/* 
    JSPWiki - a JSP-based WikiWiki clone.

    Copyright (C) 2002 Janne Jalkanen (Janne.Jalkanen@iki.fi)

    This program 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 program 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 program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package brushed.jspwiki.visioplugin;

import java.util.*;
import com.ecyrd.jspwiki.*;
import com.ecyrd.jspwiki.plugin.*;
import com.ecyrd.jspwiki.attachment.AttachmentManager;
import com.ecyrd.jspwiki.attachment.Attachment;
import com.ecyrd.jspwiki.providers.ProviderException;

/**
 *  Provides an visio plugin for inline expansion of a Microsoft VISIO attachment
 *  Source code inspired by the JSPWiki Image plugin.
 *
 *  @author Dirk Frederickx
 *  @since 2.1.86
 */

public class Visio
    implements WikiPlugin
{
    public static final String PARAM_SRC      = "src";
    public static final String PARAM_HEIGHT   = "height";
    public static final String PARAM_WIDTH    = "width";
    public static final String PARAM_STYLE    = "style";

    public static final String PARAM_BC  = "backColor";
    public static final String PARAM_AE  = "alertsEnabled";
    public static final String PARAM_CME = "contextMenuEnabled";
    public static final String PARAM_GV  = "gridVisible";
    public static final String PARAM_HQR = "highQualityRender";
    public static final String PARAM_PC  = "pageColor";
    public static final String PARAM_PV  = "pageVisible";
    public static final String PARAM_PTV = "pageTabsVisible";
    public static final String PARAM_PDE = "propertyDialogEnabled";
    public static final String PARAM_SV  = "scrollbarsVisible";
    public static final String PARAM_SGV = "sizeGripVisible";
    public static final String PARAM_TV  = "toolbarVisible";
    public static final String PARAM_CPI = "currentPageIndex";
    public static final String PARAM_ZM  = "zoom";

    /**
     *  This method is used to clean away things like quotation marks which
     *  a malicious user could use to stop processing and insert javascript.
     */
    private static final String getCleanParameter( Map params, String paramId )
    {
        return TextUtil.replaceEntities( (String) params.get( paramId ) );
    }

    public String execute( WikiContext context, Map params )
        throws PluginException
    {
        WikiEngine engine = context.getEngine();
        String src     = getCleanParameter( params, PARAM_SRC );
        String ht      = getCleanParameter( params, PARAM_HEIGHT );
        String wt      = getCleanParameter( params, PARAM_WIDTH );
        String style   = getCleanParameter( params, PARAM_STYLE );

        String bc  = getCleanParameter( params, PARAM_BC   );
        String ae  = getCleanParameter( params, PARAM_AE   );
        String cme = getCleanParameter( params, PARAM_CME  );
        String gv  = getCleanParameter( params, PARAM_GV   );
        String hqr = getCleanParameter( params, PARAM_HQR  );
        String pc  = getCleanParameter( params, PARAM_PC   );
        String pv  = getCleanParameter( params, PARAM_PV   );
        String ptv = getCleanParameter( params, PARAM_PTV  );
        String pde = getCleanParameter( params, PARAM_PDE  );
        String sv  = getCleanParameter( params, PARAM_SV   );
        String sgv = getCleanParameter( params, PARAM_SGV  );
        String tv  = getCleanParameter( params, PARAM_TV   );
        String cpi = getCleanParameter( params, PARAM_CPI  );
        String zm  = getCleanParameter( params, PARAM_ZM   );

        if( src == null )
        {
            throw new PluginException("Parameter 'src' is required for Visio plugin");
        }

        try
        {
            AttachmentManager mgr = engine.getAttachmentManager();
            Attachment        att = mgr.getAttachmentInfo( context, src );

            if( att != null )
            {
                src = engine.getAttachmentURL(att.getName());
            }
        }
        catch( ProviderException e )
        {
            throw new PluginException( "Attachment info failed: "+e.getMessage() );
        }

        StringBuffer result = new StringBuffer();

        result.append( "<div " );
        if( style != null ) result.append(" style=\""+style+"\"");
        result.append( ">\n" );

		//default values
        if (ht  == null ) ht  = "100%";
        if (wt  == null ) wt  = "100%";
        //if (bc  == null ) bc  = "16777200";
        if (ae  == null ) ae  = "1";
        if (cme == null ) cme = "1";
        if (gv  == null ) gv  = "0";
        if (hqr == null ) hqr = "1";
        //if (pc  == null ) pc  = "16777215";
        if (pv  == null ) pv  = "1";
        if (ptv == null ) ptv = "0";
        if (pde == null ) pde = "1";
        if (sv  == null ) sv  = "0";
        if (sgv == null ) sgv = "1";
        if (tv  == null ) tv  = "0";
        if (cpi == null ) cpi = "0";
        if (zm  == null ) zm  = "-1";
        
        
        result.append( "<object classid=\"clsid:279D6C9A-652E-4833-BEFC-312CA8887857\" \n" );
        result.append( "  codebase=\"http://download.microsoft.com/download/visiostandard2003/vviewer/2003/w2kxp/en-us/vviewer.exe\" \n" );
        result.append( "  id=\"Viewer1\""); 
        result.append( "  width=\""+wt+"\""); 
        result.append( "  height=\""+ht+"\" >\n");

        result.append( "  <param name=\"SRC\"                   value=\""+src+"\">\n" );
        if( bc != null) 
        {
        result.append( "  <param name=\"BackColor\"             value=\""+bc +"\">\n" );
        }
        result.append( "  <param name=\"AlertsEnabled\"         value=\""+ae +"\">\n" );
        result.append( "  <param name=\"ContextMenuEnabled\"    value=\""+cme+"\">\n" );
        result.append( "  <param name=\"GridVisible\"           value=\""+gv +"\">\n" );
        result.append( "  <param name=\"HighQualityRender\"     value=\""+hqr+"\">\n" );
        if( pc != null)
        {
        result.append( "  <param name=\"PageColor\"             value=\""+pc +"\">\n" );
        }
        result.append( "  <param name=\"PageVisible\"           value=\""+pv +"\">\n" );
        result.append( "  <param name=\"PageTabsVisible\"       value=\""+ptv+"\">\n" );
        result.append( "  <param name=\"PropertyDialogEnabled\" value=\""+pde+"\">\n" );
        result.append( "  <param name=\"ScrollbarsVisible\"     value=\""+sv +"\">\n" );
        result.append( "  <param name=\"SizeGripVisible\"       value=\""+sgv+"\">\n" );
        result.append( "  <param name=\"ToolbarVisible\"        value=\""+tv +"\">\n" );
        result.append( "  <param name=\"CurrentPageIndex\"      value=\""+cpi+"\">\n" );
        result.append( "  <param name=\"Zoom\"                  value=\""+zm +"\">\n" );
        result.append( "The JSPWiki Visio plugin for " + src + " only works with Internet Explorer and Microsoft Visio Viewer 2003 available <a href=\"http://www.microsoft.com/downloads/details.aspx?FamilyID=3fb3bd5c-fed1-46cf-bd53-da23635ab2df&DisplayLang=en\">here</a>.\n" );
        result.append( "</object> \n" );
         
        result.append( "</div> \n" ); //added div closure

        return result.toString();
    }
}