From b9141091994ba657af534453ab913663a8258f9a Mon Sep 17 00:00:00 2001
From: oxinosg <georgios.oxinos.extern@elinvar.de>
Date: Sat, 24 Jul 2021 23:31:30 +0200
Subject: [PATCH] [dwm][cantogglefloating] patch that allows disabling focus on
 floating clients

---
 config.def.h |  1 +
 dwm.c        | 67 ++++++++++++++++++++++++++++++++++++++++++++++++----
 2 files changed, 63 insertions(+), 5 deletions(-)

diff --git a/config.def.h b/config.def.h
index 1c0b587..005fb5d 100644
--- a/config.def.h
+++ b/config.def.h
@@ -70,6 +70,7 @@ static Key keys[] = {
 	{ MODKEY,                       XK_d,      incnmaster,     {.i = -1 } },
 	{ MODKEY,                       XK_h,      setmfact,       {.f = -0.05} },
 	{ MODKEY,                       XK_l,      setmfact,       {.f = +0.05} },
+  { MODKEY,                       XK_s,      togglecanfocusfloating,   {0} },
 	{ MODKEY,                       XK_Return, zoom,           {0} },
 	{ MODKEY,                       XK_Tab,    view,           {0} },
 	{ MODKEY|ShiftMask,             XK_c,      killclient,     {0} },
diff --git a/dwm.c b/dwm.c
index 4465af1..ae0a0ea 100644
--- a/dwm.c
+++ b/dwm.c
@@ -92,7 +92,7 @@ struct Client {
 	int basew, baseh, incw, inch, maxw, maxh, minw, minh;
 	int bw, oldbw;
 	unsigned int tags;
-	int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
+	int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen, cantfocus;
 	Client *next;
 	Client *snext;
 	Monitor *mon;
@@ -191,6 +191,7 @@ static Monitor *recttomon(int x, int y, int w, int h);
 static void resize(Client *c, int x, int y, int w, int h, int interact);
 static void resizeclient(Client *c, int x, int y, int w, int h);
 static void resizemouse(const Arg *arg);
+static void resetcanfocusfloating();
 static void restack(Monitor *m);
 static void run(void);
 static void scan(void);
@@ -211,6 +212,7 @@ static void tagmon(const Arg *arg);
 static void tile(Monitor *);
 static void togglebar(const Arg *arg);
 static void togglefloating(const Arg *arg);
+static void togglecanfocusfloating(const Arg *arg);
 static void toggletag(const Arg *arg);
 static void toggleview(const Arg *arg);
 static void unfocus(Client *c, int setfocus);
@@ -788,6 +790,8 @@ focus(Client *c)
 	if (selmon->sel && selmon->sel != c)
 		unfocus(selmon->sel, 0);
 	if (c) {
+		if (c->cantfocus)
+			return;
 		if (c->mon != selmon)
 			selmon = c->mon;
 		if (c->isurgent)
@@ -837,16 +841,16 @@ focusstack(const Arg *arg)
 	if (!selmon->sel)
 		return;
 	if (arg->i > 0) {
-		for (c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next);
+		for (c = selmon->sel->next; c && (!ISVISIBLE(c) || c->cantfocus); c = c->next);
 		if (!c)
-			for (c = selmon->clients; c && !ISVISIBLE(c); c = c->next);
+			for (c = selmon->clients; c && (!ISVISIBLE(c) || c->cantfocus); c = c->next);
 	} else {
 		for (i = selmon->clients; i != selmon->sel; i = i->next)
-			if (ISVISIBLE(i))
+      if (ISVISIBLE(i) && !i->cantfocus)
 				c = i;
 		if (!c)
 			for (; i; i = i->next)
-				if (ISVISIBLE(i))
+        if (ISVISIBLE(i) && !i->cantfocus)
 					c = i;
 	}
 	if (c) {
@@ -1716,6 +1720,59 @@ togglefloating(const Arg *arg)
 	if (selmon->sel->isfloating)
 		resize(selmon->sel, selmon->sel->x, selmon->sel->y,
 			selmon->sel->w, selmon->sel->h, 0);
+
+  resetcanfocusfloating();
+
+	arrange(selmon);
+}
+
+void
+resetcanfocusfloating()
+{
+	unsigned int i, n;
+	Client *c;
+
+	for (n = 0, c = selmon->clients; c; c = c->next, n++);
+	if (n == 0)
+		return;
+
+	for (i = 0, c = selmon->clients; c; c = c->next, i++)
+    if (c->isfloating)
+      c->cantfocus = 0;
+
+	arrange(selmon);
+}
+
+void
+togglecanfocusfloating(const Arg *arg)
+{
+	unsigned int n;
+	Client *c, *cf = NULL;
+
+  if (!selmon->sel)
+      return;
+
+  for (c = selmon->clients; c; c = c->next)
+      if (c->cantfocus == 1) {
+          cf = c;
+      }
+
+  if (cf) {
+      resetcanfocusfloating();
+      focus(cf);
+  } else {
+    for (n = 0, c = selmon->clients; c; c = c->next)
+        if (c->isfloating)
+            c->cantfocus = !c->cantfocus;
+        else
+            n++;
+
+    if (n && selmon->sel->isfloating) {
+        c = nexttiled(selmon->clients);
+        focus(c);
+    }
+  }
+
 	arrange(selmon);
 }
 
-- 
2.27.0