1 /*
   2  * Copyright (c) 2011, 2012, 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     LWTextFieldPeer(final TextField target,
  45                     final PlatformComponent platformComponent) {
  46         super(target, platformComponent);
  47     }
  48 
  49     @Override
  50     protected JPasswordField createDelegate() {
  51         return new JTextAreaDelegate();
  52     }
  53 
  54     @Override
  55     void initializeImpl() {
  56         super.initializeImpl();
  57         setEchoChar(getTarget().getEchoChar());
  58         synchronized (getDelegateLock()) {
  59             getDelegate().addActionListener(this);
  60         }
  61     }
  62 
  63     @Override
  64     public JTextComponent getTextComponent() {
  65         return getDelegate();
  66     }
  67 
  68     @Override
  69     public void setEchoChar(final char echoChar) {
  70         synchronized (getDelegateLock()) {
  71             getDelegate().setEchoChar(echoChar);
  72             getDelegate().putClientProperty("JPasswordField.cutCopyAllowed",
  73                                             getDelegate().echoCharIsSet()
  74                                             ? Boolean.FALSE : Boolean.TRUE);
  75         }
  76     }
  77 
  78     @Override
  79     public Dimension getPreferredSize(final int columns) {
  80         return getMinimumSize(columns);
  81     }
  82 
  83     @Override
  84     public Dimension getMinimumSize(final int columns) {
  85         return getMinimumSize(1, columns);
  86     }
  87 
  88     @Override
  89     public void actionPerformed(final ActionEvent e) {
  90         postEvent(new ActionEvent(getTarget(), ActionEvent.ACTION_PERFORMED,
  91                 getText(), e.getWhen(), e.getModifiers()));
  92     }
  93 
  94     /**
  95      * Restoring native behavior. We should sets the selection range to zero,
  96      * when component lost its focus.
  97      *
  98      * @param e the focus event
  99      */
 100     @Override
 101     protected void handleJavaFocusEvent(final FocusEvent e) {
 102         if (e.getID() == FocusEvent.FOCUS_LOST) {
 103             // In order to de-select the selection
 104             setCaretPosition(0);
 105         }
 106         super.handleJavaFocusEvent(e);
 107     }
 108 
 109     private final class JTextAreaDelegate extends JPasswordField {
 110 
 111         // Empty non private constructor was added because access to this
 112         // class shouldn't be emulated by a synthetic accessor method.
 113         JTextAreaDelegate() {
 114             super();
 115         }
 116 
 117         @Override
 118         public void replaceSelection(String content) {
 119             getDocument().removeDocumentListener(LWTextFieldPeer.this);
 120             super.replaceSelection(content);
 121             // post only one text event in this case
 122             postTextEvent();
 123             getDocument().addDocumentListener(LWTextFieldPeer.this);
 124         }
 125 
 126         @Override
 127         public boolean hasFocus() {
 128             return getTarget().hasFocus();
 129         }
 130 
 131         @Override
 132         public Point getLocationOnScreen() {
 133             return LWTextFieldPeer.this.getLocationOnScreen();
 134         }
 135     }
 136 }