)
+ {
+ 	Client *c = selmon->sel;
++	Client *at = NULL, *cold, *cprevious = NULL;
+ 
+ 	if (!selmon->lt[selmon->sellt]->arrange
+ 	|| (selmon->sel && selmon->sel->isfloating))
+ 		return;
+-	if (c == nexttiled(selmon->clients))
+-		if (!c || !(c = nexttiled(c->next)))
+-			return;
+-	pop(c);
++	if (c == nexttiled(selmon->clients)) {
++		at = findbefore(prevzoom);
++		if (at)
++			cprevious = nexttiled(at->next);
++		if (!cprevious || cprevious != prevzoom) {
++			prevzoom = NULL;
++			if (!c || !(c = nexttiled(c->next)))
++				return;
++		} else
++			c = cprevious;
++	}
++	cold = nexttiled(selmon->clients);
++	if (c != cold && !at)
++		at = findbefore(c);
++	detach(c);
++	attach(c);
++	/* swap windows instead of pushing the previous one down */
++	if (c != cold && at) {
++		prevzoom = cold;
++		if (cold && at != cold) {
++			detach(cold);
++			cold->next = at->next;
++			at->next = cold;
++		}
++	}
++	focus(c);
++	arrange(c->mon);
+ }
+ 
+ int
+-- 
+2.23.0
+