1 files changed, 52 insertions, 0 deletions
diff --git a/plugins/uml/properties/org.eclipse.papyrus.uml.properties/src/org/eclipse/papyrus/uml/properties/listeners/ReadOnlyStringPropertiesListener.java b/plugins/uml/properties/org.eclipse.papyrus.uml.properties/src/org/eclipse/papyrus/uml/properties/listeners/ReadOnlyStringPropertiesListener.java
new file mode 100644
index 00000000000..7816319d9da
--- /dev/null
+++ b/plugins/uml/properties/org.eclipse.papyrus.uml.properties/src/org/eclipse/papyrus/uml/properties/listeners/ReadOnlyStringPropertiesListener.java
@@ -0,0 +1,52 @@
+/*****************************************************************************
+ * Copyright (c) 2017 CEA LIST and others.
+ * 
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *   Fanch BONNABESSE (ALL4TEC) fanch.bonnabesse@all4tec.net - Initial API and implementation, Bug 522124
+ *   
+ *****************************************************************************/
+
+package org.eclipse.papyrus.uml.properties.listeners;
+
+import java.util.Set;
+
+import org.eclipse.core.databinding.observable.IObservable;
+import org.eclipse.core.databinding.observable.value.IObservableValue;
+import org.eclipse.papyrus.infra.properties.ui.listeners.IPropertiesListener;
+import org.eclipse.papyrus.infra.properties.ui.modelelement.DataSource;
+import org.eclipse.papyrus.infra.properties.ui.widgets.AbstractPropertyEditor;
+
+/**
+ * PropertiesListener to set readonly an editor based on the value of a String input.
+ * 
+ * @since 3.0
+ */
+public class ReadOnlyStringPropertiesListener implements IPropertiesListener {
+
+	/**
+	 * {@inheritDoc}
+	 */
+	@Override
+	public void handle(final AbstractPropertyEditor editor, final DataSource input, final Set<String> listeningPropertyPaths) {
+		boolean isReadOnly = false;
+		for (String propertyPath : listeningPropertyPaths) {
+			IObservable observable = input.getObservable(propertyPath);
+
+			if (observable instanceof IObservableValue<?>) {
+				Object value = ((IObservableValue) observable).getValue();
+
+				if (value instanceof String && !((String) value).isEmpty()) {
+					isReadOnly = true;
+				}
+			}
+		}
+
+		editor.setReadOnly(isReadOnly);
+	}
+
+}