| /******************************************************************************* |
| * 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.propertiesfileeditor; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.IOException; |
| import java.util.Properties; |
| |
| import org.eclipse.jface.text.Assert; |
| import org.eclipse.jface.text.BadLocationException; |
| import org.eclipse.jface.text.BadPartitioningException; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.jface.text.IDocumentExtension3; |
| import org.eclipse.jface.text.IRegion; |
| import org.eclipse.jface.text.ITextViewer; |
| import org.eclipse.jface.text.ITypedRegion; |
| import org.eclipse.jface.text.Region; |
| import org.eclipse.jface.text.hyperlink.IHyperlink; |
| import org.eclipse.jface.text.hyperlink.IHyperlinkDetector; |
| |
| import org.eclipse.ui.IEditorSite; |
| import org.eclipse.ui.IFileEditorInput; |
| import org.eclipse.ui.IStorageEditorInput; |
| import org.eclipse.ui.texteditor.ITextEditor; |
| |
| |
| /** |
| * Properties key hyperlink detector. |
| * <p> |
| * XXX: This does not work for properties files coming from a JAR due to |
| * missing J Core functionality. For details see: |
| * https://bugs.eclipse.org/bugs/show_bug.cgi?id=22376 |
| * </p> |
| * |
| * @since 3.1 |
| */ |
| public class PropertyKeyHyperlinkDetector implements IHyperlinkDetector { |
| |
| private ITextEditor fTextEditor; |
| |
| |
| /** |
| * Creates a new Properties key hyperlink detector. |
| * |
| * @param editor the editor in which to detect the hyperlink |
| */ |
| public PropertyKeyHyperlinkDetector(ITextEditor editor) { |
| Assert.isNotNull(editor); |
| fTextEditor= editor; |
| } |
| |
| /* |
| * @see org.eclipse.jface.text.hyperlink.IHyperlinkDetector#detectHyperlinks(org.eclipse.jface.text.ITextViewer, org.eclipse.jface.text.IRegion, boolean) |
| */ |
| public IHyperlink[] detectHyperlinks(ITextViewer textViewer, IRegion region, boolean canShowMultipleHyperlinks) { |
| if (region == null || fTextEditor == null || canShowMultipleHyperlinks) |
| return null; |
| |
| IEditorSite site= fTextEditor.getEditorSite(); |
| if (site == null) |
| return null; |
| |
| if (!checkEnabled(region)) |
| return null; |
| |
| int offset= region.getOffset(); |
| ITypedRegion partition= null; |
| try { |
| IStorageEditorInput storageEditorInput= (IStorageEditorInput)fTextEditor.getEditorInput(); |
| IDocument document= fTextEditor.getDocumentProvider().getDocument(storageEditorInput); |
| if (document instanceof IDocumentExtension3) |
| partition= ((IDocumentExtension3)document).getPartition(IPropertiesFilePartitions.PROPERTIES_FILE_PARTITIONING, offset, false); |
| |
| // Check whether it is the correct partition |
| if (partition == null || !IDocument.DEFAULT_CONTENT_TYPE.equals(partition.getType())) { |
| return null; |
| } |
| |
| // Check whether the partition covers the selection |
| if (offset + region.getLength() > partition.getOffset() + partition.getLength()) { |
| return null; |
| } |
| |
| // Extract the key from the partition (which contains key and assignment |
| String key= document.get(partition.getOffset(), partition.getLength()); |
| |
| String realKey= key.trim(); |
| int delta= key.indexOf(realKey); |
| |
| // Check whether the key is valid |
| Properties properties= new Properties(); |
| properties.load(new ByteArrayInputStream(document.get().getBytes())); |
| if (properties.getProperty(realKey) == null) { |
| return null; |
| } |
| |
| return new PropertyKeyHyperlink[] {new PropertyKeyHyperlink(new Region(partition.getOffset() + delta, realKey.length()), realKey, fTextEditor)}; |
| |
| } catch (BadLocationException ex) { |
| return null; |
| } catch (BadPartitioningException ex) { |
| return null; |
| } catch (IOException ex) { |
| return null; |
| } |
| } |
| |
| private boolean checkEnabled(IRegion region) { |
| if (region == null || region.getOffset() < 0) |
| return false; |
| |
| // XXX: Must be changed to IStorageEditorInput once support for JARs is available (see class Javadoc for details) |
| return fTextEditor.getEditorInput() instanceof IFileEditorInput; |
| } |
| } |