Applied the dragmfact patch

config.def.h

@@ -152,6 +152,6 @@ static const Key keys[] = {
 
 static const Button buttons[] = {
 	{ MODKEY, BTN_LEFT,   moveresize,     {.ui = CurMove} },
-	{ MODKEY, BTN_MIDDLE, togglefloating, {0} },
+	{ MODKEY, BTN_MIDDLE, moveresize,     {.ui = Curmfact} },
 	{ MODKEY, BTN_RIGHT,  moveresize,     {.ui = CurResize} },
 };

dwl.c

@@ -72,7 +72,7 @@
 #define IDLE_NOTIFY_ACTIVITY    wlr_idle_notify_activity(idle, seat), wlr_idle_notifier_v1_notify_activity(idle_notifier, seat)
 
 /* enums */
-enum { CurNormal, CurPressed, CurMove, CurResize }; /* cursor */
+enum { CurNormal, CurPressed, CurMove, CurResize, Curmfact }; /* cursor */
 enum { XDGShell, LayerShell, X11Managed, X11Unmanaged }; /* client types */
 enum { LyrBg, LyrBottom, LyrTop, LyrOverlay, LyrTile, LyrFloat, LyrFS, LyrDragIcon, LyrBlock, NUM_LAYERS }; /* scene layers */
 #ifdef XWAYLAND
@@ -1738,6 +1738,9 @@ motionnotify(uint32_t time)
 		resize(grabc, (struct wlr_box){.x = grabc->geom.x, .y = grabc->geom.y,
 			.width = cursor->x - grabc->geom.x, .height = cursor->y - grabc->geom.y}, 1);
 		return;
+	} else if (cursor_mode == Curmfact) {
+		selmon->mfact = cursor->x / selmon->m.width;
+		arrange(selmon);
 	}
 
 	/* Find the client under the pointer and send the event along. */
@@ -1787,14 +1790,15 @@ moveresize(const Arg *arg)
 		return;
 
 	/* Float the window and tell motionnotify to grab it */
-	setfloating(grabc, 1);
 	switch (cursor_mode = arg->ui) {
 	case CurMove:
+		setfloating(grabc, 1);
 		grabcx = cursor->x - grabc->geom.x;
 		grabcy = cursor->y - grabc->geom.y;
 		wlr_xcursor_manager_set_cursor_image(cursor_mgr, (cursor_image = "fleur"), cursor);
 		break;
 	case CurResize:
+		setfloating(grabc, 1);
 		/* Doesn't work for X11 output - the next absolute motion event
 		 * returns the cursor to where it started */
 		wlr_cursor_warp_closest(cursor, NULL,
@@ -1803,6 +1807,9 @@ moveresize(const Arg *arg)
 		wlr_xcursor_manager_set_cursor_image(cursor_mgr,
 				(cursor_image = "bottom_right_corner"), cursor);
 		break;
+	case Curmfact:
+		selmon->mfact = cursor->x / selmon->m.width;
+		arrange(selmon);
 	}
 }
 

patches/dragmfact.patch

@@ -0,0 +1,72 @@
+From 27b59e9ebea0f5f5de6e00c82dd93db108c7bd95 Mon Sep 17 00:00:00 2001
+From: Palanix <palanixyt@gmail.com>
+Date: Fri, 25 Mar 2022 23:45:10 +0100
+Subject: [PATCH] Change mfact using Middle mouse
+
+---
+ config.def.h |  2 +-
+ dwl.c        | 11 +++++++++--
+ 2 files changed, 10 insertions(+), 3 deletions(-)
+
+diff --git a/config.def.h b/config.def.h
+index 419e6ef4..caf86d6e 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -153,6 +153,6 @@ static const Key keys[] = {
+ 
+ static const Button buttons[] = {
+ 	{ MODKEY, BTN_LEFT,   moveresize,     {.ui = CurMove} },
+-	{ MODKEY, BTN_MIDDLE, togglefloating, {0} },
++	{ MODKEY, BTN_MIDDLE, moveresize,     {.ui = Curmfact} },
+ 	{ MODKEY, BTN_RIGHT,  moveresize,     {.ui = CurResize} },
+ };
+diff --git a/dwl.c b/dwl.c
+index 8043bf98..cda25079 100644
+--- a/dwl.c
++++ b/dwl.c
+@@ -72,7 +72,7 @@
+ #define IDLE_NOTIFY_ACTIVITY    wlr_idle_notify_activity(idle, seat), wlr_idle_notifier_v1_notify_activity(idle_notifier, seat)
+ 
+ /* enums */
+-enum { CurNormal, CurPressed, CurMove, CurResize }; /* cursor */
++enum { CurNormal, CurPressed, CurMove, CurResize, Curmfact }; /* cursor */
+ enum { XDGShell, LayerShell, X11Managed, X11Unmanaged }; /* client types */
+ enum { LyrBg, LyrBottom, LyrTop, LyrOverlay, LyrTile, LyrFloat, LyrFS, LyrDragIcon, LyrBlock, NUM_LAYERS }; /* scene layers */
+ #ifdef XWAYLAND
+@@ -1649,6 +1649,9 @@ motionnotify(uint32_t time)
+ 		resize(grabc, (struct wlr_box){.x = grabc->geom.x, .y = grabc->geom.y,
+ 			.width = cursor->x - grabc->geom.x, .height = cursor->y - grabc->geom.y}, 1);
+ 		return;
++	} else if (cursor_mode == Curmfact) {
++		selmon->mfact = cursor->x / selmon->m.width;
++		arrange(selmon);
+ 	}
+ 
+ 	/* Find the client under the pointer and send the event along. */
+@@ -1698,14 +1701,15 @@ moveresize(const Arg *arg)
+ 		return;
+ 
+ 	/* Float the window and tell motionnotify to grab it */
+-	setfloating(grabc, 1);
+ 	switch (cursor_mode = arg->ui) {
+ 	case CurMove:
++		setfloating(grabc, 1);
+ 		grabcx = cursor->x - grabc->geom.x;
+ 		grabcy = cursor->y - grabc->geom.y;
+ 		wlr_xcursor_manager_set_cursor_image(cursor_mgr, (cursor_image = "fleur"), cursor);
+ 		break;
+ 	case CurResize:
++		setfloating(grabc, 1);
+ 		/* Doesn't work for X11 output - the next absolute motion event
+ 		 * returns the cursor to where it started */
+ 		wlr_cursor_warp_closest(cursor, NULL,
+@@ -1714,6 +1718,9 @@ moveresize(const Arg *arg)
+ 		wlr_xcursor_manager_set_cursor_image(cursor_mgr,
+ 				(cursor_image = "bottom_right_corner"), cursor);
+ 		break;
++	case Curmfact:
++		selmon->mfact = cursor->x / selmon->m.width;
++		arrange(selmon);
+ 	}
+ }
+