199 lines
6.5 KiB
C
199 lines
6.5 KiB
C
#include <assert.h>
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#include <stdlib.h>
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#include <wlr/types/wlr_content_type_v1.h>
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#include <wlr/types/wlr_compositor.h>
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#define CONTENT_TYPE_VERSION 1
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struct wlr_content_type_v1_surface {
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struct wl_resource *resource;
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struct wlr_addon addon;
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enum wp_content_type_v1_type pending, current;
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struct wlr_surface_synced synced;
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};
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static void resource_handle_destroy(struct wl_client *client,
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struct wl_resource *resource) {
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wl_resource_destroy(resource);
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}
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static const struct wp_content_type_v1_interface content_type_surface_impl;
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static const struct wp_content_type_manager_v1_interface manager_impl;
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// Returns NULL if the resource is inert
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static struct wlr_content_type_v1_surface *content_type_surface_from_resource(
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struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource,
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&wp_content_type_v1_interface, &content_type_surface_impl));
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return wl_resource_get_user_data(resource);
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}
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static struct wlr_content_type_manager_v1 *manager_from_resource(
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struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource,
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&wp_content_type_manager_v1_interface, &manager_impl));
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return wl_resource_get_user_data(resource);
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}
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static void content_type_surface_handle_set_content_type(struct wl_client *client,
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struct wl_resource *resource, uint32_t type) {
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struct wlr_content_type_v1_surface *content_type_surface =
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content_type_surface_from_resource(resource);
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if (content_type_surface == NULL) {
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return;
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}
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content_type_surface->pending = type;
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}
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static const struct wp_content_type_v1_interface content_type_surface_impl = {
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.destroy = resource_handle_destroy,
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.set_content_type = content_type_surface_handle_set_content_type,
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};
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static void content_type_surface_destroy(
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struct wlr_content_type_v1_surface *content_type_surface) {
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if (content_type_surface == NULL) {
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return;
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}
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wlr_addon_finish(&content_type_surface->addon);
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wlr_surface_synced_finish(&content_type_surface->synced);
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wl_resource_set_user_data(content_type_surface->resource, NULL);
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free(content_type_surface);
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}
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static void surface_addon_destroy(struct wlr_addon *addon) {
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struct wlr_content_type_v1_surface *content_type_surface =
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wl_container_of(addon, content_type_surface, addon);
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content_type_surface_destroy(content_type_surface);
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}
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static const struct wlr_addon_interface surface_addon_impl = {
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.name = "wp_content_type_v1",
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.destroy = surface_addon_destroy,
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};
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static const struct wlr_surface_synced_impl surface_synced_impl = {
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.state_size = sizeof(enum wp_content_type_v1_type),
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};
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static void content_type_surface_handle_resource_destroy(
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struct wl_resource *resource) {
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struct wlr_content_type_v1_surface *content_type_surface =
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content_type_surface_from_resource(resource);
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content_type_surface_destroy(content_type_surface);
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}
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static void manager_handle_get_surface_content_type(struct wl_client *client,
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struct wl_resource *manager_resource, uint32_t id,
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struct wl_resource *surface_resource) {
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struct wlr_content_type_manager_v1 *manager =
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manager_from_resource(manager_resource);
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struct wlr_surface *surface = wlr_surface_from_resource(surface_resource);
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if (wlr_addon_find(&surface->addons, manager, &surface_addon_impl) != NULL) {
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wl_resource_post_error(manager_resource,
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WP_CONTENT_TYPE_MANAGER_V1_ERROR_ALREADY_CONSTRUCTED,
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"wp_content_type_v1 already constructed for this surface");
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return;
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}
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struct wlr_content_type_v1_surface *content_type_surface =
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calloc(1, sizeof(*content_type_surface));
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if (content_type_surface == NULL) {
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wl_resource_post_no_memory(manager_resource);
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return;
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}
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if (!wlr_surface_synced_init(&content_type_surface->synced, surface,
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&surface_synced_impl, &content_type_surface->pending,
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&content_type_surface->current)) {
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free(content_type_surface);
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wl_resource_post_no_memory(manager_resource);
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return;
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}
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uint32_t version = wl_resource_get_version(manager_resource);
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content_type_surface->resource = wl_resource_create(client,
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&wp_content_type_v1_interface, version, id);
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if (content_type_surface->resource == NULL) {
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wlr_surface_synced_finish(&content_type_surface->synced);
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free(content_type_surface);
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wl_resource_post_no_memory(manager_resource);
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return;
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}
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wl_resource_set_implementation(content_type_surface->resource,
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&content_type_surface_impl, content_type_surface,
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content_type_surface_handle_resource_destroy);
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wlr_addon_init(&content_type_surface->addon, &surface->addons,
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manager, &surface_addon_impl);
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}
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static const struct wp_content_type_manager_v1_interface manager_impl = {
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.destroy = resource_handle_destroy,
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.get_surface_content_type = manager_handle_get_surface_content_type,
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};
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static void manager_bind(struct wl_client *client, void *data,
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uint32_t version, uint32_t id) {
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struct wlr_content_type_manager_v1 *manager = data;
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struct wl_resource *resource = wl_resource_create(client,
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&wp_content_type_manager_v1_interface, version, id);
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if (resource == NULL) {
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wl_client_post_no_memory(client);
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return;
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}
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wl_resource_set_implementation(resource, &manager_impl, manager, NULL);
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}
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static void handle_display_destroy(struct wl_listener *listener, void *data) {
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struct wlr_content_type_manager_v1 *manager =
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wl_container_of(listener, manager, display_destroy);
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wl_signal_emit_mutable(&manager->events.destroy, NULL);
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assert(wl_list_empty(&manager->events.destroy.listener_list));
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wl_global_destroy(manager->global);
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wl_list_remove(&manager->display_destroy.link);
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free(manager);
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}
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struct wlr_content_type_manager_v1 *wlr_content_type_manager_v1_create(
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struct wl_display *display, uint32_t version) {
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assert(version <= CONTENT_TYPE_VERSION);
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struct wlr_content_type_manager_v1 *manager = calloc(1, sizeof(*manager));
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if (manager == NULL) {
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return NULL;
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}
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manager->global = wl_global_create(display,
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&wp_content_type_manager_v1_interface, version, manager, manager_bind);
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if (manager->global == NULL) {
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free(manager);
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return NULL;
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}
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wl_signal_init(&manager->events.destroy);
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manager->display_destroy.notify = handle_display_destroy;
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wl_display_add_destroy_listener(display, &manager->display_destroy);
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return manager;
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}
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enum wp_content_type_v1_type wlr_surface_get_content_type_v1(
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struct wlr_content_type_manager_v1 *manager, struct wlr_surface *surface) {
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struct wlr_addon *addon =
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wlr_addon_find(&surface->addons, manager, &surface_addon_impl);
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if (addon == NULL) {
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return WP_CONTENT_TYPE_V1_TYPE_NONE;
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}
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struct wlr_content_type_v1_surface *content_type_surface =
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wl_container_of(addon, content_type_surface, addon);
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return content_type_surface->current;
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}
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