*
* The MIT License (MIT)
*
- * Copyright (C) 2016 Kevin Lamonte
+ * Copyright (C) 2019 Kevin Lamonte
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
*/
package jexer;
-import java.io.InputStream;
import java.io.IOException;
-import java.io.OutputStream;
-import java.io.UnsupportedEncodingException;
import java.lang.reflect.Field;
-import java.util.LinkedList;
+import java.text.MessageFormat;
+import java.util.ArrayList;
import java.util.List;
import java.util.Map;
+import java.util.ResourceBundle;
import jexer.bits.Cell;
import jexer.bits.CellAttributes;
import jexer.event.TKeypressEvent;
+import jexer.event.TMenuEvent;
import jexer.event.TMouseEvent;
import jexer.event.TResizeEvent;
+import jexer.menu.TMenu;
import jexer.tterminal.DisplayLine;
+import jexer.tterminal.DisplayListener;
import jexer.tterminal.ECMA48;
import static jexer.TKeypress.*;
/**
* TTerminalWindow exposes a ECMA-48 / ANSI X3.64 style terminal in a window.
*/
-public class TTerminalWindow extends TWindow {
+public class TTerminalWindow extends TScrollableWindow
+ implements DisplayListener {
+
+
+ /**
+ * Translated strings.
+ */
+ private static final ResourceBundle i18n = ResourceBundle.getBundle(TTerminalWindow.class.getName());
+
+ // ------------------------------------------------------------------------
+ // Variables --------------------------------------------------------------
+ // ------------------------------------------------------------------------
/**
* The emulator.
private Process shell;
/**
- * Vertical scrollbar.
+ * If true, we are using the ptypipe utility to support dynamic window
+ * resizing. ptypipe is available at
+ * https://gitlab.com/klamonte/ptypipe .
*/
- private TVScroller vScroller;
+ private boolean ptypipe = false;
/**
- * Claim the keystrokes the emulator will need.
+ * If true, close the window when the shell exits.
*/
- private void addShortcutKeys() {
- addShortcutKeypress(kbCtrlA);
- addShortcutKeypress(kbCtrlB);
- addShortcutKeypress(kbCtrlC);
- addShortcutKeypress(kbCtrlD);
- addShortcutKeypress(kbCtrlE);
- addShortcutKeypress(kbCtrlF);
- addShortcutKeypress(kbCtrlG);
- addShortcutKeypress(kbCtrlH);
- addShortcutKeypress(kbCtrlU);
- addShortcutKeypress(kbCtrlJ);
- addShortcutKeypress(kbCtrlK);
- addShortcutKeypress(kbCtrlL);
- addShortcutKeypress(kbCtrlM);
- addShortcutKeypress(kbCtrlN);
- addShortcutKeypress(kbCtrlO);
- addShortcutKeypress(kbCtrlP);
- addShortcutKeypress(kbCtrlQ);
- addShortcutKeypress(kbCtrlR);
- addShortcutKeypress(kbCtrlS);
- addShortcutKeypress(kbCtrlT);
- addShortcutKeypress(kbCtrlU);
- addShortcutKeypress(kbCtrlV);
- addShortcutKeypress(kbCtrlW);
- addShortcutKeypress(kbCtrlX);
- addShortcutKeypress(kbCtrlY);
- addShortcutKeypress(kbCtrlZ);
- addShortcutKeypress(kbF1);
- addShortcutKeypress(kbF2);
- addShortcutKeypress(kbF3);
- addShortcutKeypress(kbF4);
- addShortcutKeypress(kbF5);
- addShortcutKeypress(kbF6);
- addShortcutKeypress(kbF7);
- addShortcutKeypress(kbF8);
- addShortcutKeypress(kbF9);
- addShortcutKeypress(kbF10);
- addShortcutKeypress(kbF11);
- addShortcutKeypress(kbF12);
- addShortcutKeypress(kbAltA);
- addShortcutKeypress(kbAltB);
- addShortcutKeypress(kbAltC);
- addShortcutKeypress(kbAltD);
- addShortcutKeypress(kbAltE);
- addShortcutKeypress(kbAltF);
- addShortcutKeypress(kbAltG);
- addShortcutKeypress(kbAltH);
- addShortcutKeypress(kbAltU);
- addShortcutKeypress(kbAltJ);
- addShortcutKeypress(kbAltK);
- addShortcutKeypress(kbAltL);
- addShortcutKeypress(kbAltM);
- addShortcutKeypress(kbAltN);
- addShortcutKeypress(kbAltO);
- addShortcutKeypress(kbAltP);
- addShortcutKeypress(kbAltQ);
- addShortcutKeypress(kbAltR);
- addShortcutKeypress(kbAltS);
- addShortcutKeypress(kbAltT);
- addShortcutKeypress(kbAltU);
- addShortcutKeypress(kbAltV);
- addShortcutKeypress(kbAltW);
- addShortcutKeypress(kbAltX);
- addShortcutKeypress(kbAltY);
- addShortcutKeypress(kbAltZ);
+ private boolean closeOnExit = false;
+
+ // ------------------------------------------------------------------------
+ // Constructors -----------------------------------------------------------
+ // ------------------------------------------------------------------------
+
+ /**
+ * Public constructor spawns a custom command line.
+ *
+ * @param application TApplication that manages this window
+ * @param x column relative to parent
+ * @param y row relative to parent
+ * @param commandLine the command line to execute
+ */
+ public TTerminalWindow(final TApplication application, final int x,
+ final int y, final String commandLine) {
+
+ this(application, x, y, RESIZABLE, commandLine.split("\\s+"),
+ System.getProperty("jexer.TTerminal.closeOnExit",
+ "false").equals("true"));
}
/**
- * Public constructor spawns a shell.
+ * Public constructor spawns a custom command line.
+ *
+ * @param application TApplication that manages this window
+ * @param x column relative to parent
+ * @param y row relative to parent
+ * @param commandLine the command line to execute
+ * @param closeOnExit if true, close the window when the command exits
+ */
+ public TTerminalWindow(final TApplication application, final int x,
+ final int y, final String commandLine, final boolean closeOnExit) {
+
+ this(application, x, y, RESIZABLE, commandLine.split("\\s+"),
+ closeOnExit);
+ }
+
+ /**
+ * Public constructor spawns a custom command line.
*
* @param application TApplication that manages this window
* @param x column relative to parent
* @param y row relative to parent
* @param flags mask of CENTERED, MODAL, or RESIZABLE
+ * @param command the command line to execute
*/
public TTerminalWindow(final TApplication application, final int x,
- final int y, final int flags) {
+ final int y, final int flags, final String [] command) {
- super(application, "Terminal", x, y, 80 + 2, 24 + 2, flags);
+ this(application, x, y, flags, command,
+ System.getProperty("jexer.TTerminal.closeOnExit",
+ "false").equals("true"));
+ }
- // Assume XTERM
- ECMA48.DeviceType deviceType = ECMA48.DeviceType.XTERM;
+ /**
+ * Public constructor spawns a custom command line.
+ *
+ * @param application TApplication that manages this window
+ * @param x column relative to parent
+ * @param y row relative to parent
+ * @param flags mask of CENTERED, MODAL, or RESIZABLE
+ * @param command the command line to execute
+ * @param closeOnExit if true, close the window when the command exits
+ */
+ public TTerminalWindow(final TApplication application, final int x,
+ final int y, final int flags, final String [] command,
+ final boolean closeOnExit) {
- try {
- String [] cmdShellWindows = {
- "cmd.exe"
- };
+ super(application, i18n.getString("windowTitle"), x, y,
+ 80 + 2, 24 + 2, flags);
- // You cannot run a login shell in a bare Process interactively,
- // due to libc's behavior of buffering when stdin/stdout aren't a
- // tty. Use 'script' instead to run a shell in a pty. And
- // because BSD and GNU differ on the '-f' vs '-F' flags, we need
- // two different commands. Lovely.
- String [] cmdShellGNU = {
- "script", "-fqe", "/dev/null"
- };
- String [] cmdShellBSD = {
- "script", "-qe", "-F", "/dev/null"
- };
- // Spawn a shell and pass its I/O to the other constructor.
-
- ProcessBuilder pb;
- if (System.getProperty("os.name").startsWith("Windows")) {
- pb = new ProcessBuilder(cmdShellWindows);
- } else if (System.getProperty("os.name").startsWith("Mac")) {
- pb = new ProcessBuilder(cmdShellBSD);
- } else if (System.getProperty("os.name").startsWith("Linux")) {
- pb = new ProcessBuilder(cmdShellGNU);
- } else {
- // When all else fails, assume GNU.
- pb = new ProcessBuilder(cmdShellGNU);
- }
- Map<String, String> env = pb.environment();
- env.put("TERM", ECMA48.deviceTypeTerm(deviceType));
- env.put("LANG", ECMA48.deviceTypeLang(deviceType, "en"));
- env.put("COLUMNS", "80");
- env.put("LINES", "24");
- pb.redirectErrorStream(true);
- shell = pb.start();
- emulator = new ECMA48(deviceType, shell.getInputStream(),
- shell.getOutputStream());
- } catch (IOException e) {
- e.printStackTrace();
- }
+ this.closeOnExit = closeOnExit;
- // Setup the scroll bars
- onResize(new TResizeEvent(TResizeEvent.Type.WIDGET, getWidth(),
- getHeight()));
+ String [] fullCommand;
- // Claim the keystrokes the emulator will need.
- addShortcutKeys();
+ // Spawn a shell and pass its I/O to the other constructor.
+ if ((System.getProperty("jexer.TTerminal.ptypipe") != null)
+ && (System.getProperty("jexer.TTerminal.ptypipe").
+ equals("true"))
+ ) {
+ ptypipe = true;
+ fullCommand = new String[command.length + 1];
+ fullCommand[0] = "ptypipe";
+ System.arraycopy(command, 0, fullCommand, 1, command.length);
+ } else if (System.getProperty("os.name").startsWith("Windows")) {
+ fullCommand = new String[3];
+ fullCommand[0] = "cmd";
+ fullCommand[1] = "/c";
+ fullCommand[2] = stringArrayToString(command);
+ } else if (System.getProperty("os.name").startsWith("Mac")) {
+ fullCommand = new String[6];
+ fullCommand[0] = "script";
+ fullCommand[1] = "-q";
+ fullCommand[2] = "-F";
+ fullCommand[3] = "/dev/null";
+ fullCommand[4] = "-c";
+ fullCommand[5] = stringArrayToString(command);
+ } else {
+ // Default: behave like Linux
+ fullCommand = new String[5];
+ fullCommand[0] = "script";
+ fullCommand[1] = "-fqe";
+ fullCommand[2] = "/dev/null";
+ fullCommand[3] = "-c";
+ fullCommand[4] = stringArrayToString(command);
+ }
+ spawnShell(fullCommand);
}
/**
- * Terminate the child of the 'script' process used on POSIX. This may
- * or may not work.
+ * Public constructor spawns a shell.
+ *
+ * @param application TApplication that manages this window
+ * @param x column relative to parent
+ * @param y row relative to parent
+ * @param flags mask of CENTERED, MODAL, or RESIZABLE
*/
- private void terminateShellChildProcess() {
- int pid = -1;
- if (shell.getClass().getName().equals("java.lang.UNIXProcess")) {
- /* get the PID on unix/linux systems */
- try {
- Field field = shell.getClass().getDeclaredField("pid");
- field.setAccessible(true);
- pid = field.getInt(shell);
- } catch (Throwable e) {
- // SQUASH, this didn't work. Just bail out quietly.
- return;
- }
- }
- if (pid != -1) {
- // shell.destroy() works successfully at killing this side of
- // 'script'. But we need to make sure the other side (child
- // process) is also killed.
- String [] cmdKillIt = {
- "pkill", "-P", Integer.toString(pid)
- };
- try {
- Runtime.getRuntime().exec(cmdKillIt);
- } catch (Throwable e) {
- // SQUASH, this didn't work. Just bail out quietly.
- return;
- }
- }
+ public TTerminalWindow(final TApplication application, final int x,
+ final int y, final int flags) {
+
+ this(application, x, y, flags,
+ System.getProperty("jexer.TTerminal.closeOnExit",
+ "false").equals("true"));
+
}
/**
- * Public constructor.
+ * Public constructor spawns a shell.
*
* @param application TApplication that manages this window
* @param x column relative to parent
* @param y row relative to parent
* @param flags mask of CENTERED, MODAL, or RESIZABLE
- * @param input an InputStream connected to the remote side. For type ==
- * XTERM, input is converted to a Reader with UTF-8 encoding.
- * @param output an OutputStream connected to the remote user. For type
- * == XTERM, output is converted to a Writer with UTF-8 encoding.
- * @throws UnsupportedEncodingException if an exception is thrown when
- * creating the InputStreamReader
+ * @param closeOnExit if true, close the window when the shell exits
*/
public TTerminalWindow(final TApplication application, final int x,
- final int y, final int flags, final InputStream input,
- final OutputStream output) throws UnsupportedEncodingException {
+ final int y, final int flags, final boolean closeOnExit) {
- super(application, "Terminal", x, y, 80 + 2, 24 + 2, flags);
+ super(application, i18n.getString("windowTitle"), x, y,
+ 80 + 2, 24 + 2, flags);
- emulator = new ECMA48(ECMA48.DeviceType.XTERM, input, output);
+ this.closeOnExit = closeOnExit;
- // Setup the scroll bars
- onResize(new TResizeEvent(TResizeEvent.Type.WIDGET, getWidth(),
- getHeight()));
+ String cmdShellWindows = "cmd.exe";
- // Claim the keystrokes the emulator will need.
- addShortcutKeys();
+ // You cannot run a login shell in a bare Process interactively, due
+ // to libc's behavior of buffering when stdin/stdout aren't a tty.
+ // Use 'script' instead to run a shell in a pty. And because BSD and
+ // GNU differ on the '-f' vs '-F' flags, we need two different
+ // commands. Lovely.
+ String cmdShellGNU = "script -fqe /dev/null";
+ String cmdShellBSD = "script -q -F /dev/null";
+
+ // ptypipe is another solution that permits dynamic window resizing.
+ String cmdShellPtypipe = "ptypipe /bin/bash --login";
+
+ // Spawn a shell and pass its I/O to the other constructor.
+ if ((System.getProperty("jexer.TTerminal.ptypipe") != null)
+ && (System.getProperty("jexer.TTerminal.ptypipe").
+ equals("true"))
+ ) {
+ ptypipe = true;
+ spawnShell(cmdShellPtypipe.split("\\s+"));
+ } else if (System.getProperty("os.name").startsWith("Windows")) {
+ spawnShell(cmdShellWindows.split("\\s+"));
+ } else if (System.getProperty("os.name").startsWith("Mac")) {
+ spawnShell(cmdShellBSD.split("\\s+"));
+ } else if (System.getProperty("os.name").startsWith("Linux")) {
+ spawnShell(cmdShellGNU.split("\\s+"));
+ } else {
+ // When all else fails, assume GNU.
+ spawnShell(cmdShellGNU.split("\\s+"));
+ }
}
+ // ------------------------------------------------------------------------
+ // TScrollableWindow ------------------------------------------------------
+ // ------------------------------------------------------------------------
+
/**
* Draw the display buffer.
*/
synchronized (emulator) {
// Update the scroll bars
- reflow();
+ reflowData();
// Draw the box using my superclass
super.draw();
// Put together the visible rows
int visibleHeight = getHeight() - 2;
int visibleBottom = scrollback.size() + display.size()
- + vScroller.getValue();
+ + getVerticalValue();
assert (visibleBottom >= 0);
- List<DisplayLine> preceedingBlankLines = new LinkedList<DisplayLine>();
+ List<DisplayLine> preceedingBlankLines = new ArrayList<DisplayLine>();
int visibleTop = visibleBottom - visibleHeight;
if (visibleTop < 0) {
for (int i = visibleTop; i < 0; i++) {
}
assert (visibleTop >= 0);
- List<DisplayLine> displayLines = new LinkedList<DisplayLine>();
+ List<DisplayLine> displayLines = new ArrayList<DisplayLine>();
displayLines.addAll(scrollback);
displayLines.addAll(display);
- List<DisplayLine> visibleLines = new LinkedList<DisplayLine>();
+ List<DisplayLine> visibleLines = new ArrayList<DisplayLine>();
visibleLines.addAll(preceedingBlankLines);
visibleLines.addAll(displayLines.subList(visibleTop,
visibleBottom));
boolean reverse = line.isReverseColor() ^ ch.isReverse();
newCell.setReverse(false);
if (reverse) {
- newCell.setBackColor(ch.getForeColor());
- newCell.setForeColor(ch.getBackColor());
+ if (ch.getForeColorRGB() < 0) {
+ newCell.setBackColor(ch.getForeColor());
+ newCell.setBackColorRGB(-1);
+ } else {
+ newCell.setBackColorRGB(ch.getForeColorRGB());
+ }
+ if (ch.getBackColorRGB() < 0) {
+ newCell.setForeColor(ch.getBackColor());
+ newCell.setForeColorRGB(-1);
+ } else {
+ newCell.setForeColorRGB(ch.getBackColorRGB());
+ }
}
if (line.isDoubleWidth()) {
- getScreen().putCharXY((i * 2) + 1, row, newCell);
- getScreen().putCharXY((i * 2) + 2, row, ' ', newCell);
+ putCharXY((i * 2) + 1, row, newCell);
+ putCharXY((i * 2) + 2, row, ' ', newCell);
} else {
- getScreen().putCharXY(i + 1, row, newCell);
+ putCharXY(i + 1, row, newCell);
}
}
row++;
CellAttributes background = new CellAttributes();
// Fill in the blank lines on bottom
for (int i = 0; i < visibleHeight; i++) {
- getScreen().hLineXY(1, i + row, getWidth() - 2, ' ',
- background);
+ hLineXY(1, i + row, getWidth() - 2, ' ', background);
}
} // synchronized (emulator)
/**
* Handle window close.
*/
- @Override public void onClose() {
+ @Override
+ public void onClose() {
emulator.close();
if (shell != null) {
terminateShellChildProcess();
}
}
- /**
- * Copy out variables from the emulator that TTerminal has to expose on
- * screen.
- */
- private void readEmulatorState() {
- // Synchronize against the emulator so we don't stomp on its reader
- // thread.
- synchronized (emulator) {
-
- setCursorX(emulator.getCursorX() + 1);
- setCursorY(emulator.getCursorY() + 1
- + (getHeight() - 2 - emulator.getHeight()));
- if (vScroller != null) {
- setCursorY(getCursorY() - vScroller.getValue());
- }
- setCursorVisible(emulator.isCursorVisible());
- if (getCursorX() > getWidth() - 2) {
- setCursorVisible(false);
- }
- if ((getCursorY() > getHeight() - 2) || (getCursorY() < 0)) {
- setCursorVisible(false);
- }
- if (emulator.getScreenTitle().length() > 0) {
- // Only update the title if the shell is still alive
- if (shell != null) {
- setTitle(emulator.getScreenTitle());
- }
- }
-
- // Check to see if the shell has died.
- if (!emulator.isReading() && (shell != null)) {
- try {
- int rc = shell.exitValue();
- // The emulator exited on its own, all is fine
- setTitle(String.format("%s [Completed - %d]",
- getTitle(), rc));
- shell = null;
- emulator.close();
- clearShortcutKeypresses();
- } catch (IllegalThreadStateException e) {
- // The emulator thread has exited, but the shell Process
- // hasn't figured that out yet. Do nothing, we will see
- // this in a future tick.
- }
- } else if (emulator.isReading() && (shell != null)) {
- // The shell might be dead, let's check
- try {
- int rc = shell.exitValue();
- // If we got here, the shell died.
- setTitle(String.format("%s [Completed - %d]",
- getTitle(), rc));
- shell = null;
- emulator.close();
- clearShortcutKeypresses();
- } catch (IllegalThreadStateException e) {
- // The shell is still running, do nothing.
- }
- }
-
- } // synchronized (emulator)
- }
-
/**
* Handle window/screen resize events.
*
if (resize.getType() == TResizeEvent.Type.WIDGET) {
// Resize the scroll bars
- reflow();
+ reflowData();
+ placeScrollbars();
// Get out of scrollback
- vScroller.setValue(0);
+ setVerticalValue(0);
+
+ if (ptypipe) {
+ emulator.setWidth(getWidth() - 2);
+ emulator.setHeight(getHeight() - 2);
+
+ emulator.writeRemote("\033[8;" + (getHeight() - 2) + ";" +
+ (getWidth() - 2) + "t");
+ }
}
return;
/**
* Resize scrollbars for a new width/height.
*/
- private void reflow() {
+ @Override
+ public void reflowData() {
// Synchronize against the emulator so we don't stomp on its reader
// thread.
readEmulatorState();
// Vertical scrollbar
- if (vScroller == null) {
- vScroller = new TVScroller(this, getWidth() - 2, 0,
- getHeight() - 2);
- vScroller.setBottomValue(0);
- vScroller.setValue(0);
- } else {
- vScroller.setX(getWidth() - 2);
- vScroller.setHeight(getHeight() - 2);
- }
- vScroller.setTopValue(getHeight() - 2
+ setTopValue(getHeight() - 2
- (emulator.getScrollbackBuffer().size()
+ emulator.getDisplayBuffer().size()));
- vScroller.setBigChange(getHeight() - 2);
+ setVerticalBigChange(getHeight() - 2);
} // synchronized (emulator)
}
- /**
- * Check if a mouse press/release/motion event coordinate is over the
- * emulator.
- *
- * @param mouse a mouse-based event
- * @return whether or not the mouse is on the emulator
- */
- private final boolean mouseOnEmulator(final TMouseEvent mouse) {
-
- synchronized (emulator) {
- if (!emulator.isReading()) {
- return false;
- }
- }
-
- if ((mouse.getAbsoluteX() >= getAbsoluteX() + 1)
- && (mouse.getAbsoluteX() < getAbsoluteX() + getWidth() - 1)
- && (mouse.getAbsoluteY() >= getAbsoluteY() + 1)
- && (mouse.getAbsoluteY() < getAbsoluteY() + getHeight() - 1)
- ) {
- return true;
- }
- return false;
- }
-
/**
* Handle keystrokes.
*
|| keypress.equals(kbCtrlPgUp)
|| keypress.equals(kbAltPgUp)
) {
- vScroller.bigDecrement();
+ bigVerticalDecrement();
return;
}
if (keypress.equals(kbShiftPgDn)
|| keypress.equals(kbCtrlPgDn)
|| keypress.equals(kbAltPgDn)
) {
- vScroller.bigIncrement();
+ bigVerticalIncrement();
return;
}
synchronized (emulator) {
if (emulator.isReading()) {
// Get out of scrollback
- vScroller.setValue(0);
+ setVerticalValue(0);
emulator.keypress(keypress.getKey());
// UGLY HACK TIME! cmd.exe needs CRLF, not just CR, so if
}
if (mouse.isMouseWheelUp()) {
- vScroller.decrement();
+ verticalDecrement();
return;
}
if (mouse.isMouseWheelDown()) {
- vScroller.increment();
+ verticalIncrement();
return;
}
if (mouseOnEmulator(mouse)) {
super.onMouseMotion(mouse);
}
+ // ------------------------------------------------------------------------
+ // TTerminalWindow --------------------------------------------------------
+ // ------------------------------------------------------------------------
+
+ /**
+ * Claim the keystrokes the emulator will need.
+ */
+ private void addShortcutKeys() {
+ addShortcutKeypress(kbCtrlA);
+ addShortcutKeypress(kbCtrlB);
+ addShortcutKeypress(kbCtrlC);
+ addShortcutKeypress(kbCtrlD);
+ addShortcutKeypress(kbCtrlE);
+ addShortcutKeypress(kbCtrlF);
+ addShortcutKeypress(kbCtrlG);
+ addShortcutKeypress(kbCtrlH);
+ addShortcutKeypress(kbCtrlU);
+ addShortcutKeypress(kbCtrlJ);
+ addShortcutKeypress(kbCtrlK);
+ addShortcutKeypress(kbCtrlL);
+ addShortcutKeypress(kbCtrlM);
+ addShortcutKeypress(kbCtrlN);
+ addShortcutKeypress(kbCtrlO);
+ addShortcutKeypress(kbCtrlP);
+ addShortcutKeypress(kbCtrlQ);
+ addShortcutKeypress(kbCtrlR);
+ addShortcutKeypress(kbCtrlS);
+ addShortcutKeypress(kbCtrlT);
+ addShortcutKeypress(kbCtrlU);
+ addShortcutKeypress(kbCtrlV);
+ addShortcutKeypress(kbCtrlW);
+ addShortcutKeypress(kbCtrlX);
+ addShortcutKeypress(kbCtrlY);
+ addShortcutKeypress(kbCtrlZ);
+ addShortcutKeypress(kbF1);
+ addShortcutKeypress(kbF2);
+ addShortcutKeypress(kbF3);
+ addShortcutKeypress(kbF4);
+ addShortcutKeypress(kbF5);
+ addShortcutKeypress(kbF6);
+ addShortcutKeypress(kbF7);
+ addShortcutKeypress(kbF8);
+ addShortcutKeypress(kbF9);
+ addShortcutKeypress(kbF10);
+ addShortcutKeypress(kbF11);
+ addShortcutKeypress(kbF12);
+ addShortcutKeypress(kbAltA);
+ addShortcutKeypress(kbAltB);
+ addShortcutKeypress(kbAltC);
+ addShortcutKeypress(kbAltD);
+ addShortcutKeypress(kbAltE);
+ addShortcutKeypress(kbAltF);
+ addShortcutKeypress(kbAltG);
+ addShortcutKeypress(kbAltH);
+ addShortcutKeypress(kbAltU);
+ addShortcutKeypress(kbAltJ);
+ addShortcutKeypress(kbAltK);
+ addShortcutKeypress(kbAltL);
+ addShortcutKeypress(kbAltM);
+ addShortcutKeypress(kbAltN);
+ addShortcutKeypress(kbAltO);
+ addShortcutKeypress(kbAltP);
+ addShortcutKeypress(kbAltQ);
+ addShortcutKeypress(kbAltR);
+ addShortcutKeypress(kbAltS);
+ addShortcutKeypress(kbAltT);
+ addShortcutKeypress(kbAltU);
+ addShortcutKeypress(kbAltV);
+ addShortcutKeypress(kbAltW);
+ addShortcutKeypress(kbAltX);
+ addShortcutKeypress(kbAltY);
+ addShortcutKeypress(kbAltZ);
+ }
+
+ /**
+ * Convert a string array to a whitespace-separated string.
+ *
+ * @param array the string array
+ * @return a single string
+ */
+ private String stringArrayToString(final String [] array) {
+ StringBuilder sb = new StringBuilder(array[0].length());
+ for (int i = 0; i < array.length; i++) {
+ sb.append(array[i]);
+ if (i < array.length - 1) {
+ sb.append(' ');
+ }
+ }
+ return sb.toString();
+ }
+
+ /**
+ * Spawn the shell.
+ *
+ * @param command the command line to execute
+ */
+ private void spawnShell(final String [] command) {
+
+ /*
+ System.err.printf("spawnShell(): '%s'\n",
+ stringArrayToString(command));
+ */
+
+ vScroller = new TVScroller(this, getWidth() - 2, 0, getHeight() - 2);
+ setBottomValue(0);
+
+ // Assume XTERM
+ ECMA48.DeviceType deviceType = ECMA48.DeviceType.XTERM;
+
+ try {
+ ProcessBuilder pb = new ProcessBuilder(command);
+ Map<String, String> env = pb.environment();
+ env.put("TERM", ECMA48.deviceTypeTerm(deviceType));
+ env.put("LANG", ECMA48.deviceTypeLang(deviceType, "en"));
+ env.put("COLUMNS", "80");
+ env.put("LINES", "24");
+ pb.redirectErrorStream(true);
+ shell = pb.start();
+ emulator = new ECMA48(deviceType, shell.getInputStream(),
+ shell.getOutputStream(), this);
+ } catch (IOException e) {
+ messageBox(i18n.getString("errorLaunchingShellTitle"),
+ MessageFormat.format(i18n.getString("errorLaunchingShellText"),
+ e.getMessage()));
+ }
+
+ // Setup the scroll bars
+ onResize(new TResizeEvent(TResizeEvent.Type.WIDGET, getWidth(),
+ getHeight()));
+
+ // Claim the keystrokes the emulator will need.
+ addShortcutKeys();
+
+ // Add shortcut text
+ newStatusBar(i18n.getString("statusBarRunning"));
+ }
+
+ /**
+ * Terminate the child of the 'script' process used on POSIX. This may
+ * or may not work.
+ */
+ private void terminateShellChildProcess() {
+ int pid = -1;
+ if (shell.getClass().getName().equals("java.lang.UNIXProcess")) {
+ /* get the PID on unix/linux systems */
+ try {
+ Field field = shell.getClass().getDeclaredField("pid");
+ field.setAccessible(true);
+ pid = field.getInt(shell);
+ } catch (Throwable e) {
+ // SQUASH, this didn't work. Just bail out quietly.
+ return;
+ }
+ }
+ if (pid != -1) {
+ // shell.destroy() works successfully at killing this side of
+ // 'script'. But we need to make sure the other side (child
+ // process) is also killed.
+ String [] cmdKillIt = {
+ "pkill", "-P", Integer.toString(pid)
+ };
+ try {
+ Runtime.getRuntime().exec(cmdKillIt);
+ } catch (Throwable e) {
+ // SQUASH, this didn't work. Just bail out quietly.
+ return;
+ }
+ }
+ }
+
+ /**
+ * Called by emulator when fresh data has come in.
+ */
+ public void displayChanged() {
+ getApplication().postEvent(new TMenuEvent(TMenu.MID_REPAINT));
+ }
+
+ /**
+ * Function to call to obtain the display width.
+ *
+ * @return the number of columns in the display
+ */
+ public int getDisplayWidth() {
+ if (ptypipe) {
+ return getWidth() - 2;
+ }
+ return 80;
+ }
+
+ /**
+ * Function to call to obtain the display height.
+ *
+ * @return the number of rows in the display
+ */
+ public int getDisplayHeight() {
+ if (ptypipe) {
+ return getHeight() - 2;
+ }
+ return 24;
+ }
+
+ /**
+ * Hook for subclasses to be notified of the shell termination.
+ */
+ public void onShellExit() {
+ if (closeOnExit) {
+ close();
+ }
+ getApplication().postEvent(new TMenuEvent(TMenu.MID_REPAINT));
+ }
+
+ /**
+ * Copy out variables from the emulator that TTerminal has to expose on
+ * screen.
+ */
+ private void readEmulatorState() {
+ // Synchronize against the emulator so we don't stomp on its reader
+ // thread.
+ synchronized (emulator) {
+ setHiddenMouse(emulator.hasHiddenMousePointer());
+
+ setCursorX(emulator.getCursorX() + 1);
+ setCursorY(emulator.getCursorY() + 1
+ + (getHeight() - 2 - emulator.getHeight())
+ - getVerticalValue());
+ setCursorVisible(emulator.isCursorVisible());
+ if (getCursorX() > getWidth() - 2) {
+ setCursorVisible(false);
+ }
+ if ((getCursorY() > getHeight() - 2) || (getCursorY() < 0)) {
+ setCursorVisible(false);
+ }
+ if (emulator.getScreenTitle().length() > 0) {
+ // Only update the title if the shell is still alive
+ if (shell != null) {
+ setTitle(emulator.getScreenTitle());
+ }
+ }
+
+ // Check to see if the shell has died.
+ if (!emulator.isReading() && (shell != null)) {
+ try {
+ int rc = shell.exitValue();
+ // The emulator exited on its own, all is fine
+ setTitle(MessageFormat.format(i18n.
+ getString("windowTitleCompleted"), getTitle(), rc));
+ shell = null;
+ emulator.close();
+ clearShortcutKeypresses();
+ statusBar.setText(MessageFormat.format(i18n.
+ getString("statusBarCompleted"), rc));
+ onShellExit();
+ } catch (IllegalThreadStateException e) {
+ // The emulator thread has exited, but the shell Process
+ // hasn't figured that out yet. Do nothing, we will see
+ // this in a future tick.
+ }
+ } else if (emulator.isReading() && (shell != null)) {
+ // The shell might be dead, let's check
+ try {
+ int rc = shell.exitValue();
+ // If we got here, the shell died.
+ setTitle(MessageFormat.format(i18n.
+ getString("windowTitleCompleted"), getTitle(), rc));
+ shell = null;
+ emulator.close();
+ clearShortcutKeypresses();
+ statusBar.setText(MessageFormat.format(i18n.
+ getString("statusBarCompleted"), rc));
+ onShellExit();
+ } catch (IllegalThreadStateException e) {
+ // The shell is still running, do nothing.
+ }
+ }
+
+ } // synchronized (emulator)
+ }
+
+ /**
+ * Check if a mouse press/release/motion event coordinate is over the
+ * emulator.
+ *
+ * @param mouse a mouse-based event
+ * @return whether or not the mouse is on the emulator
+ */
+ private final boolean mouseOnEmulator(final TMouseEvent mouse) {
+
+ synchronized (emulator) {
+ if (!emulator.isReading()) {
+ return false;
+ }
+ }
+
+ if ((mouse.getAbsoluteX() >= getAbsoluteX() + 1)
+ && (mouse.getAbsoluteX() < getAbsoluteX() + getWidth() - 1)
+ && (mouse.getAbsoluteY() >= getAbsoluteY() + 1)
+ && (mouse.getAbsoluteY() < getAbsoluteY() + getHeight() - 1)
+ ) {
+ return true;
+ }
+ return false;
+ }
+
}
git://git.nikiroo.be / nikiroo-utils.git / blobdiff