From cffe62015c2d4c168f11fb570d2f671ed0a99534 Mon Sep 17 00:00:00 2001
From: Victor Kareh <vkareh@redhat.com>
Date: Fri, 2 Aug 2019 14:50:35 -0400
Subject: mouse: Add support for Acceleration Profiles

Currently libinput supports Adaptive and Flat acceleration profiles. We
can use these to change mouse behavior. Synaptic touchpads are not
supported through libinput, so I have not included a UI change for this
(even though it's technically supported in gsettings).

The Default acceleration profile reads the value from the libinput
defaults and sets them as the current profile. Usually ends up being
Adaptive.
---
 capplets/mouse/mate-mouse-properties.c  | 18 ++++++++++++++++++
 capplets/mouse/mate-mouse-properties.ui | 31 +++++++++++++++++++++++++++++++
 2 files changed, 49 insertions(+)

(limited to 'capplets')

diff --git a/capplets/mouse/mate-mouse-properties.c b/capplets/mouse/mate-mouse-properties.c
index 2c2292a4..a3c06e60 100644
--- a/capplets/mouse/mate-mouse-properties.c
+++ b/capplets/mouse/mate-mouse-properties.c
@@ -49,6 +49,12 @@ enum
 	DOUBLE_CLICK_TEST_ON
 };
 
+typedef enum {
+	ACCEL_PROFILE_DEFAULT,
+	ACCEL_PROFILE_ADAPTIVE,
+	ACCEL_PROFILE_FLAT
+} AccelProfile;
+
 #define MOUSE_SCHEMA "org.mate.peripherals-mouse"
 #define INTERFACE_SCHEMA "org.mate.interface"
 #define DOUBLE_CLICK_KEY "double-click"
@@ -217,6 +223,13 @@ synaptics_check_capabilities (GtkBuilder *dialog)
 	XFreeDeviceList (devicelist);
 }
 
+static void
+accel_profile_combobox_changed_callback (GtkWidget *combobox, void *data)
+{
+	AccelProfile value = gtk_combo_box_get_active (GTK_COMBO_BOX (combobox));
+	g_settings_set_enum (mouse_settings, (const gchar *) "accel-profile", value);
+}
+
 static void
 comboxbox_changed (GtkWidget *combobox, GtkBuilder *dialog, const char *key)
 {
@@ -293,6 +306,11 @@ setup_dialog (GtkBuilder *dialog)
 		gtk_range_get_adjustment (GTK_RANGE (WID ("sensitivity_scale"))), "value",
 		G_SETTINGS_BIND_DEFAULT);
 
+	g_signal_connect (WID ("mouse_accel_profile"), "changed",
+			  G_CALLBACK (accel_profile_combobox_changed_callback), NULL);
+	gtk_combo_box_set_active (GTK_COMBO_BOX (WID ("mouse_accel_profile")),
+				  g_settings_get_enum (mouse_settings, "accel-profile"));
+
 	/* DnD threshold */
 	g_settings_bind (mouse_settings, "drag-threshold",
 		gtk_range_get_adjustment (GTK_RANGE (WID ("drag_threshold_scale"))), "value",
diff --git a/capplets/mouse/mate-mouse-properties.ui b/capplets/mouse/mate-mouse-properties.ui
index a2990fa7..9c353240 100644
--- a/capplets/mouse/mate-mouse-properties.ui
+++ b/capplets/mouse/mate-mouse-properties.ui
@@ -512,6 +512,37 @@
                                 <property name="top_attach">1</property>
                               </packing>
                             </child>
+                            <child>
+                              <object class="GtkLabel" id="mouse_accel_profile_label">
+                                <property name="visible">True</property>
+                                <property name="can_focus">False</property>
+                                <property name="label" translatable="yes">Acceleration _Profile:</property>
+                                <property name="use_underline">True</property>
+                                <property name="justify">center</property>
+                                <property name="mnemonic_widget">mouse_accel_profile</property>
+                                <property name="xalign">0</property>
+                              </object>
+                              <packing>
+                                <property name="left_attach">0</property>
+                                <property name="top_attach">2</property>
+                              </packing>
+                            </child>
+                            <child>
+                              <object class="GtkComboBoxText" id="mouse_accel_profile">
+                                <property name="visible">True</property>
+                                <property name="can_focus">False</property>
+                                <property name="halign">start</property>
+                                <items>
+                                  <item translatable="yes" id="default">Default</item>
+                                  <item translatable="yes" id="adaptive">Adaptive</item>
+                                  <item translatable="yes" id="flat">Flat</item>
+                                </items>
+                              </object>
+                              <packing>
+                                <property name="left_attach">1</property>
+                                <property name="top_attach">2</property>
+                              </packing>
+                            </child>
                           </object>
                         </child>
                       </object>
-- 
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