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