Make KRunner KCM open in System Settings

BUG: 421427
FIXED-IN: 5.19.1

CMakeLists.txt

@@ -28,7 +28,7 @@ include(KDEClangFormat)
 find_package(KF5 ${KF5_MIN_VERSION} REQUIRED COMPONENTS
                     Plasma DocTools Runner Notifications NotifyConfig Su NewStuff Wallet
                     IdleTime Declarative I18n KCMUtils TextWidgets KDELibs4Support Crash GlobalAccel
-                    DBusAddons Wayland CoreAddons People ActivitiesStats)
+                    DBusAddons Wayland CoreAddons People ActivitiesStats KIO)
 find_package(KDED CONFIG REQUIRED)
 
 find_package(KF5NetworkManagerQt ${KF5_MIN_VERSION})

krunner/CMakeLists.txt

@@ -16,6 +16,7 @@ add_executable(krunner ${krunner_SRCS})
 target_link_libraries(krunner
     Qt5::Quick
     Qt5::Widgets
+    KF5::KIOWidgets
     KF5::Declarative
     KF5::I18n
     KF5::PlasmaQuick

krunner/view.cpp

@@ -33,6 +33,8 @@
 #include <KWindowEffects>
 #include <KLocalizedString>
 #include <KCrash>
+#include <KService>
+#include <KIO/CommandLauncherJob>
 
 #include <kdeclarative/qmlobject.h>
 
@@ -332,7 +334,18 @@ void View::switchUser()
 
 void View::displayConfiguration()
 {
-    QProcess::startDetached(QStringLiteral("kcmshell5"), QStringList() << QStringLiteral("plasmasearch"));
+    const QString systemSettings = QStringLiteral("systemsettings");
+    const QStringList kcmToOpen = QStringList(QStringLiteral("kcm_plasmasearch"));
+    KIO::CommandLauncherJob *job = nullptr;
+
+    if (KService::serviceByDesktopName(systemSettings)) {
+        job = new KIO::CommandLauncherJob(QStringLiteral("systemsettings5"), kcmToOpen);
+        job->setDesktopName(systemSettings);
+    } else {
+        job = new KIO::CommandLauncherJob(QStringLiteral("kcmshell5"), kcmToOpen);
+    }
+
+    job->start();
 }
 
 bool View::canConfigure() const