code: /*
   * 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.
   */
  /*
   * $Id$
   */
  package org.apache.xalan.trace;
  
  import org.apache.xalan.templates.ElemTemplateElement;
  import org.apache.xalan.transformer.TransformerImpl;
  import org.apache.xpath.XPath;
  import org.apache.xpath.objects.XObject;
  
  import org.w3c.dom.Node;
  
  /**
   * Event triggered by selection of a node in the style stree.
   * @xsl.usage advanced
   */
  public class SelectionEvent implements java.util.EventListener
  {
  
    /**
     * The node in the style tree where the event occurs.
     */
    public final ElemTemplateElement m_styleNode;
  
    /**
     * The XSLT processor instance.
     */
    public final TransformerImpl m_processor;
  
    /**
     * The current context node.
     */
    public final Node m_sourceNode;
  
    /**
     * The attribute name from which the selection is made.
     */
    public final String m_attributeName;
  
    /**
     * The XPath that executed the selection.
     */
    public final XPath m_xpath;
  
    /**
     * The result of the selection.
     */
    public final XObject m_selection;
  
    /**
     * Create an event originating at the given node of the style tree.
     * 
     * @param processor The XSLT TransformerFactory.
     * @param sourceNode The current context node.
     * @param styleNode node in the style tree reference for the event.
     * Should not be null.  That is not enforced.
     * @param attributeName The attribute name from which the selection is made.
     * @param xpath The XPath that executed the selection.
     * @param selection The result of the selection.
     */
    public SelectionEvent(TransformerImpl processor, Node sourceNode,
                          ElemTemplateElement styleNode, String attributeName,
                          XPath xpath, XObject selection)
    {
  
      this.m_processor = processor;
      this.m_sourceNode = sourceNode;
      this.m_styleNode = styleNode;
      this.m_attributeName = attributeName;
      this.m_xpath = xpath;
      this.m_selection = selection;
    }
  }
  