| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.jface.text; |
| |
| /** |
| * A widget token keeper may require a widget token from an |
| * <code>IWidgetTokenOwner</code> and release the token |
| * to the owner after usage. A widget token owner may request |
| * the token from the token keeper. The keeper may deny that. |
| * |
| * @since 2.0 |
| */ |
| public interface IWidgetTokenKeeper { |
| |
| /** |
| * The given widget token owner requests the widget token from |
| * this token keeper. Returns <code>true</code> if the token is released |
| * by this token keeper. Note, the keeper must not call |
| * <code>releaseWidgetToken(IWidgetTokenKeeper)</code> explicitly. |
| * |
| * @param owner the token owner |
| * @return <code>true</code> if token has been released <code>false</code> otherwise |
| */ |
| boolean requestWidgetToken(IWidgetTokenOwner owner); |
| } |
