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