xf86-input-libinput 1.2.0

Signed-off-by: Povilas Kanapickas <povilas@radix.lt>

.gitlab-ci.yml

@@ -19,7 +19,8 @@ stages:
   variables:
     FDO_DISTRIBUTION_VERSION: 33
     FDO_DISTRIBUTION_PACKAGES: 'git autoconf automake libtool make xorg-x11-server-devel libudev-devel libevdev-devel libinput-devel xorg-x11-util-macros'
-    FDO_DISTRIBUTION_TAG: '2021-04-06.0'
+    FDO_DISTRIBUTION_EXEC: 'env FDO_CI_CONCURRENT=${FDO_CI_CONCURRENT} bash .gitlab-ci/fedora-install.sh'
+    FDO_DISTRIBUTION_TAG: '2021-09-15.0'
 
 
 fedora@container_build:

.gitlab-ci/fedora-install.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+# we require at least inputproto >= 2.3.99.1 which has been released in xorgproto 2021.5
+git clone https://gitlab.freedesktop.org/xorg/proto/xorgproto.git --depth 1 --branch=xorgproto-2021.5
+pushd xorgproto
+./autogen.sh
+make -j${FDO_CI_CONCURRENT:-4} install
+popd
+rm -rf xorgproto

configure.ac

@@ -23,7 +23,7 @@
 # Initialize Autoconf
 AC_PREREQ([2.60])
 AC_INIT([xf86-input-libinput],
-        [1.0.1],
+        [1.2.0],
         [https://gitlab.freedesktop.org/xorg/driver/xf86-input-libinput/issues],
         [xf86-input-libinput])
 AC_CONFIG_SRCDIR([Makefile.am])
@@ -47,6 +47,9 @@ XORG_DEFAULT_OPTIONS
 PKG_CHECK_MODULES(XORG, [xorg-server >= 1.19] xproto [inputproto >= 2.2])
 PKG_CHECK_MODULES(LIBINPUT, [libinput >= 1.11.0])
 
+PKG_CHECK_MODULES(INPUTPROTO24, [inputproto >= 2.3.99.1],
+		  [AC_DEFINE(HAVE_INPUTPROTO24, [1], [inputproto 2.4 is available])])
+
 OLD_LIBS=$LIBS
 OLD_CFLAGS=$CFLAGS
 LIBS="$LIBS $LIBINPUT_LIBS"
@@ -62,6 +65,18 @@ AC_LINK_IFELSE(
                 [libinput_have_scroll_button_lock=yes]],
                [AC_MSG_RESULT([no])
                 [libinput_have_scroll_button_lock=no]])
+
+AC_MSG_CHECKING([if libinput_event_pointer_get_scroll_value_v120 is available])
+AC_LINK_IFELSE(
+               [AC_LANG_PROGRAM([[#include <libinput.h>]],
+                                [[libinput_event_pointer_get_scroll_value_v120(NULL, 0)]])],
+               [AC_MSG_RESULT([yes])
+                AC_DEFINE(HAVE_LIBINPUT_AXIS_VALUE_V120, [1],
+                          [libinput_event_pointer_get_scroll_value_v120() is available])
+                [libinput_have_axis_value_v120=yes]],
+               [AC_MSG_RESULT([no])
+                [libinput_have_axis_value_v120=no]])
+
 LIBS=$OLD_LIBS
 CFLAGS=$OLD_CFLAGS
 

include/libinput-properties.h

@@ -123,6 +123,12 @@
 /* Scroll button lock: BOOL, 1 value, TRUE for enabled, FALSE otherwise, read-only*/
 #define LIBINPUT_PROP_SCROLL_BUTTON_LOCK_DEFAULT "libinput Button Scrolling Button Lock Enabled Default"
 
+/* Scroll pixel distance: CARD32, 1 value (with implementation-defined limits) */
+#define LIBINPUT_PROP_SCROLL_PIXEL_DISTANCE "libinput Scrolling Pixel Distance"
+
+/* Scroll pixel distance: CARD32, 1 value, read-only */
+#define LIBINPUT_PROP_SCROLL_PIXEL_DISTANCE_DEFAULT "libinput Scrolling Pixel Distance Default"
+
 /* Click method: BOOL read-only, 2 values in order buttonareas, clickfinger
    shows available click methods */
 #define LIBINPUT_PROP_CLICK_METHODS_AVAILABLE "libinput Click Methods Available"

man/libinput.man

@@ -160,6 +160,16 @@ Enables a scroll method. Permitted values are
 Not all devices support all options, if an option is unsupported, the
 default scroll option for this device is used.
 .TP 7
+.BI "Option \*qScrollPixelDistance\*q \*q" int \*q
+Sets the movement distance, in "pixels", required to trigger one logical
+wheel click. This option only applies to the scroll methods
+.BI twofinger,
+.BI edge,
+.BI button.
+See section
+.B SCROLL PIXEL DISTANCE
+for more details.
+.TP 7
 .BI "Option \*qSendEventsMode\*q \*q" (disabled|enabled|disabled-on-external-mouse) \*q
 Sets the send events mode to disabled, enabled, or "disable when an external
 mouse is connected".
@@ -279,6 +289,10 @@ Indicates which scroll methods are available on this device.
 3 boolean values (8 bit, 0 or 1), in order "two-finger", "edge", "button".
 Indicates which scroll method is currently enabled on this device.
 .TP 7
+.BI "libinput Scroll Pixel Distance"
+1 32-bit value (nonzero, with additional implementation-defined range checks).
+Changes the movement distance required to trigger one logical wheel click.
+.TP 7
 .BI "libinput Send Events Modes Available"
 2 boolean values (8 bit, 0 or 1), in order "disabled" and
 "disabled-on-external-mouse". Indicates which send-event modes are available
@@ -396,6 +410,17 @@ it takes left-handed-ness into account.
 .TP
 This feature is provided by this driver, not by libinput.
 
+.SH SCROLL PIXEL DISTANCE
+The X server does not support per-pixel scrolling but it does support
+smooth scrolling. All scroll events however are based around a logical
+unit of scrolling (traditionally corresponding to a wheel click).
+It is thus not possible to scroll by 10 pixels, but it is possible for a
+driver to scroll by 1/10th of a logical wheel click.
+.PP
+libinput provides scroll data in pixels. The \fBScrollPixelDistance\fR
+option defines the amount of movement equivalent to one wheel click. For
+example, a value of 50 means the user has to move a finger by 50 pixels to
+generate one logical click event and each pixel is 1/50th of a wheel click.
 .SH BUGS
 This driver does not work with \fBOption \*qDevice\*q\fR set to an event
 node in \fI/dev/input/by-id\fR and \fI/dev/input/by-path\fR. This can be

src/xf86libinput.c

@@ -52,6 +52,9 @@
 #define TABLET_NUM_BUTTONS 7 /* we need scroll buttons */
 #define TOUCH_MAX_SLOTS 15
 #define XORG_KEYCODE_OFFSET 8
+#define SCROLL_INCREMENT 15
+#define TOUCHPAD_SCROLL_DIST_MIN 10 /* in libinput pixels */
+#define TOUCHPAD_SCROLL_DIST_MAX 50 /* in libinput pixels */
 
 #define streq(a, b) (strcmp(a, b) == 0)
 #define strneq(a, b, n) (strncmp(a, b, n) == 0)
@@ -75,6 +78,13 @@
 #define CAP_TABLET	0x8
 #define CAP_TABLET_TOOL	0x10
 #define CAP_TABLET_PAD	0x20
+#define CAP_GESTURE	0x40
+
+#if HAVE_INPUTPROTO24
+#if ABI_XINPUT_VERSION >= SET_ABI_VERSION(24, 4)
+#define HAVE_GESTURES
+#endif
+#endif
 
 struct xf86libinput_driver {
 	struct libinput *libinput;
@@ -146,6 +156,7 @@ struct xf86libinput {
 		CARD32 sendevents;
 		CARD32 scroll_button; /* xorg button number */
 		BOOL scroll_buttonlock;
+		uint32_t scroll_pixel_distance;
 		float speed;
 		float matrix[9];
 		enum libinput_config_scroll_method scroll_method;
@@ -1085,9 +1096,18 @@ xf86libinput_init_touch(InputInfoPtr pInfo)
 	if (ntouches == 0) /* unknown -  mtdev */
 		ntouches = TOUCH_MAX_SLOTS;
 	InitTouchClassDeviceStruct(dev, ntouches, XIDirectTouch, 2);
-
 }
 
+#ifdef HAVE_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)
@@ -1331,6 +1351,10 @@ xf86libinput_init(DeviceIntPtr dev)
 	}
 	if (driver_data->capabilities & CAP_TOUCH)
 		xf86libinput_init_touch(pInfo);
+#ifdef HAVE_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)
@@ -1543,9 +1567,9 @@ xf86libinput_handle_key(InputInfoPtr pInfo, struct libinput_event_keyboard *even
  * so the use-case above shouldn't matter anymore.
  */
 static inline double
-get_wheel_scroll_value(struct xf86libinput *driver_data,
-		       struct libinput_event_pointer *event,
-		       enum libinput_pointer_axis axis)
+guess_wheel_scroll_value(struct xf86libinput *driver_data,
+			 struct libinput_event_pointer *event,
+			 enum libinput_pointer_axis axis)
 {
 	struct scroll_axis *s;
 	double f;
@@ -1605,23 +1629,91 @@ out:
 	return s->dist/s->fraction * discrete;
 }
 
+#if HAVE_LIBINPUT_AXIS_VALUE_V120
+static inline double
+get_wheel_120_value(struct xf86libinput *driver_data,
+		    struct libinput_event_pointer *event,
+		    enum libinput_pointer_axis axis)
+{
+	struct scroll_axis *s;
+	double angle;
+
+	switch (axis) {
+	case LIBINPUT_POINTER_AXIS_SCROLL_HORIZONTAL:
+		s = &driver_data->scroll.h;
+		break;
+	case LIBINPUT_POINTER_AXIS_SCROLL_VERTICAL:
+		s = &driver_data->scroll.v;
+		break;
+	default:
+		return 0.0;
+	}
+
+	angle = libinput_event_pointer_get_scroll_value_v120(event, axis);
+	return s->dist * angle/120;
+}
+#endif
+
+static inline double
+get_wheel_scroll_value(struct xf86libinput *driver_data,
+		       struct libinput_event_pointer *event,
+		       enum libinput_pointer_axis axis)
+{
+#if HAVE_LIBINPUT_AXIS_VALUE_V120
+	return get_wheel_120_value(driver_data, event, axis);
+#else
+	return guess_wheel_scroll_value(driver_data, event, axis);
+#endif
+}
+
+static inline double
+get_finger_or_continuous_scroll_value(struct libinput_event_pointer *event,
+				      enum libinput_pointer_axis axis)
+{
+#if HAVE_LIBINPUT_AXIS_VALUE_V120
+	return libinput_event_pointer_get_scroll_value(event, axis);
+#else
+	return libinput_event_pointer_get_axis_value(event, axis);
+#endif
+}
+
 static inline bool
 calculate_axis_value(struct xf86libinput *driver_data,
 		     enum libinput_pointer_axis axis,
 		     struct libinput_event_pointer *event,
+		     enum libinput_pointer_axis_source source,
 		     double *value_out)
 {
-	enum libinput_pointer_axis_source source;
 	double value;
 
 	if (!libinput_event_pointer_has_axis(event, axis))
 		return false;
 
-	source = libinput_event_pointer_get_axis_source(event);
+	/* Event may be LIBINPUT_POINTER_AXIS or
+	 * LIBINPUT_EVENT_POINTER_SCROLL_{WHEEL|FINGER|CONTINUOUS}, depending
+	 * on the libinput version.
+	 *
+	 * libinput guarantees the axis source is set for the second set of
+	 * events too but we can switch to the event type once we ditch
+	 * libinput < 1.19 support.
+	 */
 	if (source == LIBINPUT_POINTER_AXIS_SOURCE_WHEEL) {
 		value = get_wheel_scroll_value(driver_data, event, axis);
 	} else {
-		value = libinput_event_pointer_get_axis_value(event, axis);
+		double dist = driver_data->options.scroll_pixel_distance;
+		assert(dist != 0.0);
+
+		value = get_finger_or_continuous_scroll_value(event, axis);
+		/* We need to scale this value into our scroll increment range
+		 * because that one is constant for the lifetime of the
+		 * device. The user may change the ScrollPixelDistance
+		 * though, so where we have a dist of 10 but an increment of
+		 * 15, we need to scale from 0..10 into 0..15.
+		 *
+		 * We now switched to vdist of 120, so make this
+		 * proportionate - 120/15 is 8.
+		 */
+		value = value/dist * SCROLL_INCREMENT * 8;
 	}
 
 	*value_out = value;
@@ -1630,32 +1722,26 @@ calculate_axis_value(struct xf86libinput *driver_data,
 }
 
 static void
-xf86libinput_handle_axis(InputInfoPtr pInfo, struct libinput_event_pointer *event)
+xf86libinput_handle_axis(InputInfoPtr pInfo,
+			 struct libinput_event *e,
+			 enum libinput_pointer_axis_source source)
 {
+	struct libinput_event_pointer *event;
 	DeviceIntPtr dev = pInfo->dev;
 	struct xf86libinput *driver_data = pInfo->private;
 	ValuatorMask *mask = driver_data->valuators;
 	double value;
-	enum libinput_pointer_axis_source source;
 
 	if ((driver_data->capabilities & CAP_POINTER) == 0)
 		return;
 
 	valuator_mask_zero(mask);
 
-	source = libinput_event_pointer_get_axis_source(event);
-	switch(source) {
-		case LIBINPUT_POINTER_AXIS_SOURCE_FINGER:
-		case LIBINPUT_POINTER_AXIS_SOURCE_WHEEL:
-		case LIBINPUT_POINTER_AXIS_SOURCE_CONTINUOUS:
-			break;
-		default:
-			return;
-	}
-
+	event = libinput_event_get_pointer_event(e);
 	if (calculate_axis_value(driver_data,
 				 LIBINPUT_POINTER_AXIS_SCROLL_VERTICAL,
 				 event,
+				 source,
 				 &value))
 		valuator_mask_set_double(mask, 3, value);
 
@@ -1665,9 +1751,15 @@ xf86libinput_handle_axis(InputInfoPtr pInfo, struct libinput_event_pointer *even
 	if (calculate_axis_value(driver_data,
 				 LIBINPUT_POINTER_AXIS_SCROLL_HORIZONTAL,
 				 event,
+				 source,
 				 &value))
 		valuator_mask_set_double(mask, 2, value);
 
+	if (source == LIBINPUT_POINTER_AXIS_SOURCE_WHEEL &&
+	    !valuator_mask_isset(mask, 2) &&
+	    !valuator_mask_isset(mask, 3))
+		return;
+
 out:
 	xf86PostMotionEventM(dev, Relative, mask);
 }
@@ -1723,6 +1815,86 @@ xf86libinput_handle_touch(InputInfoPtr pInfo,
 	xf86PostTouchEvent(dev, touchids[slot], type, 0, m);
 }
 
+#ifdef HAVE_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)
@@ -2265,9 +2437,30 @@ xf86libinput_handle_event(struct libinput_event *event)
 						libinput_event_get_keyboard_event(event));
 			break;
 		case LIBINPUT_EVENT_POINTER_AXIS:
+#if !HAVE_LIBINPUT_AXIS_VALUE_V120
+			/* ignore POINTER_AXIS where we have libinput 1.19 and higher */
 			xf86libinput_handle_axis(pInfo,
-						 libinput_event_get_pointer_event(event));
+						 event,
+						 libinput_event_pointer_get_axis_source(event));
+#endif
 			break;
+#if HAVE_LIBINPUT_AXIS_VALUE_V120
+		case LIBINPUT_EVENT_POINTER_SCROLL_WHEEL:
+			xf86libinput_handle_axis(pInfo,
+						 event,
+						 LIBINPUT_POINTER_AXIS_SOURCE_WHEEL);
+			break;
+		case LIBINPUT_EVENT_POINTER_SCROLL_FINGER:
+			xf86libinput_handle_axis(pInfo,
+						 event,
+						 LIBINPUT_POINTER_AXIS_SOURCE_FINGER);
+			break;
+		case LIBINPUT_EVENT_POINTER_SCROLL_CONTINUOUS:
+			xf86libinput_handle_axis(pInfo,
+						 event,
+						 LIBINPUT_POINTER_AXIS_SOURCE_CONTINUOUS);
+			break;
+#endif
 		case LIBINPUT_EVENT_TOUCH_FRAME:
 			break;
 		case LIBINPUT_EVENT_TOUCH_UP:
@@ -2281,9 +2474,20 @@ 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 HAVE_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 HAVE_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,
@@ -2826,6 +3030,39 @@ xf86libinput_parse_scrollbuttonlock_option(InputInfoPtr pInfo,
 	return buttonlock;
 }
 
+static inline bool
+xf86libinput_want_scroll_distance_option(struct libinput_device *device)
+{
+	uint32_t methods =
+	    LIBINPUT_CONFIG_SCROLL_ON_BUTTON_DOWN |
+	    LIBINPUT_CONFIG_SCROLL_2FG |
+	    LIBINPUT_CONFIG_SCROLL_EDGE;
+
+	if ((libinput_device_config_scroll_get_methods(device) & methods) == 0)
+		return false;
+
+	return true;
+}
+
+static inline uint32_t
+xf86libinput_parse_scroll_pixel_distance_option(InputInfoPtr pInfo,
+						struct libinput_device *device)
+{
+	uint32_t dflt = SCROLL_INCREMENT;
+	uint32_t dist;
+
+	if (!xf86libinput_want_scroll_distance_option(device))
+		return dflt;
+
+	dist = xf86SetIntOption(pInfo->options, "ScrollPixelDistance", dflt);
+	if (dist < TOUCHPAD_SCROLL_DIST_MIN || dist > TOUCHPAD_SCROLL_DIST_MAX) {
+		xf86IDrvMsg(pInfo, X_ERROR,
+			    "Invalid ScrollPixelDistance %d\n", dist);
+		dist = dflt;
+	}
+	return dist;
+}
+
 static inline unsigned int
 xf86libinput_parse_clickmethod_option(InputInfoPtr pInfo,
 				      struct libinput_device *device)
@@ -3107,6 +3344,7 @@ xf86libinput_parse_options(InputInfoPtr pInfo,
 	options->scroll_method = xf86libinput_parse_scroll_option(pInfo, device);
 	options->scroll_button = xf86libinput_parse_scrollbutton_option(pInfo, device);
 	options->scroll_buttonlock = xf86libinput_parse_scrollbuttonlock_option(pInfo, device);
+	options->scroll_pixel_distance = xf86libinput_parse_scroll_pixel_distance_option(pInfo, device);
 	options->click_method = xf86libinput_parse_clickmethod_option(pInfo, device);
 	options->middle_emulation = xf86libinput_parse_middleemulation_option(pInfo, device);
 	options->disable_while_typing = xf86libinput_parse_disablewhiletyping_option(pInfo, device);
@@ -3247,6 +3485,10 @@ xf86libinput_create_subdevice(InputInfoPtr pInfo,
 		options = xf86ReplaceBoolOption(options, "_libinput/cap-pointer", 1);
 	if (capabilities & CAP_TOUCH)
 		options = xf86ReplaceBoolOption(options, "_libinput/cap-touch", 1);
+#ifdef HAVE_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)
@@ -3285,6 +3527,10 @@ caps_from_options(InputInfoPtr pInfo)
 		capabilities |= CAP_POINTER;
 	if (xf86CheckBoolOption(pInfo->options, "_libinput/cap-touch", 0))
 		capabilities |= CAP_TOUCH;
+#ifdef HAVE_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;
 
@@ -3420,8 +3666,8 @@ xf86libinput_pre_init(InputDriverPtr drv,
 	 * affect touchpad scroll speed. For wheels it doesn't matter as
 	 * we're using the discrete value only.
 	 */
-	driver_data->scroll.v.dist = 15;
-	driver_data->scroll.h.dist = 15;
+	driver_data->scroll.v.dist = 120;
+	driver_data->scroll.h.dist = 120;
 
 	if (!is_subdevice) {
 		if (libinput_device_has_capability(device, LIBINPUT_DEVICE_CAP_POINTER))
@@ -3430,6 +3676,10 @@ 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 HAVE_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))
@@ -3452,7 +3702,7 @@ 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,
@@ -3563,6 +3813,8 @@ static Atom prop_scroll_button;
 static Atom prop_scroll_button_default;
 static Atom prop_scroll_buttonlock;
 static Atom prop_scroll_buttonlock_default;
+static Atom prop_scroll_pixel_distance;
+static Atom prop_scroll_pixel_distance_default;
 static Atom prop_click_methods_available;
 static Atom prop_click_method_enabled;
 static Atom prop_click_method_default;
@@ -3684,7 +3936,7 @@ update_mode_prop(InputInfoPtr pInfo,
 }
 
 static inline BOOL
-xf86libinput_check_device (DeviceIntPtr dev,
+xf86libinput_check_device(DeviceIntPtr dev,
 			   Atom atom)
 {
 	InputInfoPtr pInfo = dev->public.devicePrivate;
@@ -3722,7 +3974,7 @@ LibinputSetPropertyTap(DeviceIntPtr dev,
 		if (*data != 0 && *data != 1)
 			return BadValue;
 
-		if (!xf86libinput_check_device (dev, atom))
+		if (!xf86libinput_check_device(dev, atom))
 			return BadMatch;
 
 		if (libinput_device_config_tap_get_finger_count(device) == 0)
@@ -3816,7 +4068,7 @@ LibinputSetPropertyTapButtonmap(DeviceIntPtr dev,
 	    if ((data[0] && data[1]) || (!data[0] && !data[1]))
 		return BadValue;
 
-	    if (!xf86libinput_check_device (dev, atom))
+	    if (!xf86libinput_check_device(dev, atom))
 		return BadMatch;
 	}
 
@@ -3855,7 +4107,7 @@ LibinputSetPropertyCalibration(DeviceIntPtr dev,
 		    data[8] != 1.0)
 			return BadValue;
 
-		if (!xf86libinput_check_device (dev, atom))
+		if (!xf86libinput_check_device(dev, atom))
 			return BadMatch;
 
 		if (!libinput_device_config_calibration_has_matrix(device))
@@ -3889,7 +4141,7 @@ LibinputSetPropertyAccel(DeviceIntPtr dev,
 		if (*data < -1.0 || *data > 1.0)
 			return BadValue;
 
-		if (!xf86libinput_check_device (dev, atom))
+		if (!xf86libinput_check_device(dev, atom))
 			return BadMatch;
 
 		if (libinput_device_config_accel_is_available(device) == 0)
@@ -3929,7 +4181,7 @@ LibinputSetPropertyAccelProfile(DeviceIntPtr dev,
 		if (__builtin_popcount(profiles) > 1)
 			return BadValue;
 
-		if (!xf86libinput_check_device (dev, atom))
+		if (!xf86libinput_check_device(dev, atom))
 			return BadMatch;
 
 		supported = libinput_device_config_accel_get_profiles(device);
@@ -3962,7 +4214,7 @@ LibinputSetPropertyNaturalScroll(DeviceIntPtr dev,
 		if (*data != 0 && *data != 1)
 			return BadValue;
 
-		if (!xf86libinput_check_device (dev, atom))
+		if (!xf86libinput_check_device(dev, atom))
 			return BadMatch;
 
 		if (libinput_device_config_scroll_has_natural_scroll(device) == 0)
@@ -3999,7 +4251,7 @@ LibinputSetPropertySendEvents(DeviceIntPtr dev,
 	if (checkonly) {
 		uint32_t supported;
 
-		if (!xf86libinput_check_device (dev, atom))
+		if (!xf86libinput_check_device(dev, atom))
 			return BadMatch;
 
 		supported = libinput_device_config_send_events_get_modes(device);
@@ -4033,7 +4285,7 @@ LibinputSetPropertyLeftHanded(DeviceIntPtr dev,
 		int supported;
 		int left_handed = *data;
 
-		if (!xf86libinput_check_device (dev, atom))
+		if (!xf86libinput_check_device(dev, atom))
 			return BadMatch;
 
 		supported = libinput_device_config_left_handed_is_available(device);
@@ -4097,7 +4349,7 @@ LibinputSetPropertyScrollMethods(DeviceIntPtr dev,
 		if (__builtin_popcount(modes) > 1)
 			return BadValue;
 
-		if (!xf86libinput_check_device (dev, atom))
+		if (!xf86libinput_check_device(dev, atom))
 			return BadMatch;
 
 		supported = libinput_device_config_scroll_get_methods(device);
@@ -4130,7 +4382,7 @@ LibinputSetPropertyScrollButton(DeviceIntPtr dev,
 		uint32_t button = *data;
 		uint32_t supported;
 
-		if (!xf86libinput_check_device (dev, atom))
+		if (!xf86libinput_check_device(dev, atom))
 			return BadMatch;
 
 		supported = libinput_device_pointer_has_button(device,
@@ -4162,7 +4414,7 @@ LibinputSetPropertyScrollButtonLock(DeviceIntPtr dev,
 		if (enabled != 0 && enabled != 1)
 			return BadValue;
 
-		if (!xf86libinput_check_device (dev, atom))
+		if (!xf86libinput_check_device(dev, atom))
 			return BadMatch;
 	} else {
 		driver_data->options.scroll_buttonlock = enabled;
@@ -4371,7 +4623,7 @@ LibinputSetPropertyHorizScroll(DeviceIntPtr dev,
 		if (enabled != 0 && enabled != 1)
 			return BadValue;
 
-		if (!xf86libinput_check_device (dev, atom))
+		if (!xf86libinput_check_device(dev, atom))
 			return BadMatch;
 	} else {
 		driver_data->options.horiz_scrolling_enabled = enabled;
@@ -4380,6 +4632,34 @@ LibinputSetPropertyHorizScroll(DeviceIntPtr dev,
 	return Success;
 }
 
+static inline int
+LibinputSetPropertyScrollPixelDistance(DeviceIntPtr dev,
+				       Atom atom,
+				       XIPropertyValuePtr val,
+				       BOOL checkonly)
+{
+	InputInfoPtr pInfo = dev->public.devicePrivate;
+	struct xf86libinput *driver_data = pInfo->private;
+	uint32_t dist;
+
+	if (val->format != 32 || val->type != XA_CARDINAL || val->size != 1)
+		return BadMatch;
+
+	dist = *(BOOL*)val->data;
+	if (checkonly) {
+		if (dist < TOUCHPAD_SCROLL_DIST_MIN ||
+		    dist > TOUCHPAD_SCROLL_DIST_MAX)
+			return BadValue;
+
+		if (!xf86libinput_check_device(dev, atom))
+			return BadMatch;
+	} else {
+		driver_data->options.scroll_pixel_distance = dist;
+	}
+
+	return Success;
+}
+
 static inline int
 LibinputSetPropertyRotationAngle(DeviceIntPtr dev,
 				 Atom atom,
@@ -4400,7 +4680,7 @@ LibinputSetPropertyRotationAngle(DeviceIntPtr dev,
 		if (*angle < 0.0 || *angle >= 360.0)
 			return BadValue;
 
-		if (!xf86libinput_check_device (dev, atom))
+		if (!xf86libinput_check_device(dev, atom))
 			return BadMatch;
 
 		if (libinput_device_config_rotation_is_available(device) == 0)
@@ -4444,7 +4724,7 @@ LibinputSetPropertyPressureCurve(DeviceIntPtr dev,
 				return BadValue;
 		}
 
-		if (!xf86libinput_check_device (dev, atom))
+		if (!xf86libinput_check_device(dev, atom))
 			return BadMatch;
 
 		if (!cubic_bezier(controls, test_bezier, ARRAY_SIZE(test_bezier)))
@@ -4484,7 +4764,7 @@ LibinputSetPropertyAreaRatio(DeviceIntPtr dev,
 		    (area.x == 0 && area.y != 0))
 			return BadValue;
 
-		if (!xf86libinput_check_device (dev, atom))
+		if (!xf86libinput_check_device(dev, atom))
 			return BadMatch;
 	} else {
 		struct xf86libinput *other;
@@ -4557,6 +4837,8 @@ LibinputSetProperty(DeviceIntPtr dev, Atom atom, XIPropertyValuePtr val,
 		rc = LibinputSetPropertyDragLockButtons(dev, atom, val, checkonly);
 	else if (atom == prop_horiz_scroll)
 		rc = LibinputSetPropertyHorizScroll(dev, atom, val, checkonly);
+	else if (atom == prop_scroll_pixel_distance)
+		rc = LibinputSetPropertyScrollPixelDistance(dev, atom, val, checkonly);
 	else if (atom == prop_mode_groups) {
 		InputInfoPtr pInfo = dev->public.devicePrivate;
 		struct xf86libinput *driver_data = pInfo->private;
@@ -4588,6 +4870,7 @@ LibinputSetProperty(DeviceIntPtr dev, Atom atom, XIPropertyValuePtr val,
 		 atom == prop_scroll_methods_available ||
 		 atom == prop_scroll_button_default ||
 		 atom == prop_scroll_buttonlock_default ||
+		 atom == prop_scroll_pixel_distance_default ||
 		 atom == prop_click_method_default ||
 		 atom == prop_click_methods_available ||
 		 atom == prop_middle_emulation_default ||
@@ -5114,6 +5397,32 @@ LibinputInitScrollMethodsProperty(DeviceIntPtr dev,
 	}
 }
 
+static void
+LibinputInitScrollPixelDistanceProperty(DeviceIntPtr dev,
+					struct xf86libinput *driver_data,
+					struct libinput_device *device)
+{
+	CARD32 dist = driver_data->options.scroll_pixel_distance;
+
+	if (!subdevice_has_capabilities(dev, CAP_POINTER))
+		return;
+
+	if (!xf86libinput_want_scroll_distance_option(device))
+		return;
+
+	prop_scroll_pixel_distance = LibinputMakeProperty(dev,
+							  LIBINPUT_PROP_SCROLL_PIXEL_DISTANCE,
+							  XA_CARDINAL, 32,
+							  1, &dist);
+	if (!prop_scroll_pixel_distance)
+		return;
+
+	prop_scroll_pixel_distance_default = LibinputMakeProperty(dev,
+								  LIBINPUT_PROP_SCROLL_PIXEL_DISTANCE_DEFAULT,
+								  XA_CARDINAL, 32,
+								  1, &dist);
+}
+
 static void
 LibinputInitClickMethodsProperty(DeviceIntPtr dev,
 				 struct xf86libinput *driver_data,
@@ -5555,6 +5864,7 @@ LibinputInitProperty(DeviceIntPtr dev)
 
 	LibinputInitDragLockProperty(dev, driver_data);
 	LibinputInitHorizScrollProperty(dev, driver_data);
+	LibinputInitScrollPixelDistanceProperty(dev, driver_data, device);
 	LibinputInitPressureCurveProperty(dev, driver_data);
 	LibinputInitTabletAreaRatioProperty(dev, driver_data);
 }