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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.css.ui.internal.selection;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.ITextSelection;
import org.eclipse.jface.text.Region;
import org.eclipse.wst.css.core.internal.provisional.document.ICSSNode;
import org.eclipse.wst.css.ui.internal.CSSUIMessages;
import org.eclipse.wst.sse.core.internal.provisional.IndexedRegion;
import org.eclipse.wst.sse.ui.internal.selection.StructuredSelectActionDelegate;
/**
* Selects enclosing CSS element
*/
public class StructuredSelectEnclosingCSSActionDelegate extends StructuredSelectActionDelegate {
public void init(IAction action) {
if (action != null) {
action.setText(CSSUIMessages.StructureSelectEnclosing_label);
action.setToolTipText(CSSUIMessages.StructureSelectEnclosing_tooltip);
action.setDescription(CSSUIMessages.StructureSelectEnclosing_description);
}
}
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 ICSSNode) {
ICSSNode cursorNode = (ICSSNode) indexedRegion;
Region cursorNodeRegion = new Region(indexedRegion.getStartOffset(), indexedRegion.getEndOffset() - indexedRegion.getStartOffset());
int currentOffset = textSelection.getOffset();
int currentEndOffset = currentOffset + textSelection.getLength();
if (cursorNodeRegion.getOffset() >= currentOffset && cursorNodeRegion.getOffset() <= currentEndOffset && cursorNodeRegion.getOffset() + cursorNodeRegion.getLength() >= currentOffset && cursorNodeRegion.getOffset() + cursorNodeRegion.getLength() <= currentEndOffset) {
ICSSNode 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;
}
}
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