QmlDesigner Connection View signals fixes

Bug: QDS-1333
Change-Id: Ic0d4206888bd8c5bd3d5cef29225441f19efa59d
Reviewed-by: Christian Stenger <christian.stenger@qt.io>
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>

src/plugins/qmldesigner/components/bindingeditor/actioneditor.cpp

@@ -123,7 +123,7 @@ void ActionEditor::updateWindowName()
 {
     if (!m_dialog.isNull())
     {
-        m_dialog->setWindowTitle(tr("Action Editor"));
+        m_dialog->setWindowTitle(tr("Connection Editor"));
         m_dialog->raise();
     }
 }

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

@@ -290,7 +290,28 @@ void ConnectionModel::abstractPropertyChanged(const AbstractProperty &abstractPr
 
 void ConnectionModel::deleteConnectionByRow(int currentRow)
 {
-    signalHandlerPropertyForRow(currentRow).parentModelNode().destroy();
+    SignalHandlerProperty targetSignal = signalHandlerPropertyForRow(currentRow);
+    QmlDesigner::ModelNode node = targetSignal.parentModelNode();
+    QList<SignalHandlerProperty> allSignals = node.signalProperties();
+    if (allSignals.size() > 1) {
+        if (allSignals.contains(targetSignal))
+            node.removeProperty(targetSignal.name());
+    }
+    else {
+        node.destroy();
+    }
+}
+
+void ConnectionModel::removeRowFromTable(const SignalHandlerProperty &property)
+{
+    for (int currentRow = 0; currentRow < rowCount(); currentRow++) {
+        SignalHandlerProperty targetSignal = signalHandlerPropertyForRow(currentRow);
+
+        if (targetSignal == property) {
+            removeRow(currentRow);
+            break;
+        }
+    }
 }
 
 void ConnectionModel::handleException()

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

@@ -63,6 +63,7 @@ public:
     void abstractPropertyChanged(const AbstractProperty &abstractProperty);
 
     void deleteConnectionByRow(int currentRow);
+    void removeRowFromTable(const SignalHandlerProperty &property);
 
 protected:
     void addModelNode(const ModelNode &modelNode);

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

@@ -108,6 +108,8 @@ void ConnectionView::propertiesAboutToBeRemoved(const QList<AbstractProperty> &
             dynamicPropertiesModel()->bindingRemoved(property.toBindingProperty());
         } else if (property.isVariantProperty()) {
             //### dynamicPropertiesModel->bindingRemoved(property.toVariantProperty());
+        } else if (property.isSignalHandlerProperty()) {
+            connectionModel()->removeRowFromTable(property.toSignalHandlerProperty());
         }
     }
 }
@@ -180,6 +182,11 @@ bool ConnectionView::hasWidget() const
     return true;
 }
 
+bool ConnectionView::isWidgetEnabled()
+{
+    return widgetInfo().widget->isEnabled();
+}
+
 QTableView *ConnectionView::connectionTableView() const
 {
     return connectionViewWidget()->connectionTableView();

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

@@ -74,6 +74,7 @@ public:
 
     WidgetInfo widgetInfo() override;
     bool hasWidget() const override;
+    bool isWidgetEnabled();
 
     QTableView *connectionTableView() const;
     QTableView *bindingTableView() const;

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

@@ -63,7 +63,8 @@ ConnectionViewWidget::ConnectionViewWidget(QWidget *parent) :
                      [&]() {
         if (m_actionEditor->hasModelIndex()) {
             ConnectionModel *connectionModel = qobject_cast<ConnectionModel *>(ui->connectionView->model());
-            if (connectionModel->rowCount() > m_actionEditor->modelIndex().row())
+            if (connectionModel->connectionView()->isWidgetEnabled()
+                    && (connectionModel->rowCount() > m_actionEditor->modelIndex().row()))
             {
                 SignalHandlerProperty signalHandler =
                         connectionModel->signalHandlerPropertyForRow(m_actionEditor->modelIndex().row());
@@ -166,7 +167,7 @@ void ConnectionViewWidget::contextMenuEvent(QContextMenuEvent *event)
 
     QMenu menu(this);
 
-    menu.addAction(tr("Open Action Editor"), [&]() {
+    menu.addAction(tr("Open Connection Editor"), [&]() {
         if (index.isValid()) {
             m_actionEditor->showWidget(mapToGlobal(event->pos()).x(), mapToGlobal(event->pos()).y());
             m_actionEditor->setBindingValue(index.data().toString());

src/plugins/qmldesigner/designercore/include/modelnode.h

@@ -133,6 +133,7 @@ public:
     QList<NodeProperty> nodeProperties() const;
     QList<NodeListProperty> nodeListProperties() const;
     QList<BindingProperty> bindingProperties() const;
+    QList<SignalHandlerProperty> signalProperties() const;
     PropertyNameList propertyNames() const;
 
     bool hasProperties() const;

src/plugins/qmldesigner/designercore/model/modelnode.cpp

@@ -644,6 +644,16 @@ QList<BindingProperty> ModelNode::bindingProperties() const
     return propertyList;
 }
 
+QList<SignalHandlerProperty> ModelNode::signalProperties() const
+{
+    QList<SignalHandlerProperty> propertyList;
+
+    foreach (const AbstractProperty &property, properties())
+        if (property.isSignalHandlerProperty())
+            propertyList.append(property.toSignalHandlerProperty());
+    return propertyList;
+}
+
 /*!
 \brief removes a property from this node
 \param name name of the property