From 680c307f0c74f8fd96e0ca2683c750c402d675ec Mon Sep 17 00:00:00 2001
From: Warrick Lo <warrick.s.z.lo@gmail.com>
Date: Wed, 24 Nov 2021 03:16:17 -0800
Subject: Window focus now only switches on click

---
 config.def.h |  2 +-
 dwm.c        | 49 +++++--------------------------------------------
 2 files changed, 6 insertions(+), 45 deletions(-)

diff --git a/config.def.h b/config.def.h
index 4195692..d40c2c6 100644
--- a/config.def.h
+++ b/config.def.h
@@ -8,6 +8,7 @@ static const unsigned int snap      = 32;       /* snap pixel */
 static const int swallowfloating    = 0;        /* 1 means swallow floating windows by default */
 static const int showbar            = 1;        /* 0 means no bar */
 static const int topbar             = 1;        /* 0 means bottom bar */
+static const int focusonwheel       = 0;        /* 1 means scrolling will switch focus */
 static const char *fonts[]          = { "monospace:size=10" };
 static const char dmenufont[]       = "monospace:size=10";
 static const char col_gray1[]       = "#222222";
@@ -129,4 +130,3 @@ static Button buttons[] = {
 	{ ClkTagBar,            MODKEY,         Button1,        tag,            {0} },
 	{ ClkTagBar,            MODKEY,         Button3,        toggletag,      {0} },
 };
-
diff --git a/dwm.c b/dwm.c
index 2f1d173..4aa21e2 100644
--- a/dwm.c
+++ b/dwm.c
@@ -141,7 +141,7 @@ struct Monitor {
 	int num;
 	int by;               /* bar geometry */
 	int mx, my, mw, mh;   /* screen size */
-	int wx, wy, ww, wh;   /* window area  */
+	int wx, wy, ww, wh;   /* window area */
 	unsigned int seltags;
 	unsigned int sellt;
 	unsigned int tagset[2];
@@ -191,7 +191,6 @@ static void detachstack(Client *c);
 static Monitor *dirtomon(int dir);
 static void drawbar(Monitor *m);
 static void drawbars(void);
-static void enternotify(XEvent *e);
 static void expose(XEvent *e);
 static void focus(Client *c);
 static void focusin(XEvent *e);
@@ -212,7 +211,6 @@ static void manage(Window w, XWindowAttributes *wa);
 static void mappingnotify(XEvent *e);
 static void maprequest(XEvent *e);
 static void monocle(Monitor *m);
-static void motionnotify(XEvent *e);
 static void movemouse(const Arg *arg);
 static void movestack(const Arg *arg);
 static Client *nexttagged(Client *c);
@@ -294,13 +292,11 @@ static void (*handler[LASTEvent]) (XEvent *) = {
 	[ConfigureRequest] = configurerequest,
 	[ConfigureNotify] = configurenotify,
 	[DestroyNotify] = destroynotify,
-	[EnterNotify] = enternotify,
 	[Expose] = expose,
 	[FocusIn] = focusin,
 	[KeyPress] = keypress,
 	[MappingNotify] = mappingnotify,
 	[MapRequest] = maprequest,
-	[MotionNotify] = motionnotify,
 	[PropertyNotify] = propertynotify,
 	[UnmapNotify] = unmapnotify
 };
@@ -523,7 +519,8 @@ buttonpress(XEvent *e)
 
 	click = ClkRootWin;
 	/* focus monitor if necessary */
-	if ((m = wintomon(ev->window)) && m != selmon) {
+	if ((m = wintomon(ev->window)) && m != selmon
+	&& (focusonwheel || (ev->button != Button4 && ev->button != Button5))) {
 		unfocus(selmon->sel, 1);
 		selmon = m;
 		focus(NULL);
@@ -543,8 +540,8 @@ buttonpress(XEvent *e)
 		else
 			click = ClkWinTitle;
 	} else if ((c = wintoclient(ev->window))) {
-		focus(c);
-		restack(selmon);
+		if (focusonwheel || (ev->button != Button4 && ev->button != Button5))
+			focus(c);
 		XAllowEvents(dpy, ReplayPointer, CurrentTime);
 		click = ClkClientWin;
 	}
@@ -874,25 +871,6 @@ drawbars(void)
 		drawbar(m);
 }
 
-void
-enternotify(XEvent *e)
-{
-	Client *c;
-	Monitor *m;
-	XCrossingEvent *ev = &e->xcrossing;
-
-	if ((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root)
-		return;
-	c = wintoclient(ev->window);
-	m = c ? c->mon : wintomon(ev->window);
-	if (m != selmon) {
-		unfocus(selmon->sel, 1);
-		selmon = m;
-	} else if (!c || c == selmon->sel)
-		return;
-	focus(c);
-}
-
 void
 expose(XEvent *e)
 {
@@ -1294,23 +1272,6 @@ monocle(Monitor *m)
 			resize(c, m->wx - c->bw, m->wy, m->ww, m->wh, False);
 }
 
-void
-motionnotify(XEvent *e)
-{
-	static Monitor *mon = NULL;
-	Monitor *m;
-	XMotionEvent *ev = &e->xmotion;
-
-	if (ev->window != root)
-		return;
-	if ((m = recttomon(ev->x_root, ev->y_root, 1, 1)) != mon && mon) {
-		unfocus(selmon->sel, 1);
-		selmon = m;
-		focus(NULL);
-	}
-	mon = m;
-}
-
 void
 movemouse(const Arg *arg)
 {
-- 
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