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  /*
   * JBoss, Home of Professional Open Source
   * Copyright ${year}, Red Hat, Inc. and individual contributors
   * by the @authors tag. See the copyright.txt in the distribution for a
   * full listing of individual contributors.
   *
   * This is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as
   * published by the Free Software Foundation; either version 2.1 of
  * the License, or (at your option) any later version.
  *
  * This software 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
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this software; if not, write to the Free
  * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
  */
 package org.richfaces.renderkit;
 
 import java.util.Map;
 
 import  javax.faces.FacesException;
 import  javax.faces.application.ResourceDependencies;
 import  javax.faces.application.ResourceDependency;
 import  javax.faces.component.UIComponent;
 import  javax.faces.context.FacesContext;
 import  javax.faces.context.ResponseWriter;
 
 import  org.ajax4jsf.model.DataVisitResult;
 import  org.ajax4jsf.model.DataVisitor;
 import  org.richfaces.component.Row;

Author(s):
Anton Belevich
 
 @ResourceDependencies({ @ResourceDependency(library = "org.richfaces", name = "ajax.reslib") })
 public abstract class AbstractRowsRenderer extends RendererBase implements DataVisitor {
     private static final Map<StringComponentAttributeROW_HANDLER_ATTRIBUTES = Collections
         .unmodifiableMap(ComponentAttribute.createMap(
             new ComponentAttribute(HtmlConstants.ONCLICK_ATTRIBUTE).setEventNames("rowclick").setComponentAttributeName(
                 "onrowclick"),
             new ComponentAttribute(HtmlConstants.ONDBLCLICK_ATTRIBUTE).setEventNames("rowdblclick").setComponentAttributeName(
                 "onrowdblclick"),
             new ComponentAttribute(HtmlConstants.ONMOUSEDOWN_ATTRIBUTE).setEventNames("rowmousedown")
                 .setComponentAttributeName("onrowmousedown"),
             new ComponentAttribute(HtmlConstants.ONMOUSEUP_ATTRIBUTE).setEventNames("rowmouseup").setComponentAttributeName(
                 "onrowmouseup"),
             new ComponentAttribute(HtmlConstants.ONMOUSEOVER_ATTRIBUTE).setEventNames("rowmouseover")
                 .setComponentAttributeName("onrowmouseover"),
             new ComponentAttribute(HtmlConstants.ONMOUSEMOVE_ATTRIBUTE).setEventNames("rowmousemove")
                 .setComponentAttributeName("onrowmousemove"),
             new ComponentAttribute(HtmlConstants.ONMOUSEOUT_ATTRIBUTE).setEventNames("rowmouseout").setComponentAttributeName(
                 "onrowmouseout"),
             new ComponentAttribute(HtmlConstants.ONKEYPRESS_ATTRIBUTE).setEventNames("rowkeypress").setComponentAttributeName(
                 "onrowkeypress"), new ComponentAttribute(HtmlConstants.ONKEYDOWN_ATTRIBUTE).setEventNames("rowkeydown")
                 .setComponentAttributeName("onrowkeydown"), new ComponentAttribute(HtmlConstants.ONKEYUP_ATTRIBUTE)
                 .setEventNames("rowkeyup").setComponentAttributeName("onrowkeyup")));
 
     public abstract void encodeRow(ResponseWriter writer, FacesContext facesContextRowHolderBase rowHolder)
         throws IOException;
 
     public abstract RowHolderBase createRowHolder(FacesContext context, UIComponent componentObject[] options);
 
     public DataVisitResult process(FacesContext facesContextObject rowKeyObject argument) {
         RowHolderBase holder = (RowHolderBaseargument;
         Row row = holder.getRow();
         row.setRowKey(facesContextrowKey);
 
         try {
             ResponseWriter writer = facesContext.getResponseWriter();
             holder.resetProcessCell();
             encodeRow(writerfacesContextholder);
         } catch (IOException e) {
             throw new FacesException(e);
         }
 
         holder.nextRow();
         return DataVisitResult.CONTINUE;
     }
 
     protected void encodeRows(FacesContext facesContextRowHolderBase rowHolder) {
         rowHolder.getRow().walk(facesContextthisrowHolder);
     }
 
     public void encodeFakeRow(FacesContext facesContextRowHolderBase rowHolderthrows IOException {
     }
 
     protected void renderRowHandlers(FacesContext contextUIDataTableBase dataTablethrows IOException {
         RenderKitUtils.renderPassThroughAttributesOptimized(contextdataTable);
     }
 
    public void processRows(ResponseWriter writer, FacesContext facesContext, UIComponent componentObject[] options)
        throws IOException {
        RowHolderBase rowHolder = createRowHolder(facesContextcomponentoptions);
        encodeRows(facesContextrowHolder);
        if (!rowHolder.hasWalkedOverRows()) {
            try {
                encodeFakeRow(facesContextrowHolder);
            } catch (IOException e) {
                throw new FacesException(e);
            }
        } else {
            doCleanup(facesContextrowHolder);
        }
    }
    protected void doCleanup(FacesContext contextRowHolderBase rowHolderthrows IOException {
        // Hook method
    }
    protected void doEncodeChildren(ResponseWriter writer, FacesContext facesContext, UIComponent componentthrows IOException {
        processRows(writerfacesContextcomponentnull);
    }
    public boolean getRendersChildren() {
        return true;
    }
    protected String get(FacesContext contextString key) {
        return (Stringcontext.getAttributes().get(key);
    }
    protected void put(FacesContext contextString keyString value) {
        context.getAttributes().put(keyvalue);
    }
    protected String[] getRowClasses(RowHolderBase rowHolder) {
        String[] rowClasses = new String[0];
        if (rowHolder.getRow() instanceof UIDataTableBase) {
            String classes = ((UIDataTableBaserowHolder.getRow()).getRowClasses();
            if (null != classes) {
                rowClasses = classes.split(",");
            }
        }
        return rowClasses;
    }
    protected String[] getColumnClasses(RowHolderBase rowHolder) {
        String[] columnClasses = new String[0];
        if (rowHolder.getRow() instanceof UIDataTableBase) {
            String classes = ((UIDataTableBaserowHolder.getRow()).getColumnClasses();
            if (null != classes) {
                columnClasses = classes.split(",");
            }
        }
        return columnClasses;
    }
    protected String getColumnClass(RowHolderBase rowHolderint columnNumber) {
        String styleClass = "";
        String[] columnClasses = getColumnClasses(rowHolder);
        if (columnClasses.length > columnNumber) {
            styleClass = columnClasses[columnNumber];
        }
        return styleClass;
    }
    protected String getRowClassAttribute(RowHolderBase rowHolder) {
        String rowClass = "";
        if (rowHolder.getRow() instanceof UIDataTableBase) {
            rowClass = ((UIDataTableBaserowHolder.getRow()).getRowClass();
        }
        return rowClass;
    }
    protected String getRowClass(RowHolderBase rowHolder) {
        String styleClass = "";
        String[] rowClasses = getRowClasses(rowHolder);
        if (rowClasses.length > 0) {
            int styleIndex = rowHolder.getCurrentRow() % rowClasses.length;
            styleClass = rowClasses[styleIndex];
        }
        return concatClasses(getRowClassAttribute(rowHolder), styleClass);
    }
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