Mercurial > 510Connectbot
annotate src/com/five_ten_sg/connectbot/service/TerminalMonitor.java @ 429:d5f6d6886113
bump version number
| author | Carl Byington <carl@five-ten-sg.com> |
|---|---|
| date | Sun, 14 Dec 2014 19:04:20 -0800 |
| parents | b284b8f9e535 |
| children |
| rev | line source |
|---|---|
| 0 | 1 package com.five_ten_sg.connectbot.service; |
| 2 | |
| 3 import android.content.ComponentName; | |
| 4 import android.content.Context; | |
| 5 import android.content.Intent; | |
| 6 import android.content.ServiceConnection; | |
| 155 | 7 import android.net.Uri; |
| 0 | 8 import android.os.IBinder; |
| 9 import android.util.Log; | |
| 10 import android.view.View; | |
| 11 import de.mud.terminal.vt320; | |
| 12 import java.io.IOException; | |
| 13 import java.io.InputStream; | |
| 14 import java.io.OutputStream; | |
| 15 import java.net.InetAddress; | |
| 16 import java.net.Socket; | |
| 17 import java.nio.charset.Charset; | |
|
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18 import java.util.Arrays; |
| 0 | 19 import java.util.HashMap; |
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20 import java.util.concurrent.ArrayBlockingQueue; |
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21 import java.util.concurrent.BlockingQueue; |
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22 import java.util.concurrent.ConcurrentHashMap; |
| 0 | 23 |
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24 import com.five_ten_sg.connectbot.ConsoleActivity; |
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25 import com.five_ten_sg.connectbot.bean.HostBean; |
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26 |
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27 |
| 0 | 28 public class TerminalMonitor { |
| 29 public final static String TAG = "ConnectBot.TerminalMonitor"; | |
| 30 | |
|
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31 public static final char MONITOR_CMD_INIT = 0; |
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32 public static final char MONITOR_CMD_ACTIVATE = 1; |
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33 public static final char MONITOR_CMD_KEYSTATE = 2; |
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34 public static final char MONITOR_CMD_CURSORMOVE = 3; |
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35 public static final char MONITOR_CMD_SCREENCHANGE = 4; |
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36 public static final char MONITOR_CMD_FIELDVALUE = 5; |
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37 public static final char MONITOR_CMD_SETFIELD = 5; |
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38 public static final char MONITOR_CMD_GETFIELD = 6; |
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39 public static final char MONITOR_CMD_SCREENWATCH = 7; |
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40 public static final char MONITOR_CMD_DEPRESS = 8; |
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41 public static final char MONITOR_CMD_SHOWURL = 9; |
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42 public static final char MONITOR_CMD_SWITCHSESSION = 10; |
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43 public static final char MONITOR_CMD_CURSORREQUEST = 11; |
| 0 | 44 |
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45 public static final String[] commands = { |
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46 "cmd_init", |
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47 "cmd_activate", |
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48 "cmd_keystate", |
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49 "cmd_cursormove", |
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50 "cmd_screenchange", |
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51 "cmd_fieldvalue/setfield", |
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52 "cmd_getfield", |
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53 "cmd_screenwatch", |
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54 "cmd_depress", |
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55 "cmd_showurl", |
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56 "cmd_switchsession", |
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57 "cmd_cursorrequest" |
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58 }; |
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59 |
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60 public static final char CURSOR_REQUESTED = 0; |
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61 public static final char CURSOR_SCREEN_CHANGE = 1; |
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62 public static final char CURSOR_USER_KEY = 2; |
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63 |
| 0 | 64 private static final int MONITORPORT = 6000; |
| 65 private static final String LOCALHOST = "127.0.0.1"; | |
| 66 | |
| 67 private Context parent = null; | |
| 68 private vt320 buffer = null; | |
| 69 private View view = null; | |
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70 private HostBean host = null; |
| 0 | 71 private String init = null; |
| 72 private int start_line = 0; // monitor part of the screen for changes | |
| 73 private int end_line = 500; // "" | |
| 74 private int start_column = 0; // "" | |
| 75 private int end_column = 500; // "" | |
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76 private boolean modified = false; // used to delay screen change notifications |
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77 private boolean moved = false; // used to delay cursor moved notifications |
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78 private int to_line = 0; // "" |
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79 private int to_column = 0; // "" |
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80 private HashMap<Integer, Integer> keymap = null; // map MS VK_ keys to vt320 virtual keys |
| 0 | 81 private IBinder bound = null; |
| 82 private Socket monitor_socket = null; | |
| 83 private InputStream monitor_in = null; | |
| 84 private OutputStream monitor_out = null; | |
| 85 private MyReader monitor_reader = null; | |
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86 private BlockingQueue<char[]> pending_commands = new ArrayBlockingQueue<char[]>(100); |
| 0 | 87 private MyServiceConnection monitor_connection = new MyServiceConnection(); |
| 88 | |
| 89 class MyReader extends Thread { | |
| 90 private InputStream monitor_in; | |
| 91 private byte[] b; | |
| 92 private boolean is_closing = false; | |
| 93 | |
| 94 public MyReader(InputStream monitor_in) { | |
| 95 this.monitor_in = monitor_in; | |
| 96 b = new byte[100]; | |
| 97 Log.i(TAG, "MyReader constructor"); | |
| 98 } | |
| 99 | |
| 100 public void closing() { | |
| 101 is_closing = true; | |
| 102 } | |
| 103 | |
| 104 private char[] forceRead(int len) throws IOException { | |
| 105 int len2 = len * 2; | |
| 106 int off = 0; | |
| 107 | |
| 108 if (b.length < len2) b = new byte[len2]; | |
| 109 | |
| 110 while (off < len2) { | |
| 111 int l = monitor_in.read(b, off, len2 - off); | |
| 112 | |
| 113 if (l < 0) throw new IOException("eof"); | |
| 114 | |
| 115 off += l; | |
| 116 } | |
| 117 | |
| 118 return bytesToChars(b, len2); | |
| 119 } | |
| 120 | |
| 121 public void run() { | |
| 122 while (true) { | |
| 123 try { | |
| 124 char[] len = forceRead(1); | |
| 125 char[] packet = forceRead(len[0]); | |
| 126 char cmd = packet[0]; | |
| 425 | 127 Log.i(TAG, String.format("received %s", commands[cmd])); |
| 0 | 128 |
| 129 switch (cmd) { | |
| 130 case MONITOR_CMD_SETFIELD: | |
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131 if (packet.length >= 3) |
| 0 | 132 setField(packet[1], packet[2], packet, 3); |
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133 |
| 0 | 134 break; |
| 135 | |
| 136 case MONITOR_CMD_GETFIELD: | |
| 137 if (packet.length == 4) | |
| 138 getField(packet[1], packet[2], packet[3]); | |
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139 |
| 0 | 140 break; |
| 141 | |
| 142 case MONITOR_CMD_SCREENWATCH: | |
| 143 if (packet.length == 4) | |
| 144 screenWatch(packet[1], packet[2], packet[3]); | |
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145 |
| 0 | 146 break; |
| 147 | |
| 148 case MONITOR_CMD_DEPRESS: | |
| 149 if (packet.length == 2) | |
| 150 depress(packet[1]); | |
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151 |
| 0 | 152 break; |
| 153 | |
| 155 | 154 case MONITOR_CMD_SHOWURL: |
| 155 if (packet.length > 1) | |
| 156 showUrl(packet, 1); | |
| 157 | |
| 158 break; | |
| 159 | |
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160 case MONITOR_CMD_SWITCHSESSION: |
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161 if (packet.length == 1) |
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162 switchSession(); |
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163 |
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164 break; |
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165 |
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166 case MONITOR_CMD_CURSORREQUEST: |
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167 if (packet.length == 1) |
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168 cursorRequest(); |
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169 |
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170 break; |
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171 |
| 0 | 172 default: |
| 173 break; | |
| 174 } | |
| 175 } | |
| 176 catch (IOException e) { | |
| 177 if (!is_closing) Log.e(TAG, "exception in MyReader.run()", e); | |
| 178 | |
| 179 break; | |
| 180 } | |
| 181 } | |
| 182 } | |
| 183 } | |
| 184 | |
| 185 class MyServiceConnection implements ServiceConnection { | |
| 186 public void onServiceConnected(ComponentName className, IBinder service) { | |
| 187 bound = service; | |
| 188 Log.i(TAG, "bound to service"); | |
| 189 | |
| 190 try { | |
| 191 InetAddress serverAddr = InetAddress.getByName(LOCALHOST); | |
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192 int tries = 0; |
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193 while (tries < 10) { |
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194 try { |
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195 Thread.sleep(100); |
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196 monitor_socket = new Socket(serverAddr, MONITORPORT); |
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197 break; |
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198 } |
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199 catch (Exception e) { |
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200 monitor_socket = null; |
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201 Log.e(TAG, "exception connecting to monitor socket", e); |
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202 tries = tries + 1; |
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203 } |
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204 } |
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205 if (monitor_socket != null) { |
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206 Log.i(TAG, "connected to monitor socket, send init " + init); |
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207 monitor_in = monitor_socket.getInputStream(); |
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208 monitor_out = monitor_socket.getOutputStream(); |
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209 monitor_reader = new MyReader(monitor_in); |
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210 monitor_reader.start(); |
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211 String x = " " + init; |
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212 monitorWrite(MONITOR_CMD_INIT, x.toCharArray()); |
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213 char [] c; |
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214 |
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215 while (true) { |
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216 c = pending_commands.poll(); |
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217 |
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218 if (c == null) break; |
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219 |
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220 monitorWrite(c[1], c); |
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221 } |
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222 } |
| 0 | 223 } |
| 224 catch (IOException e) { | |
| 225 Log.e(TAG, "exception in onServiceConnected()", e); | |
| 226 } | |
| 227 } | |
| 228 public void onServiceDisconnected(ComponentName classNam) { | |
| 229 bound = null; | |
| 230 Log.i(TAG, "unbound from service"); | |
| 231 } | |
| 232 }; | |
| 233 | |
| 234 | |
|
172
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235 public TerminalMonitor(Context parent, vt320 buffer, View view, HostBean host, String init) { |
| 0 | 236 this.parent = parent; |
| 237 this.buffer = buffer; | |
| 238 this.view = view; | |
|
172
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239 this.host = host; |
| 0 | 240 this.init = init; |
| 241 // setup the windows->android keymapping | |
|
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242 // http://msdn.microsoft.com/en-us/library/windows/desktop/dd375731 |
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243 keymap = new HashMap<Integer, Integer>(); |
|
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244 keymap.put(0x08, vt320.KEY_BACK_SPACE); // vk_back |
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245 keymap.put(0x09, vt320.KEY_TAB); // vk_tab |
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246 keymap.put(0x0d, vt320.KEY_ENTER); // vk_return |
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247 keymap.put(0x1b, vt320.KEY_ESCAPE); // vk_escape |
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248 keymap.put(0x21, vt320.KEY_PAGE_UP); // vk_prior |
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249 keymap.put(0x22, vt320.KEY_PAGE_DOWN); // vk_next |
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250 keymap.put(0x23, vt320.KEY_END); // vk_end |
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251 keymap.put(0x24, vt320.KEY_HOME); // vk_home |
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252 keymap.put(0x25, vt320.KEY_LEFT); // vk_left |
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253 keymap.put(0x26, vt320.KEY_UP); // vk_up |
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254 keymap.put(0x27, vt320.KEY_RIGHT); // vk_right |
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255 keymap.put(0x28, vt320.KEY_DOWN); // vk_down |
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256 keymap.put(0x2d, vt320.KEY_INSERT); // vk_insert |
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257 keymap.put(0x2e, vt320.KEY_DELETE); // vk_delete |
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258 keymap.put(0x70, vt320.KEY_F1); // vk_f1 |
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259 keymap.put(0x71, vt320.KEY_F2); // vk_f2 |
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260 keymap.put(0x72, vt320.KEY_F3); // vk_f3 |
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261 keymap.put(0x73, vt320.KEY_F4); // vk_f4 |
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262 keymap.put(0x74, vt320.KEY_F5); // vk_f5 |
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263 keymap.put(0x75, vt320.KEY_F6); // vk_f6 |
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264 keymap.put(0x76, vt320.KEY_F7); // vk_f7 |
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265 keymap.put(0x77, vt320.KEY_F8); // vk_f8 |
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266 keymap.put(0x78, vt320.KEY_F9); // vk_f9 |
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267 keymap.put(0x79, vt320.KEY_F10); // vk_f10 |
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268 keymap.put(0x7a, vt320.KEY_F11); // vk_f11 |
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269 keymap.put(0x7b, vt320.KEY_F12); // vk_f12 |
| 176 | 270 keymap.put(0x7c, vt320.KEY_F13); // vk_f13 |
| 271 keymap.put(0x7d, vt320.KEY_F14); // vk_f14 | |
| 272 keymap.put(0x7e, vt320.KEY_F15); // vk_f15 | |
| 273 keymap.put(0x7f, vt320.KEY_F16); // vk_f16 | |
| 274 keymap.put(0x80, vt320.KEY_F17); // vk_f17 | |
| 275 keymap.put(0x81, vt320.KEY_F18); // vk_f18 | |
| 276 keymap.put(0x82, vt320.KEY_F19); // vk_f19 | |
| 277 keymap.put(0x83, vt320.KEY_F20); // vk_f20 | |
| 278 keymap.put(0x84, vt320.KEY_F21); // vk_f21 | |
| 279 keymap.put(0x85, vt320.KEY_F22); // vk_f22 | |
| 280 keymap.put(0x86, vt320.KEY_F23); // vk_f23 | |
| 281 keymap.put(0x87, vt320.KEY_F24); // vk_f24 | |
| 0 | 282 // bind to the monitor service |
| 283 Intent intent = new Intent("com.five_ten_sg.connectbot.monitor.MonitorService"); | |
| 284 parent.bindService(intent, monitor_connection, Context.BIND_AUTO_CREATE); | |
| 285 Log.i(TAG, "constructor"); | |
| 286 } | |
| 287 | |
| 288 | |
| 289 public void Disconnect() { | |
| 290 if (monitor_reader != null) monitor_reader.closing(); | |
|
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291 |
| 0 | 292 try { |
| 293 if (monitor_out != null) monitor_out.close(); | |
| 294 | |
| 295 if (monitor_in != null) monitor_in.close(); | |
| 296 | |
| 297 if (monitor_socket != null) monitor_socket.close(); | |
| 298 | |
| 299 Log.i(TAG, "disconnected from monitor socket"); | |
| 300 } | |
| 301 catch (IOException e) { | |
| 302 Log.e(TAG, "exception in Disconnect() closing sockets", e); | |
| 303 } | |
| 304 | |
| 305 monitor_reader = null; | |
| 306 monitor_out = null; | |
| 307 monitor_in = null; | |
| 308 monitor_socket = null; | |
| 309 | |
| 310 if (bound != null) parent.unbindService(monitor_connection); | |
| 311 | |
| 312 monitor_connection = null; | |
| 313 } | |
| 314 | |
| 315 | |
| 316 public char[] bytesToChars(byte[] b, int len) { | |
| 317 char[] c = new char[len >> 1]; | |
| 318 int bp = 0; | |
| 319 | |
| 320 for (int i = 0; i < c.length; i++) { | |
| 321 byte b1 = b[bp++]; | |
| 322 byte b2 = b[bp++]; | |
| 323 c[i] = (char)(((b1 & 0x00FF) << 8) + (b2 & 0x00FF)); | |
| 324 } | |
| 325 | |
| 326 return c; | |
| 327 } | |
| 328 | |
| 329 | |
| 330 public byte[] charsToBytes(char[] c) { | |
| 331 byte[] b = new byte[c.length << 1]; | |
| 332 int bp = 0; | |
| 333 | |
| 334 for (int i = 0; i < c.length; i++) { | |
| 335 b[bp++] = (byte)((c[i] & 0xff00) >> 8); | |
| 336 b[bp++] = (byte)(c[i] & 0x00ff); | |
| 337 } | |
| 338 | |
| 339 return b; | |
| 340 } | |
| 341 | |
| 342 | |
|
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343 public synchronized void monitorWrite(char cmd, char[] c) { |
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344 try { |
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345 if (monitor_out != null) { |
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346 c[0] = (char)(c.length - 1); // number of chars following |
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347 c[1] = cmd; |
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348 Log.i(TAG, String.format("sending %s", commands[cmd])); |
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349 monitor_out.write(charsToBytes(c)); |
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350 monitor_out.flush(); |
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351 } |
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352 else { |
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353 c[1] = cmd; |
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354 pending_commands.offer(c); |
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355 } |
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356 } |
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357 catch (IOException e) { |
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358 Log.i(TAG, "exception in monitorWrite(), monitor died or closed the socket", e); |
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359 |
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360 try { |
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361 monitor_out.close(); |
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362 } |
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363 catch (IOException ee) { |
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364 Log.e(TAG, "exception in monitorWrite() closing output stream", ee); |
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365 } |
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366 |
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367 monitor_out = null; |
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368 } |
| 0 | 369 }; |
| 370 | |
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371 public void resetWatch() { |
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372 start_line = 0; |
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373 end_line = 500; |
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374 start_column = 0; |
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375 end_column = 500; |
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376 }; |
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377 |
| 0 | 378 public void sendScreen(char cmd) { |
| 379 char lines = (char)(buffer.height & 0x0000ffff); | |
| 380 char columns = (char)(buffer.width & 0x0000ffff); | |
| 381 char[] arg = new char[4 + lines * columns]; | |
| 382 arg[2] = lines; | |
| 383 arg[3] = columns; | |
| 384 int base = 4; | |
|
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385 |
| 0 | 386 for (int i = 0; i < lines; i++) { |
| 387 System.arraycopy(buffer.charArray[buffer.screenBase + i], 0, arg, base, columns); | |
| 388 base += columns; | |
| 389 } | |
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390 |
| 0 | 391 monitorWrite(cmd, arg); |
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392 resetWatch(); |
| 0 | 393 } |
| 394 | |
| 395 public synchronized void activate() { | |
| 396 sendScreen(MONITOR_CMD_ACTIVATE); | |
|
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397 cursorMoved(CURSOR_SCREEN_CHANGE); |
| 0 | 398 } |
| 399 | |
|
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400 public synchronized void keyState(boolean down) { |
| 0 | 401 char[] arg = new char[3]; |
|
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402 arg[2] = (char)((down) ? 1 : 0); |
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403 monitorWrite(MONITOR_CMD_KEYSTATE, arg); |
| 0 | 404 } |
| 405 | |
| 406 public synchronized void cursorMove(int l, int c) { | |
|
229
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407 if ((to_line != l) || (to_column != c)) moved = true; |
| 307 | 408 |
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409 to_line = l; |
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410 to_column = c; |
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411 } |
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412 |
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413 public void cursorMoved(char why) { |
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414 char[] arg = new char[5]; |
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415 arg[2] = (char)(to_line & 0x0000ffff); |
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416 arg[3] = (char)(to_column & 0x0000ffff); |
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417 arg[4] = why; |
| 0 | 418 monitorWrite(MONITOR_CMD_CURSORMOVE, arg); |
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419 moved = false; |
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420 } |
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421 |
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422 public void testMoved() { |
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423 if (moved) cursorMoved(CURSOR_USER_KEY); |
| 0 | 424 } |
| 425 | |
| 426 public synchronized void testChanged() { | |
| 427 if (modified) { | |
| 428 modified = false; | |
| 429 sendScreen(MONITOR_CMD_SCREENCHANGE); | |
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430 cursorMoved(CURSOR_SCREEN_CHANGE); |
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431 } |
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432 else { |
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433 if (moved) cursorMoved(CURSOR_SCREEN_CHANGE); |
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434 } |
| 0 | 435 } |
| 436 | |
| 437 public synchronized void screenChanged(int llow, int lhigh, int clow, int chigh) { | |
| 438 if ((start_line <= lhigh) && (llow <= end_line) && (start_column <= chigh) && (clow <= end_column)) { | |
| 439 modified = true; | |
| 440 } | |
| 441 } | |
| 442 | |
| 443 public synchronized void screenChanged(int l, int c) { | |
| 444 screenChanged(l, l, c, c); | |
| 445 } | |
| 446 | |
| 447 public synchronized void setField(int l, int c, char[] data, int offset) { | |
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448 int len = data.length - offset; |
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449 char[] da = new char[len]; |
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450 System.arraycopy(data, offset, da, 0, len); |
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451 Log.i(TAG, String.format("setField(line %d, col %d, value %s)", l, c, new String(da))); |
| 307 | 452 |
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453 if ((l > 60000) || (c > 60000)) { |
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454 l = -1; |
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455 c = -1; |
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456 } |
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457 else { |
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458 // ignore setfield outside screen boundaries |
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459 if ((l >= buffer.height) || (c + len > buffer.width)) return; |
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460 } |
| 307 | 461 |
| 100 | 462 buffer.setField(l, c, da); |
| 0 | 463 } |
| 464 | |
| 155 | 465 public synchronized void showUrl(char [] data, int offset) { |
| 466 char[] da = new char[data.length - offset]; | |
| 307 | 467 System.arraycopy(data, offset, da, 0, data.length - offset); |
| 155 | 468 String url = new String(da); |
| 469 Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); | |
| 470 parent.startActivity(intent); | |
| 471 } | |
| 472 | |
| 0 | 473 public synchronized void getField(int l, int c, int len) { |
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474 Log.i(TAG, String.format("getField(line %d, col %d, len %d)", l, c, len)); |
| 0 | 475 char[] arg2 = new char[4 + len]; |
| 476 arg2[2] = (char)(l & 0x0000ffff); | |
| 477 arg2[3] = (char)(c & 0x0000ffff); | |
| 478 int base = 4; | |
| 307 | 479 |
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480 if ((l >= buffer.height) || (c + len > buffer.width)) { |
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481 Arrays.fill(arg2, base, base + len, ' '); |
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482 } |
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483 else { |
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484 System.arraycopy(buffer.charArray[buffer.screenBase + l], c, arg2, base, len); |
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485 } |
| 307 | 486 |
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487 char[] da = new char[len]; |
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488 System.arraycopy(arg2, base, da, 0, len); |
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489 Log.i(TAG, String.format("getField value %s", new String(da))); |
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490 |
| 0 | 491 monitorWrite(MONITOR_CMD_FIELDVALUE, arg2); |
| 492 } | |
| 493 | |
| 494 public synchronized void screenWatch(int l, int c, int len) { | |
| 425 | 495 Log.i(TAG, String.format("screenWatch(line %d, col %d, len %d)", l, c, len)); |
| 0 | 496 start_line = l; |
| 497 end_line = l; | |
| 498 start_column = c; | |
| 499 end_column = c + len - 1; | |
| 500 } | |
| 501 | |
| 502 public synchronized void depress(int vk_key) { | |
| 425 | 503 Log.i(TAG, String.format("depress(%d)", vk_key)); |
| 0 | 504 Integer x = keymap.get(new Integer(vk_key)); |
| 307 | 505 |
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506 if (x != null) buffer.keyDepressed(x, ' ', 0); |
| 0 | 507 } |
|
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508 |
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509 public synchronized void switchSession() { |
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510 Log.i(TAG, "switchSession()"); |
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511 Intent intent = new Intent(parent, ConsoleActivity.class); |
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512 intent.setAction(Intent.ACTION_VIEW); |
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513 intent.setData(host.getUri()); |
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514 parent.startActivity(intent); |
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515 } |
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516 |
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517 |
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518 public synchronized void cursorRequest() { |
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519 cursorMoved(CURSOR_REQUESTED); |
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520 } |
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521 |
| 0 | 522 } |