eclipse-ui/src/org/apache/sling/ide/eclipse/ui/actions/JcrNodeRenameHandler.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.sling.ide.eclipse.ui.actions;

import org.apache.sling.ide.eclipse.ui.internal.SelectionUtils;
import org.apache.sling.ide.eclipse.ui.nav.model.JcrNode;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.jface.dialogs.IInputValidator;
import org.eclipse.jface.dialogs.InputDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.handlers.HandlerUtil;

public class JcrNodeRenameHandler extends AbstractHandler {

    @Override
    public Object execute(ExecutionEvent event) throws ExecutionException {

        ISelection sel = HandlerUtil.getCurrentSelection(event);

        JcrNode node = SelectionUtils.getFirst(sel, JcrNode.class);
        if (node == null) {
            return null;
        }

        Shell shell = HandlerUtil.getActiveShell(event);

        InputDialog id = new InputDialog(shell, "Change Node Name",
                "Enter new name for node '" + node.getDescription() + "':", node.getLabel(),
                NodeNameValidator.INSTANCE);

        if (id.open() == IStatus.OK) {
            node.rename(id.getValue());
        }

        return null;
    }

    static final class NodeNameValidator implements IInputValidator {

        static final NodeNameValidator INSTANCE = new NodeNameValidator();

        @Override
        public String isValid(String newText) {
            if (newText != null && newText.trim().length() > 0 && newText.trim().equals(newText)) {
                return null;
            } else {
                return "Invalid input";
            }
        }
    }

}