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Implement support for touchpad gestures

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This commit is contained in:
Povilas Kanapickas
2020-10-10 02:57:40 +03:00
parent 0d9184cb76
commit ecd845c307
1 changed files with 123 additions and 2 deletions
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125
src/xf86libinput.c
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@@ -78,6 +78,11 @@
#define CAP_TABLET 0x8
#define CAP_TABLET_TOOL 0x10
#define CAP_TABLET_PAD 0x20
#define CAP_GESTURE 0x40
#if ABI_XINPUT_VERSION >= SET_ABI_VERSION(24, 4)
#define HAS_GESTURES
#endif
struct xf86libinput_driver {
struct libinput *libinput;
@@ -1089,9 +1094,18 @@ xf86libinput_init_touch(InputInfoPtr pInfo)
if (ntouches == 0) /* unknown - mtdev */
ntouches = TOUCH_MAX_SLOTS;
InitTouchClassDeviceStruct(dev, ntouches, XIDirectTouch, 2);
}
#ifdef HAS_GESTURES
static void
xf86libinput_init_gesture(InputInfoPtr pInfo)
{
DeviceIntPtr dev = pInfo->dev;
int ntouches = TOUCH_MAX_SLOTS;
InitGestureClassDeviceStruct(dev, ntouches);
}
#endif
static int
xf86libinput_init_tablet_pen_or_eraser(InputInfoPtr pInfo,
struct libinput_tablet_tool *tool)
@@ -1335,6 +1349,10 @@ xf86libinput_init(DeviceIntPtr dev)
}
if (driver_data->capabilities & CAP_TOUCH)
xf86libinput_init_touch(pInfo);
#ifdef HAS_GESTURES
if (driver_data->capabilities & CAP_GESTURE)
xf86libinput_init_gesture(pInfo);
#endif
if (driver_data->capabilities & CAP_TABLET_TOOL)
xf86libinput_init_tablet(pInfo);
if (driver_data->capabilities & CAP_TABLET_PAD)
@@ -1737,6 +1755,86 @@ xf86libinput_handle_touch(InputInfoPtr pInfo,
xf86PostTouchEvent(dev, touchids[slot], type, 0, m);
}
#ifdef HAS_GESTURES
static void
xf86libinput_handle_gesture_swipe(InputInfoPtr pInfo,
struct libinput_event_gesture *event,
enum libinput_event_type event_type)
{
DeviceIntPtr dev = pInfo->dev;
struct xf86libinput *driver_data = pInfo->private;
int type;
uint32_t flags = 0;
if ((driver_data->capabilities & CAP_GESTURE) == 0)
return;
switch (event_type) {
case LIBINPUT_EVENT_GESTURE_SWIPE_BEGIN:
type = XI_GestureSwipeBegin;
break;
case LIBINPUT_EVENT_GESTURE_SWIPE_UPDATE:
type = XI_GestureSwipeUpdate;
break;
case LIBINPUT_EVENT_GESTURE_SWIPE_END:
type = XI_GestureSwipeEnd;
if (libinput_event_gesture_get_cancelled(event))
flags |= XIGestureSwipeEventCancelled;
break;
default:
return;
}
xf86PostGestureSwipeEvent(dev, type,
libinput_event_gesture_get_finger_count(event),
flags,
libinput_event_gesture_get_dx(event),
libinput_event_gesture_get_dy(event),
libinput_event_gesture_get_dx_unaccelerated(event),
libinput_event_gesture_get_dy_unaccelerated(event));
}
static void
xf86libinput_handle_gesture_pinch(InputInfoPtr pInfo,
struct libinput_event_gesture *event,
enum libinput_event_type event_type)
{
DeviceIntPtr dev = pInfo->dev;
struct xf86libinput *driver_data = pInfo->private;
int type;
uint32_t flags = 0;
if ((driver_data->capabilities & CAP_GESTURE) == 0)
return;
switch (event_type) {
case LIBINPUT_EVENT_GESTURE_PINCH_BEGIN:
type = XI_GesturePinchBegin;
break;
case LIBINPUT_EVENT_GESTURE_PINCH_UPDATE:
type = XI_GesturePinchUpdate;
break;
case LIBINPUT_EVENT_GESTURE_PINCH_END:
type = XI_GesturePinchEnd;
if (libinput_event_gesture_get_cancelled(event))
flags |= XIGesturePinchEventCancelled;
break;
default:
return;
}
xf86PostGesturePinchEvent(dev, type,
libinput_event_gesture_get_finger_count(event),
flags,
libinput_event_gesture_get_dx(event),
libinput_event_gesture_get_dy(event),
libinput_event_gesture_get_dx_unaccelerated(event),
libinput_event_gesture_get_dy_unaccelerated(event),
libinput_event_gesture_get_scale(event),
libinput_event_gesture_get_angle_delta(event));
}
#endif
static InputInfoPtr
xf86libinput_pick_device(struct xf86libinput_device *shared_device,
struct libinput_event *event)
@@ -2295,9 +2393,20 @@ xf86libinput_handle_event(struct libinput_event *event)
case LIBINPUT_EVENT_GESTURE_SWIPE_BEGIN:
case LIBINPUT_EVENT_GESTURE_SWIPE_UPDATE:
case LIBINPUT_EVENT_GESTURE_SWIPE_END:
#ifdef HAS_GESTURES
xf86libinput_handle_gesture_swipe(pInfo,
libinput_event_get_gesture_event(event),
type);
#endif
break;
case LIBINPUT_EVENT_GESTURE_PINCH_BEGIN:
case LIBINPUT_EVENT_GESTURE_PINCH_UPDATE:
case LIBINPUT_EVENT_GESTURE_PINCH_END:
#ifdef HAS_GESTURES
xf86libinput_handle_gesture_pinch(pInfo,
libinput_event_get_gesture_event(event),
type);
#endif
break;
case LIBINPUT_EVENT_TABLET_TOOL_AXIS:
event_handling = xf86libinput_handle_tablet_axis(pInfo,
@@ -3295,6 +3404,10 @@ xf86libinput_create_subdevice(InputInfoPtr pInfo,
options = xf86ReplaceBoolOption(options, "_libinput/cap-pointer", 1);
if (capabilities & CAP_TOUCH)
options = xf86ReplaceBoolOption(options, "_libinput/cap-touch", 1);
#ifdef HAS_GESTURES
if (capabilities & CAP_GESTURE)
options = xf86ReplaceBoolOption(options, "_libinput/cap-gesture", 1);
#endif
if (capabilities & CAP_TABLET_TOOL)
options = xf86ReplaceBoolOption(options, "_libinput/cap-tablet-tool", 1);
if (capabilities & CAP_TABLET_PAD)
@@ -3333,6 +3446,10 @@ caps_from_options(InputInfoPtr pInfo)
capabilities |= CAP_POINTER;
if (xf86CheckBoolOption(pInfo->options, "_libinput/cap-touch", 0))
capabilities |= CAP_TOUCH;
#ifdef HAS_GESTURES
if (xf86CheckBoolOption(pInfo->options, "_libinput/cap-gesture", 0))
capabilities |= CAP_GESTURE;
#endif
if (xf86CheckBoolOption(pInfo->options, "_libinput/cap-tablet-tool", 0))
capabilities |= CAP_TABLET_TOOL;
@@ -3478,6 +3595,10 @@ xf86libinput_pre_init(InputDriverPtr drv,
driver_data->capabilities |= CAP_KEYBOARD;
if (libinput_device_has_capability(device, LIBINPUT_DEVICE_CAP_TOUCH))
driver_data->capabilities |= CAP_TOUCH;
#ifdef HAS_GESTURES
if (libinput_device_has_capability(device, LIBINPUT_DEVICE_CAP_GESTURE))
driver_data->capabilities |= CAP_GESTURE;
#endif
if (libinput_device_has_capability(device, LIBINPUT_DEVICE_CAP_TABLET_TOOL))
driver_data->capabilities |= CAP_TABLET;
if (libinput_device_has_capability(device, LIBINPUT_DEVICE_CAP_TABLET_PAD))
@@ -3500,7 +3621,7 @@ xf86libinput_pre_init(InputDriverPtr drv,
* this device, create a separate device instead */
if (!is_subdevice &&
driver_data->capabilities & CAP_KEYBOARD &&
driver_data->capabilities & (CAP_POINTER|CAP_TOUCH)) {
driver_data->capabilities & (CAP_POINTER|CAP_TOUCH|CAP_GESTURE)) {
driver_data->capabilities &= ~CAP_KEYBOARD;
xf86libinput_create_subdevice(pInfo,
CAP_KEYBOARD,