types/wlr_input_device: move init and finish function to private API

include/interfaces/wlr_input_device.h

@@ -0,0 +1,20 @@
+#ifndef INTERFACES_INPUT_DEVICE_H
+#define INTERFACES_INPUT_DEVICE_H
+
+#include <wlr/types/wlr_input_device.h>
+
+/**
+ * Initializes a given wlr_input_device. Allocates memory for the name and sets
+ * its vendor and product id to 0.
+ * wlr_device must be non-NULL.
+ */
+void wlr_input_device_init(struct wlr_input_device *wlr_device,
+	enum wlr_input_device_type type, const char *name);
+
+/**
+ * Cleans up all the memory owned by a given wlr_input_device and signals
+ * the destroy event.
+ */
+void wlr_input_device_finish(struct wlr_input_device *wlr_device);
+
+#endif

include/wlr/backend/headless.h

@@ -10,7 +10,6 @@
 #define WLR_BACKEND_HEADLESS_H
 
 #include <wlr/backend.h>
-#include <wlr/types/wlr_input_device.h>
 #include <wlr/types/wlr_output.h>
 
 /**

include/wlr/backend/libinput.h

@@ -13,7 +13,8 @@
 #include <wayland-server-core.h>
 #include <wlr/backend.h>
 #include <wlr/backend/session.h>
-#include <wlr/types/wlr_input_device.h>
+
+struct wlr_input_device;
 
 struct wlr_backend *wlr_libinput_backend_create(struct wl_display *display,
 		struct wlr_session *session);

include/wlr/backend/wayland.h

@@ -4,9 +4,10 @@
 #include <wayland-client.h>
 #include <wayland-server-core.h>
 #include <wlr/backend.h>
-#include <wlr/types/wlr_input_device.h>
 #include <wlr/types/wlr_output.h>
 
+struct wlr_input_device;
+
 /**
  * Creates a new wlr_wl_backend. This backend will be created with no outputs;
  * you must use wlr_wl_output_create to add them.

include/wlr/backend/x11.h

@@ -6,9 +6,10 @@
 #include <wayland-server-core.h>
 
 #include <wlr/backend.h>
-#include <wlr/types/wlr_input_device.h>
 #include <wlr/types/wlr_output.h>
 
+struct wlr_input_device;
+
 /**
  * Creates a new wlr_x11_backend. This backend will be created with no outputs;
  * you must use wlr_x11_output_create to add them.

include/wlr/types/wlr_cursor.h

@@ -10,10 +10,11 @@
 #define WLR_TYPES_WLR_CURSOR_H
 
 #include <wayland-server-core.h>
-#include <wlr/types/wlr_input_device.h>
 #include <wlr/types/wlr_output_layout.h>
 #include <wlr/types/wlr_output.h>
 
+struct wlr_input_device;
+
 /**
  * wlr_cursor implements the behavior of the "cursor", that is, the image on the
  * screen typically moved about with a mouse or so. It provides tracking for

include/wlr/types/wlr_input_device.h

@@ -25,8 +25,6 @@ enum wlr_input_device_type {
 	WLR_INPUT_DEVICE_SWITCH,
 };
 
-struct wlr_input_device_impl;
-
 struct wlr_input_device {
 	enum wlr_input_device_type type;
 	unsigned int vendor, product;
@@ -53,12 +51,4 @@ struct wlr_input_device {
 	void *data;
 };
 
-void wlr_input_device_init(struct wlr_input_device *wlr_device,
-	enum wlr_input_device_type type, const char *name);
-
-/**
- * Clean up all of the provided wlr_input_device resources
- */
-void wlr_input_device_finish(struct wlr_input_device *wlr_device);
-
 #endif

include/wlr/types/wlr_tablet_v2.h

@@ -11,13 +11,14 @@
 
 #include <wayland-server-core.h>
 #include <wlr/types/wlr_seat.h>
-#include <wlr/types/wlr_input_device.h>
 
 #include "tablet-unstable-v2-protocol.h"
 
 /* This can probably be even lower,the tools don't have a lot of buttons */
 #define WLR_TABLET_V2_TOOL_BUTTONS_CAP 16
 
+struct wlr_input_device;
+
 struct wlr_tablet_pad_v2_grab_interface;
 
 struct wlr_tablet_pad_v2_grab {