| /******************************************************************************* |
| * Copyright (c) 2012, 2014 Tasktop Technologies 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: |
| * Tasktop Technologies - initial API and implementation |
| * Sebastien Dubois (Ericsson) - Improvements for bug 400266 |
| *******************************************************************************/ |
| |
| package org.eclipse.mylyn.internal.reviews.ui.compare; |
| |
| import java.lang.reflect.Field; |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| |
| import org.eclipse.compare.CompareConfiguration; |
| import org.eclipse.compare.contentmergeviewer.TextMergeViewer; |
| import org.eclipse.compare.structuremergeviewer.DiffNode; |
| import org.eclipse.compare.structuremergeviewer.Differencer; |
| import org.eclipse.compare.structuremergeviewer.ICompareInput; |
| import org.eclipse.compare.structuremergeviewer.IDiffElement; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.mylyn.reviews.core.model.IFileItem; |
| import org.eclipse.mylyn.reviews.core.model.IReviewItem; |
| import org.eclipse.mylyn.reviews.core.model.IReviewItemSet; |
| import org.eclipse.mylyn.reviews.ui.ReviewBehavior; |
| import org.eclipse.swt.widgets.Composite; |
| |
| /** |
| * @author Steffen Pingel |
| * @author Sebastien Dubois |
| * @author Miles Parker |
| */ |
| public class ReviewItemSetCompareEditorInput extends ReviewItemCompareEditorInput { |
| |
| private final IReviewItemSet items; |
| |
| private DiffNode root; |
| |
| public ReviewItemSetCompareEditorInput(CompareConfiguration configuration, IReviewItemSet items, |
| IFileItem selection, ReviewBehavior behavior) { |
| super(configuration, behavior); |
| this.items = items; |
| setTitle(items.getName()); |
| } |
| |
| @Override |
| protected Object prepareInput(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException { |
| if (root != null) { |
| return root; |
| } |
| |
| root = new DiffNode(Differencer.NO_CHANGE); |
| for (IReviewItem item : items.getItems()) { |
| if (!(item instanceof IFileItem)) { |
| continue; |
| } |
| IFileItem fileItem = (IFileItem) item; |
| if (fileItem.getBase().getContent() != null) { |
| FileItemNode node = new FileItemNode(behavior, fileItem, monitor); |
| |
| DiffNode parent = findNode(root, node.getPath()); |
| parent.add(node); |
| } |
| } |
| |
| for (IDiffElement child : root.getChildren()) { |
| if (child instanceof FileItemNode) { |
| flattenTree((FileItemNode) child); |
| } |
| } |
| |
| return root; |
| } |
| |
| private void flattenTree(FileItemNode node) { |
| mergeChild(node); |
| for (IDiffElement child : node.getChildren()) { |
| if (child instanceof FileItemNode) { |
| flattenTree((FileItemNode) child); |
| } |
| } |
| } |
| |
| public void mergeChild(FileItemNode node) { |
| if (node.getChildren().length == 1 && isDirectory(node.getChildren()[0])) { |
| FileItemNode child = (FileItemNode) node.getChildren()[0]; |
| node.setName(node.getName() + "/" + child.getName()); //$NON-NLS-1$ |
| node.remove(child); |
| for (IDiffElement element : child.getChildren()) { |
| node.add(element); |
| } |
| mergeChild(node); |
| } |
| } |
| |
| private boolean isDirectory(IDiffElement element) { |
| return element instanceof FileItemNode && ((FileItemNode) element).getFileItem() == null; |
| } |
| |
| private DiffNode findNode(DiffNode root, IPath path) { |
| if (path.segmentCount() == 1) { |
| return root; |
| } |
| |
| String name = path.segment(0); |
| |
| // try to find existing path segment |
| IDiffElement child = root.findChild(name); |
| if (child instanceof DiffNode) { |
| return findNode((DiffNode) child, path.removeFirstSegments(1)); |
| } |
| |
| // create new path segment |
| FileItemNode node = new FileItemNode(name); |
| root.add(node); |
| return findNode(node, path.removeFirstSegments(1)); |
| } |
| |
| @Override |
| public Viewer findContentViewer(Viewer oldViewer, ICompareInput input, Composite parent) { |
| Viewer contentViewer = super.findContentViewer(oldViewer, input, parent); |
| if (input instanceof FileItemNode && ((FileItemNode) input).getFileItem() != null) { |
| getCompareConfiguration().setLabelProvider(input, ((FileItemNode) input).getLabelProvider()); |
| //NOTE: This solves the problem described in bug 402060, but causes a bad listener leak in AbstractTextEditor so we remove it for now |
| //updateViewerConfig(contentViewer, (FileItemNode) input); |
| } |
| return contentViewer; |
| } |
| |
| //NOTE: This is a temporary hack to work around the problem described in bug 402060. It should be removed when the bug is fixed |
| protected void updateViewerConfig(Viewer aContentViewer, FileItemNode input) { |
| if (aContentViewer instanceof TextMergeViewer) { |
| final TextMergeViewer textMergeViewer = (TextMergeViewer) aContentViewer; |
| try { |
| final Class<TextMergeViewer> clazz = TextMergeViewer.class; |
| Field declaredField = clazz.getDeclaredField("isConfigured"); //$NON-NLS-1$ |
| declaredField.setAccessible(true); |
| declaredField.setBoolean(textMergeViewer, false); |
| Method declaredMethod = clazz.getDeclaredMethod("updateContent", Object.class, Object.class, //$NON-NLS-1$ |
| Object.class); |
| declaredMethod.setAccessible(true); |
| declaredMethod.invoke(textMergeViewer, null, input.getLeft(), input.getRight()); |
| } catch (Throwable t) { |
| //do nothing for now |
| } |
| } |
| } |
| } |