/*******************************************************************************
* Copyright (c) 2006 Sybase, Inc. and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Sybase, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.pagedesigner.preview;
import java.util.List;
import org.eclipse.jst.jsf.common.ui.internal.logging.Logger;
import org.eclipse.jst.pagedesigner.PDPlugin;
import org.eclipse.jst.pagedesigner.converter.ConvertPosition;
import org.eclipse.jst.pagedesigner.converter.IConverterFactory;
import org.eclipse.jst.pagedesigner.converter.ITagConverter;
import org.eclipse.jst.pagedesigner.dtmanager.DTManager;
import org.eclipse.wst.xml.core.internal.document.InvalidCharacterException;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMDocument;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMText;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;
/**
* @author mengbo
* @version 1.5
*/
public class PreviewConvertContext {
private Logger _log = PDPlugin.getLogger(PreviewConvertContext.class);
private IDOMDocument _destDocument;
/**
* Instantiates an instance for the specified IDOMDocument.
*
* @param destDocument IDOMDocument instance.
*/
public PreviewConvertContext(IDOMDocument destDocument) {
this._destDocument = destDocument;
}
/**
* Converts specified Node for preview.
*
* @param ele Node instance to convert.
* @return Converted Node instance.
*/
public Node previewConvert(Node ele) {
if (ele instanceof Element) {
return previewConvertElement((Element) ele);
} else if (ele instanceof Text) {
return createText((Text) ele);
} else {
// XXX: we'll support other node like doctype etc in the future.
// so they should also be rendered into preview.
return null;
}
}
/**
* @param text
* @return
*/
private Node createText(Text text) {
Text previewText = this._destDocument.createTextNode(text.getData());
try {
((IDOMText) previewText).setSource(((IDOMText) text).getSource());
} catch (InvalidCharacterException e) {
// "Error"
_log.info("PreviewConvertContext.Error.0", e); //$NON-NLS-1$
}
return previewText;
}
/**
* Converts specified Element instance for preview.
*
* @param ele Element instance to be converted.
* @return Converted Node instance.
*/
protected Node previewConvertElement(Element ele) {
ITagConverter converter = createTagConverter(ele);
if (!converter.isVisualByHTML()) {
return null;
}
converter.convertRefresh(null);
Element result = converter.getResultElement();
List children = converter.getChildModeList();
if (children != null) {
for (int i = 0, size = children.size(); i < size; i++) {
Node child = (Node) children.get(i);
if (child != null) {
Node childPreview = previewConvert(child);
if (childPreview != null) {
ConvertPosition position = converter
.getChildVisualPosition(child);
if (position != null) {
/* FIX for bug #179403
// FIXME: not using index here, need fix.
position.getParentNode().appendChild(childPreview);
*/
NodeList childNodes = position.getParentNode().getChildNodes();
if (childNodes.getLength() > position.getIndex()) {
Node item = childNodes.item(position.getIndex());
position.getParentNode().insertBefore(childPreview, item);
} else {
position.getParentNode().appendChild(childPreview);
}
}
}
}
}
}
return result;
}
/**
* @param ele
* @return
*/
private ITagConverter createTagConverter(Element ele) {
return DTManager.getInstance().getTagConverter(ele,
IConverterFactory.MODE_PREVIEW, _destDocument);
}
}