swaybar: add multiseat support

This just adds multiseat support to swaybar

1 files changed, 47 insertions, 9 deletions

diff --git a/swaybar/bar.c b/swaybar/bar.c
index a95464f5..35e1662b 100644
--- a/swaybar/bar.c
+++ b/swaybar/bar.c
@@ -216,8 +216,16 @@ static void output_scale(void *data, struct wl_output *wl_output,
 		int32_t factor) {
 	struct swaybar_output *output = data;
 	output->scale = factor;
-	if (output == output->bar->pointer.current) {
-		update_cursor(output->bar);
+
+	bool render = false;
+	struct swaybar_seat *seat;
+	wl_list_for_each(seat, &output->bar->seats, link) {
+		if (output == seat->pointer.current) {
+			update_cursor(seat);
+			render = true;
+		}
+	};
+	if (render) {
 		render_frame(output);
 	}
 }
@@ -318,9 +326,16 @@ static void handle_global(void *data, struct wl_registry *registry,
 		bar->compositor = wl_registry_bind(registry, name,
 				&wl_compositor_interface, 4);
 	} else if (strcmp(interface, wl_seat_interface.name) == 0) {
-		bar->seat = wl_registry_bind(registry, name,
-				&wl_seat_interface, 3);
-		wl_seat_add_listener(bar->seat, &seat_listener, bar);
+		struct swaybar_seat *seat = calloc(1, sizeof(struct swaybar_seat));
+		if (!seat) {
+			sway_abort("Failed to allocate swaybar_seat");
+			return;
+		}
+		seat->bar = bar;
+		seat->wl_name = name;
+		seat->wl_seat = wl_registry_bind(registry, name, &wl_seat_interface, 3);
+		wl_seat_add_listener(seat->wl_seat, &seat_listener, seat);
+		wl_list_insert(&bar->seats, &seat->link);
 	} else if (strcmp(interface, wl_shm_interface.name) == 0) {
 		bar->shm = wl_registry_bind(registry, name,
 				&wl_shm_interface, 1);
@@ -355,7 +370,14 @@ static void handle_global_remove(void *data, struct wl_registry *registry,
 	wl_list_for_each_safe(output, tmp, &bar->outputs, link) {
 		if (output->wl_name == name) {
 			swaybar_output_free(output);
-			break;
+			return;
+		}
+	}
+	struct swaybar_seat *seat, *tmp_seat;
+	wl_list_for_each_safe(seat, tmp_seat, &bar->seats, link) {
+		if (seat->wl_name == name) {
+			swaybar_seat_free(seat);
+			return;
 		}
 	}
 }
@@ -369,6 +391,7 @@ bool bar_setup(struct swaybar *bar, const char *socket_path) {
 	bar->visible = true;
 	bar->config = init_config();
 	wl_list_init(&bar->outputs);
+	wl_list_init(&bar->seats);
 	bar->eventloop = loop_create();
 
 	bar->ipc_socketfd = ipc_open_socket(socket_path);
@@ -397,9 +420,16 @@ bool bar_setup(struct swaybar *bar, const char *socket_path) {
 	// Second roundtrip for xdg-output
 	wl_display_roundtrip(bar->display);
 
-	struct swaybar_pointer *pointer = &bar->pointer;
-	pointer->cursor_surface = wl_compositor_create_surface(bar->compositor);
-	assert(pointer->cursor_surface);
+	struct swaybar_seat *seat;
+	wl_list_for_each(seat, &bar->seats, link) {
+		struct swaybar_pointer *pointer = &seat->pointer;
+		if (!pointer) {
+			continue;
+		}
+		pointer->cursor_surface =
+			wl_compositor_create_surface(bar->compositor);
+		assert(pointer->cursor_surface);
+	}
 
 #if HAVE_TRAY
 	if (!bar->config->tray_hidden) {
@@ -468,11 +498,19 @@ static void free_outputs(struct wl_list *list) {
 	}
 }
 
+static void free_seats(struct wl_list *list) {
+	struct swaybar_seat *seat, *tmp;
+	wl_list_for_each_safe(seat, tmp, list, link) {
+		swaybar_seat_free(seat);
+	}
+}
+
 void bar_teardown(struct swaybar *bar) {
 #if HAVE_TRAY
 	destroy_tray(bar->tray);
 #endif
 	free_outputs(&bar->outputs);
+	free_seats(&bar->seats);
 	if (bar->config) {
 		free_config(bar->config);
 	}