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-rw-r--r--backend/x11/backend.c33
1 files changed, 24 insertions, 9 deletions
diff --git a/backend/x11/backend.c b/backend/x11/backend.c
index a8a18f8e..1eb5a952 100644
--- a/backend/x11/backend.c
+++ b/backend/x11/backend.c
@@ -62,16 +62,31 @@ static bool handle_x11_event(struct wlr_x11_backend *x11, xcb_generic_event_t *e
case XCB_BUTTON_PRESS:
case XCB_BUTTON_RELEASE: {
xcb_button_press_event_t *ev = (xcb_button_press_event_t *)event;
- struct wlr_event_pointer_button button = {
- .device = &x11->pointer_dev,
- .time_sec = ev->time / 1000,
- .time_usec = ev->time * 1000,
- .button = xcb_button_to_wl(ev->detail),
- .state = event->response_type == XCB_BUTTON_PRESS ?
- WLR_BUTTON_PRESSED : WLR_BUTTON_RELEASED,
- };
- wl_signal_emit(&x11->pointer.events.button, &button);
+ if (ev->detail == XCB_BUTTON_INDEX_4 ||
+ ev->detail == XCB_BUTTON_INDEX_5) {
+ double delta = (ev->detail == XCB_BUTTON_INDEX_4 ? -15 : 15);
+ struct wlr_event_pointer_axis axis = {
+ .device = &x11->pointer_dev,
+ .time_sec = ev->time / 1000,
+ .time_usec = ev->time * 1000,
+ .source = WLR_AXIS_SOURCE_WHEEL,
+ .orientation = WLR_AXIS_ORIENTATION_VERTICAL,
+ .delta = delta,
+ };
+ wl_signal_emit(&x11->pointer.events.axis, &axis);
+ } else {
+ struct wlr_event_pointer_button button = {
+ .device = &x11->pointer_dev,
+ .time_sec = ev->time / 1000,
+ .time_usec = ev->time * 1000,
+ .button = xcb_button_to_wl(ev->detail),
+ .state = event->response_type == XCB_BUTTON_PRESS ?
+ WLR_BUTTON_PRESSED : WLR_BUTTON_RELEASED,
+ };
+
+ wl_signal_emit(&x11->pointer.events.button, &button);
+ }
x11->time = ev->time;
break;
}