| /******************************************************************************* |
| * Copyright (c) 2019 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; |
| |
| import org.eclipse.jface.viewers.ISelectionProvider; |
| |
| /** |
| * Extension interface for {@link org.eclipse.jface.text.ITextViewer}. Adds the ability to retrieve |
| * the last known selection from outside of the UI Thread. |
| * |
| * @since 3.16 |
| */ |
| public interface ITextViewerExtension9 { |
| |
| |
| /** |
| * Returns the last known selection from a cache, without polling widget. |
| * <p> |
| * This may <strong>not</strong> be the current selection. Indeed, operations that change the |
| * selection without sending related events may not refresh the returned value. |
| * </p> |
| * <p> |
| * As opposed to {@link ISelectionProvider#getSelection()} that usually requires UI Thread, this |
| * method can run from any thread. |
| * </p> |
| * |
| * @return the last known selection. |
| */ |
| public ITextSelection getLastKnownSelection(); |
| } |