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Revamp SSH authentication code so that user interaction is more
[u/mdw/putty] / macosx / osxwin.m
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1ddda1ca 1/*
2 * osxwin.m: code to manage a session window in Mac OS X PuTTY.
3 */
4
5#import <Cocoa/Cocoa.h>
6#include "putty.h"
7#include "terminal.h"
8#include "osxclass.h"
9
10/* Colours come in two flavours: configurable, and xterm-extended. */
11#define NCFGCOLOURS (lenof(((Config *)0)->colours))
12#define NEXTCOLOURS 240 /* 216 colour-cube plus 24 shades of grey */
13#define NALLCOLOURS (NCFGCOLOURS + NEXTCOLOURS)
14
15/*
16 * The key component of the per-session data is the SessionWindow
17 * class. A pointer to this is used as the frontend handle, to be
18 * passed to all the platform-independent subsystems that require
19 * one.
20 */
21
22@interface TerminalView : NSImageView
23{
24 NSFont *font;
25 NSImage *image;
26 Terminal *term;
27 Config cfg;
28 NSColor *colours[NALLCOLOURS];
29 float fw, fasc, fdesc, fh;
30}
31- (void)drawStartFinish:(BOOL)start;
32- (void)setColour:(int)n r:(float)r g:(float)g b:(float)b;
33- (void)doText:(wchar_t *)text len:(int)len x:(int)x y:(int)y
34 attr:(unsigned long)attr lattr:(int)lattr;
35@end
36
37@implementation TerminalView
38- (BOOL)isFlipped
39{
40 return YES;
41}
42- (id)initWithTerminal:(Terminal *)aTerm config:(Config)aCfg
43{
44 float w, h;
45
46 self = [self initWithFrame:NSMakeRect(0,0,100,100)];
47
48 term = aTerm;
49 cfg = aCfg;
50
51 /*
52 * Initialise the fonts we're going to use.
53 *
54 * FIXME: for the moment I'm sticking with exactly one default font.
55 */
56 font = [NSFont userFixedPitchFontOfSize:0];
57
58 /*
59 * Now determine the size of the primary font.
60 *
61 * FIXME: If we have multiple fonts, we may need to set fasc
62 * and fdesc to the _maximum_ asc and desc out of all the
63 * fonts, _before_ adding them together to get fh.
64 */
65 fw = [font widthOfString:@"A"];
66 fasc = [font ascender];
67 fdesc = -[font descender];
68 fh = fasc + fdesc;
69 fh = (int)fh + (fh > (int)fh); /* round up, ickily */
70
71 /*
72 * Use this to figure out the size of the terminal view.
73 */
74 w = fw * term->cols;
75 h = fh * term->rows;
76
77 /*
78 * And set our size and subimage.
79 */
80 image = [[NSImage alloc] initWithSize:NSMakeSize(w,h)];
81 [image setFlipped:YES];
82 [self setImage:image];
83 [self setFrame:NSMakeRect(0,0,w,h)];
84
85 term_invalidate(term);
86
87 return self;
88}
89- (void)drawStartFinish:(BOOL)start
90{
91 if (start)
92 [image lockFocus];
93 else
94 [image unlockFocus];
95}
96- (void)doText:(wchar_t *)text len:(int)len x:(int)x y:(int)y
97 attr:(unsigned long)attr lattr:(int)lattr
98{
99 int nfg, nbg, rlen, widefactor;
100 float ox, oy, tw, th;
101 NSDictionary *attrdict;
102
103 /* FIXME: TATTR_COMBINING */
104
105 nfg = ((attr & ATTR_FGMASK) >> ATTR_FGSHIFT);
106 nbg = ((attr & ATTR_BGMASK) >> ATTR_BGSHIFT);
107 if (attr & ATTR_REVERSE) {
108 int t = nfg;
109 nfg = nbg;
110 nbg = t;
111 }
112 if (cfg.bold_colour && (attr & ATTR_BOLD)) {
113 if (nfg < 16) nfg |= 8;
114 else if (nfg >= 256) nfg |= 1;
115 }
116 if (cfg.bold_colour && (attr & ATTR_BLINK)) {
117 if (nbg < 16) nbg |= 8;
118 else if (nbg >= 256) nbg |= 1;
119 }
120 if (attr & TATTR_ACTCURS) {
121 nfg = 260;
122 nbg = 261;
123 }
124
125 if (attr & ATTR_WIDE) {
126 widefactor = 2;
127 /* FIXME: what do we actually have to do about wide characters? */
128 } else {
129 widefactor = 1;
130 }
131
132 /* FIXME: ATTR_BOLD without cfg.bold_colour */
133
134 if ((lattr & LATTR_MODE) != LATTR_NORM) {
135 x *= 2;
136 if (x >= term->cols)
137 return;
138 if (x + len*2*widefactor > term->cols)
139 len = (term->cols-x)/2/widefactor;/* trim to LH half */
140 rlen = len * 2;
141 } else
142 rlen = len;
143
144 /* FIXME: how do we actually implement double-{width,height} lattrs? */
145
146 ox = x * fw;
147 oy = y * fh;
148 tw = rlen * widefactor * fw;
149 th = fh;
150
151 /*
152 * Set the clipping rectangle.
153 */
154 [[NSGraphicsContext currentContext] saveGraphicsState];
155 [NSBezierPath clipRect:NSMakeRect(ox, oy, tw, th)];
156
157 attrdict = [NSDictionary dictionaryWithObjectsAndKeys:
158 colours[nfg], NSForegroundColorAttributeName,
159 colours[nbg], NSBackgroundColorAttributeName,
160 font, NSFontAttributeName, nil];
161
162 /*
163 * Create an NSString and draw it.
164 *
165 * Annoyingly, although our input is wchar_t which is four
166 * bytes wide on OS X and terminal.c supports 32-bit Unicode,
167 * we must convert into the two-byte type `unichar' to store in
168 * NSString, so we lose display capability for extra-BMP stuff
169 * at this point.
170 */
171 {
172 NSString *string;
173 unichar *utext;
174 int i;
175
176 utext = snewn(len, unichar);
177 for (i = 0; i < len; i++)
178 utext[i] = (text[i] >= 0x10000 ? 0xFFFD : text[i]);
179
180 string = [NSString stringWithCharacters:utext length:len];
181 [string drawAtPoint:NSMakePoint(ox, oy) withAttributes:attrdict];
182
183 sfree(utext);
184 }
185
186 /*
187 * Restore the graphics state from before the clipRect: call.
188 */
189 [[NSGraphicsContext currentContext] restoreGraphicsState];
190
191 /*
192 * And flag this area as needing display.
193 */
194 [self setNeedsDisplayInRect:NSMakeRect(ox, oy, tw, th)];
195}
196
197- (void)setColour:(int)n r:(float)r g:(float)g b:(float)b
198{
199 assert(n >= 0 && n < lenof(colours));
200 colours[n] = [[NSColor colorWithDeviceRed:r green:g blue:b alpha:1.0]
201 retain];
202}
203@end
204
205@implementation SessionWindow
206- (id)initWithConfig:(Config)aCfg
207{
208 NSRect rect = { {0,0}, {0,0} };
209
3d9449a1 210 alert_ctx = NULL;
211
1ddda1ca 212 cfg = aCfg; /* structure copy */
213
214 init_ucs(&ucsdata, cfg.line_codepage, cfg.utf8_override,
215 CS_UTF8, cfg.vtmode);
216 term = term_init(&cfg, &ucsdata, self);
217 logctx = log_init(self, &cfg);
218 term_provide_logctx(term, logctx);
219 term_size(term, cfg.height, cfg.width, cfg.savelines);
220
221 termview = [[[TerminalView alloc] initWithTerminal:term config:cfg]
222 autorelease];
223
224 /*
225 * Now work out the size of the window.
226 */
227 rect = [termview frame];
228 rect.origin = NSMakePoint(0,0);
229 rect.size.width += 2 * cfg.window_border;
230 rect.size.height += 2 * cfg.window_border;
231
232 /*
233 * Set up a backend.
234 */
235 {
236 int i;
237 back = &pty_backend;
238 for (i = 0; backends[i].backend != NULL; i++)
239 if (backends[i].protocol == cfg.protocol) {
240 back = backends[i].backend;
241 break;
242 }
243 }
244
245 {
246 const char *error;
247 char *realhost = NULL;
248 error = back->init(self, &backhandle, &cfg, cfg.host, cfg.port,
249 &realhost, cfg.tcp_nodelay, cfg.tcp_keepalives);
250 if (error) {
251 fatalbox("%s\n", error); /* FIXME: connection_fatal at worst */
252 }
253
254 if (realhost)
255 sfree(realhost); /* FIXME: do something with this */
256 }
919baedb 257 back->provide_logctx(backhandle, logctx);
1ddda1ca 258
259 /*
260 * Create a line discipline. (This must be done after creating
261 * the terminal _and_ the backend, since it needs to be passed
262 * pointers to both.)
263 */
264 ldisc = ldisc_create(&cfg, term, back, backhandle, self);
265
266 /*
267 * FIXME: Set up a scrollbar.
268 */
269
270 self = [super initWithContentRect:rect
271 styleMask:(NSTitledWindowMask | NSMiniaturizableWindowMask |
272 NSClosableWindowMask)
273 backing:NSBackingStoreBuffered
274 defer:YES];
275 [self setTitle:@"PuTTY"];
276
277 [self setIgnoresMouseEvents:NO];
278
279 /*
280 * Put the terminal view in the window.
281 */
282 rect = [termview frame];
283 rect.origin = NSMakePoint(cfg.window_border, cfg.window_border);
284 [termview setFrame:rect];
285 [[self contentView] addSubview:termview];
286
287 /*
288 * Set up the colour palette.
289 */
290 palette_reset(self);
291
292 /*
293 * FIXME: Only the _first_ document window should be centred.
294 * The subsequent ones should appear down and to the right of
295 * it, probably using the cascade function provided by Cocoa.
296 * Also we're apparently required by the HIG to remember and
297 * reuse previous positions of windows, although I'm not sure
298 * how that works if the user opens more than one of the same
299 * session type.
300 */
301 [self center]; /* :-) */
302
ec5da310 303 exited = FALSE;
304
1ddda1ca 305 return self;
306}
307
308- (void)dealloc
309{
310 /*
311 * FIXME: Here we must deallocate all sorts of stuff: the
312 * terminal, the backend, the ldisc, the logctx, you name it.
313 * Do so.
314 */
3d9449a1 315 sfree(alert_ctx);
ec5da310 316 if (back)
317 back->free(backhandle);
318 if (ldisc)
319 ldisc_free(ldisc);
2ac5ea1e 320 /* ldisc must be freed before term, since ldisc_free expects term
321 * still to be around. */
322 if (logctx)
323 log_free(logctx);
324 if (term)
325 term_free(term);
1ddda1ca 326 [super dealloc];
327}
328
329- (void)drawStartFinish:(BOOL)start
330{
331 [termview drawStartFinish:start];
332}
333
334- (void)setColour:(int)n r:(float)r g:(float)g b:(float)b
335{
336 [termview setColour:n r:r g:g b:b];
337}
338
339- (void)doText:(wchar_t *)text len:(int)len x:(int)x y:(int)y
340 attr:(unsigned long)attr lattr:(int)lattr
341{
342 /* Pass this straight on to the TerminalView. */
343 [termview doText:text len:len x:x y:y attr:attr lattr:lattr];
344}
345
346- (Config *)cfg
347{
348 return &cfg;
349}
350
351- (void)keyDown:(NSEvent *)ev
352{
353 NSString *s = [ev characters];
354 int i;
355 int n = [s length], c = [s characterAtIndex:0], m = [ev modifierFlags];
356 int cm = [[ev charactersIgnoringModifiers] characterAtIndex:0];
357 wchar_t output[32];
358 char coutput[32];
359 int use_coutput = FALSE, special = FALSE, start, end;
360
ec5da310 361//printf("n=%d c=U+%04x cm=U+%04x m=%08x\n", n, c, cm, m);
1ddda1ca 362
363 /*
364 * FIXME: Alt+numberpad codes.
365 */
366
367 /*
368 * Shift and Ctrl with PageUp/PageDown for scrollback.
369 */
370 if (n == 1 && c == NSPageUpFunctionKey && (m & NSShiftKeyMask)) {
371 term_scroll(term, 0, -term->rows/2);
372 return;
373 }
374 if (n == 1 && c == NSPageUpFunctionKey && (m & NSControlKeyMask)) {
375 term_scroll(term, 0, -1);
376 return;
377 }
378 if (n == 1 && c == NSPageDownFunctionKey && (m & NSShiftKeyMask)) {
379 term_scroll(term, 0, +term->rows/2);
380 return;
381 }
382 if (n == 1 && c == NSPageDownFunctionKey && (m & NSControlKeyMask)) {
383 term_scroll(term, 0, +1);
384 return;
385 }
386
387 /*
388 * FIXME: Shift-Ins for paste? Or is that not Maccy enough?
389 */
390
391 /*
392 * FIXME: Alt (Option? Command?) prefix in general.
393 *
394 * (Note that Alt-Shift-thing will work just by looking at
395 * charactersIgnoringModifiers; but Alt-Ctrl-thing will need
396 * processing properly, and Alt-as-in-Option won't happen at
397 * all. Hmmm.)
398 *
399 * (Note also that we need to be able to override menu key
400 * equivalents before this is particularly useful.)
401 */
402 start = 1;
403 end = start;
404
405 /*
406 * Ctrl-` is the same as Ctrl-\, unless we already have a
407 * better idea.
408 */
409 if ((m & NSControlKeyMask) && n == 1 && cm == '`' && c == '`') {
410 output[1] = '\x1c';
411 end = 2;
412 }
413
414 /* We handle Return ourselves, because it needs to be flagged as
415 * special to ldisc. */
416 if (n == 1 && c == '\015') {
417 coutput[1] = '\015';
418 use_coutput = TRUE;
419 end = 2;
420 special = TRUE;
421 }
422
423 /* Control-Shift-Space is 160 (ISO8859 nonbreaking space) */
424 if (n == 1 && (m & NSControlKeyMask) && (m & NSShiftKeyMask) &&
425 cm == ' ') {
426 output[1] = '\240';
427 end = 2;
428 }
429
430 /* Control-2, Control-Space and Control-@ are all NUL. */
431 if ((m & NSControlKeyMask) && n == 1 &&
432 (cm == '2' || cm == '@' || cm == ' ') && c == cm) {
433 output[1] = '\0';
434 end = 2;
435 }
436
437 /* We don't let MacOS tell us what Backspace is! We know better. */
438 if (cm == 0x7F && !(m & NSShiftKeyMask)) {
439 coutput[1] = cfg.bksp_is_delete ? '\x7F' : '\x08';
440 end = 2;
441 use_coutput = special = TRUE;
442 }
443 /* For Shift Backspace, do opposite of what is configured. */
444 if (cm == 0x7F && (m & NSShiftKeyMask)) {
445 coutput[1] = cfg.bksp_is_delete ? '\x08' : '\x7F';
446 end = 2;
447 use_coutput = special = TRUE;
448 }
449
450 /* Shift-Tab is ESC [ Z. Oddly, this combination generates ^Y by
451 * default on MacOS! */
452 if (cm == 0x19 && (m & NSShiftKeyMask) && !(m & NSControlKeyMask)) {
453 end = 1;
454 output[end++] = '\033';
455 output[end++] = '[';
456 output[end++] = 'Z';
457 }
458
459 /*
460 * NetHack keypad mode.
461 */
462 if (cfg.nethack_keypad && (m & NSNumericPadKeyMask)) {
463 wchar_t *keys = NULL;
464 switch (cm) {
465 case '1': keys = L"bB"; break;
466 case '2': keys = L"jJ"; break;
467 case '3': keys = L"nN"; break;
468 case '4': keys = L"hH"; break;
469 case '5': keys = L".."; break;
470 case '6': keys = L"lL"; break;
471 case '7': keys = L"yY"; break;
472 case '8': keys = L"kK"; break;
473 case '9': keys = L"uU"; break;
474 }
475 if (keys) {
476 end = 2;
477 if (m & NSShiftKeyMask)
478 output[1] = keys[1];
479 else
480 output[1] = keys[0];
481 goto done;
482 }
483 }
484
485 /*
486 * Application keypad mode.
487 */
488 if (term->app_keypad_keys && !cfg.no_applic_k &&
489 (m & NSNumericPadKeyMask)) {
490 int xkey = 0;
491 switch (cm) {
492 case NSClearLineFunctionKey: xkey = 'P'; break;
493 case '=': xkey = 'Q'; break;
494 case '/': xkey = 'R'; break;
495 case '*': xkey = 'S'; break;
496 /*
497 * FIXME: keypad - and + need to be mapped to ESC O l
498 * and ESC O k, or ESC O l and ESC O m, depending on
499 * xterm function key mode, and I can't remember which
500 * goes where.
501 */
502 case '\003': xkey = 'M'; break;
503 case '0': xkey = 'p'; break;
504 case '1': xkey = 'q'; break;
505 case '2': xkey = 'r'; break;
506 case '3': xkey = 's'; break;
507 case '4': xkey = 't'; break;
508 case '5': xkey = 'u'; break;
509 case '6': xkey = 'v'; break;
510 case '7': xkey = 'w'; break;
511 case '8': xkey = 'x'; break;
512 case '9': xkey = 'y'; break;
513 case '.': xkey = 'n'; break;
514 }
515 if (xkey) {
516 if (term->vt52_mode) {
517 if (xkey >= 'P' && xkey <= 'S') {
518 output[end++] = '\033';
519 output[end++] = xkey;
520 } else {
521 output[end++] = '\033';
522 output[end++] = '?';
523 output[end++] = xkey;
524 }
525 } else {
526 output[end++] = '\033';
527 output[end++] = 'O';
528 output[end++] = xkey;
529 }
530 goto done;
531 }
532 }
533
534 /*
535 * Next, all the keys that do tilde codes. (ESC '[' nn '~',
536 * for integer decimal nn.)
537 *
538 * We also deal with the weird ones here. Linux VCs replace F1
539 * to F5 by ESC [ [ A to ESC [ [ E. rxvt doesn't do _that_, but
540 * does replace Home and End (1~ and 4~) by ESC [ H and ESC O w
541 * respectively.
542 */
543 {
544 int code = 0;
545 switch (cm) {
546 case NSF1FunctionKey:
547 code = (m & NSShiftKeyMask ? 23 : 11);
548 break;
549 case NSF2FunctionKey:
550 code = (m & NSShiftKeyMask ? 24 : 12);
551 break;
552 case NSF3FunctionKey:
553 code = (m & NSShiftKeyMask ? 25 : 13);
554 break;
555 case NSF4FunctionKey:
556 code = (m & NSShiftKeyMask ? 26 : 14);
557 break;
558 case NSF5FunctionKey:
559 code = (m & NSShiftKeyMask ? 28 : 15);
560 break;
561 case NSF6FunctionKey:
562 code = (m & NSShiftKeyMask ? 29 : 17);
563 break;
564 case NSF7FunctionKey:
565 code = (m & NSShiftKeyMask ? 31 : 18);
566 break;
567 case NSF8FunctionKey:
568 code = (m & NSShiftKeyMask ? 32 : 19);
569 break;
570 case NSF9FunctionKey:
571 code = (m & NSShiftKeyMask ? 33 : 20);
572 break;
573 case NSF10FunctionKey:
574 code = (m & NSShiftKeyMask ? 34 : 21);
575 break;
576 case NSF11FunctionKey:
577 code = 23;
578 break;
579 case NSF12FunctionKey:
580 code = 24;
581 break;
582 case NSF13FunctionKey:
583 code = 25;
584 break;
585 case NSF14FunctionKey:
586 code = 26;
587 break;
588 case NSF15FunctionKey:
589 code = 28;
590 break;
591 case NSF16FunctionKey:
592 code = 29;
593 break;
594 case NSF17FunctionKey:
595 code = 31;
596 break;
597 case NSF18FunctionKey:
598 code = 32;
599 break;
600 case NSF19FunctionKey:
601 code = 33;
602 break;
603 case NSF20FunctionKey:
604 code = 34;
605 break;
606 }
607 if (!(m & NSControlKeyMask)) switch (cm) {
608 case NSHomeFunctionKey:
609 code = 1;
610 break;
611#ifdef FIXME
612 case GDK_Insert: case GDK_KP_Insert:
613 code = 2;
614 break;
615#endif
616 case NSDeleteFunctionKey:
617 code = 3;
618 break;
619 case NSEndFunctionKey:
620 code = 4;
621 break;
622 case NSPageUpFunctionKey:
623 code = 5;
624 break;
625 case NSPageDownFunctionKey:
626 code = 6;
627 break;
628 }
629 /* Reorder edit keys to physical order */
630 if (cfg.funky_type == FUNKY_VT400 && code <= 6)
631 code = "\0\2\1\4\5\3\6"[code];
632
633 if (term->vt52_mode && code > 0 && code <= 6) {
634 output[end++] = '\033';
635 output[end++] = " HLMEIG"[code];
636 goto done;
637 }
638
639 if (cfg.funky_type == FUNKY_SCO && /* SCO function keys */
640 code >= 11 && code <= 34) {
641 char codes[] = "MNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz@[\\]^_`{";
642 int index = 0;
643 switch (cm) {
644 case NSF1FunctionKey: index = 0; break;
645 case NSF2FunctionKey: index = 1; break;
646 case NSF3FunctionKey: index = 2; break;
647 case NSF4FunctionKey: index = 3; break;
648 case NSF5FunctionKey: index = 4; break;
649 case NSF6FunctionKey: index = 5; break;
650 case NSF7FunctionKey: index = 6; break;
651 case NSF8FunctionKey: index = 7; break;
652 case NSF9FunctionKey: index = 8; break;
653 case NSF10FunctionKey: index = 9; break;
654 case NSF11FunctionKey: index = 10; break;
655 case NSF12FunctionKey: index = 11; break;
656 }
657 if (m & NSShiftKeyMask) index += 12;
658 if (m & NSControlKeyMask) index += 24;
659 output[end++] = '\033';
660 output[end++] = '[';
661 output[end++] = codes[index];
662 goto done;
663 }
664 if (cfg.funky_type == FUNKY_SCO && /* SCO small keypad */
665 code >= 1 && code <= 6) {
666 char codes[] = "HL.FIG";
667 if (code == 3) {
668 output[1] = '\x7F';
669 end = 2;
670 } else {
671 output[end++] = '\033';
672 output[end++] = '[';
673 output[end++] = codes[code-1];
674 }
675 goto done;
676 }
677 if ((term->vt52_mode || cfg.funky_type == FUNKY_VT100P) &&
678 code >= 11 && code <= 24) {
679 int offt = 0;
680 if (code > 15)
681 offt++;
682 if (code > 21)
683 offt++;
684 if (term->vt52_mode) {
685 output[end++] = '\033';
686 output[end++] = code + 'P' - 11 - offt;
687 } else {
688 output[end++] = '\033';
689 output[end++] = 'O';
690 output[end++] = code + 'P' - 11 - offt;
691 }
692 goto done;
693 }
694 if (cfg.funky_type == FUNKY_LINUX && code >= 11 && code <= 15) {
695 output[end++] = '\033';
696 output[end++] = '[';
697 output[end++] = '[';
698 output[end++] = code + 'A' - 11;
699 goto done;
700 }
701 if (cfg.funky_type == FUNKY_XTERM && code >= 11 && code <= 14) {
702 if (term->vt52_mode) {
703 output[end++] = '\033';
704 output[end++] = code + 'P' - 11;
705 } else {
706 output[end++] = '\033';
707 output[end++] = 'O';
708 output[end++] = code + 'P' - 11;
709 }
710 goto done;
711 }
712 if (cfg.rxvt_homeend && (code == 1 || code == 4)) {
713 if (code == 1) {
714 output[end++] = '\033';
715 output[end++] = '[';
716 output[end++] = 'H';
717 } else {
718 output[end++] = '\033';
719 output[end++] = 'O';
720 output[end++] = 'w';
721 }
722 goto done;
723 }
724 if (code) {
725 char buf[20];
726 sprintf(buf, "\x1B[%d~", code);
727 for (i = 0; buf[i]; i++)
728 output[end++] = buf[i];
729 goto done;
730 }
731 }
732
733 /*
734 * Cursor keys. (This includes the numberpad cursor keys,
735 * if we haven't already done them due to app keypad mode.)
736 */
737 {
738 int xkey = 0;
739 switch (cm) {
740 case NSUpArrowFunctionKey: xkey = 'A'; break;
741 case NSDownArrowFunctionKey: xkey = 'B'; break;
742 case NSRightArrowFunctionKey: xkey = 'C'; break;
743 case NSLeftArrowFunctionKey: xkey = 'D'; break;
744 }
745 if (xkey) {
746 /*
747 * The arrow keys normally do ESC [ A and so on. In
748 * app cursor keys mode they do ESC O A instead.
749 * Ctrl toggles the two modes.
750 */
751 if (term->vt52_mode) {
752 output[end++] = '\033';
753 output[end++] = xkey;
754 } else if (!term->app_cursor_keys ^ !(m & NSControlKeyMask)) {
755 output[end++] = '\033';
756 output[end++] = 'O';
757 output[end++] = xkey;
758 } else {
759 output[end++] = '\033';
760 output[end++] = '[';
761 output[end++] = xkey;
762 }
763 goto done;
764 }
765 }
766
767 done:
768
769 /*
770 * Failing everything else, send the exact Unicode we got from
771 * OS X.
772 */
773 if (end == start) {
774 if (n > lenof(output)-start)
775 n = lenof(output)-start; /* _shouldn't_ happen! */
776 for (i = 0; i < n; i++) {
777 output[i+start] = [s characterAtIndex:i];
778 }
779 end = n+start;
780 }
781
782 if (use_coutput) {
783 assert(special);
784 assert(end < lenof(coutput));
785 coutput[end] = '\0';
786 ldisc_send(ldisc, coutput+start, -2, TRUE);
787 } else {
788 luni_send(ldisc, output+start, end-start, TRUE);
789 }
790}
791
792- (int)fromBackend:(const char *)data len:(int)len isStderr:(int)is_stderr
793{
794 return term_data(term, is_stderr, data, len);
795}
796
3d9449a1 797- (void)startAlert:(NSAlert *)alert
798 withCallback:(void (*)(void *, int))callback andCtx:(void *)ctx
799{
919baedb 800 if (alert_ctx || alert_qhead) {
801 /*
802 * Queue this alert to be shown later.
803 */
804 struct alert_queue *qitem = snew(struct alert_queue);
805 qitem->next = NULL;
806 qitem->alert = alert;
807 qitem->callback = callback;
808 qitem->ctx = ctx;
809 if (alert_qtail)
810 alert_qtail->next = qitem;
811 else
812 alert_qhead = qitem;
813 alert_qtail = qitem;
814 } else {
815 alert_callback = callback;
816 alert_ctx = ctx; /* NB this is assumed to need freeing! */
817 [alert beginSheetModalForWindow:self modalDelegate:self
818 didEndSelector:@selector(alertSheetDidEnd:returnCode:contextInfo:)
819 contextInfo:NULL];
820 }
3d9449a1 821}
822
823- (void)alertSheetDidEnd:(NSAlert *)alert returnCode:(int)returnCode
824 contextInfo:(void *)contextInfo
825{
4763c1c2 826 [self performSelectorOnMainThread:
827 @selector(alertSheetDidFinishEnding:)
828 withObject:[NSNumber numberWithInt:returnCode]
829 waitUntilDone:NO];
830}
831
832- (void)alertSheetDidFinishEnding:(id)object
833{
834 int returnCode = [object intValue];
919baedb 835
836 alert_callback(alert_ctx, returnCode); /* transfers ownership of ctx */
4763c1c2 837
838 /*
919baedb 839 * If there's an alert in our queue (either already or because
840 * the callback just queued it), start it.
4763c1c2 841 */
919baedb 842 if (alert_qhead) {
843 struct alert_queue *qnext;
844
845 alert_callback = alert_qhead->callback;
846 alert_ctx = alert_qhead->ctx;
847 [alert_qhead->alert beginSheetModalForWindow:self modalDelegate:self
848 didEndSelector:@selector(alertSheetDidEnd:returnCode:contextInfo:)
849 contextInfo:NULL];
850
851 qnext = alert_qhead->next;
852 sfree(alert_qhead);
853 alert_qhead = qnext;
854 if (!qnext)
855 alert_qtail = NULL;
856 } else {
857 alert_ctx = NULL;
858 }
3d9449a1 859}
860
ec5da310 861- (void)notifyRemoteExit
862{
863 int exitcode;
864
865 if (!exited && (exitcode = back->exitcode(backhandle)) >= 0)
866 [self endSession:(exitcode == 0)];
867}
868
869- (void)endSession:(int)clean
870{
871 exited = TRUE;
872 if (ldisc) {
873 ldisc_free(ldisc);
874 ldisc = NULL;
875 }
876 if (back) {
877 back->free(backhandle);
878 backhandle = NULL;
879 back = NULL;
880 //FIXME: update specials menu;
881 }
882 if (cfg.close_on_exit == FORCE_ON ||
883 (cfg.close_on_exit == AUTO && clean))
884 [self close];
885 // FIXME: else show restart menu item
886}
887
1ddda1ca 888@end
889
890int from_backend(void *frontend, int is_stderr, const char *data, int len)
891{
892 SessionWindow *win = (SessionWindow *)frontend;
893 return [win fromBackend:data len:len isStderr:is_stderr];
894}
895
edd0cb8a 896int get_userpass_input(prompts_t *p, unsigned char *in, int inlen)
897{
898 SessionWindow *win = (SessionWindow *)p->frontend;
899 Terminal *term = [win term];
900 return term_get_userpass_input(term, p, in, inlen);
901}
902
1ddda1ca 903void frontend_keypress(void *handle)
904{
905 /* FIXME */
906}
907
1ddda1ca 908void notify_remote_exit(void *frontend)
909{
ec5da310 910 SessionWindow *win = (SessionWindow *)frontend;
911
912 [win notifyRemoteExit];
1ddda1ca 913}
914
915void ldisc_update(void *frontend, int echo, int edit)
916{
917 //SessionWindow *win = (SessionWindow *)frontend;
918 /*
919 * In a GUI front end, this need do nothing.
920 */
921}
922
c6ccd5c2 923char *get_ttymode(void *frontend, const char *mode)
924{
925 SessionWindow *win = (SessionWindow *)ctx;
926 Terminal *term = [win term];
927 return term_get_ttymode(term, mode);
928}
929
1ddda1ca 930void update_specials_menu(void *frontend)
931{
932 //SessionWindow *win = (SessionWindow *)frontend;
933 /* FIXME */
934}
935
936/*
937 * This is still called when mode==BELL_VISUAL, even though the
938 * visual bell is handled entirely within terminal.c, because we
939 * may want to perform additional actions on any kind of bell (for
940 * example, taskbar flashing in Windows).
941 */
942void beep(void *frontend, int mode)
943{
944 //SessionWindow *win = (SessionWindow *)frontend;
945 if (mode != BELL_VISUAL)
946 NSBeep();
947}
948
949int char_width(Context ctx, int uc)
950{
951 /*
952 * Under X, any fixed-width font really _is_ fixed-width.
953 * Double-width characters will be dealt with using a separate
954 * font. For the moment we can simply return 1.
955 */
956 return 1;
957}
958
959void palette_set(void *frontend, int n, int r, int g, int b)
960{
961 SessionWindow *win = (SessionWindow *)frontend;
962
963 if (n >= 16)
964 n += 256 - 16;
965 if (n > NALLCOLOURS)
966 return;
967 [win setColour:n r:r/255.0 g:g/255.0 b:b/255.0];
968
969 /*
970 * FIXME: do we need an OS X equivalent of set_window_background?
971 */
972}
973
974void palette_reset(void *frontend)
975{
976 SessionWindow *win = (SessionWindow *)frontend;
977 Config *cfg = [win cfg];
978
979 /* This maps colour indices in cfg to those used in colours[]. */
980 static const int ww[] = {
981 256, 257, 258, 259, 260, 261,
982 0, 8, 1, 9, 2, 10, 3, 11,
983 4, 12, 5, 13, 6, 14, 7, 15
984 };
985
986 int i;
987
988 for (i = 0; i < NCFGCOLOURS; i++) {
989 [win setColour:ww[i] r:cfg->colours[i][0]/255.0
990 g:cfg->colours[i][1]/255.0 b:cfg->colours[i][2]/255.0];
991 }
992
993 for (i = 0; i < NEXTCOLOURS; i++) {
994 if (i < 216) {
995 int r = i / 36, g = (i / 6) % 6, b = i % 6;
8098d585 996 r = r ? r*40+55 : 0; g = g ? b*40+55 : 0; b = b ? b*40+55 : 0;
997 [win setColour:i+16 r:r/255.0 g:g/255.0 b:b/255.0];
1ddda1ca 998 } else {
999 int shade = i - 216;
8098d585 1000 float fshade = (shade * 10 + 8) / 255.0;
1ddda1ca 1001 [win setColour:i+16 r:fshade g:fshade b:fshade];
1002 }
1003 }
1004
1005 /*
1006 * FIXME: do we need an OS X equivalent of set_window_background?
1007 */
1008}
1009
1010Context get_ctx(void *frontend)
1011{
1012 SessionWindow *win = (SessionWindow *)frontend;
1013
1014 /*
1015 * Lock the drawing focus on the image inside the TerminalView.
1016 */
1017 [win drawStartFinish:YES];
1018
1019 [[NSGraphicsContext currentContext] setShouldAntialias:YES];
1020
1021 /*
1022 * Cocoa drawing functions don't take a graphics context: that
1023 * parameter is implicit. Therefore, we'll use the frontend
1024 * handle itself as the context, on the grounds that it's as
1025 * good a thing to use as any.
1026 */
1027 return frontend;
1028}
1029
1030void free_ctx(Context ctx)
1031{
1032 SessionWindow *win = (SessionWindow *)ctx;
1033
1034 [win drawStartFinish:NO];
1035}
1036
1037void do_text(Context ctx, int x, int y, wchar_t *text, int len,
1038 unsigned long attr, int lattr)
1039{
1040 SessionWindow *win = (SessionWindow *)ctx;
1041
1042 [win doText:text len:len x:x y:y attr:attr lattr:lattr];
1043}
1044
1045void do_cursor(Context ctx, int x, int y, wchar_t *text, int len,
1046 unsigned long attr, int lattr)
1047{
1048 SessionWindow *win = (SessionWindow *)ctx;
1049 Config *cfg = [win cfg];
1050 int active, passive;
1051
1052 if (attr & TATTR_PASCURS) {
1053 attr &= ~TATTR_PASCURS;
1054 passive = 1;
1055 } else
1056 passive = 0;
1057 if ((attr & TATTR_ACTCURS) && cfg->cursor_type != 0) {
1058 attr &= ~TATTR_ACTCURS;
1059 active = 1;
1060 } else
1061 active = 0;
1062
1063 [win doText:text len:len x:x y:y attr:attr lattr:lattr];
1064
1065 /*
1066 * FIXME: now draw the various cursor types (both passive and
1067 * active underlines and vertical lines, plus passive blocks).
1068 */
1069}
1070
1071/*
1072 * Minimise or restore the window in response to a server-side
1073 * request.
1074 */
1075void set_iconic(void *frontend, int iconic)
1076{
1077 //SessionWindow *win = (SessionWindow *)frontend;
1078 /* FIXME */
1079}
1080
1081/*
1082 * Move the window in response to a server-side request.
1083 */
1084void move_window(void *frontend, int x, int y)
1085{
1086 //SessionWindow *win = (SessionWindow *)frontend;
1087 /* FIXME */
1088}
1089
1090/*
1091 * Move the window to the top or bottom of the z-order in response
1092 * to a server-side request.
1093 */
1094void set_zorder(void *frontend, int top)
1095{
1096 //SessionWindow *win = (SessionWindow *)frontend;
1097 /* FIXME */
1098}
1099
1100/*
1101 * Refresh the window in response to a server-side request.
1102 */
1103void refresh_window(void *frontend)
1104{
1105 //SessionWindow *win = (SessionWindow *)frontend;
1106 /* FIXME */
1107}
1108
1109/*
1110 * Maximise or restore the window in response to a server-side
1111 * request.
1112 */
1113void set_zoomed(void *frontend, int zoomed)
1114{
1115 //SessionWindow *win = (SessionWindow *)frontend;
1116 /* FIXME */
1117}
1118
1119/*
1120 * Report whether the window is iconic, for terminal reports.
1121 */
1122int is_iconic(void *frontend)
1123{
1124 //SessionWindow *win = (SessionWindow *)frontend;
1125 return NO; /* FIXME */
1126}
1127
1128/*
1129 * Report the window's position, for terminal reports.
1130 */
1131void get_window_pos(void *frontend, int *x, int *y)
1132{
1133 //SessionWindow *win = (SessionWindow *)frontend;
1134 /* FIXME */
1135}
1136
1137/*
1138 * Report the window's pixel size, for terminal reports.
1139 */
1140void get_window_pixels(void *frontend, int *x, int *y)
1141{
1142 //SessionWindow *win = (SessionWindow *)frontend;
1143 /* FIXME */
1144}
1145
1146/*
1147 * Return the window or icon title.
1148 */
1149char *get_window_title(void *frontend, int icon)
1150{
1151 //SessionWindow *win = (SessionWindow *)frontend;
1152 return NULL; /* FIXME */
1153}
1154
1155void set_title(void *frontend, char *title)
1156{
1157 //SessionWindow *win = (SessionWindow *)frontend;
1158 /* FIXME */
1159}
1160
1161void set_icon(void *frontend, char *title)
1162{
1163 //SessionWindow *win = (SessionWindow *)frontend;
1164 /* FIXME */
1165}
1166
1167void set_sbar(void *frontend, int total, int start, int page)
1168{
1169 //SessionWindow *win = (SessionWindow *)frontend;
1170 /* FIXME */
1171}
1172
1173void get_clip(void *frontend, wchar_t ** p, int *len)
1174{
1175 //SessionWindow *win = (SessionWindow *)frontend;
1176 /* FIXME */
1177}
1178
1179void write_clip(void *frontend, wchar_t * data, int len, int must_deselect)
1180{
1181 //SessionWindow *win = (SessionWindow *)frontend;
1182 /* FIXME */
1183}
1184
1185void request_paste(void *frontend)
1186{
1187 //SessionWindow *win = (SessionWindow *)frontend;
1188 /* FIXME */
1189}
1190
1191void set_raw_mouse_mode(void *frontend, int activate)
1192{
1193 //SessionWindow *win = (SessionWindow *)frontend;
1194 /* FIXME */
1195}
1196
1197void request_resize(void *frontend, int w, int h)
1198{
1199 //SessionWindow *win = (SessionWindow *)frontend;
1200 /* FIXME */
1201}
1202
1203void sys_cursor(void *frontend, int x, int y)
1204{
1205 //SessionWindow *win = (SessionWindow *)frontend;
1206 /*
1207 * This is probably meaningless under OS X. FIXME: find out for
1208 * sure.
1209 */
1210}
1211
1212void logevent(void *frontend, const char *string)
1213{
1214 //SessionWindow *win = (SessionWindow *)frontend;
1215 /* FIXME */
1216printf("logevent: %s\n", string);
1217}
1218
1219int font_dimension(void *frontend, int which)/* 0 for width, 1 for height */
1220{
1221 //SessionWindow *win = (SessionWindow *)frontend;
1222 return 1; /* FIXME */
1223}
1224
1225void set_busy_status(void *frontend, int status)
1226{
1227 /*
1228 * We need do nothing here: the OS X `application is busy'
1229 * beachball pointer appears _automatically_ when the
1230 * application isn't responding to GUI messages.
1231 */
1232}
Local modifications for Simon Tatham's `PuTTY' SSH client and terminal emulator