line source
package com.five_ten_sg.connectbot.service;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.IBinder;
import android.util.Log;
import android.view.KeyEvent;
import android.view.View;
import de.mud.terminal.vt320;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.Socket;
import java.nio.charset.Charset;
import java.util.HashMap;
public class TerminalMonitor {
public final static String TAG = "ConnectBot.TerminalMonitor";
public static final char MONITOR_CMD_INIT = 0;
public static final char MONITOR_CMD_ACTIVATE = 1;
public static final char MONITOR_CMD_HOSTDATA = 2;
public static final char MONITOR_CMD_CURSORMOVE = 3;
public static final char MONITOR_CMD_SCREENCHANGE = 4;
public static final char MONITOR_CMD_FIELDVALUE = 5;
public static final char MONITOR_CMD_SETFIELD = 5;
public static final char MONITOR_CMD_GETFIELD = 6;
public static final char MONITOR_CMD_SCREENWATCH = 7;
public static final char MONITOR_CMD_DEPRESS = 8;
private static final int MONITORPORT = 6000;
private static final String LOCALHOST = "127.0.0.1";
private Context parent = null;
private vt320 buffer = null;
private TerminalKeyListener keyListener = null;
private View view = null;
private String init = null;
private int start_line = 0; // monitor part of the screen for changes
private int end_line = 500; // ""
private int start_column = 0; // ""
private int end_column = 500; // ""
private boolean modified = false; // ""
private HashMap<Integer,Integer> keymap = null;
private IBinder bound = null;
private Socket monitor_socket = null;
private InputStream monitor_in = null;
private OutputStream monitor_out = null;
private MyReader monitor_reader = null;
private MyServiceConnection monitor_connection = new MyServiceConnection();
class MyReader extends Thread {
private InputStream monitor_in;
private byte[] b;
private boolean is_closing = false;
public MyReader(InputStream monitor_in) {
this.monitor_in = monitor_in;
b = new byte[100];
Log.i(TAG, "MyReader constructor");
}
public void closing() {
is_closing = true;
}
private char[] forceRead(int len) throws IOException {
int len2 = len * 2;
int off = 0;
if (b.length < len2) b = new byte[len2];
while (off < len2) {
int l = monitor_in.read(b, off, len2 - off);
if (l < 0) throw new IOException("eof");
off += l;
}
return bytesToChars(b, len2);
}
public void run() {
while (true) {
try {
char[] len = forceRead(1);
char[] packet = forceRead(len[0]);
char cmd = packet[0];
Log.i(TAG, String.format("received %d command", (int)cmd));
switch (cmd) {
case MONITOR_CMD_SETFIELD:
if (packet.length >= 4)
setField(packet[1], packet[2], packet, 3);
break;
case MONITOR_CMD_GETFIELD:
if (packet.length == 4)
getField(packet[1], packet[2], packet[3]);
break;
case MONITOR_CMD_SCREENWATCH:
if (packet.length == 4)
screenWatch(packet[1], packet[2], packet[3]);
break;
case MONITOR_CMD_DEPRESS:
if (packet.length == 2)
depress(packet[1]);
break;
default:
break;
}
}
catch (IOException e) {
if (!is_closing) Log.e(TAG, "exception in MyReader.run()", e);
break;
}
}
}
}
class MyServiceConnection implements ServiceConnection {
public void onServiceConnected(ComponentName className, IBinder service) {
bound = service;
Log.i(TAG, "bound to service");
try {
InetAddress serverAddr = InetAddress.getByName(LOCALHOST);
monitor_socket = new Socket(serverAddr, MONITORPORT);
monitor_in = monitor_socket.getInputStream();
monitor_out = monitor_socket.getOutputStream();
Log.i(TAG, "connected to monitor socket, send init " + init);
monitor_reader = new MyReader(monitor_in);
monitor_reader.start();
String x = " " + init;
monitorWrite(MONITOR_CMD_INIT, x.toCharArray());
}
catch (IOException e) {
Log.e(TAG, "exception in onServiceConnected()", e);
}
}
public void onServiceDisconnected(ComponentName classNam) {
bound = null;
Log.i(TAG, "unbound from service");
}
};
public TerminalMonitor(Context parent, vt320 buffer, TerminalKeyListener keyListener, View view, String init) {
this.parent = parent;
this.buffer = buffer;
this.keyListener = keyListener;
this.view = view;
this.init = init;
// setup the windows->android keymapping
// http://msdn.microsoft.com/en-us/library/windows/desktop/dd375731%28v=vs.85%29.aspx
// http://developer.android.com/reference/android/view/KeyEvent.html
keymap = new HashMap<Integer,Integer>();
keymap.put(0x08, KeyEvent.KEYCODE_BACK); // vk_back
keymap.put(0x09, KeyEvent.KEYCODE_TAB); // vk_tab
keymap.put(0x0d, KeyEvent.KEYCODE_ENTER); // vk_return
keymap.put(0x1b, KeyEvent.KEYCODE_ESCAPE); // vk_escape
keymap.put(0x21, KeyEvent.KEYCODE_PAGE_UP); // vk_prior
keymap.put(0x22, KeyEvent.KEYCODE_PAGE_DOWN); // vk_next
keymap.put(0x23, KeyEvent.KEYCODE_MOVE_END); // vk_end
keymap.put(0x24, KeyEvent.KEYCODE_MOVE_HOME); // vk_home
keymap.put(0x25, KeyEvent.KEYCODE_DPAD_LEFT); // vk_left
keymap.put(0x26, KeyEvent.KEYCODE_DPAD_UP); // vk_up
keymap.put(0x27, KeyEvent.KEYCODE_DPAD_RIGHT); // vk_right
keymap.put(0x28, KeyEvent.KEYCODE_DPAD_DOWN); // vk_down
keymap.put(0x2d, KeyEvent.KEYCODE_INSERT); // vk_insert
keymap.put(0x2e, KeyEvent.KEYCODE_DEL); // vk_delete
keymap.put(0x70, KeyEvent.KEYCODE_F1); // vk_f1
keymap.put(0x71, KeyEvent.KEYCODE_F2); // vk_f2
keymap.put(0x72, KeyEvent.KEYCODE_F3); // vk_f3
keymap.put(0x73, KeyEvent.KEYCODE_F4); // vk_f4
keymap.put(0x74, KeyEvent.KEYCODE_F5); // vk_f5
keymap.put(0x75, KeyEvent.KEYCODE_F6); // vk_f6
keymap.put(0x76, KeyEvent.KEYCODE_F7); // vk_f7
keymap.put(0x77, KeyEvent.KEYCODE_F8); // vk_f8
keymap.put(0x78, KeyEvent.KEYCODE_F9); // vk_f9
keymap.put(0x79, KeyEvent.KEYCODE_F10); // vk_f10
keymap.put(0x7a, KeyEvent.KEYCODE_F11); // vk_f11
keymap.put(0x7b, KeyEvent.KEYCODE_F12); // vk_f12
// bind to the monitor service
Intent intent = new Intent("com.five_ten_sg.connectbot.monitor.MonitorService");
parent.bindService(intent, monitor_connection, Context.BIND_AUTO_CREATE);
Log.i(TAG, "constructor");
}
public void Disconnect() {
if (monitor_reader != null) monitor_reader.closing();
try {
if (monitor_out != null) monitor_out.close();
if (monitor_in != null) monitor_in.close();
if (monitor_socket != null) monitor_socket.close();
Log.i(TAG, "disconnected from monitor socket");
}
catch (IOException e) {
Log.e(TAG, "exception in Disconnect() closing sockets", e);
}
monitor_reader = null;
monitor_out = null;
monitor_in = null;
monitor_socket = null;
if (bound != null) parent.unbindService(monitor_connection);
monitor_connection = null;
}
public char[] bytesToChars(byte[] b, int len) {
char[] c = new char[len >> 1];
int bp = 0;
for (int i = 0; i < c.length; i++) {
byte b1 = b[bp++];
byte b2 = b[bp++];
c[i] = (char)(((b1 & 0x00FF) << 8) + (b2 & 0x00FF));
}
return c;
}
public byte[] charsToBytes(char[] c) {
byte[] b = new byte[c.length << 1];
int bp = 0;
for (int i = 0; i < c.length; i++) {
b[bp++] = (byte)((c[i] & 0xff00) >> 8);
b[bp++] = (byte)(c[i] & 0x00ff);
}
return b;
}
public synchronized void monitorWrite(char cmd, char[] c) {
try {
if (monitor_out != null) {
c[0] = (char)(c.length - 1); // number of chars following
c[1] = cmd;
//Log.i(TAG, String.format("sending %d command", (int)cmd));
monitor_out.write(charsToBytes(c));
}
}
catch (IOException e) {
Log.i(TAG, "exception in monitorWrite(), monitor died or closed the socket", e);
try {
monitor_out.close();
}
catch (IOException ee) {
Log.e(TAG, "exception in monitorWrite() closing output stream", ee);
}
monitor_out = null;
}
};
public void sendScreen(char cmd) {
char lines = (char)(buffer.height & 0x0000ffff);
char columns = (char)(buffer.width & 0x0000ffff);
char[] arg = new char[4 + lines * columns];
arg[2] = lines;
arg[3] = columns;
int base = 4;
for (int i = 0; i < lines; i++) {
System.arraycopy(buffer.charArray[buffer.screenBase + i], 0, arg, base, columns);
base += columns;
}
monitorWrite(cmd, arg);
}
public synchronized void activate() {
sendScreen(MONITOR_CMD_ACTIVATE);
}
public synchronized void hostData(byte[] b) {
for (int i = 0; i < b.length; i++) {
hostData((int)b[i] & 0xff);
}
}
public synchronized void hostData(int b) {
char[] arg = new char[3];
arg[2] = (char)(b & 0x0000ffff);
monitorWrite(MONITOR_CMD_HOSTDATA, arg);
}
public synchronized void cursorMove(int l, int c) {
char[] arg = new char[4];
arg[2] = (char)(l & 0x0000ffff);
arg[3] = (char)(c & 0x0000ffff);
monitorWrite(MONITOR_CMD_CURSORMOVE, arg);
}
public synchronized void testChanged() {
if (modified) {
modified = false;
sendScreen(MONITOR_CMD_SCREENCHANGE);
}
}
public synchronized void screenChanged(int llow, int lhigh, int clow, int chigh) {
if ((start_line <= lhigh) && (llow <= end_line) && (start_column <= chigh) && (clow <= end_column)) {
modified = true;
}
}
public synchronized void screenChanged(int l, int c) {
screenChanged(l, l, c, c);
}
public synchronized void setField(int l, int c, char[] data, int offset) {
Log.i(TAG, "setField()");
byte[] d = charsToBytes(data);
byte[] b = new byte[d.length - offset];
System.arraycopy(d, offset, b, 0, d.length - offset);
buffer.write(b);
}
public synchronized void getField(int l, int c, int len) {
Log.i(TAG, "getField()");
char[] arg2 = new char[4 + len];
arg2[2] = (char)(l & 0x0000ffff);
arg2[3] = (char)(c & 0x0000ffff);
int base = 4;
System.arraycopy(buffer.charArray[buffer.screenBase + l], c, arg2, base, len);
monitorWrite(MONITOR_CMD_FIELDVALUE, arg2);
}
public synchronized void screenWatch(int l, int c, int len) {
Log.i(TAG, "screenWatch()");
start_line = l;
end_line = l;
start_column = c;
end_column = c + len - 1;
}
public synchronized void depress(int vk_key) {
Log.i(TAG, String.format("depress() %d", vk_key));
Integer x = keymap.get(new Integer(vk_key));
if (x != null) {
KeyEvent event = new KeyEvent(KeyEvent.ACTION_DOWN, x.intValue());
keyListener.onKey(view, event.getKeyCode(), event);
}
}
}