20176d0395
The current implementation of the XdgSurface v6 protocol does not check if the window changed before calling meta_window_wayland_move_resize(). The problem with this approach is that calling this function is a costly operation since we enter the compositor side. In GNOME Shell case, it is in JavaScript, which triggers a GJS trampoline. Calling this function on every mouse movement is naturally as terrible as it could be - and is exactly what happens now. This commit adds the necessary checks to only call move_resize() when the window actually changed, or when it needs to be updated. https://bugzilla.gnome.org/show_bug.cgi?id=780292 Issue: #78