From 868eb99eb07965f34461693d82c68dba503aec46 Mon Sep 17 00:00:00 2001 From: Peter Hutterer Date: Tue, 31 Mar 2020 13:47:04 +1000 Subject: [PATCH] protocol: add the wl_pointer.axis_value120 events These events are for high-resolution wheels. Each logical wheel click represents an axis value120 value of 120, fractions of a wheel click an integer fraction thereof. The new event replaces wl_pointer.axis_discrete for wl_pointer versions 8 and above. Signed-off-by: Peter Hutterer --- protocol/wayland.xml | 39 +++++++++++++++++++++++++++++++++++---- 1 file changed, 35 insertions(+), 4 deletions(-) diff --git a/protocol/wayland.xml b/protocol/wayland.xml index 92e2432a7..4389262ad 100644 --- a/protocol/wayland.xml +++ b/protocol/wayland.xml @@ -1787,7 +1787,7 @@ - + A seat is a group of keyboards, pointer and touch devices. This object is published as a global during start up, or when such a @@ -1920,7 +1920,7 @@ - + The wl_pointer interface represents one or more input devices, such as mice, which control the pointer location and pointer_focus @@ -2220,6 +2220,9 @@ This event carries the axis value of the wl_pointer.axis event in discrete steps (e.g. mouse wheel clicks). + This event is deprecated with wl_pointer version 8 - this event is not + sent to clients supporting version 8 or later. + This event does not occur on its own, it is coupled with a wl_pointer.axis event that represents this axis value on a continuous scale. The protocol guarantees that each axis_discrete @@ -2245,9 +2248,37 @@ + + + + Discrete high-resolution scroll information. + + This event carries high-resolution wheel scroll information, + with each multiple of 120 representing one logical scroll step + (a wheel detent). For example, an axis_value120 of 30 is one quarter of + a logical scroll step in the positive direction, a value120 of + -240 are two logical scroll steps in the negative direction within the + same hardware event. + Clients that rely on discrete scrolling should accumulate the + value120 to multiples of 120 before processing the event. + + The value120 must not be zero. + + This event replaces the wl_pointer.axis_discrete event in clients + supporting wl_pointer version 8 or later. + + Where a wl_pointer.axis_source event occurs in the same + wl_pointer.frame, the axis source applies to this event. + + The order of wl_pointer.axis_value120 and wl_pointer.axis_source is + not guaranteed. + + + + - + The wl_keyboard interface represents one or more keyboards associated with a seat. @@ -2374,7 +2405,7 @@ - + The wl_touch interface represents a touchscreen associated with a seat. -- GitLab