CheckBoxTag.java

/**
 * Copyright (C) 2008-2010, Squale Project - http://www.squale.org
 *
 * This file is part of Squale.
 *
 * Squale 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 3 of the
 * License, or any later version.
 *
 * Squale 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 Lesser General Public License
 * along with Squale.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.squale.welcom.taglib.field;

import javax.servlet.jsp.JspException;

import org.apache.struts.util.RequestUtils;
import org.apache.struts.util.ResponseUtils;

/**
 * @author M327837 Idem Tag CheckBox Struts, ajout seulement de la proprit�t� unselectvalue
 */
public class CheckBoxTag
    extends org.apache.struts.taglib.html.CheckboxTag
{

    /**
     * 
     */
    private static final long serialVersionUID = -8171403436103989961L;

    /** Valeur si check box pas selectionn� */
    private String unSelectValue = null;

    /**
     * Generate the required input tag.
     * <p>
     * Support for indexed property since Struts 1.1
     * 
     * @exception JspException if a JSP exception has occurred
     * @return falg pour continuer
     */
    public int doStartTag()
        throws JspException
    {

        // Create an appropriate "input" element based on our parameters
        final StringBuffer results = new StringBuffer( "<input type=\"checkbox\"" );
        results.append( " name=\"" );
        // * @since Struts 1.1
        if ( indexed )
        {
            prepareIndex( results, name );
        }
        results.append( this.property );
        results.append( "\"" );
        if ( accesskey != null )
        {
            results.append( " accesskey=\"" );
            results.append( accesskey );
            results.append( "\"" );
        }
        if ( tabindex != null )
        {
            results.append( " tabindex=\"" );
            results.append( tabindex );
            results.append( "\"" );
        }
        /** *** MODIF ***** */
        if ( unSelectValue != null )
        {
            results.append( " unSelectValue=\"" );
            results.append( unSelectValue );
            results.append( "\"" );
        }
        /** *** END MODIF ***** */
        results.append( " value=\"" );
        if ( value == null )
        {
            results.append( "on" );
        }
        else
        {
            results.append( value );
        }
        results.append( "\"" );
        Object result = RequestUtils.lookup( pageContext, name, property, null );
        if ( result == null )
        {
            result = "";
        }
        if ( !( result instanceof String ) )
        {
            result = result.toString();
        }
        final String checked = (String) result;
        if ( checked.equalsIgnoreCase( value ) || checked.equalsIgnoreCase( "true" )
            || checked.equalsIgnoreCase( "yes" ) || checked.equalsIgnoreCase( "on" ) )
        {
            results.append( " checked=\"checked\"" );
        }
        results.append( prepareEventHandlers() );
        results.append( prepareStyles() );
        results.append( getElementClose() );

        // Print this field to our output writer
        ResponseUtils.write( pageContext, results.toString() );

        // Continue processing this page
        this.text = null;
        return ( EVAL_BODY_INCLUDE );

    }

    /**
     * @return accesseur
     */
    public String getUnSelectValue()
    {
        return unSelectValue;
    }

    /**
     * @param string accesseur
     */
    public void setUnSelectValue( final String string )
    {
        unSelectValue = string;
    }

}