Commit | Line | Data |
---|---|---|
daa4106c | 1 | /* |
b1589621 KL |
2 | * Jexer - Java Text User Interface |
3 | * | |
e16dda65 | 4 | * The MIT License (MIT) |
b1589621 | 5 | * |
e16dda65 | 6 | * Copyright (C) 2016 Kevin Lamonte |
b1589621 | 7 | * |
e16dda65 KL |
8 | * Permission is hereby granted, free of charge, to any person obtaining a |
9 | * copy of this software and associated documentation files (the "Software"), | |
10 | * to deal in the Software without restriction, including without limitation | |
11 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
12 | * and/or sell copies of the Software, and to permit persons to whom the | |
13 | * Software is furnished to do so, subject to the following conditions: | |
b1589621 | 14 | * |
e16dda65 KL |
15 | * The above copyright notice and this permission notice shall be included in |
16 | * all copies or substantial portions of the Software. | |
b1589621 | 17 | * |
e16dda65 KL |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
21 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
22 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
23 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | |
24 | * DEALINGS IN THE SOFTWARE. | |
7b5261bc KL |
25 | * |
26 | * @author Kevin Lamonte [kevin.lamonte@gmail.com] | |
27 | * @version 1 | |
b1589621 KL |
28 | */ |
29 | package jexer.io; | |
30 | ||
31 | import java.io.BufferedReader; | |
4328bb42 KL |
32 | import java.io.FileDescriptor; |
33 | import java.io.FileInputStream; | |
b1589621 KL |
34 | import java.io.InputStream; |
35 | import java.io.InputStreamReader; | |
36 | import java.io.IOException; | |
37 | import java.io.OutputStream; | |
38 | import java.io.OutputStreamWriter; | |
39 | import java.io.PrintWriter; | |
40 | import java.io.Reader; | |
41 | import java.io.UnsupportedEncodingException; | |
42 | import java.util.ArrayList; | |
43 | import java.util.Date; | |
44 | import java.util.List; | |
45 | import java.util.LinkedList; | |
46 | ||
b1589621 KL |
47 | import jexer.bits.Color; |
48 | import jexer.event.TInputEvent; | |
49 | import jexer.event.TKeypressEvent; | |
50 | import jexer.event.TMouseEvent; | |
51 | import jexer.event.TResizeEvent; | |
52 | import jexer.session.SessionInfo; | |
53 | import jexer.session.TSessionInfo; | |
54 | import jexer.session.TTYSessionInfo; | |
55 | import static jexer.TKeypress.*; | |
56 | ||
57 | /** | |
7b5261bc KL |
58 | * This class reads keystrokes and mouse events and emits output to ANSI |
59 | * X3.64 / ECMA-48 type terminals e.g. xterm, linux, vt100, ansi.sys, etc. | |
b1589621 | 60 | */ |
2b9c27db | 61 | public final class ECMA48Terminal implements Runnable { |
b1589621 KL |
62 | |
63 | /** | |
7b5261bc KL |
64 | * The session information. |
65 | */ | |
66 | private SessionInfo sessionInfo; | |
67 | ||
68 | /** | |
69 | * Getter for sessionInfo. | |
70 | * | |
71 | * @return the SessionInfo | |
b1589621 | 72 | */ |
2b9c27db | 73 | public SessionInfo getSessionInfo() { |
7b5261bc KL |
74 | return sessionInfo; |
75 | } | |
b1589621 | 76 | |
4328bb42 | 77 | /** |
7b5261bc | 78 | * The event queue, filled up by a thread reading on input. |
4328bb42 KL |
79 | */ |
80 | private List<TInputEvent> eventQueue; | |
81 | ||
82 | /** | |
83 | * If true, we want the reader thread to exit gracefully. | |
84 | */ | |
85 | private boolean stopReaderThread; | |
86 | ||
87 | /** | |
7b5261bc | 88 | * The reader thread. |
4328bb42 KL |
89 | */ |
90 | private Thread readerThread; | |
91 | ||
b1589621 KL |
92 | /** |
93 | * Parameters being collected. E.g. if the string is \033[1;3m, then | |
94 | * params[0] will be 1 and params[1] will be 3. | |
95 | */ | |
96 | private ArrayList<String> params; | |
97 | ||
b1589621 | 98 | /** |
7b5261bc | 99 | * States in the input parser. |
b1589621 KL |
100 | */ |
101 | private enum ParseState { | |
7b5261bc KL |
102 | GROUND, |
103 | ESCAPE, | |
104 | ESCAPE_INTERMEDIATE, | |
105 | CSI_ENTRY, | |
106 | CSI_PARAM, | |
b5f2a6db KL |
107 | MOUSE, |
108 | MOUSE_SGR, | |
b1589621 KL |
109 | } |
110 | ||
111 | /** | |
7b5261bc | 112 | * Current parsing state. |
b1589621 KL |
113 | */ |
114 | private ParseState state; | |
115 | ||
116 | /** | |
7b5261bc KL |
117 | * The time we entered ESCAPE. If we get a bare escape without a code |
118 | * following it, this is used to return that bare escape. | |
b1589621 KL |
119 | */ |
120 | private long escapeTime; | |
121 | ||
a83fea2b KL |
122 | /** |
123 | * The time we last checked the window size. We try not to spawn stty | |
124 | * more than once per second. | |
125 | */ | |
126 | private long windowSizeTime; | |
127 | ||
b1589621 KL |
128 | /** |
129 | * true if mouse1 was down. Used to report mouse1 on the release event. | |
130 | */ | |
131 | private boolean mouse1; | |
132 | ||
133 | /** | |
134 | * true if mouse2 was down. Used to report mouse2 on the release event. | |
135 | */ | |
136 | private boolean mouse2; | |
137 | ||
138 | /** | |
139 | * true if mouse3 was down. Used to report mouse3 on the release event. | |
140 | */ | |
141 | private boolean mouse3; | |
142 | ||
143 | /** | |
144 | * Cache the cursor visibility value so we only emit the sequence when we | |
145 | * need to. | |
146 | */ | |
147 | private boolean cursorOn = true; | |
148 | ||
149 | /** | |
150 | * Cache the last window size to figure out if a TResizeEvent needs to be | |
151 | * generated. | |
152 | */ | |
153 | private TResizeEvent windowResize = null; | |
154 | ||
155 | /** | |
156 | * If true, then we changed System.in and need to change it back. | |
157 | */ | |
158 | private boolean setRawMode; | |
159 | ||
160 | /** | |
161 | * The terminal's input. If an InputStream is not specified in the | |
4328bb42 KL |
162 | * constructor, then this InputStreamReader will be bound to System.in |
163 | * with UTF-8 encoding. | |
b1589621 KL |
164 | */ |
165 | private Reader input; | |
166 | ||
4328bb42 KL |
167 | /** |
168 | * The terminal's raw InputStream. If an InputStream is not specified in | |
169 | * the constructor, then this InputReader will be bound to System.in. | |
170 | * This is used by run() to see if bytes are available() before calling | |
171 | * (Reader)input.read(). | |
172 | */ | |
173 | private InputStream inputStream; | |
174 | ||
b1589621 KL |
175 | /** |
176 | * The terminal's output. If an OutputStream is not specified in the | |
177 | * constructor, then this PrintWriter will be bound to System.out with | |
178 | * UTF-8 encoding. | |
179 | */ | |
180 | private PrintWriter output; | |
181 | ||
92554d64 KL |
182 | /** |
183 | * The listening object that run() wakes up on new input. | |
184 | */ | |
185 | private Object listener; | |
186 | ||
217c6107 KL |
187 | /** |
188 | * Get the output writer. | |
189 | * | |
190 | * @return the Writer | |
191 | */ | |
192 | public PrintWriter getOutput() { | |
7b5261bc | 193 | return output; |
217c6107 KL |
194 | } |
195 | ||
623a1bd1 KL |
196 | /** |
197 | * Check if there are events in the queue. | |
198 | * | |
199 | * @return if true, getEvents() has something to return to the backend | |
200 | */ | |
201 | public boolean hasEvents() { | |
7b5261bc KL |
202 | synchronized (eventQueue) { |
203 | return (eventQueue.size() > 0); | |
204 | } | |
623a1bd1 KL |
205 | } |
206 | ||
b1589621 | 207 | /** |
7b5261bc KL |
208 | * Call 'stty' to set cooked mode. |
209 | * | |
210 | * <p>Actually executes '/bin/sh -c stty sane cooked < /dev/tty' | |
b1589621 KL |
211 | */ |
212 | private void sttyCooked() { | |
7b5261bc | 213 | doStty(false); |
b1589621 KL |
214 | } |
215 | ||
216 | /** | |
7b5261bc KL |
217 | * Call 'stty' to set raw mode. |
218 | * | |
219 | * <p>Actually executes '/bin/sh -c stty -ignbrk -brkint -parmrk -istrip | |
220 | * -inlcr -igncr -icrnl -ixon -opost -echo -echonl -icanon -isig -iexten | |
221 | * -parenb cs8 min 1 < /dev/tty' | |
b1589621 KL |
222 | */ |
223 | private void sttyRaw() { | |
7b5261bc | 224 | doStty(true); |
b1589621 KL |
225 | } |
226 | ||
227 | /** | |
228 | * Call 'stty' to set raw or cooked mode. | |
229 | * | |
230 | * @param mode if true, set raw mode, otherwise set cooked mode | |
231 | */ | |
7b5261bc KL |
232 | private void doStty(final boolean mode) { |
233 | String [] cmdRaw = { | |
234 | "/bin/sh", "-c", "stty -ignbrk -brkint -parmrk -istrip -inlcr -igncr -icrnl -ixon -opost -echo -echonl -icanon -isig -iexten -parenb cs8 min 1 < /dev/tty" | |
235 | }; | |
236 | String [] cmdCooked = { | |
237 | "/bin/sh", "-c", "stty sane cooked < /dev/tty" | |
238 | }; | |
239 | try { | |
240 | Process process; | |
2b9c27db | 241 | if (mode) { |
7b5261bc KL |
242 | process = Runtime.getRuntime().exec(cmdRaw); |
243 | } else { | |
244 | process = Runtime.getRuntime().exec(cmdCooked); | |
245 | } | |
246 | BufferedReader in = new BufferedReader(new InputStreamReader(process.getInputStream(), "UTF-8")); | |
247 | String line = in.readLine(); | |
248 | if ((line != null) && (line.length() > 0)) { | |
249 | System.err.println("WEIRD?! Normal output from stty: " + line); | |
250 | } | |
251 | while (true) { | |
252 | BufferedReader err = new BufferedReader(new InputStreamReader(process.getErrorStream(), "UTF-8")); | |
253 | line = err.readLine(); | |
254 | if ((line != null) && (line.length() > 0)) { | |
255 | System.err.println("Error output from stty: " + line); | |
256 | } | |
257 | try { | |
258 | process.waitFor(); | |
259 | break; | |
260 | } catch (InterruptedException e) { | |
261 | e.printStackTrace(); | |
262 | } | |
263 | } | |
264 | int rc = process.exitValue(); | |
265 | if (rc != 0) { | |
266 | System.err.println("stty returned error code: " + rc); | |
267 | } | |
268 | } catch (IOException e) { | |
269 | e.printStackTrace(); | |
270 | } | |
b1589621 KL |
271 | } |
272 | ||
273 | /** | |
7b5261bc | 274 | * Constructor sets up state for getEvent(). |
b1589621 | 275 | * |
92554d64 KL |
276 | * @param listener the object this backend needs to wake up when new |
277 | * input comes in | |
b1589621 KL |
278 | * @param input an InputStream connected to the remote user, or null for |
279 | * System.in. If System.in is used, then on non-Windows systems it will | |
280 | * be put in raw mode; shutdown() will (blindly!) put System.in in cooked | |
281 | * mode. input is always converted to a Reader with UTF-8 encoding. | |
282 | * @param output an OutputStream connected to the remote user, or null | |
283 | * for System.out. output is always converted to a Writer with UTF-8 | |
284 | * encoding. | |
7b5261bc KL |
285 | * @throws UnsupportedEncodingException if an exception is thrown when |
286 | * creating the InputStreamReader | |
b1589621 | 287 | */ |
92554d64 | 288 | public ECMA48Terminal(final Object listener, final InputStream input, |
7b5261bc KL |
289 | final OutputStream output) throws UnsupportedEncodingException { |
290 | ||
291 | reset(); | |
292 | mouse1 = false; | |
293 | mouse2 = false; | |
294 | mouse3 = false; | |
295 | stopReaderThread = false; | |
92554d64 | 296 | this.listener = listener; |
7b5261bc KL |
297 | |
298 | if (input == null) { | |
299 | // inputStream = System.in; | |
300 | inputStream = new FileInputStream(FileDescriptor.in); | |
301 | sttyRaw(); | |
302 | setRawMode = true; | |
303 | } else { | |
304 | inputStream = input; | |
305 | } | |
306 | this.input = new InputStreamReader(inputStream, "UTF-8"); | |
307 | ||
7b5261bc | 308 | if (input instanceof SessionInfo) { |
ea91242c KL |
309 | // This is a TelnetInputStream that exposes window size and |
310 | // environment variables from the telnet layer. | |
7b5261bc KL |
311 | sessionInfo = (SessionInfo) input; |
312 | } | |
313 | if (sessionInfo == null) { | |
314 | if (input == null) { | |
315 | // Reading right off the tty | |
316 | sessionInfo = new TTYSessionInfo(); | |
317 | } else { | |
318 | sessionInfo = new TSessionInfo(); | |
319 | } | |
320 | } | |
321 | ||
322 | if (output == null) { | |
323 | this.output = new PrintWriter(new OutputStreamWriter(System.out, | |
324 | "UTF-8")); | |
325 | } else { | |
326 | this.output = new PrintWriter(new OutputStreamWriter(output, | |
327 | "UTF-8")); | |
328 | } | |
329 | ||
330 | // Enable mouse reporting and metaSendsEscape | |
331 | this.output.printf("%s%s", mouse(true), xtermMetaSendsEscape(true)); | |
55b4f29b | 332 | this.output.flush(); |
7b5261bc KL |
333 | |
334 | // Hang onto the window size | |
335 | windowResize = new TResizeEvent(TResizeEvent.Type.SCREEN, | |
336 | sessionInfo.getWindowWidth(), sessionInfo.getWindowHeight()); | |
337 | ||
338 | // Spin up the input reader | |
339 | eventQueue = new LinkedList<TInputEvent>(); | |
340 | readerThread = new Thread(this); | |
341 | readerThread.start(); | |
b1589621 KL |
342 | } |
343 | ||
6985c572 KL |
344 | /** |
345 | * Constructor sets up state for getEvent(). | |
346 | * | |
347 | * @param listener the object this backend needs to wake up when new | |
348 | * input comes in | |
349 | * @param input the InputStream underlying 'reader'. Its available() | |
350 | * method is used to determine if reader.read() will block or not. | |
351 | * @param reader a Reader connected to the remote user. | |
352 | * @param writer a PrintWriter connected to the remote user. | |
353 | * @param setRawMode if true, set System.in into raw mode with stty. | |
354 | * This should in general not be used. It is here solely for Demo3, | |
355 | * which uses System.in. | |
356 | * @throws IllegalArgumentException if input, reader, or writer are null. | |
357 | */ | |
358 | public ECMA48Terminal(final Object listener, final InputStream input, | |
359 | final Reader reader, final PrintWriter writer, | |
360 | final boolean setRawMode) { | |
361 | ||
362 | if (input == null) { | |
363 | throw new IllegalArgumentException("InputStream must be specified"); | |
364 | } | |
365 | if (reader == null) { | |
366 | throw new IllegalArgumentException("Reader must be specified"); | |
367 | } | |
368 | if (writer == null) { | |
369 | throw new IllegalArgumentException("Writer must be specified"); | |
370 | } | |
371 | reset(); | |
372 | mouse1 = false; | |
373 | mouse2 = false; | |
374 | mouse3 = false; | |
375 | stopReaderThread = false; | |
376 | this.listener = listener; | |
377 | ||
378 | inputStream = input; | |
379 | this.input = reader; | |
380 | ||
381 | if (setRawMode == true) { | |
382 | sttyRaw(); | |
383 | } | |
384 | this.setRawMode = setRawMode; | |
385 | ||
386 | if (input instanceof SessionInfo) { | |
387 | // This is a TelnetInputStream that exposes window size and | |
388 | // environment variables from the telnet layer. | |
389 | sessionInfo = (SessionInfo) input; | |
390 | } | |
391 | if (sessionInfo == null) { | |
31b7033c KL |
392 | if (setRawMode == true) { |
393 | // Reading right off the tty | |
394 | sessionInfo = new TTYSessionInfo(); | |
395 | } else { | |
396 | sessionInfo = new TSessionInfo(); | |
397 | } | |
6985c572 KL |
398 | } |
399 | ||
400 | this.output = writer; | |
401 | ||
402 | // Enable mouse reporting and metaSendsEscape | |
403 | this.output.printf("%s%s", mouse(true), xtermMetaSendsEscape(true)); | |
404 | this.output.flush(); | |
405 | ||
406 | // Hang onto the window size | |
407 | windowResize = new TResizeEvent(TResizeEvent.Type.SCREEN, | |
408 | sessionInfo.getWindowWidth(), sessionInfo.getWindowHeight()); | |
409 | ||
410 | // Spin up the input reader | |
411 | eventQueue = new LinkedList<TInputEvent>(); | |
412 | readerThread = new Thread(this); | |
413 | readerThread.start(); | |
414 | } | |
415 | ||
416 | /** | |
417 | * Constructor sets up state for getEvent(). | |
418 | * | |
419 | * @param listener the object this backend needs to wake up when new | |
420 | * input comes in | |
421 | * @param input the InputStream underlying 'reader'. Its available() | |
422 | * method is used to determine if reader.read() will block or not. | |
423 | * @param reader a Reader connected to the remote user. | |
424 | * @param writer a PrintWriter connected to the remote user. | |
425 | * @throws IllegalArgumentException if input, reader, or writer are null. | |
426 | */ | |
427 | public ECMA48Terminal(final Object listener, final InputStream input, | |
428 | final Reader reader, final PrintWriter writer) { | |
429 | ||
430 | this(listener, input, reader, writer, false); | |
431 | } | |
432 | ||
b1589621 | 433 | /** |
7b5261bc | 434 | * Restore terminal to normal state. |
b1589621 KL |
435 | */ |
436 | public void shutdown() { | |
4328bb42 | 437 | |
7b5261bc KL |
438 | // System.err.println("=== shutdown() ==="); System.err.flush(); |
439 | ||
440 | // Tell the reader thread to stop looking at input | |
441 | stopReaderThread = true; | |
442 | try { | |
443 | readerThread.join(); | |
444 | } catch (InterruptedException e) { | |
445 | e.printStackTrace(); | |
446 | } | |
447 | ||
448 | // Disable mouse reporting and show cursor | |
449 | output.printf("%s%s%s", mouse(false), cursor(true), normal()); | |
450 | output.flush(); | |
451 | ||
452 | if (setRawMode) { | |
453 | sttyCooked(); | |
454 | setRawMode = false; | |
455 | // We don't close System.in/out | |
456 | } else { | |
457 | // Shut down the streams, this should wake up the reader thread | |
458 | // and make it exit. | |
459 | try { | |
460 | if (input != null) { | |
461 | input.close(); | |
462 | input = null; | |
463 | } | |
464 | if (output != null) { | |
465 | output.close(); | |
466 | output = null; | |
467 | } | |
468 | } catch (IOException e) { | |
469 | e.printStackTrace(); | |
470 | } | |
471 | } | |
b1589621 KL |
472 | } |
473 | ||
474 | /** | |
7b5261bc | 475 | * Flush output. |
b1589621 KL |
476 | */ |
477 | public void flush() { | |
7b5261bc | 478 | output.flush(); |
b1589621 KL |
479 | } |
480 | ||
481 | /** | |
7b5261bc | 482 | * Reset keyboard/mouse input parser. |
b1589621 KL |
483 | */ |
484 | private void reset() { | |
7b5261bc KL |
485 | state = ParseState.GROUND; |
486 | params = new ArrayList<String>(); | |
7b5261bc KL |
487 | params.clear(); |
488 | params.add(""); | |
b1589621 KL |
489 | } |
490 | ||
491 | /** | |
492 | * Produce a control character or one of the special ones (ENTER, TAB, | |
7b5261bc | 493 | * etc.). |
b1589621 KL |
494 | * |
495 | * @param ch Unicode code point | |
b299e69c | 496 | * @param alt if true, set alt on the TKeypress |
7b5261bc | 497 | * @return one TKeypress event, either a control character (e.g. isKey == |
b1589621 KL |
498 | * false, ch == 'A', ctrl == true), or a special key (e.g. isKey == true, |
499 | * fnKey == ESC) | |
500 | */ | |
b299e69c | 501 | private TKeypressEvent controlChar(final char ch, final boolean alt) { |
7b5261bc KL |
502 | // System.err.printf("controlChar: %02x\n", ch); |
503 | ||
504 | switch (ch) { | |
505 | case 0x0D: | |
506 | // Carriage return --> ENTER | |
b299e69c | 507 | return new TKeypressEvent(kbEnter, alt, false, false); |
7b5261bc KL |
508 | case 0x0A: |
509 | // Linefeed --> ENTER | |
b299e69c | 510 | return new TKeypressEvent(kbEnter, alt, false, false); |
7b5261bc KL |
511 | case 0x1B: |
512 | // ESC | |
b299e69c | 513 | return new TKeypressEvent(kbEsc, alt, false, false); |
7b5261bc KL |
514 | case '\t': |
515 | // TAB | |
b299e69c | 516 | return new TKeypressEvent(kbTab, alt, false, false); |
7b5261bc KL |
517 | default: |
518 | // Make all other control characters come back as the alphabetic | |
519 | // character with the ctrl field set. So SOH would be 'A' + | |
520 | // ctrl. | |
b299e69c KL |
521 | return new TKeypressEvent(false, 0, (char)(ch + 0x40), |
522 | alt, true, false); | |
7b5261bc | 523 | } |
b1589621 KL |
524 | } |
525 | ||
526 | /** | |
527 | * Produce special key from CSI Pn ; Pm ; ... ~ | |
528 | * | |
529 | * @return one KEYPRESS event representing a special key | |
530 | */ | |
531 | private TInputEvent csiFnKey() { | |
7b5261bc | 532 | int key = 0; |
7b5261bc KL |
533 | if (params.size() > 0) { |
534 | key = Integer.parseInt(params.get(0)); | |
535 | } | |
b299e69c KL |
536 | boolean alt = false; |
537 | boolean ctrl = false; | |
538 | boolean shift = false; | |
32437017 KL |
539 | if (params.size() > 1) { |
540 | shift = csiIsShift(params.get(1)); | |
541 | alt = csiIsAlt(params.get(1)); | |
542 | ctrl = csiIsCtrl(params.get(1)); | |
b299e69c | 543 | } |
d4a29741 | 544 | |
b299e69c KL |
545 | switch (key) { |
546 | case 1: | |
547 | return new TKeypressEvent(kbHome, alt, ctrl, shift); | |
548 | case 2: | |
549 | return new TKeypressEvent(kbIns, alt, ctrl, shift); | |
550 | case 3: | |
551 | return new TKeypressEvent(kbDel, alt, ctrl, shift); | |
552 | case 4: | |
553 | return new TKeypressEvent(kbEnd, alt, ctrl, shift); | |
554 | case 5: | |
555 | return new TKeypressEvent(kbPgUp, alt, ctrl, shift); | |
556 | case 6: | |
557 | return new TKeypressEvent(kbPgDn, alt, ctrl, shift); | |
558 | case 15: | |
559 | return new TKeypressEvent(kbF5, alt, ctrl, shift); | |
560 | case 17: | |
561 | return new TKeypressEvent(kbF6, alt, ctrl, shift); | |
562 | case 18: | |
563 | return new TKeypressEvent(kbF7, alt, ctrl, shift); | |
564 | case 19: | |
565 | return new TKeypressEvent(kbF8, alt, ctrl, shift); | |
566 | case 20: | |
567 | return new TKeypressEvent(kbF9, alt, ctrl, shift); | |
568 | case 21: | |
569 | return new TKeypressEvent(kbF10, alt, ctrl, shift); | |
570 | case 23: | |
571 | return new TKeypressEvent(kbF11, alt, ctrl, shift); | |
572 | case 24: | |
573 | return new TKeypressEvent(kbF12, alt, ctrl, shift); | |
7b5261bc KL |
574 | default: |
575 | // Unknown | |
576 | return null; | |
577 | } | |
b1589621 KL |
578 | } |
579 | ||
580 | /** | |
581 | * Produce mouse events based on "Any event tracking" and UTF-8 | |
582 | * coordinates. See | |
583 | * http://invisible-island.net/xterm/ctlseqs/ctlseqs.html#Mouse%20Tracking | |
584 | * | |
585 | * @return a MOUSE_MOTION, MOUSE_UP, or MOUSE_DOWN event | |
586 | */ | |
587 | private TInputEvent parseMouse() { | |
7b5261bc KL |
588 | int buttons = params.get(0).charAt(0) - 32; |
589 | int x = params.get(0).charAt(1) - 32 - 1; | |
590 | int y = params.get(0).charAt(2) - 32 - 1; | |
591 | ||
592 | // Clamp X and Y to the physical screen coordinates. | |
593 | if (x >= windowResize.getWidth()) { | |
594 | x = windowResize.getWidth() - 1; | |
595 | } | |
596 | if (y >= windowResize.getHeight()) { | |
597 | y = windowResize.getHeight() - 1; | |
598 | } | |
599 | ||
d4a29741 KL |
600 | TMouseEvent.Type eventType = TMouseEvent.Type.MOUSE_DOWN; |
601 | boolean eventMouse1 = false; | |
602 | boolean eventMouse2 = false; | |
603 | boolean eventMouse3 = false; | |
604 | boolean eventMouseWheelUp = false; | |
605 | boolean eventMouseWheelDown = false; | |
7b5261bc KL |
606 | |
607 | // System.err.printf("buttons: %04x\r\n", buttons); | |
608 | ||
609 | switch (buttons) { | |
610 | case 0: | |
d4a29741 | 611 | eventMouse1 = true; |
7b5261bc KL |
612 | mouse1 = true; |
613 | break; | |
614 | case 1: | |
d4a29741 | 615 | eventMouse2 = true; |
7b5261bc KL |
616 | mouse2 = true; |
617 | break; | |
618 | case 2: | |
d4a29741 | 619 | eventMouse3 = true; |
7b5261bc KL |
620 | mouse3 = true; |
621 | break; | |
622 | case 3: | |
623 | // Release or Move | |
624 | if (!mouse1 && !mouse2 && !mouse3) { | |
d4a29741 | 625 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc | 626 | } else { |
d4a29741 | 627 | eventType = TMouseEvent.Type.MOUSE_UP; |
7b5261bc KL |
628 | } |
629 | if (mouse1) { | |
630 | mouse1 = false; | |
d4a29741 | 631 | eventMouse1 = true; |
7b5261bc KL |
632 | } |
633 | if (mouse2) { | |
634 | mouse2 = false; | |
d4a29741 | 635 | eventMouse2 = true; |
7b5261bc KL |
636 | } |
637 | if (mouse3) { | |
638 | mouse3 = false; | |
d4a29741 | 639 | eventMouse3 = true; |
7b5261bc KL |
640 | } |
641 | break; | |
642 | ||
643 | case 32: | |
644 | // Dragging with mouse1 down | |
d4a29741 | 645 | eventMouse1 = true; |
7b5261bc | 646 | mouse1 = true; |
d4a29741 | 647 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
648 | break; |
649 | ||
650 | case 33: | |
651 | // Dragging with mouse2 down | |
d4a29741 | 652 | eventMouse2 = true; |
7b5261bc | 653 | mouse2 = true; |
d4a29741 | 654 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
655 | break; |
656 | ||
657 | case 34: | |
658 | // Dragging with mouse3 down | |
d4a29741 | 659 | eventMouse3 = true; |
7b5261bc | 660 | mouse3 = true; |
d4a29741 | 661 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
662 | break; |
663 | ||
664 | case 96: | |
665 | // Dragging with mouse2 down after wheelUp | |
d4a29741 | 666 | eventMouse2 = true; |
7b5261bc | 667 | mouse2 = true; |
d4a29741 | 668 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
669 | break; |
670 | ||
671 | case 97: | |
672 | // Dragging with mouse2 down after wheelDown | |
d4a29741 | 673 | eventMouse2 = true; |
7b5261bc | 674 | mouse2 = true; |
d4a29741 | 675 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
676 | break; |
677 | ||
678 | case 64: | |
d4a29741 | 679 | eventMouseWheelUp = true; |
7b5261bc KL |
680 | break; |
681 | ||
682 | case 65: | |
d4a29741 | 683 | eventMouseWheelDown = true; |
7b5261bc KL |
684 | break; |
685 | ||
686 | default: | |
687 | // Unknown, just make it motion | |
d4a29741 | 688 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
689 | break; |
690 | } | |
d4a29741 KL |
691 | return new TMouseEvent(eventType, x, y, x, y, |
692 | eventMouse1, eventMouse2, eventMouse3, | |
693 | eventMouseWheelUp, eventMouseWheelDown); | |
b1589621 KL |
694 | } |
695 | ||
b5f2a6db KL |
696 | /** |
697 | * Produce mouse events based on "Any event tracking" and SGR | |
698 | * coordinates. See | |
699 | * http://invisible-island.net/xterm/ctlseqs/ctlseqs.html#Mouse%20Tracking | |
700 | * | |
701 | * @param release if true, this was a release ('m') | |
702 | * @return a MOUSE_MOTION, MOUSE_UP, or MOUSE_DOWN event | |
703 | */ | |
704 | private TInputEvent parseMouseSGR(final boolean release) { | |
705 | // SGR extended coordinates - mode 1006 | |
706 | if (params.size() < 3) { | |
707 | // Invalid position, bail out. | |
708 | return null; | |
709 | } | |
710 | int buttons = Integer.parseInt(params.get(0)); | |
711 | int x = Integer.parseInt(params.get(1)) - 1; | |
712 | int y = Integer.parseInt(params.get(2)) - 1; | |
713 | ||
714 | // Clamp X and Y to the physical screen coordinates. | |
715 | if (x >= windowResize.getWidth()) { | |
716 | x = windowResize.getWidth() - 1; | |
717 | } | |
718 | if (y >= windowResize.getHeight()) { | |
719 | y = windowResize.getHeight() - 1; | |
720 | } | |
721 | ||
722 | TMouseEvent.Type eventType = TMouseEvent.Type.MOUSE_DOWN; | |
723 | boolean eventMouse1 = false; | |
724 | boolean eventMouse2 = false; | |
725 | boolean eventMouse3 = false; | |
726 | boolean eventMouseWheelUp = false; | |
727 | boolean eventMouseWheelDown = false; | |
728 | ||
729 | if (release) { | |
730 | eventType = TMouseEvent.Type.MOUSE_UP; | |
731 | } | |
732 | ||
733 | switch (buttons) { | |
734 | case 0: | |
735 | eventMouse1 = true; | |
736 | break; | |
737 | case 1: | |
738 | eventMouse2 = true; | |
739 | break; | |
740 | case 2: | |
741 | eventMouse3 = true; | |
742 | break; | |
743 | case 35: | |
744 | // Motion only, no buttons down | |
745 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
746 | break; | |
747 | ||
748 | case 32: | |
749 | // Dragging with mouse1 down | |
750 | eventMouse1 = true; | |
751 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
752 | break; | |
753 | ||
754 | case 33: | |
755 | // Dragging with mouse2 down | |
756 | eventMouse2 = true; | |
757 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
758 | break; | |
759 | ||
760 | case 34: | |
761 | // Dragging with mouse3 down | |
762 | eventMouse3 = true; | |
763 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
764 | break; | |
765 | ||
766 | case 96: | |
767 | // Dragging with mouse2 down after wheelUp | |
768 | eventMouse2 = true; | |
769 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
770 | break; | |
771 | ||
772 | case 97: | |
773 | // Dragging with mouse2 down after wheelDown | |
774 | eventMouse2 = true; | |
775 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
776 | break; | |
777 | ||
778 | case 64: | |
779 | eventMouseWheelUp = true; | |
780 | break; | |
781 | ||
782 | case 65: | |
783 | eventMouseWheelDown = true; | |
784 | break; | |
785 | ||
786 | default: | |
787 | // Unknown, bail out | |
788 | return null; | |
789 | } | |
790 | return new TMouseEvent(eventType, x, y, x, y, | |
791 | eventMouse1, eventMouse2, eventMouse3, | |
792 | eventMouseWheelUp, eventMouseWheelDown); | |
793 | } | |
794 | ||
b1589621 | 795 | /** |
05dbb28d | 796 | * Return any events in the IO queue. |
b1589621 | 797 | * |
623a1bd1 | 798 | * @param queue list to append new events to |
05dbb28d | 799 | */ |
7b5261bc KL |
800 | public void getEvents(final List<TInputEvent> queue) { |
801 | synchronized (eventQueue) { | |
802 | if (eventQueue.size() > 0) { | |
8e688b92 KL |
803 | synchronized (queue) { |
804 | queue.addAll(eventQueue); | |
805 | } | |
7b5261bc KL |
806 | eventQueue.clear(); |
807 | } | |
808 | } | |
05dbb28d KL |
809 | } |
810 | ||
811 | /** | |
623a1bd1 | 812 | * Return any events in the IO queue due to timeout. |
b1589621 | 813 | * |
623a1bd1 | 814 | * @param queue list to append new events to |
b1589621 | 815 | */ |
a83fea2b KL |
816 | private void getIdleEvents(final List<TInputEvent> queue) { |
817 | Date now = new Date(); | |
7b5261bc KL |
818 | |
819 | // Check for new window size | |
a83fea2b KL |
820 | long windowSizeDelay = now.getTime() - windowSizeTime; |
821 | if (windowSizeDelay > 1000) { | |
822 | sessionInfo.queryWindowSize(); | |
823 | int newWidth = sessionInfo.getWindowWidth(); | |
824 | int newHeight = sessionInfo.getWindowHeight(); | |
825 | if ((newWidth != windowResize.getWidth()) | |
826 | || (newHeight != windowResize.getHeight()) | |
827 | ) { | |
828 | TResizeEvent event = new TResizeEvent(TResizeEvent.Type.SCREEN, | |
829 | newWidth, newHeight); | |
830 | windowResize = new TResizeEvent(TResizeEvent.Type.SCREEN, | |
831 | newWidth, newHeight); | |
832 | queue.add(event); | |
7b5261bc | 833 | } |
a83fea2b | 834 | windowSizeTime = now.getTime(); |
7b5261bc KL |
835 | } |
836 | ||
a83fea2b KL |
837 | // ESCDELAY type timeout |
838 | if (state == ParseState.ESCAPE) { | |
839 | long escDelay = now.getTime() - escapeTime; | |
840 | if (escDelay > 100) { | |
841 | // After 0.1 seconds, assume a true escape character | |
842 | queue.add(controlChar((char)0x1B, false)); | |
843 | reset(); | |
7b5261bc KL |
844 | } |
845 | } | |
b1589621 KL |
846 | } |
847 | ||
32437017 KL |
848 | /** |
849 | * Returns true if the CSI parameter for a keyboard command means that | |
850 | * shift was down. | |
851 | */ | |
852 | private boolean csiIsShift(final String x) { | |
853 | if ((x.equals("2")) | |
854 | || (x.equals("4")) | |
855 | || (x.equals("6")) | |
856 | || (x.equals("8")) | |
857 | ) { | |
858 | return true; | |
859 | } | |
860 | return false; | |
861 | } | |
862 | ||
863 | /** | |
864 | * Returns true if the CSI parameter for a keyboard command means that | |
865 | * alt was down. | |
866 | */ | |
867 | private boolean csiIsAlt(final String x) { | |
868 | if ((x.equals("3")) | |
869 | || (x.equals("4")) | |
870 | || (x.equals("7")) | |
871 | || (x.equals("8")) | |
872 | ) { | |
873 | return true; | |
874 | } | |
875 | return false; | |
876 | } | |
877 | ||
878 | /** | |
879 | * Returns true if the CSI parameter for a keyboard command means that | |
880 | * ctrl was down. | |
881 | */ | |
882 | private boolean csiIsCtrl(final String x) { | |
883 | if ((x.equals("5")) | |
884 | || (x.equals("6")) | |
885 | || (x.equals("7")) | |
886 | || (x.equals("8")) | |
887 | ) { | |
888 | return true; | |
889 | } | |
890 | return false; | |
891 | } | |
892 | ||
b1589621 KL |
893 | /** |
894 | * Parses the next character of input to see if an InputEvent is | |
895 | * fully here. | |
896 | * | |
623a1bd1 | 897 | * @param events list to append new events to |
05dbb28d | 898 | * @param ch Unicode code point |
b1589621 | 899 | */ |
7b5261bc KL |
900 | private void processChar(final List<TInputEvent> events, final char ch) { |
901 | ||
7b5261bc | 902 | // ESCDELAY type timeout |
b299e69c | 903 | Date now = new Date(); |
7b5261bc KL |
904 | if (state == ParseState.ESCAPE) { |
905 | long escDelay = now.getTime() - escapeTime; | |
906 | if (escDelay > 250) { | |
907 | // After 0.25 seconds, assume a true escape character | |
b299e69c | 908 | events.add(controlChar((char)0x1B, false)); |
7b5261bc KL |
909 | reset(); |
910 | } | |
911 | } | |
912 | ||
b299e69c KL |
913 | // TKeypress fields |
914 | boolean ctrl = false; | |
915 | boolean alt = false; | |
916 | boolean shift = false; | |
b299e69c | 917 | |
7b5261bc KL |
918 | // System.err.printf("state: %s ch %c\r\n", state, ch); |
919 | ||
920 | switch (state) { | |
921 | case GROUND: | |
922 | ||
923 | if (ch == 0x1B) { | |
924 | state = ParseState.ESCAPE; | |
925 | escapeTime = now.getTime(); | |
926 | return; | |
927 | } | |
928 | ||
929 | if (ch <= 0x1F) { | |
930 | // Control character | |
b299e69c | 931 | events.add(controlChar(ch, false)); |
7b5261bc KL |
932 | reset(); |
933 | return; | |
934 | } | |
935 | ||
936 | if (ch >= 0x20) { | |
937 | // Normal character | |
b299e69c KL |
938 | events.add(new TKeypressEvent(false, 0, ch, |
939 | false, false, false)); | |
7b5261bc KL |
940 | reset(); |
941 | return; | |
942 | } | |
943 | ||
944 | break; | |
945 | ||
946 | case ESCAPE: | |
947 | if (ch <= 0x1F) { | |
948 | // ALT-Control character | |
b299e69c | 949 | events.add(controlChar(ch, true)); |
7b5261bc KL |
950 | reset(); |
951 | return; | |
952 | } | |
953 | ||
954 | if (ch == 'O') { | |
955 | // This will be one of the function keys | |
956 | state = ParseState.ESCAPE_INTERMEDIATE; | |
957 | return; | |
958 | } | |
959 | ||
960 | // '[' goes to CSI_ENTRY | |
961 | if (ch == '[') { | |
962 | state = ParseState.CSI_ENTRY; | |
963 | return; | |
964 | } | |
965 | ||
966 | // Everything else is assumed to be Alt-keystroke | |
7b5261bc | 967 | if ((ch >= 'A') && (ch <= 'Z')) { |
b299e69c | 968 | shift = true; |
7b5261bc | 969 | } |
b299e69c KL |
970 | alt = true; |
971 | events.add(new TKeypressEvent(false, 0, ch, alt, ctrl, shift)); | |
7b5261bc KL |
972 | reset(); |
973 | return; | |
974 | ||
975 | case ESCAPE_INTERMEDIATE: | |
976 | if ((ch >= 'P') && (ch <= 'S')) { | |
977 | // Function key | |
7b5261bc KL |
978 | switch (ch) { |
979 | case 'P': | |
b299e69c | 980 | events.add(new TKeypressEvent(kbF1)); |
7b5261bc KL |
981 | break; |
982 | case 'Q': | |
b299e69c | 983 | events.add(new TKeypressEvent(kbF2)); |
7b5261bc KL |
984 | break; |
985 | case 'R': | |
b299e69c | 986 | events.add(new TKeypressEvent(kbF3)); |
7b5261bc KL |
987 | break; |
988 | case 'S': | |
b299e69c | 989 | events.add(new TKeypressEvent(kbF4)); |
7b5261bc KL |
990 | break; |
991 | default: | |
992 | break; | |
993 | } | |
7b5261bc KL |
994 | reset(); |
995 | return; | |
996 | } | |
997 | ||
998 | // Unknown keystroke, ignore | |
999 | reset(); | |
1000 | return; | |
1001 | ||
1002 | case CSI_ENTRY: | |
1003 | // Numbers - parameter values | |
1004 | if ((ch >= '0') && (ch <= '9')) { | |
92554d64 KL |
1005 | params.set(params.size() - 1, |
1006 | params.get(params.size() - 1) + ch); | |
7b5261bc KL |
1007 | state = ParseState.CSI_PARAM; |
1008 | return; | |
1009 | } | |
1010 | // Parameter separator | |
1011 | if (ch == ';') { | |
a83fea2b | 1012 | params.add(""); |
7b5261bc KL |
1013 | return; |
1014 | } | |
1015 | ||
1016 | if ((ch >= 0x30) && (ch <= 0x7E)) { | |
1017 | switch (ch) { | |
1018 | case 'A': | |
1019 | // Up | |
b299e69c | 1020 | events.add(new TKeypressEvent(kbUp, alt, ctrl, shift)); |
7b5261bc KL |
1021 | reset(); |
1022 | return; | |
1023 | case 'B': | |
1024 | // Down | |
b299e69c | 1025 | events.add(new TKeypressEvent(kbDown, alt, ctrl, shift)); |
7b5261bc KL |
1026 | reset(); |
1027 | return; | |
1028 | case 'C': | |
1029 | // Right | |
b299e69c | 1030 | events.add(new TKeypressEvent(kbRight, alt, ctrl, shift)); |
7b5261bc KL |
1031 | reset(); |
1032 | return; | |
1033 | case 'D': | |
1034 | // Left | |
b299e69c | 1035 | events.add(new TKeypressEvent(kbLeft, alt, ctrl, shift)); |
7b5261bc KL |
1036 | reset(); |
1037 | return; | |
1038 | case 'H': | |
1039 | // Home | |
b299e69c | 1040 | events.add(new TKeypressEvent(kbHome)); |
7b5261bc KL |
1041 | reset(); |
1042 | return; | |
1043 | case 'F': | |
1044 | // End | |
b299e69c | 1045 | events.add(new TKeypressEvent(kbEnd)); |
7b5261bc KL |
1046 | reset(); |
1047 | return; | |
1048 | case 'Z': | |
1049 | // CBT - Cursor backward X tab stops (default 1) | |
b299e69c | 1050 | events.add(new TKeypressEvent(kbBackTab)); |
7b5261bc KL |
1051 | reset(); |
1052 | return; | |
1053 | case 'M': | |
1054 | // Mouse position | |
1055 | state = ParseState.MOUSE; | |
1056 | return; | |
b5f2a6db KL |
1057 | case '<': |
1058 | // Mouse position, SGR (1006) coordinates | |
1059 | state = ParseState.MOUSE_SGR; | |
1060 | return; | |
7b5261bc KL |
1061 | default: |
1062 | break; | |
1063 | } | |
1064 | } | |
1065 | ||
1066 | // Unknown keystroke, ignore | |
1067 | reset(); | |
1068 | return; | |
1069 | ||
b5f2a6db KL |
1070 | case MOUSE_SGR: |
1071 | // Numbers - parameter values | |
1072 | if ((ch >= '0') && (ch <= '9')) { | |
1073 | params.set(params.size() - 1, | |
1074 | params.get(params.size() - 1) + ch); | |
1075 | return; | |
1076 | } | |
1077 | // Parameter separator | |
1078 | if (ch == ';') { | |
1079 | params.add(""); | |
1080 | return; | |
1081 | } | |
1082 | ||
1083 | switch (ch) { | |
1084 | case 'M': | |
1085 | // Generate a mouse press event | |
1086 | TInputEvent event = parseMouseSGR(false); | |
1087 | if (event != null) { | |
1088 | events.add(event); | |
1089 | } | |
1090 | reset(); | |
1091 | return; | |
1092 | case 'm': | |
1093 | // Generate a mouse release event | |
1094 | event = parseMouseSGR(true); | |
1095 | if (event != null) { | |
1096 | events.add(event); | |
1097 | } | |
1098 | reset(); | |
1099 | return; | |
1100 | default: | |
1101 | break; | |
1102 | } | |
1103 | ||
1104 | // Unknown keystroke, ignore | |
1105 | reset(); | |
1106 | return; | |
1107 | ||
7b5261bc KL |
1108 | case CSI_PARAM: |
1109 | // Numbers - parameter values | |
1110 | if ((ch >= '0') && (ch <= '9')) { | |
92554d64 KL |
1111 | params.set(params.size() - 1, |
1112 | params.get(params.size() - 1) + ch); | |
7b5261bc KL |
1113 | state = ParseState.CSI_PARAM; |
1114 | return; | |
1115 | } | |
1116 | // Parameter separator | |
1117 | if (ch == ';') { | |
92554d64 | 1118 | params.add(""); |
7b5261bc KL |
1119 | return; |
1120 | } | |
1121 | ||
1122 | if (ch == '~') { | |
1123 | events.add(csiFnKey()); | |
1124 | reset(); | |
1125 | return; | |
1126 | } | |
1127 | ||
1128 | if ((ch >= 0x30) && (ch <= 0x7E)) { | |
1129 | switch (ch) { | |
1130 | case 'A': | |
1131 | // Up | |
7b5261bc | 1132 | if (params.size() > 1) { |
32437017 KL |
1133 | shift = csiIsShift(params.get(1)); |
1134 | alt = csiIsAlt(params.get(1)); | |
1135 | ctrl = csiIsCtrl(params.get(1)); | |
7b5261bc | 1136 | } |
b299e69c | 1137 | events.add(new TKeypressEvent(kbUp, alt, ctrl, shift)); |
7b5261bc KL |
1138 | reset(); |
1139 | return; | |
1140 | case 'B': | |
1141 | // Down | |
7b5261bc | 1142 | if (params.size() > 1) { |
32437017 KL |
1143 | shift = csiIsShift(params.get(1)); |
1144 | alt = csiIsAlt(params.get(1)); | |
1145 | ctrl = csiIsCtrl(params.get(1)); | |
7b5261bc | 1146 | } |
b299e69c | 1147 | events.add(new TKeypressEvent(kbDown, alt, ctrl, shift)); |
7b5261bc KL |
1148 | reset(); |
1149 | return; | |
1150 | case 'C': | |
1151 | // Right | |
7b5261bc | 1152 | if (params.size() > 1) { |
32437017 KL |
1153 | shift = csiIsShift(params.get(1)); |
1154 | alt = csiIsAlt(params.get(1)); | |
1155 | ctrl = csiIsCtrl(params.get(1)); | |
7b5261bc | 1156 | } |
b299e69c | 1157 | events.add(new TKeypressEvent(kbRight, alt, ctrl, shift)); |
7b5261bc KL |
1158 | reset(); |
1159 | return; | |
1160 | case 'D': | |
1161 | // Left | |
7b5261bc | 1162 | if (params.size() > 1) { |
32437017 KL |
1163 | shift = csiIsShift(params.get(1)); |
1164 | alt = csiIsAlt(params.get(1)); | |
1165 | ctrl = csiIsCtrl(params.get(1)); | |
7b5261bc | 1166 | } |
b299e69c | 1167 | events.add(new TKeypressEvent(kbLeft, alt, ctrl, shift)); |
7b5261bc KL |
1168 | reset(); |
1169 | return; | |
32437017 KL |
1170 | case 'H': |
1171 | // Home | |
1172 | if (params.size() > 1) { | |
1173 | shift = csiIsShift(params.get(1)); | |
1174 | alt = csiIsAlt(params.get(1)); | |
1175 | ctrl = csiIsCtrl(params.get(1)); | |
1176 | } | |
1177 | events.add(new TKeypressEvent(kbHome, alt, ctrl, shift)); | |
1178 | reset(); | |
1179 | return; | |
1180 | case 'F': | |
1181 | // End | |
1182 | if (params.size() > 1) { | |
1183 | shift = csiIsShift(params.get(1)); | |
1184 | alt = csiIsAlt(params.get(1)); | |
1185 | ctrl = csiIsCtrl(params.get(1)); | |
1186 | } | |
1187 | events.add(new TKeypressEvent(kbEnd, alt, ctrl, shift)); | |
1188 | reset(); | |
1189 | return; | |
7b5261bc KL |
1190 | default: |
1191 | break; | |
1192 | } | |
1193 | } | |
1194 | ||
1195 | // Unknown keystroke, ignore | |
1196 | reset(); | |
1197 | return; | |
1198 | ||
1199 | case MOUSE: | |
92554d64 | 1200 | params.set(0, params.get(params.size() - 1) + ch); |
7b5261bc KL |
1201 | if (params.get(0).length() == 3) { |
1202 | // We have enough to generate a mouse event | |
1203 | events.add(parseMouse()); | |
1204 | reset(); | |
1205 | } | |
1206 | return; | |
1207 | ||
1208 | default: | |
1209 | break; | |
1210 | } | |
1211 | ||
1212 | // This "should" be impossible to reach | |
1213 | return; | |
b1589621 KL |
1214 | } |
1215 | ||
1216 | /** | |
05dbb28d KL |
1217 | * Tell (u)xterm that we want alt- keystrokes to send escape + character |
1218 | * rather than set the 8th bit. Anyone who wants UTF8 should want this | |
1219 | * enabled. | |
b1589621 | 1220 | * |
05dbb28d KL |
1221 | * @param on if true, enable metaSendsEscape |
1222 | * @return the string to emit to xterm | |
b1589621 | 1223 | */ |
b5f2a6db | 1224 | private String xtermMetaSendsEscape(final boolean on) { |
7b5261bc KL |
1225 | if (on) { |
1226 | return "\033[?1036h\033[?1034l"; | |
1227 | } | |
1228 | return "\033[?1036l"; | |
b1589621 KL |
1229 | } |
1230 | ||
55d2b2c2 KL |
1231 | /** |
1232 | * Create an xterm OSC sequence to change the window title. Note package | |
1233 | * private access. | |
1234 | * | |
1235 | * @param title the new title | |
1236 | * @return the string to emit to xterm | |
1237 | */ | |
1238 | String setTitle(final String title) { | |
1239 | return "\033]2;" + title + "\007"; | |
1240 | } | |
1241 | ||
b1589621 | 1242 | /** |
b5f2a6db KL |
1243 | * Create a SGR parameter sequence for a single color change. Note |
1244 | * package private access. | |
b1589621 | 1245 | * |
05dbb28d KL |
1246 | * @param color one of the Color.WHITE, Color.BLUE, etc. constants |
1247 | * @param foreground if true, this is a foreground color | |
1248 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
1249 | * e.g. "\033[42m" | |
b1589621 | 1250 | */ |
b5f2a6db | 1251 | String color(final Color color, final boolean foreground) { |
7b5261bc | 1252 | return color(color, foreground, true); |
b1589621 KL |
1253 | } |
1254 | ||
1255 | /** | |
1256 | * Create a SGR parameter sequence for a single color change. | |
1257 | * | |
05dbb28d KL |
1258 | * @param color one of the Color.WHITE, Color.BLUE, etc. constants |
1259 | * @param foreground if true, this is a foreground color | |
1260 | * @param header if true, make the full header, otherwise just emit the | |
1261 | * color parameter e.g. "42;" | |
1262 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
1263 | * e.g. "\033[42m" | |
b1589621 | 1264 | */ |
b5f2a6db | 1265 | private String color(final Color color, final boolean foreground, |
7b5261bc KL |
1266 | final boolean header) { |
1267 | ||
1268 | int ecmaColor = color.getValue(); | |
1269 | ||
1270 | // Convert Color.* values to SGR numerics | |
1271 | if (foreground) { | |
1272 | ecmaColor += 30; | |
1273 | } else { | |
1274 | ecmaColor += 40; | |
1275 | } | |
1276 | ||
1277 | if (header) { | |
1278 | return String.format("\033[%dm", ecmaColor); | |
1279 | } else { | |
1280 | return String.format("%d;", ecmaColor); | |
1281 | } | |
b1589621 KL |
1282 | } |
1283 | ||
1284 | /** | |
b5f2a6db KL |
1285 | * Create a SGR parameter sequence for both foreground and background |
1286 | * color change. Note package private access. | |
b1589621 | 1287 | * |
05dbb28d KL |
1288 | * @param foreColor one of the Color.WHITE, Color.BLUE, etc. constants |
1289 | * @param backColor one of the Color.WHITE, Color.BLUE, etc. constants | |
1290 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
1291 | * e.g. "\033[31;42m" | |
b1589621 | 1292 | */ |
b5f2a6db | 1293 | String color(final Color foreColor, final Color backColor) { |
7b5261bc | 1294 | return color(foreColor, backColor, true); |
b1589621 KL |
1295 | } |
1296 | ||
1297 | /** | |
1298 | * Create a SGR parameter sequence for both foreground and | |
1299 | * background color change. | |
1300 | * | |
05dbb28d KL |
1301 | * @param foreColor one of the Color.WHITE, Color.BLUE, etc. constants |
1302 | * @param backColor one of the Color.WHITE, Color.BLUE, etc. constants | |
1303 | * @param header if true, make the full header, otherwise just emit the | |
1304 | * color parameter e.g. "31;42;" | |
1305 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
1306 | * e.g. "\033[31;42m" | |
b1589621 | 1307 | */ |
b5f2a6db | 1308 | private String color(final Color foreColor, final Color backColor, |
7b5261bc | 1309 | final boolean header) { |
b1589621 | 1310 | |
7b5261bc KL |
1311 | int ecmaForeColor = foreColor.getValue(); |
1312 | int ecmaBackColor = backColor.getValue(); | |
b1589621 | 1313 | |
7b5261bc KL |
1314 | // Convert Color.* values to SGR numerics |
1315 | ecmaBackColor += 40; | |
1316 | ecmaForeColor += 30; | |
b1589621 | 1317 | |
7b5261bc KL |
1318 | if (header) { |
1319 | return String.format("\033[%d;%dm", ecmaForeColor, ecmaBackColor); | |
1320 | } else { | |
1321 | return String.format("%d;%d;", ecmaForeColor, ecmaBackColor); | |
1322 | } | |
b1589621 KL |
1323 | } |
1324 | ||
1325 | /** | |
1326 | * Create a SGR parameter sequence for foreground, background, and | |
05dbb28d | 1327 | * several attributes. This sequence first resets all attributes to |
b5f2a6db KL |
1328 | * default, then sets attributes as per the parameters. Note package |
1329 | * private access. | |
b1589621 | 1330 | * |
05dbb28d KL |
1331 | * @param foreColor one of the Color.WHITE, Color.BLUE, etc. constants |
1332 | * @param backColor one of the Color.WHITE, Color.BLUE, etc. constants | |
1333 | * @param bold if true, set bold | |
1334 | * @param reverse if true, set reverse | |
1335 | * @param blink if true, set blink | |
1336 | * @param underline if true, set underline | |
1337 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
1338 | * e.g. "\033[0;1;31;42m" | |
b1589621 | 1339 | */ |
b5f2a6db | 1340 | String color(final Color foreColor, final Color backColor, |
7b5261bc KL |
1341 | final boolean bold, final boolean reverse, final boolean blink, |
1342 | final boolean underline) { | |
1343 | ||
1344 | int ecmaForeColor = foreColor.getValue(); | |
1345 | int ecmaBackColor = backColor.getValue(); | |
1346 | ||
1347 | // Convert Color.* values to SGR numerics | |
1348 | ecmaBackColor += 40; | |
1349 | ecmaForeColor += 30; | |
1350 | ||
1351 | StringBuilder sb = new StringBuilder(); | |
1352 | if ( bold && reverse && blink && !underline ) { | |
1353 | sb.append("\033[0;1;7;5;"); | |
1354 | } else if ( bold && reverse && !blink && !underline ) { | |
1355 | sb.append("\033[0;1;7;"); | |
1356 | } else if ( !bold && reverse && blink && !underline ) { | |
1357 | sb.append("\033[0;7;5;"); | |
1358 | } else if ( bold && !reverse && blink && !underline ) { | |
1359 | sb.append("\033[0;1;5;"); | |
1360 | } else if ( bold && !reverse && !blink && !underline ) { | |
1361 | sb.append("\033[0;1;"); | |
1362 | } else if ( !bold && reverse && !blink && !underline ) { | |
1363 | sb.append("\033[0;7;"); | |
1364 | } else if ( !bold && !reverse && blink && !underline) { | |
1365 | sb.append("\033[0;5;"); | |
1366 | } else if ( bold && reverse && blink && underline ) { | |
1367 | sb.append("\033[0;1;7;5;4;"); | |
1368 | } else if ( bold && reverse && !blink && underline ) { | |
1369 | sb.append("\033[0;1;7;4;"); | |
1370 | } else if ( !bold && reverse && blink && underline ) { | |
1371 | sb.append("\033[0;7;5;4;"); | |
1372 | } else if ( bold && !reverse && blink && underline ) { | |
1373 | sb.append("\033[0;1;5;4;"); | |
1374 | } else if ( bold && !reverse && !blink && underline ) { | |
1375 | sb.append("\033[0;1;4;"); | |
1376 | } else if ( !bold && reverse && !blink && underline ) { | |
1377 | sb.append("\033[0;7;4;"); | |
1378 | } else if ( !bold && !reverse && blink && underline) { | |
1379 | sb.append("\033[0;5;4;"); | |
1380 | } else if ( !bold && !reverse && !blink && underline) { | |
1381 | sb.append("\033[0;4;"); | |
1382 | } else { | |
1383 | assert (!bold && !reverse && !blink && !underline); | |
1384 | sb.append("\033[0;"); | |
1385 | } | |
1386 | sb.append(String.format("%d;%dm", ecmaForeColor, ecmaBackColor)); | |
1387 | return sb.toString(); | |
b1589621 KL |
1388 | } |
1389 | ||
b1589621 | 1390 | /** |
b5f2a6db KL |
1391 | * Create a SGR parameter sequence to reset to defaults. Note package |
1392 | * private access. | |
b1589621 | 1393 | * |
05dbb28d KL |
1394 | * @return the string to emit to an ANSI / ECMA-style terminal, |
1395 | * e.g. "\033[0m" | |
b1589621 | 1396 | */ |
b5f2a6db | 1397 | String normal() { |
7b5261bc | 1398 | return normal(true); |
b1589621 KL |
1399 | } |
1400 | ||
1401 | /** | |
1402 | * Create a SGR parameter sequence to reset to defaults. | |
1403 | * | |
05dbb28d KL |
1404 | * @param header if true, make the full header, otherwise just emit the |
1405 | * bare parameter e.g. "0;" | |
1406 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
1407 | * e.g. "\033[0m" | |
b1589621 | 1408 | */ |
b5f2a6db | 1409 | private String normal(final boolean header) { |
7b5261bc KL |
1410 | if (header) { |
1411 | return "\033[0;37;40m"; | |
1412 | } | |
1413 | return "0;37;40"; | |
b1589621 KL |
1414 | } |
1415 | ||
b1589621 | 1416 | /** |
b5f2a6db KL |
1417 | * Create a SGR parameter sequence for enabling the visible cursor. Note |
1418 | * package private access. | |
b1589621 | 1419 | * |
05dbb28d KL |
1420 | * @param on if true, turn on cursor |
1421 | * @return the string to emit to an ANSI / ECMA-style terminal | |
b1589621 | 1422 | */ |
b5f2a6db | 1423 | String cursor(final boolean on) { |
7b5261bc KL |
1424 | if (on && !cursorOn) { |
1425 | cursorOn = true; | |
1426 | return "\033[?25h"; | |
1427 | } | |
1428 | if (!on && cursorOn) { | |
1429 | cursorOn = false; | |
1430 | return "\033[?25l"; | |
1431 | } | |
1432 | return ""; | |
b1589621 KL |
1433 | } |
1434 | ||
1435 | /** | |
1436 | * Clear the entire screen. Because some terminals use back-color-erase, | |
1437 | * set the color to white-on-black beforehand. | |
1438 | * | |
05dbb28d | 1439 | * @return the string to emit to an ANSI / ECMA-style terminal |
b1589621 | 1440 | */ |
7b5261bc KL |
1441 | public String clearAll() { |
1442 | return "\033[0;37;40m\033[2J"; | |
b1589621 KL |
1443 | } |
1444 | ||
1445 | /** | |
1446 | * Clear the line from the cursor (inclusive) to the end of the screen. | |
1447 | * Because some terminals use back-color-erase, set the color to | |
b5f2a6db | 1448 | * white-on-black beforehand. Note package private access. |
b1589621 | 1449 | * |
05dbb28d | 1450 | * @return the string to emit to an ANSI / ECMA-style terminal |
b1589621 | 1451 | */ |
b5f2a6db | 1452 | String clearRemainingLine() { |
7b5261bc | 1453 | return "\033[0;37;40m\033[K"; |
b1589621 KL |
1454 | } |
1455 | ||
b1589621 | 1456 | /** |
b5f2a6db | 1457 | * Move the cursor to (x, y). Note package private access. |
b1589621 | 1458 | * |
05dbb28d KL |
1459 | * @param x column coordinate. 0 is the left-most column. |
1460 | * @param y row coordinate. 0 is the top-most row. | |
1461 | * @return the string to emit to an ANSI / ECMA-style terminal | |
b1589621 | 1462 | */ |
b5f2a6db | 1463 | String gotoXY(final int x, final int y) { |
7b5261bc | 1464 | return String.format("\033[%d;%dH", y + 1, x + 1); |
b1589621 KL |
1465 | } |
1466 | ||
1467 | /** | |
05dbb28d | 1468 | * Tell (u)xterm that we want to receive mouse events based on "Any event |
b5f2a6db KL |
1469 | * tracking", UTF-8 coordinates, and then SGR coordinates. Ideally we |
1470 | * will end up with SGR coordinates with UTF-8 coordinates as a fallback. | |
1471 | * See | |
b1589621 KL |
1472 | * http://invisible-island.net/xterm/ctlseqs/ctlseqs.html#Mouse%20Tracking |
1473 | * | |
05dbb28d | 1474 | * Note that this also sets the alternate/primary screen buffer. |
b1589621 | 1475 | * |
05dbb28d KL |
1476 | * @param on If true, enable mouse report and use the alternate screen |
1477 | * buffer. If false disable mouse reporting and use the primary screen | |
1478 | * buffer. | |
1479 | * @return the string to emit to xterm | |
b1589621 | 1480 | */ |
b5f2a6db | 1481 | private String mouse(final boolean on) { |
7b5261bc | 1482 | if (on) { |
32437017 | 1483 | return "\033[?1002;1003;1005;1006h\033[?1049h"; |
7b5261bc | 1484 | } |
32437017 | 1485 | return "\033[?1002;1003;1006;1005l\033[?1049l"; |
b1589621 KL |
1486 | } |
1487 | ||
4328bb42 KL |
1488 | /** |
1489 | * Read function runs on a separate thread. | |
1490 | */ | |
1491 | public void run() { | |
7b5261bc KL |
1492 | boolean done = false; |
1493 | // available() will often return > 1, so we need to read in chunks to | |
1494 | // stay caught up. | |
1495 | char [] readBuffer = new char[128]; | |
1496 | List<TInputEvent> events = new LinkedList<TInputEvent>(); | |
1497 | ||
1498 | while (!done && !stopReaderThread) { | |
1499 | try { | |
1500 | // We assume that if inputStream has bytes available, then | |
1501 | // input won't block on read(). | |
1502 | int n = inputStream.available(); | |
1503 | if (n > 0) { | |
1504 | if (readBuffer.length < n) { | |
1505 | // The buffer wasn't big enough, make it huger | |
1506 | readBuffer = new char[readBuffer.length * 2]; | |
1507 | } | |
1508 | ||
bb35d919 | 1509 | int rc = input.read(readBuffer, 0, readBuffer.length); |
7b5261bc KL |
1510 | // System.err.printf("read() %d", rc); System.err.flush(); |
1511 | if (rc == -1) { | |
1512 | // This is EOF | |
1513 | done = true; | |
1514 | } else { | |
1515 | for (int i = 0; i < rc; i++) { | |
1516 | int ch = readBuffer[i]; | |
1517 | processChar(events, (char)ch); | |
9b1afdde KL |
1518 | } |
1519 | getIdleEvents(events); | |
1520 | if (events.size() > 0) { | |
1521 | // Add to the queue for the backend thread to | |
1522 | // be able to obtain. | |
1523 | synchronized (eventQueue) { | |
1524 | eventQueue.addAll(events); | |
1525 | } | |
1526 | synchronized (listener) { | |
1527 | listener.notifyAll(); | |
7b5261bc | 1528 | } |
9b1afdde | 1529 | events.clear(); |
7b5261bc KL |
1530 | } |
1531 | } | |
1532 | } else { | |
a83fea2b KL |
1533 | getIdleEvents(events); |
1534 | if (events.size() > 0) { | |
1535 | synchronized (eventQueue) { | |
1536 | eventQueue.addAll(events); | |
1537 | } | |
1538 | events.clear(); | |
92554d64 KL |
1539 | synchronized (listener) { |
1540 | listener.notifyAll(); | |
1541 | } | |
a83fea2b KL |
1542 | } |
1543 | ||
8dc20d38 KL |
1544 | // Wait 10 millis for more data |
1545 | Thread.sleep(10); | |
7b5261bc KL |
1546 | } |
1547 | // System.err.println("end while loop"); System.err.flush(); | |
1548 | } catch (InterruptedException e) { | |
1549 | // SQUASH | |
1550 | } catch (IOException e) { | |
1551 | e.printStackTrace(); | |
1552 | done = true; | |
1553 | } | |
1554 | } // while ((done == false) && (stopReaderThread == false)) | |
1555 | // System.err.println("*** run() exiting..."); System.err.flush(); | |
4328bb42 KL |
1556 | } |
1557 | ||
b1589621 | 1558 | } |