aboutsummaryrefslogtreecommitdiff
path: root/src/libdraw/x11-itrans.c
blob: 1b603902a7a650535a6c092c279899f489fb7363 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
/* input event and data structure translation */

#include "x11-inc.h"

#include <u.h>
#include <libc.h>
#include <draw.h>
#include <memdraw.h>
#include <mouse.h>
#include <cursor.h>
#include <keyboard.h>
#include "x11-memdraw.h"

static int
__xtoplan9kbd(XEvent *e)
{
	int ind, k, md;

	md = e->xkey.state;
	ind = 0;
	if(md & ShiftMask)
		ind = 1;

	k = XKeycodeToKeysym(e->xany.display, (KeyCode)e->xkey.keycode, ind);
	if(k == XK_Multi_key || k == NoSymbol)
		return -1;

	if(k&0xFF00){
		switch(k){
		case XK_BackSpace:
		case XK_Tab:
		case XK_Escape:
		case XK_Delete:
		case XK_KP_0:
		case XK_KP_1:
		case XK_KP_2:
		case XK_KP_3:
		case XK_KP_4:
		case XK_KP_5:
		case XK_KP_6:
		case XK_KP_7:
		case XK_KP_8:
		case XK_KP_9:
		case XK_KP_Divide:
		case XK_KP_Multiply:
		case XK_KP_Subtract:
		case XK_KP_Add:
		case XK_KP_Decimal:
			k &= 0x7F;
			break;
		case XK_Linefeed:
			k = '\r';
			break;
		case XK_KP_Space:
			k = ' ';
			break;
		case XK_Home:
		case XK_KP_Home:
			k = Khome;
			break;
		case XK_Left:
		case XK_KP_Left:
			k = Kleft;
			break;
		case XK_Up:
		case XK_KP_Up:
			k = Kup;
			break;
		case XK_Down:
		case XK_KP_Down:
			k = Kdown;
			break;
		case XK_Right:
		case XK_KP_Right:
			k = Kright;
			break;
		case XK_Page_Down:
		case XK_KP_Page_Down:
			k = Kpgdown;
			break;
		case XK_End:
		case XK_KP_End:
			k = Kend;
			break;
		case XK_Page_Up:	
		case XK_KP_Page_Up:
			k = Kpgup;
			break;
		case XK_Insert:
		case XK_KP_Insert:
			k = Kins;
			break;
		case XK_KP_Enter:
		case XK_Return:
			k = '\n';
			break;
		case XK_Alt_L:
		case XK_Alt_R:
			k = Kalt;
			break;
		default:		/* not ISO-1 or tty control */
			return -1;
		}
	}

	/* Compensate for servers that call a minus a hyphen */
	if(k == XK_hyphen)
		k = XK_minus;
	/* Do control mapping ourselves if translator doesn't */
	if(e->xkey.state&ControlMask)
		k &= 0x9f;
	if(k == NoSymbol) {
		return -1;
	}

	/* BUG: could/should do Alt translation here! */
	return k;
}

static Rune*
xtoplan9latin1(XEvent *e)
{
	static Rune k[10];
	static int alting, nk;
	int n;
	int r;

	r = __xtoplan9kbd(e);
	if(r < 0)
		return nil;
	if(alting){
		k[nk++] = r;
		n = _latin1(k, nk);
		if(n > 0){
			alting = 0;
			k[0] = n;
			k[1] = 0;
			return k;
		}
		if(n == -1){
			alting = 0;
			k[nk] = 0;
			return k;
		}
		/* n < -1, need more input */
		return nil;
	}else if(r == Kalt){
		alting = 1;
		nk = 0;
		return nil;
	}else{
		k[0] = r;
		k[1] = 0;
		return k;
	}
}

int
_xtoplan9kbd(XEvent *e)
{
	static Rune *r;

	if(e == (XEvent*)-1){
		assert(r);
		r--;
		return 0;
	}
	if(e)
		r = xtoplan9latin1(e);
	if(r && *r)
		return *r++;
	return -1;
}

int
_xtoplan9mouse(XDisplay *xd, XEvent *e, Mouse *m)
{
	int s;
	XButtonEvent *be;
	XMotionEvent *me;

	if(_x.putsnarf != _x.assertsnarf){
		_x.assertsnarf = _x.putsnarf;
		XSetSelectionOwner(_x.mousecon, XA_PRIMARY, _x.drawable, CurrentTime);
		if(_x.clipboard != None)
			XSetSelectionOwner(_x.mousecon, _x.clipboard, _x.drawable, CurrentTime);
		XFlush(xd);
	}

	switch(e->type){
	case ButtonPress:
		be = (XButtonEvent*)e;
		/* 
		 * Fake message, just sent to make us announce snarf.
		 * Apparently state and button are 16 and 8 bits on
		 * the wire, since they are truncated by the time they
		 * get to us.
		 */
		if(be->send_event
		&& (~be->state&0xFFFF)==0
		&& (~be->button&0xFF)==0)
			return -1;
		/* BUG? on mac need to inherit these from elsewhere? */
		m->xy.x = be->x;
		m->xy.y = be->y;
		s = be->state;
		m->msec = be->time;
		switch(be->button){
		case 1:
			s |= Button1Mask;
			break;
		case 2:
			s |= Button2Mask;
			break;
		case 3:
			s |= Button3Mask;
			break;
		}
		break;
	case ButtonRelease:
		be = (XButtonEvent*)e;
		m->xy.x = be->x;
		m->xy.y = be->y;
		s = be->state;
		m->msec = be->time;
		switch(be->button){
		case 1:
			s &= ~Button1Mask;
			break;
		case 2:
			s &= ~Button2Mask;
			break;
		case 3:
			s &= ~Button3Mask;
			break;
		}
		break;

	case MotionNotify:
		me = (XMotionEvent*)e;
		s = me->state;
		m->xy.x = me->x;
		m->xy.y = me->y;
		m->msec = me->time;
		break;

	default:
		return -1;
	}

	m->buttons = 0;
	if(s & Button1Mask)
		m->buttons |= 1;
	if(s & Button2Mask)
		m->buttons |= 2;
	if(s & Button3Mask)
		m->buttons |= 4;

	return 0;
}

void
_xmoveto(Point p)
{
	XWarpPointer(_x.display, None, _x.drawable, 0, 0, 0, 0, p.x, p.y);
	XFlush(_x.display);
}

static int
revbyte(int b)
{
	int r;

	r = 0;
	r |= (b&0x01) << 7;
	r |= (b&0x02) << 5;
	r |= (b&0x04) << 3;
	r |= (b&0x08) << 1;
	r |= (b&0x10) >> 1;
	r |= (b&0x20) >> 3;
	r |= (b&0x40) >> 5;
	r |= (b&0x80) >> 7;
	return r;
}

static void
xcursorarrow(void)
{
	if(_x.cursor != 0){
		XFreeCursor(_x.display, _x.cursor);
		_x.cursor = 0;
	}
	XUndefineCursor(_x.display, _x.drawable);
	XFlush(_x.display);
}


void
_xsetcursor(Cursor *c)
{
	XColor fg, bg;
	XCursor xc;
	Pixmap xsrc, xmask;
	int i;
	uchar src[2*16], mask[2*16];

	if(c == nil){
		xcursorarrow();
		return;
	}
	for(i=0; i<2*16; i++){
		src[i] = revbyte(c->set[i]);
		mask[i] = revbyte(c->set[i] | c->clr[i]);
	}

	fg = _x.map[0];
	bg = _x.map[255];
	xsrc = XCreateBitmapFromData(_x.display, _x.drawable, src, 16, 16);
	xmask = XCreateBitmapFromData(_x.display, _x.drawable, mask, 16, 16);
	xc = XCreatePixmapCursor(_x.display, xsrc, xmask, &fg, &bg, -c->offset.x, -c->offset.y);
	if(xc != 0) {
		XDefineCursor(_x.display, _x.drawable, xc);
		if(_x.cursor != 0)
			XFreeCursor(_x.display, _x.cursor);
		_x.cursor = xc;
	}
	XFreePixmap(_x.display, xsrc);
	XFreePixmap(_x.display, xmask);
	XFlush(_x.display);
}

struct {
	char buf[SnarfSize];
	QLock lk;
} clip;

char*
_xgetsnarf(XDisplay *xd)
{
	uchar *data, *xdata;
	Atom clipboard, type, prop;
	ulong len, lastlen, dummy;
	int fmt, i;
	XWindow w;

	qlock(&clip.lk);
	/*
	 * Is there a primary selection (highlighted text in an xterm)?
	 */
	clipboard = XA_PRIMARY;
	w = XGetSelectionOwner(xd, XA_PRIMARY);
	if(w == _x.drawable){
	mine:
		data = (uchar*)strdup(clip.buf);
		goto out;
	}

	/*
	 * If not, is there a clipboard selection?
	 */
	if(w == None && _x.clipboard != None){
		clipboard = _x.clipboard;
		w = XGetSelectionOwner(xd, _x.clipboard);
		if(w == _x.drawable)
			goto mine;
	}

	/*
	 * If not, give up.
	 */
	if(w == None){
		data = nil;
		goto out;
	}
		
	/*
	 * We should be waiting for SelectionNotify here, but it might never
	 * come, and we have no way to time out.  Instead, we will clear
	 * local property #1, request our buddy to fill it in for us, and poll
	 * until he's done or we get tired of waiting.
	 *
	 * We should try to go for _x.utf8string instead of XA_STRING,
	 * but that would add to the polling.
	 */
	prop = 1;
	XChangeProperty(xd, _x.drawable, prop, XA_STRING, 8, PropModeReplace, (uchar*)"", 0);
	XConvertSelection(xd, clipboard, XA_STRING, prop, _x.drawable, CurrentTime);
	XFlush(xd);
	lastlen = 0;
	for(i=0; i<10 || (lastlen!=0 && i<30); i++){
		usleep(100*1000);
		XGetWindowProperty(xd, _x.drawable, prop, 0, 0, 0, AnyPropertyType,
			&type, &fmt, &dummy, &len, &data);
		if(lastlen == len && len > 0)
			break;
		lastlen = len;
	}
	if(i == 10){
		data = nil;
		goto out;
	}
	/* get the property */
	data = nil;
	XGetWindowProperty(xd, _x.drawable, prop, 0, SnarfSize/sizeof(ulong), 0, 
		AnyPropertyType, &type, &fmt, &len, &dummy, &xdata);
	if((type != XA_STRING && type != _x.utf8string) || len == 0){
		if(xdata)
			XFree(xdata);
		data = nil;
	}else{
		if(xdata){
			data = strdup((char*)xdata);
			XFree(xdata);
		}else
			data = nil;
	}
out:
	qunlock(&clip.lk);
	return data;
}

void
_xputsnarf(XDisplay *xd, char *data)
{
	XButtonEvent e;

	if(strlen(data) >= SnarfSize)
		return;
	qlock(&clip.lk);
	strcpy(clip.buf, data);

	/* leave note for mouse proc to assert selection ownership */
	_x.putsnarf++;

	/* send mouse a fake event so snarf is announced */
	memset(&e, 0, sizeof e);
	e.type = ButtonPress;
	e.window = _x.drawable;
	e.state = ~0;
	e.button = ~0;
	XSendEvent(xd, _x.drawable, True, ButtonPressMask, (XEvent*)&e);
	XFlush(xd);

	qunlock(&clip.lk);
}

int
_xselect(XEvent *e, XDisplay *xd)
{
	char *name;
	XEvent r;
	XSelectionRequestEvent *xe;
	Atom a[4];

	memset(&r, 0, sizeof r);
	xe = (XSelectionRequestEvent*)e;
if(1) fprint(2, "xselect target=%d requestor=%d property=%d selection=%d\n",
	xe->target, xe->requestor, xe->property, xe->selection);
	r.xselection.property = xe->property;
	if(xe->target == _x.targets){
		a[0] = XA_STRING;
		a[1] = _x.utf8string;
		a[2] = _x.text;
		a[3] = _x.compoundtext;

		XChangeProperty(xd, xe->requestor, xe->property, xe->target,
			8, PropModeReplace, (uchar*)a, sizeof a);
	}else if(xe->target == XA_STRING || xe->target == _x.utf8string || xe->target == _x.text || xe->target == _x.compoundtext){
		/* if the target is STRING we're supposed to reply with Latin1 XXX */
		qlock(&clip.lk);
		XChangeProperty(xd, xe->requestor, xe->property, xe->target,
			8, PropModeReplace, (uchar*)clip.buf, strlen(clip.buf));
		qunlock(&clip.lk);
	}else{
		name = XGetAtomName(xd, xe->target);
		fprint(2, "%s: cannot handle selection request for '%s' (%d)\n", argv0, name, (int)xe->target);
		r.xselection.property = None;
	}

	r.xselection.display = xe->display;
	/* r.xselection.property filled above */
	r.xselection.target = xe->target;
	r.xselection.type = SelectionNotify;
	r.xselection.requestor = xe->requestor;
	r.xselection.time = xe->time;
	r.xselection.send_event = True;
	r.xselection.selection = xe->selection;
	XSendEvent(xd, xe->requestor, False, 0, &r);
	XFlush(xd);
	return 0;
}

void
putsnarf(char *data)
{
	_xputsnarf(_x.snarfcon, data);
}

char*
getsnarf(void)
{
	return _xgetsnarf(_x.snarfcon);
}