src/cursor.c: cursor names: use absence of "grab" to trigger fallback

This is necessary because wlroots backported a patch containing
cursor name aliases to the 0.16 branch. That internal mapping
does not alias "grab" to "grabbing" because it is not technically
part of the cursor-names spec.

To keep the "grab" cursor working on systems with no cursor theme
available (or in an unusual location) change the trigger for our
internal cursor name aliasing to "grab".

See wlroots commit 1e345c74c3ca5d2575aa975d4d9af87cd0c7ba13
Alias existing cursor defaults to cursor-spec cursor names

for further details.

diff --git a/src/cursor.c b/src/cursor.c
index 31c058322bc11d30700a9efc65c03c46a0c53295..27bcbc1c5331c5ab564a4a99b3977ca88f676361 100644 (file)
--- a/src/cursor.c
+++ b/src/cursor.c
@@ -1090,7 +1090,7 @@ cursor_init(struct seat *seat)
        wlr_xcursor_manager_load(seat->xcursor_manager, 1);
 
        if (wlr_xcursor_manager_get_xcursor(seat->xcursor_manager,
-                       cursors_xdg[LAB_CURSOR_DEFAULT], 1)) {
+                       cursors_xdg[LAB_CURSOR_GRAB], 1)) {
                cursor_names = cursors_xdg;
        } else {
                wlr_log(WLR_INFO,