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2408b3a1 | 1 | /* X Selection processing for Emacs. |
d9c0d4a3 GM |
2 | Copyright (C) 1993, 1994, 1995, 1996, 1997, 2000, 2001 |
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)); | |
43 | static Lisp_Object x_get_local_selection P_ ((Lisp_Object, Lisp_Object)); | |
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 KH |
98 | Lisp_Object QCOMPOUND_TEXT; /* This is a type of selection. */ |
99 | ||
23e16093 | 100 | Lisp_Object Qcompound_text_no_extensions; |
fbbe0ace | 101 | |
ede4db72 RS |
102 | #ifdef CUT_BUFFER_SUPPORT |
103 | Lisp_Object QCUT_BUFFER0, QCUT_BUFFER1, QCUT_BUFFER2, QCUT_BUFFER3, | |
104 | QCUT_BUFFER4, QCUT_BUFFER5, QCUT_BUFFER6, QCUT_BUFFER7; | |
105 | #endif | |
106 | ||
8f4f023f RS |
107 | static Lisp_Object Vx_lost_selection_hooks; |
108 | static Lisp_Object Vx_sent_selection_hooks; | |
2584c9ec KH |
109 | /* Coding system for communicating with other X clients via cutbuffer, |
110 | selection, and clipboard. */ | |
93e4ce1b | 111 | static Lisp_Object Vselection_coding_system; |
ede4db72 | 112 | |
16cd5029 KH |
113 | /* Coding system for the next communicating with other X clients. */ |
114 | static Lisp_Object Vnext_selection_coding_system; | |
115 | ||
ede4db72 RS |
116 | /* If this is a smaller number than the max-request-size of the display, |
117 | emacs will use INCR selection transfer when the selection is larger | |
118 | than this. The max-request-size is usually around 64k, so if you want | |
119 | emacs to use incremental selection transfers when the selection is | |
120 | smaller than that, set this. I added this mostly for debugging the | |
8f4f023f | 121 | incremental transfer stuff, but it might improve server performance. */ |
ede4db72 RS |
122 | #define MAX_SELECTION_QUANTUM 0xFFFFFF |
123 | ||
c3498e64 JB |
124 | #ifdef HAVE_X11R4 |
125 | #define SELECTION_QUANTUM(dpy) ((XMaxRequestSize(dpy) << 2) - 100) | |
126 | #else | |
127 | #define SELECTION_QUANTUM(dpy) (((dpy)->max_request_size << 2) - 100) | |
128 | #endif | |
ede4db72 | 129 | |
7da64e5c | 130 | /* The timestamp of the last input event Emacs received from the X server. */ |
29674445 KH |
131 | /* Defined in keyboard.c. */ |
132 | extern unsigned long last_event_timestamp; | |
ede4db72 RS |
133 | |
134 | /* This is an association list whose elements are of the form | |
118bd841 RS |
135 | ( SELECTION-NAME SELECTION-VALUE SELECTION-TIMESTAMP FRAME) |
136 | SELECTION-NAME is a lisp symbol, whose name is the name of an X Atom. | |
137 | SELECTION-VALUE is the value that emacs owns for that selection. | |
ede4db72 | 138 | It may be any kind of Lisp object. |
118bd841 | 139 | SELECTION-TIMESTAMP is the time at which emacs began owning this selection, |
ede4db72 | 140 | as a cons of two 16-bit numbers (making a 32 bit time.) |
118bd841 RS |
141 | FRAME is the frame for which we made the selection. |
142 | If there is an entry in this alist, then it can be assumed that Emacs owns | |
ede4db72 RS |
143 | that selection. |
144 | The only (eq) parts of this list that are visible from Lisp are the | |
8f4f023f RS |
145 | selection-values. */ |
146 | static Lisp_Object Vselection_alist; | |
ede4db72 RS |
147 | |
148 | /* This is an alist whose CARs are selection-types (whose names are the same | |
149 | as the names of X Atoms) and whose CDRs are the names of Lisp functions to | |
150 | call to convert the given Emacs selection value to a string representing | |
151 | the given selection type. This is for Lisp-level extension of the emacs | |
8f4f023f RS |
152 | selection handling. */ |
153 | static Lisp_Object Vselection_converter_alist; | |
ede4db72 RS |
154 | |
155 | /* If the selection owner takes too long to reply to a selection request, | |
8f4f023f RS |
156 | we give up on it. This is in milliseconds (0 = no timeout.) */ |
157 | static int x_selection_timeout; | |
ede4db72 RS |
158 | \f |
159 | /* Utility functions */ | |
160 | ||
161 | static void lisp_data_to_selection_data (); | |
162 | static Lisp_Object selection_data_to_lisp_data (); | |
163 | static Lisp_Object x_get_window_property_as_lisp_data (); | |
164 | ||
ede4db72 RS |
165 | /* This converts a Lisp symbol to a server Atom, avoiding a server |
166 | roundtrip whenever possible. */ | |
167 | ||
168 | static Atom | |
5c3a351a RS |
169 | symbol_to_x_atom (dpyinfo, display, sym) |
170 | struct x_display_info *dpyinfo; | |
ede4db72 RS |
171 | Display *display; |
172 | Lisp_Object sym; | |
173 | { | |
174 | Atom val; | |
175 | if (NILP (sym)) return 0; | |
176 | if (EQ (sym, QPRIMARY)) return XA_PRIMARY; | |
177 | if (EQ (sym, QSECONDARY)) return XA_SECONDARY; | |
178 | if (EQ (sym, QSTRING)) return XA_STRING; | |
179 | if (EQ (sym, QINTEGER)) return XA_INTEGER; | |
180 | if (EQ (sym, QATOM)) return XA_ATOM; | |
5c3a351a RS |
181 | if (EQ (sym, QCLIPBOARD)) return dpyinfo->Xatom_CLIPBOARD; |
182 | if (EQ (sym, QTIMESTAMP)) return dpyinfo->Xatom_TIMESTAMP; | |
183 | if (EQ (sym, QTEXT)) return dpyinfo->Xatom_TEXT; | |
e6c7c988 | 184 | if (EQ (sym, QCOMPOUND_TEXT)) return dpyinfo->Xatom_COMPOUND_TEXT; |
5c3a351a RS |
185 | if (EQ (sym, QDELETE)) return dpyinfo->Xatom_DELETE; |
186 | if (EQ (sym, QMULTIPLE)) return dpyinfo->Xatom_MULTIPLE; | |
187 | if (EQ (sym, QINCR)) return dpyinfo->Xatom_INCR; | |
188 | if (EQ (sym, QEMACS_TMP)) return dpyinfo->Xatom_EMACS_TMP; | |
189 | if (EQ (sym, QTARGETS)) return dpyinfo->Xatom_TARGETS; | |
190 | if (EQ (sym, QNULL)) return dpyinfo->Xatom_NULL; | |
ede4db72 RS |
191 | #ifdef CUT_BUFFER_SUPPORT |
192 | if (EQ (sym, QCUT_BUFFER0)) return XA_CUT_BUFFER0; | |
193 | if (EQ (sym, QCUT_BUFFER1)) return XA_CUT_BUFFER1; | |
194 | if (EQ (sym, QCUT_BUFFER2)) return XA_CUT_BUFFER2; | |
195 | if (EQ (sym, QCUT_BUFFER3)) return XA_CUT_BUFFER3; | |
196 | if (EQ (sym, QCUT_BUFFER4)) return XA_CUT_BUFFER4; | |
197 | if (EQ (sym, QCUT_BUFFER5)) return XA_CUT_BUFFER5; | |
198 | if (EQ (sym, QCUT_BUFFER6)) return XA_CUT_BUFFER6; | |
199 | if (EQ (sym, QCUT_BUFFER7)) return XA_CUT_BUFFER7; | |
200 | #endif | |
201 | if (!SYMBOLP (sym)) abort (); | |
202 | ||
d9c0d4a3 | 203 | TRACE1 (" XInternAtom %s", (char *) XSYMBOL (sym)->name->data); |
ede4db72 RS |
204 | BLOCK_INPUT; |
205 | val = XInternAtom (display, (char *) XSYMBOL (sym)->name->data, False); | |
206 | UNBLOCK_INPUT; | |
207 | return val; | |
208 | } | |
209 | ||
210 | ||
211 | /* This converts a server Atom to a Lisp symbol, avoiding server roundtrips | |
212 | and calls to intern whenever possible. */ | |
213 | ||
214 | static Lisp_Object | |
d9c0d4a3 GM |
215 | x_atom_to_symbol (dpy, atom) |
216 | Display *dpy; | |
ede4db72 RS |
217 | Atom atom; |
218 | { | |
d9c0d4a3 | 219 | struct x_display_info *dpyinfo; |
ede4db72 RS |
220 | char *str; |
221 | Lisp_Object val; | |
d9c0d4a3 GM |
222 | |
223 | if (! atom) | |
224 | return Qnil; | |
225 | ||
7da64e5c RS |
226 | switch (atom) |
227 | { | |
228 | case XA_PRIMARY: | |
229 | return QPRIMARY; | |
230 | case XA_SECONDARY: | |
231 | return QSECONDARY; | |
232 | case XA_STRING: | |
233 | return QSTRING; | |
234 | case XA_INTEGER: | |
235 | return QINTEGER; | |
236 | case XA_ATOM: | |
237 | return QATOM; | |
ede4db72 | 238 | #ifdef CUT_BUFFER_SUPPORT |
7da64e5c RS |
239 | case XA_CUT_BUFFER0: |
240 | return QCUT_BUFFER0; | |
241 | case XA_CUT_BUFFER1: | |
242 | return QCUT_BUFFER1; | |
243 | case XA_CUT_BUFFER2: | |
244 | return QCUT_BUFFER2; | |
245 | case XA_CUT_BUFFER3: | |
246 | return QCUT_BUFFER3; | |
247 | case XA_CUT_BUFFER4: | |
248 | return QCUT_BUFFER4; | |
249 | case XA_CUT_BUFFER5: | |
250 | return QCUT_BUFFER5; | |
251 | case XA_CUT_BUFFER6: | |
252 | return QCUT_BUFFER6; | |
253 | case XA_CUT_BUFFER7: | |
254 | return QCUT_BUFFER7; | |
ede4db72 | 255 | #endif |
7da64e5c RS |
256 | } |
257 | ||
d9c0d4a3 | 258 | dpyinfo = x_display_info_for_display (dpy); |
5c3a351a | 259 | if (atom == dpyinfo->Xatom_CLIPBOARD) |
7da64e5c | 260 | return QCLIPBOARD; |
5c3a351a | 261 | if (atom == dpyinfo->Xatom_TIMESTAMP) |
7da64e5c | 262 | return QTIMESTAMP; |
5c3a351a | 263 | if (atom == dpyinfo->Xatom_TEXT) |
7da64e5c | 264 | return QTEXT; |
e6c7c988 KH |
265 | if (atom == dpyinfo->Xatom_COMPOUND_TEXT) |
266 | return QCOMPOUND_TEXT; | |
5c3a351a | 267 | if (atom == dpyinfo->Xatom_DELETE) |
7da64e5c | 268 | return QDELETE; |
5c3a351a | 269 | if (atom == dpyinfo->Xatom_MULTIPLE) |
7da64e5c | 270 | return QMULTIPLE; |
5c3a351a | 271 | if (atom == dpyinfo->Xatom_INCR) |
7da64e5c | 272 | return QINCR; |
5c3a351a | 273 | if (atom == dpyinfo->Xatom_EMACS_TMP) |
7da64e5c | 274 | return QEMACS_TMP; |
5c3a351a | 275 | if (atom == dpyinfo->Xatom_TARGETS) |
7da64e5c | 276 | return QTARGETS; |
5c3a351a | 277 | if (atom == dpyinfo->Xatom_NULL) |
7da64e5c | 278 | return QNULL; |
ede4db72 RS |
279 | |
280 | BLOCK_INPUT; | |
d9c0d4a3 | 281 | str = XGetAtomName (dpy, atom); |
ede4db72 | 282 | UNBLOCK_INPUT; |
d9c0d4a3 | 283 | TRACE1 ("XGetAtomName --> %s", str); |
ede4db72 RS |
284 | if (! str) return Qnil; |
285 | val = intern (str); | |
286 | BLOCK_INPUT; | |
0158abbc | 287 | /* This was allocated by Xlib, so use XFree. */ |
ede4db72 RS |
288 | XFree (str); |
289 | UNBLOCK_INPUT; | |
290 | return val; | |
291 | } | |
8a89415e | 292 | \f |
ede4db72 RS |
293 | /* Do protocol to assert ourself as a selection owner. |
294 | Update the Vselection_alist so that we can reply to later requests for | |
295 | our selection. */ | |
296 | ||
297 | static void | |
298 | x_own_selection (selection_name, selection_value) | |
299 | Lisp_Object selection_name, selection_value; | |
300 | { | |
378c33ca GM |
301 | struct frame *sf = SELECTED_FRAME (); |
302 | Window selecting_window = FRAME_X_WINDOW (sf); | |
303 | Display *display = FRAME_X_DISPLAY (sf); | |
7da64e5c | 304 | Time time = last_event_timestamp; |
ede4db72 | 305 | Atom selection_atom; |
378c33ca | 306 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (sf); |
5a499696 | 307 | int count; |
ede4db72 | 308 | |
b7826503 | 309 | CHECK_SYMBOL (selection_name); |
5c3a351a | 310 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection_name); |
ede4db72 RS |
311 | |
312 | BLOCK_INPUT; | |
5a499696 | 313 | count = x_catch_errors (display); |
ede4db72 | 314 | XSetSelectionOwner (display, selection_atom, selecting_window, time); |
a7b24d46 | 315 | x_check_errors (display, "Can't set selection: %s"); |
5a499696 | 316 | x_uncatch_errors (display, count); |
ede4db72 RS |
317 | UNBLOCK_INPUT; |
318 | ||
319 | /* Now update the local cache */ | |
320 | { | |
321 | Lisp_Object selection_time; | |
322 | Lisp_Object selection_data; | |
323 | Lisp_Object prev_value; | |
324 | ||
325 | selection_time = long_to_cons ((unsigned long) time); | |
326 | selection_data = Fcons (selection_name, | |
327 | Fcons (selection_value, | |
118bd841 | 328 | Fcons (selection_time, |
378c33ca | 329 | Fcons (selected_frame, Qnil)))); |
ede4db72 RS |
330 | prev_value = assq_no_quit (selection_name, Vselection_alist); |
331 | ||
332 | Vselection_alist = Fcons (selection_data, Vselection_alist); | |
333 | ||
334 | /* If we already owned the selection, remove the old selection data. | |
335 | Perhaps we should destructively modify it instead. | |
336 | Don't use Fdelq as that may QUIT. */ | |
337 | if (!NILP (prev_value)) | |
338 | { | |
339 | Lisp_Object rest; /* we know it's not the CAR, so it's easy. */ | |
340 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) | |
8e713be6 | 341 | if (EQ (prev_value, Fcar (XCDR (rest)))) |
ede4db72 | 342 | { |
f3fbd155 | 343 | XSETCDR (rest, Fcdr (XCDR (rest))); |
ede4db72 RS |
344 | break; |
345 | } | |
346 | } | |
347 | } | |
348 | } | |
349 | \f | |
350 | /* Given a selection-name and desired type, look up our local copy of | |
351 | the selection value and convert it to the type. | |
352 | The value is nil or a string. | |
353 | This function is used both for remote requests | |
7da64e5c | 354 | and for local x-get-selection-internal. |
ede4db72 RS |
355 | |
356 | This calls random Lisp code, and may signal or gc. */ | |
357 | ||
358 | static Lisp_Object | |
359 | x_get_local_selection (selection_symbol, target_type) | |
360 | Lisp_Object selection_symbol, target_type; | |
361 | { | |
362 | Lisp_Object local_value; | |
363 | Lisp_Object handler_fn, value, type, check; | |
364 | int count; | |
365 | ||
366 | local_value = assq_no_quit (selection_symbol, Vselection_alist); | |
367 | ||
368 | if (NILP (local_value)) return Qnil; | |
369 | ||
370 | /* TIMESTAMP and MULTIPLE are special cases 'cause that's easiest. */ | |
371 | if (EQ (target_type, QTIMESTAMP)) | |
372 | { | |
373 | handler_fn = Qnil; | |
8e713be6 | 374 | value = XCAR (XCDR (XCDR (local_value))); |
ede4db72 RS |
375 | } |
376 | #if 0 | |
377 | else if (EQ (target_type, QDELETE)) | |
378 | { | |
379 | handler_fn = Qnil; | |
380 | Fx_disown_selection_internal | |
381 | (selection_symbol, | |
8e713be6 | 382 | XCAR (XCDR (XCDR (local_value)))); |
ede4db72 RS |
383 | value = QNULL; |
384 | } | |
385 | #endif | |
386 | ||
387 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
388 | else if (CONSP (target_type) | |
8e713be6 | 389 | && XCAR (target_type) == QMULTIPLE) |
ede4db72 | 390 | { |
9d2d1dd8 KH |
391 | Lisp_Object pairs; |
392 | int size; | |
ede4db72 | 393 | int i; |
8e713be6 | 394 | pairs = XCDR (target_type); |
9d2d1dd8 | 395 | size = XVECTOR (pairs)->size; |
ede4db72 RS |
396 | /* If the target is MULTIPLE, then target_type looks like |
397 | (MULTIPLE . [[SELECTION1 TARGET1] [SELECTION2 TARGET2] ... ]) | |
398 | We modify the second element of each pair in the vector and | |
399 | return it as [[SELECTION1 <value1>] [SELECTION2 <value2>] ... ] | |
400 | */ | |
401 | for (i = 0; i < size; i++) | |
402 | { | |
9d2d1dd8 KH |
403 | Lisp_Object pair; |
404 | pair = XVECTOR (pairs)->contents [i]; | |
ede4db72 RS |
405 | XVECTOR (pair)->contents [1] |
406 | = x_get_local_selection (XVECTOR (pair)->contents [0], | |
407 | XVECTOR (pair)->contents [1]); | |
408 | } | |
409 | return pairs; | |
410 | } | |
411 | #endif | |
412 | else | |
413 | { | |
414 | /* Don't allow a quit within the converter. | |
415 | When the user types C-g, he would be surprised | |
416 | if by luck it came during a converter. */ | |
417 | count = specpdl_ptr - specpdl; | |
418 | specbind (Qinhibit_quit, Qt); | |
419 | ||
b7826503 | 420 | CHECK_SYMBOL (target_type); |
ede4db72 | 421 | handler_fn = Fcdr (Fassq (target_type, Vselection_converter_alist)); |
1eb4d468 RS |
422 | if (!NILP (handler_fn)) |
423 | value = call3 (handler_fn, | |
424 | selection_symbol, target_type, | |
8e713be6 | 425 | XCAR (XCDR (local_value))); |
1eb4d468 RS |
426 | else |
427 | value = Qnil; | |
ede4db72 RS |
428 | unbind_to (count, Qnil); |
429 | } | |
430 | ||
431 | /* Make sure this value is of a type that we could transmit | |
432 | to another X client. */ | |
a87ed99c | 433 | |
ede4db72 RS |
434 | check = value; |
435 | if (CONSP (value) | |
8e713be6 KR |
436 | && SYMBOLP (XCAR (value))) |
437 | type = XCAR (value), | |
438 | check = XCDR (value); | |
ede4db72 RS |
439 | |
440 | if (STRINGP (check) | |
441 | || VECTORP (check) | |
442 | || SYMBOLP (check) | |
7da64e5c | 443 | || INTEGERP (check) |
ede4db72 RS |
444 | || NILP (value)) |
445 | return value; | |
a87ed99c | 446 | /* Check for a value that cons_to_long could handle. */ |
ede4db72 | 447 | else if (CONSP (check) |
8e713be6 KR |
448 | && INTEGERP (XCAR (check)) |
449 | && (INTEGERP (XCDR (check)) | |
ede4db72 | 450 | || |
8e713be6 KR |
451 | (CONSP (XCDR (check)) |
452 | && INTEGERP (XCAR (XCDR (check))) | |
453 | && NILP (XCDR (XCDR (check)))))) | |
ede4db72 RS |
454 | return value; |
455 | else | |
456 | return | |
457 | Fsignal (Qerror, | |
a87ed99c | 458 | Fcons (build_string ("invalid data returned by selection-conversion function"), |
ede4db72 RS |
459 | Fcons (handler_fn, Fcons (value, Qnil)))); |
460 | } | |
461 | \f | |
462 | /* Subroutines of x_reply_selection_request. */ | |
463 | ||
5d0ba25b | 464 | /* Send a SelectionNotify event to the requestor with property=None, |
ede4db72 RS |
465 | meaning we were unable to do what they wanted. */ |
466 | ||
467 | static void | |
468 | x_decline_selection_request (event) | |
469 | struct input_event *event; | |
470 | { | |
471 | XSelectionEvent reply; | |
d9c0d4a3 GM |
472 | int count; |
473 | ||
ede4db72 RS |
474 | reply.type = SelectionNotify; |
475 | reply.display = SELECTION_EVENT_DISPLAY (event); | |
5d0ba25b | 476 | reply.requestor = SELECTION_EVENT_REQUESTOR (event); |
ede4db72 RS |
477 | reply.selection = SELECTION_EVENT_SELECTION (event); |
478 | reply.time = SELECTION_EVENT_TIME (event); | |
479 | reply.target = SELECTION_EVENT_TARGET (event); | |
480 | reply.property = None; | |
481 | ||
d9c0d4a3 GM |
482 | /* The reason for the error may be that the receiver has |
483 | died in the meantime. Handle that case. */ | |
ede4db72 | 484 | BLOCK_INPUT; |
d9c0d4a3 GM |
485 | count = x_catch_errors (reply.display); |
486 | XSendEvent (reply.display, reply.requestor, False, 0L, (XEvent *) &reply); | |
5c3a351a | 487 | XFlush (reply.display); |
d9c0d4a3 | 488 | x_uncatch_errors (reply.display, count); |
ede4db72 RS |
489 | UNBLOCK_INPUT; |
490 | } | |
491 | ||
492 | /* This is the selection request currently being processed. | |
493 | It is set to zero when the request is fully processed. */ | |
494 | static struct input_event *x_selection_current_request; | |
495 | ||
ca29f2b8 GM |
496 | /* Display info in x_selection_request. */ |
497 | ||
498 | static struct x_display_info *selection_request_dpyinfo; | |
499 | ||
ede4db72 | 500 | /* Used as an unwind-protect clause so that, if a selection-converter signals |
2a1a4c9d | 501 | an error, we tell the requester that we were unable to do what they wanted |
ede4db72 RS |
502 | before we throw to top-level or go into the debugger or whatever. */ |
503 | ||
504 | static Lisp_Object | |
505 | x_selection_request_lisp_error (ignore) | |
506 | Lisp_Object ignore; | |
507 | { | |
ca29f2b8 GM |
508 | if (x_selection_current_request != 0 |
509 | && selection_request_dpyinfo->display) | |
ede4db72 RS |
510 | x_decline_selection_request (x_selection_current_request); |
511 | return Qnil; | |
512 | } | |
513 | \f | |
d1f21a66 RS |
514 | |
515 | /* This stuff is so that INCR selections are reentrant (that is, so we can | |
516 | be servicing multiple INCR selection requests simultaneously.) I haven't | |
517 | actually tested that yet. */ | |
518 | ||
519 | /* Keep a list of the property changes that are awaited. */ | |
520 | ||
521 | struct prop_location | |
522 | { | |
523 | int identifier; | |
524 | Display *display; | |
525 | Window window; | |
526 | Atom property; | |
527 | int desired_state; | |
528 | int arrived; | |
529 | struct prop_location *next; | |
530 | }; | |
531 | ||
532 | static struct prop_location *expect_property_change (); | |
533 | static void wait_for_property_change (); | |
534 | static void unexpect_property_change (); | |
535 | static int waiting_for_other_props_on_window (); | |
536 | ||
537 | static int prop_location_identifier; | |
538 | ||
539 | static Lisp_Object property_change_reply; | |
540 | ||
541 | static struct prop_location *property_change_reply_object; | |
542 | ||
543 | static struct prop_location *property_change_wait_list; | |
55b2d45d RS |
544 | |
545 | static Lisp_Object | |
546 | queue_selection_requests_unwind (frame) | |
547 | Lisp_Object frame; | |
548 | { | |
549 | FRAME_PTR f = XFRAME (frame); | |
550 | ||
551 | if (! NILP (frame)) | |
552 | x_stop_queuing_selection_requests (FRAME_X_DISPLAY (f)); | |
ab552306 | 553 | return Qnil; |
55b2d45d RS |
554 | } |
555 | ||
556 | /* Return some frame whose display info is DPYINFO. | |
557 | Return nil if there is none. */ | |
558 | ||
559 | static Lisp_Object | |
560 | some_frame_on_display (dpyinfo) | |
561 | struct x_display_info *dpyinfo; | |
562 | { | |
563 | Lisp_Object list, frame; | |
564 | ||
565 | FOR_EACH_FRAME (list, frame) | |
566 | { | |
567 | if (FRAME_X_DISPLAY_INFO (XFRAME (frame)) == dpyinfo) | |
568 | return frame; | |
569 | } | |
570 | ||
571 | return Qnil; | |
572 | } | |
d1f21a66 | 573 | \f |
ede4db72 RS |
574 | /* Send the reply to a selection request event EVENT. |
575 | TYPE is the type of selection data requested. | |
576 | DATA and SIZE describe the data to send, already converted. | |
577 | FORMAT is the unit-size (in bits) of the data to be transmitted. */ | |
578 | ||
579 | static void | |
580 | x_reply_selection_request (event, format, data, size, type) | |
581 | struct input_event *event; | |
582 | int format, size; | |
583 | unsigned char *data; | |
584 | Atom type; | |
585 | { | |
586 | XSelectionEvent reply; | |
587 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
5d0ba25b | 588 | Window window = SELECTION_EVENT_REQUESTOR (event); |
ede4db72 RS |
589 | int bytes_remaining; |
590 | int format_bytes = format/8; | |
591 | int max_bytes = SELECTION_QUANTUM (display); | |
5c3a351a | 592 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
5a499696 | 593 | int count; |
ede4db72 RS |
594 | |
595 | if (max_bytes > MAX_SELECTION_QUANTUM) | |
596 | max_bytes = MAX_SELECTION_QUANTUM; | |
597 | ||
598 | reply.type = SelectionNotify; | |
599 | reply.display = display; | |
5d0ba25b | 600 | reply.requestor = window; |
ede4db72 RS |
601 | reply.selection = SELECTION_EVENT_SELECTION (event); |
602 | reply.time = SELECTION_EVENT_TIME (event); | |
603 | reply.target = SELECTION_EVENT_TARGET (event); | |
604 | reply.property = SELECTION_EVENT_PROPERTY (event); | |
605 | if (reply.property == None) | |
606 | reply.property = reply.target; | |
607 | ||
608 | /* #### XChangeProperty can generate BadAlloc, and we must handle it! */ | |
afe1529d | 609 | BLOCK_INPUT; |
ad7f9d12 | 610 | count = x_catch_errors (display); |
ede4db72 | 611 | |
ede4db72 RS |
612 | /* Store the data on the requested property. |
613 | If the selection is large, only store the first N bytes of it. | |
614 | */ | |
615 | bytes_remaining = size * format_bytes; | |
616 | if (bytes_remaining <= max_bytes) | |
617 | { | |
618 | /* Send all the data at once, with minimal handshaking. */ | |
d9c0d4a3 | 619 | TRACE1 ("Sending all %d bytes", bytes_remaining); |
ede4db72 RS |
620 | XChangeProperty (display, window, reply.property, type, format, |
621 | PropModeReplace, data, size); | |
622 | /* At this point, the selection was successfully stored; ack it. */ | |
2f65feb6 | 623 | XSendEvent (display, window, False, 0L, (XEvent *) &reply); |
ede4db72 RS |
624 | } |
625 | else | |
626 | { | |
627 | /* Send an INCR selection. */ | |
d1f21a66 | 628 | struct prop_location *wait_object; |
afe1529d | 629 | int had_errors; |
55b2d45d | 630 | Lisp_Object frame; |
ede4db72 | 631 | |
55b2d45d RS |
632 | frame = some_frame_on_display (dpyinfo); |
633 | ||
634 | /* If the display no longer has frames, we can't expect | |
635 | to get many more selection requests from it, so don't | |
636 | bother trying to queue them. */ | |
637 | if (!NILP (frame)) | |
638 | { | |
639 | x_start_queuing_selection_requests (display); | |
640 | ||
641 | record_unwind_protect (queue_selection_requests_unwind, | |
642 | frame); | |
643 | } | |
2f65feb6 | 644 | |
19126e11 | 645 | if (x_window_to_frame (dpyinfo, window)) /* #### debug */ |
606140dd | 646 | error ("Attempt to transfer an INCR to ourself!"); |
d9c0d4a3 GM |
647 | |
648 | TRACE2 ("Start sending %d bytes incrementally (%s)", | |
649 | bytes_remaining, XGetAtomName (display, reply.property)); | |
d1f21a66 RS |
650 | wait_object = expect_property_change (display, window, reply.property, |
651 | PropertyDelete); | |
ede4db72 | 652 | |
d9c0d4a3 GM |
653 | TRACE1 ("Set %s to number of bytes to send", |
654 | XGetAtomName (display, reply.property)); | |
5c3a351a | 655 | XChangeProperty (display, window, reply.property, dpyinfo->Xatom_INCR, |
55b2d45d RS |
656 | 32, PropModeReplace, |
657 | (unsigned char *) &bytes_remaining, 1); | |
ede4db72 | 658 | XSelectInput (display, window, PropertyChangeMask); |
d9c0d4a3 | 659 | |
ede4db72 | 660 | /* Tell 'em the INCR data is there... */ |
d9c0d4a3 | 661 | TRACE0 ("Send SelectionNotify event"); |
55b2d45d | 662 | XSendEvent (display, window, False, 0L, (XEvent *) &reply); |
5c3a351a | 663 | XFlush (display); |
afe1529d RS |
664 | |
665 | had_errors = x_had_errors_p (display); | |
2f65feb6 | 666 | UNBLOCK_INPUT; |
ede4db72 | 667 | |
2a1a4c9d | 668 | /* First, wait for the requester to ack by deleting the property. |
ede4db72 | 669 | This can run random lisp code (process handlers) or signal. */ |
afe1529d | 670 | if (! had_errors) |
d9c0d4a3 GM |
671 | { |
672 | TRACE1 ("Waiting for ACK (deletion of %s)", | |
673 | XGetAtomName (display, reply.property)); | |
674 | wait_for_property_change (wait_object); | |
675 | } | |
ede4db72 | 676 | |
d9c0d4a3 | 677 | TRACE0 ("Got ACK"); |
ede4db72 RS |
678 | while (bytes_remaining) |
679 | { | |
680 | int i = ((bytes_remaining < max_bytes) | |
681 | ? bytes_remaining | |
682 | : max_bytes); | |
2f65feb6 RS |
683 | |
684 | BLOCK_INPUT; | |
685 | ||
d1f21a66 RS |
686 | wait_object |
687 | = expect_property_change (display, window, reply.property, | |
688 | PropertyDelete); | |
d9c0d4a3 GM |
689 | |
690 | TRACE1 ("Sending increment of %d bytes", i); | |
691 | TRACE1 ("Set %s to increment data", | |
692 | XGetAtomName (display, reply.property)); | |
693 | ||
ede4db72 RS |
694 | /* Append the next chunk of data to the property. */ |
695 | XChangeProperty (display, window, reply.property, type, format, | |
696 | PropModeAppend, data, i / format_bytes); | |
697 | bytes_remaining -= i; | |
698 | data += i; | |
5c3a351a | 699 | XFlush (display); |
afe1529d | 700 | had_errors = x_had_errors_p (display); |
2f65feb6 | 701 | UNBLOCK_INPUT; |
ede4db72 | 702 | |
afe1529d RS |
703 | if (had_errors) |
704 | break; | |
705 | ||
2a1a4c9d | 706 | /* Now wait for the requester to ack this chunk by deleting the |
d9c0d4a3 GM |
707 | property. This can run random lisp code or signal. */ |
708 | TRACE1 ("Waiting for increment ACK (deletion of %s)", | |
709 | XGetAtomName (display, reply.property)); | |
d1f21a66 | 710 | wait_for_property_change (wait_object); |
ede4db72 | 711 | } |
d9c0d4a3 GM |
712 | |
713 | /* Now write a zero-length chunk to the property to tell the | |
714 | requester that we're done. */ | |
2f65feb6 | 715 | BLOCK_INPUT; |
ede4db72 RS |
716 | if (! waiting_for_other_props_on_window (display, window)) |
717 | XSelectInput (display, window, 0L); | |
718 | ||
d9c0d4a3 GM |
719 | TRACE1 ("Set %s to a 0-length chunk to indicate EOF", |
720 | XGetAtomName (display, reply.property)); | |
ede4db72 RS |
721 | XChangeProperty (display, window, reply.property, type, format, |
722 | PropModeReplace, data, 0); | |
d9c0d4a3 | 723 | TRACE0 ("Done sending incrementally"); |
ede4db72 | 724 | } |
afe1529d | 725 | |
47a6ac17 GM |
726 | /* The window we're communicating with may have been deleted |
727 | in the meantime (that's a real situation from a bug report). | |
728 | In this case, there may be events in the event queue still | |
729 | refering to the deleted window, and we'll get a BadWindow error | |
730 | in XTread_socket when processing the events. I don't have | |
731 | an idea how to fix that. gerd, 2001-01-98. */ | |
afe1529d | 732 | XFlush (display); |
5a499696 | 733 | x_uncatch_errors (display, count); |
afe1529d | 734 | UNBLOCK_INPUT; |
ede4db72 RS |
735 | } |
736 | \f | |
737 | /* Handle a SelectionRequest event EVENT. | |
738 | This is called from keyboard.c when such an event is found in the queue. */ | |
739 | ||
740 | void | |
741 | x_handle_selection_request (event) | |
742 | struct input_event *event; | |
743 | { | |
744 | struct gcpro gcpro1, gcpro2, gcpro3; | |
9d2d1dd8 | 745 | Lisp_Object local_selection_data; |
ede4db72 | 746 | Lisp_Object selection_symbol; |
9d2d1dd8 KH |
747 | Lisp_Object target_symbol; |
748 | Lisp_Object converted_selection; | |
ede4db72 | 749 | Time local_selection_time; |
9d2d1dd8 | 750 | Lisp_Object successful_p; |
ede4db72 | 751 | int count; |
5c3a351a RS |
752 | struct x_display_info *dpyinfo |
753 | = x_display_info_for_display (SELECTION_EVENT_DISPLAY (event)); | |
ede4db72 | 754 | |
9d2d1dd8 KH |
755 | local_selection_data = Qnil; |
756 | target_symbol = Qnil; | |
757 | converted_selection = Qnil; | |
758 | successful_p = Qnil; | |
759 | ||
ede4db72 RS |
760 | GCPRO3 (local_selection_data, converted_selection, target_symbol); |
761 | ||
d9c0d4a3 | 762 | selection_symbol = x_atom_to_symbol (SELECTION_EVENT_DISPLAY (event), |
ede4db72 RS |
763 | SELECTION_EVENT_SELECTION (event)); |
764 | ||
765 | local_selection_data = assq_no_quit (selection_symbol, Vselection_alist); | |
ede4db72 RS |
766 | |
767 | if (NILP (local_selection_data)) | |
768 | { | |
769 | /* Someone asked for the selection, but we don't have it any more. | |
770 | */ | |
771 | x_decline_selection_request (event); | |
772 | goto DONE; | |
773 | } | |
774 | ||
775 | local_selection_time = (Time) | |
8e713be6 | 776 | cons_to_long (XCAR (XCDR (XCDR (local_selection_data)))); |
ede4db72 RS |
777 | |
778 | if (SELECTION_EVENT_TIME (event) != CurrentTime | |
7da64e5c | 779 | && local_selection_time > SELECTION_EVENT_TIME (event)) |
ede4db72 RS |
780 | { |
781 | /* Someone asked for the selection, and we have one, but not the one | |
782 | they're looking for. | |
783 | */ | |
784 | x_decline_selection_request (event); | |
785 | goto DONE; | |
786 | } | |
787 | ||
ede4db72 | 788 | x_selection_current_request = event; |
ca29f2b8 GM |
789 | count = BINDING_STACK_SIZE (); |
790 | selection_request_dpyinfo = dpyinfo; | |
ede4db72 RS |
791 | record_unwind_protect (x_selection_request_lisp_error, Qnil); |
792 | ||
d9c0d4a3 | 793 | target_symbol = x_atom_to_symbol (SELECTION_EVENT_DISPLAY (event), |
ede4db72 RS |
794 | SELECTION_EVENT_TARGET (event)); |
795 | ||
796 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
797 | if (EQ (target_symbol, QMULTIPLE)) | |
798 | target_symbol = fetch_multiple_target (event); | |
799 | #endif | |
800 | ||
801 | /* Convert lisp objects back into binary data */ | |
802 | ||
803 | converted_selection | |
804 | = x_get_local_selection (selection_symbol, target_symbol); | |
805 | ||
806 | if (! NILP (converted_selection)) | |
807 | { | |
808 | unsigned char *data; | |
809 | unsigned int size; | |
810 | int format; | |
811 | Atom type; | |
aca39f42 RS |
812 | int nofree; |
813 | ||
2f65feb6 RS |
814 | lisp_data_to_selection_data (SELECTION_EVENT_DISPLAY (event), |
815 | converted_selection, | |
aca39f42 | 816 | &data, &type, &size, &format, &nofree); |
ede4db72 RS |
817 | |
818 | x_reply_selection_request (event, format, data, size, type); | |
819 | successful_p = Qt; | |
820 | ||
821 | /* Indicate we have successfully processed this event. */ | |
7da64e5c | 822 | x_selection_current_request = 0; |
ede4db72 | 823 | |
4feb31b2 | 824 | /* Use xfree, not XFree, because lisp_data_to_selection_data |
0158abbc | 825 | calls xmalloc itself. */ |
aca39f42 | 826 | if (!nofree) |
4feb31b2 | 827 | xfree (data); |
ede4db72 RS |
828 | } |
829 | unbind_to (count, Qnil); | |
830 | ||
831 | DONE: | |
832 | ||
833 | UNGCPRO; | |
834 | ||
835 | /* Let random lisp code notice that the selection has been asked for. */ | |
836 | { | |
9d2d1dd8 KH |
837 | Lisp_Object rest; |
838 | rest = Vx_sent_selection_hooks; | |
ede4db72 RS |
839 | if (!EQ (rest, Qunbound)) |
840 | for (; CONSP (rest); rest = Fcdr (rest)) | |
841 | call3 (Fcar (rest), selection_symbol, target_symbol, successful_p); | |
842 | } | |
843 | } | |
844 | \f | |
e18e6130 | 845 | /* Handle a SelectionClear event EVENT, which indicates that some |
ede4db72 RS |
846 | client cleared out our previously asserted selection. |
847 | This is called from keyboard.c when such an event is found in the queue. */ | |
848 | ||
849 | void | |
850 | x_handle_selection_clear (event) | |
851 | struct input_event *event; | |
852 | { | |
853 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
854 | Atom selection = SELECTION_EVENT_SELECTION (event); | |
855 | Time changed_owner_time = SELECTION_EVENT_TIME (event); | |
856 | ||
857 | Lisp_Object selection_symbol, local_selection_data; | |
858 | Time local_selection_time; | |
5c3a351a | 859 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
e18e6130 RS |
860 | struct x_display_info *t_dpyinfo; |
861 | ||
862 | /* If the new selection owner is also Emacs, | |
863 | don't clear the new selection. */ | |
864 | BLOCK_INPUT; | |
865 | /* Check each display on the same terminal, | |
866 | to see if this Emacs job now owns the selection | |
867 | through that display. */ | |
868 | for (t_dpyinfo = x_display_list; t_dpyinfo; t_dpyinfo = t_dpyinfo->next) | |
869 | if (t_dpyinfo->kboard == dpyinfo->kboard) | |
870 | { | |
871 | Window owner_window | |
872 | = XGetSelectionOwner (t_dpyinfo->display, selection); | |
873 | if (x_window_to_frame (t_dpyinfo, owner_window) != 0) | |
874 | { | |
875 | UNBLOCK_INPUT; | |
876 | return; | |
877 | } | |
878 | } | |
879 | UNBLOCK_INPUT; | |
ede4db72 | 880 | |
d9c0d4a3 | 881 | selection_symbol = x_atom_to_symbol (display, selection); |
ede4db72 RS |
882 | |
883 | local_selection_data = assq_no_quit (selection_symbol, Vselection_alist); | |
884 | ||
885 | /* Well, we already believe that we don't own it, so that's just fine. */ | |
886 | if (NILP (local_selection_data)) return; | |
887 | ||
888 | local_selection_time = (Time) | |
8e713be6 | 889 | cons_to_long (XCAR (XCDR (XCDR (local_selection_data)))); |
ede4db72 RS |
890 | |
891 | /* This SelectionClear is for a selection that we no longer own, so we can | |
892 | disregard it. (That is, we have reasserted the selection since this | |
893 | request was generated.) */ | |
894 | ||
895 | if (changed_owner_time != CurrentTime | |
896 | && local_selection_time > changed_owner_time) | |
897 | return; | |
898 | ||
899 | /* Otherwise, we're really honest and truly being told to drop it. | |
900 | Don't use Fdelq as that may QUIT;. */ | |
901 | ||
902 | if (EQ (local_selection_data, Fcar (Vselection_alist))) | |
903 | Vselection_alist = Fcdr (Vselection_alist); | |
904 | else | |
905 | { | |
906 | Lisp_Object rest; | |
907 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) | |
8e713be6 | 908 | if (EQ (local_selection_data, Fcar (XCDR (rest)))) |
ede4db72 | 909 | { |
f3fbd155 | 910 | XSETCDR (rest, Fcdr (XCDR (rest))); |
ede4db72 RS |
911 | break; |
912 | } | |
913 | } | |
914 | ||
915 | /* Let random lisp code notice that the selection has been stolen. */ | |
916 | ||
917 | { | |
d1f21a66 RS |
918 | Lisp_Object rest; |
919 | rest = Vx_lost_selection_hooks; | |
ede4db72 | 920 | if (!EQ (rest, Qunbound)) |
d1f21a66 RS |
921 | { |
922 | for (; CONSP (rest); rest = Fcdr (rest)) | |
923 | call1 (Fcar (rest), selection_symbol); | |
7c6b2ea4 | 924 | prepare_menu_bars (); |
3007ebfb | 925 | redisplay_preserve_echo_area (20); |
d1f21a66 | 926 | } |
ede4db72 RS |
927 | } |
928 | } | |
929 | ||
118bd841 RS |
930 | /* Clear all selections that were made from frame F. |
931 | We do this when about to delete a frame. */ | |
932 | ||
933 | void | |
934 | x_clear_frame_selections (f) | |
935 | FRAME_PTR f; | |
936 | { | |
937 | Lisp_Object frame; | |
938 | Lisp_Object rest; | |
939 | ||
90851bbe | 940 | XSETFRAME (frame, f); |
118bd841 RS |
941 | |
942 | /* Otherwise, we're really honest and truly being told to drop it. | |
943 | Don't use Fdelq as that may QUIT;. */ | |
944 | ||
0d199f9c RS |
945 | /* Delete elements from the beginning of Vselection_alist. */ |
946 | while (!NILP (Vselection_alist) | |
947 | && EQ (frame, Fcar (Fcdr (Fcdr (Fcdr (Fcar (Vselection_alist))))))) | |
948 | { | |
949 | /* Let random Lisp code notice that the selection has been stolen. */ | |
950 | Lisp_Object hooks, selection_symbol; | |
951 | ||
952 | hooks = Vx_lost_selection_hooks; | |
953 | selection_symbol = Fcar (Fcar (Vselection_alist)); | |
954 | ||
955 | if (!EQ (hooks, Qunbound)) | |
956 | { | |
957 | for (; CONSP (hooks); hooks = Fcdr (hooks)) | |
958 | call1 (Fcar (hooks), selection_symbol); | |
996b804d MB |
959 | #if 0 /* This can crash when deleting a frame |
960 | from x_connection_closed. Anyway, it seems unnecessary; | |
961 | something else should cause a redisplay. */ | |
3007ebfb | 962 | redisplay_preserve_echo_area (21); |
996b804d | 963 | #endif |
0d199f9c RS |
964 | } |
965 | ||
966 | Vselection_alist = Fcdr (Vselection_alist); | |
967 | } | |
968 | ||
969 | /* Delete elements after the beginning of Vselection_alist. */ | |
118bd841 | 970 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) |
8e713be6 | 971 | if (EQ (frame, Fcar (Fcdr (Fcdr (Fcdr (Fcar (XCDR (rest)))))))) |
118bd841 RS |
972 | { |
973 | /* Let random Lisp code notice that the selection has been stolen. */ | |
974 | Lisp_Object hooks, selection_symbol; | |
975 | ||
976 | hooks = Vx_lost_selection_hooks; | |
8e713be6 | 977 | selection_symbol = Fcar (Fcar (XCDR (rest))); |
118bd841 RS |
978 | |
979 | if (!EQ (hooks, Qunbound)) | |
980 | { | |
981 | for (; CONSP (hooks); hooks = Fcdr (hooks)) | |
982 | call1 (Fcar (hooks), selection_symbol); | |
996b804d | 983 | #if 0 /* See above */ |
3007ebfb | 984 | redisplay_preserve_echo_area (22); |
996b804d | 985 | #endif |
118bd841 | 986 | } |
f3fbd155 | 987 | XSETCDR (rest, Fcdr (XCDR (rest))); |
118bd841 RS |
988 | break; |
989 | } | |
990 | } | |
ede4db72 | 991 | \f |
ede4db72 RS |
992 | /* Nonzero if any properties for DISPLAY and WINDOW |
993 | are on the list of what we are waiting for. */ | |
994 | ||
995 | static int | |
996 | waiting_for_other_props_on_window (display, window) | |
997 | Display *display; | |
998 | Window window; | |
999 | { | |
1000 | struct prop_location *rest = property_change_wait_list; | |
1001 | while (rest) | |
1002 | if (rest->display == display && rest->window == window) | |
1003 | return 1; | |
1004 | else | |
1005 | rest = rest->next; | |
1006 | return 0; | |
1007 | } | |
1008 | ||
1009 | /* Add an entry to the list of property changes we are waiting for. | |
1010 | DISPLAY, WINDOW, PROPERTY, STATE describe what we will wait for. | |
1011 | The return value is a number that uniquely identifies | |
1012 | this awaited property change. */ | |
1013 | ||
d1f21a66 | 1014 | static struct prop_location * |
ede4db72 RS |
1015 | expect_property_change (display, window, property, state) |
1016 | Display *display; | |
1017 | Window window; | |
6c070502 | 1018 | Atom property; |
ede4db72 RS |
1019 | int state; |
1020 | { | |
d9c0d4a3 | 1021 | struct prop_location *pl = (struct prop_location *) xmalloc (sizeof *pl); |
2f65feb6 | 1022 | pl->identifier = ++prop_location_identifier; |
ede4db72 RS |
1023 | pl->display = display; |
1024 | pl->window = window; | |
1025 | pl->property = property; | |
1026 | pl->desired_state = state; | |
1027 | pl->next = property_change_wait_list; | |
d1f21a66 | 1028 | pl->arrived = 0; |
ede4db72 | 1029 | property_change_wait_list = pl; |
d1f21a66 | 1030 | return pl; |
ede4db72 RS |
1031 | } |
1032 | ||
1033 | /* Delete an entry from the list of property changes we are waiting for. | |
2f65feb6 | 1034 | IDENTIFIER is the number that uniquely identifies the entry. */ |
ede4db72 RS |
1035 | |
1036 | static void | |
d1f21a66 RS |
1037 | unexpect_property_change (location) |
1038 | struct prop_location *location; | |
ede4db72 RS |
1039 | { |
1040 | struct prop_location *prev = 0, *rest = property_change_wait_list; | |
1041 | while (rest) | |
1042 | { | |
d1f21a66 | 1043 | if (rest == location) |
ede4db72 RS |
1044 | { |
1045 | if (prev) | |
1046 | prev->next = rest->next; | |
1047 | else | |
1048 | property_change_wait_list = rest->next; | |
4feb31b2 | 1049 | xfree (rest); |
ede4db72 RS |
1050 | return; |
1051 | } | |
1052 | prev = rest; | |
1053 | rest = rest->next; | |
1054 | } | |
1055 | } | |
1056 | ||
2f65feb6 RS |
1057 | /* Remove the property change expectation element for IDENTIFIER. */ |
1058 | ||
1059 | static Lisp_Object | |
1060 | wait_for_property_change_unwind (identifierval) | |
1061 | Lisp_Object identifierval; | |
1062 | { | |
c4898489 | 1063 | unexpect_property_change ((struct prop_location *) |
8e713be6 KR |
1064 | (XFASTINT (XCAR (identifierval)) << 16 |
1065 | | XFASTINT (XCDR (identifierval)))); | |
ab552306 | 1066 | return Qnil; |
2f65feb6 RS |
1067 | } |
1068 | ||
ede4db72 | 1069 | /* Actually wait for a property change. |
2f65feb6 | 1070 | IDENTIFIER should be the value that expect_property_change returned. */ |
ede4db72 RS |
1071 | |
1072 | static void | |
d1f21a66 RS |
1073 | wait_for_property_change (location) |
1074 | struct prop_location *location; | |
ede4db72 | 1075 | { |
2f65feb6 RS |
1076 | int secs, usecs; |
1077 | int count = specpdl_ptr - specpdl; | |
d1f21a66 RS |
1078 | Lisp_Object tem; |
1079 | ||
c4898489 | 1080 | tem = Fcons (Qnil, Qnil); |
f3fbd155 KR |
1081 | XSETCARFASTINT (tem, (EMACS_UINT)location >> 16); |
1082 | XSETCDRFASTINT (tem, (EMACS_UINT)location & 0xffff); | |
2f65feb6 RS |
1083 | |
1084 | /* Make sure to do unexpect_property_change if we quit or err. */ | |
d1f21a66 | 1085 | record_unwind_protect (wait_for_property_change_unwind, tem); |
2f65feb6 | 1086 | |
f3fbd155 | 1087 | XSETCAR (property_change_reply, Qnil); |
2f65feb6 | 1088 | |
afe1529d RS |
1089 | property_change_reply_object = location; |
1090 | /* If the event we are waiting for arrives beyond here, it will set | |
1091 | property_change_reply, because property_change_reply_object says so. */ | |
d1f21a66 RS |
1092 | if (! location->arrived) |
1093 | { | |
d1f21a66 RS |
1094 | secs = x_selection_timeout / 1000; |
1095 | usecs = (x_selection_timeout % 1000) * 1000; | |
d9c0d4a3 | 1096 | TRACE2 (" Waiting %d secs, %d usecs", secs, usecs); |
d1f21a66 RS |
1097 | wait_reading_process_input (secs, usecs, property_change_reply, 0); |
1098 | ||
8e713be6 | 1099 | if (NILP (XCAR (property_change_reply))) |
d9c0d4a3 GM |
1100 | { |
1101 | TRACE0 (" Timed out"); | |
1102 | error ("Timed out waiting for property-notify event"); | |
1103 | } | |
d1f21a66 | 1104 | } |
2f65feb6 RS |
1105 | |
1106 | unbind_to (count, Qnil); | |
ede4db72 RS |
1107 | } |
1108 | ||
1109 | /* Called from XTread_socket in response to a PropertyNotify event. */ | |
1110 | ||
1111 | void | |
1112 | x_handle_property_notify (event) | |
1113 | XPropertyEvent *event; | |
1114 | { | |
1115 | struct prop_location *prev = 0, *rest = property_change_wait_list; | |
d9c0d4a3 | 1116 | |
ede4db72 RS |
1117 | while (rest) |
1118 | { | |
1119 | if (rest->property == event->atom | |
1120 | && rest->window == event->window | |
1121 | && rest->display == event->display | |
1122 | && rest->desired_state == event->state) | |
1123 | { | |
d9c0d4a3 GM |
1124 | TRACE2 ("Expected %s of property %s", |
1125 | (event->state == PropertyDelete ? "deletion" : "change"), | |
1126 | XGetAtomName (event->display, event->atom)); | |
ede4db72 | 1127 | |
d1f21a66 RS |
1128 | rest->arrived = 1; |
1129 | ||
ede4db72 RS |
1130 | /* If this is the one wait_for_property_change is waiting for, |
1131 | tell it to wake up. */ | |
d1f21a66 | 1132 | if (rest == property_change_reply_object) |
f3fbd155 | 1133 | XSETCAR (property_change_reply, Qt); |
ede4db72 RS |
1134 | |
1135 | if (prev) | |
1136 | prev->next = rest->next; | |
1137 | else | |
1138 | property_change_wait_list = rest->next; | |
4feb31b2 | 1139 | xfree (rest); |
ede4db72 RS |
1140 | return; |
1141 | } | |
d9c0d4a3 | 1142 | |
ede4db72 RS |
1143 | prev = rest; |
1144 | rest = rest->next; | |
1145 | } | |
ede4db72 RS |
1146 | } |
1147 | ||
1148 | ||
1149 | \f | |
1150 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1151 | ||
1152 | static Lisp_Object | |
1153 | fetch_multiple_target (event) | |
1154 | XSelectionRequestEvent *event; | |
1155 | { | |
1156 | Display *display = event->display; | |
5d0ba25b | 1157 | Window window = event->requestor; |
ede4db72 RS |
1158 | Atom target = event->target; |
1159 | Atom selection_atom = event->selection; | |
1160 | int result; | |
1161 | ||
1162 | return | |
1163 | Fcons (QMULTIPLE, | |
1164 | x_get_window_property_as_lisp_data (display, window, target, | |
1165 | QMULTIPLE, selection_atom)); | |
1166 | } | |
1167 | ||
1168 | static Lisp_Object | |
1169 | copy_multiple_data (obj) | |
1170 | Lisp_Object obj; | |
1171 | { | |
1172 | Lisp_Object vec; | |
1173 | int i; | |
1174 | int size; | |
1175 | if (CONSP (obj)) | |
8e713be6 | 1176 | return Fcons (XCAR (obj), copy_multiple_data (XCDR (obj))); |
ede4db72 | 1177 | |
b7826503 | 1178 | CHECK_VECTOR (obj); |
ede4db72 RS |
1179 | vec = Fmake_vector (size = XVECTOR (obj)->size, Qnil); |
1180 | for (i = 0; i < size; i++) | |
1181 | { | |
1182 | Lisp_Object vec2 = XVECTOR (obj)->contents [i]; | |
b7826503 | 1183 | CHECK_VECTOR (vec2); |
ede4db72 RS |
1184 | if (XVECTOR (vec2)->size != 2) |
1185 | /* ??? Confusing error message */ | |
1186 | Fsignal (Qerror, Fcons (build_string ("vectors must be of length 2"), | |
1187 | Fcons (vec2, Qnil))); | |
1188 | XVECTOR (vec)->contents [i] = Fmake_vector (2, Qnil); | |
1189 | XVECTOR (XVECTOR (vec)->contents [i])->contents [0] | |
1190 | = XVECTOR (vec2)->contents [0]; | |
1191 | XVECTOR (XVECTOR (vec)->contents [i])->contents [1] | |
1192 | = XVECTOR (vec2)->contents [1]; | |
1193 | } | |
1194 | return vec; | |
1195 | } | |
1196 | ||
1197 | #endif | |
1198 | ||
1199 | \f | |
1200 | /* Variables for communication with x_handle_selection_notify. */ | |
1201 | static Atom reading_which_selection; | |
1202 | static Lisp_Object reading_selection_reply; | |
1203 | static Window reading_selection_window; | |
1204 | ||
1205 | /* Do protocol to read selection-data from the server. | |
1206 | Converts this to Lisp data and returns it. */ | |
1207 | ||
1208 | static Lisp_Object | |
1209 | x_get_foreign_selection (selection_symbol, target_type) | |
1210 | Lisp_Object selection_symbol, target_type; | |
1211 | { | |
378c33ca GM |
1212 | struct frame *sf = SELECTED_FRAME (); |
1213 | Window requestor_window = FRAME_X_WINDOW (sf); | |
1214 | Display *display = FRAME_X_DISPLAY (sf); | |
1215 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
5d0ba25b | 1216 | Time requestor_time = last_event_timestamp; |
5c3a351a RS |
1217 | Atom target_property = dpyinfo->Xatom_EMACS_TMP; |
1218 | Atom selection_atom = symbol_to_x_atom (dpyinfo, display, selection_symbol); | |
ede4db72 | 1219 | Atom type_atom; |
80da0190 | 1220 | int secs, usecs; |
5a499696 | 1221 | int count; |
55b2d45d | 1222 | Lisp_Object frame; |
ede4db72 RS |
1223 | |
1224 | if (CONSP (target_type)) | |
8e713be6 | 1225 | type_atom = symbol_to_x_atom (dpyinfo, display, XCAR (target_type)); |
ede4db72 | 1226 | else |
5c3a351a | 1227 | type_atom = symbol_to_x_atom (dpyinfo, display, target_type); |
ede4db72 RS |
1228 | |
1229 | BLOCK_INPUT; | |
d9c0d4a3 | 1230 | |
5a499696 | 1231 | count = x_catch_errors (display); |
d9c0d4a3 GM |
1232 | |
1233 | TRACE2 ("Get selection %s, type %s", | |
1234 | XGetAtomName (display, type_atom), | |
1235 | XGetAtomName (display, target_property)); | |
1236 | ||
ede4db72 | 1237 | XConvertSelection (display, selection_atom, type_atom, target_property, |
5d0ba25b | 1238 | requestor_window, requestor_time); |
5c3a351a | 1239 | XFlush (display); |
ede4db72 RS |
1240 | |
1241 | /* Prepare to block until the reply has been read. */ | |
5d0ba25b | 1242 | reading_selection_window = requestor_window; |
ede4db72 | 1243 | reading_which_selection = selection_atom; |
f3fbd155 | 1244 | XSETCAR (reading_selection_reply, Qnil); |
55b2d45d RS |
1245 | |
1246 | frame = some_frame_on_display (dpyinfo); | |
1247 | ||
1248 | /* If the display no longer has frames, we can't expect | |
1249 | to get many more selection requests from it, so don't | |
1250 | bother trying to queue them. */ | |
1251 | if (!NILP (frame)) | |
1252 | { | |
1253 | x_start_queuing_selection_requests (display); | |
1254 | ||
1255 | record_unwind_protect (queue_selection_requests_unwind, | |
1256 | frame); | |
1257 | } | |
ede4db72 RS |
1258 | UNBLOCK_INPUT; |
1259 | ||
80da0190 RS |
1260 | /* This allows quits. Also, don't wait forever. */ |
1261 | secs = x_selection_timeout / 1000; | |
1262 | usecs = (x_selection_timeout % 1000) * 1000; | |
d9c0d4a3 | 1263 | TRACE1 (" Start waiting %d secs for SelectionNotify", secs); |
80da0190 | 1264 | wait_reading_process_input (secs, usecs, reading_selection_reply, 0); |
d9c0d4a3 | 1265 | TRACE1 (" Got event = %d", !NILP (XCAR (reading_selection_reply))); |
ede4db72 | 1266 | |
7c6b2ea4 | 1267 | BLOCK_INPUT; |
a7b24d46 | 1268 | x_check_errors (display, "Cannot get selection: %s"); |
5a499696 | 1269 | x_uncatch_errors (display, count); |
7c6b2ea4 RS |
1270 | UNBLOCK_INPUT; |
1271 | ||
8e713be6 | 1272 | if (NILP (XCAR (reading_selection_reply))) |
606140dd | 1273 | error ("Timed out waiting for reply from selection owner"); |
8e713be6 | 1274 | if (EQ (XCAR (reading_selection_reply), Qlambda)) |
606140dd | 1275 | error ("No `%s' selection", XSYMBOL (selection_symbol)->name->data); |
ede4db72 RS |
1276 | |
1277 | /* Otherwise, the selection is waiting for us on the requested property. */ | |
1278 | return | |
5d0ba25b | 1279 | x_get_window_property_as_lisp_data (display, requestor_window, |
ede4db72 RS |
1280 | target_property, target_type, |
1281 | selection_atom); | |
1282 | } | |
1283 | \f | |
1284 | /* Subroutines of x_get_window_property_as_lisp_data */ | |
1285 | ||
4feb31b2 | 1286 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1287 | |
ede4db72 RS |
1288 | static void |
1289 | x_get_window_property (display, window, property, data_ret, bytes_ret, | |
1290 | actual_type_ret, actual_format_ret, actual_size_ret, | |
1291 | delete_p) | |
1292 | Display *display; | |
1293 | Window window; | |
1294 | Atom property; | |
1295 | unsigned char **data_ret; | |
1296 | int *bytes_ret; | |
1297 | Atom *actual_type_ret; | |
1298 | int *actual_format_ret; | |
1299 | unsigned long *actual_size_ret; | |
1300 | int delete_p; | |
1301 | { | |
1302 | int total_size; | |
1303 | unsigned long bytes_remaining; | |
1304 | int offset = 0; | |
1305 | unsigned char *tmp_data = 0; | |
1306 | int result; | |
1307 | int buffer_size = SELECTION_QUANTUM (display); | |
d9c0d4a3 GM |
1308 | |
1309 | if (buffer_size > MAX_SELECTION_QUANTUM) | |
1310 | buffer_size = MAX_SELECTION_QUANTUM; | |
ede4db72 RS |
1311 | |
1312 | BLOCK_INPUT; | |
d9c0d4a3 | 1313 | |
ede4db72 RS |
1314 | /* First probe the thing to find out how big it is. */ |
1315 | result = XGetWindowProperty (display, window, property, | |
137edb72 | 1316 | 0L, 0L, False, AnyPropertyType, |
ede4db72 RS |
1317 | actual_type_ret, actual_format_ret, |
1318 | actual_size_ret, | |
1319 | &bytes_remaining, &tmp_data); | |
ede4db72 RS |
1320 | if (result != Success) |
1321 | { | |
2f65feb6 | 1322 | UNBLOCK_INPUT; |
ede4db72 RS |
1323 | *data_ret = 0; |
1324 | *bytes_ret = 0; | |
1325 | return; | |
1326 | } | |
d9c0d4a3 | 1327 | |
0158abbc RS |
1328 | /* This was allocated by Xlib, so use XFree. */ |
1329 | XFree ((char *) tmp_data); | |
ede4db72 RS |
1330 | |
1331 | if (*actual_type_ret == None || *actual_format_ret == 0) | |
1332 | { | |
2f65feb6 | 1333 | UNBLOCK_INPUT; |
ede4db72 RS |
1334 | return; |
1335 | } | |
1336 | ||
1337 | total_size = bytes_remaining + 1; | |
1338 | *data_ret = (unsigned char *) xmalloc (total_size); | |
1339 | ||
2a1a4c9d | 1340 | /* Now read, until we've gotten it all. */ |
ede4db72 RS |
1341 | while (bytes_remaining) |
1342 | { | |
d9c0d4a3 | 1343 | #ifdef TRACE_SELECTION |
ede4db72 RS |
1344 | int last = bytes_remaining; |
1345 | #endif | |
1346 | result | |
1347 | = XGetWindowProperty (display, window, property, | |
137edb72 | 1348 | (long)offset/4, (long)buffer_size/4, |
2f65feb6 | 1349 | False, |
ede4db72 RS |
1350 | AnyPropertyType, |
1351 | actual_type_ret, actual_format_ret, | |
1352 | actual_size_ret, &bytes_remaining, &tmp_data); | |
d9c0d4a3 GM |
1353 | |
1354 | TRACE2 ("Read %ld bytes from property %s", | |
1355 | last - bytes_remaining, | |
1356 | XGetAtomName (display, property)); | |
1357 | ||
ede4db72 RS |
1358 | /* If this doesn't return Success at this point, it means that |
1359 | some clod deleted the selection while we were in the midst of | |
d9c0d4a3 GM |
1360 | reading it. Deal with that, I guess.... */ |
1361 | if (result != Success) | |
1362 | break; | |
ede4db72 RS |
1363 | *actual_size_ret *= *actual_format_ret / 8; |
1364 | bcopy (tmp_data, (*data_ret) + offset, *actual_size_ret); | |
1365 | offset += *actual_size_ret; | |
d9c0d4a3 | 1366 | |
0158abbc RS |
1367 | /* This was allocated by Xlib, so use XFree. */ |
1368 | XFree ((char *) tmp_data); | |
ede4db72 | 1369 | } |
2f65feb6 | 1370 | |
5c3a351a | 1371 | XFlush (display); |
ede4db72 RS |
1372 | UNBLOCK_INPUT; |
1373 | *bytes_ret = offset; | |
1374 | } | |
1375 | \f | |
4feb31b2 | 1376 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1377 | |
ede4db72 RS |
1378 | static void |
1379 | receive_incremental_selection (display, window, property, target_type, | |
1380 | min_size_bytes, data_ret, size_bytes_ret, | |
1381 | type_ret, format_ret, size_ret) | |
1382 | Display *display; | |
1383 | Window window; | |
1384 | Atom property; | |
1385 | Lisp_Object target_type; /* for error messages only */ | |
1386 | unsigned int min_size_bytes; | |
1387 | unsigned char **data_ret; | |
1388 | int *size_bytes_ret; | |
1389 | Atom *type_ret; | |
1390 | unsigned long *size_ret; | |
1391 | int *format_ret; | |
1392 | { | |
1393 | int offset = 0; | |
d1f21a66 | 1394 | struct prop_location *wait_object; |
ede4db72 RS |
1395 | *size_bytes_ret = min_size_bytes; |
1396 | *data_ret = (unsigned char *) xmalloc (*size_bytes_ret); | |
d9c0d4a3 GM |
1397 | |
1398 | TRACE1 ("Read %d bytes incrementally", min_size_bytes); | |
2f65feb6 RS |
1399 | |
1400 | /* At this point, we have read an INCR property. | |
1401 | Delete the property to ack it. | |
1402 | (But first, prepare to receive the next event in this handshake.) | |
ede4db72 RS |
1403 | |
1404 | Now, we must loop, waiting for the sending window to put a value on | |
1405 | that property, then reading the property, then deleting it to ack. | |
1406 | We are done when the sender places a property of length 0. | |
1407 | */ | |
2f65feb6 RS |
1408 | BLOCK_INPUT; |
1409 | XSelectInput (display, window, STANDARD_EVENT_SET | PropertyChangeMask); | |
d9c0d4a3 GM |
1410 | TRACE1 (" Delete property %s", |
1411 | XSYMBOL (x_atom_to_symbol (display, property))->name->data); | |
2f65feb6 | 1412 | XDeleteProperty (display, window, property); |
d9c0d4a3 GM |
1413 | TRACE1 (" Expect new value of property %s", |
1414 | XSYMBOL (x_atom_to_symbol (display, property))->name->data); | |
d1f21a66 RS |
1415 | wait_object = expect_property_change (display, window, property, |
1416 | PropertyNewValue); | |
5c3a351a | 1417 | XFlush (display); |
2f65feb6 RS |
1418 | UNBLOCK_INPUT; |
1419 | ||
ede4db72 RS |
1420 | while (1) |
1421 | { | |
1422 | unsigned char *tmp_data; | |
1423 | int tmp_size_bytes; | |
d9c0d4a3 GM |
1424 | |
1425 | TRACE0 (" Wait for property change"); | |
d1f21a66 | 1426 | wait_for_property_change (wait_object); |
d9c0d4a3 | 1427 | |
ede4db72 | 1428 | /* expect it again immediately, because x_get_window_property may |
2a1a4c9d | 1429 | .. no it won't, I don't get it. |
d9c0d4a3 GM |
1430 | .. Ok, I get it now, the Xt code that implements INCR is broken. */ |
1431 | TRACE0 (" Get property value"); | |
ede4db72 RS |
1432 | x_get_window_property (display, window, property, |
1433 | &tmp_data, &tmp_size_bytes, | |
1434 | type_ret, format_ret, size_ret, 1); | |
1435 | ||
d9c0d4a3 GM |
1436 | TRACE1 (" Read increment of %d bytes", tmp_size_bytes); |
1437 | ||
ede4db72 RS |
1438 | if (tmp_size_bytes == 0) /* we're done */ |
1439 | { | |
d9c0d4a3 GM |
1440 | TRACE0 ("Done reading incrementally"); |
1441 | ||
2f65feb6 RS |
1442 | if (! waiting_for_other_props_on_window (display, window)) |
1443 | XSelectInput (display, window, STANDARD_EVENT_SET); | |
d1f21a66 | 1444 | unexpect_property_change (wait_object); |
4feb31b2 | 1445 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1446 | calls xmalloc itself. */ |
4feb31b2 | 1447 | if (tmp_data) xfree (tmp_data); |
ede4db72 RS |
1448 | break; |
1449 | } | |
2f65feb6 RS |
1450 | |
1451 | BLOCK_INPUT; | |
d9c0d4a3 GM |
1452 | TRACE1 (" ACK by deleting property %s", |
1453 | XGetAtomName (display, property)); | |
2f65feb6 | 1454 | XDeleteProperty (display, window, property); |
d1f21a66 RS |
1455 | wait_object = expect_property_change (display, window, property, |
1456 | PropertyNewValue); | |
5c3a351a | 1457 | XFlush (display); |
2f65feb6 RS |
1458 | UNBLOCK_INPUT; |
1459 | ||
ede4db72 RS |
1460 | if (*size_bytes_ret < offset + tmp_size_bytes) |
1461 | { | |
ede4db72 RS |
1462 | *size_bytes_ret = offset + tmp_size_bytes; |
1463 | *data_ret = (unsigned char *) xrealloc (*data_ret, *size_bytes_ret); | |
1464 | } | |
d9c0d4a3 | 1465 | |
018cfa07 | 1466 | bcopy (tmp_data, (*data_ret) + offset, tmp_size_bytes); |
ede4db72 | 1467 | offset += tmp_size_bytes; |
d9c0d4a3 | 1468 | |
4feb31b2 | 1469 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1470 | calls xmalloc itself. */ |
4feb31b2 | 1471 | xfree (tmp_data); |
ede4db72 RS |
1472 | } |
1473 | } | |
d9c0d4a3 | 1474 | |
ede4db72 RS |
1475 | \f |
1476 | /* Once a requested selection is "ready" (we got a SelectionNotify event), | |
1477 | fetch value from property PROPERTY of X window WINDOW on display DISPLAY. | |
1478 | TARGET_TYPE and SELECTION_ATOM are used in error message if this fails. */ | |
1479 | ||
1480 | static Lisp_Object | |
1481 | x_get_window_property_as_lisp_data (display, window, property, target_type, | |
1482 | selection_atom) | |
1483 | Display *display; | |
1484 | Window window; | |
1485 | Atom property; | |
1486 | Lisp_Object target_type; /* for error messages only */ | |
1487 | Atom selection_atom; /* for error messages only */ | |
1488 | { | |
1489 | Atom actual_type; | |
1490 | int actual_format; | |
1491 | unsigned long actual_size; | |
1492 | unsigned char *data = 0; | |
1493 | int bytes = 0; | |
1494 | Lisp_Object val; | |
5c3a351a | 1495 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 | 1496 | |
d9c0d4a3 GM |
1497 | TRACE0 ("Reading selection data"); |
1498 | ||
ede4db72 RS |
1499 | x_get_window_property (display, window, property, &data, &bytes, |
1500 | &actual_type, &actual_format, &actual_size, 1); | |
1501 | if (! data) | |
1502 | { | |
1503 | int there_is_a_selection_owner; | |
1504 | BLOCK_INPUT; | |
1505 | there_is_a_selection_owner | |
1506 | = XGetSelectionOwner (display, selection_atom); | |
1507 | UNBLOCK_INPUT; | |
5a499696 RS |
1508 | Fsignal (Qerror, |
1509 | there_is_a_selection_owner | |
1510 | ? Fcons (build_string ("selection owner couldn't convert"), | |
ede4db72 RS |
1511 | actual_type |
1512 | ? Fcons (target_type, | |
d9c0d4a3 | 1513 | Fcons (x_atom_to_symbol (display, |
5c3a351a | 1514 | actual_type), |
ede4db72 RS |
1515 | Qnil)) |
1516 | : Fcons (target_type, Qnil)) | |
5a499696 | 1517 | : Fcons (build_string ("no selection"), |
d9c0d4a3 | 1518 | Fcons (x_atom_to_symbol (display, |
5a499696 RS |
1519 | selection_atom), |
1520 | Qnil))); | |
ede4db72 RS |
1521 | } |
1522 | ||
5c3a351a | 1523 | if (actual_type == dpyinfo->Xatom_INCR) |
ede4db72 RS |
1524 | { |
1525 | /* That wasn't really the data, just the beginning. */ | |
1526 | ||
1527 | unsigned int min_size_bytes = * ((unsigned int *) data); | |
1528 | BLOCK_INPUT; | |
4feb31b2 | 1529 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1530 | calls xmalloc itself. */ |
4feb31b2 | 1531 | xfree ((char *) data); |
ede4db72 RS |
1532 | UNBLOCK_INPUT; |
1533 | receive_incremental_selection (display, window, property, target_type, | |
1534 | min_size_bytes, &data, &bytes, | |
1535 | &actual_type, &actual_format, | |
1536 | &actual_size); | |
1537 | } | |
1538 | ||
2f65feb6 | 1539 | BLOCK_INPUT; |
d9c0d4a3 | 1540 | TRACE1 (" Delete property %s", XGetAtomName (display, property)); |
2f65feb6 | 1541 | XDeleteProperty (display, window, property); |
5c3a351a | 1542 | XFlush (display); |
2f65feb6 RS |
1543 | UNBLOCK_INPUT; |
1544 | ||
ede4db72 RS |
1545 | /* It's been read. Now convert it to a lisp object in some semi-rational |
1546 | manner. */ | |
1547 | val = selection_data_to_lisp_data (display, data, bytes, | |
1548 | actual_type, actual_format); | |
1549 | ||
4feb31b2 | 1550 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1551 | calls xmalloc itself. */ |
4feb31b2 | 1552 | xfree ((char *) data); |
ede4db72 RS |
1553 | return val; |
1554 | } | |
1555 | \f | |
1556 | /* These functions convert from the selection data read from the server into | |
1557 | something that we can use from Lisp, and vice versa. | |
1558 | ||
1559 | Type: Format: Size: Lisp Type: | |
1560 | ----- ------- ----- ----------- | |
1561 | * 8 * String | |
1562 | ATOM 32 1 Symbol | |
1563 | ATOM 32 > 1 Vector of Symbols | |
1564 | * 16 1 Integer | |
1565 | * 16 > 1 Vector of Integers | |
1566 | * 32 1 if <=16 bits: Integer | |
1567 | if > 16 bits: Cons of top16, bot16 | |
1568 | * 32 > 1 Vector of the above | |
1569 | ||
1570 | When converting a Lisp number to C, it is assumed to be of format 16 if | |
1571 | it is an integer, and of format 32 if it is a cons of two integers. | |
1572 | ||
1573 | When converting a vector of numbers from Lisp to C, it is assumed to be | |
1574 | of format 16 if every element in the vector is an integer, and is assumed | |
1575 | to be of format 32 if any element is a cons of two integers. | |
1576 | ||
1577 | When converting an object to C, it may be of the form (SYMBOL . <data>) | |
1578 | where SYMBOL is what we should claim that the type is. Format and | |
1579 | representation are as above. */ | |
1580 | ||
1581 | ||
1582 | ||
1583 | static Lisp_Object | |
1584 | selection_data_to_lisp_data (display, data, size, type, format) | |
1585 | Display *display; | |
1586 | unsigned char *data; | |
1587 | Atom type; | |
1588 | int size, format; | |
1589 | { | |
5c3a351a | 1590 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 | 1591 | |
5c3a351a | 1592 | if (type == dpyinfo->Xatom_NULL) |
ede4db72 RS |
1593 | return QNULL; |
1594 | ||
1595 | /* Convert any 8-bit data to a string, for compactness. */ | |
1596 | else if (format == 8) | |
e6c7c988 KH |
1597 | { |
1598 | Lisp_Object str; | |
f78da51e KH |
1599 | int require_encoding = 0; |
1600 | ||
d24e26b1 RS |
1601 | if ( |
1602 | #if 1 | |
1603 | 1 | |
1604 | #else | |
1605 | ! NILP (buffer_defaults.enable_multibyte_characters) | |
1606 | #endif | |
1607 | ) | |
f78da51e | 1608 | { |
5faa9b45 KH |
1609 | /* If TYPE is `TEXT' or `COMPOUND_TEXT', we should decode |
1610 | DATA to Emacs internal format because DATA may be encoded | |
1611 | in compound text format. In addtion, if TYPE is `STRING' | |
1612 | and DATA contains any 8-bit Latin-1 code, we should also | |
1613 | decode it. */ | |
1614 | if (type == dpyinfo->Xatom_TEXT | |
1615 | || type == dpyinfo->Xatom_COMPOUND_TEXT) | |
1616 | require_encoding = 1; | |
1617 | else if (type == XA_STRING) | |
f78da51e | 1618 | { |
5faa9b45 KH |
1619 | int i; |
1620 | for (i = 0; i < size; i++) | |
f78da51e | 1621 | { |
5faa9b45 KH |
1622 | if (data[i] >= 0x80) |
1623 | { | |
1624 | require_encoding = 1; | |
1625 | break; | |
1626 | } | |
f78da51e KH |
1627 | } |
1628 | } | |
1629 | } | |
1630 | if (!require_encoding) | |
061bda8d KH |
1631 | { |
1632 | str = make_unibyte_string ((char *) data, size); | |
1633 | Vlast_coding_system_used = Qraw_text; | |
1634 | } | |
e6c7c988 KH |
1635 | else |
1636 | { | |
9391d06a | 1637 | int bufsize; |
e6c7c988 KH |
1638 | unsigned char *buf; |
1639 | struct coding_system coding; | |
e6c7c988 | 1640 | |
16cd5029 KH |
1641 | if (NILP (Vnext_selection_coding_system)) |
1642 | Vnext_selection_coding_system = Vselection_coding_system; | |
2584c9ec | 1643 | setup_coding_system |
16cd5029 | 1644 | (Fcheck_coding_system(Vnext_selection_coding_system), &coding); |
9846d9db KH |
1645 | coding.src_multibyte = 0; |
1646 | coding.dst_multibyte = 1; | |
16cd5029 | 1647 | Vnext_selection_coding_system = Qnil; |
9391d06a | 1648 | coding.mode |= CODING_MODE_LAST_BLOCK; |
e6c7c988 KH |
1649 | bufsize = decoding_buffer_size (&coding, size); |
1650 | buf = (unsigned char *) xmalloc (bufsize); | |
9391d06a | 1651 | decode_coding (&coding, data, buf, size, bufsize); |
9846d9db KH |
1652 | str = make_string_from_bytes ((char *) buf, |
1653 | coding.produced_char, coding.produced); | |
4feb31b2 | 1654 | xfree (buf); |
fbbe0ace EZ |
1655 | |
1656 | if (SYMBOLP (coding.post_read_conversion) | |
1657 | && !NILP (Ffboundp (coding.post_read_conversion))) | |
ecb7ac21 | 1658 | str = run_pre_post_conversion_on_str (str, &coding, 0); |
061bda8d | 1659 | Vlast_coding_system_used = coding.symbol; |
e6c7c988 | 1660 | } |
0caef0ec | 1661 | compose_chars_in_text (0, XSTRING (str)->size, str); |
e6c7c988 KH |
1662 | return str; |
1663 | } | |
ede4db72 RS |
1664 | /* Convert a single atom to a Lisp_Symbol. Convert a set of atoms to |
1665 | a vector of symbols. | |
1666 | */ | |
1667 | else if (type == XA_ATOM) | |
1668 | { | |
1669 | int i; | |
1670 | if (size == sizeof (Atom)) | |
d9c0d4a3 | 1671 | return x_atom_to_symbol (display, *((Atom *) data)); |
ede4db72 RS |
1672 | else |
1673 | { | |
e607a484 RS |
1674 | Lisp_Object v = Fmake_vector (make_number (size / sizeof (Atom)), |
1675 | make_number (0)); | |
ede4db72 | 1676 | for (i = 0; i < size / sizeof (Atom); i++) |
e607a484 | 1677 | Faset (v, make_number (i), |
d9c0d4a3 | 1678 | x_atom_to_symbol (display, ((Atom *) data) [i])); |
ede4db72 RS |
1679 | return v; |
1680 | } | |
1681 | } | |
1682 | ||
1683 | /* Convert a single 16 or small 32 bit number to a Lisp_Int. | |
1684 | If the number is > 16 bits, convert it to a cons of integers, | |
1685 | 16 bits in each half. | |
1686 | */ | |
1687 | else if (format == 32 && size == sizeof (long)) | |
1688 | return long_to_cons (((unsigned long *) data) [0]); | |
1689 | else if (format == 16 && size == sizeof (short)) | |
1690 | return make_number ((int) (((unsigned short *) data) [0])); | |
1691 | ||
1692 | /* Convert any other kind of data to a vector of numbers, represented | |
1693 | as above (as an integer, or a cons of two 16 bit integers.) | |
1694 | */ | |
1695 | else if (format == 16) | |
1696 | { | |
1697 | int i; | |
937a3875 RS |
1698 | Lisp_Object v; |
1699 | v = Fmake_vector (make_number (size / 2), make_number (0)); | |
1700 | for (i = 0; i < size / 2; i++) | |
ede4db72 RS |
1701 | { |
1702 | int j = (int) ((unsigned short *) data) [i]; | |
e607a484 | 1703 | Faset (v, make_number (i), make_number (j)); |
ede4db72 RS |
1704 | } |
1705 | return v; | |
1706 | } | |
1707 | else | |
1708 | { | |
1709 | int i; | |
e607a484 | 1710 | Lisp_Object v = Fmake_vector (make_number (size / 4), make_number (0)); |
ede4db72 RS |
1711 | for (i = 0; i < size / 4; i++) |
1712 | { | |
1713 | unsigned long j = ((unsigned long *) data) [i]; | |
e607a484 | 1714 | Faset (v, make_number (i), long_to_cons (j)); |
ede4db72 RS |
1715 | } |
1716 | return v; | |
1717 | } | |
1718 | } | |
1719 | ||
1720 | ||
4feb31b2 | 1721 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1722 | |
ede4db72 RS |
1723 | static void |
1724 | lisp_data_to_selection_data (display, obj, | |
aca39f42 RS |
1725 | data_ret, type_ret, size_ret, |
1726 | format_ret, nofree_ret) | |
ede4db72 RS |
1727 | Display *display; |
1728 | Lisp_Object obj; | |
1729 | unsigned char **data_ret; | |
1730 | Atom *type_ret; | |
1731 | unsigned int *size_ret; | |
1732 | int *format_ret; | |
aca39f42 | 1733 | int *nofree_ret; |
ede4db72 RS |
1734 | { |
1735 | Lisp_Object type = Qnil; | |
5c3a351a | 1736 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
aca39f42 RS |
1737 | |
1738 | *nofree_ret = 0; | |
1739 | ||
8e713be6 | 1740 | if (CONSP (obj) && SYMBOLP (XCAR (obj))) |
ede4db72 | 1741 | { |
8e713be6 KR |
1742 | type = XCAR (obj); |
1743 | obj = XCDR (obj); | |
1744 | if (CONSP (obj) && NILP (XCDR (obj))) | |
1745 | obj = XCAR (obj); | |
ede4db72 RS |
1746 | } |
1747 | ||
1748 | if (EQ (obj, QNULL) || (EQ (type, QNULL))) | |
1749 | { /* This is not the same as declining */ | |
1750 | *format_ret = 32; | |
1751 | *size_ret = 0; | |
1752 | *data_ret = 0; | |
1753 | type = QNULL; | |
1754 | } | |
1755 | else if (STRINGP (obj)) | |
1756 | { | |
e6c7c988 KH |
1757 | /* Since we are now handling multilingual text, we must consider |
1758 | sending back compound text. */ | |
11270583 | 1759 | int stringp; |
9846d9db | 1760 | |
2b38b37e KH |
1761 | if (NILP (Vnext_selection_coding_system)) |
1762 | Vnext_selection_coding_system = Vselection_coding_system; | |
e6c7c988 | 1763 | |
2b38b37e | 1764 | *format_ret = 8; |
fbbe0ace | 1765 | *data_ret = x_encode_text (obj, Vnext_selection_coding_system, 1, |
11270583 | 1766 | (int *) size_ret, &stringp); |
2b38b37e | 1767 | *nofree_ret = (*data_ret == XSTRING (obj)->data); |
fbbe0ace | 1768 | if (EQ (Vnext_selection_coding_system, |
23e16093 | 1769 | Qcompound_text_no_extensions)) |
fbbe0ace EZ |
1770 | type = QCOMPOUND_TEXT; |
1771 | else if (NILP (type)) | |
11270583 | 1772 | type = (stringp ? QSTRING : QCOMPOUND_TEXT); |
2b38b37e KH |
1773 | Vlast_coding_system_used = (*nofree_ret |
1774 | ? Qraw_text | |
1775 | : Vnext_selection_coding_system); | |
1776 | Vnext_selection_coding_system = Qnil; | |
ede4db72 RS |
1777 | } |
1778 | else if (SYMBOLP (obj)) | |
1779 | { | |
1780 | *format_ret = 32; | |
1781 | *size_ret = 1; | |
1782 | *data_ret = (unsigned char *) xmalloc (sizeof (Atom) + 1); | |
1783 | (*data_ret) [sizeof (Atom)] = 0; | |
5c3a351a | 1784 | (*(Atom **) data_ret) [0] = symbol_to_x_atom (dpyinfo, display, obj); |
ede4db72 RS |
1785 | if (NILP (type)) type = QATOM; |
1786 | } | |
7da64e5c | 1787 | else if (INTEGERP (obj) |
ede4db72 RS |
1788 | && XINT (obj) < 0xFFFF |
1789 | && XINT (obj) > -0xFFFF) | |
1790 | { | |
1791 | *format_ret = 16; | |
1792 | *size_ret = 1; | |
1793 | *data_ret = (unsigned char *) xmalloc (sizeof (short) + 1); | |
1794 | (*data_ret) [sizeof (short)] = 0; | |
1795 | (*(short **) data_ret) [0] = (short) XINT (obj); | |
1796 | if (NILP (type)) type = QINTEGER; | |
1797 | } | |
a87ed99c | 1798 | else if (INTEGERP (obj) |
8e713be6 KR |
1799 | || (CONSP (obj) && INTEGERP (XCAR (obj)) |
1800 | && (INTEGERP (XCDR (obj)) | |
1801 | || (CONSP (XCDR (obj)) | |
1802 | && INTEGERP (XCAR (XCDR (obj))))))) | |
ede4db72 RS |
1803 | { |
1804 | *format_ret = 32; | |
1805 | *size_ret = 1; | |
1806 | *data_ret = (unsigned char *) xmalloc (sizeof (long) + 1); | |
1807 | (*data_ret) [sizeof (long)] = 0; | |
1808 | (*(unsigned long **) data_ret) [0] = cons_to_long (obj); | |
1809 | if (NILP (type)) type = QINTEGER; | |
1810 | } | |
1811 | else if (VECTORP (obj)) | |
1812 | { | |
1813 | /* Lisp_Vectors may represent a set of ATOMs; | |
1814 | a set of 16 or 32 bit INTEGERs; | |
1815 | or a set of ATOM_PAIRs (represented as [[A1 A2] [A3 A4] ...] | |
1816 | */ | |
1817 | int i; | |
1818 | ||
1819 | if (SYMBOLP (XVECTOR (obj)->contents [0])) | |
1820 | /* This vector is an ATOM set */ | |
1821 | { | |
1822 | if (NILP (type)) type = QATOM; | |
1823 | *size_ret = XVECTOR (obj)->size; | |
1824 | *format_ret = 32; | |
1825 | *data_ret = (unsigned char *) xmalloc ((*size_ret) * sizeof (Atom)); | |
1826 | for (i = 0; i < *size_ret; i++) | |
1827 | if (SYMBOLP (XVECTOR (obj)->contents [i])) | |
1828 | (*(Atom **) data_ret) [i] | |
5c3a351a | 1829 | = symbol_to_x_atom (dpyinfo, display, XVECTOR (obj)->contents [i]); |
ede4db72 RS |
1830 | else |
1831 | Fsignal (Qerror, /* Qselection_error */ | |
1832 | Fcons (build_string | |
1833 | ("all elements of selection vector must have same type"), | |
1834 | Fcons (obj, Qnil))); | |
1835 | } | |
1836 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1837 | else if (VECTORP (XVECTOR (obj)->contents [0])) | |
1838 | /* This vector is an ATOM_PAIR set */ | |
1839 | { | |
1840 | if (NILP (type)) type = QATOM_PAIR; | |
1841 | *size_ret = XVECTOR (obj)->size; | |
1842 | *format_ret = 32; | |
1843 | *data_ret = (unsigned char *) | |
1844 | xmalloc ((*size_ret) * sizeof (Atom) * 2); | |
1845 | for (i = 0; i < *size_ret; i++) | |
1846 | if (VECTORP (XVECTOR (obj)->contents [i])) | |
1847 | { | |
1848 | Lisp_Object pair = XVECTOR (obj)->contents [i]; | |
1849 | if (XVECTOR (pair)->size != 2) | |
1850 | Fsignal (Qerror, | |
1851 | Fcons (build_string | |
1852 | ("elements of the vector must be vectors of exactly two elements"), | |
1853 | Fcons (pair, Qnil))); | |
1854 | ||
1855 | (*(Atom **) data_ret) [i * 2] | |
5c3a351a RS |
1856 | = symbol_to_x_atom (dpyinfo, display, |
1857 | XVECTOR (pair)->contents [0]); | |
ede4db72 | 1858 | (*(Atom **) data_ret) [(i * 2) + 1] |
5c3a351a RS |
1859 | = symbol_to_x_atom (dpyinfo, display, |
1860 | XVECTOR (pair)->contents [1]); | |
ede4db72 RS |
1861 | } |
1862 | else | |
1863 | Fsignal (Qerror, | |
1864 | Fcons (build_string | |
1865 | ("all elements of the vector must be of the same type"), | |
1866 | Fcons (obj, Qnil))); | |
1867 | ||
1868 | } | |
1869 | #endif | |
1870 | else | |
1871 | /* This vector is an INTEGER set, or something like it */ | |
1872 | { | |
1873 | *size_ret = XVECTOR (obj)->size; | |
1874 | if (NILP (type)) type = QINTEGER; | |
1875 | *format_ret = 16; | |
1876 | for (i = 0; i < *size_ret; i++) | |
1877 | if (CONSP (XVECTOR (obj)->contents [i])) | |
1878 | *format_ret = 32; | |
7da64e5c | 1879 | else if (!INTEGERP (XVECTOR (obj)->contents [i])) |
ede4db72 RS |
1880 | Fsignal (Qerror, /* Qselection_error */ |
1881 | Fcons (build_string | |
1882 | ("elements of selection vector must be integers or conses of integers"), | |
1883 | Fcons (obj, Qnil))); | |
1884 | ||
1885 | *data_ret = (unsigned char *) xmalloc (*size_ret * (*format_ret/8)); | |
1886 | for (i = 0; i < *size_ret; i++) | |
1887 | if (*format_ret == 32) | |
1888 | (*((unsigned long **) data_ret)) [i] | |
1889 | = cons_to_long (XVECTOR (obj)->contents [i]); | |
1890 | else | |
1891 | (*((unsigned short **) data_ret)) [i] | |
1892 | = (unsigned short) cons_to_long (XVECTOR (obj)->contents [i]); | |
1893 | } | |
1894 | } | |
1895 | else | |
1896 | Fsignal (Qerror, /* Qselection_error */ | |
1897 | Fcons (build_string ("unrecognised selection data"), | |
1898 | Fcons (obj, Qnil))); | |
1899 | ||
5c3a351a | 1900 | *type_ret = symbol_to_x_atom (dpyinfo, display, type); |
ede4db72 RS |
1901 | } |
1902 | ||
1903 | static Lisp_Object | |
1904 | clean_local_selection_data (obj) | |
1905 | Lisp_Object obj; | |
1906 | { | |
1907 | if (CONSP (obj) | |
8e713be6 KR |
1908 | && INTEGERP (XCAR (obj)) |
1909 | && CONSP (XCDR (obj)) | |
1910 | && INTEGERP (XCAR (XCDR (obj))) | |
1911 | && NILP (XCDR (XCDR (obj)))) | |
1912 | obj = Fcons (XCAR (obj), XCDR (obj)); | |
ede4db72 RS |
1913 | |
1914 | if (CONSP (obj) | |
8e713be6 KR |
1915 | && INTEGERP (XCAR (obj)) |
1916 | && INTEGERP (XCDR (obj))) | |
ede4db72 | 1917 | { |
8e713be6 KR |
1918 | if (XINT (XCAR (obj)) == 0) |
1919 | return XCDR (obj); | |
1920 | if (XINT (XCAR (obj)) == -1) | |
1921 | return make_number (- XINT (XCDR (obj))); | |
ede4db72 RS |
1922 | } |
1923 | if (VECTORP (obj)) | |
1924 | { | |
1925 | int i; | |
1926 | int size = XVECTOR (obj)->size; | |
1927 | Lisp_Object copy; | |
1928 | if (size == 1) | |
1929 | return clean_local_selection_data (XVECTOR (obj)->contents [0]); | |
e607a484 | 1930 | copy = Fmake_vector (make_number (size), Qnil); |
ede4db72 RS |
1931 | for (i = 0; i < size; i++) |
1932 | XVECTOR (copy)->contents [i] | |
1933 | = clean_local_selection_data (XVECTOR (obj)->contents [i]); | |
1934 | return copy; | |
1935 | } | |
1936 | return obj; | |
1937 | } | |
1938 | \f | |
1939 | /* Called from XTread_socket to handle SelectionNotify events. | |
606140dd KH |
1940 | If it's the selection we are waiting for, stop waiting |
1941 | by setting the car of reading_selection_reply to non-nil. | |
1942 | We store t there if the reply is successful, lambda if not. */ | |
ede4db72 RS |
1943 | |
1944 | void | |
1945 | x_handle_selection_notify (event) | |
1946 | XSelectionEvent *event; | |
1947 | { | |
5d0ba25b | 1948 | if (event->requestor != reading_selection_window) |
ede4db72 RS |
1949 | return; |
1950 | if (event->selection != reading_which_selection) | |
1951 | return; | |
1952 | ||
d9c0d4a3 | 1953 | TRACE0 ("Received SelectionNotify"); |
f3fbd155 KR |
1954 | XSETCAR (reading_selection_reply, |
1955 | (event->property != 0 ? Qt : Qlambda)); | |
ede4db72 RS |
1956 | } |
1957 | ||
1958 | \f | |
a0d76c27 | 1959 | DEFUN ("x-own-selection-internal", Fx_own_selection_internal, |
8c1a1077 PJ |
1960 | Sx_own_selection_internal, 2, 2, 0, |
1961 | doc: /* Assert an X selection of the given TYPE with the given VALUE. | |
1962 | TYPE is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
1963 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
1964 | VALUE is typically a string, or a cons of two markers, but may be | |
1965 | anything that the functions on `selection-converter-alist' know about. */) | |
1966 | (selection_name, selection_value) | |
ede4db72 RS |
1967 | Lisp_Object selection_name, selection_value; |
1968 | { | |
703e0710 | 1969 | check_x (); |
b7826503 | 1970 | CHECK_SYMBOL (selection_name); |
606140dd | 1971 | if (NILP (selection_value)) error ("selection-value may not be nil"); |
ede4db72 RS |
1972 | x_own_selection (selection_name, selection_value); |
1973 | return selection_value; | |
1974 | } | |
1975 | ||
1976 | ||
1977 | /* Request the selection value from the owner. If we are the owner, | |
1978 | simply return our selection value. If we are not the owner, this | |
1979 | will block until all of the data has arrived. */ | |
1980 | ||
a0d76c27 | 1981 | DEFUN ("x-get-selection-internal", Fx_get_selection_internal, |
8c1a1077 PJ |
1982 | Sx_get_selection_internal, 2, 2, 0, |
1983 | doc: /* Return text selected from some X window. | |
1984 | SELECTION is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
1985 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
1986 | TYPE is the type of data desired, typically `STRING'. */) | |
1987 | (selection_symbol, target_type) | |
ede4db72 RS |
1988 | Lisp_Object selection_symbol, target_type; |
1989 | { | |
1990 | Lisp_Object val = Qnil; | |
1991 | struct gcpro gcpro1, gcpro2; | |
1992 | GCPRO2 (target_type, val); /* we store newly consed data into these */ | |
703e0710 | 1993 | check_x (); |
b7826503 | 1994 | CHECK_SYMBOL (selection_symbol); |
ede4db72 RS |
1995 | |
1996 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1997 | if (CONSP (target_type) | |
8e713be6 | 1998 | && XCAR (target_type) == QMULTIPLE) |
ede4db72 | 1999 | { |
b7826503 | 2000 | CHECK_VECTOR (XCDR (target_type)); |
ede4db72 RS |
2001 | /* So we don't destructively modify this... */ |
2002 | target_type = copy_multiple_data (target_type); | |
2003 | } | |
2004 | else | |
2005 | #endif | |
b7826503 | 2006 | CHECK_SYMBOL (target_type); |
ede4db72 RS |
2007 | |
2008 | val = x_get_local_selection (selection_symbol, target_type); | |
2009 | ||
2010 | if (NILP (val)) | |
2011 | { | |
2012 | val = x_get_foreign_selection (selection_symbol, target_type); | |
2013 | goto DONE; | |
2014 | } | |
2015 | ||
2016 | if (CONSP (val) | |
8e713be6 | 2017 | && SYMBOLP (XCAR (val))) |
ede4db72 | 2018 | { |
8e713be6 KR |
2019 | val = XCDR (val); |
2020 | if (CONSP (val) && NILP (XCDR (val))) | |
2021 | val = XCAR (val); | |
ede4db72 RS |
2022 | } |
2023 | val = clean_local_selection_data (val); | |
2024 | DONE: | |
2025 | UNGCPRO; | |
2026 | return val; | |
2027 | } | |
2028 | ||
a0d76c27 | 2029 | DEFUN ("x-disown-selection-internal", Fx_disown_selection_internal, |
8c1a1077 PJ |
2030 | Sx_disown_selection_internal, 1, 2, 0, |
2031 | doc: /* If we own the selection SELECTION, disown it. | |
2032 | Disowning it means there is no such selection. */) | |
2033 | (selection, time) | |
ede4db72 RS |
2034 | Lisp_Object selection; |
2035 | Lisp_Object time; | |
2036 | { | |
ede4db72 RS |
2037 | Time timestamp; |
2038 | Atom selection_atom; | |
44d46531 | 2039 | struct selection_input_event event; |
3834c318 | 2040 | Display *display; |
5c3a351a | 2041 | struct x_display_info *dpyinfo; |
378c33ca | 2042 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2043 | |
703e0710 | 2044 | check_x (); |
378c33ca GM |
2045 | display = FRAME_X_DISPLAY (sf); |
2046 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
b7826503 | 2047 | CHECK_SYMBOL (selection); |
ede4db72 | 2048 | if (NILP (time)) |
7da64e5c | 2049 | timestamp = last_event_timestamp; |
ede4db72 RS |
2050 | else |
2051 | timestamp = cons_to_long (time); | |
2052 | ||
2053 | if (NILP (assq_no_quit (selection, Vselection_alist))) | |
2054 | return Qnil; /* Don't disown the selection when we're not the owner. */ | |
2055 | ||
5c3a351a | 2056 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection); |
ede4db72 RS |
2057 | |
2058 | BLOCK_INPUT; | |
2059 | XSetSelectionOwner (display, selection_atom, None, timestamp); | |
2060 | UNBLOCK_INPUT; | |
2061 | ||
eb8c3be9 | 2062 | /* It doesn't seem to be guaranteed that a SelectionClear event will be |
ede4db72 RS |
2063 | generated for a window which owns the selection when that window sets |
2064 | the selection owner to None. The NCD server does, the MIT Sun4 server | |
2065 | doesn't. So we synthesize one; this means we might get two, but | |
2066 | that's ok, because the second one won't have any effect. */ | |
8d47f8c4 RS |
2067 | SELECTION_EVENT_DISPLAY (&event) = display; |
2068 | SELECTION_EVENT_SELECTION (&event) = selection_atom; | |
2069 | SELECTION_EVENT_TIME (&event) = timestamp; | |
44d46531 | 2070 | x_handle_selection_clear ((struct input_event *) &event); |
ede4db72 RS |
2071 | |
2072 | return Qt; | |
2073 | } | |
2074 | ||
a87ed99c RS |
2075 | /* Get rid of all the selections in buffer BUFFER. |
2076 | This is used when we kill a buffer. */ | |
2077 | ||
2078 | void | |
2079 | x_disown_buffer_selections (buffer) | |
2080 | Lisp_Object buffer; | |
2081 | { | |
2082 | Lisp_Object tail; | |
2083 | struct buffer *buf = XBUFFER (buffer); | |
2084 | ||
8e713be6 | 2085 | for (tail = Vselection_alist; CONSP (tail); tail = XCDR (tail)) |
a87ed99c RS |
2086 | { |
2087 | Lisp_Object elt, value; | |
8e713be6 KR |
2088 | elt = XCAR (tail); |
2089 | value = XCDR (elt); | |
2090 | if (CONSP (value) && MARKERP (XCAR (value)) | |
2091 | && XMARKER (XCAR (value))->buffer == buf) | |
2092 | Fx_disown_selection_internal (XCAR (elt), Qnil); | |
a87ed99c RS |
2093 | } |
2094 | } | |
ede4db72 RS |
2095 | |
2096 | DEFUN ("x-selection-owner-p", Fx_selection_owner_p, Sx_selection_owner_p, | |
8c1a1077 PJ |
2097 | 0, 1, 0, |
2098 | doc: /* Whether the current Emacs process owns the given X Selection. | |
2099 | The arg should be the name of the selection in question, typically one of | |
2100 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2101 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2102 | For convenience, the symbol nil is the same as `PRIMARY', | |
2103 | and t is the same as `SECONDARY'. */) | |
2104 | (selection) | |
ede4db72 RS |
2105 | Lisp_Object selection; |
2106 | { | |
703e0710 | 2107 | check_x (); |
b7826503 | 2108 | CHECK_SYMBOL (selection); |
ede4db72 RS |
2109 | if (EQ (selection, Qnil)) selection = QPRIMARY; |
2110 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
2111 | ||
2112 | if (NILP (Fassq (selection, Vselection_alist))) | |
2113 | return Qnil; | |
2114 | return Qt; | |
2115 | } | |
2116 | ||
2117 | DEFUN ("x-selection-exists-p", Fx_selection_exists_p, Sx_selection_exists_p, | |
8c1a1077 PJ |
2118 | 0, 1, 0, |
2119 | doc: /* Whether there is an owner for the given X Selection. | |
2120 | The arg should be the name of the selection in question, typically one of | |
2121 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2122 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2123 | For convenience, the symbol nil is the same as `PRIMARY', | |
2124 | and t is the same as `SECONDARY'. */) | |
2125 | (selection) | |
ede4db72 RS |
2126 | Lisp_Object selection; |
2127 | { | |
2128 | Window owner; | |
356ba514 | 2129 | Atom atom; |
3834c318 | 2130 | Display *dpy; |
378c33ca | 2131 | struct frame *sf = SELECTED_FRAME (); |
3834c318 | 2132 | |
b8c70430 | 2133 | /* It should be safe to call this before we have an X frame. */ |
378c33ca | 2134 | if (! FRAME_X_P (sf)) |
b8c70430 RS |
2135 | return Qnil; |
2136 | ||
378c33ca | 2137 | dpy = FRAME_X_DISPLAY (sf); |
b7826503 | 2138 | CHECK_SYMBOL (selection); |
ede4db72 RS |
2139 | if (!NILP (Fx_selection_owner_p (selection))) |
2140 | return Qt; | |
356ba514 RS |
2141 | if (EQ (selection, Qnil)) selection = QPRIMARY; |
2142 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
378c33ca | 2143 | atom = symbol_to_x_atom (FRAME_X_DISPLAY_INFO (sf), dpy, selection); |
356ba514 RS |
2144 | if (atom == 0) |
2145 | return Qnil; | |
ede4db72 | 2146 | BLOCK_INPUT; |
356ba514 | 2147 | owner = XGetSelectionOwner (dpy, atom); |
ede4db72 RS |
2148 | UNBLOCK_INPUT; |
2149 | return (owner ? Qt : Qnil); | |
2150 | } | |
2151 | ||
2152 | \f | |
2153 | #ifdef CUT_BUFFER_SUPPORT | |
2154 | ||
ede4db72 RS |
2155 | /* Ensure that all 8 cut buffers exist. ICCCM says we gotta... */ |
2156 | static void | |
2157 | initialize_cut_buffers (display, window) | |
2158 | Display *display; | |
2159 | Window window; | |
2160 | { | |
2161 | unsigned char *data = (unsigned char *) ""; | |
2162 | BLOCK_INPUT; | |
2163 | #define FROB(atom) XChangeProperty (display, window, atom, XA_STRING, 8, \ | |
2164 | PropModeAppend, data, 0) | |
2165 | FROB (XA_CUT_BUFFER0); | |
2166 | FROB (XA_CUT_BUFFER1); | |
2167 | FROB (XA_CUT_BUFFER2); | |
2168 | FROB (XA_CUT_BUFFER3); | |
2169 | FROB (XA_CUT_BUFFER4); | |
2170 | FROB (XA_CUT_BUFFER5); | |
2171 | FROB (XA_CUT_BUFFER6); | |
2172 | FROB (XA_CUT_BUFFER7); | |
2173 | #undef FROB | |
2174 | UNBLOCK_INPUT; | |
ede4db72 RS |
2175 | } |
2176 | ||
2177 | ||
b7826503 PJ |
2178 | #define CHECK_CUT_BUFFER(symbol) \ |
2179 | { CHECK_SYMBOL ((symbol)); \ | |
ede4db72 RS |
2180 | if (!EQ((symbol), QCUT_BUFFER0) && !EQ((symbol), QCUT_BUFFER1) \ |
2181 | && !EQ((symbol), QCUT_BUFFER2) && !EQ((symbol), QCUT_BUFFER3) \ | |
2182 | && !EQ((symbol), QCUT_BUFFER4) && !EQ((symbol), QCUT_BUFFER5) \ | |
2183 | && !EQ((symbol), QCUT_BUFFER6) && !EQ((symbol), QCUT_BUFFER7)) \ | |
2184 | Fsignal (Qerror, \ | |
a87ed99c | 2185 | Fcons (build_string ("doesn't name a cut buffer"), \ |
ede4db72 RS |
2186 | Fcons ((symbol), Qnil))); \ |
2187 | } | |
2188 | ||
a87ed99c | 2189 | DEFUN ("x-get-cut-buffer-internal", Fx_get_cut_buffer_internal, |
8c1a1077 PJ |
2190 | Sx_get_cut_buffer_internal, 1, 1, 0, |
2191 | doc: /* Returns the value of the named cut buffer (typically CUT_BUFFER0). */) | |
2192 | (buffer) | |
ede4db72 RS |
2193 | Lisp_Object buffer; |
2194 | { | |
3834c318 | 2195 | Window window; |
ede4db72 RS |
2196 | Atom buffer_atom; |
2197 | unsigned char *data; | |
2198 | int bytes; | |
2199 | Atom type; | |
2200 | int format; | |
2201 | unsigned long size; | |
2202 | Lisp_Object ret; | |
3834c318 | 2203 | Display *display; |
5c3a351a | 2204 | struct x_display_info *dpyinfo; |
378c33ca | 2205 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2206 | |
703e0710 | 2207 | check_x (); |
378c33ca GM |
2208 | display = FRAME_X_DISPLAY (sf); |
2209 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
3834c318 | 2210 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
b7826503 | 2211 | CHECK_CUT_BUFFER (buffer); |
5c3a351a | 2212 | buffer_atom = symbol_to_x_atom (dpyinfo, display, buffer); |
ede4db72 RS |
2213 | |
2214 | x_get_window_property (display, window, buffer_atom, &data, &bytes, | |
2215 | &type, &format, &size, 0); | |
22e00739 RS |
2216 | if (!data || !format) |
2217 | return Qnil; | |
ede4db72 RS |
2218 | |
2219 | if (format != 8 || type != XA_STRING) | |
2220 | Fsignal (Qerror, | |
2221 | Fcons (build_string ("cut buffer doesn't contain 8-bit data"), | |
d9c0d4a3 | 2222 | Fcons (x_atom_to_symbol (display, type), |
ede4db72 RS |
2223 | Fcons (make_number (format), Qnil)))); |
2224 | ||
2225 | ret = (bytes ? make_string ((char *) data, bytes) : Qnil); | |
4feb31b2 | 2226 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 2227 | calls xmalloc itself. */ |
4feb31b2 | 2228 | xfree (data); |
ede4db72 RS |
2229 | return ret; |
2230 | } | |
2231 | ||
2232 | ||
a87ed99c | 2233 | DEFUN ("x-store-cut-buffer-internal", Fx_store_cut_buffer_internal, |
8c1a1077 PJ |
2234 | Sx_store_cut_buffer_internal, 2, 2, 0, |
2235 | doc: /* Sets the value of the named cut buffer (typically CUT_BUFFER0). */) | |
2236 | (buffer, string) | |
ede4db72 RS |
2237 | Lisp_Object buffer, string; |
2238 | { | |
3834c318 | 2239 | Window window; |
ede4db72 RS |
2240 | Atom buffer_atom; |
2241 | unsigned char *data; | |
2242 | int bytes; | |
2243 | int bytes_remaining; | |
3834c318 RS |
2244 | int max_bytes; |
2245 | Display *display; | |
378c33ca | 2246 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2247 | |
703e0710 | 2248 | check_x (); |
378c33ca | 2249 | display = FRAME_X_DISPLAY (sf); |
3834c318 RS |
2250 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
2251 | ||
2252 | max_bytes = SELECTION_QUANTUM (display); | |
2253 | if (max_bytes > MAX_SELECTION_QUANTUM) | |
2254 | max_bytes = MAX_SELECTION_QUANTUM; | |
2255 | ||
b7826503 PJ |
2256 | CHECK_CUT_BUFFER (buffer); |
2257 | CHECK_STRING (string); | |
378c33ca | 2258 | buffer_atom = symbol_to_x_atom (FRAME_X_DISPLAY_INFO (sf), |
5c3a351a | 2259 | display, buffer); |
ede4db72 | 2260 | data = (unsigned char *) XSTRING (string)->data; |
fc932ac6 | 2261 | bytes = STRING_BYTES (XSTRING (string)); |
ede4db72 RS |
2262 | bytes_remaining = bytes; |
2263 | ||
378c33ca | 2264 | if (! FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized) |
04649dbc KH |
2265 | { |
2266 | initialize_cut_buffers (display, window); | |
378c33ca | 2267 | FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized = 1; |
04649dbc | 2268 | } |
ede4db72 RS |
2269 | |
2270 | BLOCK_INPUT; | |
10608c8c RS |
2271 | |
2272 | /* Don't mess up with an empty value. */ | |
2273 | if (!bytes_remaining) | |
2274 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
2275 | PropModeReplace, data, 0); | |
2276 | ||
ede4db72 RS |
2277 | while (bytes_remaining) |
2278 | { | |
2279 | int chunk = (bytes_remaining < max_bytes | |
2280 | ? bytes_remaining : max_bytes); | |
2281 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
2282 | (bytes_remaining == bytes | |
2283 | ? PropModeReplace | |
2284 | : PropModeAppend), | |
2285 | data, chunk); | |
2286 | data += chunk; | |
2287 | bytes_remaining -= chunk; | |
2288 | } | |
2289 | UNBLOCK_INPUT; | |
2290 | return string; | |
2291 | } | |
2292 | ||
2293 | ||
a87ed99c | 2294 | DEFUN ("x-rotate-cut-buffers-internal", Fx_rotate_cut_buffers_internal, |
8c1a1077 PJ |
2295 | Sx_rotate_cut_buffers_internal, 1, 1, 0, |
2296 | doc: /* Rotate the values of the cut buffers by the given number of step. | |
2297 | Positive means shift the values forward, negative means backward. */) | |
2298 | (n) | |
ede4db72 RS |
2299 | Lisp_Object n; |
2300 | { | |
3834c318 RS |
2301 | Window window; |
2302 | Atom props[8]; | |
2303 | Display *display; | |
378c33ca | 2304 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2305 | |
703e0710 | 2306 | check_x (); |
378c33ca | 2307 | display = FRAME_X_DISPLAY (sf); |
3834c318 | 2308 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
b7826503 | 2309 | CHECK_NUMBER (n); |
3834c318 RS |
2310 | if (XINT (n) == 0) |
2311 | return n; | |
378c33ca | 2312 | if (! FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized) |
04649dbc KH |
2313 | { |
2314 | initialize_cut_buffers (display, window); | |
378c33ca | 2315 | FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized = 1; |
04649dbc | 2316 | } |
3834c318 | 2317 | |
ede4db72 RS |
2318 | props[0] = XA_CUT_BUFFER0; |
2319 | props[1] = XA_CUT_BUFFER1; | |
2320 | props[2] = XA_CUT_BUFFER2; | |
2321 | props[3] = XA_CUT_BUFFER3; | |
2322 | props[4] = XA_CUT_BUFFER4; | |
2323 | props[5] = XA_CUT_BUFFER5; | |
2324 | props[6] = XA_CUT_BUFFER6; | |
2325 | props[7] = XA_CUT_BUFFER7; | |
2326 | BLOCK_INPUT; | |
2327 | XRotateWindowProperties (display, window, props, 8, XINT (n)); | |
2328 | UNBLOCK_INPUT; | |
2329 | return n; | |
2330 | } | |
2331 | ||
2332 | #endif | |
2333 | \f | |
ede4db72 RS |
2334 | void |
2335 | syms_of_xselect () | |
2336 | { | |
ede4db72 RS |
2337 | defsubr (&Sx_get_selection_internal); |
2338 | defsubr (&Sx_own_selection_internal); | |
2339 | defsubr (&Sx_disown_selection_internal); | |
2340 | defsubr (&Sx_selection_owner_p); | |
2341 | defsubr (&Sx_selection_exists_p); | |
2342 | ||
2343 | #ifdef CUT_BUFFER_SUPPORT | |
a87ed99c RS |
2344 | defsubr (&Sx_get_cut_buffer_internal); |
2345 | defsubr (&Sx_store_cut_buffer_internal); | |
2346 | defsubr (&Sx_rotate_cut_buffers_internal); | |
ede4db72 RS |
2347 | #endif |
2348 | ||
2349 | reading_selection_reply = Fcons (Qnil, Qnil); | |
2350 | staticpro (&reading_selection_reply); | |
2351 | reading_selection_window = 0; | |
2352 | reading_which_selection = 0; | |
2353 | ||
2354 | property_change_wait_list = 0; | |
2f65feb6 | 2355 | prop_location_identifier = 0; |
ede4db72 RS |
2356 | property_change_reply = Fcons (Qnil, Qnil); |
2357 | staticpro (&property_change_reply); | |
2358 | ||
2359 | Vselection_alist = Qnil; | |
2360 | staticpro (&Vselection_alist); | |
2361 | ||
2362 | DEFVAR_LISP ("selection-converter-alist", &Vselection_converter_alist, | |
8c1a1077 PJ |
2363 | doc: /* An alist associating X Windows selection-types with functions. |
2364 | These functions are called to convert the selection, with three args: | |
2365 | the name of the selection (typically `PRIMARY', `SECONDARY', or `CLIPBOARD'); | |
2366 | a desired type to which the selection should be converted; | |
2367 | and the local selection value (whatever was given to `x-own-selection'). | |
2368 | ||
2369 | The function should return the value to send to the X server | |
2370 | \(typically a string). A return value of nil | |
2371 | means that the conversion could not be done. | |
2372 | A return value which is the symbol `NULL' | |
2373 | means that a side-effect was executed, | |
2374 | and there is no meaningful selection value. */); | |
ede4db72 RS |
2375 | Vselection_converter_alist = Qnil; |
2376 | ||
2377 | DEFVAR_LISP ("x-lost-selection-hooks", &Vx_lost_selection_hooks, | |
8c1a1077 PJ |
2378 | doc: /* A list of functions to be called when Emacs loses an X selection. |
2379 | \(This happens when some other X client makes its own selection | |
2380 | or when a Lisp program explicitly clears the selection.) | |
2381 | The functions are called with one argument, the selection type | |
2382 | \(a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'). */); | |
ede4db72 RS |
2383 | Vx_lost_selection_hooks = Qnil; |
2384 | ||
2385 | DEFVAR_LISP ("x-sent-selection-hooks", &Vx_sent_selection_hooks, | |
8c1a1077 PJ |
2386 | doc: /* A list of functions to be called when Emacs answers a selection request. |
2387 | The functions are called with four arguments: | |
2388 | - the selection name (typically `PRIMARY', `SECONDARY', or `CLIPBOARD'); | |
2389 | - the selection-type which Emacs was asked to convert the | |
2390 | selection into before sending (for example, `STRING' or `LENGTH'); | |
2391 | - a flag indicating success or failure for responding to the request. | |
2392 | We might have failed (and declined the request) for any number of reasons, | |
2393 | including being asked for a selection that we no longer own, or being asked | |
2394 | to convert into a type that we don't know about or that is inappropriate. | |
2395 | This hook doesn't let you change the behavior of Emacs's selection replies, | |
2396 | it merely informs you that they have happened. */); | |
ede4db72 RS |
2397 | Vx_sent_selection_hooks = Qnil; |
2398 | ||
93e4ce1b | 2399 | DEFVAR_LISP ("selection-coding-system", &Vselection_coding_system, |
8c1a1077 PJ |
2400 | doc: /* Coding system for communicating with other X clients. |
2401 | When sending or receiving text via cut_buffer, selection, and clipboard, | |
2402 | the text is encoded or decoded by this coding system. | |
2403 | The default value is `compound-text'. */); | |
93e4ce1b | 2404 | Vselection_coding_system = intern ("compound-text"); |
2584c9ec | 2405 | |
16cd5029 | 2406 | DEFVAR_LISP ("next-selection-coding-system", &Vnext_selection_coding_system, |
8c1a1077 PJ |
2407 | doc: /* Coding system for the next communication with other X clients. |
2408 | Usually, `selection-coding-system' is used for communicating with | |
2409 | other X clients. But, if this variable is set, it is used for the | |
2410 | next communication only. After the communication, this variable is | |
2411 | set to nil. */); | |
16cd5029 KH |
2412 | Vnext_selection_coding_system = Qnil; |
2413 | ||
ede4db72 | 2414 | DEFVAR_INT ("x-selection-timeout", &x_selection_timeout, |
8c1a1077 PJ |
2415 | doc: /* Number of milliseconds to wait for a selection reply. |
2416 | If the selection owner doesn't reply in this time, we give up. | |
2417 | A value of 0 means wait as long as necessary. This is initialized from the | |
2418 | \"*selectionTimeout\" resource. */); | |
ede4db72 RS |
2419 | x_selection_timeout = 0; |
2420 | ||
2421 | QPRIMARY = intern ("PRIMARY"); staticpro (&QPRIMARY); | |
2422 | QSECONDARY = intern ("SECONDARY"); staticpro (&QSECONDARY); | |
2423 | QSTRING = intern ("STRING"); staticpro (&QSTRING); | |
2424 | QINTEGER = intern ("INTEGER"); staticpro (&QINTEGER); | |
2425 | QCLIPBOARD = intern ("CLIPBOARD"); staticpro (&QCLIPBOARD); | |
2426 | QTIMESTAMP = intern ("TIMESTAMP"); staticpro (&QTIMESTAMP); | |
2427 | QTEXT = intern ("TEXT"); staticpro (&QTEXT); | |
e6c7c988 | 2428 | QCOMPOUND_TEXT = intern ("COMPOUND_TEXT"); staticpro (&QCOMPOUND_TEXT); |
ede4db72 RS |
2429 | QTIMESTAMP = intern ("TIMESTAMP"); staticpro (&QTIMESTAMP); |
2430 | QDELETE = intern ("DELETE"); staticpro (&QDELETE); | |
2431 | QMULTIPLE = intern ("MULTIPLE"); staticpro (&QMULTIPLE); | |
2432 | QINCR = intern ("INCR"); staticpro (&QINCR); | |
2433 | QEMACS_TMP = intern ("_EMACS_TMP_"); staticpro (&QEMACS_TMP); | |
2434 | QTARGETS = intern ("TARGETS"); staticpro (&QTARGETS); | |
2435 | QATOM = intern ("ATOM"); staticpro (&QATOM); | |
2436 | QATOM_PAIR = intern ("ATOM_PAIR"); staticpro (&QATOM_PAIR); | |
2437 | QNULL = intern ("NULL"); staticpro (&QNULL); | |
23e16093 EZ |
2438 | Qcompound_text_no_extensions = intern ("compound-text-no-extensions"); |
2439 | staticpro (&Qcompound_text_no_extensions); | |
ede4db72 RS |
2440 | |
2441 | #ifdef CUT_BUFFER_SUPPORT | |
2442 | QCUT_BUFFER0 = intern ("CUT_BUFFER0"); staticpro (&QCUT_BUFFER0); | |
2443 | QCUT_BUFFER1 = intern ("CUT_BUFFER1"); staticpro (&QCUT_BUFFER1); | |
2444 | QCUT_BUFFER2 = intern ("CUT_BUFFER2"); staticpro (&QCUT_BUFFER2); | |
2445 | QCUT_BUFFER3 = intern ("CUT_BUFFER3"); staticpro (&QCUT_BUFFER3); | |
2446 | QCUT_BUFFER4 = intern ("CUT_BUFFER4"); staticpro (&QCUT_BUFFER4); | |
2447 | QCUT_BUFFER5 = intern ("CUT_BUFFER5"); staticpro (&QCUT_BUFFER5); | |
2448 | QCUT_BUFFER6 = intern ("CUT_BUFFER6"); staticpro (&QCUT_BUFFER6); | |
2449 | QCUT_BUFFER7 = intern ("CUT_BUFFER7"); staticpro (&QCUT_BUFFER7); | |
2450 | #endif | |
2451 | ||
2452 | } |