Pointer axis events are in the same coordinate space as motion events.
Signed-off-by: Jonas Ådahl <[email protected]>
---
protocol/wayland.xml | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/protocol/wayland.xml b/protocol/wayland.xml
index 5e56cb8..31243a5 100644
--- a/protocol/wayland.xml
+++ b/protocol/wayland.xml
@@ -864,6 +864,21 @@
<event name="axis">
<description summary="axis event">
Scroll and other axis notifications.
+
+ For scroll events (vertical and horizontal scroll axes), the
+ value parameter is the length of a vector along the specified
+ axis in a coordinate space identical to those of motion events,
+ representing a relative movement along the specified axis.
+
+ For devices that support movements non-parallel to axes multiple
+ axis events will be emitted.
+
+ When applicable, for example for touch pads, the server can
+ choose to emit scroll events where the motion vector is
+ equivalent to a motion event vector.
+
+ When applicable, clients can transform its view relative to the
+ scroll distance.
</description>
<arg name="time" type="uint"/>
--
1.7.9.5
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