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2408b3a1 | 1 | /* X Selection processing for Emacs. |
2f51feb8 | 2 | Copyright (C) 1993, 1994, 1995, 1996, 1997, 2000, 2001, 2003 |
d9c0d4a3 | 3 | Free Software Foundation. |
ede4db72 RS |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
ede4db72 | 21 | |
c6c5df7f | 22 | |
ede4db72 RS |
23 | /* Rewritten by jwz */ |
24 | ||
18160b98 | 25 | #include <config.h> |
ede4db72 RS |
26 | #include "lisp.h" |
27 | #include "xterm.h" /* for all of the X includes */ | |
7da64e5c RS |
28 | #include "dispextern.h" /* frame.h seems to want this */ |
29 | #include "frame.h" /* Need this to get the X window of selected_frame */ | |
9ac0d9e0 | 30 | #include "blockinput.h" |
5faa9b45 | 31 | #include "buffer.h" |
e6c7c988 KH |
32 | #include "charset.h" |
33 | #include "coding.h" | |
dfcf069d | 34 | #include "process.h" |
0caef0ec | 35 | #include "composite.h" |
7da64e5c | 36 | |
d9c0d4a3 GM |
37 | struct prop_location; |
38 | ||
39 | static Lisp_Object x_atom_to_symbol P_ ((Display *dpy, Atom atom)); | |
40 | static Atom symbol_to_x_atom P_ ((struct x_display_info *, Display *, | |
41 | Lisp_Object)); | |
42 | static void x_own_selection P_ ((Lisp_Object, Lisp_Object)); | |
5109c8dd | 43 | static Lisp_Object x_get_local_selection P_ ((Lisp_Object, Lisp_Object, int)); |
d9c0d4a3 GM |
44 | static void x_decline_selection_request P_ ((struct input_event *)); |
45 | static Lisp_Object x_selection_request_lisp_error P_ ((Lisp_Object)); | |
46 | static Lisp_Object queue_selection_requests_unwind P_ ((Lisp_Object)); | |
47 | static Lisp_Object some_frame_on_display P_ ((struct x_display_info *)); | |
48 | static void x_reply_selection_request P_ ((struct input_event *, int, | |
49 | unsigned char *, int, Atom)); | |
50 | static int waiting_for_other_props_on_window P_ ((Display *, Window)); | |
51 | static struct prop_location *expect_property_change P_ ((Display *, Window, | |
52 | Atom, int)); | |
53 | static void unexpect_property_change P_ ((struct prop_location *)); | |
54 | static Lisp_Object wait_for_property_change_unwind P_ ((Lisp_Object)); | |
55 | static void wait_for_property_change P_ ((struct prop_location *)); | |
56 | static Lisp_Object x_get_foreign_selection P_ ((Lisp_Object, Lisp_Object)); | |
57 | static void x_get_window_property P_ ((Display *, Window, Atom, | |
58 | unsigned char **, int *, | |
59 | Atom *, int *, unsigned long *, int)); | |
60 | static void receive_incremental_selection P_ ((Display *, Window, Atom, | |
61 | Lisp_Object, unsigned, | |
62 | unsigned char **, int *, | |
63 | Atom *, int *, unsigned long *)); | |
64 | static Lisp_Object x_get_window_property_as_lisp_data P_ ((Display *, | |
65 | Window, Atom, | |
66 | Lisp_Object, Atom)); | |
67 | static Lisp_Object selection_data_to_lisp_data P_ ((Display *, unsigned char *, | |
68 | int, Atom, int)); | |
69 | static void lisp_data_to_selection_data P_ ((Display *, Lisp_Object, | |
70 | unsigned char **, Atom *, | |
71 | unsigned *, int *, int *)); | |
72 | static Lisp_Object clean_local_selection_data P_ ((Lisp_Object)); | |
73 | static void initialize_cut_buffers P_ ((Display *, Window)); | |
74 | ||
75 | ||
76 | /* Printing traces to stderr. */ | |
77 | ||
78 | #ifdef TRACE_SELECTION | |
79 | #define TRACE0(fmt) \ | |
80 | fprintf (stderr, "%d: " fmt "\n", getpid ()) | |
81 | #define TRACE1(fmt, a0) \ | |
82 | fprintf (stderr, "%d: " fmt "\n", getpid (), a0) | |
83 | #define TRACE2(fmt, a0, a1) \ | |
84 | fprintf (stderr, "%d: " fmt "\n", getpid (), a0, a1) | |
85 | #else | |
86 | #define TRACE0(fmt) (void) 0 | |
87 | #define TRACE1(fmt, a0) (void) 0 | |
88 | #define TRACE2(fmt, a0, a1) (void) 0 | |
89 | #endif | |
90 | ||
91 | ||
ede4db72 RS |
92 | #define CUT_BUFFER_SUPPORT |
93 | ||
ede4db72 RS |
94 | Lisp_Object QPRIMARY, QSECONDARY, QSTRING, QINTEGER, QCLIPBOARD, QTIMESTAMP, |
95 | QTEXT, QDELETE, QMULTIPLE, QINCR, QEMACS_TMP, QTARGETS, QATOM, QNULL, | |
96 | QATOM_PAIR; | |
97 | ||
e6c7c988 | 98 | Lisp_Object QCOMPOUND_TEXT; /* This is a type of selection. */ |
5109c8dd | 99 | Lisp_Object QUTF8_STRING; /* This is a type of selection. */ |
e6c7c988 | 100 | |
5a79ea57 | 101 | Lisp_Object Qcompound_text_with_extensions; |
fbbe0ace | 102 | |
ede4db72 RS |
103 | #ifdef CUT_BUFFER_SUPPORT |
104 | Lisp_Object QCUT_BUFFER0, QCUT_BUFFER1, QCUT_BUFFER2, QCUT_BUFFER3, | |
105 | QCUT_BUFFER4, QCUT_BUFFER5, QCUT_BUFFER6, QCUT_BUFFER7; | |
106 | #endif | |
107 | ||
8f4f023f RS |
108 | static Lisp_Object Vx_lost_selection_hooks; |
109 | static Lisp_Object Vx_sent_selection_hooks; | |
2584c9ec KH |
110 | /* Coding system for communicating with other X clients via cutbuffer, |
111 | selection, and clipboard. */ | |
93e4ce1b | 112 | static Lisp_Object Vselection_coding_system; |
ede4db72 | 113 | |
16cd5029 KH |
114 | /* Coding system for the next communicating with other X clients. */ |
115 | static Lisp_Object Vnext_selection_coding_system; | |
116 | ||
ede4db72 RS |
117 | /* If this is a smaller number than the max-request-size of the display, |
118 | emacs will use INCR selection transfer when the selection is larger | |
119 | than this. The max-request-size is usually around 64k, so if you want | |
1b65481e | 120 | emacs to use incremental selection transfers when the selection is |
ede4db72 | 121 | smaller than that, set this. I added this mostly for debugging the |
8f4f023f | 122 | incremental transfer stuff, but it might improve server performance. */ |
ede4db72 RS |
123 | #define MAX_SELECTION_QUANTUM 0xFFFFFF |
124 | ||
c3498e64 JB |
125 | #ifdef HAVE_X11R4 |
126 | #define SELECTION_QUANTUM(dpy) ((XMaxRequestSize(dpy) << 2) - 100) | |
127 | #else | |
128 | #define SELECTION_QUANTUM(dpy) (((dpy)->max_request_size << 2) - 100) | |
129 | #endif | |
ede4db72 | 130 | |
7da64e5c | 131 | /* The timestamp of the last input event Emacs received from the X server. */ |
29674445 KH |
132 | /* Defined in keyboard.c. */ |
133 | extern unsigned long last_event_timestamp; | |
ede4db72 RS |
134 | |
135 | /* This is an association list whose elements are of the form | |
118bd841 RS |
136 | ( SELECTION-NAME SELECTION-VALUE SELECTION-TIMESTAMP FRAME) |
137 | SELECTION-NAME is a lisp symbol, whose name is the name of an X Atom. | |
138 | SELECTION-VALUE is the value that emacs owns for that selection. | |
ede4db72 | 139 | It may be any kind of Lisp object. |
118bd841 | 140 | SELECTION-TIMESTAMP is the time at which emacs began owning this selection, |
ede4db72 | 141 | as a cons of two 16-bit numbers (making a 32 bit time.) |
118bd841 RS |
142 | FRAME is the frame for which we made the selection. |
143 | If there is an entry in this alist, then it can be assumed that Emacs owns | |
ede4db72 RS |
144 | that selection. |
145 | The only (eq) parts of this list that are visible from Lisp are the | |
8f4f023f RS |
146 | selection-values. */ |
147 | static Lisp_Object Vselection_alist; | |
ede4db72 RS |
148 | |
149 | /* This is an alist whose CARs are selection-types (whose names are the same | |
150 | as the names of X Atoms) and whose CDRs are the names of Lisp functions to | |
1b65481e | 151 | call to convert the given Emacs selection value to a string representing |
ede4db72 | 152 | the given selection type. This is for Lisp-level extension of the emacs |
8f4f023f RS |
153 | selection handling. */ |
154 | static Lisp_Object Vselection_converter_alist; | |
ede4db72 RS |
155 | |
156 | /* If the selection owner takes too long to reply to a selection request, | |
8f4f023f | 157 | we give up on it. This is in milliseconds (0 = no timeout.) */ |
31ade731 | 158 | static EMACS_INT x_selection_timeout; |
ede4db72 RS |
159 | \f |
160 | /* Utility functions */ | |
161 | ||
162 | static void lisp_data_to_selection_data (); | |
163 | static Lisp_Object selection_data_to_lisp_data (); | |
164 | static Lisp_Object x_get_window_property_as_lisp_data (); | |
165 | ||
1b65481e | 166 | /* This converts a Lisp symbol to a server Atom, avoiding a server |
ede4db72 RS |
167 | roundtrip whenever possible. */ |
168 | ||
169 | static Atom | |
5c3a351a RS |
170 | symbol_to_x_atom (dpyinfo, display, sym) |
171 | struct x_display_info *dpyinfo; | |
ede4db72 RS |
172 | Display *display; |
173 | Lisp_Object sym; | |
174 | { | |
175 | Atom val; | |
176 | if (NILP (sym)) return 0; | |
177 | if (EQ (sym, QPRIMARY)) return XA_PRIMARY; | |
178 | if (EQ (sym, QSECONDARY)) return XA_SECONDARY; | |
179 | if (EQ (sym, QSTRING)) return XA_STRING; | |
180 | if (EQ (sym, QINTEGER)) return XA_INTEGER; | |
181 | if (EQ (sym, QATOM)) return XA_ATOM; | |
5c3a351a RS |
182 | if (EQ (sym, QCLIPBOARD)) return dpyinfo->Xatom_CLIPBOARD; |
183 | if (EQ (sym, QTIMESTAMP)) return dpyinfo->Xatom_TIMESTAMP; | |
184 | if (EQ (sym, QTEXT)) return dpyinfo->Xatom_TEXT; | |
e6c7c988 | 185 | if (EQ (sym, QCOMPOUND_TEXT)) return dpyinfo->Xatom_COMPOUND_TEXT; |
5109c8dd | 186 | if (EQ (sym, QUTF8_STRING)) return dpyinfo->Xatom_UTF8_STRING; |
5c3a351a RS |
187 | if (EQ (sym, QDELETE)) return dpyinfo->Xatom_DELETE; |
188 | if (EQ (sym, QMULTIPLE)) return dpyinfo->Xatom_MULTIPLE; | |
189 | if (EQ (sym, QINCR)) return dpyinfo->Xatom_INCR; | |
190 | if (EQ (sym, QEMACS_TMP)) return dpyinfo->Xatom_EMACS_TMP; | |
191 | if (EQ (sym, QTARGETS)) return dpyinfo->Xatom_TARGETS; | |
192 | if (EQ (sym, QNULL)) return dpyinfo->Xatom_NULL; | |
ede4db72 RS |
193 | #ifdef CUT_BUFFER_SUPPORT |
194 | if (EQ (sym, QCUT_BUFFER0)) return XA_CUT_BUFFER0; | |
195 | if (EQ (sym, QCUT_BUFFER1)) return XA_CUT_BUFFER1; | |
196 | if (EQ (sym, QCUT_BUFFER2)) return XA_CUT_BUFFER2; | |
197 | if (EQ (sym, QCUT_BUFFER3)) return XA_CUT_BUFFER3; | |
198 | if (EQ (sym, QCUT_BUFFER4)) return XA_CUT_BUFFER4; | |
199 | if (EQ (sym, QCUT_BUFFER5)) return XA_CUT_BUFFER5; | |
200 | if (EQ (sym, QCUT_BUFFER6)) return XA_CUT_BUFFER6; | |
201 | if (EQ (sym, QCUT_BUFFER7)) return XA_CUT_BUFFER7; | |
202 | #endif | |
203 | if (!SYMBOLP (sym)) abort (); | |
204 | ||
d5db4077 | 205 | TRACE1 (" XInternAtom %s", (char *) SDATA (SYMBOL_NAME (sym))); |
ede4db72 | 206 | BLOCK_INPUT; |
d5db4077 | 207 | val = XInternAtom (display, (char *) SDATA (SYMBOL_NAME (sym)), False); |
ede4db72 RS |
208 | UNBLOCK_INPUT; |
209 | return val; | |
210 | } | |
211 | ||
212 | ||
213 | /* This converts a server Atom to a Lisp symbol, avoiding server roundtrips | |
214 | and calls to intern whenever possible. */ | |
215 | ||
216 | static Lisp_Object | |
d9c0d4a3 GM |
217 | x_atom_to_symbol (dpy, atom) |
218 | Display *dpy; | |
ede4db72 RS |
219 | Atom atom; |
220 | { | |
d9c0d4a3 | 221 | struct x_display_info *dpyinfo; |
ede4db72 RS |
222 | char *str; |
223 | Lisp_Object val; | |
1b65481e | 224 | |
d9c0d4a3 GM |
225 | if (! atom) |
226 | return Qnil; | |
1b65481e | 227 | |
7da64e5c RS |
228 | switch (atom) |
229 | { | |
230 | case XA_PRIMARY: | |
231 | return QPRIMARY; | |
232 | case XA_SECONDARY: | |
233 | return QSECONDARY; | |
234 | case XA_STRING: | |
235 | return QSTRING; | |
236 | case XA_INTEGER: | |
237 | return QINTEGER; | |
238 | case XA_ATOM: | |
239 | return QATOM; | |
ede4db72 | 240 | #ifdef CUT_BUFFER_SUPPORT |
7da64e5c RS |
241 | case XA_CUT_BUFFER0: |
242 | return QCUT_BUFFER0; | |
243 | case XA_CUT_BUFFER1: | |
244 | return QCUT_BUFFER1; | |
245 | case XA_CUT_BUFFER2: | |
246 | return QCUT_BUFFER2; | |
247 | case XA_CUT_BUFFER3: | |
248 | return QCUT_BUFFER3; | |
249 | case XA_CUT_BUFFER4: | |
250 | return QCUT_BUFFER4; | |
251 | case XA_CUT_BUFFER5: | |
252 | return QCUT_BUFFER5; | |
253 | case XA_CUT_BUFFER6: | |
254 | return QCUT_BUFFER6; | |
255 | case XA_CUT_BUFFER7: | |
256 | return QCUT_BUFFER7; | |
ede4db72 | 257 | #endif |
7da64e5c RS |
258 | } |
259 | ||
d9c0d4a3 | 260 | dpyinfo = x_display_info_for_display (dpy); |
5c3a351a | 261 | if (atom == dpyinfo->Xatom_CLIPBOARD) |
7da64e5c | 262 | return QCLIPBOARD; |
5c3a351a | 263 | if (atom == dpyinfo->Xatom_TIMESTAMP) |
7da64e5c | 264 | return QTIMESTAMP; |
5c3a351a | 265 | if (atom == dpyinfo->Xatom_TEXT) |
7da64e5c | 266 | return QTEXT; |
e6c7c988 KH |
267 | if (atom == dpyinfo->Xatom_COMPOUND_TEXT) |
268 | return QCOMPOUND_TEXT; | |
5109c8dd KH |
269 | if (atom == dpyinfo->Xatom_UTF8_STRING) |
270 | return QUTF8_STRING; | |
5c3a351a | 271 | if (atom == dpyinfo->Xatom_DELETE) |
7da64e5c | 272 | return QDELETE; |
5c3a351a | 273 | if (atom == dpyinfo->Xatom_MULTIPLE) |
7da64e5c | 274 | return QMULTIPLE; |
5c3a351a | 275 | if (atom == dpyinfo->Xatom_INCR) |
7da64e5c | 276 | return QINCR; |
5c3a351a | 277 | if (atom == dpyinfo->Xatom_EMACS_TMP) |
7da64e5c | 278 | return QEMACS_TMP; |
5c3a351a | 279 | if (atom == dpyinfo->Xatom_TARGETS) |
7da64e5c | 280 | return QTARGETS; |
5c3a351a | 281 | if (atom == dpyinfo->Xatom_NULL) |
7da64e5c | 282 | return QNULL; |
ede4db72 RS |
283 | |
284 | BLOCK_INPUT; | |
d9c0d4a3 | 285 | str = XGetAtomName (dpy, atom); |
ede4db72 | 286 | UNBLOCK_INPUT; |
d9c0d4a3 | 287 | TRACE1 ("XGetAtomName --> %s", str); |
ede4db72 RS |
288 | if (! str) return Qnil; |
289 | val = intern (str); | |
290 | BLOCK_INPUT; | |
0158abbc | 291 | /* This was allocated by Xlib, so use XFree. */ |
ede4db72 RS |
292 | XFree (str); |
293 | UNBLOCK_INPUT; | |
294 | return val; | |
295 | } | |
8a89415e | 296 | \f |
ede4db72 | 297 | /* Do protocol to assert ourself as a selection owner. |
1b65481e | 298 | Update the Vselection_alist so that we can reply to later requests for |
ede4db72 RS |
299 | our selection. */ |
300 | ||
301 | static void | |
302 | x_own_selection (selection_name, selection_value) | |
303 | Lisp_Object selection_name, selection_value; | |
304 | { | |
378c33ca GM |
305 | struct frame *sf = SELECTED_FRAME (); |
306 | Window selecting_window = FRAME_X_WINDOW (sf); | |
307 | Display *display = FRAME_X_DISPLAY (sf); | |
7da64e5c | 308 | Time time = last_event_timestamp; |
ede4db72 | 309 | Atom selection_atom; |
378c33ca | 310 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (sf); |
5a499696 | 311 | int count; |
ede4db72 | 312 | |
b7826503 | 313 | CHECK_SYMBOL (selection_name); |
5c3a351a | 314 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection_name); |
ede4db72 RS |
315 | |
316 | BLOCK_INPUT; | |
5a499696 | 317 | count = x_catch_errors (display); |
ede4db72 | 318 | XSetSelectionOwner (display, selection_atom, selecting_window, time); |
a7b24d46 | 319 | x_check_errors (display, "Can't set selection: %s"); |
5a499696 | 320 | x_uncatch_errors (display, count); |
ede4db72 RS |
321 | UNBLOCK_INPUT; |
322 | ||
323 | /* Now update the local cache */ | |
324 | { | |
325 | Lisp_Object selection_time; | |
326 | Lisp_Object selection_data; | |
327 | Lisp_Object prev_value; | |
328 | ||
329 | selection_time = long_to_cons ((unsigned long) time); | |
330 | selection_data = Fcons (selection_name, | |
331 | Fcons (selection_value, | |
118bd841 | 332 | Fcons (selection_time, |
378c33ca | 333 | Fcons (selected_frame, Qnil)))); |
ede4db72 RS |
334 | prev_value = assq_no_quit (selection_name, Vselection_alist); |
335 | ||
336 | Vselection_alist = Fcons (selection_data, Vselection_alist); | |
337 | ||
338 | /* If we already owned the selection, remove the old selection data. | |
339 | Perhaps we should destructively modify it instead. | |
340 | Don't use Fdelq as that may QUIT. */ | |
341 | if (!NILP (prev_value)) | |
342 | { | |
343 | Lisp_Object rest; /* we know it's not the CAR, so it's easy. */ | |
344 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) | |
8e713be6 | 345 | if (EQ (prev_value, Fcar (XCDR (rest)))) |
ede4db72 | 346 | { |
f3fbd155 | 347 | XSETCDR (rest, Fcdr (XCDR (rest))); |
ede4db72 RS |
348 | break; |
349 | } | |
350 | } | |
351 | } | |
352 | } | |
353 | \f | |
354 | /* Given a selection-name and desired type, look up our local copy of | |
355 | the selection value and convert it to the type. | |
356 | The value is nil or a string. | |
5109c8dd KH |
357 | This function is used both for remote requests (LOCAL_REQUEST is zero) |
358 | and for local x-get-selection-internal (LOCAL_REQUEST is nonzero). | |
ede4db72 RS |
359 | |
360 | This calls random Lisp code, and may signal or gc. */ | |
361 | ||
362 | static Lisp_Object | |
5109c8dd | 363 | x_get_local_selection (selection_symbol, target_type, local_request) |
ede4db72 | 364 | Lisp_Object selection_symbol, target_type; |
5109c8dd | 365 | int local_request; |
ede4db72 RS |
366 | { |
367 | Lisp_Object local_value; | |
368 | Lisp_Object handler_fn, value, type, check; | |
369 | int count; | |
370 | ||
371 | local_value = assq_no_quit (selection_symbol, Vselection_alist); | |
372 | ||
373 | if (NILP (local_value)) return Qnil; | |
374 | ||
375 | /* TIMESTAMP and MULTIPLE are special cases 'cause that's easiest. */ | |
376 | if (EQ (target_type, QTIMESTAMP)) | |
377 | { | |
378 | handler_fn = Qnil; | |
8e713be6 | 379 | value = XCAR (XCDR (XCDR (local_value))); |
ede4db72 RS |
380 | } |
381 | #if 0 | |
382 | else if (EQ (target_type, QDELETE)) | |
383 | { | |
384 | handler_fn = Qnil; | |
385 | Fx_disown_selection_internal | |
386 | (selection_symbol, | |
8e713be6 | 387 | XCAR (XCDR (XCDR (local_value)))); |
ede4db72 RS |
388 | value = QNULL; |
389 | } | |
390 | #endif | |
391 | ||
392 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
393 | else if (CONSP (target_type) | |
8e713be6 | 394 | && XCAR (target_type) == QMULTIPLE) |
ede4db72 | 395 | { |
9d2d1dd8 KH |
396 | Lisp_Object pairs; |
397 | int size; | |
ede4db72 | 398 | int i; |
8e713be6 | 399 | pairs = XCDR (target_type); |
9d2d1dd8 | 400 | size = XVECTOR (pairs)->size; |
ede4db72 RS |
401 | /* If the target is MULTIPLE, then target_type looks like |
402 | (MULTIPLE . [[SELECTION1 TARGET1] [SELECTION2 TARGET2] ... ]) | |
403 | We modify the second element of each pair in the vector and | |
404 | return it as [[SELECTION1 <value1>] [SELECTION2 <value2>] ... ] | |
405 | */ | |
406 | for (i = 0; i < size; i++) | |
407 | { | |
9d2d1dd8 KH |
408 | Lisp_Object pair; |
409 | pair = XVECTOR (pairs)->contents [i]; | |
ede4db72 RS |
410 | XVECTOR (pair)->contents [1] |
411 | = x_get_local_selection (XVECTOR (pair)->contents [0], | |
5109c8dd KH |
412 | XVECTOR (pair)->contents [1], |
413 | local_request); | |
ede4db72 RS |
414 | } |
415 | return pairs; | |
416 | } | |
417 | #endif | |
418 | else | |
419 | { | |
420 | /* Don't allow a quit within the converter. | |
421 | When the user types C-g, he would be surprised | |
422 | if by luck it came during a converter. */ | |
aed13378 | 423 | count = SPECPDL_INDEX (); |
ede4db72 RS |
424 | specbind (Qinhibit_quit, Qt); |
425 | ||
b7826503 | 426 | CHECK_SYMBOL (target_type); |
ede4db72 | 427 | handler_fn = Fcdr (Fassq (target_type, Vselection_converter_alist)); |
1eb4d468 RS |
428 | if (!NILP (handler_fn)) |
429 | value = call3 (handler_fn, | |
5109c8dd | 430 | selection_symbol, (local_request ? Qnil : target_type), |
8e713be6 | 431 | XCAR (XCDR (local_value))); |
1eb4d468 RS |
432 | else |
433 | value = Qnil; | |
ede4db72 RS |
434 | unbind_to (count, Qnil); |
435 | } | |
436 | ||
437 | /* Make sure this value is of a type that we could transmit | |
438 | to another X client. */ | |
a87ed99c | 439 | |
ede4db72 RS |
440 | check = value; |
441 | if (CONSP (value) | |
8e713be6 KR |
442 | && SYMBOLP (XCAR (value))) |
443 | type = XCAR (value), | |
444 | check = XCDR (value); | |
1b65481e | 445 | |
ede4db72 RS |
446 | if (STRINGP (check) |
447 | || VECTORP (check) | |
448 | || SYMBOLP (check) | |
7da64e5c | 449 | || INTEGERP (check) |
ede4db72 RS |
450 | || NILP (value)) |
451 | return value; | |
a87ed99c | 452 | /* Check for a value that cons_to_long could handle. */ |
ede4db72 | 453 | else if (CONSP (check) |
8e713be6 KR |
454 | && INTEGERP (XCAR (check)) |
455 | && (INTEGERP (XCDR (check)) | |
ede4db72 | 456 | || |
8e713be6 KR |
457 | (CONSP (XCDR (check)) |
458 | && INTEGERP (XCAR (XCDR (check))) | |
459 | && NILP (XCDR (XCDR (check)))))) | |
ede4db72 RS |
460 | return value; |
461 | else | |
462 | return | |
463 | Fsignal (Qerror, | |
a87ed99c | 464 | Fcons (build_string ("invalid data returned by selection-conversion function"), |
ede4db72 RS |
465 | Fcons (handler_fn, Fcons (value, Qnil)))); |
466 | } | |
467 | \f | |
468 | /* Subroutines of x_reply_selection_request. */ | |
469 | ||
5d0ba25b | 470 | /* Send a SelectionNotify event to the requestor with property=None, |
ede4db72 RS |
471 | meaning we were unable to do what they wanted. */ |
472 | ||
473 | static void | |
474 | x_decline_selection_request (event) | |
475 | struct input_event *event; | |
476 | { | |
477 | XSelectionEvent reply; | |
d9c0d4a3 | 478 | int count; |
1b65481e | 479 | |
ede4db72 RS |
480 | reply.type = SelectionNotify; |
481 | reply.display = SELECTION_EVENT_DISPLAY (event); | |
5d0ba25b | 482 | reply.requestor = SELECTION_EVENT_REQUESTOR (event); |
ede4db72 RS |
483 | reply.selection = SELECTION_EVENT_SELECTION (event); |
484 | reply.time = SELECTION_EVENT_TIME (event); | |
485 | reply.target = SELECTION_EVENT_TARGET (event); | |
486 | reply.property = None; | |
487 | ||
d9c0d4a3 GM |
488 | /* The reason for the error may be that the receiver has |
489 | died in the meantime. Handle that case. */ | |
ede4db72 | 490 | BLOCK_INPUT; |
d9c0d4a3 GM |
491 | count = x_catch_errors (reply.display); |
492 | XSendEvent (reply.display, reply.requestor, False, 0L, (XEvent *) &reply); | |
5c3a351a | 493 | XFlush (reply.display); |
d9c0d4a3 | 494 | x_uncatch_errors (reply.display, count); |
ede4db72 RS |
495 | UNBLOCK_INPUT; |
496 | } | |
497 | ||
498 | /* This is the selection request currently being processed. | |
499 | It is set to zero when the request is fully processed. */ | |
500 | static struct input_event *x_selection_current_request; | |
501 | ||
ca29f2b8 GM |
502 | /* Display info in x_selection_request. */ |
503 | ||
504 | static struct x_display_info *selection_request_dpyinfo; | |
505 | ||
ede4db72 | 506 | /* Used as an unwind-protect clause so that, if a selection-converter signals |
2a1a4c9d | 507 | an error, we tell the requester that we were unable to do what they wanted |
ede4db72 RS |
508 | before we throw to top-level or go into the debugger or whatever. */ |
509 | ||
510 | static Lisp_Object | |
511 | x_selection_request_lisp_error (ignore) | |
512 | Lisp_Object ignore; | |
513 | { | |
ca29f2b8 GM |
514 | if (x_selection_current_request != 0 |
515 | && selection_request_dpyinfo->display) | |
ede4db72 RS |
516 | x_decline_selection_request (x_selection_current_request); |
517 | return Qnil; | |
518 | } | |
519 | \f | |
d1f21a66 RS |
520 | |
521 | /* This stuff is so that INCR selections are reentrant (that is, so we can | |
522 | be servicing multiple INCR selection requests simultaneously.) I haven't | |
523 | actually tested that yet. */ | |
524 | ||
525 | /* Keep a list of the property changes that are awaited. */ | |
526 | ||
527 | struct prop_location | |
528 | { | |
529 | int identifier; | |
530 | Display *display; | |
531 | Window window; | |
532 | Atom property; | |
533 | int desired_state; | |
534 | int arrived; | |
535 | struct prop_location *next; | |
536 | }; | |
537 | ||
538 | static struct prop_location *expect_property_change (); | |
539 | static void wait_for_property_change (); | |
540 | static void unexpect_property_change (); | |
541 | static int waiting_for_other_props_on_window (); | |
542 | ||
543 | static int prop_location_identifier; | |
544 | ||
545 | static Lisp_Object property_change_reply; | |
546 | ||
547 | static struct prop_location *property_change_reply_object; | |
548 | ||
549 | static struct prop_location *property_change_wait_list; | |
55b2d45d RS |
550 | |
551 | static Lisp_Object | |
552 | queue_selection_requests_unwind (frame) | |
553 | Lisp_Object frame; | |
554 | { | |
555 | FRAME_PTR f = XFRAME (frame); | |
556 | ||
557 | if (! NILP (frame)) | |
558 | x_stop_queuing_selection_requests (FRAME_X_DISPLAY (f)); | |
ab552306 | 559 | return Qnil; |
55b2d45d RS |
560 | } |
561 | ||
562 | /* Return some frame whose display info is DPYINFO. | |
563 | Return nil if there is none. */ | |
564 | ||
565 | static Lisp_Object | |
566 | some_frame_on_display (dpyinfo) | |
567 | struct x_display_info *dpyinfo; | |
568 | { | |
569 | Lisp_Object list, frame; | |
570 | ||
571 | FOR_EACH_FRAME (list, frame) | |
572 | { | |
573 | if (FRAME_X_DISPLAY_INFO (XFRAME (frame)) == dpyinfo) | |
574 | return frame; | |
575 | } | |
576 | ||
577 | return Qnil; | |
578 | } | |
d1f21a66 | 579 | \f |
ede4db72 RS |
580 | /* Send the reply to a selection request event EVENT. |
581 | TYPE is the type of selection data requested. | |
582 | DATA and SIZE describe the data to send, already converted. | |
583 | FORMAT is the unit-size (in bits) of the data to be transmitted. */ | |
584 | ||
585 | static void | |
586 | x_reply_selection_request (event, format, data, size, type) | |
587 | struct input_event *event; | |
588 | int format, size; | |
589 | unsigned char *data; | |
590 | Atom type; | |
591 | { | |
592 | XSelectionEvent reply; | |
593 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
5d0ba25b | 594 | Window window = SELECTION_EVENT_REQUESTOR (event); |
ede4db72 RS |
595 | int bytes_remaining; |
596 | int format_bytes = format/8; | |
597 | int max_bytes = SELECTION_QUANTUM (display); | |
5c3a351a | 598 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
5a499696 | 599 | int count; |
ede4db72 RS |
600 | |
601 | if (max_bytes > MAX_SELECTION_QUANTUM) | |
602 | max_bytes = MAX_SELECTION_QUANTUM; | |
603 | ||
604 | reply.type = SelectionNotify; | |
605 | reply.display = display; | |
5d0ba25b | 606 | reply.requestor = window; |
ede4db72 RS |
607 | reply.selection = SELECTION_EVENT_SELECTION (event); |
608 | reply.time = SELECTION_EVENT_TIME (event); | |
609 | reply.target = SELECTION_EVENT_TARGET (event); | |
610 | reply.property = SELECTION_EVENT_PROPERTY (event); | |
611 | if (reply.property == None) | |
612 | reply.property = reply.target; | |
613 | ||
614 | /* #### XChangeProperty can generate BadAlloc, and we must handle it! */ | |
afe1529d | 615 | BLOCK_INPUT; |
ad7f9d12 | 616 | count = x_catch_errors (display); |
ede4db72 | 617 | |
ede4db72 RS |
618 | /* Store the data on the requested property. |
619 | If the selection is large, only store the first N bytes of it. | |
620 | */ | |
621 | bytes_remaining = size * format_bytes; | |
622 | if (bytes_remaining <= max_bytes) | |
623 | { | |
624 | /* Send all the data at once, with minimal handshaking. */ | |
d9c0d4a3 | 625 | TRACE1 ("Sending all %d bytes", bytes_remaining); |
ede4db72 RS |
626 | XChangeProperty (display, window, reply.property, type, format, |
627 | PropModeReplace, data, size); | |
628 | /* At this point, the selection was successfully stored; ack it. */ | |
2f65feb6 | 629 | XSendEvent (display, window, False, 0L, (XEvent *) &reply); |
ede4db72 RS |
630 | } |
631 | else | |
632 | { | |
633 | /* Send an INCR selection. */ | |
d1f21a66 | 634 | struct prop_location *wait_object; |
afe1529d | 635 | int had_errors; |
55b2d45d | 636 | Lisp_Object frame; |
ede4db72 | 637 | |
55b2d45d RS |
638 | frame = some_frame_on_display (dpyinfo); |
639 | ||
640 | /* If the display no longer has frames, we can't expect | |
641 | to get many more selection requests from it, so don't | |
642 | bother trying to queue them. */ | |
643 | if (!NILP (frame)) | |
644 | { | |
645 | x_start_queuing_selection_requests (display); | |
646 | ||
647 | record_unwind_protect (queue_selection_requests_unwind, | |
648 | frame); | |
649 | } | |
2f65feb6 | 650 | |
19126e11 | 651 | if (x_window_to_frame (dpyinfo, window)) /* #### debug */ |
606140dd | 652 | error ("Attempt to transfer an INCR to ourself!"); |
1b65481e | 653 | |
d9c0d4a3 GM |
654 | TRACE2 ("Start sending %d bytes incrementally (%s)", |
655 | bytes_remaining, XGetAtomName (display, reply.property)); | |
d1f21a66 RS |
656 | wait_object = expect_property_change (display, window, reply.property, |
657 | PropertyDelete); | |
ede4db72 | 658 | |
d9c0d4a3 GM |
659 | TRACE1 ("Set %s to number of bytes to send", |
660 | XGetAtomName (display, reply.property)); | |
5c3a351a | 661 | XChangeProperty (display, window, reply.property, dpyinfo->Xatom_INCR, |
55b2d45d RS |
662 | 32, PropModeReplace, |
663 | (unsigned char *) &bytes_remaining, 1); | |
ede4db72 | 664 | XSelectInput (display, window, PropertyChangeMask); |
1b65481e | 665 | |
ede4db72 | 666 | /* Tell 'em the INCR data is there... */ |
d9c0d4a3 | 667 | TRACE0 ("Send SelectionNotify event"); |
55b2d45d | 668 | XSendEvent (display, window, False, 0L, (XEvent *) &reply); |
5c3a351a | 669 | XFlush (display); |
afe1529d RS |
670 | |
671 | had_errors = x_had_errors_p (display); | |
2f65feb6 | 672 | UNBLOCK_INPUT; |
ede4db72 | 673 | |
2a1a4c9d | 674 | /* First, wait for the requester to ack by deleting the property. |
ede4db72 | 675 | This can run random lisp code (process handlers) or signal. */ |
afe1529d | 676 | if (! had_errors) |
d9c0d4a3 GM |
677 | { |
678 | TRACE1 ("Waiting for ACK (deletion of %s)", | |
679 | XGetAtomName (display, reply.property)); | |
680 | wait_for_property_change (wait_object); | |
681 | } | |
ede4db72 | 682 | |
d9c0d4a3 | 683 | TRACE0 ("Got ACK"); |
ede4db72 RS |
684 | while (bytes_remaining) |
685 | { | |
686 | int i = ((bytes_remaining < max_bytes) | |
687 | ? bytes_remaining | |
688 | : max_bytes); | |
2f65feb6 RS |
689 | |
690 | BLOCK_INPUT; | |
691 | ||
d1f21a66 RS |
692 | wait_object |
693 | = expect_property_change (display, window, reply.property, | |
694 | PropertyDelete); | |
d9c0d4a3 GM |
695 | |
696 | TRACE1 ("Sending increment of %d bytes", i); | |
697 | TRACE1 ("Set %s to increment data", | |
698 | XGetAtomName (display, reply.property)); | |
1b65481e | 699 | |
ede4db72 RS |
700 | /* Append the next chunk of data to the property. */ |
701 | XChangeProperty (display, window, reply.property, type, format, | |
702 | PropModeAppend, data, i / format_bytes); | |
703 | bytes_remaining -= i; | |
704 | data += i; | |
5c3a351a | 705 | XFlush (display); |
afe1529d | 706 | had_errors = x_had_errors_p (display); |
2f65feb6 | 707 | UNBLOCK_INPUT; |
ede4db72 | 708 | |
afe1529d RS |
709 | if (had_errors) |
710 | break; | |
711 | ||
2a1a4c9d | 712 | /* Now wait for the requester to ack this chunk by deleting the |
d9c0d4a3 GM |
713 | property. This can run random lisp code or signal. */ |
714 | TRACE1 ("Waiting for increment ACK (deletion of %s)", | |
715 | XGetAtomName (display, reply.property)); | |
d1f21a66 | 716 | wait_for_property_change (wait_object); |
ede4db72 | 717 | } |
1b65481e | 718 | |
d9c0d4a3 GM |
719 | /* Now write a zero-length chunk to the property to tell the |
720 | requester that we're done. */ | |
2f65feb6 | 721 | BLOCK_INPUT; |
ede4db72 RS |
722 | if (! waiting_for_other_props_on_window (display, window)) |
723 | XSelectInput (display, window, 0L); | |
724 | ||
d9c0d4a3 GM |
725 | TRACE1 ("Set %s to a 0-length chunk to indicate EOF", |
726 | XGetAtomName (display, reply.property)); | |
ede4db72 RS |
727 | XChangeProperty (display, window, reply.property, type, format, |
728 | PropModeReplace, data, 0); | |
d9c0d4a3 | 729 | TRACE0 ("Done sending incrementally"); |
ede4db72 | 730 | } |
afe1529d | 731 | |
ceabd272 | 732 | /* rms, 2003-01-03: I think I have fixed this bug. */ |
47a6ac17 GM |
733 | /* The window we're communicating with may have been deleted |
734 | in the meantime (that's a real situation from a bug report). | |
735 | In this case, there may be events in the event queue still | |
736 | refering to the deleted window, and we'll get a BadWindow error | |
737 | in XTread_socket when processing the events. I don't have | |
738 | an idea how to fix that. gerd, 2001-01-98. */ | |
afe1529d | 739 | XFlush (display); |
5a499696 | 740 | x_uncatch_errors (display, count); |
afe1529d | 741 | UNBLOCK_INPUT; |
ede4db72 RS |
742 | } |
743 | \f | |
744 | /* Handle a SelectionRequest event EVENT. | |
745 | This is called from keyboard.c when such an event is found in the queue. */ | |
746 | ||
747 | void | |
748 | x_handle_selection_request (event) | |
749 | struct input_event *event; | |
750 | { | |
751 | struct gcpro gcpro1, gcpro2, gcpro3; | |
9d2d1dd8 | 752 | Lisp_Object local_selection_data; |
ede4db72 | 753 | Lisp_Object selection_symbol; |
9d2d1dd8 KH |
754 | Lisp_Object target_symbol; |
755 | Lisp_Object converted_selection; | |
ede4db72 | 756 | Time local_selection_time; |
9d2d1dd8 | 757 | Lisp_Object successful_p; |
ede4db72 | 758 | int count; |
5c3a351a RS |
759 | struct x_display_info *dpyinfo |
760 | = x_display_info_for_display (SELECTION_EVENT_DISPLAY (event)); | |
ede4db72 | 761 | |
9d2d1dd8 KH |
762 | local_selection_data = Qnil; |
763 | target_symbol = Qnil; | |
764 | converted_selection = Qnil; | |
765 | successful_p = Qnil; | |
766 | ||
ede4db72 RS |
767 | GCPRO3 (local_selection_data, converted_selection, target_symbol); |
768 | ||
d9c0d4a3 | 769 | selection_symbol = x_atom_to_symbol (SELECTION_EVENT_DISPLAY (event), |
ede4db72 RS |
770 | SELECTION_EVENT_SELECTION (event)); |
771 | ||
772 | local_selection_data = assq_no_quit (selection_symbol, Vselection_alist); | |
ede4db72 RS |
773 | |
774 | if (NILP (local_selection_data)) | |
775 | { | |
776 | /* Someone asked for the selection, but we don't have it any more. | |
777 | */ | |
778 | x_decline_selection_request (event); | |
779 | goto DONE; | |
780 | } | |
781 | ||
782 | local_selection_time = (Time) | |
8e713be6 | 783 | cons_to_long (XCAR (XCDR (XCDR (local_selection_data)))); |
ede4db72 RS |
784 | |
785 | if (SELECTION_EVENT_TIME (event) != CurrentTime | |
7da64e5c | 786 | && local_selection_time > SELECTION_EVENT_TIME (event)) |
ede4db72 RS |
787 | { |
788 | /* Someone asked for the selection, and we have one, but not the one | |
789 | they're looking for. | |
790 | */ | |
791 | x_decline_selection_request (event); | |
792 | goto DONE; | |
793 | } | |
794 | ||
ede4db72 | 795 | x_selection_current_request = event; |
331379bf | 796 | count = SPECPDL_INDEX (); |
ca29f2b8 | 797 | selection_request_dpyinfo = dpyinfo; |
ede4db72 RS |
798 | record_unwind_protect (x_selection_request_lisp_error, Qnil); |
799 | ||
d9c0d4a3 | 800 | target_symbol = x_atom_to_symbol (SELECTION_EVENT_DISPLAY (event), |
ede4db72 RS |
801 | SELECTION_EVENT_TARGET (event)); |
802 | ||
803 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
804 | if (EQ (target_symbol, QMULTIPLE)) | |
805 | target_symbol = fetch_multiple_target (event); | |
806 | #endif | |
1b65481e | 807 | |
ede4db72 | 808 | /* Convert lisp objects back into binary data */ |
1b65481e | 809 | |
ede4db72 | 810 | converted_selection |
5109c8dd | 811 | = x_get_local_selection (selection_symbol, target_symbol, 0); |
1b65481e | 812 | |
ede4db72 RS |
813 | if (! NILP (converted_selection)) |
814 | { | |
815 | unsigned char *data; | |
816 | unsigned int size; | |
817 | int format; | |
818 | Atom type; | |
aca39f42 RS |
819 | int nofree; |
820 | ||
2f65feb6 RS |
821 | lisp_data_to_selection_data (SELECTION_EVENT_DISPLAY (event), |
822 | converted_selection, | |
aca39f42 | 823 | &data, &type, &size, &format, &nofree); |
1b65481e | 824 | |
ede4db72 RS |
825 | x_reply_selection_request (event, format, data, size, type); |
826 | successful_p = Qt; | |
827 | ||
828 | /* Indicate we have successfully processed this event. */ | |
7da64e5c | 829 | x_selection_current_request = 0; |
ede4db72 | 830 | |
4feb31b2 | 831 | /* Use xfree, not XFree, because lisp_data_to_selection_data |
0158abbc | 832 | calls xmalloc itself. */ |
aca39f42 | 833 | if (!nofree) |
4feb31b2 | 834 | xfree (data); |
ede4db72 RS |
835 | } |
836 | unbind_to (count, Qnil); | |
837 | ||
838 | DONE: | |
839 | ||
840 | UNGCPRO; | |
841 | ||
842 | /* Let random lisp code notice that the selection has been asked for. */ | |
843 | { | |
9d2d1dd8 KH |
844 | Lisp_Object rest; |
845 | rest = Vx_sent_selection_hooks; | |
ede4db72 RS |
846 | if (!EQ (rest, Qunbound)) |
847 | for (; CONSP (rest); rest = Fcdr (rest)) | |
848 | call3 (Fcar (rest), selection_symbol, target_symbol, successful_p); | |
849 | } | |
850 | } | |
851 | \f | |
e18e6130 | 852 | /* Handle a SelectionClear event EVENT, which indicates that some |
ede4db72 RS |
853 | client cleared out our previously asserted selection. |
854 | This is called from keyboard.c when such an event is found in the queue. */ | |
855 | ||
856 | void | |
857 | x_handle_selection_clear (event) | |
858 | struct input_event *event; | |
859 | { | |
860 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
861 | Atom selection = SELECTION_EVENT_SELECTION (event); | |
862 | Time changed_owner_time = SELECTION_EVENT_TIME (event); | |
1b65481e | 863 | |
ede4db72 RS |
864 | Lisp_Object selection_symbol, local_selection_data; |
865 | Time local_selection_time; | |
5c3a351a | 866 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
e18e6130 RS |
867 | struct x_display_info *t_dpyinfo; |
868 | ||
869 | /* If the new selection owner is also Emacs, | |
870 | don't clear the new selection. */ | |
871 | BLOCK_INPUT; | |
872 | /* Check each display on the same terminal, | |
873 | to see if this Emacs job now owns the selection | |
874 | through that display. */ | |
875 | for (t_dpyinfo = x_display_list; t_dpyinfo; t_dpyinfo = t_dpyinfo->next) | |
876 | if (t_dpyinfo->kboard == dpyinfo->kboard) | |
877 | { | |
878 | Window owner_window | |
879 | = XGetSelectionOwner (t_dpyinfo->display, selection); | |
880 | if (x_window_to_frame (t_dpyinfo, owner_window) != 0) | |
881 | { | |
882 | UNBLOCK_INPUT; | |
883 | return; | |
884 | } | |
885 | } | |
886 | UNBLOCK_INPUT; | |
ede4db72 | 887 | |
d9c0d4a3 | 888 | selection_symbol = x_atom_to_symbol (display, selection); |
ede4db72 RS |
889 | |
890 | local_selection_data = assq_no_quit (selection_symbol, Vselection_alist); | |
891 | ||
892 | /* Well, we already believe that we don't own it, so that's just fine. */ | |
893 | if (NILP (local_selection_data)) return; | |
894 | ||
895 | local_selection_time = (Time) | |
8e713be6 | 896 | cons_to_long (XCAR (XCDR (XCDR (local_selection_data)))); |
ede4db72 RS |
897 | |
898 | /* This SelectionClear is for a selection that we no longer own, so we can | |
899 | disregard it. (That is, we have reasserted the selection since this | |
900 | request was generated.) */ | |
901 | ||
902 | if (changed_owner_time != CurrentTime | |
903 | && local_selection_time > changed_owner_time) | |
904 | return; | |
905 | ||
906 | /* Otherwise, we're really honest and truly being told to drop it. | |
907 | Don't use Fdelq as that may QUIT;. */ | |
908 | ||
909 | if (EQ (local_selection_data, Fcar (Vselection_alist))) | |
910 | Vselection_alist = Fcdr (Vselection_alist); | |
911 | else | |
912 | { | |
913 | Lisp_Object rest; | |
914 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) | |
8e713be6 | 915 | if (EQ (local_selection_data, Fcar (XCDR (rest)))) |
ede4db72 | 916 | { |
f3fbd155 | 917 | XSETCDR (rest, Fcdr (XCDR (rest))); |
ede4db72 RS |
918 | break; |
919 | } | |
920 | } | |
921 | ||
922 | /* Let random lisp code notice that the selection has been stolen. */ | |
923 | ||
924 | { | |
d1f21a66 RS |
925 | Lisp_Object rest; |
926 | rest = Vx_lost_selection_hooks; | |
ede4db72 | 927 | if (!EQ (rest, Qunbound)) |
d1f21a66 RS |
928 | { |
929 | for (; CONSP (rest); rest = Fcdr (rest)) | |
930 | call1 (Fcar (rest), selection_symbol); | |
7c6b2ea4 | 931 | prepare_menu_bars (); |
3007ebfb | 932 | redisplay_preserve_echo_area (20); |
d1f21a66 | 933 | } |
ede4db72 RS |
934 | } |
935 | } | |
936 | ||
118bd841 RS |
937 | /* Clear all selections that were made from frame F. |
938 | We do this when about to delete a frame. */ | |
939 | ||
940 | void | |
941 | x_clear_frame_selections (f) | |
942 | FRAME_PTR f; | |
943 | { | |
944 | Lisp_Object frame; | |
945 | Lisp_Object rest; | |
946 | ||
90851bbe | 947 | XSETFRAME (frame, f); |
118bd841 RS |
948 | |
949 | /* Otherwise, we're really honest and truly being told to drop it. | |
950 | Don't use Fdelq as that may QUIT;. */ | |
951 | ||
0d199f9c RS |
952 | /* Delete elements from the beginning of Vselection_alist. */ |
953 | while (!NILP (Vselection_alist) | |
954 | && EQ (frame, Fcar (Fcdr (Fcdr (Fcdr (Fcar (Vselection_alist))))))) | |
955 | { | |
956 | /* Let random Lisp code notice that the selection has been stolen. */ | |
957 | Lisp_Object hooks, selection_symbol; | |
958 | ||
959 | hooks = Vx_lost_selection_hooks; | |
960 | selection_symbol = Fcar (Fcar (Vselection_alist)); | |
961 | ||
962 | if (!EQ (hooks, Qunbound)) | |
963 | { | |
964 | for (; CONSP (hooks); hooks = Fcdr (hooks)) | |
965 | call1 (Fcar (hooks), selection_symbol); | |
996b804d MB |
966 | #if 0 /* This can crash when deleting a frame |
967 | from x_connection_closed. Anyway, it seems unnecessary; | |
968 | something else should cause a redisplay. */ | |
3007ebfb | 969 | redisplay_preserve_echo_area (21); |
996b804d | 970 | #endif |
0d199f9c RS |
971 | } |
972 | ||
973 | Vselection_alist = Fcdr (Vselection_alist); | |
974 | } | |
975 | ||
976 | /* Delete elements after the beginning of Vselection_alist. */ | |
118bd841 | 977 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) |
8e713be6 | 978 | if (EQ (frame, Fcar (Fcdr (Fcdr (Fcdr (Fcar (XCDR (rest)))))))) |
118bd841 RS |
979 | { |
980 | /* Let random Lisp code notice that the selection has been stolen. */ | |
981 | Lisp_Object hooks, selection_symbol; | |
982 | ||
983 | hooks = Vx_lost_selection_hooks; | |
8e713be6 | 984 | selection_symbol = Fcar (Fcar (XCDR (rest))); |
118bd841 RS |
985 | |
986 | if (!EQ (hooks, Qunbound)) | |
987 | { | |
988 | for (; CONSP (hooks); hooks = Fcdr (hooks)) | |
989 | call1 (Fcar (hooks), selection_symbol); | |
996b804d | 990 | #if 0 /* See above */ |
3007ebfb | 991 | redisplay_preserve_echo_area (22); |
996b804d | 992 | #endif |
118bd841 | 993 | } |
f3fbd155 | 994 | XSETCDR (rest, Fcdr (XCDR (rest))); |
118bd841 RS |
995 | break; |
996 | } | |
997 | } | |
ede4db72 | 998 | \f |
ede4db72 RS |
999 | /* Nonzero if any properties for DISPLAY and WINDOW |
1000 | are on the list of what we are waiting for. */ | |
1001 | ||
1002 | static int | |
1003 | waiting_for_other_props_on_window (display, window) | |
1004 | Display *display; | |
1005 | Window window; | |
1006 | { | |
1007 | struct prop_location *rest = property_change_wait_list; | |
1008 | while (rest) | |
1009 | if (rest->display == display && rest->window == window) | |
1010 | return 1; | |
1011 | else | |
1012 | rest = rest->next; | |
1013 | return 0; | |
1014 | } | |
1015 | ||
1016 | /* Add an entry to the list of property changes we are waiting for. | |
1017 | DISPLAY, WINDOW, PROPERTY, STATE describe what we will wait for. | |
1018 | The return value is a number that uniquely identifies | |
1019 | this awaited property change. */ | |
1020 | ||
d1f21a66 | 1021 | static struct prop_location * |
ede4db72 RS |
1022 | expect_property_change (display, window, property, state) |
1023 | Display *display; | |
1024 | Window window; | |
6c070502 | 1025 | Atom property; |
ede4db72 RS |
1026 | int state; |
1027 | { | |
d9c0d4a3 | 1028 | struct prop_location *pl = (struct prop_location *) xmalloc (sizeof *pl); |
2f65feb6 | 1029 | pl->identifier = ++prop_location_identifier; |
ede4db72 RS |
1030 | pl->display = display; |
1031 | pl->window = window; | |
1032 | pl->property = property; | |
1033 | pl->desired_state = state; | |
1034 | pl->next = property_change_wait_list; | |
d1f21a66 | 1035 | pl->arrived = 0; |
ede4db72 | 1036 | property_change_wait_list = pl; |
d1f21a66 | 1037 | return pl; |
ede4db72 RS |
1038 | } |
1039 | ||
1040 | /* Delete an entry from the list of property changes we are waiting for. | |
2f65feb6 | 1041 | IDENTIFIER is the number that uniquely identifies the entry. */ |
ede4db72 RS |
1042 | |
1043 | static void | |
d1f21a66 RS |
1044 | unexpect_property_change (location) |
1045 | struct prop_location *location; | |
ede4db72 RS |
1046 | { |
1047 | struct prop_location *prev = 0, *rest = property_change_wait_list; | |
1048 | while (rest) | |
1049 | { | |
d1f21a66 | 1050 | if (rest == location) |
ede4db72 RS |
1051 | { |
1052 | if (prev) | |
1053 | prev->next = rest->next; | |
1054 | else | |
1055 | property_change_wait_list = rest->next; | |
4feb31b2 | 1056 | xfree (rest); |
ede4db72 RS |
1057 | return; |
1058 | } | |
1059 | prev = rest; | |
1060 | rest = rest->next; | |
1061 | } | |
1062 | } | |
1063 | ||
2f65feb6 RS |
1064 | /* Remove the property change expectation element for IDENTIFIER. */ |
1065 | ||
1066 | static Lisp_Object | |
1067 | wait_for_property_change_unwind (identifierval) | |
1068 | Lisp_Object identifierval; | |
1069 | { | |
c4898489 | 1070 | unexpect_property_change ((struct prop_location *) |
8e713be6 KR |
1071 | (XFASTINT (XCAR (identifierval)) << 16 |
1072 | | XFASTINT (XCDR (identifierval)))); | |
ab552306 | 1073 | return Qnil; |
2f65feb6 RS |
1074 | } |
1075 | ||
ede4db72 | 1076 | /* Actually wait for a property change. |
2f65feb6 | 1077 | IDENTIFIER should be the value that expect_property_change returned. */ |
ede4db72 RS |
1078 | |
1079 | static void | |
d1f21a66 RS |
1080 | wait_for_property_change (location) |
1081 | struct prop_location *location; | |
ede4db72 | 1082 | { |
2f65feb6 | 1083 | int secs, usecs; |
aed13378 | 1084 | int count = SPECPDL_INDEX (); |
d1f21a66 RS |
1085 | Lisp_Object tem; |
1086 | ||
c4898489 | 1087 | tem = Fcons (Qnil, Qnil); |
f3fbd155 KR |
1088 | XSETCARFASTINT (tem, (EMACS_UINT)location >> 16); |
1089 | XSETCDRFASTINT (tem, (EMACS_UINT)location & 0xffff); | |
2f65feb6 RS |
1090 | |
1091 | /* Make sure to do unexpect_property_change if we quit or err. */ | |
d1f21a66 | 1092 | record_unwind_protect (wait_for_property_change_unwind, tem); |
2f65feb6 | 1093 | |
f3fbd155 | 1094 | XSETCAR (property_change_reply, Qnil); |
2f65feb6 | 1095 | |
afe1529d RS |
1096 | property_change_reply_object = location; |
1097 | /* If the event we are waiting for arrives beyond here, it will set | |
1098 | property_change_reply, because property_change_reply_object says so. */ | |
d1f21a66 RS |
1099 | if (! location->arrived) |
1100 | { | |
d1f21a66 RS |
1101 | secs = x_selection_timeout / 1000; |
1102 | usecs = (x_selection_timeout % 1000) * 1000; | |
d9c0d4a3 | 1103 | TRACE2 (" Waiting %d secs, %d usecs", secs, usecs); |
d1f21a66 RS |
1104 | wait_reading_process_input (secs, usecs, property_change_reply, 0); |
1105 | ||
8e713be6 | 1106 | if (NILP (XCAR (property_change_reply))) |
d9c0d4a3 GM |
1107 | { |
1108 | TRACE0 (" Timed out"); | |
1109 | error ("Timed out waiting for property-notify event"); | |
1110 | } | |
d1f21a66 | 1111 | } |
2f65feb6 RS |
1112 | |
1113 | unbind_to (count, Qnil); | |
ede4db72 RS |
1114 | } |
1115 | ||
1116 | /* Called from XTread_socket in response to a PropertyNotify event. */ | |
1117 | ||
1118 | void | |
1119 | x_handle_property_notify (event) | |
1120 | XPropertyEvent *event; | |
1121 | { | |
1122 | struct prop_location *prev = 0, *rest = property_change_wait_list; | |
d9c0d4a3 | 1123 | |
ede4db72 RS |
1124 | while (rest) |
1125 | { | |
1126 | if (rest->property == event->atom | |
1127 | && rest->window == event->window | |
1128 | && rest->display == event->display | |
1129 | && rest->desired_state == event->state) | |
1130 | { | |
d9c0d4a3 GM |
1131 | TRACE2 ("Expected %s of property %s", |
1132 | (event->state == PropertyDelete ? "deletion" : "change"), | |
1133 | XGetAtomName (event->display, event->atom)); | |
ede4db72 | 1134 | |
d1f21a66 RS |
1135 | rest->arrived = 1; |
1136 | ||
ede4db72 RS |
1137 | /* If this is the one wait_for_property_change is waiting for, |
1138 | tell it to wake up. */ | |
d1f21a66 | 1139 | if (rest == property_change_reply_object) |
f3fbd155 | 1140 | XSETCAR (property_change_reply, Qt); |
ede4db72 RS |
1141 | |
1142 | if (prev) | |
1143 | prev->next = rest->next; | |
1144 | else | |
1145 | property_change_wait_list = rest->next; | |
4feb31b2 | 1146 | xfree (rest); |
ede4db72 RS |
1147 | return; |
1148 | } | |
1b65481e | 1149 | |
ede4db72 RS |
1150 | prev = rest; |
1151 | rest = rest->next; | |
1152 | } | |
ede4db72 RS |
1153 | } |
1154 | ||
1155 | ||
1156 | \f | |
1157 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1158 | ||
1159 | static Lisp_Object | |
1160 | fetch_multiple_target (event) | |
1161 | XSelectionRequestEvent *event; | |
1162 | { | |
1163 | Display *display = event->display; | |
5d0ba25b | 1164 | Window window = event->requestor; |
ede4db72 RS |
1165 | Atom target = event->target; |
1166 | Atom selection_atom = event->selection; | |
1167 | int result; | |
1168 | ||
1169 | return | |
1170 | Fcons (QMULTIPLE, | |
1171 | x_get_window_property_as_lisp_data (display, window, target, | |
1172 | QMULTIPLE, selection_atom)); | |
1173 | } | |
1174 | ||
1175 | static Lisp_Object | |
1176 | copy_multiple_data (obj) | |
1177 | Lisp_Object obj; | |
1178 | { | |
1179 | Lisp_Object vec; | |
1180 | int i; | |
1181 | int size; | |
1182 | if (CONSP (obj)) | |
8e713be6 | 1183 | return Fcons (XCAR (obj), copy_multiple_data (XCDR (obj))); |
1b65481e | 1184 | |
b7826503 | 1185 | CHECK_VECTOR (obj); |
ede4db72 RS |
1186 | vec = Fmake_vector (size = XVECTOR (obj)->size, Qnil); |
1187 | for (i = 0; i < size; i++) | |
1188 | { | |
1189 | Lisp_Object vec2 = XVECTOR (obj)->contents [i]; | |
b7826503 | 1190 | CHECK_VECTOR (vec2); |
ede4db72 RS |
1191 | if (XVECTOR (vec2)->size != 2) |
1192 | /* ??? Confusing error message */ | |
1193 | Fsignal (Qerror, Fcons (build_string ("vectors must be of length 2"), | |
1194 | Fcons (vec2, Qnil))); | |
1195 | XVECTOR (vec)->contents [i] = Fmake_vector (2, Qnil); | |
1196 | XVECTOR (XVECTOR (vec)->contents [i])->contents [0] | |
1197 | = XVECTOR (vec2)->contents [0]; | |
1198 | XVECTOR (XVECTOR (vec)->contents [i])->contents [1] | |
1199 | = XVECTOR (vec2)->contents [1]; | |
1200 | } | |
1201 | return vec; | |
1202 | } | |
1203 | ||
1204 | #endif | |
1205 | ||
1206 | \f | |
1207 | /* Variables for communication with x_handle_selection_notify. */ | |
1208 | static Atom reading_which_selection; | |
1209 | static Lisp_Object reading_selection_reply; | |
1210 | static Window reading_selection_window; | |
1211 | ||
1212 | /* Do protocol to read selection-data from the server. | |
1213 | Converts this to Lisp data and returns it. */ | |
1214 | ||
1215 | static Lisp_Object | |
1216 | x_get_foreign_selection (selection_symbol, target_type) | |
1217 | Lisp_Object selection_symbol, target_type; | |
1218 | { | |
378c33ca GM |
1219 | struct frame *sf = SELECTED_FRAME (); |
1220 | Window requestor_window = FRAME_X_WINDOW (sf); | |
1221 | Display *display = FRAME_X_DISPLAY (sf); | |
1222 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
5d0ba25b | 1223 | Time requestor_time = last_event_timestamp; |
5c3a351a RS |
1224 | Atom target_property = dpyinfo->Xatom_EMACS_TMP; |
1225 | Atom selection_atom = symbol_to_x_atom (dpyinfo, display, selection_symbol); | |
ede4db72 | 1226 | Atom type_atom; |
80da0190 | 1227 | int secs, usecs; |
5a499696 | 1228 | int count; |
55b2d45d | 1229 | Lisp_Object frame; |
ede4db72 RS |
1230 | |
1231 | if (CONSP (target_type)) | |
8e713be6 | 1232 | type_atom = symbol_to_x_atom (dpyinfo, display, XCAR (target_type)); |
ede4db72 | 1233 | else |
5c3a351a | 1234 | type_atom = symbol_to_x_atom (dpyinfo, display, target_type); |
ede4db72 RS |
1235 | |
1236 | BLOCK_INPUT; | |
1b65481e | 1237 | |
5a499696 | 1238 | count = x_catch_errors (display); |
1b65481e | 1239 | |
d9c0d4a3 GM |
1240 | TRACE2 ("Get selection %s, type %s", |
1241 | XGetAtomName (display, type_atom), | |
1242 | XGetAtomName (display, target_property)); | |
1243 | ||
ede4db72 | 1244 | XConvertSelection (display, selection_atom, type_atom, target_property, |
5d0ba25b | 1245 | requestor_window, requestor_time); |
5c3a351a | 1246 | XFlush (display); |
ede4db72 RS |
1247 | |
1248 | /* Prepare to block until the reply has been read. */ | |
5d0ba25b | 1249 | reading_selection_window = requestor_window; |
ede4db72 | 1250 | reading_which_selection = selection_atom; |
f3fbd155 | 1251 | XSETCAR (reading_selection_reply, Qnil); |
55b2d45d RS |
1252 | |
1253 | frame = some_frame_on_display (dpyinfo); | |
1254 | ||
1255 | /* If the display no longer has frames, we can't expect | |
1256 | to get many more selection requests from it, so don't | |
1257 | bother trying to queue them. */ | |
1258 | if (!NILP (frame)) | |
1259 | { | |
1260 | x_start_queuing_selection_requests (display); | |
1261 | ||
1262 | record_unwind_protect (queue_selection_requests_unwind, | |
1263 | frame); | |
1264 | } | |
ede4db72 RS |
1265 | UNBLOCK_INPUT; |
1266 | ||
80da0190 RS |
1267 | /* This allows quits. Also, don't wait forever. */ |
1268 | secs = x_selection_timeout / 1000; | |
1269 | usecs = (x_selection_timeout % 1000) * 1000; | |
d9c0d4a3 | 1270 | TRACE1 (" Start waiting %d secs for SelectionNotify", secs); |
80da0190 | 1271 | wait_reading_process_input (secs, usecs, reading_selection_reply, 0); |
d9c0d4a3 | 1272 | TRACE1 (" Got event = %d", !NILP (XCAR (reading_selection_reply))); |
ede4db72 | 1273 | |
7c6b2ea4 | 1274 | BLOCK_INPUT; |
a7b24d46 | 1275 | x_check_errors (display, "Cannot get selection: %s"); |
5a499696 | 1276 | x_uncatch_errors (display, count); |
7c6b2ea4 RS |
1277 | UNBLOCK_INPUT; |
1278 | ||
8e713be6 | 1279 | if (NILP (XCAR (reading_selection_reply))) |
606140dd | 1280 | error ("Timed out waiting for reply from selection owner"); |
8e713be6 | 1281 | if (EQ (XCAR (reading_selection_reply), Qlambda)) |
d5db4077 | 1282 | error ("No `%s' selection", SDATA (SYMBOL_NAME (selection_symbol))); |
ede4db72 RS |
1283 | |
1284 | /* Otherwise, the selection is waiting for us on the requested property. */ | |
1285 | return | |
5d0ba25b | 1286 | x_get_window_property_as_lisp_data (display, requestor_window, |
ede4db72 RS |
1287 | target_property, target_type, |
1288 | selection_atom); | |
1289 | } | |
1290 | \f | |
1291 | /* Subroutines of x_get_window_property_as_lisp_data */ | |
1292 | ||
4feb31b2 | 1293 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1294 | |
ede4db72 RS |
1295 | static void |
1296 | x_get_window_property (display, window, property, data_ret, bytes_ret, | |
1297 | actual_type_ret, actual_format_ret, actual_size_ret, | |
1298 | delete_p) | |
1299 | Display *display; | |
1300 | Window window; | |
1301 | Atom property; | |
1302 | unsigned char **data_ret; | |
1303 | int *bytes_ret; | |
1304 | Atom *actual_type_ret; | |
1305 | int *actual_format_ret; | |
1306 | unsigned long *actual_size_ret; | |
1307 | int delete_p; | |
1308 | { | |
1309 | int total_size; | |
1310 | unsigned long bytes_remaining; | |
1311 | int offset = 0; | |
1312 | unsigned char *tmp_data = 0; | |
1313 | int result; | |
1314 | int buffer_size = SELECTION_QUANTUM (display); | |
1b65481e | 1315 | |
d9c0d4a3 GM |
1316 | if (buffer_size > MAX_SELECTION_QUANTUM) |
1317 | buffer_size = MAX_SELECTION_QUANTUM; | |
1b65481e | 1318 | |
ede4db72 | 1319 | BLOCK_INPUT; |
1b65481e | 1320 | |
ede4db72 RS |
1321 | /* First probe the thing to find out how big it is. */ |
1322 | result = XGetWindowProperty (display, window, property, | |
137edb72 | 1323 | 0L, 0L, False, AnyPropertyType, |
ede4db72 RS |
1324 | actual_type_ret, actual_format_ret, |
1325 | actual_size_ret, | |
1326 | &bytes_remaining, &tmp_data); | |
ede4db72 RS |
1327 | if (result != Success) |
1328 | { | |
2f65feb6 | 1329 | UNBLOCK_INPUT; |
ede4db72 RS |
1330 | *data_ret = 0; |
1331 | *bytes_ret = 0; | |
1332 | return; | |
1333 | } | |
1b65481e | 1334 | |
0158abbc RS |
1335 | /* This was allocated by Xlib, so use XFree. */ |
1336 | XFree ((char *) tmp_data); | |
1b65481e | 1337 | |
ede4db72 RS |
1338 | if (*actual_type_ret == None || *actual_format_ret == 0) |
1339 | { | |
2f65feb6 | 1340 | UNBLOCK_INPUT; |
ede4db72 RS |
1341 | return; |
1342 | } | |
1343 | ||
1344 | total_size = bytes_remaining + 1; | |
1345 | *data_ret = (unsigned char *) xmalloc (total_size); | |
1b65481e | 1346 | |
2a1a4c9d | 1347 | /* Now read, until we've gotten it all. */ |
ede4db72 RS |
1348 | while (bytes_remaining) |
1349 | { | |
d9c0d4a3 | 1350 | #ifdef TRACE_SELECTION |
ede4db72 RS |
1351 | int last = bytes_remaining; |
1352 | #endif | |
1353 | result | |
1354 | = XGetWindowProperty (display, window, property, | |
137edb72 | 1355 | (long)offset/4, (long)buffer_size/4, |
2f65feb6 | 1356 | False, |
ede4db72 RS |
1357 | AnyPropertyType, |
1358 | actual_type_ret, actual_format_ret, | |
1359 | actual_size_ret, &bytes_remaining, &tmp_data); | |
d9c0d4a3 GM |
1360 | |
1361 | TRACE2 ("Read %ld bytes from property %s", | |
1362 | last - bytes_remaining, | |
1363 | XGetAtomName (display, property)); | |
1364 | ||
ede4db72 RS |
1365 | /* If this doesn't return Success at this point, it means that |
1366 | some clod deleted the selection while we were in the midst of | |
d9c0d4a3 GM |
1367 | reading it. Deal with that, I guess.... */ |
1368 | if (result != Success) | |
1369 | break; | |
ede4db72 RS |
1370 | *actual_size_ret *= *actual_format_ret / 8; |
1371 | bcopy (tmp_data, (*data_ret) + offset, *actual_size_ret); | |
1372 | offset += *actual_size_ret; | |
1b65481e | 1373 | |
0158abbc RS |
1374 | /* This was allocated by Xlib, so use XFree. */ |
1375 | XFree ((char *) tmp_data); | |
ede4db72 | 1376 | } |
2f65feb6 | 1377 | |
5c3a351a | 1378 | XFlush (display); |
ede4db72 RS |
1379 | UNBLOCK_INPUT; |
1380 | *bytes_ret = offset; | |
1381 | } | |
1382 | \f | |
4feb31b2 | 1383 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1384 | |
ede4db72 RS |
1385 | static void |
1386 | receive_incremental_selection (display, window, property, target_type, | |
1387 | min_size_bytes, data_ret, size_bytes_ret, | |
1388 | type_ret, format_ret, size_ret) | |
1389 | Display *display; | |
1390 | Window window; | |
1391 | Atom property; | |
1392 | Lisp_Object target_type; /* for error messages only */ | |
1393 | unsigned int min_size_bytes; | |
1394 | unsigned char **data_ret; | |
1395 | int *size_bytes_ret; | |
1396 | Atom *type_ret; | |
1397 | unsigned long *size_ret; | |
1398 | int *format_ret; | |
1399 | { | |
1400 | int offset = 0; | |
d1f21a66 | 1401 | struct prop_location *wait_object; |
ede4db72 RS |
1402 | *size_bytes_ret = min_size_bytes; |
1403 | *data_ret = (unsigned char *) xmalloc (*size_bytes_ret); | |
d9c0d4a3 GM |
1404 | |
1405 | TRACE1 ("Read %d bytes incrementally", min_size_bytes); | |
2f65feb6 RS |
1406 | |
1407 | /* At this point, we have read an INCR property. | |
1408 | Delete the property to ack it. | |
1409 | (But first, prepare to receive the next event in this handshake.) | |
ede4db72 RS |
1410 | |
1411 | Now, we must loop, waiting for the sending window to put a value on | |
1412 | that property, then reading the property, then deleting it to ack. | |
1413 | We are done when the sender places a property of length 0. | |
1414 | */ | |
2f65feb6 RS |
1415 | BLOCK_INPUT; |
1416 | XSelectInput (display, window, STANDARD_EVENT_SET | PropertyChangeMask); | |
d9c0d4a3 GM |
1417 | TRACE1 (" Delete property %s", |
1418 | XSYMBOL (x_atom_to_symbol (display, property))->name->data); | |
2f65feb6 | 1419 | XDeleteProperty (display, window, property); |
d9c0d4a3 GM |
1420 | TRACE1 (" Expect new value of property %s", |
1421 | XSYMBOL (x_atom_to_symbol (display, property))->name->data); | |
d1f21a66 RS |
1422 | wait_object = expect_property_change (display, window, property, |
1423 | PropertyNewValue); | |
5c3a351a | 1424 | XFlush (display); |
2f65feb6 RS |
1425 | UNBLOCK_INPUT; |
1426 | ||
ede4db72 RS |
1427 | while (1) |
1428 | { | |
1429 | unsigned char *tmp_data; | |
1430 | int tmp_size_bytes; | |
d9c0d4a3 GM |
1431 | |
1432 | TRACE0 (" Wait for property change"); | |
d1f21a66 | 1433 | wait_for_property_change (wait_object); |
1b65481e | 1434 | |
ede4db72 | 1435 | /* expect it again immediately, because x_get_window_property may |
2a1a4c9d | 1436 | .. no it won't, I don't get it. |
d9c0d4a3 GM |
1437 | .. Ok, I get it now, the Xt code that implements INCR is broken. */ |
1438 | TRACE0 (" Get property value"); | |
ede4db72 RS |
1439 | x_get_window_property (display, window, property, |
1440 | &tmp_data, &tmp_size_bytes, | |
1441 | type_ret, format_ret, size_ret, 1); | |
1442 | ||
d9c0d4a3 GM |
1443 | TRACE1 (" Read increment of %d bytes", tmp_size_bytes); |
1444 | ||
ede4db72 RS |
1445 | if (tmp_size_bytes == 0) /* we're done */ |
1446 | { | |
d9c0d4a3 GM |
1447 | TRACE0 ("Done reading incrementally"); |
1448 | ||
2f65feb6 RS |
1449 | if (! waiting_for_other_props_on_window (display, window)) |
1450 | XSelectInput (display, window, STANDARD_EVENT_SET); | |
d1f21a66 | 1451 | unexpect_property_change (wait_object); |
4feb31b2 | 1452 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1453 | calls xmalloc itself. */ |
4feb31b2 | 1454 | if (tmp_data) xfree (tmp_data); |
ede4db72 RS |
1455 | break; |
1456 | } | |
2f65feb6 RS |
1457 | |
1458 | BLOCK_INPUT; | |
d9c0d4a3 GM |
1459 | TRACE1 (" ACK by deleting property %s", |
1460 | XGetAtomName (display, property)); | |
2f65feb6 | 1461 | XDeleteProperty (display, window, property); |
d1f21a66 RS |
1462 | wait_object = expect_property_change (display, window, property, |
1463 | PropertyNewValue); | |
5c3a351a | 1464 | XFlush (display); |
2f65feb6 RS |
1465 | UNBLOCK_INPUT; |
1466 | ||
ede4db72 RS |
1467 | if (*size_bytes_ret < offset + tmp_size_bytes) |
1468 | { | |
ede4db72 RS |
1469 | *size_bytes_ret = offset + tmp_size_bytes; |
1470 | *data_ret = (unsigned char *) xrealloc (*data_ret, *size_bytes_ret); | |
1471 | } | |
1b65481e | 1472 | |
018cfa07 | 1473 | bcopy (tmp_data, (*data_ret) + offset, tmp_size_bytes); |
ede4db72 | 1474 | offset += tmp_size_bytes; |
1b65481e | 1475 | |
4feb31b2 | 1476 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1477 | calls xmalloc itself. */ |
4feb31b2 | 1478 | xfree (tmp_data); |
ede4db72 RS |
1479 | } |
1480 | } | |
d9c0d4a3 | 1481 | |
ede4db72 RS |
1482 | \f |
1483 | /* Once a requested selection is "ready" (we got a SelectionNotify event), | |
1484 | fetch value from property PROPERTY of X window WINDOW on display DISPLAY. | |
1485 | TARGET_TYPE and SELECTION_ATOM are used in error message if this fails. */ | |
1486 | ||
1487 | static Lisp_Object | |
1488 | x_get_window_property_as_lisp_data (display, window, property, target_type, | |
1489 | selection_atom) | |
1490 | Display *display; | |
1491 | Window window; | |
1492 | Atom property; | |
1493 | Lisp_Object target_type; /* for error messages only */ | |
1494 | Atom selection_atom; /* for error messages only */ | |
1495 | { | |
1496 | Atom actual_type; | |
1497 | int actual_format; | |
1498 | unsigned long actual_size; | |
1499 | unsigned char *data = 0; | |
1500 | int bytes = 0; | |
1501 | Lisp_Object val; | |
5c3a351a | 1502 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 | 1503 | |
d9c0d4a3 GM |
1504 | TRACE0 ("Reading selection data"); |
1505 | ||
ede4db72 RS |
1506 | x_get_window_property (display, window, property, &data, &bytes, |
1507 | &actual_type, &actual_format, &actual_size, 1); | |
1508 | if (! data) | |
1509 | { | |
1510 | int there_is_a_selection_owner; | |
1511 | BLOCK_INPUT; | |
1512 | there_is_a_selection_owner | |
1513 | = XGetSelectionOwner (display, selection_atom); | |
1514 | UNBLOCK_INPUT; | |
5a499696 RS |
1515 | Fsignal (Qerror, |
1516 | there_is_a_selection_owner | |
1517 | ? Fcons (build_string ("selection owner couldn't convert"), | |
ede4db72 RS |
1518 | actual_type |
1519 | ? Fcons (target_type, | |
d9c0d4a3 | 1520 | Fcons (x_atom_to_symbol (display, |
5c3a351a | 1521 | actual_type), |
ede4db72 RS |
1522 | Qnil)) |
1523 | : Fcons (target_type, Qnil)) | |
5a499696 | 1524 | : Fcons (build_string ("no selection"), |
d9c0d4a3 | 1525 | Fcons (x_atom_to_symbol (display, |
5a499696 RS |
1526 | selection_atom), |
1527 | Qnil))); | |
ede4db72 | 1528 | } |
1b65481e | 1529 | |
5c3a351a | 1530 | if (actual_type == dpyinfo->Xatom_INCR) |
ede4db72 RS |
1531 | { |
1532 | /* That wasn't really the data, just the beginning. */ | |
1533 | ||
1534 | unsigned int min_size_bytes = * ((unsigned int *) data); | |
1535 | BLOCK_INPUT; | |
4feb31b2 | 1536 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1537 | calls xmalloc itself. */ |
4feb31b2 | 1538 | xfree ((char *) data); |
ede4db72 RS |
1539 | UNBLOCK_INPUT; |
1540 | receive_incremental_selection (display, window, property, target_type, | |
1541 | min_size_bytes, &data, &bytes, | |
1542 | &actual_type, &actual_format, | |
1543 | &actual_size); | |
1544 | } | |
1545 | ||
2f65feb6 | 1546 | BLOCK_INPUT; |
d9c0d4a3 | 1547 | TRACE1 (" Delete property %s", XGetAtomName (display, property)); |
2f65feb6 | 1548 | XDeleteProperty (display, window, property); |
5c3a351a | 1549 | XFlush (display); |
2f65feb6 RS |
1550 | UNBLOCK_INPUT; |
1551 | ||
ede4db72 RS |
1552 | /* It's been read. Now convert it to a lisp object in some semi-rational |
1553 | manner. */ | |
1554 | val = selection_data_to_lisp_data (display, data, bytes, | |
1555 | actual_type, actual_format); | |
1b65481e | 1556 | |
4feb31b2 | 1557 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1558 | calls xmalloc itself. */ |
4feb31b2 | 1559 | xfree ((char *) data); |
ede4db72 RS |
1560 | return val; |
1561 | } | |
1562 | \f | |
1563 | /* These functions convert from the selection data read from the server into | |
1564 | something that we can use from Lisp, and vice versa. | |
1565 | ||
1566 | Type: Format: Size: Lisp Type: | |
1567 | ----- ------- ----- ----------- | |
1568 | * 8 * String | |
1569 | ATOM 32 1 Symbol | |
1570 | ATOM 32 > 1 Vector of Symbols | |
1571 | * 16 1 Integer | |
1572 | * 16 > 1 Vector of Integers | |
1573 | * 32 1 if <=16 bits: Integer | |
1574 | if > 16 bits: Cons of top16, bot16 | |
1575 | * 32 > 1 Vector of the above | |
1576 | ||
1577 | When converting a Lisp number to C, it is assumed to be of format 16 if | |
1578 | it is an integer, and of format 32 if it is a cons of two integers. | |
1579 | ||
1580 | When converting a vector of numbers from Lisp to C, it is assumed to be | |
1581 | of format 16 if every element in the vector is an integer, and is assumed | |
1582 | to be of format 32 if any element is a cons of two integers. | |
1583 | ||
1584 | When converting an object to C, it may be of the form (SYMBOL . <data>) | |
1585 | where SYMBOL is what we should claim that the type is. Format and | |
1586 | representation are as above. */ | |
1587 | ||
1588 | ||
1589 | ||
1590 | static Lisp_Object | |
1591 | selection_data_to_lisp_data (display, data, size, type, format) | |
1592 | Display *display; | |
1593 | unsigned char *data; | |
1594 | Atom type; | |
1595 | int size, format; | |
1596 | { | |
5c3a351a | 1597 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 | 1598 | |
5c3a351a | 1599 | if (type == dpyinfo->Xatom_NULL) |
ede4db72 RS |
1600 | return QNULL; |
1601 | ||
1602 | /* Convert any 8-bit data to a string, for compactness. */ | |
1603 | else if (format == 8) | |
e6c7c988 KH |
1604 | { |
1605 | Lisp_Object str; | |
f78da51e KH |
1606 | int require_encoding = 0; |
1607 | ||
d24e26b1 RS |
1608 | if ( |
1609 | #if 1 | |
1610 | 1 | |
1611 | #else | |
1612 | ! NILP (buffer_defaults.enable_multibyte_characters) | |
1613 | #endif | |
1614 | ) | |
f78da51e | 1615 | { |
5faa9b45 KH |
1616 | /* If TYPE is `TEXT' or `COMPOUND_TEXT', we should decode |
1617 | DATA to Emacs internal format because DATA may be encoded | |
1618 | in compound text format. In addtion, if TYPE is `STRING' | |
1619 | and DATA contains any 8-bit Latin-1 code, we should also | |
1620 | decode it. */ | |
1621 | if (type == dpyinfo->Xatom_TEXT | |
1622 | || type == dpyinfo->Xatom_COMPOUND_TEXT) | |
1623 | require_encoding = 1; | |
1624 | else if (type == XA_STRING) | |
f78da51e | 1625 | { |
5faa9b45 KH |
1626 | int i; |
1627 | for (i = 0; i < size; i++) | |
f78da51e | 1628 | { |
5faa9b45 KH |
1629 | if (data[i] >= 0x80) |
1630 | { | |
1631 | require_encoding = 1; | |
1632 | break; | |
1633 | } | |
f78da51e KH |
1634 | } |
1635 | } | |
1636 | } | |
1637 | if (!require_encoding) | |
061bda8d KH |
1638 | { |
1639 | str = make_unibyte_string ((char *) data, size); | |
1640 | Vlast_coding_system_used = Qraw_text; | |
1641 | } | |
e6c7c988 KH |
1642 | else |
1643 | { | |
9391d06a | 1644 | int bufsize; |
e6c7c988 KH |
1645 | unsigned char *buf; |
1646 | struct coding_system coding; | |
e6c7c988 | 1647 | |
16cd5029 KH |
1648 | if (NILP (Vnext_selection_coding_system)) |
1649 | Vnext_selection_coding_system = Vselection_coding_system; | |
2584c9ec | 1650 | setup_coding_system |
16cd5029 | 1651 | (Fcheck_coding_system(Vnext_selection_coding_system), &coding); |
9846d9db KH |
1652 | coding.src_multibyte = 0; |
1653 | coding.dst_multibyte = 1; | |
16cd5029 | 1654 | Vnext_selection_coding_system = Qnil; |
9391d06a | 1655 | coding.mode |= CODING_MODE_LAST_BLOCK; |
e1885335 KH |
1656 | /* We explicitely disable composition handling because |
1657 | selection data should not contain any composition | |
1658 | sequence. */ | |
1659 | coding.composing = COMPOSITION_DISABLED; | |
e6c7c988 KH |
1660 | bufsize = decoding_buffer_size (&coding, size); |
1661 | buf = (unsigned char *) xmalloc (bufsize); | |
9391d06a | 1662 | decode_coding (&coding, data, buf, size, bufsize); |
9846d9db KH |
1663 | str = make_string_from_bytes ((char *) buf, |
1664 | coding.produced_char, coding.produced); | |
4feb31b2 | 1665 | xfree (buf); |
fbbe0ace EZ |
1666 | |
1667 | if (SYMBOLP (coding.post_read_conversion) | |
1668 | && !NILP (Ffboundp (coding.post_read_conversion))) | |
ecb7ac21 | 1669 | str = run_pre_post_conversion_on_str (str, &coding, 0); |
061bda8d | 1670 | Vlast_coding_system_used = coding.symbol; |
e6c7c988 | 1671 | } |
d5db4077 | 1672 | compose_chars_in_text (0, SCHARS (str), str); |
e6c7c988 KH |
1673 | return str; |
1674 | } | |
ede4db72 RS |
1675 | /* Convert a single atom to a Lisp_Symbol. Convert a set of atoms to |
1676 | a vector of symbols. | |
1677 | */ | |
1678 | else if (type == XA_ATOM) | |
1679 | { | |
1680 | int i; | |
1681 | if (size == sizeof (Atom)) | |
d9c0d4a3 | 1682 | return x_atom_to_symbol (display, *((Atom *) data)); |
ede4db72 RS |
1683 | else |
1684 | { | |
e607a484 RS |
1685 | Lisp_Object v = Fmake_vector (make_number (size / sizeof (Atom)), |
1686 | make_number (0)); | |
ede4db72 | 1687 | for (i = 0; i < size / sizeof (Atom); i++) |
e607a484 | 1688 | Faset (v, make_number (i), |
d9c0d4a3 | 1689 | x_atom_to_symbol (display, ((Atom *) data) [i])); |
ede4db72 RS |
1690 | return v; |
1691 | } | |
1692 | } | |
1693 | ||
1694 | /* Convert a single 16 or small 32 bit number to a Lisp_Int. | |
1695 | If the number is > 16 bits, convert it to a cons of integers, | |
1696 | 16 bits in each half. | |
1697 | */ | |
2f51feb8 AS |
1698 | else if (format == 32 && size == sizeof (int)) |
1699 | return long_to_cons (((unsigned int *) data) [0]); | |
ede4db72 RS |
1700 | else if (format == 16 && size == sizeof (short)) |
1701 | return make_number ((int) (((unsigned short *) data) [0])); | |
1702 | ||
1703 | /* Convert any other kind of data to a vector of numbers, represented | |
1704 | as above (as an integer, or a cons of two 16 bit integers.) | |
1705 | */ | |
1706 | else if (format == 16) | |
1707 | { | |
1708 | int i; | |
937a3875 RS |
1709 | Lisp_Object v; |
1710 | v = Fmake_vector (make_number (size / 2), make_number (0)); | |
1711 | for (i = 0; i < size / 2; i++) | |
ede4db72 RS |
1712 | { |
1713 | int j = (int) ((unsigned short *) data) [i]; | |
e607a484 | 1714 | Faset (v, make_number (i), make_number (j)); |
ede4db72 RS |
1715 | } |
1716 | return v; | |
1717 | } | |
1718 | else | |
1719 | { | |
1720 | int i; | |
e607a484 | 1721 | Lisp_Object v = Fmake_vector (make_number (size / 4), make_number (0)); |
ede4db72 RS |
1722 | for (i = 0; i < size / 4; i++) |
1723 | { | |
2f51feb8 | 1724 | unsigned int j = ((unsigned int *) data) [i]; |
e607a484 | 1725 | Faset (v, make_number (i), long_to_cons (j)); |
ede4db72 RS |
1726 | } |
1727 | return v; | |
1728 | } | |
1729 | } | |
1730 | ||
1731 | ||
4feb31b2 | 1732 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1733 | |
ede4db72 RS |
1734 | static void |
1735 | lisp_data_to_selection_data (display, obj, | |
aca39f42 RS |
1736 | data_ret, type_ret, size_ret, |
1737 | format_ret, nofree_ret) | |
ede4db72 RS |
1738 | Display *display; |
1739 | Lisp_Object obj; | |
1740 | unsigned char **data_ret; | |
1741 | Atom *type_ret; | |
1742 | unsigned int *size_ret; | |
1743 | int *format_ret; | |
aca39f42 | 1744 | int *nofree_ret; |
ede4db72 RS |
1745 | { |
1746 | Lisp_Object type = Qnil; | |
5c3a351a | 1747 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
aca39f42 RS |
1748 | |
1749 | *nofree_ret = 0; | |
1750 | ||
8e713be6 | 1751 | if (CONSP (obj) && SYMBOLP (XCAR (obj))) |
ede4db72 | 1752 | { |
8e713be6 KR |
1753 | type = XCAR (obj); |
1754 | obj = XCDR (obj); | |
1755 | if (CONSP (obj) && NILP (XCDR (obj))) | |
1756 | obj = XCAR (obj); | |
ede4db72 RS |
1757 | } |
1758 | ||
1759 | if (EQ (obj, QNULL) || (EQ (type, QNULL))) | |
1760 | { /* This is not the same as declining */ | |
1761 | *format_ret = 32; | |
1762 | *size_ret = 0; | |
1763 | *data_ret = 0; | |
1764 | type = QNULL; | |
1765 | } | |
1766 | else if (STRINGP (obj)) | |
1767 | { | |
5109c8dd | 1768 | xassert (! STRING_MULTIBYTE (obj)); |
7b9ae523 | 1769 | if (NILP (type)) |
5109c8dd KH |
1770 | type = QSTRING; |
1771 | *format_ret = 8; | |
1772 | *size_ret = SBYTES (obj); | |
1773 | *data_ret = SDATA (obj); | |
1774 | *nofree_ret = 1; | |
ede4db72 RS |
1775 | } |
1776 | else if (SYMBOLP (obj)) | |
1777 | { | |
1778 | *format_ret = 32; | |
1779 | *size_ret = 1; | |
1780 | *data_ret = (unsigned char *) xmalloc (sizeof (Atom) + 1); | |
1781 | (*data_ret) [sizeof (Atom)] = 0; | |
5c3a351a | 1782 | (*(Atom **) data_ret) [0] = symbol_to_x_atom (dpyinfo, display, obj); |
ede4db72 RS |
1783 | if (NILP (type)) type = QATOM; |
1784 | } | |
7da64e5c | 1785 | else if (INTEGERP (obj) |
ede4db72 RS |
1786 | && XINT (obj) < 0xFFFF |
1787 | && XINT (obj) > -0xFFFF) | |
1788 | { | |
1789 | *format_ret = 16; | |
1790 | *size_ret = 1; | |
1791 | *data_ret = (unsigned char *) xmalloc (sizeof (short) + 1); | |
1792 | (*data_ret) [sizeof (short)] = 0; | |
1793 | (*(short **) data_ret) [0] = (short) XINT (obj); | |
1794 | if (NILP (type)) type = QINTEGER; | |
1795 | } | |
a87ed99c | 1796 | else if (INTEGERP (obj) |
8e713be6 KR |
1797 | || (CONSP (obj) && INTEGERP (XCAR (obj)) |
1798 | && (INTEGERP (XCDR (obj)) | |
1799 | || (CONSP (XCDR (obj)) | |
1800 | && INTEGERP (XCAR (XCDR (obj))))))) | |
ede4db72 RS |
1801 | { |
1802 | *format_ret = 32; | |
1803 | *size_ret = 1; | |
1804 | *data_ret = (unsigned char *) xmalloc (sizeof (long) + 1); | |
1805 | (*data_ret) [sizeof (long)] = 0; | |
1806 | (*(unsigned long **) data_ret) [0] = cons_to_long (obj); | |
1807 | if (NILP (type)) type = QINTEGER; | |
1808 | } | |
1809 | else if (VECTORP (obj)) | |
1810 | { | |
1811 | /* Lisp_Vectors may represent a set of ATOMs; | |
1812 | a set of 16 or 32 bit INTEGERs; | |
1813 | or a set of ATOM_PAIRs (represented as [[A1 A2] [A3 A4] ...] | |
1814 | */ | |
1815 | int i; | |
1816 | ||
1817 | if (SYMBOLP (XVECTOR (obj)->contents [0])) | |
1818 | /* This vector is an ATOM set */ | |
1819 | { | |
1820 | if (NILP (type)) type = QATOM; | |
1821 | *size_ret = XVECTOR (obj)->size; | |
1822 | *format_ret = 32; | |
1823 | *data_ret = (unsigned char *) xmalloc ((*size_ret) * sizeof (Atom)); | |
1824 | for (i = 0; i < *size_ret; i++) | |
1825 | if (SYMBOLP (XVECTOR (obj)->contents [i])) | |
1826 | (*(Atom **) data_ret) [i] | |
5c3a351a | 1827 | = symbol_to_x_atom (dpyinfo, display, XVECTOR (obj)->contents [i]); |
ede4db72 RS |
1828 | else |
1829 | Fsignal (Qerror, /* Qselection_error */ | |
1830 | Fcons (build_string | |
1831 | ("all elements of selection vector must have same type"), | |
1832 | Fcons (obj, Qnil))); | |
1833 | } | |
1834 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1835 | else if (VECTORP (XVECTOR (obj)->contents [0])) | |
1836 | /* This vector is an ATOM_PAIR set */ | |
1837 | { | |
1838 | if (NILP (type)) type = QATOM_PAIR; | |
1839 | *size_ret = XVECTOR (obj)->size; | |
1840 | *format_ret = 32; | |
1841 | *data_ret = (unsigned char *) | |
1842 | xmalloc ((*size_ret) * sizeof (Atom) * 2); | |
1843 | for (i = 0; i < *size_ret; i++) | |
1844 | if (VECTORP (XVECTOR (obj)->contents [i])) | |
1845 | { | |
1846 | Lisp_Object pair = XVECTOR (obj)->contents [i]; | |
1847 | if (XVECTOR (pair)->size != 2) | |
1848 | Fsignal (Qerror, | |
1b65481e | 1849 | Fcons (build_string |
ede4db72 RS |
1850 | ("elements of the vector must be vectors of exactly two elements"), |
1851 | Fcons (pair, Qnil))); | |
1b65481e | 1852 | |
ede4db72 | 1853 | (*(Atom **) data_ret) [i * 2] |
5c3a351a RS |
1854 | = symbol_to_x_atom (dpyinfo, display, |
1855 | XVECTOR (pair)->contents [0]); | |
ede4db72 | 1856 | (*(Atom **) data_ret) [(i * 2) + 1] |
5c3a351a RS |
1857 | = symbol_to_x_atom (dpyinfo, display, |
1858 | XVECTOR (pair)->contents [1]); | |
ede4db72 RS |
1859 | } |
1860 | else | |
1861 | Fsignal (Qerror, | |
1862 | Fcons (build_string | |
1863 | ("all elements of the vector must be of the same type"), | |
1864 | Fcons (obj, Qnil))); | |
1b65481e | 1865 | |
ede4db72 RS |
1866 | } |
1867 | #endif | |
1868 | else | |
1869 | /* This vector is an INTEGER set, or something like it */ | |
1870 | { | |
1871 | *size_ret = XVECTOR (obj)->size; | |
1872 | if (NILP (type)) type = QINTEGER; | |
1873 | *format_ret = 16; | |
1874 | for (i = 0; i < *size_ret; i++) | |
1875 | if (CONSP (XVECTOR (obj)->contents [i])) | |
1876 | *format_ret = 32; | |
7da64e5c | 1877 | else if (!INTEGERP (XVECTOR (obj)->contents [i])) |
ede4db72 RS |
1878 | Fsignal (Qerror, /* Qselection_error */ |
1879 | Fcons (build_string | |
1880 | ("elements of selection vector must be integers or conses of integers"), | |
1881 | Fcons (obj, Qnil))); | |
1882 | ||
1883 | *data_ret = (unsigned char *) xmalloc (*size_ret * (*format_ret/8)); | |
1884 | for (i = 0; i < *size_ret; i++) | |
1885 | if (*format_ret == 32) | |
1886 | (*((unsigned long **) data_ret)) [i] | |
1887 | = cons_to_long (XVECTOR (obj)->contents [i]); | |
1888 | else | |
1889 | (*((unsigned short **) data_ret)) [i] | |
1890 | = (unsigned short) cons_to_long (XVECTOR (obj)->contents [i]); | |
1891 | } | |
1892 | } | |
1893 | else | |
1894 | Fsignal (Qerror, /* Qselection_error */ | |
1895 | Fcons (build_string ("unrecognised selection data"), | |
1896 | Fcons (obj, Qnil))); | |
1897 | ||
5c3a351a | 1898 | *type_ret = symbol_to_x_atom (dpyinfo, display, type); |
ede4db72 RS |
1899 | } |
1900 | ||
1901 | static Lisp_Object | |
1902 | clean_local_selection_data (obj) | |
1903 | Lisp_Object obj; | |
1904 | { | |
1905 | if (CONSP (obj) | |
8e713be6 KR |
1906 | && INTEGERP (XCAR (obj)) |
1907 | && CONSP (XCDR (obj)) | |
1908 | && INTEGERP (XCAR (XCDR (obj))) | |
1909 | && NILP (XCDR (XCDR (obj)))) | |
1910 | obj = Fcons (XCAR (obj), XCDR (obj)); | |
ede4db72 RS |
1911 | |
1912 | if (CONSP (obj) | |
8e713be6 KR |
1913 | && INTEGERP (XCAR (obj)) |
1914 | && INTEGERP (XCDR (obj))) | |
ede4db72 | 1915 | { |
8e713be6 KR |
1916 | if (XINT (XCAR (obj)) == 0) |
1917 | return XCDR (obj); | |
1918 | if (XINT (XCAR (obj)) == -1) | |
1919 | return make_number (- XINT (XCDR (obj))); | |
ede4db72 RS |
1920 | } |
1921 | if (VECTORP (obj)) | |
1922 | { | |
1923 | int i; | |
1924 | int size = XVECTOR (obj)->size; | |
1925 | Lisp_Object copy; | |
1926 | if (size == 1) | |
1927 | return clean_local_selection_data (XVECTOR (obj)->contents [0]); | |
e607a484 | 1928 | copy = Fmake_vector (make_number (size), Qnil); |
ede4db72 RS |
1929 | for (i = 0; i < size; i++) |
1930 | XVECTOR (copy)->contents [i] | |
1931 | = clean_local_selection_data (XVECTOR (obj)->contents [i]); | |
1932 | return copy; | |
1933 | } | |
1934 | return obj; | |
1935 | } | |
1936 | \f | |
1937 | /* Called from XTread_socket to handle SelectionNotify events. | |
606140dd KH |
1938 | If it's the selection we are waiting for, stop waiting |
1939 | by setting the car of reading_selection_reply to non-nil. | |
1940 | We store t there if the reply is successful, lambda if not. */ | |
ede4db72 RS |
1941 | |
1942 | void | |
1943 | x_handle_selection_notify (event) | |
1944 | XSelectionEvent *event; | |
1945 | { | |
5d0ba25b | 1946 | if (event->requestor != reading_selection_window) |
ede4db72 RS |
1947 | return; |
1948 | if (event->selection != reading_which_selection) | |
1949 | return; | |
1950 | ||
d9c0d4a3 | 1951 | TRACE0 ("Received SelectionNotify"); |
f3fbd155 KR |
1952 | XSETCAR (reading_selection_reply, |
1953 | (event->property != 0 ? Qt : Qlambda)); | |
ede4db72 RS |
1954 | } |
1955 | ||
1956 | \f | |
a0d76c27 | 1957 | DEFUN ("x-own-selection-internal", Fx_own_selection_internal, |
8c1a1077 PJ |
1958 | Sx_own_selection_internal, 2, 2, 0, |
1959 | doc: /* Assert an X selection of the given TYPE with the given VALUE. | |
1960 | TYPE is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
1961 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
1962 | VALUE is typically a string, or a cons of two markers, but may be | |
1963 | anything that the functions on `selection-converter-alist' know about. */) | |
1964 | (selection_name, selection_value) | |
ede4db72 RS |
1965 | Lisp_Object selection_name, selection_value; |
1966 | { | |
703e0710 | 1967 | check_x (); |
b7826503 | 1968 | CHECK_SYMBOL (selection_name); |
606140dd | 1969 | if (NILP (selection_value)) error ("selection-value may not be nil"); |
ede4db72 RS |
1970 | x_own_selection (selection_name, selection_value); |
1971 | return selection_value; | |
1972 | } | |
1973 | ||
1974 | ||
1975 | /* Request the selection value from the owner. If we are the owner, | |
1976 | simply return our selection value. If we are not the owner, this | |
1977 | will block until all of the data has arrived. */ | |
1978 | ||
a0d76c27 | 1979 | DEFUN ("x-get-selection-internal", Fx_get_selection_internal, |
8c1a1077 PJ |
1980 | Sx_get_selection_internal, 2, 2, 0, |
1981 | doc: /* Return text selected from some X window. | |
1982 | SELECTION is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
1983 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
1984 | TYPE is the type of data desired, typically `STRING'. */) | |
1985 | (selection_symbol, target_type) | |
ede4db72 RS |
1986 | Lisp_Object selection_symbol, target_type; |
1987 | { | |
1988 | Lisp_Object val = Qnil; | |
1989 | struct gcpro gcpro1, gcpro2; | |
1990 | GCPRO2 (target_type, val); /* we store newly consed data into these */ | |
703e0710 | 1991 | check_x (); |
b7826503 | 1992 | CHECK_SYMBOL (selection_symbol); |
ede4db72 RS |
1993 | |
1994 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1995 | if (CONSP (target_type) | |
8e713be6 | 1996 | && XCAR (target_type) == QMULTIPLE) |
ede4db72 | 1997 | { |
b7826503 | 1998 | CHECK_VECTOR (XCDR (target_type)); |
ede4db72 RS |
1999 | /* So we don't destructively modify this... */ |
2000 | target_type = copy_multiple_data (target_type); | |
2001 | } | |
2002 | else | |
2003 | #endif | |
b7826503 | 2004 | CHECK_SYMBOL (target_type); |
ede4db72 | 2005 | |
5109c8dd | 2006 | val = x_get_local_selection (selection_symbol, target_type, 1); |
ede4db72 RS |
2007 | |
2008 | if (NILP (val)) | |
2009 | { | |
2010 | val = x_get_foreign_selection (selection_symbol, target_type); | |
2011 | goto DONE; | |
2012 | } | |
2013 | ||
2014 | if (CONSP (val) | |
8e713be6 | 2015 | && SYMBOLP (XCAR (val))) |
ede4db72 | 2016 | { |
8e713be6 KR |
2017 | val = XCDR (val); |
2018 | if (CONSP (val) && NILP (XCDR (val))) | |
2019 | val = XCAR (val); | |
ede4db72 RS |
2020 | } |
2021 | val = clean_local_selection_data (val); | |
2022 | DONE: | |
2023 | UNGCPRO; | |
2024 | return val; | |
2025 | } | |
2026 | ||
a0d76c27 | 2027 | DEFUN ("x-disown-selection-internal", Fx_disown_selection_internal, |
8c1a1077 PJ |
2028 | Sx_disown_selection_internal, 1, 2, 0, |
2029 | doc: /* If we own the selection SELECTION, disown it. | |
2030 | Disowning it means there is no such selection. */) | |
2031 | (selection, time) | |
ede4db72 RS |
2032 | Lisp_Object selection; |
2033 | Lisp_Object time; | |
2034 | { | |
ede4db72 RS |
2035 | Time timestamp; |
2036 | Atom selection_atom; | |
44d46531 | 2037 | struct selection_input_event event; |
3834c318 | 2038 | Display *display; |
5c3a351a | 2039 | struct x_display_info *dpyinfo; |
378c33ca | 2040 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2041 | |
703e0710 | 2042 | check_x (); |
378c33ca GM |
2043 | display = FRAME_X_DISPLAY (sf); |
2044 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
b7826503 | 2045 | CHECK_SYMBOL (selection); |
ede4db72 | 2046 | if (NILP (time)) |
7da64e5c | 2047 | timestamp = last_event_timestamp; |
ede4db72 RS |
2048 | else |
2049 | timestamp = cons_to_long (time); | |
2050 | ||
2051 | if (NILP (assq_no_quit (selection, Vselection_alist))) | |
2052 | return Qnil; /* Don't disown the selection when we're not the owner. */ | |
2053 | ||
5c3a351a | 2054 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection); |
ede4db72 RS |
2055 | |
2056 | BLOCK_INPUT; | |
2057 | XSetSelectionOwner (display, selection_atom, None, timestamp); | |
2058 | UNBLOCK_INPUT; | |
2059 | ||
eb8c3be9 | 2060 | /* It doesn't seem to be guaranteed that a SelectionClear event will be |
ede4db72 RS |
2061 | generated for a window which owns the selection when that window sets |
2062 | the selection owner to None. The NCD server does, the MIT Sun4 server | |
2063 | doesn't. So we synthesize one; this means we might get two, but | |
2064 | that's ok, because the second one won't have any effect. */ | |
8d47f8c4 RS |
2065 | SELECTION_EVENT_DISPLAY (&event) = display; |
2066 | SELECTION_EVENT_SELECTION (&event) = selection_atom; | |
2067 | SELECTION_EVENT_TIME (&event) = timestamp; | |
44d46531 | 2068 | x_handle_selection_clear ((struct input_event *) &event); |
ede4db72 RS |
2069 | |
2070 | return Qt; | |
2071 | } | |
2072 | ||
a87ed99c RS |
2073 | /* Get rid of all the selections in buffer BUFFER. |
2074 | This is used when we kill a buffer. */ | |
2075 | ||
2076 | void | |
2077 | x_disown_buffer_selections (buffer) | |
2078 | Lisp_Object buffer; | |
2079 | { | |
2080 | Lisp_Object tail; | |
2081 | struct buffer *buf = XBUFFER (buffer); | |
2082 | ||
8e713be6 | 2083 | for (tail = Vselection_alist; CONSP (tail); tail = XCDR (tail)) |
a87ed99c RS |
2084 | { |
2085 | Lisp_Object elt, value; | |
8e713be6 KR |
2086 | elt = XCAR (tail); |
2087 | value = XCDR (elt); | |
2088 | if (CONSP (value) && MARKERP (XCAR (value)) | |
2089 | && XMARKER (XCAR (value))->buffer == buf) | |
2090 | Fx_disown_selection_internal (XCAR (elt), Qnil); | |
a87ed99c RS |
2091 | } |
2092 | } | |
ede4db72 RS |
2093 | |
2094 | DEFUN ("x-selection-owner-p", Fx_selection_owner_p, Sx_selection_owner_p, | |
8c1a1077 PJ |
2095 | 0, 1, 0, |
2096 | doc: /* Whether the current Emacs process owns the given X Selection. | |
2097 | The arg should be the name of the selection in question, typically one of | |
2098 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2099 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2100 | For convenience, the symbol nil is the same as `PRIMARY', | |
2101 | and t is the same as `SECONDARY'. */) | |
2102 | (selection) | |
ede4db72 RS |
2103 | Lisp_Object selection; |
2104 | { | |
703e0710 | 2105 | check_x (); |
b7826503 | 2106 | CHECK_SYMBOL (selection); |
ede4db72 RS |
2107 | if (EQ (selection, Qnil)) selection = QPRIMARY; |
2108 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
1b65481e | 2109 | |
ede4db72 RS |
2110 | if (NILP (Fassq (selection, Vselection_alist))) |
2111 | return Qnil; | |
2112 | return Qt; | |
2113 | } | |
2114 | ||
2115 | DEFUN ("x-selection-exists-p", Fx_selection_exists_p, Sx_selection_exists_p, | |
8c1a1077 PJ |
2116 | 0, 1, 0, |
2117 | doc: /* Whether there is an owner for the given X Selection. | |
2118 | The arg should be the name of the selection in question, typically one of | |
2119 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2120 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2121 | For convenience, the symbol nil is the same as `PRIMARY', | |
2122 | and t is the same as `SECONDARY'. */) | |
2123 | (selection) | |
ede4db72 RS |
2124 | Lisp_Object selection; |
2125 | { | |
2126 | Window owner; | |
356ba514 | 2127 | Atom atom; |
3834c318 | 2128 | Display *dpy; |
378c33ca | 2129 | struct frame *sf = SELECTED_FRAME (); |
3834c318 | 2130 | |
b8c70430 | 2131 | /* It should be safe to call this before we have an X frame. */ |
378c33ca | 2132 | if (! FRAME_X_P (sf)) |
b8c70430 RS |
2133 | return Qnil; |
2134 | ||
378c33ca | 2135 | dpy = FRAME_X_DISPLAY (sf); |
b7826503 | 2136 | CHECK_SYMBOL (selection); |
ede4db72 RS |
2137 | if (!NILP (Fx_selection_owner_p (selection))) |
2138 | return Qt; | |
356ba514 RS |
2139 | if (EQ (selection, Qnil)) selection = QPRIMARY; |
2140 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
378c33ca | 2141 | atom = symbol_to_x_atom (FRAME_X_DISPLAY_INFO (sf), dpy, selection); |
356ba514 RS |
2142 | if (atom == 0) |
2143 | return Qnil; | |
ede4db72 | 2144 | BLOCK_INPUT; |
356ba514 | 2145 | owner = XGetSelectionOwner (dpy, atom); |
ede4db72 RS |
2146 | UNBLOCK_INPUT; |
2147 | return (owner ? Qt : Qnil); | |
2148 | } | |
2149 | ||
2150 | \f | |
2151 | #ifdef CUT_BUFFER_SUPPORT | |
2152 | ||
ede4db72 RS |
2153 | /* Ensure that all 8 cut buffers exist. ICCCM says we gotta... */ |
2154 | static void | |
2155 | initialize_cut_buffers (display, window) | |
2156 | Display *display; | |
2157 | Window window; | |
2158 | { | |
2159 | unsigned char *data = (unsigned char *) ""; | |
2160 | BLOCK_INPUT; | |
2161 | #define FROB(atom) XChangeProperty (display, window, atom, XA_STRING, 8, \ | |
2162 | PropModeAppend, data, 0) | |
2163 | FROB (XA_CUT_BUFFER0); | |
2164 | FROB (XA_CUT_BUFFER1); | |
2165 | FROB (XA_CUT_BUFFER2); | |
2166 | FROB (XA_CUT_BUFFER3); | |
2167 | FROB (XA_CUT_BUFFER4); | |
2168 | FROB (XA_CUT_BUFFER5); | |
2169 | FROB (XA_CUT_BUFFER6); | |
2170 | FROB (XA_CUT_BUFFER7); | |
2171 | #undef FROB | |
2172 | UNBLOCK_INPUT; | |
ede4db72 RS |
2173 | } |
2174 | ||
2175 | ||
b7826503 PJ |
2176 | #define CHECK_CUT_BUFFER(symbol) \ |
2177 | { CHECK_SYMBOL ((symbol)); \ | |
ede4db72 RS |
2178 | if (!EQ((symbol), QCUT_BUFFER0) && !EQ((symbol), QCUT_BUFFER1) \ |
2179 | && !EQ((symbol), QCUT_BUFFER2) && !EQ((symbol), QCUT_BUFFER3) \ | |
2180 | && !EQ((symbol), QCUT_BUFFER4) && !EQ((symbol), QCUT_BUFFER5) \ | |
2181 | && !EQ((symbol), QCUT_BUFFER6) && !EQ((symbol), QCUT_BUFFER7)) \ | |
2182 | Fsignal (Qerror, \ | |
a87ed99c | 2183 | Fcons (build_string ("doesn't name a cut buffer"), \ |
ede4db72 RS |
2184 | Fcons ((symbol), Qnil))); \ |
2185 | } | |
2186 | ||
a87ed99c | 2187 | DEFUN ("x-get-cut-buffer-internal", Fx_get_cut_buffer_internal, |
8c1a1077 PJ |
2188 | Sx_get_cut_buffer_internal, 1, 1, 0, |
2189 | doc: /* Returns the value of the named cut buffer (typically CUT_BUFFER0). */) | |
2190 | (buffer) | |
ede4db72 RS |
2191 | Lisp_Object buffer; |
2192 | { | |
3834c318 | 2193 | Window window; |
ede4db72 RS |
2194 | Atom buffer_atom; |
2195 | unsigned char *data; | |
2196 | int bytes; | |
2197 | Atom type; | |
2198 | int format; | |
2199 | unsigned long size; | |
2200 | Lisp_Object ret; | |
3834c318 | 2201 | Display *display; |
5c3a351a | 2202 | struct x_display_info *dpyinfo; |
378c33ca | 2203 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2204 | |
703e0710 | 2205 | check_x (); |
378c33ca GM |
2206 | display = FRAME_X_DISPLAY (sf); |
2207 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
3834c318 | 2208 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
b7826503 | 2209 | CHECK_CUT_BUFFER (buffer); |
5c3a351a | 2210 | buffer_atom = symbol_to_x_atom (dpyinfo, display, buffer); |
ede4db72 RS |
2211 | |
2212 | x_get_window_property (display, window, buffer_atom, &data, &bytes, | |
2213 | &type, &format, &size, 0); | |
22e00739 RS |
2214 | if (!data || !format) |
2215 | return Qnil; | |
1b65481e | 2216 | |
ede4db72 RS |
2217 | if (format != 8 || type != XA_STRING) |
2218 | Fsignal (Qerror, | |
2219 | Fcons (build_string ("cut buffer doesn't contain 8-bit data"), | |
d9c0d4a3 | 2220 | Fcons (x_atom_to_symbol (display, type), |
ede4db72 RS |
2221 | Fcons (make_number (format), Qnil)))); |
2222 | ||
2223 | ret = (bytes ? make_string ((char *) data, bytes) : Qnil); | |
4feb31b2 | 2224 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 2225 | calls xmalloc itself. */ |
4feb31b2 | 2226 | xfree (data); |
ede4db72 RS |
2227 | return ret; |
2228 | } | |
2229 | ||
2230 | ||
a87ed99c | 2231 | DEFUN ("x-store-cut-buffer-internal", Fx_store_cut_buffer_internal, |
8c1a1077 PJ |
2232 | Sx_store_cut_buffer_internal, 2, 2, 0, |
2233 | doc: /* Sets the value of the named cut buffer (typically CUT_BUFFER0). */) | |
2234 | (buffer, string) | |
ede4db72 RS |
2235 | Lisp_Object buffer, string; |
2236 | { | |
3834c318 | 2237 | Window window; |
ede4db72 RS |
2238 | Atom buffer_atom; |
2239 | unsigned char *data; | |
2240 | int bytes; | |
2241 | int bytes_remaining; | |
3834c318 RS |
2242 | int max_bytes; |
2243 | Display *display; | |
378c33ca | 2244 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2245 | |
703e0710 | 2246 | check_x (); |
378c33ca | 2247 | display = FRAME_X_DISPLAY (sf); |
3834c318 RS |
2248 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
2249 | ||
2250 | max_bytes = SELECTION_QUANTUM (display); | |
2251 | if (max_bytes > MAX_SELECTION_QUANTUM) | |
2252 | max_bytes = MAX_SELECTION_QUANTUM; | |
2253 | ||
b7826503 PJ |
2254 | CHECK_CUT_BUFFER (buffer); |
2255 | CHECK_STRING (string); | |
378c33ca | 2256 | buffer_atom = symbol_to_x_atom (FRAME_X_DISPLAY_INFO (sf), |
5c3a351a | 2257 | display, buffer); |
d5db4077 KR |
2258 | data = (unsigned char *) SDATA (string); |
2259 | bytes = SBYTES (string); | |
ede4db72 RS |
2260 | bytes_remaining = bytes; |
2261 | ||
378c33ca | 2262 | if (! FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized) |
04649dbc KH |
2263 | { |
2264 | initialize_cut_buffers (display, window); | |
378c33ca | 2265 | FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized = 1; |
04649dbc | 2266 | } |
ede4db72 RS |
2267 | |
2268 | BLOCK_INPUT; | |
10608c8c RS |
2269 | |
2270 | /* Don't mess up with an empty value. */ | |
2271 | if (!bytes_remaining) | |
2272 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
2273 | PropModeReplace, data, 0); | |
2274 | ||
ede4db72 RS |
2275 | while (bytes_remaining) |
2276 | { | |
2277 | int chunk = (bytes_remaining < max_bytes | |
2278 | ? bytes_remaining : max_bytes); | |
2279 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
2280 | (bytes_remaining == bytes | |
2281 | ? PropModeReplace | |
2282 | : PropModeAppend), | |
2283 | data, chunk); | |
2284 | data += chunk; | |
2285 | bytes_remaining -= chunk; | |
2286 | } | |
2287 | UNBLOCK_INPUT; | |
2288 | return string; | |
2289 | } | |
2290 | ||
2291 | ||
a87ed99c | 2292 | DEFUN ("x-rotate-cut-buffers-internal", Fx_rotate_cut_buffers_internal, |
8c1a1077 PJ |
2293 | Sx_rotate_cut_buffers_internal, 1, 1, 0, |
2294 | doc: /* Rotate the values of the cut buffers by the given number of step. | |
2295 | Positive means shift the values forward, negative means backward. */) | |
2296 | (n) | |
ede4db72 RS |
2297 | Lisp_Object n; |
2298 | { | |
3834c318 RS |
2299 | Window window; |
2300 | Atom props[8]; | |
2301 | Display *display; | |
378c33ca | 2302 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2303 | |
703e0710 | 2304 | check_x (); |
378c33ca | 2305 | display = FRAME_X_DISPLAY (sf); |
3834c318 | 2306 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
b7826503 | 2307 | CHECK_NUMBER (n); |
3834c318 RS |
2308 | if (XINT (n) == 0) |
2309 | return n; | |
378c33ca | 2310 | if (! FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized) |
04649dbc KH |
2311 | { |
2312 | initialize_cut_buffers (display, window); | |
378c33ca | 2313 | FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized = 1; |
04649dbc | 2314 | } |
3834c318 | 2315 | |
ede4db72 RS |
2316 | props[0] = XA_CUT_BUFFER0; |
2317 | props[1] = XA_CUT_BUFFER1; | |
2318 | props[2] = XA_CUT_BUFFER2; | |
2319 | props[3] = XA_CUT_BUFFER3; | |
2320 | props[4] = XA_CUT_BUFFER4; | |
2321 | props[5] = XA_CUT_BUFFER5; | |
2322 | props[6] = XA_CUT_BUFFER6; | |
2323 | props[7] = XA_CUT_BUFFER7; | |
2324 | BLOCK_INPUT; | |
2325 | XRotateWindowProperties (display, window, props, 8, XINT (n)); | |
2326 | UNBLOCK_INPUT; | |
2327 | return n; | |
2328 | } | |
2329 | ||
2330 | #endif | |
2331 | \f | |
ede4db72 RS |
2332 | void |
2333 | syms_of_xselect () | |
2334 | { | |
ede4db72 RS |
2335 | defsubr (&Sx_get_selection_internal); |
2336 | defsubr (&Sx_own_selection_internal); | |
2337 | defsubr (&Sx_disown_selection_internal); | |
2338 | defsubr (&Sx_selection_owner_p); | |
2339 | defsubr (&Sx_selection_exists_p); | |
2340 | ||
2341 | #ifdef CUT_BUFFER_SUPPORT | |
a87ed99c RS |
2342 | defsubr (&Sx_get_cut_buffer_internal); |
2343 | defsubr (&Sx_store_cut_buffer_internal); | |
2344 | defsubr (&Sx_rotate_cut_buffers_internal); | |
ede4db72 RS |
2345 | #endif |
2346 | ||
2347 | reading_selection_reply = Fcons (Qnil, Qnil); | |
2348 | staticpro (&reading_selection_reply); | |
2349 | reading_selection_window = 0; | |
2350 | reading_which_selection = 0; | |
2351 | ||
2352 | property_change_wait_list = 0; | |
2f65feb6 | 2353 | prop_location_identifier = 0; |
ede4db72 RS |
2354 | property_change_reply = Fcons (Qnil, Qnil); |
2355 | staticpro (&property_change_reply); | |
2356 | ||
2357 | Vselection_alist = Qnil; | |
2358 | staticpro (&Vselection_alist); | |
2359 | ||
2360 | DEFVAR_LISP ("selection-converter-alist", &Vselection_converter_alist, | |
8c1a1077 PJ |
2361 | doc: /* An alist associating X Windows selection-types with functions. |
2362 | These functions are called to convert the selection, with three args: | |
2363 | the name of the selection (typically `PRIMARY', `SECONDARY', or `CLIPBOARD'); | |
2364 | a desired type to which the selection should be converted; | |
2365 | and the local selection value (whatever was given to `x-own-selection'). | |
2366 | ||
2367 | The function should return the value to send to the X server | |
2368 | \(typically a string). A return value of nil | |
2369 | means that the conversion could not be done. | |
2370 | A return value which is the symbol `NULL' | |
2371 | means that a side-effect was executed, | |
2372 | and there is no meaningful selection value. */); | |
ede4db72 RS |
2373 | Vselection_converter_alist = Qnil; |
2374 | ||
2375 | DEFVAR_LISP ("x-lost-selection-hooks", &Vx_lost_selection_hooks, | |
8c1a1077 PJ |
2376 | doc: /* A list of functions to be called when Emacs loses an X selection. |
2377 | \(This happens when some other X client makes its own selection | |
2378 | or when a Lisp program explicitly clears the selection.) | |
2379 | The functions are called with one argument, the selection type | |
2380 | \(a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'). */); | |
ede4db72 RS |
2381 | Vx_lost_selection_hooks = Qnil; |
2382 | ||
2383 | DEFVAR_LISP ("x-sent-selection-hooks", &Vx_sent_selection_hooks, | |
8c1a1077 PJ |
2384 | doc: /* A list of functions to be called when Emacs answers a selection request. |
2385 | The functions are called with four arguments: | |
2386 | - the selection name (typically `PRIMARY', `SECONDARY', or `CLIPBOARD'); | |
2387 | - the selection-type which Emacs was asked to convert the | |
2388 | selection into before sending (for example, `STRING' or `LENGTH'); | |
2389 | - a flag indicating success or failure for responding to the request. | |
2390 | We might have failed (and declined the request) for any number of reasons, | |
2391 | including being asked for a selection that we no longer own, or being asked | |
2392 | to convert into a type that we don't know about or that is inappropriate. | |
2393 | This hook doesn't let you change the behavior of Emacs's selection replies, | |
2394 | it merely informs you that they have happened. */); | |
ede4db72 RS |
2395 | Vx_sent_selection_hooks = Qnil; |
2396 | ||
93e4ce1b | 2397 | DEFVAR_LISP ("selection-coding-system", &Vselection_coding_system, |
8c1a1077 PJ |
2398 | doc: /* Coding system for communicating with other X clients. |
2399 | When sending or receiving text via cut_buffer, selection, and clipboard, | |
2400 | the text is encoded or decoded by this coding system. | |
5a79ea57 EZ |
2401 | The default value is `compound-text-with-extensions'. */); |
2402 | Vselection_coding_system = intern ("compound-text-with-extensions"); | |
2584c9ec | 2403 | |
16cd5029 | 2404 | DEFVAR_LISP ("next-selection-coding-system", &Vnext_selection_coding_system, |
8c1a1077 PJ |
2405 | doc: /* Coding system for the next communication with other X clients. |
2406 | Usually, `selection-coding-system' is used for communicating with | |
f8f8d464 JB |
2407 | other X clients. But, if this variable is set, it is used for the |
2408 | next communication only. After the communication, this variable is | |
8c1a1077 | 2409 | set to nil. */); |
16cd5029 KH |
2410 | Vnext_selection_coding_system = Qnil; |
2411 | ||
ede4db72 | 2412 | DEFVAR_INT ("x-selection-timeout", &x_selection_timeout, |
8c1a1077 PJ |
2413 | doc: /* Number of milliseconds to wait for a selection reply. |
2414 | If the selection owner doesn't reply in this time, we give up. | |
2415 | A value of 0 means wait as long as necessary. This is initialized from the | |
2416 | \"*selectionTimeout\" resource. */); | |
ede4db72 RS |
2417 | x_selection_timeout = 0; |
2418 | ||
2419 | QPRIMARY = intern ("PRIMARY"); staticpro (&QPRIMARY); | |
2420 | QSECONDARY = intern ("SECONDARY"); staticpro (&QSECONDARY); | |
2421 | QSTRING = intern ("STRING"); staticpro (&QSTRING); | |
2422 | QINTEGER = intern ("INTEGER"); staticpro (&QINTEGER); | |
2423 | QCLIPBOARD = intern ("CLIPBOARD"); staticpro (&QCLIPBOARD); | |
2424 | QTIMESTAMP = intern ("TIMESTAMP"); staticpro (&QTIMESTAMP); | |
2425 | QTEXT = intern ("TEXT"); staticpro (&QTEXT); | |
e6c7c988 | 2426 | QCOMPOUND_TEXT = intern ("COMPOUND_TEXT"); staticpro (&QCOMPOUND_TEXT); |
5109c8dd | 2427 | QUTF8_STRING = intern ("UTF8_STRING"); staticpro (&QUTF8_STRING); |
ede4db72 RS |
2428 | QTIMESTAMP = intern ("TIMESTAMP"); staticpro (&QTIMESTAMP); |
2429 | QDELETE = intern ("DELETE"); staticpro (&QDELETE); | |
2430 | QMULTIPLE = intern ("MULTIPLE"); staticpro (&QMULTIPLE); | |
2431 | QINCR = intern ("INCR"); staticpro (&QINCR); | |
2432 | QEMACS_TMP = intern ("_EMACS_TMP_"); staticpro (&QEMACS_TMP); | |
2433 | QTARGETS = intern ("TARGETS"); staticpro (&QTARGETS); | |
2434 | QATOM = intern ("ATOM"); staticpro (&QATOM); | |
2435 | QATOM_PAIR = intern ("ATOM_PAIR"); staticpro (&QATOM_PAIR); | |
2436 | QNULL = intern ("NULL"); staticpro (&QNULL); | |
5a79ea57 EZ |
2437 | Qcompound_text_with_extensions = intern ("compound-text-with-extensions"); |
2438 | staticpro (&Qcompound_text_with_extensions); | |
ede4db72 RS |
2439 | |
2440 | #ifdef CUT_BUFFER_SUPPORT | |
2441 | QCUT_BUFFER0 = intern ("CUT_BUFFER0"); staticpro (&QCUT_BUFFER0); | |
2442 | QCUT_BUFFER1 = intern ("CUT_BUFFER1"); staticpro (&QCUT_BUFFER1); | |
2443 | QCUT_BUFFER2 = intern ("CUT_BUFFER2"); staticpro (&QCUT_BUFFER2); | |
2444 | QCUT_BUFFER3 = intern ("CUT_BUFFER3"); staticpro (&QCUT_BUFFER3); | |
2445 | QCUT_BUFFER4 = intern ("CUT_BUFFER4"); staticpro (&QCUT_BUFFER4); | |
2446 | QCUT_BUFFER5 = intern ("CUT_BUFFER5"); staticpro (&QCUT_BUFFER5); | |
2447 | QCUT_BUFFER6 = intern ("CUT_BUFFER6"); staticpro (&QCUT_BUFFER6); | |
2448 | QCUT_BUFFER7 = intern ("CUT_BUFFER7"); staticpro (&QCUT_BUFFER7); | |
2449 | #endif | |
2450 | ||
2451 | } |