blob: fca5e4e388795e826070e1037e0c89acfc0766eb (
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
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
/*****************************************************************************
* Copyright (c) 2010 CEA LIST.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Camille Letavernier (CEA LIST) camille.letavernier@cea.fr - Initial API and implementation
*****************************************************************************/
package org.eclipse.papyrus.infra.xtext.widgets.embedded;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.text.ITextOperationTarget;
import org.eclipse.jface.text.ITextViewer;
import org.eclipse.ui.texteditor.IUpdate;
public class TextViewerAction extends Action implements IUpdate {
private int fOperationCode = -1;
private ITextOperationTarget fOperationTarget;
/**
* Creates a new action.
*
* @param viewer
* the viewer
* @param operationCode
* the opcode
*/
public TextViewerAction(ITextViewer viewer, int operationCode) {
fOperationCode = operationCode;
fOperationTarget = viewer.getTextOperationTarget();
update();
}
/**
* Updates the enabled state of the action.
* Fires a property change if the enabled state changes.
*
* @see Action#firePropertyChange(String, Object, Object)
*/
public void update() {
boolean wasEnabled = isEnabled();
boolean isEnabled = (fOperationTarget != null && fOperationTarget.canDoOperation(fOperationCode));
setEnabled(isEnabled);
if(wasEnabled != isEnabled) {
firePropertyChange(ENABLED, wasEnabled ? Boolean.TRUE : Boolean.FALSE, isEnabled ? Boolean.TRUE : Boolean.FALSE);
}
}
/**
* @see Action#run()
*/
@Override
public void run() {
if(fOperationCode != -1 && fOperationTarget != null) {
fOperationTarget.doOperation(fOperationCode);
}
}
}
|
