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.*;
  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 JPasswordFieldDelegate();
  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             final boolean cutCopyAllowed;
  75             final String focusInputMapKey;
  76             if (echoChar != 0) {
  77                 cutCopyAllowed = false;
  78                 focusInputMapKey = "PasswordField.focusInputMap";
  79             } else {
  80                 cutCopyAllowed = true;
  81                 focusInputMapKey = "TextField.focusInputMap";
  82             }
  83             getDelegate().putClientProperty("JPasswordField.cutCopyAllowed", cutCopyAllowed);
  84             InputMap inputMap = (InputMap) UIManager.get(focusInputMapKey);
  85             SwingUtilities.replaceUIInputMap(getDelegate(), JComponent.WHEN_FOCUSED, inputMap);
  86         }
  87     }
  88 
  89     @Override
  90     public Dimension getPreferredSize(final int columns) {
  91         return getPreferredSize(1, columns);
  92     }
  93 
  94     @Override
  95     public Dimension getMinimumSize(final int columns) {
  96         return getPreferredSize(columns);
  97     }
  98 
  99     @Override
 100     public Dimension getMinimumSize() {
 101         return getMinimumSize(DEFAULT_COLUMNS);
 102     }
 103 
 104     @Override
 105     public void actionPerformed(final ActionEvent e) {
 106         postEvent(new ActionEvent(getTarget(), ActionEvent.ACTION_PERFORMED,
 107                                   getText(), e.getWhen(), e.getModifiers()));
 108     }
 109 
 110     /**
 111      * Restoring native behavior. We should sets the selection range to zero,
 112      * when component lost its focus.
 113      *
 114      * @param e the focus event
 115      */
 116     @Override
 117     protected void handleJavaFocusEvent(final FocusEvent e) {
 118         if (e.getID() == FocusEvent.FOCUS_LOST) {
 119             // In order to de-select the selection
 120             setCaretPosition(0);
 121         }
 122         super.handleJavaFocusEvent(e);
 123     }
 124 
 125     private final class JPasswordFieldDelegate extends JPasswordField {
 126 
 127         // Empty non private constructor was added because access to this
 128         // class shouldn't be emulated by a synthetic accessor method.
 129         JPasswordFieldDelegate() {
 130             super();
 131         }
 132 
 133         @Override
 134         public boolean hasFocus() {
 135             return getTarget().hasFocus();
 136         }
 137 
 138         @Override
 139         public Point getLocationOnScreen() {
 140             return LWTextFieldPeer.this.getLocationOnScreen();
 141         }
 142     }
 143 }