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/**
* Copyright (c) 2009 Oracle Corporation 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:
* Oracle Corporation - initial API and implementation
*/
package org.eclipse.jst.jsf.apache.trinidad.tagsupport.converter.operations;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.jst.jsf.apache.trinidad.tagsupport.ITrinidadConstants;
import org.eclipse.jst.jsf.apache.trinidad.tagsupport.Messages;
import org.eclipse.jst.pagedesigner.converter.ConvertPosition;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
/**
* ITransformOperation implementation specifically for the "breadCrumbs" JSF
* Element.
*
* <br><b>Note:</b> requires ITransformOperation.setTagConverterContext(...) to
* have been called to provide a valid ITagConverterContext instance prior to
* a call to the transform(...) method.
*
* @author Ian Trimble - Oracle
*/
public class BreadCrumbsOperation extends AbstractTrinidadTransformOperation {
/* (non-Javadoc)
* @see org.eclipse.jst.pagedesigner.dtmanager.converter.operations.AbstractTransformOperation#transform(org.w3c.dom.Element, org.w3c.dom.Element)
*/
@Override
public Element transform(Element srcElement, Element curElement) {
Element outerSpan = createElement("span"); //$NON-NLS-1$
String styleClass = calculateStyleClass("af_breadCrumbs", srcElement); //$NON-NLS-1$
if (styleClass != null) {
appendAttribute(outerSpan, "class", styleClass); //$NON-NLS-1$
}
String style = srcElement.getAttribute("inlineStyle"); //$NON-NLS-1$
if (style != null) {
appendAttribute(outerSpan, "style", style); //$NON-NLS-1$
}
List<Element> childCmdNavItems = getChildCmdNavItems(srcElement);
int currentChildIndex = 0;
int numChildren = childCmdNavItems.size();
if (numChildren > 0) {
for (Element childCmdNavItem: childCmdNavItems) {
Element nobr;
if (isVertical(srcElement)) {
Element div = appendChildElement("div", outerSpan); //$NON-NLS-1$
nobr = appendChildElement("nobr", div); //$NON-NLS-1$
appendChildText(getIndentationString(currentChildIndex), nobr);
} else {
nobr = appendChildElement("nobr", outerSpan); //$NON-NLS-1$
}
Element innerSpan = appendChildElement("span", nobr); //$NON-NLS-1$
tagConverterContext.addChild(
childCmdNavItem, new ConvertPosition(innerSpan, 0));
if (currentChildIndex < numChildren - 1) {
//appendChildText(" > ", nobr); //$NON-NLS-1$
appendChildText("\u00A0 \u003E \u00A0", nobr); //$NON-NLS-1$
}
currentChildIndex++;
}
} else {
appendAttribute(outerSpan, "style", ITrinidadConstants.STYLE_EMPTYELEMENT); //$NON-NLS-1$
appendChildText(Messages.BreadCrumbsOperation_EmptyBreadCrumbsTag, outerSpan);
}
return outerSpan;
}
private List<Element> getChildCmdNavItems(Element srcElement) {
List<Element> childCmdNavItems = new ArrayList<Element>();
NodeList childElements = srcElement.getElementsByTagNameNS(ITrinidadConstants.URI_CORE, "commandNavigationItem"); //$NON-NLS-1$$
if (childElements != null && childElements.getLength() > 0) {
for (int i = 0, len = childElements.getLength(); i < len; i++) {
childCmdNavItems.add((Element)childElements.item(i));
}
} else {
Element nodeStampFacet = getChildFacetByName(srcElement, "nodeStamp"); //$NON-NLS-1$
if (nodeStampFacet != null) {
childElements = nodeStampFacet.getElementsByTagNameNS(ITrinidadConstants.URI_CORE, "commandNavigationItem"); //$NON-NLS-1$
if (childElements != null && childElements.getLength() > 0) {
for (int i = 0, len = childElements.getLength(); i < len; i++) {
childCmdNavItems.add((Element)childElements.item(i));
}
}
}
}
return childCmdNavItems;
}
private boolean isVertical(Element srcElement) {
String orientationAttr = srcElement.getAttribute(ITrinidadConstants.ATTR_ORIENTATION);
return "vertical".equalsIgnoreCase(orientationAttr); //$NON-NLS-1$
}
private String getIndentationString(int indentationLevel) {
StringBuffer indentation = new StringBuffer(""); //$NON-NLS-1$
for (int i = 0; i < indentationLevel; i++) {
//indentation.append(" "); //$NON-NLS-1$
indentation.append(" \u00A0 \u00A0 \u00A0 \u00A0 \u00A0"); //$NON-NLS-1$
}
return indentation.toString();
}
}
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