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edfda783 | 1 | /* NeXT/Open/GNUstep / MacOSX Cocoa selection processing for emacs. |
32d235f8 GM |
2 | Copyright (C) 1993, 1994, 2005, 2006, 2008 |
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 | ||
28 | #include "config.h" | |
29 | #include "lisp.h" | |
30 | #include "nsterm.h" | |
31 | #include "termhooks.h" | |
32 | ||
33 | #define CUT_BUFFER_SUPPORT | |
34 | ||
35 | Lisp_Object QPRIMARY, QSECONDARY, QTEXT, QFILE_NAME; | |
36 | ||
37 | static Lisp_Object Vns_sent_selection_hooks; | |
38 | static Lisp_Object Vns_lost_selection_hooks; | |
39 | static Lisp_Object Vselection_alist; | |
40 | static Lisp_Object Vselection_converter_alist; | |
41 | ||
42 | /* 23: new */ | |
edfda783 AR |
43 | static Lisp_Object Qforeign_selection; |
44 | ||
45 | NSString *NXSecondaryPboard; | |
46 | ||
47 | ||
48 | ||
49 | /* ========================================================================== | |
50 | ||
51 | Internal utility functions | |
52 | ||
53 | ========================================================================== */ | |
54 | ||
55 | ||
56 | static NSString * | |
57 | symbol_to_nsstring (Lisp_Object sym) | |
58 | { | |
59 | CHECK_SYMBOL (sym); | |
60 | if (EQ (sym, QPRIMARY)) return NSGeneralPboard; | |
61 | if (EQ (sym, QSECONDARY)) return NXSecondaryPboard; | |
62 | if (EQ (sym, QTEXT)) return NSStringPboardType; | |
63 | return [NSString stringWithUTF8String: XSTRING (XSYMBOL (sym)->xname)->data]; | |
64 | } | |
65 | ||
66 | ||
67 | static Lisp_Object | |
68 | ns_string_to_symbol (NSString *t) | |
69 | { | |
70 | if ([t isEqualToString: NSGeneralPboard]) | |
71 | return QPRIMARY; | |
72 | if ([t isEqualToString: NXSecondaryPboard]) | |
73 | return QSECONDARY; | |
74 | if ([t isEqualToString: NSStringPboardType]) | |
75 | return QTEXT; | |
76 | if ([t isEqualToString: NSFilenamesPboardType]) | |
77 | return QFILE_NAME; | |
78 | if ([t isEqualToString: NSTabularTextPboardType]) | |
79 | return QTEXT; | |
80 | return intern ([t UTF8String]); | |
81 | } | |
82 | ||
83 | ||
84 | static Lisp_Object | |
85 | clean_local_selection_data (Lisp_Object obj) | |
86 | { | |
87 | if (CONSP (obj) | |
88 | && INTEGERP (XCAR (obj)) | |
89 | && CONSP (XCDR (obj)) | |
90 | && INTEGERP (XCAR (XCDR (obj))) | |
91 | && NILP (XCDR (XCDR (obj)))) | |
92 | obj = Fcons (XCAR (obj), XCDR (obj)); | |
93 | ||
94 | if (CONSP (obj) | |
95 | && INTEGERP (XCAR (obj)) | |
96 | && INTEGERP (XCDR (obj))) | |
97 | { | |
98 | if (XINT (XCAR (obj)) == 0) | |
99 | return XCDR (obj); | |
100 | if (XINT (XCAR (obj)) == -1) | |
101 | return make_number (- XINT (XCDR (obj))); | |
102 | } | |
103 | ||
104 | if (VECTORP (obj)) | |
105 | { | |
106 | int i; | |
facfbbbd | 107 | int size = ASIZE (obj); |
edfda783 AR |
108 | Lisp_Object copy; |
109 | ||
110 | if (size == 1) | |
facfbbbd SM |
111 | return clean_local_selection_data (AREF (obj, 0)); |
112 | copy = Fmake_vector (make_number (size), Qnil); | |
edfda783 | 113 | for (i = 0; i < size; i++) |
facfbbbd | 114 | AREF (copy, i) = clean_local_selection_data (AREF (obj, i)); |
edfda783 AR |
115 | return copy; |
116 | } | |
117 | ||
118 | return obj; | |
119 | } | |
120 | ||
121 | ||
122 | static void | |
123 | ns_declare_pasteboard (id pb) | |
124 | { | |
125 | [pb declareTypes: ns_send_types owner: NSApp]; | |
126 | } | |
127 | ||
128 | ||
129 | static void | |
130 | ns_undeclare_pasteboard (id pb) | |
131 | { | |
132 | [pb declareTypes: [NSArray array] owner: nil]; | |
133 | } | |
134 | ||
135 | ||
136 | static void | |
137 | ns_string_to_pasteboard_internal (id pb, Lisp_Object str, NSString *gtype) | |
138 | { | |
139 | if (EQ (str, Qnil)) | |
140 | { | |
141 | [pb declareTypes: [NSArray array] owner: nil]; | |
142 | } | |
143 | else | |
144 | { | |
145 | char *utfStr; | |
146 | NSString *type, *nsStr; | |
147 | NSEnumerator *tenum; | |
148 | ||
149 | CHECK_STRING (str); | |
150 | ||
151 | utfStr = XSTRING (str)->data; | |
152 | nsStr = [NSString stringWithUTF8String: utfStr]; | |
153 | ||
154 | if (gtype == nil) | |
155 | { | |
156 | [pb declareTypes: ns_send_types owner: nil]; | |
157 | tenum = [ns_send_types objectEnumerator]; | |
158 | while ( (type = [tenum nextObject]) ) | |
159 | [pb setString: nsStr forType: type]; | |
160 | } | |
161 | else | |
162 | { | |
163 | [pb setString: nsStr forType: gtype]; | |
164 | } | |
165 | } | |
166 | } | |
167 | ||
168 | ||
169 | static Lisp_Object | |
170 | ns_get_local_selection (Lisp_Object selection_name, | |
171 | Lisp_Object target_type) | |
172 | { | |
173 | Lisp_Object local_value; | |
174 | Lisp_Object handler_fn, value, type, check; | |
175 | int count; | |
176 | ||
177 | local_value = assq_no_quit (selection_name, Vselection_alist); | |
178 | ||
179 | if (NILP (local_value)) return Qnil; | |
180 | ||
181 | count = specpdl_ptr - specpdl; | |
182 | specbind (Qinhibit_quit, Qt); | |
183 | CHECK_SYMBOL (target_type); | |
184 | handler_fn = Fcdr (Fassq (target_type, Vselection_converter_alist)); | |
185 | if (!NILP (handler_fn)) | |
facfbbbd | 186 | value = call3 (handler_fn, selection_name, target_type, |
edfda783 AR |
187 | XCAR (XCDR (local_value))); |
188 | else | |
facfbbbd | 189 | value = Qnil; |
edfda783 AR |
190 | unbind_to (count, Qnil); |
191 | ||
facfbbbd | 192 | check = value; |
edfda783 AR |
193 | if (CONSP (value) && SYMBOLP (XCAR (value))) |
194 | { | |
195 | type = XCAR (value); | |
196 | check = XCDR (value); | |
197 | } | |
198 | ||
199 | if (STRINGP (check) || VECTORP (check) || SYMBOLP (check) | |
200 | || INTEGERP (check) || NILP (value)) | |
201 | return value; | |
202 | ||
203 | if (CONSP (check) | |
204 | && INTEGERP (XCAR (check)) | |
205 | && (INTEGERP (XCDR (check))|| | |
206 | (CONSP (XCDR (check)) | |
207 | && INTEGERP (XCAR (XCDR (check))) | |
208 | && NILP (XCDR (XCDR (check)))))) | |
209 | return value; | |
210 | ||
facfbbbd | 211 | // FIXME: Why `quit' rather than `error'? |
edfda783 AR |
212 | Fsignal (Qquit, Fcons (build_string ( |
213 | "invalid data returned by selection-conversion function"), | |
214 | Fcons (handler_fn, Fcons (value, Qnil)))); | |
facfbbbd SM |
215 | // FIXME: Beware, `quit' can return!! |
216 | return Qnil; | |
edfda783 AR |
217 | } |
218 | ||
219 | ||
220 | static Lisp_Object | |
221 | ns_get_foreign_selection (Lisp_Object symbol, Lisp_Object target) | |
222 | { | |
223 | id pb; | |
224 | pb =[NSPasteboard pasteboardWithName: symbol_to_nsstring (symbol)]; | |
225 | return ns_string_from_pasteboard (pb); | |
226 | } | |
227 | ||
228 | ||
229 | static void | |
230 | ns_handle_selection_request (struct input_event *event) | |
231 | { | |
facfbbbd SM |
232 | // FIXME: BIG UGLY HACK!!! |
233 | id pb = (id)*(EMACS_INT*)&(event->x); | |
234 | NSString *type = (NSString *)*(EMACS_INT*)&(event->y); | |
edfda783 AR |
235 | Lisp_Object selection_name, selection_data, target_symbol, data; |
236 | Lisp_Object successful_p, rest; | |
237 | ||
facfbbbd SM |
238 | selection_name = ns_string_to_symbol ([(NSPasteboard *)pb name]); |
239 | target_symbol = ns_string_to_symbol (type); | |
edfda783 | 240 | selection_data = assq_no_quit (selection_name, Vselection_alist); |
facfbbbd | 241 | successful_p = Qnil; |
edfda783 AR |
242 | |
243 | if (!NILP (selection_data)) | |
244 | { | |
245 | data = ns_get_local_selection (selection_name, target_symbol); | |
246 | if (!NILP (data)) | |
247 | { | |
248 | if (STRINGP (data)) | |
249 | ns_string_to_pasteboard_internal (pb, data, type); | |
facfbbbd | 250 | successful_p = Qt; |
edfda783 AR |
251 | } |
252 | } | |
253 | ||
254 | if (!EQ (Vns_sent_selection_hooks, Qunbound)) | |
255 | { | |
facfbbbd | 256 | for (rest = Vns_sent_selection_hooks; CONSP (rest); rest = Fcdr (rest)) |
edfda783 AR |
257 | call3 (Fcar (rest), selection_name, target_symbol, successful_p); |
258 | } | |
259 | } | |
260 | ||
261 | ||
262 | static void | |
263 | ns_handle_selection_clear (struct input_event *event) | |
264 | { | |
facfbbbd | 265 | id pb = (id)*(EMACS_INT*)&(event->x); |
edfda783 AR |
266 | Lisp_Object selection_name, selection_data, rest; |
267 | ||
facfbbbd SM |
268 | selection_name = ns_string_to_symbol ([(NSPasteboard *)pb name]); |
269 | selection_data = assq_no_quit (selection_name, Vselection_alist); | |
edfda783 AR |
270 | if (NILP (selection_data)) return; |
271 | ||
272 | if (EQ (selection_data, Fcar (Vselection_alist))) | |
273 | Vselection_alist = Fcdr (Vselection_alist); | |
274 | else | |
275 | { | |
276 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) | |
277 | if (EQ (selection_data, Fcar (Fcdr (rest)))) | |
278 | Fsetcdr (rest, Fcdr (Fcdr (rest))); | |
279 | } | |
280 | ||
281 | if (!EQ (Vns_lost_selection_hooks, Qunbound)) | |
282 | { | |
facfbbbd | 283 | for (rest = Vns_lost_selection_hooks;CONSP (rest); rest = Fcdr (rest)) |
edfda783 AR |
284 | call1 (Fcar (rest), selection_name); |
285 | } | |
286 | } | |
287 | ||
288 | ||
289 | ||
290 | /* ========================================================================== | |
291 | ||
292 | Functions used externally | |
293 | ||
294 | ========================================================================== */ | |
295 | ||
296 | ||
297 | Lisp_Object | |
298 | ns_string_from_pasteboard (id pb) | |
299 | { | |
300 | NSString *type, *str; | |
301 | const char *utfStr; | |
302 | ||
303 | type = [pb availableTypeFromArray: ns_return_types]; | |
304 | if (type == nil) | |
305 | { | |
306 | Fsignal (Qquit, | |
307 | Fcons (build_string ("empty or unsupported pasteboard type"), | |
308 | Qnil)); | |
309 | return Qnil; | |
310 | } | |
311 | ||
312 | /* get the string */ | |
313 | if (! (str = [pb stringForType: type])) | |
314 | { | |
315 | NSData *data = [pb dataForType: type]; | |
316 | if (data != nil) | |
317 | str = [[NSString alloc] initWithData: data | |
318 | encoding: NSUTF8StringEncoding]; | |
319 | if (str != nil) | |
320 | { | |
321 | [str autorelease]; | |
322 | } | |
323 | else | |
324 | { | |
325 | Fsignal (Qquit, | |
326 | Fcons (build_string ("pasteboard doesn't contain valid data"), | |
327 | Qnil)); | |
328 | return Qnil; | |
329 | } | |
330 | } | |
331 | ||
332 | /* assume UTF8 */ | |
333 | NS_DURING | |
334 | { | |
335 | /* EOL conversion: PENDING- is this too simple? */ | |
336 | NSMutableString *mstr = [[str mutableCopy] autorelease]; | |
337 | [mstr replaceOccurrencesOfString: @"\r\n" withString: @"\n" | |
338 | options: NSLiteralSearch range: NSMakeRange (0, [mstr length])]; | |
339 | [mstr replaceOccurrencesOfString: @"\r" withString: @"\n" | |
340 | options: NSLiteralSearch range: NSMakeRange (0, [mstr length])]; | |
341 | ||
342 | utfStr = [mstr UTF8String]; | |
343 | if (!utfStr) | |
344 | utfStr = [mstr cString]; | |
345 | } | |
346 | NS_HANDLER | |
347 | { | |
348 | message1 ("ns_string_from_pasteboard: UTF8String failed\n"); | |
349 | utfStr = [str lossyCString]; | |
350 | } | |
351 | NS_ENDHANDLER | |
352 | ||
353 | return build_string (utfStr); | |
354 | } | |
355 | ||
356 | ||
357 | void | |
358 | ns_string_to_pasteboard (id pb, Lisp_Object str) | |
359 | { | |
360 | ns_string_to_pasteboard_internal (pb, str, nil); | |
361 | } | |
362 | ||
363 | ||
364 | ||
365 | /* ========================================================================== | |
366 | ||
367 | Lisp Defuns | |
368 | ||
369 | ========================================================================== */ | |
370 | ||
371 | ||
372 | DEFUN ("ns-own-selection-internal", Fns_own_selection_internal, | |
a5c55c69 CY |
373 | Sns_own_selection_internal, 2, 2, 0, |
374 | doc: /* Assert a selection. | |
375 | SELECTION-NAME is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
376 | VALUE is typically a string, or a cons of two markers, but may be | |
377 | anything that the functions on `selection-converter-alist' know about. */) | |
edfda783 AR |
378 | (selection_name, selection_value) |
379 | Lisp_Object selection_name, selection_value; | |
380 | { | |
381 | id pb; | |
382 | Lisp_Object old_value, new_value; | |
383 | ||
384 | check_ns (); | |
385 | CHECK_SYMBOL (selection_name); | |
386 | if (NILP (selection_value)) | |
387 | error ("selection-value may not be nil."); | |
388 | pb =[NSPasteboard pasteboardWithName: symbol_to_nsstring (selection_name)]; | |
389 | ns_declare_pasteboard (pb); | |
facfbbbd | 390 | old_value = assq_no_quit (selection_name, Vselection_alist); |
edfda783 AR |
391 | new_value = Fcons (selection_name, Fcons (selection_value, Qnil)); |
392 | if (NILP (old_value)) | |
facfbbbd | 393 | Vselection_alist = Fcons (new_value, Vselection_alist); |
edfda783 AR |
394 | else |
395 | Fsetcdr (old_value, Fcdr (new_value)); | |
396 | /* XXX An evil hack, but a necessary one I fear XXX */ | |
397 | { | |
398 | struct input_event ev; | |
399 | ev.kind = SELECTION_REQUEST_EVENT; | |
400 | ev.modifiers = 0; | |
401 | ev.code = 0; | |
facfbbbd SM |
402 | *(EMACS_INT*)(&(ev.x)) = (EMACS_INT)pb; // FIXME: BIG UGLY HACK!! |
403 | *(EMACS_INT*)(&(ev.y)) = (EMACS_INT)NSStringPboardType; | |
edfda783 AR |
404 | ns_handle_selection_request (&ev); |
405 | } | |
406 | return selection_value; | |
407 | } | |
408 | ||
409 | ||
9e50ff0c DN |
410 | DEFUN ("x-disown-selection-internal", Fx_disown_selection_internal, |
411 | Sx_disown_selection_internal, 1, 2, 0, | |
a5c55c69 | 412 | doc: /* If we own the selection SELECTION, disown it. */) |
edfda783 AR |
413 | (selection_name, time) |
414 | Lisp_Object selection_name, time; | |
415 | { | |
416 | id pb; | |
417 | check_ns (); | |
418 | CHECK_SYMBOL (selection_name); | |
419 | if (NILP (assq_no_quit (selection_name, Vselection_alist))) return Qnil; | |
420 | ||
421 | pb =[NSPasteboard pasteboardWithName: symbol_to_nsstring (selection_name)]; | |
422 | ns_undeclare_pasteboard (pb); | |
423 | return Qt; | |
424 | } | |
425 | ||
426 | ||
427 | DEFUN ("ns-selection-exists-p", Fns_selection_exists_p, Sns_selection_exists_p, | |
a5c55c69 CY |
428 | 0, 1, 0, doc: /* Whether there is an owner for the given selection. |
429 | The arg should be the name of the selection in question, typically one of | |
430 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
431 | \(Those are literal upper-case symbol names.) | |
432 | For convenience, the symbol nil is the same as `PRIMARY', | |
433 | and t is the same as `SECONDARY'.) */) | |
edfda783 AR |
434 | (selection) |
435 | Lisp_Object selection; | |
436 | { | |
437 | id pb; | |
438 | NSArray *types; | |
439 | ||
440 | check_ns (); | |
441 | CHECK_SYMBOL (selection); | |
442 | if (EQ (selection, Qnil)) selection = QPRIMARY; | |
443 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
444 | pb =[NSPasteboard pasteboardWithName: symbol_to_nsstring (selection)]; | |
445 | types =[pb types]; | |
446 | return ([types count] == 0) ? Qnil : Qt; | |
447 | } | |
448 | ||
449 | ||
450 | DEFUN ("ns-selection-owner-p", Fns_selection_owner_p, Sns_selection_owner_p, | |
451 | 0, 1, 0, | |
a5c55c69 CY |
452 | doc: /* Whether the current Emacs process owns the given selection. |
453 | The arg should be the name of the selection in question, typically one of | |
454 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
455 | \(Those are literal upper-case symbol names.) | |
456 | For convenience, the symbol nil is the same as `PRIMARY', | |
457 | and t is the same as `SECONDARY'.) */) | |
edfda783 AR |
458 | (selection) |
459 | Lisp_Object selection; | |
460 | { | |
461 | check_ns (); | |
462 | CHECK_SYMBOL (selection); | |
463 | if (EQ (selection, Qnil)) selection = QPRIMARY; | |
464 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
465 | return (NILP (Fassq (selection, Vselection_alist))) ? Qnil : Qt; | |
466 | } | |
467 | ||
468 | ||
9e50ff0c DN |
469 | DEFUN ("x-get-selection-internal", Fx_get_selection_internal, |
470 | Sx_get_selection_internal, 2, 2, 0, | |
a5c55c69 CY |
471 | doc: /* Return text selected from some pasteboard. |
472 | SELECTION is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
473 | \(Those are literal upper-case symbol names.) | |
474 | TYPE is the type of data desired, typically `STRING'. */) | |
edfda783 AR |
475 | (selection_name, target_type) |
476 | Lisp_Object selection_name, target_type; | |
477 | { | |
478 | Lisp_Object val; | |
479 | ||
480 | check_ns (); | |
481 | CHECK_SYMBOL (selection_name); | |
482 | CHECK_SYMBOL (target_type); | |
483 | val = ns_get_local_selection (selection_name, target_type); | |
484 | if (NILP (val)) | |
485 | val = ns_get_foreign_selection (selection_name, target_type); | |
486 | if (CONSP (val) && SYMBOLP (Fcar (val))) | |
487 | { | |
488 | val = Fcdr (val); | |
489 | if (CONSP (val) && NILP (Fcdr (val))) | |
490 | val = Fcar (val); | |
491 | } | |
492 | val = clean_local_selection_data (val); | |
493 | return val; | |
494 | } | |
495 | ||
496 | ||
497 | #ifdef CUT_BUFFER_SUPPORT | |
498 | DEFUN ("ns-get-cut-buffer-internal", Fns_get_cut_buffer_internal, | |
499 | Sns_get_cut_buffer_internal, 1, 1, 0, | |
a5c55c69 | 500 | doc: /* Returns the value of the named cut buffer. */) |
edfda783 AR |
501 | (buffer) |
502 | Lisp_Object buffer; | |
503 | { | |
504 | id pb; | |
505 | check_ns (); | |
506 | pb =[NSPasteboard pasteboardWithName: symbol_to_nsstring (buffer)]; | |
507 | return ns_string_from_pasteboard (pb); | |
508 | } | |
509 | ||
510 | ||
511 | DEFUN ("ns-rotate-cut-buffers-internal", Fns_rotate_cut_buffers_internal, | |
512 | Sns_rotate_cut_buffers_internal, 1, 1, 0, | |
a5c55c69 CY |
513 | doc: /* Rotate the values of the cut buffers by N steps. |
514 | Positive N means move values forward, negative means | |
515 | backward. CURRENTLY NOT IMPLEMENTED UNDER NEXTSTEP. */ ) | |
edfda783 AR |
516 | (n) |
517 | Lisp_Object n; | |
518 | { | |
519 | /* XXX This function is unimplemented under NeXTstep XXX */ | |
520 | Fsignal (Qquit, Fcons (build_string ( | |
521 | "Warning: ns-rotate-cut-buffers-internal not implemented\n"), Qnil)); | |
522 | return Qnil; | |
523 | } | |
524 | ||
525 | ||
526 | DEFUN ("ns-store-cut-buffer-internal", Fns_store_cut_buffer_internal, | |
527 | Sns_store_cut_buffer_internal, 2, 2, 0, | |
a5c55c69 | 528 | doc: /* Sets the value of the named cut buffer (typically CUT_BUFFER0). */) |
edfda783 AR |
529 | (buffer, string) |
530 | Lisp_Object buffer, string; | |
531 | { | |
532 | id pb; | |
533 | check_ns (); | |
534 | pb =[NSPasteboard pasteboardWithName: symbol_to_nsstring (buffer)]; | |
535 | ns_string_to_pasteboard (pb, string); | |
536 | return Qnil; | |
537 | } | |
538 | #endif | |
539 | ||
540 | ||
541 | void | |
542 | nxatoms_of_nsselect (void) | |
543 | { | |
544 | NXSecondaryPboard = @"Selection"; | |
545 | } | |
546 | ||
547 | void | |
548 | syms_of_nsselect (void) | |
549 | { | |
550 | QPRIMARY = intern ("PRIMARY"); staticpro (&QPRIMARY); | |
551 | QSECONDARY = intern ("SECONDARY"); staticpro (&QSECONDARY); | |
552 | QTEXT = intern ("TEXT"); staticpro (&QTEXT); | |
553 | QFILE_NAME = intern ("FILE_NAME"); staticpro (&QFILE_NAME); | |
554 | ||
9e50ff0c DN |
555 | defsubr (&Sx_disown_selection_internal); |
556 | defsubr (&Sx_get_selection_internal); | |
edfda783 AR |
557 | defsubr (&Sns_own_selection_internal); |
558 | defsubr (&Sns_selection_exists_p); | |
559 | defsubr (&Sns_selection_owner_p); | |
560 | #ifdef CUT_BUFFER_SUPPORT | |
561 | defsubr (&Sns_get_cut_buffer_internal); | |
562 | defsubr (&Sns_rotate_cut_buffers_internal); | |
563 | defsubr (&Sns_store_cut_buffer_internal); | |
564 | #endif | |
565 | ||
566 | Vselection_alist = Qnil; | |
567 | staticpro (&Vselection_alist); | |
568 | ||
569 | DEFVAR_LISP ("ns-sent-selection-hooks", &Vns_sent_selection_hooks, | |
570 | "A list of functions to be called when Emacs answers a selection request.\n\ | |
571 | The functions are called with four arguments:\n\ | |
572 | - the selection name (typically `PRIMARY', `SECONDARY', or `CLIPBOARD');\n\ | |
573 | - the selection-type which Emacs was asked to convert the\n\ | |
574 | selection into before sending (for example, `STRING' or `LENGTH');\n\ | |
575 | - a flag indicating success or failure for responding to the request.\n\ | |
576 | We might have failed (and declined the request) for any number of reasons,\n\ | |
577 | including being asked for a selection that we no longer own, or being asked\n\ | |
578 | to convert into a type that we don't know about or that is inappropriate.\n\ | |
579 | This hook doesn't let you change the behavior of Emacs's selection replies,\n\ | |
580 | it merely informs you that they have happened."); | |
581 | Vns_sent_selection_hooks = Qnil; | |
582 | ||
583 | DEFVAR_LISP ("selection-converter-alist", &Vselection_converter_alist, | |
584 | "An alist associating X Windows selection-types with functions.\n\ | |
585 | These functions are called to convert the selection, with three args:\n\ | |
586 | the name of the selection (typically `PRIMARY', `SECONDARY', or `CLIPBOARD');\n\ | |
587 | a desired type to which the selection should be converted;\n\ | |
588 | and the local selection value (whatever was given to `x-own-selection').\n\ | |
589 | \n\ | |
590 | The function should return the value to send to the X server\n\ | |
591 | \(typically a string). A return value of nil\n\ | |
592 | means that the conversion could not be done.\n\ | |
593 | A return value which is the symbol `NULL'\n\ | |
594 | means that a side-effect was executed,\n\ | |
595 | and there is no meaningful selection value."); | |
596 | Vselection_converter_alist = Qnil; | |
597 | ||
598 | DEFVAR_LISP ("ns-lost-selection-hooks", &Vns_lost_selection_hooks, | |
599 | "A list of functions to be called when Emacs loses an X selection.\n\ | |
600 | \(This happens when some other X client makes its own selection\n\ | |
601 | or when a Lisp program explicitly clears the selection.)\n\ | |
602 | The functions are called with one argument, the selection type\n\ | |
603 | \(a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD')."); | |
604 | Vns_lost_selection_hooks = Qnil; | |
605 | ||
606 | /* 23: { */ | |
edfda783 AR |
607 | Qforeign_selection = intern ("foreign-selection"); |
608 | staticpro (&Qforeign_selection); | |
609 | /* } */ | |
610 | ||
611 | } | |
0ae1e5e5 | 612 | |
2f8e74bb | 613 | // arch-tag: 39d1dde7-06a6-49ff-95a7-0e7af12d2218 |