-/**
+/*
* Jexer - Java Text User Interface
*
- * Version: $Id$
- *
- * Author: Kevin Lamonte, <a href="mailto:kevin.lamonte@gmail.com">kevin.lamonte@gmail.com</a>
- *
- * License: LGPLv3 or later
+ * The MIT License (MIT)
*
- * Copyright: This module is licensed under the GNU Lesser General
- * Public License Version 3. Please see the file "COPYING" in this
- * directory for more information about the GNU Lesser General Public
- * License Version 3.
+ * Copyright (C) 2016 Kevin Lamonte
*
- * Copyright (C) 2015 Kevin Lamonte
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public License
- * as published by the Free Software Foundation; either version 3 of
- * the License, or (at your option) any later version.
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
*
- * This program 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.
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
*
- * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see
- * http://www.gnu.org/licenses/, or write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
+ * @author Kevin Lamonte [kevin.lamonte@gmail.com]
+ * @version 1
*/
package jexer.session;
/**
* TTYSessionInfo queries environment variables and the tty window size for
- * the session information. The username is taken from
- * getpwuid(geteuid()).pw_name, language is taken from LANG, and text window
- * size from ioctl(TIOCGWINSIZ).
+ * the session information. The username is taken from user.name, language
+ * is taken from user.language, and text window size from 'stty size'.
*/
-public class TTYSessionInfo implements SessionInfo {
+public final class TTYSessionInfo implements SessionInfo {
/**
- * User name
+ * User name.
*/
private String username = "";
/**
- * Language
+ * Language.
*/
private String language = "";
private int windowHeight = 24;
/**
- * Time at which the window size was refreshed
+ * Time at which the window size was refreshed.
*/
private Date lastQueryWindowTime;
-
+
/**
- * Username getter
+ * Username getter.
*
* @return the username
*/
public String getUsername() {
- return this.username;
+ return this.username;
}
/**
- * Username setter
+ * Username setter.
*
* @param username the value
*/
- public void setUsername(String username) {
- this.username = username;
+ public void setUsername(final String username) {
+ this.username = username;
}
/**
- * Language getter
+ * Language getter.
*
* @return the language
*/
public String getLanguage() {
- return this.language;
+ return this.language;
}
/**
- * Language setter
+ * Language setter.
*
* @param language the value
*/
- public void setLanguage(String language) {
- this.language = language;
+ public void setLanguage(final String language) {
+ this.language = language;
}
/**
* windowHeight are set automatically.
*/
private void sttyWindowSize() {
- String [] cmd = {
- "/bin/sh", "-c", "stty size < /dev/tty"
- };
- try {
- Process process = Runtime.getRuntime().exec(cmd);
- BufferedReader in = new BufferedReader(new InputStreamReader(process.getInputStream(), "UTF-8"));
- String line = in.readLine();
- if ((line != null) && (line.length() > 0)) {
- StringTokenizer tokenizer = new StringTokenizer(line);
- windowHeight = Integer.parseInt(tokenizer.nextToken());
- windowWidth = Integer.parseInt(tokenizer.nextToken());
- }
- while (true) {
- BufferedReader err = new BufferedReader(new InputStreamReader(process.getErrorStream(), "UTF-8"));
- line = err.readLine();
- if ((line != null) && (line.length() > 0)) {
- System.err.println("Error output from stty: " + line);
- }
- try{
- process.waitFor();
- break;
- } catch (InterruptedException e) {
- e.printStackTrace();
- }
- }
- int rc = process.exitValue();
- if (rc != 0) {
- System.err.println("stty returned error code: " + rc);
- }
- } catch (IOException e) {
- e.printStackTrace();
- }
+ String [] cmd = {
+ "/bin/sh", "-c", "stty size < /dev/tty"
+ };
+ try {
+ Process process = Runtime.getRuntime().exec(cmd);
+ BufferedReader in = new BufferedReader(
+ new InputStreamReader(process.getInputStream(), "UTF-8"));
+ String line = in.readLine();
+ if ((line != null) && (line.length() > 0)) {
+ StringTokenizer tokenizer = new StringTokenizer(line);
+ int rc = Integer.parseInt(tokenizer.nextToken());
+ if (rc > 0) {
+ windowHeight = rc;
+ }
+ rc = Integer.parseInt(tokenizer.nextToken());
+ if (rc > 0) {
+ windowWidth = rc;
+ }
+ }
+ while (true) {
+ BufferedReader err = new BufferedReader(
+ new InputStreamReader(process.getErrorStream(),
+ "UTF-8"));
+ line = err.readLine();
+ if ((line != null) && (line.length() > 0)) {
+ System.err.println("Error output from stty: " + line);
+ }
+ try {
+ process.waitFor();
+ break;
+ } catch (InterruptedException e) {
+ e.printStackTrace();
+ }
+ }
+ int rc = process.exitValue();
+ if (rc != 0) {
+ System.err.println("stty returned error code: " + rc);
+ }
+ } catch (IOException e) {
+ e.printStackTrace();
+ }
}
-
+
/**
- * Text window width getter
+ * Text window width getter.
*
* @return the window width
*/
public int getWindowWidth() {
- if (System.getProperty("os.name").startsWith("Windows")) {
- // Always use 80x25 for Windows (same as DOS)
- return 80;
- }
- return windowWidth;
+ if (System.getProperty("os.name").startsWith("Windows")) {
+ // Always use 80x25 for Windows (same as DOS)
+ return 80;
+ }
+ return windowWidth;
}
/**
- * Text window height getter
+ * Text window height getter.
*
* @return the window height
*/
public int getWindowHeight() {
- if (System.getProperty("os.name").startsWith("Windows")) {
- // Always use 80x25 for Windows (same as DOS)
- return 25;
- }
- return windowHeight;
+ if (System.getProperty("os.name").startsWith("Windows")) {
+ // Always use 80x25 for Windows (same as DOS)
+ return 25;
+ }
+ return windowHeight;
}
/**
- * Re-query the text window size
+ * Re-query the text window size.
*/
public void queryWindowSize() {
- if (lastQueryWindowTime == null) {
- lastQueryWindowTime = new Date();
- } else {
- Date now = new Date();
- if (now.getTime() - lastQueryWindowTime.getTime() < 3000) {
- // Don't re-spawn stty, it's been too soon.
- return;
- }
- }
- if (System.getProperty("os.name").startsWith("Linux") ||
- System.getProperty("os.name").startsWith("Mac OS X") ||
- System.getProperty("os.name").startsWith("SunOS") ||
- System.getProperty("os.name").startsWith("FreeBSD")
- ) {
- // Use stty to get the window size
- sttyWindowSize();
- }
+ if (lastQueryWindowTime == null) {
+ lastQueryWindowTime = new Date();
+ } else {
+ Date now = new Date();
+ if (now.getTime() - lastQueryWindowTime.getTime() < 3000) {
+ // Don't re-spawn stty, it's been too soon.
+ return;
+ }
+ }
+ if (System.getProperty("os.name").startsWith("Linux")
+ || System.getProperty("os.name").startsWith("Mac OS X")
+ || System.getProperty("os.name").startsWith("SunOS")
+ || System.getProperty("os.name").startsWith("FreeBSD")
+ ) {
+ // Use stty to get the window size
+ sttyWindowSize();
+ }
}
/**
- * Public constructor
+ * Public constructor.
*/
public TTYSessionInfo() {
- // Populate lang and user from the environment
- username = System.getProperty("user.name");
- language = System.getProperty("user.language");
- queryWindowSize();
+ // Populate lang and user from the environment
+ username = System.getProperty("user.name");
+ language = System.getProperty("user.language");
+ queryWindowSize();
}
}
git://git.nikiroo.be / nikiroo-utils.git / blobdiff