1 /*
   2  * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 
  27 package sun.lwawt;
  28 
  29 import java.awt.Dimension;
  30 import java.awt.Point;
  31 import java.awt.TextField;
  32 import java.awt.event.ActionEvent;
  33 import java.awt.event.ActionListener;
  34 import java.awt.event.FocusEvent;
  35 import java.awt.peer.TextFieldPeer;
  36 
  37 import javax.swing.JPasswordField;
  38 import javax.swing.text.JTextComponent;
  39 
  40 final class LWTextFieldPeer
  41         extends LWTextComponentPeer<TextField, JPasswordField>
  42         implements TextFieldPeer, ActionListener {
  43 
  44     private static final int DEFAULT_COLUMNS = 1;
  45 
  46     LWTextFieldPeer(final TextField target,
  47                     final PlatformComponent platformComponent) {
  48         super(target, platformComponent);
  49     }
  50 
  51     @Override
  52     protected JPasswordField createDelegate() {
  53         return new JTextAreaDelegate();
  54     }
  55 
  56     @Override
  57     public void initialize() {
  58         super.initialize();
  59         setEchoChar(getTarget().getEchoChar());
  60         synchronized (getDelegateLock()) {
  61             getDelegate().addActionListener(this);
  62         }
  63     }
  64 
  65     @Override
  66     public JTextComponent getTextComponent() {
  67         return getDelegate();
  68     }
  69 
  70     @Override
  71     public void setEchoChar(final char echoChar) {
  72         synchronized (getDelegateLock()) {
  73             getDelegate().setEchoChar(echoChar);
  74             getDelegate().putClientProperty("JPasswordField.cutCopyAllowed",
  75                                             getDelegate().echoCharIsSet()
  76                                             ? Boolean.FALSE : Boolean.TRUE);
  77         }
  78     }
  79 
  80     @Override
  81     public Dimension getPreferredSize(final int columns) {
  82         return getPreferredSize(1, columns);
  83     }
  84 
  85     @Override
  86     public Dimension getMinimumSize(final int columns) {
  87         return getPreferredSize(columns);
  88     }
  89 
  90     @Override
  91     public Dimension getMinimumSize() {
  92         return getMinimumSize(DEFAULT_COLUMNS);
  93     }
  94 
  95     @Override
  96     public void actionPerformed(final ActionEvent e) {
  97         postEvent(new ActionEvent(getTarget(), ActionEvent.ACTION_PERFORMED,
  98                                   getText(), e.getWhen(), e.getModifiers()));
  99     }
 100 
 101     /**
 102      * Restoring native behavior. We should sets the selection range to zero,
 103      * when component lost its focus.
 104      *
 105      * @param e the focus event
 106      */
 107     @Override
 108     protected void handleJavaFocusEvent(final FocusEvent e) {
 109         if (e.getID() == FocusEvent.FOCUS_LOST) {
 110             // In order to de-select the selection
 111             setCaretPosition(0);
 112         }
 113         super.handleJavaFocusEvent(e);
 114     }
 115 
 116     private final class JTextAreaDelegate extends JPasswordField {
 117 
 118         // Empty non private constructor was added because access to this
 119         // class shouldn't be emulated by a synthetic accessor method.
 120         JTextAreaDelegate() {
 121             super();
 122         }
 123 
 124         @Override
 125         public boolean hasFocus() {
 126             return getTarget().hasFocus();
 127         }
 128 
 129         @Override
 130         public Point getLocationOnScreen() {
 131             return LWTextFieldPeer.this.getLocationOnScreen();
 132         }
 133     }
 134 }