content: /*******************************************************************************
   * Copyright (c) 2006, 2007 IBM Corporation 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:
   *   IBM - Initial API and implementation
   *
   * </copyright>
   *
   * $Id$
   * /
   *******************************************************************************/
  package org.eclipse.jet.internal.taglib.control;
  
  import org.eclipse.jet.BufferedJET2Writer;
  import org.eclipse.jet.JET2Context;
  import org.eclipse.jet.JET2Writer;
  import org.eclipse.jet.taglib.AbstractContainerTag;
  import org.eclipse.jet.taglib.JET2TagException;
  import org.eclipse.jet.taglib.MarkerHelper;
  import org.eclipse.jet.taglib.TagInfo;
  import org.eclipse.jet.transform.TransformContextExtender;
  
  /**
   * Implement the standard JET2 tag &lt;c:marker&gt;.
   */
  public class MarkerTag extends AbstractContainerTag
  {
  
    int startOffset;
    /**
     * 
     */
    public MarkerTag()
    {
      super();
    }
  
    /* (non-Javadoc)
     * @see org.eclipse.jet.taglib.ContainerTag#doBeforeBody(org.eclipse.jet.taglib.TagInfo, org.eclipse.jet.JET2Context, org.eclipse.jet.JET2Writer)
     */
    public void doBeforeBody(TagInfo td, JET2Context context, JET2Writer out) throws JET2TagException
    {
      if(out instanceof BufferedJET2Writer) {
        BufferedJET2Writer bufferedOut = (BufferedJET2Writer)out;
        startOffset = bufferedOut.getContentLength();
      } else {
        // expected out to be a BufferedJET2Writer
        throw new IllegalArgumentException();
      }
    }
  
    /* (non-Javadoc)
     * @see org.eclipse.jet.taglib.ContainerTag#doAfterBody(org.eclipse.jet.taglib.TagInfo, org.eclipse.jet.JET2Context, org.eclipse.jet.JET2Writer)
     */
    public void doAfterBody(TagInfo td, JET2Context context, JET2Writer out) throws JET2TagException
    {
      if (out instanceof BufferedJET2Writer)
      {
        BufferedJET2Writer bufferedOut = (BufferedJET2Writer)out;
        String description = getAttribute("description"); //$NON-NLS-1$
        int endOffset = bufferedOut.getContentLength();
        MarkerHelper.createMarkerOnWriter(
          bufferedOut,
          startOffset,
          endOffset,
          description,
          td,
          TransformContextExtender.getInstance(context).getTemplatePath());
      }
      else
      {
        // expected out to be a BufferedJET2Writer
        throw new IllegalArgumentException();
      }
    }
  
  }
  