src/c/legacy-decorations.h

1/* SPDX-License-Identifier: BSD-3-Clause

2 * Legacy protocol ownership and copied mode facts, without presentation policy. */

3struct legacy_decoration {

4 struct wl_list link;

5 struct server *server;

6 struct wlr_server_decoration *native;

7 struct wl_listener mode,destroy;

8 uint64_t id,window;

9 uint32_t copied_mode;

10 bool published;

11};

12static void legacy_decoration_state(struct legacy_decoration *owner) {

13 uint64_t window=window_for_surface(owner->server,owner->native->surface);

14 if(owner->published && owner->window==window && owner->copied_mode==owner->native->mode) return;

15 owner->published=true;

16 owner->window=window;

17 owner->copied_mode=owner->native->mode;

18 EVENT(116,owner->id,window,owner->copied_mode,1);

19}

20static void refresh_decorations(struct server *s) {

21 struct legacy_decoration *owner;

22 wl_list_for_each(owner,&s->legacy_decorations,link) legacy_decoration_state(owner);

23}

24static void legacy_decoration_mode(struct wl_listener *listener,void *data) {

25 (void)data;

26 struct legacy_decoration *owner=wl_container_of(listener,owner,mode);

27 legacy_decoration_state(owner);

28}

29static void legacy_decoration_destroy(struct wl_listener *listener,void *data) {

30 (void)data;

31 struct legacy_decoration *owner=wl_container_of(listener,owner,destroy);

32 EVENT(117,owner->id);

33 wl_list_remove(&owner->mode.link); wl_list_remove(&owner->destroy.link);

34 wl_list_remove(&owner->link);

35 owner->server->decoration_count--;

36 atomic_fetch_sub(&bridge.objects,1);

37 free(owner);

38}

39static void new_legacy_decoration(struct wl_listener *listener,void *data) {

40 struct server *s=wl_container_of(listener,s,new_legacy_decoration);

41 struct wlr_server_decoration *native=data;

42 if(s->decoration_count>=256) { wl_resource_destroy(native->resource); return; }

43 struct legacy_decoration *owner=calloc(1,sizeof(*owner));

44 if(!owner) { wl_resource_post_no_memory(native->resource); return; }

45 owner->id=++s->next_id; owner->server=s; owner->native=native;

46 wl_list_insert(&s->legacy_decorations,&owner->link); s->decoration_count++;

47 listen(&native->events.mode,&owner->mode,legacy_decoration_mode);

48 listen(&native->events.destroy,&owner->destroy,legacy_decoration_destroy);

49 atomic_fetch_add(&bridge.objects,1);

50 legacy_decoration_state(owner);

51}