/* * Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package java.awt.dnd; import java.util.EventListener; /** * The listener interface for receiving drag gesture events. * This interface is intended for a drag gesture recognition * implementation. See a specification for {@code DragGestureRecognizer} * for details on how to register the listener interface. * Upon recognition of a drag gesture the {@code * DragGestureRecognizer} calls this interface's * {@link #dragGestureRecognized dragGestureRecognized()} * method and passes a {@code DragGestureEvent}. * * @see java.awt.dnd.DragGestureRecognizer * @see java.awt.dnd.DragGestureEvent * @see java.awt.dnd.DragSource */ public interface DragGestureListener extends EventListener { /** * This method is invoked by the {@code DragGestureRecognizer} * when the {@code DragGestureRecognizer} detects a platform-dependent * drag initiating gesture. To initiate the drag and drop operation, * if appropriate, {@link DragGestureEvent#startDrag startDrag()} method on * the {@code DragGestureEvent} has to be invoked. * * @see java.awt.dnd.DragGestureRecognizer * @see java.awt.dnd.DragGestureEvent * @param dge the {@code DragGestureEvent} describing * the gesture that has just occurred */ void dragGestureRecognized(DragGestureEvent dge); }