Sort dock clients by class and instance

This is similar to #3820 but does not use qsort but an insertion sort in
con_attach.

Since each bar block automatically gets its own incremental bar id,
bards end up being sorted according to their definition order in the
config file.

For i3bar, the WM_CLASS is modified to include an instance name which
depends on the bar_id. This could be useful for other reason, e.g. users
targeting a specific bar instance.

Fixes #3491

1 files changed, 0 insertions, 13 deletions

diff --git a/i3bar/src/xcb.c b/i3bar/src/xcb.c
index ae447fbc..ecb41a60 100644
--- a/i3bar/src/xcb.c
+++ b/i3bar/src/xcb.c
@@ -685,19 +685,6 @@ static void handle_visibility_notify(xcb_visibility_notify_event_t *event) {
     }
 }
 
-static int strcasecmp_nullable(const char *a, const char *b) {
-    if (a == b) {
-        return 0;
-    }
-    if (a == NULL) {
-        return -1;
-    }
-    if (b == NULL) {
-        return 1;
-    }
-    return strcasecmp(a, b);
-}
-
 /*
  * Comparison function to sort trayclients in ascending alphanumeric order
  * according to their class.