Address @emersion's comments

include/wlr/types/wlr_relative_pointer_v1.h

@@ -15,7 +15,7 @@
 /**
  * This protocol specifies a set of interfaces used for making clients able to
  * receive relative pointer events not obstructed by barriers (such as the
- * monitor edge or other pointer barriers).
+ * monitor edge or pointer constraints).
  */
 
 
@@ -26,7 +26,7 @@
 
 struct wlr_relative_pointer_manager_v1 {
 	struct wl_global *global;
-	struct wl_list resources;
+	struct wl_list resources; // wl_resource_get_link()
 	struct wl_list relative_pointers;
 
 	struct {
@@ -60,6 +60,8 @@ struct wlr_relative_pointer_v1 {
 		struct wl_signal destroy;
 	} events;
 
+	struct wl_listener seat_destroy;
+
 	void *data;
 };
 
@@ -69,7 +71,7 @@ void wlr_relative_pointer_manager_v1_destroy(
 	struct wlr_relative_pointer_manager_v1 *relative_pointer_manager);
 
 void wlr_relative_pointer_v1_send_relative_motion(
-	struct wlr_relative_pointer_v1 *relative_pointer, uint64_t time,
+	struct wlr_relative_pointer_v1 *relative_pointer, uint64_t time_msec,
 	double dx, double dy, double dx_unaccel, double dy_unaccel);
 
 struct wlr_relative_pointer_v1 *wlr_relative_pointer_v1_from_resource(

include/wlr/types/wlr_seat.h

@@ -313,19 +313,6 @@ void wlr_seat_pointer_clear_focus(struct wlr_seat *wlr_seat);
 void wlr_seat_pointer_send_motion(struct wlr_seat *wlr_seat, uint32_t time,
 		double sx, double sy);
 
-/**
- * Send relative motion events to the surface with pointer focus. Coordinates
- * for the motion event are relative to current pointer location, both
- * accelerated and unaccelerated. Compositors should use
- * `wlr_seat_pointer_notify_relative_motion()` to send relative motion events
- * to respect relative pointer requests by clients.
- *
- * Note that the timestamp is 64 bit, split into high 32 bits and low 32 bits.
- */
-void wlr_seat_pointer_notify_relative_motion(struct wlr_seat *wlr_seat,
-		uint64_t time, double dx, double dy,
-		double dx_unaccel, double dy_unaccel);
-
 /**
  * Send a button event to the surface with pointer focus. Coordinates for the
  * button event are surface-local. Returns the serial. Compositors should use

rootston/cursor.c

@@ -307,7 +307,6 @@ static void roots_cursor_press_button(struct roots_cursor *cursor,
 
 static void notify_relative_motion(struct roots_seat *seat, uint64_t time_msec,
 		double dx, double dy, double dx_unaccel, double dy_unaccel) {
-
 	struct wlr_relative_pointer_manager_v1 *relative_pointer_manager =
 		seat->input->server->desktop->relative_pointer_manager;
 
@@ -316,26 +315,15 @@ static void notify_relative_motion(struct roots_seat *seat, uint64_t time_msec,
 		return;
 	}
 
-	struct wl_resource *resource;
+	struct wlr_relative_pointer_v1 *pointer;
-	wl_resource_for_each(resource, &relative_pointer_manager->relative_pointers) {
+	wl_list_for_each(pointer, &relative_pointer_manager->relative_pointers, link) {
-
+		if (seat->seat != pointer->seat) {
-		struct wlr_relative_pointer_v1 *pointer =
-			wlr_relative_pointer_v1_from_resource(resource);
-		if (pointer == NULL || seat->seat != pointer->seat) {
 			continue;
 		}
 
 		wlr_relative_pointer_v1_send_relative_motion(pointer, time_msec,
 				dx, dy, dx_unaccel, dy_unaccel);
 	}
-
-	wl_resource_for_each(resource, &client->pointers) {
-		if (wlr_seat_client_from_pointer_resource(resource) == NULL) {
-			continue;
-		}
-		wl_pointer_send_frame(resource);
-	}
-
 }
 
 void roots_cursor_handle_motion(struct roots_cursor *cursor,
@@ -343,6 +331,7 @@ void roots_cursor_handle_motion(struct roots_cursor *cursor,
 	double dx = event->delta_x;
 	double dy = event->delta_y;
 
+	/* TODO send unaccelerated values */
 	notify_relative_motion(cursor->seat,
 		(uint64_t)event->time_msec * 1000, dx, dy, dx, dy);
 
@@ -388,6 +377,7 @@ void roots_cursor_handle_motion_absolute(struct roots_cursor *cursor,
 	double dx = lx - cursor->cursor->x;
 	double dy = ly - cursor->cursor->y;
 
+	/* TODO send unaccelerated values */
 	notify_relative_motion(cursor->seat,
 		(uint64_t)event->time_msec * 1000, dx, dy, dx, dy);
 

types/seat/wlr_seat_pointer.c

@@ -5,7 +5,6 @@
 #include <time.h>
 #include <wayland-server.h>
 #include <wlr/types/wlr_input_device.h>
-#include <wlr/types/wlr_relative_pointer_v1.h>
 #include <wlr/util/log.h>
 #include "types/wlr_seat.h"
 #include "util/signal.h"

types/wlr_relative_pointer_v1.c

@@ -19,7 +19,7 @@ static const struct zwp_relative_pointer_v1_interface relative_pointer_v1_impl;
  * helper functions
  */
 
-struct wlr_relative_pointer_v1 *relative_pointer_from_resource(struct wl_resource *resource) {
+struct wlr_relative_pointer_v1 *wlr_relative_pointer_v1_from_resource(struct wl_resource *resource) {
 	assert(wl_resource_instance_of(resource, &zwp_relative_pointer_v1_interface,
 		&relative_pointer_v1_impl));
 	return wl_resource_get_user_data(resource);
@@ -37,26 +37,42 @@ static struct wlr_relative_pointer_manager_v1 *relative_pointer_manager_from_res
  * relative_pointer handler functions
  */
 
-static void relative_pointer_v1_handle_resource_destroy(struct wl_resource *resource) {
+static void relative_pointer_destroy(struct wlr_relative_pointer_v1 *relative_pointer) {
-	struct wlr_relative_pointer_v1 *relative_pointer =
-		relative_pointer_from_resource(resource);
 	wlr_signal_emit_safe(&relative_pointer->events.destroy, relative_pointer);
 
-	wl_list_remove(wl_resource_get_link(resource));
+	wl_list_remove(&relative_pointer->link);
+	wl_list_remove(&relative_pointer->seat_destroy.link);
 	free(relative_pointer);
 }
 
+static void relative_pointer_v1_handle_resource_destroy(struct wl_resource *resource) {
+	struct wlr_relative_pointer_v1 *relative_pointer =
+		wlr_relative_pointer_v1_from_resource(resource);
+	if (relative_pointer == NULL) {
+		return;
+	}
+	relative_pointer_destroy(relative_pointer);
+}
+
 
 static void relative_pointer_v1_handle_destroy(struct wl_client *client,
 		struct wl_resource *resource) {
 	struct wlr_relative_pointer_v1 *relative_pointer =
-		relative_pointer_from_resource(resource);
+		wlr_relative_pointer_v1_from_resource(resource);
 	wlr_log(WLR_DEBUG, "relative_pointer_v1 %p released by client %p",
 		relative_pointer, client);
 
 	wl_resource_destroy(resource);
 }
 
+static void relative_pointer_handle_seat_destroy(struct wl_listener *listener,
+		void *data) {
+	struct wlr_relative_pointer_v1 *relative_pointer =
+		wl_container_of(listener, relative_pointer, seat_destroy);
+
+	relative_pointer_destroy(relative_pointer);
+	wl_resource_set_user_data(relative_pointer->resource, NULL);
+}
 
 /**
  * relative_pointer_manager handler functions
@@ -75,12 +91,10 @@ static void relative_pointer_manager_v1_handle_destroy(struct wl_client *client,
 		client);
 }
 
-
 static void relative_pointer_manager_v1_handle_get_relative_pointer(struct wl_client *client,
 		struct wl_resource *resource, uint32_t id, struct wl_resource *pointer) {
 	struct wlr_seat_client *seat_client =
 		wlr_seat_client_from_pointer_resource(pointer);
-	assert(seat_client->client == client);
 
 	struct wlr_relative_pointer_v1 *relative_pointer =
 		calloc(1, sizeof(struct wlr_relative_pointer_v1));
@@ -109,7 +123,11 @@ static void relative_pointer_manager_v1_handle_get_relative_pointer(struct wl_cl
 		relative_pointer_manager_from_resource(resource);
 
 	wl_list_insert(&relative_pointer_manager->relative_pointers,
-			wl_resource_get_link(relative_pointer_resource));
+			&relative_pointer->link);
+
+	wl_signal_add(&relative_pointer->seat->events.destroy,
+			&relative_pointer->seat_destroy);
+	relative_pointer->seat_destroy.notify = relative_pointer_handle_seat_destroy;
 
 	wlr_signal_emit_safe(&relative_pointer_manager->events.new_relative_pointer,
 		relative_pointer);
@@ -141,9 +159,9 @@ static void relative_pointer_manager_v1_bind(struct wl_client *wl_client, void *
 }
 
 static void handle_display_destroy(struct wl_listener *listener, void *data) {
-	struct wlr_relative_pointer_manager_v1 *relative_pointer_manager =
+	struct wlr_relative_pointer_manager_v1 *manager =
-		wl_container_of(listener, relative_pointer_manager, display_destroy_listener);
+		wl_container_of(listener, manager, display_destroy_listener);
-	wlr_relative_pointer_manager_v1_destroy(relative_pointer_manager);
+	wlr_relative_pointer_manager_v1_destroy(manager);
 }
 
 
@@ -222,13 +240,22 @@ void wlr_relative_pointer_manager_v1_destroy(struct wlr_relative_pointer_manager
 void wlr_relative_pointer_v1_send_relative_motion(struct wlr_relative_pointer_v1 *relative_pointer,
 		uint64_t time, double dx, double dy,
 		double dx_unaccel, double dy_unaccel) {
+	struct wlr_seat_client *client =
+		relative_pointer->seat->pointer_state.focused_client;
+
+	if (client == NULL) {
+		return;
+	}
 	zwp_relative_pointer_v1_send_relative_motion(relative_pointer->resource,
 		(uint32_t)(time >> 32), (uint32_t)time,
 		wl_fixed_from_double(dx), wl_fixed_from_double(dy),
 		wl_fixed_from_double(dx_unaccel), wl_fixed_from_double(dy_unaccel));
-}
-
 
-struct wlr_relative_pointer_v1 *wlr_relative_pointer_v1_from_resource(struct wl_resource *resource) {
+	struct wl_resource *resource;
-	return relative_pointer_from_resource(resource);
+	wl_resource_for_each(resource, &client->pointers) {
+		if (wlr_seat_client_from_pointer_resource(resource) == NULL) {
+			continue;
+		}
+		wl_pointer_send_frame(resource);
+	}
 }