OptionTag.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.html;

import java.util.Locale;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.BodyTagSupport;

import org.apache.struts.util.MessageResources;
import org.apache.struts.util.RequestUtils;
import org.apache.struts.util.ResponseUtils;
import org.squale.welcom.outils.Access;
import org.squale.welcom.outils.WelcomConfigurator;
import org.squale.welcom.struts.util.WRequestUtils;


/**
 * OptionTag
 */
public class OptionTag
    extends BodyTagSupport
{

    /**
     *  
     */
    private static final long serialVersionUID = -571283088885353434L;

    /** Constante */
    protected static final Locale DEFAULT_LOCALE = Locale.getDefault();

    /** messageRessource */
    protected static MessageResources messages =
        MessageResources.getMessageResources( "org.apache.struts.taglib.html.LocalStrings" );

    /** parametre du tag */
    protected String text;

    /** parametre du tag */
    protected String bundle;

    /** parametre du tag */
    protected boolean disabled;

    /** parametre du tag */
    protected String key;

    /** parametre du tag */
    protected String locale;

    /** parametre du tag */
    private String style;

    /** parametre du tag */
    private String styleClass;

    /** parametre du tag */
    protected String value;

    /**
     * Constructeur
     */
    public OptionTag()
    {
        text = null;
        bundle = "org.apache.struts.action.MESSAGE";
        disabled = false;
        key = null;
        locale = "org.apache.struts.action.LOCALE";
        style = null;
        styleClass = null;
        value = null;
    }

    /**
     * @return bundle
     */
    public String getBundle()
    {
        return bundle;
    }

    /**
     * @param pBundle bundle
     */
    public void setBundle( final String pBundle )
    {
        bundle = pBundle;
    }

    /**
     * @return disabled
     */
    public boolean getDisabled()
    {
        return disabled;
    }

    /**
     * @param pDisabled disabled
     */
    public void setDisabled( final boolean pDisabled )
    {
        disabled = pDisabled;
    }

    /**
     * @return key
     */
    public String getKey()
    {
        return key;
    }

    /**
     * @param pKey key
     */
    public void setKey( final String pKey )
    {
        key = pKey;
    }

    /**
     * @return locale
     */
    public String getLocale()
    {
        return locale;
    }

    /**
     * @param pLocale locale
     */
    public void setLocale( final String pLocale )
    {
        locale = pLocale;
    }

    /**
     * @return style
     */
    public String getStyle()
    {
        return style;
    }

    /**
     * @param pStyle style
     */
    public void setStyle( final String pStyle )
    {
        style = pStyle;
    }

    /**
     * @return styleClass
     */
    public String getStyleClass()
    {
        return styleClass;
    }

    /**
     * @param pStyleClass styleClass
     */
    public void setStyleClass( final String pStyleClass )
    {
        styleClass = pStyleClass;
    }

    /**
     * @return value
     */
    public String getValue()
    {
        return value;
    }

    /**
     * @param pValue value
     */
    public void setValue( final String pValue )
    {
        value = pValue;
    }

    /**
     * @see javax.servlet.jsp.tagext.Tag#doStartTag()
     */
    public int doStartTag()
        throws JspException
    {
        text = null;

        return EVAL_BODY_BUFFERED;
    }

    /**
     * @see javax.servlet.jsp.tagext.IterationTag#doAfterBody()
     */
    public int doAfterBody()
        throws JspException
    {
        String newText = super.bodyContent.getString();

        if ( newText != null )
        {
            newText = newText.trim();

            if ( newText.length() > 0 )
            {
                text = newText;
            }
        }

        return SKIP_BODY;
    }

    /**
     * @see javax.servlet.jsp.tagext.Tag#doEndTag()
     */
    public int doEndTag()
        throws JspException
    {
        final SelectTag selectTag =
            (SelectTag) super.pageContext.getAttribute( "org.squale.welcom.taglib.html.SELECT" );

        if ( selectTag == null )
        {
            final JspException e = new JspException( messages.getMessage( "optionTag.select" ) );
            RequestUtils.saveException( super.pageContext, e );
            throw e;
        }

        // String pageAccess = (String) pageContext.getAttribute("access");
        final String pageAccess = selectTag.getResultAccess();
        final StringBuffer results = new StringBuffer();

        if ( selectTag.isForceReadWrite() || ( ( pageAccess != null ) && pageAccess.equals( Access.READWRITE ) )
            || ( pageAccess == null ) )
        {
            results.append( "<option value=\"" );
            results.append( value );
            results.append( "\"" );

            if ( disabled )
            {
                results.append( " disabled=\"disabled\"" );
            }

            if ( selectTag.isMatched( value ) )
            {
                results.append( " selected=\"selected\"" );
            }

            if ( style != null )
            {
                results.append( " style=\"" );
                results.append( style );
                results.append( "\"" );
            }

            if ( styleClass != null )
            {
                results.append( " class=\"" );
                results.append( styleClass );
                results.append( "\"" );
            }

            results.append( ">" );

            final String newText = text();

            if ( newText == null )
            {
                results.append( value );
            }
            else
            {
                results.append( newText );
            }

            results.append( "</option>" );
        }
        else
        {
            if ( selectTag.isMatched( value ) )
            {
                results.append( "<span class=\"normalBold\">" );

                final String newText = text();

                if ( newText != null )
                {
                    results.append( newText );
                }
                else if ( value != null )
                {
                    results.append( value );
                }
                else
                {
                    results.append( WelcomConfigurator.getMessageWithCfgChartePrefix( ".default.char.if.empty" ) );
                }

                results.append( "</span>" );
            }
        }

        ResponseUtils.write( super.pageContext, results.toString() );

        return EVAL_PAGE;
    }

    /**
     * @see javax.servlet.jsp.tagext.Tag#release()
     */
    public void release()
    {
        super.release();
        bundle = "org.apache.struts.action.MESSAGE";
        disabled = false;
        key = null;
        locale = "org.apache.struts.action.LOCALE";
        style = null;
        styleClass = null;
        text = null;
        value = null;
    }

    /**
     * @return le text si il n'est pas nul
     * @throws JspException exception pouvant etre levee
     */
    protected String text()
        throws JspException
    {
        if ( text != null )
        {
            return text;
        }
        else
        {
            return WRequestUtils.message( super.pageContext, key );
        }
    }
}