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 sun.lwawt.macosx; 27 28 import sun.awt.datatransfer.ToolkitThreadBlockedHandler; 29 30 final class CToolkitThreadBlockedHandler implements ToolkitThreadBlockedHandler { 31 private final LWCToolkit toolkit = 32 java.awt.Toolkit.getDefaultToolkit() instanceof LWCToolkit 33 ? (LWCToolkit)java.awt.Toolkit.getDefaultToolkit() 34 : null; 35 36 public void lock() { 37 } 38 39 public void unlock() { 40 } 41 42 protected boolean isOwned() { 43 return false; 44 } 45 46 public void enter() { 47 // Despite the naming of this method, on MacOS only one 48 // event is read and dispatched before this method returns. 49 // This call is non-blocking and does not wait for an event 50 if (toolkit != null) { 51 toolkit.startNativeNestedEventLoop(); 52 } 53 } 54 55 public void exit() { 56 } 57 }