| /******************************************************************************* |
| * Copyright (c) 2000, 2008 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.ui.texteditor; |
| |
| |
| /** |
| * Extension interface for actions. Actions implementing this interface not |
| * only manage an enable/disable state but also manage a "hypothetical" |
| * enable state, depending on whether the target they work on is writable |
| * or read-only. |
| * |
| * @since 2.0 |
| */ |
| public interface IReadOnlyDependent { |
| |
| /** |
| * Returns whether the actions would be enabled if its target would be enabled given the |
| * writable state described by <code>isWritable</code>. <code>isEnabled()</code> and |
| * <code>isEnabled(boolean)</code> holds the following invariants: isEnabled() == false, if |
| * isEnabled(true) == false || isEnabled(false) == false isEnabled() == true, if isEnabled(true) |
| * == true || isEnabled(false) == true |
| * |
| * @param isWritable the writable state |
| * @return the hypothetical enable state of the action |
| */ |
| boolean isEnabled(boolean isWritable); |
| } |
