KRunner: Disable help button when runner is disabled

BUG: 451509

krunner/view.cpp

@@ -58,6 +58,8 @@ View::View(QWindow *)
         Q_UNUSED(names);
         if (group.name() == QLatin1String("General")) {
             loadConfig();
+        } else if (group.name() == QLatin1String("Plugins")) {
+            Q_EMIT helpEnabledChanged();
         }
     });
 

krunner/view.h

@@ -8,6 +8,7 @@
 
 #include <KConfigGroup>
 #include <KConfigWatcher>
+#include <KPluginMetaData>
 #include <KSharedConfig>
 #include <QPointer>
 #include <QQuickView>
@@ -42,6 +43,7 @@ class View : public PlasmaQuick::Dialog
     Q_PROPERTY(QStringList history READ history NOTIFY historyChanged)
     // TODO KF6 This is kept for compatibility with third party themes which override the RunCommand.qml file
     Q_PROPERTY(Plasma::RunnerManager *runnerManager WRITE setRunnerManager)
+    Q_PROPERTY(bool helpEnabled READ helpEnabled NOTIFY helpEnabledChanged)
 
 public:
     explicit View(QWindow *parent = nullptr);
@@ -69,8 +71,16 @@ public:
         m_manager = manager;
     }
 
+    bool helpEnabled()
+    {
+        const static auto metaData = KPluginMetaData(QStringLiteral("kf5/krunner/helprunner"));
+        const KConfigGroup grp = KSharedConfig::openConfig()->group("Plugins");
+        return metaData.isEnabled(grp);
+    }
+
 Q_SIGNALS:
     void pinnedChanged();
+    void helpEnabledChanged();
 
 protected:
     bool event(QEvent *event) override;

lookandfeel/contents/runcommand/RunCommand.qml

@@ -221,6 +221,7 @@ ColumnLayout {
             }
         }
         PlasmaComponents3.ToolButton {
+            visible: runnerWindow.helpEnabled
             checkable: true
             checked: root.query.startsWith("?")
             // Reset if out quers starts with "?", otherwise set it to "?"