Mercurial > 510Connectbot
annotate src/com/five_ten_sg/connectbot/service/TerminalMonitor.java @ 175:2a7199ad90be
send cursor movement caused by user keystrokes to the monitor
| author | Carl Byington <carl@five-ten-sg.com> |
|---|---|
| date | Wed, 02 Jul 2014 10:13:15 -0700 |
| parents | b010f9dc801f |
| children | 6e07ea418b90 |
| 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; |
| 0 | 42 |
| 43 private static final int MONITORPORT = 6000; | |
| 44 private static final String LOCALHOST = "127.0.0.1"; | |
| 45 | |
| 46 private Context parent = null; | |
| 47 private vt320 buffer = null; | |
| 48 private View view = null; | |
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49 private HostBean host = null; |
| 0 | 50 private String init = null; |
| 51 private int start_line = 0; // monitor part of the screen for changes | |
| 52 private int end_line = 500; // "" | |
| 53 private int start_column = 0; // "" | |
| 54 private int end_column = 500; // "" | |
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55 private boolean modified = false; // used to delay screen change notifications |
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56 private boolean moved = false; // used to delay cursor moved notifications |
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57 private int to_line = 0; // "" |
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58 private int to_column = 0; // "" |
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59 private HashMap<Integer, Integer> keymap = null; // map MS VK_ keys to vt320 virtual keys |
| 0 | 60 private IBinder bound = null; |
| 61 private Socket monitor_socket = null; | |
| 62 private InputStream monitor_in = null; | |
| 63 private OutputStream monitor_out = null; | |
| 64 private MyReader monitor_reader = null; | |
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65 private BlockingQueue<char[]> pending_commands = new ArrayBlockingQueue<char[]>(100); |
| 0 | 66 private MyServiceConnection monitor_connection = new MyServiceConnection(); |
| 67 | |
| 68 class MyReader extends Thread { | |
| 69 private InputStream monitor_in; | |
| 70 private byte[] b; | |
| 71 private boolean is_closing = false; | |
| 72 | |
| 73 public MyReader(InputStream monitor_in) { | |
| 74 this.monitor_in = monitor_in; | |
| 75 b = new byte[100]; | |
| 76 Log.i(TAG, "MyReader constructor"); | |
| 77 } | |
| 78 | |
| 79 public void closing() { | |
| 80 is_closing = true; | |
| 81 } | |
| 82 | |
| 83 private char[] forceRead(int len) throws IOException { | |
| 84 int len2 = len * 2; | |
| 85 int off = 0; | |
| 86 | |
| 87 if (b.length < len2) b = new byte[len2]; | |
| 88 | |
| 89 while (off < len2) { | |
| 90 int l = monitor_in.read(b, off, len2 - off); | |
| 91 | |
| 92 if (l < 0) throw new IOException("eof"); | |
| 93 | |
| 94 off += l; | |
| 95 } | |
| 96 | |
| 97 return bytesToChars(b, len2); | |
| 98 } | |
| 99 | |
| 100 public void run() { | |
| 101 while (true) { | |
| 102 try { | |
| 103 char[] len = forceRead(1); | |
| 104 char[] packet = forceRead(len[0]); | |
| 105 char cmd = packet[0]; | |
| 106 Log.i(TAG, String.format("received %d command", (int)cmd)); | |
| 107 | |
| 108 switch (cmd) { | |
| 109 case MONITOR_CMD_SETFIELD: | |
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110 if (packet.length >= 3) |
| 0 | 111 setField(packet[1], packet[2], packet, 3); |
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112 |
| 0 | 113 break; |
| 114 | |
| 115 case MONITOR_CMD_GETFIELD: | |
| 116 if (packet.length == 4) | |
| 117 getField(packet[1], packet[2], packet[3]); | |
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118 |
| 0 | 119 break; |
| 120 | |
| 121 case MONITOR_CMD_SCREENWATCH: | |
| 122 if (packet.length == 4) | |
| 123 screenWatch(packet[1], packet[2], packet[3]); | |
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124 |
| 0 | 125 break; |
| 126 | |
| 127 case MONITOR_CMD_DEPRESS: | |
| 128 if (packet.length == 2) | |
| 129 depress(packet[1]); | |
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130 |
| 0 | 131 break; |
| 132 | |
| 155 | 133 case MONITOR_CMD_SHOWURL: |
| 134 if (packet.length > 1) | |
| 135 showUrl(packet, 1); | |
| 136 | |
| 137 break; | |
| 138 | |
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139 case MONITOR_CMD_SWITCHSESSION: |
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140 if (packet.length == 1) |
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141 switchSession(); |
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142 |
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143 break; |
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144 |
| 0 | 145 default: |
| 146 break; | |
| 147 } | |
| 148 } | |
| 149 catch (IOException e) { | |
| 150 if (!is_closing) Log.e(TAG, "exception in MyReader.run()", e); | |
| 151 | |
| 152 break; | |
| 153 } | |
| 154 } | |
| 155 } | |
| 156 } | |
| 157 | |
| 158 class MyServiceConnection implements ServiceConnection { | |
| 159 public void onServiceConnected(ComponentName className, IBinder service) { | |
| 160 bound = service; | |
| 161 Log.i(TAG, "bound to service"); | |
| 162 | |
| 163 try { | |
| 164 InetAddress serverAddr = InetAddress.getByName(LOCALHOST); | |
| 165 monitor_socket = new Socket(serverAddr, MONITORPORT); | |
| 166 monitor_in = monitor_socket.getInputStream(); | |
| 167 monitor_out = monitor_socket.getOutputStream(); | |
| 168 Log.i(TAG, "connected to monitor socket, send init " + init); | |
| 169 monitor_reader = new MyReader(monitor_in); | |
| 170 monitor_reader.start(); | |
| 171 String x = " " + init; | |
| 172 monitorWrite(MONITOR_CMD_INIT, x.toCharArray()); | |
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173 char [] c; |
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174 |
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175 while (true) { |
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176 c = pending_commands.poll(); |
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177 |
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178 if (c == null) break; |
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179 |
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180 monitorWrite(c[1], c); |
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181 } |
| 0 | 182 } |
| 183 catch (IOException e) { | |
| 184 Log.e(TAG, "exception in onServiceConnected()", e); | |
| 185 } | |
| 186 } | |
| 187 public void onServiceDisconnected(ComponentName classNam) { | |
| 188 bound = null; | |
| 189 Log.i(TAG, "unbound from service"); | |
| 190 } | |
| 191 }; | |
| 192 | |
| 193 | |
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194 public TerminalMonitor(Context parent, vt320 buffer, View view, HostBean host, String init) { |
| 0 | 195 this.parent = parent; |
| 196 this.buffer = buffer; | |
| 197 this.view = view; | |
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198 this.host = host; |
| 0 | 199 this.init = init; |
| 200 // setup the windows->android keymapping | |
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201 // http://msdn.microsoft.com/en-us/library/windows/desktop/dd375731 |
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202 keymap = new HashMap<Integer, Integer>(); |
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203 keymap.put(0x08, vt320.KEY_BACK_SPACE); // vk_back |
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204 keymap.put(0x09, vt320.KEY_TAB); // vk_tab |
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205 keymap.put(0x0d, vt320.KEY_ENTER); // vk_return |
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206 keymap.put(0x1b, vt320.KEY_ESCAPE); // vk_escape |
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207 keymap.put(0x21, vt320.KEY_PAGE_UP); // vk_prior |
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208 keymap.put(0x22, vt320.KEY_PAGE_DOWN); // vk_next |
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209 keymap.put(0x23, vt320.KEY_END); // vk_end |
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210 keymap.put(0x24, vt320.KEY_HOME); // vk_home |
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211 keymap.put(0x25, vt320.KEY_LEFT); // vk_left |
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212 keymap.put(0x26, vt320.KEY_UP); // vk_up |
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213 keymap.put(0x27, vt320.KEY_RIGHT); // vk_right |
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214 keymap.put(0x28, vt320.KEY_DOWN); // vk_down |
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215 keymap.put(0x2d, vt320.KEY_INSERT); // vk_insert |
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216 keymap.put(0x2e, vt320.KEY_DELETE); // vk_delete |
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217 keymap.put(0x70, vt320.KEY_F1); // vk_f1 |
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218 keymap.put(0x71, vt320.KEY_F2); // vk_f2 |
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219 keymap.put(0x72, vt320.KEY_F3); // vk_f3 |
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220 keymap.put(0x73, vt320.KEY_F4); // vk_f4 |
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221 keymap.put(0x74, vt320.KEY_F5); // vk_f5 |
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222 keymap.put(0x75, vt320.KEY_F6); // vk_f6 |
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223 keymap.put(0x76, vt320.KEY_F7); // vk_f7 |
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224 keymap.put(0x77, vt320.KEY_F8); // vk_f8 |
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225 keymap.put(0x78, vt320.KEY_F9); // vk_f9 |
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226 keymap.put(0x79, vt320.KEY_F10); // vk_f10 |
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227 keymap.put(0x7a, vt320.KEY_F11); // vk_f11 |
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228 keymap.put(0x7b, vt320.KEY_F12); // vk_f12 |
| 0 | 229 // bind to the monitor service |
| 230 Intent intent = new Intent("com.five_ten_sg.connectbot.monitor.MonitorService"); | |
| 231 parent.bindService(intent, monitor_connection, Context.BIND_AUTO_CREATE); | |
| 232 Log.i(TAG, "constructor"); | |
| 233 } | |
| 234 | |
| 235 | |
| 236 public void Disconnect() { | |
| 237 if (monitor_reader != null) monitor_reader.closing(); | |
| 238 | |
| 239 try { | |
| 240 if (monitor_out != null) monitor_out.close(); | |
| 241 | |
| 242 if (monitor_in != null) monitor_in.close(); | |
| 243 | |
| 244 if (monitor_socket != null) monitor_socket.close(); | |
| 245 | |
| 246 Log.i(TAG, "disconnected from monitor socket"); | |
| 247 } | |
| 248 catch (IOException e) { | |
| 249 Log.e(TAG, "exception in Disconnect() closing sockets", e); | |
| 250 } | |
| 251 | |
| 252 monitor_reader = null; | |
| 253 monitor_out = null; | |
| 254 monitor_in = null; | |
| 255 monitor_socket = null; | |
| 256 | |
| 257 if (bound != null) parent.unbindService(monitor_connection); | |
| 258 | |
| 259 monitor_connection = null; | |
| 260 } | |
| 261 | |
| 262 | |
| 263 public char[] bytesToChars(byte[] b, int len) { | |
| 264 char[] c = new char[len >> 1]; | |
| 265 int bp = 0; | |
| 266 | |
| 267 for (int i = 0; i < c.length; i++) { | |
| 268 byte b1 = b[bp++]; | |
| 269 byte b2 = b[bp++]; | |
| 270 c[i] = (char)(((b1 & 0x00FF) << 8) + (b2 & 0x00FF)); | |
| 271 } | |
| 272 | |
| 273 return c; | |
| 274 } | |
| 275 | |
| 276 | |
| 277 public byte[] charsToBytes(char[] c) { | |
| 278 byte[] b = new byte[c.length << 1]; | |
| 279 int bp = 0; | |
| 280 | |
| 281 for (int i = 0; i < c.length; i++) { | |
| 282 b[bp++] = (byte)((c[i] & 0xff00) >> 8); | |
| 283 b[bp++] = (byte)(c[i] & 0x00ff); | |
| 284 } | |
| 285 | |
| 286 return b; | |
| 287 } | |
| 288 | |
| 289 | |
| 290 public synchronized void monitorWrite(char cmd, char[] c) { | |
| 291 try { | |
| 292 if (monitor_out != null) { | |
| 293 c[0] = (char)(c.length - 1); // number of chars following | |
| 294 c[1] = cmd; | |
| 295 //Log.i(TAG, String.format("sending %d command", (int)cmd)); | |
| 296 monitor_out.write(charsToBytes(c)); | |
| 297 } | |
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298 else { |
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299 c[1] = cmd; |
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300 pending_commands.put(c); |
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301 } |
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302 } |
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303 catch (InterruptedException e) { |
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304 Log.e(TAG, "exception in monitorWrite()", e); |
| 0 | 305 } |
| 306 catch (IOException e) { | |
| 307 Log.i(TAG, "exception in monitorWrite(), monitor died or closed the socket", e); | |
| 308 | |
| 309 try { | |
| 310 monitor_out.close(); | |
| 311 } | |
| 312 catch (IOException ee) { | |
| 313 Log.e(TAG, "exception in monitorWrite() closing output stream", ee); | |
| 314 } | |
| 315 | |
| 316 monitor_out = null; | |
| 317 } | |
| 318 }; | |
| 319 | |
| 320 public void sendScreen(char cmd) { | |
| 321 char lines = (char)(buffer.height & 0x0000ffff); | |
| 322 char columns = (char)(buffer.width & 0x0000ffff); | |
| 323 char[] arg = new char[4 + lines * columns]; | |
| 324 arg[2] = lines; | |
| 325 arg[3] = columns; | |
| 326 int base = 4; | |
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327 |
| 0 | 328 for (int i = 0; i < lines; i++) { |
| 329 System.arraycopy(buffer.charArray[buffer.screenBase + i], 0, arg, base, columns); | |
| 330 base += columns; | |
| 331 } | |
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332 |
| 0 | 333 monitorWrite(cmd, arg); |
| 334 } | |
| 335 | |
| 336 public synchronized void activate() { | |
| 337 sendScreen(MONITOR_CMD_ACTIVATE); | |
| 338 } | |
| 339 | |
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340 public synchronized void keyState(boolean down) { |
| 0 | 341 char[] arg = new char[3]; |
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342 arg[2] = (char)((down) ? 1 : 0); |
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343 monitorWrite(MONITOR_CMD_KEYSTATE, arg); |
| 0 | 344 } |
| 345 | |
| 346 public synchronized void cursorMove(int l, int c) { | |
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347 moved = true; |
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348 to_line = l; |
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349 to_column = c; |
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350 } |
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351 |
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352 public void cursorMoved() { |
| 0 | 353 char[] arg = new char[4]; |
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354 arg[2] = (char)(to_line & 0x0000ffff); |
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355 arg[3] = (char)(to_column & 0x0000ffff); |
| 0 | 356 monitorWrite(MONITOR_CMD_CURSORMOVE, arg); |
| 357 } | |
| 358 | |
| 359 public synchronized void testChanged() { | |
| 360 if (modified) { | |
| 361 modified = false; | |
| 362 sendScreen(MONITOR_CMD_SCREENCHANGE); | |
| 363 } | |
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364 |
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365 if (moved) { |
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366 moved = false; |
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367 cursorMoved(); |
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368 } |
| 0 | 369 } |
| 370 | |
| 371 public synchronized void screenChanged(int llow, int lhigh, int clow, int chigh) { | |
| 372 if ((start_line <= lhigh) && (llow <= end_line) && (start_column <= chigh) && (clow <= end_column)) { | |
| 373 modified = true; | |
| 374 } | |
| 375 } | |
| 376 | |
| 377 public synchronized void screenChanged(int l, int c) { | |
| 378 screenChanged(l, l, c, c); | |
| 379 } | |
| 380 | |
| 381 public synchronized void setField(int l, int c, char[] data, int offset) { | |
| 382 Log.i(TAG, "setField()"); | |
| 101 | 383 char[] da = new char[data.length - offset]; |
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384 int i; |
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385 |
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386 for (i = 0; i < da.length; i++) { |
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387 da[i] = data[i + offset]; |
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388 } |
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389 |
| 100 | 390 buffer.setField(l, c, da); |
| 0 | 391 } |
| 392 | |
| 155 | 393 public synchronized void showUrl(char [] data, int offset) { |
| 394 Log.i(TAG, "setField()"); | |
| 395 char[] da = new char[data.length - offset]; | |
| 396 int i; | |
| 397 | |
| 398 for (i = 0; i < da.length; i++) { | |
| 399 da[i] = data[i + offset]; | |
| 400 } | |
| 401 String url = new String(da); | |
| 402 Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); | |
| 403 parent.startActivity(intent); | |
| 404 } | |
| 405 | |
| 0 | 406 public synchronized void getField(int l, int c, int len) { |
| 407 Log.i(TAG, "getField()"); | |
| 408 char[] arg2 = new char[4 + len]; | |
| 409 arg2[2] = (char)(l & 0x0000ffff); | |
| 410 arg2[3] = (char)(c & 0x0000ffff); | |
| 411 int base = 4; | |
| 412 System.arraycopy(buffer.charArray[buffer.screenBase + l], c, arg2, base, len); | |
| 413 monitorWrite(MONITOR_CMD_FIELDVALUE, arg2); | |
| 414 } | |
| 415 | |
| 416 public synchronized void screenWatch(int l, int c, int len) { | |
| 417 Log.i(TAG, "screenWatch()"); | |
| 418 start_line = l; | |
| 419 end_line = l; | |
| 420 start_column = c; | |
| 421 end_column = c + len - 1; | |
| 422 } | |
| 423 | |
| 424 public synchronized void depress(int vk_key) { | |
| 425 Log.i(TAG, String.format("depress() %d", vk_key)); | |
| 426 Integer x = keymap.get(new Integer(vk_key)); | |
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427 if (x != null) buffer.keyDepressed(x, ' ', 0); |
| 0 | 428 } |
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429 |
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430 public synchronized void switchSession() { |
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431 Log.i(TAG, "switchSession()"); |
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432 Intent intent = new Intent(parent, ConsoleActivity.class); |
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433 intent.setAction(Intent.ACTION_VIEW); |
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434 intent.setData(host.getUri()); |
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435 parent.startActivity(intent); |
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436 } |
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437 |
| 0 | 438 } |