QmlDesigner: Add missing callback for adding signals

If a signal is added we have to add/update the property.

Task-number: QDS-14449
Change-Id: I8c4071a3fbba7f880d81dd697b15a2649d8acb10
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@qt.io>

src/plugins/qmldesigner/components/connectioneditor/connectionview.cpp

@@ -258,6 +258,13 @@ void ConnectionView::bindingPropertiesChanged(const QList<BindingProperty> &prop
     }
 }
 
+void ConnectionView::signalDeclarationPropertiesChanged(
+    const QVector<SignalDeclarationProperty> &propertyList, PropertyChangeFlags /* propertyChange */)
+{
+    for (const SignalDeclarationProperty &property : propertyList)
+        d->dynamicPropertiesModel.updateItem(property);
+}
+
 void ConnectionView::signalHandlerPropertiesChanged(const QVector<SignalHandlerProperty> &propertyList,
                                                     AbstractView::PropertyChangeFlags /*propertyChange*/)
 {

src/plugins/qmldesigner/components/connectioneditor/connectionview.h

@@ -50,6 +50,9 @@ public:
     void bindingPropertiesChanged(const QList<BindingProperty>& propertyList, PropertyChangeFlags propertyChange) override;
     void signalHandlerPropertiesChanged(const QVector<SignalHandlerProperty>& propertyList, PropertyChangeFlags propertyChange) override;
 
+    void signalDeclarationPropertiesChanged(const QVector<SignalDeclarationProperty> &propertyList,
+                                            PropertyChangeFlags propertyChange) override;
+
     void selectedNodesChanged(const QList<ModelNode> &selectedNodeList,
                               const QList<ModelNode> &lastSelectedNodeList) override;
 

src/plugins/qmldesigner/components/connectioneditor/dynamicpropertiesmodel.cpp

@@ -148,7 +148,7 @@ void DynamicPropertiesModel::setCurrent(int internalId, PropertyNameView name)
 
 void DynamicPropertiesModel::updateItem(const AbstractProperty &property)
 {
-    if (!property.isDynamic())
+    if (!property.isDynamic() && !property.isSignalDeclarationProperty())
         return;
 
     if (auto *item = itemForProperty(property)) {

src/plugins/qmldesigner/components/propertyeditor/propertyeditorview.cpp

@@ -1092,6 +1092,13 @@ void PropertyEditorView::auxiliaryDataChanged(const ModelNode &node,
         m_qmlBackEndForCurrentType->contextObject()->setInsightCategories(data.toStringList());
 }
 
+void PropertyEditorView::signalDeclarationPropertiesChanged(
+    const QVector<SignalDeclarationProperty> &propertyList, PropertyChangeFlags /* propertyChange */)
+{
+    for (const SignalDeclarationProperty &property : propertyList)
+        m_dynamicPropertiesModel->updateItem(property);
+}
+
 void PropertyEditorView::instanceInformationsChanged(const QMultiHash<ModelNode, InformationName> &informationChangedHash)
 {
     if (noValidSelection())

src/plugins/qmldesigner/components/propertyeditor/propertyeditorview.h

@@ -59,6 +59,9 @@ public:
                               AuxiliaryDataKeyView key,
                               const QVariant &data) override;
 
+    void signalDeclarationPropertiesChanged(const QVector<SignalDeclarationProperty> &propertyList,
+                                            PropertyChangeFlags propertyChange) override;
+
     void instanceInformationsChanged(const QMultiHash<ModelNode, InformationName> &informationChangedHash) override;
 
     void nodeIdChanged(const ModelNode& node, const QString& newId, const QString& oldId) override;