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