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/*******************************************************************************
* Copyright (c) 2000, 2007 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.jsdt.internal.ui.text.java;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.ITextViewer;
import org.eclipse.jface.text.TextUtilities;
/**
* Double click strategy aware of Java string and character syntax rules.
*/
public class JavaStringDoubleClickSelector extends JavaDoubleClickSelector {
private String fPartitioning;
/**
* Creates a new Java string double click selector for the given document partitioning.
*
* @param partitioning the document partitioning
*/
public JavaStringDoubleClickSelector(String partitioning) {
super();
fPartitioning= partitioning;
}
/*
* @see ITextDoubleClickStrategy#doubleClicked(ITextViewer)
*/
public void doubleClicked(ITextViewer textViewer) {
int offset= textViewer.getSelectedRange().x;
if (offset < 0)
return;
IDocument document= textViewer.getDocument();
IRegion region= match(document, offset);
if (region != null && region.getLength() >= 2) {
textViewer.setSelectedRange(region.getOffset() + 1, region.getLength() - 2);
} else {
region= selectWord(document, offset);
textViewer.setSelectedRange(region.getOffset(), region.getLength());
}
}
private IRegion match(IDocument document, int offset) {
try {
if ((document.getChar(offset) == '"') || (document.getChar(offset) == '\'') ||
(document.getChar(offset - 1) == '"') || (document.getChar(offset - 1) == '\''))
{
return TextUtilities.getPartition(document, fPartitioning, offset, true);
}
} catch (BadLocationException e) {
}
return null;
}
}
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