/*
* TV-Browser
* Copyright (C) 04-2003 Martin Oberhauser (martin_oat@yahoo.de)
*
* 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.
*
* CVS information:
* $RCSfile$
* $Source$
* $Date: 2010-06-28 19:33:48 +0200 (Mon, 28 Jun 2010) $
* $Author: bananeweizen $
* $Revision: 6662 $
*/
package util.ui.html;
import java.awt.Component;
import java.util.ArrayList;
import java.util.Vector;
import javax.swing.text.MutableAttributeSet;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.StyleConstants;
import javax.swing.text.html.HTML;
import javax.swing.text.html.HTMLDocument;
import javax.swing.text.html.HTMLEditorKit;
import javax.swing.text.html.StyleSheet;
/**
* A HTML document that supports the integration von {@link Component}s.
*
* @author Til Schneider, www.murfman.de
*/
public class ExtendedHTMLDocument extends HTMLDocument {
protected static final HTML.Tag COMP_TAG = new HTML.Tag("comp") {};
protected ArrayList<Component> mKnownCompList;
public ExtendedHTMLDocument(StyleSheet ss) {
super(ss);
}
public String createCompTag(Component comp) {
if (mKnownCompList == null) {
mKnownCompList = new ArrayList<Component>();
}
int index = mKnownCompList.indexOf(comp);
if (index == -1) {
mKnownCompList.add(comp);
index = mKnownCompList.size() - 1;
}
return "<"+COMP_TAG.toString()+" index=\"" + index + "\">";
}
public HTMLEditorKit.ParserCallback getReader(int pos) {
return getReader(pos, 0, 0, null);
}
public HTMLEditorKit.ParserCallback getReader(int pos, int popDepth,
int pushDepth, HTML.Tag insertTag)
{
return new ExtendedHTMLReader(pos, popDepth, pushDepth, insertTag);
}
protected void handleCompTag(HTML.Tag tag, MutableAttributeSet attributeSet,
Vector<ElementSpec> parseBuffer)
{
if (mKnownCompList == null) {
return;
}
String indexAsString = (String) attributeSet.getAttribute("index");
if (indexAsString != null) {
try {
int index = Integer.parseInt(indexAsString);
Component comp = mKnownCompList.get(index);
addComponent(parseBuffer, comp);
}
catch (Exception exc) {
exc.printStackTrace();
}
}
}
protected void addComponent(Vector<ElementSpec> parseBuffer, Component comp) {
SimpleAttributeSet sas = new SimpleAttributeSet();
sas.addAttribute(StyleConstants.ComponentAttribute, comp);
sas.addAttribute(StyleConstants.NameAttribute, StyleConstants.ComponentElementName);
ElementSpec es = new ElementSpec(sas.copyAttributes(),
ElementSpec.ContentType, new char[] { ' ' },
0, 1);
parseBuffer.addElement(es);
}
// inner class ExtendedHTMLReader
protected class ExtendedHTMLReader extends HTMLDocument.HTMLReader {
private TagAction mCompAction;
public ExtendedHTMLReader(int offset, int popDepth, int pushDepth,
HTML.Tag insertTag)
{
super(offset, popDepth, pushDepth, insertTag);
mCompAction = new TagAction() {
public void start(HTML.Tag tag, MutableAttributeSet attributeSet) {
Vector<ElementSpec> pBuffer = ExtendedHTMLReader.super.parseBuffer;
handleCompTag(tag, attributeSet, pBuffer);
}
};
registerTag(COMP_TAG, mCompAction);
}
/**
* Callback from the parser. Route to the appropriate
* handler for the tag.
*/
public void handleSimpleTag(HTML.Tag tag, MutableAttributeSet attributeSet, int pos) {
if (tag.toString().equals(COMP_TAG.toString())) {
mCompAction.start(tag, attributeSet);
} else {
super.handleSimpleTag(tag, attributeSet, pos);
}
}
}
}