From ac4f9bdc3c9a788e50b38c6b5e645f34cc2d127e Mon Sep 17 00:00:00 2001
From: Fushan Wen <qydwhotmail@gmail.com>
Date: Mon, 13 Jun 2022 23:59:04 +0800
Subject: [PATCH] kcm: provide restart button in InlineMessage after Global
 scale is changed on X11

This slightly improves the usability.
---
 kcm/CMakeLists.txt               |  1 +
 kcm/kcm.cpp                      | 12 ++++++++++++
 kcm/kcm.h                        |  1 +
 kcm/package/contents/ui/main.qml |  7 +++++++
 4 files changed, 21 insertions(+)

diff --git a/kcm/CMakeLists.txt b/kcm/CMakeLists.txt
index 616b57e..ebf255e 100644
--- a/kcm/CMakeLists.txt
+++ b/kcm/CMakeLists.txt
@@ -26,6 +26,7 @@ add_library(kcm_kscreen MODULE ${kcm_kscreen_SRCS})
 kconfig_add_kcfg_files(kcm_kscreen GENERATE_MOC globalscalesettings.kcfgc)
 
 target_link_libraries(kcm_kscreen
+    Qt::DBus
     Qt::Sensors
     KF5::ConfigGui
     KF5::CoreAddons
diff --git a/kcm/kcm.cpp b/kcm/kcm.cpp
index 26762cd..0a41a34 100644
--- a/kcm/kcm.cpp
+++ b/kcm/kcm.cpp
@@ -25,6 +25,9 @@
 #include <KPluginFactory>
 #include <KSharedConfig>
 
+#include <QDBusConnection>
+#include <QDBusMessage>
+#include <QDBusPendingReply>
 #include <QTimer>
 
 K_PLUGIN_FACTORY_WITH_JSON(KCMDisplayConfigurationFactory, "kcm_kscreen.json", registerPlugin<KCMKScreen>();)
@@ -104,6 +107,15 @@ void KCMKScreen::revertSettings()
     }
 }
 
+void KCMKScreen::requestReboot()
+{
+    QDBusMessage msg = QDBusMessage::createMethodCall(QStringLiteral("org.kde.LogoutPrompt"),
+                                                      QStringLiteral("/LogoutPrompt"),
+                                                      QStringLiteral("org.kde.LogoutPrompt"),
+                                                      QStringLiteral("promptReboot"));
+    QDBusConnection::sessionBus().asyncCall(msg);
+}
+
 void KCMKScreen::setStopUpdatesFromBackend(bool value)
 {
     m_stopUpdatesFromBackend = value;
diff --git a/kcm/kcm.h b/kcm/kcm.h
index 9bc31df..ab21bfc 100644
--- a/kcm/kcm.h
+++ b/kcm/kcm.h
@@ -69,6 +69,7 @@ public:
     Q_INVOKABLE void forceSave();
     void doSave(bool force);
     Q_INVOKABLE void revertSettings();
+    Q_INVOKABLE void requestReboot();
 
     Q_INVOKABLE void setStopUpdatesFromBackend(bool value);
     Q_INVOKABLE void updateFromBackend();
diff --git a/kcm/package/contents/ui/main.qml b/kcm/package/contents/ui/main.qml
index 0d779aa..507d97a 100644
--- a/kcm/package/contents/ui/main.qml
+++ b/kcm/package/contents/ui/main.qml
@@ -68,6 +68,13 @@ KCM.SimpleKCM {
             text: i18n("New global scale applied. Change will come into effect after restart.")
             visible: false
             showCloseButton: true
+            actions: [
+                Kirigami.Action {
+                    icon.name: "system-reboot"
+                    text: i18n("Restart")
+                    onTriggered: kcm.requestReboot();
+                }
+            ]
         }
         Kirigami.InlineMessage {
             id: connectMsg
-- 
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