evdev: Update axis notifications to follow protocol

Signed-off-by: Jonas Ådahl <jadahl@gmail.com>

diff --git a/src/evdev.c b/src/evdev.c
index cc5af91..1c65b7b 100644 (file)
--- a/src/evdev.c
+++ b/src/evdev.c
@@ -30,6 +30,8 @@
 #include "compositor.h"
 #include "evdev.h"
 
+#define DEFAULT_AXIS_STEP_DISTANCE wl_fixed_from_int(10)
+
 void
 evdev_led_update(struct evdev_device *device, enum weston_led leds)
 {
@@ -161,17 +163,35 @@ evdev_process_relative(struct evdev_device *device,
                device->pending_events |= EVDEV_RELATIVE_MOTION;
                break;
        case REL_WHEEL:
-               notify_axis(device->seat,
-                             time,
-                             WL_POINTER_AXIS_VERTICAL_SCROLL,
-                             wl_fixed_from_int(e->value));
+               switch (e->value) {
+               case -1:
+                       /* Scroll down */
+               case 1:
+                       /* Scroll up */
+                       notify_axis(device->seat,
+                                   time,
+                                   WL_POINTER_AXIS_VERTICAL_SCROLL,
+                                   -1 * e->value * DEFAULT_AXIS_STEP_DISTANCE);
+                       break;
+               default:
+                       break;
+               }
                break;
        case REL_HWHEEL:
-               notify_axis(device->seat,
-                             time,
-                             WL_POINTER_AXIS_HORIZONTAL_SCROLL,
-                             wl_fixed_from_int(e->value));
-               break;
+               switch (e->value) {
+               case -1:
+                       /* Scroll left */
+               case 1:
+                       /* Scroll right */
+                       notify_axis(device->seat,
+                                   time,
+                                   WL_POINTER_AXIS_HORIZONTAL_SCROLL,
+                                   e->value * DEFAULT_AXIS_STEP_DISTANCE);
+                       break;
+               default:
+                       break;
+
+               }
        }
 }