| /******************************************************************************* |
| * Copyright (c) 2000, 2005 IBM Corporation 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 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jface.text; |
| |
| /** |
| * Extension interface for {@link org.eclipse.jface.text.IWidgetTokenKeeper}. |
| * <p> |
| * Replaces the original <code>requestWidgetToken</code> functionality with a |
| * new priority based approach. Adds the concept of focus handling. |
| * |
| * @since 3.0 |
| */ |
| public interface IWidgetTokenKeeperExtension { |
| |
| /** |
| * 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. |
| * |
| * <p>The general contract is that the receiver should release the token |
| * if <code>priority</code> exceeds the receiver's priority.</p> |
| * |
| * @param owner the token owner |
| * @param priority the priority of the request |
| * @return <code>true</code> if token has been released <code>false</code> otherwise |
| */ |
| boolean requestWidgetToken(IWidgetTokenOwner owner, int priority); |
| |
| /** |
| * Requests the receiver to give focus to its popup shell, hover, or similar. There is |
| * no assumption made whether the receiver actually succeeded in taking the focus. The return |
| * value gives a hint whether the receiver tried to take focus. |
| * |
| * @param owner the token owner |
| * @return <code>true</code> if the receiver tried to take focus, <code>false</code> if it did not. |
| */ |
| boolean setFocus(IWidgetTokenOwner owner); |
| } |