blob: 08d3d848254fe2413075b9dab8548bae302055b7 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
/*******************************************************************************
* 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);
}
|
