Files
Waybar/src/modules/hyprland
Alex 6294ed2520 fix(hyprland/language): apply the CSS class on the main thread
onEvent() runs on the Hyprland IPC listener thread and mutated the label's
style context (add/remove class) directly, racing the GTK main thread's
drawing and corrupting the heap (double free / corrupted double-linked list).
Follow the Submap pattern: onEvent only stores the layout under the mutex and
emits the dispatcher; update() swaps the CSS class on the main thread, tracking
the previously applied class.

Fixes #4665
2026-07-05 23:06:37 +02:00
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