feat:add ext-workspace protocol file for temp

meson.build

@@ -86,6 +86,7 @@ endif
 executable('mango',
   'src/mango.c',
   'src/common/util.c',
+  'src/ext-protocol/wlr_ext_workspace_v1.c',
   wayland_sources,
   dependencies : [
     libm,

protocols/meson.build

@@ -18,6 +18,7 @@ wayland_xmls = [
 	wl_protocol_dir + '/staging/ext-image-copy-capture/ext-image-copy-capture-v1.xml',
 	wl_protocol_dir + '/staging/ext-image-capture-source/ext-image-capture-source-v1.xml',
 	wl_protocol_dir + '/staging/ext-foreign-toplevel-list/ext-foreign-toplevel-list-v1.xml',
+	wl_protocol_dir + '/staging/ext-workspace/ext-workspace-v1.xml',
 	'wlr-foreign-toplevel-management-unstable-v1.xml',
 	'dwl-ipc-unstable-v2.xml',
 	'wlr-layer-shell-unstable-v1.xml',

src/ext-protocol/ext-workspace.h

@@ -1,4 +1,4 @@
-#include <wlr/types/wlr_ext_workspace_v1.h>
+#include "wlr_ext_workspace_v1.h"
 
 typedef struct Monitor Monitor;
 

src/ext-protocol/wlr_ext_workspace_v1.c

@@ -0,0 +1,930 @@
+#include <assert.h>
+#include <string.h>
+#include <stdlib.h>
+#include "wlr_ext_workspace_v1.h"
+#include <wlr/types/wlr_output.h>
+#include "ext-workspace-v1-protocol.h"
+
+#define EXT_WORKSPACE_V1_VERSION 1
+
+enum wlr_ext_workspace_v1_request_type {
+	WLR_EXT_WORKSPACE_V1_REQUEST_CREATE_WORKSPACE,
+	WLR_EXT_WORKSPACE_V1_REQUEST_ACTIVATE,
+	WLR_EXT_WORKSPACE_V1_REQUEST_DEACTIVATE,
+	WLR_EXT_WORKSPACE_V1_REQUEST_ASSIGN,
+	WLR_EXT_WORKSPACE_V1_REQUEST_REMOVE,
+};
+
+struct wlr_ext_workspace_v1_request {
+	enum wlr_ext_workspace_v1_request_type type;
+
+	// CREATE_WORKSPACE
+	char *name;
+	// CREATE_WORKSPACE / ASSIGN
+	struct wlr_ext_workspace_group_handle_v1 *group;
+	// ACTIVATE / DEACTIVATE / ASSIGN / REMOVE
+	struct wlr_ext_workspace_handle_v1 *workspace;
+
+	struct wl_list link; // wlr_ext_workspace_manager_client_v1.requests
+};
+
+struct wlr_ext_workspace_v1_group_output {
+	struct wlr_output *output;
+	struct wlr_ext_workspace_group_handle_v1 *group;
+	struct wl_listener output_bind;
+	struct wl_listener output_destroy;
+	struct wl_list link;
+};
+
+// These structs wrap wl_resource of each interface to access the request queue
+// (wlr_ext_workspace_manager_client_v1.requests) assigned per manager resource
+
+struct wlr_ext_workspace_manager_client_v1 {
+	struct wl_resource *resource;
+	struct wlr_ext_workspace_manager_v1 *manager;
+	struct wl_list requests; // wlr_ext_workspace_v1_request.link
+	struct wl_list link; // wlr_ext_workspace_manager_v1.clients
+};
+
+struct wlr_ext_workspace_group_client_v1 {
+	struct wl_resource *resource;
+	struct wlr_ext_workspace_group_handle_v1 *group;
+	struct wlr_ext_workspace_manager_client_v1 *manager;
+	struct wl_list link; // wlr_ext_workspace_group_v1.clients
+};
+
+struct wlr_ext_workspace_client_v1 {
+	struct wl_resource *resource;
+	struct wlr_ext_workspace_handle_v1 *workspace;
+	struct wlr_ext_workspace_manager_client_v1 *manager;
+	struct wl_list link; // wlr_ext_workspace_v1.clients
+};
+
+static const struct ext_workspace_group_handle_v1_interface group_impl;
+
+static struct wlr_ext_workspace_group_client_v1 *group_client_from_resource(
+		struct wl_resource *resource) {
+	assert(wl_resource_instance_of(resource,
+		&ext_workspace_group_handle_v1_interface, &group_impl));
+	return wl_resource_get_user_data(resource);
+}
+
+static const struct ext_workspace_handle_v1_interface workspace_impl;
+
+static struct wlr_ext_workspace_client_v1 *workspace_client_from_resource(
+		struct wl_resource *resource) {
+	assert(wl_resource_instance_of(resource,
+		&ext_workspace_handle_v1_interface, &workspace_impl));
+	return wl_resource_get_user_data(resource);
+}
+
+static const struct ext_workspace_manager_v1_interface manager_impl;
+
+static struct wlr_ext_workspace_manager_client_v1 *manager_client_from_resource(
+		struct wl_resource *resource) {
+	assert(wl_resource_instance_of(resource,
+		&ext_workspace_manager_v1_interface, &manager_impl));
+	return wl_resource_get_user_data(resource);
+}
+
+static void workspace_handle_destroy(struct wl_client *client,
+		struct wl_resource *resource) {
+	wl_resource_destroy(resource);
+}
+
+static void workspace_handle_activate(struct wl_client *client,
+		struct wl_resource *workspace_resource) {
+	struct wlr_ext_workspace_client_v1 *workspace =
+		workspace_client_from_resource(workspace_resource);
+	if (!workspace) {
+		return;
+	}
+
+	struct wlr_ext_workspace_v1_request *req = calloc(1, sizeof(*req));
+	if (!req) {
+		wl_resource_post_no_memory(workspace_resource);
+		return;
+	}
+	req->type = WLR_EXT_WORKSPACE_V1_REQUEST_ACTIVATE;
+	req->workspace = workspace->workspace;
+	wl_list_insert(workspace->manager->requests.prev, &req->link);
+}
+
+static void workspace_handle_deactivate(struct wl_client *client,
+		struct wl_resource *workspace_resource) {
+	struct wlr_ext_workspace_client_v1 *workspace =
+		workspace_client_from_resource(workspace_resource);
+	if (!workspace) {
+		return;
+	}
+
+	struct wlr_ext_workspace_v1_request *req = calloc(1, sizeof(*req));
+	if (!req) {
+		wl_resource_post_no_memory(workspace_resource);
+		return;
+	}
+	req->type = WLR_EXT_WORKSPACE_V1_REQUEST_DEACTIVATE;
+	req->workspace = workspace->workspace;
+	wl_list_insert(workspace->manager->requests.prev, &req->link);
+}
+
+static void workspace_handle_assign(struct wl_client *client,
+		struct wl_resource *workspace_resource,
+		struct wl_resource *group_resource) {
+	struct wlr_ext_workspace_client_v1 *workspace =
+		workspace_client_from_resource(workspace_resource);
+	struct wlr_ext_workspace_group_client_v1 *group =
+		group_client_from_resource(group_resource);
+	if (!workspace || !group) {
+		return;
+	}
+
+	struct wlr_ext_workspace_v1_request *req = calloc(1, sizeof(*req));
+	if (!req) {
+		wl_resource_post_no_memory(workspace_resource);
+		return;
+	}
+	req->type = WLR_EXT_WORKSPACE_V1_REQUEST_ASSIGN;
+	req->group = group->group;
+	req->workspace = workspace->workspace;
+	wl_list_insert(workspace->manager->requests.prev, &req->link);
+}
+
+static void workspace_handle_remove(struct wl_client *client,
+		struct wl_resource *workspace_resource) {
+	struct wlr_ext_workspace_client_v1 *workspace =
+		workspace_client_from_resource(workspace_resource);
+	if (!workspace) {
+		return;
+	}
+
+	struct wlr_ext_workspace_v1_request *req = calloc(1, sizeof(*req));
+	if (!req) {
+		wl_resource_post_no_memory(workspace_resource);
+		return;
+	}
+	req->type = WLR_EXT_WORKSPACE_V1_REQUEST_REMOVE;
+	req->workspace = workspace->workspace;
+	wl_list_insert(workspace->manager->requests.prev, &req->link);
+}
+
+static const struct ext_workspace_handle_v1_interface workspace_impl = {
+	.destroy = workspace_handle_destroy,
+	.activate = workspace_handle_activate,
+	.deactivate = workspace_handle_deactivate,
+	.assign = workspace_handle_assign,
+	.remove = workspace_handle_remove,
+};
+
+static void group_handle_create_workspace(struct wl_client *client,
+		struct wl_resource *group_resource, const char *name) {
+	struct wlr_ext_workspace_group_client_v1 *group =
+		group_client_from_resource(group_resource);
+	if (!group) {
+		return;
+	}
+
+	struct wlr_ext_workspace_v1_request *req = calloc(1, sizeof(*req));
+	if (!req) {
+		wl_resource_post_no_memory(group_resource);
+		return;
+	}
+	req->type = WLR_EXT_WORKSPACE_V1_REQUEST_CREATE_WORKSPACE;
+	req->group = group->group;
+	wl_list_insert(group->manager->requests.prev, &req->link);
+}
+
+static void group_handle_destroy(struct wl_client *client,
+		struct wl_resource *resource) {
+	wl_resource_destroy(resource);
+}
+
+static const struct ext_workspace_group_handle_v1_interface group_impl = {
+	.create_workspace = group_handle_create_workspace,
+	.destroy = group_handle_destroy,
+};
+
+static void destroy_workspace_client(
+		struct wlr_ext_workspace_client_v1 *workspace_client) {
+	wl_list_remove(&workspace_client->link);
+	wl_resource_set_user_data(workspace_client->resource, NULL);
+	free(workspace_client);
+}
+
+static void workspace_resource_destroy(struct wl_resource *resource) {
+	struct wlr_ext_workspace_client_v1 *workspace_client =
+		workspace_client_from_resource(resource);
+	if (workspace_client) {
+		destroy_workspace_client(workspace_client);
+	}
+}
+
+static struct wlr_ext_workspace_client_v1 *create_workspace_client(
+		struct wlr_ext_workspace_handle_v1 *workspace,
+		struct wlr_ext_workspace_manager_client_v1 *manager_client) {
+	struct wlr_ext_workspace_client_v1 *workspace_client =
+		calloc(1, sizeof(*workspace_client));
+	if (!workspace_client) {
+		return NULL;
+	}
+
+	struct wl_client *client = wl_resource_get_client(manager_client->resource);
+	workspace_client->resource = wl_resource_create(client,
+			&ext_workspace_handle_v1_interface,
+			wl_resource_get_version(manager_client->resource), 0);
+	if (!workspace_client->resource) {
+		free(workspace_client);
+		return NULL;
+	}
+	wl_resource_set_implementation(workspace_client->resource,
+		&workspace_impl, workspace_client, workspace_resource_destroy);
+
+	workspace_client->workspace = workspace;
+	workspace_client->manager = manager_client;
+	wl_list_insert(&workspace->clients, &workspace_client->link);
+
+	return workspace_client;
+}
+
+static void destroy_group_client(struct wlr_ext_workspace_group_client_v1 *group_client) {
+	wl_list_remove(&group_client->link);
+	wl_resource_set_user_data(group_client->resource, NULL);
+	free(group_client);
+}
+
+static void group_handle_resource_destroy(struct wl_resource *resource) {
+	struct wlr_ext_workspace_group_client_v1 *group_client =
+		group_client_from_resource(resource);
+	if (group_client) {
+		destroy_group_client(group_client);
+	}
+}
+
+static struct wlr_ext_workspace_group_client_v1 *create_group_client(
+		struct wlr_ext_workspace_group_handle_v1 *group,
+		struct wlr_ext_workspace_manager_client_v1 *manager_client) {
+	struct wlr_ext_workspace_group_client_v1 *group_client =
+		calloc(1, sizeof(*group_client));
+	if (!group_client) {
+		return NULL;
+	}
+
+	struct wl_client *client = wl_resource_get_client(manager_client->resource);
+	uint32_t version = wl_resource_get_version(manager_client->resource);
+	group_client->resource = wl_resource_create(client,
+		&ext_workspace_group_handle_v1_interface, version, 0);
+	if (group_client->resource == NULL) {
+		free(group_client);
+		return NULL;
+	}
+	wl_resource_set_implementation(group_client->resource, &group_impl,
+		group_client, group_handle_resource_destroy);
+
+	group_client->group = group;
+	group_client->manager = manager_client;
+	wl_list_insert(&group->clients, &group_client->link);
+
+	return group_client;
+}
+
+static void destroy_request(struct wlr_ext_workspace_v1_request *req) {
+	wl_list_remove(&req->link);
+	free(req->name);
+	free(req);
+}
+
+static void manager_handle_commit(struct wl_client *client, struct wl_resource *resource) {
+	struct wlr_ext_workspace_manager_client_v1 *manager =
+		manager_client_from_resource(resource);
+	if (!manager) {
+		return;
+	}
+
+	struct wlr_ext_workspace_v1_request *req, *tmp;
+	wl_list_for_each_safe(req, tmp, &manager->requests, link) {
+		switch (req->type) {
+		case WLR_EXT_WORKSPACE_V1_REQUEST_CREATE_WORKSPACE:
+			wl_signal_emit_mutable(
+				&req->group->events.create_workspace, req->name);
+			break;
+		case WLR_EXT_WORKSPACE_V1_REQUEST_ACTIVATE:
+			wl_signal_emit_mutable(
+				&req->workspace->events.activate, NULL);
+			break;
+		case WLR_EXT_WORKSPACE_V1_REQUEST_DEACTIVATE:
+			wl_signal_emit_mutable(
+				&req->workspace->events.deactivate, NULL);
+			break;
+		case WLR_EXT_WORKSPACE_V1_REQUEST_ASSIGN:
+			wl_signal_emit_mutable(
+				&req->workspace->events.assign, &req->group);
+			break;
+		case WLR_EXT_WORKSPACE_V1_REQUEST_REMOVE:
+			wl_signal_emit_mutable(
+				&req->workspace->events.remove, NULL);
+			break;
+		default:
+			abort();
+		}
+		destroy_request(req);
+	}
+}
+
+static void handle_idle(void *data) {
+	struct wlr_ext_workspace_manager_v1 *manager = data;
+
+	struct wlr_ext_workspace_manager_client_v1 *manager_client;
+	wl_list_for_each(manager_client, &manager->clients, link) {
+		ext_workspace_manager_v1_send_done(manager_client->resource);
+	}
+	manager->idle_source = NULL;
+}
+
+static void manager_schedule_done(struct wlr_ext_workspace_manager_v1 *manager) {
+	if (!manager->idle_source) {
+		manager->idle_source = wl_event_loop_add_idle(manager->event_loop,
+			handle_idle, manager);
+	}
+}
+
+static void workspace_send_details(struct wlr_ext_workspace_client_v1 *workspace_client) {
+	struct wlr_ext_workspace_handle_v1 *workspace = workspace_client->workspace;
+	struct wl_resource *resource = workspace_client->resource;
+
+	ext_workspace_handle_v1_send_capabilities(resource, workspace->caps);
+	if (workspace->coordinates.size > 0) {
+		ext_workspace_handle_v1_send_coordinates(resource, &workspace->coordinates);
+	}
+	if (workspace->name) {
+		ext_workspace_handle_v1_send_name(resource, workspace->name);
+	}
+	if (workspace->id) {
+		ext_workspace_handle_v1_send_id(resource, workspace->id);
+	}
+	ext_workspace_handle_v1_send_state(resource, workspace->state);
+	manager_schedule_done(workspace->manager);
+}
+
+static void manager_handle_stop(struct wl_client *client, struct wl_resource *resource) {
+	ext_workspace_manager_v1_send_finished(resource);
+	wl_resource_destroy(resource);
+}
+
+static const struct ext_workspace_manager_v1_interface manager_impl = {
+	.commit = manager_handle_commit,
+	.stop = manager_handle_stop,
+};
+
+static void destroy_manager_client(struct wlr_ext_workspace_manager_client_v1 *manager_client) {
+	struct wlr_ext_workspace_v1_request *req, *tmp;
+	wl_list_for_each_safe(req, tmp, &manager_client->requests, link) {
+		destroy_request(req);
+	}
+	wl_list_remove(&manager_client->link);
+	wl_resource_set_user_data(manager_client->resource, NULL);
+	free(manager_client);
+}
+
+static void manager_resource_destroy(struct wl_resource *resource) {
+	struct wlr_ext_workspace_manager_client_v1 *manager_client =
+		manager_client_from_resource(resource);
+	if (manager_client) {
+		destroy_manager_client(manager_client);
+	}
+}
+
+static void group_send_details(struct wlr_ext_workspace_group_client_v1 *group_client) {
+	struct wlr_ext_workspace_group_handle_v1 *group = group_client->group;
+	struct wl_resource *resource = group_client->resource;
+	struct wl_client *client = wl_resource_get_client(resource);
+
+	ext_workspace_group_handle_v1_send_capabilities(resource, group->caps);
+
+	struct wlr_ext_workspace_v1_group_output *group_output;
+	wl_list_for_each(group_output, &group->outputs, link) {
+		struct wl_resource *output_resource;
+		wl_resource_for_each(output_resource, &group_output->output->resources) {
+			if (wl_resource_get_client(output_resource) == client) {
+				ext_workspace_group_handle_v1_send_output_enter(
+					resource, output_resource);
+			}
+		}
+	}
+
+	manager_schedule_done(group->manager);
+}
+
+static void manager_bind(struct wl_client *client, void *data,
+		uint32_t version, uint32_t id) {
+	struct wlr_ext_workspace_manager_v1 *manager = data;
+
+	struct wlr_ext_workspace_manager_client_v1 *manager_client =
+		calloc(1, sizeof(*manager_client));
+	if (!manager_client) {
+		wl_client_post_no_memory(client);
+		return;
+	}
+
+	manager_client->manager = manager;
+	wl_list_init(&manager_client->requests);
+	wl_list_insert(&manager->clients, &manager_client->link);
+
+	manager_client->resource = wl_resource_create(client,
+			&ext_workspace_manager_v1_interface, version, id);
+	if (!manager_client->resource) {
+		free(manager_client);
+		wl_client_post_no_memory(client);
+		return;
+	}
+	wl_resource_set_implementation(manager_client->resource, &manager_impl,
+			manager_client, manager_resource_destroy);
+
+	struct wlr_ext_workspace_group_handle_v1 *group;
+	wl_list_for_each(group, &manager->groups, link) {
+		struct wlr_ext_workspace_group_client_v1 *group_client =
+			create_group_client(group, manager_client);
+		if (!group_client) {
+			wl_resource_post_no_memory(manager_client->resource);
+			continue;
+		}
+		ext_workspace_manager_v1_send_workspace_group(
+			manager_client->resource, group_client->resource);
+		group_send_details(group_client);
+	}
+
+	struct wlr_ext_workspace_handle_v1 *workspace;
+	wl_list_for_each(workspace, &manager->workspaces, link) {
+		struct wlr_ext_workspace_client_v1 *workspace_client =
+			create_workspace_client(workspace, manager_client);
+		if (!workspace) {
+			wl_client_post_no_memory(client);
+			continue;
+		}
+		ext_workspace_manager_v1_send_workspace(
+			manager_client->resource, workspace_client->resource);
+		workspace_send_details(workspace_client);
+
+		if (!workspace->group) {
+			continue;
+		}
+		struct wlr_ext_workspace_group_client_v1 *group_client;
+		wl_list_for_each(group_client, &workspace->group->clients, link) {
+			if (group_client->manager == manager_client) {
+				ext_workspace_group_handle_v1_send_workspace_enter(
+					group_client->resource, workspace_client->resource);
+			}
+		}
+	}
+
+	manager_schedule_done(manager);
+}
+
+static void manager_handle_display_destroy(struct wl_listener *listener, void *data) {
+	struct wlr_ext_workspace_manager_v1 *manager =
+		wl_container_of(listener, manager, display_destroy);
+
+	wl_signal_emit_mutable(&manager->events.destroy, NULL);
+	assert(wl_list_empty(&manager->events.destroy.listener_list));
+
+	struct wlr_ext_workspace_group_handle_v1 *group, *tmp;
+	wl_list_for_each_safe(group, tmp, &manager->groups, link) {
+		wlr_ext_workspace_group_handle_v1_destroy(group);
+	}
+
+	struct wlr_ext_workspace_handle_v1 *workspace, *tmp2;
+	wl_list_for_each_safe(workspace, tmp2, &manager->workspaces, link) {
+		wlr_ext_workspace_handle_v1_destroy(workspace);
+	}
+
+	struct wlr_ext_workspace_manager_client_v1 *manager_client, *tmp3;
+	wl_list_for_each_safe(manager_client, tmp3, &manager->clients, link) {
+		destroy_manager_client(manager_client);
+	}
+
+	if (manager->idle_source) {
+		wl_event_source_remove(manager->idle_source);
+	}
+
+	wl_list_remove(&manager->display_destroy.link);
+	wl_global_destroy(manager->global);
+	free(manager);
+}
+
+struct wlr_ext_workspace_manager_v1 *wlr_ext_workspace_manager_v1_create(
+		struct wl_display *display, uint32_t version) {
+	assert(version <= EXT_WORKSPACE_V1_VERSION);
+
+	struct wlr_ext_workspace_manager_v1 *manager = calloc(1, sizeof(*manager));
+	if (!manager) {
+		return NULL;
+	}
+
+	manager->global = wl_global_create(display,
+			&ext_workspace_manager_v1_interface,
+			version, manager, manager_bind);
+	if (!manager->global) {
+		free(manager);
+		return NULL;
+	}
+
+	manager->event_loop = wl_display_get_event_loop(display);
+
+	manager->display_destroy.notify = manager_handle_display_destroy;
+	wl_display_add_destroy_listener(display, &manager->display_destroy);
+
+	wl_list_init(&manager->groups);
+	wl_list_init(&manager->workspaces);
+	wl_list_init(&manager->clients);
+	wl_signal_init(&manager->events.destroy);
+
+	return manager;
+}
+
+struct wlr_ext_workspace_group_handle_v1 *wlr_ext_workspace_group_handle_v1_create(
+		struct wlr_ext_workspace_manager_v1 *manager, uint32_t caps) {
+	struct wlr_ext_workspace_group_handle_v1 *group = calloc(1, sizeof(*group));
+	if (!group) {
+		return NULL;
+	}
+
+	group->manager = manager;
+	group->caps = caps;
+
+	wl_list_init(&group->outputs);
+	wl_list_init(&group->clients);
+	wl_signal_init(&group->events.create_workspace);
+	wl_signal_init(&group->events.destroy);
+
+	wl_list_insert(manager->groups.prev, &group->link);
+
+	struct wlr_ext_workspace_manager_client_v1 *manager_client;
+	wl_list_for_each(manager_client, &manager->clients, link) {
+		struct wlr_ext_workspace_group_client_v1 *group_client =
+			create_group_client(group, manager_client);
+		if (!group_client) {
+			continue;
+		}
+		ext_workspace_manager_v1_send_workspace_group(
+			manager_client->resource, group_client->resource);
+		group_send_details(group_client);
+	}
+
+	manager_schedule_done(manager);
+
+	return group;
+}
+
+static void workspace_send_group(struct wlr_ext_workspace_handle_v1 *workspace,
+		struct wlr_ext_workspace_group_handle_v1 *group, bool enter) {
+
+	struct wlr_ext_workspace_client_v1 *workspace_client;
+	wl_list_for_each(workspace_client, &workspace->clients, link) {
+		struct wlr_ext_workspace_group_client_v1 *group_client;
+		wl_list_for_each(group_client, &group->clients, link) {
+			if (group_client->manager != workspace_client->manager) {
+				continue;
+			}
+			if (enter) {
+				ext_workspace_group_handle_v1_send_workspace_enter(
+					group_client->resource, workspace_client->resource);
+			} else {
+				ext_workspace_group_handle_v1_send_workspace_leave(
+					group_client->resource, workspace_client->resource);
+			}
+		}
+	}
+
+	manager_schedule_done(workspace->manager);
+}
+
+static void destroy_group_output(struct wlr_ext_workspace_v1_group_output *group_output) {
+	wl_list_remove(&group_output->output_bind.link);
+	wl_list_remove(&group_output->output_destroy.link);
+	wl_list_remove(&group_output->link);
+	free(group_output);
+}
+
+static void group_send_output(struct wlr_ext_workspace_group_handle_v1 *group,
+		struct wlr_output *output, bool enter) {
+
+	struct wlr_ext_workspace_group_client_v1 *group_client;
+	wl_list_for_each(group_client, &group->clients, link) {
+		struct wl_client *client =
+			wl_resource_get_client(group_client->resource);
+
+		struct wl_resource *output_resource;
+		wl_resource_for_each(output_resource, &output->resources) {
+			if (wl_resource_get_client(output_resource) != client) {
+				continue;
+			}
+			if (enter) {
+				ext_workspace_group_handle_v1_send_output_enter(
+					group_client->resource, output_resource);
+			} else {
+				ext_workspace_group_handle_v1_send_output_leave(
+					group_client->resource, output_resource);
+			}
+		}
+	}
+
+	manager_schedule_done(group->manager);
+}
+
+void wlr_ext_workspace_group_handle_v1_destroy(
+		struct wlr_ext_workspace_group_handle_v1 *group) {
+	wl_signal_emit_mutable(&group->events.destroy, NULL);
+
+	assert(wl_list_empty(&group->events.create_workspace.listener_list));
+	assert(wl_list_empty(&group->events.destroy.listener_list));
+
+	struct wlr_ext_workspace_handle_v1 *workspace;
+	wl_list_for_each(workspace, &group->manager->workspaces, link) {
+		if (workspace->group == group) {
+			workspace_send_group(workspace, group, false);
+			workspace->group = NULL;
+		}
+	}
+
+	struct wlr_ext_workspace_group_client_v1 *group_client, *tmp;
+	wl_list_for_each_safe(group_client, tmp, &group->clients, link) {
+		ext_workspace_group_handle_v1_send_removed(group_client->resource);
+		destroy_group_client(group_client);
+	}
+
+	struct wlr_ext_workspace_manager_client_v1 *manager_client;
+	wl_list_for_each(manager_client, &group->manager->clients, link) {
+		struct wlr_ext_workspace_v1_request *req, *tmp2;
+		wl_list_for_each_safe(req, tmp2, &manager_client->requests, link) {
+			if (req->group == group) {
+				destroy_request(req);
+			}
+		}
+	}
+
+	struct wlr_ext_workspace_v1_group_output *group_output, *tmp3;
+	wl_list_for_each_safe(group_output, tmp3, &group->outputs, link) {
+		group_send_output(group, group_output->output, false);
+		destroy_group_output(group_output);
+	}
+
+	manager_schedule_done(group->manager);
+
+	wl_list_remove(&group->link);
+	free(group);
+}
+
+static void handle_output_bind(struct wl_listener *listener, void *data) {
+	struct wlr_ext_workspace_v1_group_output *group_output =
+		wl_container_of(listener, group_output, output_bind);
+	struct wlr_output_event_bind *event = data;
+	struct wl_client *client = wl_resource_get_client(event->resource);
+
+	struct wlr_ext_workspace_group_client_v1 *group_client;
+	wl_list_for_each(group_client, &group_output->group->clients, link) {
+		if (wl_resource_get_client(group_client->resource) == client) {
+			ext_workspace_group_handle_v1_send_output_enter(
+				group_client->resource, event->resource);
+		}
+	}
+
+	manager_schedule_done(group_output->group->manager);
+}
+
+static void handle_output_destroy(struct wl_listener *listener, void *data) {
+	struct wlr_ext_workspace_v1_group_output *group_output =
+		wl_container_of(listener, group_output, output_destroy);
+	group_send_output(group_output->group, group_output->output, false);
+	destroy_group_output(group_output);
+}
+
+static struct wlr_ext_workspace_v1_group_output *get_group_output(
+		struct wlr_ext_workspace_group_handle_v1 *group,
+		struct wlr_output *output) {
+	struct wlr_ext_workspace_v1_group_output *group_output;
+	wl_list_for_each(group_output, &group->outputs, link) {
+		if (group_output->output == output) {
+			return group_output;
+		}
+	}
+	return NULL;
+}
+
+void wlr_ext_workspace_group_handle_v1_output_enter(
+		struct wlr_ext_workspace_group_handle_v1 *group,
+		struct wlr_output *output) {
+	if (get_group_output(group, output)) {
+		return;
+	}
+	struct wlr_ext_workspace_v1_group_output *group_output =
+		calloc(1, sizeof(*group_output));
+	if (!group_output) {
+		return;
+	}
+	group_output->output = output;
+	group_output->group = group;
+	wl_list_insert(&group->outputs, &group_output->link);
+
+	group_output->output_bind.notify = handle_output_bind;
+	wl_signal_add(&output->events.bind, &group_output->output_bind);
+	group_output->output_destroy.notify = handle_output_destroy;
+	wl_signal_add(&output->events.destroy, &group_output->output_destroy);
+
+	group_send_output(group, output, true);
+}
+
+void wlr_ext_workspace_group_handle_v1_output_leave(
+		struct wlr_ext_workspace_group_handle_v1 *group,
+		struct wlr_output *output) {
+	struct wlr_ext_workspace_v1_group_output *group_output =
+		get_group_output(group, output);
+	if (!group_output) {
+		return;
+	}
+
+	group_send_output(group, output, false);
+	destroy_group_output(group_output);
+}
+
+struct wlr_ext_workspace_handle_v1 *wlr_ext_workspace_handle_v1_create(
+		struct wlr_ext_workspace_manager_v1 *manager, const char *id, uint32_t caps) {
+	struct wlr_ext_workspace_handle_v1 *workspace = calloc(1, sizeof(*workspace));
+	if (!workspace) {
+		return NULL;
+	}
+
+	workspace->manager = manager;
+	workspace->caps = caps;
+
+	if (id) {
+		workspace->id = strdup(id);
+		if (!workspace->id) {
+			return NULL;
+		}
+	}
+
+	wl_list_init(&workspace->clients);
+	wl_array_init(&workspace->coordinates);
+	wl_signal_init(&workspace->events.activate);
+	wl_signal_init(&workspace->events.deactivate);
+	wl_signal_init(&workspace->events.remove);
+	wl_signal_init(&workspace->events.assign);
+	wl_signal_init(&workspace->events.destroy);
+
+	wl_list_insert(&manager->workspaces, &workspace->link);
+
+	struct wlr_ext_workspace_manager_client_v1 *manager_client;
+	wl_list_for_each(manager_client, &manager->clients, link) {
+		struct wlr_ext_workspace_client_v1 *workspace_client =
+			create_workspace_client(workspace, manager_client);
+		if (!workspace_client) {
+			continue;
+		}
+		ext_workspace_manager_v1_send_workspace(
+			manager_client->resource, workspace_client->resource);
+		workspace_send_details(workspace_client);
+	}
+
+	manager_schedule_done(manager);
+
+	return workspace;
+}
+
+void wlr_ext_workspace_handle_v1_destroy(struct wlr_ext_workspace_handle_v1 *workspace) {
+	wl_signal_emit_mutable(&workspace->events.destroy, NULL);
+
+	assert(wl_list_empty(&workspace->events.activate.listener_list));
+	assert(wl_list_empty(&workspace->events.deactivate.listener_list));
+	assert(wl_list_empty(&workspace->events.remove.listener_list));
+	assert(wl_list_empty(&workspace->events.assign.listener_list));
+	assert(wl_list_empty(&workspace->events.destroy.listener_list));
+
+	if (workspace->group) {
+		workspace_send_group(workspace, workspace->group, false);
+	}
+
+	struct wlr_ext_workspace_client_v1 *workspace_client, *tmp;
+	wl_list_for_each_safe(workspace_client, tmp, &workspace->clients, link) {
+		ext_workspace_handle_v1_send_removed(workspace_client->resource);
+		destroy_workspace_client(workspace_client);
+	}
+
+	struct wlr_ext_workspace_manager_client_v1 *manager_client;
+	wl_list_for_each(manager_client, &workspace->manager->clients, link) {
+		struct wlr_ext_workspace_v1_request *req, *tmp2;
+		wl_list_for_each_safe(req, tmp2, &manager_client->requests, link) {
+			if (req->workspace == workspace) {
+				destroy_request(req);
+			}
+		}
+	}
+
+	manager_schedule_done(workspace->manager);
+
+	wl_list_remove(&workspace->link);
+	wl_array_release(&workspace->coordinates);
+	free(workspace->id);
+	free(workspace->name);
+	free(workspace);
+}
+
+void wlr_ext_workspace_handle_v1_set_group(
+		struct wlr_ext_workspace_handle_v1 *workspace,
+		struct wlr_ext_workspace_group_handle_v1 *group) {
+	if (workspace->group == group) {
+		return;
+	}
+
+	if (workspace->group) {
+		workspace_send_group(workspace, group, false);
+	}
+	workspace->group = group;
+	if (group) {
+		workspace_send_group(workspace, group, true);
+	}
+}
+
+void wlr_ext_workspace_handle_v1_set_name(
+		struct wlr_ext_workspace_handle_v1 *workspace, const char *name) {
+	assert(name);
+
+	if (workspace->name && strcmp(workspace->name, name) == 0) {
+		return;
+	}
+
+	free(workspace->name);
+	workspace->name = strdup(name);
+	if (workspace->name == NULL) {
+		return;
+	}
+
+	struct wlr_ext_workspace_client_v1 *workspace_client;
+	wl_list_for_each(workspace_client, &workspace->clients, link) {
+		ext_workspace_handle_v1_send_name(
+			workspace_client->resource, workspace->name);
+	}
+
+	manager_schedule_done(workspace->manager);
+}
+
+static bool array_equal(struct wl_array *a, struct wl_array *b) {
+	return (a->size == b->size) &&
+		(a->size == 0 || memcmp(a->data, b->data, a->size) == 0);
+}
+
+void wlr_ext_workspace_handle_v1_set_coordinates(
+		struct wlr_ext_workspace_handle_v1 *workspace,
+		struct wl_array *coordinates) {
+	assert(coordinates);
+
+	if (array_equal(&workspace->coordinates, coordinates)) {
+		return;
+	}
+
+	wl_array_release(&workspace->coordinates);
+	wl_array_init(&workspace->coordinates);
+	wl_array_copy(&workspace->coordinates, coordinates);
+
+	struct wlr_ext_workspace_client_v1 *workspace_client;
+	wl_list_for_each(workspace_client, &workspace->clients, link) {
+		ext_workspace_handle_v1_send_coordinates(
+			workspace_client->resource, &workspace->coordinates);
+	}
+
+	manager_schedule_done(workspace->manager);
+}
+
+static void workspace_set_state(struct wlr_ext_workspace_handle_v1 *workspace,
+		enum ext_workspace_handle_v1_state state, bool enabled) {
+	uint32_t old_state = workspace->state;
+	if (enabled) {
+		workspace->state |= state;
+	} else {
+		workspace->state &= ~state;
+	}
+	if (old_state == workspace->state) {
+		return;
+	}
+
+	struct wlr_ext_workspace_client_v1 *workspace_client;
+	wl_list_for_each(workspace_client, &workspace->clients, link) {
+		ext_workspace_handle_v1_send_state(
+			workspace_client->resource, workspace->state);
+	}
+
+	manager_schedule_done(workspace->manager);
+}
+
+void wlr_ext_workspace_handle_v1_set_active(
+		struct wlr_ext_workspace_handle_v1 *workspace, bool enabled) {
+	workspace_set_state(workspace, EXT_WORKSPACE_HANDLE_V1_STATE_ACTIVE, enabled);
+}
+
+void wlr_ext_workspace_handle_v1_set_urgent(
+		struct wlr_ext_workspace_handle_v1 *workspace, bool enabled) {
+	workspace_set_state(workspace, EXT_WORKSPACE_HANDLE_V1_STATE_URGENT, enabled);
+}
+
+void wlr_ext_workspace_handle_v1_set_hidden(
+		struct wlr_ext_workspace_handle_v1 *workspace, bool enabled) {
+	workspace_set_state(workspace, EXT_WORKSPACE_HANDLE_V1_STATE_HIDDEN, enabled);
+}

src/ext-protocol/wlr_ext_workspace_v1.h

@@ -0,0 +1,109 @@
+/*
+ * This an unstable interface of wlroots. No guarantees are made regarding the
+ * future consistency of this API.
+ */
+#ifndef WLR_USE_UNSTABLE
+#error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features"
+#endif
+
+#ifndef WLR_TYPES_WLR_EXT_WORKSPACE_V1_H
+#define WLR_TYPES_WLR_EXT_WORKSPACE_V1_H
+
+#include <wayland-server-core.h>
+
+struct wlr_output;
+
+enum wlr_ext_workspace_group_handle_v1_cap {
+	WLR_EXT_WORKSPACE_GROUP_HANDLE_V1_CAP_CREATE_WORKSPACE = 1 << 0,
+};
+
+enum wlr_ext_workspace_handle_v1_cap {
+	WLR_EXT_WORKSPACE_HANDLE_V1_CAP_ACTIVATE = 1 << 0,
+	WLR_EXT_WORKSPACE_HANDLE_V1_CAP_DEACTIVATE = 1 << 1,
+	WLR_EXT_WORKSPACE_HANDLE_V1_CAP_REMOVE = 1 << 2,
+	WLR_EXT_WORKSPACE_HANDLE_V1_CAP_ASSIGN = 1 << 3,
+};
+
+struct wlr_ext_workspace_manager_v1 {
+	struct wl_global *global;
+	struct wl_list groups; // wlr_ext_workspace_group_handle_v1.link
+	struct wl_list workspaces; // wlr_ext_workspace_handle_v1.link
+
+	struct {
+		struct wl_signal destroy;
+	} events;
+
+	struct wl_list clients; // wlr_ext_workspace_manager_client_v1.link
+	struct wl_event_source *idle_source;
+	struct wl_event_loop *event_loop;
+	struct wl_listener display_destroy;
+};
+
+struct wlr_ext_workspace_group_handle_v1 {
+	struct wlr_ext_workspace_manager_v1 *manager;
+	uint32_t caps; // wlr_ext_workspace_group_handle_v1_cap
+	struct {
+		struct wl_signal create_workspace; // const char *
+		struct wl_signal destroy;
+	} events;
+
+	struct wl_list link; // wlr_ext_workspace_manager_v1.groups
+
+	struct wl_list outputs; // wlr_ext_workspace_v1_group_output.link
+	struct wl_list clients; // wlr_ext_workspace_manager_client_v1.link
+};
+
+struct wlr_ext_workspace_handle_v1 {
+	struct wlr_ext_workspace_manager_v1 *manager;
+	struct wlr_ext_workspace_group_handle_v1 *group; // May be NULL
+	char *id;
+	char *name;
+	struct wl_array coordinates;
+	uint32_t caps; // wlr_ext_workspace_handle_v1_cap
+	uint32_t state; // ext_workspace_handle_v1_state
+
+	struct {
+		struct wl_signal activate;
+		struct wl_signal deactivate;
+		struct wl_signal remove;
+		struct wl_signal assign; // wlr_ext_workspace_group_handle_v1
+		struct wl_signal destroy;
+	} events;
+
+	struct wl_list link; // wlr_ext_workspace_manager_v1.workspaces;
+
+	struct wl_list clients;
+};
+
+struct wlr_ext_workspace_manager_v1 *wlr_ext_workspace_manager_v1_create(
+	struct wl_display *display, uint32_t version);
+
+struct wlr_ext_workspace_group_handle_v1 *wlr_ext_workspace_group_handle_v1_create(
+	struct wlr_ext_workspace_manager_v1 *manager, uint32_t caps);
+void wlr_ext_workspace_group_handle_v1_destroy(
+	struct wlr_ext_workspace_group_handle_v1 *group);
+
+void wlr_ext_workspace_group_handle_v1_output_enter(
+	struct wlr_ext_workspace_group_handle_v1 *group, struct wlr_output *output);
+void wlr_ext_workspace_group_handle_v1_output_leave(
+	struct wlr_ext_workspace_group_handle_v1 *group, struct wlr_output *output);
+
+struct wlr_ext_workspace_handle_v1 *wlr_ext_workspace_handle_v1_create(
+	struct wlr_ext_workspace_manager_v1 *manager, const char *id, uint32_t caps);
+void wlr_ext_workspace_handle_v1_destroy(struct wlr_ext_workspace_handle_v1 *workspace);
+
+void wlr_ext_workspace_handle_v1_set_group(
+	struct wlr_ext_workspace_handle_v1 *workspace,
+	struct wlr_ext_workspace_group_handle_v1 *group);
+void wlr_ext_workspace_handle_v1_set_name(
+	struct wlr_ext_workspace_handle_v1 *workspace, const char *name);
+void wlr_ext_workspace_handle_v1_set_coordinates(
+	struct wlr_ext_workspace_handle_v1 *workspace, struct wl_array *coordinates);
+void wlr_ext_workspace_handle_v1_set_active(
+	struct wlr_ext_workspace_handle_v1 *workspace, bool enabled);
+void wlr_ext_workspace_handle_v1_set_urgent(
+	struct wlr_ext_workspace_handle_v1 *workspace, bool enabled);
+void wlr_ext_workspace_handle_v1_set_hidden(
+	struct wlr_ext_workspace_handle_v1 *workspace, bool enabled);
+
+#endif