32 |
http://msdn.microsoft.com/library/en-us/winui/winui/windowsuserinterface/dataexchange/clipboard/clipboardformats.asp |
http://msdn.microsoft.com/library/en-us/winui/winui/windowsuserinterface/dataexchange/clipboard/clipboardformats.asp |
33 |
*/ |
*/ |
34 |
|
|
35 |
#define NUM_TARGETS 6 |
#ifdef HAVE_ICONV |
36 |
|
#ifdef HAVE_LANGINFO_H |
37 |
|
#ifdef HAVE_ICONV_H |
38 |
|
#include <langinfo.h> |
39 |
|
#include <iconv.h> |
40 |
|
#define USE_UNICODE_CLIPBOARD |
41 |
|
#endif |
42 |
|
#endif |
43 |
|
#endif |
44 |
|
|
45 |
|
#ifdef USE_UNICODE_CLIPBOARD |
46 |
|
#define RDP_CF_TEXT CF_UNICODETEXT |
47 |
|
#else |
48 |
|
#define RDP_CF_TEXT CF_TEXT |
49 |
|
#endif |
50 |
|
|
51 |
|
#define MAX_TARGETS 7 |
52 |
|
|
53 |
extern Display *g_display; |
extern Display *g_display; |
54 |
extern Window g_wnd; |
extern Window g_wnd; |
79 |
denoting all Windows native clipboard formats it offers via |
denoting all Windows native clipboard formats it offers via |
80 |
requests of the _RDESKTOP_CLIPBOARD_FORMATS target. */ |
requests of the _RDESKTOP_CLIPBOARD_FORMATS target. */ |
81 |
static Atom rdesktop_clipboard_formats_atom; |
static Atom rdesktop_clipboard_formats_atom; |
82 |
|
static Atom format_string_atom, format_utf8_string_atom, format_unicode_atom; |
83 |
/* Atom of the INCR clipboard type (see ICCCM on "INCR Properties") */ |
/* Atom of the INCR clipboard type (see ICCCM on "INCR Properties") */ |
84 |
static Atom incr_atom; |
static Atom incr_atom; |
85 |
/* Stores the last "selection request" (= another X client requesting clipboard data from us). |
/* Stores the last "selection request" (= another X client requesting clipboard data from us). |
87 |
When we receive the response from the RDP server (asynchronously), this variable gives us |
When we receive the response from the RDP server (asynchronously), this variable gives us |
88 |
the context to proceed. */ |
the context to proceed. */ |
89 |
static XSelectionRequestEvent selection_request; |
static XSelectionRequestEvent selection_request; |
90 |
|
/* Denotes we have a pending selection request. */ |
91 |
|
static Bool has_selection_request; |
92 |
|
/* Stores the clipboard format (CF_TEXT, CF_UNICODETEXT etc.) requested in the last |
93 |
|
CLIPDR_DATA_REQUEST (= the RDP server requesting clipboard data from us). |
94 |
|
When we receive this data from whatever X client offering it, this variable gives us |
95 |
|
the context to proceed. |
96 |
|
*/ |
97 |
|
static int rdp_clipboard_request_format; |
98 |
/* Array of offered clipboard targets that will be sent to fellow X clients upon a TARGETS request. */ |
/* Array of offered clipboard targets that will be sent to fellow X clients upon a TARGETS request. */ |
99 |
static Atom targets[NUM_TARGETS]; |
static Atom targets[MAX_TARGETS]; |
100 |
|
static int num_targets; |
101 |
/* Denotes that this client currently holds the PRIMARY selection. */ |
/* Denotes that this client currently holds the PRIMARY selection. */ |
102 |
static int have_primary = 0; |
static int have_primary = 0; |
103 |
/* Denotes that an rdesktop (not this rdesktop) is owning the selection, |
/* Denotes that an rdesktop (not this rdesktop) is owning the selection, |
106 |
|
|
107 |
/* Denotes that an INCR ("chunked") transfer is in progress. */ |
/* Denotes that an INCR ("chunked") transfer is in progress. */ |
108 |
static int g_waiting_for_INCR = 0; |
static int g_waiting_for_INCR = 0; |
109 |
|
/* Denotes the target format of the ongoing INCR ("chunked") transfer. */ |
110 |
|
static Atom g_incr_target = 0; |
111 |
/* Buffers an INCR transfer. */ |
/* Buffers an INCR transfer. */ |
112 |
static uint8 *g_clip_buffer = 0; |
static uint8 *g_clip_buffer = 0; |
113 |
/* Denotes the size of g_clip_buffer. */ |
/* Denotes the size of g_clip_buffer. */ |
131 |
*length = dst - data; |
*length = dst - data; |
132 |
} |
} |
133 |
|
|
134 |
/* Translate LF to CR-LF. To do this, we must allocate more memory. |
#ifdef USE_UNICODE_CLIPBOARD |
135 |
|
/* Translate LF to CR-LF. To do this, we must allocate more memory. |
136 |
|
The returned string is null-terminated, as required by CF_UNICODETEXT. |
137 |
|
The size is updated. */ |
138 |
|
static uint8 * |
139 |
|
utf16_lf2crlf(uint8 * data, uint32 * size) |
140 |
|
{ |
141 |
|
uint8 *result; |
142 |
|
uint16 *inptr, *outptr; |
143 |
|
|
144 |
|
/* Worst case: Every char is LF */ |
145 |
|
result = xmalloc((*size * 2) + 2); |
146 |
|
if (result == NULL) |
147 |
|
return NULL; |
148 |
|
|
149 |
|
inptr = (uint16*)data; |
150 |
|
outptr = (uint16*)result; |
151 |
|
|
152 |
|
/* Check for a reversed BOM */ |
153 |
|
Bool swap_endianess = (*inptr == 0xfffe); |
154 |
|
|
155 |
|
while ((uint8*)inptr < data + *size) |
156 |
|
{ |
157 |
|
uint16 uvalue = *inptr; |
158 |
|
if (swap_endianess) |
159 |
|
uvalue = ((uvalue << 8) & 0xff00) + (uvalue >> 8); |
160 |
|
if (uvalue == 0x0a) |
161 |
|
*outptr++ = swap_endianess ? 0x0d00 : 0x0d; |
162 |
|
*outptr++ = *inptr++; |
163 |
|
} |
164 |
|
*outptr++ = 0; /* null termination */ |
165 |
|
*size = (uint8*)outptr - result; |
166 |
|
|
167 |
|
return result; |
168 |
|
} |
169 |
|
#else |
170 |
|
/* Translate LF to CR-LF. To do this, we must allocate more memory. |
171 |
The length is updated. */ |
The length is updated. */ |
172 |
static uint8 * |
static uint8 * |
173 |
lf2crlf(uint8 * data, uint32 * length) |
lf2crlf(uint8 * data, uint32 * length) |
193 |
|
|
194 |
return result; |
return result; |
195 |
} |
} |
196 |
|
#endif |
197 |
|
|
198 |
static void |
static void |
199 |
xclip_provide_selection(XSelectionRequestEvent * req, Atom type, unsigned int format, uint8 * data, |
xclip_provide_selection(XSelectionRequestEvent * req, Atom type, unsigned int format, uint8 * data, |
215 |
XSendEvent(g_display, req->requestor, False, NoEventMask, &xev); |
XSendEvent(g_display, req->requestor, False, NoEventMask, &xev); |
216 |
} |
} |
217 |
|
|
218 |
|
/* Replies a clipboard requestor, telling that we're unable to satisfy his request for whatever reason. |
219 |
|
This has the benefit of finalizing the clipboard negotiation and thus not leaving our requestor |
220 |
|
lingering (and, potentially, stuck). */ |
221 |
|
static void |
222 |
|
xclip_refuse_selection(XSelectionRequestEvent * req) |
223 |
|
{ |
224 |
|
XEvent xev; |
225 |
|
|
226 |
|
xev.xselection.type = SelectionNotify; |
227 |
|
xev.xselection.serial = 0; |
228 |
|
xev.xselection.send_event = True; |
229 |
|
xev.xselection.requestor = req->requestor; |
230 |
|
xev.xselection.selection = req->selection; |
231 |
|
xev.xselection.target = req->target; |
232 |
|
xev.xselection.property = None; |
233 |
|
xev.xselection.time = req->time; |
234 |
|
XSendEvent(g_display, req->requestor, False, NoEventMask, &xev); |
235 |
|
} |
236 |
|
|
237 |
|
/* Wrapper for cliprdr_send_data which also cleans the request state. */ |
238 |
|
static void |
239 |
|
helper_cliprdr_send_response(uint8 * data, uint32 length) |
240 |
|
{ |
241 |
|
if (rdp_clipboard_request_format != 0) |
242 |
|
{ |
243 |
|
cliprdr_send_data(data, length); |
244 |
|
rdp_clipboard_request_format = 0; |
245 |
|
if (!rdesktop_is_selection_owner) |
246 |
|
cliprdr_send_simple_native_format_announce(RDP_CF_TEXT); |
247 |
|
} |
248 |
|
} |
249 |
|
|
250 |
|
/* Last resort, when we have to provide clipboard data but for whatever |
251 |
|
reason couldn't get any. |
252 |
|
*/ |
253 |
|
static void |
254 |
|
helper_cliprdr_send_empty_response() |
255 |
|
{ |
256 |
|
helper_cliprdr_send_response(NULL, 0); |
257 |
|
} |
258 |
|
|
259 |
|
/* Replies with clipboard data to RDP, converting it from the target format |
260 |
|
to the expected RDP format as necessary. Returns true if data was sent. |
261 |
|
*/ |
262 |
|
static Bool |
263 |
|
xclip_send_data_with_convert(uint8* source, size_t source_size, Atom target) |
264 |
|
{ |
265 |
|
#ifdef USE_UNICODE_CLIPBOARD |
266 |
|
if (target == format_string_atom || |
267 |
|
target == format_unicode_atom || |
268 |
|
target == format_utf8_string_atom) |
269 |
|
{ |
270 |
|
if (rdp_clipboard_request_format != RDP_CF_TEXT) |
271 |
|
return False; |
272 |
|
|
273 |
|
/* Make an attempt to convert any string we send to Unicode. |
274 |
|
We don't know what the RDP server's ANSI Codepage is, or how to convert |
275 |
|
to it, so using CF_TEXT is not safe (and is unnecessary, since all |
276 |
|
WinNT versions are Unicode-minded). |
277 |
|
*/ |
278 |
|
size_t unicode_buffer_size; |
279 |
|
char* unicode_buffer; |
280 |
|
iconv_t cd; |
281 |
|
|
282 |
|
if (target == format_string_atom) |
283 |
|
{ |
284 |
|
char* locale_charset = nl_langinfo(CODESET); |
285 |
|
cd = iconv_open(WINDOWS_CODEPAGE, locale_charset); |
286 |
|
if (cd == (iconv_t)-1) |
287 |
|
{ |
288 |
|
DEBUG_CLIPBOARD(("Locale charset %s not found in iconv. Unable to convert clipboard text.\n", locale_charset)); |
289 |
|
return False; |
290 |
|
} |
291 |
|
unicode_buffer_size = source_size * 4; |
292 |
|
} |
293 |
|
else if (target == format_unicode_atom) |
294 |
|
{ |
295 |
|
cd = iconv_open(WINDOWS_CODEPAGE, "UCS-2"); |
296 |
|
if (cd == (iconv_t)-1) |
297 |
|
{ |
298 |
|
return False; |
299 |
|
} |
300 |
|
unicode_buffer_size = source_size; |
301 |
|
} |
302 |
|
else if (target == format_utf8_string_atom) |
303 |
|
{ |
304 |
|
cd = iconv_open(WINDOWS_CODEPAGE, "UTF-8"); |
305 |
|
if (cd == (iconv_t)-1) |
306 |
|
{ |
307 |
|
return False; |
308 |
|
} |
309 |
|
/* UTF-8 is guaranteed to be less or equally compact |
310 |
|
as UTF-16 for all Unicode chars >=2 bytes. |
311 |
|
*/ |
312 |
|
unicode_buffer_size = source_size * 2; |
313 |
|
} |
314 |
|
else |
315 |
|
{ |
316 |
|
return False; |
317 |
|
} |
318 |
|
|
319 |
|
unicode_buffer = xmalloc(unicode_buffer_size); |
320 |
|
size_t unicode_buffer_size_remaining = unicode_buffer_size; |
321 |
|
char* unicode_buffer_remaining = unicode_buffer; |
322 |
|
char* data_remaining = (char*)source; |
323 |
|
size_t data_size_remaining = source_size; |
324 |
|
iconv(cd, &data_remaining, &data_size_remaining, &unicode_buffer_remaining, &unicode_buffer_size_remaining); |
325 |
|
iconv_close(cd); |
326 |
|
|
327 |
|
/* translate linebreaks */ |
328 |
|
uint32 translated_data_size = unicode_buffer_size - unicode_buffer_size_remaining; |
329 |
|
uint8* translated_data = utf16_lf2crlf((uint8*)unicode_buffer, &translated_data_size); |
330 |
|
if (translated_data != NULL) |
331 |
|
{ |
332 |
|
DEBUG_CLIPBOARD(("Sending Unicode string of %d bytes\n", translated_data_size)); |
333 |
|
cliprdr_send_data(translated_data, translated_data_size); |
334 |
|
xfree(translated_data); /* Not the same thing as XFree! */ |
335 |
|
} |
336 |
|
|
337 |
|
xfree(unicode_buffer); |
338 |
|
|
339 |
|
return True; |
340 |
|
} |
341 |
|
#else |
342 |
|
if (target == format_string_atom) |
343 |
|
{ |
344 |
|
uint8 *translated_data; |
345 |
|
uint32 length = source_size; |
346 |
|
|
347 |
|
if (rdp_clipboard_request_format != RDP_CF_TEXT) |
348 |
|
return False; |
349 |
|
|
350 |
|
DEBUG_CLIPBOARD(("Translating linebreaks before sending data\n")); |
351 |
|
translated_data = lf2crlf(source, &length); |
352 |
|
if (translated_data != NULL) |
353 |
|
{ |
354 |
|
cliprdr_send_data(translated_data, length); |
355 |
|
xfree(translated_data); /* Not the same thing as XFree! */ |
356 |
|
} |
357 |
|
|
358 |
|
return True; |
359 |
|
} |
360 |
|
#endif |
361 |
|
else if (target == rdesktop_clipboard_formats_atom) |
362 |
|
{ |
363 |
|
helper_cliprdr_send_response(source, source_size + 1); |
364 |
|
|
365 |
|
return True; |
366 |
|
} |
367 |
|
else |
368 |
|
{ |
369 |
|
return False; |
370 |
|
} |
371 |
|
} |
372 |
|
|
373 |
/* This function is called for SelectionNotify events. |
/* This function is called for SelectionNotify events. |
374 |
The SelectionNotify message is sent from the clipboard owner to the requestor |
The SelectionNotify event is sent from the clipboard owner to the requestor |
375 |
after his request was satisfied. |
after his request was satisfied. |
376 |
If this function is called, we're the requestor side. */ |
If this function is called, we're the requestor side. */ |
377 |
#ifndef MAKE_PROTO |
#ifndef MAKE_PROTO |
380 |
{ |
{ |
381 |
unsigned long nitems, bytes_left; |
unsigned long nitems, bytes_left; |
382 |
XWindowAttributes wa; |
XWindowAttributes wa; |
383 |
Atom type, best_target, text_target; |
Atom type; |
384 |
Atom *supported_targets; |
Atom *supported_targets; |
385 |
int res, i, format; |
int res, i, format; |
386 |
uint8 *data; |
uint8 *data; |
406 |
goto fail; |
goto fail; |
407 |
} |
} |
408 |
|
|
|
|
|
409 |
if (type == incr_atom) |
if (type == incr_atom) |
410 |
{ |
{ |
411 |
DEBUG_CLIPBOARD(("Received INCR.\n")); |
DEBUG_CLIPBOARD(("Received INCR.\n")); |
417 |
} |
} |
418 |
XDeleteProperty(g_display, g_wnd, rdesktop_clipboard_target_atom); |
XDeleteProperty(g_display, g_wnd, rdesktop_clipboard_target_atom); |
419 |
XFree(data); |
XFree(data); |
420 |
|
g_incr_target = event->target; |
421 |
g_waiting_for_INCR = 1; |
g_waiting_for_INCR = 1; |
422 |
return; |
return; |
423 |
} |
} |
427 |
/* Negotiate target format */ |
/* Negotiate target format */ |
428 |
if (event->target == targets_atom) |
if (event->target == targets_atom) |
429 |
{ |
{ |
430 |
/* FIXME: We should choose format here based on what the server wanted */ |
/* Determine the best of text targets that we have available: |
431 |
best_target = XA_STRING; |
Prefer UTF8_STRING > text/unicode (unspecified encoding) > STRING |
432 |
|
(ignore TEXT and COMPOUND_TEXT because we don't have code to handle them) |
433 |
|
*/ |
434 |
|
int text_target_satisfaction = 0; |
435 |
|
Atom best_text_target = 0; /* measures how much we're satisfied with what we found */ |
436 |
if (type != None) |
if (type != None) |
437 |
{ |
{ |
438 |
supported_targets = (Atom *) data; |
supported_targets = (Atom *) data; |
|
text_target = XInternAtom(g_display, "TEXT", False); |
|
439 |
for (i = 0; i < nitems; i++) |
for (i = 0; i < nitems; i++) |
440 |
{ |
{ |
441 |
DEBUG_CLIPBOARD(("Target %d: %s\n", i, |
DEBUG_CLIPBOARD(("Target %d: %s\n", i, |
442 |
XGetAtomName(g_display, supported_targets[i]))); |
XGetAtomName(g_display, supported_targets[i]))); |
443 |
if (supported_targets[i] == text_target) |
if (supported_targets[i] == format_string_atom) |
444 |
|
{ |
445 |
|
if (text_target_satisfaction < 1) |
446 |
|
{ |
447 |
|
DEBUG_CLIPBOARD(("Other party supports STRING, choosing that as best_target\n")); |
448 |
|
best_text_target = supported_targets[i]; |
449 |
|
text_target_satisfaction = 1; |
450 |
|
} |
451 |
|
} |
452 |
|
#ifdef USE_UNICODE_CLIPBOARD |
453 |
|
else if (supported_targets[i] == format_unicode_atom) |
454 |
|
{ |
455 |
|
if (text_target_satisfaction < 2) |
456 |
|
{ |
457 |
|
DEBUG_CLIPBOARD(("Other party supports text/unicode, choosing that as best_target\n")); |
458 |
|
best_text_target = supported_targets[i]; |
459 |
|
text_target_satisfaction = 2; |
460 |
|
} |
461 |
|
} |
462 |
|
else if (supported_targets[i] == format_utf8_string_atom) |
463 |
{ |
{ |
464 |
DEBUG_CLIPBOARD(("Other party supports TEXT, choosing that as best_target\n")); |
if (text_target_satisfaction < 3) |
465 |
best_target = text_target; |
{ |
466 |
break; |
DEBUG_CLIPBOARD(("Other party supports UTF8_STRING, choosing that as best_target\n")); |
467 |
|
best_text_target = supported_targets[i]; |
468 |
|
text_target_satisfaction = 3; |
469 |
|
} |
470 |
} |
} |
471 |
|
#endif |
472 |
} |
} |
|
XFree(data); |
|
473 |
} |
} |
474 |
|
|
475 |
XConvertSelection(g_display, primary_atom, best_target, |
/* Kickstarting the next step in the process of satisfying RDP's |
476 |
rdesktop_clipboard_target_atom, g_wnd, event->time); |
clipboard request -- specifically, requesting the actual clipboard data. |
477 |
return; |
*/ |
478 |
} |
if (best_text_target != 0) |
479 |
|
{ |
480 |
/* Translate linebreaks, but only if not getting data from |
XConvertSelection(g_display, clipboard_atom, best_text_target, rdesktop_clipboard_target_atom, g_wnd, event->time); |
481 |
other rdesktop instance */ |
return; |
482 |
if (event->target != rdesktop_clipboard_formats_atom) |
} |
483 |
{ |
else |
484 |
uint8 *translated_data; |
{ |
485 |
uint32 length = nitems; |
DEBUG_CLIPBOARD(("Unable to find a textual target to satisfy RDP clipboard text request\n")); |
486 |
|
goto fail; |
487 |
DEBUG_CLIPBOARD(("Translating linebreaks before sending data\n")); |
} |
|
translated_data = lf2crlf(data, &length); |
|
|
cliprdr_send_data(translated_data, length + 1); |
|
|
xfree(translated_data); /* Not the same thing as XFree! */ |
|
488 |
} |
} |
489 |
else |
else |
490 |
{ |
{ |
491 |
cliprdr_send_data(data, nitems + 1); |
if (!xclip_send_data_with_convert(data, nitems, event->target)) |
492 |
|
{ |
493 |
|
goto fail; |
494 |
|
} |
495 |
} |
} |
496 |
|
|
497 |
XFree(data); |
XFree(data); |
498 |
|
|
|
if (!rdesktop_is_selection_owner) |
|
|
cliprdr_send_simple_native_format_announce(CF_TEXT); |
|
499 |
return; |
return; |
500 |
|
|
501 |
fail: |
fail: |
502 |
XDeleteProperty(g_display, g_wnd, rdesktop_clipboard_target_atom); |
XDeleteProperty(g_display, g_wnd, rdesktop_clipboard_target_atom); |
503 |
XFree(data); |
XFree(data); |
504 |
cliprdr_send_data(NULL, 0); |
helper_cliprdr_send_empty_response(); |
505 |
} |
} |
506 |
|
|
507 |
/* This function is called for SelectionRequest events. |
/* This function is called for SelectionRequest events. |
508 |
The SelectionRequest message is sent from the requestor to the clipboard owner |
The SelectionRequest event is sent from the requestor to the clipboard owner |
509 |
to request clipboard data. |
to request clipboard data. |
510 |
*/ |
*/ |
511 |
void |
void |
524 |
|
|
525 |
if (event->target == targets_atom) |
if (event->target == targets_atom) |
526 |
{ |
{ |
527 |
xclip_provide_selection(event, XA_ATOM, 32, (uint8 *) & targets, NUM_TARGETS); |
xclip_provide_selection(event, XA_ATOM, 32, (uint8 *) & targets, num_targets); |
528 |
return; |
return; |
529 |
} |
} |
530 |
else if (event->target == timestamp_atom) |
else if (event->target == timestamp_atom) |
532 |
xclip_provide_selection(event, XA_INTEGER, 32, (uint8 *) & g_last_gesturetime, 1); |
xclip_provide_selection(event, XA_INTEGER, 32, (uint8 *) & g_last_gesturetime, 1); |
533 |
return; |
return; |
534 |
} |
} |
|
else if (event->target == rdesktop_clipboard_formats_atom) |
|
|
{ |
|
|
res = XGetWindowProperty(g_display, event->requestor, |
|
|
rdesktop_clipboard_target_atom, 0, 1, True, XA_INTEGER, |
|
|
&type, &format, &nitems, &bytes_left, &prop_return); |
|
|
wanted_format = (uint32 *) prop_return; |
|
|
format = (res == Success) ? *wanted_format : CF_TEXT; |
|
|
/* FIXME: Need to free returned data? */ |
|
|
} |
|
535 |
else |
else |
536 |
{ |
{ |
537 |
format = CF_TEXT; |
/* All the following targets require an async operation with the RDP server |
538 |
} |
and currently we don't do X clipboard request queueing so we can only |
539 |
|
handle one such request at a time. */ |
540 |
|
if (has_selection_request) |
541 |
|
{ |
542 |
|
DEBUG_CLIPBOARD(("Error: Another clipboard request was already sent to the RDP server and not yet responded. Refusing this request.\n")); |
543 |
|
xclip_refuse_selection(event); |
544 |
|
return; |
545 |
|
} |
546 |
|
if (event->target == rdesktop_clipboard_formats_atom) |
547 |
|
{ |
548 |
|
/* Before the requestor makes a request for the _RDESKTOP_CLIPBOARD_FORMATS target, |
549 |
|
he should declare requestor[_RDESKTOP_CLIPBOARD_TARGET] = CF_SOMETHING. |
550 |
|
Otherwise, we default to RDP_CF_TEXT. |
551 |
|
*/ |
552 |
|
res = XGetWindowProperty(g_display, event->requestor, |
553 |
|
rdesktop_clipboard_target_atom, 0, 1, True, XA_INTEGER, |
554 |
|
&type, &format, &nitems, &bytes_left, &prop_return); |
555 |
|
wanted_format = (uint32 *) prop_return; |
556 |
|
format = (res == Success) ? *wanted_format : RDP_CF_TEXT; |
557 |
|
XFree(prop_return); |
558 |
|
} |
559 |
|
else if (event->target == format_string_atom || |
560 |
|
event->target == XA_STRING) |
561 |
|
{ |
562 |
|
/* STRING and XA_STRING are defined to be ISO8859-1 */ |
563 |
|
format = CF_TEXT; |
564 |
|
} |
565 |
|
else if (event->target == format_utf8_string_atom) |
566 |
|
{ |
567 |
|
#ifdef USE_UNICODE_CLIPBOARD |
568 |
|
format = CF_UNICODETEXT; |
569 |
|
#else |
570 |
|
DEBUG_CLIPBOARD(("Requested target unavailable due to lack of Unicode support. (It was not in TARGETS, so why did you ask for it?!)\n")); |
571 |
|
xclip_refuse_selection(event); |
572 |
|
return; |
573 |
|
#endif |
574 |
|
} |
575 |
|
else if (event->target == format_unicode_atom) |
576 |
|
{ |
577 |
|
/* Assuming text/unicode to be UTF-16 */ |
578 |
|
format = CF_UNICODETEXT; |
579 |
|
} |
580 |
|
else |
581 |
|
{ |
582 |
|
DEBUG_CLIPBOARD(("Requested target unavailable. (It was not in TARGETS, so why did you ask for it?!)\n")); |
583 |
|
xclip_refuse_selection(event); |
584 |
|
return; |
585 |
|
} |
586 |
|
|
587 |
cliprdr_send_data_request(format); |
cliprdr_send_data_request(format); |
588 |
selection_request = *event; |
selection_request = *event; |
589 |
/* wait for data */ |
has_selection_request = True; |
590 |
|
return; /* wait for data */ |
591 |
|
} |
592 |
} |
} |
593 |
|
|
594 |
/* When this rdesktop holds ownership over the clipboard, it means the clipboard data |
/* While this rdesktop holds ownership over the clipboard, it means the clipboard data |
595 |
is offered by the RDP server (and when its pasted inside RDP, there's no network |
is offered by the RDP server (and when it is pasted inside RDP, there's no network |
596 |
roundtrip). This event symbolizes this rdesktop lost onwership of the clipboard |
roundtrip). |
597 |
|
|
598 |
|
This event (SelectionClear) symbolizes this rdesktop lost onwership of the clipboard |
599 |
to some other X client. We should find out what clipboard formats this other |
to some other X client. We should find out what clipboard formats this other |
600 |
client offers and announce that to RDP. */ |
client offers and announce that to RDP. */ |
601 |
void |
void |
604 |
DEBUG_CLIPBOARD(("xclip_handle_SelectionClear\n")); |
DEBUG_CLIPBOARD(("xclip_handle_SelectionClear\n")); |
605 |
have_primary = 0; |
have_primary = 0; |
606 |
XDeleteProperty(g_display, DefaultRootWindow(g_display), rdesktop_clipboard_formats_atom); |
XDeleteProperty(g_display, DefaultRootWindow(g_display), rdesktop_clipboard_formats_atom); |
607 |
cliprdr_send_simple_native_format_announce(CF_TEXT); |
/* FIXME: |
608 |
|
Without XFIXES, we cannot reliably know the formats offered by the |
609 |
|
new owner of the X11 clipboard, so we just lie about him |
610 |
|
offering RDP_CF_TEXT. */ |
611 |
|
cliprdr_send_simple_native_format_announce(RDP_CF_TEXT); |
612 |
} |
} |
613 |
|
|
614 |
/* Called when any property changes in our window or the root window. */ |
/* Called when any property changes in our window or the root window. */ |
629 |
|
|
630 |
while (bytes_left > 0) |
while (bytes_left > 0) |
631 |
{ |
{ |
632 |
|
/* Unlike the specification, we don't set the 'delete' arugment to True |
633 |
|
since we slurp the INCR's chunks in even-smaller chunks of 4096 bytes. */ |
634 |
if ((XGetWindowProperty |
if ((XGetWindowProperty |
635 |
(g_display, g_wnd, rdesktop_clipboard_target_atom, offset, 4096L, |
(g_display, g_wnd, rdesktop_clipboard_target_atom, offset, 4096L, |
636 |
False, AnyPropertyType, &type, &format, &nitems, &bytes_left, |
False, AnyPropertyType, &type, &format, &nitems, &bytes_left, |
642 |
|
|
643 |
if (nitems == 0) |
if (nitems == 0) |
644 |
{ |
{ |
645 |
|
/* INCR transfer finished */ |
646 |
XGetWindowAttributes(g_display, g_wnd, &wa); |
XGetWindowAttributes(g_display, g_wnd, &wa); |
647 |
XSelectInput(g_display, g_wnd, |
XSelectInput(g_display, g_wnd, |
648 |
(wa.your_event_mask ^ PropertyChangeMask)); |
(wa.your_event_mask ^ PropertyChangeMask)); |
651 |
|
|
652 |
if (g_clip_buflen > 0) |
if (g_clip_buflen > 0) |
653 |
{ |
{ |
654 |
cliprdr_send_data(g_clip_buffer, g_clip_buflen + 1); |
if (!xclip_send_data_with_convert(g_clip_buffer, g_clip_buflen, g_incr_target)) |
655 |
|
{ |
656 |
if (!rdesktop_is_selection_owner) |
helper_cliprdr_send_empty_response(); |
657 |
cliprdr_send_simple_native_format_announce(CF_TEXT); |
} |
|
|
|
658 |
xfree(g_clip_buffer); |
xfree(g_clip_buffer); |
659 |
g_clip_buffer = 0; |
g_clip_buffer = NULL; |
660 |
g_clip_buflen = 0; |
g_clip_buflen = 0; |
661 |
} |
} |
662 |
} |
} |
663 |
else |
else |
664 |
{ |
{ |
665 |
uint8 *translated_data; |
/* Another chunk in the INCR transfer */ |
666 |
uint32 length = nitems; |
offset += (nitems / 4); /* offset at which to begin the next slurp */ |
667 |
uint8 *tmp; |
g_clip_buffer = xrealloc(g_clip_buffer, g_clip_buflen + nitems); |
668 |
|
memcpy(g_clip_buffer + g_clip_buflen, data, nitems); |
669 |
offset += (length / 4); |
g_clip_buflen += nitems; |
|
DEBUG_CLIPBOARD(("Translating linebreaks before sending data\n")); |
|
|
translated_data = lf2crlf(data, &length); |
|
|
|
|
|
tmp = xmalloc(length + g_clip_buflen); |
|
|
strncpy((char *) tmp, (char *) g_clip_buffer, g_clip_buflen); |
|
|
xfree(g_clip_buffer); |
|
|
|
|
|
strncpy((char *) (tmp + g_clip_buflen), (char *) translated_data, |
|
|
length); |
|
|
xfree(translated_data); |
|
|
|
|
|
g_clip_buffer = tmp; |
|
|
g_clip_buflen += length; |
|
670 |
|
|
671 |
XFree(data); |
XFree(data); |
672 |
} |
} |
673 |
} |
} |
674 |
XDeleteProperty(g_display, g_wnd, rdesktop_clipboard_target_atom); |
XDeleteProperty(g_display, g_wnd, rdesktop_clipboard_target_atom); |
|
} |
|
|
|
|
|
if (event->atom != rdesktop_clipboard_formats_atom) |
|
|
return; |
|
|
|
|
|
if (have_primary) /* from us */ |
|
675 |
return; |
return; |
676 |
|
} |
677 |
|
|
678 |
if (event->state == PropertyNewValue) |
if ((event->atom == rdesktop_clipboard_formats_atom) && |
679 |
|
(event->window == DefaultRootWindow(g_display)) && |
680 |
|
!have_primary /* not interested in our own events */) |
681 |
{ |
{ |
682 |
res = XGetWindowProperty(g_display, DefaultRootWindow(g_display), |
if (event->state == PropertyNewValue) |
|
rdesktop_clipboard_formats_atom, 0, |
|
|
XMaxRequestSize(g_display), False, XA_STRING, &type, |
|
|
&format, &nitems, &bytes_left, &data); |
|
|
|
|
|
if ((res == Success) && (nitems > 0)) |
|
683 |
{ |
{ |
684 |
cliprdr_send_native_format_announce(data, nitems); |
DEBUG_CLIPBOARD(("xclip_handle_PropertyNotify: getting fellow rdesktop formats\n")); |
685 |
rdesktop_is_selection_owner = 1; |
|
686 |
return; |
res = XGetWindowProperty(g_display, DefaultRootWindow(g_display), |
687 |
|
rdesktop_clipboard_formats_atom, 0, |
688 |
|
XMaxRequestSize(g_display), False, XA_STRING, &type, |
689 |
|
&format, &nitems, &bytes_left, &data); |
690 |
|
|
691 |
|
if ((res == Success) && (nitems > 0)) |
692 |
|
{ |
693 |
|
cliprdr_send_native_format_announce(data, nitems); |
694 |
|
rdesktop_is_selection_owner = 1; |
695 |
|
return; |
696 |
|
} |
697 |
} |
} |
|
} |
|
698 |
|
|
699 |
/* PropertyDelete, or XGetWindowProperty failed */ |
/* For some reason, we couldn't announce the native formats */ |
700 |
cliprdr_send_simple_native_format_announce(CF_TEXT); |
cliprdr_send_simple_native_format_announce(RDP_CF_TEXT); |
701 |
rdesktop_is_selection_owner = 0; |
rdesktop_is_selection_owner = 0; |
702 |
|
} |
703 |
} |
} |
704 |
#endif |
#endif |
705 |
|
|
729 |
warning("Failed to aquire ownership of CLIPBOARD clipboard\n"); |
warning("Failed to aquire ownership of CLIPBOARD clipboard\n"); |
730 |
} |
} |
731 |
|
|
732 |
|
/* Called when the RDP server responds with clipboard data (after we've requested it). */ |
733 |
void |
void |
734 |
ui_clip_handle_data(uint8 * data, uint32 length) |
ui_clip_handle_data(uint8 * data, uint32 length) |
735 |
{ |
{ |
736 |
if (selection_request.target != rdesktop_clipboard_formats_atom) |
BOOL free_data = False; |
|
{ |
|
|
uint8 *firstnull; |
|
737 |
|
|
738 |
/* translate linebreaks */ |
if (selection_request.target == format_string_atom || |
739 |
crlf2lf(data, &length); |
selection_request.target == XA_STRING) |
740 |
|
{ |
741 |
/* Only send data up to null byte, if any */ |
/* We're expecting a CF_TEXT response */ |
742 |
firstnull = (uint8 *) strchr((char *) data, '\0'); |
uint8 *firstnull; |
743 |
if (firstnull) |
|
744 |
|
/* translate linebreaks */ |
745 |
|
crlf2lf(data, &length); |
746 |
|
|
747 |
|
/* Only send data up to null byte, if any */ |
748 |
|
firstnull = (uint8 *) strchr((char *) data, '\0'); |
749 |
|
if (firstnull) |
750 |
|
{ |
751 |
|
length = firstnull - data + 1; |
752 |
|
} |
753 |
|
} |
754 |
|
#ifdef USE_UNICODE_CLIPBOARD |
755 |
|
else if (selection_request.target == format_utf8_string_atom) |
756 |
|
{ |
757 |
|
/* We're expecting a CF_UNICODETEXT response */ |
758 |
|
iconv_t cd = iconv_open("UTF-8", WINDOWS_CODEPAGE); |
759 |
|
if (cd != (iconv_t)-1) |
760 |
{ |
{ |
761 |
length = firstnull - data + 1; |
size_t utf8_length = length * 2; |
762 |
|
char* utf8_data = malloc(utf8_length); |
763 |
|
size_t utf8_length_remaining = utf8_length; |
764 |
|
char* utf8_data_remaining = utf8_data; |
765 |
|
char* data_remaining = (char*)data; |
766 |
|
size_t length_remaining = (size_t)length; |
767 |
|
if (utf8_data == NULL) |
768 |
|
{ |
769 |
|
iconv_close(cd); |
770 |
|
return; |
771 |
|
} |
772 |
|
iconv(cd, &data_remaining, &length_remaining, &utf8_data_remaining, &utf8_length_remaining); |
773 |
|
iconv_close(cd); |
774 |
|
free_data = True; |
775 |
|
data = (uint8*)utf8_data; |
776 |
|
length = utf8_length - utf8_length_remaining; |
777 |
} |
} |
778 |
} |
} |
779 |
|
else if (selection_request.target == format_unicode_atom) |
780 |
|
{ |
781 |
|
/* We're expecting a CF_UNICODETEXT response, so what we're |
782 |
|
receiving matches our requirements and there's no need |
783 |
|
for further conversions. */ |
784 |
|
} |
785 |
|
#endif |
786 |
|
else if (selection_request.target == rdesktop_clipboard_formats_atom) |
787 |
|
{ |
788 |
|
/* Pass as-is */ |
789 |
|
} |
790 |
|
else |
791 |
|
{ |
792 |
|
xclip_refuse_selection(&selection_request); |
793 |
|
has_selection_request = False; |
794 |
|
return; |
795 |
|
} |
796 |
|
|
797 |
|
xclip_provide_selection(&selection_request, selection_request.target, 8, data, length - 1); |
798 |
|
has_selection_request = False; |
799 |
|
|
800 |
xclip_provide_selection(&selection_request, XA_STRING, 8, data, length - 1); |
if (free_data) |
801 |
|
free(data); |
802 |
} |
} |
803 |
|
|
804 |
void |
void |
807 |
Window selectionowner; |
Window selectionowner; |
808 |
|
|
809 |
DEBUG_CLIPBOARD(("Request from server for format %d\n", format)); |
DEBUG_CLIPBOARD(("Request from server for format %d\n", format)); |
810 |
|
rdp_clipboard_request_format = format; |
811 |
|
|
812 |
if (rdesktop_is_selection_owner) |
if (rdesktop_is_selection_owner) |
813 |
{ |
{ |
843 |
void |
void |
844 |
ui_clip_sync(void) |
ui_clip_sync(void) |
845 |
{ |
{ |
846 |
cliprdr_send_simple_native_format_announce(CF_TEXT); |
cliprdr_send_simple_native_format_announce(RDP_CF_TEXT); |
847 |
} |
} |
848 |
|
|
849 |
|
|
860 |
rdesktop_clipboard_target_atom = |
rdesktop_clipboard_target_atom = |
861 |
XInternAtom(g_display, "_RDESKTOP_CLIPBOARD_TARGET", False); |
XInternAtom(g_display, "_RDESKTOP_CLIPBOARD_TARGET", False); |
862 |
incr_atom = XInternAtom(g_display, "INCR", False); |
incr_atom = XInternAtom(g_display, "INCR", False); |
863 |
targets[0] = targets_atom; |
format_string_atom = XInternAtom(g_display, "STRING", False); |
864 |
targets[1] = XInternAtom(g_display, "TEXT", False); |
format_utf8_string_atom = XInternAtom(g_display, "UTF8_STRING", False); |
865 |
targets[2] = XInternAtom(g_display, "STRING", False); |
format_unicode_atom = XInternAtom(g_display, "text/unicode", False); |
866 |
targets[3] = XInternAtom(g_display, "text/unicode", False); |
num_targets = 0; |
867 |
targets[4] = XInternAtom(g_display, "TIMESTAMP", False); |
targets[num_targets++] = targets_atom; |
868 |
targets[5] = XA_STRING; |
targets[num_targets++] = timestamp_atom; |
869 |
|
targets[num_targets++] = rdesktop_clipboard_formats_atom; |
870 |
|
targets[num_targets++] = format_string_atom; |
871 |
|
#ifdef USE_UNICODE_CLIPBOARD |
872 |
|
targets[num_targets++] = format_utf8_string_atom; |
873 |
|
#endif |
874 |
|
targets[num_targets++] = format_unicode_atom; |
875 |
|
targets[num_targets++] = XA_STRING; |
876 |
|
|
877 |
/* rdesktop sets _RDESKTOP_CLIPBOARD_FORMATS on the root window when acquiring the clipboard. |
/* rdesktop sets _RDESKTOP_CLIPBOARD_FORMATS on the root window when acquiring the clipboard. |
878 |
Other interested rdesktops can use this to notify their server of the available formats. */ |
Other interested rdesktops can use this to notify their server of the available formats. */ |