/*******************************************************************************
* Copyright (c) 2004, 2005 IBM 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.wst.html.core.internal.document;
import java.util.HashMap;
import org.eclipse.core.runtime.Preferences;
import org.eclipse.wst.html.core.internal.HTMLCorePlugin;
import org.eclipse.wst.html.core.internal.preferences.HTMLCorePreferenceNames;
import org.eclipse.wst.sse.core.internal.provisional.INodeAdapter;
import org.eclipse.wst.sse.core.internal.provisional.INodeAdapterFactory;
import org.eclipse.wst.sse.core.internal.provisional.INodeNotifier;
import org.eclipse.wst.xml.core.internal.document.DocumentTypeAdapter;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMDocument;
/**
*/
public class HTMLDocumentTypeAdapterFactory implements INodeAdapterFactory, Preferences.IPropertyChangeListener {
private int tagNameCase = DocumentTypeAdapter.LOWER_CASE;
private int attrNameCase = DocumentTypeAdapter.LOWER_CASE;
private Preferences preferences = null;
// for removal later on release()
private HashMap fDoc2AdapterMap = new HashMap();
/**
*/
public HTMLDocumentTypeAdapterFactory() {
super();
this.preferences = HTMLCorePlugin.getDefault().getPluginPreferences();
if (this.preferences != null) {
updateCases(); // initialize
this.preferences.addPropertyChangeListener(this);
}
}
/**
* Method that returns the adapter associated with the given object. It
* may be a singleton or not ... depending on the needs of the
* INodeAdapter ... but in general it is recommended for an adapter to be
* stateless, so the efficiencies of a singleton can be gained.
*
* The implementation of this method should call addAdapter on the adapted
* object with the correct instance of the adapter.
*/
public INodeAdapter adapt(INodeNotifier notifier) {
INodeAdapter result = null;
// only adapt IDOMDocument
if (notifier instanceof IDOMDocument) {
// if already has an adapter, no need to recreate/initialize.
// Note: this means if "doctype" for DOM changes,
// theDocumentTypeAdatper for that DOM
// should be removed (and released) and it will be re-created next
// time required.
DocumentTypeAdapter oldAdapter = (DocumentTypeAdapter) notifier.getExistingAdapter(DocumentTypeAdapter.class);
if (oldAdapter != null) {
result = oldAdapter;
}
else {
// if there already was an adapter
//if(fAdapter != null)
// fAdapter.release();
// note, the factory is included in this case to have a central place
// to come back to for case preferences.
result = new HTMLDocumentTypeAdapter((IDOMDocument) notifier, this);
notifier.addAdapter(result);
fDoc2AdapterMap.put(notifier, result);
}
}
return result;
}
/**
*/
public int getAttrNameCase() {
return this.attrNameCase;
}
/**
*/
public int getTagNameCase() {
return this.tagNameCase;
}
/**
*/
public boolean isFactoryForType(Object type) {
return (type == DocumentTypeAdapter.class);
}
/**
*/
public void propertyChange(Preferences.PropertyChangeEvent event) {
if (event == null)
return;
String property = event.getProperty();
if (property == null)
return;
if (property.equals(HTMLCorePreferenceNames.TAG_NAME_CASE) || property.equals(HTMLCorePreferenceNames.ATTR_NAME_CASE)) {
updateCases();
}
}
/**
*/
private void updateCases() {
this.tagNameCase = DocumentTypeAdapter.LOWER_CASE;
this.attrNameCase = DocumentTypeAdapter.LOWER_CASE;
if (this.preferences == null)
return;
int tagCase = this.preferences.getInt(HTMLCorePreferenceNames.TAG_NAME_CASE);
if (tagCase == HTMLCorePreferenceNames.LOWER)
this.tagNameCase = DocumentTypeAdapter.LOWER_CASE;
else if (tagCase == HTMLCorePreferenceNames.UPPER)
this.tagNameCase = DocumentTypeAdapter.UPPER_CASE;
int attCase = this.preferences.getInt(HTMLCorePreferenceNames.ATTR_NAME_CASE);
if (attCase == HTMLCorePreferenceNames.LOWER)
this.attrNameCase = DocumentTypeAdapter.LOWER_CASE;
else if (attCase == HTMLCorePreferenceNames.UPPER)
this.tagNameCase = DocumentTypeAdapter.UPPER_CASE;
}
/**
*/
public void release() {
if(!fDoc2AdapterMap.isEmpty()) {
Object[] docs = fDoc2AdapterMap.keySet().toArray();
DocumentTypeAdapter adapter = null;
for (int i = 0; i < docs.length; i++) {
adapter = (DocumentTypeAdapter)fDoc2AdapterMap.get(docs[i]);
adapter.release();
((IDOMDocument)docs[i]).removeAdapter(adapter);
}
fDoc2AdapterMap.clear();
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=95960
if (this.preferences != null) {
this.preferences.removePropertyChangeListener(this);
}
}
/**
* Overriding copy method
*/
public INodeAdapterFactory copy() {
return new HTMLDocumentTypeAdapterFactory();
}
}