Mercurial > 510Connectbot
annotate src/com/five_ten_sg/connectbot/service/TerminalMonitor.java @ 165:924523c03ca7
merge
| author | Carl Byington <carl@five-ten-sg.com> |
|---|---|
| date | Tue, 24 Jun 2014 12:39:43 -0700 |
| parents | 156b53fc4815 |
| children | cb9e359ea2bd |
| 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 |
| 23 public class TerminalMonitor { | |
| 24 public final static String TAG = "ConnectBot.TerminalMonitor"; | |
| 25 | |
| 26 public static final char MONITOR_CMD_INIT = 0; | |
| 27 public static final char MONITOR_CMD_ACTIVATE = 1; | |
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28 public static final char MONITOR_CMD_KEYSTATE = 2; |
| 0 | 29 public static final char MONITOR_CMD_CURSORMOVE = 3; |
| 30 public static final char MONITOR_CMD_SCREENCHANGE = 4; | |
| 31 public static final char MONITOR_CMD_FIELDVALUE = 5; | |
| 32 public static final char MONITOR_CMD_SETFIELD = 5; | |
| 33 public static final char MONITOR_CMD_GETFIELD = 6; | |
| 34 public static final char MONITOR_CMD_SCREENWATCH = 7; | |
| 35 public static final char MONITOR_CMD_DEPRESS = 8; | |
| 155 | 36 public static final char MONITOR_CMD_SHOWURL = 9; |
| 0 | 37 |
| 38 private static final int MONITORPORT = 6000; | |
| 39 private static final String LOCALHOST = "127.0.0.1"; | |
| 40 | |
| 41 private Context parent = null; | |
| 42 private vt320 buffer = null; | |
| 43 private View view = null; | |
| 44 private String init = null; | |
| 45 private int start_line = 0; // monitor part of the screen for changes | |
| 46 private int end_line = 500; // "" | |
| 47 private int start_column = 0; // "" | |
| 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; // map MS VK_ keys to vt320 virtual keys |
| 0 | 54 private IBinder bound = null; |
| 55 private Socket monitor_socket = null; | |
| 56 private InputStream monitor_in = null; | |
| 57 private OutputStream monitor_out = null; | |
| 58 private MyReader monitor_reader = null; | |
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59 private BlockingQueue<char[]> pending_commands = new ArrayBlockingQueue<char[]>(100); |
| 0 | 60 private MyServiceConnection monitor_connection = new MyServiceConnection(); |
| 61 | |
| 62 class MyReader extends Thread { | |
| 63 private InputStream monitor_in; | |
| 64 private byte[] b; | |
| 65 private boolean is_closing = false; | |
| 66 | |
| 67 public MyReader(InputStream monitor_in) { | |
| 68 this.monitor_in = monitor_in; | |
| 69 b = new byte[100]; | |
| 70 Log.i(TAG, "MyReader constructor"); | |
| 71 } | |
| 72 | |
| 73 public void closing() { | |
| 74 is_closing = true; | |
| 75 } | |
| 76 | |
| 77 private char[] forceRead(int len) throws IOException { | |
| 78 int len2 = len * 2; | |
| 79 int off = 0; | |
| 80 | |
| 81 if (b.length < len2) b = new byte[len2]; | |
| 82 | |
| 83 while (off < len2) { | |
| 84 int l = monitor_in.read(b, off, len2 - off); | |
| 85 | |
| 86 if (l < 0) throw new IOException("eof"); | |
| 87 | |
| 88 off += l; | |
| 89 } | |
| 90 | |
| 91 return bytesToChars(b, len2); | |
| 92 } | |
| 93 | |
| 94 public void run() { | |
| 95 while (true) { | |
| 96 try { | |
| 97 char[] len = forceRead(1); | |
| 98 char[] packet = forceRead(len[0]); | |
| 99 char cmd = packet[0]; | |
| 100 Log.i(TAG, String.format("received %d command", (int)cmd)); | |
| 101 | |
| 102 switch (cmd) { | |
| 103 case MONITOR_CMD_SETFIELD: | |
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104 if (packet.length >= 3) |
| 0 | 105 setField(packet[1], packet[2], packet, 3); |
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106 |
| 0 | 107 break; |
| 108 | |
| 109 case MONITOR_CMD_GETFIELD: | |
| 110 if (packet.length == 4) | |
| 111 getField(packet[1], packet[2], packet[3]); | |
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112 |
| 0 | 113 break; |
| 114 | |
| 115 case MONITOR_CMD_SCREENWATCH: | |
| 116 if (packet.length == 4) | |
| 117 screenWatch(packet[1], packet[2], packet[3]); | |
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118 |
| 0 | 119 break; |
| 120 | |
| 121 case MONITOR_CMD_DEPRESS: | |
| 122 if (packet.length == 2) | |
| 123 depress(packet[1]); | |
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124 |
| 0 | 125 break; |
| 126 | |
| 155 | 127 case MONITOR_CMD_SHOWURL: |
| 128 if (packet.length > 1) | |
| 129 showUrl(packet, 1); | |
| 130 | |
| 131 break; | |
| 132 | |
| 0 | 133 default: |
| 134 break; | |
| 135 } | |
| 136 } | |
| 137 catch (IOException e) { | |
| 138 if (!is_closing) Log.e(TAG, "exception in MyReader.run()", e); | |
| 139 | |
| 140 break; | |
| 141 } | |
| 142 } | |
| 143 } | |
| 144 } | |
| 145 | |
| 146 class MyServiceConnection implements ServiceConnection { | |
| 147 public void onServiceConnected(ComponentName className, IBinder service) { | |
| 148 bound = service; | |
| 149 Log.i(TAG, "bound to service"); | |
| 150 | |
| 151 try { | |
| 152 InetAddress serverAddr = InetAddress.getByName(LOCALHOST); | |
| 153 monitor_socket = new Socket(serverAddr, MONITORPORT); | |
| 154 monitor_in = monitor_socket.getInputStream(); | |
| 155 monitor_out = monitor_socket.getOutputStream(); | |
| 156 Log.i(TAG, "connected to monitor socket, send init " + init); | |
| 157 monitor_reader = new MyReader(monitor_in); | |
| 158 monitor_reader.start(); | |
| 159 String x = " " + init; | |
| 160 monitorWrite(MONITOR_CMD_INIT, x.toCharArray()); | |
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161 char [] c; |
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162 |
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163 while (true) { |
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164 c = pending_commands.poll(); |
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165 |
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166 if (c == null) break; |
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167 |
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168 monitorWrite(c[1], c); |
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169 } |
| 0 | 170 } |
| 171 catch (IOException e) { | |
| 172 Log.e(TAG, "exception in onServiceConnected()", e); | |
| 173 } | |
| 174 } | |
| 175 public void onServiceDisconnected(ComponentName classNam) { | |
| 176 bound = null; | |
| 177 Log.i(TAG, "unbound from service"); | |
| 178 } | |
| 179 }; | |
| 180 | |
| 181 | |
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182 public TerminalMonitor(Context parent, vt320 buffer, View view, String init) { |
| 0 | 183 this.parent = parent; |
| 184 this.buffer = buffer; | |
| 185 this.view = view; | |
| 186 this.init = init; | |
| 187 // setup the windows->android keymapping | |
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188 // http://msdn.microsoft.com/en-us/library/windows/desktop/dd375731 |
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189 keymap = new HashMap<Integer, Integer>(); |
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190 keymap.put(0x08, vt320.KEY_BACK_SPACE); // vk_back |
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191 keymap.put(0x09, vt320.KEY_TAB); // vk_tab |
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192 keymap.put(0x0d, vt320.KEY_ENTER); // vk_return |
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193 keymap.put(0x1b, vt320.KEY_ESCAPE); // vk_escape |
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194 keymap.put(0x21, vt320.KEY_PAGE_UP); // vk_prior |
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195 keymap.put(0x22, vt320.KEY_PAGE_DOWN); // vk_next |
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196 keymap.put(0x23, vt320.KEY_END); // vk_end |
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197 keymap.put(0x24, vt320.KEY_HOME); // vk_home |
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198 keymap.put(0x25, vt320.KEY_LEFT); // vk_left |
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199 keymap.put(0x26, vt320.KEY_UP); // vk_up |
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200 keymap.put(0x27, vt320.KEY_RIGHT); // vk_right |
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201 keymap.put(0x28, vt320.KEY_DOWN); // vk_down |
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202 keymap.put(0x2d, vt320.KEY_INSERT); // vk_insert |
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203 keymap.put(0x2e, vt320.KEY_DELETE); // vk_delete |
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204 keymap.put(0x70, vt320.KEY_F1); // vk_f1 |
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205 keymap.put(0x71, vt320.KEY_F2); // vk_f2 |
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206 keymap.put(0x72, vt320.KEY_F3); // vk_f3 |
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207 keymap.put(0x73, vt320.KEY_F4); // vk_f4 |
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208 keymap.put(0x74, vt320.KEY_F5); // vk_f5 |
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209 keymap.put(0x75, vt320.KEY_F6); // vk_f6 |
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210 keymap.put(0x76, vt320.KEY_F7); // vk_f7 |
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211 keymap.put(0x77, vt320.KEY_F8); // vk_f8 |
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212 keymap.put(0x78, vt320.KEY_F9); // vk_f9 |
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213 keymap.put(0x79, vt320.KEY_F10); // vk_f10 |
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214 keymap.put(0x7a, vt320.KEY_F11); // vk_f11 |
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215 keymap.put(0x7b, vt320.KEY_F12); // vk_f12 |
| 0 | 216 // bind to the monitor service |
| 217 Intent intent = new Intent("com.five_ten_sg.connectbot.monitor.MonitorService"); | |
| 218 parent.bindService(intent, monitor_connection, Context.BIND_AUTO_CREATE); | |
| 219 Log.i(TAG, "constructor"); | |
| 220 } | |
| 221 | |
| 222 | |
| 223 public void Disconnect() { | |
| 224 if (monitor_reader != null) monitor_reader.closing(); | |
| 225 | |
| 226 try { | |
| 227 if (monitor_out != null) monitor_out.close(); | |
| 228 | |
| 229 if (monitor_in != null) monitor_in.close(); | |
| 230 | |
| 231 if (monitor_socket != null) monitor_socket.close(); | |
| 232 | |
| 233 Log.i(TAG, "disconnected from monitor socket"); | |
| 234 } | |
| 235 catch (IOException e) { | |
| 236 Log.e(TAG, "exception in Disconnect() closing sockets", e); | |
| 237 } | |
| 238 | |
| 239 monitor_reader = null; | |
| 240 monitor_out = null; | |
| 241 monitor_in = null; | |
| 242 monitor_socket = null; | |
| 243 | |
| 244 if (bound != null) parent.unbindService(monitor_connection); | |
| 245 | |
| 246 monitor_connection = null; | |
| 247 } | |
| 248 | |
| 249 | |
| 250 public char[] bytesToChars(byte[] b, int len) { | |
| 251 char[] c = new char[len >> 1]; | |
| 252 int bp = 0; | |
| 253 | |
| 254 for (int i = 0; i < c.length; i++) { | |
| 255 byte b1 = b[bp++]; | |
| 256 byte b2 = b[bp++]; | |
| 257 c[i] = (char)(((b1 & 0x00FF) << 8) + (b2 & 0x00FF)); | |
| 258 } | |
| 259 | |
| 260 return c; | |
| 261 } | |
| 262 | |
| 263 | |
| 264 public byte[] charsToBytes(char[] c) { | |
| 265 byte[] b = new byte[c.length << 1]; | |
| 266 int bp = 0; | |
| 267 | |
| 268 for (int i = 0; i < c.length; i++) { | |
| 269 b[bp++] = (byte)((c[i] & 0xff00) >> 8); | |
| 270 b[bp++] = (byte)(c[i] & 0x00ff); | |
| 271 } | |
| 272 | |
| 273 return b; | |
| 274 } | |
| 275 | |
| 276 | |
| 277 public synchronized void monitorWrite(char cmd, char[] c) { | |
| 278 try { | |
| 279 if (monitor_out != null) { | |
| 280 c[0] = (char)(c.length - 1); // number of chars following | |
| 281 c[1] = cmd; | |
| 282 //Log.i(TAG, String.format("sending %d command", (int)cmd)); | |
| 283 monitor_out.write(charsToBytes(c)); | |
| 284 } | |
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285 else { |
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286 c[1] = cmd; |
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287 pending_commands.put(c); |
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288 } |
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289 } |
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290 catch (InterruptedException e) { |
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291 Log.e(TAG, "exception in monitorWrite()", e); |
| 0 | 292 } |
| 293 catch (IOException e) { | |
| 294 Log.i(TAG, "exception in monitorWrite(), monitor died or closed the socket", e); | |
| 295 | |
| 296 try { | |
| 297 monitor_out.close(); | |
| 298 } | |
| 299 catch (IOException ee) { | |
| 300 Log.e(TAG, "exception in monitorWrite() closing output stream", ee); | |
| 301 } | |
| 302 | |
| 303 monitor_out = null; | |
| 304 } | |
| 305 }; | |
| 306 | |
| 307 public void sendScreen(char cmd) { | |
| 308 char lines = (char)(buffer.height & 0x0000ffff); | |
| 309 char columns = (char)(buffer.width & 0x0000ffff); | |
| 310 char[] arg = new char[4 + lines * columns]; | |
| 311 arg[2] = lines; | |
| 312 arg[3] = columns; | |
| 313 int base = 4; | |
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314 |
| 0 | 315 for (int i = 0; i < lines; i++) { |
| 316 System.arraycopy(buffer.charArray[buffer.screenBase + i], 0, arg, base, columns); | |
| 317 base += columns; | |
| 318 } | |
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319 |
| 0 | 320 monitorWrite(cmd, arg); |
| 321 } | |
| 322 | |
| 323 public synchronized void activate() { | |
| 324 sendScreen(MONITOR_CMD_ACTIVATE); | |
| 325 } | |
| 326 | |
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327 public synchronized void keyState(boolean down) { |
| 0 | 328 char[] arg = new char[3]; |
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329 arg[2] = (char)((down) ? 1 : 0); |
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330 monitorWrite(MONITOR_CMD_KEYSTATE, arg); |
| 0 | 331 } |
| 332 | |
| 333 public synchronized void cursorMove(int l, int c) { | |
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334 moved = true; |
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335 to_line = l; |
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336 to_column = c; |
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337 } |
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338 |
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339 public void cursorMoved() { |
| 0 | 340 char[] arg = new char[4]; |
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341 arg[2] = (char)(to_line & 0x0000ffff); |
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342 arg[3] = (char)(to_column & 0x0000ffff); |
| 0 | 343 monitorWrite(MONITOR_CMD_CURSORMOVE, arg); |
| 344 } | |
| 345 | |
| 346 public synchronized void testChanged() { | |
| 347 if (modified) { | |
| 348 modified = false; | |
| 349 sendScreen(MONITOR_CMD_SCREENCHANGE); | |
| 350 } | |
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351 |
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352 if (moved) { |
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353 moved = false; |
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354 cursorMoved(); |
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355 } |
| 0 | 356 } |
| 357 | |
| 358 public synchronized void screenChanged(int llow, int lhigh, int clow, int chigh) { | |
| 359 if ((start_line <= lhigh) && (llow <= end_line) && (start_column <= chigh) && (clow <= end_column)) { | |
| 360 modified = true; | |
| 361 } | |
| 362 } | |
| 363 | |
| 364 public synchronized void screenChanged(int l, int c) { | |
| 365 screenChanged(l, l, c, c); | |
| 366 } | |
| 367 | |
| 368 public synchronized void setField(int l, int c, char[] data, int offset) { | |
| 369 Log.i(TAG, "setField()"); | |
| 101 | 370 char[] da = new char[data.length - offset]; |
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371 int i; |
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372 |
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373 for (i = 0; i < da.length; i++) { |
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374 da[i] = data[i + offset]; |
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375 } |
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376 |
| 100 | 377 buffer.setField(l, c, da); |
| 0 | 378 } |
| 379 | |
| 155 | 380 public synchronized void showUrl(char [] data, int offset) { |
| 381 Log.i(TAG, "setField()"); | |
| 382 char[] da = new char[data.length - offset]; | |
| 383 int i; | |
| 384 | |
| 385 for (i = 0; i < da.length; i++) { | |
| 386 da[i] = data[i + offset]; | |
| 387 } | |
| 388 String url = new String(da); | |
| 389 Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); | |
| 390 parent.startActivity(intent); | |
| 391 } | |
| 392 | |
| 0 | 393 public synchronized void getField(int l, int c, int len) { |
| 394 Log.i(TAG, "getField()"); | |
| 395 char[] arg2 = new char[4 + len]; | |
| 396 arg2[2] = (char)(l & 0x0000ffff); | |
| 397 arg2[3] = (char)(c & 0x0000ffff); | |
| 398 int base = 4; | |
| 399 System.arraycopy(buffer.charArray[buffer.screenBase + l], c, arg2, base, len); | |
| 400 monitorWrite(MONITOR_CMD_FIELDVALUE, arg2); | |
| 401 } | |
| 402 | |
| 403 public synchronized void screenWatch(int l, int c, int len) { | |
| 404 Log.i(TAG, "screenWatch()"); | |
| 405 start_line = l; | |
| 406 end_line = l; | |
| 407 start_column = c; | |
| 408 end_column = c + len - 1; | |
| 409 } | |
| 410 | |
| 411 public synchronized void depress(int vk_key) { | |
| 412 Log.i(TAG, String.format("depress() %d", vk_key)); | |
| 413 Integer x = keymap.get(new Integer(vk_key)); | |
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414 if (x != null) buffer.keyPressed(x, ' ', 0); |
| 0 | 415 } |
| 416 } |