Commit | Line | Data |
---|---|---|
b1589621 KL |
1 | /** |
2 | * Jexer - Java Text User Interface | |
3 | * | |
b1589621 KL |
4 | * License: LGPLv3 or later |
5 | * | |
7b5261bc KL |
6 | * This module is licensed under the GNU Lesser General Public License |
7 | * Version 3. Please see the file "COPYING" in this directory for more | |
8 | * information about the GNU Lesser General Public License Version 3. | |
b1589621 KL |
9 | * |
10 | * Copyright (C) 2015 Kevin Lamonte | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or | |
13 | * modify it under the terms of the GNU Lesser General Public License | |
14 | * as published by the Free Software Foundation; either version 3 of | |
15 | * the License, or (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, but | |
18 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
20 | * General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU Lesser General Public | |
23 | * License along with this program; if not, see | |
24 | * http://www.gnu.org/licenses/, or write to the Free Software | |
25 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
26 | * 02110-1301 USA | |
7b5261bc KL |
27 | * |
28 | * @author Kevin Lamonte [kevin.lamonte@gmail.com] | |
29 | * @version 1 | |
b1589621 KL |
30 | */ |
31 | package jexer.io; | |
32 | ||
33 | import java.io.BufferedReader; | |
4328bb42 KL |
34 | import java.io.FileDescriptor; |
35 | import java.io.FileInputStream; | |
b1589621 KL |
36 | import java.io.InputStream; |
37 | import java.io.InputStreamReader; | |
38 | import java.io.IOException; | |
39 | import java.io.OutputStream; | |
40 | import java.io.OutputStreamWriter; | |
41 | import java.io.PrintWriter; | |
42 | import java.io.Reader; | |
43 | import java.io.UnsupportedEncodingException; | |
44 | import java.util.ArrayList; | |
45 | import java.util.Date; | |
46 | import java.util.List; | |
47 | import java.util.LinkedList; | |
48 | ||
49 | import jexer.TKeypress; | |
50 | import jexer.bits.Color; | |
51 | import jexer.event.TInputEvent; | |
52 | import jexer.event.TKeypressEvent; | |
53 | import jexer.event.TMouseEvent; | |
54 | import jexer.event.TResizeEvent; | |
55 | import jexer.session.SessionInfo; | |
56 | import jexer.session.TSessionInfo; | |
57 | import jexer.session.TTYSessionInfo; | |
58 | import static jexer.TKeypress.*; | |
59 | ||
60 | /** | |
7b5261bc KL |
61 | * This class reads keystrokes and mouse events and emits output to ANSI |
62 | * X3.64 / ECMA-48 type terminals e.g. xterm, linux, vt100, ansi.sys, etc. | |
b1589621 | 63 | */ |
2b9c27db | 64 | public final class ECMA48Terminal implements Runnable { |
b1589621 KL |
65 | |
66 | /** | |
7b5261bc KL |
67 | * The session information. |
68 | */ | |
69 | private SessionInfo sessionInfo; | |
70 | ||
71 | /** | |
72 | * Getter for sessionInfo. | |
73 | * | |
74 | * @return the SessionInfo | |
b1589621 | 75 | */ |
2b9c27db | 76 | public SessionInfo getSessionInfo() { |
7b5261bc KL |
77 | return sessionInfo; |
78 | } | |
b1589621 | 79 | |
4328bb42 | 80 | /** |
7b5261bc | 81 | * The event queue, filled up by a thread reading on input. |
4328bb42 KL |
82 | */ |
83 | private List<TInputEvent> eventQueue; | |
84 | ||
85 | /** | |
86 | * If true, we want the reader thread to exit gracefully. | |
87 | */ | |
88 | private boolean stopReaderThread; | |
89 | ||
90 | /** | |
7b5261bc | 91 | * The reader thread. |
4328bb42 KL |
92 | */ |
93 | private Thread readerThread; | |
94 | ||
b1589621 KL |
95 | /** |
96 | * Parameters being collected. E.g. if the string is \033[1;3m, then | |
97 | * params[0] will be 1 and params[1] will be 3. | |
98 | */ | |
99 | private ArrayList<String> params; | |
100 | ||
b1589621 | 101 | /** |
7b5261bc | 102 | * States in the input parser. |
b1589621 KL |
103 | */ |
104 | private enum ParseState { | |
7b5261bc KL |
105 | GROUND, |
106 | ESCAPE, | |
107 | ESCAPE_INTERMEDIATE, | |
108 | CSI_ENTRY, | |
109 | CSI_PARAM, | |
110 | // CSI_INTERMEDIATE, | |
111 | MOUSE | |
b1589621 KL |
112 | } |
113 | ||
114 | /** | |
7b5261bc | 115 | * Current parsing state. |
b1589621 KL |
116 | */ |
117 | private ParseState state; | |
118 | ||
119 | /** | |
7b5261bc KL |
120 | * The time we entered ESCAPE. If we get a bare escape without a code |
121 | * following it, this is used to return that bare escape. | |
b1589621 KL |
122 | */ |
123 | private long escapeTime; | |
124 | ||
a83fea2b KL |
125 | /** |
126 | * The time we last checked the window size. We try not to spawn stty | |
127 | * more than once per second. | |
128 | */ | |
129 | private long windowSizeTime; | |
130 | ||
b1589621 KL |
131 | /** |
132 | * true if mouse1 was down. Used to report mouse1 on the release event. | |
133 | */ | |
134 | private boolean mouse1; | |
135 | ||
136 | /** | |
137 | * true if mouse2 was down. Used to report mouse2 on the release event. | |
138 | */ | |
139 | private boolean mouse2; | |
140 | ||
141 | /** | |
142 | * true if mouse3 was down. Used to report mouse3 on the release event. | |
143 | */ | |
144 | private boolean mouse3; | |
145 | ||
146 | /** | |
147 | * Cache the cursor visibility value so we only emit the sequence when we | |
148 | * need to. | |
149 | */ | |
150 | private boolean cursorOn = true; | |
151 | ||
152 | /** | |
153 | * Cache the last window size to figure out if a TResizeEvent needs to be | |
154 | * generated. | |
155 | */ | |
156 | private TResizeEvent windowResize = null; | |
157 | ||
158 | /** | |
159 | * If true, then we changed System.in and need to change it back. | |
160 | */ | |
161 | private boolean setRawMode; | |
162 | ||
163 | /** | |
164 | * The terminal's input. If an InputStream is not specified in the | |
4328bb42 KL |
165 | * constructor, then this InputStreamReader will be bound to System.in |
166 | * with UTF-8 encoding. | |
b1589621 KL |
167 | */ |
168 | private Reader input; | |
169 | ||
4328bb42 KL |
170 | /** |
171 | * The terminal's raw InputStream. If an InputStream is not specified in | |
172 | * the constructor, then this InputReader will be bound to System.in. | |
173 | * This is used by run() to see if bytes are available() before calling | |
174 | * (Reader)input.read(). | |
175 | */ | |
176 | private InputStream inputStream; | |
177 | ||
b1589621 KL |
178 | /** |
179 | * The terminal's output. If an OutputStream is not specified in the | |
180 | * constructor, then this PrintWriter will be bound to System.out with | |
181 | * UTF-8 encoding. | |
182 | */ | |
183 | private PrintWriter output; | |
184 | ||
92554d64 KL |
185 | /** |
186 | * The listening object that run() wakes up on new input. | |
187 | */ | |
188 | private Object listener; | |
189 | ||
b1589621 KL |
190 | /** |
191 | * When true, the terminal is sending non-UTF8 bytes when reporting mouse | |
192 | * events. | |
193 | * | |
194 | * TODO: Add broken mouse detection back into the reader. | |
195 | */ | |
196 | private boolean brokenTerminalUTFMouse = false; | |
197 | ||
217c6107 KL |
198 | /** |
199 | * Get the output writer. | |
200 | * | |
201 | * @return the Writer | |
202 | */ | |
203 | public PrintWriter getOutput() { | |
7b5261bc | 204 | return output; |
217c6107 KL |
205 | } |
206 | ||
623a1bd1 KL |
207 | /** |
208 | * Check if there are events in the queue. | |
209 | * | |
210 | * @return if true, getEvents() has something to return to the backend | |
211 | */ | |
212 | public boolean hasEvents() { | |
7b5261bc KL |
213 | synchronized (eventQueue) { |
214 | return (eventQueue.size() > 0); | |
215 | } | |
623a1bd1 KL |
216 | } |
217 | ||
b1589621 | 218 | /** |
7b5261bc KL |
219 | * Call 'stty' to set cooked mode. |
220 | * | |
221 | * <p>Actually executes '/bin/sh -c stty sane cooked < /dev/tty' | |
b1589621 KL |
222 | */ |
223 | private void sttyCooked() { | |
7b5261bc | 224 | doStty(false); |
b1589621 KL |
225 | } |
226 | ||
227 | /** | |
7b5261bc KL |
228 | * Call 'stty' to set raw mode. |
229 | * | |
230 | * <p>Actually executes '/bin/sh -c stty -ignbrk -brkint -parmrk -istrip | |
231 | * -inlcr -igncr -icrnl -ixon -opost -echo -echonl -icanon -isig -iexten | |
232 | * -parenb cs8 min 1 < /dev/tty' | |
b1589621 KL |
233 | */ |
234 | private void sttyRaw() { | |
7b5261bc | 235 | doStty(true); |
b1589621 KL |
236 | } |
237 | ||
238 | /** | |
239 | * Call 'stty' to set raw or cooked mode. | |
240 | * | |
241 | * @param mode if true, set raw mode, otherwise set cooked mode | |
242 | */ | |
7b5261bc KL |
243 | private void doStty(final boolean mode) { |
244 | String [] cmdRaw = { | |
245 | "/bin/sh", "-c", "stty -ignbrk -brkint -parmrk -istrip -inlcr -igncr -icrnl -ixon -opost -echo -echonl -icanon -isig -iexten -parenb cs8 min 1 < /dev/tty" | |
246 | }; | |
247 | String [] cmdCooked = { | |
248 | "/bin/sh", "-c", "stty sane cooked < /dev/tty" | |
249 | }; | |
250 | try { | |
251 | Process process; | |
2b9c27db | 252 | if (mode) { |
7b5261bc KL |
253 | process = Runtime.getRuntime().exec(cmdRaw); |
254 | } else { | |
255 | process = Runtime.getRuntime().exec(cmdCooked); | |
256 | } | |
257 | BufferedReader in = new BufferedReader(new InputStreamReader(process.getInputStream(), "UTF-8")); | |
258 | String line = in.readLine(); | |
259 | if ((line != null) && (line.length() > 0)) { | |
260 | System.err.println("WEIRD?! Normal output from stty: " + line); | |
261 | } | |
262 | while (true) { | |
263 | BufferedReader err = new BufferedReader(new InputStreamReader(process.getErrorStream(), "UTF-8")); | |
264 | line = err.readLine(); | |
265 | if ((line != null) && (line.length() > 0)) { | |
266 | System.err.println("Error output from stty: " + line); | |
267 | } | |
268 | try { | |
269 | process.waitFor(); | |
270 | break; | |
271 | } catch (InterruptedException e) { | |
272 | e.printStackTrace(); | |
273 | } | |
274 | } | |
275 | int rc = process.exitValue(); | |
276 | if (rc != 0) { | |
277 | System.err.println("stty returned error code: " + rc); | |
278 | } | |
279 | } catch (IOException e) { | |
280 | e.printStackTrace(); | |
281 | } | |
b1589621 KL |
282 | } |
283 | ||
284 | /** | |
7b5261bc | 285 | * Constructor sets up state for getEvent(). |
b1589621 | 286 | * |
92554d64 KL |
287 | * @param listener the object this backend needs to wake up when new |
288 | * input comes in | |
b1589621 KL |
289 | * @param input an InputStream connected to the remote user, or null for |
290 | * System.in. If System.in is used, then on non-Windows systems it will | |
291 | * be put in raw mode; shutdown() will (blindly!) put System.in in cooked | |
292 | * mode. input is always converted to a Reader with UTF-8 encoding. | |
293 | * @param output an OutputStream connected to the remote user, or null | |
294 | * for System.out. output is always converted to a Writer with UTF-8 | |
295 | * encoding. | |
7b5261bc KL |
296 | * @throws UnsupportedEncodingException if an exception is thrown when |
297 | * creating the InputStreamReader | |
b1589621 | 298 | */ |
92554d64 | 299 | public ECMA48Terminal(final Object listener, final InputStream input, |
7b5261bc KL |
300 | final OutputStream output) throws UnsupportedEncodingException { |
301 | ||
302 | reset(); | |
303 | mouse1 = false; | |
304 | mouse2 = false; | |
305 | mouse3 = false; | |
306 | stopReaderThread = false; | |
92554d64 | 307 | this.listener = listener; |
7b5261bc KL |
308 | |
309 | if (input == null) { | |
310 | // inputStream = System.in; | |
311 | inputStream = new FileInputStream(FileDescriptor.in); | |
312 | sttyRaw(); | |
313 | setRawMode = true; | |
314 | } else { | |
315 | inputStream = input; | |
316 | } | |
317 | this.input = new InputStreamReader(inputStream, "UTF-8"); | |
318 | ||
319 | // TODO: include TelnetSocket from NIB and have it implement | |
320 | // SessionInfo | |
321 | if (input instanceof SessionInfo) { | |
322 | sessionInfo = (SessionInfo) input; | |
323 | } | |
324 | if (sessionInfo == null) { | |
325 | if (input == null) { | |
326 | // Reading right off the tty | |
327 | sessionInfo = new TTYSessionInfo(); | |
328 | } else { | |
329 | sessionInfo = new TSessionInfo(); | |
330 | } | |
331 | } | |
332 | ||
333 | if (output == null) { | |
334 | this.output = new PrintWriter(new OutputStreamWriter(System.out, | |
335 | "UTF-8")); | |
336 | } else { | |
337 | this.output = new PrintWriter(new OutputStreamWriter(output, | |
338 | "UTF-8")); | |
339 | } | |
340 | ||
341 | // Enable mouse reporting and metaSendsEscape | |
342 | this.output.printf("%s%s", mouse(true), xtermMetaSendsEscape(true)); | |
343 | ||
344 | // Hang onto the window size | |
345 | windowResize = new TResizeEvent(TResizeEvent.Type.SCREEN, | |
346 | sessionInfo.getWindowWidth(), sessionInfo.getWindowHeight()); | |
347 | ||
348 | // Spin up the input reader | |
349 | eventQueue = new LinkedList<TInputEvent>(); | |
350 | readerThread = new Thread(this); | |
351 | readerThread.start(); | |
b1589621 KL |
352 | } |
353 | ||
354 | /** | |
7b5261bc | 355 | * Restore terminal to normal state. |
b1589621 KL |
356 | */ |
357 | public void shutdown() { | |
4328bb42 | 358 | |
7b5261bc KL |
359 | // System.err.println("=== shutdown() ==="); System.err.flush(); |
360 | ||
361 | // Tell the reader thread to stop looking at input | |
362 | stopReaderThread = true; | |
363 | try { | |
364 | readerThread.join(); | |
365 | } catch (InterruptedException e) { | |
366 | e.printStackTrace(); | |
367 | } | |
368 | ||
369 | // Disable mouse reporting and show cursor | |
370 | output.printf("%s%s%s", mouse(false), cursor(true), normal()); | |
371 | output.flush(); | |
372 | ||
373 | if (setRawMode) { | |
374 | sttyCooked(); | |
375 | setRawMode = false; | |
376 | // We don't close System.in/out | |
377 | } else { | |
378 | // Shut down the streams, this should wake up the reader thread | |
379 | // and make it exit. | |
380 | try { | |
381 | if (input != null) { | |
382 | input.close(); | |
383 | input = null; | |
384 | } | |
385 | if (output != null) { | |
386 | output.close(); | |
387 | output = null; | |
388 | } | |
389 | } catch (IOException e) { | |
390 | e.printStackTrace(); | |
391 | } | |
392 | } | |
b1589621 KL |
393 | } |
394 | ||
395 | /** | |
7b5261bc | 396 | * Flush output. |
b1589621 KL |
397 | */ |
398 | public void flush() { | |
7b5261bc | 399 | output.flush(); |
b1589621 KL |
400 | } |
401 | ||
402 | /** | |
7b5261bc | 403 | * Reset keyboard/mouse input parser. |
b1589621 KL |
404 | */ |
405 | private void reset() { | |
7b5261bc KL |
406 | state = ParseState.GROUND; |
407 | params = new ArrayList<String>(); | |
7b5261bc KL |
408 | params.clear(); |
409 | params.add(""); | |
b1589621 KL |
410 | } |
411 | ||
412 | /** | |
413 | * Produce a control character or one of the special ones (ENTER, TAB, | |
7b5261bc | 414 | * etc.). |
b1589621 KL |
415 | * |
416 | * @param ch Unicode code point | |
b299e69c | 417 | * @param alt if true, set alt on the TKeypress |
7b5261bc | 418 | * @return one TKeypress event, either a control character (e.g. isKey == |
b1589621 KL |
419 | * false, ch == 'A', ctrl == true), or a special key (e.g. isKey == true, |
420 | * fnKey == ESC) | |
421 | */ | |
b299e69c | 422 | private TKeypressEvent controlChar(final char ch, final boolean alt) { |
7b5261bc KL |
423 | // System.err.printf("controlChar: %02x\n", ch); |
424 | ||
425 | switch (ch) { | |
426 | case 0x0D: | |
427 | // Carriage return --> ENTER | |
b299e69c | 428 | return new TKeypressEvent(kbEnter, alt, false, false); |
7b5261bc KL |
429 | case 0x0A: |
430 | // Linefeed --> ENTER | |
b299e69c | 431 | return new TKeypressEvent(kbEnter, alt, false, false); |
7b5261bc KL |
432 | case 0x1B: |
433 | // ESC | |
b299e69c | 434 | return new TKeypressEvent(kbEsc, alt, false, false); |
7b5261bc KL |
435 | case '\t': |
436 | // TAB | |
b299e69c | 437 | return new TKeypressEvent(kbTab, alt, false, false); |
7b5261bc KL |
438 | default: |
439 | // Make all other control characters come back as the alphabetic | |
440 | // character with the ctrl field set. So SOH would be 'A' + | |
441 | // ctrl. | |
b299e69c KL |
442 | return new TKeypressEvent(false, 0, (char)(ch + 0x40), |
443 | alt, true, false); | |
7b5261bc | 444 | } |
b1589621 KL |
445 | } |
446 | ||
447 | /** | |
448 | * Produce special key from CSI Pn ; Pm ; ... ~ | |
449 | * | |
450 | * @return one KEYPRESS event representing a special key | |
451 | */ | |
452 | private TInputEvent csiFnKey() { | |
7b5261bc KL |
453 | int key = 0; |
454 | int modifier = 0; | |
455 | if (params.size() > 0) { | |
456 | key = Integer.parseInt(params.get(0)); | |
457 | } | |
458 | if (params.size() > 1) { | |
459 | modifier = Integer.parseInt(params.get(1)); | |
460 | } | |
b299e69c KL |
461 | boolean alt = false; |
462 | boolean ctrl = false; | |
463 | boolean shift = false; | |
7b5261bc KL |
464 | |
465 | switch (modifier) { | |
466 | case 0: | |
467 | // No modifier | |
7b5261bc KL |
468 | break; |
469 | case 2: | |
470 | // Shift | |
b299e69c | 471 | shift = true; |
7b5261bc | 472 | break; |
7b5261bc KL |
473 | case 3: |
474 | // Alt | |
b299e69c | 475 | alt = true; |
7b5261bc | 476 | break; |
7b5261bc KL |
477 | case 5: |
478 | // Ctrl | |
b299e69c | 479 | ctrl = true; |
7b5261bc | 480 | break; |
b299e69c KL |
481 | default: |
482 | // Unknown modifier, bail out | |
483 | return null; | |
484 | } | |
d4a29741 | 485 | |
b299e69c KL |
486 | switch (key) { |
487 | case 1: | |
488 | return new TKeypressEvent(kbHome, alt, ctrl, shift); | |
489 | case 2: | |
490 | return new TKeypressEvent(kbIns, alt, ctrl, shift); | |
491 | case 3: | |
492 | return new TKeypressEvent(kbDel, alt, ctrl, shift); | |
493 | case 4: | |
494 | return new TKeypressEvent(kbEnd, alt, ctrl, shift); | |
495 | case 5: | |
496 | return new TKeypressEvent(kbPgUp, alt, ctrl, shift); | |
497 | case 6: | |
498 | return new TKeypressEvent(kbPgDn, alt, ctrl, shift); | |
499 | case 15: | |
500 | return new TKeypressEvent(kbF5, alt, ctrl, shift); | |
501 | case 17: | |
502 | return new TKeypressEvent(kbF6, alt, ctrl, shift); | |
503 | case 18: | |
504 | return new TKeypressEvent(kbF7, alt, ctrl, shift); | |
505 | case 19: | |
506 | return new TKeypressEvent(kbF8, alt, ctrl, shift); | |
507 | case 20: | |
508 | return new TKeypressEvent(kbF9, alt, ctrl, shift); | |
509 | case 21: | |
510 | return new TKeypressEvent(kbF10, alt, ctrl, shift); | |
511 | case 23: | |
512 | return new TKeypressEvent(kbF11, alt, ctrl, shift); | |
513 | case 24: | |
514 | return new TKeypressEvent(kbF12, alt, ctrl, shift); | |
7b5261bc KL |
515 | default: |
516 | // Unknown | |
517 | return null; | |
518 | } | |
b1589621 KL |
519 | } |
520 | ||
521 | /** | |
522 | * Produce mouse events based on "Any event tracking" and UTF-8 | |
523 | * coordinates. See | |
524 | * http://invisible-island.net/xterm/ctlseqs/ctlseqs.html#Mouse%20Tracking | |
525 | * | |
526 | * @return a MOUSE_MOTION, MOUSE_UP, or MOUSE_DOWN event | |
527 | */ | |
528 | private TInputEvent parseMouse() { | |
7b5261bc KL |
529 | int buttons = params.get(0).charAt(0) - 32; |
530 | int x = params.get(0).charAt(1) - 32 - 1; | |
531 | int y = params.get(0).charAt(2) - 32 - 1; | |
532 | ||
533 | // Clamp X and Y to the physical screen coordinates. | |
534 | if (x >= windowResize.getWidth()) { | |
535 | x = windowResize.getWidth() - 1; | |
536 | } | |
537 | if (y >= windowResize.getHeight()) { | |
538 | y = windowResize.getHeight() - 1; | |
539 | } | |
540 | ||
d4a29741 KL |
541 | TMouseEvent.Type eventType = TMouseEvent.Type.MOUSE_DOWN; |
542 | boolean eventMouse1 = false; | |
543 | boolean eventMouse2 = false; | |
544 | boolean eventMouse3 = false; | |
545 | boolean eventMouseWheelUp = false; | |
546 | boolean eventMouseWheelDown = false; | |
7b5261bc KL |
547 | |
548 | // System.err.printf("buttons: %04x\r\n", buttons); | |
549 | ||
550 | switch (buttons) { | |
551 | case 0: | |
d4a29741 | 552 | eventMouse1 = true; |
7b5261bc KL |
553 | mouse1 = true; |
554 | break; | |
555 | case 1: | |
d4a29741 | 556 | eventMouse2 = true; |
7b5261bc KL |
557 | mouse2 = true; |
558 | break; | |
559 | case 2: | |
d4a29741 | 560 | eventMouse3 = true; |
7b5261bc KL |
561 | mouse3 = true; |
562 | break; | |
563 | case 3: | |
564 | // Release or Move | |
565 | if (!mouse1 && !mouse2 && !mouse3) { | |
d4a29741 | 566 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc | 567 | } else { |
d4a29741 | 568 | eventType = TMouseEvent.Type.MOUSE_UP; |
7b5261bc KL |
569 | } |
570 | if (mouse1) { | |
571 | mouse1 = false; | |
d4a29741 | 572 | eventMouse1 = true; |
7b5261bc KL |
573 | } |
574 | if (mouse2) { | |
575 | mouse2 = false; | |
d4a29741 | 576 | eventMouse2 = true; |
7b5261bc KL |
577 | } |
578 | if (mouse3) { | |
579 | mouse3 = false; | |
d4a29741 | 580 | eventMouse3 = true; |
7b5261bc KL |
581 | } |
582 | break; | |
583 | ||
584 | case 32: | |
585 | // Dragging with mouse1 down | |
d4a29741 | 586 | eventMouse1 = true; |
7b5261bc | 587 | mouse1 = true; |
d4a29741 | 588 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
589 | break; |
590 | ||
591 | case 33: | |
592 | // Dragging with mouse2 down | |
d4a29741 | 593 | eventMouse2 = true; |
7b5261bc | 594 | mouse2 = true; |
d4a29741 | 595 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
596 | break; |
597 | ||
598 | case 34: | |
599 | // Dragging with mouse3 down | |
d4a29741 | 600 | eventMouse3 = true; |
7b5261bc | 601 | mouse3 = true; |
d4a29741 | 602 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
603 | break; |
604 | ||
605 | case 96: | |
606 | // Dragging with mouse2 down after wheelUp | |
d4a29741 | 607 | eventMouse2 = true; |
7b5261bc | 608 | mouse2 = true; |
d4a29741 | 609 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
610 | break; |
611 | ||
612 | case 97: | |
613 | // Dragging with mouse2 down after wheelDown | |
d4a29741 | 614 | eventMouse2 = true; |
7b5261bc | 615 | mouse2 = true; |
d4a29741 | 616 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
617 | break; |
618 | ||
619 | case 64: | |
d4a29741 | 620 | eventMouseWheelUp = true; |
7b5261bc KL |
621 | break; |
622 | ||
623 | case 65: | |
d4a29741 | 624 | eventMouseWheelDown = true; |
7b5261bc KL |
625 | break; |
626 | ||
627 | default: | |
628 | // Unknown, just make it motion | |
d4a29741 | 629 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
630 | break; |
631 | } | |
d4a29741 KL |
632 | return new TMouseEvent(eventType, x, y, x, y, |
633 | eventMouse1, eventMouse2, eventMouse3, | |
634 | eventMouseWheelUp, eventMouseWheelDown); | |
b1589621 KL |
635 | } |
636 | ||
637 | /** | |
05dbb28d | 638 | * Return any events in the IO queue. |
b1589621 | 639 | * |
623a1bd1 | 640 | * @param queue list to append new events to |
05dbb28d | 641 | */ |
7b5261bc KL |
642 | public void getEvents(final List<TInputEvent> queue) { |
643 | synchronized (eventQueue) { | |
644 | if (eventQueue.size() > 0) { | |
8e688b92 KL |
645 | synchronized (queue) { |
646 | queue.addAll(eventQueue); | |
647 | } | |
7b5261bc KL |
648 | eventQueue.clear(); |
649 | } | |
650 | } | |
05dbb28d KL |
651 | } |
652 | ||
653 | /** | |
623a1bd1 | 654 | * Return any events in the IO queue due to timeout. |
b1589621 | 655 | * |
623a1bd1 | 656 | * @param queue list to append new events to |
b1589621 | 657 | */ |
a83fea2b KL |
658 | private void getIdleEvents(final List<TInputEvent> queue) { |
659 | Date now = new Date(); | |
7b5261bc KL |
660 | |
661 | // Check for new window size | |
a83fea2b KL |
662 | long windowSizeDelay = now.getTime() - windowSizeTime; |
663 | if (windowSizeDelay > 1000) { | |
664 | sessionInfo.queryWindowSize(); | |
665 | int newWidth = sessionInfo.getWindowWidth(); | |
666 | int newHeight = sessionInfo.getWindowHeight(); | |
667 | if ((newWidth != windowResize.getWidth()) | |
668 | || (newHeight != windowResize.getHeight()) | |
669 | ) { | |
670 | TResizeEvent event = new TResizeEvent(TResizeEvent.Type.SCREEN, | |
671 | newWidth, newHeight); | |
672 | windowResize = new TResizeEvent(TResizeEvent.Type.SCREEN, | |
673 | newWidth, newHeight); | |
674 | queue.add(event); | |
7b5261bc | 675 | } |
a83fea2b | 676 | windowSizeTime = now.getTime(); |
7b5261bc KL |
677 | } |
678 | ||
a83fea2b KL |
679 | // ESCDELAY type timeout |
680 | if (state == ParseState.ESCAPE) { | |
681 | long escDelay = now.getTime() - escapeTime; | |
682 | if (escDelay > 100) { | |
683 | // After 0.1 seconds, assume a true escape character | |
684 | queue.add(controlChar((char)0x1B, false)); | |
685 | reset(); | |
7b5261bc KL |
686 | } |
687 | } | |
b1589621 KL |
688 | } |
689 | ||
690 | /** | |
691 | * Parses the next character of input to see if an InputEvent is | |
692 | * fully here. | |
693 | * | |
623a1bd1 | 694 | * @param events list to append new events to |
05dbb28d | 695 | * @param ch Unicode code point |
b1589621 | 696 | */ |
7b5261bc KL |
697 | private void processChar(final List<TInputEvent> events, final char ch) { |
698 | ||
7b5261bc | 699 | // ESCDELAY type timeout |
b299e69c | 700 | Date now = new Date(); |
7b5261bc KL |
701 | if (state == ParseState.ESCAPE) { |
702 | long escDelay = now.getTime() - escapeTime; | |
703 | if (escDelay > 250) { | |
704 | // After 0.25 seconds, assume a true escape character | |
b299e69c | 705 | events.add(controlChar((char)0x1B, false)); |
7b5261bc KL |
706 | reset(); |
707 | } | |
708 | } | |
709 | ||
b299e69c KL |
710 | // TKeypress fields |
711 | boolean ctrl = false; | |
712 | boolean alt = false; | |
713 | boolean shift = false; | |
714 | char keyCh = ch; | |
715 | TKeypress key; | |
716 | ||
7b5261bc KL |
717 | // System.err.printf("state: %s ch %c\r\n", state, ch); |
718 | ||
719 | switch (state) { | |
720 | case GROUND: | |
721 | ||
722 | if (ch == 0x1B) { | |
723 | state = ParseState.ESCAPE; | |
724 | escapeTime = now.getTime(); | |
725 | return; | |
726 | } | |
727 | ||
728 | if (ch <= 0x1F) { | |
729 | // Control character | |
b299e69c | 730 | events.add(controlChar(ch, false)); |
7b5261bc KL |
731 | reset(); |
732 | return; | |
733 | } | |
734 | ||
735 | if (ch >= 0x20) { | |
736 | // Normal character | |
b299e69c KL |
737 | events.add(new TKeypressEvent(false, 0, ch, |
738 | false, false, false)); | |
7b5261bc KL |
739 | reset(); |
740 | return; | |
741 | } | |
742 | ||
743 | break; | |
744 | ||
745 | case ESCAPE: | |
746 | if (ch <= 0x1F) { | |
747 | // ALT-Control character | |
b299e69c | 748 | events.add(controlChar(ch, true)); |
7b5261bc KL |
749 | reset(); |
750 | return; | |
751 | } | |
752 | ||
753 | if (ch == 'O') { | |
754 | // This will be one of the function keys | |
755 | state = ParseState.ESCAPE_INTERMEDIATE; | |
756 | return; | |
757 | } | |
758 | ||
759 | // '[' goes to CSI_ENTRY | |
760 | if (ch == '[') { | |
761 | state = ParseState.CSI_ENTRY; | |
762 | return; | |
763 | } | |
764 | ||
765 | // Everything else is assumed to be Alt-keystroke | |
7b5261bc | 766 | if ((ch >= 'A') && (ch <= 'Z')) { |
b299e69c | 767 | shift = true; |
7b5261bc | 768 | } |
b299e69c KL |
769 | alt = true; |
770 | events.add(new TKeypressEvent(false, 0, ch, alt, ctrl, shift)); | |
7b5261bc KL |
771 | reset(); |
772 | return; | |
773 | ||
774 | case ESCAPE_INTERMEDIATE: | |
775 | if ((ch >= 'P') && (ch <= 'S')) { | |
776 | // Function key | |
7b5261bc KL |
777 | switch (ch) { |
778 | case 'P': | |
b299e69c | 779 | events.add(new TKeypressEvent(kbF1)); |
7b5261bc KL |
780 | break; |
781 | case 'Q': | |
b299e69c | 782 | events.add(new TKeypressEvent(kbF2)); |
7b5261bc KL |
783 | break; |
784 | case 'R': | |
b299e69c | 785 | events.add(new TKeypressEvent(kbF3)); |
7b5261bc KL |
786 | break; |
787 | case 'S': | |
b299e69c | 788 | events.add(new TKeypressEvent(kbF4)); |
7b5261bc KL |
789 | break; |
790 | default: | |
791 | break; | |
792 | } | |
7b5261bc KL |
793 | reset(); |
794 | return; | |
795 | } | |
796 | ||
797 | // Unknown keystroke, ignore | |
798 | reset(); | |
799 | return; | |
800 | ||
801 | case CSI_ENTRY: | |
802 | // Numbers - parameter values | |
803 | if ((ch >= '0') && (ch <= '9')) { | |
92554d64 KL |
804 | params.set(params.size() - 1, |
805 | params.get(params.size() - 1) + ch); | |
7b5261bc KL |
806 | state = ParseState.CSI_PARAM; |
807 | return; | |
808 | } | |
809 | // Parameter separator | |
810 | if (ch == ';') { | |
a83fea2b | 811 | params.add(""); |
7b5261bc KL |
812 | return; |
813 | } | |
814 | ||
815 | if ((ch >= 0x30) && (ch <= 0x7E)) { | |
816 | switch (ch) { | |
817 | case 'A': | |
818 | // Up | |
7b5261bc KL |
819 | if (params.size() > 1) { |
820 | if (params.get(1).equals("2")) { | |
b299e69c | 821 | shift = true; |
7b5261bc KL |
822 | } |
823 | if (params.get(1).equals("5")) { | |
b299e69c | 824 | ctrl = true; |
7b5261bc KL |
825 | } |
826 | if (params.get(1).equals("3")) { | |
b299e69c | 827 | alt = true; |
7b5261bc KL |
828 | } |
829 | } | |
b299e69c | 830 | events.add(new TKeypressEvent(kbUp, alt, ctrl, shift)); |
7b5261bc KL |
831 | reset(); |
832 | return; | |
833 | case 'B': | |
834 | // Down | |
7b5261bc KL |
835 | if (params.size() > 1) { |
836 | if (params.get(1).equals("2")) { | |
b299e69c | 837 | shift = true; |
7b5261bc KL |
838 | } |
839 | if (params.get(1).equals("5")) { | |
b299e69c | 840 | ctrl = true; |
7b5261bc KL |
841 | } |
842 | if (params.get(1).equals("3")) { | |
b299e69c | 843 | alt = true; |
7b5261bc KL |
844 | } |
845 | } | |
b299e69c | 846 | events.add(new TKeypressEvent(kbDown, alt, ctrl, shift)); |
7b5261bc KL |
847 | reset(); |
848 | return; | |
849 | case 'C': | |
850 | // Right | |
7b5261bc KL |
851 | if (params.size() > 1) { |
852 | if (params.get(1).equals("2")) { | |
b299e69c | 853 | shift = true; |
7b5261bc KL |
854 | } |
855 | if (params.get(1).equals("5")) { | |
b299e69c | 856 | ctrl = true; |
7b5261bc KL |
857 | } |
858 | if (params.get(1).equals("3")) { | |
b299e69c | 859 | alt = true; |
7b5261bc KL |
860 | } |
861 | } | |
b299e69c | 862 | events.add(new TKeypressEvent(kbRight, alt, ctrl, shift)); |
7b5261bc KL |
863 | reset(); |
864 | return; | |
865 | case 'D': | |
866 | // Left | |
7b5261bc KL |
867 | if (params.size() > 1) { |
868 | if (params.get(1).equals("2")) { | |
b299e69c | 869 | shift = true; |
7b5261bc KL |
870 | } |
871 | if (params.get(1).equals("5")) { | |
b299e69c | 872 | ctrl = true; |
7b5261bc KL |
873 | } |
874 | if (params.get(1).equals("3")) { | |
b299e69c | 875 | alt = true; |
7b5261bc KL |
876 | } |
877 | } | |
b299e69c | 878 | events.add(new TKeypressEvent(kbLeft, alt, ctrl, shift)); |
7b5261bc KL |
879 | reset(); |
880 | return; | |
881 | case 'H': | |
882 | // Home | |
b299e69c | 883 | events.add(new TKeypressEvent(kbHome)); |
7b5261bc KL |
884 | reset(); |
885 | return; | |
886 | case 'F': | |
887 | // End | |
b299e69c | 888 | events.add(new TKeypressEvent(kbEnd)); |
7b5261bc KL |
889 | reset(); |
890 | return; | |
891 | case 'Z': | |
892 | // CBT - Cursor backward X tab stops (default 1) | |
b299e69c | 893 | events.add(new TKeypressEvent(kbBackTab)); |
7b5261bc KL |
894 | reset(); |
895 | return; | |
896 | case 'M': | |
897 | // Mouse position | |
898 | state = ParseState.MOUSE; | |
899 | return; | |
900 | default: | |
901 | break; | |
902 | } | |
903 | } | |
904 | ||
905 | // Unknown keystroke, ignore | |
906 | reset(); | |
907 | return; | |
908 | ||
909 | case CSI_PARAM: | |
910 | // Numbers - parameter values | |
911 | if ((ch >= '0') && (ch <= '9')) { | |
92554d64 KL |
912 | params.set(params.size() - 1, |
913 | params.get(params.size() - 1) + ch); | |
7b5261bc KL |
914 | state = ParseState.CSI_PARAM; |
915 | return; | |
916 | } | |
917 | // Parameter separator | |
918 | if (ch == ';') { | |
92554d64 | 919 | params.add(""); |
7b5261bc KL |
920 | return; |
921 | } | |
922 | ||
923 | if (ch == '~') { | |
924 | events.add(csiFnKey()); | |
925 | reset(); | |
926 | return; | |
927 | } | |
928 | ||
929 | if ((ch >= 0x30) && (ch <= 0x7E)) { | |
930 | switch (ch) { | |
931 | case 'A': | |
932 | // Up | |
7b5261bc KL |
933 | if (params.size() > 1) { |
934 | if (params.get(1).equals("2")) { | |
b299e69c | 935 | shift = true; |
7b5261bc KL |
936 | } |
937 | if (params.get(1).equals("5")) { | |
b299e69c | 938 | ctrl = true; |
7b5261bc KL |
939 | } |
940 | if (params.get(1).equals("3")) { | |
b299e69c | 941 | alt = true; |
7b5261bc KL |
942 | } |
943 | } | |
b299e69c | 944 | events.add(new TKeypressEvent(kbUp, alt, ctrl, shift)); |
7b5261bc KL |
945 | reset(); |
946 | return; | |
947 | case 'B': | |
948 | // Down | |
7b5261bc KL |
949 | if (params.size() > 1) { |
950 | if (params.get(1).equals("2")) { | |
b299e69c | 951 | shift = true; |
7b5261bc KL |
952 | } |
953 | if (params.get(1).equals("5")) { | |
b299e69c | 954 | ctrl = true; |
7b5261bc KL |
955 | } |
956 | if (params.get(1).equals("3")) { | |
b299e69c | 957 | alt = true; |
7b5261bc KL |
958 | } |
959 | } | |
b299e69c | 960 | events.add(new TKeypressEvent(kbDown, alt, ctrl, shift)); |
7b5261bc KL |
961 | reset(); |
962 | return; | |
963 | case 'C': | |
964 | // Right | |
7b5261bc KL |
965 | if (params.size() > 1) { |
966 | if (params.get(1).equals("2")) { | |
b299e69c | 967 | shift = true; |
7b5261bc KL |
968 | } |
969 | if (params.get(1).equals("5")) { | |
b299e69c | 970 | ctrl = true; |
7b5261bc KL |
971 | } |
972 | if (params.get(1).equals("3")) { | |
b299e69c | 973 | alt = true; |
7b5261bc KL |
974 | } |
975 | } | |
b299e69c | 976 | events.add(new TKeypressEvent(kbRight, alt, ctrl, shift)); |
7b5261bc KL |
977 | reset(); |
978 | return; | |
979 | case 'D': | |
980 | // Left | |
7b5261bc KL |
981 | if (params.size() > 1) { |
982 | if (params.get(1).equals("2")) { | |
b299e69c | 983 | shift = true; |
7b5261bc KL |
984 | } |
985 | if (params.get(1).equals("5")) { | |
b299e69c | 986 | ctrl = true; |
7b5261bc KL |
987 | } |
988 | if (params.get(1).equals("3")) { | |
b299e69c | 989 | alt = true; |
7b5261bc KL |
990 | } |
991 | } | |
b299e69c | 992 | events.add(new TKeypressEvent(kbLeft, alt, ctrl, shift)); |
7b5261bc KL |
993 | reset(); |
994 | return; | |
995 | default: | |
996 | break; | |
997 | } | |
998 | } | |
999 | ||
1000 | // Unknown keystroke, ignore | |
1001 | reset(); | |
1002 | return; | |
1003 | ||
1004 | case MOUSE: | |
92554d64 | 1005 | params.set(0, params.get(params.size() - 1) + ch); |
7b5261bc KL |
1006 | if (params.get(0).length() == 3) { |
1007 | // We have enough to generate a mouse event | |
1008 | events.add(parseMouse()); | |
1009 | reset(); | |
1010 | } | |
1011 | return; | |
1012 | ||
1013 | default: | |
1014 | break; | |
1015 | } | |
1016 | ||
1017 | // This "should" be impossible to reach | |
1018 | return; | |
b1589621 KL |
1019 | } |
1020 | ||
1021 | /** | |
05dbb28d KL |
1022 | * Tell (u)xterm that we want alt- keystrokes to send escape + character |
1023 | * rather than set the 8th bit. Anyone who wants UTF8 should want this | |
1024 | * enabled. | |
b1589621 | 1025 | * |
05dbb28d KL |
1026 | * @param on if true, enable metaSendsEscape |
1027 | * @return the string to emit to xterm | |
b1589621 | 1028 | */ |
7b5261bc KL |
1029 | public String xtermMetaSendsEscape(final boolean on) { |
1030 | if (on) { | |
1031 | return "\033[?1036h\033[?1034l"; | |
1032 | } | |
1033 | return "\033[?1036l"; | |
b1589621 KL |
1034 | } |
1035 | ||
1036 | /** | |
05dbb28d KL |
1037 | * Convert a list of SGR parameters into a full escape sequence. This |
1038 | * also eliminates a trailing ';' which would otherwise reset everything | |
1039 | * to white-on-black not-bold. | |
b1589621 | 1040 | * |
05dbb28d KL |
1041 | * @param str string of parameters, e.g. "31;1;" |
1042 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
1043 | * e.g. "\033[31;1m" | |
b1589621 | 1044 | */ |
7b5261bc KL |
1045 | public String addHeaderSGR(String str) { |
1046 | if (str.length() > 0) { | |
1047 | // Nix any trailing ';' because that resets all attributes | |
1048 | while (str.endsWith(":")) { | |
1049 | str = str.substring(0, str.length() - 1); | |
1050 | } | |
1051 | } | |
1052 | return "\033[" + str + "m"; | |
b1589621 KL |
1053 | } |
1054 | ||
1055 | /** | |
1056 | * Create a SGR parameter sequence for a single color change. | |
1057 | * | |
05dbb28d KL |
1058 | * @param color one of the Color.WHITE, Color.BLUE, etc. constants |
1059 | * @param foreground if true, this is a foreground color | |
1060 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
1061 | * e.g. "\033[42m" | |
b1589621 | 1062 | */ |
7b5261bc KL |
1063 | public String color(final Color color, final boolean foreground) { |
1064 | return color(color, foreground, true); | |
b1589621 KL |
1065 | } |
1066 | ||
1067 | /** | |
1068 | * Create a SGR parameter sequence for a single color change. | |
1069 | * | |
05dbb28d KL |
1070 | * @param color one of the Color.WHITE, Color.BLUE, etc. constants |
1071 | * @param foreground if true, this is a foreground color | |
1072 | * @param header if true, make the full header, otherwise just emit the | |
1073 | * color parameter e.g. "42;" | |
1074 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
1075 | * e.g. "\033[42m" | |
b1589621 | 1076 | */ |
7b5261bc KL |
1077 | public String color(final Color color, final boolean foreground, |
1078 | final boolean header) { | |
1079 | ||
1080 | int ecmaColor = color.getValue(); | |
1081 | ||
1082 | // Convert Color.* values to SGR numerics | |
1083 | if (foreground) { | |
1084 | ecmaColor += 30; | |
1085 | } else { | |
1086 | ecmaColor += 40; | |
1087 | } | |
1088 | ||
1089 | if (header) { | |
1090 | return String.format("\033[%dm", ecmaColor); | |
1091 | } else { | |
1092 | return String.format("%d;", ecmaColor); | |
1093 | } | |
b1589621 KL |
1094 | } |
1095 | ||
1096 | /** | |
1097 | * Create a SGR parameter sequence for both foreground and | |
1098 | * background color change. | |
1099 | * | |
05dbb28d KL |
1100 | * @param foreColor one of the Color.WHITE, Color.BLUE, etc. constants |
1101 | * @param backColor one of the Color.WHITE, Color.BLUE, etc. constants | |
1102 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
1103 | * e.g. "\033[31;42m" | |
b1589621 | 1104 | */ |
7b5261bc KL |
1105 | public String color(final Color foreColor, final Color backColor) { |
1106 | return color(foreColor, backColor, true); | |
b1589621 KL |
1107 | } |
1108 | ||
1109 | /** | |
1110 | * Create a SGR parameter sequence for both foreground and | |
1111 | * background color change. | |
1112 | * | |
05dbb28d KL |
1113 | * @param foreColor one of the Color.WHITE, Color.BLUE, etc. constants |
1114 | * @param backColor one of the Color.WHITE, Color.BLUE, etc. constants | |
1115 | * @param header if true, make the full header, otherwise just emit the | |
1116 | * color parameter e.g. "31;42;" | |
1117 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
1118 | * e.g. "\033[31;42m" | |
b1589621 | 1119 | */ |
7b5261bc KL |
1120 | public String color(final Color foreColor, final Color backColor, |
1121 | final boolean header) { | |
b1589621 | 1122 | |
7b5261bc KL |
1123 | int ecmaForeColor = foreColor.getValue(); |
1124 | int ecmaBackColor = backColor.getValue(); | |
b1589621 | 1125 | |
7b5261bc KL |
1126 | // Convert Color.* values to SGR numerics |
1127 | ecmaBackColor += 40; | |
1128 | ecmaForeColor += 30; | |
b1589621 | 1129 | |
7b5261bc KL |
1130 | if (header) { |
1131 | return String.format("\033[%d;%dm", ecmaForeColor, ecmaBackColor); | |
1132 | } else { | |
1133 | return String.format("%d;%d;", ecmaForeColor, ecmaBackColor); | |
1134 | } | |
b1589621 KL |
1135 | } |
1136 | ||
1137 | /** | |
1138 | * Create a SGR parameter sequence for foreground, background, and | |
05dbb28d KL |
1139 | * several attributes. This sequence first resets all attributes to |
1140 | * default, then sets attributes as per the parameters. | |
b1589621 | 1141 | * |
05dbb28d KL |
1142 | * @param foreColor one of the Color.WHITE, Color.BLUE, etc. constants |
1143 | * @param backColor one of the Color.WHITE, Color.BLUE, etc. constants | |
1144 | * @param bold if true, set bold | |
1145 | * @param reverse if true, set reverse | |
1146 | * @param blink if true, set blink | |
1147 | * @param underline if true, set underline | |
1148 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
1149 | * e.g. "\033[0;1;31;42m" | |
b1589621 | 1150 | */ |
7b5261bc KL |
1151 | public String color(final Color foreColor, final Color backColor, |
1152 | final boolean bold, final boolean reverse, final boolean blink, | |
1153 | final boolean underline) { | |
1154 | ||
1155 | int ecmaForeColor = foreColor.getValue(); | |
1156 | int ecmaBackColor = backColor.getValue(); | |
1157 | ||
1158 | // Convert Color.* values to SGR numerics | |
1159 | ecmaBackColor += 40; | |
1160 | ecmaForeColor += 30; | |
1161 | ||
1162 | StringBuilder sb = new StringBuilder(); | |
1163 | if ( bold && reverse && blink && !underline ) { | |
1164 | sb.append("\033[0;1;7;5;"); | |
1165 | } else if ( bold && reverse && !blink && !underline ) { | |
1166 | sb.append("\033[0;1;7;"); | |
1167 | } else if ( !bold && reverse && blink && !underline ) { | |
1168 | sb.append("\033[0;7;5;"); | |
1169 | } else if ( bold && !reverse && blink && !underline ) { | |
1170 | sb.append("\033[0;1;5;"); | |
1171 | } else if ( bold && !reverse && !blink && !underline ) { | |
1172 | sb.append("\033[0;1;"); | |
1173 | } else if ( !bold && reverse && !blink && !underline ) { | |
1174 | sb.append("\033[0;7;"); | |
1175 | } else if ( !bold && !reverse && blink && !underline) { | |
1176 | sb.append("\033[0;5;"); | |
1177 | } else if ( bold && reverse && blink && underline ) { | |
1178 | sb.append("\033[0;1;7;5;4;"); | |
1179 | } else if ( bold && reverse && !blink && underline ) { | |
1180 | sb.append("\033[0;1;7;4;"); | |
1181 | } else if ( !bold && reverse && blink && underline ) { | |
1182 | sb.append("\033[0;7;5;4;"); | |
1183 | } else if ( bold && !reverse && blink && underline ) { | |
1184 | sb.append("\033[0;1;5;4;"); | |
1185 | } else if ( bold && !reverse && !blink && underline ) { | |
1186 | sb.append("\033[0;1;4;"); | |
1187 | } else if ( !bold && reverse && !blink && underline ) { | |
1188 | sb.append("\033[0;7;4;"); | |
1189 | } else if ( !bold && !reverse && blink && underline) { | |
1190 | sb.append("\033[0;5;4;"); | |
1191 | } else if ( !bold && !reverse && !blink && underline) { | |
1192 | sb.append("\033[0;4;"); | |
1193 | } else { | |
1194 | assert (!bold && !reverse && !blink && !underline); | |
1195 | sb.append("\033[0;"); | |
1196 | } | |
1197 | sb.append(String.format("%d;%dm", ecmaForeColor, ecmaBackColor)); | |
1198 | return sb.toString(); | |
b1589621 KL |
1199 | } |
1200 | ||
1201 | /** | |
1202 | * Create a SGR parameter sequence for enabling reverse color. | |
1203 | * | |
05dbb28d KL |
1204 | * @param on if true, turn on reverse |
1205 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
1206 | * e.g. "\033[7m" | |
b1589621 | 1207 | */ |
7b5261bc KL |
1208 | public String reverse(final boolean on) { |
1209 | if (on) { | |
1210 | return "\033[7m"; | |
1211 | } | |
1212 | return "\033[27m"; | |
b1589621 KL |
1213 | } |
1214 | ||
1215 | /** | |
1216 | * Create a SGR parameter sequence to reset to defaults. | |
1217 | * | |
05dbb28d KL |
1218 | * @return the string to emit to an ANSI / ECMA-style terminal, |
1219 | * e.g. "\033[0m" | |
b1589621 | 1220 | */ |
7b5261bc KL |
1221 | public String normal() { |
1222 | return normal(true); | |
b1589621 KL |
1223 | } |
1224 | ||
1225 | /** | |
1226 | * Create a SGR parameter sequence to reset to defaults. | |
1227 | * | |
05dbb28d KL |
1228 | * @param header if true, make the full header, otherwise just emit the |
1229 | * bare parameter e.g. "0;" | |
1230 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
1231 | * e.g. "\033[0m" | |
b1589621 | 1232 | */ |
7b5261bc KL |
1233 | public String normal(final boolean header) { |
1234 | if (header) { | |
1235 | return "\033[0;37;40m"; | |
1236 | } | |
1237 | return "0;37;40"; | |
b1589621 KL |
1238 | } |
1239 | ||
1240 | /** | |
1241 | * Create a SGR parameter sequence for enabling boldface. | |
1242 | * | |
05dbb28d KL |
1243 | * @param on if true, turn on bold |
1244 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
1245 | * e.g. "\033[1m" | |
b1589621 | 1246 | */ |
7b5261bc KL |
1247 | public String bold(final boolean on) { |
1248 | return bold(on, true); | |
b1589621 KL |
1249 | } |
1250 | ||
1251 | /** | |
1252 | * Create a SGR parameter sequence for enabling boldface. | |
1253 | * | |
05dbb28d KL |
1254 | * @param on if true, turn on bold |
1255 | * @param header if true, make the full header, otherwise just emit the | |
1256 | * bare parameter e.g. "1;" | |
1257 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
1258 | * e.g. "\033[1m" | |
b1589621 | 1259 | */ |
7b5261bc KL |
1260 | public String bold(final boolean on, final boolean header) { |
1261 | if (header) { | |
1262 | if (on) { | |
1263 | return "\033[1m"; | |
1264 | } | |
1265 | return "\033[22m"; | |
1266 | } | |
1267 | if (on) { | |
1268 | return "1;"; | |
1269 | } | |
1270 | return "22;"; | |
b1589621 KL |
1271 | } |
1272 | ||
1273 | /** | |
1274 | * Create a SGR parameter sequence for enabling blinking text. | |
1275 | * | |
05dbb28d KL |
1276 | * @param on if true, turn on blink |
1277 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
1278 | * e.g. "\033[5m" | |
b1589621 | 1279 | */ |
7b5261bc KL |
1280 | public String blink(final boolean on) { |
1281 | return blink(on, true); | |
b1589621 KL |
1282 | } |
1283 | ||
1284 | /** | |
1285 | * Create a SGR parameter sequence for enabling blinking text. | |
1286 | * | |
05dbb28d KL |
1287 | * @param on if true, turn on blink |
1288 | * @param header if true, make the full header, otherwise just emit the | |
1289 | * bare parameter e.g. "5;" | |
1290 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
1291 | * e.g. "\033[5m" | |
b1589621 | 1292 | */ |
7b5261bc KL |
1293 | public String blink(final boolean on, final boolean header) { |
1294 | if (header) { | |
1295 | if (on) { | |
1296 | return "\033[5m"; | |
1297 | } | |
1298 | return "\033[25m"; | |
1299 | } | |
1300 | if (on) { | |
1301 | return "5;"; | |
1302 | } | |
1303 | return "25;"; | |
b1589621 KL |
1304 | } |
1305 | ||
1306 | /** | |
05dbb28d KL |
1307 | * Create a SGR parameter sequence for enabling underline / underscored |
1308 | * text. | |
b1589621 | 1309 | * |
05dbb28d KL |
1310 | * @param on if true, turn on underline |
1311 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
1312 | * e.g. "\033[4m" | |
b1589621 | 1313 | */ |
7b5261bc KL |
1314 | public String underline(final boolean on) { |
1315 | if (on) { | |
1316 | return "\033[4m"; | |
1317 | } | |
1318 | return "\033[24m"; | |
b1589621 KL |
1319 | } |
1320 | ||
1321 | /** | |
1322 | * Create a SGR parameter sequence for enabling the visible cursor. | |
1323 | * | |
05dbb28d KL |
1324 | * @param on if true, turn on cursor |
1325 | * @return the string to emit to an ANSI / ECMA-style terminal | |
b1589621 | 1326 | */ |
7b5261bc KL |
1327 | public String cursor(final boolean on) { |
1328 | if (on && !cursorOn) { | |
1329 | cursorOn = true; | |
1330 | return "\033[?25h"; | |
1331 | } | |
1332 | if (!on && cursorOn) { | |
1333 | cursorOn = false; | |
1334 | return "\033[?25l"; | |
1335 | } | |
1336 | return ""; | |
b1589621 KL |
1337 | } |
1338 | ||
1339 | /** | |
1340 | * Clear the entire screen. Because some terminals use back-color-erase, | |
1341 | * set the color to white-on-black beforehand. | |
1342 | * | |
05dbb28d | 1343 | * @return the string to emit to an ANSI / ECMA-style terminal |
b1589621 | 1344 | */ |
7b5261bc KL |
1345 | public String clearAll() { |
1346 | return "\033[0;37;40m\033[2J"; | |
b1589621 KL |
1347 | } |
1348 | ||
1349 | /** | |
1350 | * Clear the line from the cursor (inclusive) to the end of the screen. | |
1351 | * Because some terminals use back-color-erase, set the color to | |
1352 | * white-on-black beforehand. | |
1353 | * | |
05dbb28d | 1354 | * @return the string to emit to an ANSI / ECMA-style terminal |
b1589621 | 1355 | */ |
7b5261bc KL |
1356 | public String clearRemainingLine() { |
1357 | return "\033[0;37;40m\033[K"; | |
b1589621 KL |
1358 | } |
1359 | ||
1360 | /** | |
1361 | * Clear the line up the cursor (inclusive). Because some terminals use | |
1362 | * back-color-erase, set the color to white-on-black beforehand. | |
1363 | * | |
05dbb28d | 1364 | * @return the string to emit to an ANSI / ECMA-style terminal |
b1589621 | 1365 | */ |
7b5261bc KL |
1366 | public String clearPreceedingLine() { |
1367 | return "\033[0;37;40m\033[1K"; | |
b1589621 KL |
1368 | } |
1369 | ||
1370 | /** | |
1371 | * Clear the line. Because some terminals use back-color-erase, set the | |
1372 | * color to white-on-black beforehand. | |
1373 | * | |
05dbb28d | 1374 | * @return the string to emit to an ANSI / ECMA-style terminal |
b1589621 | 1375 | */ |
7b5261bc KL |
1376 | public String clearLine() { |
1377 | return "\033[0;37;40m\033[2K"; | |
b1589621 KL |
1378 | } |
1379 | ||
1380 | /** | |
1381 | * Move the cursor to the top-left corner. | |
1382 | * | |
05dbb28d | 1383 | * @return the string to emit to an ANSI / ECMA-style terminal |
b1589621 | 1384 | */ |
7b5261bc KL |
1385 | public String home() { |
1386 | return "\033[H"; | |
b1589621 KL |
1387 | } |
1388 | ||
1389 | /** | |
1390 | * Move the cursor to (x, y). | |
1391 | * | |
05dbb28d KL |
1392 | * @param x column coordinate. 0 is the left-most column. |
1393 | * @param y row coordinate. 0 is the top-most row. | |
1394 | * @return the string to emit to an ANSI / ECMA-style terminal | |
b1589621 | 1395 | */ |
7b5261bc KL |
1396 | public String gotoXY(final int x, final int y) { |
1397 | return String.format("\033[%d;%dH", y + 1, x + 1); | |
b1589621 KL |
1398 | } |
1399 | ||
1400 | /** | |
05dbb28d KL |
1401 | * Tell (u)xterm that we want to receive mouse events based on "Any event |
1402 | * tracking" and UTF-8 coordinates. See | |
b1589621 KL |
1403 | * http://invisible-island.net/xterm/ctlseqs/ctlseqs.html#Mouse%20Tracking |
1404 | * | |
05dbb28d | 1405 | * Note that this also sets the alternate/primary screen buffer. |
b1589621 | 1406 | * |
05dbb28d KL |
1407 | * @param on If true, enable mouse report and use the alternate screen |
1408 | * buffer. If false disable mouse reporting and use the primary screen | |
1409 | * buffer. | |
1410 | * @return the string to emit to xterm | |
b1589621 | 1411 | */ |
7b5261bc KL |
1412 | public String mouse(final boolean on) { |
1413 | if (on) { | |
1414 | return "\033[?1003;1005h\033[?1049h"; | |
1415 | } | |
1416 | return "\033[?1003;1005l\033[?1049l"; | |
b1589621 KL |
1417 | } |
1418 | ||
4328bb42 KL |
1419 | /** |
1420 | * Read function runs on a separate thread. | |
1421 | */ | |
1422 | public void run() { | |
7b5261bc KL |
1423 | boolean done = false; |
1424 | // available() will often return > 1, so we need to read in chunks to | |
1425 | // stay caught up. | |
1426 | char [] readBuffer = new char[128]; | |
1427 | List<TInputEvent> events = new LinkedList<TInputEvent>(); | |
1428 | ||
1429 | while (!done && !stopReaderThread) { | |
1430 | try { | |
1431 | // We assume that if inputStream has bytes available, then | |
1432 | // input won't block on read(). | |
1433 | int n = inputStream.available(); | |
1434 | if (n > 0) { | |
1435 | if (readBuffer.length < n) { | |
1436 | // The buffer wasn't big enough, make it huger | |
1437 | readBuffer = new char[readBuffer.length * 2]; | |
1438 | } | |
1439 | ||
bb35d919 | 1440 | int rc = input.read(readBuffer, 0, readBuffer.length); |
7b5261bc KL |
1441 | // System.err.printf("read() %d", rc); System.err.flush(); |
1442 | if (rc == -1) { | |
1443 | // This is EOF | |
1444 | done = true; | |
1445 | } else { | |
1446 | for (int i = 0; i < rc; i++) { | |
1447 | int ch = readBuffer[i]; | |
1448 | processChar(events, (char)ch); | |
1449 | if (events.size() > 0) { | |
1450 | // Add to the queue for the backend thread to | |
1451 | // be able to obtain. | |
1452 | synchronized (eventQueue) { | |
1453 | eventQueue.addAll(events); | |
1454 | } | |
92554d64 KL |
1455 | synchronized (listener) { |
1456 | listener.notifyAll(); | |
7b5261bc KL |
1457 | } |
1458 | events.clear(); | |
1459 | } | |
1460 | } | |
1461 | } | |
1462 | } else { | |
a83fea2b KL |
1463 | getIdleEvents(events); |
1464 | if (events.size() > 0) { | |
1465 | synchronized (eventQueue) { | |
1466 | eventQueue.addAll(events); | |
1467 | } | |
1468 | events.clear(); | |
92554d64 KL |
1469 | synchronized (listener) { |
1470 | listener.notifyAll(); | |
1471 | } | |
a83fea2b KL |
1472 | } |
1473 | ||
8dc20d38 KL |
1474 | // Wait 10 millis for more data |
1475 | Thread.sleep(10); | |
7b5261bc KL |
1476 | } |
1477 | // System.err.println("end while loop"); System.err.flush(); | |
1478 | } catch (InterruptedException e) { | |
1479 | // SQUASH | |
1480 | } catch (IOException e) { | |
1481 | e.printStackTrace(); | |
1482 | done = true; | |
1483 | } | |
1484 | } // while ((done == false) && (stopReaderThread == false)) | |
1485 | // System.err.println("*** run() exiting..."); System.err.flush(); | |
4328bb42 KL |
1486 | } |
1487 | ||
b1589621 | 1488 | } |