PdfNodeChangeListener.java example

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package org.docear.plugin.pdfutilities.listener;

import java.io.File;
import java.io.IOException;
import java.net.URI;

import javax.swing.JOptionPane;

import org.docear.plugin.pdfutilities.features.AnnotationModel;
import org.docear.plugin.pdfutilities.features.AnnotationNodeModel;
import org.docear.plugin.pdfutilities.features.IAnnotation.AnnotationType;
import org.docear.plugin.pdfutilities.map.AnnotationController;
import org.docear.plugin.pdfutilities.pdf.DocumentReadOnlyException;
import org.docear.plugin.pdfutilities.pdf.PdfAnnotationImporter;
import org.docear.plugin.pdfutilities.pdf.PdfFileFilter;
import org.docear.plugin.pdfutilities.pdf.ReadOnlyExceptionWarningHandler;
import org.freeplane.core.util.LogUtils;
import org.freeplane.core.util.TextUtils;
import org.freeplane.features.map.INodeChangeListener;
import org.freeplane.features.map.NodeModel;
import org.freeplane.features.mode.Controller;
import org.freeplane.plugin.workspace.URIUtils;

import de.intarsys.pdf.cos.COSRuntimeException;

public class PdfNodeChangeListener implements INodeChangeListener {

	public void nodeChanged(org.freeplane.features.map.NodeChangeEvent event) {
		if (event.getProperty().equals(NodeModel.HYPERLINK_CHANGED)) {
			URI newUri = (URI) event.getNewValue();
			if (newUri != null) {
				try{
					URI newAbsoluteUri = URIUtils.resolveURI(URIUtils.getAbsoluteURI(event.getNode().getMap()), newUri);
					if(newAbsoluteUri == null) {
						return;
					}
					File file = URIUtils.getFile(newAbsoluteUri);
					if(new PdfFileFilter().accept(file)) {
						AnnotationModel model = AnnotationController.getModel(event.getNode(), false);
						if(model == null){
							model = new AnnotationModel(0);
							model.setSource(newAbsoluteUri);
							model.setAnnotationType(AnnotationType.PDF_FILE);
							AnnotationController.setModel(event.getNode(), model);
						}
					}
					else {
						event.getNode().removeExtension(AnnotationModel.class);
					}
				}
				catch(Exception e){
					LogUtils.warn(e);
					//DOCEAR - remove model if exists?
				}
			}
			else if(AnnotationController.getModel(event.getNode(), false) != null){
				AnnotationController.setModel(event.getNode(), null);
			}
		}
		else if(event.getProperty().equals(NodeModel.NODE_TEXT)){
			NodeModel node = event.getNode();			
			AnnotationNodeModel annotation = AnnotationController.getAnnotationNodeModel(node);
			if(annotation != null && annotation.getAnnotationType() != null && !annotation.getAnnotationType().equals(AnnotationType.PDF_FILE)){
				try {
					ReadOnlyExceptionWarningHandler warningHandler = new ReadOnlyExceptionWarningHandler();
					warningHandler.prepare();
					while(warningHandler.retry()) {
						try {
							new PdfAnnotationImporter().renameAnnotation(annotation, event.getNewValue().toString());
							System.gc();
							warningHandler.consume();
						} catch (DocumentReadOnlyException e) {
							if(warningHandler.skip()) {
								break;
							}					
							warningHandler.showDialog(URIUtils.getFile(annotation.getSource()));
						}
					}
				} catch (IOException e) {
					if(e.getMessage().equals("destination is read only")){ //$NON-NLS-1$
						Object[] options = { TextUtils.getText("DocearRenameAnnotationListener.1"), TextUtils.getText("DocearRenameAnnotationListener.2"),TextUtils.getText("DocearRenameAnnotationListener.3") }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
						int result = JOptionPane.showOptionDialog(Controller.getCurrentController().getMapViewManager().getComponent(node), TextUtils.getText("DocearRenameAnnotationListener.4"), TextUtils.getText("DocearRenameAnnotationListener.5"), JOptionPane.YES_NO_CANCEL_OPTION, JOptionPane.QUESTION_MESSAGE, null, options, options[0]); //$NON-NLS-1$ //$NON-NLS-2$
						if( result == JOptionPane.OK_OPTION){
							this.nodeChanged(event);
						}
						else if( result == JOptionPane.CANCEL_OPTION ){
							//Controller.getCurrentModeController().rollback();
							node.setText("" + event.getOldValue());							 //$NON-NLS-1$
						}
					}
					else{
						LogUtils.severe("DocearRenameAnnotationListener IOException at Target("+node.getText()+"): ", e); //$NON-NLS-1$ //$NON-NLS-2$
					}
				} catch (COSRuntimeException e) {
					LogUtils.severe("DocearRenameAnnotationListener COSRuntimeException at Target("+node.getText()+"): ", e); //$NON-NLS-1$ //$NON-NLS-2$
				}
			}
		}		
	}

}