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/*******************************************************************************
* Copyright (c) 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.ui.internal.projection;
import org.eclipse.jface.text.source.projection.ProjectionViewer;
import org.eclipse.wst.html.core.HTML40Namespace;
import org.eclipse.wst.sse.core.AbstractAdapterFactory;
import org.eclipse.wst.sse.core.INodeAdapter;
import org.eclipse.wst.sse.core.INodeNotifier;
import org.w3c.dom.Node;
public class ProjectionModelNodeAdapterFactoryHTML extends AbstractAdapterFactory {
// copies of this class located in:
// org.eclipse.wst.html.ui.internal.projection
// org.eclipse.jst.jsp.ui.internal.projection
private ProjectionViewer fProjectionViewer;
public ProjectionModelNodeAdapterFactoryHTML() {
adapterKey = ProjectionModelNodeAdapterHTML.class;
}
/**
* Actually creates an adapter for the parent of target if target is the
* "adapt-able" node
*/
protected INodeAdapter createAdapter(INodeNotifier target) {
if ((fProjectionViewer != null) && (target instanceof Node) && ((Node) target).getNodeType() == Node.ELEMENT_NODE) {
Node node = (Node) target;
if (isNodeProjectable(node)) {
// actually work with the parent node to listen for add,
// delete events
Node parent = node.getParentNode();
if (parent instanceof INodeNotifier) {
INodeNotifier parentNotifier = (INodeNotifier) parent;
ProjectionModelNodeAdapterHTML parentAdapter = (ProjectionModelNodeAdapterHTML) parentNotifier.getExistingAdapter(ProjectionModelNodeAdapterHTML.class);
if (parentAdapter == null) {
// create a new adapter for parent
parentAdapter = new ProjectionModelNodeAdapterHTML(this);
parentNotifier.addAdapter(parentAdapter);
}
// call update on parent because a new node has just been
// added
parentAdapter.updateAdapter(parent);
}
}
}
return null;
}
ProjectionViewer getProjectionViewer() {
return fProjectionViewer;
}
/**
* Returns true if node is a node type able to fold
*
* @param node
* @return boolean true if node is projectable, false otherwise
*/
boolean isNodeProjectable(Node node) {
if (node.getNodeType() == Node.ELEMENT_NODE) {
String tagName = node.getNodeName();
// node is only projectable if it is head, body, script, style,
// table tags
if (HTML40Namespace.ElementName.HEAD.equalsIgnoreCase(tagName) || HTML40Namespace.ElementName.BODY.equalsIgnoreCase(tagName) || HTML40Namespace.ElementName.SCRIPT.equalsIgnoreCase(tagName) || HTML40Namespace.ElementName.STYLE.equalsIgnoreCase(tagName) || HTML40Namespace.ElementName.TABLE.equalsIgnoreCase((tagName)))
return true;
}
return false;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.wst.sse.core.AbstractAdapterFactory#release()
*/
public void release() {
fProjectionViewer = null;
super.release();
}
void setProjectionViewer(ProjectionViewer viewer) {
fProjectionViewer = viewer;
}
}
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