| /******************************************************************************* |
| * Copyright (c) 2000, 2012 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.hover; |
| |
| import org.eclipse.jface.text.IInformationControlCreator; |
| import org.eclipse.jface.text.IRegion; |
| import org.eclipse.jface.text.ITextViewer; |
| import org.eclipse.jface.text.information.IInformationProvider; |
| import org.eclipse.jface.text.information.IInformationProviderExtension; |
| import org.eclipse.jface.text.information.IInformationProviderExtension2; |
| |
| import org.eclipse.ui.IEditorPart; |
| |
| import org.eclipse.jdt.internal.ui.text.JavaWordFinder; |
| |
| |
| public class JavaInformationProvider implements IInformationProvider, IInformationProviderExtension, IInformationProviderExtension2 { |
| |
| protected BestMatchHover fImplementation; |
| |
| public JavaInformationProvider(IEditorPart editor) { |
| if (editor != null) { |
| fImplementation= new BestMatchHover(); |
| fImplementation.setEditor(editor); |
| } |
| } |
| |
| /* |
| * @see IInformationProvider#getSubject(ITextViewer, int) |
| */ |
| public IRegion getSubject(ITextViewer textViewer, int offset) { |
| |
| if (textViewer != null) |
| return JavaWordFinder.findWord(textViewer.getDocument(), offset); |
| |
| return null; |
| } |
| |
| /** |
| * @see IInformationProvider#getInformation(ITextViewer, IRegion) |
| * @deprecated |
| */ |
| public String getInformation(ITextViewer textViewer, IRegion subject) { |
| if (fImplementation != null) { |
| String s= fImplementation.getHoverInfo(textViewer, subject); |
| if (s != null && s.trim().length() > 0) { |
| return s; |
| } |
| } |
| return null; |
| } |
| |
| /* |
| * @see org.eclipse.jface.text.information.IInformationProviderExtension#getInformation2(org.eclipse.jface.text.ITextViewer, org.eclipse.jface.text.IRegion) |
| */ |
| public Object getInformation2(ITextViewer textViewer, IRegion subject) { |
| if (fImplementation == null) |
| return null; |
| return fImplementation.getHoverInfo2(textViewer, subject, true); |
| } |
| |
| /* |
| * @see IInformationProviderExtension2#getInformationPresenterControlCreator() |
| * @since 3.1 |
| */ |
| public IInformationControlCreator getInformationPresenterControlCreator() { |
| if (fImplementation == null) |
| return null; |
| return fImplementation.getInformationPresenterControlCreator(); |
| } |
| } |