| /******************************************************************************* |
| * Copyright (c) 2000, 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.jdt.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; |
| } |
| } |