1/* 2 * Copyright (c) 2011, 2013, 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 26package sun.lwawt.macosx; 27 28import sun.lwawt.LWComponentPeer; 29import sun.lwawt.PlatformDropTarget; 30 31import java.awt.*; 32import java.awt.dnd.DropTarget; 33 34 35final class CDropTarget implements PlatformDropTarget { 36 private long fNativeDropTarget; 37 38 CDropTarget(DropTarget dropTarget, Component component, LWComponentPeer<?, ?> peer) { 39 long nativePeer = CPlatformWindow.getNativeViewPtr(peer.getPlatformWindow()); 40 if (nativePeer == 0L) return; // Unsupported for a window without a native view (plugin) 41 42 // Create native dragging destination: 43 fNativeDropTarget = createNativeDropTarget(dropTarget, component, nativePeer); 44 if (fNativeDropTarget == 0) { 45 throw new IllegalStateException("CDropTarget.createNativeDropTarget() failed."); 46 } 47 } 48 49 @Override 50 public void dispose() { 51 if (fNativeDropTarget != 0) { 52 releaseNativeDropTarget(fNativeDropTarget); 53 fNativeDropTarget = 0; 54 } 55 } 56 57 protected native long createNativeDropTarget(DropTarget dropTarget, 58 Component component, 59 long nativePeer); 60 protected native void releaseNativeDropTarget(long nativeDropTarget); 61} 62