content: package com.japisoft.editix.action.xml;
  
  import java.awt.event.ActionEvent;
  
  import javax.swing.AbstractAction;
  import javax.swing.text.BadLocationException;
  
  import com.japisoft.editix.ui.EditixFactory;
  import com.japisoft.editix.ui.EditixFrame;
  import com.japisoft.framework.xml.parser.node.FPNode;
  import com.japisoft.xmlpad.XMLContainer;
  
  /**
  This program is available under two licenses : 
  
  1. For non commercial usage : 
  
  This program is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.
  
  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.
  
  You should have received a copy of the GNU General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  
  2. For commercial usage :
  
  You need to get a commercial license for source usage at : 
  
  http://www.editix.com/buy.html
  
  Copyright (c) 2018 Alexandre Brillant - JAPISOFT SARL - http://www.japisoft.com
  
  @author Alexandre Brillant - abrillant@japisoft.com
  @author JAPISOFT SARL - http://www.japisoft.com
  
  */
  public class CommentAction extends AbstractAction {
  
  	public void actionPerformed(ActionEvent e) {
  
  		XMLContainer container = EditixFrame.THIS.getSelectedContainer();
  		if ( container == null ) {
  			EditixFactory.buildAndShowErrorDialog( "No document" );
  			return;
  		}
  		
  		// Check if we are inside a comment
  		boolean in = container.getXMLDocument().isInsideComment( container.getEditor().getCaretPosition() );
  		if ( in ) {
  			// Remove the comment
  			Integer[] l = container.getXMLDocument().getCommentDelimiters( container.getEditor().getCaretPosition() );
  			if ( l != null ) {
  				int start = l[ 0 ].intValue();
  				int stop = l[ 1 ].intValue();
  				container.getEditor().select( 
  						start, 
  						stop + 1 );
  				container.getEditor().replaceSelection( 
  						container.getEditor().getSelectedText().substring(
  								4,
  								container.getEditor().getSelectedText().length() - 3
  						)
  				);
  				return;
  			} else {
  				EditixFactory.buildAndShowErrorDialog( "Can't remove the current comment" );
  				return;
  			}
  		}
  
  		String selection = container.getEditor().getSelectedText();
  		if ( selection == null ) {
  			// Try with the current node
  			FPNode n = container.getCurrentElementNode();
  			if ( n != null ) {
  				int start = n.getStartingOffset();
  				int stop = n.getStoppingOffset();
  				container.getEditor().select( start, stop + 1 );
  				selection = container.getEditor().getSelectedText();
  			}
  		}
  
  		if ( selection != null ) {
  				// Test for comment inside
  				if ( selection.indexOf( "<!--" ) > -1 ) {
  					EditixFactory.buildAndShowWarningDialog( "Please remove the comment(s) inside before operating" );
  					return;
  				}			
  				String newContent = "<!--" + selection + "-->";
  				container.getEditor().replaceSelection( newContent );
  		} else {
  			try {
  				// Insert empty comment at the cursor location
  				container.getEditor().getDocument().insertString(
  						container.getEditor().getCaretPosition(),
  						"<!-- -->", null );
  				container.getEditor().setCaretPosition(
  						container.getEditor().getCaretPosition() + 4 );
  			} catch (BadLocationException e1) {
  				EditixFactory.buildAndShowErrorDialog( "Can't comment" );
  			}
  		}
  			
  	}
  
  }
  