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com.hfg xml, html, svg, and bioinformatics utility library
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package com.hfg.svg;

import com.hfg.util.StringUtil;
import com.hfg.util.mime.MimeType;
import com.hfg.xml.*;

//------------------------------------------------------------------------------
/**
 * Object representation of an SVG (Scalable Vector Graphics) 'script' tag.
 * 
 * @author J. Alex Taylor, hairyfatguy.com
 * 
 */
//------------------------------------------------------------------------------
// com.hfg XML/HTML Coding Library
//
// This library 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 library 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 library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
// J. Alex Taylor, President, Founder, CEO, COO, CFO, OOPS hairyfatguy.com
// [email protected]
//------------------------------------------------------------------------------

public class SvgScript extends AbstractSvgNode implements SvgNode
{
   private boolean  mUseCDATA = true;
   private XMLCDATA mCDATA;

   //##########################################################################
   // CONSTRUCTORS
   //##########################################################################

   //---------------------------------------------------------------------------
   public SvgScript()
   {
      super(SVG.script);
   }

   //--------------------------------------------------------------------------
   public SvgScript(MimeType inType)
   {
      this();
      setType(inType);
   }

   //--------------------------------------------------------------------------
   public SvgScript(String inContent)
   {
      this();
      addContent(inContent);
   }

   //--------------------------------------------------------------------------
   public SvgScript(CharSequence inContent)
   {
      this();
      addContent(inContent);
   }

   //---------------------------------------------------------------------------
   public SvgScript(XMLTag inXMLTag)
   {
      this();
      initFromXMLTag(inXMLTag);
   }

   //##########################################################################
   // PUBLIC METHODS
   //##########################################################################


   //--------------------------------------------------------------------------
   public SvgScript setHref(String inURL)
   {
      XMLAttribute attr = new XMLAttribute(SvgAttr.href, inURL);
      attr.setNamespace(XMLNamespace.getNamespaceViaPrefix("xlink"));
      setAttribute(attr);
      return this;
   }

   //--------------------------------------------------------------------------
   /**
    Sets the script type.
    */
   public SvgScript setType(MimeType inValue)
   {
      return setType(inValue.toString());
   }

   //--------------------------------------------------------------------------
   /**
    Sets the script type.
    */
   public SvgScript setType(String inValue)
   {
      setAttribute(SvgAttr.type, inValue);

      if (inValue != null
            && inValue.equalsIgnoreCase(MimeType.TEXT_JAVASCRIPT.toString()))
      {
         // TODO: Is this necessary?
         getCDATA().setHideWithCommentsForLegacyBrowsers(true);
      }

      return this;
   }

   //--------------------------------------------------------------------------
   /**
    Defaults to true.
    */
   public SvgScript useCDATA(boolean inValue)
   {
      if (inValue != mUseCDATA)
      {
         String content = getContent();
         mUseCDATA = inValue;

         if (! mUseCDATA)
         {
            clearSubtags();
            mCDATA = null;
         }

         setContent(content);
      }

      return this;
   }

   //--------------------------------------------------------------------------
   @Override
   public SvgScript setContent(CharSequence inContent)
   {
      clearContent();

      addContent(inContent);

      return this;
   }

   //--------------------------------------------------------------------------
   public SvgScript appendln(CharSequence inContent)
   {
      addContent(inContent + "\n");
      return this;
   }

   //--------------------------------------------------------------------------
   public void addSubtag(XMLCDATA inCDATA)
   {
      mUseCDATA = true;
      super.addSubtag(inCDATA);
   }

   //--------------------------------------------------------------------------
   @Override
   public SvgScript addContent(CharSequence inContent)
   {
      if (StringUtil.isSet(inContent))
      {
         if (mUseCDATA)
         {
            getCDATA().addContent(inContent);
         }
         else
         {
            super.addContentWithoutEscaping(inContent);
         }
      }
      else
      {
         super.addContent(inContent);
      }

      return this;
   }

   //--------------------------------------------------------------------------
   @Override
   public void clearContent()
   {
      if (mCDATA != null) mCDATA.clearContent();
      super.clearContent();
   }

   //--------------------------------------------------------------------------
   @Override
   public boolean hasContent()
   {
      boolean result = true;
      if (mUseCDATA)
      {
         result = mCDATA != null && mCDATA.hasContent();
      }
      else
      {
         result = super.hasContent();
      }

      return result;
   }

   //--------------------------------------------------------------------------
   @Override
   public String getContent()
   {
      String result = "";
      if (mUseCDATA)
      {
         if (mCDATA != null) result = mCDATA.getContent();
      }
      else
      {
         result = super.getContent();
      }

      return result;
   }
   //---------------------------------------------------------------------------
   @Override
   protected void initFromXMLTag(XMLTag inXMLTag)
   {
      mUseCDATA = false;
      super.initFromXMLTag(inXMLTag);
   }

   //##########################################################################
   // PRIVATE METHODS
   //##########################################################################

   //--------------------------------------------------------------------------
   private XMLCDATA getCDATA()
   {
      if (null == mCDATA)
      {
         XMLComment commentTag = new XMLComment("//");
         addSubtag(commentTag);
         mCDATA = new XMLCDATA("\n");
         addSubtag(mCDATA);
      }

      return mCDATA;
   }
}