Implement ipc patch

4 files changed, 239 insertions, 38 deletions

diff --git a/Makefile b/Makefile
index 7d247af..48fb630 100644
--- a/Makefile
+++ b/Makefile
@@ -17,12 +17,14 @@ DWLCFLAGS = `$(PKG_CONFIG) --cflags $(PKGS)` -Ofast -march=native $(DWLCPPFLAGS)
 LDLIBS    = `$(PKG_CONFIG) --libs $(PKGS)` -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 03705e9..f8beaaa 100644
--- a/config.def.h
+++ b/config.def.h
@@ -143,6 +143,7 @@ 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|WLR_MODIFIER_SHIFT, XKB_KEY_J,          movestack,      {.i = +1} },
diff --git a/config.h b/config.h
index 476f3b7..853f2e0 100644
--- a/config.h
+++ b/config.h
@@ -159,6 +159,7 @@ static const Key keys[] = {
 	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_underscore, togglegaps,    {0} },
 	{ MODKEY,                    XKB_KEY_equal,      defaultgaps,   {0} },
 	{ WLR_MODIFIER_ALT,          XKB_KEY_Return,     incxkbrules,   {0} },
+	{ MODKEY,                    XKB_KEY_b,          togglebar,      {0} },
 	// { WLR_MODIFIER_ALT,          XKB_KEY_Return,     incxkbrules,   {.i = +1} },
 	// { MODKEY|WLR_MODIFIER_LOGO|WLR_MODIFIER_SHIFT,   XKB_KEY_H,      incogaps,      {.i = +1 } },
 	// { MODKEY|WLR_MODIFIER_LOGO|WLR_MODIFIER_SHIFT,   XKB_KEY_L,      incogaps,      {.i = -1 } },
diff --git a/dwl.c b/dwl.c
index 2c1fef8..2350410 100644
--- a/dwl.c
+++ b/dwl.c
@@ -67,6 +67,7 @@
 #include <xcb/xcb_icccm.h>
 #endif
 
+#include "dwl-ipc-unstable-v2-protocol.h"
 #include "util.h"
 
 /* macros */
@@ -144,6 +145,12 @@ typedef struct {
 } Client;
 
 typedef struct {
+	struct wl_list link;
+	struct wl_resource *resource;
+	Monitor *mon;
+} DwlIpcOutput;
+
+typedef struct {
 	uint32_t mod;
 	xkb_keysym_t keysym;
 	void (*func)(const Arg *);
@@ -188,6 +195,7 @@ 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 */
@@ -291,6 +299,17 @@ 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);
@@ -354,6 +373,7 @@ static void incxkbrules(const Arg *arg);
 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 togglegaps(const Arg *arg);
@@ -764,6 +784,10 @@ 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)
@@ -1061,6 +1085,8 @@ 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]);
 
@@ -2305,41 +2331,8 @@ void
 printstatus(void)
 {
 	Monitor *m = NULL;
-	Client *c;
-	uint32_t occ, urg, sel;
-	const char *appid, *title;
-
-	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))) {
-			title = client_get_title(c);
-			appid = client_get_appid(c);
-			printf("%s title %s\n", m->wlr_output->name, title ? title : broken);
-			printf("%s appid %s\n", m->wlr_output->name, appid ? appid : broken);
-			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
@@ -2905,6 +2898,8 @@ 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 */
@@ -3012,6 +3007,13 @@ 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)
 {
 	Client *sel = focustop(selmon);
@@ -3350,6 +3352,9 @@ zoom(const Arg *arg)
 	arrange(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
 void
 activatex11(struct wl_listener *listener, void *data)
@@ -3448,6 +3453,192 @@ sethints(struct wl_listener *listener, void *data)
 }
 
 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 ? title : broken);
+	zdwl_ipc_output_v2_send_appid(ipc_output->resource, appid ? appid : broken);
+	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
 xwaylandready(struct wl_listener *listener, void *data)
 {
 	struct wlr_xcursor *xcursor;