xcursor-configuration: initial protocol implementation

types/meson.build

@@ -58,6 +58,7 @@ lib_wlr_types = static_library(
 		'wlr_touch.c',
 		'wlr_virtual_keyboard_v1.c',
 		'wlr_wl_shell.c',
+		'wlr_xcursor_configuration_v1.c',
 		'wlr_xcursor_manager.c',
 		'wlr_xdg_decoration_v1.c',
 		'wlr_xdg_output_v1.c',

types/wlr_screencopy_v1.c

@@ -261,7 +261,7 @@ static const struct zwlr_screencopy_manager_v1_interface manager_impl = {
 	.destroy = manager_handle_destroy,
 };
 
-void manager_handle_resource_destroy(struct wl_resource *resource) {
+static void manager_handle_resource_destroy(struct wl_resource *resource) {
 	wl_list_remove(wl_resource_get_link(resource));
 }
 

types/wlr_xcursor_configuration_v1.c

@@ -0,0 +1,229 @@
+#define _POSIX_C_SOURCE 200809L
+#include <assert.h>
+#include <stdlib.h>
+#include <wlr/types/wlr_seat.h>
+#include <wlr/types/wlr_xcursor_configuration_v1.h>
+#include <wlr/util/log.h>
+#include "util/signal.h"
+
+#define XCURSOR_CONFIGURATION_MANAGER_VERSION 1
+
+static struct wlr_xcursor_configuration_v1 *manager_get_configuration(
+		struct wlr_xcursor_configuration_manager_v1 *manager,
+		struct wlr_seat *seat,
+		enum zwp_xcursor_configuration_manager_v1_device_type device_type) {
+	struct wlr_xcursor_configuration_v1 *config;
+	wl_list_for_each(config, &manager->configurations, link) {
+		if (config->seat == seat && config->device_type == device_type) {
+			return config;
+		}
+	}
+	return NULL;
+}
+
+static void configuration_handle_destroy(struct wl_client *client,
+		struct wl_resource *config_resource) {
+	wl_resource_destroy(config_resource);
+}
+
+static const struct zwp_xcursor_configuration_v1_interface
+		configuration_impl = {
+	.destroy = configuration_handle_destroy,
+};
+
+static void configuration_send(struct wlr_xcursor_configuration_v1 *config,
+		struct wl_resource *resource) {
+	zwp_xcursor_configuration_v1_send_theme(resource,
+		config->attrs.theme.name, config->attrs.theme.size);
+	zwp_xcursor_configuration_v1_send_default_cursor(resource,
+		config->attrs.default_cursor);
+	zwp_xcursor_configuration_v1_send_done(resource);
+}
+
+static void configuration_handle_resource_destroy(
+		struct wl_resource *resource) {
+	wl_list_remove(wl_resource_get_link(resource));
+}
+
+static const struct zwp_xcursor_configuration_manager_v1_interface manager_impl;
+
+struct wlr_xcursor_configuration_manager_v1 *manager_from_resource(
+		struct wl_resource *resource) {
+	assert(wl_resource_instance_of(resource,
+		&zwp_xcursor_configuration_manager_v1_interface, &manager_impl));
+	return wl_resource_get_user_data(resource);
+}
+
+static void manager_handle_get_device_xcursor_configuration(
+		struct wl_client *client, struct wl_resource *manager_resource,
+		uint32_t id, struct wl_resource *seat_resource,
+		enum zwp_xcursor_configuration_manager_v1_device_type device_type) {
+	struct wlr_xcursor_configuration_manager_v1 *manager =
+		manager_from_resource(manager_resource);
+	struct wlr_seat_client *seat_client =
+		wlr_seat_client_from_resource(seat_resource);
+
+	struct wlr_xcursor_configuration_v1 *config =
+		manager_get_configuration(manager, seat_client->seat, device_type);
+	assert(config != NULL);
+
+	uint32_t version = wl_resource_get_version(manager_resource);
+	struct wl_resource *resource = wl_resource_create(client,
+		&zwp_xcursor_configuration_v1_interface, version, id);
+	if (resource == NULL) {
+		wl_client_post_no_memory(client);
+		return;
+	}
+	wl_resource_set_implementation(resource, &configuration_impl, config,
+		configuration_handle_resource_destroy);
+
+	wl_list_insert(&config->resources, wl_resource_get_link(resource));
+
+	configuration_send(config, resource);
+}
+
+static void manager_handle_destroy(struct wl_client *client,
+		struct wl_resource *manager_resource) {
+	wl_resource_destroy(manager_resource);
+}
+
+static const struct zwp_xcursor_configuration_manager_v1_interface
+		manager_impl = {
+	.get_device_xcursor_configuration =
+		manager_handle_get_device_xcursor_configuration,
+	.destroy = manager_handle_destroy,
+};
+
+static void manager_handle_resource_destroy(struct wl_resource *resource) {
+	wl_list_remove(wl_resource_get_link(resource));
+}
+
+static void manager_bind(struct wl_client *client, void *data, uint32_t version,
+		uint32_t id) {
+	struct wlr_xcursor_configuration_manager_v1 *manager = data;
+
+	struct wl_resource *resource = wl_resource_create(client,
+		&zwp_xcursor_configuration_manager_v1_interface, version, id);
+	if (resource == NULL) {
+		wl_client_post_no_memory(client);
+		return;
+	}
+	wl_resource_set_implementation(resource, &manager_impl, manager,
+		manager_handle_resource_destroy);
+
+	wl_list_insert(&manager->resources, wl_resource_get_link(resource));
+}
+
+static void handle_display_destroy(struct wl_listener *listener, void *data) {
+	struct wlr_xcursor_configuration_manager_v1 *manager =
+		wl_container_of(listener, manager, display_destroy);
+	wlr_xcursor_configuration_manager_v1_destroy(manager);
+}
+
+struct wlr_xcursor_configuration_manager_v1 *
+		wlr_xcursor_configuration_manager_v1_create(struct wl_display *display) {
+	struct wlr_xcursor_configuration_manager_v1 *manager =
+		calloc(1, sizeof(struct wlr_xcursor_configuration_manager_v1));
+	if (manager == NULL) {
+		return NULL;
+	}
+
+	manager->global = wl_global_create(display,
+		&zwp_xcursor_configuration_manager_v1_interface,
+		XCURSOR_CONFIGURATION_MANAGER_VERSION, manager, manager_bind);
+	if (manager->global == NULL) {
+		free(manager);
+		return NULL;
+	}
+
+	wl_list_init(&manager->resources);
+	wl_list_init(&manager->configurations);
+	wl_signal_init(&manager->events.destroy);
+
+	manager->display_destroy.notify = handle_display_destroy;
+	wl_display_add_destroy_listener(display, &manager->display_destroy);
+
+	return manager;
+}
+
+static void configuration_destroy(struct wlr_xcursor_configuration_v1 *config) {
+	struct wl_resource *resource, *tmp_resource;
+	wl_resource_for_each_safe(resource, tmp_resource, &config->resources) {
+		// Make resource inert
+		wl_resource_set_user_data(resource, NULL);
+		wl_list_remove(wl_resource_get_link(resource));
+		wl_list_init(wl_resource_get_link(resource));
+	}
+	wl_list_remove(&config->seat_destroy.link);
+	free(config->attrs.theme.name);
+	free(config->attrs.default_cursor);
+	free(config);
+}
+
+void wlr_xcursor_configuration_manager_v1_destroy(
+		struct wlr_xcursor_configuration_manager_v1 *manager) {
+	if (manager == NULL) {
+		return;
+	}
+	wlr_signal_emit_safe(&manager->events.destroy, manager);
+	wl_list_remove(&manager->display_destroy.link);
+	struct wlr_xcursor_configuration_v1 *config, *tmp_config;
+	wl_list_for_each_safe(config, tmp_config, &manager->configurations, link) {
+		struct wl_resource *resource, *tmp_resource;
+		wl_resource_for_each_safe(resource, tmp_resource, &config->resources) {
+			wl_resource_destroy(resource);
+		}
+		configuration_destroy(config);
+	}
+	struct wl_resource *resource, *tmp_resource;
+	wl_resource_for_each_safe(resource, tmp_resource, &manager->resources) {
+		wl_resource_destroy(resource);
+	}
+	wl_global_destroy(manager->global);
+	free(manager);
+}
+
+static void configuration_handle_seat_destroy(struct wl_listener *listener,
+		void *data) {
+	struct wlr_xcursor_configuration_v1 *config =
+		wl_container_of(listener, config, seat_destroy);
+	configuration_destroy(config);
+}
+
+void wlr_xcursor_configuration_manager_v1_configure(
+		struct wlr_xcursor_configuration_manager_v1 *manager,
+		struct wlr_seat *seat,
+		enum zwp_xcursor_configuration_manager_v1_device_type device_type,
+		const struct wlr_xcursor_configuration_v1_attrs *attrs) {
+	struct wlr_xcursor_configuration_v1 *config =
+		manager_get_configuration(manager, seat, device_type);
+	if (config == NULL) {
+		config = calloc(1, sizeof(struct wlr_xcursor_configuration_v1));
+		if (config == NULL) {
+			wlr_log_errno(WLR_ERROR, "Allocation failed");
+			return;
+		}
+		config->seat = seat;
+		config->device_type = device_type;
+		wl_list_init(&config->resources);
+		wl_list_insert(&manager->configurations, &config->link);
+
+		config->seat_destroy.notify = configuration_handle_seat_destroy;
+		wl_signal_add(&seat->events.destroy, &config->seat_destroy);
+	}
+
+	assert(attrs->theme.name != NULL);
+	assert(attrs->theme.size != 0);
+	assert(attrs->default_cursor != NULL);
+
+	free(config->attrs.theme.name);
+	config->attrs.theme.name = strdup(attrs->theme.name);
+	config->attrs.theme.size = attrs->theme.size;
+	free(config->attrs.default_cursor);
+	config->attrs.default_cursor = strdup(attrs->default_cursor);
+
+	struct wl_resource *resource;
+	wl_resource_for_each(resource, &config->resources) {
+		configuration_send(config, resource);
+	}
+}