DuplicateSelectionAction.java

/*******************************************************************************
 * Copyright (c) 2004, 2008 John Krasnay 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:
 *     John Krasnay - initial API and implementation
 *******************************************************************************/
package net.sf.vex.action;

import net.sf.vex.dom.Element;
import net.sf.vex.widget.IVexWidget;

/**
 * Duplicates current selection or element.
 */
public class DuplicateSelectionAction extends AbstractVexAction {

    public void run(final IVexWidget vexWidget) {
        
        vexWidget.doWork(new Runnable() {
            public void run() {
                if (!vexWidget.hasSelection()) {
                    Element element = vexWidget.getCurrentElement();
                    if (element.getParent() == null) {
                        // Can't dup the root element
                        return;
                    }
                    vexWidget.moveTo(element.getStartOffset());
                    vexWidget.moveTo(element.getEndOffset() + 1, true);
                }

                vexWidget.copySelection();
                int startOffset = vexWidget.getSelectionEnd(); 
                vexWidget.moveTo(startOffset);
                vexWidget.paste();
                int endOffset = vexWidget.getCaretOffset();
                vexWidget.moveTo(startOffset);
                vexWidget.moveTo(endOffset, true);
            }
        });
    }

}