X-Git-Url: http://git.nikiroo.be/?a=blobdiff_plain;f=src%2Fjexer%2Fsession%2FTTYSessionInfo.java;h=91a83674384a64a52256a0cfd30cdb65eb074274;hb=e16dda65585466c8987bd1efd718431450a96605;hp=2236ac3e0bf904f7f474269fc46babe096f4ea19;hpb=4328bb42c10743287dad5cf045f059ad109eb540;p=nikiroo-utils.git diff --git a/src/jexer/session/TTYSessionInfo.java b/src/jexer/session/TTYSessionInfo.java index 2236ac3..91a8367 100644 --- a/src/jexer/session/TTYSessionInfo.java +++ b/src/jexer/session/TTYSessionInfo.java @@ -1,34 +1,30 @@ -/** +/* * Jexer - Java Text User Interface * - * Version: $Id$ - * - * Author: Kevin Lamonte, kevin.lamonte@gmail.com - * - * 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; @@ -40,19 +36,18 @@ import java.util.StringTokenizer; /** * 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 = ""; @@ -67,44 +62,44 @@ public class TTYSessionInfo implements SessionInfo { 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; } /** @@ -112,96 +107,105 @@ public class TTYSessionInfo implements SessionInfo { * 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(); } }