// BlogBridge -- RSS feed reader, manager, and web based service
// Copyright (C) 2002-2006 by R. Pito Salas
//
// This program is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free Software Foundation;
// either version 2 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 General Public License for more details.
//
// You should have received a copy of the GNU 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
//
// Contact: R. Pito Salas
// mailto:pitosalas@users.sourceforge.net
// More information: about BlogBridge
// http://www.blogbridge.com
// http://sourceforge.net/projects/blogbridge
//
// $Id: CustomHTMLEditorKit.java,v 1.9 2007/07/06 12:14:04 spyromus Exp $
//
package com.salas.bb.utils.uif.html;
import com.jgoodies.uif.util.ResourceUtils;
import com.salas.bb.utils.ResourceID;
import com.salas.bb.utils.swinghtml.CustomHTMLDocument;
import javax.swing.text.Document;
import javax.swing.text.ViewFactory;
import javax.swing.text.html.HTMLDocument;
import javax.swing.text.html.StyleSheet;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
/**
* Custom HTML editor kit giving us custom view factory and document model.
*/
public class CustomHTMLEditorKit extends LinkTrackHTMLEditorKit
{
/**
* A factory that will return our custom <code>View</code> classes for relevant elements.
*/
private CustomHTMLFactory factory;
/**
* The custom styles for displaying HTML articles.
*/
private static StyleSheet defaultStyles;
/** Resource ID of the stylesheet. */
private String stylesheetResourceID;
/** TRUE to use default styles. */
private final boolean useDefaultStyles;
/** Individual styles used when useDefaultStyles is FALSE. */
private static StyleSheet styles;
/**
* Creates HTML editor kit.
*/
public CustomHTMLEditorKit()
{
this(ResourceID.URL_DEFAULT_STYLESHEET);
}
/**
* Creates HTML editor kit.
*
* @param stylesheetResourceID stylesheet resource ID.
*/
public CustomHTMLEditorKit(String stylesheetResourceID)
{
this(stylesheetResourceID, true);
}
/**
* Creates HTML editor kit.
*
* @param stylesheetResourceID stylesheet resource ID.
* @param useDefaultStyles <code>TRUE</code> to use default article styles.
*/
public CustomHTMLEditorKit(String stylesheetResourceID, boolean useDefaultStyles)
{
this.useDefaultStyles = useDefaultStyles;
this.stylesheetResourceID = stylesheetResourceID;
factory = new CustomHTMLFactory();
}
/**
* Fetch a factory that is suitable for producing
* views of any models that are produced by this
* kit.
*
* @return the factory
*/
public ViewFactory getViewFactory()
{
return factory;
}
/**
* Create an uninitialized text storage model
* that is appropriate for this type of editor.
*
* @return the model
*/
public Document createDefaultDocument()
{
StyleSheet styles = getStyleSheet();
StyleSheet ss = new StyleSheet();
ss.addStyleSheet(styles);
HTMLDocument doc = new CustomHTMLDocument(ss);
doc.setParser(getParser());
doc.setAsynchronousLoadPriority(4);
doc.setTokenThreshold(100);
return doc;
}
/**
* Gets the set of styles to be used to render HTML elements.
*
* @return A <code>StyleSheet</code> containing the default HTML element styles.
*/
public StyleSheet getStyleSheet()
{
StyleSheet style;
if (useDefaultStyles)
{
if (defaultStyles == null) defaultStyles = loadStyles();
style = defaultStyles;
} else
{
if (styles == null) styles = loadStyles();
style = styles;
}
return style;
}
/**
* Loads styles.
*
* @return styles.
*/
protected StyleSheet loadStyles()
{
StyleSheet styles = new StyleSheet();
styles.addStyleSheet(super.getStyleSheet());
try
{
String path = ResourceUtils.getString(stylesheetResourceID);
InputStream is = ResourceUtils.getInputStream(path);
Reader r = new BufferedReader(new InputStreamReader(is));
styles.loadRules(r, null);
r.close();
} catch (Throwable e)
{
// on error we simply have no styles... the html
// will look mighty wrong but still function.
}
return styles;
}
}