fdo-mirrors/libinput
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/libinput/libinput.git synced 2026-01-06 06:00:11 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

touchpad: Add support for swipe gestures

Browse source 
Add support for swipe gestures.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Jason Gerecke <jason.gerecke@wacom.com>
This commit is contained in:
Hans de Goede 2015-02-18 09:00:25 +01:00 • committed by Peter Hutterer
parent b8a2e5bc5f
commit 37c000ad5e
1 changed files with 39 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

39
src/evdev-mt-touchpad-gestures.c
View file

@ -76,6 +76,8 @@ tp_get_average_touches_delta(struct tp_dispatch *tp)
static void
tp_gesture_start(struct tp_dispatch *tp, uint64_t time)
{
const struct normalized_coords zero = { 0.0, 0.0 };
if (tp->gesture.started)
return;
@ -83,6 +85,13 @@ tp_gesture_start(struct tp_dispatch *tp, uint64_t time)
case 2:
/* NOP */
break;
case 3:
case 4:
gesture_notify_swipe(&tp->device->base, time,
LIBINPUT_EVENT_GESTURE_SWIPE_BEGIN,
tp->gesture.finger_count,
&zero, &zero);
break;
}
tp->gesture.started = true;
}
@ -141,6 +150,23 @@ tp_gesture_post_twofinger_scroll(struct tp_dispatch *tp, uint64_t time)
&delta);
}
static void
tp_gesture_post_swipe(struct tp_dispatch *tp, uint64_t time)
{
struct normalized_coords delta, unaccel;
unaccel = tp_get_average_touches_delta(tp);
delta = tp_filter_motion(tp, &unaccel, time);
if (!normalized_is_zero(delta) || !normalized_is_zero(unaccel)) {
tp_gesture_start(tp, time);
gesture_notify_swipe(&tp->device->base, time,
LIBINPUT_EVENT_GESTURE_SWIPE_UPDATE,
tp->gesture.finger_count,
&delta, &unaccel);
}
}
void
tp_gesture_post_events(struct tp_dispatch *tp, uint64_t time)
{
@ -165,6 +191,10 @@ tp_gesture_post_events(struct tp_dispatch *tp, uint64_t time)
case 2:
tp_gesture_post_twofinger_scroll(tp, time);
break;
case 3:
case 4:
tp_gesture_post_swipe(tp, time);
break;
}
}
@ -182,6 +212,8 @@ tp_gesture_stop_twofinger_scroll(struct tp_dispatch *tp, uint64_t time)
void
tp_gesture_stop(struct tp_dispatch *tp, uint64_t time)
{
const struct normalized_coords zero = { 0.0, 0.0 };
if (!tp->gesture.started)
return;
@ -189,6 +221,13 @@ tp_gesture_stop(struct tp_dispatch *tp, uint64_t time)
case 2:
tp_gesture_stop_twofinger_scroll(tp, time);
break;
case 3:
case 4:
gesture_notify_swipe(&tp->device->base, time,
LIBINPUT_EVENT_GESTURE_SWIPE_END,
tp->gesture.finger_count,
&zero, &zero);
break;
}
tp->gesture.started = false;
}