From 681e520deaeee460647de36f5312af3cb0c31f4a Mon Sep 17 00:00:00 2001
From: Ben Collerson <benc@benc.cc>
Date: Sat, 30 Dec 2023 13:39:31 +1000
Subject: [PATCH] simpleborders

---
 dwl.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/dwl.c b/dwl.c
index 4d19357..900e651 100644
--- a/dwl.c
+++ b/dwl.c
@@ -245,6 +245,7 @@ static void cleanupmon(struct wl_listener *listener, void *data);
 static void closemon(Monitor *m);
 static void commitlayersurfacenotify(struct wl_listener *listener, void *data);
 static void commitnotify(struct wl_listener *listener, void *data);
+static int countclients(Monitor *m);
 static void createdecoration(struct wl_listener *listener, void *data);
 static void createidleinhibitor(struct wl_listener *listener, void *data);
 static void createkeyboard(struct wlr_keyboard *keyboard);
@@ -286,6 +287,7 @@ static void motionabsolute(struct wl_listener *listener, void *data);
 static void motionnotify(uint32_t time);
 static void motionrelative(struct wl_listener *listener, void *data);
 static void moveresize(const Arg *arg);
+static int needsborder(Client *c);
 static void outputmgrapply(struct wl_listener *listener, void *data);
 static void outputmgrapplyortest(struct wlr_output_configuration_v1 *config, int test);
 static void outputmgrtest(struct wl_listener *listener, void *data);
@@ -739,6 +741,17 @@ commitnotify(struct wl_listener *listener, void *data)
 		c->resize = 0;
 }
 
+int
+countclients(Monitor *m)
+{
+	unsigned int n = 0;
+	Client *c;
+	wl_list_for_each(c, &clients, link)
+		if (VISIBLEON(c, m) && !c->isfloating && !c->isfullscreen)
+			n++;
+	return n;
+}
+
 void
 createdecoration(struct wl_listener *listener, void *data)
 {
@@ -1697,6 +1710,14 @@ moveresize(const Arg *arg)
 	}
 }
 
+int
+needsborder(Client *c) {
+	return ((countclients(c->mon) > 1
+			&& c->mon->lt[c->mon->sellt]->arrange != monocle)
+		|| c->isfloating)
+		&& !c->isfullscreen;
+}
+
 void
 outputmgrapply(struct wl_listener *listener, void *data)
 {
@@ -1930,6 +1951,7 @@ resize(Client *c, struct wlr_box geo, int interact)
 	struct wlr_box clip;
 	client_set_bounds(c, geo.width, geo.height);
 	c->geom = geo;
+	c->bw = needsborder(c) ? borderpx : 0;
 	applybounds(c, bbox);
 
 	/* Update scene-graph, including borders */
-- 
2.43.0

