+++ /dev/null
-/*
- * This file is part of lanterna (http://code.google.com/p/lanterna/).
- *
- * lanterna 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.
- *
- * 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 Lesser General Public License for more details.
- *
- * 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/>.
- *
- * Copyright (C) 2010-2015 Martin
- */
-package com.googlecode.lanterna.terminal.ansi;
-
-
-import java.io.*;
-import java.nio.charset.Charset;
-
-import com.googlecode.lanterna.TerminalSize;
-
-/**
- * This class extends UnixLikeTerminal and implements the Unix-specific parts.
- * <p>
- * If you need to have Lanterna to call stty at a different location, you'll need to
- * subclass this and override {@code getSTTYCommand()}.
- *
- * @author Martin
- */
-@SuppressWarnings("WeakerAccess")
-public class UnixTerminal extends UnixLikeTerminal {
-
- protected final UnixTerminalSizeQuerier terminalSizeQuerier;
- private final boolean catchSpecialCharacters;
-
- /**
- * Creates a UnixTerminal with default settings, using System.in and System.out for input/output, using the default
- * character set on the system as the encoding and trap ctrl+c signal instead of killing the application.
- * @throws IOException If there was an I/O error initializing the terminal
- */
- public UnixTerminal() throws IOException {
- this(System.in, System.out, Charset.defaultCharset());
- }
-
- /**
- * Creates a UnixTerminal using a specified input stream, output stream and character set. Ctrl+c signal will be
- * trapped instead of killing the application.
- *
- * @param terminalInput Input stream to read terminal input from
- * @param terminalOutput Output stream to write terminal output to
- * @param terminalCharset Character set to use when converting characters to bytes
- * @throws java.io.IOException If there was an I/O error initializing the terminal
- */
- public UnixTerminal(
- InputStream terminalInput,
- OutputStream terminalOutput,
- Charset terminalCharset) throws IOException {
- this(terminalInput, terminalOutput, terminalCharset, null);
- }
-
- /**
- * Creates a UnixTerminal using a specified input stream, output stream and character set, with a custom size
- * querier instead of using the default one. This way you can override size detection (if you want to force the
- * terminal to a fixed size, for example). Ctrl+c signal will be trapped instead of killing the application.
- *
- * @param terminalInput Input stream to read terminal input from
- * @param terminalOutput Output stream to write terminal output to
- * @param terminalCharset Character set to use when converting characters to bytes
- * @param customSizeQuerier Object to use for looking up the size of the terminal, or null to use the built-in
- * method
- * @throws java.io.IOException If there was an I/O error initializing the terminal
- */
- @SuppressWarnings({"SameParameterValue", "WeakerAccess"})
- public UnixTerminal(
- InputStream terminalInput,
- OutputStream terminalOutput,
- Charset terminalCharset,
- UnixTerminalSizeQuerier customSizeQuerier) throws IOException {
- this(terminalInput, terminalOutput, terminalCharset, customSizeQuerier, CtrlCBehaviour.CTRL_C_KILLS_APPLICATION);
- }
-
- /**
- * Creates a UnixTerminal using a specified input stream, output stream and character set, with a custom size
- * querier instead of using the default one. This way you can override size detection (if you want to force the
- * terminal to a fixed size, for example). You also choose how you want ctrl+c key strokes to be handled.
- *
- * @param terminalInput Input stream to read terminal input from
- * @param terminalOutput Output stream to write terminal output to
- * @param terminalCharset Character set to use when converting characters to bytes
- * @param customSizeQuerier Object to use for looking up the size of the terminal, or null to use the built-in
- * method
- * @param terminalCtrlCBehaviour Special settings on how the terminal will behave, see {@code UnixTerminalMode} for more
- * details
- * @throws java.io.IOException If there was an I/O error initializing the terminal
- */
- @SuppressWarnings({"SameParameterValue", "WeakerAccess"})
- public UnixTerminal(
- InputStream terminalInput,
- OutputStream terminalOutput,
- Charset terminalCharset,
- UnixTerminalSizeQuerier customSizeQuerier,
- CtrlCBehaviour terminalCtrlCBehaviour) throws IOException {
- super(terminalInput,
- terminalOutput,
- terminalCharset,
- terminalCtrlCBehaviour,
- new File("/dev/tty"));
-
- this.terminalSizeQuerier = customSizeQuerier;
-
- //Make sure to set an initial size
- onResized(80, 24);
-
- setupWinResizeHandler();
- saveSTTY();
- setCBreak(true);
- setEcho(false);
- sttyMinimum1CharacterForRead();
- if("false".equals(System.getProperty("com.googlecode.lanterna.terminal.UnixTerminal.catchSpecialCharacters", "").trim().toLowerCase())) {
- catchSpecialCharacters = false;
- }
- else {
- catchSpecialCharacters = true;
- disableSpecialCharacters();
- }
- setupShutdownHook();
- }
-
- @Override
- public TerminalSize getTerminalSize() throws IOException {
- if(terminalSizeQuerier != null) {
- return terminalSizeQuerier.queryTerminalSize();
- }
-
- return super.getTerminalSize();
- }
-
- @Override
- protected void sttyKeyEcho(final boolean enable) throws IOException {
- exec(getSTTYCommand(), enable ? "echo" : "-echo");
- }
-
- @Override
- protected void sttyMinimum1CharacterForRead() throws IOException {
- exec(getSTTYCommand(), "min", "1");
- }
-
- @Override
- protected void sttyICanon(final boolean enable) throws IOException {
- exec(getSTTYCommand(), enable ? "icanon" : "-icanon");
- }
-
- @Override
- protected String sttySave() throws IOException {
- return exec(getSTTYCommand(), "-g").trim();
- }
-
- @Override
- protected void sttyRestore(String tok) throws IOException {
- exec(getSTTYCommand(), tok);
- }
-
- /*
- //What was the problem with this one? I don't remember... Restoring ctrl+c for now (see below)
- private void restoreEOFCtrlD() throws IOException {
- exec(getShellCommand(), "-c", getSTTYCommand() + " eof ^d < /dev/tty");
- }
-
- private void disableSpecialCharacters() throws IOException {
- exec(getShellCommand(), "-c", getSTTYCommand() + " intr undef < /dev/tty");
- exec(getShellCommand(), "-c", getSTTYCommand() + " start undef < /dev/tty");
- exec(getShellCommand(), "-c", getSTTYCommand() + " stop undef < /dev/tty");
- exec(getShellCommand(), "-c", getSTTYCommand() + " susp undef < /dev/tty");
- }
-
- private void restoreSpecialCharacters() throws IOException {
- exec(getShellCommand(), "-c", getSTTYCommand() + " intr ^C < /dev/tty");
- exec(getShellCommand(), "-c", getSTTYCommand() + " start ^Q < /dev/tty");
- exec(getShellCommand(), "-c", getSTTYCommand() + " stop ^S < /dev/tty");
- exec(getShellCommand(), "-c", getSTTYCommand() + " susp ^Z < /dev/tty");
- }
- */
-
-
- /**
- * This method causes certain keystrokes (at the moment only ctrl+c) to be passed in to the program instead of
- * interpreted by the shell and affect the program. For example, ctrl+c will send an interrupt that causes the
- * JVM to shut down, but this method will make it pass in ctrl+c as a normal KeyStroke instead (you can still make
- * ctrl+c kill the application, but Lanterna can do this for you after having restored the terminal).
- * <p>
- * Please note that this method is generally called automatically (i.e. it's turned on by default), unless you
- * define a system property "com.googlecode.lanterna.terminal.UnixTerminal.catchSpecialCharacters" and set it to
- * the string "false".
- * @throws IOException If there was an I/O error when attempting to disable special characters
- * @see com.googlecode.lanterna.terminal.ansi.UnixLikeTerminal.CtrlCBehaviour
- */
- public void disableSpecialCharacters() throws IOException {
- exec(getSTTYCommand(), "intr", "undef");
- }
-
- /**
- * This method restores the special characters disabled by {@code disableSpecialCharacters()}, if it has been
- * called.
- * @throws IOException If there was an I/O error when attempting to restore special characters
- */
- public void restoreSpecialCharacters() throws IOException {
- exec(getSTTYCommand(), "intr", "^C");
- }
-
- @Override
- protected synchronized void restoreSTTY() throws IOException {
- super.restoreSTTY();
- if(catchSpecialCharacters) {
- restoreSpecialCharacters();
- }
- }
-
- protected String getSTTYCommand() {
- return "/bin/stty";
- }
-
-}
git://git.nikiroo.be / jvcard.git / blobdiff