mirror of https://github.com/swaywm/sway.git
67 lines
1.7 KiB
C
67 lines
1.7 KiB
C
#include <stdlib.h>
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#include <wlr/util/addon.h>
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#include "log.h"
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#include "sway/scene_descriptor.h"
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struct scene_descriptor {
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void *data;
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struct wlr_addon addon;
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};
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static const struct wlr_addon_interface addon_interface;
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static struct scene_descriptor *scene_node_get_descriptor(
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struct wlr_scene_node *node, enum sway_scene_descriptor_type type) {
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struct wlr_addon *addon = wlr_addon_find(&node->addons, (void *)type, &addon_interface);
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if (!addon) {
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return NULL;
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}
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struct scene_descriptor *desc = wl_container_of(addon, desc, addon);
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return desc;
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}
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static void descriptor_destroy(struct scene_descriptor *desc) {
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wlr_addon_finish(&desc->addon);
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free(desc);
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}
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void *scene_descriptor_try_get(struct wlr_scene_node *node,
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enum sway_scene_descriptor_type type) {
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struct scene_descriptor *desc = scene_node_get_descriptor(node, type);
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if (!desc) {
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return NULL;
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}
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return desc->data;
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}
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void scene_descriptor_destroy(struct wlr_scene_node *node,
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enum sway_scene_descriptor_type type) {
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struct scene_descriptor *desc = scene_node_get_descriptor(node, type);
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descriptor_destroy(desc);
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}
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static void addon_handle_destroy(struct wlr_addon *addon) {
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struct scene_descriptor *desc = wl_container_of(addon, desc, addon);
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descriptor_destroy(desc);
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}
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static const struct wlr_addon_interface addon_interface = {
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.name = "sway_scene_descriptor",
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.destroy = addon_handle_destroy,
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};
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bool scene_descriptor_assign(struct wlr_scene_node *node,
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enum sway_scene_descriptor_type type, void *data) {
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struct scene_descriptor *desc = calloc(1, sizeof(*desc));
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if (!desc) {
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sway_log(SWAY_ERROR, "Could not allocate a scene descriptor");
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return false;
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}
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wlr_addon_init(&desc->addon, &node->addons, (void *)type, &addon_interface);
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desc->data = data;
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return true;
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}
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