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input: move touch only with one touch point

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In other words, do not move the cursor when more than
one finger is down.
This commit is contained in:
Jens Peters 2024-11-05 20:59:14 +01:00 • committed by Hiroaki Yamamoto
parent a3d8688c17
commit 3dbd5f30fc
1 changed files with 19 additions and 8 deletions
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19
src/input/touch.c
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@ -63,6 +63,8 @@ handle_touch_motion(struct wl_listener *listener, void *data)
struct wlr_touch_motion_event *event = data; struct wlr_touch_motion_event *event = data;
idle_manager_notify_activity(seat->seat); idle_manager_notify_activity(seat->seat);
int touch_point_count = wl_list_length(&seat->touch_points);
/* Find existing touch point to determine initial offsets to subtract */ /* Find existing touch point to determine initial offsets to subtract */
struct touch_point *touch_point; struct touch_point *touch_point;
wl_list_for_each(touch_point, &seat->touch_points, link) { wl_list_for_each(touch_point, &seat->touch_points, link) {
@ -77,14 +79,18 @@ handle_touch_motion(struct wl_listener *listener, void *data)
double sx = lx - touch_point->x_offset; double sx = lx - touch_point->x_offset;
double sy = ly - touch_point->y_offset; double sy = ly - touch_point->y_offset;
wlr_cursor_warp_absolute(seat->cursor, if (touch_point_count == 1) {
&event->touch->base, event->x, event->y); wlr_cursor_warp_absolute(seat->cursor, &event->touch->base,
event->x, event->y);
}
wlr_seat_touch_notify_motion(seat->seat, event->time_msec, wlr_seat_touch_notify_motion(seat->seat, event->time_msec,
event->touch_id, sx, sy); event->touch_id, sx, sy);
} else { } else {
if (touch_point_count == 1) {
cursor_emulate_move_absolute(seat, &event->touch->base, cursor_emulate_move_absolute(seat, &event->touch->base,
event->x, event->y, event->time_msec); event->x, event->y, event->time_msec);
} }
}
return; return;
} }
} }
@ -114,6 +120,7 @@ handle_touch_down(struct wl_listener *listener, void *data)
touch_point->y_offset = y_offset; touch_point->y_offset = y_offset;
wl_list_insert(&seat->touch_points, &touch_point->link); wl_list_insert(&seat->touch_points, &touch_point->link);
int touch_point_count = wl_list_length(&seat->touch_points);
if (touch_point->surface) { if (touch_point->surface) {
/* Convert coordinates: first [0, 1] => layout */ /* Convert coordinates: first [0, 1] => layout */
@ -135,13 +142,17 @@ handle_touch_down(struct wl_listener *listener, void *data)
} }
} }
wlr_cursor_warp_absolute(seat->cursor, if (touch_point_count == 1) {
&event->touch->base, event->x, event->y); wlr_cursor_warp_absolute(seat->cursor, &event->touch->base,
event->x, event->y);
}
wlr_seat_touch_notify_down(seat->seat, touch_point->surface, wlr_seat_touch_notify_down(seat->seat, touch_point->surface,
event->time_msec, event->touch_id, sx, sy); event->time_msec, event->touch_id, sx, sy);
} else { } else {
if (touch_point_count == 1) {
cursor_emulate_move_absolute(seat, &event->touch->base, cursor_emulate_move_absolute(seat, &event->touch->base,
event->x, event->y, event->time_msec); event->x, event->y, event->time_msec);
}
cursor_emulate_button(seat, BTN_LEFT, WL_POINTER_BUTTON_STATE_PRESSED, cursor_emulate_button(seat, BTN_LEFT, WL_POINTER_BUTTON_STATE_PRESSED,
event->time_msec); event->time_msec);
} }