From 6c12e218ad2448c109d3dc7de2ea21eeb084b956 Mon Sep 17 00:00:00 2001
From: c4pp4
Date: Sat, 16 Jul 2022 06:49:25 +0200
Subject: [PATCH 1/1] Disable headerbar close button when not in GNOME

Signed-off-by: c4pp4
---
 src/hdy-header-bar.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/src/hdy-header-bar.c b/src/hdy-header-bar.c
index 9d455e1..7734272 100644
--- a/src/hdy-header-bar.c
+++ b/src/hdy-header-bar.c
@@ -2567,6 +2567,37 @@ hdy_header_bar_set_custom_title (HdyHeaderBar *self,
   g_object_notify_by_pspec (G_OBJECT (self), props[PROP_CUSTOM_TITLE]);
 }
 
+static gboolean
+disable_headerbar ()
+{
+  const gchar *desktop_name_list;
+  const gchar *gtk_csd_env;
+  gchar **names;
+  gboolean in_list = FALSE;
+  gint i;
+
+  gtk_csd_env = g_getenv ("GTK_CSD");
+  if (!gtk_csd_env)
+    return FALSE;
+
+  desktop_name_list = g_getenv ("XDG_CURRENT_DESKTOP");
+  if (!desktop_name_list)
+    return FALSE;
+
+  names = g_strsplit (desktop_name_list, ":", -1);
+  for (i = 0; names[i] && !in_list; i++)
+    if (strcmp (names[i], "GNOME") == 0) {
+      in_list = TRUE;
+      break;
+    }
+  g_strfreev (names);
+
+  if ((!in_list) && (strcmp (gtk_csd_env, "0") == 0))
+    return TRUE;
+  else
+    return FALSE;
+}
+
 /**
  * hdy_header_bar_get_custom_title: (attributes org.gtk.Method.get_property=custom-title)
  * @self: a header bar
@@ -2628,6 +2654,8 @@ hdy_header_bar_set_show_close_button (HdyHeaderBar *self,
 
   priv = hdy_header_bar_get_instance_private (self);
 
+  if (disable_headerbar())
+    setting = FALSE;
   setting = setting != FALSE;
 
   if (priv->shows_wm_decorations == setting)
-- 
2.35.1