mirror of https://github.com/FreeCol/freecol.git
124 lines
3.7 KiB
Java
124 lines
3.7 KiB
Java
/**
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* Copyright (C) 2002-2022 The FreeCol Team
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*
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* This file is part of FreeCol.
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*
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* FreeCol is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* FreeCol is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with FreeCol. If not, see <http://www.gnu.org/licenses/>.
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*/
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package net.sf.freecol.common.util;
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import java.io.IOException;
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import java.net.URI;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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/**
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* Class used to deal specifically with the operating system
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*/
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public class OSUtils {
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private static final Logger logger = Logger.getLogger(OSUtils.class.getName());
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private static final String SEPARATOR
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= System.getProperty("file.separator");
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/**
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* What OS are we using?
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*
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* @return The operating system name.
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*/
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public static String getOperatingSystem() {
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return System.getProperty("os.name");
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}
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/**
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* Does the OS look like Mac OS X?
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*
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* @return True if Mac OS X appears to be present.
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*/
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public static boolean onMacOSX() {
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return "Mac OS X".equals(getOperatingSystem());
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}
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/**
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* Does the OS look like some sort of unix?
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*
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* @return True we hope.
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*/
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public static boolean onUnix() {
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return "/".equals(SEPARATOR);
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}
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/**
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* Does the OS look like some sort of Windows?
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*
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* @return True if Windows appears to be present.
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*/
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public static boolean onWindows() {
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return getOperatingSystem().startsWith("Windows");
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}
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/**
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* Launches the web browser based on a given operating system
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*
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* @param url The URL to launch
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*/
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public static final void launchBrowser(String url) {
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// Use Desktop Class first
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try {
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URI uri = java.net.URI.create(url);
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java.awt.Desktop.getDesktop().browse(uri);
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} catch (IOException e) {
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// If Desktop Class fails to launch browser, log the error
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logger.log(Level.FINEST, "Web browser failed to launch via Desktop Class.", e);
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// Use Runtime to launch browser
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String[] browser = getBrowserExecString(url);
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try {
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Runtime.getRuntime().exec(browser);
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} catch (IOException re) {
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logger.log(Level.FINEST, "Web browser failed to launch via Runtime Class.", re);
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}
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}
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}
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/**
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* What should we run to launch a browser?
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*
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* @param url The URL to launch
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* @return An OS-dependent array of commands to exec a browser.
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*
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* @see #launchBrowser(String)
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*/
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private static final String[] getBrowserExecString(String url) {
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if (onMacOSX()) {
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// Apple Macintosh, Safari is the main browser
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return new String[] { "open" , "-a", "Safari", url };
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} else if (onUnix()) {
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// GNU Linux, use xdg-utils to launch the default
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// browser (portland.freedesktop.org)
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return new String[] { "xdg-open", url };
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} else if (onWindows()) {
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// Microsoft Windows, use the default browser
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return new String[] { "rundll32.exe",
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"url.dll,FileProtocolHandler", url };
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} else {
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return new String[] { "firefox", url };
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}
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}
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}
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