| /******************************************************************************* |
| * Copyright (c) 2022, Red Hat Inc. and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| *******************************************************************************/ |
| package org.eclipse.jface.text.examples.codemining; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.CompletableFuture; |
| |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.jface.text.BadLocationException; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.jface.text.ITextViewer; |
| import org.eclipse.jface.text.codemining.AbstractCodeMiningProvider; |
| import org.eclipse.jface.text.codemining.ICodeMining; |
| import org.eclipse.jface.text.codemining.LineHeaderCodeMining; |
| |
| public class EmptyLineCodeMiningProvider extends AbstractCodeMiningProvider { |
| |
| @Override |
| public CompletableFuture<List<? extends ICodeMining>> provideCodeMinings(ITextViewer viewer, |
| IProgressMonitor monitor) { |
| IDocument document = viewer.getDocument(); |
| List<LineHeaderCodeMining> emptyLineHeaders = new ArrayList<>(); |
| for (int line = 0; line < document.getNumberOfLines(); line++) { |
| try { |
| if (document.getLineLength(line) == 1) { |
| emptyLineHeaders.add(new LineHeaderCodeMining(line, document, this) { |
| @Override |
| public String getLabel() { |
| return "Next line is empty"; |
| } |
| }); |
| } |
| } catch (BadLocationException ex) { |
| ex.printStackTrace(); |
| } |
| } |
| return CompletableFuture.completedFuture(emptyLineHeaders); |
| } |
| |
| } |