From b959614f492f3d8bd54e801e1b0aeaf923770ea1 Mon Sep 17 00:00:00 2001
From: reionwong <reionwong@gmail.com>
Date: Sun, 26 Sep 2021 14:48:44 +0800
Subject: [PATCH] Add touchpad option

---
 CMakeLists.txt                       |   1 +
 src/application.cpp                  |   3 +
 src/images/sidebar/dark/touchpad.svg |   7 ++
 src/qml/SideBar.qml                  |  18 ++++
 src/qml/Touchpad/Main.qml            | 136 +++++++++++++++++++++++++++
 src/resources.qrc                    |   2 +
 src/touchpad.cpp                     |  55 +++++++++++
 src/touchpad.h                       |  38 ++++++++
 8 files changed, 260 insertions(+)
 create mode 100644 src/images/sidebar/dark/touchpad.svg
 create mode 100644 src/qml/Touchpad/Main.qml
 create mode 100644 src/touchpad.cpp
 create mode 100644 src/touchpad.h

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 86f0c70..d1e6a65 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -51,6 +51,7 @@ set(SRCS
     src/datetime/timezonedata.h
     src/datetime/timezonemap.cpp
     src/datetime/timedated_interface.cpp
+    src/touchpad.cpp
 )
 
 set(RESOURCES
diff --git a/src/application.cpp b/src/application.cpp
index 8e14a5a..6a6506e 100644
--- a/src/application.cpp
+++ b/src/application.cpp
@@ -17,6 +17,7 @@
 #include "language.h"
 #include "password.h"
 #include "powermanager.h"
+#include "touchpad.h"
 
 #include "cursor/cursorthememodel.h"
 #include "cursor/mouse.h"
@@ -75,6 +76,8 @@ Application::Application(int &argc, char **argv)
     qmlRegisterType<Mouse>(uri, 1, 0, "Mouse");
     qmlRegisterType<Time>(uri, 1, 0, "Time");
     qmlRegisterType<TimeZoneMap>(uri, 1, 0, "TimeZoneMap");
+    qmlRegisterType<Touchpad>(uri, 1, 0, "Touchpad");
+
     qmlRegisterSingletonType<Password>(uri, 1, 0, "Password", passwordSingleton);
 
 #if QT_VERSION < QT_VERSION_CHECK(5, 14, 0)
diff --git a/src/images/sidebar/dark/touchpad.svg b/src/images/sidebar/dark/touchpad.svg
new file mode 100644
index 0000000..a280109
--- /dev/null
+++ b/src/images/sidebar/dark/touchpad.svg
@@ -0,0 +1,7 @@
+<svg width="16" height="16" version="1.1" xmlns="http://www.w3.org/2000/svg">
+ <g transform="matrix(.03125 0 0 .03125 0 1.6406)" fill="#fff">
+  <path d="m271 317v90h181c33.086 0 60-26.914 60-60v-30z"/>
+  <path d="m512 287v-227c0-33.086-26.914-60-60-60h-392c-33.086 0-60 26.914-60 60v227z"/>
+  <path d="m241 317h-241v30c0 33.086 26.914 60 60 60h181z"/>
+ </g>
+</svg>
diff --git a/src/qml/SideBar.qml b/src/qml/SideBar.qml
index 9854d2e..f441840 100644
--- a/src/qml/SideBar.qml
+++ b/src/qml/SideBar.qml
@@ -148,6 +148,15 @@ Item {
             category: qsTr("System")
         }
 
+        ListElement {
+            title: qsTr("Touchpad")
+            name: "touchpad"
+            page: "qrc:/qml/Touchpad/Main.qml"
+            iconSource: "touchpad.svg"
+            iconColor: "#999999"
+            category: qsTr("System")
+        }
+
 //        ListElement {
 //            title: qsTr("Application")
 //            name: "application"
@@ -377,4 +386,13 @@ Item {
                 removeItem("wlan")
         }
     }
+
+    Touchpad {
+        id: _touchPad
+
+        Component.onCompleted: {
+            if (!_touchPad.available)
+                removeItem("touchpad")
+        }
+    }
 }
diff --git a/src/qml/Touchpad/Main.qml b/src/qml/Touchpad/Main.qml
new file mode 100644
index 0000000..55bee1b
--- /dev/null
+++ b/src/qml/Touchpad/Main.qml
@@ -0,0 +1,136 @@
+/*
+ * Copyright (C) 2021 CutefishOS Team.
+ *
+ * Author:     revenmartin <revenmartin@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import QtQuick 2.12
+import QtQuick.Controls 2.12
+import QtQuick.Layouts 1.12
+import FishUI 1.0 as FishUI
+import Cutefish.Settings 1.0
+import "../"
+
+ItemPage {
+    headerTitle: qsTr("Touchpad")
+
+    Touchpad {
+        id: touchpad
+
+        Component.onCompleted: {
+            accelSpeedSlider.load()
+        }
+    }
+
+    Scrollable {
+        anchors.fill: parent
+        contentHeight: layout.implicitHeight
+
+        ColumnLayout {
+            id: layout
+            anchors.fill: parent
+
+            RoundedItem {
+                GridLayout {
+                    columns: 2
+                    rowSpacing: FishUI.Units.largeSpacing * 2
+
+                    Label {
+                        text: qsTr("Enable")
+                        Layout.fillWidth: true
+                    }
+
+                    Switch {
+                        id: _enableSwitch
+                        Layout.fillHeight: true
+                        Layout.alignment: Qt.AlignRight
+
+                        Component.onCompleted: {
+                            checked = touchpad.enabled
+                        }
+
+                        onCheckedChanged: touchpad.enabled = checked
+                    }
+
+                    Label {
+                        visible: _enableSwitch.checked
+                        text: qsTr("Tap to click")
+                        Layout.fillWidth: true
+                    }
+
+                    Switch {
+                        visible: _enableSwitch.checked
+                        Layout.fillHeight: true
+                        onCheckedChanged: touchpad.tapToClick = checked
+                        Layout.alignment: Qt.AlignRight
+
+                        Component.onCompleted: {
+                            checked = touchpad.tapToClick
+                        }
+                    }
+
+                    Label {
+                        visible: _enableSwitch.checked
+                        text: qsTr("Pointer acceleration")
+                    }
+
+                    Slider {
+                        id: accelSpeedSlider
+
+                        visible: _enableSwitch.checked
+                        Layout.fillWidth: true
+
+                        from: 1
+                        to: 11
+                        stepSize: 1
+                        property int accelSpeedValue: 0 // [-100, 100]
+
+                        function load() {
+                            accelSpeedValue = Math.round(touchpad.pointerAcceleration * 100)
+                            // convert libinput pointer acceleration range [-1, 1] to slider range [1, 11]
+                            value = Math.round(6 + touchpad.pointerAcceleration / 0.2)
+                        }
+
+                        function onAccelSpeedChanged(val) {
+                            // check slider
+                            if (val !== accelSpeedSlider.accelSpeedValue) {
+                                accelSpeedSlider.accelSpeedValue = val
+                                accelSpeedSlider.value = Math.round(6 + (val / 100) / 0.2)
+                            }
+
+                            // check libinput accelspeed
+                            if ((val / 100) != touchpad.pointerAcceleration) {
+                                touchpad.pointerAcceleration = val / 100
+                            }
+                        }
+
+                        onMoved: {
+                            if (touchpad != undefined) {
+                                // convert slider range [1, 11] to accelSpeedValue range [-100, 100]
+                                accelSpeedValue = Math.round(((value - 6) * 0.2) * 100)
+                                onAccelSpeedChanged(accelSpeedValue)
+                            }
+                        }
+                    }
+                }
+            }
+
+            Item {
+                height: FishUI.Units.smallSpacing
+            }
+        }
+    }
+}
diff --git a/src/resources.qrc b/src/resources.qrc
index f0d13d1..73d201f 100644
--- a/src/resources.qrc
+++ b/src/resources.qrc
@@ -116,5 +116,7 @@
         <file>images/dark/world.svg</file>
         <file>images/sidebar/dark/datetime.svg</file>
         <file>qml/Update/Main.qml</file>
+        <file>qml/Touchpad/Main.qml</file>
+        <file>images/sidebar/dark/touchpad.svg</file>
     </qresource>
 </RCC>
diff --git a/src/touchpad.cpp b/src/touchpad.cpp
new file mode 100644
index 0000000..78cf6f6
--- /dev/null
+++ b/src/touchpad.cpp
@@ -0,0 +1,55 @@
+#include "touchpad.h"
+
+Touchpad::Touchpad(QObject *parent)
+    : QObject(parent)
+    , m_iface("com.cutefish.Settings",
+              "/Touchpad",
+              "com.cutefish.Touchpad",
+              QDBusConnection::sessionBus(), this)
+{
+
+}
+
+bool Touchpad::available() const
+{
+    if (!m_iface.isValid())
+        return false;
+
+    return m_iface.property("available").toBool();
+}
+
+bool Touchpad::enabled() const
+{
+    return m_iface.property("enabled").toBool();
+}
+
+void Touchpad::setEnabled(bool enabled)
+{
+    m_iface.asyncCall("setEnabled", enabled);
+    emit enabledChanged();
+}
+
+bool Touchpad::tapToClick() const
+{
+    return m_iface.property("tapToClick").toBool();
+}
+
+void Touchpad::setTapToClick(bool enabled)
+{
+    m_iface.asyncCall("setTapToClick", enabled);
+    emit tapToClickChanged();
+}
+
+qreal Touchpad::pointerAcceleration() const
+{
+    if (!m_iface.isValid())
+        return 0;
+
+    return m_iface.property("pointerAcceleration").toReal();
+}
+
+void Touchpad::setPointerAcceleration(qreal value)
+{
+    m_iface.asyncCall("setPointerAcceleration", value);
+    emit pointerAccelerationChanged();
+}
diff --git a/src/touchpad.h b/src/touchpad.h
new file mode 100644
index 0000000..9c33e9b
--- /dev/null
+++ b/src/touchpad.h
@@ -0,0 +1,38 @@
+#ifndef TOUCHPAD_H
+#define TOUCHPAD_H
+
+#include <QObject>
+#include <QDBusInterface>
+#include <QDBusPendingCall>
+
+class Touchpad : public QObject
+{
+    Q_OBJECT
+    Q_PROPERTY(bool available READ available CONSTANT)
+    Q_PROPERTY(bool enabled READ enabled WRITE setEnabled NOTIFY enabledChanged)
+    Q_PROPERTY(bool tapToClick READ tapToClick WRITE setTapToClick NOTIFY tapToClickChanged)
+    Q_PROPERTY(qreal pointerAcceleration READ pointerAcceleration WRITE setPointerAcceleration NOTIFY pointerAccelerationChanged)
+
+public:
+    explicit Touchpad(QObject *parent = nullptr);
+
+    bool available() const;
+    bool enabled() const;
+    void setEnabled(bool enabled);
+
+    bool tapToClick() const;
+    void setTapToClick(bool enabled);
+
+    qreal pointerAcceleration() const;
+    void setPointerAcceleration(qreal value);
+
+signals:
+    void enabledChanged();
+    void tapToClickChanged();
+    void pointerAccelerationChanged();
+
+private:
+    QDBusInterface m_iface;
+};
+
+#endif // TOUCHPAD_H