Commit | Line | Data |
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2408b3a1 | 1 | /* X Selection processing for Emacs. |
1c4d2069 | 2 | Copyright (C) 1993, 1994, 1995, 1996, 1997, 2000 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 | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
ede4db72 | 20 | |
c6c5df7f | 21 | |
ede4db72 RS |
22 | /* Rewritten by jwz */ |
23 | ||
18160b98 | 24 | #include <config.h> |
ede4db72 RS |
25 | #include "lisp.h" |
26 | #include "xterm.h" /* for all of the X includes */ | |
7da64e5c RS |
27 | #include "dispextern.h" /* frame.h seems to want this */ |
28 | #include "frame.h" /* Need this to get the X window of selected_frame */ | |
9ac0d9e0 | 29 | #include "blockinput.h" |
5faa9b45 | 30 | #include "buffer.h" |
e6c7c988 KH |
31 | #include "charset.h" |
32 | #include "coding.h" | |
dfcf069d | 33 | #include "process.h" |
0caef0ec | 34 | #include "composite.h" |
7da64e5c | 35 | |
ede4db72 RS |
36 | #define CUT_BUFFER_SUPPORT |
37 | ||
ede4db72 RS |
38 | Lisp_Object QPRIMARY, QSECONDARY, QSTRING, QINTEGER, QCLIPBOARD, QTIMESTAMP, |
39 | QTEXT, QDELETE, QMULTIPLE, QINCR, QEMACS_TMP, QTARGETS, QATOM, QNULL, | |
40 | QATOM_PAIR; | |
41 | ||
e6c7c988 KH |
42 | Lisp_Object QCOMPOUND_TEXT; /* This is a type of selection. */ |
43 | ||
ede4db72 RS |
44 | #ifdef CUT_BUFFER_SUPPORT |
45 | Lisp_Object QCUT_BUFFER0, QCUT_BUFFER1, QCUT_BUFFER2, QCUT_BUFFER3, | |
46 | QCUT_BUFFER4, QCUT_BUFFER5, QCUT_BUFFER6, QCUT_BUFFER7; | |
47 | #endif | |
48 | ||
8f4f023f RS |
49 | static Lisp_Object Vx_lost_selection_hooks; |
50 | static Lisp_Object Vx_sent_selection_hooks; | |
2584c9ec KH |
51 | /* Coding system for communicating with other X clients via cutbuffer, |
52 | selection, and clipboard. */ | |
93e4ce1b | 53 | static Lisp_Object Vselection_coding_system; |
ede4db72 | 54 | |
16cd5029 KH |
55 | /* Coding system for the next communicating with other X clients. */ |
56 | static Lisp_Object Vnext_selection_coding_system; | |
57 | ||
ede4db72 RS |
58 | /* If this is a smaller number than the max-request-size of the display, |
59 | emacs will use INCR selection transfer when the selection is larger | |
60 | than this. The max-request-size is usually around 64k, so if you want | |
61 | emacs to use incremental selection transfers when the selection is | |
62 | smaller than that, set this. I added this mostly for debugging the | |
8f4f023f | 63 | incremental transfer stuff, but it might improve server performance. */ |
ede4db72 RS |
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 | 72 | /* The timestamp of the last input event Emacs received from the X server. */ |
29674445 KH |
73 | /* Defined in keyboard.c. */ |
74 | extern unsigned long last_event_timestamp; | |
ede4db72 RS |
75 | |
76 | /* This is an association list whose elements are of the form | |
118bd841 RS |
77 | ( SELECTION-NAME SELECTION-VALUE SELECTION-TIMESTAMP FRAME) |
78 | SELECTION-NAME is a lisp symbol, whose name is the name of an X Atom. | |
79 | SELECTION-VALUE is the value that emacs owns for that selection. | |
ede4db72 | 80 | It may be any kind of Lisp object. |
118bd841 | 81 | SELECTION-TIMESTAMP is the time at which emacs began owning this selection, |
ede4db72 | 82 | as a cons of two 16-bit numbers (making a 32 bit time.) |
118bd841 RS |
83 | FRAME is the frame for which we made the selection. |
84 | If there is an entry in this alist, then it can be assumed that Emacs owns | |
ede4db72 RS |
85 | that selection. |
86 | The only (eq) parts of this list that are visible from Lisp are the | |
8f4f023f RS |
87 | selection-values. */ |
88 | static Lisp_Object Vselection_alist; | |
ede4db72 RS |
89 | |
90 | /* This is an alist whose CARs are selection-types (whose names are the same | |
91 | as the names of X Atoms) and whose CDRs are the names of Lisp functions to | |
92 | call to convert the given Emacs selection value to a string representing | |
93 | the given selection type. This is for Lisp-level extension of the emacs | |
8f4f023f RS |
94 | selection handling. */ |
95 | static Lisp_Object Vselection_converter_alist; | |
ede4db72 RS |
96 | |
97 | /* If the selection owner takes too long to reply to a selection request, | |
8f4f023f RS |
98 | we give up on it. This is in milliseconds (0 = no timeout.) */ |
99 | static int x_selection_timeout; | |
ede4db72 RS |
100 | \f |
101 | /* Utility functions */ | |
102 | ||
103 | static void lisp_data_to_selection_data (); | |
104 | static Lisp_Object selection_data_to_lisp_data (); | |
105 | static Lisp_Object x_get_window_property_as_lisp_data (); | |
106 | ||
ede4db72 RS |
107 | /* This converts a Lisp symbol to a server Atom, avoiding a server |
108 | roundtrip whenever possible. */ | |
109 | ||
110 | static Atom | |
5c3a351a RS |
111 | symbol_to_x_atom (dpyinfo, display, sym) |
112 | struct x_display_info *dpyinfo; | |
ede4db72 RS |
113 | Display *display; |
114 | Lisp_Object sym; | |
115 | { | |
116 | Atom val; | |
117 | if (NILP (sym)) return 0; | |
118 | if (EQ (sym, QPRIMARY)) return XA_PRIMARY; | |
119 | if (EQ (sym, QSECONDARY)) return XA_SECONDARY; | |
120 | if (EQ (sym, QSTRING)) return XA_STRING; | |
121 | if (EQ (sym, QINTEGER)) return XA_INTEGER; | |
122 | if (EQ (sym, QATOM)) return XA_ATOM; | |
5c3a351a RS |
123 | if (EQ (sym, QCLIPBOARD)) return dpyinfo->Xatom_CLIPBOARD; |
124 | if (EQ (sym, QTIMESTAMP)) return dpyinfo->Xatom_TIMESTAMP; | |
125 | if (EQ (sym, QTEXT)) return dpyinfo->Xatom_TEXT; | |
e6c7c988 | 126 | if (EQ (sym, QCOMPOUND_TEXT)) return dpyinfo->Xatom_COMPOUND_TEXT; |
5c3a351a RS |
127 | if (EQ (sym, QDELETE)) return dpyinfo->Xatom_DELETE; |
128 | if (EQ (sym, QMULTIPLE)) return dpyinfo->Xatom_MULTIPLE; | |
129 | if (EQ (sym, QINCR)) return dpyinfo->Xatom_INCR; | |
130 | if (EQ (sym, QEMACS_TMP)) return dpyinfo->Xatom_EMACS_TMP; | |
131 | if (EQ (sym, QTARGETS)) return dpyinfo->Xatom_TARGETS; | |
132 | if (EQ (sym, QNULL)) return dpyinfo->Xatom_NULL; | |
ede4db72 RS |
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 | |
5c3a351a RS |
159 | x_atom_to_symbol (dpyinfo, display, atom) |
160 | struct x_display_info *dpyinfo; | |
ede4db72 RS |
161 | Display *display; |
162 | Atom atom; | |
163 | { | |
164 | char *str; | |
165 | Lisp_Object val; | |
166 | if (! atom) return Qnil; | |
7da64e5c RS |
167 | switch (atom) |
168 | { | |
169 | case XA_PRIMARY: | |
170 | return QPRIMARY; | |
171 | case XA_SECONDARY: | |
172 | return QSECONDARY; | |
173 | case XA_STRING: | |
174 | return QSTRING; | |
175 | case XA_INTEGER: | |
176 | return QINTEGER; | |
177 | case XA_ATOM: | |
178 | return QATOM; | |
ede4db72 | 179 | #ifdef CUT_BUFFER_SUPPORT |
7da64e5c RS |
180 | case XA_CUT_BUFFER0: |
181 | return QCUT_BUFFER0; | |
182 | case XA_CUT_BUFFER1: | |
183 | return QCUT_BUFFER1; | |
184 | case XA_CUT_BUFFER2: | |
185 | return QCUT_BUFFER2; | |
186 | case XA_CUT_BUFFER3: | |
187 | return QCUT_BUFFER3; | |
188 | case XA_CUT_BUFFER4: | |
189 | return QCUT_BUFFER4; | |
190 | case XA_CUT_BUFFER5: | |
191 | return QCUT_BUFFER5; | |
192 | case XA_CUT_BUFFER6: | |
193 | return QCUT_BUFFER6; | |
194 | case XA_CUT_BUFFER7: | |
195 | return QCUT_BUFFER7; | |
ede4db72 | 196 | #endif |
7da64e5c RS |
197 | } |
198 | ||
5c3a351a | 199 | if (atom == dpyinfo->Xatom_CLIPBOARD) |
7da64e5c | 200 | return QCLIPBOARD; |
5c3a351a | 201 | if (atom == dpyinfo->Xatom_TIMESTAMP) |
7da64e5c | 202 | return QTIMESTAMP; |
5c3a351a | 203 | if (atom == dpyinfo->Xatom_TEXT) |
7da64e5c | 204 | return QTEXT; |
e6c7c988 KH |
205 | if (atom == dpyinfo->Xatom_COMPOUND_TEXT) |
206 | return QCOMPOUND_TEXT; | |
5c3a351a | 207 | if (atom == dpyinfo->Xatom_DELETE) |
7da64e5c | 208 | return QDELETE; |
5c3a351a | 209 | if (atom == dpyinfo->Xatom_MULTIPLE) |
7da64e5c | 210 | return QMULTIPLE; |
5c3a351a | 211 | if (atom == dpyinfo->Xatom_INCR) |
7da64e5c | 212 | return QINCR; |
5c3a351a | 213 | if (atom == dpyinfo->Xatom_EMACS_TMP) |
7da64e5c | 214 | return QEMACS_TMP; |
5c3a351a | 215 | if (atom == dpyinfo->Xatom_TARGETS) |
7da64e5c | 216 | return QTARGETS; |
5c3a351a | 217 | if (atom == dpyinfo->Xatom_NULL) |
7da64e5c | 218 | return QNULL; |
ede4db72 RS |
219 | |
220 | BLOCK_INPUT; | |
221 | str = XGetAtomName (display, atom); | |
222 | UNBLOCK_INPUT; | |
223 | #if 0 | |
224 | fprintf (stderr, " XGetAtomName --> %s\n", str); | |
225 | #endif | |
226 | if (! str) return Qnil; | |
227 | val = intern (str); | |
228 | BLOCK_INPUT; | |
0158abbc | 229 | /* This was allocated by Xlib, so use XFree. */ |
ede4db72 RS |
230 | XFree (str); |
231 | UNBLOCK_INPUT; | |
232 | return val; | |
233 | } | |
8a89415e | 234 | \f |
ede4db72 RS |
235 | /* Do protocol to assert ourself as a selection owner. |
236 | Update the Vselection_alist so that we can reply to later requests for | |
237 | our selection. */ | |
238 | ||
239 | static void | |
240 | x_own_selection (selection_name, selection_value) | |
241 | Lisp_Object selection_name, selection_value; | |
242 | { | |
378c33ca GM |
243 | struct frame *sf = SELECTED_FRAME (); |
244 | Window selecting_window = FRAME_X_WINDOW (sf); | |
245 | Display *display = FRAME_X_DISPLAY (sf); | |
7da64e5c | 246 | Time time = last_event_timestamp; |
ede4db72 | 247 | Atom selection_atom; |
378c33ca | 248 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (sf); |
5a499696 | 249 | int count; |
ede4db72 RS |
250 | |
251 | CHECK_SYMBOL (selection_name, 0); | |
5c3a351a | 252 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection_name); |
ede4db72 RS |
253 | |
254 | BLOCK_INPUT; | |
5a499696 | 255 | count = x_catch_errors (display); |
ede4db72 | 256 | XSetSelectionOwner (display, selection_atom, selecting_window, time); |
a7b24d46 | 257 | x_check_errors (display, "Can't set selection: %s"); |
5a499696 | 258 | x_uncatch_errors (display, count); |
ede4db72 RS |
259 | UNBLOCK_INPUT; |
260 | ||
261 | /* Now update the local cache */ | |
262 | { | |
263 | Lisp_Object selection_time; | |
264 | Lisp_Object selection_data; | |
265 | Lisp_Object prev_value; | |
266 | ||
267 | selection_time = long_to_cons ((unsigned long) time); | |
268 | selection_data = Fcons (selection_name, | |
269 | Fcons (selection_value, | |
118bd841 | 270 | Fcons (selection_time, |
378c33ca | 271 | Fcons (selected_frame, Qnil)))); |
ede4db72 RS |
272 | prev_value = assq_no_quit (selection_name, Vselection_alist); |
273 | ||
274 | Vselection_alist = Fcons (selection_data, Vselection_alist); | |
275 | ||
276 | /* If we already owned the selection, remove the old selection data. | |
277 | Perhaps we should destructively modify it instead. | |
278 | Don't use Fdelq as that may QUIT. */ | |
279 | if (!NILP (prev_value)) | |
280 | { | |
281 | Lisp_Object rest; /* we know it's not the CAR, so it's easy. */ | |
282 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) | |
8e713be6 | 283 | if (EQ (prev_value, Fcar (XCDR (rest)))) |
ede4db72 | 284 | { |
8e713be6 | 285 | XCDR (rest) = Fcdr (XCDR (rest)); |
ede4db72 RS |
286 | break; |
287 | } | |
288 | } | |
289 | } | |
290 | } | |
291 | \f | |
292 | /* Given a selection-name and desired type, look up our local copy of | |
293 | the selection value and convert it to the type. | |
294 | The value is nil or a string. | |
295 | This function is used both for remote requests | |
7da64e5c | 296 | and for local x-get-selection-internal. |
ede4db72 RS |
297 | |
298 | This calls random Lisp code, and may signal or gc. */ | |
299 | ||
300 | static Lisp_Object | |
301 | x_get_local_selection (selection_symbol, target_type) | |
302 | Lisp_Object selection_symbol, target_type; | |
303 | { | |
304 | Lisp_Object local_value; | |
305 | Lisp_Object handler_fn, value, type, check; | |
306 | int count; | |
307 | ||
308 | local_value = assq_no_quit (selection_symbol, Vselection_alist); | |
309 | ||
310 | if (NILP (local_value)) return Qnil; | |
311 | ||
312 | /* TIMESTAMP and MULTIPLE are special cases 'cause that's easiest. */ | |
313 | if (EQ (target_type, QTIMESTAMP)) | |
314 | { | |
315 | handler_fn = Qnil; | |
8e713be6 | 316 | value = XCAR (XCDR (XCDR (local_value))); |
ede4db72 RS |
317 | } |
318 | #if 0 | |
319 | else if (EQ (target_type, QDELETE)) | |
320 | { | |
321 | handler_fn = Qnil; | |
322 | Fx_disown_selection_internal | |
323 | (selection_symbol, | |
8e713be6 | 324 | XCAR (XCDR (XCDR (local_value)))); |
ede4db72 RS |
325 | value = QNULL; |
326 | } | |
327 | #endif | |
328 | ||
329 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
330 | else if (CONSP (target_type) | |
8e713be6 | 331 | && XCAR (target_type) == QMULTIPLE) |
ede4db72 | 332 | { |
9d2d1dd8 KH |
333 | Lisp_Object pairs; |
334 | int size; | |
ede4db72 | 335 | int i; |
8e713be6 | 336 | pairs = XCDR (target_type); |
9d2d1dd8 | 337 | size = XVECTOR (pairs)->size; |
ede4db72 RS |
338 | /* If the target is MULTIPLE, then target_type looks like |
339 | (MULTIPLE . [[SELECTION1 TARGET1] [SELECTION2 TARGET2] ... ]) | |
340 | We modify the second element of each pair in the vector and | |
341 | return it as [[SELECTION1 <value1>] [SELECTION2 <value2>] ... ] | |
342 | */ | |
343 | for (i = 0; i < size; i++) | |
344 | { | |
9d2d1dd8 KH |
345 | Lisp_Object pair; |
346 | pair = XVECTOR (pairs)->contents [i]; | |
ede4db72 RS |
347 | XVECTOR (pair)->contents [1] |
348 | = x_get_local_selection (XVECTOR (pair)->contents [0], | |
349 | XVECTOR (pair)->contents [1]); | |
350 | } | |
351 | return pairs; | |
352 | } | |
353 | #endif | |
354 | else | |
355 | { | |
356 | /* Don't allow a quit within the converter. | |
357 | When the user types C-g, he would be surprised | |
358 | if by luck it came during a converter. */ | |
359 | count = specpdl_ptr - specpdl; | |
360 | specbind (Qinhibit_quit, Qt); | |
361 | ||
362 | CHECK_SYMBOL (target_type, 0); | |
363 | handler_fn = Fcdr (Fassq (target_type, Vselection_converter_alist)); | |
1eb4d468 RS |
364 | if (!NILP (handler_fn)) |
365 | value = call3 (handler_fn, | |
366 | selection_symbol, target_type, | |
8e713be6 | 367 | XCAR (XCDR (local_value))); |
1eb4d468 RS |
368 | else |
369 | value = Qnil; | |
ede4db72 RS |
370 | unbind_to (count, Qnil); |
371 | } | |
372 | ||
373 | /* Make sure this value is of a type that we could transmit | |
374 | to another X client. */ | |
a87ed99c | 375 | |
ede4db72 RS |
376 | check = value; |
377 | if (CONSP (value) | |
8e713be6 KR |
378 | && SYMBOLP (XCAR (value))) |
379 | type = XCAR (value), | |
380 | check = XCDR (value); | |
ede4db72 RS |
381 | |
382 | if (STRINGP (check) | |
383 | || VECTORP (check) | |
384 | || SYMBOLP (check) | |
7da64e5c | 385 | || INTEGERP (check) |
ede4db72 RS |
386 | || NILP (value)) |
387 | return value; | |
a87ed99c | 388 | /* Check for a value that cons_to_long could handle. */ |
ede4db72 | 389 | else if (CONSP (check) |
8e713be6 KR |
390 | && INTEGERP (XCAR (check)) |
391 | && (INTEGERP (XCDR (check)) | |
ede4db72 | 392 | || |
8e713be6 KR |
393 | (CONSP (XCDR (check)) |
394 | && INTEGERP (XCAR (XCDR (check))) | |
395 | && NILP (XCDR (XCDR (check)))))) | |
ede4db72 RS |
396 | return value; |
397 | else | |
398 | return | |
399 | Fsignal (Qerror, | |
a87ed99c | 400 | Fcons (build_string ("invalid data returned by selection-conversion function"), |
ede4db72 RS |
401 | Fcons (handler_fn, Fcons (value, Qnil)))); |
402 | } | |
403 | \f | |
404 | /* Subroutines of x_reply_selection_request. */ | |
405 | ||
5d0ba25b | 406 | /* Send a SelectionNotify event to the requestor with property=None, |
ede4db72 RS |
407 | meaning we were unable to do what they wanted. */ |
408 | ||
409 | static void | |
410 | x_decline_selection_request (event) | |
411 | struct input_event *event; | |
412 | { | |
413 | XSelectionEvent reply; | |
414 | reply.type = SelectionNotify; | |
415 | reply.display = SELECTION_EVENT_DISPLAY (event); | |
5d0ba25b | 416 | reply.requestor = SELECTION_EVENT_REQUESTOR (event); |
ede4db72 RS |
417 | reply.selection = SELECTION_EVENT_SELECTION (event); |
418 | reply.time = SELECTION_EVENT_TIME (event); | |
419 | reply.target = SELECTION_EVENT_TARGET (event); | |
420 | reply.property = None; | |
421 | ||
422 | BLOCK_INPUT; | |
5d0ba25b | 423 | XSendEvent (reply.display, reply.requestor, False, 0L, |
7ffb2841 | 424 | (XEvent *) &reply); |
5c3a351a | 425 | XFlush (reply.display); |
ede4db72 RS |
426 | UNBLOCK_INPUT; |
427 | } | |
428 | ||
429 | /* This is the selection request currently being processed. | |
430 | It is set to zero when the request is fully processed. */ | |
431 | static struct input_event *x_selection_current_request; | |
432 | ||
ca29f2b8 GM |
433 | /* Display info in x_selection_request. */ |
434 | ||
435 | static struct x_display_info *selection_request_dpyinfo; | |
436 | ||
ede4db72 | 437 | /* Used as an unwind-protect clause so that, if a selection-converter signals |
2a1a4c9d | 438 | an error, we tell the requester that we were unable to do what they wanted |
ede4db72 RS |
439 | before we throw to top-level or go into the debugger or whatever. */ |
440 | ||
441 | static Lisp_Object | |
442 | x_selection_request_lisp_error (ignore) | |
443 | Lisp_Object ignore; | |
444 | { | |
ca29f2b8 GM |
445 | if (x_selection_current_request != 0 |
446 | && selection_request_dpyinfo->display) | |
ede4db72 RS |
447 | x_decline_selection_request (x_selection_current_request); |
448 | return Qnil; | |
449 | } | |
450 | \f | |
d1f21a66 RS |
451 | |
452 | /* This stuff is so that INCR selections are reentrant (that is, so we can | |
453 | be servicing multiple INCR selection requests simultaneously.) I haven't | |
454 | actually tested that yet. */ | |
455 | ||
456 | /* Keep a list of the property changes that are awaited. */ | |
457 | ||
458 | struct prop_location | |
459 | { | |
460 | int identifier; | |
461 | Display *display; | |
462 | Window window; | |
463 | Atom property; | |
464 | int desired_state; | |
465 | int arrived; | |
466 | struct prop_location *next; | |
467 | }; | |
468 | ||
469 | static struct prop_location *expect_property_change (); | |
470 | static void wait_for_property_change (); | |
471 | static void unexpect_property_change (); | |
472 | static int waiting_for_other_props_on_window (); | |
473 | ||
474 | static int prop_location_identifier; | |
475 | ||
476 | static Lisp_Object property_change_reply; | |
477 | ||
478 | static struct prop_location *property_change_reply_object; | |
479 | ||
480 | static struct prop_location *property_change_wait_list; | |
55b2d45d RS |
481 | |
482 | static Lisp_Object | |
483 | queue_selection_requests_unwind (frame) | |
484 | Lisp_Object frame; | |
485 | { | |
486 | FRAME_PTR f = XFRAME (frame); | |
487 | ||
488 | if (! NILP (frame)) | |
489 | x_stop_queuing_selection_requests (FRAME_X_DISPLAY (f)); | |
ab552306 | 490 | return Qnil; |
55b2d45d RS |
491 | } |
492 | ||
493 | /* Return some frame whose display info is DPYINFO. | |
494 | Return nil if there is none. */ | |
495 | ||
496 | static Lisp_Object | |
497 | some_frame_on_display (dpyinfo) | |
498 | struct x_display_info *dpyinfo; | |
499 | { | |
500 | Lisp_Object list, frame; | |
501 | ||
502 | FOR_EACH_FRAME (list, frame) | |
503 | { | |
504 | if (FRAME_X_DISPLAY_INFO (XFRAME (frame)) == dpyinfo) | |
505 | return frame; | |
506 | } | |
507 | ||
508 | return Qnil; | |
509 | } | |
d1f21a66 | 510 | \f |
ede4db72 RS |
511 | /* Send the reply to a selection request event EVENT. |
512 | TYPE is the type of selection data requested. | |
513 | DATA and SIZE describe the data to send, already converted. | |
514 | FORMAT is the unit-size (in bits) of the data to be transmitted. */ | |
515 | ||
516 | static void | |
517 | x_reply_selection_request (event, format, data, size, type) | |
518 | struct input_event *event; | |
519 | int format, size; | |
520 | unsigned char *data; | |
521 | Atom type; | |
522 | { | |
523 | XSelectionEvent reply; | |
524 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
5d0ba25b | 525 | Window window = SELECTION_EVENT_REQUESTOR (event); |
ede4db72 RS |
526 | int bytes_remaining; |
527 | int format_bytes = format/8; | |
528 | int max_bytes = SELECTION_QUANTUM (display); | |
5c3a351a | 529 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
5a499696 | 530 | int count; |
ede4db72 RS |
531 | |
532 | if (max_bytes > MAX_SELECTION_QUANTUM) | |
533 | max_bytes = MAX_SELECTION_QUANTUM; | |
534 | ||
535 | reply.type = SelectionNotify; | |
536 | reply.display = display; | |
5d0ba25b | 537 | reply.requestor = window; |
ede4db72 RS |
538 | reply.selection = SELECTION_EVENT_SELECTION (event); |
539 | reply.time = SELECTION_EVENT_TIME (event); | |
540 | reply.target = SELECTION_EVENT_TARGET (event); | |
541 | reply.property = SELECTION_EVENT_PROPERTY (event); | |
542 | if (reply.property == None) | |
543 | reply.property = reply.target; | |
544 | ||
545 | /* #### XChangeProperty can generate BadAlloc, and we must handle it! */ | |
afe1529d | 546 | BLOCK_INPUT; |
ad7f9d12 | 547 | count = x_catch_errors (display); |
ede4db72 | 548 | |
ede4db72 RS |
549 | /* Store the data on the requested property. |
550 | If the selection is large, only store the first N bytes of it. | |
551 | */ | |
552 | bytes_remaining = size * format_bytes; | |
553 | if (bytes_remaining <= max_bytes) | |
554 | { | |
555 | /* Send all the data at once, with minimal handshaking. */ | |
556 | #if 0 | |
557 | fprintf (stderr,"\nStoring all %d\n", bytes_remaining); | |
558 | #endif | |
559 | XChangeProperty (display, window, reply.property, type, format, | |
560 | PropModeReplace, data, size); | |
561 | /* At this point, the selection was successfully stored; ack it. */ | |
2f65feb6 | 562 | XSendEvent (display, window, False, 0L, (XEvent *) &reply); |
ede4db72 RS |
563 | } |
564 | else | |
565 | { | |
566 | /* Send an INCR selection. */ | |
d1f21a66 | 567 | struct prop_location *wait_object; |
afe1529d | 568 | int had_errors; |
55b2d45d | 569 | Lisp_Object frame; |
ede4db72 | 570 | |
55b2d45d RS |
571 | frame = some_frame_on_display (dpyinfo); |
572 | ||
573 | /* If the display no longer has frames, we can't expect | |
574 | to get many more selection requests from it, so don't | |
575 | bother trying to queue them. */ | |
576 | if (!NILP (frame)) | |
577 | { | |
578 | x_start_queuing_selection_requests (display); | |
579 | ||
580 | record_unwind_protect (queue_selection_requests_unwind, | |
581 | frame); | |
582 | } | |
2f65feb6 | 583 | |
19126e11 | 584 | if (x_window_to_frame (dpyinfo, window)) /* #### debug */ |
606140dd | 585 | error ("Attempt to transfer an INCR to ourself!"); |
ede4db72 RS |
586 | #if 0 |
587 | fprintf (stderr, "\nINCR %d\n", bytes_remaining); | |
588 | #endif | |
d1f21a66 RS |
589 | wait_object = expect_property_change (display, window, reply.property, |
590 | PropertyDelete); | |
ede4db72 | 591 | |
5c3a351a | 592 | XChangeProperty (display, window, reply.property, dpyinfo->Xatom_INCR, |
55b2d45d RS |
593 | 32, PropModeReplace, |
594 | (unsigned char *) &bytes_remaining, 1); | |
ede4db72 RS |
595 | XSelectInput (display, window, PropertyChangeMask); |
596 | /* Tell 'em the INCR data is there... */ | |
55b2d45d | 597 | XSendEvent (display, window, False, 0L, (XEvent *) &reply); |
5c3a351a | 598 | XFlush (display); |
afe1529d RS |
599 | |
600 | had_errors = x_had_errors_p (display); | |
2f65feb6 | 601 | UNBLOCK_INPUT; |
ede4db72 | 602 | |
2a1a4c9d | 603 | /* First, wait for the requester to ack by deleting the property. |
ede4db72 | 604 | This can run random lisp code (process handlers) or signal. */ |
afe1529d RS |
605 | if (! had_errors) |
606 | wait_for_property_change (wait_object); | |
ede4db72 RS |
607 | |
608 | while (bytes_remaining) | |
609 | { | |
610 | int i = ((bytes_remaining < max_bytes) | |
611 | ? bytes_remaining | |
612 | : max_bytes); | |
2f65feb6 RS |
613 | |
614 | BLOCK_INPUT; | |
615 | ||
d1f21a66 RS |
616 | wait_object |
617 | = expect_property_change (display, window, reply.property, | |
618 | PropertyDelete); | |
ede4db72 RS |
619 | #if 0 |
620 | fprintf (stderr," INCR adding %d\n", i); | |
621 | #endif | |
622 | /* Append the next chunk of data to the property. */ | |
623 | XChangeProperty (display, window, reply.property, type, format, | |
624 | PropModeAppend, data, i / format_bytes); | |
625 | bytes_remaining -= i; | |
626 | data += i; | |
5c3a351a | 627 | XFlush (display); |
afe1529d | 628 | had_errors = x_had_errors_p (display); |
2f65feb6 | 629 | UNBLOCK_INPUT; |
ede4db72 | 630 | |
afe1529d RS |
631 | if (had_errors) |
632 | break; | |
633 | ||
2a1a4c9d | 634 | /* Now wait for the requester to ack this chunk by deleting the |
ede4db72 RS |
635 | property. This can run random lisp code or signal. |
636 | */ | |
d1f21a66 | 637 | wait_for_property_change (wait_object); |
ede4db72 | 638 | } |
2a1a4c9d | 639 | /* Now write a zero-length chunk to the property to tell the requester |
ede4db72 RS |
640 | that we're done. */ |
641 | #if 0 | |
642 | fprintf (stderr," INCR done\n"); | |
643 | #endif | |
2f65feb6 | 644 | BLOCK_INPUT; |
ede4db72 RS |
645 | if (! waiting_for_other_props_on_window (display, window)) |
646 | XSelectInput (display, window, 0L); | |
647 | ||
648 | XChangeProperty (display, window, reply.property, type, format, | |
649 | PropModeReplace, data, 0); | |
650 | } | |
afe1529d | 651 | |
47a6ac17 GM |
652 | /* The window we're communicating with may have been deleted |
653 | in the meantime (that's a real situation from a bug report). | |
654 | In this case, there may be events in the event queue still | |
655 | refering to the deleted window, and we'll get a BadWindow error | |
656 | in XTread_socket when processing the events. I don't have | |
657 | an idea how to fix that. gerd, 2001-01-98. */ | |
afe1529d | 658 | XFlush (display); |
5a499696 | 659 | x_uncatch_errors (display, count); |
afe1529d | 660 | UNBLOCK_INPUT; |
ede4db72 RS |
661 | } |
662 | \f | |
663 | /* Handle a SelectionRequest event EVENT. | |
664 | This is called from keyboard.c when such an event is found in the queue. */ | |
665 | ||
666 | void | |
667 | x_handle_selection_request (event) | |
668 | struct input_event *event; | |
669 | { | |
670 | struct gcpro gcpro1, gcpro2, gcpro3; | |
9d2d1dd8 | 671 | Lisp_Object local_selection_data; |
ede4db72 | 672 | Lisp_Object selection_symbol; |
9d2d1dd8 KH |
673 | Lisp_Object target_symbol; |
674 | Lisp_Object converted_selection; | |
ede4db72 | 675 | Time local_selection_time; |
9d2d1dd8 | 676 | Lisp_Object successful_p; |
ede4db72 | 677 | int count; |
5c3a351a RS |
678 | struct x_display_info *dpyinfo |
679 | = x_display_info_for_display (SELECTION_EVENT_DISPLAY (event)); | |
ede4db72 | 680 | |
9d2d1dd8 KH |
681 | local_selection_data = Qnil; |
682 | target_symbol = Qnil; | |
683 | converted_selection = Qnil; | |
684 | successful_p = Qnil; | |
685 | ||
ede4db72 RS |
686 | GCPRO3 (local_selection_data, converted_selection, target_symbol); |
687 | ||
5c3a351a RS |
688 | selection_symbol = x_atom_to_symbol (dpyinfo, |
689 | SELECTION_EVENT_DISPLAY (event), | |
ede4db72 RS |
690 | SELECTION_EVENT_SELECTION (event)); |
691 | ||
692 | local_selection_data = assq_no_quit (selection_symbol, Vselection_alist); | |
ede4db72 RS |
693 | |
694 | if (NILP (local_selection_data)) | |
695 | { | |
696 | /* Someone asked for the selection, but we don't have it any more. | |
697 | */ | |
698 | x_decline_selection_request (event); | |
699 | goto DONE; | |
700 | } | |
701 | ||
702 | local_selection_time = (Time) | |
8e713be6 | 703 | cons_to_long (XCAR (XCDR (XCDR (local_selection_data)))); |
ede4db72 RS |
704 | |
705 | if (SELECTION_EVENT_TIME (event) != CurrentTime | |
7da64e5c | 706 | && local_selection_time > SELECTION_EVENT_TIME (event)) |
ede4db72 RS |
707 | { |
708 | /* Someone asked for the selection, and we have one, but not the one | |
709 | they're looking for. | |
710 | */ | |
711 | x_decline_selection_request (event); | |
712 | goto DONE; | |
713 | } | |
714 | ||
ede4db72 | 715 | x_selection_current_request = event; |
ca29f2b8 GM |
716 | count = BINDING_STACK_SIZE (); |
717 | selection_request_dpyinfo = dpyinfo; | |
ede4db72 RS |
718 | record_unwind_protect (x_selection_request_lisp_error, Qnil); |
719 | ||
5c3a351a | 720 | target_symbol = x_atom_to_symbol (dpyinfo, SELECTION_EVENT_DISPLAY (event), |
ede4db72 RS |
721 | SELECTION_EVENT_TARGET (event)); |
722 | ||
723 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
724 | if (EQ (target_symbol, QMULTIPLE)) | |
725 | target_symbol = fetch_multiple_target (event); | |
726 | #endif | |
727 | ||
728 | /* Convert lisp objects back into binary data */ | |
729 | ||
730 | converted_selection | |
731 | = x_get_local_selection (selection_symbol, target_symbol); | |
732 | ||
733 | if (! NILP (converted_selection)) | |
734 | { | |
735 | unsigned char *data; | |
736 | unsigned int size; | |
737 | int format; | |
738 | Atom type; | |
aca39f42 RS |
739 | int nofree; |
740 | ||
2f65feb6 RS |
741 | lisp_data_to_selection_data (SELECTION_EVENT_DISPLAY (event), |
742 | converted_selection, | |
aca39f42 | 743 | &data, &type, &size, &format, &nofree); |
ede4db72 RS |
744 | |
745 | x_reply_selection_request (event, format, data, size, type); | |
746 | successful_p = Qt; | |
747 | ||
748 | /* Indicate we have successfully processed this event. */ | |
7da64e5c | 749 | x_selection_current_request = 0; |
ede4db72 | 750 | |
4feb31b2 | 751 | /* Use xfree, not XFree, because lisp_data_to_selection_data |
0158abbc | 752 | calls xmalloc itself. */ |
aca39f42 | 753 | if (!nofree) |
4feb31b2 | 754 | xfree (data); |
ede4db72 RS |
755 | } |
756 | unbind_to (count, Qnil); | |
757 | ||
758 | DONE: | |
759 | ||
760 | UNGCPRO; | |
761 | ||
762 | /* Let random lisp code notice that the selection has been asked for. */ | |
763 | { | |
9d2d1dd8 KH |
764 | Lisp_Object rest; |
765 | rest = Vx_sent_selection_hooks; | |
ede4db72 RS |
766 | if (!EQ (rest, Qunbound)) |
767 | for (; CONSP (rest); rest = Fcdr (rest)) | |
768 | call3 (Fcar (rest), selection_symbol, target_symbol, successful_p); | |
769 | } | |
770 | } | |
771 | \f | |
e18e6130 | 772 | /* Handle a SelectionClear event EVENT, which indicates that some |
ede4db72 RS |
773 | client cleared out our previously asserted selection. |
774 | This is called from keyboard.c when such an event is found in the queue. */ | |
775 | ||
776 | void | |
777 | x_handle_selection_clear (event) | |
778 | struct input_event *event; | |
779 | { | |
780 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
781 | Atom selection = SELECTION_EVENT_SELECTION (event); | |
782 | Time changed_owner_time = SELECTION_EVENT_TIME (event); | |
783 | ||
784 | Lisp_Object selection_symbol, local_selection_data; | |
785 | Time local_selection_time; | |
5c3a351a | 786 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
e18e6130 RS |
787 | struct x_display_info *t_dpyinfo; |
788 | ||
789 | /* If the new selection owner is also Emacs, | |
790 | don't clear the new selection. */ | |
791 | BLOCK_INPUT; | |
792 | /* Check each display on the same terminal, | |
793 | to see if this Emacs job now owns the selection | |
794 | through that display. */ | |
795 | for (t_dpyinfo = x_display_list; t_dpyinfo; t_dpyinfo = t_dpyinfo->next) | |
796 | if (t_dpyinfo->kboard == dpyinfo->kboard) | |
797 | { | |
798 | Window owner_window | |
799 | = XGetSelectionOwner (t_dpyinfo->display, selection); | |
800 | if (x_window_to_frame (t_dpyinfo, owner_window) != 0) | |
801 | { | |
802 | UNBLOCK_INPUT; | |
803 | return; | |
804 | } | |
805 | } | |
806 | UNBLOCK_INPUT; | |
ede4db72 | 807 | |
5c3a351a | 808 | selection_symbol = x_atom_to_symbol (dpyinfo, display, selection); |
ede4db72 RS |
809 | |
810 | local_selection_data = assq_no_quit (selection_symbol, Vselection_alist); | |
811 | ||
812 | /* Well, we already believe that we don't own it, so that's just fine. */ | |
813 | if (NILP (local_selection_data)) return; | |
814 | ||
815 | local_selection_time = (Time) | |
8e713be6 | 816 | cons_to_long (XCAR (XCDR (XCDR (local_selection_data)))); |
ede4db72 RS |
817 | |
818 | /* This SelectionClear is for a selection that we no longer own, so we can | |
819 | disregard it. (That is, we have reasserted the selection since this | |
820 | request was generated.) */ | |
821 | ||
822 | if (changed_owner_time != CurrentTime | |
823 | && local_selection_time > changed_owner_time) | |
824 | return; | |
825 | ||
826 | /* Otherwise, we're really honest and truly being told to drop it. | |
827 | Don't use Fdelq as that may QUIT;. */ | |
828 | ||
829 | if (EQ (local_selection_data, Fcar (Vselection_alist))) | |
830 | Vselection_alist = Fcdr (Vselection_alist); | |
831 | else | |
832 | { | |
833 | Lisp_Object rest; | |
834 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) | |
8e713be6 | 835 | if (EQ (local_selection_data, Fcar (XCDR (rest)))) |
ede4db72 | 836 | { |
8e713be6 | 837 | XCDR (rest) = Fcdr (XCDR (rest)); |
ede4db72 RS |
838 | break; |
839 | } | |
840 | } | |
841 | ||
842 | /* Let random lisp code notice that the selection has been stolen. */ | |
843 | ||
844 | { | |
d1f21a66 RS |
845 | Lisp_Object rest; |
846 | rest = Vx_lost_selection_hooks; | |
ede4db72 | 847 | if (!EQ (rest, Qunbound)) |
d1f21a66 RS |
848 | { |
849 | for (; CONSP (rest); rest = Fcdr (rest)) | |
850 | call1 (Fcar (rest), selection_symbol); | |
7c6b2ea4 | 851 | prepare_menu_bars (); |
d1f21a66 RS |
852 | redisplay_preserve_echo_area (); |
853 | } | |
ede4db72 RS |
854 | } |
855 | } | |
856 | ||
118bd841 RS |
857 | /* Clear all selections that were made from frame F. |
858 | We do this when about to delete a frame. */ | |
859 | ||
860 | void | |
861 | x_clear_frame_selections (f) | |
862 | FRAME_PTR f; | |
863 | { | |
864 | Lisp_Object frame; | |
865 | Lisp_Object rest; | |
866 | ||
90851bbe | 867 | XSETFRAME (frame, f); |
118bd841 RS |
868 | |
869 | /* Otherwise, we're really honest and truly being told to drop it. | |
870 | Don't use Fdelq as that may QUIT;. */ | |
871 | ||
0d199f9c RS |
872 | /* Delete elements from the beginning of Vselection_alist. */ |
873 | while (!NILP (Vselection_alist) | |
874 | && EQ (frame, Fcar (Fcdr (Fcdr (Fcdr (Fcar (Vselection_alist))))))) | |
875 | { | |
876 | /* Let random Lisp code notice that the selection has been stolen. */ | |
877 | Lisp_Object hooks, selection_symbol; | |
878 | ||
879 | hooks = Vx_lost_selection_hooks; | |
880 | selection_symbol = Fcar (Fcar (Vselection_alist)); | |
881 | ||
882 | if (!EQ (hooks, Qunbound)) | |
883 | { | |
884 | for (; CONSP (hooks); hooks = Fcdr (hooks)) | |
885 | call1 (Fcar (hooks), selection_symbol); | |
996b804d MB |
886 | #if 0 /* This can crash when deleting a frame |
887 | from x_connection_closed. Anyway, it seems unnecessary; | |
888 | something else should cause a redisplay. */ | |
0d199f9c | 889 | redisplay_preserve_echo_area (); |
996b804d | 890 | #endif |
0d199f9c RS |
891 | } |
892 | ||
893 | Vselection_alist = Fcdr (Vselection_alist); | |
894 | } | |
895 | ||
896 | /* Delete elements after the beginning of Vselection_alist. */ | |
118bd841 | 897 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) |
8e713be6 | 898 | if (EQ (frame, Fcar (Fcdr (Fcdr (Fcdr (Fcar (XCDR (rest)))))))) |
118bd841 RS |
899 | { |
900 | /* Let random Lisp code notice that the selection has been stolen. */ | |
901 | Lisp_Object hooks, selection_symbol; | |
902 | ||
903 | hooks = Vx_lost_selection_hooks; | |
8e713be6 | 904 | selection_symbol = Fcar (Fcar (XCDR (rest))); |
118bd841 RS |
905 | |
906 | if (!EQ (hooks, Qunbound)) | |
907 | { | |
908 | for (; CONSP (hooks); hooks = Fcdr (hooks)) | |
909 | call1 (Fcar (hooks), selection_symbol); | |
996b804d | 910 | #if 0 /* See above */ |
118bd841 | 911 | redisplay_preserve_echo_area (); |
996b804d | 912 | #endif |
118bd841 | 913 | } |
8e713be6 | 914 | XCDR (rest) = Fcdr (XCDR (rest)); |
118bd841 RS |
915 | break; |
916 | } | |
917 | } | |
ede4db72 | 918 | \f |
ede4db72 RS |
919 | /* Nonzero if any properties for DISPLAY and WINDOW |
920 | are on the list of what we are waiting for. */ | |
921 | ||
922 | static int | |
923 | waiting_for_other_props_on_window (display, window) | |
924 | Display *display; | |
925 | Window window; | |
926 | { | |
927 | struct prop_location *rest = property_change_wait_list; | |
928 | while (rest) | |
929 | if (rest->display == display && rest->window == window) | |
930 | return 1; | |
931 | else | |
932 | rest = rest->next; | |
933 | return 0; | |
934 | } | |
935 | ||
936 | /* Add an entry to the list of property changes we are waiting for. | |
937 | DISPLAY, WINDOW, PROPERTY, STATE describe what we will wait for. | |
938 | The return value is a number that uniquely identifies | |
939 | this awaited property change. */ | |
940 | ||
d1f21a66 | 941 | static struct prop_location * |
ede4db72 RS |
942 | expect_property_change (display, window, property, state) |
943 | Display *display; | |
944 | Window window; | |
6c070502 | 945 | Atom property; |
ede4db72 RS |
946 | int state; |
947 | { | |
948 | struct prop_location *pl | |
949 | = (struct prop_location *) xmalloc (sizeof (struct prop_location)); | |
2f65feb6 | 950 | pl->identifier = ++prop_location_identifier; |
ede4db72 RS |
951 | pl->display = display; |
952 | pl->window = window; | |
953 | pl->property = property; | |
954 | pl->desired_state = state; | |
955 | pl->next = property_change_wait_list; | |
d1f21a66 | 956 | pl->arrived = 0; |
ede4db72 | 957 | property_change_wait_list = pl; |
d1f21a66 | 958 | return pl; |
ede4db72 RS |
959 | } |
960 | ||
961 | /* Delete an entry from the list of property changes we are waiting for. | |
2f65feb6 | 962 | IDENTIFIER is the number that uniquely identifies the entry. */ |
ede4db72 RS |
963 | |
964 | static void | |
d1f21a66 RS |
965 | unexpect_property_change (location) |
966 | struct prop_location *location; | |
ede4db72 RS |
967 | { |
968 | struct prop_location *prev = 0, *rest = property_change_wait_list; | |
969 | while (rest) | |
970 | { | |
d1f21a66 | 971 | if (rest == location) |
ede4db72 RS |
972 | { |
973 | if (prev) | |
974 | prev->next = rest->next; | |
975 | else | |
976 | property_change_wait_list = rest->next; | |
4feb31b2 | 977 | xfree (rest); |
ede4db72 RS |
978 | return; |
979 | } | |
980 | prev = rest; | |
981 | rest = rest->next; | |
982 | } | |
983 | } | |
984 | ||
2f65feb6 RS |
985 | /* Remove the property change expectation element for IDENTIFIER. */ |
986 | ||
987 | static Lisp_Object | |
988 | wait_for_property_change_unwind (identifierval) | |
989 | Lisp_Object identifierval; | |
990 | { | |
c4898489 | 991 | unexpect_property_change ((struct prop_location *) |
8e713be6 KR |
992 | (XFASTINT (XCAR (identifierval)) << 16 |
993 | | XFASTINT (XCDR (identifierval)))); | |
ab552306 | 994 | return Qnil; |
2f65feb6 RS |
995 | } |
996 | ||
ede4db72 | 997 | /* Actually wait for a property change. |
2f65feb6 | 998 | IDENTIFIER should be the value that expect_property_change returned. */ |
ede4db72 RS |
999 | |
1000 | static void | |
d1f21a66 RS |
1001 | wait_for_property_change (location) |
1002 | struct prop_location *location; | |
ede4db72 | 1003 | { |
2f65feb6 RS |
1004 | int secs, usecs; |
1005 | int count = specpdl_ptr - specpdl; | |
d1f21a66 RS |
1006 | Lisp_Object tem; |
1007 | ||
c4898489 | 1008 | tem = Fcons (Qnil, Qnil); |
8e713be6 KR |
1009 | XSETFASTINT (XCAR (tem), (EMACS_UINT)location >> 16); |
1010 | XSETFASTINT (XCDR (tem), (EMACS_UINT)location & 0xffff); | |
2f65feb6 RS |
1011 | |
1012 | /* Make sure to do unexpect_property_change if we quit or err. */ | |
d1f21a66 | 1013 | record_unwind_protect (wait_for_property_change_unwind, tem); |
2f65feb6 | 1014 | |
8e713be6 | 1015 | XCAR (property_change_reply) = Qnil; |
2f65feb6 | 1016 | |
afe1529d RS |
1017 | property_change_reply_object = location; |
1018 | /* If the event we are waiting for arrives beyond here, it will set | |
1019 | property_change_reply, because property_change_reply_object says so. */ | |
d1f21a66 RS |
1020 | if (! location->arrived) |
1021 | { | |
d1f21a66 RS |
1022 | secs = x_selection_timeout / 1000; |
1023 | usecs = (x_selection_timeout % 1000) * 1000; | |
1024 | wait_reading_process_input (secs, usecs, property_change_reply, 0); | |
1025 | ||
8e713be6 | 1026 | if (NILP (XCAR (property_change_reply))) |
606140dd | 1027 | error ("Timed out waiting for property-notify event"); |
d1f21a66 | 1028 | } |
2f65feb6 RS |
1029 | |
1030 | unbind_to (count, Qnil); | |
ede4db72 RS |
1031 | } |
1032 | ||
1033 | /* Called from XTread_socket in response to a PropertyNotify event. */ | |
1034 | ||
1035 | void | |
1036 | x_handle_property_notify (event) | |
1037 | XPropertyEvent *event; | |
1038 | { | |
1039 | struct prop_location *prev = 0, *rest = property_change_wait_list; | |
1040 | while (rest) | |
1041 | { | |
1042 | if (rest->property == event->atom | |
1043 | && rest->window == event->window | |
1044 | && rest->display == event->display | |
1045 | && rest->desired_state == event->state) | |
1046 | { | |
1047 | #if 0 | |
1048 | fprintf (stderr, "Saw expected prop-%s on %s\n", | |
1049 | (event->state == PropertyDelete ? "delete" : "change"), | |
5c3a351a | 1050 | (char *) XSYMBOL (x_atom_to_symbol (dpyinfo, event->display, |
ede4db72 RS |
1051 | event->atom)) |
1052 | ->name->data); | |
1053 | #endif | |
1054 | ||
d1f21a66 RS |
1055 | rest->arrived = 1; |
1056 | ||
ede4db72 RS |
1057 | /* If this is the one wait_for_property_change is waiting for, |
1058 | tell it to wake up. */ | |
d1f21a66 | 1059 | if (rest == property_change_reply_object) |
8e713be6 | 1060 | XCAR (property_change_reply) = Qt; |
ede4db72 RS |
1061 | |
1062 | if (prev) | |
1063 | prev->next = rest->next; | |
1064 | else | |
1065 | property_change_wait_list = rest->next; | |
4feb31b2 | 1066 | xfree (rest); |
ede4db72 RS |
1067 | return; |
1068 | } | |
1069 | prev = rest; | |
1070 | rest = rest->next; | |
1071 | } | |
1072 | #if 0 | |
1073 | fprintf (stderr, "Saw UNexpected prop-%s on %s\n", | |
1074 | (event->state == PropertyDelete ? "delete" : "change"), | |
5c3a351a RS |
1075 | (char *) XSYMBOL (x_atom_to_symbol (dpyinfo, |
1076 | event->display, event->atom)) | |
ede4db72 RS |
1077 | ->name->data); |
1078 | #endif | |
1079 | } | |
1080 | ||
1081 | ||
1082 | \f | |
1083 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1084 | ||
1085 | static Lisp_Object | |
1086 | fetch_multiple_target (event) | |
1087 | XSelectionRequestEvent *event; | |
1088 | { | |
1089 | Display *display = event->display; | |
5d0ba25b | 1090 | Window window = event->requestor; |
ede4db72 RS |
1091 | Atom target = event->target; |
1092 | Atom selection_atom = event->selection; | |
1093 | int result; | |
1094 | ||
1095 | return | |
1096 | Fcons (QMULTIPLE, | |
1097 | x_get_window_property_as_lisp_data (display, window, target, | |
1098 | QMULTIPLE, selection_atom)); | |
1099 | } | |
1100 | ||
1101 | static Lisp_Object | |
1102 | copy_multiple_data (obj) | |
1103 | Lisp_Object obj; | |
1104 | { | |
1105 | Lisp_Object vec; | |
1106 | int i; | |
1107 | int size; | |
1108 | if (CONSP (obj)) | |
8e713be6 | 1109 | return Fcons (XCAR (obj), copy_multiple_data (XCDR (obj))); |
ede4db72 RS |
1110 | |
1111 | CHECK_VECTOR (obj, 0); | |
1112 | vec = Fmake_vector (size = XVECTOR (obj)->size, Qnil); | |
1113 | for (i = 0; i < size; i++) | |
1114 | { | |
1115 | Lisp_Object vec2 = XVECTOR (obj)->contents [i]; | |
1116 | CHECK_VECTOR (vec2, 0); | |
1117 | if (XVECTOR (vec2)->size != 2) | |
1118 | /* ??? Confusing error message */ | |
1119 | Fsignal (Qerror, Fcons (build_string ("vectors must be of length 2"), | |
1120 | Fcons (vec2, Qnil))); | |
1121 | XVECTOR (vec)->contents [i] = Fmake_vector (2, Qnil); | |
1122 | XVECTOR (XVECTOR (vec)->contents [i])->contents [0] | |
1123 | = XVECTOR (vec2)->contents [0]; | |
1124 | XVECTOR (XVECTOR (vec)->contents [i])->contents [1] | |
1125 | = XVECTOR (vec2)->contents [1]; | |
1126 | } | |
1127 | return vec; | |
1128 | } | |
1129 | ||
1130 | #endif | |
1131 | ||
1132 | \f | |
1133 | /* Variables for communication with x_handle_selection_notify. */ | |
1134 | static Atom reading_which_selection; | |
1135 | static Lisp_Object reading_selection_reply; | |
1136 | static Window reading_selection_window; | |
1137 | ||
1138 | /* Do protocol to read selection-data from the server. | |
1139 | Converts this to Lisp data and returns it. */ | |
1140 | ||
1141 | static Lisp_Object | |
1142 | x_get_foreign_selection (selection_symbol, target_type) | |
1143 | Lisp_Object selection_symbol, target_type; | |
1144 | { | |
378c33ca GM |
1145 | struct frame *sf = SELECTED_FRAME (); |
1146 | Window requestor_window = FRAME_X_WINDOW (sf); | |
1147 | Display *display = FRAME_X_DISPLAY (sf); | |
1148 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
5d0ba25b | 1149 | Time requestor_time = last_event_timestamp; |
5c3a351a RS |
1150 | Atom target_property = dpyinfo->Xatom_EMACS_TMP; |
1151 | Atom selection_atom = symbol_to_x_atom (dpyinfo, display, selection_symbol); | |
ede4db72 | 1152 | Atom type_atom; |
80da0190 | 1153 | int secs, usecs; |
5a499696 | 1154 | int count; |
55b2d45d | 1155 | Lisp_Object frame; |
ede4db72 RS |
1156 | |
1157 | if (CONSP (target_type)) | |
8e713be6 | 1158 | type_atom = symbol_to_x_atom (dpyinfo, display, XCAR (target_type)); |
ede4db72 | 1159 | else |
5c3a351a | 1160 | type_atom = symbol_to_x_atom (dpyinfo, display, target_type); |
ede4db72 RS |
1161 | |
1162 | BLOCK_INPUT; | |
5a499696 | 1163 | count = x_catch_errors (display); |
ede4db72 | 1164 | XConvertSelection (display, selection_atom, type_atom, target_property, |
5d0ba25b | 1165 | requestor_window, requestor_time); |
5c3a351a | 1166 | XFlush (display); |
ede4db72 RS |
1167 | |
1168 | /* Prepare to block until the reply has been read. */ | |
5d0ba25b | 1169 | reading_selection_window = requestor_window; |
ede4db72 | 1170 | reading_which_selection = selection_atom; |
8e713be6 | 1171 | XCAR (reading_selection_reply) = Qnil; |
55b2d45d RS |
1172 | |
1173 | frame = some_frame_on_display (dpyinfo); | |
1174 | ||
1175 | /* If the display no longer has frames, we can't expect | |
1176 | to get many more selection requests from it, so don't | |
1177 | bother trying to queue them. */ | |
1178 | if (!NILP (frame)) | |
1179 | { | |
1180 | x_start_queuing_selection_requests (display); | |
1181 | ||
1182 | record_unwind_protect (queue_selection_requests_unwind, | |
1183 | frame); | |
1184 | } | |
ede4db72 RS |
1185 | UNBLOCK_INPUT; |
1186 | ||
80da0190 RS |
1187 | /* This allows quits. Also, don't wait forever. */ |
1188 | secs = x_selection_timeout / 1000; | |
1189 | usecs = (x_selection_timeout % 1000) * 1000; | |
1190 | wait_reading_process_input (secs, usecs, reading_selection_reply, 0); | |
ede4db72 | 1191 | |
7c6b2ea4 | 1192 | BLOCK_INPUT; |
a7b24d46 | 1193 | x_check_errors (display, "Cannot get selection: %s"); |
5a499696 | 1194 | x_uncatch_errors (display, count); |
7c6b2ea4 RS |
1195 | UNBLOCK_INPUT; |
1196 | ||
8e713be6 | 1197 | if (NILP (XCAR (reading_selection_reply))) |
606140dd | 1198 | error ("Timed out waiting for reply from selection owner"); |
8e713be6 | 1199 | if (EQ (XCAR (reading_selection_reply), Qlambda)) |
606140dd | 1200 | error ("No `%s' selection", XSYMBOL (selection_symbol)->name->data); |
ede4db72 RS |
1201 | |
1202 | /* Otherwise, the selection is waiting for us on the requested property. */ | |
1203 | return | |
5d0ba25b | 1204 | x_get_window_property_as_lisp_data (display, requestor_window, |
ede4db72 RS |
1205 | target_property, target_type, |
1206 | selection_atom); | |
1207 | } | |
1208 | \f | |
1209 | /* Subroutines of x_get_window_property_as_lisp_data */ | |
1210 | ||
4feb31b2 | 1211 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1212 | |
ede4db72 RS |
1213 | static void |
1214 | x_get_window_property (display, window, property, data_ret, bytes_ret, | |
1215 | actual_type_ret, actual_format_ret, actual_size_ret, | |
1216 | delete_p) | |
1217 | Display *display; | |
1218 | Window window; | |
1219 | Atom property; | |
1220 | unsigned char **data_ret; | |
1221 | int *bytes_ret; | |
1222 | Atom *actual_type_ret; | |
1223 | int *actual_format_ret; | |
1224 | unsigned long *actual_size_ret; | |
1225 | int delete_p; | |
1226 | { | |
1227 | int total_size; | |
1228 | unsigned long bytes_remaining; | |
1229 | int offset = 0; | |
1230 | unsigned char *tmp_data = 0; | |
1231 | int result; | |
1232 | int buffer_size = SELECTION_QUANTUM (display); | |
1233 | if (buffer_size > MAX_SELECTION_QUANTUM) buffer_size = MAX_SELECTION_QUANTUM; | |
1234 | ||
1235 | BLOCK_INPUT; | |
1236 | /* First probe the thing to find out how big it is. */ | |
1237 | result = XGetWindowProperty (display, window, property, | |
137edb72 | 1238 | 0L, 0L, False, AnyPropertyType, |
ede4db72 RS |
1239 | actual_type_ret, actual_format_ret, |
1240 | actual_size_ret, | |
1241 | &bytes_remaining, &tmp_data); | |
ede4db72 RS |
1242 | if (result != Success) |
1243 | { | |
2f65feb6 | 1244 | UNBLOCK_INPUT; |
ede4db72 RS |
1245 | *data_ret = 0; |
1246 | *bytes_ret = 0; | |
1247 | return; | |
1248 | } | |
0158abbc RS |
1249 | /* This was allocated by Xlib, so use XFree. */ |
1250 | XFree ((char *) tmp_data); | |
ede4db72 RS |
1251 | |
1252 | if (*actual_type_ret == None || *actual_format_ret == 0) | |
1253 | { | |
2f65feb6 | 1254 | UNBLOCK_INPUT; |
ede4db72 RS |
1255 | return; |
1256 | } | |
1257 | ||
1258 | total_size = bytes_remaining + 1; | |
1259 | *data_ret = (unsigned char *) xmalloc (total_size); | |
1260 | ||
2a1a4c9d | 1261 | /* Now read, until we've gotten it all. */ |
ede4db72 RS |
1262 | while (bytes_remaining) |
1263 | { | |
1264 | #if 0 | |
1265 | int last = bytes_remaining; | |
1266 | #endif | |
1267 | result | |
1268 | = XGetWindowProperty (display, window, property, | |
137edb72 | 1269 | (long)offset/4, (long)buffer_size/4, |
2f65feb6 | 1270 | False, |
ede4db72 RS |
1271 | AnyPropertyType, |
1272 | actual_type_ret, actual_format_ret, | |
1273 | actual_size_ret, &bytes_remaining, &tmp_data); | |
1274 | #if 0 | |
1275 | fprintf (stderr, "<< read %d\n", last-bytes_remaining); | |
1276 | #endif | |
1277 | /* If this doesn't return Success at this point, it means that | |
1278 | some clod deleted the selection while we were in the midst of | |
1279 | reading it. Deal with that, I guess.... | |
1280 | */ | |
1281 | if (result != Success) break; | |
1282 | *actual_size_ret *= *actual_format_ret / 8; | |
1283 | bcopy (tmp_data, (*data_ret) + offset, *actual_size_ret); | |
1284 | offset += *actual_size_ret; | |
0158abbc RS |
1285 | /* This was allocated by Xlib, so use XFree. */ |
1286 | XFree ((char *) tmp_data); | |
ede4db72 | 1287 | } |
2f65feb6 | 1288 | |
5c3a351a | 1289 | XFlush (display); |
ede4db72 RS |
1290 | UNBLOCK_INPUT; |
1291 | *bytes_ret = offset; | |
1292 | } | |
1293 | \f | |
4feb31b2 | 1294 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1295 | |
ede4db72 RS |
1296 | static void |
1297 | receive_incremental_selection (display, window, property, target_type, | |
1298 | min_size_bytes, data_ret, size_bytes_ret, | |
1299 | type_ret, format_ret, size_ret) | |
1300 | Display *display; | |
1301 | Window window; | |
1302 | Atom property; | |
1303 | Lisp_Object target_type; /* for error messages only */ | |
1304 | unsigned int min_size_bytes; | |
1305 | unsigned char **data_ret; | |
1306 | int *size_bytes_ret; | |
1307 | Atom *type_ret; | |
1308 | unsigned long *size_ret; | |
1309 | int *format_ret; | |
1310 | { | |
1311 | int offset = 0; | |
d1f21a66 | 1312 | struct prop_location *wait_object; |
ede4db72 RS |
1313 | *size_bytes_ret = min_size_bytes; |
1314 | *data_ret = (unsigned char *) xmalloc (*size_bytes_ret); | |
1315 | #if 0 | |
1316 | fprintf (stderr, "\nread INCR %d\n", min_size_bytes); | |
1317 | #endif | |
2f65feb6 RS |
1318 | |
1319 | /* At this point, we have read an INCR property. | |
1320 | Delete the property to ack it. | |
1321 | (But first, prepare to receive the next event in this handshake.) | |
ede4db72 RS |
1322 | |
1323 | Now, we must loop, waiting for the sending window to put a value on | |
1324 | that property, then reading the property, then deleting it to ack. | |
1325 | We are done when the sender places a property of length 0. | |
1326 | */ | |
2f65feb6 RS |
1327 | BLOCK_INPUT; |
1328 | XSelectInput (display, window, STANDARD_EVENT_SET | PropertyChangeMask); | |
1329 | XDeleteProperty (display, window, property); | |
d1f21a66 RS |
1330 | wait_object = expect_property_change (display, window, property, |
1331 | PropertyNewValue); | |
5c3a351a | 1332 | XFlush (display); |
2f65feb6 RS |
1333 | UNBLOCK_INPUT; |
1334 | ||
ede4db72 RS |
1335 | while (1) |
1336 | { | |
1337 | unsigned char *tmp_data; | |
1338 | int tmp_size_bytes; | |
d1f21a66 | 1339 | wait_for_property_change (wait_object); |
ede4db72 | 1340 | /* expect it again immediately, because x_get_window_property may |
2a1a4c9d | 1341 | .. no it won't, I don't get it. |
ede4db72 RS |
1342 | .. Ok, I get it now, the Xt code that implements INCR is broken. |
1343 | */ | |
ede4db72 RS |
1344 | x_get_window_property (display, window, property, |
1345 | &tmp_data, &tmp_size_bytes, | |
1346 | type_ret, format_ret, size_ret, 1); | |
1347 | ||
1348 | if (tmp_size_bytes == 0) /* we're done */ | |
1349 | { | |
1350 | #if 0 | |
1351 | fprintf (stderr, " read INCR done\n"); | |
1352 | #endif | |
2f65feb6 RS |
1353 | if (! waiting_for_other_props_on_window (display, window)) |
1354 | XSelectInput (display, window, STANDARD_EVENT_SET); | |
d1f21a66 | 1355 | unexpect_property_change (wait_object); |
4feb31b2 | 1356 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1357 | calls xmalloc itself. */ |
4feb31b2 | 1358 | if (tmp_data) xfree (tmp_data); |
ede4db72 RS |
1359 | break; |
1360 | } | |
2f65feb6 RS |
1361 | |
1362 | BLOCK_INPUT; | |
1363 | XDeleteProperty (display, window, property); | |
d1f21a66 RS |
1364 | wait_object = expect_property_change (display, window, property, |
1365 | PropertyNewValue); | |
5c3a351a | 1366 | XFlush (display); |
2f65feb6 RS |
1367 | UNBLOCK_INPUT; |
1368 | ||
ede4db72 RS |
1369 | #if 0 |
1370 | fprintf (stderr, " read INCR %d\n", tmp_size_bytes); | |
1371 | #endif | |
1372 | if (*size_bytes_ret < offset + tmp_size_bytes) | |
1373 | { | |
1374 | #if 0 | |
1375 | fprintf (stderr, " read INCR realloc %d -> %d\n", | |
1376 | *size_bytes_ret, offset + tmp_size_bytes); | |
1377 | #endif | |
1378 | *size_bytes_ret = offset + tmp_size_bytes; | |
1379 | *data_ret = (unsigned char *) xrealloc (*data_ret, *size_bytes_ret); | |
1380 | } | |
018cfa07 | 1381 | bcopy (tmp_data, (*data_ret) + offset, tmp_size_bytes); |
ede4db72 | 1382 | offset += tmp_size_bytes; |
4feb31b2 | 1383 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1384 | calls xmalloc itself. */ |
4feb31b2 | 1385 | xfree (tmp_data); |
ede4db72 RS |
1386 | } |
1387 | } | |
1388 | \f | |
1389 | /* Once a requested selection is "ready" (we got a SelectionNotify event), | |
1390 | fetch value from property PROPERTY of X window WINDOW on display DISPLAY. | |
1391 | TARGET_TYPE and SELECTION_ATOM are used in error message if this fails. */ | |
1392 | ||
1393 | static Lisp_Object | |
1394 | x_get_window_property_as_lisp_data (display, window, property, target_type, | |
1395 | selection_atom) | |
1396 | Display *display; | |
1397 | Window window; | |
1398 | Atom property; | |
1399 | Lisp_Object target_type; /* for error messages only */ | |
1400 | Atom selection_atom; /* for error messages only */ | |
1401 | { | |
1402 | Atom actual_type; | |
1403 | int actual_format; | |
1404 | unsigned long actual_size; | |
1405 | unsigned char *data = 0; | |
1406 | int bytes = 0; | |
1407 | Lisp_Object val; | |
5c3a351a | 1408 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 RS |
1409 | |
1410 | x_get_window_property (display, window, property, &data, &bytes, | |
1411 | &actual_type, &actual_format, &actual_size, 1); | |
1412 | if (! data) | |
1413 | { | |
1414 | int there_is_a_selection_owner; | |
1415 | BLOCK_INPUT; | |
1416 | there_is_a_selection_owner | |
1417 | = XGetSelectionOwner (display, selection_atom); | |
1418 | UNBLOCK_INPUT; | |
5a499696 RS |
1419 | Fsignal (Qerror, |
1420 | there_is_a_selection_owner | |
1421 | ? Fcons (build_string ("selection owner couldn't convert"), | |
ede4db72 RS |
1422 | actual_type |
1423 | ? Fcons (target_type, | |
5c3a351a RS |
1424 | Fcons (x_atom_to_symbol (dpyinfo, display, |
1425 | actual_type), | |
ede4db72 RS |
1426 | Qnil)) |
1427 | : Fcons (target_type, Qnil)) | |
5a499696 RS |
1428 | : Fcons (build_string ("no selection"), |
1429 | Fcons (x_atom_to_symbol (dpyinfo, display, | |
1430 | selection_atom), | |
1431 | Qnil))); | |
ede4db72 RS |
1432 | } |
1433 | ||
5c3a351a | 1434 | if (actual_type == dpyinfo->Xatom_INCR) |
ede4db72 RS |
1435 | { |
1436 | /* That wasn't really the data, just the beginning. */ | |
1437 | ||
1438 | unsigned int min_size_bytes = * ((unsigned int *) data); | |
1439 | BLOCK_INPUT; | |
4feb31b2 | 1440 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1441 | calls xmalloc itself. */ |
4feb31b2 | 1442 | xfree ((char *) data); |
ede4db72 RS |
1443 | UNBLOCK_INPUT; |
1444 | receive_incremental_selection (display, window, property, target_type, | |
1445 | min_size_bytes, &data, &bytes, | |
1446 | &actual_type, &actual_format, | |
1447 | &actual_size); | |
1448 | } | |
1449 | ||
2f65feb6 RS |
1450 | BLOCK_INPUT; |
1451 | XDeleteProperty (display, window, property); | |
5c3a351a | 1452 | XFlush (display); |
2f65feb6 RS |
1453 | UNBLOCK_INPUT; |
1454 | ||
ede4db72 RS |
1455 | /* It's been read. Now convert it to a lisp object in some semi-rational |
1456 | manner. */ | |
1457 | val = selection_data_to_lisp_data (display, data, bytes, | |
1458 | actual_type, actual_format); | |
1459 | ||
4feb31b2 | 1460 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1461 | calls xmalloc itself. */ |
4feb31b2 | 1462 | xfree ((char *) data); |
ede4db72 RS |
1463 | return val; |
1464 | } | |
1465 | \f | |
1466 | /* These functions convert from the selection data read from the server into | |
1467 | something that we can use from Lisp, and vice versa. | |
1468 | ||
1469 | Type: Format: Size: Lisp Type: | |
1470 | ----- ------- ----- ----------- | |
1471 | * 8 * String | |
1472 | ATOM 32 1 Symbol | |
1473 | ATOM 32 > 1 Vector of Symbols | |
1474 | * 16 1 Integer | |
1475 | * 16 > 1 Vector of Integers | |
1476 | * 32 1 if <=16 bits: Integer | |
1477 | if > 16 bits: Cons of top16, bot16 | |
1478 | * 32 > 1 Vector of the above | |
1479 | ||
1480 | When converting a Lisp number to C, it is assumed to be of format 16 if | |
1481 | it is an integer, and of format 32 if it is a cons of two integers. | |
1482 | ||
1483 | When converting a vector of numbers from Lisp to C, it is assumed to be | |
1484 | of format 16 if every element in the vector is an integer, and is assumed | |
1485 | to be of format 32 if any element is a cons of two integers. | |
1486 | ||
1487 | When converting an object to C, it may be of the form (SYMBOL . <data>) | |
1488 | where SYMBOL is what we should claim that the type is. Format and | |
1489 | representation are as above. */ | |
1490 | ||
1491 | ||
1492 | ||
1493 | static Lisp_Object | |
1494 | selection_data_to_lisp_data (display, data, size, type, format) | |
1495 | Display *display; | |
1496 | unsigned char *data; | |
1497 | Atom type; | |
1498 | int size, format; | |
1499 | { | |
5c3a351a | 1500 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 | 1501 | |
5c3a351a | 1502 | if (type == dpyinfo->Xatom_NULL) |
ede4db72 RS |
1503 | return QNULL; |
1504 | ||
1505 | /* Convert any 8-bit data to a string, for compactness. */ | |
1506 | else if (format == 8) | |
e6c7c988 KH |
1507 | { |
1508 | Lisp_Object str; | |
f78da51e KH |
1509 | int require_encoding = 0; |
1510 | ||
d24e26b1 RS |
1511 | if ( |
1512 | #if 1 | |
1513 | 1 | |
1514 | #else | |
1515 | ! NILP (buffer_defaults.enable_multibyte_characters) | |
1516 | #endif | |
1517 | ) | |
f78da51e | 1518 | { |
5faa9b45 KH |
1519 | /* If TYPE is `TEXT' or `COMPOUND_TEXT', we should decode |
1520 | DATA to Emacs internal format because DATA may be encoded | |
1521 | in compound text format. In addtion, if TYPE is `STRING' | |
1522 | and DATA contains any 8-bit Latin-1 code, we should also | |
1523 | decode it. */ | |
1524 | if (type == dpyinfo->Xatom_TEXT | |
1525 | || type == dpyinfo->Xatom_COMPOUND_TEXT) | |
1526 | require_encoding = 1; | |
1527 | else if (type == XA_STRING) | |
f78da51e | 1528 | { |
5faa9b45 KH |
1529 | int i; |
1530 | for (i = 0; i < size; i++) | |
f78da51e | 1531 | { |
5faa9b45 KH |
1532 | if (data[i] >= 0x80) |
1533 | { | |
1534 | require_encoding = 1; | |
1535 | break; | |
1536 | } | |
f78da51e KH |
1537 | } |
1538 | } | |
1539 | } | |
1540 | if (!require_encoding) | |
061bda8d KH |
1541 | { |
1542 | str = make_unibyte_string ((char *) data, size); | |
1543 | Vlast_coding_system_used = Qraw_text; | |
1544 | } | |
e6c7c988 KH |
1545 | else |
1546 | { | |
9391d06a | 1547 | int bufsize; |
e6c7c988 KH |
1548 | unsigned char *buf; |
1549 | struct coding_system coding; | |
e6c7c988 | 1550 | |
16cd5029 KH |
1551 | if (NILP (Vnext_selection_coding_system)) |
1552 | Vnext_selection_coding_system = Vselection_coding_system; | |
2584c9ec | 1553 | setup_coding_system |
16cd5029 | 1554 | (Fcheck_coding_system(Vnext_selection_coding_system), &coding); |
9846d9db KH |
1555 | coding.src_multibyte = 0; |
1556 | coding.dst_multibyte = 1; | |
16cd5029 | 1557 | Vnext_selection_coding_system = Qnil; |
9391d06a | 1558 | coding.mode |= CODING_MODE_LAST_BLOCK; |
e6c7c988 KH |
1559 | bufsize = decoding_buffer_size (&coding, size); |
1560 | buf = (unsigned char *) xmalloc (bufsize); | |
9391d06a | 1561 | decode_coding (&coding, data, buf, size, bufsize); |
9846d9db KH |
1562 | str = make_string_from_bytes ((char *) buf, |
1563 | coding.produced_char, coding.produced); | |
4feb31b2 | 1564 | xfree (buf); |
061bda8d | 1565 | Vlast_coding_system_used = coding.symbol; |
e6c7c988 | 1566 | } |
0caef0ec | 1567 | compose_chars_in_text (0, XSTRING (str)->size, str); |
e6c7c988 KH |
1568 | return str; |
1569 | } | |
ede4db72 RS |
1570 | /* Convert a single atom to a Lisp_Symbol. Convert a set of atoms to |
1571 | a vector of symbols. | |
1572 | */ | |
1573 | else if (type == XA_ATOM) | |
1574 | { | |
1575 | int i; | |
1576 | if (size == sizeof (Atom)) | |
5c3a351a | 1577 | return x_atom_to_symbol (dpyinfo, display, *((Atom *) data)); |
ede4db72 RS |
1578 | else |
1579 | { | |
e607a484 RS |
1580 | Lisp_Object v = Fmake_vector (make_number (size / sizeof (Atom)), |
1581 | make_number (0)); | |
ede4db72 | 1582 | for (i = 0; i < size / sizeof (Atom); i++) |
e607a484 RS |
1583 | Faset (v, make_number (i), |
1584 | x_atom_to_symbol (dpyinfo, display, ((Atom *) data) [i])); | |
ede4db72 RS |
1585 | return v; |
1586 | } | |
1587 | } | |
1588 | ||
1589 | /* Convert a single 16 or small 32 bit number to a Lisp_Int. | |
1590 | If the number is > 16 bits, convert it to a cons of integers, | |
1591 | 16 bits in each half. | |
1592 | */ | |
1593 | else if (format == 32 && size == sizeof (long)) | |
1594 | return long_to_cons (((unsigned long *) data) [0]); | |
1595 | else if (format == 16 && size == sizeof (short)) | |
1596 | return make_number ((int) (((unsigned short *) data) [0])); | |
1597 | ||
1598 | /* Convert any other kind of data to a vector of numbers, represented | |
1599 | as above (as an integer, or a cons of two 16 bit integers.) | |
1600 | */ | |
1601 | else if (format == 16) | |
1602 | { | |
1603 | int i; | |
937a3875 RS |
1604 | Lisp_Object v; |
1605 | v = Fmake_vector (make_number (size / 2), make_number (0)); | |
1606 | for (i = 0; i < size / 2; i++) | |
ede4db72 RS |
1607 | { |
1608 | int j = (int) ((unsigned short *) data) [i]; | |
e607a484 | 1609 | Faset (v, make_number (i), make_number (j)); |
ede4db72 RS |
1610 | } |
1611 | return v; | |
1612 | } | |
1613 | else | |
1614 | { | |
1615 | int i; | |
e607a484 | 1616 | Lisp_Object v = Fmake_vector (make_number (size / 4), make_number (0)); |
ede4db72 RS |
1617 | for (i = 0; i < size / 4; i++) |
1618 | { | |
1619 | unsigned long j = ((unsigned long *) data) [i]; | |
e607a484 | 1620 | Faset (v, make_number (i), long_to_cons (j)); |
ede4db72 RS |
1621 | } |
1622 | return v; | |
1623 | } | |
1624 | } | |
1625 | ||
1626 | ||
4feb31b2 | 1627 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1628 | |
ede4db72 RS |
1629 | static void |
1630 | lisp_data_to_selection_data (display, obj, | |
aca39f42 RS |
1631 | data_ret, type_ret, size_ret, |
1632 | format_ret, nofree_ret) | |
ede4db72 RS |
1633 | Display *display; |
1634 | Lisp_Object obj; | |
1635 | unsigned char **data_ret; | |
1636 | Atom *type_ret; | |
1637 | unsigned int *size_ret; | |
1638 | int *format_ret; | |
aca39f42 | 1639 | int *nofree_ret; |
ede4db72 RS |
1640 | { |
1641 | Lisp_Object type = Qnil; | |
5c3a351a | 1642 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
aca39f42 RS |
1643 | |
1644 | *nofree_ret = 0; | |
1645 | ||
8e713be6 | 1646 | if (CONSP (obj) && SYMBOLP (XCAR (obj))) |
ede4db72 | 1647 | { |
8e713be6 KR |
1648 | type = XCAR (obj); |
1649 | obj = XCDR (obj); | |
1650 | if (CONSP (obj) && NILP (XCDR (obj))) | |
1651 | obj = XCAR (obj); | |
ede4db72 RS |
1652 | } |
1653 | ||
1654 | if (EQ (obj, QNULL) || (EQ (type, QNULL))) | |
1655 | { /* This is not the same as declining */ | |
1656 | *format_ret = 32; | |
1657 | *size_ret = 0; | |
1658 | *data_ret = 0; | |
1659 | type = QNULL; | |
1660 | } | |
1661 | else if (STRINGP (obj)) | |
1662 | { | |
e6c7c988 KH |
1663 | /* Since we are now handling multilingual text, we must consider |
1664 | sending back compound text. */ | |
11270583 | 1665 | int stringp; |
9846d9db | 1666 | |
2b38b37e KH |
1667 | if (NILP (Vnext_selection_coding_system)) |
1668 | Vnext_selection_coding_system = Vselection_coding_system; | |
e6c7c988 | 1669 | |
2b38b37e KH |
1670 | *format_ret = 8; |
1671 | *data_ret = x_encode_text (obj, Vnext_selection_coding_system, | |
11270583 | 1672 | (int *) size_ret, &stringp); |
2b38b37e KH |
1673 | *nofree_ret = (*data_ret == XSTRING (obj)->data); |
1674 | if (NILP (type)) | |
11270583 | 1675 | type = (stringp ? QSTRING : QCOMPOUND_TEXT); |
2b38b37e KH |
1676 | Vlast_coding_system_used = (*nofree_ret |
1677 | ? Qraw_text | |
1678 | : Vnext_selection_coding_system); | |
1679 | Vnext_selection_coding_system = Qnil; | |
ede4db72 RS |
1680 | } |
1681 | else if (SYMBOLP (obj)) | |
1682 | { | |
1683 | *format_ret = 32; | |
1684 | *size_ret = 1; | |
1685 | *data_ret = (unsigned char *) xmalloc (sizeof (Atom) + 1); | |
1686 | (*data_ret) [sizeof (Atom)] = 0; | |
5c3a351a | 1687 | (*(Atom **) data_ret) [0] = symbol_to_x_atom (dpyinfo, display, obj); |
ede4db72 RS |
1688 | if (NILP (type)) type = QATOM; |
1689 | } | |
7da64e5c | 1690 | else if (INTEGERP (obj) |
ede4db72 RS |
1691 | && XINT (obj) < 0xFFFF |
1692 | && XINT (obj) > -0xFFFF) | |
1693 | { | |
1694 | *format_ret = 16; | |
1695 | *size_ret = 1; | |
1696 | *data_ret = (unsigned char *) xmalloc (sizeof (short) + 1); | |
1697 | (*data_ret) [sizeof (short)] = 0; | |
1698 | (*(short **) data_ret) [0] = (short) XINT (obj); | |
1699 | if (NILP (type)) type = QINTEGER; | |
1700 | } | |
a87ed99c | 1701 | else if (INTEGERP (obj) |
8e713be6 KR |
1702 | || (CONSP (obj) && INTEGERP (XCAR (obj)) |
1703 | && (INTEGERP (XCDR (obj)) | |
1704 | || (CONSP (XCDR (obj)) | |
1705 | && INTEGERP (XCAR (XCDR (obj))))))) | |
ede4db72 RS |
1706 | { |
1707 | *format_ret = 32; | |
1708 | *size_ret = 1; | |
1709 | *data_ret = (unsigned char *) xmalloc (sizeof (long) + 1); | |
1710 | (*data_ret) [sizeof (long)] = 0; | |
1711 | (*(unsigned long **) data_ret) [0] = cons_to_long (obj); | |
1712 | if (NILP (type)) type = QINTEGER; | |
1713 | } | |
1714 | else if (VECTORP (obj)) | |
1715 | { | |
1716 | /* Lisp_Vectors may represent a set of ATOMs; | |
1717 | a set of 16 or 32 bit INTEGERs; | |
1718 | or a set of ATOM_PAIRs (represented as [[A1 A2] [A3 A4] ...] | |
1719 | */ | |
1720 | int i; | |
1721 | ||
1722 | if (SYMBOLP (XVECTOR (obj)->contents [0])) | |
1723 | /* This vector is an ATOM set */ | |
1724 | { | |
1725 | if (NILP (type)) type = QATOM; | |
1726 | *size_ret = XVECTOR (obj)->size; | |
1727 | *format_ret = 32; | |
1728 | *data_ret = (unsigned char *) xmalloc ((*size_ret) * sizeof (Atom)); | |
1729 | for (i = 0; i < *size_ret; i++) | |
1730 | if (SYMBOLP (XVECTOR (obj)->contents [i])) | |
1731 | (*(Atom **) data_ret) [i] | |
5c3a351a | 1732 | = symbol_to_x_atom (dpyinfo, display, XVECTOR (obj)->contents [i]); |
ede4db72 RS |
1733 | else |
1734 | Fsignal (Qerror, /* Qselection_error */ | |
1735 | Fcons (build_string | |
1736 | ("all elements of selection vector must have same type"), | |
1737 | Fcons (obj, Qnil))); | |
1738 | } | |
1739 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1740 | else if (VECTORP (XVECTOR (obj)->contents [0])) | |
1741 | /* This vector is an ATOM_PAIR set */ | |
1742 | { | |
1743 | if (NILP (type)) type = QATOM_PAIR; | |
1744 | *size_ret = XVECTOR (obj)->size; | |
1745 | *format_ret = 32; | |
1746 | *data_ret = (unsigned char *) | |
1747 | xmalloc ((*size_ret) * sizeof (Atom) * 2); | |
1748 | for (i = 0; i < *size_ret; i++) | |
1749 | if (VECTORP (XVECTOR (obj)->contents [i])) | |
1750 | { | |
1751 | Lisp_Object pair = XVECTOR (obj)->contents [i]; | |
1752 | if (XVECTOR (pair)->size != 2) | |
1753 | Fsignal (Qerror, | |
1754 | Fcons (build_string | |
1755 | ("elements of the vector must be vectors of exactly two elements"), | |
1756 | Fcons (pair, Qnil))); | |
1757 | ||
1758 | (*(Atom **) data_ret) [i * 2] | |
5c3a351a RS |
1759 | = symbol_to_x_atom (dpyinfo, display, |
1760 | XVECTOR (pair)->contents [0]); | |
ede4db72 | 1761 | (*(Atom **) data_ret) [(i * 2) + 1] |
5c3a351a RS |
1762 | = symbol_to_x_atom (dpyinfo, display, |
1763 | XVECTOR (pair)->contents [1]); | |
ede4db72 RS |
1764 | } |
1765 | else | |
1766 | Fsignal (Qerror, | |
1767 | Fcons (build_string | |
1768 | ("all elements of the vector must be of the same type"), | |
1769 | Fcons (obj, Qnil))); | |
1770 | ||
1771 | } | |
1772 | #endif | |
1773 | else | |
1774 | /* This vector is an INTEGER set, or something like it */ | |
1775 | { | |
1776 | *size_ret = XVECTOR (obj)->size; | |
1777 | if (NILP (type)) type = QINTEGER; | |
1778 | *format_ret = 16; | |
1779 | for (i = 0; i < *size_ret; i++) | |
1780 | if (CONSP (XVECTOR (obj)->contents [i])) | |
1781 | *format_ret = 32; | |
7da64e5c | 1782 | else if (!INTEGERP (XVECTOR (obj)->contents [i])) |
ede4db72 RS |
1783 | Fsignal (Qerror, /* Qselection_error */ |
1784 | Fcons (build_string | |
1785 | ("elements of selection vector must be integers or conses of integers"), | |
1786 | Fcons (obj, Qnil))); | |
1787 | ||
1788 | *data_ret = (unsigned char *) xmalloc (*size_ret * (*format_ret/8)); | |
1789 | for (i = 0; i < *size_ret; i++) | |
1790 | if (*format_ret == 32) | |
1791 | (*((unsigned long **) data_ret)) [i] | |
1792 | = cons_to_long (XVECTOR (obj)->contents [i]); | |
1793 | else | |
1794 | (*((unsigned short **) data_ret)) [i] | |
1795 | = (unsigned short) cons_to_long (XVECTOR (obj)->contents [i]); | |
1796 | } | |
1797 | } | |
1798 | else | |
1799 | Fsignal (Qerror, /* Qselection_error */ | |
1800 | Fcons (build_string ("unrecognised selection data"), | |
1801 | Fcons (obj, Qnil))); | |
1802 | ||
5c3a351a | 1803 | *type_ret = symbol_to_x_atom (dpyinfo, display, type); |
ede4db72 RS |
1804 | } |
1805 | ||
1806 | static Lisp_Object | |
1807 | clean_local_selection_data (obj) | |
1808 | Lisp_Object obj; | |
1809 | { | |
1810 | if (CONSP (obj) | |
8e713be6 KR |
1811 | && INTEGERP (XCAR (obj)) |
1812 | && CONSP (XCDR (obj)) | |
1813 | && INTEGERP (XCAR (XCDR (obj))) | |
1814 | && NILP (XCDR (XCDR (obj)))) | |
1815 | obj = Fcons (XCAR (obj), XCDR (obj)); | |
ede4db72 RS |
1816 | |
1817 | if (CONSP (obj) | |
8e713be6 KR |
1818 | && INTEGERP (XCAR (obj)) |
1819 | && INTEGERP (XCDR (obj))) | |
ede4db72 | 1820 | { |
8e713be6 KR |
1821 | if (XINT (XCAR (obj)) == 0) |
1822 | return XCDR (obj); | |
1823 | if (XINT (XCAR (obj)) == -1) | |
1824 | return make_number (- XINT (XCDR (obj))); | |
ede4db72 RS |
1825 | } |
1826 | if (VECTORP (obj)) | |
1827 | { | |
1828 | int i; | |
1829 | int size = XVECTOR (obj)->size; | |
1830 | Lisp_Object copy; | |
1831 | if (size == 1) | |
1832 | return clean_local_selection_data (XVECTOR (obj)->contents [0]); | |
e607a484 | 1833 | copy = Fmake_vector (make_number (size), Qnil); |
ede4db72 RS |
1834 | for (i = 0; i < size; i++) |
1835 | XVECTOR (copy)->contents [i] | |
1836 | = clean_local_selection_data (XVECTOR (obj)->contents [i]); | |
1837 | return copy; | |
1838 | } | |
1839 | return obj; | |
1840 | } | |
1841 | \f | |
1842 | /* Called from XTread_socket to handle SelectionNotify events. | |
606140dd KH |
1843 | If it's the selection we are waiting for, stop waiting |
1844 | by setting the car of reading_selection_reply to non-nil. | |
1845 | We store t there if the reply is successful, lambda if not. */ | |
ede4db72 RS |
1846 | |
1847 | void | |
1848 | x_handle_selection_notify (event) | |
1849 | XSelectionEvent *event; | |
1850 | { | |
5d0ba25b | 1851 | if (event->requestor != reading_selection_window) |
ede4db72 RS |
1852 | return; |
1853 | if (event->selection != reading_which_selection) | |
1854 | return; | |
1855 | ||
8e713be6 | 1856 | XCAR (reading_selection_reply) |
606140dd | 1857 | = (event->property != 0 ? Qt : Qlambda); |
ede4db72 RS |
1858 | } |
1859 | ||
1860 | \f | |
a0d76c27 EN |
1861 | DEFUN ("x-own-selection-internal", Fx_own_selection_internal, |
1862 | Sx_own_selection_internal, 2, 2, 0, | |
ede4db72 RS |
1863 | "Assert an X selection of the given TYPE with the given VALUE.\n\ |
1864 | TYPE is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'.\n\ | |
1865 | \(Those are literal upper-case symbol names, since that's what X expects.)\n\ | |
1866 | VALUE is typically a string, or a cons of two markers, but may be\n\ | |
a87ed99c | 1867 | anything that the functions on `selection-converter-alist' know about.") |
ede4db72 RS |
1868 | (selection_name, selection_value) |
1869 | Lisp_Object selection_name, selection_value; | |
1870 | { | |
703e0710 | 1871 | check_x (); |
ede4db72 | 1872 | CHECK_SYMBOL (selection_name, 0); |
606140dd | 1873 | if (NILP (selection_value)) error ("selection-value may not be nil"); |
ede4db72 RS |
1874 | x_own_selection (selection_name, selection_value); |
1875 | return selection_value; | |
1876 | } | |
1877 | ||
1878 | ||
1879 | /* Request the selection value from the owner. If we are the owner, | |
1880 | simply return our selection value. If we are not the owner, this | |
1881 | will block until all of the data has arrived. */ | |
1882 | ||
a0d76c27 EN |
1883 | DEFUN ("x-get-selection-internal", Fx_get_selection_internal, |
1884 | Sx_get_selection_internal, 2, 2, 0, | |
ede4db72 RS |
1885 | "Return text selected from some X window.\n\ |
1886 | SELECTION is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'.\n\ | |
1887 | \(Those are literal upper-case symbol names, since that's what X expects.)\n\ | |
a87ed99c | 1888 | TYPE is the type of data desired, typically `STRING'.") |
ede4db72 RS |
1889 | (selection_symbol, target_type) |
1890 | Lisp_Object selection_symbol, target_type; | |
1891 | { | |
1892 | Lisp_Object val = Qnil; | |
1893 | struct gcpro gcpro1, gcpro2; | |
1894 | GCPRO2 (target_type, val); /* we store newly consed data into these */ | |
703e0710 | 1895 | check_x (); |
ede4db72 RS |
1896 | CHECK_SYMBOL (selection_symbol, 0); |
1897 | ||
1898 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1899 | if (CONSP (target_type) | |
8e713be6 | 1900 | && XCAR (target_type) == QMULTIPLE) |
ede4db72 | 1901 | { |
8e713be6 | 1902 | CHECK_VECTOR (XCDR (target_type), 0); |
ede4db72 RS |
1903 | /* So we don't destructively modify this... */ |
1904 | target_type = copy_multiple_data (target_type); | |
1905 | } | |
1906 | else | |
1907 | #endif | |
1908 | CHECK_SYMBOL (target_type, 0); | |
1909 | ||
1910 | val = x_get_local_selection (selection_symbol, target_type); | |
1911 | ||
1912 | if (NILP (val)) | |
1913 | { | |
1914 | val = x_get_foreign_selection (selection_symbol, target_type); | |
1915 | goto DONE; | |
1916 | } | |
1917 | ||
1918 | if (CONSP (val) | |
8e713be6 | 1919 | && SYMBOLP (XCAR (val))) |
ede4db72 | 1920 | { |
8e713be6 KR |
1921 | val = XCDR (val); |
1922 | if (CONSP (val) && NILP (XCDR (val))) | |
1923 | val = XCAR (val); | |
ede4db72 RS |
1924 | } |
1925 | val = clean_local_selection_data (val); | |
1926 | DONE: | |
1927 | UNGCPRO; | |
1928 | return val; | |
1929 | } | |
1930 | ||
a0d76c27 EN |
1931 | DEFUN ("x-disown-selection-internal", Fx_disown_selection_internal, |
1932 | Sx_disown_selection_internal, 1, 2, 0, | |
a87ed99c RS |
1933 | "If we own the selection SELECTION, disown it.\n\ |
1934 | Disowning it means there is no such selection.") | |
ede4db72 RS |
1935 | (selection, time) |
1936 | Lisp_Object selection; | |
1937 | Lisp_Object time; | |
1938 | { | |
ede4db72 RS |
1939 | Time timestamp; |
1940 | Atom selection_atom; | |
44d46531 | 1941 | struct selection_input_event event; |
3834c318 | 1942 | Display *display; |
5c3a351a | 1943 | struct x_display_info *dpyinfo; |
378c33ca | 1944 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 1945 | |
703e0710 | 1946 | check_x (); |
378c33ca GM |
1947 | display = FRAME_X_DISPLAY (sf); |
1948 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
ede4db72 RS |
1949 | CHECK_SYMBOL (selection, 0); |
1950 | if (NILP (time)) | |
7da64e5c | 1951 | timestamp = last_event_timestamp; |
ede4db72 RS |
1952 | else |
1953 | timestamp = cons_to_long (time); | |
1954 | ||
1955 | if (NILP (assq_no_quit (selection, Vselection_alist))) | |
1956 | return Qnil; /* Don't disown the selection when we're not the owner. */ | |
1957 | ||
5c3a351a | 1958 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection); |
ede4db72 RS |
1959 | |
1960 | BLOCK_INPUT; | |
1961 | XSetSelectionOwner (display, selection_atom, None, timestamp); | |
1962 | UNBLOCK_INPUT; | |
1963 | ||
eb8c3be9 | 1964 | /* It doesn't seem to be guaranteed that a SelectionClear event will be |
ede4db72 RS |
1965 | generated for a window which owns the selection when that window sets |
1966 | the selection owner to None. The NCD server does, the MIT Sun4 server | |
1967 | doesn't. So we synthesize one; this means we might get two, but | |
1968 | that's ok, because the second one won't have any effect. */ | |
8d47f8c4 RS |
1969 | SELECTION_EVENT_DISPLAY (&event) = display; |
1970 | SELECTION_EVENT_SELECTION (&event) = selection_atom; | |
1971 | SELECTION_EVENT_TIME (&event) = timestamp; | |
44d46531 | 1972 | x_handle_selection_clear ((struct input_event *) &event); |
ede4db72 RS |
1973 | |
1974 | return Qt; | |
1975 | } | |
1976 | ||
a87ed99c RS |
1977 | /* Get rid of all the selections in buffer BUFFER. |
1978 | This is used when we kill a buffer. */ | |
1979 | ||
1980 | void | |
1981 | x_disown_buffer_selections (buffer) | |
1982 | Lisp_Object buffer; | |
1983 | { | |
1984 | Lisp_Object tail; | |
1985 | struct buffer *buf = XBUFFER (buffer); | |
1986 | ||
8e713be6 | 1987 | for (tail = Vselection_alist; CONSP (tail); tail = XCDR (tail)) |
a87ed99c RS |
1988 | { |
1989 | Lisp_Object elt, value; | |
8e713be6 KR |
1990 | elt = XCAR (tail); |
1991 | value = XCDR (elt); | |
1992 | if (CONSP (value) && MARKERP (XCAR (value)) | |
1993 | && XMARKER (XCAR (value))->buffer == buf) | |
1994 | Fx_disown_selection_internal (XCAR (elt), Qnil); | |
a87ed99c RS |
1995 | } |
1996 | } | |
ede4db72 RS |
1997 | |
1998 | DEFUN ("x-selection-owner-p", Fx_selection_owner_p, Sx_selection_owner_p, | |
1999 | 0, 1, 0, | |
a87ed99c | 2000 | "Whether the current Emacs process owns the given X Selection.\n\ |
ede4db72 RS |
2001 | The arg should be the name of the selection in question, typically one of\n\ |
2002 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'.\n\ | |
2003 | \(Those are literal upper-case symbol names, since that's what X expects.)\n\ | |
2004 | For convenience, the symbol nil is the same as `PRIMARY',\n\ | |
2005 | and t is the same as `SECONDARY'.)") | |
2006 | (selection) | |
2007 | Lisp_Object selection; | |
2008 | { | |
703e0710 | 2009 | check_x (); |
ede4db72 RS |
2010 | CHECK_SYMBOL (selection, 0); |
2011 | if (EQ (selection, Qnil)) selection = QPRIMARY; | |
2012 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
2013 | ||
2014 | if (NILP (Fassq (selection, Vselection_alist))) | |
2015 | return Qnil; | |
2016 | return Qt; | |
2017 | } | |
2018 | ||
2019 | DEFUN ("x-selection-exists-p", Fx_selection_exists_p, Sx_selection_exists_p, | |
2020 | 0, 1, 0, | |
2021 | "Whether there is an owner for the given X Selection.\n\ | |
2022 | The arg should be the name of the selection in question, typically one of\n\ | |
2023 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'.\n\ | |
2024 | \(Those are literal upper-case symbol names, since that's what X expects.)\n\ | |
2025 | For convenience, the symbol nil is the same as `PRIMARY',\n\ | |
2026 | and t is the same as `SECONDARY'.)") | |
2027 | (selection) | |
2028 | Lisp_Object selection; | |
2029 | { | |
2030 | Window owner; | |
356ba514 | 2031 | Atom atom; |
3834c318 | 2032 | Display *dpy; |
378c33ca | 2033 | struct frame *sf = SELECTED_FRAME (); |
3834c318 | 2034 | |
b8c70430 | 2035 | /* It should be safe to call this before we have an X frame. */ |
378c33ca | 2036 | if (! FRAME_X_P (sf)) |
b8c70430 RS |
2037 | return Qnil; |
2038 | ||
378c33ca | 2039 | dpy = FRAME_X_DISPLAY (sf); |
ede4db72 RS |
2040 | CHECK_SYMBOL (selection, 0); |
2041 | if (!NILP (Fx_selection_owner_p (selection))) | |
2042 | return Qt; | |
356ba514 RS |
2043 | if (EQ (selection, Qnil)) selection = QPRIMARY; |
2044 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
378c33ca | 2045 | atom = symbol_to_x_atom (FRAME_X_DISPLAY_INFO (sf), dpy, selection); |
356ba514 RS |
2046 | if (atom == 0) |
2047 | return Qnil; | |
ede4db72 | 2048 | BLOCK_INPUT; |
356ba514 | 2049 | owner = XGetSelectionOwner (dpy, atom); |
ede4db72 RS |
2050 | UNBLOCK_INPUT; |
2051 | return (owner ? Qt : Qnil); | |
2052 | } | |
2053 | ||
2054 | \f | |
2055 | #ifdef CUT_BUFFER_SUPPORT | |
2056 | ||
ede4db72 RS |
2057 | /* Ensure that all 8 cut buffers exist. ICCCM says we gotta... */ |
2058 | static void | |
2059 | initialize_cut_buffers (display, window) | |
2060 | Display *display; | |
2061 | Window window; | |
2062 | { | |
2063 | unsigned char *data = (unsigned char *) ""; | |
2064 | BLOCK_INPUT; | |
2065 | #define FROB(atom) XChangeProperty (display, window, atom, XA_STRING, 8, \ | |
2066 | PropModeAppend, data, 0) | |
2067 | FROB (XA_CUT_BUFFER0); | |
2068 | FROB (XA_CUT_BUFFER1); | |
2069 | FROB (XA_CUT_BUFFER2); | |
2070 | FROB (XA_CUT_BUFFER3); | |
2071 | FROB (XA_CUT_BUFFER4); | |
2072 | FROB (XA_CUT_BUFFER5); | |
2073 | FROB (XA_CUT_BUFFER6); | |
2074 | FROB (XA_CUT_BUFFER7); | |
2075 | #undef FROB | |
2076 | UNBLOCK_INPUT; | |
ede4db72 RS |
2077 | } |
2078 | ||
2079 | ||
a87ed99c | 2080 | #define CHECK_CUT_BUFFER(symbol,n) \ |
ede4db72 RS |
2081 | { CHECK_SYMBOL ((symbol), (n)); \ |
2082 | if (!EQ((symbol), QCUT_BUFFER0) && !EQ((symbol), QCUT_BUFFER1) \ | |
2083 | && !EQ((symbol), QCUT_BUFFER2) && !EQ((symbol), QCUT_BUFFER3) \ | |
2084 | && !EQ((symbol), QCUT_BUFFER4) && !EQ((symbol), QCUT_BUFFER5) \ | |
2085 | && !EQ((symbol), QCUT_BUFFER6) && !EQ((symbol), QCUT_BUFFER7)) \ | |
2086 | Fsignal (Qerror, \ | |
a87ed99c | 2087 | Fcons (build_string ("doesn't name a cut buffer"), \ |
ede4db72 RS |
2088 | Fcons ((symbol), Qnil))); \ |
2089 | } | |
2090 | ||
a87ed99c RS |
2091 | DEFUN ("x-get-cut-buffer-internal", Fx_get_cut_buffer_internal, |
2092 | Sx_get_cut_buffer_internal, 1, 1, 0, | |
2093 | "Returns the value of the named cut buffer (typically CUT_BUFFER0).") | |
ede4db72 RS |
2094 | (buffer) |
2095 | Lisp_Object buffer; | |
2096 | { | |
3834c318 | 2097 | Window window; |
ede4db72 RS |
2098 | Atom buffer_atom; |
2099 | unsigned char *data; | |
2100 | int bytes; | |
2101 | Atom type; | |
2102 | int format; | |
2103 | unsigned long size; | |
2104 | Lisp_Object ret; | |
3834c318 | 2105 | Display *display; |
5c3a351a | 2106 | struct x_display_info *dpyinfo; |
378c33ca | 2107 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2108 | |
703e0710 | 2109 | check_x (); |
378c33ca GM |
2110 | display = FRAME_X_DISPLAY (sf); |
2111 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
3834c318 | 2112 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
a87ed99c | 2113 | CHECK_CUT_BUFFER (buffer, 0); |
5c3a351a | 2114 | buffer_atom = symbol_to_x_atom (dpyinfo, display, buffer); |
ede4db72 RS |
2115 | |
2116 | x_get_window_property (display, window, buffer_atom, &data, &bytes, | |
2117 | &type, &format, &size, 0); | |
22e00739 RS |
2118 | if (!data || !format) |
2119 | return Qnil; | |
ede4db72 RS |
2120 | |
2121 | if (format != 8 || type != XA_STRING) | |
2122 | Fsignal (Qerror, | |
2123 | Fcons (build_string ("cut buffer doesn't contain 8-bit data"), | |
5c3a351a | 2124 | Fcons (x_atom_to_symbol (dpyinfo, display, type), |
ede4db72 RS |
2125 | Fcons (make_number (format), Qnil)))); |
2126 | ||
2127 | ret = (bytes ? make_string ((char *) data, bytes) : Qnil); | |
4feb31b2 | 2128 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 2129 | calls xmalloc itself. */ |
4feb31b2 | 2130 | xfree (data); |
ede4db72 RS |
2131 | return ret; |
2132 | } | |
2133 | ||
2134 | ||
a87ed99c RS |
2135 | DEFUN ("x-store-cut-buffer-internal", Fx_store_cut_buffer_internal, |
2136 | Sx_store_cut_buffer_internal, 2, 2, 0, | |
2137 | "Sets the value of the named cut buffer (typically CUT_BUFFER0).") | |
ede4db72 RS |
2138 | (buffer, string) |
2139 | Lisp_Object buffer, string; | |
2140 | { | |
3834c318 | 2141 | Window window; |
ede4db72 RS |
2142 | Atom buffer_atom; |
2143 | unsigned char *data; | |
2144 | int bytes; | |
2145 | int bytes_remaining; | |
3834c318 RS |
2146 | int max_bytes; |
2147 | Display *display; | |
378c33ca | 2148 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2149 | |
703e0710 | 2150 | check_x (); |
378c33ca | 2151 | display = FRAME_X_DISPLAY (sf); |
3834c318 RS |
2152 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
2153 | ||
2154 | max_bytes = SELECTION_QUANTUM (display); | |
2155 | if (max_bytes > MAX_SELECTION_QUANTUM) | |
2156 | max_bytes = MAX_SELECTION_QUANTUM; | |
2157 | ||
a87ed99c | 2158 | CHECK_CUT_BUFFER (buffer, 0); |
ede4db72 | 2159 | CHECK_STRING (string, 0); |
378c33ca | 2160 | buffer_atom = symbol_to_x_atom (FRAME_X_DISPLAY_INFO (sf), |
5c3a351a | 2161 | display, buffer); |
ede4db72 | 2162 | data = (unsigned char *) XSTRING (string)->data; |
fc932ac6 | 2163 | bytes = STRING_BYTES (XSTRING (string)); |
ede4db72 RS |
2164 | bytes_remaining = bytes; |
2165 | ||
378c33ca | 2166 | if (! FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized) |
04649dbc KH |
2167 | { |
2168 | initialize_cut_buffers (display, window); | |
378c33ca | 2169 | FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized = 1; |
04649dbc | 2170 | } |
ede4db72 RS |
2171 | |
2172 | BLOCK_INPUT; | |
10608c8c RS |
2173 | |
2174 | /* Don't mess up with an empty value. */ | |
2175 | if (!bytes_remaining) | |
2176 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
2177 | PropModeReplace, data, 0); | |
2178 | ||
ede4db72 RS |
2179 | while (bytes_remaining) |
2180 | { | |
2181 | int chunk = (bytes_remaining < max_bytes | |
2182 | ? bytes_remaining : max_bytes); | |
2183 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
2184 | (bytes_remaining == bytes | |
2185 | ? PropModeReplace | |
2186 | : PropModeAppend), | |
2187 | data, chunk); | |
2188 | data += chunk; | |
2189 | bytes_remaining -= chunk; | |
2190 | } | |
2191 | UNBLOCK_INPUT; | |
2192 | return string; | |
2193 | } | |
2194 | ||
2195 | ||
a87ed99c RS |
2196 | DEFUN ("x-rotate-cut-buffers-internal", Fx_rotate_cut_buffers_internal, |
2197 | Sx_rotate_cut_buffers_internal, 1, 1, 0, | |
88623f1c RS |
2198 | "Rotate the values of the cut buffers by the given number of step.\n\ |
2199 | Positive means shift the values forward, negative means backward.") | |
ede4db72 RS |
2200 | (n) |
2201 | Lisp_Object n; | |
2202 | { | |
3834c318 RS |
2203 | Window window; |
2204 | Atom props[8]; | |
2205 | Display *display; | |
378c33ca | 2206 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2207 | |
703e0710 | 2208 | check_x (); |
378c33ca | 2209 | display = FRAME_X_DISPLAY (sf); |
3834c318 | 2210 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
7da64e5c | 2211 | CHECK_NUMBER (n, 0); |
3834c318 RS |
2212 | if (XINT (n) == 0) |
2213 | return n; | |
378c33ca | 2214 | if (! FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized) |
04649dbc KH |
2215 | { |
2216 | initialize_cut_buffers (display, window); | |
378c33ca | 2217 | FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized = 1; |
04649dbc | 2218 | } |
3834c318 | 2219 | |
ede4db72 RS |
2220 | props[0] = XA_CUT_BUFFER0; |
2221 | props[1] = XA_CUT_BUFFER1; | |
2222 | props[2] = XA_CUT_BUFFER2; | |
2223 | props[3] = XA_CUT_BUFFER3; | |
2224 | props[4] = XA_CUT_BUFFER4; | |
2225 | props[5] = XA_CUT_BUFFER5; | |
2226 | props[6] = XA_CUT_BUFFER6; | |
2227 | props[7] = XA_CUT_BUFFER7; | |
2228 | BLOCK_INPUT; | |
2229 | XRotateWindowProperties (display, window, props, 8, XINT (n)); | |
2230 | UNBLOCK_INPUT; | |
2231 | return n; | |
2232 | } | |
2233 | ||
2234 | #endif | |
2235 | \f | |
ede4db72 RS |
2236 | void |
2237 | syms_of_xselect () | |
2238 | { | |
ede4db72 RS |
2239 | defsubr (&Sx_get_selection_internal); |
2240 | defsubr (&Sx_own_selection_internal); | |
2241 | defsubr (&Sx_disown_selection_internal); | |
2242 | defsubr (&Sx_selection_owner_p); | |
2243 | defsubr (&Sx_selection_exists_p); | |
2244 | ||
2245 | #ifdef CUT_BUFFER_SUPPORT | |
a87ed99c RS |
2246 | defsubr (&Sx_get_cut_buffer_internal); |
2247 | defsubr (&Sx_store_cut_buffer_internal); | |
2248 | defsubr (&Sx_rotate_cut_buffers_internal); | |
ede4db72 RS |
2249 | #endif |
2250 | ||
2251 | reading_selection_reply = Fcons (Qnil, Qnil); | |
2252 | staticpro (&reading_selection_reply); | |
2253 | reading_selection_window = 0; | |
2254 | reading_which_selection = 0; | |
2255 | ||
2256 | property_change_wait_list = 0; | |
2f65feb6 | 2257 | prop_location_identifier = 0; |
ede4db72 RS |
2258 | property_change_reply = Fcons (Qnil, Qnil); |
2259 | staticpro (&property_change_reply); | |
2260 | ||
2261 | Vselection_alist = Qnil; | |
2262 | staticpro (&Vselection_alist); | |
2263 | ||
2264 | DEFVAR_LISP ("selection-converter-alist", &Vselection_converter_alist, | |
4cf066bb | 2265 | "An alist associating X Windows selection-types with functions.\n\ |
ede4db72 RS |
2266 | These functions are called to convert the selection, with three args:\n\ |
2267 | the name of the selection (typically `PRIMARY', `SECONDARY', or `CLIPBOARD');\n\ | |
2268 | a desired type to which the selection should be converted;\n\ | |
2269 | and the local selection value (whatever was given to `x-own-selection').\n\ | |
2270 | \n\ | |
2271 | The function should return the value to send to the X server\n\ | |
2272 | \(typically a string). A return value of nil\n\ | |
2273 | means that the conversion could not be done.\n\ | |
2274 | A return value which is the symbol `NULL'\n\ | |
2275 | means that a side-effect was executed,\n\ | |
2276 | and there is no meaningful selection value."); | |
2277 | Vselection_converter_alist = Qnil; | |
2278 | ||
2279 | DEFVAR_LISP ("x-lost-selection-hooks", &Vx_lost_selection_hooks, | |
4cf066bb | 2280 | "A list of functions to be called when Emacs loses an X selection.\n\ |
ede4db72 RS |
2281 | \(This happens when some other X client makes its own selection\n\ |
2282 | or when a Lisp program explicitly clears the selection.)\n\ | |
2283 | The functions are called with one argument, the selection type\n\ | |
d31b6237 | 2284 | \(a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD')."); |
ede4db72 RS |
2285 | Vx_lost_selection_hooks = Qnil; |
2286 | ||
2287 | DEFVAR_LISP ("x-sent-selection-hooks", &Vx_sent_selection_hooks, | |
4cf066bb | 2288 | "A list of functions to be called when Emacs answers a selection request.\n\ |
ede4db72 RS |
2289 | The functions are called with four arguments:\n\ |
2290 | - the selection name (typically `PRIMARY', `SECONDARY', or `CLIPBOARD');\n\ | |
2291 | - the selection-type which Emacs was asked to convert the\n\ | |
2292 | selection into before sending (for example, `STRING' or `LENGTH');\n\ | |
2293 | - a flag indicating success or failure for responding to the request.\n\ | |
2294 | We might have failed (and declined the request) for any number of reasons,\n\ | |
2295 | including being asked for a selection that we no longer own, or being asked\n\ | |
2296 | to convert into a type that we don't know about or that is inappropriate.\n\ | |
2297 | This hook doesn't let you change the behavior of Emacs's selection replies,\n\ | |
2298 | it merely informs you that they have happened."); | |
2299 | Vx_sent_selection_hooks = Qnil; | |
2300 | ||
93e4ce1b | 2301 | DEFVAR_LISP ("selection-coding-system", &Vselection_coding_system, |
4cf066bb RS |
2302 | "Coding system for communicating with other X clients.\n\ |
2303 | When sending or receiving text via cut_buffer, selection, and clipboard,\n\ | |
2304 | the text is encoded or decoded by this coding system.\n\ | |
aac77ff1 | 2305 | The default value is `compound-text'."); |
93e4ce1b | 2306 | Vselection_coding_system = intern ("compound-text"); |
2584c9ec | 2307 | |
16cd5029 KH |
2308 | DEFVAR_LISP ("next-selection-coding-system", &Vnext_selection_coding_system, |
2309 | "Coding system for the next communication with other X clients.\n\ | |
2310 | Usually, `selection-coding-system' is used for communicating with\n\ | |
2311 | other X clients. But, if this variable is set, it is used for the\n\ | |
2312 | next communication only. After the communication, this variable is\n\ | |
2313 | set to nil."); | |
2314 | Vnext_selection_coding_system = Qnil; | |
2315 | ||
ede4db72 | 2316 | DEFVAR_INT ("x-selection-timeout", &x_selection_timeout, |
4cf066bb | 2317 | "Number of milliseconds to wait for a selection reply.\n\ |
2a1a4c9d | 2318 | If the selection owner doesn't reply in this time, we give up.\n\ |
ede4db72 | 2319 | A value of 0 means wait as long as necessary. This is initialized from the\n\ |
80da0190 | 2320 | \"*selectionTimeout\" resource."); |
ede4db72 RS |
2321 | x_selection_timeout = 0; |
2322 | ||
2323 | QPRIMARY = intern ("PRIMARY"); staticpro (&QPRIMARY); | |
2324 | QSECONDARY = intern ("SECONDARY"); staticpro (&QSECONDARY); | |
2325 | QSTRING = intern ("STRING"); staticpro (&QSTRING); | |
2326 | QINTEGER = intern ("INTEGER"); staticpro (&QINTEGER); | |
2327 | QCLIPBOARD = intern ("CLIPBOARD"); staticpro (&QCLIPBOARD); | |
2328 | QTIMESTAMP = intern ("TIMESTAMP"); staticpro (&QTIMESTAMP); | |
2329 | QTEXT = intern ("TEXT"); staticpro (&QTEXT); | |
e6c7c988 | 2330 | QCOMPOUND_TEXT = intern ("COMPOUND_TEXT"); staticpro (&QCOMPOUND_TEXT); |
ede4db72 RS |
2331 | QTIMESTAMP = intern ("TIMESTAMP"); staticpro (&QTIMESTAMP); |
2332 | QDELETE = intern ("DELETE"); staticpro (&QDELETE); | |
2333 | QMULTIPLE = intern ("MULTIPLE"); staticpro (&QMULTIPLE); | |
2334 | QINCR = intern ("INCR"); staticpro (&QINCR); | |
2335 | QEMACS_TMP = intern ("_EMACS_TMP_"); staticpro (&QEMACS_TMP); | |
2336 | QTARGETS = intern ("TARGETS"); staticpro (&QTARGETS); | |
2337 | QATOM = intern ("ATOM"); staticpro (&QATOM); | |
2338 | QATOM_PAIR = intern ("ATOM_PAIR"); staticpro (&QATOM_PAIR); | |
2339 | QNULL = intern ("NULL"); staticpro (&QNULL); | |
2340 | ||
2341 | #ifdef CUT_BUFFER_SUPPORT | |
2342 | QCUT_BUFFER0 = intern ("CUT_BUFFER0"); staticpro (&QCUT_BUFFER0); | |
2343 | QCUT_BUFFER1 = intern ("CUT_BUFFER1"); staticpro (&QCUT_BUFFER1); | |
2344 | QCUT_BUFFER2 = intern ("CUT_BUFFER2"); staticpro (&QCUT_BUFFER2); | |
2345 | QCUT_BUFFER3 = intern ("CUT_BUFFER3"); staticpro (&QCUT_BUFFER3); | |
2346 | QCUT_BUFFER4 = intern ("CUT_BUFFER4"); staticpro (&QCUT_BUFFER4); | |
2347 | QCUT_BUFFER5 = intern ("CUT_BUFFER5"); staticpro (&QCUT_BUFFER5); | |
2348 | QCUT_BUFFER6 = intern ("CUT_BUFFER6"); staticpro (&QCUT_BUFFER6); | |
2349 | QCUT_BUFFER7 = intern ("CUT_BUFFER7"); staticpro (&QCUT_BUFFER7); | |
2350 | #endif | |
2351 | ||
2352 | } |