layout menu patch

config.def.h

@@ -104,6 +104,7 @@ static const Layout layouts[] = {
 static char dmenumon[2] = "0"; /* component of dmenucmd, manipulated in spawn() */
 static const char *dmenucmd[] = { "dmenu_run", "-m", dmenumon, "-fn", dmenufont, "-nb", col_gray1, "-nf", col_gray3, "-sb", col_cyan, "-sf", col_gray4, NULL };
 static const char *termcmd[]  = { "st", NULL };
+static const char *layoutmenu_cmd = "layoutmenu.sh";
 #include "exitdwm.c"
 static const Key keys[] = {
 	/* modifier                     key        function        argument */
@@ -175,7 +176,7 @@ static const Key keys[] = {
 static const Button buttons[] = {
 	/* click                event mask      button          function        argument */
 	{ ClkLtSymbol,          0,              Button1,        setlayout,      {0} },
-	{ ClkLtSymbol,          0,              Button3,        setlayout,      {.v = &layouts[2]} },
+	{ ClkLtSymbol,          0,              Button3,        layoutmenu,     {0} },
 	{ ClkFollowSymbol,      0,              Button1,        togglefollow,   {0} },
 	{ ClkWinTitle,          0,              Button1,        togglewin,      {0} },
 	{ ClkWinTitle,          0,              Button2,        zoom,           {0} },

dwm.c

@@ -212,6 +212,7 @@ static void hidewin(Client *c);
 static void incnmaster(const Arg *arg);
 static void keypress(XEvent *e);
 static void killclient(const Arg *arg);
+static void layoutmenu(const Arg *arg);
 static void manage(Window w, XWindowAttributes *wa);
 static void mappingnotify(XEvent *e);
 static void maprequest(XEvent *e);
@@ -1402,6 +1403,24 @@ killclient(const Arg *arg)
 	}
 }
 
+void
+layoutmenu(const Arg *arg) {
+	FILE *p;
+	char c[3], *s;
+	int i;
+
+	if (!(p = popen(layoutmenu_cmd, "r")))
+		 return;
+	s = fgets(c, sizeof(c), p);
+	pclose(p);
+
+	if (!s || *s == '\0' || c[0] == '\0')
+		 return;
+
+	i = atoi(c);
+	setlayout(&((Arg) { .v = &layouts[i] }));
+}
+
 void
 manage(Window w, XWindowAttributes *wa)
 {

patches/functions/dwm-layoutmenu-6.2.diff

@@ -0,0 +1,89 @@
+From e45e286b3d639b90ef202996d87054cced1fd80e Mon Sep 17 00:00:00 2001
+From: tdu <tdukv@protonmail.com>
+Date: Mon, 31 Aug 2020 00:07:32 +0300
+Subject: [PATCH] Right clicking the layout symbol opens an xmenu prompt to
+ select layout.
+
+Xmenu need to be installed for this to work.
+Edit layoutmenu.sh with the correct layout table, and place in PATH.
+---
+ config.def.h  |  3 ++-
+ dwm.c         | 19 +++++++++++++++++++
+ layoutmenu.sh |  7 +++++++
+ 3 files changed, 28 insertions(+), 1 deletion(-)
+ create mode 100755 layoutmenu.sh
+
+diff --git a/config.def.h b/config.def.h
+index 1c0b587..c9e0833 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -58,6 +58,7 @@ static const Layout layouts[] = {
+ static char dmenumon[2] = "0"; /* component of dmenucmd, manipulated in spawn() */
+ static const char *dmenucmd[] = { "dmenu_run", "-m", dmenumon, "-fn", dmenufont, "-nb", col_gray1, "-nf", col_gray3, "-sb", col_cyan, "-sf", col_gray4, NULL };
+ static const char *termcmd[]  = { "st", NULL };
++static const char *layoutmenu_cmd = "layoutmenu.sh";
+ 
+ static Key keys[] = {
+ 	/* modifier                     key        function        argument */
+@@ -101,7 +102,7 @@ static Key keys[] = {
+ static Button buttons[] = {
+ 	/* click                event mask      button          function        argument */
+ 	{ ClkLtSymbol,          0,              Button1,        setlayout,      {0} },
+-	{ ClkLtSymbol,          0,              Button3,        setlayout,      {.v = &layouts[2]} },
++	{ ClkLtSymbol,          0,              Button3,        layoutmenu,     {0} },
+ 	{ ClkWinTitle,          0,              Button2,        zoom,           {0} },
+ 	{ ClkStatusText,        0,              Button2,        spawn,          {.v = termcmd } },
+ 	{ ClkClientWin,         MODKEY,         Button1,        movemouse,      {0} },
+diff --git a/dwm.c b/dwm.c
+index 4465af1..2508a0a 100644
+--- a/dwm.c
++++ b/dwm.c
+@@ -177,6 +177,7 @@ static void grabkeys(void);
+ static void incnmaster(const Arg *arg);
+ static void keypress(XEvent *e);
+ static void killclient(const Arg *arg);
++static void layoutmenu(const Arg *arg);
+ static void manage(Window w, XWindowAttributes *wa);
+ static void mappingnotify(XEvent *e);
+ static void maprequest(XEvent *e);
+@@ -1014,6 +1015,24 @@ killclient(const Arg *arg)
+ 	}
+ }
+ 
++void
++layoutmenu(const Arg *arg) {
++	FILE *p;
++	char c[3], *s;
++	int i;
++
++	if (!(p = popen(layoutmenu_cmd, "r")))
++		 return;
++	s = fgets(c, sizeof(c), p);
++	pclose(p);
++
++	if (!s || *s == '\0' || c[0] == '\0')
++		 return;
++
++	i = atoi(c);
++	setlayout(&((Arg) { .v = &layouts[i] }));
++}
++
+ void
+ manage(Window w, XWindowAttributes *wa)
+ {
+diff --git a/layoutmenu.sh b/layoutmenu.sh
+new file mode 100755
+index 0000000..1bf95f2
+--- /dev/null
++++ b/layoutmenu.sh
+@@ -0,0 +1,7 @@
++#!/bin/sh
++
++cat <<EOF | xmenu
++[]= Tiled Layout	0
++><> Floating Layout	1
++[M] Monocle Layout	2
++EOF
+-- 
+2.28.0
+

scripts/layoutmenu.sh

@@ -0,0 +1,7 @@
+#!/bin/sh
+
+cat <<EOF | xmenu
+[]= Tiled Layout	0
+><> Floating Layout	1
+[M] Monocle Layout	2
+EOF