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surface: add cache event

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This commit is contained in:
Simon Ser 2021-06-18 18:25:27 +02:00
parent 3fdf8cf07e
commit 0f9ecac3cb
2 changed files with 9 additions and 0 deletions
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6
include/wlr/types/wlr_surface.h
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@ -135,6 +135,12 @@ struct wlr_surface {
struct {
struct wl_signal commit;
/**
* Emitted when the pending state is cached.
*
* Can be used by surface extensions to tie their own state to commits.
*/
struct wl_signal cache; // struct wlr_surface_state *
struct wl_signal new_subsurface;
struct wl_signal destroy;
} events;

3
types/wlr_surface.c
View file

@ -417,6 +417,8 @@ static void surface_cache_pending(struct wlr_surface *surface) {
wl_list_insert(surface->cached.prev, &cached->cached_state_link);
surface->pending.seq++;
wlr_signal_emit_safe(&surface->events.cache, cached);
}
static void surface_commit_state(struct wlr_surface *surface,
@ -746,6 +748,7 @@ struct wlr_surface *surface_create(struct wl_client *client,
surface->pending.seq = 1;
wl_signal_init(&surface->events.commit);
wl_signal_init(&surface->events.cache);
wl_signal_init(&surface->events.destroy);
wl_signal_init(&surface->events.new_subsurface);
wl_list_init(&surface->subsurfaces_above);