From 07aeef1f7ee2e5c48846fcdbd651fc8162c02c57 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Leonardo=20Hern=C3=A1ndez=20Hern=C3=A1ndez?=
 <leohdz172@proton.me>
Date: Fri, 9 Aug 2024 21:34:02 -0600
Subject: [PATCH] guarantee client_get_{title,appid} never return NULL
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

ΔSLOC: -6
---
 client.h |  8 ++++----
 dwl.c    | 14 ++++----------
 2 files changed, 8 insertions(+), 14 deletions(-)

diff --git a/client.h b/client.h
index 3dc1050..e0c45fd 100644
--- a/client.h
+++ b/client.h
@@ -126,9 +126,9 @@ client_get_appid(Client *c)
 {
 #ifdef XWAYLAND
 	if (client_is_x11(c))
-		return c->surface.xwayland->class;
+		return c->surface.xwayland->class ? c->surface.xwayland->class : "broken";
 #endif
-	return c->surface.xdg->toplevel->app_id;
+	return c->surface.xdg->toplevel->app_id ? c->surface.xdg->toplevel->app_id : "broken";
 }
 
 static inline void
@@ -200,9 +200,9 @@ client_get_title(Client *c)
 {
 #ifdef XWAYLAND
 	if (client_is_x11(c))
-		return c->surface.xwayland->title;
+		return c->surface.xwayland->title ? c->surface.xwayland->title : "broken";
 #endif
-	return c->surface.xdg->toplevel->title;
+	return c->surface.xdg->toplevel->title ? c->surface.xdg->toplevel->title : "broken";
 }
 
 static inline int
diff --git a/dwl.c b/dwl.c
index d28e9f1..b88d7b1 100644
--- a/dwl.c
+++ b/dwl.c
@@ -358,7 +358,6 @@ static void xytonode(double x, double y, struct wlr_surface **psurface,
 static void zoom(const Arg *arg);
 
 /* variables */
-static const char broken[] = "broken";
 static pid_t child_pid = -1;
 static int locked;
 static void *exclusive_focus;
@@ -462,10 +461,8 @@ applyrules(Client *c)
 	Monitor *mon = selmon, *m;
 
 	c->isfloating = client_is_float_type(c);
-	if (!(appid = client_get_appid(c)))
-		appid = broken;
-	if (!(title = client_get_title(c)))
-		title = broken;
+	appid = client_get_appid(c);
+	title = client_get_title(c);
 
 	for (r = rules; r < END(rules); r++) {
 		if ((!r->title || strstr(title, r->title))
@@ -2040,7 +2037,6 @@ printstatus(void)
 	Monitor *m = NULL;
 	Client *c;
 	uint32_t occ, urg, sel;
-	const char *appid, *title;
 
 	wl_list_for_each(m, &mons, link) {
 		occ = urg = 0;
@@ -2052,10 +2048,8 @@ printstatus(void)
 				urg |= c->tags;
 		}
 		if ((c = focustop(m))) {
-			title = client_get_title(c);
-			appid = client_get_appid(c);
-			printf("%s title %s\n", m->wlr_output->name, title ? title : broken);
-			printf("%s appid %s\n", m->wlr_output->name, appid ? appid : broken);
+			printf("%s title %s\n", m->wlr_output->name, client_get_title(c));
+			printf("%s appid %s\n", m->wlr_output->name, client_get_appid(c));
 			printf("%s fullscreen %d\n", m->wlr_output->name, c->isfullscreen);
 			printf("%s floating %d\n", m->wlr_output->name, c->isfloating);
 			sel = c->tags;