1 /*
   2  * Copyright (c) 2018, 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 com.sun.javafx.embed.swing.oldimpl;
  27 
  28 import com.sun.javafx.application.PlatformImpl;
  29 import javafx.application.Platform;
  30 import com.sun.javafx.tk.Toolkit;
  31 import java.awt.EventQueue;
  32 import java.awt.SecondaryLoop;
  33 import java.util.concurrent.atomic.AtomicBoolean;
  34 
  35 import sun.awt.AWTAccessor;
  36 import sun.awt.FwDispatcher;
  37 
  38 import com.sun.javafx.embed.swing.SwingFXUtilsImplInterop;
  39 
  40 public class SwingFXUtilsImplInteropO extends SwingFXUtilsImplInterop {
  41 
  42     private static class FwSecondaryLoop implements SecondaryLoop {
  43 
  44         private final AtomicBoolean isRunning = new AtomicBoolean(false);
  45 
  46         @Override
  47         public boolean enter() {
  48             if (isRunning.compareAndSet(false, true)) {
  49                 PlatformImpl.runAndWait(() -> {
  50                     Toolkit.getToolkit().enterNestedEventLoop(FwSecondaryLoop.this);
  51                 });
  52                 return true;
  53             }
  54             return false;
  55         }
  56 
  57         @Override
  58         public boolean exit() {
  59             if (isRunning.compareAndSet(true, false)) {
  60                 PlatformImpl.runAndWait(() -> {
  61                     Toolkit.getToolkit().exitNestedEventLoop(FwSecondaryLoop.this, null);
  62                 });
  63                 return true;
  64             }
  65             return false;
  66         }
  67     }
  68 
  69     private static class FXDispatcher implements FwDispatcher {
  70 
  71         @Override
  72         public boolean isDispatchThread() {
  73             return Platform.isFxApplicationThread();
  74         }
  75 
  76         @Override
  77         public void scheduleDispatch(Runnable runnable) {
  78             Platform.runLater(runnable);
  79         }
  80 
  81         @Override
  82         public SecondaryLoop createSecondaryLoop() {
  83             return new FwSecondaryLoop();
  84         }
  85     }
  86 
  87     public void setFwDispatcher(EventQueue eventQueue) {
  88         AWTAccessor.getEventQueueAccessor().setFwDispatcher(eventQueue, new FXDispatcher());
  89     }
  90 }
  91