Add MapFileCompareEditorInput
Change-Id: I102f7b039df5c07d4163cdd954887b9a90ca0451
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
diff --git a/org.eclipse.egit.relengtools/src/org/eclipse/egit/internal/relengtools/MapFileCompareEditorInput.java b/org.eclipse.egit.relengtools/src/org/eclipse/egit/internal/relengtools/MapFileCompareEditorInput.java
new file mode 100755
index 0000000..6edb7c2
--- /dev/null
+++ b/org.eclipse.egit.relengtools/src/org/eclipse/egit/internal/relengtools/MapFileCompareEditorInput.java
@@ -0,0 +1,190 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2005 IBM Corporation 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:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.egit.internal.relengtools;
+
+import java.lang.reflect.InvocationTargetException;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.eclipse.compare.CompareConfiguration;
+import org.eclipse.compare.CompareEditorInput;
+import org.eclipse.compare.ResourceNode;
+import org.eclipse.compare.structuremergeviewer.DiffNode;
+import org.eclipse.compare.structuremergeviewer.Differencer;
+import org.eclipse.compare.structuremergeviewer.IDiffElement;
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.egit.core.GitTag;
+import org.eclipse.jface.viewers.Viewer;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.widgets.Composite;
+
+/**
+ * This class extends
+ * <code>CompareEditorInput<code>. It defines the input for map file compare editor, which is showed by
+ * <code>MapFileComparePage<code>
+ */
+public class MapFileCompareEditorInput extends CompareEditorInput {
+
+ private MapContentDocument[] documents;
+
+ private DiffNode root;
+
+ private Viewer viewer;
+
+ private MapProject mapProject;
+
+ private IProject[] selectedProjects;
+
+ private String tag; // The proposed tag
+
+ public MapFileCompareEditorInput() {
+ super(new CompareConfiguration());
+ documents = new MapContentDocument[0];
+ root = new DiffNode(Differencer.NO_CHANGE) {
+ @Override
+ public boolean hasChildren() {
+ return true;
+ }
+ };
+ mapProject = null;
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see
+ * org.eclipse.compare.CompareEditorInput#prepareInput(org.eclipse.core.
+ * runtime.IProgressMonitor)
+ */
+ @Override
+ protected Object prepareInput(IProgressMonitor monitor)
+ throws InvocationTargetException, InterruptedException {
+ final CompareConfiguration config = getCompareConfiguration();
+ config.setRightEditable(false);
+ config.setLeftEditable(false);
+ config.setRightLabel("Proposed change");
+ config.setLeftLabel("Current content");
+ return root;
+ }
+
+ public void updateInput(IProject[] projects, String tag)
+ throws CoreException {
+ setSelectedProjects(projects);
+ setTag(tag);
+ final MapContentDocument[] docs = constructDocuments();
+ setDocuments(docs);
+ buildTree();
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see
+ * org.eclipse.compare.CompareEditorInput#createDiffViewer(org.eclipse.swt
+ * .widgets.Composite)
+ */
+ @Override
+ public Viewer createDiffViewer(Composite parent) {
+ viewer = super.createDiffViewer(parent);
+ viewer.setInput(this);
+ return viewer;
+ }
+
+ public void updateMapProject(MapProject m) {
+ mapProject = m;
+ }
+
+ private void setDocuments(MapContentDocument[] docs) {
+ this.documents = docs;
+ }
+
+ private void buildTree() {
+ if (documents == null || documents.length == 0)
+ return;
+ // Empty the tree
+ if (root.hasChildren()) {
+ final IDiffElement[] children = root.getChildren();
+ for (int i = 0; i < children.length; i++) {
+ root.remove(children[i]);
+ }
+ }
+
+ // rebuild the tree
+ final DiffNode[] diffNodes = new DiffNode[documents.length];
+ for (int i = 0; i < diffNodes.length; i++) {
+ final ResourceNode resourceNode = new ResourceNode(documents[i]
+ .getMapFile().getFile()) {
+ @Override
+ public boolean isEditable() {
+ return false;
+ }
+ };
+
+ diffNodes[i] = new DiffNode(root, Differencer.CHANGE, null,
+ resourceNode, documents[i]) {
+ @Override
+ public Image getImage() {
+ return getLeft().getImage();
+ }
+ };
+ }
+ viewer.refresh();
+ }
+
+ /*
+ * Returns the map files that will change due to the projects being released
+ */
+ private MapFile[] getChangedMapFiles() {
+ if (selectedProjects == null || selectedProjects.length == 0)
+ return null;
+ final List projectList = new ArrayList();
+ final GitTag[] tags = mapProject.getTagsFor(selectedProjects);
+ for (int i = 0; i < selectedProjects.length; i++) {
+ if (!tags[i].getName().equals(tag)) {
+ projectList.add(selectedProjects[i]);
+ }
+ }
+ final IProject[] projects = (IProject[]) projectList
+ .toArray(new IProject[projectList.size()]);
+ return mapProject.getMapFilesFor(projects);
+ }
+
+ // Construct the document as the diffNode.
+ private MapContentDocument[] constructDocuments() throws CoreException {
+ final MapFile[] mapFiles = getChangedMapFiles();
+ if (mapFiles == null || mapFiles.length == 0)
+ return null;
+ final MapContentDocument[] docs = new MapContentDocument[mapFiles.length];
+ for (int i = 0; i < mapFiles.length; i++) {
+ docs[i] = new MapContentDocument(mapFiles[i]);
+ for (int j = 0; j < selectedProjects.length; j++) {
+ // update the new content of each selected projects
+ if (mapFiles[i].contains(selectedProjects[j])) {
+ docs[i].updateTag(selectedProjects[j], tag);
+ }
+ }
+ }
+ return docs;
+ }
+
+ private void setSelectedProjects(IProject[] projects) {
+ if (projects != null && projects.length != 0) {
+ selectedProjects = new IProject[projects.length];
+ System.arraycopy(projects, 0, selectedProjects, 0, projects.length);
+ }
+ }
+
+ private void setTag(String t) {
+ this.tag = t;
+ }
+}
