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/*******************************************************************************
* 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.cleanup;
import org.eclipse.wst.sse.core.internal.cleanup.IStructuredCleanupHandler;
import org.eclipse.wst.sse.core.internal.cleanup.IStructuredCleanupPreferences;
import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode;
import org.eclipse.wst.xml.core.internal.regions.DOMRegionContext;
import org.w3c.dom.Node;
// nakamori_TODO: check and remove CSS formatting
class HTMLCleanupHandlerFactory {
private static HTMLCleanupHandlerFactory fInstance = null;
static synchronized HTMLCleanupHandlerFactory getInstance() {
if (fInstance == null) {
fInstance = new HTMLCleanupHandlerFactory();
}
return fInstance;
}
private HTMLCleanupHandlerFactory() {
super();
}
IStructuredCleanupHandler createHandler(Node node, IStructuredCleanupPreferences cleanupPreferences) {
short nodeType = node.getNodeType();
IStructuredCleanupHandler handler = null;
switch (nodeType) {
case Node.ELEMENT_NODE : {
if (isJSPTag(node))
handler = new JSPElementNodeCleanupHandler();
else
handler = new ElementNodeCleanupHandler();
break;
}
case Node.TEXT_NODE : {
if (isParentStyleTag(node))
handler = new CSSTextNodeCleanupHandler();
else
handler = new NodeCleanupHandler();
break;
}
default : {
handler = new NodeCleanupHandler();
}
}
handler.setCleanupPreferences(cleanupPreferences);
return handler;
}
/**
* ISSUE: this is a bit of hidden JSP knowledge that was implemented this
* way for expedency. Should be evolved in future to depend on "nestedContext".
*/
private boolean isJSPTag(Node node) {
final String JSP_CLOSE = "JSP_CLOSE"; //$NON-NLS-1$
// final String JSP_COMMENT_CLOSE = "JSP_COMMENT_CLOSE"; //$NON-NLS-1$
// final String JSP_COMMENT_OPEN = "JSP_COMMENT_OPEN"; //$NON-NLS-1$
// final String JSP_COMMENT_TEXT = "JSP_COMMENT_TEXT"; //$NON-NLS-1$
final String JSP_CONTENT = "JSP_CONTENT"; //$NON-NLS-1$
final String JSP_DECLARATION_OPEN = "JSP_DECLARATION_OPEN"; //$NON-NLS-1$
final String JSP_DIRECTIVE_CLOSE = "JSP_DIRECTIVE_CLOSE"; //$NON-NLS-1$
final String JSP_DIRECTIVE_NAME = "JSP_DIRECTIVE_NAME"; //$NON-NLS-1$
final String JSP_DIRECTIVE_OPEN = "JSP_DIRECTIVE_OPEN"; //$NON-NLS-1$
final String JSP_EXPRESSION_OPEN = "JSP_EXPRESSION_OPEN"; //$NON-NLS-1$
// final String JSP_ROOT_TAG_NAME = "JSP_ROOT_TAG_NAME"; //$NON-NLS-1$
final String JSP_SCRIPTLET_OPEN = "JSP_SCRIPTLET_OPEN"; //$NON-NLS-1$
boolean result = false;
if (node instanceof IDOMNode) {
IStructuredDocumentRegion flatNode = ((IDOMNode) node).getFirstStructuredDocumentRegion();
// in some cases, the nodes exists, but hasn't been associated
// with
// a flatnode yet (the screen updates can be initiated on a
// different thread,
// so the request for a flatnode can come in before the node is
// fully formed.
// if the flatnode is null, we'll just allow the defaults to
// apply.
if (flatNode != null) {
String flatNodeType = flatNode.getType();
// should not be null, but just to be sure
if (flatNodeType != null) {
if ((flatNodeType.equals(JSP_CONTENT)) || (flatNodeType.equals(JSP_EXPRESSION_OPEN)) || (flatNodeType.equals(JSP_SCRIPTLET_OPEN)) || (flatNodeType.equals(JSP_DECLARATION_OPEN)) || (flatNodeType.equals(JSP_DIRECTIVE_CLOSE)) || (flatNodeType.equals(JSP_DIRECTIVE_NAME)) || (flatNodeType.equals(JSP_DIRECTIVE_OPEN)) || (flatNodeType.equals(JSP_CLOSE))) {
result = true;
}
}
}
}
return result;
}
private boolean isParentStyleTag(Node node) {
if (node == null)
return false;
if (node.getNodeType() != Node.TEXT_NODE)
return false;
if (!(node instanceof IDOMNode))
return false;
IStructuredDocumentRegion flatNode = ((IDOMNode) node).getFirstStructuredDocumentRegion();
if (flatNode == null)
return false;
if (flatNode.getType() != DOMRegionContext.BLOCK_TEXT)
return false;
// check if the parent is STYLE element
Node parent = node.getParentNode();
if (parent == null)
return false;
if (parent.getNodeType() != Node.ELEMENT_NODE)
return false;
String name = parent.getNodeName();
if (name == null)
return false;
if (!name.equalsIgnoreCase("STYLE"))//$NON-NLS-1$
return false;
return true;
}
}
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