implements the idle_inhibit protocol type

This adds the types/wlr_idle_inhibit_v1 implementation.

include/rootston/desktop.h

@@ -16,6 +16,10 @@
 #include <wlr/types/wlr_xcursor_manager.h>
 #include <wlr/types/wlr_xdg_shell_v6.h>
 #include <wlr/types/wlr_xdg_shell.h>
+#include <wlr/types/wlr_list.h>
+#include <wlr/types/wlr_idle.h>
+#include <wlr/types/wlr_idle_inhibit_v1.h>
+#include "rootston/view.h"
 #include "rootston/config.h"
 #include "rootston/output.h"
 #include "rootston/view.h"
@@ -41,6 +45,7 @@ struct roots_desktop {
 	struct wlr_server_decoration_manager *server_decoration_manager;
 	struct wlr_primary_selection_device_manager *primary_selection_device_manager;
 	struct wlr_idle *idle;
+	struct wlr_idle_inhibit_v1 *idle_inhibit;
 
 	struct wl_listener new_output;
 	struct wl_listener layout_change;

include/wlr/types/wlr_idle_inhibit_v1.h

@@ -0,0 +1,27 @@
+#ifndef WLR_TYPES_WLR_IDLE_INHIBIT_V1_H
+#define WLR_TYPES_WLR_IDLE_INHIBIT_V1_H
+
+#include <wayland-server.h>
+
+struct wlr_idle_inhibit_v1 {
+	struct wl_list clients;
+	struct wl_global *global;
+	
+	struct wl_listener display_destroy;
+	struct wl_signal new_inhibitor;
+};
+
+struct wlr_idle_inhibit_inhibitor_v1 {
+	struct wlr_surface *surface;
+	struct wl_resource *resource;
+	struct wl_listener surface_destroy;
+
+	struct wl_list link; // wlr_idle_inhibit_manager::inhibitors;
+
+	struct wl_signal destroy;
+};
+
+struct wlr_idle_inhibit_v1 *wlr_idle_inhibit_v1_create(struct wl_display *display);
+void wlr_idle_inhibit_v1_destroy(struct wlr_idle_inhibit_v1 *idle_inhibit);
+
+#endif

protocol/meson.build

@@ -23,6 +23,7 @@ wayland_scanner_client = generator(
 protocols = [
 	[wl_protocol_dir, 'unstable/xdg-shell/xdg-shell-unstable-v6.xml'],
 	[wl_protocol_dir, 'stable/xdg-shell/xdg-shell.xml'],
+	[wl_protocol_dir, 'unstable/idle-inhibit/idle-inhibit-unstable-v1.xml'],
 	'gamma-control.xml',
 	'gtk-primary-selection.xml',
 	'idle.xml',
@@ -32,8 +33,12 @@ protocols = [
 
 client_protocols = [
 	[wl_protocol_dir, 'unstable/xdg-shell/xdg-shell-unstable-v6.xml'],
+	[wl_protocol_dir, 'unstable/idle-inhibit/idle-inhibit-unstable-v1.xml'],
+	'gamma-control.xml',
+	'gtk-primary-selection.xml',
 	'idle.xml',
 	'screenshooter.xml',
+	'server-decoration.xml',
 ]
 
 wl_protos_src = []

rootston/desktop.c

@@ -10,6 +10,7 @@
 #include <wlr/types/wlr_gamma_control.h>
 #include <wlr/types/wlr_idle.h>
 #include <wlr/types/wlr_output_layout.h>
+#include <wlr/types/wlr_idle_inhibit_v1.h>
 #include <wlr/types/wlr_primary_selection.h>
 #include <wlr/types/wlr_server_decoration.h>
 #include <wlr/types/wlr_wl_shell.h>
@@ -703,6 +704,7 @@ struct roots_desktop *desktop_create(struct roots_server *server,
 	desktop->primary_selection_device_manager =
 		wlr_primary_selection_device_manager_create(server->wl_display);
 	desktop->idle = wlr_idle_create(server->wl_display);
+	desktop->idle_inhibit = wlr_idle_inhibit_v1_create(server->wl_display);
 
 	return desktop;
 }

types/meson.build

@@ -27,6 +27,7 @@ lib_wlr_types = static_library(
 		'wlr_xcursor_manager.c',
 		'wlr_xdg_shell_v6.c',
 		'wlr_xdg_shell.c',
+		'wlr_idle_inhibit_v1.c',
 	),
 	include_directories: wlr_inc,
 	dependencies: [pixman, xkbcommon, wayland_server, wlr_protos],

types/wlr_idle_inhibit_v1.c

@@ -0,0 +1,191 @@
+#include <assert.h>
+#include <stdlib.h>
+#include <wlr/util/log.h>
+#include <wlr/types/wlr_surface.h>
+#include <wlr/types/wlr_idle_inhibit_v1.h>
+#include "wayland-util.h"
+#include "wayland-server.h"
+#include "idle-inhibit-unstable-v1-protocol.h"
+
+struct wlr_idle_inhibit_manager {
+	struct wlr_idle_inhibit_v1 *wlr_idle_inhibit;
+	struct wl_resource *resource;
+
+	struct wl_list link; // wlr_idle_inhibit_v1::clients
+
+	struct wl_list inhibitors;
+};
+
+static void idle_inhibit_inhibitor_destroy(struct wl_resource *resource) {
+	struct wlr_idle_inhibit_inhibitor_v1 *inhibitor = wl_resource_get_user_data(resource);
+	assert(inhibitor);
+
+	wl_signal_emit(&inhibitor->destroy, inhibitor->surface);
+
+	wl_list_remove(&inhibitor->link);
+	wl_list_remove(&inhibitor->surface_destroy.link);
+	free(inhibitor);
+}
+
+static void idle_inhibit_inhibitor_handle_surface_destroy(struct wl_listener *listener,
+		void *data) {
+	assert(listener);
+	struct wlr_idle_inhibit_inhibitor_v1 *inhibitor =
+		wl_container_of(listener, inhibitor, surface_destroy);
+
+	wl_resource_destroy(inhibitor->resource);
+}
+
+static void idle_inhibit_inhibitor_v1_handle_destroy(struct wl_client *client,
+		struct wl_resource *manager_resource) {
+	wl_resource_destroy(manager_resource);
+}
+
+static struct zwp_idle_inhibitor_v1_interface idle_inhibitor_impl = {
+	.destroy = idle_inhibit_inhibitor_v1_handle_destroy,
+};
+
+static void wlr_create_inhibitor(struct wl_client *client,
+		struct wl_resource *resource, uint32_t id,
+		struct wl_resource *surface_resource) {
+	struct wlr_surface *surface = wl_resource_get_user_data(surface_resource);
+	struct wlr_idle_inhibit_manager *manager = wl_resource_get_user_data(resource);
+	assert(surface && manager);
+
+	struct wlr_idle_inhibit_inhibitor_v1 *inhibitor = calloc(1, sizeof(struct wlr_idle_inhibit_inhibitor_v1));
+	if (!inhibitor) {
+		wl_client_post_no_memory(client);
+		return;
+	}
+
+	struct wl_resource *wl_resource = wl_resource_create(client,
+		&zwp_idle_inhibitor_v1_interface, 1, id);
+	if (!wl_resource) {
+		wl_client_post_no_memory(client);
+		free(inhibitor);
+		return;
+	}
+
+	inhibitor->resource = wl_resource;
+	inhibitor->surface = surface;
+	wl_signal_init(&inhibitor->destroy);
+
+	inhibitor->surface_destroy.notify = idle_inhibit_inhibitor_handle_surface_destroy;
+	wl_signal_add(&surface->events.destroy, &inhibitor->surface_destroy);
+
+
+	wl_resource_set_implementation(wl_resource, &idle_inhibitor_impl,
+		inhibitor, idle_inhibit_inhibitor_destroy);
+
+	wl_list_insert(&manager->inhibitors, &inhibitor->link);
+	wl_signal_emit(&manager->wlr_idle_inhibit->new_inhibitor, inhibitor);
+}
+
+
+static void idle_inhibit_manager_destroy(struct wl_resource *resource) {
+	struct wlr_idle_inhibit_manager *manager = wl_resource_get_user_data(resource);
+	assert(manager);
+
+	wl_list_remove(&manager->link);
+
+	struct wlr_idle_inhibit_inhibitor_v1 *inhibitor;
+	struct wlr_idle_inhibit_inhibitor_v1 *tmp;
+	wl_list_for_each_safe(inhibitor, tmp, &manager->inhibitors, link) {
+		wl_resource_destroy(inhibitor->resource);
+	}
+}
+
+static void idle_inhibit_manager_handle_destroy(struct wl_client *client,
+		struct wl_resource *manager_resource) {
+	wl_resource_destroy(manager_resource);
+}
+
+static struct zwp_idle_inhibit_manager_v1_interface idle_inhibit_impl = {
+	.destroy = idle_inhibit_manager_handle_destroy,
+	.create_inhibitor = wlr_create_inhibitor,
+};
+
+void wlr_idle_inhibit_v1_destroy(struct wlr_idle_inhibit_v1 *idle_inhibit);
+
+
+static void handle_display_destroy(struct wl_listener *listener, void *data) {
+	struct wlr_idle_inhibit_v1 *idle_inhibit =
+		wl_container_of(listener, idle_inhibit, display_destroy);
+
+	wlr_idle_inhibit_v1_destroy(idle_inhibit);
+}
+
+static void idle_inhibit_bind(struct wl_client *wl_client, void *data,
+		uint32_t version, uint32_t id) {
+	struct wlr_idle_inhibit_v1 *idle_inhibit = data;
+	assert(wl_client && idle_inhibit);
+
+	struct wlr_idle_inhibit_manager *manager = calloc(1, sizeof(struct wlr_idle_inhibit_manager));
+	if (!manager) {
+		wl_client_post_no_memory(wl_client);
+		return;
+	}
+
+	struct wl_resource *wl_resource  = wl_resource_create(wl_client,
+		&zwp_idle_inhibit_manager_v1_interface, version, id);
+
+	if (!wl_resource) {
+		wl_client_post_no_memory(wl_client);
+		free(manager);
+		return;
+	}
+
+	manager->resource = wl_resource;
+	wl_list_init(&manager->inhibitors);
+	wl_list_insert(&idle_inhibit->clients, &manager->link);
+	manager->wlr_idle_inhibit = idle_inhibit;
+
+
+	wl_resource_set_implementation(wl_resource, &idle_inhibit_impl,
+		manager, idle_inhibit_manager_destroy);
+	wlr_log(L_DEBUG, "idle_inhibit bound");
+}
+
+void wlr_idle_inhibit_v1_destroy(struct wlr_idle_inhibit_v1 *idle_inhibit) {
+	if (!idle_inhibit) {
+		return;
+	}
+
+	wl_list_remove(&idle_inhibit->display_destroy.link);
+
+	struct wlr_idle_inhibit_manager *manager;
+	struct wlr_idle_inhibit_manager *tmp;
+	wl_list_for_each_safe(manager, tmp, &idle_inhibit->clients, link) {
+		wl_resource_destroy(manager->resource);
+	}
+
+	wl_global_destroy(idle_inhibit->global);
+	free(idle_inhibit);
+}
+
+struct wlr_idle_inhibit_v1 *wlr_idle_inhibit_v1_create(struct wl_display *display) {
+	struct wlr_idle_inhibit_v1 *idle_inhibit = calloc(1, sizeof(struct wlr_idle_inhibit_v1));
+
+	if (!idle_inhibit) {
+		return NULL;
+	}
+
+	wl_list_init(&idle_inhibit->clients);
+	idle_inhibit->display_destroy.notify = handle_display_destroy;
+	wl_display_add_destroy_listener(display, &idle_inhibit->display_destroy);
+	wl_signal_init(&idle_inhibit->new_inhibitor);
+
+	idle_inhibit->global = wl_global_create(display,
+		&zwp_idle_inhibit_manager_v1_interface, 1,
+		idle_inhibit, idle_inhibit_bind);
+
+	if (!idle_inhibit->global) {
+		wl_list_remove(&idle_inhibit->display_destroy.link);
+		free(idle_inhibit);
+		return NULL;
+	}
+
+	wlr_log(L_DEBUG, "idle_inhibit manager created");
+
+	return idle_inhibit;
+}