Refactor out wlr_touch_state

backend/libinput/touch.c

@@ -10,7 +10,13 @@
 struct wlr_touch *wlr_libinput_touch_create(
 		struct libinput_device *libinput_dev) {
 	assert(libinput_dev);
-	return wlr_touch_create(NULL, NULL);
+	struct wlr_touch *wlr_touch = calloc(1, sizeof(struct wlr_touch));
+	if (!wlr_touch) {
+		wlr_log(L_ERROR, "Unable to allocate wlr_touch");
+		return NULL;
+	}
+	wlr_touch_init(wlr_touch, NULL);
+	return wlr_touch;
 }
 
 void handle_touch_down(struct libinput_event *event,

include/wlr/interfaces/wlr_touch.h

@@ -3,11 +3,11 @@
 #include <wlr/types/wlr_touch.h>
 
 struct wlr_touch_impl {
-	void (*destroy)(struct wlr_touch_state *state);
+	void (*destroy)(struct wlr_touch *touch);
 };
 
-struct wlr_touch *wlr_touch_create(struct wlr_touch_impl *impl,
-		struct wlr_touch_state *state);
+void wlr_touch_init(struct wlr_touch *touch,
+		struct wlr_touch_impl *impl);
 void wlr_touch_destroy(struct wlr_touch *touch);
 
 #endif

include/wlr/types/wlr_touch.h

@@ -3,11 +3,9 @@
 #include <wayland-server.h>
 #include <stdint.h>
 
-struct wlr_touch_state;
 struct wlr_touch_impl;
 
 struct wlr_touch {
-	struct wlr_touch_state *state;
 	struct wlr_touch_impl *impl;
 
 	struct {

types/wlr_touch.c

@@ -4,22 +4,20 @@
 #include <wlr/types/wlr_touch.h>
 #include <wlr/interfaces/wlr_touch.h>
 
-struct wlr_touch *wlr_touch_create(struct wlr_touch_impl *impl,
-		struct wlr_touch_state *state) {
-	struct wlr_touch *touch = calloc(1, sizeof(struct wlr_touch));
+void wlr_touch_init(struct wlr_touch *touch,
+		struct wlr_touch_impl *impl) {
 	touch->impl = impl;
-	touch->state = state;
 	wl_signal_init(&touch->events.down);
 	wl_signal_init(&touch->events.up);
 	wl_signal_init(&touch->events.motion);
 	wl_signal_init(&touch->events.cancel);
-	return touch;
 }
 
 void wlr_touch_destroy(struct wlr_touch *touch) {
 	if (!touch) return;
-	if (touch->impl) {
-		touch->impl->destroy(touch->state);
-	}
+	if (touch->impl && touch->impl->destroy) {
+		touch->impl->destroy(touch);
+	} else {
 		free(touch);
 	}
+}