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xdg-foreign: clean up

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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.
master
Kirill Primak 3 months ago
parent 2c64f36e88
commit 6c8eabcecd
5 changed files with 53 additions and 77 deletions
Show Stats Download Patch File Download Diff File

2
include/wlr/types/wlr_xdg_foreign_registry.h
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@ -33,7 +33,7 @@ struct wlr_xdg_foreign_exported {
struct wl_list link; // wlr_xdg_foreign_registry.exported_surfaces
struct wlr_xdg_foreign_registry *registry;
struct wlr_surface *surface;
struct wlr_xdg_toplevel *toplevel;
char handle[WLR_XDG_FOREIGN_HANDLE_SIZE];

2
include/wlr/types/wlr_xdg_foreign_v1.h
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@ -50,7 +50,7 @@ struct wlr_xdg_imported_v1 {
struct wlr_xdg_imported_child_v1 {
struct wlr_xdg_imported_v1 *imported;
struct wlr_surface *surface;
struct wlr_xdg_toplevel *toplevel;
struct wl_list link; // wlr_xdg_imported_v1.children

2
include/wlr/types/wlr_xdg_foreign_v2.h
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@ -50,7 +50,7 @@ struct wlr_xdg_imported_v2 {
struct wlr_xdg_imported_child_v2 {
struct wlr_xdg_imported_v2 *imported;
struct wlr_surface *surface;
struct wlr_xdg_toplevel *toplevel;
struct wl_list link; // wlr_xdg_imported_v2.children

60
types/wlr_xdg_foreign_v1.c
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@ -1,4 +1,3 @@
#include <assert.h>
#include <string.h>
#include <stdlib.h>
@ -26,15 +25,17 @@ static void xdg_imported_handle_destroy(struct wl_client *client,
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_xdg_surface *xdg_surface = wlr_xdg_surface_try_from_wlr_surface(surface);
if (xdg_surface == NULL || xdg_surface->role != WLR_XDG_SURFACE_ROLE_TOPLEVEL) {
// Note: xdg_surface and xdg_toplevel are never inert, so if this fails,
// 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");
return NULL;
}
return xdg_surface->toplevel;
return toplevel;
}
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);
}
static void handle_xdg_toplevel_set_parent(
static void handle_child_xdg_toplevel_set_parent(
struct wl_listener *listener, void *data) {
struct wlr_xdg_imported_child_v1 *child =
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,
struct wl_resource *resource,
struct wl_resource *child_resource) {
struct wl_resource *resource, struct wl_resource *child_resource) {
struct wlr_xdg_imported_v1 *imported =
xdg_imported_from_resource(resource);
if (imported == NULL) {
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 =
verify_is_toplevel(resource, wlr_surface_child);
struct wlr_xdg_toplevel *toplevel = imported->exported->toplevel;
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) {
return;
}
struct wlr_xdg_surface *surface =
wlr_xdg_surface_try_from_wlr_surface(wlr_surface);
if (!surface->surface->mapped) {
if (!toplevel->base->surface->mapped) {
wlr_xdg_toplevel_set_parent(child_toplevel, NULL);
return;
}
struct wlr_xdg_imported_child_v1 *child;
wl_list_for_each(child, &imported->children, link) {
if (child->surface == wlr_surface_child) {
if (child->toplevel == child_toplevel) {
return;
}
}
@ -96,19 +92,19 @@ static void xdg_imported_handle_set_parent_of(struct wl_client *client,
wl_client_post_no_memory(client);
return;
}
child->surface = wlr_surface_child;
child->toplevel = child_toplevel;
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)) {
wl_resource_post_error(surface->toplevel->resource,
if (!wlr_xdg_toplevel_set_parent(child_toplevel, toplevel)) {
wl_resource_post_error(toplevel->resource,
XDG_TOPLEVEL_ERROR_INVALID_PARENT,
"a toplevel cannot be a parent of itself or its ancestor");
free(child);
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.set_parent, &child->xdg_toplevel_set_parent);
@ -152,10 +148,7 @@ static void destroy_imported(struct wlr_xdg_imported_v1 *imported) {
imported->exported = NULL;
struct wlr_xdg_imported_child_v1 *child, *child_tmp;
wl_list_for_each_safe(child, child_tmp, &imported->children, link) {
struct wlr_xdg_surface *xdg_child =
wlr_xdg_surface_try_from_wlr_surface(child->surface);
assert(xdg_child != NULL);
wlr_xdg_toplevel_set_parent(xdg_child->toplevel, NULL);
wlr_xdg_toplevel_set_parent(child->toplevel, NULL);
}
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,
struct wl_resource *client_resource,
uint32_t id,
struct wl_resource *surface_resource) {
struct wl_resource *client_resource, uint32_t id, struct wl_resource *surface_resource) {
struct wlr_xdg_foreign_v1 *foreign =
xdg_foreign_from_exporter_resource(client_resource);
struct wlr_surface *surface = wlr_surface_from_resource(surface_resource);
struct wlr_xdg_toplevel *xdg_toplevel =
verify_is_toplevel(client_resource, surface);
struct wlr_xdg_toplevel *xdg_toplevel = get_toplevel(client_resource, surface);
if (!xdg_toplevel) {
return;
}
@ -219,7 +209,7 @@ static void xdg_exporter_handle_export(struct wl_client *wl_client,
return;
}
exported->base.surface = surface;
exported->base.toplevel = xdg_toplevel;
exported->resource = wl_resource_create(wl_client, &zxdg_exported_v1_interface,
wl_resource_get_version(client_resource), id);
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,
struct wl_resource *client_resource,
uint32_t id,
const char *handle) {
struct wl_resource *client_resource, uint32_t id, const char *handle) {
struct wlr_xdg_foreign_v1 *foreign =
xdg_foreign_from_importer_resource(client_resource);

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

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