From 29a5423abd4bc6cb7bb800924a27b5d90951e408 Mon Sep 17 00:00:00 2001
From: Jason Gerecke <killertofu@gmail.com>
Date: Tue, 7 Nov 2017 11:09:44 -0800
Subject: [PATCH] xwayland: Support for BTN_STYLUS3 kernel events

BTN_STYLUS3 has been introduced by the Linux 4.15 kernel to report the
status of the third button present on Wacom's new "Pro Pen 3D" stylus.
Treat this button like xf86-input-wacom and send a button 8 event
("navigate back") when received from Wayland.

Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
---
 hw/xwayland/xwayland-input.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hw/xwayland/xwayland-input.c b/hw/xwayland/xwayland-input.c
index c613690cd..74a2579f7 100644
--- a/hw/xwayland/xwayland-input.c
+++ b/hw/xwayland/xwayland-input.c
@@ -1698,6 +1698,7 @@ tablet_tool_button_state(void *data, struct zwp_tablet_tool_v2 *tool,
 
         case 0x113: /* BTN_SIDE    */
         case 0x116: /* BTN_BACK    */
+        case 0x149: /* BTN_STYLUS3 */
             xbtn = 8;
             break;