update screens in config window in each show event

app/dockconfigview.cpp

@@ -195,6 +195,8 @@ void DockConfigView::showEvent(QShowEvent *ev)
 
     m_screenSyncTimer.start();
     QTimer::singleShot(400, this, &DockConfigView::syncGeometry);
+
+    emit showSignal();
 }
 
 void DockConfigView::hideEvent(QHideEvent *ev)

app/dockconfigview.h

@@ -53,6 +53,9 @@ public slots:
     Q_INVOKABLE void setSticker(bool blockFocusLost);
     Q_INVOKABLE void syncGeometry();
 
+signals:
+    void showSignal();
+
 protected:
     void showEvent(QShowEvent *ev) override;
     void hideEvent(QHideEvent *ev) override;

shell/contents/configuration/BehaviorConfig.qml

@@ -52,16 +52,35 @@ PlasmaComponents.Page {
             }
 
             RowLayout {
+                id: screenRow
                 Layout.fillWidth: true
                 Layout.leftMargin: units.smallSpacing * 2
                 Layout.rightMargin: units.smallSpacing * 2
                 spacing: 1
 
-                Component.onCompleted: {
+                function updateScreens() {
                     if (dock.screens.length > 1)
-                        visible = true;
+                        screenRow.visible = true;
                     else
-                        visible = false;
+                        screenRow.visible = false;
+
+                    var screens = []
+
+                   // screens.push(i18n("On Primary"));
+
+                    for (var i = 0; i < dock.screens.length; i++) {
+                        screens.push(dock.screens[i].name)
+                    }
+
+                    screenCmb.model = screens;
+
+                    screenCmb.currentIndex = screenCmb.find(dock.currentScreen);
+                    console.log(dock.currentScreen);
+                }
+
+                Connections{
+                    target: dockConfig
+                    onShowSignal: screenRow.updateScreens();
                 }
 
                 PlasmaComponents.Label {
@@ -72,24 +91,11 @@ PlasmaComponents.Page {
                 PlasmaComponents.ComboBox {
                     id: screenCmb
                     Layout.fillWidth: true
-                    Component.onCompleted: {
-                        var screens = []
-
-                       // screens.push(i18n("On Primary"));
-
-                        for (var i = 0; i < dock.screens.length; i++) {
-                            screens.push(dock.screens[i].name)
-                        }
-
-                        model = screens;
-
-                        currentIndex = find(dock.currentScreen);
-                        console.log(dock.currentScreen);
-                    }
+                    Component.onCompleted: screenRow.updateScreens();
 
-                    onCurrentIndexChanged: {
-                        console.log("current index changed!!! :"+ currentIndex);
+                    onActivated: {
                         if (currentIndex !== find(dock.currentScreen)) {
+                            console.log("current index changed!!! :"+ currentIndex);
                             console.log("screen must be changed...");
                             dock.setCurrentScreen(currentText);
                         }