X-Git-Url: http://git.nikiroo.be/?a=blobdiff_plain;f=src%2Fjexer%2FTTerminalWindow.java;h=b55e7b05bc1137600ea337cb71acc2ba29976b87;hb=00691e80f2f135f92be739e2b7e86775a2357276;hp=58e60e567c15387ffd82379f696af8e1f303ff5a;hpb=92554d64c21c6a477fd23a06ca3a64a542b622a3;p=nikiroo-utils.git diff --git a/src/jexer/TTerminalWindow.java b/src/jexer/TTerminalWindow.java index 58e60e5..b55e7b0 100644 --- a/src/jexer/TTerminalWindow.java +++ b/src/jexer/TTerminalWindow.java @@ -1,55 +1,68 @@ -/** +/* * Jexer - Java Text User Interface * - * License: LGPLv3 or later - * - * 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. + * The MIT License (MIT) * - * Copyright (C) 2015 Kevin Lamonte + * Copyright (C) 2019 Kevin Lamonte * - * 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. + * 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 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 above copyright notice and this permission notice shall be included in + * all copies or substantial portions of 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 + * 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. * * @author Kevin Lamonte [kevin.lamonte@gmail.com] * @version 1 */ package jexer; -import java.io.InputStream; import java.io.IOException; -import java.io.OutputStream; -import java.io.UnsupportedEncodingException; -import java.util.LinkedList; +import java.lang.reflect.Field; +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. @@ -62,86 +75,195 @@ public class TTerminalWindow extends TWindow { 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; /** - * Public constructor spawns a shell. + * If true, close the window when the shell exits. + */ + 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 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")); + } - try { - String [] cmdShellWindows = { - "cmd.exe" - }; + /** + * 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) { - // 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. - String [] cmdShell = { - "script", "-fqe", "/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 { - pb = new ProcessBuilder(cmdShell); - } - // shell = Runtime.getRuntime().exec(cmdShell); + super(application, i18n.getString("windowTitle"), x, y, + 80 + 2, 24 + 2, flags); - // TODO: add LANG, TERM, LINES, and COLUMNS - pb.redirectErrorStream(true); - shell = pb.start(); - emulator = new ECMA48(ECMA48.DeviceType.XTERM, - shell.getInputStream(), - shell.getOutputStream()); - } catch (IOException e) { - e.printStackTrace(); + this.closeOnExit = closeOnExit; + + String [] fullCommand; + + // 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); + } + + /** + * 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 + */ + 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")); - // Setup the scroll bars - onResize(new TResizeEvent(TResizeEvent.Type.WIDGET, getWidth(), - getHeight())); } /** - * 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"; + + // 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. */ @@ -152,7 +274,7 @@ public class TTerminalWindow extends TWindow { synchronized (emulator) { // Update the scroll bars - reflow(); + reflowData(); // Draw the box using my superclass super.draw(); @@ -161,18 +283,13 @@ public class TTerminalWindow extends TWindow { List display = emulator.getDisplayBuffer(); // Put together the visible rows - // System.err.printf("----------------------------\n"); - // System.err.printf("vScroller.value %d\n", vScroller.getValue()); int visibleHeight = getHeight() - 2; - // System.err.printf("visibleHeight %d\n", visibleHeight); int visibleBottom = scrollback.size() + display.size() - + vScroller.getValue(); - // System.err.printf("visibleBottom %d\n", visibleBottom); + + getVerticalValue(); assert (visibleBottom >= 0); - List preceedingBlankLines = new LinkedList(); + List preceedingBlankLines = new ArrayList(); int visibleTop = visibleBottom - visibleHeight; - // System.err.printf("visibleTop %d\n", visibleTop); if (visibleTop < 0) { for (int i = visibleTop; i < 0; i++) { preceedingBlankLines.add(emulator.getBlankDisplayLine()); @@ -181,19 +298,16 @@ public class TTerminalWindow extends TWindow { } assert (visibleTop >= 0); - List displayLines = new LinkedList(); + List displayLines = new ArrayList(); displayLines.addAll(scrollback); displayLines.addAll(display); - // System.err.printf("displayLines.size %d\n", displayLines.size()); - List visibleLines = new LinkedList(); + List visibleLines = new ArrayList(); visibleLines.addAll(preceedingBlankLines); visibleLines.addAll(displayLines.subList(visibleTop, visibleBottom)); - // System.err.printf("visibleLines.size %d\n", visibleLines.size()); visibleHeight -= visibleLines.size(); - // System.err.printf("visibleHeight %d\n", visibleHeight); assert (visibleHeight >= 0); // Now draw the emulator screen @@ -210,17 +324,27 @@ public class TTerminalWindow extends TWindow { Cell ch = line.charAt(i); Cell newCell = new Cell(); newCell.setTo(ch); - boolean reverse = line.isReverseColor() ^ ch.getReverse(); + 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++; @@ -232,8 +356,7 @@ public class TTerminalWindow extends TWindow { 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) @@ -243,62 +366,14 @@ public class TTerminalWindow extends TWindow { /** * Handle window close. */ - @Override public void onClose() { + @Override + public void onClose() { emulator.close(); - } - - /** - * 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()); - } - setHasCursor(emulator.visibleCursor()); - if (getCursorX() > getWidth() - 2) { - setHasCursor(false); - } - if ((getCursorY() > getHeight() - 2) || (getCursorY() < 0)) { - setHasCursor(false); - } - if (emulator.getScreenTitle().length() > 0) { - // Only update the title if the shell is still alive - if (shell != null) { - setTitle(emulator.getScreenTitle()); - } - } - setMaximumWindowWidth(emulator.getWidth() + 2); - - // Check to see if the shell has died. - if (!emulator.isReading() && (shell != null)) { - // The emulator exited on its own, all is fine - setTitle(String.format("%s [Completed - %d]", - getTitle(), shell.exitValue())); - shell = null; - emulator.close(); - } 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(); - } catch (IllegalThreadStateException e) { - // The shell is still running, do nothing. - } - } - - } // synchronized (emulator) + if (shell != null) { + terminateShellChildProcess(); + shell.destroy(); + shell = null; + } } /** @@ -315,10 +390,19 @@ public class TTerminalWindow extends TWindow { 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; @@ -328,7 +412,8 @@ public class TTerminalWindow extends TWindow { /** * 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. @@ -338,19 +423,10 @@ public class TTerminalWindow extends TWindow { 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) } @@ -368,14 +444,14 @@ public class TTerminalWindow extends TWindow { || keypress.equals(kbCtrlPgUp) || keypress.equals(kbAltPgUp) ) { - vScroller.bigDecrement(); + bigVerticalDecrement(); return; } if (keypress.equals(kbShiftPgDn) || keypress.equals(kbCtrlPgDn) || keypress.equals(kbAltPgDn) ) { - vScroller.bigIncrement(); + bigVerticalIncrement(); return; } @@ -384,7 +460,7 @@ public class TTerminalWindow extends TWindow { 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 @@ -411,18 +487,389 @@ public class TTerminalWindow extends TWindow { */ @Override public void onMouseDown(final TMouseEvent mouse) { + if (inWindowMove || inWindowResize) { + // TWindow needs to deal with this. + super.onMouseDown(mouse); + return; + } - if (mouse.getMouseWheelUp()) { - vScroller.decrement(); + if (mouse.isMouseWheelUp()) { + verticalDecrement(); return; } - if (mouse.getMouseWheelDown()) { - vScroller.increment(); + if (mouse.isMouseWheelDown()) { + verticalIncrement(); return; } + if (mouseOnEmulator(mouse)) { + synchronized (emulator) { + mouse.setX(mouse.getX() - 1); + mouse.setY(mouse.getY() - 1); + emulator.mouse(mouse); + readEmulatorState(); + return; + } + } - // Pass to children + // Emulator didn't consume it, pass it on super.onMouseDown(mouse); } + /** + * Handle mouse release events. + * + * @param mouse mouse button release event + */ + @Override + public void onMouseUp(final TMouseEvent mouse) { + if (inWindowMove || inWindowResize) { + // TWindow needs to deal with this. + super.onMouseUp(mouse); + return; + } + + if (mouseOnEmulator(mouse)) { + synchronized (emulator) { + mouse.setX(mouse.getX() - 1); + mouse.setY(mouse.getY() - 1); + emulator.mouse(mouse); + readEmulatorState(); + return; + } + } + + // Emulator didn't consume it, pass it on + super.onMouseUp(mouse); + } + + /** + * Handle mouse motion events. + * + * @param mouse mouse motion event + */ + @Override + public void onMouseMotion(final TMouseEvent mouse) { + if (inWindowMove || inWindowResize) { + // TWindow needs to deal with this. + super.onMouseMotion(mouse); + return; + } + + if (mouseOnEmulator(mouse)) { + synchronized (emulator) { + mouse.setX(mouse.getX() - 1); + mouse.setY(mouse.getY() - 1); + emulator.mouse(mouse); + readEmulatorState(); + return; + } + } + + // Emulator didn't consume it, pass it on + 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 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; + } + }