File indexing completed on 2024-06-16 05:09:02

 /*
     SPDX-FileCopyrightText: 2017 Roman Gilg <subdiff@gmail.com>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "touchpadconfig.h"
 
 #include "../logging.h"
 #include "touchpadbackend.h"
 #include <config-build-options.h>
 
 #include <KLocalizedContext>
 #include <KLocalizedString>
 #include <KPluginFactory>
 #include <KWindowSystem>
 
 #include <QQmlContext>
 #include <QQmlEngine>
 #include <QQmlProperty>
 #include <QQuickItem>
 #include <QVBoxLayout>
 
 K_PLUGIN_CLASS_WITH_JSON(TouchpadConfig, "kcm_touchpad.json")
 
 extern "C" {
 Q_DECL_EXPORT void kcminit()
 {
 #if BUILD_KCM_TOUCHPAD_X11
     if (KWindowSystem::isPlatformX11()) {
         TouchpadConfig::kcmInit();
     }
 #endif
 }
 }
 
 TouchpadConfig::TouchpadConfig(QObject *parent, const KPluginMetaData &data)
     : KCModule(parent, data)
 {
     m_backend = TouchpadBackend::implementation();
 
     m_initError = !m_backend->errorString().isNull();
 
     m_view = new QQuickWidget(widget());
 
     QVBoxLayout *layout = new QVBoxLayout(widget());
 
     layout->addWidget(m_view);
     widget()->setLayout(layout);
 
     m_view->setResizeMode(QQuickWidget::SizeRootObjectToView);
     m_view->setClearColor(Qt::transparent);
     m_view->setAttribute(Qt::WA_AlwaysStackOnTop);
 
     m_view->rootContext()->setContextProperty("backend", m_backend);
     m_view->rootContext()->setContextProperty("deviceModel", QVariant::fromValue(m_backend->getDevices().toList()));
 
     QObject::connect(m_view, &QQuickWidget::statusChanged, [&](QQuickWidget::Status status) {
         if (status == QQuickWidget::Ready) {
             connect(m_view->rootObject(), SIGNAL(changeSignal()), this, SLOT(onChange()));
         }
     });
 
     qmlRegisterSingletonInstance("org.kde.touchpad.kcm", 1, 0, "TouchpadConfig", this);
 
     m_view->engine()->rootContext()->setContextObject(new KLocalizedContext(m_view->engine()));
     m_view->setSource(QUrl("qrc:/libinput/touchpad.qml"));
     m_view->resize(QSize(500, 600));
 
     if (m_initError) {
         Q_EMIT showMessage(m_backend->errorString());
     } else {
         connect(m_backend, &TouchpadBackend::touchpadAdded, this, &TouchpadConfig::onTouchpadAdded);
         connect(m_backend, &TouchpadBackend::touchpadRemoved, this, &TouchpadConfig::onTouchpadRemoved);
     }
 
     setButtons(KCModule::Default | KCModule::Apply);
 }
 
 void TouchpadConfig::kcmInit()
 {
 #if BUILD_KCM_TOUCHPAD_X11
     TouchpadBackend *backend = TouchpadBackend::implementation();
     if (backend->getMode() == TouchpadInputBackendMode::XLibinput) {
         backend->getConfig();
         backend->applyConfig();
     }
 #endif
 }
 
 void TouchpadConfig::load()
 {
     // in case of critical init error in backend, don't try
     if (m_initError) {
         return;
     }
 
     if (!m_backend->getConfig()) {
         Q_EMIT showMessage(i18n("Error while loading values. See logs for more information. Please restart this configuration module."));
     } else {
         if (!m_backend->touchpadCount()) {
             Q_EMIT showMessage(i18n("No touchpad found. Connect touchpad now."));
         }
     }
     QMetaObject::invokeMethod(m_view->rootObject(), "syncValuesFromBackend");
 }
 
 void TouchpadConfig::save()
 {
     if (!m_backend->applyConfig()) {
         Q_EMIT showMessage(i18n("Not able to save all changes. See logs for more information. Please restart this configuration module and try again."));
     } else {
         Q_EMIT showMessage(QString());
     }
 
     // load newly written values
     load();
     // in case of error, config still in changed state
     setNeedsSave(m_backend->isChangedConfig());
 }
 
 void TouchpadConfig::defaults()
 {
     // in case of critical init error in backend, don't try
     if (m_initError) {
         return;
     }
 
     if (!m_backend->getDefaultConfig()) {
         Q_EMIT showMessage(i18n("Error while loading default values. Failed to set some options to their default values."));
     }
     QMetaObject::invokeMethod(m_view->rootObject(), "syncValuesFromBackend");
     setNeedsSave(m_backend->isChangedConfig());
 }
 
 void TouchpadConfig::onChange()
 {
     if (!m_backend->touchpadCount()) {
         return;
     }
     hideErrorMessage();
     setNeedsSave(m_backend->isChangedConfig());
 }
 
 void TouchpadConfig::onTouchpadAdded(bool success)
 {
     QQuickItem *rootObj = m_view->rootObject();
 
     if (!success) {
         Q_EMIT showMessage(i18n("Error while adding newly connected device. Please reconnect it and restart this configuration module."));
     }
 
     int activeIndex;
     if (m_backend->touchpadCount() == 1) {
         // if no touchpad was connected previously, show the new device and hide the no-device-message
         activeIndex = 0;
         hideErrorMessage();
     } else {
         activeIndex = QQmlProperty::read(rootObj, "deviceIndex").toInt();
     }
     m_view->rootContext()->setContextProperty("deviceModel", QVariant::fromValue(m_backend->getDevices()));
     QMetaObject::invokeMethod(rootObj, "resetModel", Q_ARG(QVariant, activeIndex));
     QMetaObject::invokeMethod(rootObj, "syncValuesFromBackend");
 }
 
 void TouchpadConfig::onTouchpadRemoved(int index)
 {
     QQuickItem *rootObj = m_view->rootObject();
 
     int activeIndex = QQmlProperty::read(rootObj, "deviceIndex").toInt();
     if (activeIndex == index) {
         if (m_backend->touchpadCount()) {
             Q_EMIT showMessage(i18n("Touchpad disconnected. Closed its setting dialog."), 0 /*Kirigami.MessageType.Information*/);
         } else {
             Q_EMIT showMessage(i18n("Touchpad disconnected. No other touchpads found."), 0 /*Kirigami.MessageType.Information*/);
         }
         activeIndex = 0;
     } else {
         if (index < activeIndex) {
             activeIndex--;
         }
     }
     m_view->rootContext()->setContextProperty("deviceModel", QVariant::fromValue(m_backend->getDevices()));
     QMetaObject::invokeMethod(m_view->rootObject(), "resetModel", Q_ARG(QVariant, activeIndex));
     QMetaObject::invokeMethod(rootObj, "syncValuesFromBackend");
 
     setNeedsSave(m_backend->isChangedConfig());
 }
 
 void TouchpadConfig::hideErrorMessage()
 {
     Q_EMIT showMessage(QString());
 }
 
 #include "touchpadconfig.moc"