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viewporter: check for an existing viewport

This commit is contained in:
Kirill Primak 2023-07-07 12:47:28 +03:00
parent 77d5631e42
commit 4966857f21
1 changed files with 20 additions and 10 deletions
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30
types/wlr_viewporter.c
View File

@ -11,7 +11,8 @@ struct wlr_viewport {
struct wl_resource *resource;
struct wlr_surface *surface;
struct wl_listener surface_destroy;
struct wlr_addon addon;
struct wl_listener surface_commit;
};
@ -108,21 +109,25 @@ static void viewport_destroy(struct wlr_viewport *viewport) {
pending->viewport.has_dst = false;
pending->committed |= WLR_SURFACE_STATE_VIEWPORT;
wlr_addon_finish(&viewport->addon);
wl_resource_set_user_data(viewport->resource, NULL);
wl_list_remove(&viewport->surface_destroy.link);
wl_list_remove(&viewport->surface_commit.link);
free(viewport);
}
static void viewport_handle_resource_destroy(struct wl_resource *resource) {
struct wlr_viewport *viewport = viewport_from_resource(resource);
static void surface_addon_destroy(struct wlr_addon *addon) {
struct wlr_viewport *viewport = wl_container_of(addon, viewport, addon);
viewport_destroy(viewport);
}
static void viewport_handle_surface_destroy(struct wl_listener *listener,
void *data) {
struct wlr_viewport *viewport =
wl_container_of(listener, viewport, surface_destroy);
static const struct wlr_addon_interface surface_addon_impl = {
.name = "wlr_viewport",
.destroy = surface_addon_destroy,
};
static void viewport_handle_resource_destroy(struct wl_resource *resource) {
struct wlr_viewport *viewport = viewport_from_resource(resource);
viewport_destroy(viewport);
}
@ -163,6 +168,12 @@ static void viewporter_handle_get_viewport(struct wl_client *client,
struct wl_resource *surface_resource) {
struct wlr_surface *surface = wlr_surface_from_resource(surface_resource);
if (wlr_addon_find(&surface->addons, NULL, &surface_addon_impl) != NULL) {
wl_resource_post_error(resource, WP_VIEWPORTER_ERROR_VIEWPORT_EXISTS,
"wp_viewport for this surface already exists");
return;
}
struct wlr_viewport *viewport = calloc(1, sizeof(*viewport));
if (viewport == NULL) {
wl_client_post_no_memory(client);
@ -182,8 +193,7 @@ static void viewporter_handle_get_viewport(struct wl_client *client,
viewport->surface = surface;
viewport->surface_destroy.notify = viewport_handle_surface_destroy;
wl_signal_add(&surface->events.destroy, &viewport->surface_destroy);
wlr_addon_init(&viewport->addon, &surface->addons, NULL, &surface_addon_impl);
viewport->surface_commit.notify = viewport_handle_surface_commit;
wl_signal_add(&surface->events.commit, &viewport->surface_commit);