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gestures: where we have more fingers than slots, default to swipe

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Fixes #360

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Peter Hutterer 2019-09-19 13:56:32 +10:00
parent 129a1dffa4
commit cb1be90439
2 changed files with 59 additions and 0 deletions
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6
src/evdev-mt-touchpad-gestures.c
View file

@ -480,6 +480,12 @@ tp_gesture_handle_state_unknown(struct tp_dispatch *tp, uint64_t time)
double min_move = 1.5; /* min movement threshold in mm - count this touch */
double max_move = 4.0; /* max movement threshold in mm - ignore other touch */
/* If we have more fingers than slots, we don't know where the
* fingers are. Default to swipe */
if (tp->gesture.enabled && tp->gesture.finger_count > 2 &&
tp->gesture.finger_count > tp->num_slots)
return GESTURE_STATE_SWIPE;
/* Need more margin for error when there are more fingers */
max_move += 2.0 * (tp->gesture.finger_count - 2);
min_move += 0.5 * (tp->gesture.finger_count - 2);

53
test/test-gestures.c
View file

@ -259,6 +259,58 @@ START_TEST(gestures_swipe_3fg_btntool)
}
END_TEST
START_TEST(gestures_swipe_3fg_btntool_pinch_like)
{
struct litest_device *dev = litest_current_device();
struct libinput *li = dev->libinput;
struct libinput_event *event;
struct libinput_event_gesture *gevent;
if (libevdev_get_num_slots(dev->evdev) > 2 ||
!libevdev_has_event_code(dev->evdev, EV_KEY, BTN_TOOL_TRIPLETAP) ||
!libinput_device_has_capability(dev->libinput_device,
LIBINPUT_DEVICE_CAP_GESTURE))
return;
litest_drain_events(li);
/* Technically a pinch position + pinch movement, but expect swipe
* for nfingers > nslots */
litest_touch_down(dev, 0, 20, 60);
litest_touch_down(dev, 1, 50, 20);
litest_event(dev, EV_KEY, BTN_TOOL_DOUBLETAP, 0);
litest_event(dev, EV_KEY, BTN_TOOL_TRIPLETAP, 1);
litest_event(dev, EV_SYN, SYN_REPORT, 0);
libinput_dispatch(li);
litest_touch_move_to(dev, 0, 20, 60, 10, 80, 20);
libinput_dispatch(li);
event = libinput_get_event(li);
gevent = litest_is_gesture_event(event,
LIBINPUT_EVENT_GESTURE_SWIPE_BEGIN,
3);
libinput_event_destroy(event);
while ((event = libinput_get_event(li)) != NULL) {
gevent = litest_is_gesture_event(event,
LIBINPUT_EVENT_GESTURE_SWIPE_UPDATE,
3);
libinput_event_destroy(event);
}
litest_touch_up(dev, 0);
litest_touch_up(dev, 1);
libinput_dispatch(li);
event = libinput_get_event(li);
gevent = litest_is_gesture_event(event,
LIBINPUT_EVENT_GESTURE_SWIPE_END,
3);
ck_assert(!libinput_event_gesture_get_cancelled(gevent));
libinput_event_destroy(event);
}
END_TEST
START_TEST(gestures_swipe_4fg)
{
struct litest_device *dev = litest_current_device();
@ -1021,6 +1073,7 @@ TEST_COLLECTION(gestures)
litest_add_ranged("gestures:swipe", gestures_swipe_3fg, LITEST_TOUCHPAD, LITEST_SINGLE_TOUCH, &cardinals);
litest_add_ranged("gestures:swipe", gestures_swipe_3fg_btntool, LITEST_TOUCHPAD, LITEST_SINGLE_TOUCH, &cardinals);
litest_add("gestures:swipe", gestures_swipe_3fg_btntool_pinch_like, LITEST_TOUCHPAD, LITEST_SINGLE_TOUCH);
litest_add_ranged("gestures:swipe", gestures_swipe_4fg, LITEST_TOUCHPAD, LITEST_SINGLE_TOUCH, &cardinals);
litest_add_ranged("gestures:swipe", gestures_swipe_4fg_btntool, LITEST_TOUCHPAD, LITEST_SINGLE_TOUCH, &cardinals);
litest_add_ranged("gestures:pinch", gestures_pinch, LITEST_TOUCHPAD, LITEST_SINGLE_TOUCH, &cardinals);