Mercurial > 510Connectbot
annotate src/com/five_ten_sg/connectbot/service/TerminalMonitor.java @ 247:1e1bb5468ebe
add host preference for fixed screen size
| author | Carl Byington <carl@five-ten-sg.com> |
|---|---|
| date | Mon, 14 Jul 2014 11:18:24 -0700 |
| parents | ea49747c5447 |
| children | 2bf2724d8610 |
| 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; | |
| 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; |
| 0 | 22 |
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23 import com.five_ten_sg.connectbot.ConsoleActivity; |
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24 import com.five_ten_sg.connectbot.bean.HostBean; |
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25 |
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26 |
| 0 | 27 public class TerminalMonitor { |
| 28 public final static String TAG = "ConnectBot.TerminalMonitor"; | |
| 29 | |
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30 public static final char MONITOR_CMD_INIT = 0; |
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31 public static final char MONITOR_CMD_ACTIVATE = 1; |
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32 public static final char MONITOR_CMD_KEYSTATE = 2; |
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33 public static final char MONITOR_CMD_CURSORMOVE = 3; |
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34 public static final char MONITOR_CMD_SCREENCHANGE = 4; |
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35 public static final char MONITOR_CMD_FIELDVALUE = 5; |
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36 public static final char MONITOR_CMD_SETFIELD = 5; |
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37 public static final char MONITOR_CMD_GETFIELD = 6; |
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38 public static final char MONITOR_CMD_SCREENWATCH = 7; |
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39 public static final char MONITOR_CMD_DEPRESS = 8; |
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40 public static final char MONITOR_CMD_SHOWURL = 9; |
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41 public static final char MONITOR_CMD_SWITCHSESSION = 10; |
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42 public static final char MONITOR_CMD_CURSORREQUEST = 11; |
| 0 | 43 |
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44 public static final char CURSOR_REQUESTED = 0; |
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45 public static final char CURSOR_SCREEN_CHANGE = 1; |
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46 public static final char CURSOR_USER_KEY = 2; |
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47 |
| 0 | 48 private static final int MONITORPORT = 6000; |
| 49 private static final String LOCALHOST = "127.0.0.1"; | |
| 50 | |
| 51 private Context parent = null; | |
| 52 private vt320 buffer = null; | |
| 53 private View view = null; | |
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54 private HostBean host = null; |
| 0 | 55 private String init = null; |
| 56 private int start_line = 0; // monitor part of the screen for changes | |
| 57 private int end_line = 500; // "" | |
| 58 private int start_column = 0; // "" | |
| 59 private int end_column = 500; // "" | |
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60 private boolean modified = false; // used to delay screen change notifications |
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61 private boolean moved = false; // used to delay cursor moved notifications |
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62 private int to_line = 0; // "" |
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63 private int to_column = 0; // "" |
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64 private HashMap<Integer, Integer> keymap = null; // map MS VK_ keys to vt320 virtual keys |
| 0 | 65 private IBinder bound = null; |
| 66 private Socket monitor_socket = null; | |
| 67 private InputStream monitor_in = null; | |
| 68 private OutputStream monitor_out = null; | |
| 69 private MyReader monitor_reader = null; | |
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70 private BlockingQueue<char[]> pending_commands = new ArrayBlockingQueue<char[]>(100); |
| 0 | 71 private MyServiceConnection monitor_connection = new MyServiceConnection(); |
| 72 | |
| 73 class MyReader extends Thread { | |
| 74 private InputStream monitor_in; | |
| 75 private byte[] b; | |
| 76 private boolean is_closing = false; | |
| 77 | |
| 78 public MyReader(InputStream monitor_in) { | |
| 79 this.monitor_in = monitor_in; | |
| 80 b = new byte[100]; | |
| 81 Log.i(TAG, "MyReader constructor"); | |
| 82 } | |
| 83 | |
| 84 public void closing() { | |
| 85 is_closing = true; | |
| 86 } | |
| 87 | |
| 88 private char[] forceRead(int len) throws IOException { | |
| 89 int len2 = len * 2; | |
| 90 int off = 0; | |
| 91 | |
| 92 if (b.length < len2) b = new byte[len2]; | |
| 93 | |
| 94 while (off < len2) { | |
| 95 int l = monitor_in.read(b, off, len2 - off); | |
| 96 | |
| 97 if (l < 0) throw new IOException("eof"); | |
| 98 | |
| 99 off += l; | |
| 100 } | |
| 101 | |
| 102 return bytesToChars(b, len2); | |
| 103 } | |
| 104 | |
| 105 public void run() { | |
| 106 while (true) { | |
| 107 try { | |
| 108 char[] len = forceRead(1); | |
| 109 char[] packet = forceRead(len[0]); | |
| 110 char cmd = packet[0]; | |
| 111 Log.i(TAG, String.format("received %d command", (int)cmd)); | |
| 112 | |
| 113 switch (cmd) { | |
| 114 case MONITOR_CMD_SETFIELD: | |
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115 if (packet.length >= 3) |
| 0 | 116 setField(packet[1], packet[2], packet, 3); |
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117 |
| 0 | 118 break; |
| 119 | |
| 120 case MONITOR_CMD_GETFIELD: | |
| 121 if (packet.length == 4) | |
| 122 getField(packet[1], packet[2], packet[3]); | |
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123 |
| 0 | 124 break; |
| 125 | |
| 126 case MONITOR_CMD_SCREENWATCH: | |
| 127 if (packet.length == 4) | |
| 128 screenWatch(packet[1], packet[2], packet[3]); | |
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129 |
| 0 | 130 break; |
| 131 | |
| 132 case MONITOR_CMD_DEPRESS: | |
| 133 if (packet.length == 2) | |
| 134 depress(packet[1]); | |
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135 |
| 0 | 136 break; |
| 137 | |
| 155 | 138 case MONITOR_CMD_SHOWURL: |
| 139 if (packet.length > 1) | |
| 140 showUrl(packet, 1); | |
| 141 | |
| 142 break; | |
| 143 | |
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144 case MONITOR_CMD_SWITCHSESSION: |
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145 if (packet.length == 1) |
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146 switchSession(); |
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147 |
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148 break; |
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149 |
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150 case MONITOR_CMD_CURSORREQUEST: |
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151 if (packet.length == 1) |
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152 cursorRequest(); |
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153 |
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154 break; |
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155 |
| 0 | 156 default: |
| 157 break; | |
| 158 } | |
| 159 } | |
| 160 catch (IOException e) { | |
| 161 if (!is_closing) Log.e(TAG, "exception in MyReader.run()", e); | |
| 162 | |
| 163 break; | |
| 164 } | |
| 165 } | |
| 166 } | |
| 167 } | |
| 168 | |
| 169 class MyServiceConnection implements ServiceConnection { | |
| 170 public void onServiceConnected(ComponentName className, IBinder service) { | |
| 171 bound = service; | |
| 172 Log.i(TAG, "bound to service"); | |
| 173 | |
| 174 try { | |
| 175 InetAddress serverAddr = InetAddress.getByName(LOCALHOST); | |
| 176 monitor_socket = new Socket(serverAddr, MONITORPORT); | |
| 177 monitor_in = monitor_socket.getInputStream(); | |
| 178 monitor_out = monitor_socket.getOutputStream(); | |
| 179 Log.i(TAG, "connected to monitor socket, send init " + init); | |
| 180 monitor_reader = new MyReader(monitor_in); | |
| 181 monitor_reader.start(); | |
| 182 String x = " " + init; | |
| 183 monitorWrite(MONITOR_CMD_INIT, x.toCharArray()); | |
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184 char [] c; |
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185 |
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186 while (true) { |
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187 c = pending_commands.poll(); |
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188 |
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189 if (c == null) break; |
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190 |
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191 monitorWrite(c[1], c); |
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192 } |
| 0 | 193 } |
| 194 catch (IOException e) { | |
| 195 Log.e(TAG, "exception in onServiceConnected()", e); | |
| 196 } | |
| 197 } | |
| 198 public void onServiceDisconnected(ComponentName classNam) { | |
| 199 bound = null; | |
| 200 Log.i(TAG, "unbound from service"); | |
| 201 } | |
| 202 }; | |
| 203 | |
| 204 | |
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205 public TerminalMonitor(Context parent, vt320 buffer, View view, HostBean host, String init) { |
| 0 | 206 this.parent = parent; |
| 207 this.buffer = buffer; | |
| 208 this.view = view; | |
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209 this.host = host; |
| 0 | 210 this.init = init; |
| 211 // setup the windows->android keymapping | |
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212 // http://msdn.microsoft.com/en-us/library/windows/desktop/dd375731 |
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213 keymap = new HashMap<Integer, Integer>(); |
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214 keymap.put(0x08, vt320.KEY_BACK_SPACE); // vk_back |
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215 keymap.put(0x09, vt320.KEY_TAB); // vk_tab |
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216 keymap.put(0x0d, vt320.KEY_ENTER); // vk_return |
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217 keymap.put(0x1b, vt320.KEY_ESCAPE); // vk_escape |
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218 keymap.put(0x21, vt320.KEY_PAGE_UP); // vk_prior |
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219 keymap.put(0x22, vt320.KEY_PAGE_DOWN); // vk_next |
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220 keymap.put(0x23, vt320.KEY_END); // vk_end |
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221 keymap.put(0x24, vt320.KEY_HOME); // vk_home |
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222 keymap.put(0x25, vt320.KEY_LEFT); // vk_left |
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223 keymap.put(0x26, vt320.KEY_UP); // vk_up |
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224 keymap.put(0x27, vt320.KEY_RIGHT); // vk_right |
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225 keymap.put(0x28, vt320.KEY_DOWN); // vk_down |
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226 keymap.put(0x2d, vt320.KEY_INSERT); // vk_insert |
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227 keymap.put(0x2e, vt320.KEY_DELETE); // vk_delete |
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228 keymap.put(0x70, vt320.KEY_F1); // vk_f1 |
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229 keymap.put(0x71, vt320.KEY_F2); // vk_f2 |
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230 keymap.put(0x72, vt320.KEY_F3); // vk_f3 |
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231 keymap.put(0x73, vt320.KEY_F4); // vk_f4 |
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232 keymap.put(0x74, vt320.KEY_F5); // vk_f5 |
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233 keymap.put(0x75, vt320.KEY_F6); // vk_f6 |
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234 keymap.put(0x76, vt320.KEY_F7); // vk_f7 |
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235 keymap.put(0x77, vt320.KEY_F8); // vk_f8 |
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236 keymap.put(0x78, vt320.KEY_F9); // vk_f9 |
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237 keymap.put(0x79, vt320.KEY_F10); // vk_f10 |
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238 keymap.put(0x7a, vt320.KEY_F11); // vk_f11 |
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239 keymap.put(0x7b, vt320.KEY_F12); // vk_f12 |
| 176 | 240 keymap.put(0x7c, vt320.KEY_F13); // vk_f13 |
| 241 keymap.put(0x7d, vt320.KEY_F14); // vk_f14 | |
| 242 keymap.put(0x7e, vt320.KEY_F15); // vk_f15 | |
| 243 keymap.put(0x7f, vt320.KEY_F16); // vk_f16 | |
| 244 keymap.put(0x80, vt320.KEY_F17); // vk_f17 | |
| 245 keymap.put(0x81, vt320.KEY_F18); // vk_f18 | |
| 246 keymap.put(0x82, vt320.KEY_F19); // vk_f19 | |
| 247 keymap.put(0x83, vt320.KEY_F20); // vk_f20 | |
| 248 keymap.put(0x84, vt320.KEY_F21); // vk_f21 | |
| 249 keymap.put(0x85, vt320.KEY_F22); // vk_f22 | |
| 250 keymap.put(0x86, vt320.KEY_F23); // vk_f23 | |
| 251 keymap.put(0x87, vt320.KEY_F24); // vk_f24 | |
| 0 | 252 // bind to the monitor service |
| 253 Intent intent = new Intent("com.five_ten_sg.connectbot.monitor.MonitorService"); | |
| 254 parent.bindService(intent, monitor_connection, Context.BIND_AUTO_CREATE); | |
| 255 Log.i(TAG, "constructor"); | |
| 256 } | |
| 257 | |
| 258 | |
| 259 public void Disconnect() { | |
| 260 if (monitor_reader != null) monitor_reader.closing(); | |
| 261 | |
| 262 try { | |
| 263 if (monitor_out != null) monitor_out.close(); | |
| 264 | |
| 265 if (monitor_in != null) monitor_in.close(); | |
| 266 | |
| 267 if (monitor_socket != null) monitor_socket.close(); | |
| 268 | |
| 269 Log.i(TAG, "disconnected from monitor socket"); | |
| 270 } | |
| 271 catch (IOException e) { | |
| 272 Log.e(TAG, "exception in Disconnect() closing sockets", e); | |
| 273 } | |
| 274 | |
| 275 monitor_reader = null; | |
| 276 monitor_out = null; | |
| 277 monitor_in = null; | |
| 278 monitor_socket = null; | |
| 279 | |
| 280 if (bound != null) parent.unbindService(monitor_connection); | |
| 281 | |
| 282 monitor_connection = null; | |
| 283 } | |
| 284 | |
| 285 | |
| 286 public char[] bytesToChars(byte[] b, int len) { | |
| 287 char[] c = new char[len >> 1]; | |
| 288 int bp = 0; | |
| 289 | |
| 290 for (int i = 0; i < c.length; i++) { | |
| 291 byte b1 = b[bp++]; | |
| 292 byte b2 = b[bp++]; | |
| 293 c[i] = (char)(((b1 & 0x00FF) << 8) + (b2 & 0x00FF)); | |
| 294 } | |
| 295 | |
| 296 return c; | |
| 297 } | |
| 298 | |
| 299 | |
| 300 public byte[] charsToBytes(char[] c) { | |
| 301 byte[] b = new byte[c.length << 1]; | |
| 302 int bp = 0; | |
| 303 | |
| 304 for (int i = 0; i < c.length; i++) { | |
| 305 b[bp++] = (byte)((c[i] & 0xff00) >> 8); | |
| 306 b[bp++] = (byte)(c[i] & 0x00ff); | |
| 307 } | |
| 308 | |
| 309 return b; | |
| 310 } | |
| 311 | |
| 312 | |
| 313 public synchronized void monitorWrite(char cmd, char[] c) { | |
| 314 try { | |
| 315 if (monitor_out != null) { | |
| 316 c[0] = (char)(c.length - 1); // number of chars following | |
| 317 c[1] = cmd; | |
| 318 //Log.i(TAG, String.format("sending %d command", (int)cmd)); | |
| 319 monitor_out.write(charsToBytes(c)); | |
| 320 } | |
|
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321 else { |
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322 c[1] = cmd; |
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323 pending_commands.put(c); |
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324 } |
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325 } |
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326 catch (InterruptedException e) { |
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327 Log.e(TAG, "exception in monitorWrite()", e); |
| 0 | 328 } |
| 329 catch (IOException e) { | |
| 330 Log.i(TAG, "exception in monitorWrite(), monitor died or closed the socket", e); | |
| 331 | |
| 332 try { | |
| 333 monitor_out.close(); | |
| 334 } | |
| 335 catch (IOException ee) { | |
| 336 Log.e(TAG, "exception in monitorWrite() closing output stream", ee); | |
| 337 } | |
| 338 | |
| 339 monitor_out = null; | |
| 340 } | |
| 341 }; | |
| 342 | |
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343 public void resetWatch() { |
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344 start_line = 0; |
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345 end_line = 500; |
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346 start_column = 0; |
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347 end_column = 500; |
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348 }; |
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349 |
| 0 | 350 public void sendScreen(char cmd) { |
| 351 char lines = (char)(buffer.height & 0x0000ffff); | |
| 352 char columns = (char)(buffer.width & 0x0000ffff); | |
| 353 char[] arg = new char[4 + lines * columns]; | |
| 354 arg[2] = lines; | |
| 355 arg[3] = columns; | |
| 356 int base = 4; | |
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357 |
| 0 | 358 for (int i = 0; i < lines; i++) { |
| 359 System.arraycopy(buffer.charArray[buffer.screenBase + i], 0, arg, base, columns); | |
| 360 base += columns; | |
| 361 } | |
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362 |
| 0 | 363 monitorWrite(cmd, arg); |
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364 resetWatch(); |
| 0 | 365 } |
| 366 | |
| 367 public synchronized void activate() { | |
| 368 sendScreen(MONITOR_CMD_ACTIVATE); | |
|
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369 cursorMoved(CURSOR_SCREEN_CHANGE); |
| 0 | 370 } |
| 371 | |
|
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372 public synchronized void keyState(boolean down) { |
| 0 | 373 char[] arg = new char[3]; |
|
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374 arg[2] = (char)((down) ? 1 : 0); |
|
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375 monitorWrite(MONITOR_CMD_KEYSTATE, arg); |
| 0 | 376 } |
| 377 | |
| 378 public synchronized void cursorMove(int l, int c) { | |
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379 if ((to_line != l) || (to_column != c)) moved = true; |
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380 to_line = l; |
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381 to_column = c; |
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382 } |
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383 |
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384 public void cursorMoved(char why) { |
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385 char[] arg = new char[5]; |
|
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386 arg[2] = (char)(to_line & 0x0000ffff); |
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387 arg[3] = (char)(to_column & 0x0000ffff); |
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388 arg[4] = why; |
| 0 | 389 monitorWrite(MONITOR_CMD_CURSORMOVE, arg); |
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390 moved = false; |
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391 } |
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392 |
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393 public void testMoved() { |
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394 if (moved) cursorMoved(CURSOR_USER_KEY); |
| 0 | 395 } |
| 396 | |
| 397 public synchronized void testChanged() { | |
| 398 if (modified) { | |
| 399 modified = false; | |
| 400 sendScreen(MONITOR_CMD_SCREENCHANGE); | |
|
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401 cursorMoved(CURSOR_SCREEN_CHANGE); |
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402 } |
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403 else { |
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404 if (moved) cursorMoved(CURSOR_SCREEN_CHANGE); |
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405 } |
| 0 | 406 } |
| 407 | |
| 408 public synchronized void screenChanged(int llow, int lhigh, int clow, int chigh) { | |
| 409 if ((start_line <= lhigh) && (llow <= end_line) && (start_column <= chigh) && (clow <= end_column)) { | |
| 410 modified = true; | |
| 411 } | |
| 412 } | |
| 413 | |
| 414 public synchronized void screenChanged(int l, int c) { | |
| 415 screenChanged(l, l, c, c); | |
| 416 } | |
| 417 | |
| 418 public synchronized void setField(int l, int c, char[] data, int offset) { | |
| 419 Log.i(TAG, "setField()"); | |
| 101 | 420 char[] da = new char[data.length - offset]; |
|
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421 System.arraycopy(data, offset, da, 0, data.length-offset); |
|
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422 if (l > 60000) l = -1; |
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423 if (c > 60000) c = -1; |
| 100 | 424 buffer.setField(l, c, da); |
| 0 | 425 } |
| 426 | |
| 155 | 427 public synchronized void showUrl(char [] data, int offset) { |
| 428 Log.i(TAG, "setField()"); | |
| 429 char[] da = new char[data.length - offset]; | |
|
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430 System.arraycopy(data, offset, da, 0, data.length-offset); |
| 155 | 431 String url = new String(da); |
| 432 Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); | |
| 433 parent.startActivity(intent); | |
| 434 } | |
| 435 | |
| 0 | 436 public synchronized void getField(int l, int c, int len) { |
| 437 Log.i(TAG, "getField()"); | |
| 438 char[] arg2 = new char[4 + len]; | |
| 439 arg2[2] = (char)(l & 0x0000ffff); | |
| 440 arg2[3] = (char)(c & 0x0000ffff); | |
| 441 int base = 4; | |
| 442 System.arraycopy(buffer.charArray[buffer.screenBase + l], c, arg2, base, len); | |
| 443 monitorWrite(MONITOR_CMD_FIELDVALUE, arg2); | |
| 444 } | |
| 445 | |
| 446 public synchronized void screenWatch(int l, int c, int len) { | |
| 447 Log.i(TAG, "screenWatch()"); | |
| 448 start_line = l; | |
| 449 end_line = l; | |
| 450 start_column = c; | |
| 451 end_column = c + len - 1; | |
| 452 } | |
| 453 | |
| 454 public synchronized void depress(int vk_key) { | |
| 455 Log.i(TAG, String.format("depress() %d", vk_key)); | |
| 456 Integer x = keymap.get(new Integer(vk_key)); | |
|
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457 if (x != null) buffer.keyDepressed(x, ' ', 0); |
| 0 | 458 } |
|
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459 |
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460 public synchronized void switchSession() { |
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461 Log.i(TAG, "switchSession()"); |
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462 Intent intent = new Intent(parent, ConsoleActivity.class); |
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463 intent.setAction(Intent.ACTION_VIEW); |
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464 intent.setData(host.getUri()); |
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465 parent.startActivity(intent); |
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466 } |
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467 |
|
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468 |
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469 public synchronized void cursorRequest() { |
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470 Log.i(TAG, "cursorRequest()"); |
|
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471 cursorMoved(CURSOR_REQUESTED); |
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472 } |
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473 |
| 0 | 474 } |