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#include <stdlib.h>
#include <wlr/types/wlr_scene.h>
#include <wlr/types/wlr_xdg_shell.h>
struct wlr_scene_xdg_surface {
struct wlr_scene_tree *tree;
struct wlr_xdg_surface *xdg_surface;
struct wlr_scene_tree *surface_tree;
struct wl_listener tree_destroy;
struct wl_listener xdg_surface_destroy;
struct wl_listener xdg_surface_map;
struct wl_listener xdg_surface_unmap;
struct wl_listener xdg_surface_commit;
};
static void scene_xdg_surface_handle_tree_destroy(struct wl_listener *listener,
void *data) {
struct wlr_scene_xdg_surface *scene_xdg_surface =
wl_container_of(listener, scene_xdg_surface, tree_destroy);
// tree and surface_node will be cleaned up by scene_node_finish
wl_list_remove(&scene_xdg_surface->tree_destroy.link);
wl_list_remove(&scene_xdg_surface->xdg_surface_destroy.link);
wl_list_remove(&scene_xdg_surface->xdg_surface_map.link);
wl_list_remove(&scene_xdg_surface->xdg_surface_unmap.link);
wl_list_remove(&scene_xdg_surface->xdg_surface_commit.link);
free(scene_xdg_surface);
}
static void scene_xdg_surface_handle_xdg_surface_destroy(struct wl_listener *listener,
void *data) {
struct wlr_scene_xdg_surface *scene_xdg_surface =
wl_container_of(listener, scene_xdg_surface, xdg_surface_destroy);
wlr_scene_node_destroy(&scene_xdg_surface->tree->node);
}
static void scene_xdg_surface_handle_xdg_surface_map(struct wl_listener *listener,
void *data) {
struct wlr_scene_xdg_surface *scene_xdg_surface =
wl_container_of(listener, scene_xdg_surface, xdg_surface_map);
wlr_scene_node_set_enabled(&scene_xdg_surface->tree->node, true);
}
static void scene_xdg_surface_handle_xdg_surface_unmap(struct wl_listener *listener,
void *data) {
struct wlr_scene_xdg_surface *scene_xdg_surface =
wl_container_of(listener, scene_xdg_surface, xdg_surface_unmap);
wlr_scene_node_set_enabled(&scene_xdg_surface->tree->node, false);
}
static void scene_xdg_surface_update_position(
struct wlr_scene_xdg_surface *scene_xdg_surface) {
struct wlr_xdg_surface *xdg_surface = scene_xdg_surface->xdg_surface;
struct wlr_box geo = {0};
wlr_xdg_surface_get_geometry(xdg_surface, &geo);
wlr_scene_node_set_position(&scene_xdg_surface->surface_tree->node,
-geo.x, -geo.y);
if (xdg_surface->role == WLR_XDG_SURFACE_ROLE_POPUP) {
struct wlr_xdg_popup *popup = xdg_surface->popup;
wlr_scene_node_set_position(&scene_xdg_surface->tree->node,
popup->current.geometry.x, popup->current.geometry.y);
}
}
static void scene_xdg_surface_handle_xdg_surface_commit(struct wl_listener *listener,
void *data) {
struct wlr_scene_xdg_surface *scene_xdg_surface =
wl_container_of(listener, scene_xdg_surface, xdg_surface_commit);
scene_xdg_surface_update_position(scene_xdg_surface);
}
struct wlr_scene_tree *wlr_scene_xdg_surface_create(
struct wlr_scene_tree *parent, struct wlr_xdg_surface *xdg_surface) {
struct wlr_scene_xdg_surface *scene_xdg_surface =
calloc(1, sizeof(*scene_xdg_surface));
if (scene_xdg_surface == NULL) {
return NULL;
}
scene_xdg_surface->xdg_surface = xdg_surface;
scene_xdg_surface->tree = wlr_scene_tree_create(parent);
if (scene_xdg_surface->tree == NULL) {
free(scene_xdg_surface);
return NULL;
}
scene_xdg_surface->surface_tree = wlr_scene_subsurface_tree_create(
scene_xdg_surface->tree, xdg_surface->surface);
if (scene_xdg_surface->surface_tree == NULL) {
wlr_scene_node_destroy(&scene_xdg_surface->tree->node);
free(scene_xdg_surface);
return NULL;
}
scene_xdg_surface->tree_destroy.notify =
scene_xdg_surface_handle_tree_destroy;
wl_signal_add(&scene_xdg_surface->tree->node.events.destroy,
&scene_xdg_surface->tree_destroy);
scene_xdg_surface->xdg_surface_destroy.notify =
scene_xdg_surface_handle_xdg_surface_destroy;
wl_signal_add(&xdg_surface->events.destroy, &scene_xdg_surface->xdg_surface_destroy);
scene_xdg_surface->xdg_surface_map.notify =
scene_xdg_surface_handle_xdg_surface_map;
wl_signal_add(&xdg_surface->events.map, &scene_xdg_surface->xdg_surface_map);
scene_xdg_surface->xdg_surface_unmap.notify =
scene_xdg_surface_handle_xdg_surface_unmap;
wl_signal_add(&xdg_surface->events.unmap, &scene_xdg_surface->xdg_surface_unmap);
scene_xdg_surface->xdg_surface_commit.notify =
scene_xdg_surface_handle_xdg_surface_commit;
wl_signal_add(&xdg_surface->surface->events.commit,
&scene_xdg_surface->xdg_surface_commit);
wlr_scene_node_set_enabled(&scene_xdg_surface->tree->node, xdg_surface->mapped);
scene_xdg_surface_update_position(scene_xdg_surface);
return scene_xdg_surface->tree;
}
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