Fix context menu actions for KCMs

Needs c815c7a9bc

Currently the logic is very fragile and depends on the data being an url.
However the data of the match is an implementation detail and is in case of the KCM matches
a KPluginMetaData instance.

To avoid this issue the first url of the QueryMatch::urls() return value is checked.
This data is intended for mime-type/scheme related operations.

In the future we need an extra url for systemsettings & should consistently use the
urls of the query match. I will work on this before continuing to port the
plasma KCMs from KServiceTypeTrader.

BUG: 442522

applets/kicker/plugin/runnermatchesmodel.cpp

@@ -86,7 +86,11 @@ QVariant RunnerMatchesModel::data(const QModelIndex &index, int role) const
             return actionList;
         }
 
-        const QUrl dataUrl(match.data().toUrl());
+        QUrl dataUrl(match.data().toUrl());
+        if (dataUrl.isEmpty() && !match.urls().isEmpty()) {
+            // needed for systemsettigs runner
+            dataUrl = match.urls().constFirst();
+        }
         if (dataUrl.scheme() != QLatin1String("applications")) {
             return actionList;
         }
@@ -162,7 +166,11 @@ bool RunnerMatchesModel::trigger(int row, const QString &actionId, const QVarian
 
     QObject *appletInterface = static_cast<RunnerModel *>(parent())->appletInterface();
 
-    const KService::Ptr service = KService::serviceByStorageId(match.data().toUrl().toString(QUrl::RemoveScheme));
+    KService::Ptr service = KService::serviceByStorageId(match.data().toUrl().toString(QUrl::RemoveScheme));
+    if (!service && !match.urls().isEmpty()) {
+        // needed for systemsettigs runner
+        service = KService::serviceByStorageId(match.urls().constFirst().toString(QUrl::RemoveScheme));
+    }
 
     if (Kicker::handleAddLauncherAction(actionId, appletInterface, service)) {
         return false; // We don't want to close Kicker, BUG: 390585