1 /* 2 * Copyright (c) 2016, 2018, 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 java.awt.desktop; 27 28 import java.awt.Desktop; 29 import java.awt.GraphicsEnvironment; 30 import java.awt.HeadlessException; 31 import java.io.File; 32 import java.util.ArrayList; 33 import java.util.List; 34 35 /** 36 * Auxiliary event containing a list of files. 37 * 38 * @since 9 39 */ 40 public class FilesEvent extends AppEvent { 41 42 private static final long serialVersionUID = 5271763715462312871L; 43 final List<File> files; 44 45 /** 46 * Constructs a {@code FilesEvent}. 47 * 48 * @param files the list of files 49 * @throws HeadlessException if {@link GraphicsEnvironment#isHeadless()} 50 * returns {@code true} 51 * @throws UnsupportedOperationException if Desktop API is not supported on 52 * the current platform 53 * @see Desktop#isDesktopSupported() 54 * @see java.awt.GraphicsEnvironment#isHeadless 55 */ 56 FilesEvent(final List<File> files) { 57 this.files = files; 58 } 59 60 /** 61 * Gets the list of files. 62 * 63 * @return the list of files 64 */ 65 public List<File> getFiles() { 66 return files == null 67 ? null 68 : new ArrayList<>(files); 69 } 70 }