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diff --git i/dwm.c w/dwm.c
index 4150456..4c60342 100644
--- i/dwm.c
+++ w/dwm.c
@@ -221,6 +221,7 @@ static void setmfact(const Arg *arg);
static void setup(void);
static void seturgent(Client *c, int urg);
static void showhide(Client *c);
+static int solitary(Client *c);
static void spawn(const Arg *arg);
static void tag(const Arg *arg);
static void tagmon(const Arg *arg);
@@ -889,7 +890,11 @@ focus(Client *c)
detachstack(c);
attachstack(c);
grabbuttons(c, 1);
- XSetWindowBorder(dpy, c->win, scheme[SchemeSel][ColBorder].pixel);
+ /* Avoid flickering when another client appears and the border
+ * is restored */
+ if (!solitary(c)) {
+ XSetWindowBorder(dpy, c->win, scheme[SchemeSel][ColBorder].pixel);
+ }
setfocus(c);
} else {
XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
@@ -1500,6 +1505,11 @@ resizeclient(Client *c, int x, int y, int w, int h)
c->oldw = c->w; c->w = wc.width = w;
c->oldh = c->h; c->h = wc.height = h;
wc.border_width = c->bw;
+ if (solitary(c)) {
+ c->w = wc.width += c->bw * 2;
+ c->h = wc.height += c->bw * 2;
+ wc.border_width = 0;
+ }
XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
configure(c);
XSync(dpy, False);
@@ -1852,6 +1862,15 @@ showhide(Client *c)
}
}
+int
+solitary(Client *c)
+{
+ return ((nexttiled(c->mon->clients) == c && !nexttiled(c->next))
+ || &monocle == c->mon->lt[c->mon->sellt]->arrange)
+ && !c->isfullscreen && !c->isfloating
+ && NULL != c->mon->lt[c->mon->sellt]->arrange;
+}
+
void
spawn(const Arg *arg)
{
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