EmfParsleyDslOutlineTreeProvider in Java

dsl/org.eclipse.emf.parsley.dsl.ui/src/org/eclipse/emf/parsley/dsl/ui/outline/EmfParsleyDslOutlineTreeProvider.java

@@ -0,0 +1,61 @@
+/**
+ * Copyright (c) 2013 RCP Vision (http://www.rcp-vision.com) 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:
+ * Lorenzo Bettini - initial API and implementation
+ */
+package org.eclipse.emf.parsley.dsl.ui.outline;
+
+import static org.eclipse.xtext.xbase.lib.IterableExtensions.sortBy;
+
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.emf.parsley.dsl.model.BindingsSpecification;
+import org.eclipse.emf.parsley.dsl.model.Model;
+import org.eclipse.emf.parsley.dsl.model.PartsSpecifications;
+import org.eclipse.emf.parsley.dsl.model.WithExtendsClause;
+import org.eclipse.xtext.nodemodel.util.NodeModelUtils;
+import org.eclipse.xtext.ui.editor.outline.IOutlineNode;
+import org.eclipse.xtext.ui.editor.outline.impl.DefaultOutlineTreeProvider;
+import org.eclipse.xtext.ui.editor.outline.impl.DocumentRootNode;
+
+/**
+ * Customization of the default outline structure.
+ * 
+ * see http://www.eclipse.org/Xtext/documentation.html#outline
+ */
+public class EmfParsleyDslOutlineTreeProvider extends DefaultOutlineTreeProvider {
+	protected void _createChildren(DocumentRootNode parentNode, Model m) { // NOSONAR
+		// skip useless toplevel node and imports - start tree main module element
+		createChildren(parentNode, m.getModule());
+	}
+
+	protected void _createChildren(IOutlineNode parentNode, org.eclipse.emf.parsley.dsl.model.Module m) { // NOSONAR
+		// this way the nodes will appear in the same order as
+		// specified in the program text
+		var contentsOrderedByOffset = sortBy(m.eContents(),
+			it -> Integer.valueOf(NodeModelUtils.getNode(it).getOffset()));
+		for (EObject o : contentsOrderedByOffset) {
+			createNode(parentNode, o);
+		}
+	}
+
+	public boolean _isLeaf(org.eclipse.emf.parsley.dsl.model.Module m) { // NOSONAR
+		return false;
+	}
+
+	public boolean _isLeaf(BindingsSpecification e) { // NOSONAR
+		return true;
+	}
+
+	public boolean _isLeaf(PartsSpecifications e) { // NOSONAR
+		return true;
+	}
+
+	public boolean _isLeaf(WithExtendsClause e) { // NOSONAR
+		return true;
+	}
+}

dsl/org.eclipse.emf.parsley.dsl/src/org/eclipse/emf/parsley/dsl/GenerateEmfParsleyDsl.mwe2

@@ -52,6 +52,9 @@ Workflow {
 			labelProvider = {
 				generateXtendStub = false
 			}
+			outline = {
+				generateXtendStub = false
+			}
 		}
 	}
 }