01: /*
02: * Beryl - A web platform based on XML, XSLT and Java
03: * This file is part of the Beryl XML GUI
04: *
05: * Copyright (C) 2004 Wenzel Jakob <wazlaf@tigris.org>
06: *
07: * This program is free software; you can redistribute it and/or
08: * modify it under the terms of the GNU Lesser General Public
09: * License as published by the Free Software Foundation; either
10: * version 2.1 of the License, or (at your option) any later version.
11:
12: * This program is distributed in the hope that it will be useful,
13: * but WITHOUT ANY WARRANTY; without even the implied warranty of
14: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15: * Lesser General Public License for more details.
16: *
17: * You should have received a copy of the GNU Lesser General Public
18: * License along with this program; if not, write to the Free Software
19: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-3107 USA
20: */
21:
22: package org.beryl.gui;
23:
24: import java.awt.datatransfer.Transferable;
25: import java.awt.dnd.DragGestureEvent;
26: import java.awt.dnd.DragGestureListener;
27:
28: /**
29: * Internally used class to facilitate the use of DnD
30: */
31: public class DragHandler implements DragGestureListener {
32: private Widget widget;
33: private String name;
34: private GUIEventListener listener = null;
35:
36: public DragHandler(Widget widget, GUIEventListener listener,
37: String name) {
38: this .widget = widget;
39: this .listener = listener;
40: this .name = name;
41: }
42:
43: public void dragGestureRecognized(DragGestureEvent dge) {
44: GUIEvent event = new GUIEvent(widget, name, dge);
45: listener.eventOccured(event);
46: Transferable transferable = (Transferable) event.getData();
47:
48: if (transferable != null)
49: dge.startDrag(null, transferable);
50: }
51: }
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