Commit | Line | Data |
---|---|---|
ede4db72 | 1 | /* X Selection processing for emacs |
c6c5df7f | 2 | Copyright (C) 1993 Free Software Foundation. |
ede4db72 RS |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
c6c5df7f | 20 | /* x_handle_selection_notify |
80da0190 RS |
21 | x_reply_selection_request */ |
22 | ||
c6c5df7f | 23 | |
ede4db72 RS |
24 | /* Rewritten by jwz */ |
25 | ||
18160b98 | 26 | #include <config.h> |
ede4db72 | 27 | #include "lisp.h" |
7da64e5c RS |
28 | #if 0 |
29 | #include <stdio.h> /* termhooks.h needs this */ | |
30 | #include "termhooks.h" | |
31 | #endif | |
ede4db72 | 32 | #include "xterm.h" /* for all of the X includes */ |
7da64e5c RS |
33 | #include "dispextern.h" /* frame.h seems to want this */ |
34 | #include "frame.h" /* Need this to get the X window of selected_frame */ | |
9ac0d9e0 | 35 | #include "blockinput.h" |
7da64e5c RS |
36 | |
37 | #define xfree free | |
ede4db72 RS |
38 | |
39 | #define CUT_BUFFER_SUPPORT | |
40 | ||
41 | static Atom Xatom_CLIPBOARD, Xatom_TIMESTAMP, Xatom_TEXT, Xatom_DELETE, | |
42 | Xatom_MULTIPLE, Xatom_INCR, Xatom_EMACS_TMP, Xatom_TARGETS, Xatom_NULL, | |
43 | Xatom_ATOM_PAIR; | |
44 | ||
45 | Lisp_Object QPRIMARY, QSECONDARY, QSTRING, QINTEGER, QCLIPBOARD, QTIMESTAMP, | |
46 | QTEXT, QDELETE, QMULTIPLE, QINCR, QEMACS_TMP, QTARGETS, QATOM, QNULL, | |
47 | QATOM_PAIR; | |
48 | ||
49 | #ifdef CUT_BUFFER_SUPPORT | |
50 | Lisp_Object QCUT_BUFFER0, QCUT_BUFFER1, QCUT_BUFFER2, QCUT_BUFFER3, | |
51 | QCUT_BUFFER4, QCUT_BUFFER5, QCUT_BUFFER6, QCUT_BUFFER7; | |
52 | #endif | |
53 | ||
54 | Lisp_Object Vx_lost_selection_hooks; | |
55 | Lisp_Object Vx_sent_selection_hooks; | |
56 | ||
57 | /* If this is a smaller number than the max-request-size of the display, | |
58 | emacs will use INCR selection transfer when the selection is larger | |
59 | than this. The max-request-size is usually around 64k, so if you want | |
60 | emacs to use incremental selection transfers when the selection is | |
61 | smaller than that, set this. I added this mostly for debugging the | |
62 | incremental transfer stuff, but it might improve server performance. | |
63 | */ | |
64 | #define MAX_SELECTION_QUANTUM 0xFFFFFF | |
65 | ||
c3498e64 JB |
66 | #ifdef HAVE_X11R4 |
67 | #define SELECTION_QUANTUM(dpy) ((XMaxRequestSize(dpy) << 2) - 100) | |
68 | #else | |
69 | #define SELECTION_QUANTUM(dpy) (((dpy)->max_request_size << 2) - 100) | |
70 | #endif | |
ede4db72 | 71 | |
7da64e5c RS |
72 | /* The timestamp of the last input event Emacs received from the X server. */ |
73 | unsigned long last_event_timestamp; | |
ede4db72 RS |
74 | |
75 | /* This is an association list whose elements are of the form | |
76 | ( selection-name selection-value selection-timestamp ) | |
77 | selection-name is a lisp symbol, whose name is the name of an X Atom. | |
78 | selection-value is the value that emacs owns for that selection. | |
79 | It may be any kind of Lisp object. | |
80 | selection-timestamp is the time at which emacs began owning this selection, | |
81 | as a cons of two 16-bit numbers (making a 32 bit time.) | |
82 | If there is an entry in this alist, then it can be assumed that emacs owns | |
83 | that selection. | |
84 | The only (eq) parts of this list that are visible from Lisp are the | |
85 | selection-values. | |
86 | */ | |
87 | Lisp_Object Vselection_alist; | |
88 | ||
89 | /* This is an alist whose CARs are selection-types (whose names are the same | |
90 | as the names of X Atoms) and whose CDRs are the names of Lisp functions to | |
91 | call to convert the given Emacs selection value to a string representing | |
92 | the given selection type. This is for Lisp-level extension of the emacs | |
93 | selection handling. | |
94 | */ | |
95 | Lisp_Object Vselection_converter_alist; | |
96 | ||
97 | /* If the selection owner takes too long to reply to a selection request, | |
80da0190 | 98 | we give up on it. This is in milliseconds (0 = no timeout.) |
ede4db72 RS |
99 | */ |
100 | int x_selection_timeout; | |
101 | ||
102 | \f | |
103 | /* Utility functions */ | |
104 | ||
105 | static void lisp_data_to_selection_data (); | |
106 | static Lisp_Object selection_data_to_lisp_data (); | |
107 | static Lisp_Object x_get_window_property_as_lisp_data (); | |
108 | ||
ede4db72 RS |
109 | /* This converts a Lisp symbol to a server Atom, avoiding a server |
110 | roundtrip whenever possible. */ | |
111 | ||
112 | static Atom | |
113 | symbol_to_x_atom (display, sym) | |
114 | Display *display; | |
115 | Lisp_Object sym; | |
116 | { | |
117 | Atom val; | |
118 | if (NILP (sym)) return 0; | |
119 | if (EQ (sym, QPRIMARY)) return XA_PRIMARY; | |
120 | if (EQ (sym, QSECONDARY)) return XA_SECONDARY; | |
121 | if (EQ (sym, QSTRING)) return XA_STRING; | |
122 | if (EQ (sym, QINTEGER)) return XA_INTEGER; | |
123 | if (EQ (sym, QATOM)) return XA_ATOM; | |
124 | if (EQ (sym, QCLIPBOARD)) return Xatom_CLIPBOARD; | |
125 | if (EQ (sym, QTIMESTAMP)) return Xatom_TIMESTAMP; | |
126 | if (EQ (sym, QTEXT)) return Xatom_TEXT; | |
127 | if (EQ (sym, QDELETE)) return Xatom_DELETE; | |
128 | if (EQ (sym, QMULTIPLE)) return Xatom_MULTIPLE; | |
129 | if (EQ (sym, QINCR)) return Xatom_INCR; | |
130 | if (EQ (sym, QEMACS_TMP)) return Xatom_EMACS_TMP; | |
131 | if (EQ (sym, QTARGETS)) return Xatom_TARGETS; | |
132 | if (EQ (sym, QNULL)) return Xatom_NULL; | |
133 | #ifdef CUT_BUFFER_SUPPORT | |
134 | if (EQ (sym, QCUT_BUFFER0)) return XA_CUT_BUFFER0; | |
135 | if (EQ (sym, QCUT_BUFFER1)) return XA_CUT_BUFFER1; | |
136 | if (EQ (sym, QCUT_BUFFER2)) return XA_CUT_BUFFER2; | |
137 | if (EQ (sym, QCUT_BUFFER3)) return XA_CUT_BUFFER3; | |
138 | if (EQ (sym, QCUT_BUFFER4)) return XA_CUT_BUFFER4; | |
139 | if (EQ (sym, QCUT_BUFFER5)) return XA_CUT_BUFFER5; | |
140 | if (EQ (sym, QCUT_BUFFER6)) return XA_CUT_BUFFER6; | |
141 | if (EQ (sym, QCUT_BUFFER7)) return XA_CUT_BUFFER7; | |
142 | #endif | |
143 | if (!SYMBOLP (sym)) abort (); | |
144 | ||
145 | #if 0 | |
146 | fprintf (stderr, " XInternAtom %s\n", (char *) XSYMBOL (sym)->name->data); | |
147 | #endif | |
148 | BLOCK_INPUT; | |
149 | val = XInternAtom (display, (char *) XSYMBOL (sym)->name->data, False); | |
150 | UNBLOCK_INPUT; | |
151 | return val; | |
152 | } | |
153 | ||
154 | ||
155 | /* This converts a server Atom to a Lisp symbol, avoiding server roundtrips | |
156 | and calls to intern whenever possible. */ | |
157 | ||
158 | static Lisp_Object | |
159 | x_atom_to_symbol (display, atom) | |
160 | Display *display; | |
161 | Atom atom; | |
162 | { | |
163 | char *str; | |
164 | Lisp_Object val; | |
165 | if (! atom) return Qnil; | |
7da64e5c RS |
166 | switch (atom) |
167 | { | |
168 | case XA_PRIMARY: | |
169 | return QPRIMARY; | |
170 | case XA_SECONDARY: | |
171 | return QSECONDARY; | |
172 | case XA_STRING: | |
173 | return QSTRING; | |
174 | case XA_INTEGER: | |
175 | return QINTEGER; | |
176 | case XA_ATOM: | |
177 | return QATOM; | |
ede4db72 | 178 | #ifdef CUT_BUFFER_SUPPORT |
7da64e5c RS |
179 | case XA_CUT_BUFFER0: |
180 | return QCUT_BUFFER0; | |
181 | case XA_CUT_BUFFER1: | |
182 | return QCUT_BUFFER1; | |
183 | case XA_CUT_BUFFER2: | |
184 | return QCUT_BUFFER2; | |
185 | case XA_CUT_BUFFER3: | |
186 | return QCUT_BUFFER3; | |
187 | case XA_CUT_BUFFER4: | |
188 | return QCUT_BUFFER4; | |
189 | case XA_CUT_BUFFER5: | |
190 | return QCUT_BUFFER5; | |
191 | case XA_CUT_BUFFER6: | |
192 | return QCUT_BUFFER6; | |
193 | case XA_CUT_BUFFER7: | |
194 | return QCUT_BUFFER7; | |
ede4db72 | 195 | #endif |
7da64e5c RS |
196 | } |
197 | ||
198 | if (atom == Xatom_CLIPBOARD) | |
199 | return QCLIPBOARD; | |
200 | if (atom == Xatom_TIMESTAMP) | |
201 | return QTIMESTAMP; | |
202 | if (atom == Xatom_TEXT) | |
203 | return QTEXT; | |
204 | if (atom == Xatom_DELETE) | |
205 | return QDELETE; | |
206 | if (atom == Xatom_MULTIPLE) | |
207 | return QMULTIPLE; | |
208 | if (atom == Xatom_INCR) | |
209 | return QINCR; | |
210 | if (atom == Xatom_EMACS_TMP) | |
211 | return QEMACS_TMP; | |
212 | if (atom == Xatom_TARGETS) | |
213 | return QTARGETS; | |
214 | if (atom == Xatom_NULL) | |
215 | return QNULL; | |
ede4db72 RS |
216 | |
217 | BLOCK_INPUT; | |
218 | str = XGetAtomName (display, atom); | |
219 | UNBLOCK_INPUT; | |
220 | #if 0 | |
221 | fprintf (stderr, " XGetAtomName --> %s\n", str); | |
222 | #endif | |
223 | if (! str) return Qnil; | |
224 | val = intern (str); | |
225 | BLOCK_INPUT; | |
226 | XFree (str); | |
227 | UNBLOCK_INPUT; | |
228 | return val; | |
229 | } | |
8a89415e | 230 | \f |
ede4db72 RS |
231 | /* Do protocol to assert ourself as a selection owner. |
232 | Update the Vselection_alist so that we can reply to later requests for | |
233 | our selection. */ | |
234 | ||
235 | static void | |
236 | x_own_selection (selection_name, selection_value) | |
237 | Lisp_Object selection_name, selection_value; | |
238 | { | |
239 | Display *display = x_current_display; | |
240 | #ifdef X_TOOLKIT | |
241 | Window selecting_window = XtWindow (selected_screen->display.x->edit_widget); | |
242 | #else | |
243 | Window selecting_window = FRAME_X_WINDOW (selected_frame); | |
244 | #endif | |
7da64e5c | 245 | Time time = last_event_timestamp; |
ede4db72 RS |
246 | Atom selection_atom; |
247 | ||
248 | CHECK_SYMBOL (selection_name, 0); | |
249 | selection_atom = symbol_to_x_atom (display, selection_name); | |
250 | ||
251 | BLOCK_INPUT; | |
252 | XSetSelectionOwner (display, selection_atom, selecting_window, time); | |
253 | UNBLOCK_INPUT; | |
254 | ||
255 | /* Now update the local cache */ | |
256 | { | |
257 | Lisp_Object selection_time; | |
258 | Lisp_Object selection_data; | |
259 | Lisp_Object prev_value; | |
260 | ||
261 | selection_time = long_to_cons ((unsigned long) time); | |
262 | selection_data = Fcons (selection_name, | |
263 | Fcons (selection_value, | |
264 | Fcons (selection_time, Qnil))); | |
265 | prev_value = assq_no_quit (selection_name, Vselection_alist); | |
266 | ||
267 | Vselection_alist = Fcons (selection_data, Vselection_alist); | |
268 | ||
269 | /* If we already owned the selection, remove the old selection data. | |
270 | Perhaps we should destructively modify it instead. | |
271 | Don't use Fdelq as that may QUIT. */ | |
272 | if (!NILP (prev_value)) | |
273 | { | |
274 | Lisp_Object rest; /* we know it's not the CAR, so it's easy. */ | |
275 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) | |
276 | if (EQ (prev_value, Fcar (XCONS (rest)->cdr))) | |
277 | { | |
278 | XCONS (rest)->cdr = Fcdr (XCONS (rest)->cdr); | |
279 | break; | |
280 | } | |
281 | } | |
282 | } | |
283 | } | |
284 | \f | |
285 | /* Given a selection-name and desired type, look up our local copy of | |
286 | the selection value and convert it to the type. | |
287 | The value is nil or a string. | |
288 | This function is used both for remote requests | |
7da64e5c | 289 | and for local x-get-selection-internal. |
ede4db72 RS |
290 | |
291 | This calls random Lisp code, and may signal or gc. */ | |
292 | ||
293 | static Lisp_Object | |
294 | x_get_local_selection (selection_symbol, target_type) | |
295 | Lisp_Object selection_symbol, target_type; | |
296 | { | |
297 | Lisp_Object local_value; | |
298 | Lisp_Object handler_fn, value, type, check; | |
299 | int count; | |
300 | ||
301 | local_value = assq_no_quit (selection_symbol, Vselection_alist); | |
302 | ||
303 | if (NILP (local_value)) return Qnil; | |
304 | ||
305 | /* TIMESTAMP and MULTIPLE are special cases 'cause that's easiest. */ | |
306 | if (EQ (target_type, QTIMESTAMP)) | |
307 | { | |
308 | handler_fn = Qnil; | |
309 | value = XCONS (XCONS (XCONS (local_value)->cdr)->cdr)->car; | |
310 | } | |
311 | #if 0 | |
312 | else if (EQ (target_type, QDELETE)) | |
313 | { | |
314 | handler_fn = Qnil; | |
315 | Fx_disown_selection_internal | |
316 | (selection_symbol, | |
317 | XCONS (XCONS (XCONS (local_value)->cdr)->cdr)->car); | |
318 | value = QNULL; | |
319 | } | |
320 | #endif | |
321 | ||
322 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
323 | else if (CONSP (target_type) | |
324 | && XCONS (target_type)->car == QMULTIPLE) | |
325 | { | |
326 | Lisp_Object pairs = XCONS (target_type)->cdr; | |
327 | int size = XVECTOR (pairs)->size; | |
328 | int i; | |
329 | /* If the target is MULTIPLE, then target_type looks like | |
330 | (MULTIPLE . [[SELECTION1 TARGET1] [SELECTION2 TARGET2] ... ]) | |
331 | We modify the second element of each pair in the vector and | |
332 | return it as [[SELECTION1 <value1>] [SELECTION2 <value2>] ... ] | |
333 | */ | |
334 | for (i = 0; i < size; i++) | |
335 | { | |
336 | Lisp_Object pair = XVECTOR (pairs)->contents [i]; | |
337 | XVECTOR (pair)->contents [1] | |
338 | = x_get_local_selection (XVECTOR (pair)->contents [0], | |
339 | XVECTOR (pair)->contents [1]); | |
340 | } | |
341 | return pairs; | |
342 | } | |
343 | #endif | |
344 | else | |
345 | { | |
346 | /* Don't allow a quit within the converter. | |
347 | When the user types C-g, he would be surprised | |
348 | if by luck it came during a converter. */ | |
349 | count = specpdl_ptr - specpdl; | |
350 | specbind (Qinhibit_quit, Qt); | |
351 | ||
352 | CHECK_SYMBOL (target_type, 0); | |
353 | handler_fn = Fcdr (Fassq (target_type, Vselection_converter_alist)); | |
1eb4d468 RS |
354 | if (!NILP (handler_fn)) |
355 | value = call3 (handler_fn, | |
356 | selection_symbol, target_type, | |
357 | XCONS (XCONS (local_value)->cdr)->car); | |
358 | else | |
359 | value = Qnil; | |
ede4db72 RS |
360 | unbind_to (count, Qnil); |
361 | } | |
362 | ||
363 | /* Make sure this value is of a type that we could transmit | |
364 | to another X client. */ | |
a87ed99c | 365 | |
ede4db72 RS |
366 | check = value; |
367 | if (CONSP (value) | |
368 | && SYMBOLP (XCONS (value)->car)) | |
369 | type = XCONS (value)->car, | |
370 | check = XCONS (value)->cdr; | |
371 | ||
372 | if (STRINGP (check) | |
373 | || VECTORP (check) | |
374 | || SYMBOLP (check) | |
7da64e5c | 375 | || INTEGERP (check) |
ede4db72 RS |
376 | || NILP (value)) |
377 | return value; | |
a87ed99c | 378 | /* Check for a value that cons_to_long could handle. */ |
ede4db72 | 379 | else if (CONSP (check) |
7da64e5c RS |
380 | && INTEGERP (XCONS (check)->car) |
381 | && (INTEGERP (XCONS (check)->cdr) | |
ede4db72 RS |
382 | || |
383 | (CONSP (XCONS (check)->cdr) | |
7da64e5c | 384 | && INTEGERP (XCONS (XCONS (check)->cdr)->car) |
ede4db72 RS |
385 | && NILP (XCONS (XCONS (check)->cdr)->cdr)))) |
386 | return value; | |
387 | else | |
388 | return | |
389 | Fsignal (Qerror, | |
a87ed99c | 390 | Fcons (build_string ("invalid data returned by selection-conversion function"), |
ede4db72 RS |
391 | Fcons (handler_fn, Fcons (value, Qnil)))); |
392 | } | |
393 | \f | |
394 | /* Subroutines of x_reply_selection_request. */ | |
395 | ||
396 | /* Send a SelectionNotify event to the requestor with property=None, | |
397 | meaning we were unable to do what they wanted. */ | |
398 | ||
399 | static void | |
400 | x_decline_selection_request (event) | |
401 | struct input_event *event; | |
402 | { | |
403 | XSelectionEvent reply; | |
404 | reply.type = SelectionNotify; | |
405 | reply.display = SELECTION_EVENT_DISPLAY (event); | |
406 | reply.requestor = SELECTION_EVENT_REQUESTOR (event); | |
407 | reply.selection = SELECTION_EVENT_SELECTION (event); | |
408 | reply.time = SELECTION_EVENT_TIME (event); | |
409 | reply.target = SELECTION_EVENT_TARGET (event); | |
410 | reply.property = None; | |
411 | ||
412 | BLOCK_INPUT; | |
413 | (void) XSendEvent (reply.display, reply.requestor, False, 0L, | |
414 | (XEvent *) &reply); | |
415 | UNBLOCK_INPUT; | |
416 | } | |
417 | ||
418 | /* This is the selection request currently being processed. | |
419 | It is set to zero when the request is fully processed. */ | |
420 | static struct input_event *x_selection_current_request; | |
421 | ||
422 | /* Used as an unwind-protect clause so that, if a selection-converter signals | |
423 | an error, we tell the requestor that we were unable to do what they wanted | |
424 | before we throw to top-level or go into the debugger or whatever. */ | |
425 | ||
426 | static Lisp_Object | |
427 | x_selection_request_lisp_error (ignore) | |
428 | Lisp_Object ignore; | |
429 | { | |
430 | if (x_selection_current_request != 0) | |
431 | x_decline_selection_request (x_selection_current_request); | |
432 | return Qnil; | |
433 | } | |
434 | \f | |
d1f21a66 RS |
435 | |
436 | /* This stuff is so that INCR selections are reentrant (that is, so we can | |
437 | be servicing multiple INCR selection requests simultaneously.) I haven't | |
438 | actually tested that yet. */ | |
439 | ||
440 | /* Keep a list of the property changes that are awaited. */ | |
441 | ||
442 | struct prop_location | |
443 | { | |
444 | int identifier; | |
445 | Display *display; | |
446 | Window window; | |
447 | Atom property; | |
448 | int desired_state; | |
449 | int arrived; | |
450 | struct prop_location *next; | |
451 | }; | |
452 | ||
453 | static struct prop_location *expect_property_change (); | |
454 | static void wait_for_property_change (); | |
455 | static void unexpect_property_change (); | |
456 | static int waiting_for_other_props_on_window (); | |
457 | ||
458 | static int prop_location_identifier; | |
459 | ||
460 | static Lisp_Object property_change_reply; | |
461 | ||
462 | static struct prop_location *property_change_reply_object; | |
463 | ||
464 | static struct prop_location *property_change_wait_list; | |
465 | \f | |
ede4db72 RS |
466 | /* Send the reply to a selection request event EVENT. |
467 | TYPE is the type of selection data requested. | |
468 | DATA and SIZE describe the data to send, already converted. | |
469 | FORMAT is the unit-size (in bits) of the data to be transmitted. */ | |
470 | ||
471 | static void | |
472 | x_reply_selection_request (event, format, data, size, type) | |
473 | struct input_event *event; | |
474 | int format, size; | |
475 | unsigned char *data; | |
476 | Atom type; | |
477 | { | |
478 | XSelectionEvent reply; | |
479 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
480 | Window window = SELECTION_EVENT_REQUESTOR (event); | |
481 | int bytes_remaining; | |
482 | int format_bytes = format/8; | |
483 | int max_bytes = SELECTION_QUANTUM (display); | |
484 | ||
485 | if (max_bytes > MAX_SELECTION_QUANTUM) | |
486 | max_bytes = MAX_SELECTION_QUANTUM; | |
487 | ||
488 | reply.type = SelectionNotify; | |
489 | reply.display = display; | |
490 | reply.requestor = window; | |
491 | reply.selection = SELECTION_EVENT_SELECTION (event); | |
492 | reply.time = SELECTION_EVENT_TIME (event); | |
493 | reply.target = SELECTION_EVENT_TARGET (event); | |
494 | reply.property = SELECTION_EVENT_PROPERTY (event); | |
495 | if (reply.property == None) | |
496 | reply.property = reply.target; | |
497 | ||
498 | /* #### XChangeProperty can generate BadAlloc, and we must handle it! */ | |
499 | ||
ede4db72 RS |
500 | /* Store the data on the requested property. |
501 | If the selection is large, only store the first N bytes of it. | |
502 | */ | |
503 | bytes_remaining = size * format_bytes; | |
504 | if (bytes_remaining <= max_bytes) | |
505 | { | |
506 | /* Send all the data at once, with minimal handshaking. */ | |
507 | #if 0 | |
508 | fprintf (stderr,"\nStoring all %d\n", bytes_remaining); | |
509 | #endif | |
2f65feb6 | 510 | BLOCK_INPUT; |
ede4db72 RS |
511 | XChangeProperty (display, window, reply.property, type, format, |
512 | PropModeReplace, data, size); | |
513 | /* At this point, the selection was successfully stored; ack it. */ | |
2f65feb6 RS |
514 | XSendEvent (display, window, False, 0L, (XEvent *) &reply); |
515 | XFlushQueue (); | |
516 | UNBLOCK_INPUT; | |
ede4db72 RS |
517 | } |
518 | else | |
519 | { | |
520 | /* Send an INCR selection. */ | |
d1f21a66 | 521 | struct prop_location *wait_object; |
ede4db72 | 522 | |
2f65feb6 RS |
523 | BLOCK_INPUT; |
524 | ||
7da64e5c | 525 | if (x_window_to_frame (window)) /* #### debug */ |
ede4db72 RS |
526 | error ("attempt to transfer an INCR to ourself!"); |
527 | #if 0 | |
528 | fprintf (stderr, "\nINCR %d\n", bytes_remaining); | |
529 | #endif | |
d1f21a66 RS |
530 | wait_object = expect_property_change (display, window, reply.property, |
531 | PropertyDelete); | |
ede4db72 RS |
532 | |
533 | XChangeProperty (display, window, reply.property, Xatom_INCR, | |
534 | 32, PropModeReplace, (unsigned char *) | |
535 | &bytes_remaining, 1); | |
536 | XSelectInput (display, window, PropertyChangeMask); | |
537 | /* Tell 'em the INCR data is there... */ | |
538 | (void) XSendEvent (display, window, False, 0L, (XEvent *) &reply); | |
2f65feb6 RS |
539 | XFlushQueue (); |
540 | UNBLOCK_INPUT; | |
ede4db72 RS |
541 | |
542 | /* First, wait for the requestor to ack by deleting the property. | |
543 | This can run random lisp code (process handlers) or signal. */ | |
d1f21a66 | 544 | wait_for_property_change (wait_object); |
ede4db72 RS |
545 | |
546 | while (bytes_remaining) | |
547 | { | |
548 | int i = ((bytes_remaining < max_bytes) | |
549 | ? bytes_remaining | |
550 | : max_bytes); | |
2f65feb6 RS |
551 | |
552 | BLOCK_INPUT; | |
553 | ||
d1f21a66 RS |
554 | wait_object |
555 | = expect_property_change (display, window, reply.property, | |
556 | PropertyDelete); | |
ede4db72 RS |
557 | #if 0 |
558 | fprintf (stderr," INCR adding %d\n", i); | |
559 | #endif | |
560 | /* Append the next chunk of data to the property. */ | |
561 | XChangeProperty (display, window, reply.property, type, format, | |
562 | PropModeAppend, data, i / format_bytes); | |
563 | bytes_remaining -= i; | |
564 | data += i; | |
2f65feb6 RS |
565 | XFlushQueue (); |
566 | UNBLOCK_INPUT; | |
ede4db72 RS |
567 | |
568 | /* Now wait for the requestor to ack this chunk by deleting the | |
569 | property. This can run random lisp code or signal. | |
570 | */ | |
d1f21a66 | 571 | wait_for_property_change (wait_object); |
ede4db72 RS |
572 | } |
573 | /* Now write a zero-length chunk to the property to tell the requestor | |
574 | that we're done. */ | |
575 | #if 0 | |
576 | fprintf (stderr," INCR done\n"); | |
577 | #endif | |
2f65feb6 | 578 | BLOCK_INPUT; |
ede4db72 RS |
579 | if (! waiting_for_other_props_on_window (display, window)) |
580 | XSelectInput (display, window, 0L); | |
581 | ||
582 | XChangeProperty (display, window, reply.property, type, format, | |
583 | PropModeReplace, data, 0); | |
2f65feb6 RS |
584 | XFlushQueue (); |
585 | UNBLOCK_INPUT; | |
ede4db72 | 586 | } |
ede4db72 RS |
587 | } |
588 | \f | |
589 | /* Handle a SelectionRequest event EVENT. | |
590 | This is called from keyboard.c when such an event is found in the queue. */ | |
591 | ||
592 | void | |
593 | x_handle_selection_request (event) | |
594 | struct input_event *event; | |
595 | { | |
596 | struct gcpro gcpro1, gcpro2, gcpro3; | |
ede4db72 RS |
597 | Lisp_Object local_selection_data = Qnil; |
598 | Lisp_Object selection_symbol; | |
599 | Lisp_Object target_symbol = Qnil; | |
600 | Lisp_Object converted_selection = Qnil; | |
601 | Time local_selection_time; | |
602 | Lisp_Object successful_p = Qnil; | |
603 | int count; | |
604 | ||
605 | GCPRO3 (local_selection_data, converted_selection, target_symbol); | |
606 | ||
2f65feb6 | 607 | selection_symbol = x_atom_to_symbol (SELECTION_EVENT_DISPLAY (event), |
ede4db72 RS |
608 | SELECTION_EVENT_SELECTION (event)); |
609 | ||
610 | local_selection_data = assq_no_quit (selection_symbol, Vselection_alist); | |
ede4db72 RS |
611 | |
612 | if (NILP (local_selection_data)) | |
613 | { | |
614 | /* Someone asked for the selection, but we don't have it any more. | |
615 | */ | |
616 | x_decline_selection_request (event); | |
617 | goto DONE; | |
618 | } | |
619 | ||
620 | local_selection_time = (Time) | |
621 | cons_to_long (XCONS (XCONS (XCONS (local_selection_data)->cdr)->cdr)->car); | |
622 | ||
623 | if (SELECTION_EVENT_TIME (event) != CurrentTime | |
7da64e5c | 624 | && local_selection_time > SELECTION_EVENT_TIME (event)) |
ede4db72 RS |
625 | { |
626 | /* Someone asked for the selection, and we have one, but not the one | |
627 | they're looking for. | |
628 | */ | |
629 | x_decline_selection_request (event); | |
630 | goto DONE; | |
631 | } | |
632 | ||
633 | count = specpdl_ptr - specpdl; | |
634 | x_selection_current_request = event; | |
635 | record_unwind_protect (x_selection_request_lisp_error, Qnil); | |
636 | ||
2f65feb6 | 637 | target_symbol = x_atom_to_symbol (SELECTION_EVENT_DISPLAY (event), |
ede4db72 RS |
638 | SELECTION_EVENT_TARGET (event)); |
639 | ||
640 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
641 | if (EQ (target_symbol, QMULTIPLE)) | |
642 | target_symbol = fetch_multiple_target (event); | |
643 | #endif | |
644 | ||
645 | /* Convert lisp objects back into binary data */ | |
646 | ||
647 | converted_selection | |
648 | = x_get_local_selection (selection_symbol, target_symbol); | |
649 | ||
650 | if (! NILP (converted_selection)) | |
651 | { | |
652 | unsigned char *data; | |
653 | unsigned int size; | |
654 | int format; | |
655 | Atom type; | |
aca39f42 RS |
656 | int nofree; |
657 | ||
2f65feb6 RS |
658 | lisp_data_to_selection_data (SELECTION_EVENT_DISPLAY (event), |
659 | converted_selection, | |
aca39f42 | 660 | &data, &type, &size, &format, &nofree); |
ede4db72 RS |
661 | |
662 | x_reply_selection_request (event, format, data, size, type); | |
663 | successful_p = Qt; | |
664 | ||
665 | /* Indicate we have successfully processed this event. */ | |
7da64e5c | 666 | x_selection_current_request = 0; |
ede4db72 | 667 | |
aca39f42 RS |
668 | if (!nofree) |
669 | xfree (data); | |
ede4db72 RS |
670 | } |
671 | unbind_to (count, Qnil); | |
672 | ||
673 | DONE: | |
674 | ||
675 | UNGCPRO; | |
676 | ||
677 | /* Let random lisp code notice that the selection has been asked for. */ | |
678 | { | |
679 | Lisp_Object rest = Vx_sent_selection_hooks; | |
680 | if (!EQ (rest, Qunbound)) | |
681 | for (; CONSP (rest); rest = Fcdr (rest)) | |
682 | call3 (Fcar (rest), selection_symbol, target_symbol, successful_p); | |
683 | } | |
684 | } | |
685 | \f | |
686 | /* Handle a SelectionClear event EVENT, which indicates that some other | |
687 | client cleared out our previously asserted selection. | |
688 | This is called from keyboard.c when such an event is found in the queue. */ | |
689 | ||
690 | void | |
691 | x_handle_selection_clear (event) | |
692 | struct input_event *event; | |
693 | { | |
694 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
695 | Atom selection = SELECTION_EVENT_SELECTION (event); | |
696 | Time changed_owner_time = SELECTION_EVENT_TIME (event); | |
697 | ||
698 | Lisp_Object selection_symbol, local_selection_data; | |
699 | Time local_selection_time; | |
700 | ||
701 | selection_symbol = x_atom_to_symbol (display, selection); | |
702 | ||
703 | local_selection_data = assq_no_quit (selection_symbol, Vselection_alist); | |
704 | ||
705 | /* Well, we already believe that we don't own it, so that's just fine. */ | |
706 | if (NILP (local_selection_data)) return; | |
707 | ||
708 | local_selection_time = (Time) | |
709 | cons_to_long (XCONS (XCONS (XCONS (local_selection_data)->cdr)->cdr)->car); | |
710 | ||
711 | /* This SelectionClear is for a selection that we no longer own, so we can | |
712 | disregard it. (That is, we have reasserted the selection since this | |
713 | request was generated.) */ | |
714 | ||
715 | if (changed_owner_time != CurrentTime | |
716 | && local_selection_time > changed_owner_time) | |
717 | return; | |
718 | ||
719 | /* Otherwise, we're really honest and truly being told to drop it. | |
720 | Don't use Fdelq as that may QUIT;. */ | |
721 | ||
722 | if (EQ (local_selection_data, Fcar (Vselection_alist))) | |
723 | Vselection_alist = Fcdr (Vselection_alist); | |
724 | else | |
725 | { | |
726 | Lisp_Object rest; | |
727 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) | |
728 | if (EQ (local_selection_data, Fcar (XCONS (rest)->cdr))) | |
729 | { | |
730 | XCONS (rest)->cdr = Fcdr (XCONS (rest)->cdr); | |
731 | break; | |
732 | } | |
733 | } | |
734 | ||
735 | /* Let random lisp code notice that the selection has been stolen. */ | |
736 | ||
737 | { | |
d1f21a66 RS |
738 | Lisp_Object rest; |
739 | rest = Vx_lost_selection_hooks; | |
ede4db72 | 740 | if (!EQ (rest, Qunbound)) |
d1f21a66 RS |
741 | { |
742 | for (; CONSP (rest); rest = Fcdr (rest)) | |
743 | call1 (Fcar (rest), selection_symbol); | |
7c6b2ea4 | 744 | prepare_menu_bars (); |
d1f21a66 RS |
745 | redisplay_preserve_echo_area (); |
746 | } | |
ede4db72 RS |
747 | } |
748 | } | |
749 | ||
750 | \f | |
ede4db72 RS |
751 | /* Nonzero if any properties for DISPLAY and WINDOW |
752 | are on the list of what we are waiting for. */ | |
753 | ||
754 | static int | |
755 | waiting_for_other_props_on_window (display, window) | |
756 | Display *display; | |
757 | Window window; | |
758 | { | |
759 | struct prop_location *rest = property_change_wait_list; | |
760 | while (rest) | |
761 | if (rest->display == display && rest->window == window) | |
762 | return 1; | |
763 | else | |
764 | rest = rest->next; | |
765 | return 0; | |
766 | } | |
767 | ||
768 | /* Add an entry to the list of property changes we are waiting for. | |
769 | DISPLAY, WINDOW, PROPERTY, STATE describe what we will wait for. | |
770 | The return value is a number that uniquely identifies | |
771 | this awaited property change. */ | |
772 | ||
d1f21a66 | 773 | static struct prop_location * |
ede4db72 RS |
774 | expect_property_change (display, window, property, state) |
775 | Display *display; | |
776 | Window window; | |
777 | Lisp_Object property; | |
778 | int state; | |
779 | { | |
780 | struct prop_location *pl | |
781 | = (struct prop_location *) xmalloc (sizeof (struct prop_location)); | |
2f65feb6 | 782 | pl->identifier = ++prop_location_identifier; |
ede4db72 RS |
783 | pl->display = display; |
784 | pl->window = window; | |
785 | pl->property = property; | |
786 | pl->desired_state = state; | |
787 | pl->next = property_change_wait_list; | |
d1f21a66 | 788 | pl->arrived = 0; |
ede4db72 | 789 | property_change_wait_list = pl; |
d1f21a66 | 790 | return pl; |
ede4db72 RS |
791 | } |
792 | ||
793 | /* Delete an entry from the list of property changes we are waiting for. | |
2f65feb6 | 794 | IDENTIFIER is the number that uniquely identifies the entry. */ |
ede4db72 RS |
795 | |
796 | static void | |
d1f21a66 RS |
797 | unexpect_property_change (location) |
798 | struct prop_location *location; | |
ede4db72 RS |
799 | { |
800 | struct prop_location *prev = 0, *rest = property_change_wait_list; | |
801 | while (rest) | |
802 | { | |
d1f21a66 | 803 | if (rest == location) |
ede4db72 RS |
804 | { |
805 | if (prev) | |
806 | prev->next = rest->next; | |
807 | else | |
808 | property_change_wait_list = rest->next; | |
809 | xfree (rest); | |
810 | return; | |
811 | } | |
812 | prev = rest; | |
813 | rest = rest->next; | |
814 | } | |
815 | } | |
816 | ||
2f65feb6 RS |
817 | /* Remove the property change expectation element for IDENTIFIER. */ |
818 | ||
819 | static Lisp_Object | |
820 | wait_for_property_change_unwind (identifierval) | |
821 | Lisp_Object identifierval; | |
822 | { | |
d1f21a66 | 823 | unexpect_property_change (XPNTR (identifierval)); |
2f65feb6 RS |
824 | } |
825 | ||
ede4db72 | 826 | /* Actually wait for a property change. |
2f65feb6 | 827 | IDENTIFIER should be the value that expect_property_change returned. */ |
ede4db72 RS |
828 | |
829 | static void | |
d1f21a66 RS |
830 | wait_for_property_change (location) |
831 | struct prop_location *location; | |
ede4db72 | 832 | { |
2f65feb6 RS |
833 | int secs, usecs; |
834 | int count = specpdl_ptr - specpdl; | |
d1f21a66 RS |
835 | Lisp_Object tem; |
836 | ||
837 | XSET (tem, Lisp_Cons, location); | |
2f65feb6 RS |
838 | |
839 | /* Make sure to do unexpect_property_change if we quit or err. */ | |
d1f21a66 | 840 | record_unwind_protect (wait_for_property_change_unwind, tem); |
2f65feb6 | 841 | |
ede4db72 | 842 | XCONS (property_change_reply)->car = Qnil; |
2f65feb6 | 843 | |
d1f21a66 RS |
844 | if (! location->arrived) |
845 | { | |
846 | property_change_reply_object = location; | |
847 | secs = x_selection_timeout / 1000; | |
848 | usecs = (x_selection_timeout % 1000) * 1000; | |
849 | wait_reading_process_input (secs, usecs, property_change_reply, 0); | |
850 | ||
851 | if (NILP (XCONS (property_change_reply)->car)) | |
852 | error ("timed out waiting for property-notify event"); | |
853 | } | |
2f65feb6 RS |
854 | |
855 | unbind_to (count, Qnil); | |
ede4db72 RS |
856 | } |
857 | ||
858 | /* Called from XTread_socket in response to a PropertyNotify event. */ | |
859 | ||
860 | void | |
861 | x_handle_property_notify (event) | |
862 | XPropertyEvent *event; | |
863 | { | |
864 | struct prop_location *prev = 0, *rest = property_change_wait_list; | |
865 | while (rest) | |
866 | { | |
867 | if (rest->property == event->atom | |
868 | && rest->window == event->window | |
869 | && rest->display == event->display | |
870 | && rest->desired_state == event->state) | |
871 | { | |
872 | #if 0 | |
873 | fprintf (stderr, "Saw expected prop-%s on %s\n", | |
874 | (event->state == PropertyDelete ? "delete" : "change"), | |
875 | (char *) XSYMBOL (x_atom_to_symbol (event->display, | |
876 | event->atom)) | |
877 | ->name->data); | |
878 | #endif | |
879 | ||
d1f21a66 RS |
880 | rest->arrived = 1; |
881 | ||
ede4db72 RS |
882 | /* If this is the one wait_for_property_change is waiting for, |
883 | tell it to wake up. */ | |
d1f21a66 | 884 | if (rest == property_change_reply_object) |
ede4db72 RS |
885 | XCONS (property_change_reply)->car = Qt; |
886 | ||
887 | if (prev) | |
888 | prev->next = rest->next; | |
889 | else | |
890 | property_change_wait_list = rest->next; | |
891 | xfree (rest); | |
892 | return; | |
893 | } | |
894 | prev = rest; | |
895 | rest = rest->next; | |
896 | } | |
897 | #if 0 | |
898 | fprintf (stderr, "Saw UNexpected prop-%s on %s\n", | |
899 | (event->state == PropertyDelete ? "delete" : "change"), | |
900 | (char *) XSYMBOL (x_atom_to_symbol (event->display, event->atom)) | |
901 | ->name->data); | |
902 | #endif | |
903 | } | |
904 | ||
905 | ||
906 | \f | |
907 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
908 | ||
909 | static Lisp_Object | |
910 | fetch_multiple_target (event) | |
911 | XSelectionRequestEvent *event; | |
912 | { | |
913 | Display *display = event->display; | |
914 | Window window = event->requestor; | |
915 | Atom target = event->target; | |
916 | Atom selection_atom = event->selection; | |
917 | int result; | |
918 | ||
919 | return | |
920 | Fcons (QMULTIPLE, | |
921 | x_get_window_property_as_lisp_data (display, window, target, | |
922 | QMULTIPLE, selection_atom)); | |
923 | } | |
924 | ||
925 | static Lisp_Object | |
926 | copy_multiple_data (obj) | |
927 | Lisp_Object obj; | |
928 | { | |
929 | Lisp_Object vec; | |
930 | int i; | |
931 | int size; | |
932 | if (CONSP (obj)) | |
933 | return Fcons (XCONS (obj)->car, copy_multiple_data (XCONS (obj)->cdr)); | |
934 | ||
935 | CHECK_VECTOR (obj, 0); | |
936 | vec = Fmake_vector (size = XVECTOR (obj)->size, Qnil); | |
937 | for (i = 0; i < size; i++) | |
938 | { | |
939 | Lisp_Object vec2 = XVECTOR (obj)->contents [i]; | |
940 | CHECK_VECTOR (vec2, 0); | |
941 | if (XVECTOR (vec2)->size != 2) | |
942 | /* ??? Confusing error message */ | |
943 | Fsignal (Qerror, Fcons (build_string ("vectors must be of length 2"), | |
944 | Fcons (vec2, Qnil))); | |
945 | XVECTOR (vec)->contents [i] = Fmake_vector (2, Qnil); | |
946 | XVECTOR (XVECTOR (vec)->contents [i])->contents [0] | |
947 | = XVECTOR (vec2)->contents [0]; | |
948 | XVECTOR (XVECTOR (vec)->contents [i])->contents [1] | |
949 | = XVECTOR (vec2)->contents [1]; | |
950 | } | |
951 | return vec; | |
952 | } | |
953 | ||
954 | #endif | |
955 | ||
956 | \f | |
957 | /* Variables for communication with x_handle_selection_notify. */ | |
958 | static Atom reading_which_selection; | |
959 | static Lisp_Object reading_selection_reply; | |
960 | static Window reading_selection_window; | |
961 | ||
962 | /* Do protocol to read selection-data from the server. | |
963 | Converts this to Lisp data and returns it. */ | |
964 | ||
965 | static Lisp_Object | |
966 | x_get_foreign_selection (selection_symbol, target_type) | |
967 | Lisp_Object selection_symbol, target_type; | |
968 | { | |
969 | Display *display = x_current_display; | |
970 | #ifdef X_TOOLKIT | |
7da64e5c | 971 | Window requestor_window = XtWindow (selected_screen->display.x->edit_widget); |
ede4db72 | 972 | #else |
7da64e5c | 973 | Window requestor_window = FRAME_X_WINDOW (selected_frame); |
ede4db72 | 974 | #endif |
7da64e5c | 975 | Time requestor_time = last_event_timestamp; |
ede4db72 RS |
976 | Atom target_property = Xatom_EMACS_TMP; |
977 | Atom selection_atom = symbol_to_x_atom (display, selection_symbol); | |
978 | Atom type_atom; | |
80da0190 | 979 | int secs, usecs; |
ede4db72 RS |
980 | |
981 | if (CONSP (target_type)) | |
982 | type_atom = symbol_to_x_atom (display, XCONS (target_type)->car); | |
983 | else | |
984 | type_atom = symbol_to_x_atom (display, target_type); | |
985 | ||
986 | BLOCK_INPUT; | |
7c6b2ea4 | 987 | x_catch_errors (); |
ede4db72 RS |
988 | XConvertSelection (display, selection_atom, type_atom, target_property, |
989 | requestor_window, requestor_time); | |
a87ed99c | 990 | XFlushQueue (); |
ede4db72 RS |
991 | |
992 | /* Prepare to block until the reply has been read. */ | |
993 | reading_selection_window = requestor_window; | |
994 | reading_which_selection = selection_atom; | |
995 | XCONS (reading_selection_reply)->car = Qnil; | |
996 | UNBLOCK_INPUT; | |
997 | ||
80da0190 RS |
998 | /* This allows quits. Also, don't wait forever. */ |
999 | secs = x_selection_timeout / 1000; | |
1000 | usecs = (x_selection_timeout % 1000) * 1000; | |
1001 | wait_reading_process_input (secs, usecs, reading_selection_reply, 0); | |
ede4db72 | 1002 | |
7c6b2ea4 RS |
1003 | BLOCK_INPUT; |
1004 | x_check_errors ("Cannot get selection: %s"); | |
1005 | x_uncatch_errors (); | |
1006 | UNBLOCK_INPUT; | |
1007 | ||
ede4db72 RS |
1008 | if (NILP (XCONS (reading_selection_reply)->car)) |
1009 | error ("timed out waiting for reply from selection owner"); | |
1010 | ||
1011 | /* Otherwise, the selection is waiting for us on the requested property. */ | |
1012 | return | |
1013 | x_get_window_property_as_lisp_data (display, requestor_window, | |
1014 | target_property, target_type, | |
1015 | selection_atom); | |
1016 | } | |
1017 | \f | |
1018 | /* Subroutines of x_get_window_property_as_lisp_data */ | |
1019 | ||
1020 | static void | |
1021 | x_get_window_property (display, window, property, data_ret, bytes_ret, | |
1022 | actual_type_ret, actual_format_ret, actual_size_ret, | |
1023 | delete_p) | |
1024 | Display *display; | |
1025 | Window window; | |
1026 | Atom property; | |
1027 | unsigned char **data_ret; | |
1028 | int *bytes_ret; | |
1029 | Atom *actual_type_ret; | |
1030 | int *actual_format_ret; | |
1031 | unsigned long *actual_size_ret; | |
1032 | int delete_p; | |
1033 | { | |
1034 | int total_size; | |
1035 | unsigned long bytes_remaining; | |
1036 | int offset = 0; | |
1037 | unsigned char *tmp_data = 0; | |
1038 | int result; | |
1039 | int buffer_size = SELECTION_QUANTUM (display); | |
1040 | if (buffer_size > MAX_SELECTION_QUANTUM) buffer_size = MAX_SELECTION_QUANTUM; | |
1041 | ||
1042 | BLOCK_INPUT; | |
1043 | /* First probe the thing to find out how big it is. */ | |
1044 | result = XGetWindowProperty (display, window, property, | |
1045 | 0, 0, False, AnyPropertyType, | |
1046 | actual_type_ret, actual_format_ret, | |
1047 | actual_size_ret, | |
1048 | &bytes_remaining, &tmp_data); | |
ede4db72 RS |
1049 | if (result != Success) |
1050 | { | |
2f65feb6 | 1051 | UNBLOCK_INPUT; |
ede4db72 RS |
1052 | *data_ret = 0; |
1053 | *bytes_ret = 0; | |
1054 | return; | |
1055 | } | |
2f65feb6 | 1056 | xfree ((char *) tmp_data); |
ede4db72 RS |
1057 | |
1058 | if (*actual_type_ret == None || *actual_format_ret == 0) | |
1059 | { | |
2f65feb6 | 1060 | UNBLOCK_INPUT; |
ede4db72 RS |
1061 | return; |
1062 | } | |
1063 | ||
1064 | total_size = bytes_remaining + 1; | |
1065 | *data_ret = (unsigned char *) xmalloc (total_size); | |
1066 | ||
1067 | /* Now read, until weve gotten it all. */ | |
ede4db72 RS |
1068 | while (bytes_remaining) |
1069 | { | |
1070 | #if 0 | |
1071 | int last = bytes_remaining; | |
1072 | #endif | |
1073 | result | |
1074 | = XGetWindowProperty (display, window, property, | |
1075 | offset/4, buffer_size/4, | |
2f65feb6 | 1076 | False, |
ede4db72 RS |
1077 | AnyPropertyType, |
1078 | actual_type_ret, actual_format_ret, | |
1079 | actual_size_ret, &bytes_remaining, &tmp_data); | |
1080 | #if 0 | |
1081 | fprintf (stderr, "<< read %d\n", last-bytes_remaining); | |
1082 | #endif | |
1083 | /* If this doesn't return Success at this point, it means that | |
1084 | some clod deleted the selection while we were in the midst of | |
1085 | reading it. Deal with that, I guess.... | |
1086 | */ | |
1087 | if (result != Success) break; | |
1088 | *actual_size_ret *= *actual_format_ret / 8; | |
1089 | bcopy (tmp_data, (*data_ret) + offset, *actual_size_ret); | |
1090 | offset += *actual_size_ret; | |
2f65feb6 | 1091 | xfree ((char *) tmp_data); |
ede4db72 | 1092 | } |
2f65feb6 RS |
1093 | |
1094 | XFlushQueue (); | |
ede4db72 RS |
1095 | UNBLOCK_INPUT; |
1096 | *bytes_ret = offset; | |
1097 | } | |
1098 | \f | |
1099 | static void | |
1100 | receive_incremental_selection (display, window, property, target_type, | |
1101 | min_size_bytes, data_ret, size_bytes_ret, | |
1102 | type_ret, format_ret, size_ret) | |
1103 | Display *display; | |
1104 | Window window; | |
1105 | Atom property; | |
1106 | Lisp_Object target_type; /* for error messages only */ | |
1107 | unsigned int min_size_bytes; | |
1108 | unsigned char **data_ret; | |
1109 | int *size_bytes_ret; | |
1110 | Atom *type_ret; | |
1111 | unsigned long *size_ret; | |
1112 | int *format_ret; | |
1113 | { | |
1114 | int offset = 0; | |
d1f21a66 | 1115 | struct prop_location *wait_object; |
ede4db72 RS |
1116 | *size_bytes_ret = min_size_bytes; |
1117 | *data_ret = (unsigned char *) xmalloc (*size_bytes_ret); | |
1118 | #if 0 | |
1119 | fprintf (stderr, "\nread INCR %d\n", min_size_bytes); | |
1120 | #endif | |
2f65feb6 RS |
1121 | |
1122 | /* At this point, we have read an INCR property. | |
1123 | Delete the property to ack it. | |
1124 | (But first, prepare to receive the next event in this handshake.) | |
ede4db72 RS |
1125 | |
1126 | Now, we must loop, waiting for the sending window to put a value on | |
1127 | that property, then reading the property, then deleting it to ack. | |
1128 | We are done when the sender places a property of length 0. | |
1129 | */ | |
2f65feb6 RS |
1130 | BLOCK_INPUT; |
1131 | XSelectInput (display, window, STANDARD_EVENT_SET | PropertyChangeMask); | |
1132 | XDeleteProperty (display, window, property); | |
d1f21a66 RS |
1133 | wait_object = expect_property_change (display, window, property, |
1134 | PropertyNewValue); | |
2f65feb6 RS |
1135 | XFlushQueue (); |
1136 | UNBLOCK_INPUT; | |
1137 | ||
ede4db72 RS |
1138 | while (1) |
1139 | { | |
1140 | unsigned char *tmp_data; | |
1141 | int tmp_size_bytes; | |
d1f21a66 | 1142 | wait_for_property_change (wait_object); |
ede4db72 RS |
1143 | /* expect it again immediately, because x_get_window_property may |
1144 | .. no it wont, I dont get it. | |
1145 | .. Ok, I get it now, the Xt code that implements INCR is broken. | |
1146 | */ | |
ede4db72 RS |
1147 | x_get_window_property (display, window, property, |
1148 | &tmp_data, &tmp_size_bytes, | |
1149 | type_ret, format_ret, size_ret, 1); | |
1150 | ||
1151 | if (tmp_size_bytes == 0) /* we're done */ | |
1152 | { | |
1153 | #if 0 | |
1154 | fprintf (stderr, " read INCR done\n"); | |
1155 | #endif | |
2f65feb6 RS |
1156 | if (! waiting_for_other_props_on_window (display, window)) |
1157 | XSelectInput (display, window, STANDARD_EVENT_SET); | |
d1f21a66 | 1158 | unexpect_property_change (wait_object); |
ede4db72 RS |
1159 | if (tmp_data) xfree (tmp_data); |
1160 | break; | |
1161 | } | |
2f65feb6 RS |
1162 | |
1163 | BLOCK_INPUT; | |
1164 | XDeleteProperty (display, window, property); | |
d1f21a66 RS |
1165 | wait_object = expect_property_change (display, window, property, |
1166 | PropertyNewValue); | |
2f65feb6 RS |
1167 | XFlushQueue (); |
1168 | UNBLOCK_INPUT; | |
1169 | ||
ede4db72 RS |
1170 | #if 0 |
1171 | fprintf (stderr, " read INCR %d\n", tmp_size_bytes); | |
1172 | #endif | |
1173 | if (*size_bytes_ret < offset + tmp_size_bytes) | |
1174 | { | |
1175 | #if 0 | |
1176 | fprintf (stderr, " read INCR realloc %d -> %d\n", | |
1177 | *size_bytes_ret, offset + tmp_size_bytes); | |
1178 | #endif | |
1179 | *size_bytes_ret = offset + tmp_size_bytes; | |
1180 | *data_ret = (unsigned char *) xrealloc (*data_ret, *size_bytes_ret); | |
1181 | } | |
018cfa07 | 1182 | bcopy (tmp_data, (*data_ret) + offset, tmp_size_bytes); |
ede4db72 RS |
1183 | offset += tmp_size_bytes; |
1184 | xfree (tmp_data); | |
1185 | } | |
1186 | } | |
1187 | \f | |
1188 | /* Once a requested selection is "ready" (we got a SelectionNotify event), | |
1189 | fetch value from property PROPERTY of X window WINDOW on display DISPLAY. | |
1190 | TARGET_TYPE and SELECTION_ATOM are used in error message if this fails. */ | |
1191 | ||
1192 | static Lisp_Object | |
1193 | x_get_window_property_as_lisp_data (display, window, property, target_type, | |
1194 | selection_atom) | |
1195 | Display *display; | |
1196 | Window window; | |
1197 | Atom property; | |
1198 | Lisp_Object target_type; /* for error messages only */ | |
1199 | Atom selection_atom; /* for error messages only */ | |
1200 | { | |
1201 | Atom actual_type; | |
1202 | int actual_format; | |
1203 | unsigned long actual_size; | |
1204 | unsigned char *data = 0; | |
1205 | int bytes = 0; | |
1206 | Lisp_Object val; | |
1207 | ||
1208 | x_get_window_property (display, window, property, &data, &bytes, | |
1209 | &actual_type, &actual_format, &actual_size, 1); | |
1210 | if (! data) | |
1211 | { | |
1212 | int there_is_a_selection_owner; | |
1213 | BLOCK_INPUT; | |
1214 | there_is_a_selection_owner | |
1215 | = XGetSelectionOwner (display, selection_atom); | |
1216 | UNBLOCK_INPUT; | |
1217 | while (1) /* Note debugger can no longer return, so this is obsolete */ | |
1218 | Fsignal (Qerror, | |
1219 | there_is_a_selection_owner ? | |
1220 | Fcons (build_string ("selection owner couldn't convert"), | |
1221 | actual_type | |
1222 | ? Fcons (target_type, | |
1223 | Fcons (x_atom_to_symbol (display, actual_type), | |
1224 | Qnil)) | |
1225 | : Fcons (target_type, Qnil)) | |
1226 | : Fcons (build_string ("no selection"), | |
1227 | Fcons (x_atom_to_symbol (display, selection_atom), | |
1228 | Qnil))); | |
1229 | } | |
1230 | ||
1231 | if (actual_type == Xatom_INCR) | |
1232 | { | |
1233 | /* That wasn't really the data, just the beginning. */ | |
1234 | ||
1235 | unsigned int min_size_bytes = * ((unsigned int *) data); | |
1236 | BLOCK_INPUT; | |
1237 | XFree ((char *) data); | |
1238 | UNBLOCK_INPUT; | |
1239 | receive_incremental_selection (display, window, property, target_type, | |
1240 | min_size_bytes, &data, &bytes, | |
1241 | &actual_type, &actual_format, | |
1242 | &actual_size); | |
1243 | } | |
1244 | ||
2f65feb6 RS |
1245 | BLOCK_INPUT; |
1246 | XDeleteProperty (display, window, property); | |
1247 | XFlushQueue (); | |
1248 | UNBLOCK_INPUT; | |
1249 | ||
ede4db72 RS |
1250 | /* It's been read. Now convert it to a lisp object in some semi-rational |
1251 | manner. */ | |
1252 | val = selection_data_to_lisp_data (display, data, bytes, | |
1253 | actual_type, actual_format); | |
1254 | ||
1255 | xfree ((char *) data); | |
1256 | return val; | |
1257 | } | |
1258 | \f | |
1259 | /* These functions convert from the selection data read from the server into | |
1260 | something that we can use from Lisp, and vice versa. | |
1261 | ||
1262 | Type: Format: Size: Lisp Type: | |
1263 | ----- ------- ----- ----------- | |
1264 | * 8 * String | |
1265 | ATOM 32 1 Symbol | |
1266 | ATOM 32 > 1 Vector of Symbols | |
1267 | * 16 1 Integer | |
1268 | * 16 > 1 Vector of Integers | |
1269 | * 32 1 if <=16 bits: Integer | |
1270 | if > 16 bits: Cons of top16, bot16 | |
1271 | * 32 > 1 Vector of the above | |
1272 | ||
1273 | When converting a Lisp number to C, it is assumed to be of format 16 if | |
1274 | it is an integer, and of format 32 if it is a cons of two integers. | |
1275 | ||
1276 | When converting a vector of numbers from Lisp to C, it is assumed to be | |
1277 | of format 16 if every element in the vector is an integer, and is assumed | |
1278 | to be of format 32 if any element is a cons of two integers. | |
1279 | ||
1280 | When converting an object to C, it may be of the form (SYMBOL . <data>) | |
1281 | where SYMBOL is what we should claim that the type is. Format and | |
1282 | representation are as above. */ | |
1283 | ||
1284 | ||
1285 | ||
1286 | static Lisp_Object | |
1287 | selection_data_to_lisp_data (display, data, size, type, format) | |
1288 | Display *display; | |
1289 | unsigned char *data; | |
1290 | Atom type; | |
1291 | int size, format; | |
1292 | { | |
1293 | ||
1294 | if (type == Xatom_NULL) | |
1295 | return QNULL; | |
1296 | ||
1297 | /* Convert any 8-bit data to a string, for compactness. */ | |
1298 | else if (format == 8) | |
1299 | return make_string ((char *) data, size); | |
1300 | ||
1301 | /* Convert a single atom to a Lisp_Symbol. Convert a set of atoms to | |
1302 | a vector of symbols. | |
1303 | */ | |
1304 | else if (type == XA_ATOM) | |
1305 | { | |
1306 | int i; | |
1307 | if (size == sizeof (Atom)) | |
1308 | return x_atom_to_symbol (display, *((Atom *) data)); | |
1309 | else | |
1310 | { | |
1311 | Lisp_Object v = Fmake_vector (size / sizeof (Atom), 0); | |
1312 | for (i = 0; i < size / sizeof (Atom); i++) | |
1313 | Faset (v, i, x_atom_to_symbol (display, ((Atom *) data) [i])); | |
1314 | return v; | |
1315 | } | |
1316 | } | |
1317 | ||
1318 | /* Convert a single 16 or small 32 bit number to a Lisp_Int. | |
1319 | If the number is > 16 bits, convert it to a cons of integers, | |
1320 | 16 bits in each half. | |
1321 | */ | |
1322 | else if (format == 32 && size == sizeof (long)) | |
1323 | return long_to_cons (((unsigned long *) data) [0]); | |
1324 | else if (format == 16 && size == sizeof (short)) | |
1325 | return make_number ((int) (((unsigned short *) data) [0])); | |
1326 | ||
1327 | /* Convert any other kind of data to a vector of numbers, represented | |
1328 | as above (as an integer, or a cons of two 16 bit integers.) | |
1329 | */ | |
1330 | else if (format == 16) | |
1331 | { | |
1332 | int i; | |
1333 | Lisp_Object v = Fmake_vector (size / 4, 0); | |
1334 | for (i = 0; i < size / 4; i++) | |
1335 | { | |
1336 | int j = (int) ((unsigned short *) data) [i]; | |
1337 | Faset (v, i, make_number (j)); | |
1338 | } | |
1339 | return v; | |
1340 | } | |
1341 | else | |
1342 | { | |
1343 | int i; | |
1344 | Lisp_Object v = Fmake_vector (size / 4, 0); | |
1345 | for (i = 0; i < size / 4; i++) | |
1346 | { | |
1347 | unsigned long j = ((unsigned long *) data) [i]; | |
1348 | Faset (v, i, long_to_cons (j)); | |
1349 | } | |
1350 | return v; | |
1351 | } | |
1352 | } | |
1353 | ||
1354 | ||
1355 | static void | |
1356 | lisp_data_to_selection_data (display, obj, | |
aca39f42 RS |
1357 | data_ret, type_ret, size_ret, |
1358 | format_ret, nofree_ret) | |
ede4db72 RS |
1359 | Display *display; |
1360 | Lisp_Object obj; | |
1361 | unsigned char **data_ret; | |
1362 | Atom *type_ret; | |
1363 | unsigned int *size_ret; | |
1364 | int *format_ret; | |
aca39f42 | 1365 | int *nofree_ret; |
ede4db72 RS |
1366 | { |
1367 | Lisp_Object type = Qnil; | |
aca39f42 RS |
1368 | |
1369 | *nofree_ret = 0; | |
1370 | ||
ede4db72 RS |
1371 | if (CONSP (obj) && SYMBOLP (XCONS (obj)->car)) |
1372 | { | |
1373 | type = XCONS (obj)->car; | |
1374 | obj = XCONS (obj)->cdr; | |
1375 | if (CONSP (obj) && NILP (XCONS (obj)->cdr)) | |
1376 | obj = XCONS (obj)->car; | |
1377 | } | |
1378 | ||
1379 | if (EQ (obj, QNULL) || (EQ (type, QNULL))) | |
1380 | { /* This is not the same as declining */ | |
1381 | *format_ret = 32; | |
1382 | *size_ret = 0; | |
1383 | *data_ret = 0; | |
1384 | type = QNULL; | |
1385 | } | |
1386 | else if (STRINGP (obj)) | |
1387 | { | |
1388 | *format_ret = 8; | |
1389 | *size_ret = XSTRING (obj)->size; | |
aca39f42 RS |
1390 | *data_ret = XSTRING (obj)->data; |
1391 | *nofree_ret = 1; | |
ede4db72 RS |
1392 | if (NILP (type)) type = QSTRING; |
1393 | } | |
1394 | else if (SYMBOLP (obj)) | |
1395 | { | |
1396 | *format_ret = 32; | |
1397 | *size_ret = 1; | |
1398 | *data_ret = (unsigned char *) xmalloc (sizeof (Atom) + 1); | |
1399 | (*data_ret) [sizeof (Atom)] = 0; | |
1400 | (*(Atom **) data_ret) [0] = symbol_to_x_atom (display, obj); | |
1401 | if (NILP (type)) type = QATOM; | |
1402 | } | |
7da64e5c | 1403 | else if (INTEGERP (obj) |
ede4db72 RS |
1404 | && XINT (obj) < 0xFFFF |
1405 | && XINT (obj) > -0xFFFF) | |
1406 | { | |
1407 | *format_ret = 16; | |
1408 | *size_ret = 1; | |
1409 | *data_ret = (unsigned char *) xmalloc (sizeof (short) + 1); | |
1410 | (*data_ret) [sizeof (short)] = 0; | |
1411 | (*(short **) data_ret) [0] = (short) XINT (obj); | |
1412 | if (NILP (type)) type = QINTEGER; | |
1413 | } | |
a87ed99c RS |
1414 | else if (INTEGERP (obj) |
1415 | || (CONSP (obj) && INTEGERP (XCONS (obj)->car) | |
1416 | && (INTEGERP (XCONS (obj)->cdr) | |
1417 | || (CONSP (XCONS (obj)->cdr) | |
1418 | && INTEGERP (XCONS (XCONS (obj)->cdr)->car))))) | |
ede4db72 RS |
1419 | { |
1420 | *format_ret = 32; | |
1421 | *size_ret = 1; | |
1422 | *data_ret = (unsigned char *) xmalloc (sizeof (long) + 1); | |
1423 | (*data_ret) [sizeof (long)] = 0; | |
1424 | (*(unsigned long **) data_ret) [0] = cons_to_long (obj); | |
1425 | if (NILP (type)) type = QINTEGER; | |
1426 | } | |
1427 | else if (VECTORP (obj)) | |
1428 | { | |
1429 | /* Lisp_Vectors may represent a set of ATOMs; | |
1430 | a set of 16 or 32 bit INTEGERs; | |
1431 | or a set of ATOM_PAIRs (represented as [[A1 A2] [A3 A4] ...] | |
1432 | */ | |
1433 | int i; | |
1434 | ||
1435 | if (SYMBOLP (XVECTOR (obj)->contents [0])) | |
1436 | /* This vector is an ATOM set */ | |
1437 | { | |
1438 | if (NILP (type)) type = QATOM; | |
1439 | *size_ret = XVECTOR (obj)->size; | |
1440 | *format_ret = 32; | |
1441 | *data_ret = (unsigned char *) xmalloc ((*size_ret) * sizeof (Atom)); | |
1442 | for (i = 0; i < *size_ret; i++) | |
1443 | if (SYMBOLP (XVECTOR (obj)->contents [i])) | |
1444 | (*(Atom **) data_ret) [i] | |
1445 | = symbol_to_x_atom (display, XVECTOR (obj)->contents [i]); | |
1446 | else | |
1447 | Fsignal (Qerror, /* Qselection_error */ | |
1448 | Fcons (build_string | |
1449 | ("all elements of selection vector must have same type"), | |
1450 | Fcons (obj, Qnil))); | |
1451 | } | |
1452 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1453 | else if (VECTORP (XVECTOR (obj)->contents [0])) | |
1454 | /* This vector is an ATOM_PAIR set */ | |
1455 | { | |
1456 | if (NILP (type)) type = QATOM_PAIR; | |
1457 | *size_ret = XVECTOR (obj)->size; | |
1458 | *format_ret = 32; | |
1459 | *data_ret = (unsigned char *) | |
1460 | xmalloc ((*size_ret) * sizeof (Atom) * 2); | |
1461 | for (i = 0; i < *size_ret; i++) | |
1462 | if (VECTORP (XVECTOR (obj)->contents [i])) | |
1463 | { | |
1464 | Lisp_Object pair = XVECTOR (obj)->contents [i]; | |
1465 | if (XVECTOR (pair)->size != 2) | |
1466 | Fsignal (Qerror, | |
1467 | Fcons (build_string | |
1468 | ("elements of the vector must be vectors of exactly two elements"), | |
1469 | Fcons (pair, Qnil))); | |
1470 | ||
1471 | (*(Atom **) data_ret) [i * 2] | |
1472 | = symbol_to_x_atom (display, XVECTOR (pair)->contents [0]); | |
1473 | (*(Atom **) data_ret) [(i * 2) + 1] | |
1474 | = symbol_to_x_atom (display, XVECTOR (pair)->contents [1]); | |
1475 | } | |
1476 | else | |
1477 | Fsignal (Qerror, | |
1478 | Fcons (build_string | |
1479 | ("all elements of the vector must be of the same type"), | |
1480 | Fcons (obj, Qnil))); | |
1481 | ||
1482 | } | |
1483 | #endif | |
1484 | else | |
1485 | /* This vector is an INTEGER set, or something like it */ | |
1486 | { | |
1487 | *size_ret = XVECTOR (obj)->size; | |
1488 | if (NILP (type)) type = QINTEGER; | |
1489 | *format_ret = 16; | |
1490 | for (i = 0; i < *size_ret; i++) | |
1491 | if (CONSP (XVECTOR (obj)->contents [i])) | |
1492 | *format_ret = 32; | |
7da64e5c | 1493 | else if (!INTEGERP (XVECTOR (obj)->contents [i])) |
ede4db72 RS |
1494 | Fsignal (Qerror, /* Qselection_error */ |
1495 | Fcons (build_string | |
1496 | ("elements of selection vector must be integers or conses of integers"), | |
1497 | Fcons (obj, Qnil))); | |
1498 | ||
1499 | *data_ret = (unsigned char *) xmalloc (*size_ret * (*format_ret/8)); | |
1500 | for (i = 0; i < *size_ret; i++) | |
1501 | if (*format_ret == 32) | |
1502 | (*((unsigned long **) data_ret)) [i] | |
1503 | = cons_to_long (XVECTOR (obj)->contents [i]); | |
1504 | else | |
1505 | (*((unsigned short **) data_ret)) [i] | |
1506 | = (unsigned short) cons_to_long (XVECTOR (obj)->contents [i]); | |
1507 | } | |
1508 | } | |
1509 | else | |
1510 | Fsignal (Qerror, /* Qselection_error */ | |
1511 | Fcons (build_string ("unrecognised selection data"), | |
1512 | Fcons (obj, Qnil))); | |
1513 | ||
1514 | *type_ret = symbol_to_x_atom (display, type); | |
1515 | } | |
1516 | ||
1517 | static Lisp_Object | |
1518 | clean_local_selection_data (obj) | |
1519 | Lisp_Object obj; | |
1520 | { | |
1521 | if (CONSP (obj) | |
7da64e5c | 1522 | && INTEGERP (XCONS (obj)->car) |
ede4db72 | 1523 | && CONSP (XCONS (obj)->cdr) |
7da64e5c | 1524 | && INTEGERP (XCONS (XCONS (obj)->cdr)->car) |
ede4db72 RS |
1525 | && NILP (XCONS (XCONS (obj)->cdr)->cdr)) |
1526 | obj = Fcons (XCONS (obj)->car, XCONS (obj)->cdr); | |
1527 | ||
1528 | if (CONSP (obj) | |
7da64e5c RS |
1529 | && INTEGERP (XCONS (obj)->car) |
1530 | && INTEGERP (XCONS (obj)->cdr)) | |
ede4db72 RS |
1531 | { |
1532 | if (XINT (XCONS (obj)->car) == 0) | |
1533 | return XCONS (obj)->cdr; | |
1534 | if (XINT (XCONS (obj)->car) == -1) | |
1535 | return make_number (- XINT (XCONS (obj)->cdr)); | |
1536 | } | |
1537 | if (VECTORP (obj)) | |
1538 | { | |
1539 | int i; | |
1540 | int size = XVECTOR (obj)->size; | |
1541 | Lisp_Object copy; | |
1542 | if (size == 1) | |
1543 | return clean_local_selection_data (XVECTOR (obj)->contents [0]); | |
1544 | copy = Fmake_vector (size, Qnil); | |
1545 | for (i = 0; i < size; i++) | |
1546 | XVECTOR (copy)->contents [i] | |
1547 | = clean_local_selection_data (XVECTOR (obj)->contents [i]); | |
1548 | return copy; | |
1549 | } | |
1550 | return obj; | |
1551 | } | |
1552 | \f | |
1553 | /* Called from XTread_socket to handle SelectionNotify events. | |
1554 | If it's the selection we are waiting for, stop waiting. */ | |
1555 | ||
1556 | void | |
1557 | x_handle_selection_notify (event) | |
1558 | XSelectionEvent *event; | |
1559 | { | |
1560 | if (event->requestor != reading_selection_window) | |
1561 | return; | |
1562 | if (event->selection != reading_which_selection) | |
1563 | return; | |
1564 | ||
1565 | XCONS (reading_selection_reply)->car = Qt; | |
1566 | } | |
1567 | ||
1568 | \f | |
1569 | DEFUN ("x-own-selection-internal", | |
1570 | Fx_own_selection_internal, Sx_own_selection_internal, | |
1571 | 2, 2, 0, | |
1572 | "Assert an X selection of the given TYPE with the given VALUE.\n\ | |
1573 | TYPE is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'.\n\ | |
1574 | \(Those are literal upper-case symbol names, since that's what X expects.)\n\ | |
1575 | VALUE is typically a string, or a cons of two markers, but may be\n\ | |
a87ed99c | 1576 | anything that the functions on `selection-converter-alist' know about.") |
ede4db72 RS |
1577 | (selection_name, selection_value) |
1578 | Lisp_Object selection_name, selection_value; | |
1579 | { | |
703e0710 | 1580 | check_x (); |
ede4db72 RS |
1581 | CHECK_SYMBOL (selection_name, 0); |
1582 | if (NILP (selection_value)) error ("selection-value may not be nil."); | |
1583 | x_own_selection (selection_name, selection_value); | |
1584 | return selection_value; | |
1585 | } | |
1586 | ||
1587 | ||
1588 | /* Request the selection value from the owner. If we are the owner, | |
1589 | simply return our selection value. If we are not the owner, this | |
1590 | will block until all of the data has arrived. */ | |
1591 | ||
1592 | DEFUN ("x-get-selection-internal", | |
1593 | Fx_get_selection_internal, Sx_get_selection_internal, 2, 2, 0, | |
1594 | "Return text selected from some X window.\n\ | |
1595 | SELECTION is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'.\n\ | |
1596 | \(Those are literal upper-case symbol names, since that's what X expects.)\n\ | |
a87ed99c | 1597 | TYPE is the type of data desired, typically `STRING'.") |
ede4db72 RS |
1598 | (selection_symbol, target_type) |
1599 | Lisp_Object selection_symbol, target_type; | |
1600 | { | |
1601 | Lisp_Object val = Qnil; | |
1602 | struct gcpro gcpro1, gcpro2; | |
1603 | GCPRO2 (target_type, val); /* we store newly consed data into these */ | |
703e0710 | 1604 | check_x (); |
ede4db72 RS |
1605 | CHECK_SYMBOL (selection_symbol, 0); |
1606 | ||
1607 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1608 | if (CONSP (target_type) | |
1609 | && XCONS (target_type)->car == QMULTIPLE) | |
1610 | { | |
1611 | CHECK_VECTOR (XCONS (target_type)->cdr, 0); | |
1612 | /* So we don't destructively modify this... */ | |
1613 | target_type = copy_multiple_data (target_type); | |
1614 | } | |
1615 | else | |
1616 | #endif | |
1617 | CHECK_SYMBOL (target_type, 0); | |
1618 | ||
1619 | val = x_get_local_selection (selection_symbol, target_type); | |
1620 | ||
1621 | if (NILP (val)) | |
1622 | { | |
1623 | val = x_get_foreign_selection (selection_symbol, target_type); | |
1624 | goto DONE; | |
1625 | } | |
1626 | ||
1627 | if (CONSP (val) | |
1628 | && SYMBOLP (XCONS (val)->car)) | |
1629 | { | |
1630 | val = XCONS (val)->cdr; | |
1631 | if (CONSP (val) && NILP (XCONS (val)->cdr)) | |
1632 | val = XCONS (val)->car; | |
1633 | } | |
1634 | val = clean_local_selection_data (val); | |
1635 | DONE: | |
1636 | UNGCPRO; | |
1637 | return val; | |
1638 | } | |
1639 | ||
1640 | DEFUN ("x-disown-selection-internal", | |
1641 | Fx_disown_selection_internal, Sx_disown_selection_internal, 1, 2, 0, | |
a87ed99c RS |
1642 | "If we own the selection SELECTION, disown it.\n\ |
1643 | Disowning it means there is no such selection.") | |
ede4db72 RS |
1644 | (selection, time) |
1645 | Lisp_Object selection; | |
1646 | Lisp_Object time; | |
1647 | { | |
1648 | Display *display = x_current_display; | |
1649 | Time timestamp; | |
1650 | Atom selection_atom; | |
1651 | XSelectionClearEvent event; | |
1652 | ||
703e0710 | 1653 | check_x (); |
ede4db72 RS |
1654 | CHECK_SYMBOL (selection, 0); |
1655 | if (NILP (time)) | |
7da64e5c | 1656 | timestamp = last_event_timestamp; |
ede4db72 RS |
1657 | else |
1658 | timestamp = cons_to_long (time); | |
1659 | ||
1660 | if (NILP (assq_no_quit (selection, Vselection_alist))) | |
1661 | return Qnil; /* Don't disown the selection when we're not the owner. */ | |
1662 | ||
1663 | selection_atom = symbol_to_x_atom (display, selection); | |
1664 | ||
1665 | BLOCK_INPUT; | |
1666 | XSetSelectionOwner (display, selection_atom, None, timestamp); | |
1667 | UNBLOCK_INPUT; | |
1668 | ||
eb8c3be9 | 1669 | /* It doesn't seem to be guaranteed that a SelectionClear event will be |
ede4db72 RS |
1670 | generated for a window which owns the selection when that window sets |
1671 | the selection owner to None. The NCD server does, the MIT Sun4 server | |
1672 | doesn't. So we synthesize one; this means we might get two, but | |
1673 | that's ok, because the second one won't have any effect. */ | |
8d47f8c4 RS |
1674 | SELECTION_EVENT_DISPLAY (&event) = display; |
1675 | SELECTION_EVENT_SELECTION (&event) = selection_atom; | |
1676 | SELECTION_EVENT_TIME (&event) = timestamp; | |
ede4db72 RS |
1677 | x_handle_selection_clear (&event); |
1678 | ||
1679 | return Qt; | |
1680 | } | |
1681 | ||
a87ed99c RS |
1682 | /* Get rid of all the selections in buffer BUFFER. |
1683 | This is used when we kill a buffer. */ | |
1684 | ||
1685 | void | |
1686 | x_disown_buffer_selections (buffer) | |
1687 | Lisp_Object buffer; | |
1688 | { | |
1689 | Lisp_Object tail; | |
1690 | struct buffer *buf = XBUFFER (buffer); | |
1691 | ||
1692 | for (tail = Vselection_alist; CONSP (tail); tail = XCONS (tail)->cdr) | |
1693 | { | |
1694 | Lisp_Object elt, value; | |
1695 | elt = XCONS (tail)->car; | |
1696 | value = XCONS (elt)->cdr; | |
1697 | if (CONSP (value) && MARKERP (XCONS (value)->car) | |
1698 | && XMARKER (XCONS (value)->car)->buffer == buf) | |
1699 | Fx_disown_selection_internal (XCONS (elt)->car, Qnil); | |
1700 | } | |
1701 | } | |
ede4db72 RS |
1702 | |
1703 | DEFUN ("x-selection-owner-p", Fx_selection_owner_p, Sx_selection_owner_p, | |
1704 | 0, 1, 0, | |
a87ed99c | 1705 | "Whether the current Emacs process owns the given X Selection.\n\ |
ede4db72 RS |
1706 | The arg should be the name of the selection in question, typically one of\n\ |
1707 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'.\n\ | |
1708 | \(Those are literal upper-case symbol names, since that's what X expects.)\n\ | |
1709 | For convenience, the symbol nil is the same as `PRIMARY',\n\ | |
1710 | and t is the same as `SECONDARY'.)") | |
1711 | (selection) | |
1712 | Lisp_Object selection; | |
1713 | { | |
703e0710 | 1714 | check_x (); |
ede4db72 RS |
1715 | CHECK_SYMBOL (selection, 0); |
1716 | if (EQ (selection, Qnil)) selection = QPRIMARY; | |
1717 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
1718 | ||
1719 | if (NILP (Fassq (selection, Vselection_alist))) | |
1720 | return Qnil; | |
1721 | return Qt; | |
1722 | } | |
1723 | ||
1724 | DEFUN ("x-selection-exists-p", Fx_selection_exists_p, Sx_selection_exists_p, | |
1725 | 0, 1, 0, | |
1726 | "Whether there is an owner for the given X Selection.\n\ | |
1727 | The arg should be the name of the selection in question, typically one of\n\ | |
1728 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'.\n\ | |
1729 | \(Those are literal upper-case symbol names, since that's what X expects.)\n\ | |
1730 | For convenience, the symbol nil is the same as `PRIMARY',\n\ | |
1731 | and t is the same as `SECONDARY'.)") | |
1732 | (selection) | |
1733 | Lisp_Object selection; | |
1734 | { | |
1735 | Window owner; | |
356ba514 | 1736 | Atom atom; |
ede4db72 | 1737 | Display *dpy = x_current_display; |
703e0710 | 1738 | check_x (); |
ede4db72 RS |
1739 | CHECK_SYMBOL (selection, 0); |
1740 | if (!NILP (Fx_selection_owner_p (selection))) | |
1741 | return Qt; | |
356ba514 RS |
1742 | if (EQ (selection, Qnil)) selection = QPRIMARY; |
1743 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
1744 | atom = symbol_to_x_atom (dpy, selection); | |
1745 | if (atom == 0) | |
1746 | return Qnil; | |
ede4db72 | 1747 | BLOCK_INPUT; |
356ba514 | 1748 | owner = XGetSelectionOwner (dpy, atom); |
ede4db72 RS |
1749 | UNBLOCK_INPUT; |
1750 | return (owner ? Qt : Qnil); | |
1751 | } | |
1752 | ||
1753 | \f | |
1754 | #ifdef CUT_BUFFER_SUPPORT | |
1755 | ||
1756 | static int cut_buffers_initialized; /* Whether we're sure they all exist */ | |
1757 | ||
1758 | /* Ensure that all 8 cut buffers exist. ICCCM says we gotta... */ | |
1759 | static void | |
1760 | initialize_cut_buffers (display, window) | |
1761 | Display *display; | |
1762 | Window window; | |
1763 | { | |
1764 | unsigned char *data = (unsigned char *) ""; | |
1765 | BLOCK_INPUT; | |
1766 | #define FROB(atom) XChangeProperty (display, window, atom, XA_STRING, 8, \ | |
1767 | PropModeAppend, data, 0) | |
1768 | FROB (XA_CUT_BUFFER0); | |
1769 | FROB (XA_CUT_BUFFER1); | |
1770 | FROB (XA_CUT_BUFFER2); | |
1771 | FROB (XA_CUT_BUFFER3); | |
1772 | FROB (XA_CUT_BUFFER4); | |
1773 | FROB (XA_CUT_BUFFER5); | |
1774 | FROB (XA_CUT_BUFFER6); | |
1775 | FROB (XA_CUT_BUFFER7); | |
1776 | #undef FROB | |
1777 | UNBLOCK_INPUT; | |
1778 | cut_buffers_initialized = 1; | |
1779 | } | |
1780 | ||
1781 | ||
a87ed99c | 1782 | #define CHECK_CUT_BUFFER(symbol,n) \ |
ede4db72 RS |
1783 | { CHECK_SYMBOL ((symbol), (n)); \ |
1784 | if (!EQ((symbol), QCUT_BUFFER0) && !EQ((symbol), QCUT_BUFFER1) \ | |
1785 | && !EQ((symbol), QCUT_BUFFER2) && !EQ((symbol), QCUT_BUFFER3) \ | |
1786 | && !EQ((symbol), QCUT_BUFFER4) && !EQ((symbol), QCUT_BUFFER5) \ | |
1787 | && !EQ((symbol), QCUT_BUFFER6) && !EQ((symbol), QCUT_BUFFER7)) \ | |
1788 | Fsignal (Qerror, \ | |
a87ed99c | 1789 | Fcons (build_string ("doesn't name a cut buffer"), \ |
ede4db72 RS |
1790 | Fcons ((symbol), Qnil))); \ |
1791 | } | |
1792 | ||
a87ed99c RS |
1793 | DEFUN ("x-get-cut-buffer-internal", Fx_get_cut_buffer_internal, |
1794 | Sx_get_cut_buffer_internal, 1, 1, 0, | |
1795 | "Returns the value of the named cut buffer (typically CUT_BUFFER0).") | |
ede4db72 RS |
1796 | (buffer) |
1797 | Lisp_Object buffer; | |
1798 | { | |
1799 | Display *display = x_current_display; | |
a87ed99c | 1800 | Window window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
ede4db72 RS |
1801 | Atom buffer_atom; |
1802 | unsigned char *data; | |
1803 | int bytes; | |
1804 | Atom type; | |
1805 | int format; | |
1806 | unsigned long size; | |
1807 | Lisp_Object ret; | |
1808 | ||
703e0710 | 1809 | check_x (); |
a87ed99c | 1810 | CHECK_CUT_BUFFER (buffer, 0); |
ede4db72 RS |
1811 | buffer_atom = symbol_to_x_atom (display, buffer); |
1812 | ||
1813 | x_get_window_property (display, window, buffer_atom, &data, &bytes, | |
1814 | &type, &format, &size, 0); | |
1815 | if (!data) return Qnil; | |
1816 | ||
1817 | if (format != 8 || type != XA_STRING) | |
1818 | Fsignal (Qerror, | |
1819 | Fcons (build_string ("cut buffer doesn't contain 8-bit data"), | |
1820 | Fcons (x_atom_to_symbol (display, type), | |
1821 | Fcons (make_number (format), Qnil)))); | |
1822 | ||
1823 | ret = (bytes ? make_string ((char *) data, bytes) : Qnil); | |
1824 | xfree (data); | |
1825 | return ret; | |
1826 | } | |
1827 | ||
1828 | ||
a87ed99c RS |
1829 | DEFUN ("x-store-cut-buffer-internal", Fx_store_cut_buffer_internal, |
1830 | Sx_store_cut_buffer_internal, 2, 2, 0, | |
1831 | "Sets the value of the named cut buffer (typically CUT_BUFFER0).") | |
ede4db72 RS |
1832 | (buffer, string) |
1833 | Lisp_Object buffer, string; | |
1834 | { | |
1835 | Display *display = x_current_display; | |
a87ed99c | 1836 | Window window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
ede4db72 RS |
1837 | Atom buffer_atom; |
1838 | unsigned char *data; | |
1839 | int bytes; | |
1840 | int bytes_remaining; | |
1841 | int max_bytes = SELECTION_QUANTUM (display); | |
1842 | if (max_bytes > MAX_SELECTION_QUANTUM) max_bytes = MAX_SELECTION_QUANTUM; | |
1843 | ||
703e0710 | 1844 | check_x (); |
a87ed99c | 1845 | CHECK_CUT_BUFFER (buffer, 0); |
ede4db72 RS |
1846 | CHECK_STRING (string, 0); |
1847 | buffer_atom = symbol_to_x_atom (display, buffer); | |
1848 | data = (unsigned char *) XSTRING (string)->data; | |
1849 | bytes = XSTRING (string)->size; | |
1850 | bytes_remaining = bytes; | |
1851 | ||
1852 | if (! cut_buffers_initialized) initialize_cut_buffers (display, window); | |
1853 | ||
1854 | BLOCK_INPUT; | |
10608c8c RS |
1855 | |
1856 | /* Don't mess up with an empty value. */ | |
1857 | if (!bytes_remaining) | |
1858 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
1859 | PropModeReplace, data, 0); | |
1860 | ||
ede4db72 RS |
1861 | while (bytes_remaining) |
1862 | { | |
1863 | int chunk = (bytes_remaining < max_bytes | |
1864 | ? bytes_remaining : max_bytes); | |
1865 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
1866 | (bytes_remaining == bytes | |
1867 | ? PropModeReplace | |
1868 | : PropModeAppend), | |
1869 | data, chunk); | |
1870 | data += chunk; | |
1871 | bytes_remaining -= chunk; | |
1872 | } | |
1873 | UNBLOCK_INPUT; | |
1874 | return string; | |
1875 | } | |
1876 | ||
1877 | ||
a87ed99c RS |
1878 | DEFUN ("x-rotate-cut-buffers-internal", Fx_rotate_cut_buffers_internal, |
1879 | Sx_rotate_cut_buffers_internal, 1, 1, 0, | |
1880 | "Rotate the values of the cut buffers by the given number of steps;\n\ | |
ede4db72 RS |
1881 | positive means move values forward, negative means backward.") |
1882 | (n) | |
1883 | Lisp_Object n; | |
1884 | { | |
1885 | Display *display = x_current_display; | |
a87ed99c | 1886 | Window window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
ede4db72 RS |
1887 | Atom props [8]; |
1888 | ||
703e0710 | 1889 | check_x (); |
7da64e5c | 1890 | CHECK_NUMBER (n, 0); |
ede4db72 RS |
1891 | if (XINT (n) == 0) return n; |
1892 | if (! cut_buffers_initialized) initialize_cut_buffers (display, window); | |
1893 | props[0] = XA_CUT_BUFFER0; | |
1894 | props[1] = XA_CUT_BUFFER1; | |
1895 | props[2] = XA_CUT_BUFFER2; | |
1896 | props[3] = XA_CUT_BUFFER3; | |
1897 | props[4] = XA_CUT_BUFFER4; | |
1898 | props[5] = XA_CUT_BUFFER5; | |
1899 | props[6] = XA_CUT_BUFFER6; | |
1900 | props[7] = XA_CUT_BUFFER7; | |
1901 | BLOCK_INPUT; | |
1902 | XRotateWindowProperties (display, window, props, 8, XINT (n)); | |
1903 | UNBLOCK_INPUT; | |
1904 | return n; | |
1905 | } | |
1906 | ||
1907 | #endif | |
1908 | \f | |
7da64e5c RS |
1909 | void |
1910 | Xatoms_of_xselect () | |
ede4db72 RS |
1911 | { |
1912 | #define ATOM(x) XInternAtom (x_current_display, (x), False) | |
1913 | ||
1914 | BLOCK_INPUT; | |
1915 | /* Non-predefined atoms that we might end up using a lot */ | |
1916 | Xatom_CLIPBOARD = ATOM ("CLIPBOARD"); | |
1917 | Xatom_TIMESTAMP = ATOM ("TIMESTAMP"); | |
1918 | Xatom_TEXT = ATOM ("TEXT"); | |
1919 | Xatom_DELETE = ATOM ("DELETE"); | |
1920 | Xatom_MULTIPLE = ATOM ("MULTIPLE"); | |
1921 | Xatom_INCR = ATOM ("INCR"); | |
1922 | Xatom_EMACS_TMP = ATOM ("_EMACS_TMP_"); | |
1923 | Xatom_TARGETS = ATOM ("TARGETS"); | |
1924 | Xatom_NULL = ATOM ("NULL"); | |
1925 | Xatom_ATOM_PAIR = ATOM ("ATOM_PAIR"); | |
1926 | UNBLOCK_INPUT; | |
1927 | } | |
1928 | ||
1929 | void | |
1930 | syms_of_xselect () | |
1931 | { | |
ede4db72 RS |
1932 | defsubr (&Sx_get_selection_internal); |
1933 | defsubr (&Sx_own_selection_internal); | |
1934 | defsubr (&Sx_disown_selection_internal); | |
1935 | defsubr (&Sx_selection_owner_p); | |
1936 | defsubr (&Sx_selection_exists_p); | |
1937 | ||
1938 | #ifdef CUT_BUFFER_SUPPORT | |
a87ed99c RS |
1939 | defsubr (&Sx_get_cut_buffer_internal); |
1940 | defsubr (&Sx_store_cut_buffer_internal); | |
1941 | defsubr (&Sx_rotate_cut_buffers_internal); | |
ede4db72 RS |
1942 | cut_buffers_initialized = 0; |
1943 | #endif | |
1944 | ||
1945 | reading_selection_reply = Fcons (Qnil, Qnil); | |
1946 | staticpro (&reading_selection_reply); | |
1947 | reading_selection_window = 0; | |
1948 | reading_which_selection = 0; | |
1949 | ||
1950 | property_change_wait_list = 0; | |
2f65feb6 | 1951 | prop_location_identifier = 0; |
ede4db72 RS |
1952 | property_change_reply = Fcons (Qnil, Qnil); |
1953 | staticpro (&property_change_reply); | |
1954 | ||
1955 | Vselection_alist = Qnil; | |
1956 | staticpro (&Vselection_alist); | |
1957 | ||
1958 | DEFVAR_LISP ("selection-converter-alist", &Vselection_converter_alist, | |
1959 | "An alist associating X Windows selection-types with functions.\n\ | |
1960 | These functions are called to convert the selection, with three args:\n\ | |
1961 | the name of the selection (typically `PRIMARY', `SECONDARY', or `CLIPBOARD');\n\ | |
1962 | a desired type to which the selection should be converted;\n\ | |
1963 | and the local selection value (whatever was given to `x-own-selection').\n\ | |
1964 | \n\ | |
1965 | The function should return the value to send to the X server\n\ | |
1966 | \(typically a string). A return value of nil\n\ | |
1967 | means that the conversion could not be done.\n\ | |
1968 | A return value which is the symbol `NULL'\n\ | |
1969 | means that a side-effect was executed,\n\ | |
1970 | and there is no meaningful selection value."); | |
1971 | Vselection_converter_alist = Qnil; | |
1972 | ||
1973 | DEFVAR_LISP ("x-lost-selection-hooks", &Vx_lost_selection_hooks, | |
1974 | "A list of functions to be called when Emacs loses an X selection.\n\ | |
1975 | \(This happens when some other X client makes its own selection\n\ | |
1976 | or when a Lisp program explicitly clears the selection.)\n\ | |
1977 | The functions are called with one argument, the selection type\n\ | |
1978 | \(a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'.)"); | |
1979 | Vx_lost_selection_hooks = Qnil; | |
1980 | ||
1981 | DEFVAR_LISP ("x-sent-selection-hooks", &Vx_sent_selection_hooks, | |
1982 | "A list of functions to be called when Emacs answers a selection request.\n\ | |
1983 | The functions are called with four arguments:\n\ | |
1984 | - the selection name (typically `PRIMARY', `SECONDARY', or `CLIPBOARD');\n\ | |
1985 | - the selection-type which Emacs was asked to convert the\n\ | |
1986 | selection into before sending (for example, `STRING' or `LENGTH');\n\ | |
1987 | - a flag indicating success or failure for responding to the request.\n\ | |
1988 | We might have failed (and declined the request) for any number of reasons,\n\ | |
1989 | including being asked for a selection that we no longer own, or being asked\n\ | |
1990 | to convert into a type that we don't know about or that is inappropriate.\n\ | |
1991 | This hook doesn't let you change the behavior of Emacs's selection replies,\n\ | |
1992 | it merely informs you that they have happened."); | |
1993 | Vx_sent_selection_hooks = Qnil; | |
1994 | ||
1995 | DEFVAR_INT ("x-selection-timeout", &x_selection_timeout, | |
80da0190 RS |
1996 | "Number of milliseconds to wait for a selection reply.\n\ |
1997 | If the selection owner doens't reply in this time, we give up.\n\ | |
ede4db72 | 1998 | A value of 0 means wait as long as necessary. This is initialized from the\n\ |
80da0190 | 1999 | \"*selectionTimeout\" resource."); |
ede4db72 RS |
2000 | x_selection_timeout = 0; |
2001 | ||
2002 | QPRIMARY = intern ("PRIMARY"); staticpro (&QPRIMARY); | |
2003 | QSECONDARY = intern ("SECONDARY"); staticpro (&QSECONDARY); | |
2004 | QSTRING = intern ("STRING"); staticpro (&QSTRING); | |
2005 | QINTEGER = intern ("INTEGER"); staticpro (&QINTEGER); | |
2006 | QCLIPBOARD = intern ("CLIPBOARD"); staticpro (&QCLIPBOARD); | |
2007 | QTIMESTAMP = intern ("TIMESTAMP"); staticpro (&QTIMESTAMP); | |
2008 | QTEXT = intern ("TEXT"); staticpro (&QTEXT); | |
2009 | QTIMESTAMP = intern ("TIMESTAMP"); staticpro (&QTIMESTAMP); | |
2010 | QDELETE = intern ("DELETE"); staticpro (&QDELETE); | |
2011 | QMULTIPLE = intern ("MULTIPLE"); staticpro (&QMULTIPLE); | |
2012 | QINCR = intern ("INCR"); staticpro (&QINCR); | |
2013 | QEMACS_TMP = intern ("_EMACS_TMP_"); staticpro (&QEMACS_TMP); | |
2014 | QTARGETS = intern ("TARGETS"); staticpro (&QTARGETS); | |
2015 | QATOM = intern ("ATOM"); staticpro (&QATOM); | |
2016 | QATOM_PAIR = intern ("ATOM_PAIR"); staticpro (&QATOM_PAIR); | |
2017 | QNULL = intern ("NULL"); staticpro (&QNULL); | |
2018 | ||
2019 | #ifdef CUT_BUFFER_SUPPORT | |
2020 | QCUT_BUFFER0 = intern ("CUT_BUFFER0"); staticpro (&QCUT_BUFFER0); | |
2021 | QCUT_BUFFER1 = intern ("CUT_BUFFER1"); staticpro (&QCUT_BUFFER1); | |
2022 | QCUT_BUFFER2 = intern ("CUT_BUFFER2"); staticpro (&QCUT_BUFFER2); | |
2023 | QCUT_BUFFER3 = intern ("CUT_BUFFER3"); staticpro (&QCUT_BUFFER3); | |
2024 | QCUT_BUFFER4 = intern ("CUT_BUFFER4"); staticpro (&QCUT_BUFFER4); | |
2025 | QCUT_BUFFER5 = intern ("CUT_BUFFER5"); staticpro (&QCUT_BUFFER5); | |
2026 | QCUT_BUFFER6 = intern ("CUT_BUFFER6"); staticpro (&QCUT_BUFFER6); | |
2027 | QCUT_BUFFER7 = intern ("CUT_BUFFER7"); staticpro (&QCUT_BUFFER7); | |
2028 | #endif | |
2029 | ||
2030 | } |