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 package javafx.embed.swing;
  27 
  28 import java.awt.Component;
  29 import java.awt.Frame;
  30 import java.lang.reflect.Field;
  31 
  32 import javafx.beans.value.ChangeListener;
  33 import javafx.beans.value.ObservableValue;
  34 
  35 class ProxyWindow extends Frame {
  36 
  37     private static Field peer;
  38     
  39     private static void initReflection() {
  40         try {
  41             peer = Component.class.getDeclaredField("peer");
  42             peer.setAccessible(true);
  43             
  44         } catch (Exception e) {
  45             e.printStackTrace();
  46         }
  47     }
  48     
  49     static {
  50         initReflection();
  51     }
  52     
  53     private SwingView proxyView;
  54     
  55     ProxyWindow(SwingView proxyView) {
  56         this.proxyView = proxyView;
  57         
  58         try {
  59             peer.set(this, new ProxyWindowPeer(this));
  60             
  61         } catch (Exception e) {
  62             e.printStackTrace();
  63         }
  64         proxyView.focusedProperty().addListener(new ChangeListener<Boolean>() {
  65 
  66             @Override
  67             public void changed(ObservableValue<? extends Boolean> obs,
  68                                 Boolean oldValue, Boolean newValue) {
  69                 FXSwingKeyboardFocusManagerPeer peer =
  70                         FXSwingKeyboardFocusManagerPeer.getInstance();
  71                 if (newValue) {
  72                     peer.focusGained(ProxyWindow.this);
  73                 } else {
  74                     peer.focusLost(ProxyWindow.this);
  75                 }
  76             }
  77         });
  78     }
  79 
  80     @Override
  81     public boolean isVisible() {
  82         return proxyView.isVisible();
  83     }
  84     @Override
  85     public boolean isShowing() {
  86         return proxyView.isVisible();
  87     }
  88 
  89     @Override
  90     public boolean isFocusTraversable() {
  91         return proxyView.isFocusTraversable();
  92     }
  93 
  94     SwingView getProxyView() {
  95         return proxyView;
  96     }
  97 }