MyHTMLEditorKit.java

/***********************************************************************
 *
 * $CVSHeader$
 *
 * This file is part of WebScarab, an Open Web Application Security
 * Project utility. For details, please see http://www.owasp.org/
 *
 * Copyright (c) 2002 - 2004 Rogan Dawes
 *
 * 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.
 *
 * Getting Source
 * ==============
 *
 * Source for this application is maintained at Sourceforge.net, a
 * repository for free software projects.
 * 
 * For details, please see http://www.sourceforge.net/projects/owasp
 *
 */

/*
 * MyHTMLEditorKit.java
 *
 * Created on November 8, 2003, 12:37 PM
 */

package org.owasp.webscarab.ui.swing.editors;

import javax.swing.text.html.HTMLEditorKit;
import javax.swing.text.ViewFactory;
import javax.swing.text.Element;
import javax.swing.text.View;
import javax.swing.text.StyleConstants;
import javax.swing.text.html.HTML;
import javax.swing.text.Position;
import javax.swing.text.BadLocationException;

import java.awt.Shape;
import java.awt.Rectangle;
import java.awt.Graphics;

/** We need to override the Default HTMLEditorKit to stop it from trying to follow
 * embedded links, such as framesets. This is because we don't know the
 * base URL of the HTML content we are rendering, and besides, we probably don't
 * want to go fetching embedded frames, which could possibly affect things on the
 * server. The ideal would probably be to get the most recent conversation for the
 * required URL from our local cache, but that becomes very intricate, and this is
 * probably good enough for now.
 * @author rdawes
 */
public class MyHTMLEditorKit extends javax.swing.text.html.HTMLEditorKit {
    /**
	 * 
	 */
	private static final long serialVersionUID = 2375665246506547467L;
	private static final ViewFactory defaultFactory = new MyHTMLFactory();
    
    public ViewFactory getViewFactory() {
	return defaultFactory;
    }
    
    private static class MyHTMLFactory extends HTMLEditorKit.HTMLFactory {
        public View create(Element elem) {
            Object o = elem.getAttributes().getAttribute(StyleConstants.NameAttribute);
            if (o instanceof HTML.Tag) {
                HTML.Tag kind = (HTML.Tag) o;
                if (kind == HTML.Tag.FRAME || 
                    kind == HTML.Tag.FRAMESET || 
                    kind == HTML.Tag.OBJECT || 
                    kind == HTML.Tag.MAP ||
                    kind == HTML.Tag.IMG ||
                    kind == HTML.Tag.LINK ||
                    kind == HTML.Tag.SCRIPT ||
                    kind == HTML.Tag.APPLET) {
                    return new NoView(elem);
                }
            }
            return super.create(elem);
        }
    }
    
    private static class NoView extends View {
        public NoView(Element elem) {
            super(elem);
            setSize(0.0f, 0.0f);
        }

        public int viewToModel(float fx, float fy, Shape a, Position.Bias[] bias) {
            return 0;
        }
        
        public Shape modelToView(int pos, Shape a, Position.Bias b) throws BadLocationException {
            return new Rectangle(0, 0);
        }

        public float getPreferredSpan(int axis) {
            return 0.0f;
        }

        public void paint(Graphics g, Shape allocation) {
        }
    }

}