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layer-shell-v1: convert to try_from 

References: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/884
This commit is contained in:
Simon Ser 2023-02-01 20:13:53 +01:00
parent 49cb85ad72
commit f9bd416d41
2 changed files with 14 additions and 18 deletions
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13
include/wlr/types/wlr_layer_shell_v1.h
View File

@ -139,18 +139,13 @@ uint32_t wlr_layer_surface_v1_configure(struct wlr_layer_surface_v1 *surface,
*/
void wlr_layer_surface_v1_destroy(struct wlr_layer_surface_v1 *surface);
/**
* Returns true if the surface has the layer surface role.
*/
bool wlr_surface_is_layer_surface(struct wlr_surface *surface);
/**
* Get a struct wlr_layer_surface from a struct wlr_surface.
* Asserts that the surface has the layer surface role.
* May return NULL even if the surface has the layer surface role if the
* corresponding layer surface has been destroyed.
*
* Returns NULL if the surface doesn't have the layer surface role or if
* the layer surface has been destroyed.
*/
struct wlr_layer_surface_v1 *wlr_layer_surface_v1_from_wlr_surface(
struct wlr_layer_surface_v1 *wlr_layer_surface_v1_try_from_wlr_surface(
struct wlr_surface *surface);
/**

19
types/wlr_layer_shell_v1.c
View File

@ -38,13 +38,11 @@ struct wlr_layer_surface_v1 *wlr_layer_surface_v1_from_resource(
static const struct wlr_surface_role layer_surface_role;
bool wlr_surface_is_layer_surface(struct wlr_surface *surface) {
return surface->role == &layer_surface_role;
}
struct wlr_layer_surface_v1 *wlr_layer_surface_v1_from_wlr_surface(
struct wlr_layer_surface_v1 *wlr_layer_surface_v1_try_from_wlr_surface(
struct wlr_surface *surface) {
assert(wlr_surface_is_layer_surface(surface));
if (surface->role != &layer_surface_role) {
return NULL;
}
return (struct wlr_layer_surface_v1 *)surface->role_data;
}
@ -314,7 +312,8 @@ void wlr_layer_surface_v1_destroy(struct wlr_layer_surface_v1 *surface) {
static void layer_surface_role_commit(struct wlr_surface *wlr_surface) {
struct wlr_layer_surface_v1 *surface =
wlr_layer_surface_v1_from_wlr_surface(wlr_surface);
wlr_layer_surface_v1_try_from_wlr_surface(wlr_surface);
assert(surface != NULL);
const uint32_t horiz = ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT |
ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT;
@ -366,7 +365,8 @@ static void layer_surface_role_commit(struct wlr_surface *wlr_surface) {
static void layer_surface_role_precommit(struct wlr_surface *wlr_surface,
const struct wlr_surface_state *state) {
struct wlr_layer_surface_v1 *surface =
wlr_layer_surface_v1_from_wlr_surface(wlr_surface);
wlr_layer_surface_v1_try_from_wlr_surface(wlr_surface);
assert(surface != NULL);
if (state->committed & WLR_SURFACE_STATE_BUFFER && state->buffer == NULL) {
// This is a NULL commit
@ -378,7 +378,8 @@ static void layer_surface_role_precommit(struct wlr_surface *wlr_surface,
static void layer_surface_role_destroy(struct wlr_surface *wlr_surface) {
struct wlr_layer_surface_v1 *surface =
wlr_layer_surface_v1_from_wlr_surface(wlr_surface);
wlr_layer_surface_v1_try_from_wlr_surface(wlr_surface);
assert(surface != NULL);
if (surface->configured && surface->mapped) {
layer_surface_unmap(surface);