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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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package sun.awt.X11;


import sun.awt.UNIXToolkit;

import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URI;

import java.awt.Desktop.Action;
import java.awt.peer.DesktopPeer;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;


Concrete implementation of the interface DesktopPeer for the Gnome desktop on Linux and Unix platforms.
See Also:
/** * Concrete implementation of the interface {@code DesktopPeer} for * the Gnome desktop on Linux and Unix platforms. * * @see DesktopPeer */
public class XDesktopPeer implements DesktopPeer { // supportedActions may be changed from native within an init() call private static final List<Action> supportedActions = new ArrayList<>(Arrays.asList(Action.OPEN, Action.MAIL, Action.BROWSE)); private static boolean nativeLibraryLoaded = false; private static boolean initExecuted = false; private static void initWithLock(){ XToolkit.awtLock(); try { if (!initExecuted) { nativeLibraryLoaded = init(UNIXToolkit.getEnabledGtkVersion() .getNumber(), UNIXToolkit.isGtkVerbose()); } } finally { initExecuted = true; XToolkit.awtUnlock(); } } //package-private XDesktopPeer(){ initWithLock(); } static boolean isDesktopSupported() { initWithLock(); return nativeLibraryLoaded && !supportedActions.isEmpty(); } public boolean isSupported(Action type) { return supportedActions.contains(type); } public void open(File file) throws IOException { try { launch(file.toURI()); } catch (MalformedURLException e) { throw new IOException(file.toString()); } } public void edit(File file) throws IOException { throw new UnsupportedOperationException("The current platform " + "doesn't support the EDIT action."); } public void print(File file) throws IOException { throw new UnsupportedOperationException("The current platform " + "doesn't support the PRINT action."); } public void mail(URI uri) throws IOException { launch(uri); } public void browse(URI uri) throws IOException { launch(uri); } private void launch(URI uri) throws IOException { byte[] uriByteArray = ( uri.toString() + '\0' ).getBytes(); boolean result = false; XToolkit.awtLock(); try { if (!nativeLibraryLoaded) { throw new IOException("Failed to load native libraries."); } result = gnome_url_show(uriByteArray); } finally { XToolkit.awtUnlock(); } if (!result) { throw new IOException("Failed to show URI:" + uri); } } private native boolean gnome_url_show(byte[] url); private static native boolean init(int gtkVersion, boolean verbose); }