[PATCH libinput 11/11] touchpad: Add support for swipe gestures

[Hans de Goede]

Add support for swipe gestures.

Signed-off-by: Hans de Goede <hdego...@redhat.com>
---
 src/evdev-mt-touchpad-gestures.c | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/src/evdev-mt-touchpad-gestures.c b/src/evdev-mt-touchpad-gestures.c
index e429efe..faf5824 100644
--- a/src/evdev-mt-touchpad-gestures.c
+++ b/src/evdev-mt-touchpad-gestures.c
@@ -25,6 +25,7 @@
 #include <assert.h>
 #include <math.h>
 #include <stdbool.h>
+#include <stdio.h>
 #include <limits.h>
 
 #include "evdev-mt-touchpad.h"
@@ -70,6 +71,13 @@ 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_START,
+                                    tp->gesture.finger_mode,
+                                    0, 0, 0, 0);
+               break;
        }
        tp->gesture.started = true;
 }
@@ -112,6 +120,23 @@ tp_gesture_post_twofinger_scroll(struct tp_dispatch *tp, 
uint64_t time)
                          dx, dy);
 }
 
+static void
+tp_gesture_post_swipe(struct tp_dispatch *tp, uint64_t time)
+{
+       double dx, dy, dx_unaccel, dy_unaccel;
+
+       tp_get_touches_delta(tp, &dx, &dy, true);
+       tp_filter_motion(tp, &dx, &dy, &dx_unaccel, &dy_unaccel, time);
+
+       if (dx != 0.0 || dy != 0.0 || dx_unaccel != 0.0 || dy_unaccel != 0.0) {
+               tp_gesture_start(tp, time);
+               gesture_notify_swipe(&tp->device->base, time,
+                                    LIBINPUT_EVENT_GESTURE_SWIPE_UPDATE,
+                                    tp->gesture.finger_mode,
+                                    dx, dy, dx_unaccel, dy_unaccel);
+       }
+}
+
 void
 tp_gesture_post_events(struct tp_dispatch *tp, uint64_t time)
 {
@@ -136,6 +161,10 @@ 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;
        }
 }
 
@@ -157,6 +186,13 @@ 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_mode,
+                                    0, 0, 0, 0);
+               break;
        }
        tp->gesture.started = false;
 }
-- 
2.1.0

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