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/*
* Copyright 2000-2009 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jetbrains.idea.svn.dialogs;
import com.intellij.openapi.Disposable;
import com.intellij.openapi.util.Disposer;
import com.intellij.util.NotNullFunction;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.idea.svn.SvnVcs;
import org.jetbrains.idea.svn.dialogs.browserCache.*;
import org.tmatesoft.svn.core.SVNURL;
import javax.swing.tree.DefaultTreeModel;
import javax.swing.tree.TreeNode;
import java.util.Enumeration;
import java.util.List;
public class RepositoryTreeModel extends DefaultTreeModel implements Disposable {
private boolean myIsDisposed;
private final SvnVcs myVCS;
private boolean myIsShowFiles;
private final Loader myCacheLoader;
private final RepositoryBrowserComponent myBrowser;
private NotNullFunction<RepositoryBrowserComponent, Expander> myDefaultExpanderFactory;
public RepositoryTreeModel(@NotNull SvnVcs vcs, boolean showFiles, final RepositoryBrowserComponent browser) {
super(null);
myVCS = vcs;
myIsShowFiles = showFiles;
myBrowser = browser;
myCacheLoader = CacheLoader.getInstance();
myDefaultExpanderFactory = new KeepingExpandedExpander.Factory();
}
public boolean isShowFiles() {
return myIsShowFiles;
}
public void setShowFiles(boolean showFiles) {
myIsShowFiles = showFiles;
}
public void setRoots(SVNURL[] urls) {
final RepositoryTreeRootNode rootNode = new RepositoryTreeRootNode(this, urls);
Disposer.register(this, rootNode);
setRoot(rootNode);
}
public void setSingleRoot(SVNURL url) {
final RepositoryTreeNode rootNode = new RepositoryTreeNode(this, null, url, url);
Disposer.register(this, rootNode);
setRoot(rootNode);
}
private boolean hasRoot(SVNURL url) {
if (getRoot()instanceof RepositoryTreeNode) {
return ((RepositoryTreeNode) getRoot()).getUserObject().equals(url);
}
RepositoryTreeRootNode root = (RepositoryTreeRootNode) getRoot();
for (int i = 0; i < root.getChildCount(); i++) {
RepositoryTreeNode node = (RepositoryTreeNode) root.getChildAt(i);
if (node.getUserObject().equals(url)) {
return true;
}
}
return false;
}
public TreeNode[] getPathToSubRoot(final TreeNode node) {
final TreeNode[] path = getPathToRoot(node);
final TreeNode[] result = new TreeNode[path.length - 1];
System.arraycopy(path, 1, result, 0, path.length - 1);
return result;
}
public void addRoot(SVNURL url) {
if (!hasRoot(url)) {
((RepositoryTreeRootNode) getRoot()).addRoot(url);
}
}
public void removeRoot(SVNURL url) {
RepositoryTreeRootNode root = (RepositoryTreeRootNode) getRoot();
for (int i = 0; i < root.getChildCount(); i++) {
RepositoryTreeNode node = (RepositoryTreeNode) root.getChildAt(i);
if (node.getUserObject().equals(url)) {
root.remove(node);
}
}
}
public SvnVcs getVCS() {
return myVCS;
}
public void dispose() {
myIsDisposed = true;
}
public boolean isDisposed() {
return myIsDisposed;
}
public Loader getCacheLoader() {
return myCacheLoader;
}
@NotNull
public Expander getLazyLoadingExpander() {
return myDefaultExpanderFactory.fun(myBrowser);
}
@NotNull
public Expander getSelectionKeepingExpander() {
return new KeepingSelectionExpander(myBrowser);
}
public void setDefaultExpanderFactory(final NotNullFunction<RepositoryBrowserComponent, Expander> defaultExpanderFactory) {
myDefaultExpanderFactory = defaultExpanderFactory;
}
@Nullable
public RepositoryTreeNode findByUrl(final RepositoryTreeNode oldNode) {
if (oldNode.getParent() == null) {
return oldNode;
}
TreeNode[] oldPath = getPathToRoot(oldNode);
if (! (oldPath[0] instanceof RepositoryTreeNode)) {
final TreeNode[] result = new TreeNode[oldPath.length - 1];
System.arraycopy(oldPath, 1, result, 0, oldPath.length - 1);
oldPath = result;
}
TreeNode root = (TreeNode) getRoot();
if (! (root instanceof RepositoryTreeNode)) {
final Enumeration children = root.children();
root = null;
while (children.hasMoreElements()) {
TreeNode node = (TreeNode) children.nextElement();
if ((node instanceof RepositoryTreeNode) && (((RepositoryTreeNode) node).getURL().equals(((RepositoryTreeNode) oldPath[0]).getURL()))) {
root = node;
break;
}
}
} else {
if ((root == null) || (! ((RepositoryTreeNode) root).getURL().equals(((RepositoryTreeNode) oldPath[0]).getURL()))) {
return null;
}
}
if (root == null) {
return null;
}
for (int i = 1; i < oldPath.length; i++) {
final TreeNode treeNode = oldPath[i];
if (root == null) {
return null;
}
root = getChild((RepositoryTreeNode) root, ((RepositoryTreeNode) treeNode).getURL());
}
return (RepositoryTreeNode) root;
}
@Nullable
private RepositoryTreeNode getChild(final RepositoryTreeNode node, final SVNURL url) {
final List<RepositoryTreeNode> children = node.getAlreadyLoadedChildren();
for (RepositoryTreeNode child : children) {
if (child.getURL().equals(url)) {
return child;
}
}
return null;
}
}
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