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dwm-noborderflicker-20211227-8657affa2a61.diff (1358B)

      1 diff --git dwm.c dwm.c
      2 index a96f33c..34d1321 100644
      3 --- dwm.c
      4 +++ dwm.c
      5 @@ -236,6 +236,7 @@ static int xerrorstart(Display *dpy, XErrorEvent *ee);
      6  static void zoom(const Arg *arg);
      7  
      8  /* variables */
      9 +static Client *lastfocused = NULL;
     10  static const char broken[] = "broken";
     11  static char stext[256];
     12  static int screen;
     13 @@ -799,7 +800,11 @@ focus(Client *c)
     14  		detachstack(c);
     15  		attachstack(c);
     16  		grabbuttons(c, 1);
     17 +		/* set new focused border first to avoid flickering */
     18  		XSetWindowBorder(dpy, c->win, scheme[SchemeSel][ColBorder].pixel);
     19 +		/* lastfocused may be us if another window was unmanaged */
     20 +		if (lastfocused && lastfocused != c)
     21 +			XSetWindowBorder(dpy, lastfocused->win, scheme[SchemeNorm][ColBorder].pixel);
     22  		setfocus(c);
     23  	} else {
     24  		XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
     25 @@ -1758,7 +1763,7 @@ unfocus(Client *c, int setfocus)
     26  	if (!c)
     27  		return;
     28  	grabbuttons(c, 0);
     29 -	XSetWindowBorder(dpy, c->win, scheme[SchemeNorm][ColBorder].pixel);
     30 +	lastfocused = c;
     31  	if (setfocus) {
     32  		XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
     33  		XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
     34 @@ -1784,6 +1789,8 @@ unmanage(Client *c, int destroyed)
     35  		XSetErrorHandler(xerror);
     36  		XUngrabServer(dpy);
     37  	}
     38 +	if (lastfocused == c)
     39 +		lastfocused = NULL;
     40  	free(c);
     41  	focus(NULL);
     42  	updateclientlist();