From 9c7860886279977bf5d7a9792bae931ae5363a3f Mon Sep 17 00:00:00 2001
From: Joshua Yun <joshua@joshuayun.com>
Date: Mon, 31 Mar 2025 23:24:56 -0500
Subject: feat: xwayland display export, environment variables set in dwl

---
 config.def.h |  5 +++++
 dwl.c        | 10 ++++++++++
 2 files changed, 15 insertions(+)

diff --git a/config.def.h b/config.def.h
index 54f4c42..9f97854 100644
--- a/config.def.h
+++ b/config.def.h
@@ -28,6 +28,11 @@ static char *tags[] = { "1", "2", "3", "4", "5", "6", "7", "8", "9" };
 /* logging */
 static int log_level = WLR_ERROR;
 
+static const Env envs[] = {
+	/* variable			value */
+	{ "XDG_CURRENT_DESKTOP",	"wlroots" },
+};
+
 /* Autostart */
 static const char *const autostart[] = {
   "systemctl",  "--user" , "import-environment",  "WAYLAND_DISPLAY", "XDG_CURRENT_DESKTOP", "XDG_SESSION_DESKTOP", "XDG_SESSION_TYPE", NULL,
diff --git a/dwl.c b/dwl.c
index 30ccf1d..1d8a334 100644
--- a/dwl.c
+++ b/dwl.c
@@ -260,6 +260,11 @@ typedef struct {
 	int monitor;
 } Rule;
 
+typedef struct {
+	const char *variable;
+	const char *value;
+} Env;
+
 typedef struct {
 	struct wlr_scene_tree *scene;
 
@@ -2580,6 +2585,8 @@ run(char *startup_cmd)
 	if (!socket)
 		die("startup: display_add_socket_auto");
 	setenv("WAYLAND_DISPLAY", socket, 1);
+	for (size_t i = 0; i < LENGTH(envs); i++)
+		setenv(envs[i].variable, envs[i].value, 1);
 
 	/* Start the backend. This will enumerate outputs and inputs, become the DRM
 	 * master, etc */
@@ -2599,6 +2606,9 @@ run(char *startup_cmd)
 		}
 	}
 
+  /* Added display setup for xwayland-satellite */
+  setenv("DISPLAY", ":0", 1);
+
 	drawbars();
 
 	/* At this point the outputs are initialized, choose initial selmon based on
-- 
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