1 /* 2 * Copyright (c) 2005, 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 26 package sun.awt.X11; 27 28 29 import java.io.File; 30 import java.io.IOException; 31 import java.net.MalformedURLException; 32 import java.net.URI; 33 34 import java.awt.Desktop.Action; 35 import java.awt.peer.DesktopPeer; 36 import java.util.ArrayList; 37 import java.util.Arrays; 38 import java.util.List; 39 40 41 /** 42 * Concrete implementation of the interface <code>DesktopPeer</code> for 43 * the Gnome desktop on Linux and Unix platforms. 44 * 45 * @see DesktopPeer 46 */ 47 public class XDesktopPeer implements DesktopPeer { 48 49 // supportedActions may be changed from native within an init() call 50 private static final List<Action> supportedActions 51 = new ArrayList<>(Arrays.asList(Action.OPEN, Action.MAIL, Action.BROWSE)); 52 53 private static boolean nativeLibraryLoaded = false; 54 private static boolean initExecuted = false; 55 56 private static void initWithLock(){ 57 XToolkit.awtLock(); 58 try { 59 if (!initExecuted) { 60 nativeLibraryLoaded = init(); 61 } 62 } finally { 63 initExecuted = true; 64 XToolkit.awtUnlock(); 65 } 66 } 67 68 //package-private 69 XDesktopPeer(){ 70 initWithLock(); 71 } 72 73 static boolean isDesktopSupported() { 74 initWithLock(); 75 return nativeLibraryLoaded && !supportedActions.isEmpty(); 76 } 77 78 public boolean isSupported(Action type) { 79 return supportedActions.contains(type); 80 } 81 82 public void open(File file) throws IOException { 83 try { 84 launch(file.toURI()); 85 } catch (MalformedURLException e) { 86 throw new IOException(file.toString()); 87 } 88 } 89 90 public void edit(File file) throws IOException { 91 throw new UnsupportedOperationException("The current platform " + 92 "doesn't support the EDIT action."); 93 } 94 95 public void print(File file) throws IOException { 96 throw new UnsupportedOperationException("The current platform " + 97 "doesn't support the PRINT action."); 98 } 99 100 public void mail(URI uri) throws IOException { 101 launch(uri); 102 } 103 104 public void browse(URI uri) throws IOException { 105 launch(uri); 106 } 107 108 private void launch(URI uri) throws IOException { 109 byte[] uriByteArray = ( uri.toString() + '\0' ).getBytes(); 110 boolean result = false; 111 XToolkit.awtLock(); 112 try { 113 if (!nativeLibraryLoaded) { 114 throw new IOException("Failed to load native libraries."); 115 } 116 result = gnome_url_show(uriByteArray); 117 } finally { 118 XToolkit.awtUnlock(); 119 } 120 if (!result) { 121 throw new IOException("Failed to show URI:" + uri); 122 } 123 } 124 125 private native boolean gnome_url_show(byte[] url); 126 private static native boolean init(); 127 }