annotate src/com/five_ten_sg/connectbot/service/TerminalMonitor.java @ 86:213153ca62a2

convert ctrl keys to virtual keys; use proper android home directory
author Carl Byington <carl@five-ten-sg.com>
date Mon, 16 Jun 2014 11:31:58 -0700
parents 01d939969b10
children 9204fe526e65
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 package com.five_ten_sg.connectbot.service;
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2
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3 import android.content.ComponentName;
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4 import android.content.Context;
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5 import android.content.Intent;
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6 import android.content.ServiceConnection;
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7 import android.os.IBinder;
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8 import android.util.Log;
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9 import android.view.KeyEvent;
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10 import android.view.View;
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11 import de.mud.terminal.vt320;
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12 import java.io.IOException;
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13 import java.io.InputStream;
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14 import java.io.OutputStream;
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15 import java.net.InetAddress;
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16 import java.net.Socket;
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17 import java.nio.charset.Charset;
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18 import java.util.HashMap;
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19 import java.util.concurrent.ArrayBlockingQueue;
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20 import java.util.concurrent.BlockingQueue;
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21 import java.util.concurrent.ConcurrentHashMap;
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22
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23 public class TerminalMonitor {
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24 public final static String TAG = "ConnectBot.TerminalMonitor";
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25
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26 public static final char MONITOR_CMD_INIT = 0;
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27 public static final char MONITOR_CMD_ACTIVATE = 1;
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28 public static final char MONITOR_CMD_HOSTDATA = 2;
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29 public static final char MONITOR_CMD_CURSORMOVE = 3;
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30 public static final char MONITOR_CMD_SCREENCHANGE = 4;
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31 public static final char MONITOR_CMD_FIELDVALUE = 5;
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32 public static final char MONITOR_CMD_SETFIELD = 5;
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33 public static final char MONITOR_CMD_GETFIELD = 6;
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34 public static final char MONITOR_CMD_SCREENWATCH = 7;
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35 public static final char MONITOR_CMD_DEPRESS = 8;
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36
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37 private static final int MONITORPORT = 6000;
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38 private static final String LOCALHOST = "127.0.0.1";
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39
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40 private Context parent = null;
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41 private vt320 buffer = null;
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42 private TerminalKeyListener keyListener = null;
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43 private View view = null;
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44 private String init = null;
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45 private int start_line = 0; // monitor part of the screen for changes
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46 private int end_line = 500; // ""
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47 private int start_column = 0; // ""
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48 private int end_column = 500; // ""
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49 private boolean modified = false; // used to delay screen change notifications
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50 private boolean moved = false; // used to delay cursor moved notifications
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51 private int to_line = 0; // ""
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52 private int to_column = 0; // ""
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53 private HashMap<Integer,Integer> keymap = null;
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54 private IBinder bound = null;
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55 private Socket monitor_socket = null;
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56 private InputStream monitor_in = null;
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57 private OutputStream monitor_out = null;
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58 private MyReader monitor_reader = null;
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59 private BlockingQueue<char[]> pending_commands = new ArrayBlockingQueue<char[]>(100);
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60 private MyServiceConnection monitor_connection = new MyServiceConnection();
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61
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62 class MyReader extends Thread {
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63 private InputStream monitor_in;
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64 private byte[] b;
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65 private boolean is_closing = false;
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66
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67 public MyReader(InputStream monitor_in) {
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68 this.monitor_in = monitor_in;
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69 b = new byte[100];
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70 Log.i(TAG, "MyReader constructor");
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71 }
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72
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73 public void closing() {
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74 is_closing = true;
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75 }
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76
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77 private char[] forceRead(int len) throws IOException {
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78 int len2 = len * 2;
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79 int off = 0;
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80
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81 if (b.length < len2) b = new byte[len2];
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82
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83 while (off < len2) {
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84 int l = monitor_in.read(b, off, len2 - off);
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85
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86 if (l < 0) throw new IOException("eof");
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87
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88 off += l;
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89 }
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90
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91 return bytesToChars(b, len2);
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92 }
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93
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94 public void run() {
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95 while (true) {
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96 try {
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97 char[] len = forceRead(1);
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98 char[] packet = forceRead(len[0]);
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99 char cmd = packet[0];
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100 Log.i(TAG, String.format("received %d command", (int)cmd));
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101
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102 switch (cmd) {
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103 case MONITOR_CMD_SETFIELD:
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104 if (packet.length >= 4)
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105 setField(packet[1], packet[2], packet, 3);
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106 break;
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107
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108 case MONITOR_CMD_GETFIELD:
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109 if (packet.length == 4)
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110 getField(packet[1], packet[2], packet[3]);
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111 break;
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112
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113 case MONITOR_CMD_SCREENWATCH:
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114 if (packet.length == 4)
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115 screenWatch(packet[1], packet[2], packet[3]);
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116 break;
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117
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118 case MONITOR_CMD_DEPRESS:
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119 if (packet.length == 2)
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120 depress(packet[1]);
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121 break;
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122
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123 default:
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124 break;
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125 }
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126 }
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127 catch (IOException e) {
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128 if (!is_closing) Log.e(TAG, "exception in MyReader.run()", e);
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129
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130 break;
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131 }
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132 }
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133 }
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134 }
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135
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136 class MyServiceConnection implements ServiceConnection {
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137 public void onServiceConnected(ComponentName className, IBinder service) {
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138 bound = service;
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139 Log.i(TAG, "bound to service");
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140
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141 try {
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142 InetAddress serverAddr = InetAddress.getByName(LOCALHOST);
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143 monitor_socket = new Socket(serverAddr, MONITORPORT);
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144 monitor_in = monitor_socket.getInputStream();
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145 monitor_out = monitor_socket.getOutputStream();
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146 Log.i(TAG, "connected to monitor socket, send init " + init);
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147 monitor_reader = new MyReader(monitor_in);
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148 monitor_reader.start();
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149 String x = " " + init;
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150 monitorWrite(MONITOR_CMD_INIT, x.toCharArray());
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151 char [] c;
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152 while (true) {
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153 c = pending_commands.poll();
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154 if (c == null) break;
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155 monitorWrite(c[1], c);
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156 }
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157 }
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158 catch (IOException e) {
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159 Log.e(TAG, "exception in onServiceConnected()", e);
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160 }
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161 }
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162 public void onServiceDisconnected(ComponentName classNam) {
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163 bound = null;
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164 Log.i(TAG, "unbound from service");
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165 }
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166 };
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167
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168
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diff changeset
169 public TerminalMonitor(Context parent, vt320 buffer, TerminalKeyListener keyListener, View view, String init) {
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170 this.parent = parent;
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171 this.buffer = buffer;
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172 this.keyListener = keyListener;
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173 this.view = view;
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174 this.init = init;
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175
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176 // setup the windows->android keymapping
19
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177 // http://msdn.microsoft.com/en-us/library/windows/desktop/dd375731
0
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178 // http://developer.android.com/reference/android/view/KeyEvent.html
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179 keymap = new HashMap<Integer,Integer>();
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180 keymap.put(0x08, KeyEvent.KEYCODE_BACK); // vk_back
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181 keymap.put(0x09, KeyEvent.KEYCODE_TAB); // vk_tab
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182 keymap.put(0x0d, KeyEvent.KEYCODE_ENTER); // vk_return
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183 keymap.put(0x1b, KeyEvent.KEYCODE_ESCAPE); // vk_escape
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184 keymap.put(0x21, KeyEvent.KEYCODE_PAGE_UP); // vk_prior
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185 keymap.put(0x22, KeyEvent.KEYCODE_PAGE_DOWN); // vk_next
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186 keymap.put(0x23, KeyEvent.KEYCODE_MOVE_END); // vk_end
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187 keymap.put(0x24, KeyEvent.KEYCODE_MOVE_HOME); // vk_home
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188 keymap.put(0x25, KeyEvent.KEYCODE_DPAD_LEFT); // vk_left
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189 keymap.put(0x26, KeyEvent.KEYCODE_DPAD_UP); // vk_up
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190 keymap.put(0x27, KeyEvent.KEYCODE_DPAD_RIGHT); // vk_right
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191 keymap.put(0x28, KeyEvent.KEYCODE_DPAD_DOWN); // vk_down
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192 keymap.put(0x2d, KeyEvent.KEYCODE_INSERT); // vk_insert
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193 keymap.put(0x2e, KeyEvent.KEYCODE_DEL); // vk_delete
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194 keymap.put(0x70, KeyEvent.KEYCODE_F1); // vk_f1
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195 keymap.put(0x71, KeyEvent.KEYCODE_F2); // vk_f2
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196 keymap.put(0x72, KeyEvent.KEYCODE_F3); // vk_f3
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197 keymap.put(0x73, KeyEvent.KEYCODE_F4); // vk_f4
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198 keymap.put(0x74, KeyEvent.KEYCODE_F5); // vk_f5
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199 keymap.put(0x75, KeyEvent.KEYCODE_F6); // vk_f6
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200 keymap.put(0x76, KeyEvent.KEYCODE_F7); // vk_f7
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201 keymap.put(0x77, KeyEvent.KEYCODE_F8); // vk_f8
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202 keymap.put(0x78, KeyEvent.KEYCODE_F9); // vk_f9
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203 keymap.put(0x79, KeyEvent.KEYCODE_F10); // vk_f10
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204 keymap.put(0x7a, KeyEvent.KEYCODE_F11); // vk_f11
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205 keymap.put(0x7b, KeyEvent.KEYCODE_F12); // vk_f12
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206
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207 // bind to the monitor service
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208 Intent intent = new Intent("com.five_ten_sg.connectbot.monitor.MonitorService");
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209 parent.bindService(intent, monitor_connection, Context.BIND_AUTO_CREATE);
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210 Log.i(TAG, "constructor");
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211 }
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212
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213
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214 public void Disconnect() {
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215 if (monitor_reader != null) monitor_reader.closing();
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216
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diff changeset
217 try {
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Carl Byington <carl@five-ten-sg.com>
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218 if (monitor_out != null) monitor_out.close();
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219
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220 if (monitor_in != null) monitor_in.close();
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221
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Carl Byington <carl@five-ten-sg.com>
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222 if (monitor_socket != null) monitor_socket.close();
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223
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Carl Byington <carl@five-ten-sg.com>
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224 Log.i(TAG, "disconnected from monitor socket");
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
225 }
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
226 catch (IOException e) {
0ce5cc452d02 initial version
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parents:
diff changeset
227 Log.e(TAG, "exception in Disconnect() closing sockets", e);
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
228 }
0ce5cc452d02 initial version
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parents:
diff changeset
229
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230 monitor_reader = null;
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231 monitor_out = null;
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232 monitor_in = null;
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233 monitor_socket = null;
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parents:
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234
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Carl Byington <carl@five-ten-sg.com>
parents:
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235 if (bound != null) parent.unbindService(monitor_connection);
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236
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237 monitor_connection = null;
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parents:
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238 }
0ce5cc452d02 initial version
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parents:
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239
0ce5cc452d02 initial version
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parents:
diff changeset
240
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
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241 public char[] bytesToChars(byte[] b, int len) {
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Carl Byington <carl@five-ten-sg.com>
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242 char[] c = new char[len >> 1];
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Carl Byington <carl@five-ten-sg.com>
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243 int bp = 0;
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parents:
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244
0ce5cc452d02 initial version
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diff changeset
245 for (int i = 0; i < c.length; i++) {
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246 byte b1 = b[bp++];
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Carl Byington <carl@five-ten-sg.com>
parents:
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247 byte b2 = b[bp++];
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248 c[i] = (char)(((b1 & 0x00FF) << 8) + (b2 & 0x00FF));
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249 }
0ce5cc452d02 initial version
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parents:
diff changeset
250
0ce5cc452d02 initial version
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251 return c;
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
252 }
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
253
0ce5cc452d02 initial version
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parents:
diff changeset
254
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
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diff changeset
255 public byte[] charsToBytes(char[] c) {
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parents:
diff changeset
256 byte[] b = new byte[c.length << 1];
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257 int bp = 0;
0ce5cc452d02 initial version
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parents:
diff changeset
258
0ce5cc452d02 initial version
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parents:
diff changeset
259 for (int i = 0; i < c.length; i++) {
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parents:
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260 b[bp++] = (byte)((c[i] & 0xff00) >> 8);
0ce5cc452d02 initial version
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parents:
diff changeset
261 b[bp++] = (byte)(c[i] & 0x00ff);
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
262 }
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
263
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
264 return b;
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
265 }
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
266
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
267
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
268 public synchronized void monitorWrite(char cmd, char[] c) {
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
269 try {
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
270 if (monitor_out != null) {
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
271 c[0] = (char)(c.length - 1); // number of chars following
0ce5cc452d02 initial version
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parents:
diff changeset
272 c[1] = cmd;
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
273 //Log.i(TAG, String.format("sending %d command", (int)cmd));
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
274 monitor_out.write(charsToBytes(c));
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
275 }
15
1588e359a972 queue pending monitor commands until socket is open
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
276 else {
1588e359a972 queue pending monitor commands until socket is open
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
277 c[1] = cmd;
1588e359a972 queue pending monitor commands until socket is open
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
278 pending_commands.put(c);
1588e359a972 queue pending monitor commands until socket is open
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
279 }
1588e359a972 queue pending monitor commands until socket is open
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
280 }
1588e359a972 queue pending monitor commands until socket is open
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
281 catch (InterruptedException e) {
1588e359a972 queue pending monitor commands until socket is open
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
282 Log.e(TAG, "exception in monitorWrite()", e);
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
283 }
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
284 catch (IOException e) {
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
285 Log.i(TAG, "exception in monitorWrite(), monitor died or closed the socket", e);
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
286
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
287 try {
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
288 monitor_out.close();
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
289 }
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
290 catch (IOException ee) {
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
291 Log.e(TAG, "exception in monitorWrite() closing output stream", ee);
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
292 }
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
293
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
294 monitor_out = null;
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
295 }
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
296 };
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
297
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
298 public void sendScreen(char cmd) {
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
299 char lines = (char)(buffer.height & 0x0000ffff);
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
300 char columns = (char)(buffer.width & 0x0000ffff);
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
301 char[] arg = new char[4 + lines * columns];
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
302 arg[2] = lines;
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
303 arg[3] = columns;
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
304 int base = 4;
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
305 for (int i = 0; i < lines; i++) {
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
306 System.arraycopy(buffer.charArray[buffer.screenBase + i], 0, arg, base, columns);
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
307 base += columns;
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
308 }
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
309 monitorWrite(cmd, arg);
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
310 }
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
311
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
312 public synchronized void activate() {
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
313 sendScreen(MONITOR_CMD_ACTIVATE);
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
314 }
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
315
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
316 public synchronized void hostData(byte[] b) {
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
317 for (int i = 0; i < b.length; i++) {
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
318 hostData((int)b[i] & 0xff);
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
319 }
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
320 }
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
321
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
322 public synchronized void hostData(int b) {
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
323 char[] arg = new char[3];
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
324 arg[2] = (char)(b & 0x0000ffff);
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
325 monitorWrite(MONITOR_CMD_HOSTDATA, arg);
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
326 }
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
327
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
328 public synchronized void cursorMove(int l, int c) {
16
48a8daea9221 delay sending cursor move notifications until the host is quiet
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329 moved = true;
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330 to_line = l;
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331 to_column = c;
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332 }
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333
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334 public void cursorMoved() {
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335 char[] arg = new char[4];
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336 arg[2] = (char)(to_line & 0x0000ffff);
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337 arg[3] = (char)(to_column & 0x0000ffff);
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338 monitorWrite(MONITOR_CMD_CURSORMOVE, arg);
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339 }
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340
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341 public synchronized void testChanged() {
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342 if (modified) {
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343 modified = false;
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344 sendScreen(MONITOR_CMD_SCREENCHANGE);
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345 }
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346 if (moved) {
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347 moved = false;
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348 cursorMoved();
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349 }
0
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350 }
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351
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352 public synchronized void screenChanged(int llow, int lhigh, int clow, int chigh) {
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353 if ((start_line <= lhigh) && (llow <= end_line) && (start_column <= chigh) && (clow <= end_column)) {
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354 modified = true;
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355 }
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356 }
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357
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358 public synchronized void screenChanged(int l, int c) {
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359 screenChanged(l, l, c, c);
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360 }
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361
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362 public synchronized void setField(int l, int c, char[] data, int offset) {
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363 Log.i(TAG, "setField()");
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364 byte[] b = new byte[data.length - offset];
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365 int i;
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366 for (i=0; i<b.length; i++) {
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367 b[i] = (byte)(data[i+offset] & 0x00ff);
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368 }
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369 buffer.write(b);
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370 }
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371
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372 public synchronized void getField(int l, int c, int len) {
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373 Log.i(TAG, "getField()");
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374 char[] arg2 = new char[4 + len];
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375 arg2[2] = (char)(l & 0x0000ffff);
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376 arg2[3] = (char)(c & 0x0000ffff);
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377 int base = 4;
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378 System.arraycopy(buffer.charArray[buffer.screenBase + l], c, arg2, base, len);
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379 monitorWrite(MONITOR_CMD_FIELDVALUE, arg2);
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380 }
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381
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382 public synchronized void screenWatch(int l, int c, int len) {
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383 Log.i(TAG, "screenWatch()");
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384 start_line = l;
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385 end_line = l;
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386 start_column = c;
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387 end_column = c + len - 1;
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388 }
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389
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390 public synchronized void depress(int vk_key) {
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391 Log.i(TAG, String.format("depress() %d", vk_key));
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392 Integer x = keymap.get(new Integer(vk_key));
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393 if (x != null) {
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394 KeyEvent event = new KeyEvent(KeyEvent.ACTION_DOWN, x.intValue());
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395 keyListener.onKey(view, event.getKeyCode(), event);
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396 }
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397 }
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398 }