| /*=============================================================================# |
| # Copyright (c) 2014, 2020 Stephan Wahlbrink and others. |
| # |
| # This program and the accompanying materials are made available under the |
| # terms of the Eclipse Public License 2.0 which is available at |
| # https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0 |
| # which is available at https://www.apache.org/licenses/LICENSE-2.0. |
| # |
| # SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 |
| # |
| # Contributors: |
| # Stephan Wahlbrink <sw@wahlbrink.eu> - initial API and implementation |
| #=============================================================================*/ |
| |
| package org.eclipse.statet.ltk.ui.sourceediting; |
| |
| import java.util.List; |
| |
| import org.eclipse.jface.viewers.ITreeContentProvider; |
| import org.eclipse.jface.viewers.Viewer; |
| |
| import org.eclipse.statet.ltk.core.SourceModelStamp; |
| import org.eclipse.statet.ltk.model.core.element.LtkModelElementFilter; |
| import org.eclipse.statet.ltk.model.core.element.SourceStructElement; |
| import org.eclipse.statet.ltk.model.core.element.SourceUnitModelInfo; |
| |
| |
| public class OutlineContentProvider implements ITreeContentProvider { |
| |
| |
| public interface IOutlineContent { |
| |
| SourceUnitModelInfo getModelInfo(Object inputElement); |
| |
| LtkModelElementFilter getContentFilter(); |
| |
| } |
| |
| |
| private final IOutlineContent content; |
| |
| |
| public OutlineContentProvider(final IOutlineContent content) { |
| this.content= content; |
| } |
| |
| |
| protected final IOutlineContent getContent() { |
| return this.content; |
| } |
| |
| public SourceModelStamp getStamp(final Object inputElement) { |
| final SourceUnitModelInfo modelInfo= getContent().getModelInfo(inputElement); |
| return (modelInfo != null) ? modelInfo.getStamp() : null; |
| } |
| |
| @Override |
| public void inputChanged(final Viewer viewer, final Object oldInput, final Object newInput) { |
| } |
| |
| @Override |
| public Object[] getElements(final Object inputElement) { |
| final SourceUnitModelInfo modelInfo= getContent().getModelInfo(inputElement); |
| if (modelInfo != null) { |
| final List<? extends SourceStructElement> children= modelInfo.getSourceElement().getSourceChildren(getContent().getContentFilter()); |
| return children.toArray(new SourceStructElement[children.size()]); |
| } |
| return new SourceStructElement[0]; |
| } |
| |
| @Override |
| public void dispose() { |
| } |
| |
| @Override |
| public Object getParent(final Object element) { |
| final SourceStructElement o= (SourceStructElement) element; |
| return o.getSourceParent(); |
| } |
| |
| @Override |
| public boolean hasChildren(final Object element) { |
| final SourceStructElement o= (SourceStructElement) element; |
| return o.hasSourceChildren(getContent().getContentFilter()); |
| } |
| |
| @Override |
| public Object[] getChildren(final Object parentElement) { |
| // Check required for E bug #438919 |
| if (parentElement instanceof SourceStructElement) { |
| final SourceStructElement o= (SourceStructElement) parentElement; |
| final List<? extends SourceStructElement> children= o.getSourceChildren(getContent().getContentFilter()); |
| return children.toArray(new SourceStructElement[children.size()]); |
| } |
| return new SourceStructElement[0]; |
| } |
| |
| } |