1 /* 2 * Copyright (c) 2005, 2011, 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 37 38 /** 39 * Concrete implementation of the interface <code>DesktopPeer</code> for 40 * the Gnome desktop on Linux and Unix platforms. 41 * 42 * @see DesktopPeer 43 */ 44 public class XDesktopPeer implements DesktopPeer { 45 46 private static boolean nativeLibraryLoaded = false; 47 private static boolean initExecuted = false; 48 49 private static void initWithLock(){ 50 XToolkit.awtLock(); 51 try { 52 if (!initExecuted) { 53 nativeLibraryLoaded = init(); 54 } 55 } finally { 56 initExecuted = true; 57 XToolkit.awtUnlock(); 58 } 59 } 60 61 //package-private 62 XDesktopPeer(){ 63 initWithLock(); 64 } 65 66 static boolean isDesktopSupported() { 67 initWithLock(); 68 return nativeLibraryLoaded; 69 } 70 71 public boolean isSupported(Action type) { 72 return type != Action.PRINT && type != Action.EDIT; 73 } 74 75 public void open(File file) throws IOException { 76 try { 77 launch(file.toURI()); 78 } catch (MalformedURLException e) { 79 throw new IOException(file.toString()); 80 } 81 } 82 83 public void edit(File file) throws IOException { 84 throw new UnsupportedOperationException("The current platform " + 85 "doesn't support the EDIT action."); 86 } 87 88 public void print(File file) throws IOException { 89 throw new UnsupportedOperationException("The current platform " + 90 "doesn't support the PRINT action."); 91 } 92 93 public void mail(URI uri) throws IOException { 94 launch(uri); 95 } 96 97 public void browse(URI uri) throws IOException { 98 launch(uri); 99 } 100 101 private void launch(URI uri) throws IOException { 102 byte[] uriByteArray = ( uri.toString() + '\0' ).getBytes(); 103 boolean result = false; 104 XToolkit.awtLock(); 105 try { 106 if (!nativeLibraryLoaded) { 107 throw new IOException("Failed to load native libraries."); 108 } 109 result = gnome_url_show(uriByteArray); 110 } finally { 111 XToolkit.awtUnlock(); 112 } 113 if (!result) { 114 throw new IOException("Failed to show URI:" + uri); 115 } 116 } 117 118 private native boolean gnome_url_show(byte[] url); 119 private static native boolean init(); 120 }