1 /* 2 * Copyright (c) 2016, 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 test.com.sun.javafx.stage; 27 28 import com.sun.javafx.scene.ParentHelper; 29 import com.sun.javafx.util.Utils; 30 import javafx.geometry.Bounds; 31 import javafx.scene.Node; 32 import test.javafx.stage.PopupTest.PopupRoot; 33 34 public class PopupRootHelper extends ParentHelper { 35 private static final PopupRootHelper theInstance; 36 private static PopupRootAccessor popupRootAccessor; 37 38 static { 39 theInstance = new PopupRootHelper(); 40 Utils.forceInit(PopupRoot.class); 41 } 42 43 private static PopupRootHelper getInstance() { 44 return theInstance; 45 } 46 47 public static void initHelper(PopupRoot popupRoot) { 48 setHelper(popupRoot, getInstance()); 49 } 50 51 @Override 52 protected Bounds computeLayoutBoundsImpl(Node node) { 53 return popupRootAccessor.doComputeLayoutBounds(node); 54 } 55 56 public static void setPopupRootAccessor(final PopupRootAccessor newAccessor) { 57 if (popupRootAccessor != null) { 58 throw new IllegalStateException(); 59 } 60 61 popupRootAccessor = newAccessor; 62 } 63 64 public interface PopupRootAccessor { 65 Bounds doComputeLayoutBounds(Node node); 66 } 67 68 }