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daa4106c | 1 | /* |
b1589621 KL |
2 | * Jexer - Java Text User Interface |
3 | * | |
e16dda65 | 4 | * The MIT License (MIT) |
b1589621 | 5 | * |
a2018e99 | 6 | * Copyright (C) 2017 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 | 28 | */ |
42873e30 | 29 | package jexer.backend; |
b1589621 KL |
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; | |
b1589621 KL |
43 | import java.util.List; |
44 | import java.util.LinkedList; | |
45 | ||
42873e30 KL |
46 | import jexer.bits.Cell; |
47 | import jexer.bits.CellAttributes; | |
b1589621 KL |
48 | import jexer.bits.Color; |
49 | import jexer.event.TInputEvent; | |
50 | import jexer.event.TKeypressEvent; | |
51 | import jexer.event.TMouseEvent; | |
52 | import jexer.event.TResizeEvent; | |
b1589621 KL |
53 | import static jexer.TKeypress.*; |
54 | ||
55 | /** | |
7b5261bc KL |
56 | * This class reads keystrokes and mouse events and emits output to ANSI |
57 | * X3.64 / ECMA-48 type terminals e.g. xterm, linux, vt100, ansi.sys, etc. | |
b1589621 | 58 | */ |
42873e30 KL |
59 | public final class ECMA48Terminal extends LogicalScreen |
60 | implements TerminalReader, Runnable { | |
61 | ||
62 | /** | |
63 | * Emit debugging to stderr. | |
64 | */ | |
65 | private boolean debugToStderr = false; | |
b1589621 | 66 | |
15ea4d73 KL |
67 | /** |
68 | * If true, emit T.416-style RGB colors. This is a) expensive in | |
69 | * bandwidth, and b) potentially terrible looking for non-xterms. | |
70 | */ | |
71 | private static boolean doRgbColor = false; | |
72 | ||
b1589621 | 73 | /** |
7b5261bc KL |
74 | * The session information. |
75 | */ | |
76 | private SessionInfo sessionInfo; | |
77 | ||
78 | /** | |
79 | * Getter for sessionInfo. | |
80 | * | |
81 | * @return the SessionInfo | |
b1589621 | 82 | */ |
2b9c27db | 83 | public SessionInfo getSessionInfo() { |
7b5261bc KL |
84 | return sessionInfo; |
85 | } | |
b1589621 | 86 | |
4328bb42 | 87 | /** |
7b5261bc | 88 | * The event queue, filled up by a thread reading on input. |
4328bb42 KL |
89 | */ |
90 | private List<TInputEvent> eventQueue; | |
91 | ||
92 | /** | |
93 | * If true, we want the reader thread to exit gracefully. | |
94 | */ | |
95 | private boolean stopReaderThread; | |
96 | ||
97 | /** | |
7b5261bc | 98 | * The reader thread. |
4328bb42 KL |
99 | */ |
100 | private Thread readerThread; | |
101 | ||
b1589621 KL |
102 | /** |
103 | * Parameters being collected. E.g. if the string is \033[1;3m, then | |
104 | * params[0] will be 1 and params[1] will be 3. | |
105 | */ | |
106 | private ArrayList<String> params; | |
107 | ||
b1589621 | 108 | /** |
7b5261bc | 109 | * States in the input parser. |
b1589621 KL |
110 | */ |
111 | private enum ParseState { | |
7b5261bc KL |
112 | GROUND, |
113 | ESCAPE, | |
114 | ESCAPE_INTERMEDIATE, | |
115 | CSI_ENTRY, | |
116 | CSI_PARAM, | |
b5f2a6db KL |
117 | MOUSE, |
118 | MOUSE_SGR, | |
b1589621 KL |
119 | } |
120 | ||
121 | /** | |
7b5261bc | 122 | * Current parsing state. |
b1589621 KL |
123 | */ |
124 | private ParseState state; | |
125 | ||
126 | /** | |
7b5261bc KL |
127 | * The time we entered ESCAPE. If we get a bare escape without a code |
128 | * following it, this is used to return that bare escape. | |
b1589621 KL |
129 | */ |
130 | private long escapeTime; | |
131 | ||
a83fea2b KL |
132 | /** |
133 | * The time we last checked the window size. We try not to spawn stty | |
134 | * more than once per second. | |
135 | */ | |
136 | private long windowSizeTime; | |
137 | ||
b1589621 KL |
138 | /** |
139 | * true if mouse1 was down. Used to report mouse1 on the release event. | |
140 | */ | |
141 | private boolean mouse1; | |
142 | ||
143 | /** | |
144 | * true if mouse2 was down. Used to report mouse2 on the release event. | |
145 | */ | |
146 | private boolean mouse2; | |
147 | ||
148 | /** | |
149 | * true if mouse3 was down. Used to report mouse3 on the release event. | |
150 | */ | |
151 | private boolean mouse3; | |
152 | ||
153 | /** | |
154 | * Cache the cursor visibility value so we only emit the sequence when we | |
155 | * need to. | |
156 | */ | |
157 | private boolean cursorOn = true; | |
158 | ||
159 | /** | |
160 | * Cache the last window size to figure out if a TResizeEvent needs to be | |
161 | * generated. | |
162 | */ | |
163 | private TResizeEvent windowResize = null; | |
164 | ||
165 | /** | |
166 | * If true, then we changed System.in and need to change it back. | |
167 | */ | |
168 | private boolean setRawMode; | |
169 | ||
170 | /** | |
171 | * The terminal's input. If an InputStream is not specified in the | |
4328bb42 KL |
172 | * constructor, then this InputStreamReader will be bound to System.in |
173 | * with UTF-8 encoding. | |
b1589621 KL |
174 | */ |
175 | private Reader input; | |
176 | ||
4328bb42 KL |
177 | /** |
178 | * The terminal's raw InputStream. If an InputStream is not specified in | |
179 | * the constructor, then this InputReader will be bound to System.in. | |
180 | * This is used by run() to see if bytes are available() before calling | |
181 | * (Reader)input.read(). | |
182 | */ | |
183 | private InputStream inputStream; | |
184 | ||
b1589621 KL |
185 | /** |
186 | * The terminal's output. If an OutputStream is not specified in the | |
187 | * constructor, then this PrintWriter will be bound to System.out with | |
188 | * UTF-8 encoding. | |
189 | */ | |
190 | private PrintWriter output; | |
191 | ||
92554d64 KL |
192 | /** |
193 | * The listening object that run() wakes up on new input. | |
194 | */ | |
195 | private Object listener; | |
196 | ||
88a99379 KL |
197 | /** |
198 | * Set listener to a different Object. | |
199 | * | |
200 | * @param listener the new listening object that run() wakes up on new | |
201 | * input | |
202 | */ | |
203 | public void setListener(final Object listener) { | |
204 | this.listener = listener; | |
205 | } | |
206 | ||
217c6107 KL |
207 | /** |
208 | * Get the output writer. | |
209 | * | |
210 | * @return the Writer | |
211 | */ | |
212 | public PrintWriter getOutput() { | |
7b5261bc | 213 | return output; |
217c6107 KL |
214 | } |
215 | ||
623a1bd1 KL |
216 | /** |
217 | * Check if there are events in the queue. | |
218 | * | |
219 | * @return if true, getEvents() has something to return to the backend | |
220 | */ | |
221 | public boolean hasEvents() { | |
7b5261bc KL |
222 | synchronized (eventQueue) { |
223 | return (eventQueue.size() > 0); | |
224 | } | |
623a1bd1 KL |
225 | } |
226 | ||
b1589621 | 227 | /** |
7b5261bc KL |
228 | * Call 'stty' to set cooked mode. |
229 | * | |
230 | * <p>Actually executes '/bin/sh -c stty sane cooked < /dev/tty' | |
b1589621 KL |
231 | */ |
232 | private void sttyCooked() { | |
7b5261bc | 233 | doStty(false); |
b1589621 KL |
234 | } |
235 | ||
236 | /** | |
7b5261bc KL |
237 | * Call 'stty' to set raw mode. |
238 | * | |
239 | * <p>Actually executes '/bin/sh -c stty -ignbrk -brkint -parmrk -istrip | |
240 | * -inlcr -igncr -icrnl -ixon -opost -echo -echonl -icanon -isig -iexten | |
241 | * -parenb cs8 min 1 < /dev/tty' | |
b1589621 KL |
242 | */ |
243 | private void sttyRaw() { | |
7b5261bc | 244 | doStty(true); |
b1589621 KL |
245 | } |
246 | ||
247 | /** | |
248 | * Call 'stty' to set raw or cooked mode. | |
249 | * | |
250 | * @param mode if true, set raw mode, otherwise set cooked mode | |
251 | */ | |
7b5261bc KL |
252 | private void doStty(final boolean mode) { |
253 | String [] cmdRaw = { | |
254 | "/bin/sh", "-c", "stty -ignbrk -brkint -parmrk -istrip -inlcr -igncr -icrnl -ixon -opost -echo -echonl -icanon -isig -iexten -parenb cs8 min 1 < /dev/tty" | |
255 | }; | |
256 | String [] cmdCooked = { | |
257 | "/bin/sh", "-c", "stty sane cooked < /dev/tty" | |
258 | }; | |
259 | try { | |
260 | Process process; | |
2b9c27db | 261 | if (mode) { |
7b5261bc KL |
262 | process = Runtime.getRuntime().exec(cmdRaw); |
263 | } else { | |
264 | process = Runtime.getRuntime().exec(cmdCooked); | |
265 | } | |
266 | BufferedReader in = new BufferedReader(new InputStreamReader(process.getInputStream(), "UTF-8")); | |
267 | String line = in.readLine(); | |
268 | if ((line != null) && (line.length() > 0)) { | |
269 | System.err.println("WEIRD?! Normal output from stty: " + line); | |
270 | } | |
271 | while (true) { | |
272 | BufferedReader err = new BufferedReader(new InputStreamReader(process.getErrorStream(), "UTF-8")); | |
273 | line = err.readLine(); | |
274 | if ((line != null) && (line.length() > 0)) { | |
275 | System.err.println("Error output from stty: " + line); | |
276 | } | |
277 | try { | |
278 | process.waitFor(); | |
279 | break; | |
280 | } catch (InterruptedException e) { | |
281 | e.printStackTrace(); | |
282 | } | |
283 | } | |
284 | int rc = process.exitValue(); | |
285 | if (rc != 0) { | |
286 | System.err.println("stty returned error code: " + rc); | |
287 | } | |
288 | } catch (IOException e) { | |
289 | e.printStackTrace(); | |
290 | } | |
b1589621 KL |
291 | } |
292 | ||
293 | /** | |
7b5261bc | 294 | * Constructor sets up state for getEvent(). |
eb29bbb5 KL |
295 | * |
296 | * @param listener the object this backend needs to wake up when new | |
297 | * input comes in | |
298 | * @param input an InputStream connected to the remote user, or null for | |
299 | * System.in. If System.in is used, then on non-Windows systems it will | |
300 | * be put in raw mode; shutdown() will (blindly!) put System.in in cooked | |
301 | * mode. input is always converted to a Reader with UTF-8 encoding. | |
302 | * @param output an OutputStream connected to the remote user, or null | |
303 | * for System.out. output is always converted to a Writer with UTF-8 | |
304 | * encoding. | |
305 | * @param windowWidth the number of text columns to start with | |
306 | * @param windowHeight the number of text rows to start with | |
307 | * @throws UnsupportedEncodingException if an exception is thrown when | |
308 | * creating the InputStreamReader | |
309 | */ | |
310 | public ECMA48Terminal(final Object listener, final InputStream input, | |
311 | final OutputStream output, final int windowWidth, | |
312 | final int windowHeight) throws UnsupportedEncodingException { | |
313 | ||
314 | this(listener, input, output); | |
315 | ||
316 | // Send dtterm/xterm sequences, which will probably not work because | |
317 | // allowWindowOps is defaulted to false. | |
318 | String resizeString = String.format("\033[8;%d;%dt", windowHeight, | |
319 | windowWidth); | |
320 | this.output.write(resizeString); | |
321 | this.output.flush(); | |
322 | } | |
323 | ||
324 | /** | |
325 | * Constructor sets up state for getEvent(). | |
b1589621 | 326 | * |
92554d64 KL |
327 | * @param listener the object this backend needs to wake up when new |
328 | * input comes in | |
b1589621 KL |
329 | * @param input an InputStream connected to the remote user, or null for |
330 | * System.in. If System.in is used, then on non-Windows systems it will | |
331 | * be put in raw mode; shutdown() will (blindly!) put System.in in cooked | |
332 | * mode. input is always converted to a Reader with UTF-8 encoding. | |
333 | * @param output an OutputStream connected to the remote user, or null | |
334 | * for System.out. output is always converted to a Writer with UTF-8 | |
335 | * encoding. | |
7b5261bc KL |
336 | * @throws UnsupportedEncodingException if an exception is thrown when |
337 | * creating the InputStreamReader | |
b1589621 | 338 | */ |
92554d64 | 339 | public ECMA48Terminal(final Object listener, final InputStream input, |
7b5261bc KL |
340 | final OutputStream output) throws UnsupportedEncodingException { |
341 | ||
42873e30 | 342 | resetParser(); |
7b5261bc KL |
343 | mouse1 = false; |
344 | mouse2 = false; | |
345 | mouse3 = false; | |
346 | stopReaderThread = false; | |
92554d64 | 347 | this.listener = listener; |
7b5261bc KL |
348 | |
349 | if (input == null) { | |
350 | // inputStream = System.in; | |
351 | inputStream = new FileInputStream(FileDescriptor.in); | |
352 | sttyRaw(); | |
353 | setRawMode = true; | |
354 | } else { | |
355 | inputStream = input; | |
356 | } | |
357 | this.input = new InputStreamReader(inputStream, "UTF-8"); | |
358 | ||
7b5261bc | 359 | if (input instanceof SessionInfo) { |
ea91242c KL |
360 | // This is a TelnetInputStream that exposes window size and |
361 | // environment variables from the telnet layer. | |
7b5261bc KL |
362 | sessionInfo = (SessionInfo) input; |
363 | } | |
364 | if (sessionInfo == null) { | |
365 | if (input == null) { | |
366 | // Reading right off the tty | |
367 | sessionInfo = new TTYSessionInfo(); | |
368 | } else { | |
369 | sessionInfo = new TSessionInfo(); | |
370 | } | |
371 | } | |
372 | ||
373 | if (output == null) { | |
374 | this.output = new PrintWriter(new OutputStreamWriter(System.out, | |
375 | "UTF-8")); | |
376 | } else { | |
377 | this.output = new PrintWriter(new OutputStreamWriter(output, | |
378 | "UTF-8")); | |
379 | } | |
380 | ||
381 | // Enable mouse reporting and metaSendsEscape | |
382 | this.output.printf("%s%s", mouse(true), xtermMetaSendsEscape(true)); | |
55b4f29b | 383 | this.output.flush(); |
7b5261bc | 384 | |
3e074355 KL |
385 | // Query the screen size |
386 | sessionInfo.queryWindowSize(); | |
387 | setDimensions(sessionInfo.getWindowWidth(), | |
388 | sessionInfo.getWindowHeight()); | |
389 | ||
7b5261bc KL |
390 | // Hang onto the window size |
391 | windowResize = new TResizeEvent(TResizeEvent.Type.SCREEN, | |
392 | sessionInfo.getWindowWidth(), sessionInfo.getWindowHeight()); | |
393 | ||
15ea4d73 KL |
394 | // Permit RGB colors only if externally requested |
395 | if (System.getProperty("jexer.ECMA48.rgbColor") != null) { | |
396 | if (System.getProperty("jexer.ECMA48.rgbColor").equals("true")) { | |
397 | doRgbColor = true; | |
3e074355 KL |
398 | } else { |
399 | doRgbColor = false; | |
15ea4d73 KL |
400 | } |
401 | } | |
402 | ||
7b5261bc KL |
403 | // Spin up the input reader |
404 | eventQueue = new LinkedList<TInputEvent>(); | |
405 | readerThread = new Thread(this); | |
406 | readerThread.start(); | |
42873e30 | 407 | |
42873e30 KL |
408 | // Clear the screen |
409 | this.output.write(clearAll()); | |
410 | this.output.flush(); | |
b1589621 KL |
411 | } |
412 | ||
6985c572 KL |
413 | /** |
414 | * Constructor sets up state for getEvent(). | |
415 | * | |
416 | * @param listener the object this backend needs to wake up when new | |
417 | * input comes in | |
418 | * @param input the InputStream underlying 'reader'. Its available() | |
419 | * method is used to determine if reader.read() will block or not. | |
420 | * @param reader a Reader connected to the remote user. | |
421 | * @param writer a PrintWriter connected to the remote user. | |
422 | * @param setRawMode if true, set System.in into raw mode with stty. | |
423 | * This should in general not be used. It is here solely for Demo3, | |
424 | * which uses System.in. | |
425 | * @throws IllegalArgumentException if input, reader, or writer are null. | |
426 | */ | |
427 | public ECMA48Terminal(final Object listener, final InputStream input, | |
428 | final Reader reader, final PrintWriter writer, | |
429 | final boolean setRawMode) { | |
430 | ||
431 | if (input == null) { | |
432 | throw new IllegalArgumentException("InputStream must be specified"); | |
433 | } | |
434 | if (reader == null) { | |
435 | throw new IllegalArgumentException("Reader must be specified"); | |
436 | } | |
437 | if (writer == null) { | |
438 | throw new IllegalArgumentException("Writer must be specified"); | |
439 | } | |
42873e30 | 440 | resetParser(); |
6985c572 KL |
441 | mouse1 = false; |
442 | mouse2 = false; | |
443 | mouse3 = false; | |
444 | stopReaderThread = false; | |
445 | this.listener = listener; | |
446 | ||
447 | inputStream = input; | |
448 | this.input = reader; | |
449 | ||
450 | if (setRawMode == true) { | |
451 | sttyRaw(); | |
452 | } | |
453 | this.setRawMode = setRawMode; | |
454 | ||
455 | if (input instanceof SessionInfo) { | |
456 | // This is a TelnetInputStream that exposes window size and | |
457 | // environment variables from the telnet layer. | |
458 | sessionInfo = (SessionInfo) input; | |
459 | } | |
460 | if (sessionInfo == null) { | |
31b7033c KL |
461 | if (setRawMode == true) { |
462 | // Reading right off the tty | |
463 | sessionInfo = new TTYSessionInfo(); | |
464 | } else { | |
465 | sessionInfo = new TSessionInfo(); | |
466 | } | |
6985c572 KL |
467 | } |
468 | ||
469 | this.output = writer; | |
470 | ||
471 | // Enable mouse reporting and metaSendsEscape | |
472 | this.output.printf("%s%s", mouse(true), xtermMetaSendsEscape(true)); | |
473 | this.output.flush(); | |
474 | ||
3e074355 KL |
475 | // Query the screen size |
476 | sessionInfo.queryWindowSize(); | |
477 | setDimensions(sessionInfo.getWindowWidth(), | |
478 | sessionInfo.getWindowHeight()); | |
479 | ||
6985c572 KL |
480 | // Hang onto the window size |
481 | windowResize = new TResizeEvent(TResizeEvent.Type.SCREEN, | |
482 | sessionInfo.getWindowWidth(), sessionInfo.getWindowHeight()); | |
483 | ||
15ea4d73 KL |
484 | // Permit RGB colors only if externally requested |
485 | if (System.getProperty("jexer.ECMA48.rgbColor") != null) { | |
486 | if (System.getProperty("jexer.ECMA48.rgbColor").equals("true")) { | |
487 | doRgbColor = true; | |
3e074355 KL |
488 | } else { |
489 | doRgbColor = false; | |
15ea4d73 KL |
490 | } |
491 | } | |
492 | ||
6985c572 KL |
493 | // Spin up the input reader |
494 | eventQueue = new LinkedList<TInputEvent>(); | |
495 | readerThread = new Thread(this); | |
496 | readerThread.start(); | |
42873e30 | 497 | |
42873e30 KL |
498 | // Clear the screen |
499 | this.output.write(clearAll()); | |
500 | this.output.flush(); | |
6985c572 KL |
501 | } |
502 | ||
503 | /** | |
504 | * Constructor sets up state for getEvent(). | |
505 | * | |
506 | * @param listener the object this backend needs to wake up when new | |
507 | * input comes in | |
508 | * @param input the InputStream underlying 'reader'. Its available() | |
509 | * method is used to determine if reader.read() will block or not. | |
510 | * @param reader a Reader connected to the remote user. | |
511 | * @param writer a PrintWriter connected to the remote user. | |
512 | * @throws IllegalArgumentException if input, reader, or writer are null. | |
513 | */ | |
514 | public ECMA48Terminal(final Object listener, final InputStream input, | |
515 | final Reader reader, final PrintWriter writer) { | |
516 | ||
517 | this(listener, input, reader, writer, false); | |
518 | } | |
519 | ||
b1589621 | 520 | /** |
7b5261bc | 521 | * Restore terminal to normal state. |
b1589621 | 522 | */ |
42873e30 | 523 | public void closeTerminal() { |
4328bb42 | 524 | |
7b5261bc KL |
525 | // System.err.println("=== shutdown() ==="); System.err.flush(); |
526 | ||
527 | // Tell the reader thread to stop looking at input | |
528 | stopReaderThread = true; | |
529 | try { | |
530 | readerThread.join(); | |
531 | } catch (InterruptedException e) { | |
532 | e.printStackTrace(); | |
533 | } | |
534 | ||
535 | // Disable mouse reporting and show cursor | |
536 | output.printf("%s%s%s", mouse(false), cursor(true), normal()); | |
537 | output.flush(); | |
538 | ||
539 | if (setRawMode) { | |
540 | sttyCooked(); | |
541 | setRawMode = false; | |
542 | // We don't close System.in/out | |
543 | } else { | |
544 | // Shut down the streams, this should wake up the reader thread | |
545 | // and make it exit. | |
546 | try { | |
547 | if (input != null) { | |
548 | input.close(); | |
549 | input = null; | |
550 | } | |
551 | if (output != null) { | |
552 | output.close(); | |
553 | output = null; | |
554 | } | |
555 | } catch (IOException e) { | |
556 | e.printStackTrace(); | |
557 | } | |
558 | } | |
b1589621 KL |
559 | } |
560 | ||
561 | /** | |
7b5261bc | 562 | * Flush output. |
b1589621 KL |
563 | */ |
564 | public void flush() { | |
7b5261bc | 565 | output.flush(); |
b1589621 KL |
566 | } |
567 | ||
42873e30 KL |
568 | /** |
569 | * Perform a somewhat-optimal rendering of a line. | |
570 | * | |
571 | * @param y row coordinate. 0 is the top-most row. | |
572 | * @param sb StringBuilder to write escape sequences to | |
573 | * @param lastAttr cell attributes from the last call to flushLine | |
574 | */ | |
575 | private void flushLine(final int y, final StringBuilder sb, | |
576 | CellAttributes lastAttr) { | |
577 | ||
578 | int lastX = -1; | |
579 | int textEnd = 0; | |
580 | for (int x = 0; x < width; x++) { | |
581 | Cell lCell = logical[x][y]; | |
582 | if (!lCell.isBlank()) { | |
583 | textEnd = x; | |
584 | } | |
585 | } | |
586 | // Push textEnd to first column beyond the text area | |
587 | textEnd++; | |
588 | ||
589 | // DEBUG | |
590 | // reallyCleared = true; | |
591 | ||
592 | for (int x = 0; x < width; x++) { | |
593 | Cell lCell = logical[x][y]; | |
594 | Cell pCell = physical[x][y]; | |
595 | ||
596 | if (!lCell.equals(pCell) || reallyCleared) { | |
597 | ||
598 | if (debugToStderr) { | |
599 | System.err.printf("\n--\n"); | |
600 | System.err.printf(" Y: %d X: %d\n", y, x); | |
601 | System.err.printf(" lCell: %s\n", lCell); | |
602 | System.err.printf(" pCell: %s\n", pCell); | |
603 | System.err.printf(" ==== \n"); | |
604 | } | |
605 | ||
606 | if (lastAttr == null) { | |
607 | lastAttr = new CellAttributes(); | |
608 | sb.append(normal()); | |
609 | } | |
610 | ||
611 | // Place the cell | |
612 | if ((lastX != (x - 1)) || (lastX == -1)) { | |
613 | // Advancing at least one cell, or the first gotoXY | |
614 | sb.append(gotoXY(x, y)); | |
615 | } | |
616 | ||
617 | assert (lastAttr != null); | |
618 | ||
619 | if ((x == textEnd) && (textEnd < width - 1)) { | |
620 | assert (lCell.isBlank()); | |
621 | ||
622 | for (int i = x; i < width; i++) { | |
623 | assert (logical[i][y].isBlank()); | |
624 | // Physical is always updated | |
625 | physical[i][y].reset(); | |
626 | } | |
627 | ||
628 | // Clear remaining line | |
629 | sb.append(clearRemainingLine()); | |
630 | lastAttr.reset(); | |
631 | return; | |
632 | } | |
633 | ||
634 | // Now emit only the modified attributes | |
635 | if ((lCell.getForeColor() != lastAttr.getForeColor()) | |
636 | && (lCell.getBackColor() != lastAttr.getBackColor()) | |
637 | && (lCell.isBold() == lastAttr.isBold()) | |
638 | && (lCell.isReverse() == lastAttr.isReverse()) | |
639 | && (lCell.isUnderline() == lastAttr.isUnderline()) | |
640 | && (lCell.isBlink() == lastAttr.isBlink()) | |
641 | ) { | |
642 | // Both colors changed, attributes the same | |
643 | sb.append(color(lCell.isBold(), | |
644 | lCell.getForeColor(), lCell.getBackColor())); | |
645 | ||
646 | if (debugToStderr) { | |
647 | System.err.printf("1 Change only fore/back colors\n"); | |
648 | } | |
649 | } else if ((lCell.getForeColor() != lastAttr.getForeColor()) | |
650 | && (lCell.getBackColor() != lastAttr.getBackColor()) | |
651 | && (lCell.isBold() != lastAttr.isBold()) | |
652 | && (lCell.isReverse() != lastAttr.isReverse()) | |
653 | && (lCell.isUnderline() != lastAttr.isUnderline()) | |
654 | && (lCell.isBlink() != lastAttr.isBlink()) | |
655 | ) { | |
656 | // Everything is different | |
657 | sb.append(color(lCell.getForeColor(), | |
658 | lCell.getBackColor(), | |
659 | lCell.isBold(), lCell.isReverse(), | |
660 | lCell.isBlink(), | |
661 | lCell.isUnderline())); | |
662 | ||
663 | if (debugToStderr) { | |
664 | System.err.printf("2 Set all attributes\n"); | |
665 | } | |
666 | } else if ((lCell.getForeColor() != lastAttr.getForeColor()) | |
667 | && (lCell.getBackColor() == lastAttr.getBackColor()) | |
668 | && (lCell.isBold() == lastAttr.isBold()) | |
669 | && (lCell.isReverse() == lastAttr.isReverse()) | |
670 | && (lCell.isUnderline() == lastAttr.isUnderline()) | |
671 | && (lCell.isBlink() == lastAttr.isBlink()) | |
672 | ) { | |
673 | ||
674 | // Attributes same, foreColor different | |
675 | sb.append(color(lCell.isBold(), | |
676 | lCell.getForeColor(), true)); | |
677 | ||
678 | if (debugToStderr) { | |
679 | System.err.printf("3 Change foreColor\n"); | |
680 | } | |
681 | } else if ((lCell.getForeColor() == lastAttr.getForeColor()) | |
682 | && (lCell.getBackColor() != lastAttr.getBackColor()) | |
683 | && (lCell.isBold() == lastAttr.isBold()) | |
684 | && (lCell.isReverse() == lastAttr.isReverse()) | |
685 | && (lCell.isUnderline() == lastAttr.isUnderline()) | |
686 | && (lCell.isBlink() == lastAttr.isBlink()) | |
687 | ) { | |
688 | // Attributes same, backColor different | |
689 | sb.append(color(lCell.isBold(), | |
690 | lCell.getBackColor(), false)); | |
691 | ||
692 | if (debugToStderr) { | |
693 | System.err.printf("4 Change backColor\n"); | |
694 | } | |
695 | } else if ((lCell.getForeColor() == lastAttr.getForeColor()) | |
696 | && (lCell.getBackColor() == lastAttr.getBackColor()) | |
697 | && (lCell.isBold() == lastAttr.isBold()) | |
698 | && (lCell.isReverse() == lastAttr.isReverse()) | |
699 | && (lCell.isUnderline() == lastAttr.isUnderline()) | |
700 | && (lCell.isBlink() == lastAttr.isBlink()) | |
701 | ) { | |
702 | ||
703 | // All attributes the same, just print the char | |
704 | // NOP | |
705 | ||
706 | if (debugToStderr) { | |
707 | System.err.printf("5 Only emit character\n"); | |
708 | } | |
709 | } else { | |
710 | // Just reset everything again | |
711 | sb.append(color(lCell.getForeColor(), | |
712 | lCell.getBackColor(), | |
713 | lCell.isBold(), | |
714 | lCell.isReverse(), | |
715 | lCell.isBlink(), | |
716 | lCell.isUnderline())); | |
717 | ||
718 | if (debugToStderr) { | |
719 | System.err.printf("6 Change all attributes\n"); | |
720 | } | |
721 | } | |
722 | // Emit the character | |
723 | sb.append(lCell.getChar()); | |
724 | ||
725 | // Save the last rendered cell | |
726 | lastX = x; | |
727 | lastAttr.setTo(lCell); | |
728 | ||
729 | // Physical is always updated | |
730 | physical[x][y].setTo(lCell); | |
731 | ||
732 | } // if (!lCell.equals(pCell) || (reallyCleared == true)) | |
733 | ||
734 | } // for (int x = 0; x < width; x++) | |
735 | } | |
736 | ||
737 | /** | |
738 | * Render the screen to a string that can be emitted to something that | |
739 | * knows how to process ECMA-48/ANSI X3.64 escape sequences. | |
740 | * | |
741 | * @return escape sequences string that provides the updates to the | |
742 | * physical screen | |
743 | */ | |
744 | private String flushString() { | |
42873e30 KL |
745 | CellAttributes attr = null; |
746 | ||
747 | StringBuilder sb = new StringBuilder(); | |
748 | if (reallyCleared) { | |
749 | attr = new CellAttributes(); | |
750 | sb.append(clearAll()); | |
751 | } | |
752 | ||
753 | for (int y = 0; y < height; y++) { | |
754 | flushLine(y, sb, attr); | |
755 | } | |
756 | ||
42873e30 KL |
757 | reallyCleared = false; |
758 | ||
759 | String result = sb.toString(); | |
760 | if (debugToStderr) { | |
761 | System.err.printf("flushString(): %s\n", result); | |
762 | } | |
763 | return result; | |
764 | } | |
765 | ||
766 | /** | |
767 | * Push the logical screen to the physical device. | |
768 | */ | |
769 | @Override | |
770 | public void flushPhysical() { | |
771 | String result = flushString(); | |
772 | if ((cursorVisible) | |
fe0770f9 KL |
773 | && (cursorY >= 0) |
774 | && (cursorX >= 0) | |
42873e30 KL |
775 | && (cursorY <= height - 1) |
776 | && (cursorX <= width - 1) | |
777 | ) { | |
778 | result += cursor(true); | |
779 | result += gotoXY(cursorX, cursorY); | |
780 | } else { | |
781 | result += cursor(false); | |
782 | } | |
783 | output.write(result); | |
784 | flush(); | |
785 | } | |
786 | ||
787 | /** | |
788 | * Set the window title. | |
789 | * | |
790 | * @param title the new title | |
791 | */ | |
792 | public void setTitle(final String title) { | |
793 | output.write(getSetTitleString(title)); | |
794 | flush(); | |
795 | } | |
796 | ||
b1589621 | 797 | /** |
7b5261bc | 798 | * Reset keyboard/mouse input parser. |
b1589621 | 799 | */ |
42873e30 | 800 | private void resetParser() { |
7b5261bc KL |
801 | state = ParseState.GROUND; |
802 | params = new ArrayList<String>(); | |
7b5261bc KL |
803 | params.clear(); |
804 | params.add(""); | |
b1589621 KL |
805 | } |
806 | ||
807 | /** | |
808 | * Produce a control character or one of the special ones (ENTER, TAB, | |
7b5261bc | 809 | * etc.). |
b1589621 KL |
810 | * |
811 | * @param ch Unicode code point | |
b299e69c | 812 | * @param alt if true, set alt on the TKeypress |
7b5261bc | 813 | * @return one TKeypress event, either a control character (e.g. isKey == |
b1589621 KL |
814 | * false, ch == 'A', ctrl == true), or a special key (e.g. isKey == true, |
815 | * fnKey == ESC) | |
816 | */ | |
b299e69c | 817 | private TKeypressEvent controlChar(final char ch, final boolean alt) { |
7b5261bc KL |
818 | // System.err.printf("controlChar: %02x\n", ch); |
819 | ||
820 | switch (ch) { | |
821 | case 0x0D: | |
822 | // Carriage return --> ENTER | |
b299e69c | 823 | return new TKeypressEvent(kbEnter, alt, false, false); |
7b5261bc KL |
824 | case 0x0A: |
825 | // Linefeed --> ENTER | |
b299e69c | 826 | return new TKeypressEvent(kbEnter, alt, false, false); |
7b5261bc KL |
827 | case 0x1B: |
828 | // ESC | |
b299e69c | 829 | return new TKeypressEvent(kbEsc, alt, false, false); |
7b5261bc KL |
830 | case '\t': |
831 | // TAB | |
b299e69c | 832 | return new TKeypressEvent(kbTab, alt, false, false); |
7b5261bc KL |
833 | default: |
834 | // Make all other control characters come back as the alphabetic | |
835 | // character with the ctrl field set. So SOH would be 'A' + | |
836 | // ctrl. | |
b299e69c KL |
837 | return new TKeypressEvent(false, 0, (char)(ch + 0x40), |
838 | alt, true, false); | |
7b5261bc | 839 | } |
b1589621 KL |
840 | } |
841 | ||
842 | /** | |
843 | * Produce special key from CSI Pn ; Pm ; ... ~ | |
844 | * | |
845 | * @return one KEYPRESS event representing a special key | |
846 | */ | |
847 | private TInputEvent csiFnKey() { | |
7b5261bc | 848 | int key = 0; |
7b5261bc KL |
849 | if (params.size() > 0) { |
850 | key = Integer.parseInt(params.get(0)); | |
851 | } | |
b299e69c KL |
852 | boolean alt = false; |
853 | boolean ctrl = false; | |
854 | boolean shift = false; | |
32437017 KL |
855 | if (params.size() > 1) { |
856 | shift = csiIsShift(params.get(1)); | |
857 | alt = csiIsAlt(params.get(1)); | |
858 | ctrl = csiIsCtrl(params.get(1)); | |
b299e69c | 859 | } |
d4a29741 | 860 | |
b299e69c KL |
861 | switch (key) { |
862 | case 1: | |
863 | return new TKeypressEvent(kbHome, alt, ctrl, shift); | |
864 | case 2: | |
865 | return new TKeypressEvent(kbIns, alt, ctrl, shift); | |
866 | case 3: | |
867 | return new TKeypressEvent(kbDel, alt, ctrl, shift); | |
868 | case 4: | |
869 | return new TKeypressEvent(kbEnd, alt, ctrl, shift); | |
870 | case 5: | |
871 | return new TKeypressEvent(kbPgUp, alt, ctrl, shift); | |
872 | case 6: | |
873 | return new TKeypressEvent(kbPgDn, alt, ctrl, shift); | |
874 | case 15: | |
875 | return new TKeypressEvent(kbF5, alt, ctrl, shift); | |
876 | case 17: | |
877 | return new TKeypressEvent(kbF6, alt, ctrl, shift); | |
878 | case 18: | |
879 | return new TKeypressEvent(kbF7, alt, ctrl, shift); | |
880 | case 19: | |
881 | return new TKeypressEvent(kbF8, alt, ctrl, shift); | |
882 | case 20: | |
883 | return new TKeypressEvent(kbF9, alt, ctrl, shift); | |
884 | case 21: | |
885 | return new TKeypressEvent(kbF10, alt, ctrl, shift); | |
886 | case 23: | |
887 | return new TKeypressEvent(kbF11, alt, ctrl, shift); | |
888 | case 24: | |
889 | return new TKeypressEvent(kbF12, alt, ctrl, shift); | |
7b5261bc KL |
890 | default: |
891 | // Unknown | |
892 | return null; | |
893 | } | |
b1589621 KL |
894 | } |
895 | ||
896 | /** | |
897 | * Produce mouse events based on "Any event tracking" and UTF-8 | |
898 | * coordinates. See | |
899 | * http://invisible-island.net/xterm/ctlseqs/ctlseqs.html#Mouse%20Tracking | |
900 | * | |
901 | * @return a MOUSE_MOTION, MOUSE_UP, or MOUSE_DOWN event | |
902 | */ | |
903 | private TInputEvent parseMouse() { | |
7b5261bc KL |
904 | int buttons = params.get(0).charAt(0) - 32; |
905 | int x = params.get(0).charAt(1) - 32 - 1; | |
906 | int y = params.get(0).charAt(2) - 32 - 1; | |
907 | ||
908 | // Clamp X and Y to the physical screen coordinates. | |
909 | if (x >= windowResize.getWidth()) { | |
910 | x = windowResize.getWidth() - 1; | |
911 | } | |
912 | if (y >= windowResize.getHeight()) { | |
913 | y = windowResize.getHeight() - 1; | |
914 | } | |
915 | ||
d4a29741 KL |
916 | TMouseEvent.Type eventType = TMouseEvent.Type.MOUSE_DOWN; |
917 | boolean eventMouse1 = false; | |
918 | boolean eventMouse2 = false; | |
919 | boolean eventMouse3 = false; | |
920 | boolean eventMouseWheelUp = false; | |
921 | boolean eventMouseWheelDown = false; | |
7b5261bc KL |
922 | |
923 | // System.err.printf("buttons: %04x\r\n", buttons); | |
924 | ||
925 | switch (buttons) { | |
926 | case 0: | |
d4a29741 | 927 | eventMouse1 = true; |
7b5261bc KL |
928 | mouse1 = true; |
929 | break; | |
930 | case 1: | |
d4a29741 | 931 | eventMouse2 = true; |
7b5261bc KL |
932 | mouse2 = true; |
933 | break; | |
934 | case 2: | |
d4a29741 | 935 | eventMouse3 = true; |
7b5261bc KL |
936 | mouse3 = true; |
937 | break; | |
938 | case 3: | |
939 | // Release or Move | |
940 | if (!mouse1 && !mouse2 && !mouse3) { | |
d4a29741 | 941 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc | 942 | } else { |
d4a29741 | 943 | eventType = TMouseEvent.Type.MOUSE_UP; |
7b5261bc KL |
944 | } |
945 | if (mouse1) { | |
946 | mouse1 = false; | |
d4a29741 | 947 | eventMouse1 = true; |
7b5261bc KL |
948 | } |
949 | if (mouse2) { | |
950 | mouse2 = false; | |
d4a29741 | 951 | eventMouse2 = true; |
7b5261bc KL |
952 | } |
953 | if (mouse3) { | |
954 | mouse3 = false; | |
d4a29741 | 955 | eventMouse3 = true; |
7b5261bc KL |
956 | } |
957 | break; | |
958 | ||
959 | case 32: | |
960 | // Dragging with mouse1 down | |
d4a29741 | 961 | eventMouse1 = true; |
7b5261bc | 962 | mouse1 = true; |
d4a29741 | 963 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
964 | break; |
965 | ||
966 | case 33: | |
967 | // Dragging with mouse2 down | |
d4a29741 | 968 | eventMouse2 = true; |
7b5261bc | 969 | mouse2 = true; |
d4a29741 | 970 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
971 | break; |
972 | ||
973 | case 34: | |
974 | // Dragging with mouse3 down | |
d4a29741 | 975 | eventMouse3 = true; |
7b5261bc | 976 | mouse3 = true; |
d4a29741 | 977 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
978 | break; |
979 | ||
980 | case 96: | |
981 | // Dragging with mouse2 down after wheelUp | |
d4a29741 | 982 | eventMouse2 = true; |
7b5261bc | 983 | mouse2 = true; |
d4a29741 | 984 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
985 | break; |
986 | ||
987 | case 97: | |
988 | // Dragging with mouse2 down after wheelDown | |
d4a29741 | 989 | eventMouse2 = true; |
7b5261bc | 990 | mouse2 = true; |
d4a29741 | 991 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
992 | break; |
993 | ||
994 | case 64: | |
d4a29741 | 995 | eventMouseWheelUp = true; |
7b5261bc KL |
996 | break; |
997 | ||
998 | case 65: | |
d4a29741 | 999 | eventMouseWheelDown = true; |
7b5261bc KL |
1000 | break; |
1001 | ||
1002 | default: | |
1003 | // Unknown, just make it motion | |
d4a29741 | 1004 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
1005 | break; |
1006 | } | |
d4a29741 KL |
1007 | return new TMouseEvent(eventType, x, y, x, y, |
1008 | eventMouse1, eventMouse2, eventMouse3, | |
1009 | eventMouseWheelUp, eventMouseWheelDown); | |
b1589621 KL |
1010 | } |
1011 | ||
b5f2a6db KL |
1012 | /** |
1013 | * Produce mouse events based on "Any event tracking" and SGR | |
1014 | * coordinates. See | |
1015 | * http://invisible-island.net/xterm/ctlseqs/ctlseqs.html#Mouse%20Tracking | |
1016 | * | |
1017 | * @param release if true, this was a release ('m') | |
1018 | * @return a MOUSE_MOTION, MOUSE_UP, or MOUSE_DOWN event | |
1019 | */ | |
1020 | private TInputEvent parseMouseSGR(final boolean release) { | |
1021 | // SGR extended coordinates - mode 1006 | |
1022 | if (params.size() < 3) { | |
1023 | // Invalid position, bail out. | |
1024 | return null; | |
1025 | } | |
1026 | int buttons = Integer.parseInt(params.get(0)); | |
1027 | int x = Integer.parseInt(params.get(1)) - 1; | |
1028 | int y = Integer.parseInt(params.get(2)) - 1; | |
1029 | ||
1030 | // Clamp X and Y to the physical screen coordinates. | |
1031 | if (x >= windowResize.getWidth()) { | |
1032 | x = windowResize.getWidth() - 1; | |
1033 | } | |
1034 | if (y >= windowResize.getHeight()) { | |
1035 | y = windowResize.getHeight() - 1; | |
1036 | } | |
1037 | ||
1038 | TMouseEvent.Type eventType = TMouseEvent.Type.MOUSE_DOWN; | |
1039 | boolean eventMouse1 = false; | |
1040 | boolean eventMouse2 = false; | |
1041 | boolean eventMouse3 = false; | |
1042 | boolean eventMouseWheelUp = false; | |
1043 | boolean eventMouseWheelDown = false; | |
1044 | ||
1045 | if (release) { | |
1046 | eventType = TMouseEvent.Type.MOUSE_UP; | |
1047 | } | |
1048 | ||
1049 | switch (buttons) { | |
1050 | case 0: | |
1051 | eventMouse1 = true; | |
1052 | break; | |
1053 | case 1: | |
1054 | eventMouse2 = true; | |
1055 | break; | |
1056 | case 2: | |
1057 | eventMouse3 = true; | |
1058 | break; | |
1059 | case 35: | |
1060 | // Motion only, no buttons down | |
1061 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
1062 | break; | |
1063 | ||
1064 | case 32: | |
1065 | // Dragging with mouse1 down | |
1066 | eventMouse1 = true; | |
1067 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
1068 | break; | |
1069 | ||
1070 | case 33: | |
1071 | // Dragging with mouse2 down | |
1072 | eventMouse2 = true; | |
1073 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
1074 | break; | |
1075 | ||
1076 | case 34: | |
1077 | // Dragging with mouse3 down | |
1078 | eventMouse3 = true; | |
1079 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
1080 | break; | |
1081 | ||
1082 | case 96: | |
1083 | // Dragging with mouse2 down after wheelUp | |
1084 | eventMouse2 = true; | |
1085 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
1086 | break; | |
1087 | ||
1088 | case 97: | |
1089 | // Dragging with mouse2 down after wheelDown | |
1090 | eventMouse2 = true; | |
1091 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
1092 | break; | |
1093 | ||
1094 | case 64: | |
1095 | eventMouseWheelUp = true; | |
1096 | break; | |
1097 | ||
1098 | case 65: | |
1099 | eventMouseWheelDown = true; | |
1100 | break; | |
1101 | ||
1102 | default: | |
1103 | // Unknown, bail out | |
1104 | return null; | |
1105 | } | |
1106 | return new TMouseEvent(eventType, x, y, x, y, | |
1107 | eventMouse1, eventMouse2, eventMouse3, | |
1108 | eventMouseWheelUp, eventMouseWheelDown); | |
1109 | } | |
1110 | ||
b1589621 | 1111 | /** |
05dbb28d | 1112 | * Return any events in the IO queue. |
b1589621 | 1113 | * |
623a1bd1 | 1114 | * @param queue list to append new events to |
05dbb28d | 1115 | */ |
7b5261bc KL |
1116 | public void getEvents(final List<TInputEvent> queue) { |
1117 | synchronized (eventQueue) { | |
1118 | if (eventQueue.size() > 0) { | |
8e688b92 KL |
1119 | synchronized (queue) { |
1120 | queue.addAll(eventQueue); | |
1121 | } | |
7b5261bc KL |
1122 | eventQueue.clear(); |
1123 | } | |
1124 | } | |
05dbb28d KL |
1125 | } |
1126 | ||
1127 | /** | |
623a1bd1 | 1128 | * Return any events in the IO queue due to timeout. |
b1589621 | 1129 | * |
623a1bd1 | 1130 | * @param queue list to append new events to |
b1589621 | 1131 | */ |
a83fea2b | 1132 | private void getIdleEvents(final List<TInputEvent> queue) { |
be72cb5c | 1133 | long nowTime = System.currentTimeMillis(); |
7b5261bc KL |
1134 | |
1135 | // Check for new window size | |
be72cb5c | 1136 | long windowSizeDelay = nowTime - windowSizeTime; |
a83fea2b KL |
1137 | if (windowSizeDelay > 1000) { |
1138 | sessionInfo.queryWindowSize(); | |
1139 | int newWidth = sessionInfo.getWindowWidth(); | |
1140 | int newHeight = sessionInfo.getWindowHeight(); | |
85c07c5e | 1141 | |
a83fea2b KL |
1142 | if ((newWidth != windowResize.getWidth()) |
1143 | || (newHeight != windowResize.getHeight()) | |
1144 | ) { | |
85c07c5e KL |
1145 | |
1146 | if (debugToStderr) { | |
1147 | System.err.println("Screen size changed, old size " + | |
1148 | windowResize); | |
1149 | System.err.println(" new size " + | |
1150 | newWidth + " x " + newHeight); | |
1151 | } | |
1152 | ||
a83fea2b KL |
1153 | TResizeEvent event = new TResizeEvent(TResizeEvent.Type.SCREEN, |
1154 | newWidth, newHeight); | |
1155 | windowResize = new TResizeEvent(TResizeEvent.Type.SCREEN, | |
1156 | newWidth, newHeight); | |
1157 | queue.add(event); | |
7b5261bc | 1158 | } |
be72cb5c | 1159 | windowSizeTime = nowTime; |
7b5261bc KL |
1160 | } |
1161 | ||
a83fea2b KL |
1162 | // ESCDELAY type timeout |
1163 | if (state == ParseState.ESCAPE) { | |
be72cb5c | 1164 | long escDelay = nowTime - escapeTime; |
a83fea2b KL |
1165 | if (escDelay > 100) { |
1166 | // After 0.1 seconds, assume a true escape character | |
1167 | queue.add(controlChar((char)0x1B, false)); | |
42873e30 | 1168 | resetParser(); |
7b5261bc KL |
1169 | } |
1170 | } | |
b1589621 KL |
1171 | } |
1172 | ||
32437017 KL |
1173 | /** |
1174 | * Returns true if the CSI parameter for a keyboard command means that | |
1175 | * shift was down. | |
1176 | */ | |
1177 | private boolean csiIsShift(final String x) { | |
1178 | if ((x.equals("2")) | |
1179 | || (x.equals("4")) | |
1180 | || (x.equals("6")) | |
1181 | || (x.equals("8")) | |
1182 | ) { | |
1183 | return true; | |
1184 | } | |
1185 | return false; | |
1186 | } | |
1187 | ||
1188 | /** | |
1189 | * Returns true if the CSI parameter for a keyboard command means that | |
1190 | * alt was down. | |
1191 | */ | |
1192 | private boolean csiIsAlt(final String x) { | |
1193 | if ((x.equals("3")) | |
1194 | || (x.equals("4")) | |
1195 | || (x.equals("7")) | |
1196 | || (x.equals("8")) | |
1197 | ) { | |
1198 | return true; | |
1199 | } | |
1200 | return false; | |
1201 | } | |
1202 | ||
1203 | /** | |
1204 | * Returns true if the CSI parameter for a keyboard command means that | |
1205 | * ctrl was down. | |
1206 | */ | |
1207 | private boolean csiIsCtrl(final String x) { | |
1208 | if ((x.equals("5")) | |
1209 | || (x.equals("6")) | |
1210 | || (x.equals("7")) | |
1211 | || (x.equals("8")) | |
1212 | ) { | |
1213 | return true; | |
1214 | } | |
1215 | return false; | |
1216 | } | |
1217 | ||
b1589621 KL |
1218 | /** |
1219 | * Parses the next character of input to see if an InputEvent is | |
1220 | * fully here. | |
1221 | * | |
623a1bd1 | 1222 | * @param events list to append new events to |
05dbb28d | 1223 | * @param ch Unicode code point |
b1589621 | 1224 | */ |
7b5261bc KL |
1225 | private void processChar(final List<TInputEvent> events, final char ch) { |
1226 | ||
7b5261bc | 1227 | // ESCDELAY type timeout |
be72cb5c | 1228 | long nowTime = System.currentTimeMillis(); |
7b5261bc | 1229 | if (state == ParseState.ESCAPE) { |
be72cb5c | 1230 | long escDelay = nowTime - escapeTime; |
7b5261bc KL |
1231 | if (escDelay > 250) { |
1232 | // After 0.25 seconds, assume a true escape character | |
b299e69c | 1233 | events.add(controlChar((char)0x1B, false)); |
42873e30 | 1234 | resetParser(); |
7b5261bc KL |
1235 | } |
1236 | } | |
1237 | ||
b299e69c KL |
1238 | // TKeypress fields |
1239 | boolean ctrl = false; | |
1240 | boolean alt = false; | |
1241 | boolean shift = false; | |
b299e69c | 1242 | |
7b5261bc KL |
1243 | // System.err.printf("state: %s ch %c\r\n", state, ch); |
1244 | ||
1245 | switch (state) { | |
1246 | case GROUND: | |
1247 | ||
1248 | if (ch == 0x1B) { | |
1249 | state = ParseState.ESCAPE; | |
be72cb5c | 1250 | escapeTime = nowTime; |
7b5261bc KL |
1251 | return; |
1252 | } | |
1253 | ||
1254 | if (ch <= 0x1F) { | |
1255 | // Control character | |
b299e69c | 1256 | events.add(controlChar(ch, false)); |
42873e30 | 1257 | resetParser(); |
7b5261bc KL |
1258 | return; |
1259 | } | |
1260 | ||
1261 | if (ch >= 0x20) { | |
1262 | // Normal character | |
b299e69c KL |
1263 | events.add(new TKeypressEvent(false, 0, ch, |
1264 | false, false, false)); | |
42873e30 | 1265 | resetParser(); |
7b5261bc KL |
1266 | return; |
1267 | } | |
1268 | ||
1269 | break; | |
1270 | ||
1271 | case ESCAPE: | |
1272 | if (ch <= 0x1F) { | |
1273 | // ALT-Control character | |
b299e69c | 1274 | events.add(controlChar(ch, true)); |
42873e30 | 1275 | resetParser(); |
7b5261bc KL |
1276 | return; |
1277 | } | |
1278 | ||
1279 | if (ch == 'O') { | |
1280 | // This will be one of the function keys | |
1281 | state = ParseState.ESCAPE_INTERMEDIATE; | |
1282 | return; | |
1283 | } | |
1284 | ||
1285 | // '[' goes to CSI_ENTRY | |
1286 | if (ch == '[') { | |
1287 | state = ParseState.CSI_ENTRY; | |
1288 | return; | |
1289 | } | |
1290 | ||
1291 | // Everything else is assumed to be Alt-keystroke | |
7b5261bc | 1292 | if ((ch >= 'A') && (ch <= 'Z')) { |
b299e69c | 1293 | shift = true; |
7b5261bc | 1294 | } |
b299e69c KL |
1295 | alt = true; |
1296 | events.add(new TKeypressEvent(false, 0, ch, alt, ctrl, shift)); | |
42873e30 | 1297 | resetParser(); |
7b5261bc KL |
1298 | return; |
1299 | ||
1300 | case ESCAPE_INTERMEDIATE: | |
1301 | if ((ch >= 'P') && (ch <= 'S')) { | |
1302 | // Function key | |
7b5261bc KL |
1303 | switch (ch) { |
1304 | case 'P': | |
b299e69c | 1305 | events.add(new TKeypressEvent(kbF1)); |
7b5261bc KL |
1306 | break; |
1307 | case 'Q': | |
b299e69c | 1308 | events.add(new TKeypressEvent(kbF2)); |
7b5261bc KL |
1309 | break; |
1310 | case 'R': | |
b299e69c | 1311 | events.add(new TKeypressEvent(kbF3)); |
7b5261bc KL |
1312 | break; |
1313 | case 'S': | |
b299e69c | 1314 | events.add(new TKeypressEvent(kbF4)); |
7b5261bc KL |
1315 | break; |
1316 | default: | |
1317 | break; | |
1318 | } | |
42873e30 | 1319 | resetParser(); |
7b5261bc KL |
1320 | return; |
1321 | } | |
1322 | ||
1323 | // Unknown keystroke, ignore | |
42873e30 | 1324 | resetParser(); |
7b5261bc KL |
1325 | return; |
1326 | ||
1327 | case CSI_ENTRY: | |
1328 | // Numbers - parameter values | |
1329 | if ((ch >= '0') && (ch <= '9')) { | |
92554d64 KL |
1330 | params.set(params.size() - 1, |
1331 | params.get(params.size() - 1) + ch); | |
7b5261bc KL |
1332 | state = ParseState.CSI_PARAM; |
1333 | return; | |
1334 | } | |
1335 | // Parameter separator | |
1336 | if (ch == ';') { | |
a83fea2b | 1337 | params.add(""); |
7b5261bc KL |
1338 | return; |
1339 | } | |
1340 | ||
1341 | if ((ch >= 0x30) && (ch <= 0x7E)) { | |
1342 | switch (ch) { | |
1343 | case 'A': | |
1344 | // Up | |
b299e69c | 1345 | events.add(new TKeypressEvent(kbUp, alt, ctrl, shift)); |
42873e30 | 1346 | resetParser(); |
7b5261bc KL |
1347 | return; |
1348 | case 'B': | |
1349 | // Down | |
b299e69c | 1350 | events.add(new TKeypressEvent(kbDown, alt, ctrl, shift)); |
42873e30 | 1351 | resetParser(); |
7b5261bc KL |
1352 | return; |
1353 | case 'C': | |
1354 | // Right | |
b299e69c | 1355 | events.add(new TKeypressEvent(kbRight, alt, ctrl, shift)); |
42873e30 | 1356 | resetParser(); |
7b5261bc KL |
1357 | return; |
1358 | case 'D': | |
1359 | // Left | |
b299e69c | 1360 | events.add(new TKeypressEvent(kbLeft, alt, ctrl, shift)); |
42873e30 | 1361 | resetParser(); |
7b5261bc KL |
1362 | return; |
1363 | case 'H': | |
1364 | // Home | |
b299e69c | 1365 | events.add(new TKeypressEvent(kbHome)); |
42873e30 | 1366 | resetParser(); |
7b5261bc KL |
1367 | return; |
1368 | case 'F': | |
1369 | // End | |
b299e69c | 1370 | events.add(new TKeypressEvent(kbEnd)); |
42873e30 | 1371 | resetParser(); |
7b5261bc KL |
1372 | return; |
1373 | case 'Z': | |
1374 | // CBT - Cursor backward X tab stops (default 1) | |
b299e69c | 1375 | events.add(new TKeypressEvent(kbBackTab)); |
42873e30 | 1376 | resetParser(); |
7b5261bc KL |
1377 | return; |
1378 | case 'M': | |
1379 | // Mouse position | |
1380 | state = ParseState.MOUSE; | |
1381 | return; | |
b5f2a6db KL |
1382 | case '<': |
1383 | // Mouse position, SGR (1006) coordinates | |
1384 | state = ParseState.MOUSE_SGR; | |
1385 | return; | |
7b5261bc KL |
1386 | default: |
1387 | break; | |
1388 | } | |
1389 | } | |
1390 | ||
1391 | // Unknown keystroke, ignore | |
42873e30 | 1392 | resetParser(); |
7b5261bc KL |
1393 | return; |
1394 | ||
b5f2a6db KL |
1395 | case MOUSE_SGR: |
1396 | // Numbers - parameter values | |
1397 | if ((ch >= '0') && (ch <= '9')) { | |
1398 | params.set(params.size() - 1, | |
1399 | params.get(params.size() - 1) + ch); | |
1400 | return; | |
1401 | } | |
1402 | // Parameter separator | |
1403 | if (ch == ';') { | |
1404 | params.add(""); | |
1405 | return; | |
1406 | } | |
1407 | ||
1408 | switch (ch) { | |
1409 | case 'M': | |
1410 | // Generate a mouse press event | |
1411 | TInputEvent event = parseMouseSGR(false); | |
1412 | if (event != null) { | |
1413 | events.add(event); | |
1414 | } | |
42873e30 | 1415 | resetParser(); |
b5f2a6db KL |
1416 | return; |
1417 | case 'm': | |
1418 | // Generate a mouse release event | |
1419 | event = parseMouseSGR(true); | |
1420 | if (event != null) { | |
1421 | events.add(event); | |
1422 | } | |
42873e30 | 1423 | resetParser(); |
b5f2a6db KL |
1424 | return; |
1425 | default: | |
1426 | break; | |
1427 | } | |
1428 | ||
1429 | // Unknown keystroke, ignore | |
42873e30 | 1430 | resetParser(); |
b5f2a6db KL |
1431 | return; |
1432 | ||
7b5261bc KL |
1433 | case CSI_PARAM: |
1434 | // Numbers - parameter values | |
1435 | if ((ch >= '0') && (ch <= '9')) { | |
92554d64 KL |
1436 | params.set(params.size() - 1, |
1437 | params.get(params.size() - 1) + ch); | |
7b5261bc KL |
1438 | state = ParseState.CSI_PARAM; |
1439 | return; | |
1440 | } | |
1441 | // Parameter separator | |
1442 | if (ch == ';') { | |
92554d64 | 1443 | params.add(""); |
7b5261bc KL |
1444 | return; |
1445 | } | |
1446 | ||
1447 | if (ch == '~') { | |
1448 | events.add(csiFnKey()); | |
42873e30 | 1449 | resetParser(); |
7b5261bc KL |
1450 | return; |
1451 | } | |
1452 | ||
1453 | if ((ch >= 0x30) && (ch <= 0x7E)) { | |
1454 | switch (ch) { | |
1455 | case 'A': | |
1456 | // Up | |
7b5261bc | 1457 | if (params.size() > 1) { |
32437017 KL |
1458 | shift = csiIsShift(params.get(1)); |
1459 | alt = csiIsAlt(params.get(1)); | |
1460 | ctrl = csiIsCtrl(params.get(1)); | |
7b5261bc | 1461 | } |
b299e69c | 1462 | events.add(new TKeypressEvent(kbUp, alt, ctrl, shift)); |
42873e30 | 1463 | resetParser(); |
7b5261bc KL |
1464 | return; |
1465 | case 'B': | |
1466 | // Down | |
7b5261bc | 1467 | if (params.size() > 1) { |
32437017 KL |
1468 | shift = csiIsShift(params.get(1)); |
1469 | alt = csiIsAlt(params.get(1)); | |
1470 | ctrl = csiIsCtrl(params.get(1)); | |
7b5261bc | 1471 | } |
b299e69c | 1472 | events.add(new TKeypressEvent(kbDown, alt, ctrl, shift)); |
42873e30 | 1473 | resetParser(); |
7b5261bc KL |
1474 | return; |
1475 | case 'C': | |
1476 | // Right | |
7b5261bc | 1477 | if (params.size() > 1) { |
32437017 KL |
1478 | shift = csiIsShift(params.get(1)); |
1479 | alt = csiIsAlt(params.get(1)); | |
1480 | ctrl = csiIsCtrl(params.get(1)); | |
7b5261bc | 1481 | } |
b299e69c | 1482 | events.add(new TKeypressEvent(kbRight, alt, ctrl, shift)); |
42873e30 | 1483 | resetParser(); |
7b5261bc KL |
1484 | return; |
1485 | case 'D': | |
1486 | // Left | |
7b5261bc | 1487 | if (params.size() > 1) { |
32437017 KL |
1488 | shift = csiIsShift(params.get(1)); |
1489 | alt = csiIsAlt(params.get(1)); | |
1490 | ctrl = csiIsCtrl(params.get(1)); | |
7b5261bc | 1491 | } |
b299e69c | 1492 | events.add(new TKeypressEvent(kbLeft, alt, ctrl, shift)); |
42873e30 | 1493 | resetParser(); |
7b5261bc | 1494 | return; |
32437017 KL |
1495 | case 'H': |
1496 | // Home | |
1497 | if (params.size() > 1) { | |
1498 | shift = csiIsShift(params.get(1)); | |
1499 | alt = csiIsAlt(params.get(1)); | |
1500 | ctrl = csiIsCtrl(params.get(1)); | |
1501 | } | |
1502 | events.add(new TKeypressEvent(kbHome, alt, ctrl, shift)); | |
42873e30 | 1503 | resetParser(); |
32437017 KL |
1504 | return; |
1505 | case 'F': | |
1506 | // End | |
1507 | if (params.size() > 1) { | |
1508 | shift = csiIsShift(params.get(1)); | |
1509 | alt = csiIsAlt(params.get(1)); | |
1510 | ctrl = csiIsCtrl(params.get(1)); | |
1511 | } | |
1512 | events.add(new TKeypressEvent(kbEnd, alt, ctrl, shift)); | |
42873e30 | 1513 | resetParser(); |
32437017 | 1514 | return; |
7b5261bc KL |
1515 | default: |
1516 | break; | |
1517 | } | |
1518 | } | |
1519 | ||
1520 | // Unknown keystroke, ignore | |
42873e30 | 1521 | resetParser(); |
7b5261bc KL |
1522 | return; |
1523 | ||
1524 | case MOUSE: | |
92554d64 | 1525 | params.set(0, params.get(params.size() - 1) + ch); |
7b5261bc KL |
1526 | if (params.get(0).length() == 3) { |
1527 | // We have enough to generate a mouse event | |
1528 | events.add(parseMouse()); | |
42873e30 | 1529 | resetParser(); |
7b5261bc KL |
1530 | } |
1531 | return; | |
1532 | ||
1533 | default: | |
1534 | break; | |
1535 | } | |
1536 | ||
1537 | // This "should" be impossible to reach | |
1538 | return; | |
b1589621 KL |
1539 | } |
1540 | ||
1541 | /** | |
05dbb28d KL |
1542 | * Tell (u)xterm that we want alt- keystrokes to send escape + character |
1543 | * rather than set the 8th bit. Anyone who wants UTF8 should want this | |
1544 | * enabled. | |
b1589621 | 1545 | * |
05dbb28d KL |
1546 | * @param on if true, enable metaSendsEscape |
1547 | * @return the string to emit to xterm | |
b1589621 | 1548 | */ |
b5f2a6db | 1549 | private String xtermMetaSendsEscape(final boolean on) { |
7b5261bc KL |
1550 | if (on) { |
1551 | return "\033[?1036h\033[?1034l"; | |
1552 | } | |
1553 | return "\033[?1036l"; | |
b1589621 KL |
1554 | } |
1555 | ||
55d2b2c2 | 1556 | /** |
42873e30 | 1557 | * Create an xterm OSC sequence to change the window title. |
55d2b2c2 KL |
1558 | * |
1559 | * @param title the new title | |
1560 | * @return the string to emit to xterm | |
1561 | */ | |
42873e30 | 1562 | private String getSetTitleString(final String title) { |
55d2b2c2 KL |
1563 | return "\033]2;" + title + "\007"; |
1564 | } | |
1565 | ||
b1589621 | 1566 | /** |
42873e30 | 1567 | * Create a SGR parameter sequence for a single color change. |
b1589621 | 1568 | * |
15ea4d73 | 1569 | * @param bold if true, set bold |
05dbb28d KL |
1570 | * @param color one of the Color.WHITE, Color.BLUE, etc. constants |
1571 | * @param foreground if true, this is a foreground color | |
1572 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
1573 | * e.g. "\033[42m" | |
b1589621 | 1574 | */ |
42873e30 | 1575 | private String color(final boolean bold, final Color color, |
15ea4d73 KL |
1576 | final boolean foreground) { |
1577 | return color(color, foreground, true) + | |
1578 | rgbColor(bold, color, foreground); | |
1579 | } | |
1580 | ||
1581 | /** | |
1582 | * Create a T.416 RGB parameter sequence for a single color change. | |
1583 | * | |
1584 | * @param bold if true, set bold | |
1585 | * @param color one of the Color.WHITE, Color.BLUE, etc. constants | |
1586 | * @param foreground if true, this is a foreground color | |
1587 | * @return the string to emit to an xterm terminal with RGB support, | |
1588 | * e.g. "\033[38;2;RR;GG;BBm" | |
1589 | */ | |
1590 | private String rgbColor(final boolean bold, final Color color, | |
1591 | final boolean foreground) { | |
1592 | if (doRgbColor == false) { | |
1593 | return ""; | |
1594 | } | |
1595 | StringBuilder sb = new StringBuilder("\033["); | |
1596 | if (bold) { | |
1597 | // Bold implies foreground only | |
1598 | sb.append("38;2;"); | |
1599 | if (color.equals(Color.BLACK)) { | |
6ba187ac | 1600 | sb.append("84;84;84"); |
15ea4d73 | 1601 | } else if (color.equals(Color.RED)) { |
6ba187ac | 1602 | sb.append("252;84;84"); |
15ea4d73 | 1603 | } else if (color.equals(Color.GREEN)) { |
6ba187ac | 1604 | sb.append("84;252;84"); |
15ea4d73 | 1605 | } else if (color.equals(Color.YELLOW)) { |
6ba187ac | 1606 | sb.append("252;252;84"); |
15ea4d73 | 1607 | } else if (color.equals(Color.BLUE)) { |
6ba187ac | 1608 | sb.append("84;84;252"); |
15ea4d73 | 1609 | } else if (color.equals(Color.MAGENTA)) { |
6ba187ac | 1610 | sb.append("252;84;252"); |
15ea4d73 | 1611 | } else if (color.equals(Color.CYAN)) { |
6ba187ac | 1612 | sb.append("84;252;252"); |
15ea4d73 KL |
1613 | } else if (color.equals(Color.WHITE)) { |
1614 | sb.append("252;252;252"); | |
1615 | } | |
1616 | } else { | |
1617 | if (foreground) { | |
1618 | sb.append("38;2;"); | |
1619 | } else { | |
1620 | sb.append("48;2;"); | |
1621 | } | |
1622 | if (color.equals(Color.BLACK)) { | |
1623 | sb.append("0;0;0"); | |
1624 | } else if (color.equals(Color.RED)) { | |
1625 | sb.append("168;0;0"); | |
1626 | } else if (color.equals(Color.GREEN)) { | |
1627 | sb.append("0;168;0"); | |
1628 | } else if (color.equals(Color.YELLOW)) { | |
6ba187ac | 1629 | sb.append("168;84;0"); |
15ea4d73 KL |
1630 | } else if (color.equals(Color.BLUE)) { |
1631 | sb.append("0;0;168"); | |
1632 | } else if (color.equals(Color.MAGENTA)) { | |
1633 | sb.append("168;0;168"); | |
1634 | } else if (color.equals(Color.CYAN)) { | |
1635 | sb.append("0;168;168"); | |
1636 | } else if (color.equals(Color.WHITE)) { | |
1637 | sb.append("168;168;168"); | |
1638 | } | |
1639 | } | |
1640 | sb.append("m"); | |
1641 | return sb.toString(); | |
1642 | } | |
1643 | ||
1644 | /** | |
1645 | * Create a T.416 RGB parameter sequence for both foreground and | |
1646 | * background color change. | |
1647 | * | |
1648 | * @param bold if true, set bold | |
1649 | * @param foreColor one of the Color.WHITE, Color.BLUE, etc. constants | |
1650 | * @param backColor one of the Color.WHITE, Color.BLUE, etc. constants | |
1651 | * @return the string to emit to an xterm terminal with RGB support, | |
1652 | * e.g. "\033[38;2;RR;GG;BB;48;2;RR;GG;BBm" | |
1653 | */ | |
1654 | private String rgbColor(final boolean bold, final Color foreColor, | |
1655 | final Color backColor) { | |
1656 | if (doRgbColor == false) { | |
1657 | return ""; | |
1658 | } | |
1659 | ||
1660 | return rgbColor(bold, foreColor, true) + | |
1661 | rgbColor(false, backColor, false); | |
b1589621 KL |
1662 | } |
1663 | ||
1664 | /** | |
1665 | * Create a SGR parameter sequence for a single color change. | |
1666 | * | |
05dbb28d KL |
1667 | * @param color one of the Color.WHITE, Color.BLUE, etc. constants |
1668 | * @param foreground if true, this is a foreground color | |
1669 | * @param header if true, make the full header, otherwise just emit the | |
1670 | * color parameter e.g. "42;" | |
1671 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
1672 | * e.g. "\033[42m" | |
b1589621 | 1673 | */ |
b5f2a6db | 1674 | private String color(final Color color, final boolean foreground, |
7b5261bc KL |
1675 | final boolean header) { |
1676 | ||
1677 | int ecmaColor = color.getValue(); | |
1678 | ||
1679 | // Convert Color.* values to SGR numerics | |
1680 | if (foreground) { | |
1681 | ecmaColor += 30; | |
1682 | } else { | |
1683 | ecmaColor += 40; | |
1684 | } | |
1685 | ||
1686 | if (header) { | |
1687 | return String.format("\033[%dm", ecmaColor); | |
1688 | } else { | |
1689 | return String.format("%d;", ecmaColor); | |
1690 | } | |
b1589621 KL |
1691 | } |
1692 | ||
1693 | /** | |
b5f2a6db | 1694 | * Create a SGR parameter sequence for both foreground and background |
42873e30 | 1695 | * color change. |
b1589621 | 1696 | * |
15ea4d73 | 1697 | * @param bold if true, set bold |
05dbb28d KL |
1698 | * @param foreColor one of the Color.WHITE, Color.BLUE, etc. constants |
1699 | * @param backColor one of the Color.WHITE, Color.BLUE, etc. constants | |
1700 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
1701 | * e.g. "\033[31;42m" | |
b1589621 | 1702 | */ |
42873e30 | 1703 | private String color(final boolean bold, final Color foreColor, |
15ea4d73 KL |
1704 | final Color backColor) { |
1705 | return color(foreColor, backColor, true) + | |
1706 | rgbColor(bold, foreColor, backColor); | |
b1589621 KL |
1707 | } |
1708 | ||
1709 | /** | |
1710 | * Create a SGR parameter sequence for both foreground and | |
1711 | * background color change. | |
1712 | * | |
05dbb28d KL |
1713 | * @param foreColor one of the Color.WHITE, Color.BLUE, etc. constants |
1714 | * @param backColor one of the Color.WHITE, Color.BLUE, etc. constants | |
1715 | * @param header if true, make the full header, otherwise just emit the | |
1716 | * color parameter e.g. "31;42;" | |
1717 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
1718 | * e.g. "\033[31;42m" | |
b1589621 | 1719 | */ |
b5f2a6db | 1720 | private String color(final Color foreColor, final Color backColor, |
7b5261bc | 1721 | final boolean header) { |
b1589621 | 1722 | |
7b5261bc KL |
1723 | int ecmaForeColor = foreColor.getValue(); |
1724 | int ecmaBackColor = backColor.getValue(); | |
b1589621 | 1725 | |
7b5261bc KL |
1726 | // Convert Color.* values to SGR numerics |
1727 | ecmaBackColor += 40; | |
1728 | ecmaForeColor += 30; | |
b1589621 | 1729 | |
7b5261bc KL |
1730 | if (header) { |
1731 | return String.format("\033[%d;%dm", ecmaForeColor, ecmaBackColor); | |
1732 | } else { | |
1733 | return String.format("%d;%d;", ecmaForeColor, ecmaBackColor); | |
1734 | } | |
b1589621 KL |
1735 | } |
1736 | ||
1737 | /** | |
1738 | * Create a SGR parameter sequence for foreground, background, and | |
05dbb28d | 1739 | * several attributes. This sequence first resets all attributes to |
42873e30 | 1740 | * default, then sets attributes as per the parameters. |
b1589621 | 1741 | * |
05dbb28d KL |
1742 | * @param foreColor one of the Color.WHITE, Color.BLUE, etc. constants |
1743 | * @param backColor one of the Color.WHITE, Color.BLUE, etc. constants | |
1744 | * @param bold if true, set bold | |
1745 | * @param reverse if true, set reverse | |
1746 | * @param blink if true, set blink | |
1747 | * @param underline if true, set underline | |
1748 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
1749 | * e.g. "\033[0;1;31;42m" | |
b1589621 | 1750 | */ |
42873e30 | 1751 | private String color(final Color foreColor, final Color backColor, |
7b5261bc KL |
1752 | final boolean bold, final boolean reverse, final boolean blink, |
1753 | final boolean underline) { | |
1754 | ||
1755 | int ecmaForeColor = foreColor.getValue(); | |
1756 | int ecmaBackColor = backColor.getValue(); | |
1757 | ||
1758 | // Convert Color.* values to SGR numerics | |
1759 | ecmaBackColor += 40; | |
1760 | ecmaForeColor += 30; | |
1761 | ||
1762 | StringBuilder sb = new StringBuilder(); | |
1763 | if ( bold && reverse && blink && !underline ) { | |
1764 | sb.append("\033[0;1;7;5;"); | |
1765 | } else if ( bold && reverse && !blink && !underline ) { | |
1766 | sb.append("\033[0;1;7;"); | |
1767 | } else if ( !bold && reverse && blink && !underline ) { | |
1768 | sb.append("\033[0;7;5;"); | |
1769 | } else if ( bold && !reverse && blink && !underline ) { | |
1770 | sb.append("\033[0;1;5;"); | |
1771 | } else if ( bold && !reverse && !blink && !underline ) { | |
1772 | sb.append("\033[0;1;"); | |
1773 | } else if ( !bold && reverse && !blink && !underline ) { | |
1774 | sb.append("\033[0;7;"); | |
1775 | } else if ( !bold && !reverse && blink && !underline) { | |
1776 | sb.append("\033[0;5;"); | |
1777 | } else if ( bold && reverse && blink && underline ) { | |
1778 | sb.append("\033[0;1;7;5;4;"); | |
1779 | } else if ( bold && reverse && !blink && underline ) { | |
1780 | sb.append("\033[0;1;7;4;"); | |
1781 | } else if ( !bold && reverse && blink && underline ) { | |
1782 | sb.append("\033[0;7;5;4;"); | |
1783 | } else if ( bold && !reverse && blink && underline ) { | |
1784 | sb.append("\033[0;1;5;4;"); | |
1785 | } else if ( bold && !reverse && !blink && underline ) { | |
1786 | sb.append("\033[0;1;4;"); | |
1787 | } else if ( !bold && reverse && !blink && underline ) { | |
1788 | sb.append("\033[0;7;4;"); | |
1789 | } else if ( !bold && !reverse && blink && underline) { | |
1790 | sb.append("\033[0;5;4;"); | |
1791 | } else if ( !bold && !reverse && !blink && underline) { | |
1792 | sb.append("\033[0;4;"); | |
1793 | } else { | |
1794 | assert (!bold && !reverse && !blink && !underline); | |
1795 | sb.append("\033[0;"); | |
1796 | } | |
1797 | sb.append(String.format("%d;%dm", ecmaForeColor, ecmaBackColor)); | |
8a632d71 KL |
1798 | sb.append(rgbColor(bold, foreColor, backColor)); |
1799 | return sb.toString(); | |
b1589621 KL |
1800 | } |
1801 | ||
b1589621 | 1802 | /** |
42873e30 | 1803 | * Create a SGR parameter sequence to reset to defaults. |
b1589621 | 1804 | * |
05dbb28d KL |
1805 | * @return the string to emit to an ANSI / ECMA-style terminal, |
1806 | * e.g. "\033[0m" | |
b1589621 | 1807 | */ |
42873e30 | 1808 | private String normal() { |
8a632d71 | 1809 | return normal(true) + rgbColor(false, Color.WHITE, Color.BLACK); |
b1589621 KL |
1810 | } |
1811 | ||
1812 | /** | |
1813 | * Create a SGR parameter sequence to reset to defaults. | |
1814 | * | |
05dbb28d KL |
1815 | * @param header if true, make the full header, otherwise just emit the |
1816 | * bare parameter e.g. "0;" | |
1817 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
1818 | * e.g. "\033[0m" | |
b1589621 | 1819 | */ |
b5f2a6db | 1820 | private String normal(final boolean header) { |
7b5261bc KL |
1821 | if (header) { |
1822 | return "\033[0;37;40m"; | |
1823 | } | |
1824 | return "0;37;40"; | |
b1589621 KL |
1825 | } |
1826 | ||
b1589621 | 1827 | /** |
42873e30 | 1828 | * Create a SGR parameter sequence for enabling the visible cursor. |
b1589621 | 1829 | * |
05dbb28d KL |
1830 | * @param on if true, turn on cursor |
1831 | * @return the string to emit to an ANSI / ECMA-style terminal | |
b1589621 | 1832 | */ |
42873e30 | 1833 | private String cursor(final boolean on) { |
7b5261bc KL |
1834 | if (on && !cursorOn) { |
1835 | cursorOn = true; | |
1836 | return "\033[?25h"; | |
1837 | } | |
1838 | if (!on && cursorOn) { | |
1839 | cursorOn = false; | |
1840 | return "\033[?25l"; | |
1841 | } | |
1842 | return ""; | |
b1589621 KL |
1843 | } |
1844 | ||
1845 | /** | |
1846 | * Clear the entire screen. Because some terminals use back-color-erase, | |
1847 | * set the color to white-on-black beforehand. | |
1848 | * | |
05dbb28d | 1849 | * @return the string to emit to an ANSI / ECMA-style terminal |
b1589621 | 1850 | */ |
42873e30 | 1851 | private String clearAll() { |
7b5261bc | 1852 | return "\033[0;37;40m\033[2J"; |
b1589621 KL |
1853 | } |
1854 | ||
1855 | /** | |
1856 | * Clear the line from the cursor (inclusive) to the end of the screen. | |
1857 | * Because some terminals use back-color-erase, set the color to | |
42873e30 | 1858 | * white-on-black beforehand. |
b1589621 | 1859 | * |
05dbb28d | 1860 | * @return the string to emit to an ANSI / ECMA-style terminal |
b1589621 | 1861 | */ |
42873e30 | 1862 | private String clearRemainingLine() { |
7b5261bc | 1863 | return "\033[0;37;40m\033[K"; |
b1589621 KL |
1864 | } |
1865 | ||
b1589621 | 1866 | /** |
42873e30 | 1867 | * Move the cursor to (x, y). |
b1589621 | 1868 | * |
05dbb28d KL |
1869 | * @param x column coordinate. 0 is the left-most column. |
1870 | * @param y row coordinate. 0 is the top-most row. | |
1871 | * @return the string to emit to an ANSI / ECMA-style terminal | |
b1589621 | 1872 | */ |
42873e30 | 1873 | private String gotoXY(final int x, final int y) { |
7b5261bc | 1874 | return String.format("\033[%d;%dH", y + 1, x + 1); |
b1589621 KL |
1875 | } |
1876 | ||
1877 | /** | |
05dbb28d | 1878 | * Tell (u)xterm that we want to receive mouse events based on "Any event |
b5f2a6db KL |
1879 | * tracking", UTF-8 coordinates, and then SGR coordinates. Ideally we |
1880 | * will end up with SGR coordinates with UTF-8 coordinates as a fallback. | |
1881 | * See | |
b1589621 KL |
1882 | * http://invisible-island.net/xterm/ctlseqs/ctlseqs.html#Mouse%20Tracking |
1883 | * | |
05dbb28d | 1884 | * Note that this also sets the alternate/primary screen buffer. |
b1589621 | 1885 | * |
05dbb28d KL |
1886 | * @param on If true, enable mouse report and use the alternate screen |
1887 | * buffer. If false disable mouse reporting and use the primary screen | |
1888 | * buffer. | |
1889 | * @return the string to emit to xterm | |
b1589621 | 1890 | */ |
b5f2a6db | 1891 | private String mouse(final boolean on) { |
7b5261bc | 1892 | if (on) { |
32437017 | 1893 | return "\033[?1002;1003;1005;1006h\033[?1049h"; |
7b5261bc | 1894 | } |
32437017 | 1895 | return "\033[?1002;1003;1006;1005l\033[?1049l"; |
b1589621 KL |
1896 | } |
1897 | ||
4328bb42 KL |
1898 | /** |
1899 | * Read function runs on a separate thread. | |
1900 | */ | |
1901 | public void run() { | |
7b5261bc KL |
1902 | boolean done = false; |
1903 | // available() will often return > 1, so we need to read in chunks to | |
1904 | // stay caught up. | |
1905 | char [] readBuffer = new char[128]; | |
1906 | List<TInputEvent> events = new LinkedList<TInputEvent>(); | |
1907 | ||
1908 | while (!done && !stopReaderThread) { | |
1909 | try { | |
1910 | // We assume that if inputStream has bytes available, then | |
1911 | // input won't block on read(). | |
1912 | int n = inputStream.available(); | |
85c07c5e KL |
1913 | |
1914 | /* | |
1915 | System.err.printf("inputStream.available(): %d\n", n); | |
1916 | System.err.flush(); | |
1917 | */ | |
1918 | ||
7b5261bc KL |
1919 | if (n > 0) { |
1920 | if (readBuffer.length < n) { | |
1921 | // The buffer wasn't big enough, make it huger | |
1922 | readBuffer = new char[readBuffer.length * 2]; | |
1923 | } | |
1924 | ||
85c07c5e KL |
1925 | // System.err.printf("BEFORE read()\n"); System.err.flush(); |
1926 | ||
bb35d919 | 1927 | int rc = input.read(readBuffer, 0, readBuffer.length); |
85c07c5e KL |
1928 | |
1929 | /* | |
1930 | System.err.printf("AFTER read() %d\n", rc); | |
1931 | System.err.flush(); | |
1932 | */ | |
1933 | ||
7b5261bc KL |
1934 | if (rc == -1) { |
1935 | // This is EOF | |
1936 | done = true; | |
1937 | } else { | |
1938 | for (int i = 0; i < rc; i++) { | |
1939 | int ch = readBuffer[i]; | |
1940 | processChar(events, (char)ch); | |
9b1afdde KL |
1941 | } |
1942 | getIdleEvents(events); | |
1943 | if (events.size() > 0) { | |
1944 | // Add to the queue for the backend thread to | |
1945 | // be able to obtain. | |
1946 | synchronized (eventQueue) { | |
1947 | eventQueue.addAll(events); | |
1948 | } | |
3e074355 KL |
1949 | if (listener != null) { |
1950 | synchronized (listener) { | |
1951 | listener.notifyAll(); | |
1952 | } | |
7b5261bc | 1953 | } |
9b1afdde | 1954 | events.clear(); |
7b5261bc KL |
1955 | } |
1956 | } | |
1957 | } else { | |
a83fea2b KL |
1958 | getIdleEvents(events); |
1959 | if (events.size() > 0) { | |
1960 | synchronized (eventQueue) { | |
1961 | eventQueue.addAll(events); | |
1962 | } | |
3e074355 KL |
1963 | if (listener != null) { |
1964 | synchronized (listener) { | |
1965 | listener.notifyAll(); | |
1966 | } | |
92554d64 | 1967 | } |
85c07c5e | 1968 | events.clear(); |
a83fea2b KL |
1969 | } |
1970 | ||
85c07c5e KL |
1971 | // Wait 20 millis for more data |
1972 | Thread.sleep(20); | |
7b5261bc KL |
1973 | } |
1974 | // System.err.println("end while loop"); System.err.flush(); | |
1975 | } catch (InterruptedException e) { | |
1976 | // SQUASH | |
1977 | } catch (IOException e) { | |
1978 | e.printStackTrace(); | |
1979 | done = true; | |
1980 | } | |
1981 | } // while ((done == false) && (stopReaderThread == false)) | |
1982 | // System.err.println("*** run() exiting..."); System.err.flush(); | |
4328bb42 KL |
1983 | } |
1984 | ||
b1589621 | 1985 | } |