src/utils.(c|h): Add get_desktop_session() helper function.

Signed-off-by: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>

1 files changed, 24 insertions, 0 deletions

diff --git a/src/utils.c b/src/utils.c
index 991f4ec..8c69a59 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -152,3 +152,27 @@ get_desktop_name (void)
 
   return desktop_name;
 }
+
+const char*
+get_desktop_session (void)
+{
+  static const char * desktop_session = NULL;
+  const char * xdg_desktop_session;
+
+  if (desktop_session == NULL)
+    {
+      xdg_desktop_session = g_getenv ("XDG_DESKTOP_SESSION");
+
+      if (xdg_desktop_session == NULL)
+        {
+          /* try DESKTOP_SESSION env var if XDG_DESKTOP_SESSION is unset */
+          desktop_session = g_getenv ("DESKTOP_SESSION");
+        }
+      else
+        {
+          desktop_session = xdg_desktop_session;
+        }
+    }
+
+  return desktop_session;
+}