types/wlr_tablet_tool: add base wlr_input_device

wlr_tablet_tool owns its wlr_input_device. It will be initialized when the
tablet tool is initialized, and finished when the tablet tool is destroyed.

backend/libinput/tablet_tool.c

@@ -75,7 +75,11 @@ struct wlr_tablet *create_libinput_tablet(
 	}
 
 	struct wlr_tablet *wlr_tablet = &libinput_tablet->wlr_tablet;
-	wlr_tablet_init(wlr_tablet, &tablet_impl);
+	const char *name = libinput_device_get_name(libinput_dev);
+
+	wlr_tablet_init(wlr_tablet, &tablet_impl, name);
+	wlr_tablet->base.vendor = libinput_device_get_id_vendor(libinput_dev);
+	wlr_tablet->base.product = libinput_device_get_id_product(libinput_dev);
 
 	struct udev_device *udev = libinput_device_get_udev_device(libinput_dev);
 	char **dst = wl_array_add(&wlr_tablet->paths, sizeof(char *));

backend/wayland/tablet_v2.c

@@ -909,7 +909,7 @@ static void handle_tab_added(void *data,
 		return;
 	}
 	zwp_tablet_v2_set_user_data(id, wlr_dev->tablet);
-	wlr_tablet_init(wlr_dev->tablet, NULL);
+	wlr_tablet_init(wlr_dev->tablet, NULL, wlr_dev->name);
 	zwp_tablet_v2_add_listener(id, &tablet_listener, dev);
 }
 

include/wlr/interfaces/wlr_tablet_tool.h

@@ -16,7 +16,7 @@ struct wlr_tablet_impl {
 };
 
 void wlr_tablet_init(struct wlr_tablet *tablet,
-		const struct wlr_tablet_impl *impl);
+	const struct wlr_tablet_impl *impl, const char *name);
 void wlr_tablet_destroy(struct wlr_tablet *tablet);
 
 #endif

include/wlr/types/wlr_tablet_tool.h

@@ -60,6 +60,8 @@ struct wlr_tablet_tool {
 struct wlr_tablet_impl;
 
 struct wlr_tablet {
+	struct wlr_input_device base;
+
 	const struct wlr_tablet_impl *impl;
 
 	struct {

types/wlr_tablet_tool.c

@@ -1,11 +1,16 @@
 #include <stdlib.h>
 #include <string.h>
 #include <wayland-server-core.h>
+#include <wlr/interfaces/wlr_input_device.h>
 #include <wlr/interfaces/wlr_tablet_tool.h>
 #include <wlr/types/wlr_tablet_tool.h>
 
 void wlr_tablet_init(struct wlr_tablet *tablet,
-		const struct wlr_tablet_impl *impl) {
+		const struct wlr_tablet_impl *impl, const char *name) {
+	wlr_input_device_init(&tablet->base, WLR_INPUT_DEVICE_TABLET_TOOL, NULL,
+		name);
+	tablet->base.tablet = tablet;
+
 	tablet->impl = impl;
 	wl_signal_init(&tablet->events.axis);
 	wl_signal_init(&tablet->events.proximity);
@@ -25,6 +30,7 @@ void wlr_tablet_destroy(struct wlr_tablet *tablet) {
 	}
 	wl_array_release(&tablet->paths);
 
+	wlr_input_device_finish(&tablet->base);
 	if (tablet->impl && tablet->impl->destroy) {
 		tablet->impl->destroy(tablet);
 	} else {