From c61952d2ee74c4874ee0dd5df14a41a3fc59adb4 Mon Sep 17 00:00:00 2001
From: PeterOGB <Peter.Onion@btinternet.com>
Date: Wed, 18 Oct 2023 17:02:40 +0100
Subject: [PATCH 1/3] Get mouse scroll values and apply them.

---
 src/core/seat/pointing-device.cpp | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/src/core/seat/pointing-device.cpp b/src/core/seat/pointing-device.cpp
index 6b2dc3257..b8bef9d76 100644
--- a/src/core/seat/pointing-device.cpp
+++ b/src/core/seat/pointing-device.cpp
@@ -14,6 +14,8 @@ void wf::pointing_device_t::config_t::load()
 
     mouse_scroll_speed.load_option("input/mouse_scroll_speed");
     mouse_cursor_speed.load_option("input/mouse_cursor_speed");
+    mouse_scroll_button.load_option("input/mouse_scroll_button");
+    mouse_scroll_method.load_option("input/mouse_scroll_method");
     touchpad_cursor_speed.load_option("input/touchpad_cursor_speed");
     touchpad_scroll_speed.load_option("input/touchpad_scroll_speed");
 
@@ -64,6 +66,23 @@ void wf::pointing_device_t::update_options()
 
     libinput_device_config_left_handed_set(dev, config.left_handed_mode);
 
+    if ((std::string)config.mouse_scroll_method == "default")
+    {
+        libinput_device_config_scroll_set_method(dev,
+                                                 libinput_device_config_scroll_get_default_method(dev));
+    } else if ((std::string)config.mouse_scroll_method == "none")
+    {
+        libinput_device_config_scroll_set_method(dev,
+                                                 LIBINPUT_CONFIG_SCROLL_NO_SCROLL);
+    }  else if ( ((std::string)config.mouse_scroll_method == "on-button-down") &&
+                 ((int)config.mouse_scroll_button != 0))
+    {
+        libinput_device_config_scroll_set_method(dev,
+                                                 LIBINPUT_CONFIG_SCROLL_ON_BUTTON_DOWN);
+        libinput_device_config_scroll_set_button(dev,
+                                                 (int)config.mouse_scroll_button);
+    }
+
     libinput_device_config_middle_emulation_set_enabled(dev,
         config.middle_emulation ?
         LIBINPUT_CONFIG_MIDDLE_EMULATION_ENABLED :

From 3be1c0b4462ff0c7f99cad20b5173104b08a39c1 Mon Sep 17 00:00:00 2001
From: PeterOGB <Peter.Onion@btinternet.com>
Date: Wed, 18 Oct 2023 17:05:21 +0100
Subject: [PATCH 2/3] Add new config items for mouse scroll

---
 src/core/seat/pointing-device.hpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/core/seat/pointing-device.hpp b/src/core/seat/pointing-device.hpp
index e95c22e36..8bafad73b 100644
--- a/src/core/seat/pointing-device.hpp
+++ b/src/core/seat/pointing-device.hpp
@@ -18,6 +18,8 @@ struct pointing_device_t : public input_device_impl_t
         wf::option_wrapper_t<bool> middle_emulation;
         wf::option_wrapper_t<double> mouse_cursor_speed;
         wf::option_wrapper_t<double> mouse_scroll_speed;
+        wf::option_wrapper_t<int> mouse_scroll_button;
+        wf::option_wrapper_t<std::string> mouse_scroll_method;
         wf::option_wrapper_t<std::string> tablet_motion_mode;
         wf::option_wrapper_t<double> touchpad_cursor_speed;
         wf::option_wrapper_t<double> touchpad_scroll_speed;

From ed9980eefd093ee428fe5ddbabef17d2be4f5ec4 Mon Sep 17 00:00:00 2001
From: PeterOGB <Peter.Onion@btinternet.com>
Date: Wed, 18 Oct 2023 17:13:28 +0100
Subject: [PATCH 3/3] Add definitions for mouse scroll method and button

---
 metadata/input.xml | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/metadata/input.xml b/metadata/input.xml
index 5d637725f..684afe2e6 100644
--- a/metadata/input.xml
+++ b/metadata/input.xml
@@ -111,6 +111,29 @@
 				<default>1.0</default>
 				<min>0.0</min>
 			</option>
+			<option name="mouse_scroll_button" type="int">
+				<_short>Mouse scroll button</_short>
+				<_long>Changes the mouse scroll button.</_long>
+				<default>0</default>
+				<min>0</min>
+			</option>
+			<option name="mouse_scroll_method" type="string">
+				<_short>Mouse Scroll method</_short>
+				<_long>Changes the mouse scroll method.</_long>
+				<default>default</default>
+				<desc>
+					<value>default</value>
+					<_name>Default</_name>
+				</desc>
+				<desc>
+					<value>none</value>
+					<_name>None</_name>
+				</desc>
+				<desc>
+					<value>on-button-down</value>
+					<_name>On-button-down</_name>
+				</desc>
+			</option>	
 		</group>
 		<!-- Touchpad -->
 		<group>