added ipc protocol

Makefile

@@ -17,12 +17,14 @@ DWLCFLAGS = `$(PKG_CONFIG) --cflags $(PKGS)` $(WLR_INCS) $(DWLCPPFLAGS) $(DWLDEV
 LDLIBS    = `$(PKG_CONFIG) --libs $(PKGS)` $(WLR_LIBS) -lm $(LIBS)
 
 all: dwl
-dwl: dwl.o util.o
+dwl: dwl.o util.o dwl-ipc-unstable-v2-protocol.o
-	$(CC) dwl.o util.o $(DWLCFLAGS) $(LDFLAGS) $(LDLIBS) -o $@
+	$(CC) dwl.o util.o dwl-ipc-unstable-v2-protocol.o $(DWLCFLAGS) $(LDFLAGS) $(LDLIBS) -o $@
 dwl.o: dwl.c client.h config.h config.mk cursor-shape-v1-protocol.h \
 	pointer-constraints-unstable-v1-protocol.h wlr-layer-shell-unstable-v1-protocol.h \
-	wlr-output-power-management-unstable-v1-protocol.h xdg-shell-protocol.h
+	wlr-output-power-management-unstable-v1-protocol.h xdg-shell-protocol.h \
+	dwl-ipc-unstable-v2-protocol.h
 util.o: util.c util.h
+dwl-ipc-unstable-v2-protocol.o: dwl-ipc-unstable-v2-protocol.c dwl-ipc-unstable-v2-protocol.h
 
 # wayland-scanner is a tool which generates C headers and rigging for Wayland
 # protocols, which are specified in XML. wlroots requires you to rig these up
@@ -45,6 +47,12 @@ wlr-output-power-management-unstable-v1-protocol.h:
 xdg-shell-protocol.h:
 	$(WAYLAND_SCANNER) server-header \
 		$(WAYLAND_PROTOCOLS)/stable/xdg-shell/xdg-shell.xml $@
+dwl-ipc-unstable-v2-protocol.h:
+	$(WAYLAND_SCANNER) server-header \
+		protocols/dwl-ipc-unstable-v2.xml $@
+dwl-ipc-unstable-v2-protocol.c:
+	$(WAYLAND_SCANNER) private-code \
+		protocols/dwl-ipc-unstable-v2.xml $@
 
 config.h:
 	cp config.def.h $@

dwl.c

@@ -68,6 +68,7 @@
 #include <xcb/xcb_icccm.h>
 #endif
 
+#include "dwl-ipc-unstable-v2-protocol.h"
 #include "util.h"
 
 /* macros */
@@ -141,6 +142,12 @@ typedef struct {
 	uint32_t resize; /* configure serial of a pending resize */
 } Client;
 
+typedef struct {
+	struct wl_list link;
+	struct wl_resource *resource;
+	Monitor *mon;
+} DwlIpcOutput;
+
 typedef struct {
 	uint32_t mod;
 	xkb_keysym_t keysym;
@@ -185,6 +192,7 @@ typedef struct {
 
 struct Monitor {
 	struct wl_list link;
+	struct wl_list dwl_ipc_outputs;
 	struct wlr_output *wlr_output;
 	struct wlr_scene_output *scene_output;
 	struct wlr_scene_rect *fullscreen_bg; /* See createmon() for info */
@@ -282,14 +290,24 @@ static void destroypointerconstraint(struct wl_listener *listener, void *data);
 static void destroysessionlock(struct wl_listener *listener, void *data);
 static void destroykeyboardgroup(struct wl_listener *listener, void *data);
 static Monitor *dirtomon(enum wlr_direction dir);
+static void dwl_ipc_manager_bind(struct wl_client *client, void *data, uint32_t version, uint32_t id);
+static void dwl_ipc_manager_destroy(struct wl_resource *resource);
+static void dwl_ipc_manager_get_output(struct wl_client *client, struct wl_resource *resource, uint32_t id, struct wl_resource *output);
+static void dwl_ipc_manager_release(struct wl_client *client, struct wl_resource *resource);
+static void dwl_ipc_output_destroy(struct wl_resource *resource);
+static void dwl_ipc_output_printstatus(Monitor *monitor);
+static void dwl_ipc_output_printstatus_to(DwlIpcOutput *ipc_output);
+static void dwl_ipc_output_set_client_tags(struct wl_client *client, struct wl_resource *resource, uint32_t and_tags, uint32_t xor_tags);
+static void dwl_ipc_output_set_layout(struct wl_client *client, struct wl_resource *resource, uint32_t index);
+static void dwl_ipc_output_set_tags(struct wl_client *client, struct wl_resource *resource, uint32_t tagmask, uint32_t toggle_tagset);
+static void dwl_ipc_output_release(struct wl_client *client, struct wl_resource *resource);
 static void focusclient(Client *c, int lift);
 static void focusmon(const Arg *arg);
 static void focusstack(const Arg *arg);
-static Client *focustop(Monitor *m, int onlytiled);
+static Client *focustop(Monitor *m);
 static void fullscreennotify(struct wl_listener *listener, void *data);
 static void gpureset(struct wl_listener *listener, void *data);
 static void handlesig(int signo);
-static void hidebehindmonocle(Monitor *m);
 static void incnmaster(const Arg *arg);
 static void inputdevice(struct wl_listener *listener, void *data);
 static int keybinding(uint32_t mods, xkb_keysym_t sym);
@@ -335,6 +353,7 @@ static void startdrag(struct wl_listener *listener, void *data);
 static void tag(const Arg *arg);
 static void tagmon(const Arg *arg);
 static void tile(Monitor *m);
+static void togglebar(const Arg *arg);
 static void togglefloating(const Arg *arg);
 static void togglefullscreen(const Arg *arg);
 static void toggletag(const Arg *arg);
@@ -437,6 +456,9 @@ static struct wl_listener request_start_drag = {.notify = requeststartdrag};
 static struct wl_listener start_drag = {.notify = startdrag};
 static struct wl_listener new_session_lock = {.notify = locksession};
 
+static struct zdwl_ipc_manager_v2_interface dwl_manager_implementation = {.release = dwl_ipc_manager_release, .get_output = dwl_ipc_manager_get_output};
+static struct zdwl_ipc_output_v2_interface dwl_output_implementation = {.release = dwl_ipc_output_release, .set_tags = dwl_ipc_output_set_tags, .set_layout = dwl_ipc_output_set_layout, .set_client_tags = dwl_ipc_output_set_client_tags};
+
 #ifdef XWAYLAND
 static void activatex11(struct wl_listener *listener, void *data);
 static void associatex11(struct wl_listener *listener, void *data);
@@ -519,7 +541,7 @@ arrange(Monitor *m)
 	}
 
 	wlr_scene_node_set_enabled(&m->fullscreen_bg->node,
-			(c = focustop(m, 0)) && c->isfullscreen);
+			(c = focustop(m)) && c->isfullscreen);
 
 	strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, LENGTH(m->ltsymbol));
 
@@ -730,6 +752,10 @@ cleanupmon(struct wl_listener *listener, void *data)
 	LayerSurface *l, *tmp;
 	size_t i;
 
+	DwlIpcOutput *ipc_output, *ipc_output_tmp;
+	wl_list_for_each_safe(ipc_output, ipc_output_tmp, &m->dwl_ipc_outputs, link)
+		wl_resource_destroy(ipc_output->resource);
+
 	/* m->layers[i] are intentionally not unlinked */
 	for (i = 0; i < LENGTH(m->layers); i++) {
 		wl_list_for_each_safe(l, tmp, &m->layers[i], link)
@@ -811,7 +837,7 @@ closemon(Monitor *m)
 		if (c->mon == m)
 			setmon(c, selmon, c->tags);
 	}
-	focusclient(focustop(selmon, 0), 1);
+	focusclient(focustop(selmon), 1);
 	printstatus();
 }
 
@@ -1050,6 +1076,8 @@ createmon(struct wl_listener *listener, void *data)
 	m = wlr_output->data = ecalloc(1, sizeof(*m));
 	m->wlr_output = wlr_output;
 
+	wl_list_init(&m->dwl_ipc_outputs);
+
 	for (i = 0; i < LENGTH(m->layers); i++)
 		wl_list_init(&m->layers[i]);
 
@@ -1248,7 +1276,7 @@ void
 destroydragicon(struct wl_listener *listener, void *data)
 {
 	/* Focus enter isn't sent during drag, so refocus the focused node. */
-	focusclient(focustop(selmon, 0), 1);
+	focusclient(focustop(selmon), 1);
 	motionnotify(0, NULL, 0, 0, 0, 0);
 	wl_list_remove(&listener->link);
 	free(listener);
@@ -1287,7 +1315,7 @@ destroylock(SessionLock *lock, int unlock)
 
 	wlr_scene_node_set_enabled(&locked_bg->node, 0);
 
-	focusclient(focustop(selmon, 0), 0);
+	focusclient(focustop(selmon), 0);
 	motionnotify(0, NULL, 0, 0, 0, 0);
 
 destroy:
@@ -1316,7 +1344,7 @@ destroylocksurface(struct wl_listener *listener, void *data)
 		surface = wl_container_of(cur_lock->surfaces.next, surface, link);
 		client_notify_enter(surface->surface, wlr_seat_get_keyboard(seat));
 	} else if (!locked) {
-		focusclient(focustop(selmon, 0), 1);
+		focusclient(focustop(selmon), 1);
 	} else {
 		wlr_seat_keyboard_clear_focus(seat);
 	}
@@ -1397,6 +1425,192 @@ dirtomon(enum wlr_direction dir)
 	return selmon;
 }
 
+void
+dwl_ipc_manager_bind(struct wl_client *client, void *data, uint32_t version, uint32_t id)
+{
+	struct wl_resource *manager_resource = wl_resource_create(client, &zdwl_ipc_manager_v2_interface, version, id);
+	if (!manager_resource) {
+		wl_client_post_no_memory(client);
+		return;
+	}
+	wl_resource_set_implementation(manager_resource, &dwl_manager_implementation, NULL, dwl_ipc_manager_destroy);
+
+	zdwl_ipc_manager_v2_send_tags(manager_resource, TAGCOUNT);
+
+	for (unsigned int i = 0; i < LENGTH(layouts); i++)
+		zdwl_ipc_manager_v2_send_layout(manager_resource, layouts[i].symbol);
+}
+
+void
+dwl_ipc_manager_destroy(struct wl_resource *resource)
+{
+	/* No state to destroy */
+}
+
+void
+dwl_ipc_manager_get_output(struct wl_client *client, struct wl_resource *resource, uint32_t id, struct wl_resource *output)
+{
+	DwlIpcOutput *ipc_output;
+	Monitor *monitor = wlr_output_from_resource(output)->data;
+	struct wl_resource *output_resource = wl_resource_create(client, &zdwl_ipc_output_v2_interface, wl_resource_get_version(resource), id);
+	if (!output_resource)
+		return;
+
+	ipc_output = ecalloc(1, sizeof(*ipc_output));
+	ipc_output->resource = output_resource;
+	ipc_output->mon = monitor;
+	wl_resource_set_implementation(output_resource, &dwl_output_implementation, ipc_output, dwl_ipc_output_destroy);
+	wl_list_insert(&monitor->dwl_ipc_outputs, &ipc_output->link);
+	dwl_ipc_output_printstatus_to(ipc_output);
+}
+
+void
+dwl_ipc_manager_release(struct wl_client *client, struct wl_resource *resource)
+{
+	wl_resource_destroy(resource);
+}
+
+static void
+dwl_ipc_output_destroy(struct wl_resource *resource)
+{
+	DwlIpcOutput *ipc_output = wl_resource_get_user_data(resource);
+	wl_list_remove(&ipc_output->link);
+	free(ipc_output);
+}
+
+void
+dwl_ipc_output_printstatus(Monitor *monitor)
+{
+	DwlIpcOutput *ipc_output;
+	wl_list_for_each(ipc_output, &monitor->dwl_ipc_outputs, link)
+		dwl_ipc_output_printstatus_to(ipc_output);
+}
+
+void
+dwl_ipc_output_printstatus_to(DwlIpcOutput *ipc_output)
+{
+	Monitor *monitor = ipc_output->mon;
+	Client *c, *focused;
+	int tagmask, state, numclients, focused_client, tag;
+	const char *title, *appid;
+	focused = focustop(monitor);
+	zdwl_ipc_output_v2_send_active(ipc_output->resource, monitor == selmon);
+
+	for (tag = 0 ; tag < TAGCOUNT; tag++) {
+		numclients = state = focused_client = 0;
+		tagmask = 1 << tag;
+		if ((tagmask & monitor->tagset[monitor->seltags]) != 0)
+			state |= ZDWL_IPC_OUTPUT_V2_TAG_STATE_ACTIVE;
+
+		wl_list_for_each(c, &clients, link) {
+			if (c->mon != monitor)
+				continue;
+			if (!(c->tags & tagmask))
+				continue;
+			if (c == focused)
+				focused_client = 1;
+			if (c->isurgent)
+				state |= ZDWL_IPC_OUTPUT_V2_TAG_STATE_URGENT;
+
+			numclients++;
+		}
+		zdwl_ipc_output_v2_send_tag(ipc_output->resource, tag, state, numclients, focused_client);
+	}
+	title = focused ? client_get_title(focused) : "";
+	appid = focused ? client_get_appid(focused) : "";
+
+	zdwl_ipc_output_v2_send_layout(ipc_output->resource, monitor->lt[monitor->sellt] - layouts);
+	zdwl_ipc_output_v2_send_title(ipc_output->resource, title);
+	zdwl_ipc_output_v2_send_appid(ipc_output->resource, appid);
+	zdwl_ipc_output_v2_send_layout_symbol(ipc_output->resource, monitor->ltsymbol);
+	if (wl_resource_get_version(ipc_output->resource) >= ZDWL_IPC_OUTPUT_V2_FULLSCREEN_SINCE_VERSION) {
+		zdwl_ipc_output_v2_send_fullscreen(ipc_output->resource, focused ? focused->isfullscreen : 0);
+	}
+	if (wl_resource_get_version(ipc_output->resource) >= ZDWL_IPC_OUTPUT_V2_FLOATING_SINCE_VERSION) {
+		zdwl_ipc_output_v2_send_floating(ipc_output->resource, focused ? focused->isfloating : 0);
+	}
+	zdwl_ipc_output_v2_send_frame(ipc_output->resource);
+}
+
+void
+dwl_ipc_output_set_client_tags(struct wl_client *client, struct wl_resource *resource, uint32_t and_tags, uint32_t xor_tags)
+{
+	DwlIpcOutput *ipc_output;
+	Monitor *monitor;
+	Client *selected_client;
+	unsigned int newtags = 0;
+
+	ipc_output = wl_resource_get_user_data(resource);
+	if (!ipc_output)
+		return;
+
+	monitor = ipc_output->mon;
+	selected_client = focustop(monitor);
+	if (!selected_client)
+		return;
+
+	newtags = (selected_client->tags & and_tags) ^ xor_tags;
+	if (!newtags)
+		return;
+
+	selected_client->tags = newtags;
+	if (selmon == monitor)
+		focusclient(focustop(monitor), 1);
+	arrange(selmon);
+	printstatus();
+}
+
+void
+dwl_ipc_output_set_layout(struct wl_client *client, struct wl_resource *resource, uint32_t index)
+{
+	DwlIpcOutput *ipc_output;
+	Monitor *monitor;
+
+	ipc_output = wl_resource_get_user_data(resource);
+	if (!ipc_output)
+		return;
+
+	monitor = ipc_output->mon;
+	if (index >= LENGTH(layouts))
+		return;
+	if (index != monitor->lt[monitor->sellt] - layouts)
+		monitor->sellt ^= 1;
+
+	monitor->lt[monitor->sellt] = &layouts[index];
+	arrange(monitor);
+	printstatus();
+}
+
+void
+dwl_ipc_output_set_tags(struct wl_client *client, struct wl_resource *resource, uint32_t tagmask, uint32_t toggle_tagset)
+{
+	DwlIpcOutput *ipc_output;
+	Monitor *monitor;
+	unsigned int newtags = tagmask & TAGMASK;
+
+	ipc_output = wl_resource_get_user_data(resource);
+	if (!ipc_output)
+		return;
+	monitor = ipc_output->mon;
+
+	if (!newtags || newtags == monitor->tagset[monitor->seltags])
+		return;
+	if (toggle_tagset)
+		monitor->seltags ^= 1;
+
+	monitor->tagset[monitor->seltags] = newtags;
+	if (selmon == monitor)
+		focusclient(focustop(monitor), 1);
+	arrange(monitor);
+	printstatus();
+}
+
+void
+dwl_ipc_output_release(struct wl_client *client, struct wl_resource *resource)
+{
+	wl_resource_destroy(resource);
+}
+
 void
 focusclient(Client *c, int lift)
 {
@@ -1427,7 +1641,6 @@ focusclient(Client *c, int lift)
 		wl_list_insert(&fstack, &c->flink);
 		selmon = c->mon;
 		c->isurgent = 0;
-		hidebehindmonocle(c->mon);
 
 		/* Don't change border color if there is an exclusive focus or we are
 		 * handling a drag operation */
@@ -1481,14 +1694,14 @@ focusmon(const Arg *arg)
 			selmon = dirtomon(arg->i);
 		while (!selmon->wlr_output->enabled && i++ < nmons);
 	}
-	focusclient(focustop(selmon, 0), 1);
+	focusclient(focustop(selmon), 1);
 }
 
 void
 focusstack(const Arg *arg)
 {
 	/* Focus the next or previous client (in tiling order) on selmon */
-	Client *c, *sel = focustop(selmon, 0);
+	Client *c, *sel = focustop(selmon);
 	if (!sel || (sel->isfullscreen && !client_has_children(sel)))
 		return;
 	if (arg->i > 0) {
@@ -1514,16 +1727,13 @@ focusstack(const Arg *arg)
  * will focus the topmost client of this mon, when actually will
  * only return that client */
 Client *
-focustop(Monitor *m, int onlytiled)
+focustop(Monitor *m)
 {
 	Client *c;
 	wl_list_for_each(c, &fstack, flink) {
-		if (VISIBLEON(c, m)) {
+		if (VISIBLEON(c, m))
-			if (onlytiled && c->isfloating)
-				continue;
 			return c;
 	}
-	}
 	return NULL;
 }
 
@@ -1568,25 +1778,6 @@ handlesig(int signo)
 		quit(NULL);
 }
 
-void
-hidebehindmonocle(Monitor *m)
-{
-	Client *c;
-	if (m && m->lt[m->sellt]->arrange == monocle) {
-		wl_list_for_each(c, &clients, link) {
-			if (c->mon != m)
-				continue;
-			wlr_scene_node_set_enabled(&c->scene->node, VISIBLEON(c, m) && c->isfloating);
-		}
-
-		c = NULL;
-
-		/* Enable top tiled client, fullscreen is considered tiled */
-		if ((c = focustop(m, 1)))
-			wlr_scene_node_set_enabled(&c->scene->node, 1);
-	}
-}
-
 void
 incnmaster(const Arg *arg)
 {
@@ -1725,7 +1916,7 @@ keyrepeat(void *data)
 void
 killclient(const Arg *arg)
 {
-	Client *sel = focustop(selmon, 0);
+	Client *sel = focustop(selmon);
 	if (sel)
 		client_send_close(sel);
 }
@@ -1854,7 +2045,8 @@ monocle(Monitor *m)
 	}
 	if (n)
 		snprintf(m->ltsymbol, LENGTH(m->ltsymbol), "[%d]", n);
-	hidebehindmonocle(m);
+	if ((c = focustop(m)))
+		wlr_scene_node_raise_to_top(&c->scene->node);
 }
 
 void
@@ -2109,38 +2301,9 @@ void
 printstatus(void)
 {
 	Monitor *m = NULL;
-	Client *c;
-	uint32_t occ, urg, sel;
 
-	wl_list_for_each(m, &mons, link) {
+	wl_list_for_each(m, &mons, link)
-		occ = urg = 0;
+		dwl_ipc_output_printstatus(m);
-		wl_list_for_each(c, &clients, link) {
-			if (c->mon != m)
-				continue;
-			occ |= c->tags;
-			if (c->isurgent)
-				urg |= c->tags;
-		}
-		if ((c = focustop(m, 0))) {
-			printf("%s title %s\n", m->wlr_output->name, client_get_title(c));
-			printf("%s appid %s\n", m->wlr_output->name, client_get_appid(c));
-			printf("%s fullscreen %d\n", m->wlr_output->name, c->isfullscreen);
-			printf("%s floating %d\n", m->wlr_output->name, c->isfloating);
-			sel = c->tags;
-		} else {
-			printf("%s title \n", m->wlr_output->name);
-			printf("%s appid \n", m->wlr_output->name);
-			printf("%s fullscreen \n", m->wlr_output->name);
-			printf("%s floating \n", m->wlr_output->name);
-			sel = 0;
-		}
-
-		printf("%s selmon %u\n", m->wlr_output->name, m == selmon);
-		printf("%s tags %"PRIu32" %"PRIu32" %"PRIu32" %"PRIu32"\n",
-			m->wlr_output->name, occ, m->tagset[m->seltags], sel, urg);
-		printf("%s layout %s\n", m->wlr_output->name, m->ltsymbol);
-	}
-	fflush(stdout);
 }
 
 void
@@ -2435,7 +2598,7 @@ setmon(Client *c, Monitor *m, uint32_t newtags)
 		setfullscreen(c, c->isfullscreen); /* This will call arrange(c->mon) */
 		setfloating(c, c->isfloating);
 	}
-	focusclient(focustop(selmon, 0), 1);
+	focusclient(focustop(selmon), 1);
 }
 
 void
@@ -2664,6 +2827,8 @@ setup(void)
 	wl_signal_add(&output_mgr->events.apply, &output_mgr_apply);
 	wl_signal_add(&output_mgr->events.test, &output_mgr_test);
 
+	wl_global_create(dpy, &zdwl_ipc_manager_v2_interface, 2, NULL, dwl_ipc_manager_bind);
+
 	/* Make sure XWayland clients don't connect to the parent X server,
 	 * e.g when running in the x11 backend or the wayland backend and the
 	 * compositor has Xwayland support */
@@ -2709,12 +2874,12 @@ startdrag(struct wl_listener *listener, void *data)
 void
 tag(const Arg *arg)
 {
-	Client *sel = focustop(selmon, 0);
+	Client *sel = focustop(selmon);
 	if (!sel || (arg->ui & TAGMASK) == 0)
 		return;
 
 	sel->tags = arg->ui & TAGMASK;
-	focusclient(focustop(selmon, 0), 1);
+	focusclient(focustop(selmon), 1);
 	arrange(selmon);
 	printstatus();
 }
@@ -2722,7 +2887,7 @@ tag(const Arg *arg)
 void
 tagmon(const Arg *arg)
 {
-	Client *sel = focustop(selmon, 0);
+	Client *sel = focustop(selmon);
 	if (sel)
 		setmon(sel, dirtomon(arg->i), 0);
 }
@@ -2761,10 +2926,17 @@ tile(Monitor *m)
 	}
 }
 
+void
+togglebar(const Arg *arg) {
+	DwlIpcOutput *ipc_output;
+	wl_list_for_each(ipc_output, &selmon->dwl_ipc_outputs, link)
+		zdwl_ipc_output_v2_send_toggle_visibility(ipc_output->resource);
+}
+
 void
 togglefloating(const Arg *arg)
 {
-	Client *sel = focustop(selmon, 0);
+	Client *sel = focustop(selmon);
 	/* return if fullscreen */
 	if (sel && !sel->isfullscreen)
 		setfloating(sel, !sel->isfloating);
@@ -2773,7 +2945,7 @@ togglefloating(const Arg *arg)
 void
 togglefullscreen(const Arg *arg)
 {
-	Client *sel = focustop(selmon, 0);
+	Client *sel = focustop(selmon);
 	if (sel)
 		setfullscreen(sel, !sel->isfullscreen);
 }
@@ -2782,12 +2954,12 @@ void
 toggletag(const Arg *arg)
 {
 	uint32_t newtags;
-	Client *sel = focustop(selmon, 0);
+	Client *sel = focustop(selmon);
 	if (!sel || !(newtags = sel->tags ^ (arg->ui & TAGMASK)))
 		return;
 
 	sel->tags = newtags;
-	focusclient(focustop(selmon, 0), 1);
+	focusclient(focustop(selmon), 1);
 	arrange(selmon);
 	printstatus();
 }
@@ -2800,7 +2972,7 @@ toggleview(const Arg *arg)
 		return;
 
 	selmon->tagset[selmon->seltags] = newtagset;
-	focusclient(focustop(selmon, 0), 1);
+	focusclient(focustop(selmon), 1);
 	arrange(selmon);
 	printstatus();
 }
@@ -2824,7 +2996,7 @@ unmaplayersurfacenotify(struct wl_listener *listener, void *data)
 	if (l->layer_surface->output && (l->mon = l->layer_surface->output->data))
 		arrangelayers(l->mon);
 	if (l->layer_surface->surface == seat->keyboard_state.focused_surface)
-		focusclient(focustop(selmon, 0), 1);
+		focusclient(focustop(selmon), 1);
 	motionnotify(0, NULL, 0, 0, 0, 0);
 }
 
@@ -2841,7 +3013,7 @@ unmapnotify(struct wl_listener *listener, void *data)
 	if (client_is_unmanaged(c)) {
 		if (c == exclusive_focus) {
 			exclusive_focus = NULL;
-			focusclient(focustop(selmon, 0), 1);
+			focusclient(focustop(selmon), 1);
 		}
 	} else {
 		wl_list_remove(&c->link);
@@ -2922,7 +3094,7 @@ updatemons(struct wl_listener *listener, void *data)
 		/* Don't move clients to the left output when plugging monitors */
 		arrange(m);
 		/* make sure fullscreen clients have the right size */
-		if ((c = focustop(m, 0)) && c->isfullscreen)
+		if ((c = focustop(m)) && c->isfullscreen)
 			resize(c, m->m, 0);
 
 		/* Try to re-set the gamma LUT when updating monitors,
@@ -2942,7 +3114,7 @@ updatemons(struct wl_listener *listener, void *data)
 			if (!c->mon && client_surface(c)->mapped)
 				setmon(c, selmon, c->tags);
 		}
-		focusclient(focustop(selmon, 0), 1);
+		focusclient(focustop(selmon), 1);
 		if (selmon->lock_surface) {
 			client_notify_enter(selmon->lock_surface->surface,
 					wlr_seat_get_keyboard(seat));
@@ -2964,7 +3136,7 @@ void
 updatetitle(struct wl_listener *listener, void *data)
 {
 	Client *c = wl_container_of(listener, c, set_title);
-	if (c == focustop(c->mon, 0))
+	if (c == focustop(c->mon))
 		printstatus();
 }
 
@@ -2974,7 +3146,7 @@ urgent(struct wl_listener *listener, void *data)
 	struct wlr_xdg_activation_v1_request_activate_event *event = data;
 	Client *c = NULL;
 	toplevel_from_wlr_surface(event->surface, &c, NULL);
-	if (!c || c == focustop(selmon, 0))
+	if (!c || c == focustop(selmon))
 		return;
 
 	c->isurgent = 1;
@@ -2992,7 +3164,7 @@ view(const Arg *arg)
 	selmon->seltags ^= 1; /* toggle sel tagset */
 	if (arg->ui & TAGMASK)
 		selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
-	focusclient(focustop(selmon, 0), 1);
+	focusclient(focustop(selmon), 1);
 	arrange(selmon);
 	printstatus();
 }
@@ -3063,7 +3235,7 @@ xytonode(double x, double y, struct wlr_surface **psurface,
 void
 zoom(const Arg *arg)
 {
-	Client *c, *sel = focustop(selmon, 0);
+	Client *c, *sel = focustop(selmon);
 
 	if (!sel || !selmon || !selmon->lt[selmon->sellt]->arrange || sel->isfloating)
 		return;
@@ -3174,7 +3346,7 @@ sethints(struct wl_listener *listener, void *data)
 {
 	Client *c = wl_container_of(listener, c, set_hints);
 	struct wlr_surface *surface = client_surface(c);
-	if (c == focustop(selmon, 0) || !c->surface.xwayland->hints)
+	if (c == focustop(selmon) || !c->surface.xwayland->hints)
 		return;
 
 	c->isurgent = xcb_icccm_wm_hints_get_urgency(c->surface.xwayland->hints);

hide-behind-monocle.patch

@@ -1,332 +0,0 @@
-From 8022376ee59d616831271dbc9f289a8bfd4fedda Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Leonardo=20Hern=C3=A1ndez=20Hern=C3=A1ndez?=
- <leohdz172@proton.me>
-Date: Sat, 8 Jul 2023 17:25:16 -0600
-Subject: [PATCH] hide behind monocle
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Signed-off-by: Leonardo Hernández Hernández <leohdz172@proton.me>
----
- dwl.c | 87 +++++++++++++++++++++++++++++++++++++----------------------
- 1 file changed, 55 insertions(+), 32 deletions(-)
-
-diff --git a/dwl.c b/dwl.c
-index ad21e1ba..cad3b0b2 100644
---- a/dwl.c
-+++ b/dwl.c
-@@ -285,10 +285,11 @@ static Monitor *dirtomon(enum wlr_direction dir);
- static void focusclient(Client *c, int lift);
- static void focusmon(const Arg *arg);
- static void focusstack(const Arg *arg);
--static Client *focustop(Monitor *m);
-+static Client *focustop(Monitor *m, int onlytiled);
- static void fullscreennotify(struct wl_listener *listener, void *data);
- static void gpureset(struct wl_listener *listener, void *data);
- static void handlesig(int signo);
-+static void hidebehindmonocle(Monitor *m);
- static void incnmaster(const Arg *arg);
- static void inputdevice(struct wl_listener *listener, void *data);
- static int keybinding(uint32_t mods, xkb_keysym_t sym);
-@@ -518,7 +519,7 @@ arrange(Monitor *m)
- 	}
- 
- 	wlr_scene_node_set_enabled(&m->fullscreen_bg->node,
--			(c = focustop(m)) && c->isfullscreen);
-+			(c = focustop(m, 0)) && c->isfullscreen);
- 
- 	strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, LENGTH(m->ltsymbol));
- 
-@@ -807,7 +808,7 @@ closemon(Monitor *m)
- 		if (c->mon == m)
- 			setmon(c, selmon, c->tags);
- 	}
--	focusclient(focustop(selmon), 1);
-+	focusclient(focustop(selmon, 0), 1);
- 	printstatus();
- }
- 
-@@ -1243,7 +1244,7 @@ void
- destroydragicon(struct wl_listener *listener, void *data)
- {
- 	/* Focus enter isn't sent during drag, so refocus the focused node. */
--	focusclient(focustop(selmon), 1);
-+	focusclient(focustop(selmon, 0), 1);
- 	motionnotify(0, NULL, 0, 0, 0, 0);
- 	wl_list_remove(&listener->link);
- }
-@@ -1280,7 +1281,7 @@ destroylock(SessionLock *lock, int unlock)
- 
- 	wlr_scene_node_set_enabled(&locked_bg->node, 0);
- 
--	focusclient(focustop(selmon), 0);
-+	focusclient(focustop(selmon, 0), 0);
- 	motionnotify(0, NULL, 0, 0, 0, 0);
- 
- destroy:
-@@ -1309,7 +1310,7 @@ destroylocksurface(struct wl_listener *listener, void *data)
- 		surface = wl_container_of(cur_lock->surfaces.next, surface, link);
- 		client_notify_enter(surface->surface, wlr_seat_get_keyboard(seat));
- 	} else if (!locked) {
--		focusclient(focustop(selmon), 1);
-+		focusclient(focustop(selmon, 0), 1);
- 	} else {
- 		wlr_seat_keyboard_clear_focus(seat);
- 	}
-@@ -1420,6 +1421,7 @@ focusclient(Client *c, int lift)
- 		wl_list_insert(&fstack, &c->flink);
- 		selmon = c->mon;
- 		c->isurgent = 0;
-+		hidebehindmonocle(c->mon);
- 
- 		/* Don't change border color if there is an exclusive focus or we are
- 		 * handling a drag operation */
-@@ -1473,14 +1475,14 @@ focusmon(const Arg *arg)
- 			selmon = dirtomon(arg->i);
- 		while (!selmon->wlr_output->enabled && i++ < nmons);
- 	}
--	focusclient(focustop(selmon), 1);
-+	focusclient(focustop(selmon, 0), 1);
- }
- 
- void
- focusstack(const Arg *arg)
- {
- 	/* Focus the next or previous client (in tiling order) on selmon */
--	Client *c, *sel = focustop(selmon);
-+	Client *c, *sel = focustop(selmon, 0);
- 	if (!sel || (sel->isfullscreen && !client_has_children(sel)))
- 		return;
- 	if (arg->i > 0) {
-@@ -1506,12 +1508,15 @@ focusstack(const Arg *arg)
-  * will focus the topmost client of this mon, when actually will
-  * only return that client */
- Client *
--focustop(Monitor *m)
-+focustop(Monitor *m, int onlytiled)
- {
- 	Client *c;
- 	wl_list_for_each(c, &fstack, flink) {
--		if (VISIBLEON(c, m))
-+		if (VISIBLEON(c, m)) {
-+			if (onlytiled && c->isfloating)
-+				continue;
- 			return c;
-+		}
- 	}
- 	return NULL;
- }
-@@ -1557,6 +1562,25 @@ handlesig(int signo)
- 		quit(NULL);
- }
- 
-+void
-+hidebehindmonocle(Monitor *m)
-+{
-+	Client *c;
-+	if (m && m->lt[m->sellt]->arrange == monocle) {
-+		wl_list_for_each(c, &clients, link) {
-+			if (c->mon != m)
-+				continue;
-+			wlr_scene_node_set_enabled(&c->scene->node, VISIBLEON(c, m) && c->isfloating);
-+		}
-+
-+		c = NULL;
-+
-+		/* Enable top tiled client, fullscreen is considered tiled */
-+		if ((c = focustop(m, 1)))
-+			wlr_scene_node_set_enabled(&c->scene->node, 1);
-+	}
-+}
-+
- void
- incnmaster(const Arg *arg)
- {
-@@ -1695,7 +1719,7 @@ keyrepeat(void *data)
- void
- killclient(const Arg *arg)
- {
--	Client *sel = focustop(selmon);
-+	Client *sel = focustop(selmon, 0);
- 	if (sel)
- 		client_send_close(sel);
- }
-@@ -1824,8 +1848,7 @@ monocle(Monitor *m)
- 	}
- 	if (n)
- 		snprintf(m->ltsymbol, LENGTH(m->ltsymbol), "[%d]", n);
--	if ((c = focustop(m)))
--		wlr_scene_node_raise_to_top(&c->scene->node);
-+	hidebehindmonocle(m);
- }
- 
- void
-@@ -2092,7 +2115,7 @@ printstatus(void)
- 			if (c->isurgent)
- 				urg |= c->tags;
- 		}
--		if ((c = focustop(m))) {
-+		if ((c = focustop(m, 0))) {
- 			printf("%s title %s\n", m->wlr_output->name, client_get_title(c));
- 			printf("%s appid %s\n", m->wlr_output->name, client_get_appid(c));
- 			printf("%s fullscreen %d\n", m->wlr_output->name, c->isfullscreen);
-@@ -2406,7 +2429,7 @@ setmon(Client *c, Monitor *m, uint32_t newtags)
- 		setfullscreen(c, c->isfullscreen); /* This will call arrange(c->mon) */
- 		setfloating(c, c->isfloating);
- 	}
--	focusclient(focustop(selmon), 1);
-+	focusclient(focustop(selmon, 0), 1);
- }
- 
- void
-@@ -2680,12 +2703,12 @@ startdrag(struct wl_listener *listener, void *data)
- void
- tag(const Arg *arg)
- {
--	Client *sel = focustop(selmon);
-+	Client *sel = focustop(selmon, 0);
- 	if (!sel || (arg->ui & TAGMASK) == 0)
- 		return;
- 
- 	sel->tags = arg->ui & TAGMASK;
--	focusclient(focustop(selmon), 1);
-+	focusclient(focustop(selmon, 0), 1);
- 	arrange(selmon);
- 	printstatus();
- }
-@@ -2693,7 +2716,7 @@ tag(const Arg *arg)
- void
- tagmon(const Arg *arg)
- {
--	Client *sel = focustop(selmon);
-+	Client *sel = focustop(selmon, 0);
- 	if (sel)
- 		setmon(sel, dirtomon(arg->i), 0);
- }
-@@ -2735,7 +2758,7 @@ tile(Monitor *m)
- void
- togglefloating(const Arg *arg)
- {
--	Client *sel = focustop(selmon);
-+	Client *sel = focustop(selmon, 0);
- 	/* return if fullscreen */
- 	if (sel && !sel->isfullscreen)
- 		setfloating(sel, !sel->isfloating);
-@@ -2744,7 +2767,7 @@ togglefloating(const Arg *arg)
- void
- togglefullscreen(const Arg *arg)
- {
--	Client *sel = focustop(selmon);
-+	Client *sel = focustop(selmon, 0);
- 	if (sel)
- 		setfullscreen(sel, !sel->isfullscreen);
- }
-@@ -2753,12 +2776,12 @@ void
- toggletag(const Arg *arg)
- {
- 	uint32_t newtags;
--	Client *sel = focustop(selmon);
-+	Client *sel = focustop(selmon, 0);
- 	if (!sel || !(newtags = sel->tags ^ (arg->ui & TAGMASK)))
- 		return;
- 
- 	sel->tags = newtags;
--	focusclient(focustop(selmon), 1);
-+	focusclient(focustop(selmon, 0), 1);
- 	arrange(selmon);
- 	printstatus();
- }
-@@ -2771,7 +2794,7 @@ toggleview(const Arg *arg)
- 		return;
- 
- 	selmon->tagset[selmon->seltags] = newtagset;
--	focusclient(focustop(selmon), 1);
-+	focusclient(focustop(selmon, 0), 1);
- 	arrange(selmon);
- 	printstatus();
- }
-@@ -2795,7 +2818,7 @@ unmaplayersurfacenotify(struct wl_listener *listener, void *data)
- 	if (l->layer_surface->output && (l->mon = l->layer_surface->output->data))
- 		arrangelayers(l->mon);
- 	if (l->layer_surface->surface == seat->keyboard_state.focused_surface)
--		focusclient(focustop(selmon), 1);
-+		focusclient(focustop(selmon, 0), 1);
- 	motionnotify(0, NULL, 0, 0, 0, 0);
- }
- 
-@@ -2812,7 +2835,7 @@ unmapnotify(struct wl_listener *listener, void *data)
- 	if (client_is_unmanaged(c)) {
- 		if (c == exclusive_focus) {
- 			exclusive_focus = NULL;
--			focusclient(focustop(selmon), 1);
-+			focusclient(focustop(selmon, 0), 1);
- 		}
- 	} else {
- 		wl_list_remove(&c->link);
-@@ -2893,7 +2916,7 @@ updatemons(struct wl_listener *listener, void *data)
- 		/* Don't move clients to the left output when plugging monitors */
- 		arrange(m);
- 		/* make sure fullscreen clients have the right size */
--		if ((c = focustop(m)) && c->isfullscreen)
-+		if ((c = focustop(m, 0)) && c->isfullscreen)
- 			resize(c, m->m, 0);
- 
- 		/* Try to re-set the gamma LUT when updating monitors,
-@@ -2913,7 +2936,7 @@ updatemons(struct wl_listener *listener, void *data)
- 			if (!c->mon && client_surface(c)->mapped)
- 				setmon(c, selmon, c->tags);
- 		}
--		focusclient(focustop(selmon), 1);
-+		focusclient(focustop(selmon, 0), 1);
- 		if (selmon->lock_surface) {
- 			client_notify_enter(selmon->lock_surface->surface,
- 					wlr_seat_get_keyboard(seat));
-@@ -2935,7 +2958,7 @@ void
- updatetitle(struct wl_listener *listener, void *data)
- {
- 	Client *c = wl_container_of(listener, c, set_title);
--	if (c == focustop(c->mon))
-+	if (c == focustop(c->mon, 0))
- 		printstatus();
- }
- 
-@@ -2945,7 +2968,7 @@ urgent(struct wl_listener *listener, void *data)
- 	struct wlr_xdg_activation_v1_request_activate_event *event = data;
- 	Client *c = NULL;
- 	toplevel_from_wlr_surface(event->surface, &c, NULL);
--	if (!c || c == focustop(selmon))
-+	if (!c || c == focustop(selmon, 0))
- 		return;
- 
- 	c->isurgent = 1;
-@@ -2963,7 +2986,7 @@ view(const Arg *arg)
- 	selmon->seltags ^= 1; /* toggle sel tagset */
- 	if (arg->ui & TAGMASK)
- 		selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
--	focusclient(focustop(selmon), 1);
-+	focusclient(focustop(selmon, 0), 1);
- 	arrange(selmon);
- 	printstatus();
- }
-@@ -3034,7 +3057,7 @@ xytonode(double x, double y, struct wlr_surface **psurface,
- void
- zoom(const Arg *arg)
- {
--	Client *c, *sel = focustop(selmon);
-+	Client *c, *sel = focustop(selmon, 0);
- 
- 	if (!sel || !selmon || !selmon->lt[selmon->sellt]->arrange || sel->isfloating)
- 		return;
-@@ -3145,7 +3168,7 @@ sethints(struct wl_listener *listener, void *data)
- {
- 	Client *c = wl_container_of(listener, c, set_hints);
- 	struct wlr_surface *surface = client_surface(c);
--	if (c == focustop(selmon))
-+	if (c == focustop(selmon, 0))
- 		return;
- 
- 	c->isurgent = xcb_icccm_wm_hints_get_urgency(c->surface.xwayland->hints);
--- 
-2.48.0
-

ipc.patch

@@ -0,0 +1,596 @@
+From 6c6d655b68770ce82a24fde9b58c4d97b672553a Mon Sep 17 00:00:00 2001
+From: choc <notchoc@proton.me>
+Date: Mon, 23 Oct 2023 10:35:17 +0800
+Subject: [PATCH] implement dwl-ipc-unstable-v2
+ https://codeberg.org/dwl/dwl-patches/wiki/ipc
+
+---
+ Makefile                          |  14 +-
+ config.def.h                      |   1 +
+ dwl.c                             | 257 ++++++++++++++++++++++++++----
+ protocols/dwl-ipc-unstable-v2.xml | 181 +++++++++++++++++++++
+ 4 files changed, 419 insertions(+), 34 deletions(-)
+ create mode 100644 protocols/dwl-ipc-unstable-v2.xml
+
+diff --git a/Makefile b/Makefile
+index 8db7409..a79a080 100644
+--- a/Makefile
++++ b/Makefile
+@@ -17,12 +17,14 @@ DWLCFLAGS = `$(PKG_CONFIG) --cflags $(PKGS)` $(WLR_INCS) $(DWLCPPFLAGS) $(DWLDEV
+ LDLIBS    = `$(PKG_CONFIG) --libs $(PKGS)` $(WLR_LIBS) -lm $(LIBS)
+
+ all: dwl
+-dwl: dwl.o util.o
+-	$(CC) dwl.o util.o $(DWLCFLAGS) $(LDFLAGS) $(LDLIBS) -o $@
++dwl: dwl.o util.o dwl-ipc-unstable-v2-protocol.o
++	$(CC) dwl.o util.o dwl-ipc-unstable-v2-protocol.o $(DWLCFLAGS) $(LDFLAGS) $(LDLIBS) -o $@
+ dwl.o: dwl.c client.h config.h config.mk cursor-shape-v1-protocol.h \
+ 	pointer-constraints-unstable-v1-protocol.h wlr-layer-shell-unstable-v1-protocol.h \
+-	wlr-output-power-management-unstable-v1-protocol.h xdg-shell-protocol.h
++	wlr-output-power-management-unstable-v1-protocol.h xdg-shell-protocol.h \
++	dwl-ipc-unstable-v2-protocol.h
+ util.o: util.c util.h
++dwl-ipc-unstable-v2-protocol.o: dwl-ipc-unstable-v2-protocol.c dwl-ipc-unstable-v2-protocol.h
+
+ # wayland-scanner is a tool which generates C headers and rigging for Wayland
+ # protocols, which are specified in XML. wlroots requires you to rig these up
+@@ -45,6 +47,12 @@ wlr-output-power-management-unstable-v1-protocol.h:
+ xdg-shell-protocol.h:
+ 	$(WAYLAND_SCANNER) server-header \
+ 		$(WAYLAND_PROTOCOLS)/stable/xdg-shell/xdg-shell.xml $@
++dwl-ipc-unstable-v2-protocol.h:
++	$(WAYLAND_SCANNER) server-header \
++		protocols/dwl-ipc-unstable-v2.xml $@
++dwl-ipc-unstable-v2-protocol.c:
++	$(WAYLAND_SCANNER) private-code \
++		protocols/dwl-ipc-unstable-v2.xml $@
+
+ config.h:
+ 	cp config.def.h $@
+diff --git a/config.def.h b/config.def.h
+index 22d2171..1593033 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -127,6 +127,7 @@ static const Key keys[] = {
+ 	/* modifier                  key                 function        argument */
+ 	{ MODKEY,                    XKB_KEY_p,          spawn,          {.v = menucmd} },
+ 	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_Return,     spawn,          {.v = termcmd} },
++	{ MODKEY,                    XKB_KEY_b,          togglebar,      {0} },
+ 	{ MODKEY,                    XKB_KEY_j,          focusstack,     {.i = +1} },
+ 	{ MODKEY,                    XKB_KEY_k,          focusstack,     {.i = -1} },
+ 	{ MODKEY,                    XKB_KEY_i,          incnmaster,     {.i = +1} },
+diff --git a/dwl.c b/dwl.c
+index 8a587d1..7a4949b 100644
+--- a/dwl.c
++++ b/dwl.c
+@@ -68,6 +68,7 @@
+ #include <xcb/xcb_icccm.h>
+ #endif
+
++#include "dwl-ipc-unstable-v2-protocol.h"
+ #include "util.h"
+
+ /* macros */
+@@ -144,6 +145,12 @@ typedef struct {
+ 	uint32_t resize; /* configure serial of a pending resize */
+ } Client;
+
++typedef struct {
++	struct wl_list link;
++	struct wl_resource *resource;
++	Monitor *mon;
++} DwlIpcOutput;
++
+ typedef struct {
+ 	uint32_t mod;
+ 	xkb_keysym_t keysym;
+@@ -189,6 +196,7 @@ typedef struct {
+
+ struct Monitor {
+ 	struct wl_list link;
++	struct wl_list dwl_ipc_outputs;
+ 	struct wlr_output *wlr_output;
+ 	struct wlr_scene_output *scene_output;
+ 	struct wlr_scene_rect *fullscreen_bg; /* See createmon() for info */
+@@ -286,6 +294,17 @@ static void destroysessionlock(struct wl_listener *listener, void *data);
+ static void destroysessionmgr(struct wl_listener *listener, void *data);
+ static void destroykeyboardgroup(struct wl_listener *listener, void *data);
+ static Monitor *dirtomon(enum wlr_direction dir);
++static void dwl_ipc_manager_bind(struct wl_client *client, void *data, uint32_t version, uint32_t id);
++static void dwl_ipc_manager_destroy(struct wl_resource *resource);
++static void dwl_ipc_manager_get_output(struct wl_client *client, struct wl_resource *resource, uint32_t id, struct wl_resource *output);
++static void dwl_ipc_manager_release(struct wl_client *client, struct wl_resource *resource);
++static void dwl_ipc_output_destroy(struct wl_resource *resource);
++static void dwl_ipc_output_printstatus(Monitor *monitor);
++static void dwl_ipc_output_printstatus_to(DwlIpcOutput *ipc_output);
++static void dwl_ipc_output_set_client_tags(struct wl_client *client, struct wl_resource *resource, uint32_t and_tags, uint32_t xor_tags);
++static void dwl_ipc_output_set_layout(struct wl_client *client, struct wl_resource *resource, uint32_t index);
++static void dwl_ipc_output_set_tags(struct wl_client *client, struct wl_resource *resource, uint32_t tagmask, uint32_t toggle_tagset);
++static void dwl_ipc_output_release(struct wl_client *client, struct wl_resource *resource);
+ static void focusclient(Client *c, int lift);
+ static void focusmon(const Arg *arg);
+ static void focusstack(const Arg *arg);
+@@ -338,6 +357,7 @@ static void startdrag(struct wl_listener *listener, void *data);
+ static void tag(const Arg *arg);
+ static void tagmon(const Arg *arg);
+ static void tile(Monitor *m);
++static void togglebar(const Arg *arg);
+ static void togglefloating(const Arg *arg);
+ static void togglefullscreen(const Arg *arg);
+ static void toggletag(const Arg *arg);
+@@ -411,6 +431,9 @@ static struct wlr_box sgeom;
+ static struct wl_list mons;
+ static Monitor *selmon;
+
++static struct zdwl_ipc_manager_v2_interface dwl_manager_implementation = {.release = dwl_ipc_manager_release, .get_output = dwl_ipc_manager_get_output};
++static struct zdwl_ipc_output_v2_interface dwl_output_implementation = {.release = dwl_ipc_output_release, .set_tags = dwl_ipc_output_set_tags, .set_layout = dwl_ipc_output_set_layout, .set_client_tags = dwl_ipc_output_set_client_tags};
++
+ #ifdef XWAYLAND
+ static void activatex11(struct wl_listener *listener, void *data);
+ static void associatex11(struct wl_listener *listener, void *data);
+@@ -703,6 +726,10 @@ cleanupmon(struct wl_listener *listener, void *data)
+ 	LayerSurface *l, *tmp;
+ 	size_t i;
+
++	DwlIpcOutput *ipc_output, *ipc_output_tmp;
++	wl_list_for_each_safe(ipc_output, ipc_output_tmp, &m->dwl_ipc_outputs, link)
++		wl_resource_destroy(ipc_output->resource);
++
+ 	/* m->layers[i] are intentionally not unlinked */
+ 	for (i = 0; i < LENGTH(m->layers); i++) {
+ 		wl_list_for_each_safe(l, tmp, &m->layers[i], link)
+@@ -983,6 +1010,8 @@ createmon(struct wl_listener *listener, void *data)
+ 	m = wlr_output->data = ecalloc(1, sizeof(*m));
+ 	m->wlr_output = wlr_output;
+
++	wl_list_init(&m->dwl_ipc_outputs);
++
+ 	for (i = 0; i < LENGTH(m->layers); i++)
+ 		wl_list_init(&m->layers[i]);
+
+@@ -1334,6 +1363,192 @@ dirtomon(enum wlr_direction dir)
+ 	return selmon;
+ }
+
++void
++dwl_ipc_manager_bind(struct wl_client *client, void *data, uint32_t version, uint32_t id)
++{
++	struct wl_resource *manager_resource = wl_resource_create(client, &zdwl_ipc_manager_v2_interface, version, id);
++	if (!manager_resource) {
++		wl_client_post_no_memory(client);
++		return;
++	}
++	wl_resource_set_implementation(manager_resource, &dwl_manager_implementation, NULL, dwl_ipc_manager_destroy);
++
++	zdwl_ipc_manager_v2_send_tags(manager_resource, TAGCOUNT);
++
++	for (unsigned int i = 0; i < LENGTH(layouts); i++)
++		zdwl_ipc_manager_v2_send_layout(manager_resource, layouts[i].symbol);
++}
++
++void
++dwl_ipc_manager_destroy(struct wl_resource *resource)
++{
++	/* No state to destroy */
++}
++
++void
++dwl_ipc_manager_get_output(struct wl_client *client, struct wl_resource *resource, uint32_t id, struct wl_resource *output)
++{
++	DwlIpcOutput *ipc_output;
++	Monitor *monitor = wlr_output_from_resource(output)->data;
++	struct wl_resource *output_resource = wl_resource_create(client, &zdwl_ipc_output_v2_interface, wl_resource_get_version(resource), id);
++	if (!output_resource)
++		return;
++
++	ipc_output = ecalloc(1, sizeof(*ipc_output));
++	ipc_output->resource = output_resource;
++	ipc_output->mon = monitor;
++	wl_resource_set_implementation(output_resource, &dwl_output_implementation, ipc_output, dwl_ipc_output_destroy);
++	wl_list_insert(&monitor->dwl_ipc_outputs, &ipc_output->link);
++	dwl_ipc_output_printstatus_to(ipc_output);
++}
++
++void
++dwl_ipc_manager_release(struct wl_client *client, struct wl_resource *resource)
++{
++	wl_resource_destroy(resource);
++}
++
++static void
++dwl_ipc_output_destroy(struct wl_resource *resource)
++{
++	DwlIpcOutput *ipc_output = wl_resource_get_user_data(resource);
++	wl_list_remove(&ipc_output->link);
++	free(ipc_output);
++}
++
++void
++dwl_ipc_output_printstatus(Monitor *monitor)
++{
++	DwlIpcOutput *ipc_output;
++	wl_list_for_each(ipc_output, &monitor->dwl_ipc_outputs, link)
++		dwl_ipc_output_printstatus_to(ipc_output);
++}
++
++void
++dwl_ipc_output_printstatus_to(DwlIpcOutput *ipc_output)
++{
++	Monitor *monitor = ipc_output->mon;
++	Client *c, *focused;
++	int tagmask, state, numclients, focused_client, tag;
++	const char *title, *appid;
++	focused = focustop(monitor);
++	zdwl_ipc_output_v2_send_active(ipc_output->resource, monitor == selmon);
++
++	for (tag = 0 ; tag < TAGCOUNT; tag++) {
++		numclients = state = focused_client = 0;
++		tagmask = 1 << tag;
++		if ((tagmask & monitor->tagset[monitor->seltags]) != 0)
++			state |= ZDWL_IPC_OUTPUT_V2_TAG_STATE_ACTIVE;
++
++		wl_list_for_each(c, &clients, link) {
++			if (c->mon != monitor)
++				continue;
++			if (!(c->tags & tagmask))
++				continue;
++			if (c == focused)
++				focused_client = 1;
++			if (c->isurgent)
++				state |= ZDWL_IPC_OUTPUT_V2_TAG_STATE_URGENT;
++
++			numclients++;
++		}
++		zdwl_ipc_output_v2_send_tag(ipc_output->resource, tag, state, numclients, focused_client);
++	}
++	title = focused ? client_get_title(focused) : "";
++	appid = focused ? client_get_appid(focused) : "";
++
++	zdwl_ipc_output_v2_send_layout(ipc_output->resource, monitor->lt[monitor->sellt] - layouts);
++	zdwl_ipc_output_v2_send_title(ipc_output->resource, title);
++	zdwl_ipc_output_v2_send_appid(ipc_output->resource, appid);
++	zdwl_ipc_output_v2_send_layout_symbol(ipc_output->resource, monitor->ltsymbol);
++	if (wl_resource_get_version(ipc_output->resource) >= ZDWL_IPC_OUTPUT_V2_FULLSCREEN_SINCE_VERSION) {
++		zdwl_ipc_output_v2_send_fullscreen(ipc_output->resource, focused ? focused->isfullscreen : 0);
++	}
++	if (wl_resource_get_version(ipc_output->resource) >= ZDWL_IPC_OUTPUT_V2_FLOATING_SINCE_VERSION) {
++		zdwl_ipc_output_v2_send_floating(ipc_output->resource, focused ? focused->isfloating : 0);
++	}
++	zdwl_ipc_output_v2_send_frame(ipc_output->resource);
++}
++
++void
++dwl_ipc_output_set_client_tags(struct wl_client *client, struct wl_resource *resource, uint32_t and_tags, uint32_t xor_tags)
++{
++	DwlIpcOutput *ipc_output;
++	Monitor *monitor;
++	Client *selected_client;
++	unsigned int newtags = 0;
++
++	ipc_output = wl_resource_get_user_data(resource);
++	if (!ipc_output)
++		return;
++
++	monitor = ipc_output->mon;
++	selected_client = focustop(monitor);
++	if (!selected_client)
++		return;
++
++	newtags = (selected_client->tags & and_tags) ^ xor_tags;
++	if (!newtags)
++		return;
++
++	selected_client->tags = newtags;
++	if (selmon == monitor)
++		focusclient(focustop(monitor), 1);
++	arrange(selmon);
++	printstatus();
++}
++
++void
++dwl_ipc_output_set_layout(struct wl_client *client, struct wl_resource *resource, uint32_t index)
++{
++	DwlIpcOutput *ipc_output;
++	Monitor *monitor;
++
++	ipc_output = wl_resource_get_user_data(resource);
++	if (!ipc_output)
++		return;
++
++	monitor = ipc_output->mon;
++	if (index >= LENGTH(layouts))
++		return;
++	if (index != monitor->lt[monitor->sellt] - layouts)
++		monitor->sellt ^= 1;
++
++	monitor->lt[monitor->sellt] = &layouts[index];
++	arrange(monitor);
++	printstatus();
++}
++
++void
++dwl_ipc_output_set_tags(struct wl_client *client, struct wl_resource *resource, uint32_t tagmask, uint32_t toggle_tagset)
++{
++	DwlIpcOutput *ipc_output;
++	Monitor *monitor;
++	unsigned int newtags = tagmask & TAGMASK;
++
++	ipc_output = wl_resource_get_user_data(resource);
++	if (!ipc_output)
++		return;
++	monitor = ipc_output->mon;
++
++	if (!newtags || newtags == monitor->tagset[monitor->seltags])
++		return;
++	if (toggle_tagset)
++		monitor->seltags ^= 1;
++
++	monitor->tagset[monitor->seltags] = newtags;
++	if (selmon == monitor)
++		focusclient(focustop(monitor), 1);
++	arrange(monitor);
++	printstatus();
++}
++
++void
++dwl_ipc_output_release(struct wl_client *client, struct wl_resource *resource)
++{
++	wl_resource_destroy(resource);
++}
++
+ void
+ focusclient(Client *c, int lift)
+ {
+@@ -2033,38 +2248,9 @@ void
+ printstatus(void)
+ {
+ 	Monitor *m = NULL;
+-	Client *c;
+-	uint32_t occ, urg, sel;
+
+-	wl_list_for_each(m, &mons, link) {
+-		occ = urg = 0;
+-		wl_list_for_each(c, &clients, link) {
+-			if (c->mon != m)
+-				continue;
+-			occ |= c->tags;
+-			if (c->isurgent)
+-				urg |= c->tags;
+-		}
+-		if ((c = focustop(m))) {
+-			printf("%s title %s\n", m->wlr_output->name, client_get_title(c));
+-			printf("%s appid %s\n", m->wlr_output->name, client_get_appid(c));
+-			printf("%s fullscreen %d\n", m->wlr_output->name, c->isfullscreen);
+-			printf("%s floating %d\n", m->wlr_output->name, c->isfloating);
+-			sel = c->tags;
+-		} else {
+-			printf("%s title \n", m->wlr_output->name);
+-			printf("%s appid \n", m->wlr_output->name);
+-			printf("%s fullscreen \n", m->wlr_output->name);
+-			printf("%s floating \n", m->wlr_output->name);
+-			sel = 0;
+-		}
+-
+-		printf("%s selmon %u\n", m->wlr_output->name, m == selmon);
+-		printf("%s tags %"PRIu32" %"PRIu32" %"PRIu32" %"PRIu32"\n",
+-			m->wlr_output->name, occ, m->tagset[m->seltags], sel, urg);
+-		printf("%s layout %s\n", m->wlr_output->name, m->ltsymbol);
+-	}
+-	fflush(stdout);
++	wl_list_for_each(m, &mons, link)
++		dwl_ipc_output_printstatus(m);
+ }
+
+ void
+@@ -2584,6 +2770,8 @@ setup(void)
+ 	LISTEN_STATIC(&output_mgr->events.apply, outputmgrapply);
+ 	LISTEN_STATIC(&output_mgr->events.test, outputmgrtest);
+
++	wl_global_create(dpy, &zdwl_ipc_manager_v2_interface, 2, NULL, dwl_ipc_manager_bind);
++
+ 	/* Make sure XWayland clients don't connect to the parent X server,
+ 	 * e.g when running in the x11 backend or the wayland backend and the
+ 	 * compositor has Xwayland support */
+@@ -2681,6 +2869,13 @@ tile(Monitor *m)
+ 	}
+ }
+
++void
++togglebar(const Arg *arg) {
++	DwlIpcOutput *ipc_output;
++	wl_list_for_each(ipc_output, &selmon->dwl_ipc_outputs, link)
++		zdwl_ipc_output_v2_send_toggle_visibility(ipc_output->resource);
++}
++
+ void
+ togglefloating(const Arg *arg)
+ {
+diff --git a/protocols/dwl-ipc-unstable-v2.xml b/protocols/dwl-ipc-unstable-v2.xml
+new file mode 100644
+index 0000000..0a6e7e5
+--- /dev/null
++++ b/protocols/dwl-ipc-unstable-v2.xml
+@@ -0,0 +1,181 @@
++<?xml version="1.0" encoding="utf-8"?>
++<!--
++This is largely ripped from somebar's ipc patchset; just with some personal modifications.
++I would probably just submit raphi's patchset but I don't think that would be polite.
++-->
++<protocol name="dwl_ipc_unstable_v2">
++  <description summary="inter-proccess-communication about dwl's state">
++      This protocol allows clients to update and get updates from dwl.
++
++      Warning! The protocol described in this file is experimental and
++      backward incompatible changes may be made. Backward compatible
++      changes may be added together with the corresponding interface
++      version bump.
++      Backward incompatible changes are done by bumping the version
++      number in the protocol and interface names and resetting the
++      interface version. Once the protocol is to be declared stable,
++      the 'z' prefix and the version number in the protocol and
++      interface names are removed and the interface version number is
++      reset.
++  </description>
++
++  <interface name="zdwl_ipc_manager_v2" version="2">
++    <description summary="manage dwl state">
++      This interface is exposed as a global in wl_registry.
++
++      Clients can use this interface to get a dwl_ipc_output.
++      After binding the client will recieve the dwl_ipc_manager.tags and dwl_ipc_manager.layout events.
++      The dwl_ipc_manager.tags and dwl_ipc_manager.layout events expose tags and layouts to the client.
++    </description>
++
++    <request name="release" type="destructor">
++      <description summary="release dwl_ipc_manager">
++        Indicates that the client will not the dwl_ipc_manager object anymore.
++        Objects created through this instance are not affected.
++      </description>
++    </request>
++
++    <request name="get_output">
++      <description summary="get a dwl_ipc_outout for a wl_output">
++        Get a dwl_ipc_outout for the specified wl_output.
++      </description>
++      <arg name="id" type="new_id" interface="zdwl_ipc_output_v2"/>
++      <arg name="output" type="object" interface="wl_output"/>
++    </request>
++
++    <event name="tags">
++      <description summary="Announces tag amount">
++        This event is sent after binding.
++        A roundtrip after binding guarantees the client recieved all tags.
++      </description>
++      <arg name="amount" type="uint"/>
++    </event>
++
++    <event name="layout">
++      <description summary="Announces a layout">
++        This event is sent after binding.
++        A roundtrip after binding guarantees the client recieved all layouts.
++      </description>
++      <arg name="name" type="string"/>
++    </event>
++  </interface>
++
++  <interface name="zdwl_ipc_output_v2" version="2">
++    <description summary="control dwl output">
++      Observe and control a dwl output.
++
++      Events are double-buffered:
++      Clients should cache events and redraw when a dwl_ipc_output.frame event is sent.
++
++      Request are not double-buffered:
++      The compositor will update immediately upon request.
++    </description>
++
++    <enum name="tag_state">
++      <entry name="none" value="0" summary="no state"/>
++      <entry name="active" value="1" summary="tag is active"/>
++      <entry name="urgent" value="2" summary="tag has at least one urgent client"/>
++    </enum>
++
++    <request name="release" type="destructor">
++      <description summary="release dwl_ipc_outout">
++        Indicates to that the client no longer needs this dwl_ipc_output.
++      </description>
++    </request>
++
++    <event name="toggle_visibility">
++      <description summary="Toggle client visibilty">
++        Indicates the client should hide or show themselves.
++        If the client is visible then hide, if hidden then show.
++      </description>
++    </event>
++
++    <event name="active">
++      <description summary="Update the selected output.">
++        Indicates if the output is active. Zero is invalid, nonzero is valid.
++      </description>
++      <arg name="active" type="uint"/>
++    </event>
++
++    <event name="tag">
++      <description summary="Update the state of a tag.">
++        Indicates that a tag has been updated.
++      </description>
++      <arg name="tag" type="uint" summary="Index of the tag"/>
++      <arg name="state" type="uint" enum="tag_state" summary="The state of the tag."/>
++      <arg name="clients" type="uint" summary="The number of clients in the tag."/>
++      <arg name="focused" type="uint" summary="If there is a focused client. Nonzero being valid, zero being invalid."/>
++    </event>
++
++    <event name="layout">
++      <description summary="Update the layout.">
++        Indicates a new layout is selected.
++      </description>
++      <arg name="layout" type="uint" summary="Index of the layout."/>
++    </event>
++
++    <event name="title">
++      <description summary="Update the title.">
++        Indicates the title has changed.
++      </description>
++      <arg name="title" type="string" summary="The new title name."/>
++    </event>
++
++    <event name="appid" since="1">
++      <description summary="Update the appid.">
++        Indicates the appid has changed.
++      </description>
++      <arg name="appid" type="string" summary="The new appid."/>
++    </event>
++
++    <event name="layout_symbol" since="1">
++      <description summary="Update the current layout symbol">
++          Indicates the layout has changed. Since layout symbols are dynamic.
++          As opposed to the zdwl_ipc_manager.layout event, this should take precendence when displaying.
++          You can ignore the zdwl_ipc_output.layout event.
++      </description>
++      <arg name="layout" type="string" summary="The new layout"/>
++    </event>
++
++    <event name="frame">
++      <description summary="The update sequence is done.">
++        Indicates that a sequence of status updates have finished and the client should redraw.
++      </description>
++    </event>
++
++    <request name="set_tags">
++      <description summary="Set the active tags of this output"/>
++      <arg name="tagmask" type="uint" summary="bitmask of the tags that should be set."/>
++      <arg name="toggle_tagset" type="uint" summary="toggle the selected tagset, zero for invalid, nonzero for valid."/>
++    </request>
++
++    <request name="set_client_tags">
++      <description summary="Set the tags of the focused client.">
++        The tags are updated as follows:
++        new_tags = (current_tags AND and_tags) XOR xor_tags
++      </description>
++      <arg name="and_tags" type="uint"/>
++      <arg name="xor_tags" type="uint"/>
++    </request>
++
++    <request name="set_layout">
++      <description summary="Set the layout of this output"/>
++      <arg name="index" type="uint" summary="index of a layout recieved by dwl_ipc_manager.layout"/>
++    </request>
++
++    <!-- Version 2 -->
++    <event name="fullscreen" since="2">
++      <description summary="Update fullscreen status">
++          Indicates if the selected client on this output is fullscreen.
++      </description>
++      <arg name="is_fullscreen" type="uint" summary="If the selected client is fullscreen. Nonzero is valid, zero invalid"/>
++    </event>
++
++    <event name="floating" since="2">
++      <description summary="Update the floating status">
++          Indicates if the selected client on this output is floating.
++      </description>
++      <arg name="is_floating" type="uint" summary="If the selected client is floating. Nonzero is valid, zero invalid"/>
++    </event>
++  </interface>
++</protocol>
+--
+2.43.0

protocols/dwl-ipc-unstable-v2.xml

@@ -0,0 +1,181 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+This is largely ripped from somebar's ipc patchset; just with some personal modifications.
+I would probably just submit raphi's patchset but I don't think that would be polite.
+-->
+<protocol name="dwl_ipc_unstable_v2">
+  <description summary="inter-proccess-communication about dwl's state">
+      This protocol allows clients to update and get updates from dwl.
+
+      Warning! The protocol described in this file is experimental and
+      backward incompatible changes may be made. Backward compatible
+      changes may be added together with the corresponding interface
+      version bump.
+      Backward incompatible changes are done by bumping the version
+      number in the protocol and interface names and resetting the
+      interface version. Once the protocol is to be declared stable,
+      the 'z' prefix and the version number in the protocol and
+      interface names are removed and the interface version number is
+      reset.
+  </description>
+
+  <interface name="zdwl_ipc_manager_v2" version="2">
+    <description summary="manage dwl state">
+      This interface is exposed as a global in wl_registry.
+
+      Clients can use this interface to get a dwl_ipc_output.
+      After binding the client will recieve the dwl_ipc_manager.tags and dwl_ipc_manager.layout events.
+      The dwl_ipc_manager.tags and dwl_ipc_manager.layout events expose tags and layouts to the client.
+    </description>
+
+    <request name="release" type="destructor">
+      <description summary="release dwl_ipc_manager">
+        Indicates that the client will not the dwl_ipc_manager object anymore.
+        Objects created through this instance are not affected.
+      </description>
+    </request>
+
+    <request name="get_output">
+      <description summary="get a dwl_ipc_outout for a wl_output">
+        Get a dwl_ipc_outout for the specified wl_output.
+      </description>
+      <arg name="id" type="new_id" interface="zdwl_ipc_output_v2"/>
+      <arg name="output" type="object" interface="wl_output"/>
+    </request>
+
+    <event name="tags">
+      <description summary="Announces tag amount">
+        This event is sent after binding.
+        A roundtrip after binding guarantees the client recieved all tags.
+      </description>
+      <arg name="amount" type="uint"/>
+    </event>
+
+    <event name="layout">
+      <description summary="Announces a layout">
+        This event is sent after binding.
+        A roundtrip after binding guarantees the client recieved all layouts.
+      </description>
+      <arg name="name" type="string"/>
+    </event>
+  </interface>
+
+  <interface name="zdwl_ipc_output_v2" version="2">
+    <description summary="control dwl output">
+      Observe and control a dwl output.
+
+      Events are double-buffered:
+      Clients should cache events and redraw when a dwl_ipc_output.frame event is sent.
+
+      Request are not double-buffered:
+      The compositor will update immediately upon request.
+    </description>
+
+    <enum name="tag_state">
+      <entry name="none" value="0" summary="no state"/>
+      <entry name="active" value="1" summary="tag is active"/>
+      <entry name="urgent" value="2" summary="tag has at least one urgent client"/>
+    </enum>
+
+    <request name="release" type="destructor">
+      <description summary="release dwl_ipc_outout">
+        Indicates to that the client no longer needs this dwl_ipc_output.
+      </description>
+    </request>
+
+    <event name="toggle_visibility">
+      <description summary="Toggle client visibilty">
+        Indicates the client should hide or show themselves.
+        If the client is visible then hide, if hidden then show.
+      </description>
+    </event>
+
+    <event name="active">
+      <description summary="Update the selected output.">
+        Indicates if the output is active. Zero is invalid, nonzero is valid.
+      </description>
+      <arg name="active" type="uint"/>
+    </event>
+
+    <event name="tag">
+      <description summary="Update the state of a tag.">
+        Indicates that a tag has been updated.
+      </description>
+      <arg name="tag" type="uint" summary="Index of the tag"/>
+      <arg name="state" type="uint" enum="tag_state" summary="The state of the tag."/>
+      <arg name="clients" type="uint" summary="The number of clients in the tag."/>
+      <arg name="focused" type="uint" summary="If there is a focused client. Nonzero being valid, zero being invalid."/>
+    </event>
+
+    <event name="layout">
+      <description summary="Update the layout.">
+        Indicates a new layout is selected.
+      </description>
+      <arg name="layout" type="uint" summary="Index of the layout."/>
+    </event>
+
+    <event name="title">
+      <description summary="Update the title.">
+        Indicates the title has changed.
+      </description>
+      <arg name="title" type="string" summary="The new title name."/>
+    </event>
+
+    <event name="appid" since="1">
+      <description summary="Update the appid.">
+        Indicates the appid has changed.
+      </description>
+      <arg name="appid" type="string" summary="The new appid."/>
+    </event>
+
+    <event name="layout_symbol" since="1">
+      <description summary="Update the current layout symbol">
+          Indicates the layout has changed. Since layout symbols are dynamic.
+          As opposed to the zdwl_ipc_manager.layout event, this should take precendence when displaying.
+          You can ignore the zdwl_ipc_output.layout event.
+      </description>
+      <arg name="layout" type="string" summary="The new layout"/>
+    </event>
+
+    <event name="frame">
+      <description summary="The update sequence is done.">
+        Indicates that a sequence of status updates have finished and the client should redraw.
+      </description>
+    </event>
+
+    <request name="set_tags">
+      <description summary="Set the active tags of this output"/>
+      <arg name="tagmask" type="uint" summary="bitmask of the tags that should be set."/>
+      <arg name="toggle_tagset" type="uint" summary="toggle the selected tagset, zero for invalid, nonzero for valid."/>
+    </request>
+
+    <request name="set_client_tags">
+      <description summary="Set the tags of the focused client.">
+        The tags are updated as follows:
+        new_tags = (current_tags AND and_tags) XOR xor_tags
+      </description>
+      <arg name="and_tags" type="uint"/>
+      <arg name="xor_tags" type="uint"/>
+    </request>
+
+    <request name="set_layout">
+      <description summary="Set the layout of this output"/>
+      <arg name="index" type="uint" summary="index of a layout recieved by dwl_ipc_manager.layout"/>
+    </request>
+
+    <!-- Version 2 -->
+    <event name="fullscreen" since="2">
+      <description summary="Update fullscreen status">
+          Indicates if the selected client on this output is fullscreen.
+      </description>
+      <arg name="is_fullscreen" type="uint" summary="If the selected client is fullscreen. Nonzero is valid, zero invalid"/>
+    </event>
+
+    <event name="floating" since="2">
+      <description summary="Update the floating status">
+          Indicates if the selected client on this output is floating.
+      </description>
+      <arg name="is_floating" type="uint" summary="If the selected client is floating. Nonzero is valid, zero invalid"/>
+    </event>
+  </interface>
+</protocol>