From ef0816393e3e6d019bdbd12c02427fddf15fa27d Mon Sep 17 00:00:00 2001
From: bakkeby <bakkeby@gmail.com>
Date: Tue, 7 Apr 2020 12:41:35 +0200
Subject: [PATCH] tagswapmon, swap all visible windows with those of one of the
 adjacent monitors

---
 config.def.h |  2 ++
 dwm.c        | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 64 insertions(+)

diff --git a/config.def.h b/config.def.h
index 1c0b587..09331fb 100644
--- a/config.def.h
+++ b/config.def.h
@@ -84,6 +84,8 @@ static Key keys[] = {
 	{ MODKEY,                       XK_period, focusmon,       {.i = +1 } },
 	{ MODKEY|ShiftMask,             XK_comma,  tagmon,         {.i = -1 } },
 	{ MODKEY|ShiftMask,             XK_period, tagmon,         {.i = +1 } },
+	{ MODKEY|Mod4Mask|ControlMask,  XK_comma,  tagswapmon,     {.i = +1 } },
+	{ MODKEY|Mod4Mask|ControlMask,  XK_period, tagswapmon,     {.i = -1 } },
 	TAGKEYS(                        XK_1,                      0)
 	TAGKEYS(                        XK_2,                      1)
 	TAGKEYS(                        XK_3,                      2)
diff --git a/dwm.c b/dwm.c
index 4465af1..53a3bf5 100644
--- a/dwm.c
+++ b/dwm.c
@@ -209,6 +209,7 @@ static void spawn(const Arg *arg);
 static void tag(const Arg *arg);
 static void tagmon(const Arg *arg);
 static void tile(Monitor *);
+static void tagswapmon(const Arg *arg);
 static void togglebar(const Arg *arg);
 static void togglefloating(const Arg *arg);
 static void toggletag(const Arg *arg);
@@ -1670,6 +1671,67 @@ tagmon(const Arg *arg)
 	sendmon(selmon->sel, dirtomon(arg->i));
 }
 
+void
+tagswapmon(const Arg *arg)
+{
+	Monitor *m;
+	Client *c, *sc = NULL, *mc = NULL, *next;
+
+	if (!mons->next)
+		return;
+
+	m = dirtomon(arg->i);
+
+	for (c = selmon->clients; c; c = next) {
+		next = c->next;
+		if (!ISVISIBLE(c))
+			continue;
+		unfocus(c, 1);
+		detach(c);
+		detachstack(c);
+		c->next = sc;
+		sc = c;
+	}
+
+	for (c = m->clients; c; c = next) {
+		next = c->next;
+		if (!ISVISIBLE(c))
+			continue;
+		unfocus(c, 1);
+		detach(c);
+		detachstack(c);
+		c->next = mc;
+		mc = c;
+	}
+
+	for (c = sc; c; c = next) {
+		next = c->next;
+		c->mon = m;
+		c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */
+		attach(c);
+		attachstack(c);
+		if (c->isfullscreen) {
+			resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh);
+			XRaiseWindow(dpy, c->win);
+		}
+	}
+
+	for (c = mc; c; c = next) {
+		next = c->next;
+		c->mon = selmon;
+		c->tags = selmon->tagset[selmon->seltags]; /* assign tags of target monitor */
+		attach(c);
+		attachstack(c);
+		if (c->isfullscreen) {
+			resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh);
+			XRaiseWindow(dpy, c->win);
+		}
+	}
+
+	focus(NULL);
+	arrange(NULL);
+}
+
 void
 tile(Monitor *m)
 {
-- 
2.19.1