quicksettings: Make mobile data quick setting use NM API directly

CMakeLists.txt

@@ -47,6 +47,7 @@ find_package(KF5 ${KF5_MIN_VERSION} REQUIRED COMPONENTS
     Notifications
     Wayland
     ModemManagerQt
+    NetworkManagerQt
 )
 find_package(KWinDBusInterface)
 set_package_properties(KWinDBusInterface PROPERTIES DESCRIPTION "KWin DBus interface"

components/mmplugin/CMakeLists.txt

@@ -10,6 +10,7 @@ target_sources(ppc-mmqmlplugin PRIVATE
 target_link_libraries(ppc-mmqmlplugin
     Qt5::Qml
     KF5::ModemManagerQt
+    KF5::NetworkManagerQt
 )
 
 set_property(TARGET ppc-mmqmlplugin PROPERTY LIBRARY_OUTPUT_DIRECTORY ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/org/kde/plasma/mm)

components/mmplugin/signalindicator.cpp

 // SPDX-FileCopyrightText: 2021 Tobias Fella <fella@posteo.de>
+// SPDX-FileCopyrightText: 2022 Devin Lin <devin@kde.org>
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+#include <NetworkManagerQt/Manager>
+
 #include "signalindicator.h"
 
 SignalIndicator::SignalIndicator()
 {
+    connect(NetworkManager::notifier(), &NetworkManager::Notifier::wwanEnabledChanged, this, [this](bool) {
+        Q_EMIT wwanEnabledChanged();
+    });
+
     connect(ModemManager::notifier(), &ModemManager::Notifier::modemAdded, this, &SignalIndicator::updateModem);
     connect(ModemManager::notifier(), &ModemManager::Notifier::modemRemoved, this, &SignalIndicator::updateModem);
     updateModem();
@@ -36,6 +43,16 @@ bool SignalIndicator::available() const
     return !ModemManager::modemDevices().isEmpty();
 }
 
+bool SignalIndicator::wwanEnabled() const
+{
+    return NetworkManager::isWwanEnabled();
+}
+
+void SignalIndicator::setWwanEnabled(bool wwanEnabled)
+{
+    NetworkManager::setWwanEnabled(wwanEnabled);
+}
+
 void SignalIndicator::updateModem()
 {
     if (!available()) {

components/mmplugin/signalindicator.h

 // SPDX-FileCopyrightText: 2021 Tobias Fella <fella@posteo.de>
+// SPDX-FileCopyrightText: 2022 Devin Lin <devin@kde.org>
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 
 #include <ModemManagerQt/Manager>
 #include <ModemManagerQt/modem3gpp.h>
+
 #include <QObject>
 
+// We make the assumption that there is only one modem.
 class SignalIndicator : public QObject
 {
     Q_OBJECT
@@ -15,6 +18,7 @@ class SignalIndicator : public QObject
     Q_PROPERTY(QString name READ name NOTIFY nameChanged)
     Q_PROPERTY(bool simLocked READ simLocked NOTIFY simLockedChanged)
     Q_PROPERTY(bool available READ available NOTIFY availableChanged)
+    Q_PROPERTY(bool wwanEnabled READ wwanEnabled WRITE setWwanEnabled NOTIFY wwanEnabledChanged)
 
 public:
     SignalIndicator();
@@ -23,12 +27,16 @@ public:
     QString name() const;
     bool simLocked() const;
     bool available() const;
+    bool wwanEnabled() const;
+
+    void setWwanEnabled(bool wwanEnabled);
 
 Q_SIGNALS:
     void strengthChanged();
     void nameChanged();
     void simLockedChanged();
     void availableChanged();
+    void wwanEnabledChanged();
 
 private:
     ModemManager::Modem::Ptr m_modem;

components/mobileshell/qml/actiondrawer/quicksettings/SettingsModel.qml

@@ -15,6 +15,7 @@ import org.kde.bluezqt 1.0 as BluezQt
 import org.kde.plasma.core 2.0 as PlasmaCore
 import org.kde.plasma.components 3.0 as PC3
 import org.kde.plasma.networkmanagement 0.2 as PlasmaNM
+import org.kde.plasma.mm 1.0 as PlasmaMM
 import org.kde.plasma.private.mobileshell 1.0 as MobileShell
 
 MobileShell.QuickSettingsModel {
@@ -67,9 +68,9 @@ MobileShell.QuickSettingsModel {
         text: i18n("Mobile Data")
         icon: "network-modem"
         settingsCommand: "plasma-open-settings kcm_mobile_broadband"
-        enabled: enabledConnections.wwanEnabled
+        enabled: PlasmaMM.SignalIndicator.wwanEnabled
         function toggle() {
-            nmHandler.enableWwan(!enabledConnections.wwanEnabled)
+            PlasmaMM.SignalIndicator.wwanEnabled = !PlasmaMM.SignalIndicator.wwanEnabled
         }
     }
     MobileShell.QuickSetting {