| /******************************************************************************* |
| * Copyright (c) 2018 Angelo ZERR. |
| * |
| * 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 |
| * |
| * Contributors: |
| * Angelo Zerr <angelo.zerr@gmail.com> - [CodeMining] Update CodeMinings with IJavaReconcilingListener - Bug 530825 |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.ui.javaeditor; |
| |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import org.eclipse.core.runtime.IProgressMonitor; |
| |
| import org.eclipse.jface.text.source.ISourceViewer; |
| import org.eclipse.jface.text.source.ISourceViewerExtension5; |
| |
| import org.eclipse.jdt.core.dom.CompilationUnit; |
| |
| import org.eclipse.jdt.internal.ui.text.java.IJavaReconcilingListener; |
| |
| /** |
| * @since 3.14 |
| */ |
| public class JavaCodeMiningReconciler implements IJavaReconcilingListener { |
| |
| /** |
| * Stores the set of viewers for which source is reconciled and requests |
| * for references can be performed. |
| */ |
| private static final Set<ISourceViewerExtension5> reconciledViewers= new HashSet<>(); |
| |
| /** The Java editor this Java code mining reconciler is installed on */ |
| private JavaEditor fEditor; |
| |
| /** The source viewer this Java code mining reconciler is installed on */ |
| private ISourceViewerExtension5 fSourceViewer; |
| |
| |
| @Override |
| public void reconciled(CompilationUnit ast, boolean forced, IProgressMonitor progressMonitor) { |
| final ISourceViewerExtension5 sourceViewer= fSourceViewer; // take a copy as this can be null-ed in the meantime |
| if (sourceViewer != null) { |
| reconciledViewers.add(sourceViewer); |
| sourceViewer.updateCodeMinings(); |
| } |
| } |
| |
| @Override |
| public void aboutToBeReconciled() { |
| // interrupt code minings if modification occurs |
| reconciledViewers.remove(fSourceViewer); |
| } |
| |
| /** |
| * Install this reconciler on the given editor. |
| * |
| * @param editor the editor |
| * @param sourceViewer the source viewer |
| */ |
| public void install(JavaEditor editor, ISourceViewer sourceViewer) { |
| fEditor= editor; |
| if (sourceViewer instanceof ISourceViewerExtension5) { |
| fSourceViewer= (ISourceViewerExtension5)sourceViewer; |
| } else { |
| uninstall(); |
| return; |
| } |
| |
| if (fEditor instanceof CompilationUnitEditor) { |
| ((CompilationUnitEditor) fEditor).addReconcileListener(this); |
| } |
| fSourceViewer.updateCodeMinings(); |
| } |
| |
| /** |
| * Uninstall this reconciler from the editor. |
| */ |
| public void uninstall() { |
| reconciledViewers.remove(fSourceViewer); |
| if (fEditor instanceof CompilationUnitEditor) { |
| ((CompilationUnitEditor) fEditor).removeReconcileListener(this); |
| } |
| fEditor= null; |
| fSourceViewer= null; |
| } |
| |
| public static boolean isReconciled(ISourceViewerExtension5 viewer) { |
| return reconciledViewers.contains(viewer); |
| } |
| |
| } |