/*
* This file is part of muCommander, http://www.mucommander.com
* Copyright (C) 2002-2016 Maxence Bernard
*
* muCommander is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* muCommander 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.mucommander.desktop;
import java.awt.*;
import java.io.IOException;
import java.net.URISyntaxException;
import java.net.URL;
/**
* @author Nicolas Rinaudo
*/
class InternalBrowse extends UrlOperation {
// - Instance variables --------------------------------------------------
// -----------------------------------------------------------------------
/** Underlying desktop instance. */
private Desktop desktop;
private boolean initialized = false;
// - Initialisation ------------------------------------------------------
// -----------------------------------------------------------------------
/**
* Creates a new <code>InternalOpenUrl</code> instance.
*/
public InternalBrowse() {
}
private Desktop getDesktop() {
if (!initialized) {
if(Desktop.isDesktopSupported())
desktop = Desktop.getDesktop();
initialized = true;
}
return desktop;
}
// - BrowseOperation implementation --------------------------------------
// -----------------------------------------------------------------------
/**
* Returns <code>true</code> if this operation is available.
* <p>
* This operation is available if:
* <ul>
* <li>Desktops are supported by the current system (<code>Desktop.isDesktopSupported()</code> returns <code>true</code>).</li>
* <li>Browsing is supported by the desktop (<code>Desktop.isSupported(Desktop.Action.BROWSE)</code> returns <code>true</code>).</li>
* </ul>
* </p>
* @return <code>true</code> if this operations is available, <code>false</code> otherwise.
*/
@Override
public boolean isAvailable() {return getDesktop() != null && getDesktop().isSupported(Desktop.Action.BROWSE);}
/**
* Opens the specified URL in the system's default browser.
* @param url URL to browse.
* @throws IOException if an error occured.
*/
@Override
public void execute(URL url) throws IOException {
// If java.awt.Desktop browsing is available, use it.
if(isAvailable()) {
try {getDesktop().browse(url.toURI());}
catch(URISyntaxException e) {throw new IOException(e.getMessage());}
}
throw new UnsupportedOperationException();
}
/**
* Returns the action's label.
* @return the action's label.
*/
@Override
public String getName() {return "java.awt.Desktop open URL";}
}