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edfda783 | 1 | /* NeXT/Open/GNUstep / MacOSX Cocoa selection processing for emacs. |
76b6f707 | 2 | Copyright (C) 1993, 1994, 2005, 2006, 2008, 2009 |
32d235f8 | 3 | Free Software Foundation, Inc. |
edfda783 AR |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
32d235f8 | 7 | GNU Emacs is free software: you can redistribute it and/or modify |
edfda783 | 8 | it under the terms of the GNU General Public License as published by |
32d235f8 GM |
9 | the Free Software Foundation, either version 3 of the License, or |
10 | (at your option) any later version. | |
edfda783 AR |
11 | |
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
32d235f8 | 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
edfda783 | 19 | |
32d235f8 | 20 | /* |
edfda783 AR |
21 | Originally by Carl Edman |
22 | Updated by Christian Limpach (chris@nice.ch) | |
23 | OpenStep/Rhapsody port by Scott Bender (sbender@harmony-ds.com) | |
24 | MacOSX/Aqua port by Christophe de Dinechin (descubes@earthlink.net) | |
25 | GNUstep port and post-20 update by Adrian Robert (arobert@cogsci.ucsd.edu) | |
edfda783 AR |
26 | */ |
27 | ||
5a06864f AR |
28 | /* This should be the first include, as it may set up #defines affecting |
29 | interpretation of even the system includes. */ | |
edfda783 | 30 | #include "config.h" |
5a06864f | 31 | |
edfda783 AR |
32 | #include "lisp.h" |
33 | #include "nsterm.h" | |
34 | #include "termhooks.h" | |
35 | ||
36 | #define CUT_BUFFER_SUPPORT | |
37 | ||
38 | Lisp_Object QPRIMARY, QSECONDARY, QTEXT, QFILE_NAME; | |
39 | ||
40 | static Lisp_Object Vns_sent_selection_hooks; | |
41 | static Lisp_Object Vns_lost_selection_hooks; | |
42 | static Lisp_Object Vselection_alist; | |
43 | static Lisp_Object Vselection_converter_alist; | |
44 | ||
edfda783 AR |
45 | static Lisp_Object Qforeign_selection; |
46 | ||
47 | NSString *NXSecondaryPboard; | |
48 | ||
49 | ||
50 | ||
51 | /* ========================================================================== | |
52 | ||
53 | Internal utility functions | |
54 | ||
55 | ========================================================================== */ | |
56 | ||
57 | ||
58 | static NSString * | |
59 | symbol_to_nsstring (Lisp_Object sym) | |
60 | { | |
61 | CHECK_SYMBOL (sym); | |
62 | if (EQ (sym, QPRIMARY)) return NSGeneralPboard; | |
63 | if (EQ (sym, QSECONDARY)) return NXSecondaryPboard; | |
64 | if (EQ (sym, QTEXT)) return NSStringPboardType; | |
65 | return [NSString stringWithUTF8String: XSTRING (XSYMBOL (sym)->xname)->data]; | |
66 | } | |
67 | ||
68 | ||
69 | static Lisp_Object | |
70 | ns_string_to_symbol (NSString *t) | |
71 | { | |
72 | if ([t isEqualToString: NSGeneralPboard]) | |
73 | return QPRIMARY; | |
74 | if ([t isEqualToString: NXSecondaryPboard]) | |
75 | return QSECONDARY; | |
76 | if ([t isEqualToString: NSStringPboardType]) | |
77 | return QTEXT; | |
78 | if ([t isEqualToString: NSFilenamesPboardType]) | |
79 | return QFILE_NAME; | |
80 | if ([t isEqualToString: NSTabularTextPboardType]) | |
81 | return QTEXT; | |
82 | return intern ([t UTF8String]); | |
83 | } | |
84 | ||
85 | ||
86 | static Lisp_Object | |
87 | clean_local_selection_data (Lisp_Object obj) | |
88 | { | |
89 | if (CONSP (obj) | |
90 | && INTEGERP (XCAR (obj)) | |
91 | && CONSP (XCDR (obj)) | |
92 | && INTEGERP (XCAR (XCDR (obj))) | |
93 | && NILP (XCDR (XCDR (obj)))) | |
94 | obj = Fcons (XCAR (obj), XCDR (obj)); | |
95 | ||
96 | if (CONSP (obj) | |
97 | && INTEGERP (XCAR (obj)) | |
98 | && INTEGERP (XCDR (obj))) | |
99 | { | |
100 | if (XINT (XCAR (obj)) == 0) | |
101 | return XCDR (obj); | |
102 | if (XINT (XCAR (obj)) == -1) | |
103 | return make_number (- XINT (XCDR (obj))); | |
104 | } | |
105 | ||
106 | if (VECTORP (obj)) | |
107 | { | |
108 | int i; | |
facfbbbd | 109 | int size = ASIZE (obj); |
edfda783 AR |
110 | Lisp_Object copy; |
111 | ||
112 | if (size == 1) | |
facfbbbd SM |
113 | return clean_local_selection_data (AREF (obj, 0)); |
114 | copy = Fmake_vector (make_number (size), Qnil); | |
edfda783 | 115 | for (i = 0; i < size; i++) |
facfbbbd | 116 | AREF (copy, i) = clean_local_selection_data (AREF (obj, i)); |
edfda783 AR |
117 | return copy; |
118 | } | |
119 | ||
120 | return obj; | |
121 | } | |
122 | ||
123 | ||
124 | static void | |
125 | ns_declare_pasteboard (id pb) | |
126 | { | |
127 | [pb declareTypes: ns_send_types owner: NSApp]; | |
128 | } | |
129 | ||
130 | ||
131 | static void | |
132 | ns_undeclare_pasteboard (id pb) | |
133 | { | |
134 | [pb declareTypes: [NSArray array] owner: nil]; | |
135 | } | |
136 | ||
137 | ||
138 | static void | |
139 | ns_string_to_pasteboard_internal (id pb, Lisp_Object str, NSString *gtype) | |
140 | { | |
141 | if (EQ (str, Qnil)) | |
142 | { | |
143 | [pb declareTypes: [NSArray array] owner: nil]; | |
144 | } | |
145 | else | |
146 | { | |
147 | char *utfStr; | |
148 | NSString *type, *nsStr; | |
149 | NSEnumerator *tenum; | |
150 | ||
151 | CHECK_STRING (str); | |
152 | ||
153 | utfStr = XSTRING (str)->data; | |
154 | nsStr = [NSString stringWithUTF8String: utfStr]; | |
155 | ||
156 | if (gtype == nil) | |
157 | { | |
158 | [pb declareTypes: ns_send_types owner: nil]; | |
159 | tenum = [ns_send_types objectEnumerator]; | |
160 | while ( (type = [tenum nextObject]) ) | |
161 | [pb setString: nsStr forType: type]; | |
162 | } | |
163 | else | |
164 | { | |
165 | [pb setString: nsStr forType: gtype]; | |
166 | } | |
167 | } | |
168 | } | |
169 | ||
170 | ||
171 | static Lisp_Object | |
172 | ns_get_local_selection (Lisp_Object selection_name, | |
173 | Lisp_Object target_type) | |
174 | { | |
175 | Lisp_Object local_value; | |
176 | Lisp_Object handler_fn, value, type, check; | |
177 | int count; | |
178 | ||
179 | local_value = assq_no_quit (selection_name, Vselection_alist); | |
180 | ||
181 | if (NILP (local_value)) return Qnil; | |
182 | ||
183 | count = specpdl_ptr - specpdl; | |
184 | specbind (Qinhibit_quit, Qt); | |
185 | CHECK_SYMBOL (target_type); | |
186 | handler_fn = Fcdr (Fassq (target_type, Vselection_converter_alist)); | |
187 | if (!NILP (handler_fn)) | |
facfbbbd | 188 | value = call3 (handler_fn, selection_name, target_type, |
edfda783 AR |
189 | XCAR (XCDR (local_value))); |
190 | else | |
facfbbbd | 191 | value = Qnil; |
edfda783 AR |
192 | unbind_to (count, Qnil); |
193 | ||
facfbbbd | 194 | check = value; |
edfda783 AR |
195 | if (CONSP (value) && SYMBOLP (XCAR (value))) |
196 | { | |
197 | type = XCAR (value); | |
198 | check = XCDR (value); | |
199 | } | |
200 | ||
201 | if (STRINGP (check) || VECTORP (check) || SYMBOLP (check) | |
202 | || INTEGERP (check) || NILP (value)) | |
203 | return value; | |
204 | ||
205 | if (CONSP (check) | |
206 | && INTEGERP (XCAR (check)) | |
207 | && (INTEGERP (XCDR (check))|| | |
208 | (CONSP (XCDR (check)) | |
209 | && INTEGERP (XCAR (XCDR (check))) | |
210 | && NILP (XCDR (XCDR (check)))))) | |
211 | return value; | |
212 | ||
facfbbbd | 213 | // FIXME: Why `quit' rather than `error'? |
edfda783 AR |
214 | Fsignal (Qquit, Fcons (build_string ( |
215 | "invalid data returned by selection-conversion function"), | |
216 | Fcons (handler_fn, Fcons (value, Qnil)))); | |
facfbbbd SM |
217 | // FIXME: Beware, `quit' can return!! |
218 | return Qnil; | |
edfda783 AR |
219 | } |
220 | ||
221 | ||
222 | static Lisp_Object | |
223 | ns_get_foreign_selection (Lisp_Object symbol, Lisp_Object target) | |
224 | { | |
225 | id pb; | |
226 | pb =[NSPasteboard pasteboardWithName: symbol_to_nsstring (symbol)]; | |
227 | return ns_string_from_pasteboard (pb); | |
228 | } | |
229 | ||
230 | ||
231 | static void | |
232 | ns_handle_selection_request (struct input_event *event) | |
233 | { | |
facfbbbd SM |
234 | // FIXME: BIG UGLY HACK!!! |
235 | id pb = (id)*(EMACS_INT*)&(event->x); | |
236 | NSString *type = (NSString *)*(EMACS_INT*)&(event->y); | |
edfda783 AR |
237 | Lisp_Object selection_name, selection_data, target_symbol, data; |
238 | Lisp_Object successful_p, rest; | |
239 | ||
facfbbbd SM |
240 | selection_name = ns_string_to_symbol ([(NSPasteboard *)pb name]); |
241 | target_symbol = ns_string_to_symbol (type); | |
edfda783 | 242 | selection_data = assq_no_quit (selection_name, Vselection_alist); |
facfbbbd | 243 | successful_p = Qnil; |
edfda783 AR |
244 | |
245 | if (!NILP (selection_data)) | |
246 | { | |
247 | data = ns_get_local_selection (selection_name, target_symbol); | |
248 | if (!NILP (data)) | |
249 | { | |
250 | if (STRINGP (data)) | |
251 | ns_string_to_pasteboard_internal (pb, data, type); | |
facfbbbd | 252 | successful_p = Qt; |
edfda783 AR |
253 | } |
254 | } | |
255 | ||
256 | if (!EQ (Vns_sent_selection_hooks, Qunbound)) | |
257 | { | |
facfbbbd | 258 | for (rest = Vns_sent_selection_hooks; CONSP (rest); rest = Fcdr (rest)) |
edfda783 AR |
259 | call3 (Fcar (rest), selection_name, target_symbol, successful_p); |
260 | } | |
261 | } | |
262 | ||
263 | ||
264 | static void | |
265 | ns_handle_selection_clear (struct input_event *event) | |
266 | { | |
facfbbbd | 267 | id pb = (id)*(EMACS_INT*)&(event->x); |
edfda783 AR |
268 | Lisp_Object selection_name, selection_data, rest; |
269 | ||
facfbbbd SM |
270 | selection_name = ns_string_to_symbol ([(NSPasteboard *)pb name]); |
271 | selection_data = assq_no_quit (selection_name, Vselection_alist); | |
edfda783 AR |
272 | if (NILP (selection_data)) return; |
273 | ||
274 | if (EQ (selection_data, Fcar (Vselection_alist))) | |
275 | Vselection_alist = Fcdr (Vselection_alist); | |
276 | else | |
277 | { | |
278 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) | |
279 | if (EQ (selection_data, Fcar (Fcdr (rest)))) | |
280 | Fsetcdr (rest, Fcdr (Fcdr (rest))); | |
281 | } | |
282 | ||
283 | if (!EQ (Vns_lost_selection_hooks, Qunbound)) | |
284 | { | |
facfbbbd | 285 | for (rest = Vns_lost_selection_hooks;CONSP (rest); rest = Fcdr (rest)) |
edfda783 AR |
286 | call1 (Fcar (rest), selection_name); |
287 | } | |
288 | } | |
289 | ||
290 | ||
291 | ||
292 | /* ========================================================================== | |
293 | ||
294 | Functions used externally | |
295 | ||
296 | ========================================================================== */ | |
297 | ||
298 | ||
299 | Lisp_Object | |
300 | ns_string_from_pasteboard (id pb) | |
301 | { | |
302 | NSString *type, *str; | |
303 | const char *utfStr; | |
304 | ||
305 | type = [pb availableTypeFromArray: ns_return_types]; | |
306 | if (type == nil) | |
307 | { | |
308 | Fsignal (Qquit, | |
309 | Fcons (build_string ("empty or unsupported pasteboard type"), | |
310 | Qnil)); | |
311 | return Qnil; | |
312 | } | |
313 | ||
314 | /* get the string */ | |
315 | if (! (str = [pb stringForType: type])) | |
316 | { | |
317 | NSData *data = [pb dataForType: type]; | |
318 | if (data != nil) | |
319 | str = [[NSString alloc] initWithData: data | |
320 | encoding: NSUTF8StringEncoding]; | |
321 | if (str != nil) | |
322 | { | |
323 | [str autorelease]; | |
324 | } | |
325 | else | |
326 | { | |
327 | Fsignal (Qquit, | |
328 | Fcons (build_string ("pasteboard doesn't contain valid data"), | |
329 | Qnil)); | |
330 | return Qnil; | |
331 | } | |
332 | } | |
333 | ||
334 | /* assume UTF8 */ | |
335 | NS_DURING | |
336 | { | |
337 | /* EOL conversion: PENDING- is this too simple? */ | |
338 | NSMutableString *mstr = [[str mutableCopy] autorelease]; | |
339 | [mstr replaceOccurrencesOfString: @"\r\n" withString: @"\n" | |
340 | options: NSLiteralSearch range: NSMakeRange (0, [mstr length])]; | |
341 | [mstr replaceOccurrencesOfString: @"\r" withString: @"\n" | |
342 | options: NSLiteralSearch range: NSMakeRange (0, [mstr length])]; | |
343 | ||
344 | utfStr = [mstr UTF8String]; | |
345 | if (!utfStr) | |
346 | utfStr = [mstr cString]; | |
347 | } | |
348 | NS_HANDLER | |
349 | { | |
350 | message1 ("ns_string_from_pasteboard: UTF8String failed\n"); | |
351 | utfStr = [str lossyCString]; | |
352 | } | |
353 | NS_ENDHANDLER | |
354 | ||
355 | return build_string (utfStr); | |
356 | } | |
357 | ||
358 | ||
359 | void | |
360 | ns_string_to_pasteboard (id pb, Lisp_Object str) | |
361 | { | |
362 | ns_string_to_pasteboard_internal (pb, str, nil); | |
363 | } | |
364 | ||
365 | ||
366 | ||
367 | /* ========================================================================== | |
368 | ||
369 | Lisp Defuns | |
370 | ||
371 | ========================================================================== */ | |
372 | ||
373 | ||
374 | DEFUN ("ns-own-selection-internal", Fns_own_selection_internal, | |
a5c55c69 CY |
375 | Sns_own_selection_internal, 2, 2, 0, |
376 | doc: /* Assert a selection. | |
377 | SELECTION-NAME is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
378 | VALUE is typically a string, or a cons of two markers, but may be | |
379 | anything that the functions on `selection-converter-alist' know about. */) | |
edfda783 AR |
380 | (selection_name, selection_value) |
381 | Lisp_Object selection_name, selection_value; | |
382 | { | |
383 | id pb; | |
384 | Lisp_Object old_value, new_value; | |
385 | ||
386 | check_ns (); | |
387 | CHECK_SYMBOL (selection_name); | |
388 | if (NILP (selection_value)) | |
389 | error ("selection-value may not be nil."); | |
390 | pb =[NSPasteboard pasteboardWithName: symbol_to_nsstring (selection_name)]; | |
391 | ns_declare_pasteboard (pb); | |
facfbbbd | 392 | old_value = assq_no_quit (selection_name, Vselection_alist); |
edfda783 AR |
393 | new_value = Fcons (selection_name, Fcons (selection_value, Qnil)); |
394 | if (NILP (old_value)) | |
facfbbbd | 395 | Vselection_alist = Fcons (new_value, Vselection_alist); |
edfda783 AR |
396 | else |
397 | Fsetcdr (old_value, Fcdr (new_value)); | |
398 | /* XXX An evil hack, but a necessary one I fear XXX */ | |
399 | { | |
400 | struct input_event ev; | |
401 | ev.kind = SELECTION_REQUEST_EVENT; | |
402 | ev.modifiers = 0; | |
403 | ev.code = 0; | |
facfbbbd SM |
404 | *(EMACS_INT*)(&(ev.x)) = (EMACS_INT)pb; // FIXME: BIG UGLY HACK!! |
405 | *(EMACS_INT*)(&(ev.y)) = (EMACS_INT)NSStringPboardType; | |
edfda783 AR |
406 | ns_handle_selection_request (&ev); |
407 | } | |
408 | return selection_value; | |
409 | } | |
410 | ||
411 | ||
9e50ff0c DN |
412 | DEFUN ("x-disown-selection-internal", Fx_disown_selection_internal, |
413 | Sx_disown_selection_internal, 1, 2, 0, | |
a5c55c69 | 414 | doc: /* If we own the selection SELECTION, disown it. */) |
edfda783 AR |
415 | (selection_name, time) |
416 | Lisp_Object selection_name, time; | |
417 | { | |
418 | id pb; | |
419 | check_ns (); | |
420 | CHECK_SYMBOL (selection_name); | |
421 | if (NILP (assq_no_quit (selection_name, Vselection_alist))) return Qnil; | |
422 | ||
423 | pb =[NSPasteboard pasteboardWithName: symbol_to_nsstring (selection_name)]; | |
424 | ns_undeclare_pasteboard (pb); | |
425 | return Qt; | |
426 | } | |
427 | ||
428 | ||
429 | DEFUN ("ns-selection-exists-p", Fns_selection_exists_p, Sns_selection_exists_p, | |
a5c55c69 CY |
430 | 0, 1, 0, doc: /* Whether there is an owner for the given selection. |
431 | The arg should be the name of the selection in question, typically one of | |
432 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
433 | \(Those are literal upper-case symbol names.) | |
434 | For convenience, the symbol nil is the same as `PRIMARY', | |
435 | and t is the same as `SECONDARY'.) */) | |
edfda783 AR |
436 | (selection) |
437 | Lisp_Object selection; | |
438 | { | |
439 | id pb; | |
440 | NSArray *types; | |
441 | ||
442 | check_ns (); | |
443 | CHECK_SYMBOL (selection); | |
444 | if (EQ (selection, Qnil)) selection = QPRIMARY; | |
445 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
446 | pb =[NSPasteboard pasteboardWithName: symbol_to_nsstring (selection)]; | |
447 | types =[pb types]; | |
448 | return ([types count] == 0) ? Qnil : Qt; | |
449 | } | |
450 | ||
451 | ||
452 | DEFUN ("ns-selection-owner-p", Fns_selection_owner_p, Sns_selection_owner_p, | |
453 | 0, 1, 0, | |
a5c55c69 CY |
454 | doc: /* Whether the current Emacs process owns the given selection. |
455 | The arg should be the name of the selection in question, typically one of | |
456 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
457 | \(Those are literal upper-case symbol names.) | |
458 | For convenience, the symbol nil is the same as `PRIMARY', | |
459 | and t is the same as `SECONDARY'.) */) | |
edfda783 AR |
460 | (selection) |
461 | Lisp_Object selection; | |
462 | { | |
463 | check_ns (); | |
464 | CHECK_SYMBOL (selection); | |
465 | if (EQ (selection, Qnil)) selection = QPRIMARY; | |
466 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
467 | return (NILP (Fassq (selection, Vselection_alist))) ? Qnil : Qt; | |
468 | } | |
469 | ||
470 | ||
9e50ff0c DN |
471 | DEFUN ("x-get-selection-internal", Fx_get_selection_internal, |
472 | Sx_get_selection_internal, 2, 2, 0, | |
a5c55c69 CY |
473 | doc: /* Return text selected from some pasteboard. |
474 | SELECTION is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
475 | \(Those are literal upper-case symbol names.) | |
476 | TYPE is the type of data desired, typically `STRING'. */) | |
edfda783 AR |
477 | (selection_name, target_type) |
478 | Lisp_Object selection_name, target_type; | |
479 | { | |
480 | Lisp_Object val; | |
481 | ||
482 | check_ns (); | |
483 | CHECK_SYMBOL (selection_name); | |
484 | CHECK_SYMBOL (target_type); | |
485 | val = ns_get_local_selection (selection_name, target_type); | |
486 | if (NILP (val)) | |
487 | val = ns_get_foreign_selection (selection_name, target_type); | |
488 | if (CONSP (val) && SYMBOLP (Fcar (val))) | |
489 | { | |
490 | val = Fcdr (val); | |
491 | if (CONSP (val) && NILP (Fcdr (val))) | |
492 | val = Fcar (val); | |
493 | } | |
494 | val = clean_local_selection_data (val); | |
495 | return val; | |
496 | } | |
497 | ||
498 | ||
499 | #ifdef CUT_BUFFER_SUPPORT | |
500 | DEFUN ("ns-get-cut-buffer-internal", Fns_get_cut_buffer_internal, | |
501 | Sns_get_cut_buffer_internal, 1, 1, 0, | |
a5c55c69 | 502 | doc: /* Returns the value of the named cut buffer. */) |
edfda783 AR |
503 | (buffer) |
504 | Lisp_Object buffer; | |
505 | { | |
506 | id pb; | |
507 | check_ns (); | |
508 | pb =[NSPasteboard pasteboardWithName: symbol_to_nsstring (buffer)]; | |
509 | return ns_string_from_pasteboard (pb); | |
510 | } | |
511 | ||
512 | ||
513 | DEFUN ("ns-rotate-cut-buffers-internal", Fns_rotate_cut_buffers_internal, | |
514 | Sns_rotate_cut_buffers_internal, 1, 1, 0, | |
a5c55c69 CY |
515 | doc: /* Rotate the values of the cut buffers by N steps. |
516 | Positive N means move values forward, negative means | |
517 | backward. CURRENTLY NOT IMPLEMENTED UNDER NEXTSTEP. */ ) | |
edfda783 AR |
518 | (n) |
519 | Lisp_Object n; | |
520 | { | |
521 | /* XXX This function is unimplemented under NeXTstep XXX */ | |
522 | Fsignal (Qquit, Fcons (build_string ( | |
523 | "Warning: ns-rotate-cut-buffers-internal not implemented\n"), Qnil)); | |
524 | return Qnil; | |
525 | } | |
526 | ||
527 | ||
528 | DEFUN ("ns-store-cut-buffer-internal", Fns_store_cut_buffer_internal, | |
529 | Sns_store_cut_buffer_internal, 2, 2, 0, | |
a5c55c69 | 530 | doc: /* Sets the value of the named cut buffer (typically CUT_BUFFER0). */) |
edfda783 AR |
531 | (buffer, string) |
532 | Lisp_Object buffer, string; | |
533 | { | |
534 | id pb; | |
535 | check_ns (); | |
536 | pb =[NSPasteboard pasteboardWithName: symbol_to_nsstring (buffer)]; | |
537 | ns_string_to_pasteboard (pb, string); | |
538 | return Qnil; | |
539 | } | |
540 | #endif | |
541 | ||
542 | ||
543 | void | |
544 | nxatoms_of_nsselect (void) | |
545 | { | |
546 | NXSecondaryPboard = @"Selection"; | |
547 | } | |
548 | ||
549 | void | |
550 | syms_of_nsselect (void) | |
551 | { | |
552 | QPRIMARY = intern ("PRIMARY"); staticpro (&QPRIMARY); | |
553 | QSECONDARY = intern ("SECONDARY"); staticpro (&QSECONDARY); | |
554 | QTEXT = intern ("TEXT"); staticpro (&QTEXT); | |
555 | QFILE_NAME = intern ("FILE_NAME"); staticpro (&QFILE_NAME); | |
556 | ||
9e50ff0c DN |
557 | defsubr (&Sx_disown_selection_internal); |
558 | defsubr (&Sx_get_selection_internal); | |
edfda783 AR |
559 | defsubr (&Sns_own_selection_internal); |
560 | defsubr (&Sns_selection_exists_p); | |
561 | defsubr (&Sns_selection_owner_p); | |
562 | #ifdef CUT_BUFFER_SUPPORT | |
563 | defsubr (&Sns_get_cut_buffer_internal); | |
564 | defsubr (&Sns_rotate_cut_buffers_internal); | |
565 | defsubr (&Sns_store_cut_buffer_internal); | |
566 | #endif | |
567 | ||
568 | Vselection_alist = Qnil; | |
569 | staticpro (&Vselection_alist); | |
570 | ||
571 | DEFVAR_LISP ("ns-sent-selection-hooks", &Vns_sent_selection_hooks, | |
572 | "A list of functions to be called when Emacs answers a selection request.\n\ | |
573 | The functions are called with four arguments:\n\ | |
574 | - the selection name (typically `PRIMARY', `SECONDARY', or `CLIPBOARD');\n\ | |
575 | - the selection-type which Emacs was asked to convert the\n\ | |
576 | selection into before sending (for example, `STRING' or `LENGTH');\n\ | |
577 | - a flag indicating success or failure for responding to the request.\n\ | |
578 | We might have failed (and declined the request) for any number of reasons,\n\ | |
579 | including being asked for a selection that we no longer own, or being asked\n\ | |
580 | to convert into a type that we don't know about or that is inappropriate.\n\ | |
581 | This hook doesn't let you change the behavior of Emacs's selection replies,\n\ | |
582 | it merely informs you that they have happened."); | |
583 | Vns_sent_selection_hooks = Qnil; | |
584 | ||
585 | DEFVAR_LISP ("selection-converter-alist", &Vselection_converter_alist, | |
586 | "An alist associating X Windows selection-types with functions.\n\ | |
587 | These functions are called to convert the selection, with three args:\n\ | |
588 | the name of the selection (typically `PRIMARY', `SECONDARY', or `CLIPBOARD');\n\ | |
589 | a desired type to which the selection should be converted;\n\ | |
590 | and the local selection value (whatever was given to `x-own-selection').\n\ | |
591 | \n\ | |
592 | The function should return the value to send to the X server\n\ | |
593 | \(typically a string). A return value of nil\n\ | |
594 | means that the conversion could not be done.\n\ | |
595 | A return value which is the symbol `NULL'\n\ | |
596 | means that a side-effect was executed,\n\ | |
597 | and there is no meaningful selection value."); | |
598 | Vselection_converter_alist = Qnil; | |
599 | ||
600 | DEFVAR_LISP ("ns-lost-selection-hooks", &Vns_lost_selection_hooks, | |
601 | "A list of functions to be called when Emacs loses an X selection.\n\ | |
602 | \(This happens when some other X client makes its own selection\n\ | |
603 | or when a Lisp program explicitly clears the selection.)\n\ | |
604 | The functions are called with one argument, the selection type\n\ | |
605 | \(a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD')."); | |
606 | Vns_lost_selection_hooks = Qnil; | |
607 | ||
edfda783 AR |
608 | Qforeign_selection = intern ("foreign-selection"); |
609 | staticpro (&Qforeign_selection); | |
edfda783 | 610 | } |
0ae1e5e5 | 611 | |
2f8e74bb | 612 | // arch-tag: 39d1dde7-06a6-49ff-95a7-0e7af12d2218 |