1 files changed, 16 insertions, 0 deletions

diff --git a/sway/input/seatop_down.c b/sway/input/seatop_down.c
index 95ea7cbb..04de894d 100644
--- a/sway/input/seatop_down.c
+++ b/sway/input/seatop_down.c
@@ -1,4 +1,5 @@
 #define _POSIX_C_SOURCE 200809L
+#include <float.h>
 #include <wlr/types/wlr_cursor.h>
 #include "sway/input/cursor.h"
 #include "sway/input/seat.h"
@@ -11,6 +12,20 @@ struct seatop_down_event {
         double ref_con_lx, ref_con_ly; // container's x/y at start of op
 };
 
+static void handle_axis(struct sway_seat *seat,
+                struct wlr_event_pointer_axis *event) {
+        struct sway_input_device *input_device =
+                event->device ? event->device->data : NULL;
+        struct input_config *ic =
+                input_device ? input_device_get_config(input_device) : NULL;
+        float scroll_factor =
+                (ic == NULL || ic->scroll_factor == FLT_MIN) ? 1.0f : ic->scroll_factor;
+
+        wlr_seat_pointer_notify_axis(seat->wlr_seat, event->time_msec,
+                event->orientation, scroll_factor * event->delta,
+                round(scroll_factor * event->delta_discrete), event->source);
+}
+
 static void handle_button(struct sway_seat *seat, uint32_t time_msec,
                 struct wlr_input_device *device, uint32_t button,
                 enum wlr_button_state state) {
@@ -42,6 +57,7 @@ static void handle_unref(struct sway_seat *seat, struct sway_container *con) {
 }
 
 static const struct sway_seatop_impl seatop_impl = {
+        .axis = handle_axis,
         .button = handle_button,
         .motion = handle_motion,
         .unref = handle_unref,