/*******************************************************************************
* Copyright (c) 2008 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.xml.ui.internal.handlers;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.ITextSelection;
import org.eclipse.jface.text.Region;
import org.eclipse.wst.sse.core.internal.provisional.IndexedRegion;
import org.eclipse.wst.sse.ui.internal.handlers.AbstractStructuredSelectHandler;
import org.w3c.dom.Node;
public class StructuredSelectEnclosingXMLHandler extends AbstractStructuredSelectHandler {
protected IndexedRegion getCursorIndexedRegion(IDocument document, ITextSelection textSelection) {
IndexedRegion indexedRegion = null;
indexedRegion = getIndexedRegion(document, textSelection.getOffset());
return indexedRegion;
}
protected Region getNewSelectionRegion(IndexedRegion indexedRegion, ITextSelection textSelection) {
Region newRegion = null;
if (indexedRegion instanceof Node) {
Node cursorNode = (Node) indexedRegion;
// use parent node for empty text node
if ((cursorNode.getNodeType() == Node.TEXT_NODE) && (cursorNode.getNodeValue().trim().length() == 0)) {
cursorNode = cursorNode.getParentNode();
if (cursorNode instanceof IndexedRegion) {
indexedRegion = (IndexedRegion) cursorNode;
}
}
Region cursorNodeRegion = new Region(indexedRegion.getStartOffset(), indexedRegion.getEndOffset() - indexedRegion.getStartOffset());
if ((cursorNodeRegion.getOffset() >= textSelection.getOffset()) && (cursorNodeRegion.getOffset() <= textSelection.getOffset() + textSelection.getLength()) && (cursorNodeRegion.getOffset() + cursorNodeRegion.getLength() >= textSelection.getOffset()) && (cursorNodeRegion.getOffset() + cursorNodeRegion.getLength() <= textSelection.getOffset() + textSelection.getLength())) {
Node newNode = cursorNode.getParentNode();
if (newNode instanceof IndexedRegion) {
IndexedRegion newIndexedRegion = (IndexedRegion) newNode;
newRegion = new Region(newIndexedRegion.getStartOffset(), newIndexedRegion.getEndOffset() - newIndexedRegion.getStartOffset());
}
}
else {
newRegion = cursorNodeRegion;
}
}
return newRegion;
}
}