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