Wire up xdg-toplevel-tag-v1

include/sway/server.h

@@ -119,6 +119,8 @@ struct sway_server {
 	struct wl_listener xdg_activation_v1_request_activate;
 	struct wl_listener xdg_activation_v1_new_token;
 
+	struct wl_listener xdg_toplevel_tag_manager_v1_set_tag;
+
 	struct wl_listener request_set_cursor_shape;
 
 	struct wlr_tearing_control_manager_v1 *tearing_control_v1;

include/sway/tree/view.h

@@ -25,6 +25,7 @@ enum sway_view_type {
 enum sway_view_prop {
 	VIEW_PROP_TITLE,
 	VIEW_PROP_APP_ID,
+	VIEW_PROP_TAG,
 	VIEW_PROP_CLASS,
 	VIEW_PROP_INSTANCE,
 	VIEW_PROP_WINDOW_TYPE,
@@ -128,6 +129,7 @@ struct sway_xdg_shell_view {
 	struct sway_view view;
 
 	struct wlr_scene_tree *image_capture_tree;
+	char *tag;
 
 	struct wl_listener commit;
 	struct wl_listener request_move;
@@ -236,6 +238,8 @@ const char *view_get_sandbox_app_id(struct sway_view *view);
 
 const char *view_get_sandbox_instance_id(struct sway_view *view);
 
+const char *view_get_tag(struct sway_view *view);
+
 const char *view_get_shell(struct sway_view *view);
 
 void view_get_constraints(struct sway_view *view, double *min_width,
@@ -360,4 +364,6 @@ void view_send_frame_done(struct sway_view *view);
 
 bool view_can_tear(struct sway_view *view);
 
+void xdg_toplevel_tag_manager_v1_handle_set_tag(struct wl_listener *listener, void *data);
+
 #endif

sway/desktop/xdg_shell.c

@@ -3,6 +3,7 @@
 #include <stdlib.h>
 #include <wayland-server-core.h>
 #include <wlr/types/wlr_xdg_shell.h>
+#include <wlr/types/wlr_xdg_toplevel_tag_v1.h>
 #include <wlr/util/edges.h>
 #include "log.h"
 #include "sway/decoration.h"
@@ -157,7 +158,8 @@ static void get_constraints(struct sway_view *view, double *min_width,
 
 static const char *get_string_prop(struct sway_view *view,
 		enum sway_view_prop prop) {
-	if (xdg_shell_view_from_view(view) == NULL) {
+	struct sway_xdg_shell_view *xdg_shell_view = xdg_shell_view_from_view(view);
+	if (xdg_shell_view == NULL) {
 		return NULL;
 	}
 	switch (prop) {
@@ -165,6 +167,8 @@ static const char *get_string_prop(struct sway_view *view,
 		return view->wlr_xdg_toplevel->title;
 	case VIEW_PROP_APP_ID:
 		return view->wlr_xdg_toplevel->app_id;
+	case VIEW_PROP_TAG:
+		return xdg_shell_view->tag;
 	default:
 		return NULL;
 	}
@@ -265,6 +269,7 @@ static void destroy(struct sway_view *view) {
 	if (xdg_shell_view == NULL) {
 		return;
 	}
+	free(xdg_shell_view->tag);
 	free(xdg_shell_view);
 }
 
@@ -581,3 +586,12 @@ void handle_xdg_shell_toplevel(struct wl_listener *listener, void *data) {
 
 	xdg_toplevel->base->data = xdg_shell_view;
 }
+
+void xdg_toplevel_tag_manager_v1_handle_set_tag(struct wl_listener *listener, void *data) {
+	const struct wlr_xdg_toplevel_tag_manager_v1_set_tag_event *event = data;
+	struct sway_view *view = view_from_wlr_xdg_surface(event->toplevel->base);
+	struct sway_xdg_shell_view *xdg_shell_view = xdg_shell_view_from_view(view);
+	free(xdg_shell_view->tag);
+	xdg_shell_view->tag = strdup(event->tag);
+	view_execute_criteria(view);
+}

sway/server.c

@@ -49,6 +49,7 @@
 #include <wlr/types/wlr_xdg_foreign_v1.h>
 #include <wlr/types/wlr_xdg_foreign_v2.h>
 #include <wlr/types/wlr_xdg_output_v1.h>
+#include <wlr/types/wlr_xdg_toplevel_tag_v1.h>
 #include <xf86drm.h>
 #include "config.h"
 #include "list.h"
@@ -439,6 +440,13 @@ bool server_init(struct sway_server *server) {
 	wl_signal_add(&server->xdg_activation_v1->events.new_token,
 		&server->xdg_activation_v1_new_token);
 
+	struct wlr_xdg_toplevel_tag_manager_v1 *xdg_toplevel_tag_manager_v1 =
+		wlr_xdg_toplevel_tag_manager_v1_create(server->wl_display, 1);
+	server->xdg_toplevel_tag_manager_v1_set_tag.notify =
+		xdg_toplevel_tag_manager_v1_handle_set_tag;
+	wl_signal_add(&xdg_toplevel_tag_manager_v1->events.set_tag,
+		&server->xdg_toplevel_tag_manager_v1_set_tag);
+
 	struct wlr_cursor_shape_manager_v1 *cursor_shape_manager =
 		wlr_cursor_shape_manager_v1_create(server->wl_display, 1);
 	server->request_set_cursor_shape.notify = handle_request_set_cursor_shape;
@@ -536,6 +544,7 @@ void server_fini(struct sway_server *server) {
 	wl_list_remove(&server->tearing_control_new_object.link);
 	wl_list_remove(&server->xdg_activation_v1_request_activate.link);
 	wl_list_remove(&server->xdg_activation_v1_new_token.link);
+	wl_list_remove(&server->xdg_toplevel_tag_manager_v1_set_tag.link);
 	wl_list_remove(&server->request_set_cursor_shape.link);
 	wl_list_remove(&server->new_foreign_toplevel_capture_request.link);
 	input_manager_finish(server->input);

sway/tree/view.c

@@ -190,6 +190,13 @@ const char *view_get_sandbox_instance_id(struct sway_view *view) {
 	return security_context ? security_context->instance_id : NULL;
 }
 
+const char *view_get_tag(struct sway_view *view) {
+	if (view->impl->get_string_prop) {
+		return view->impl->get_string_prop(view, VIEW_PROP_TAG);
+	}
+	return NULL;
+}
+
 const char *view_get_shell(struct sway_view *view) {
 	switch(view->type) {
 	case SWAY_VIEW_XDG_SHELL: