/*

  * $Id: HistoryUtilities.java,v 1.12 2007/09/26 12:29:29 edankert Exp $

  *

  * The contents of this file are subject to the Mozilla Public License 

  * Version 1.1 (the "License"); you may not use this file except in 

  * compliance with the License. You may obtain a copy of the License at 

  * http://www.mozilla.org/MPL/ 

  *

  * Software distributed under the License is distributed on an "AS IS" basis, 

  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License 

  * for the specific language governing rights and limitations under the License.

  *

  * The Original Code is XML Hammer code. (org.xmlhammer.*)

  *

  * The Initial Developer of the Original Code is Edwin Dankert. Portions created 

  * by the Initial Developer are Copyright (C) 2005 - 2006 the Initial Developer. 

  * All Rights Reserved.

  *

  * Contributor(s): Edwin Dankert <edankert@gmail.com>

  */

 package org.xmlhammer.gui.history;

 import java.net.URI;

 import java.util.List;

 import org.bounce.util.URIUtils;

 import org.xmlhammer.PreferencesHandler;

 import org.xmlhammer.model.preferences.HistoryList;

 public class HistoryUtilities {

     private static HistoryUtilities utils = null;

     private HistoryListModel searches = null;

     private HistoryListModel sources = null;

     private HistoryListModel results = null;

     private HistoryListModel schemas = null;

     private HistoryListModel patterns = null;

     private HistoryListModel expressions = null;

     private HistoryListModel directories = null;

     private HistoryListModel extensions = null;

     private HistoryListModel stylesheets = null;

     private HistoryListModel doctypeSystems = null;

     private HistoryListModel doctypePublics = null;

     private HistoryListModel cdataSectionElements = null;

     private HistoryListModel medias = null;

     private HistoryListModel titles = null;

     private HistoryListModel charsets = null;

 //    private DefaultListModel LookIn = null;

     private HistoryUtilities() {

     }

     public static HistoryUtilities getInstance() {

         if ( utils == null) {

             utils = new HistoryUtilities();

         }

         return utils;

     }

     // Add a recently opened project.

     public void addOpenedProject(URI uri) {

         if ( uri != null) {

             add(PreferencesHandler.getInstance().getPreferences().getHistory().getProjects(), URIUtils.toString(uri));

         }

     }

     private void add(HistoryList hist, String value) {

         if (value != null && value.length() > 0) {

             List<String> list = hist.getValue();

             for (String item : list) {

                 if (item.equals(value)) {

                     list.remove(item);

                     break;

                 }

             }

             list.add(0, value);

             if (hist.getSize() < list.size()) {

                 // remove the last item!

                 list.remove(list.size()-1);

             }

         }

     }

 //    private void add( DefaultListModel model, HistoryList hist, String value) {

 //        if ( value != null && value.length() > 0) {

 //            List<String> list = hist.getValue();

 //            

 //            for ( String item : list) {

 //                if ( item.equals( value)) {

 //                    list.remove( item);

 //                    model.removeElement( value);

 //                    break;

 //                }

 //            }

 //            

 //            if ( hist.getSize() < list.size()) {

 //                // remove the last item!

 //                String last = list.get( list.size()-1);

 //    

 //                model.removeElement(last);

 //                list.remove(last);

 //            }

 //            

 //            list.add( 0, value);

 //            model.add( 0, value);

 //        }

 //    }

 //    // Add a recently opened URI.

 //    public void addInput( URI uri) {

 //        if ( uri != null) {

 //            add( (DefaultListModel)getInputsModel(), preferences.getHistory().getInputs(), uri.toString());

 //        }

 //    }

 //

 //    // Add a recently opened URI.

 //    public void addSchema( URI uri) {

 //        if ( uri != null) {

 //            add( (DefaultListModel)getSchemasModel(), preferences.getHistory().getSchemas(), uri.toString());

 //        }

 //    }

 //

 //    public void addDirectory( String uri) {

 //        add( (DefaultListModel)getDirectories(), preferences.getHistory().getDirectories(), uri);

 //    }

 //

 //    // Add a pattern.

 //    public void addPattern( String pattern) {

 //        add( (DefaultListModel)getPatterns(), preferences.getHistory().getPatterns(), pattern);

 //    }

 //

 //    // Add a expression.

 //    public void addExpression( String expression) {

 //        add( (DefaultListModel)getExpressions(), preferences.getHistory().getExpressions(), expression);

 //    }

     public HistoryListModel getSearches() {

         if (searches == null) {

             searches = createModel(PreferencesHandler.getInstance().getPreferences().getHistory().getSearches());

         }

         return searches;

     }

     public HistoryListModel getSourcesModel() {

         if ( sources == null) {

             sources = createModel(PreferencesHandler.getInstance().getPreferences().getHistory().getSources());

         }

         return sources;

     }

     public HistoryListModel getResultsModel() {

         if (results == null) {

             results = createModel(PreferencesHandler.getInstance().getPreferences().getHistory().getResults());

         }

         return results;

     }

     public HistoryListModel getSchemasModel() {

         if ( schemas == null) {

             schemas = createModel(PreferencesHandler.getInstance().getPreferences().getHistory().getSchemas());

         }

         return schemas;

     }

     public HistoryListModel getExpressions() {

         if ( expressions == null) {

             expressions = createModel(PreferencesHandler.getInstance().getPreferences().getHistory().getExpressions());

         }

         return expressions;

     }

     public HistoryListModel getPatterns() {

         if ( patterns == null) {

             patterns = createModel(PreferencesHandler.getInstance().getPreferences().getHistory().getPatterns());

         }

         return patterns;

     }

     public HistoryListModel getDirectories() {

         if ( directories == null) {

             directories = createModel(PreferencesHandler.getInstance().getPreferences().getHistory().getDirectories());

         }

         return directories;

     }

     public HistoryListModel getExtensions() {

         if ( extensions == null) {

             extensions = createModel(PreferencesHandler.getInstance().getPreferences().getHistory().getExtensions());

         }

         return extensions;

     }

     public HistoryListModel getStylesheets() {

         if (stylesheets == null) {

             stylesheets = createModel(PreferencesHandler.getInstance().getPreferences().getHistory().getStylesheets());

         }

         return stylesheets;

     }

     public HistoryListModel getDoctypeSystems() {

         if (doctypeSystems == null) {

             doctypeSystems = createModel(PreferencesHandler.getInstance().getPreferences().getHistory().getDoctypeSystems());

         }

         return doctypeSystems;

     }

     public HistoryListModel getDoctypePublics() {

         if (doctypePublics == null) {

             doctypePublics = createModel(PreferencesHandler.getInstance().getPreferences().getHistory().getDoctypePublics());

         }

         return doctypePublics;

     }

     public HistoryListModel getCDataSectionElements() {

         if (cdataSectionElements == null) {

             cdataSectionElements = createModel(PreferencesHandler.getInstance().getPreferences().getHistory().getCdataSectionElements());

         }

         return cdataSectionElements;

     }

     public HistoryListModel getMedias() {

         if (medias == null) {

             medias = createModel(PreferencesHandler.getInstance().getPreferences().getHistory().getMedias());

         }

         return medias;

     }

     public HistoryListModel getTitles() {

         if (titles == null) {

             titles = createModel(PreferencesHandler.getInstance().getPreferences().getHistory().getTitles());

         }

         return titles;

     }

     public HistoryListModel getCharsets() {

         if (charsets == null) {

             charsets = createModel(PreferencesHandler.getInstance().getPreferences().getHistory().getCharsets());

         }

         return charsets;

     }

     private HistoryListModel createModel( HistoryList hist) {

         return new HistoryListModel( hist);

     }

  }