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/*
* Copyright (c) 2005-2006 Laf-Widget Kirill Grouchnikov. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* o Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* o Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* o Neither the name of Laf-Widget Kirill Grouchnikov nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.jvnet.lafwidget.text;
import java.awt.*;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import javax.swing.*;
import javax.swing.border.Border;
import javax.swing.plaf.BorderUIResource;
import org.jvnet.lafwidget.*;
import org.jvnet.lafwidget.utils.LafConstants.PasswordStrength;
/**
* Adds password strength indication on password fields.
*
* @author Kirill Grouchnikov
*/
public class PasswordStrengthCheckerWidget extends LafWidgetAdapter {
/**
* The associated password field.
*/
protected JPasswordField passwordField;
/**
* Listens on changes to {@link LafWidget#PASSWORD_STRENGTH_CHECKER}
* property.
*/
protected PropertyChangeListener strengthCheckerListener;
/**
* Border with password strength indication.
*
* @author Kirill Grouchnikov
*/
private static class StrengthCheckedBorder implements Border {
/**
* Gutter width.
*/
public static final int GUTTER_WIDTH = 5;
/*
* (non-Javadoc)
*
* @see javax.swing.border.Border#isBorderOpaque()
*/
public boolean isBorderOpaque() {
return true;
}
/*
* (non-Javadoc)
*
* @see javax.swing.border.Border#getBorderInsets(java.awt.Component)
*/
public Insets getBorderInsets(Component c) {
JPasswordField jpf = (JPasswordField) c;
if (LafWidgetUtilities.getPasswordStrengthChecker(jpf) == null) {
return new Insets(0, 0, 0, 0);
} else {
if (c.getComponentOrientation().isLeftToRight())
return new Insets(0, 0, 0,
StrengthCheckedBorder.GUTTER_WIDTH);
else
return new Insets(0, StrengthCheckedBorder.GUTTER_WIDTH, 0,
0);
}
}
/*
* (non-Javadoc)
*
* @see javax.swing.border.Border#paintBorder(java.awt.Component,
* java.awt.Graphics, int, int, int, int)
*/
public void paintBorder(Component c, Graphics g, int x, int y,
int width, int height) {
JPasswordField jpf = (JPasswordField) c;
PasswordStrengthChecker passwordStrengthChecker = LafWidgetUtilities
.getPasswordStrengthChecker(jpf);
if (passwordStrengthChecker == null)
return;
PasswordStrength strength = passwordStrengthChecker.getStrength(jpf
.getPassword());
LafWidgetSupport lafSupport = LafWidgetRepository.getRepository()
.getLafSupport();
if (c.getComponentOrientation().isLeftToRight())
lafSupport.paintPasswordStrengthMarker(g, x + width
- StrengthCheckedBorder.GUTTER_WIDTH, y,
StrengthCheckedBorder.GUTTER_WIDTH, height, strength);
else
lafSupport.paintPasswordStrengthMarker(g, x, y,
StrengthCheckedBorder.GUTTER_WIDTH, height, strength);
String tooltip = passwordStrengthChecker.getDescription(strength);
jpf.setToolTipText(tooltip);
}
}
/*
* (non-Javadoc)
*
* @see org.jvnet.lafwidget.LafWidgetAdapter#setComponent(javax.swing.JComponent)
*/
public void setComponent(JComponent jcomp) {
super.setComponent(jcomp);
this.passwordField = (JPasswordField) jcomp;
}
/*
* (non-Javadoc)
*
* @see org.jvnet.lafwidget.LafWidgetAdapter#installListeners()
*/
public void installListeners() {
this.strengthCheckerListener = new PropertyChangeListener() {
public void propertyChange(PropertyChangeEvent evt) {
if (LafWidget.PASSWORD_STRENGTH_CHECKER.equals(evt
.getPropertyName())) {
Object newValue = evt.getNewValue();
Object oldValue = evt.getOldValue();
if ((newValue != null)
&& (newValue instanceof PasswordStrengthChecker)
&& (!(oldValue instanceof PasswordStrengthChecker))) {
PasswordStrengthCheckerWidget.this.passwordField
.setBorder(new BorderUIResource.CompoundBorderUIResource(
PasswordStrengthCheckerWidget.this.passwordField
.getBorder(),
new StrengthCheckedBorder()));
} else {
// restore core border
Border coreBorder = UIManager
.getBorder("PasswordField.border");
PasswordStrengthCheckerWidget.this.passwordField
.setBorder(coreBorder);
}
}
}
};
this.passwordField
.addPropertyChangeListener(this.strengthCheckerListener);
}
/*
* (non-Javadoc)
*
* @see org.jvnet.lafwidget.LafWidgetAdapter#uninstallListeners()
*/
public void uninstallListeners() {
this.passwordField
.removePropertyChangeListener(this.strengthCheckerListener);
this.strengthCheckerListener = null;
}
/*
* (non-Javadoc)
*
* @see org.jvnet.lafwidget.LafWidgetAdapter#installDefaults()
*/
public void installDefaults() {
super.installDefaults();
// check if the property is already set - can happen on LAF change
Object checker = this.passwordField
.getClientProperty(LafWidget.PASSWORD_STRENGTH_CHECKER);
if ((checker != null) && (checker instanceof PasswordStrengthChecker)) {
this.passwordField
.setBorder(new BorderUIResource.CompoundBorderUIResource(
this.passwordField.getBorder(),
new StrengthCheckedBorder()));
}
}
/*
* (non-Javadoc)
*
* @see org.jvnet.lafwidget.LafWidget#requiresCustomLafSupport()
*/
public boolean requiresCustomLafSupport() {
return false;
}
}
