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tinywl: add high-resolution scroll support

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Demostrate how to use the high-resolution scroll API.
This commit is contained in:
José Expósito 2021-09-20 19:47:58 +02:00
parent d1e70dc133
commit e523182d73
1 changed files with 18 additions and 0 deletions
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18
tinywl/tinywl.c
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@ -45,6 +45,7 @@ struct tinywl_server {
struct wl_listener cursor_motion_absolute;
struct wl_listener cursor_button;
struct wl_listener cursor_axis;
struct wl_listener cursor_axis_value120;
struct wl_listener cursor_frame;
struct wlr_seat *seat;
@ -517,6 +518,20 @@ static void server_cursor_axis(struct wl_listener *listener, void *data) {
event->delta_discrete, event->source);
}
static void server_cursor_axis_value120(struct wl_listener *listener,
void *data) {
/* This event is forwarded by the cursor when a pointer emits a
* high-resolution axis event, for example when you move the scroll wheel
* using a gamming mouse. */
struct tinywl_server *server =
wl_container_of(listener, server, cursor_axis_value120);
struct wlr_event_pointer_axis_value120 *event = data;
/* Notify the client with pointer focus of the axis event. */
wlr_seat_pointer_notify_axis_value120(server->seat,
event->time_msec, event->orientation, event->delta,
event->delta_value120, event->source);
}
static void server_cursor_frame(struct wl_listener *listener, void *data) {
/* This event is forwarded by the cursor when a pointer emits an frame
* event. Frame events are sent after regular pointer events to group
@ -913,6 +928,9 @@ int main(int argc, char *argv[]) {
wl_signal_add(&server.cursor->events.button, &server.cursor_button);
server.cursor_axis.notify = server_cursor_axis;
wl_signal_add(&server.cursor->events.axis, &server.cursor_axis);
server.cursor_axis_value120.notify = server_cursor_axis_value120;
wl_signal_add(&server.cursor->events.axis_value120,
&server.cursor_axis_value120);
server.cursor_frame.notify = server_cursor_frame;
wl_signal_add(&server.cursor->events.frame, &server.cursor_frame);