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 java.awt.Component; 29 import java.awt.peer.ComponentPeer; 30 import java.awt.dnd.DropTarget; 31 32 import sun.lwawt.LWComponentPeer; 33 import sun.lwawt.PlatformWindow; 34 35 36 public final class CDropTarget { 37 38 Component fComponent; 39 ComponentPeer fPeer; 40 DropTarget fDropTarget; 41 private long fNativeDropTarget; 42 43 public static CDropTarget createDropTarget(DropTarget dropTarget, Component component, ComponentPeer peer) { 44 return new CDropTarget(dropTarget, component, peer); 45 } 46 47 private CDropTarget(DropTarget dropTarget, Component component, ComponentPeer peer) { 48 super(); 49 50 fDropTarget = dropTarget; 51 fComponent = component; 52 fPeer = peer; 53 54 long nativePeer = CPlatformWindow.getNativeViewPtr(((LWComponentPeer) peer).getPlatformWindow()); 55 // Create native dragging destination: 56 fNativeDropTarget = this.createNativeDropTarget(dropTarget, component, peer, nativePeer); 57 if (fNativeDropTarget == 0) { 58 throw new IllegalStateException("CDropTarget.createNativeDropTarget() failed."); 59 } 60 } 61 62 public DropTarget getDropTarget() { 63 return fDropTarget; 64 } 65 66 public void dispose() { 67 // Release native dragging destination, if any: 68 if (fNativeDropTarget != 0) { 69 this.releaseNativeDropTarget(fNativeDropTarget); 70 fNativeDropTarget = 0; 71 } 72 } 73 74 protected native long createNativeDropTarget(DropTarget dropTarget, Component component, ComponentPeer peer, long nativePeer); 75 protected native void releaseNativeDropTarget(long nativeDropTarget); 76 }