From ced6665c754a45a84a308044ac6cfb8feeb7bca6 Mon Sep 17 00:00:00 2001
From: Tadeo Kondrak <me@tadeo.ca>
Date: Sun, 29 Dec 2019 04:10:51 -0700
Subject: [PATCH] Add support for cursor axis and frame events (#15)

For scrolling support.
---
 include/input/cursor.h |  2 ++
 kiwmi/input/cursor.c   | 35 +++++++++++++++++++++++++++++++++++
 2 files changed, 37 insertions(+)

diff --git a/include/input/cursor.h b/include/input/cursor.h
index 3c0feda..3727d2f 100644
--- a/include/input/cursor.h
+++ b/include/input/cursor.h
@@ -18,6 +18,8 @@ struct kiwmi_cursor {
     struct wl_listener cursor_motion;
     struct wl_listener cursor_motion_absolute;
     struct wl_listener cursor_button;
+    struct wl_listener cursor_axis;
+    struct wl_listener cursor_frame;
 };
 
 struct kiwmi_cursor *cursor_create(
diff --git a/kiwmi/input/cursor.c b/kiwmi/input/cursor.c
index 4cd466b..d2d6ed8 100644
--- a/kiwmi/input/cursor.c
+++ b/kiwmi/input/cursor.c
@@ -110,6 +110,35 @@ cursor_button_notify(struct wl_listener *listener, void *data)
     }
 }
 
+static void
+cursor_axis_notify(struct wl_listener *listener, void *data)
+{
+    struct kiwmi_cursor *cursor =
+        wl_container_of(listener, cursor, cursor_axis);
+    struct kiwmi_server *server          = cursor->server;
+    struct kiwmi_input *input            = &server->input;
+    struct wlr_event_pointer_axis *event = data;
+
+    wlr_seat_pointer_notify_axis(
+        input->seat,
+        event->time_msec,
+        event->orientation,
+        event->delta,
+        event->delta_discrete,
+        event->source);
+}
+
+static void
+cursor_frame_notify(struct wl_listener *listener, void *UNUSED(data))
+{
+    struct kiwmi_cursor *cursor =
+        wl_container_of(listener, cursor, cursor_frame);
+    struct kiwmi_server *server = cursor->server;
+    struct kiwmi_input *input   = &server->input;
+
+    wlr_seat_pointer_notify_frame(input->seat);
+}
+
 struct kiwmi_cursor *
 cursor_create(
     struct kiwmi_server *server,
@@ -147,5 +176,11 @@ cursor_create(
     cursor->cursor_button.notify = cursor_button_notify;
     wl_signal_add(&cursor->cursor->events.button, &cursor->cursor_button);
 
+    cursor->cursor_axis.notify = cursor_axis_notify;
+    wl_signal_add(&cursor->cursor->events.axis, &cursor->cursor_axis);
+
+    cursor->cursor_frame.notify = cursor_frame_notify;
+    wl_signal_add(&cursor->cursor->events.frame, &cursor->cursor_frame);
+
     return cursor;
 }