/*******************************************************************************
* 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.elementedit;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.jst.jsf.common.dom.TagIdentifier;
import org.eclipse.jst.jsf.core.internal.tld.TagIdentifierFactory;
import org.eclipse.jst.pagedesigner.PageDesignerTraceOptions;
import org.eclipse.jst.pagedesigner.elementedit.html.HTMLElementEditFactory;
import org.eclipse.jst.pagedesigner.elementedit.jsp.JSPElementEditFactory;
import org.w3c.dom.Element;
/**
* @author mengbo
* @version 1.5
*/
public class ElementEditFactoryRegistry
{
List _factories = new ArrayList();
private static ElementEditFactoryRegistry _instance;
/**
*
*/
private ElementEditFactoryRegistry()
{
final List<IElementEditFactory> facs = ElementEditFacRegistryReader
.getAllHandlers();
if (facs != null)
{
for (final IElementEditFactory fac : facs)
{
addFactory(fac);
}
}
addFactory(new HTMLElementEditFactory());
addFactory(new JSPElementEditFactory());
}
/**
* Add a factory to list available.
*
* @param fac
*/
public void addFactory(final IElementEditFactory fac)
{
_factories.add(fac);
}
/**
* @param tagIdentifier
* @return an IElementEdit constructed for the tag uniquely identified by
* the ns uri (tag uri for JSP tags) and tagName (element name) or
* null if the system can't create one.
*/
public IElementEdit createElementEdit(final TagIdentifier tagIdentifier)
{
final String uri = tagIdentifier.getUri();
// first round, match uri
for (int i = 0, size = _factories.size(); i < size; i++)
{
final IElementEditFactory fac = (IElementEditFactory) _factories.get(i);
final String facuri = fac.getSupportedURI();
if (facuri != null && facuri.equalsIgnoreCase(uri))
{
final IElementEdit elementEdit = fac.createElementEdit(tagIdentifier);
if (elementEdit != null)
{
if (PageDesignerTraceOptions.TRACE_ELEMENTEDITSELECTION)
{
PageDesignerTraceOptions.log("ElementEditFactoryRegistry: first loop, "+ //$NON-NLS-1$
String.format("Selected %s for uri=%s, tagname=%s", elementEdit.getClass().getName(),uri, tagIdentifier.getTagName())); //$NON-NLS-1$
}
return elementEdit;
}
}
}
// second round
for (int i = 0, size = _factories.size(); i < size; i++)
{
final IElementEditFactory fac = (IElementEditFactory) _factories.get(i);
final String facuri = fac.getSupportedURI();
if (facuri == null)
{
final IElementEdit elementEdit = fac.createElementEdit(tagIdentifier);
if (elementEdit != null)
{
if (PageDesignerTraceOptions.TRACE_ELEMENTEDITSELECTION)
{
PageDesignerTraceOptions.log("ElementEditFactoryRegistry: second loop, "+ //$NON-NLS-1$
String.format("Selected %s for uri=%s, tagname=%s", elementEdit.getClass().getName(),uri, tagIdentifier.getTagName())); //$NON-NLS-1$
}
return elementEdit;
}
}
}
if (PageDesignerTraceOptions.TRACE_ELEMENTEDITSELECTION)
{
PageDesignerTraceOptions.log("ElementEditFactoryRegistry: no element edit found, returning null for "+ //$NON-NLS-1$
String.format("uri=%s, name=%s", tagIdentifier.getUri(), tagIdentifier.getTagName())); //$NON-NLS-1$
}
return null;
}
/**
* Convenience method for createElementEdit(uri, tagName) that takes a tag
* element.
*
* @param ele
* @return an element edit
*/
public IElementEdit createElementEdit(final Element ele)
{
final TagIdentifier tagIdentifier = TagIdentifierFactory
.createDocumentTagWrapper(ele);
return createElementEdit(tagIdentifier);
}
/**
* @return the single instance of the factory registry
*/
public synchronized static ElementEditFactoryRegistry getInstance()
{
if (_instance == null)
{
_instance = new ElementEditFactoryRegistry();
}
return _instance;
}
}