From 499af2dd812b6dbac81209ccede0b1b3719703ba Mon Sep 17 00:00:00 2001
From: Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
Date: Wed, 6 Jan 2021 16:38:44 -0300
Subject: [PATCH] workspacesView/workspacesDisplay: Ignore emulated events

When handling all scroll directions, it is imperative to ignore emulated
events. Otherwise we may get the wrong scroll direction, e.g. when natural
scrolling is enabled.

Ignore pointer emulated events in WorkspaceDisplay._onScroll().

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1560>
---
 js/ui/workspacesView.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/js/ui/workspacesView.js b/js/ui/workspacesView.js
index 4a11f0888..1e8faf349 100644
--- a/js/ui/workspacesView.js
+++ b/js/ui/workspacesView.js
@@ -756,6 +756,9 @@ class WorkspacesDisplay extends St.Widget {
         if (!this._canScroll)
             return Clutter.EVENT_PROPAGATE;
 
+        if (event.is_pointer_emulated())
+            return Clutter.EVENT_PROPAGATE;
+
         let workspaceManager = global.workspace_manager;
         let activeWs = workspaceManager.get_active_workspace();
         let ws;