From 2c36652be2d8ea6b68a3bb82f11fe96208444f0e Mon Sep 17 00:00:00 2001
From: apricotbucket28 <71973804+apricotbucket28@users.noreply.github.com>
Date: Tue, 19 Mar 2024 16:25:10 -0300
Subject: [PATCH] wayland: fix handling of non-discrete scroll events (#9548)

https://github.com/zed-industries/zed/pull/9103 broke touchpad scrolling
on Wayland
This PR correctly filters the `Axis` to handle all non-discrete scroll
events (see
https://wayland.app/protocols/wayland#wl_pointer:enum:axis_source)

Should fix https://github.com/zed-industries/zed/issues/9525

Release Notes:

- N/A
---
 crates/gpui/src/platform/linux/wayland/client.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/crates/gpui/src/platform/linux/wayland/client.rs b/crates/gpui/src/platform/linux/wayland/client.rs
index 7bb3ebb0f8..c2a470a48d 100644
--- a/crates/gpui/src/platform/linux/wayland/client.rs
+++ b/crates/gpui/src/platform/linux/wayland/client.rs
@@ -966,8 +966,9 @@ impl Dispatch<wl_pointer::WlPointer, ()> for WaylandClientState {
                 value,
                 ..
             } => {
+                // We handle discrete scroll events with `AxisValue120`.
                 if wl_pointer.version() >= wl_pointer::EVT_AXIS_VALUE120_SINCE
-                    && state.axis_source != AxisSource::Continuous
+                    && state.axis_source == AxisSource::Wheel
                 {
                     return;
                 }