/*******************************************************************************
* 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.converter;
import org.eclipse.jst.pagedesigner.IHTMLConstants;
import org.eclipse.jst.pagedesigner.utils.DOMUtil;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.Text;
/**
* This tag converter is for those unsupported jsp tags.
*
* @author mengbo
* @version 1.5
*/
public class DefaultUnknownTagConverter extends AbstractTagConverter {
private static final int NO_ELEMENT = 0;
private static final int TABLE_ELEMENT = 1;
private static final int TABLE_ROW_ELEMENT = 2;
/**
* @param host
* @param mode
*/
public DefaultUnknownTagConverter(Element host, int mode) {
super(host);
setMode(mode);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jst.pagedesigner.converter.AbstractTagConverter#doConvertRefresh()
*/
protected Element doConvertRefresh() {
Element hostEle = this.getHostElement();
// Test to see if the src element is contained in an
// element that renders as a table. If so, render this
// element accordingly as content in the table.
// This is done to address the use case where tags
// (such as JSTL) are used in collaboration within HTML
// tables. The CSS layout for tables does not handle
// invalid HTML so this change tries to produce valid
// HTML. If the table layout code gets updated to handle
// invalid HTML tables, then this code can be removed.
// See https://bugs.eclipse.org/bugs/show_bug.cgi?id=253974
Node containingElement = ConverterUtil.findConvertedParentElement(hostEle, null);
String name = null;
if (containingElement != null) {
name = containingElement.getNodeName();
}
if (name != null) {
if (IHTMLConstants.TAG_TABLE.equalsIgnoreCase(name)
|| IHTMLConstants.TAG_TBODY.equalsIgnoreCase(name)
|| IHTMLConstants.TAG_TFOOT.equalsIgnoreCase(name)) {
// this element is contained in a table, tbody or tfoot
return renderAsTableRow(hostEle, false, TABLE_ELEMENT);
} else if (IHTMLConstants.TAG_THEAD.equalsIgnoreCase(name)) {
// this element is contained in a thead
return renderAsTableRow(hostEle, true, TABLE_ELEMENT);
} else if (IHTMLConstants.TAG_TR.equalsIgnoreCase(name)) {
// this element is contained in a tr
return renderAsTableCell(hostEle, false, TABLE_ROW_ELEMENT);
}
}
// Otherwise, use the default rendering for an unknown tag
return renderDefault(hostEle, NO_ELEMENT);
}
private Element renderDefault(Element hostEle, int tableElement) {
// rendering for host element not contained in a table
Element divEle = createElement("div"); //$NON-NLS-1$
String style = DOMUtil.getAttributeIgnoreCase(hostEle, "style"); //$NON-NLS-1$
if (style == null) {
style = ""; //$NON-NLS-1$
}
if (style.length() > 0 && !style.endsWith(";")) { //$NON-NLS-1$
style += ";"; //$NON-NLS-1$
}
style += "border: none; padding: 0; margin: 0"; //$NON-NLS-1$
divEle.setAttribute("style", style); //$NON-NLS-1$
Element div2 = createElement("span"); //$NON-NLS-1$
String border = isPreviewMode() ? "border-style: solid;border-width: 1px" : "border:none"; //$NON-NLS-1$ //$NON-NLS-2$
div2.setAttribute("style", "background-color: white;"+border+";color:gray"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
Text txt = createText(hostEle.getTagName());
div2.appendChild(txt);
divEle.appendChild(div2);
Element childContainer = null;
switch (tableElement) {
case TABLE_ELEMENT:
childContainer = createElement(IHTMLConstants.TAG_TABLE);
copyChildren(getHostElement(), childContainer);
break;
case TABLE_ROW_ELEMENT:
childContainer = createElement(IHTMLConstants.TAG_TABLE);
Element trElem = createElement(IHTMLConstants.TAG_TR);
childContainer.appendChild(trElem);
copyChildren(getHostElement(), trElem);
break;
case NO_ELEMENT:
default:
childContainer = createElement("div"); //$NON-NLS-1$
childContainer.setAttribute("style", "margin: 0; padding: 0"); //$NON-NLS-1$ //$NON-NLS-2$
copyChildren(getHostElement(), childContainer);
break;
}
divEle.appendChild(childContainer);
return divEle;
}
/*
* Creates a table row, and adds either a table cell (data
* or a header depending on the boolean flag).
*/
private Element renderAsTableRow(Element hostEle, boolean isHeader, int tableElement) {
Element trElem = createElement(IHTMLConstants.TAG_TR);
Element tdElem = renderAsTableCell(hostEle, isHeader, tableElement);
trElem.appendChild(tdElem);
return trElem;
}
/*
* Creates a table cell, as either data or a header depending
* on the boolean flag.
*/
private Element renderAsTableCell(Element hostEle, boolean isHeader, int tableElement) {
Element tdElem = null;
if (isHeader) {
tdElem = createElement(IHTMLConstants.TAG_TH);
} else {
tdElem = createElement(IHTMLConstants.TAG_TD);
}
tdElem.appendChild(renderDefault(hostEle, tableElement));
return tdElem;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jst.pagedesigner.converter.ITagConverter#isMultiLevel()
*/
public boolean isMultiLevel() {
return true;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jst.pagedesigner.css2.style.ITagEditInfo#isWidget()
*/
public boolean isWidget() {
return false;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jst.pagedesigner.converter.AbstractTagConverter#needBorderDecorator()
*/
public boolean needBorderDecorator() {
return true;
}
}