/*
* {{{ header & license
* Copyright (c) 2008 Patrick Wright
*
* This program 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 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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.
* }}}
*/
package org.xhtmlrenderer.test;
import org.w3c.dom.Element;
import org.xhtmlrenderer.extend.ReplacedElement;
import org.xhtmlrenderer.extend.ReplacedElementFactory;
import org.xhtmlrenderer.extend.UserAgentCallback;
import org.xhtmlrenderer.layout.LayoutContext;
import org.xhtmlrenderer.render.BlockBox;
import java.util.*;
import org.xhtmlrenderer.simple.extend.FormSubmissionListener;
/**
* @author patrick
*/
public class DelegatingReplacedElementFactory implements ReplacedElementFactory {
private final List replacers;
private final Map byNameReplacers;
private final List elementReplacements;
public DelegatingReplacedElementFactory() {
replacers = new ArrayList();
elementReplacements = new ArrayList();
byNameReplacers = new HashMap();
}
public ReplacedElement createReplacedElement(final LayoutContext context,
final BlockBox box,
final UserAgentCallback uac,
final int cssWidth,
final int cssHeight
) {
final ElementReplacer nameReplacer = (ElementReplacer) byNameReplacers.get(box.getElement().getNodeName());
if (nameReplacer != null) {
return replaceUsing(context, box, uac, cssWidth, cssHeight, nameReplacer);
}
for (Iterator iterator = replacers.iterator(); iterator.hasNext();) {
ElementReplacer replacer = (ElementReplacer) iterator.next();
if (replacer.accept(context, box.getElement())) {
return replaceUsing(context, box, uac, cssWidth, cssHeight, replacer);
}
}
return null;
}
private ReplacedElement replaceUsing(LayoutContext context, BlockBox box, UserAgentCallback uac, int cssWidth, int cssHeight, ElementReplacer replacer) {
final ReplacedElement re = replacer.replace(context, box, uac, cssWidth, cssHeight);
elementReplacements.add(new ERItem(box.getElement(), re, replacer));
return re;
}
public void reset() {
System.out.println("\n\n***Factory reset()");
elementReplacements.clear();
for (Iterator iterator = replacers.iterator(); iterator.hasNext();) {
ElementReplacer elementReplacer = (ElementReplacer) iterator.next();
elementReplacer.reset();
}
for (Iterator iterator = byNameReplacers.values().iterator(); iterator.hasNext();) {
((ElementReplacer)iterator.next()).reset();
}
}
public void remove(final Element element) {
final int idx = elementReplacements.indexOf(element);
ERItem item = (ERItem) elementReplacements.get(idx);
elementReplacements.remove(idx);
item.elementReplacer.clear(element);
}
public ElementReplacer addReplacer(final ElementReplacer replacer) {
if (replacer.isElementNameMatch()) {
byNameReplacers.put(replacer.getElementNameMatch(), replacer);
} else {
replacers.add(replacer);
}
return replacer;
}
public void removeReplacer(final ElementReplacer replacer) {
replacers.remove(replacer);
}
public void setFormSubmissionListener(FormSubmissionListener listener) {
// maybe there is nothing to do...
}
private class ERItem {
private final Element element;
private final ReplacedElement replacedElement;
private final ElementReplacer elementReplacer;
private ERItem(final Element e, final ReplacedElement re, final ElementReplacer er) {
element = e;
replacedElement = re;
elementReplacer = er;
}
public int hashCode() {
return element.hashCode();
}
public boolean equals(Object o) {
if (o == null) return false;
if (!(o instanceof ERItem)) return false;
ERItem other = (ERItem) o;
return other.element == this.element;
}
}
}