[libwnck/wip/muktupavels/issue-154: 2/4] xutils: move XRes code to separate function

[Alberts Muktupāvels <muktupavels src gnome org>]

commit f6b973b1f15ac1d8b8203972195d9a1765c75ba2
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Fri Sep 30 18:07:55 2022 +0300

    xutils: move XRes code to separate function

 libwnck/xutils.c | 28 ++++++++++++++++++++--------
 1 file changed, 20 insertions(+), 8 deletions(-)
---
diff --git a/libwnck/xutils.c b/libwnck/xutils.c
index 60ae7b25..d120ff16 100644
--- a/libwnck/xutils.c
+++ b/libwnck/xutils.c
@@ -1145,13 +1145,12 @@ _wnck_get_session_id (Screen *screen,
                                            _wnck_atom_get ("SM_CLIENT_ID"));
 }
 
-int
-_wnck_get_pid (Screen *screen,
-               Window  xwindow)
+#ifdef HAVE_XRES
+static int
+xres_get_pid (Screen *screen,
+              Window  xwindow)
 {
   int pid = -1;
-
-#ifdef HAVE_XRES
   XResClientIdSpec client_spec;
   long client_id_count = 0;
   XResClientIdValue *client_ids = NULL;
@@ -1172,10 +1171,23 @@ _wnck_get_pid (Screen *screen,
         }
 
       XResClientIdsDestroy (client_id_count, client_ids);
-
-      if (pid != -1)
-        return pid;
     }
+
+  return pid;
+}
+#endif
+
+int
+_wnck_get_pid (Screen *screen,
+               Window  xwindow)
+{
+  int pid = -1;
+
+#ifdef HAVE_XRES
+  pid = xres_get_pid (screen, xwindow);
+
+  if (pid != -1)
+    return pid;
 #endif
 
   if (!_wnck_get_cardinal (screen, xwindow,