/*
* Copyright 2004-2014 SmartBear Software
*
* Licensed under the EUPL, Version 1.1 or - as soon as they will be approved by the European Commission - subsequent
* versions of the EUPL (the "Licence");
* You may not use this work except in compliance with the Licence.
* You may obtain a copy of the Licence at:
*
* http://ec.europa.eu/idabc/eupl
*
* Unless required by applicable law or agreed to in writing, software distributed under the Licence is
* distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the Licence for the specific language governing permissions and limitations
* under the Licence.
*/
package com.eviware.soapui.support.components;
import java.awt.Dimension;
import java.awt.Toolkit;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import javax.swing.JTextField;
import javax.swing.KeyStroke;
import javax.swing.event.UndoableEditEvent;
import javax.swing.event.UndoableEditListener;
import javax.swing.undo.CannotRedoException;
import javax.swing.undo.CannotUndoException;
import javax.swing.undo.UndoManager;
import com.eviware.soapui.support.UISupport;
import com.eviware.soapui.support.swing.JTextComponentPopupMenu;
/**
* JTextArea with Undo/Redo keyboard/popup support
*
* @author Ole.Matzura
*/
public class JUndoableTextField extends JTextField implements Undoable, UndoableEditListener, FocusListener {
public static final int UNDO_LIMIT = 100;
private UndoManager undoManager;
private boolean discardEditsOnSet = false;
public JUndoableTextField() {
super();
init();
}
public JUndoableTextField(boolean addPopup) {
this();
if (addPopup) {
JTextComponentPopupMenu.add(this);
}
}
private void init() {
getDocument().addUndoableEditListener(this);
addFocusListener(this);
setMinimumSize(new Dimension(50, 50));
addKeyListener(new KeyAdapter() {
public void keyPressed(KeyEvent e) {
if (KeyStroke.getKeyStrokeForEvent(e).equals(UISupport.getKeyStroke("menu Z"))) {
undo();
} else if (KeyStroke.getKeyStrokeForEvent(e).equals(UISupport.getKeyStroke("menu Y"))) {
redo();
} else if (KeyStroke.getKeyStrokeForEvent(e).equals(UISupport.getKeyStroke("menu X"))) {
cut();
} else if (KeyStroke.getKeyStrokeForEvent(e).equals(UISupport.getKeyStroke("menu C"))) {
copy();
} else if (KeyStroke.getKeyStrokeForEvent(e).equals(UISupport.getKeyStroke("menu V"))) {
paste();
} else {
return;
}
e.consume();
}
});
}
public JUndoableTextField(String text) {
super(text);
init();
}
public JUndoableTextField(int columns) {
super(columns);
init();
}
public JUndoableTextField(String text, int columns) {
super(text, columns);
init();
}
public void setText(String text) {
ensureUndoManager();
super.setText(text == null ? "" : text);
if (discardEditsOnSet && undoManager != null) {
undoManager.discardAllEdits();
}
}
public boolean isDiscardEditsOnSet() {
return discardEditsOnSet;
}
public void setDiscardEditsOnSet(boolean discardEditsOnSet) {
this.discardEditsOnSet = discardEditsOnSet;
}
public UndoManager getUndoManager() {
return undoManager;
}
private void ensureUndoManager() {
if (isEditable() && undoManager == null) {
undoManager = new UndoManager();
undoManager.setLimit(UNDO_LIMIT);
}
}
public void focusGained(FocusEvent fe) {
ensureUndoManager();
}
public void focusLost(FocusEvent fe) {
// removeUndoMananger();
}
public void undoableEditHappened(UndoableEditEvent e) {
if (undoManager != null) {
undoManager.addEdit(e.getEdit());
}
}
public void undo() {
if (!isEditable()) {
getToolkit().beep();
return;
}
try {
if (undoManager != null) {
undoManager.undo();
}
} catch (CannotUndoException cue) {
Toolkit.getDefaultToolkit().beep();
}
}
public void redo() {
if (!isEditable()) {
getToolkit().beep();
return;
}
try {
if (undoManager != null) {
undoManager.redo();
}
} catch (CannotRedoException cue) {
Toolkit.getDefaultToolkit().beep();
}
}
public void setSelectedText(String txt) {
replaceSelection(txt);
}
public boolean canRedo() {
return undoManager != null && undoManager.canRedo();
}
public boolean canUndo() {
return undoManager != null && undoManager.canUndo();
}
}