Kirill Primak
3 years ago
committed by
Simon Ser
parent
6cdf843a8c
commit
b6f43ab2e1
@ -0,0 +1,37 @@
|
|||||||
|
/*
|
||||||
|
* This an unstable interface of wlroots. No guarantees are made regarding the
|
||||||
|
* future consistency of this API.
|
||||||
|
*/
|
||||||
|
#ifndef WLR_USE_UNSTABLE
|
||||||
|
#error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#ifndef WLR_TYPES_WLR_SUBCOMPOSITOR_H
|
||||||
|
#define WLR_TYPES_WLR_SUBCOMPOSITOR_H
|
||||||
|
|
||||||
|
#include <wayland-server-core.h>
|
||||||
|
|
||||||
|
struct wlr_surface;
|
||||||
|
|
||||||
|
struct wlr_subcompositor {
|
||||||
|
struct wl_global *global;
|
||||||
|
|
||||||
|
struct wl_listener display_destroy;
|
||||||
|
|
||||||
|
struct {
|
||||||
|
struct wl_signal destroy;
|
||||||
|
} events;
|
||||||
|
};
|
||||||
|
|
||||||
|
bool wlr_surface_is_subsurface(struct wlr_surface *surface);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Get a subsurface from a surface. Can return NULL if the subsurface has been
|
||||||
|
* destroyed.
|
||||||
|
*/
|
||||||
|
struct wlr_subsurface *wlr_subsurface_from_wlr_surface(
|
||||||
|
struct wlr_surface *surface);
|
||||||
|
|
||||||
|
struct wlr_subcompositor *wlr_subcompositor_create(struct wl_display *display);
|
||||||
|
|
||||||
|
#endif
|
||||||
@ -0,0 +1,120 @@
|
|||||||
|
#include <assert.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <wayland-server-core.h>
|
||||||
|
#include <wlr/types/wlr_subcompositor.h>
|
||||||
|
#include <wlr/types/wlr_surface.h>
|
||||||
|
#include "types/wlr_region.h"
|
||||||
|
#include "types/wlr_surface.h"
|
||||||
|
#include "util/signal.h"
|
||||||
|
|
||||||
|
#define SUBCOMPOSITOR_VERSION 1
|
||||||
|
|
||||||
|
extern const struct wlr_surface_role subsurface_role;
|
||||||
|
|
||||||
|
bool wlr_surface_is_subsurface(struct wlr_surface *surface) {
|
||||||
|
return surface->role == &subsurface_role;
|
||||||
|
}
|
||||||
|
|
||||||
|
struct wlr_subsurface *wlr_subsurface_from_wlr_surface(
|
||||||
|
struct wlr_surface *surface) {
|
||||||
|
assert(wlr_surface_is_subsurface(surface));
|
||||||
|
return (struct wlr_subsurface *)surface->role_data;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void subcompositor_handle_destroy(struct wl_client *client,
|
||||||
|
struct wl_resource *resource) {
|
||||||
|
wl_resource_destroy(resource);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void subcompositor_handle_get_subsurface(struct wl_client *client,
|
||||||
|
struct wl_resource *resource, uint32_t id,
|
||||||
|
struct wl_resource *surface_resource,
|
||||||
|
struct wl_resource *parent_resource) {
|
||||||
|
struct wlr_surface *surface = wlr_surface_from_resource(surface_resource);
|
||||||
|
struct wlr_surface *parent = wlr_surface_from_resource(parent_resource);
|
||||||
|
|
||||||
|
static const char msg[] = "get_subsurface: wl_subsurface@";
|
||||||
|
|
||||||
|
if (surface == parent) {
|
||||||
|
wl_resource_post_error(resource,
|
||||||
|
WL_SUBCOMPOSITOR_ERROR_BAD_SURFACE,
|
||||||
|
"%s%" PRIu32 ": wl_surface@%" PRIu32 " cannot be its own parent",
|
||||||
|
msg, id, wl_resource_get_id(surface_resource));
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (wlr_surface_is_subsurface(surface) &&
|
||||||
|
wlr_subsurface_from_wlr_surface(surface) != NULL) {
|
||||||
|
wl_resource_post_error(resource,
|
||||||
|
WL_SUBCOMPOSITOR_ERROR_BAD_SURFACE,
|
||||||
|
"%s%" PRIu32 ": wl_surface@%" PRIu32 " is already a sub-surface",
|
||||||
|
msg, id, wl_resource_get_id(surface_resource));
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (wlr_surface_get_root_surface(parent) == surface) {
|
||||||
|
wl_resource_post_error(resource,
|
||||||
|
WL_SUBCOMPOSITOR_ERROR_BAD_SURFACE,
|
||||||
|
"%s%" PRIu32 ": wl_surface@%" PRIu32 " is an ancestor of parent",
|
||||||
|
msg, id, wl_resource_get_id(surface_resource));
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!wlr_surface_set_role(surface, &subsurface_role, NULL,
|
||||||
|
resource, WL_SUBCOMPOSITOR_ERROR_BAD_SURFACE)) {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
subsurface_create(surface, parent, wl_resource_get_version(resource), id);
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct wl_subcompositor_interface subcompositor_impl = {
|
||||||
|
.destroy = subcompositor_handle_destroy,
|
||||||
|
.get_subsurface = subcompositor_handle_get_subsurface,
|
||||||
|
};
|
||||||
|
|
||||||
|
static void subcompositor_bind(struct wl_client *client, void *data,
|
||||||
|
uint32_t version, uint32_t id) {
|
||||||
|
struct wlr_subcompositor *subcompositor = data;
|
||||||
|
struct wl_resource *resource =
|
||||||
|
wl_resource_create(client, &wl_subcompositor_interface, 1, id);
|
||||||
|
if (resource == NULL) {
|
||||||
|
wl_client_post_no_memory(client);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
wl_resource_set_implementation(resource, &subcompositor_impl,
|
||||||
|
subcompositor, NULL);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void subcompositor_handle_display_destroy(
|
||||||
|
struct wl_listener *listener, void *data) {
|
||||||
|
struct wlr_subcompositor *subcompositor =
|
||||||
|
wl_container_of(listener, subcompositor, display_destroy);
|
||||||
|
wlr_signal_emit_safe(&subcompositor->events.destroy, NULL);
|
||||||
|
wl_list_remove(&subcompositor->display_destroy.link);
|
||||||
|
wl_global_destroy(subcompositor->global);
|
||||||
|
free(subcompositor);
|
||||||
|
}
|
||||||
|
|
||||||
|
struct wlr_subcompositor *wlr_subcompositor_create(struct wl_display *display) {
|
||||||
|
struct wlr_subcompositor *subcompositor =
|
||||||
|
calloc(1, sizeof(*subcompositor));
|
||||||
|
if (!subcompositor) {
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
subcompositor->global = wl_global_create(display,
|
||||||
|
&wl_subcompositor_interface, SUBCOMPOSITOR_VERSION,
|
||||||
|
subcompositor, subcompositor_bind);
|
||||||
|
if (!subcompositor->global) {
|
||||||
|
free(subcompositor);
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
wl_signal_init(&subcompositor->events.destroy);
|
||||||
|
|
||||||
|
subcompositor->display_destroy.notify = subcompositor_handle_display_destroy;
|
||||||
|
wl_display_add_destroy_listener(display, &subcompositor->display_destroy);
|
||||||
|
|
||||||
|
return subcompositor;
|
||||||
|
}
|
||||||
Loading…
Reference in new issue