xdg-foreign: clean up

This commit removes extra wlr_xdg_toplevel_set_parent() calls,
simplifies wlr_surface->wlr_xdg_toplevel conversion logic, makes related
structures store wlr_xdg_toplevel objects directly instead of
wlr_surface objects, and improves the code style.
This commit is contained in:
Kirill Primak 2024-08-14 15:49:09 +03:00
parent 2c64f36e88
commit 6c8eabcecd
5 changed files with 54 additions and 78 deletions

View File

@ -33,7 +33,7 @@ struct wlr_xdg_foreign_exported {
struct wl_list link; // wlr_xdg_foreign_registry.exported_surfaces struct wl_list link; // wlr_xdg_foreign_registry.exported_surfaces
struct wlr_xdg_foreign_registry *registry; struct wlr_xdg_foreign_registry *registry;
struct wlr_surface *surface; struct wlr_xdg_toplevel *toplevel;
char handle[WLR_XDG_FOREIGN_HANDLE_SIZE]; char handle[WLR_XDG_FOREIGN_HANDLE_SIZE];

View File

@ -50,7 +50,7 @@ struct wlr_xdg_imported_v1 {
struct wlr_xdg_imported_child_v1 { struct wlr_xdg_imported_child_v1 {
struct wlr_xdg_imported_v1 *imported; struct wlr_xdg_imported_v1 *imported;
struct wlr_surface *surface; struct wlr_xdg_toplevel *toplevel;
struct wl_list link; // wlr_xdg_imported_v1.children struct wl_list link; // wlr_xdg_imported_v1.children

View File

@ -50,7 +50,7 @@ struct wlr_xdg_imported_v2 {
struct wlr_xdg_imported_child_v2 { struct wlr_xdg_imported_child_v2 {
struct wlr_xdg_imported_v2 *imported; struct wlr_xdg_imported_v2 *imported;
struct wlr_surface *surface; struct wlr_xdg_toplevel *toplevel;
struct wl_list link; // wlr_xdg_imported_v2.children struct wl_list link; // wlr_xdg_imported_v2.children

View File

@ -1,4 +1,3 @@
#include <assert.h> #include <assert.h>
#include <string.h> #include <string.h>
#include <stdlib.h> #include <stdlib.h>
@ -26,15 +25,17 @@ static void xdg_imported_handle_destroy(struct wl_client *client,
wl_resource_destroy(resource); wl_resource_destroy(resource);
} }
static struct wlr_xdg_toplevel *verify_is_toplevel(struct wl_resource *resource, static struct wlr_xdg_toplevel *get_toplevel(struct wl_resource *resource,
struct wlr_surface *surface) { struct wlr_surface *surface) {
struct wlr_xdg_surface *xdg_surface = wlr_xdg_surface_try_from_wlr_surface(surface); // Note: xdg_surface and xdg_toplevel are never inert, so if this fails,
if (xdg_surface == NULL || xdg_surface->role != WLR_XDG_SURFACE_ROLE_TOPLEVEL) { // the surface isn't a toplevel
struct wlr_xdg_toplevel *toplevel = wlr_xdg_toplevel_try_from_wlr_surface(surface);
if (toplevel == NULL) {
wl_resource_post_error(resource, -1, "surface must be an xdg_toplevel"); wl_resource_post_error(resource, -1, "surface must be an xdg_toplevel");
return NULL; return NULL;
} }
return xdg_surface->toplevel; return toplevel;
} }
static void destroy_imported_child(struct wlr_xdg_imported_child_v1 *child) { static void destroy_imported_child(struct wlr_xdg_imported_child_v1 *child) {
@ -51,7 +52,7 @@ static void handle_child_xdg_toplevel_destroy(
destroy_imported_child(child); destroy_imported_child(child);
} }
static void handle_xdg_toplevel_set_parent( static void handle_child_xdg_toplevel_set_parent(
struct wl_listener *listener, void *data) { struct wl_listener *listener, void *data) {
struct wlr_xdg_imported_child_v1 *child = struct wlr_xdg_imported_child_v1 *child =
wl_container_of(listener, child, xdg_toplevel_set_parent); wl_container_of(listener, child, xdg_toplevel_set_parent);
@ -59,34 +60,29 @@ static void handle_xdg_toplevel_set_parent(
} }
static void xdg_imported_handle_set_parent_of(struct wl_client *client, static void xdg_imported_handle_set_parent_of(struct wl_client *client,
struct wl_resource *resource, struct wl_resource *resource, struct wl_resource *child_resource) {
struct wl_resource *child_resource) {
struct wlr_xdg_imported_v1 *imported = struct wlr_xdg_imported_v1 *imported =
xdg_imported_from_resource(resource); xdg_imported_from_resource(resource);
if (imported == NULL) { if (imported == NULL) {
return; return;
} }
struct wlr_surface *wlr_surface = imported->exported->surface;
struct wlr_surface *wlr_surface_child =
wlr_surface_from_resource(child_resource);
struct wlr_xdg_toplevel *child_toplevel = struct wlr_xdg_toplevel *toplevel = imported->exported->toplevel;
verify_is_toplevel(resource, wlr_surface_child); struct wlr_surface *child_surface = wlr_surface_from_resource(child_resource);
struct wlr_xdg_toplevel *child_toplevel = get_toplevel(resource, child_surface);
if (!child_toplevel) { if (!child_toplevel) {
return; return;
} }
struct wlr_xdg_surface *surface = if (!toplevel->base->surface->mapped) {
wlr_xdg_surface_try_from_wlr_surface(wlr_surface);
if (!surface->surface->mapped) {
wlr_xdg_toplevel_set_parent(child_toplevel, NULL); wlr_xdg_toplevel_set_parent(child_toplevel, NULL);
return; return;
} }
struct wlr_xdg_imported_child_v1 *child; struct wlr_xdg_imported_child_v1 *child;
wl_list_for_each(child, &imported->children, link) { wl_list_for_each(child, &imported->children, link) {
if (child->surface == wlr_surface_child) { if (child->toplevel == child_toplevel) {
return; return;
} }
} }
@ -96,19 +92,19 @@ static void xdg_imported_handle_set_parent_of(struct wl_client *client,
wl_client_post_no_memory(client); wl_client_post_no_memory(client);
return; return;
} }
child->surface = wlr_surface_child;
child->xdg_toplevel_destroy.notify = handle_child_xdg_toplevel_destroy;
child->xdg_toplevel_set_parent.notify = handle_xdg_toplevel_set_parent;
if (!wlr_xdg_toplevel_set_parent(child_toplevel, surface->toplevel)) { child->toplevel = child_toplevel;
wl_resource_post_error(surface->toplevel->resource, child->xdg_toplevel_destroy.notify = handle_child_xdg_toplevel_destroy;
child->xdg_toplevel_set_parent.notify = handle_child_xdg_toplevel_set_parent;
if (!wlr_xdg_toplevel_set_parent(child_toplevel, toplevel)) {
wl_resource_post_error(toplevel->resource,
XDG_TOPLEVEL_ERROR_INVALID_PARENT, XDG_TOPLEVEL_ERROR_INVALID_PARENT,
"a toplevel cannot be a parent of itself or its ancestor"); "a toplevel cannot be a parent of itself or its ancestor");
free(child); free(child);
return; return;
} }
wlr_xdg_toplevel_set_parent(child_toplevel, surface->toplevel);
wl_signal_add(&child_toplevel->events.destroy, &child->xdg_toplevel_destroy); wl_signal_add(&child_toplevel->events.destroy, &child->xdg_toplevel_destroy);
wl_signal_add(&child_toplevel->events.set_parent, &child->xdg_toplevel_set_parent); wl_signal_add(&child_toplevel->events.set_parent, &child->xdg_toplevel_set_parent);
@ -152,10 +148,7 @@ static void destroy_imported(struct wlr_xdg_imported_v1 *imported) {
imported->exported = NULL; imported->exported = NULL;
struct wlr_xdg_imported_child_v1 *child, *child_tmp; struct wlr_xdg_imported_child_v1 *child, *child_tmp;
wl_list_for_each_safe(child, child_tmp, &imported->children, link) { wl_list_for_each_safe(child, child_tmp, &imported->children, link) {
struct wlr_xdg_surface *xdg_child = wlr_xdg_toplevel_set_parent(child->toplevel, NULL);
wlr_xdg_surface_try_from_wlr_surface(child->surface);
assert(xdg_child != NULL);
wlr_xdg_toplevel_set_parent(xdg_child->toplevel, NULL);
} }
wl_list_remove(&imported->exported_destroyed.link); wl_list_remove(&imported->exported_destroyed.link);
@ -194,15 +187,12 @@ static void handle_xdg_toplevel_destroy(struct wl_listener *listener, void *data
} }
static void xdg_exporter_handle_export(struct wl_client *wl_client, static void xdg_exporter_handle_export(struct wl_client *wl_client,
struct wl_resource *client_resource, struct wl_resource *client_resource, uint32_t id, struct wl_resource *surface_resource) {
uint32_t id,
struct wl_resource *surface_resource) {
struct wlr_xdg_foreign_v1 *foreign = struct wlr_xdg_foreign_v1 *foreign =
xdg_foreign_from_exporter_resource(client_resource); xdg_foreign_from_exporter_resource(client_resource);
struct wlr_surface *surface = wlr_surface_from_resource(surface_resource); struct wlr_surface *surface = wlr_surface_from_resource(surface_resource);
struct wlr_xdg_toplevel *xdg_toplevel = struct wlr_xdg_toplevel *xdg_toplevel = get_toplevel(client_resource, surface);
verify_is_toplevel(client_resource, surface);
if (!xdg_toplevel) { if (!xdg_toplevel) {
return; return;
} }
@ -219,7 +209,7 @@ static void xdg_exporter_handle_export(struct wl_client *wl_client,
return; return;
} }
exported->base.surface = surface; exported->base.toplevel = xdg_toplevel;
exported->resource = wl_resource_create(wl_client, &zxdg_exported_v1_interface, exported->resource = wl_resource_create(wl_client, &zxdg_exported_v1_interface,
wl_resource_get_version(client_resource), id); wl_resource_get_version(client_resource), id);
if (exported->resource == NULL) { if (exported->resource == NULL) {
@ -291,9 +281,7 @@ static void xdg_imported_handle_exported_destroy(struct wl_listener *listener,
} }
static void xdg_importer_handle_import(struct wl_client *wl_client, static void xdg_importer_handle_import(struct wl_client *wl_client,
struct wl_resource *client_resource, struct wl_resource *client_resource, uint32_t id, const char *handle) {
uint32_t id,
const char *handle) {
struct wlr_xdg_foreign_v1 *foreign = struct wlr_xdg_foreign_v1 *foreign =
xdg_foreign_from_importer_resource(client_resource); xdg_foreign_from_importer_resource(client_resource);

View File

@ -26,20 +26,20 @@ static void xdg_imported_handle_destroy(struct wl_client *client,
wl_resource_destroy(resource); wl_resource_destroy(resource);
} }
static struct wlr_xdg_toplevel *verify_is_toplevel(struct wl_resource *resource, static struct wlr_xdg_toplevel *get_toplevel(struct wl_resource *resource,
struct wlr_surface *surface) { struct wlr_surface *surface) {
// Note: the error codes are the same for zxdg_exporter_v2 and // Note: xdg_surface and xdg_toplevel are never inert, so if this fails,
// zxdg_importer_v2 // the surface isn't a toplevel
struct wlr_xdg_toplevel *toplevel = wlr_xdg_toplevel_try_from_wlr_surface(surface);
struct wlr_xdg_surface *xdg_surface = wlr_xdg_surface_try_from_wlr_surface(surface); if (toplevel == NULL) {
if (xdg_surface == NULL || xdg_surface->role != WLR_XDG_SURFACE_ROLE_TOPLEVEL) { // Note: the error codes are the same for zxdg_exporter_v2 and
wl_resource_post_error(resource, // zxdg_importer_v2
ZXDG_EXPORTER_V2_ERROR_INVALID_SURFACE, wl_resource_post_error(resource, ZXDG_EXPORTER_V2_ERROR_INVALID_SURFACE,
"surface must be an xdg_toplevel"); "surface must be an xdg_toplevel");
return NULL; return NULL;
} }
return xdg_surface->toplevel; return toplevel;
} }
static void destroy_imported_child(struct wlr_xdg_imported_child_v2 *child) { static void destroy_imported_child(struct wlr_xdg_imported_child_v2 *child) {
@ -56,7 +56,7 @@ static void handle_child_xdg_toplevel_destroy(
destroy_imported_child(child); destroy_imported_child(child);
} }
static void handle_xdg_toplevel_set_parent( static void handle_child_xdg_toplevel_set_parent(
struct wl_listener *listener, void *data) { struct wl_listener *listener, void *data) {
struct wlr_xdg_imported_child_v2 *child = struct wlr_xdg_imported_child_v2 *child =
wl_container_of(listener, child, xdg_toplevel_set_parent); wl_container_of(listener, child, xdg_toplevel_set_parent);
@ -64,32 +64,29 @@ static void handle_xdg_toplevel_set_parent(
} }
static void xdg_imported_handle_set_parent_of(struct wl_client *client, static void xdg_imported_handle_set_parent_of(struct wl_client *client,
struct wl_resource *resource, struct wl_resource *resource, struct wl_resource *child_resource) {
struct wl_resource *child_resource) {
struct wlr_xdg_imported_v2 *imported = struct wlr_xdg_imported_v2 *imported =
xdg_imported_from_resource(resource); xdg_imported_from_resource(resource);
if (imported == NULL) { if (imported == NULL) {
return; return;
} }
struct wlr_surface *wlr_surface = imported->exported->surface;
struct wlr_surface *wlr_surface_child =
wlr_surface_from_resource(child_resource);
struct wlr_xdg_surface *surface = wlr_xdg_surface_try_from_wlr_surface(wlr_surface); struct wlr_xdg_toplevel *toplevel = imported->exported->toplevel;
struct wlr_xdg_toplevel *child_toplevel = struct wlr_surface *child_surface = wlr_surface_from_resource(child_resource);
verify_is_toplevel(resource, wlr_surface_child);
struct wlr_xdg_toplevel *child_toplevel = get_toplevel(resource, child_surface);
if (!child_toplevel) { if (!child_toplevel) {
return; return;
} }
if (!surface->surface->mapped) { if (!toplevel->base->surface->mapped) {
wlr_xdg_toplevel_set_parent(child_toplevel, NULL); wlr_xdg_toplevel_set_parent(child_toplevel, NULL);
return; return;
} }
struct wlr_xdg_imported_child_v2 *child; struct wlr_xdg_imported_child_v2 *child;
wl_list_for_each(child, &imported->children, link) { wl_list_for_each(child, &imported->children, link) {
if (child->surface == wlr_surface_child) { if (child->toplevel == child_toplevel) {
return; return;
} }
} }
@ -99,19 +96,18 @@ static void xdg_imported_handle_set_parent_of(struct wl_client *client,
wl_client_post_no_memory(client); wl_client_post_no_memory(client);
return; return;
} }
child->surface = wlr_surface_child; child->toplevel = child_toplevel;
child->xdg_toplevel_destroy.notify = handle_child_xdg_toplevel_destroy; child->xdg_toplevel_destroy.notify = handle_child_xdg_toplevel_destroy;
child->xdg_toplevel_set_parent.notify = handle_xdg_toplevel_set_parent; child->xdg_toplevel_set_parent.notify = handle_child_xdg_toplevel_set_parent;
if (!wlr_xdg_toplevel_set_parent(child_toplevel, surface->toplevel)) { if (!wlr_xdg_toplevel_set_parent(child_toplevel, toplevel)) {
wl_resource_post_error(surface->toplevel->resource, wl_resource_post_error(toplevel->resource,
XDG_TOPLEVEL_ERROR_INVALID_PARENT, XDG_TOPLEVEL_ERROR_INVALID_PARENT,
"a toplevel cannot be a parent of itself or its ancestor"); "a toplevel cannot be a parent of itself or its ancestor");
free(child); free(child);
return; return;
} }
wlr_xdg_toplevel_set_parent(child_toplevel, surface->toplevel);
wl_signal_add(&child_toplevel->events.destroy, &child->xdg_toplevel_destroy); wl_signal_add(&child_toplevel->events.destroy, &child->xdg_toplevel_destroy);
wl_signal_add(&child_toplevel->events.set_parent, &child->xdg_toplevel_set_parent); wl_signal_add(&child_toplevel->events.set_parent, &child->xdg_toplevel_set_parent);
@ -155,10 +151,7 @@ static void destroy_imported(struct wlr_xdg_imported_v2 *imported) {
imported->exported = NULL; imported->exported = NULL;
struct wlr_xdg_imported_child_v2 *child, *child_tmp; struct wlr_xdg_imported_child_v2 *child, *child_tmp;
wl_list_for_each_safe(child, child_tmp, &imported->children, link) { wl_list_for_each_safe(child, child_tmp, &imported->children, link) {
struct wlr_xdg_surface *xdg_child = wlr_xdg_toplevel_set_parent(child->toplevel, NULL);
wlr_xdg_surface_try_from_wlr_surface(child->surface);
assert(xdg_child != NULL);
wlr_xdg_toplevel_set_parent(xdg_child->toplevel, NULL);
} }
wl_list_remove(&imported->exported_destroyed.link); wl_list_remove(&imported->exported_destroyed.link);
@ -197,15 +190,12 @@ static void handle_xdg_toplevel_destroy(struct wl_listener *listener, void *data
} }
static void xdg_exporter_handle_export(struct wl_client *wl_client, static void xdg_exporter_handle_export(struct wl_client *wl_client,
struct wl_resource *client_resource, struct wl_resource *client_resource, uint32_t id, struct wl_resource *surface_resource) {
uint32_t id,
struct wl_resource *surface_resource) {
struct wlr_xdg_foreign_v2 *foreign = struct wlr_xdg_foreign_v2 *foreign =
xdg_foreign_from_exporter_resource(client_resource); xdg_foreign_from_exporter_resource(client_resource);
struct wlr_surface *surface = wlr_surface_from_resource(surface_resource); struct wlr_surface *surface = wlr_surface_from_resource(surface_resource);
struct wlr_xdg_toplevel *xdg_toplevel = struct wlr_xdg_toplevel *xdg_toplevel = get_toplevel(client_resource, surface);
verify_is_toplevel(client_resource, surface);
if (!xdg_toplevel) { if (!xdg_toplevel) {
return; return;
} }
@ -222,7 +212,7 @@ static void xdg_exporter_handle_export(struct wl_client *wl_client,
return; return;
} }
exported->base.surface = surface; exported->base.toplevel = xdg_toplevel;
exported->resource = wl_resource_create(wl_client, &zxdg_exported_v2_interface, exported->resource = wl_resource_create(wl_client, &zxdg_exported_v2_interface,
wl_resource_get_version(client_resource), id); wl_resource_get_version(client_resource), id);
if (exported->resource == NULL) { if (exported->resource == NULL) {
@ -294,9 +284,7 @@ static void xdg_imported_handle_exported_destroy(struct wl_listener *listener,
} }
static void xdg_importer_handle_import(struct wl_client *wl_client, static void xdg_importer_handle_import(struct wl_client *wl_client,
struct wl_resource *client_resource, struct wl_resource *client_resource, uint32_t id, const char *handle) {
uint32_t id,
const char *handle) {
struct wlr_xdg_foreign_v2 *foreign = struct wlr_xdg_foreign_v2 *foreign =
xdg_foreign_from_importer_resource(client_resource); xdg_foreign_from_importer_resource(client_resource);