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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 | ||
ede4db72 RS |
100 | #ifdef CUT_BUFFER_SUPPORT |
101 | Lisp_Object QCUT_BUFFER0, QCUT_BUFFER1, QCUT_BUFFER2, QCUT_BUFFER3, | |
102 | QCUT_BUFFER4, QCUT_BUFFER5, QCUT_BUFFER6, QCUT_BUFFER7; | |
103 | #endif | |
104 | ||
8f4f023f RS |
105 | static Lisp_Object Vx_lost_selection_hooks; |
106 | static Lisp_Object Vx_sent_selection_hooks; | |
2584c9ec KH |
107 | /* Coding system for communicating with other X clients via cutbuffer, |
108 | selection, and clipboard. */ | |
93e4ce1b | 109 | static Lisp_Object Vselection_coding_system; |
ede4db72 | 110 | |
16cd5029 KH |
111 | /* Coding system for the next communicating with other X clients. */ |
112 | static Lisp_Object Vnext_selection_coding_system; | |
113 | ||
ede4db72 RS |
114 | /* If this is a smaller number than the max-request-size of the display, |
115 | emacs will use INCR selection transfer when the selection is larger | |
116 | than this. The max-request-size is usually around 64k, so if you want | |
117 | emacs to use incremental selection transfers when the selection is | |
118 | smaller than that, set this. I added this mostly for debugging the | |
8f4f023f | 119 | incremental transfer stuff, but it might improve server performance. */ |
ede4db72 RS |
120 | #define MAX_SELECTION_QUANTUM 0xFFFFFF |
121 | ||
c3498e64 JB |
122 | #ifdef HAVE_X11R4 |
123 | #define SELECTION_QUANTUM(dpy) ((XMaxRequestSize(dpy) << 2) - 100) | |
124 | #else | |
125 | #define SELECTION_QUANTUM(dpy) (((dpy)->max_request_size << 2) - 100) | |
126 | #endif | |
ede4db72 | 127 | |
7da64e5c | 128 | /* The timestamp of the last input event Emacs received from the X server. */ |
29674445 KH |
129 | /* Defined in keyboard.c. */ |
130 | extern unsigned long last_event_timestamp; | |
ede4db72 RS |
131 | |
132 | /* This is an association list whose elements are of the form | |
118bd841 RS |
133 | ( SELECTION-NAME SELECTION-VALUE SELECTION-TIMESTAMP FRAME) |
134 | SELECTION-NAME is a lisp symbol, whose name is the name of an X Atom. | |
135 | SELECTION-VALUE is the value that emacs owns for that selection. | |
ede4db72 | 136 | It may be any kind of Lisp object. |
118bd841 | 137 | SELECTION-TIMESTAMP is the time at which emacs began owning this selection, |
ede4db72 | 138 | as a cons of two 16-bit numbers (making a 32 bit time.) |
118bd841 RS |
139 | FRAME is the frame for which we made the selection. |
140 | If there is an entry in this alist, then it can be assumed that Emacs owns | |
ede4db72 RS |
141 | that selection. |
142 | The only (eq) parts of this list that are visible from Lisp are the | |
8f4f023f RS |
143 | selection-values. */ |
144 | static Lisp_Object Vselection_alist; | |
ede4db72 RS |
145 | |
146 | /* This is an alist whose CARs are selection-types (whose names are the same | |
147 | as the names of X Atoms) and whose CDRs are the names of Lisp functions to | |
148 | call to convert the given Emacs selection value to a string representing | |
149 | the given selection type. This is for Lisp-level extension of the emacs | |
8f4f023f RS |
150 | selection handling. */ |
151 | static Lisp_Object Vselection_converter_alist; | |
ede4db72 RS |
152 | |
153 | /* If the selection owner takes too long to reply to a selection request, | |
8f4f023f RS |
154 | we give up on it. This is in milliseconds (0 = no timeout.) */ |
155 | static int x_selection_timeout; | |
ede4db72 RS |
156 | \f |
157 | /* Utility functions */ | |
158 | ||
159 | static void lisp_data_to_selection_data (); | |
160 | static Lisp_Object selection_data_to_lisp_data (); | |
161 | static Lisp_Object x_get_window_property_as_lisp_data (); | |
162 | ||
ede4db72 RS |
163 | /* This converts a Lisp symbol to a server Atom, avoiding a server |
164 | roundtrip whenever possible. */ | |
165 | ||
166 | static Atom | |
5c3a351a RS |
167 | symbol_to_x_atom (dpyinfo, display, sym) |
168 | struct x_display_info *dpyinfo; | |
ede4db72 RS |
169 | Display *display; |
170 | Lisp_Object sym; | |
171 | { | |
172 | Atom val; | |
173 | if (NILP (sym)) return 0; | |
174 | if (EQ (sym, QPRIMARY)) return XA_PRIMARY; | |
175 | if (EQ (sym, QSECONDARY)) return XA_SECONDARY; | |
176 | if (EQ (sym, QSTRING)) return XA_STRING; | |
177 | if (EQ (sym, QINTEGER)) return XA_INTEGER; | |
178 | if (EQ (sym, QATOM)) return XA_ATOM; | |
5c3a351a RS |
179 | if (EQ (sym, QCLIPBOARD)) return dpyinfo->Xatom_CLIPBOARD; |
180 | if (EQ (sym, QTIMESTAMP)) return dpyinfo->Xatom_TIMESTAMP; | |
181 | if (EQ (sym, QTEXT)) return dpyinfo->Xatom_TEXT; | |
e6c7c988 | 182 | if (EQ (sym, QCOMPOUND_TEXT)) return dpyinfo->Xatom_COMPOUND_TEXT; |
5c3a351a RS |
183 | if (EQ (sym, QDELETE)) return dpyinfo->Xatom_DELETE; |
184 | if (EQ (sym, QMULTIPLE)) return dpyinfo->Xatom_MULTIPLE; | |
185 | if (EQ (sym, QINCR)) return dpyinfo->Xatom_INCR; | |
186 | if (EQ (sym, QEMACS_TMP)) return dpyinfo->Xatom_EMACS_TMP; | |
187 | if (EQ (sym, QTARGETS)) return dpyinfo->Xatom_TARGETS; | |
188 | if (EQ (sym, QNULL)) return dpyinfo->Xatom_NULL; | |
ede4db72 RS |
189 | #ifdef CUT_BUFFER_SUPPORT |
190 | if (EQ (sym, QCUT_BUFFER0)) return XA_CUT_BUFFER0; | |
191 | if (EQ (sym, QCUT_BUFFER1)) return XA_CUT_BUFFER1; | |
192 | if (EQ (sym, QCUT_BUFFER2)) return XA_CUT_BUFFER2; | |
193 | if (EQ (sym, QCUT_BUFFER3)) return XA_CUT_BUFFER3; | |
194 | if (EQ (sym, QCUT_BUFFER4)) return XA_CUT_BUFFER4; | |
195 | if (EQ (sym, QCUT_BUFFER5)) return XA_CUT_BUFFER5; | |
196 | if (EQ (sym, QCUT_BUFFER6)) return XA_CUT_BUFFER6; | |
197 | if (EQ (sym, QCUT_BUFFER7)) return XA_CUT_BUFFER7; | |
198 | #endif | |
199 | if (!SYMBOLP (sym)) abort (); | |
200 | ||
d9c0d4a3 | 201 | TRACE1 (" XInternAtom %s", (char *) XSYMBOL (sym)->name->data); |
ede4db72 RS |
202 | BLOCK_INPUT; |
203 | val = XInternAtom (display, (char *) XSYMBOL (sym)->name->data, False); | |
204 | UNBLOCK_INPUT; | |
205 | return val; | |
206 | } | |
207 | ||
208 | ||
209 | /* This converts a server Atom to a Lisp symbol, avoiding server roundtrips | |
210 | and calls to intern whenever possible. */ | |
211 | ||
212 | static Lisp_Object | |
d9c0d4a3 GM |
213 | x_atom_to_symbol (dpy, atom) |
214 | Display *dpy; | |
ede4db72 RS |
215 | Atom atom; |
216 | { | |
d9c0d4a3 | 217 | struct x_display_info *dpyinfo; |
ede4db72 RS |
218 | char *str; |
219 | Lisp_Object val; | |
d9c0d4a3 GM |
220 | |
221 | if (! atom) | |
222 | return Qnil; | |
223 | ||
7da64e5c RS |
224 | switch (atom) |
225 | { | |
226 | case XA_PRIMARY: | |
227 | return QPRIMARY; | |
228 | case XA_SECONDARY: | |
229 | return QSECONDARY; | |
230 | case XA_STRING: | |
231 | return QSTRING; | |
232 | case XA_INTEGER: | |
233 | return QINTEGER; | |
234 | case XA_ATOM: | |
235 | return QATOM; | |
ede4db72 | 236 | #ifdef CUT_BUFFER_SUPPORT |
7da64e5c RS |
237 | case XA_CUT_BUFFER0: |
238 | return QCUT_BUFFER0; | |
239 | case XA_CUT_BUFFER1: | |
240 | return QCUT_BUFFER1; | |
241 | case XA_CUT_BUFFER2: | |
242 | return QCUT_BUFFER2; | |
243 | case XA_CUT_BUFFER3: | |
244 | return QCUT_BUFFER3; | |
245 | case XA_CUT_BUFFER4: | |
246 | return QCUT_BUFFER4; | |
247 | case XA_CUT_BUFFER5: | |
248 | return QCUT_BUFFER5; | |
249 | case XA_CUT_BUFFER6: | |
250 | return QCUT_BUFFER6; | |
251 | case XA_CUT_BUFFER7: | |
252 | return QCUT_BUFFER7; | |
ede4db72 | 253 | #endif |
7da64e5c RS |
254 | } |
255 | ||
d9c0d4a3 | 256 | dpyinfo = x_display_info_for_display (dpy); |
5c3a351a | 257 | if (atom == dpyinfo->Xatom_CLIPBOARD) |
7da64e5c | 258 | return QCLIPBOARD; |
5c3a351a | 259 | if (atom == dpyinfo->Xatom_TIMESTAMP) |
7da64e5c | 260 | return QTIMESTAMP; |
5c3a351a | 261 | if (atom == dpyinfo->Xatom_TEXT) |
7da64e5c | 262 | return QTEXT; |
e6c7c988 KH |
263 | if (atom == dpyinfo->Xatom_COMPOUND_TEXT) |
264 | return QCOMPOUND_TEXT; | |
5c3a351a | 265 | if (atom == dpyinfo->Xatom_DELETE) |
7da64e5c | 266 | return QDELETE; |
5c3a351a | 267 | if (atom == dpyinfo->Xatom_MULTIPLE) |
7da64e5c | 268 | return QMULTIPLE; |
5c3a351a | 269 | if (atom == dpyinfo->Xatom_INCR) |
7da64e5c | 270 | return QINCR; |
5c3a351a | 271 | if (atom == dpyinfo->Xatom_EMACS_TMP) |
7da64e5c | 272 | return QEMACS_TMP; |
5c3a351a | 273 | if (atom == dpyinfo->Xatom_TARGETS) |
7da64e5c | 274 | return QTARGETS; |
5c3a351a | 275 | if (atom == dpyinfo->Xatom_NULL) |
7da64e5c | 276 | return QNULL; |
ede4db72 RS |
277 | |
278 | BLOCK_INPUT; | |
d9c0d4a3 | 279 | str = XGetAtomName (dpy, atom); |
ede4db72 | 280 | UNBLOCK_INPUT; |
d9c0d4a3 | 281 | TRACE1 ("XGetAtomName --> %s", str); |
ede4db72 RS |
282 | if (! str) return Qnil; |
283 | val = intern (str); | |
284 | BLOCK_INPUT; | |
0158abbc | 285 | /* This was allocated by Xlib, so use XFree. */ |
ede4db72 RS |
286 | XFree (str); |
287 | UNBLOCK_INPUT; | |
288 | return val; | |
289 | } | |
8a89415e | 290 | \f |
ede4db72 RS |
291 | /* Do protocol to assert ourself as a selection owner. |
292 | Update the Vselection_alist so that we can reply to later requests for | |
293 | our selection. */ | |
294 | ||
295 | static void | |
296 | x_own_selection (selection_name, selection_value) | |
297 | Lisp_Object selection_name, selection_value; | |
298 | { | |
378c33ca GM |
299 | struct frame *sf = SELECTED_FRAME (); |
300 | Window selecting_window = FRAME_X_WINDOW (sf); | |
301 | Display *display = FRAME_X_DISPLAY (sf); | |
7da64e5c | 302 | Time time = last_event_timestamp; |
ede4db72 | 303 | Atom selection_atom; |
378c33ca | 304 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (sf); |
5a499696 | 305 | int count; |
ede4db72 RS |
306 | |
307 | CHECK_SYMBOL (selection_name, 0); | |
5c3a351a | 308 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection_name); |
ede4db72 RS |
309 | |
310 | BLOCK_INPUT; | |
5a499696 | 311 | count = x_catch_errors (display); |
ede4db72 | 312 | XSetSelectionOwner (display, selection_atom, selecting_window, time); |
a7b24d46 | 313 | x_check_errors (display, "Can't set selection: %s"); |
5a499696 | 314 | x_uncatch_errors (display, count); |
ede4db72 RS |
315 | UNBLOCK_INPUT; |
316 | ||
317 | /* Now update the local cache */ | |
318 | { | |
319 | Lisp_Object selection_time; | |
320 | Lisp_Object selection_data; | |
321 | Lisp_Object prev_value; | |
322 | ||
323 | selection_time = long_to_cons ((unsigned long) time); | |
324 | selection_data = Fcons (selection_name, | |
325 | Fcons (selection_value, | |
118bd841 | 326 | Fcons (selection_time, |
378c33ca | 327 | Fcons (selected_frame, Qnil)))); |
ede4db72 RS |
328 | prev_value = assq_no_quit (selection_name, Vselection_alist); |
329 | ||
330 | Vselection_alist = Fcons (selection_data, Vselection_alist); | |
331 | ||
332 | /* If we already owned the selection, remove the old selection data. | |
333 | Perhaps we should destructively modify it instead. | |
334 | Don't use Fdelq as that may QUIT. */ | |
335 | if (!NILP (prev_value)) | |
336 | { | |
337 | Lisp_Object rest; /* we know it's not the CAR, so it's easy. */ | |
338 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) | |
8e713be6 | 339 | if (EQ (prev_value, Fcar (XCDR (rest)))) |
ede4db72 | 340 | { |
f3fbd155 | 341 | XSETCDR (rest, Fcdr (XCDR (rest))); |
ede4db72 RS |
342 | break; |
343 | } | |
344 | } | |
345 | } | |
346 | } | |
347 | \f | |
348 | /* Given a selection-name and desired type, look up our local copy of | |
349 | the selection value and convert it to the type. | |
350 | The value is nil or a string. | |
351 | This function is used both for remote requests | |
7da64e5c | 352 | and for local x-get-selection-internal. |
ede4db72 RS |
353 | |
354 | This calls random Lisp code, and may signal or gc. */ | |
355 | ||
356 | static Lisp_Object | |
357 | x_get_local_selection (selection_symbol, target_type) | |
358 | Lisp_Object selection_symbol, target_type; | |
359 | { | |
360 | Lisp_Object local_value; | |
361 | Lisp_Object handler_fn, value, type, check; | |
362 | int count; | |
363 | ||
364 | local_value = assq_no_quit (selection_symbol, Vselection_alist); | |
365 | ||
366 | if (NILP (local_value)) return Qnil; | |
367 | ||
368 | /* TIMESTAMP and MULTIPLE are special cases 'cause that's easiest. */ | |
369 | if (EQ (target_type, QTIMESTAMP)) | |
370 | { | |
371 | handler_fn = Qnil; | |
8e713be6 | 372 | value = XCAR (XCDR (XCDR (local_value))); |
ede4db72 RS |
373 | } |
374 | #if 0 | |
375 | else if (EQ (target_type, QDELETE)) | |
376 | { | |
377 | handler_fn = Qnil; | |
378 | Fx_disown_selection_internal | |
379 | (selection_symbol, | |
8e713be6 | 380 | XCAR (XCDR (XCDR (local_value)))); |
ede4db72 RS |
381 | value = QNULL; |
382 | } | |
383 | #endif | |
384 | ||
385 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
386 | else if (CONSP (target_type) | |
8e713be6 | 387 | && XCAR (target_type) == QMULTIPLE) |
ede4db72 | 388 | { |
9d2d1dd8 KH |
389 | Lisp_Object pairs; |
390 | int size; | |
ede4db72 | 391 | int i; |
8e713be6 | 392 | pairs = XCDR (target_type); |
9d2d1dd8 | 393 | size = XVECTOR (pairs)->size; |
ede4db72 RS |
394 | /* If the target is MULTIPLE, then target_type looks like |
395 | (MULTIPLE . [[SELECTION1 TARGET1] [SELECTION2 TARGET2] ... ]) | |
396 | We modify the second element of each pair in the vector and | |
397 | return it as [[SELECTION1 <value1>] [SELECTION2 <value2>] ... ] | |
398 | */ | |
399 | for (i = 0; i < size; i++) | |
400 | { | |
9d2d1dd8 KH |
401 | Lisp_Object pair; |
402 | pair = XVECTOR (pairs)->contents [i]; | |
ede4db72 RS |
403 | XVECTOR (pair)->contents [1] |
404 | = x_get_local_selection (XVECTOR (pair)->contents [0], | |
405 | XVECTOR (pair)->contents [1]); | |
406 | } | |
407 | return pairs; | |
408 | } | |
409 | #endif | |
410 | else | |
411 | { | |
412 | /* Don't allow a quit within the converter. | |
413 | When the user types C-g, he would be surprised | |
414 | if by luck it came during a converter. */ | |
415 | count = specpdl_ptr - specpdl; | |
416 | specbind (Qinhibit_quit, Qt); | |
417 | ||
418 | CHECK_SYMBOL (target_type, 0); | |
419 | handler_fn = Fcdr (Fassq (target_type, Vselection_converter_alist)); | |
1eb4d468 RS |
420 | if (!NILP (handler_fn)) |
421 | value = call3 (handler_fn, | |
422 | selection_symbol, target_type, | |
8e713be6 | 423 | XCAR (XCDR (local_value))); |
1eb4d468 RS |
424 | else |
425 | value = Qnil; | |
ede4db72 RS |
426 | unbind_to (count, Qnil); |
427 | } | |
428 | ||
429 | /* Make sure this value is of a type that we could transmit | |
430 | to another X client. */ | |
a87ed99c | 431 | |
ede4db72 RS |
432 | check = value; |
433 | if (CONSP (value) | |
8e713be6 KR |
434 | && SYMBOLP (XCAR (value))) |
435 | type = XCAR (value), | |
436 | check = XCDR (value); | |
ede4db72 RS |
437 | |
438 | if (STRINGP (check) | |
439 | || VECTORP (check) | |
440 | || SYMBOLP (check) | |
7da64e5c | 441 | || INTEGERP (check) |
ede4db72 RS |
442 | || NILP (value)) |
443 | return value; | |
a87ed99c | 444 | /* Check for a value that cons_to_long could handle. */ |
ede4db72 | 445 | else if (CONSP (check) |
8e713be6 KR |
446 | && INTEGERP (XCAR (check)) |
447 | && (INTEGERP (XCDR (check)) | |
ede4db72 | 448 | || |
8e713be6 KR |
449 | (CONSP (XCDR (check)) |
450 | && INTEGERP (XCAR (XCDR (check))) | |
451 | && NILP (XCDR (XCDR (check)))))) | |
ede4db72 RS |
452 | return value; |
453 | else | |
454 | return | |
455 | Fsignal (Qerror, | |
a87ed99c | 456 | Fcons (build_string ("invalid data returned by selection-conversion function"), |
ede4db72 RS |
457 | Fcons (handler_fn, Fcons (value, Qnil)))); |
458 | } | |
459 | \f | |
460 | /* Subroutines of x_reply_selection_request. */ | |
461 | ||
5d0ba25b | 462 | /* Send a SelectionNotify event to the requestor with property=None, |
ede4db72 RS |
463 | meaning we were unable to do what they wanted. */ |
464 | ||
465 | static void | |
466 | x_decline_selection_request (event) | |
467 | struct input_event *event; | |
468 | { | |
469 | XSelectionEvent reply; | |
d9c0d4a3 GM |
470 | int count; |
471 | ||
ede4db72 RS |
472 | reply.type = SelectionNotify; |
473 | reply.display = SELECTION_EVENT_DISPLAY (event); | |
5d0ba25b | 474 | reply.requestor = SELECTION_EVENT_REQUESTOR (event); |
ede4db72 RS |
475 | reply.selection = SELECTION_EVENT_SELECTION (event); |
476 | reply.time = SELECTION_EVENT_TIME (event); | |
477 | reply.target = SELECTION_EVENT_TARGET (event); | |
478 | reply.property = None; | |
479 | ||
d9c0d4a3 GM |
480 | /* The reason for the error may be that the receiver has |
481 | died in the meantime. Handle that case. */ | |
ede4db72 | 482 | BLOCK_INPUT; |
d9c0d4a3 GM |
483 | count = x_catch_errors (reply.display); |
484 | XSendEvent (reply.display, reply.requestor, False, 0L, (XEvent *) &reply); | |
5c3a351a | 485 | XFlush (reply.display); |
d9c0d4a3 | 486 | x_uncatch_errors (reply.display, count); |
ede4db72 RS |
487 | UNBLOCK_INPUT; |
488 | } | |
489 | ||
490 | /* This is the selection request currently being processed. | |
491 | It is set to zero when the request is fully processed. */ | |
492 | static struct input_event *x_selection_current_request; | |
493 | ||
ca29f2b8 GM |
494 | /* Display info in x_selection_request. */ |
495 | ||
496 | static struct x_display_info *selection_request_dpyinfo; | |
497 | ||
ede4db72 | 498 | /* Used as an unwind-protect clause so that, if a selection-converter signals |
2a1a4c9d | 499 | an error, we tell the requester that we were unable to do what they wanted |
ede4db72 RS |
500 | before we throw to top-level or go into the debugger or whatever. */ |
501 | ||
502 | static Lisp_Object | |
503 | x_selection_request_lisp_error (ignore) | |
504 | Lisp_Object ignore; | |
505 | { | |
ca29f2b8 GM |
506 | if (x_selection_current_request != 0 |
507 | && selection_request_dpyinfo->display) | |
ede4db72 RS |
508 | x_decline_selection_request (x_selection_current_request); |
509 | return Qnil; | |
510 | } | |
511 | \f | |
d1f21a66 RS |
512 | |
513 | /* This stuff is so that INCR selections are reentrant (that is, so we can | |
514 | be servicing multiple INCR selection requests simultaneously.) I haven't | |
515 | actually tested that yet. */ | |
516 | ||
517 | /* Keep a list of the property changes that are awaited. */ | |
518 | ||
519 | struct prop_location | |
520 | { | |
521 | int identifier; | |
522 | Display *display; | |
523 | Window window; | |
524 | Atom property; | |
525 | int desired_state; | |
526 | int arrived; | |
527 | struct prop_location *next; | |
528 | }; | |
529 | ||
530 | static struct prop_location *expect_property_change (); | |
531 | static void wait_for_property_change (); | |
532 | static void unexpect_property_change (); | |
533 | static int waiting_for_other_props_on_window (); | |
534 | ||
535 | static int prop_location_identifier; | |
536 | ||
537 | static Lisp_Object property_change_reply; | |
538 | ||
539 | static struct prop_location *property_change_reply_object; | |
540 | ||
541 | static struct prop_location *property_change_wait_list; | |
55b2d45d RS |
542 | |
543 | static Lisp_Object | |
544 | queue_selection_requests_unwind (frame) | |
545 | Lisp_Object frame; | |
546 | { | |
547 | FRAME_PTR f = XFRAME (frame); | |
548 | ||
549 | if (! NILP (frame)) | |
550 | x_stop_queuing_selection_requests (FRAME_X_DISPLAY (f)); | |
ab552306 | 551 | return Qnil; |
55b2d45d RS |
552 | } |
553 | ||
554 | /* Return some frame whose display info is DPYINFO. | |
555 | Return nil if there is none. */ | |
556 | ||
557 | static Lisp_Object | |
558 | some_frame_on_display (dpyinfo) | |
559 | struct x_display_info *dpyinfo; | |
560 | { | |
561 | Lisp_Object list, frame; | |
562 | ||
563 | FOR_EACH_FRAME (list, frame) | |
564 | { | |
565 | if (FRAME_X_DISPLAY_INFO (XFRAME (frame)) == dpyinfo) | |
566 | return frame; | |
567 | } | |
568 | ||
569 | return Qnil; | |
570 | } | |
d1f21a66 | 571 | \f |
ede4db72 RS |
572 | /* Send the reply to a selection request event EVENT. |
573 | TYPE is the type of selection data requested. | |
574 | DATA and SIZE describe the data to send, already converted. | |
575 | FORMAT is the unit-size (in bits) of the data to be transmitted. */ | |
576 | ||
577 | static void | |
578 | x_reply_selection_request (event, format, data, size, type) | |
579 | struct input_event *event; | |
580 | int format, size; | |
581 | unsigned char *data; | |
582 | Atom type; | |
583 | { | |
584 | XSelectionEvent reply; | |
585 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
5d0ba25b | 586 | Window window = SELECTION_EVENT_REQUESTOR (event); |
ede4db72 RS |
587 | int bytes_remaining; |
588 | int format_bytes = format/8; | |
589 | int max_bytes = SELECTION_QUANTUM (display); | |
5c3a351a | 590 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
5a499696 | 591 | int count; |
ede4db72 RS |
592 | |
593 | if (max_bytes > MAX_SELECTION_QUANTUM) | |
594 | max_bytes = MAX_SELECTION_QUANTUM; | |
595 | ||
596 | reply.type = SelectionNotify; | |
597 | reply.display = display; | |
5d0ba25b | 598 | reply.requestor = window; |
ede4db72 RS |
599 | reply.selection = SELECTION_EVENT_SELECTION (event); |
600 | reply.time = SELECTION_EVENT_TIME (event); | |
601 | reply.target = SELECTION_EVENT_TARGET (event); | |
602 | reply.property = SELECTION_EVENT_PROPERTY (event); | |
603 | if (reply.property == None) | |
604 | reply.property = reply.target; | |
605 | ||
606 | /* #### XChangeProperty can generate BadAlloc, and we must handle it! */ | |
afe1529d | 607 | BLOCK_INPUT; |
ad7f9d12 | 608 | count = x_catch_errors (display); |
ede4db72 | 609 | |
ede4db72 RS |
610 | /* Store the data on the requested property. |
611 | If the selection is large, only store the first N bytes of it. | |
612 | */ | |
613 | bytes_remaining = size * format_bytes; | |
614 | if (bytes_remaining <= max_bytes) | |
615 | { | |
616 | /* Send all the data at once, with minimal handshaking. */ | |
d9c0d4a3 | 617 | TRACE1 ("Sending all %d bytes", bytes_remaining); |
ede4db72 RS |
618 | XChangeProperty (display, window, reply.property, type, format, |
619 | PropModeReplace, data, size); | |
620 | /* At this point, the selection was successfully stored; ack it. */ | |
2f65feb6 | 621 | XSendEvent (display, window, False, 0L, (XEvent *) &reply); |
ede4db72 RS |
622 | } |
623 | else | |
624 | { | |
625 | /* Send an INCR selection. */ | |
d1f21a66 | 626 | struct prop_location *wait_object; |
afe1529d | 627 | int had_errors; |
55b2d45d | 628 | Lisp_Object frame; |
ede4db72 | 629 | |
55b2d45d RS |
630 | frame = some_frame_on_display (dpyinfo); |
631 | ||
632 | /* If the display no longer has frames, we can't expect | |
633 | to get many more selection requests from it, so don't | |
634 | bother trying to queue them. */ | |
635 | if (!NILP (frame)) | |
636 | { | |
637 | x_start_queuing_selection_requests (display); | |
638 | ||
639 | record_unwind_protect (queue_selection_requests_unwind, | |
640 | frame); | |
641 | } | |
2f65feb6 | 642 | |
19126e11 | 643 | if (x_window_to_frame (dpyinfo, window)) /* #### debug */ |
606140dd | 644 | error ("Attempt to transfer an INCR to ourself!"); |
d9c0d4a3 GM |
645 | |
646 | TRACE2 ("Start sending %d bytes incrementally (%s)", | |
647 | bytes_remaining, XGetAtomName (display, reply.property)); | |
d1f21a66 RS |
648 | wait_object = expect_property_change (display, window, reply.property, |
649 | PropertyDelete); | |
ede4db72 | 650 | |
d9c0d4a3 GM |
651 | TRACE1 ("Set %s to number of bytes to send", |
652 | XGetAtomName (display, reply.property)); | |
5c3a351a | 653 | XChangeProperty (display, window, reply.property, dpyinfo->Xatom_INCR, |
55b2d45d RS |
654 | 32, PropModeReplace, |
655 | (unsigned char *) &bytes_remaining, 1); | |
ede4db72 | 656 | XSelectInput (display, window, PropertyChangeMask); |
d9c0d4a3 | 657 | |
ede4db72 | 658 | /* Tell 'em the INCR data is there... */ |
d9c0d4a3 | 659 | TRACE0 ("Send SelectionNotify event"); |
55b2d45d | 660 | XSendEvent (display, window, False, 0L, (XEvent *) &reply); |
5c3a351a | 661 | XFlush (display); |
afe1529d RS |
662 | |
663 | had_errors = x_had_errors_p (display); | |
2f65feb6 | 664 | UNBLOCK_INPUT; |
ede4db72 | 665 | |
2a1a4c9d | 666 | /* First, wait for the requester to ack by deleting the property. |
ede4db72 | 667 | This can run random lisp code (process handlers) or signal. */ |
afe1529d | 668 | if (! had_errors) |
d9c0d4a3 GM |
669 | { |
670 | TRACE1 ("Waiting for ACK (deletion of %s)", | |
671 | XGetAtomName (display, reply.property)); | |
672 | wait_for_property_change (wait_object); | |
673 | } | |
ede4db72 | 674 | |
d9c0d4a3 | 675 | TRACE0 ("Got ACK"); |
ede4db72 RS |
676 | while (bytes_remaining) |
677 | { | |
678 | int i = ((bytes_remaining < max_bytes) | |
679 | ? bytes_remaining | |
680 | : max_bytes); | |
2f65feb6 RS |
681 | |
682 | BLOCK_INPUT; | |
683 | ||
d1f21a66 RS |
684 | wait_object |
685 | = expect_property_change (display, window, reply.property, | |
686 | PropertyDelete); | |
d9c0d4a3 GM |
687 | |
688 | TRACE1 ("Sending increment of %d bytes", i); | |
689 | TRACE1 ("Set %s to increment data", | |
690 | XGetAtomName (display, reply.property)); | |
691 | ||
ede4db72 RS |
692 | /* Append the next chunk of data to the property. */ |
693 | XChangeProperty (display, window, reply.property, type, format, | |
694 | PropModeAppend, data, i / format_bytes); | |
695 | bytes_remaining -= i; | |
696 | data += i; | |
5c3a351a | 697 | XFlush (display); |
afe1529d | 698 | had_errors = x_had_errors_p (display); |
2f65feb6 | 699 | UNBLOCK_INPUT; |
ede4db72 | 700 | |
afe1529d RS |
701 | if (had_errors) |
702 | break; | |
703 | ||
2a1a4c9d | 704 | /* Now wait for the requester to ack this chunk by deleting the |
d9c0d4a3 GM |
705 | property. This can run random lisp code or signal. */ |
706 | TRACE1 ("Waiting for increment ACK (deletion of %s)", | |
707 | XGetAtomName (display, reply.property)); | |
d1f21a66 | 708 | wait_for_property_change (wait_object); |
ede4db72 | 709 | } |
d9c0d4a3 GM |
710 | |
711 | /* Now write a zero-length chunk to the property to tell the | |
712 | requester that we're done. */ | |
2f65feb6 | 713 | BLOCK_INPUT; |
ede4db72 RS |
714 | if (! waiting_for_other_props_on_window (display, window)) |
715 | XSelectInput (display, window, 0L); | |
716 | ||
d9c0d4a3 GM |
717 | TRACE1 ("Set %s to a 0-length chunk to indicate EOF", |
718 | XGetAtomName (display, reply.property)); | |
ede4db72 RS |
719 | XChangeProperty (display, window, reply.property, type, format, |
720 | PropModeReplace, data, 0); | |
d9c0d4a3 | 721 | TRACE0 ("Done sending incrementally"); |
ede4db72 | 722 | } |
afe1529d | 723 | |
47a6ac17 GM |
724 | /* The window we're communicating with may have been deleted |
725 | in the meantime (that's a real situation from a bug report). | |
726 | In this case, there may be events in the event queue still | |
727 | refering to the deleted window, and we'll get a BadWindow error | |
728 | in XTread_socket when processing the events. I don't have | |
729 | an idea how to fix that. gerd, 2001-01-98. */ | |
afe1529d | 730 | XFlush (display); |
5a499696 | 731 | x_uncatch_errors (display, count); |
afe1529d | 732 | UNBLOCK_INPUT; |
ede4db72 RS |
733 | } |
734 | \f | |
735 | /* Handle a SelectionRequest event EVENT. | |
736 | This is called from keyboard.c when such an event is found in the queue. */ | |
737 | ||
738 | void | |
739 | x_handle_selection_request (event) | |
740 | struct input_event *event; | |
741 | { | |
742 | struct gcpro gcpro1, gcpro2, gcpro3; | |
9d2d1dd8 | 743 | Lisp_Object local_selection_data; |
ede4db72 | 744 | Lisp_Object selection_symbol; |
9d2d1dd8 KH |
745 | Lisp_Object target_symbol; |
746 | Lisp_Object converted_selection; | |
ede4db72 | 747 | Time local_selection_time; |
9d2d1dd8 | 748 | Lisp_Object successful_p; |
ede4db72 | 749 | int count; |
5c3a351a RS |
750 | struct x_display_info *dpyinfo |
751 | = x_display_info_for_display (SELECTION_EVENT_DISPLAY (event)); | |
ede4db72 | 752 | |
9d2d1dd8 KH |
753 | local_selection_data = Qnil; |
754 | target_symbol = Qnil; | |
755 | converted_selection = Qnil; | |
756 | successful_p = Qnil; | |
757 | ||
ede4db72 RS |
758 | GCPRO3 (local_selection_data, converted_selection, target_symbol); |
759 | ||
d9c0d4a3 | 760 | selection_symbol = x_atom_to_symbol (SELECTION_EVENT_DISPLAY (event), |
ede4db72 RS |
761 | SELECTION_EVENT_SELECTION (event)); |
762 | ||
763 | local_selection_data = assq_no_quit (selection_symbol, Vselection_alist); | |
ede4db72 RS |
764 | |
765 | if (NILP (local_selection_data)) | |
766 | { | |
767 | /* Someone asked for the selection, but we don't have it any more. | |
768 | */ | |
769 | x_decline_selection_request (event); | |
770 | goto DONE; | |
771 | } | |
772 | ||
773 | local_selection_time = (Time) | |
8e713be6 | 774 | cons_to_long (XCAR (XCDR (XCDR (local_selection_data)))); |
ede4db72 RS |
775 | |
776 | if (SELECTION_EVENT_TIME (event) != CurrentTime | |
7da64e5c | 777 | && local_selection_time > SELECTION_EVENT_TIME (event)) |
ede4db72 RS |
778 | { |
779 | /* Someone asked for the selection, and we have one, but not the one | |
780 | they're looking for. | |
781 | */ | |
782 | x_decline_selection_request (event); | |
783 | goto DONE; | |
784 | } | |
785 | ||
ede4db72 | 786 | x_selection_current_request = event; |
ca29f2b8 GM |
787 | count = BINDING_STACK_SIZE (); |
788 | selection_request_dpyinfo = dpyinfo; | |
ede4db72 RS |
789 | record_unwind_protect (x_selection_request_lisp_error, Qnil); |
790 | ||
d9c0d4a3 | 791 | target_symbol = x_atom_to_symbol (SELECTION_EVENT_DISPLAY (event), |
ede4db72 RS |
792 | SELECTION_EVENT_TARGET (event)); |
793 | ||
794 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
795 | if (EQ (target_symbol, QMULTIPLE)) | |
796 | target_symbol = fetch_multiple_target (event); | |
797 | #endif | |
798 | ||
799 | /* Convert lisp objects back into binary data */ | |
800 | ||
801 | converted_selection | |
802 | = x_get_local_selection (selection_symbol, target_symbol); | |
803 | ||
804 | if (! NILP (converted_selection)) | |
805 | { | |
806 | unsigned char *data; | |
807 | unsigned int size; | |
808 | int format; | |
809 | Atom type; | |
aca39f42 RS |
810 | int nofree; |
811 | ||
2f65feb6 RS |
812 | lisp_data_to_selection_data (SELECTION_EVENT_DISPLAY (event), |
813 | converted_selection, | |
aca39f42 | 814 | &data, &type, &size, &format, &nofree); |
ede4db72 RS |
815 | |
816 | x_reply_selection_request (event, format, data, size, type); | |
817 | successful_p = Qt; | |
818 | ||
819 | /* Indicate we have successfully processed this event. */ | |
7da64e5c | 820 | x_selection_current_request = 0; |
ede4db72 | 821 | |
4feb31b2 | 822 | /* Use xfree, not XFree, because lisp_data_to_selection_data |
0158abbc | 823 | calls xmalloc itself. */ |
aca39f42 | 824 | if (!nofree) |
4feb31b2 | 825 | xfree (data); |
ede4db72 RS |
826 | } |
827 | unbind_to (count, Qnil); | |
828 | ||
829 | DONE: | |
830 | ||
831 | UNGCPRO; | |
832 | ||
833 | /* Let random lisp code notice that the selection has been asked for. */ | |
834 | { | |
9d2d1dd8 KH |
835 | Lisp_Object rest; |
836 | rest = Vx_sent_selection_hooks; | |
ede4db72 RS |
837 | if (!EQ (rest, Qunbound)) |
838 | for (; CONSP (rest); rest = Fcdr (rest)) | |
839 | call3 (Fcar (rest), selection_symbol, target_symbol, successful_p); | |
840 | } | |
841 | } | |
842 | \f | |
e18e6130 | 843 | /* Handle a SelectionClear event EVENT, which indicates that some |
ede4db72 RS |
844 | client cleared out our previously asserted selection. |
845 | This is called from keyboard.c when such an event is found in the queue. */ | |
846 | ||
847 | void | |
848 | x_handle_selection_clear (event) | |
849 | struct input_event *event; | |
850 | { | |
851 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
852 | Atom selection = SELECTION_EVENT_SELECTION (event); | |
853 | Time changed_owner_time = SELECTION_EVENT_TIME (event); | |
854 | ||
855 | Lisp_Object selection_symbol, local_selection_data; | |
856 | Time local_selection_time; | |
5c3a351a | 857 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
e18e6130 RS |
858 | struct x_display_info *t_dpyinfo; |
859 | ||
860 | /* If the new selection owner is also Emacs, | |
861 | don't clear the new selection. */ | |
862 | BLOCK_INPUT; | |
863 | /* Check each display on the same terminal, | |
864 | to see if this Emacs job now owns the selection | |
865 | through that display. */ | |
866 | for (t_dpyinfo = x_display_list; t_dpyinfo; t_dpyinfo = t_dpyinfo->next) | |
867 | if (t_dpyinfo->kboard == dpyinfo->kboard) | |
868 | { | |
869 | Window owner_window | |
870 | = XGetSelectionOwner (t_dpyinfo->display, selection); | |
871 | if (x_window_to_frame (t_dpyinfo, owner_window) != 0) | |
872 | { | |
873 | UNBLOCK_INPUT; | |
874 | return; | |
875 | } | |
876 | } | |
877 | UNBLOCK_INPUT; | |
ede4db72 | 878 | |
d9c0d4a3 | 879 | selection_symbol = x_atom_to_symbol (display, selection); |
ede4db72 RS |
880 | |
881 | local_selection_data = assq_no_quit (selection_symbol, Vselection_alist); | |
882 | ||
883 | /* Well, we already believe that we don't own it, so that's just fine. */ | |
884 | if (NILP (local_selection_data)) return; | |
885 | ||
886 | local_selection_time = (Time) | |
8e713be6 | 887 | cons_to_long (XCAR (XCDR (XCDR (local_selection_data)))); |
ede4db72 RS |
888 | |
889 | /* This SelectionClear is for a selection that we no longer own, so we can | |
890 | disregard it. (That is, we have reasserted the selection since this | |
891 | request was generated.) */ | |
892 | ||
893 | if (changed_owner_time != CurrentTime | |
894 | && local_selection_time > changed_owner_time) | |
895 | return; | |
896 | ||
897 | /* Otherwise, we're really honest and truly being told to drop it. | |
898 | Don't use Fdelq as that may QUIT;. */ | |
899 | ||
900 | if (EQ (local_selection_data, Fcar (Vselection_alist))) | |
901 | Vselection_alist = Fcdr (Vselection_alist); | |
902 | else | |
903 | { | |
904 | Lisp_Object rest; | |
905 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) | |
8e713be6 | 906 | if (EQ (local_selection_data, Fcar (XCDR (rest)))) |
ede4db72 | 907 | { |
f3fbd155 | 908 | XSETCDR (rest, Fcdr (XCDR (rest))); |
ede4db72 RS |
909 | break; |
910 | } | |
911 | } | |
912 | ||
913 | /* Let random lisp code notice that the selection has been stolen. */ | |
914 | ||
915 | { | |
d1f21a66 RS |
916 | Lisp_Object rest; |
917 | rest = Vx_lost_selection_hooks; | |
ede4db72 | 918 | if (!EQ (rest, Qunbound)) |
d1f21a66 RS |
919 | { |
920 | for (; CONSP (rest); rest = Fcdr (rest)) | |
921 | call1 (Fcar (rest), selection_symbol); | |
7c6b2ea4 | 922 | prepare_menu_bars (); |
3007ebfb | 923 | redisplay_preserve_echo_area (20); |
d1f21a66 | 924 | } |
ede4db72 RS |
925 | } |
926 | } | |
927 | ||
118bd841 RS |
928 | /* Clear all selections that were made from frame F. |
929 | We do this when about to delete a frame. */ | |
930 | ||
931 | void | |
932 | x_clear_frame_selections (f) | |
933 | FRAME_PTR f; | |
934 | { | |
935 | Lisp_Object frame; | |
936 | Lisp_Object rest; | |
937 | ||
90851bbe | 938 | XSETFRAME (frame, f); |
118bd841 RS |
939 | |
940 | /* Otherwise, we're really honest and truly being told to drop it. | |
941 | Don't use Fdelq as that may QUIT;. */ | |
942 | ||
0d199f9c RS |
943 | /* Delete elements from the beginning of Vselection_alist. */ |
944 | while (!NILP (Vselection_alist) | |
945 | && EQ (frame, Fcar (Fcdr (Fcdr (Fcdr (Fcar (Vselection_alist))))))) | |
946 | { | |
947 | /* Let random Lisp code notice that the selection has been stolen. */ | |
948 | Lisp_Object hooks, selection_symbol; | |
949 | ||
950 | hooks = Vx_lost_selection_hooks; | |
951 | selection_symbol = Fcar (Fcar (Vselection_alist)); | |
952 | ||
953 | if (!EQ (hooks, Qunbound)) | |
954 | { | |
955 | for (; CONSP (hooks); hooks = Fcdr (hooks)) | |
956 | call1 (Fcar (hooks), selection_symbol); | |
996b804d MB |
957 | #if 0 /* This can crash when deleting a frame |
958 | from x_connection_closed. Anyway, it seems unnecessary; | |
959 | something else should cause a redisplay. */ | |
3007ebfb | 960 | redisplay_preserve_echo_area (21); |
996b804d | 961 | #endif |
0d199f9c RS |
962 | } |
963 | ||
964 | Vselection_alist = Fcdr (Vselection_alist); | |
965 | } | |
966 | ||
967 | /* Delete elements after the beginning of Vselection_alist. */ | |
118bd841 | 968 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) |
8e713be6 | 969 | if (EQ (frame, Fcar (Fcdr (Fcdr (Fcdr (Fcar (XCDR (rest)))))))) |
118bd841 RS |
970 | { |
971 | /* Let random Lisp code notice that the selection has been stolen. */ | |
972 | Lisp_Object hooks, selection_symbol; | |
973 | ||
974 | hooks = Vx_lost_selection_hooks; | |
8e713be6 | 975 | selection_symbol = Fcar (Fcar (XCDR (rest))); |
118bd841 RS |
976 | |
977 | if (!EQ (hooks, Qunbound)) | |
978 | { | |
979 | for (; CONSP (hooks); hooks = Fcdr (hooks)) | |
980 | call1 (Fcar (hooks), selection_symbol); | |
996b804d | 981 | #if 0 /* See above */ |
3007ebfb | 982 | redisplay_preserve_echo_area (22); |
996b804d | 983 | #endif |
118bd841 | 984 | } |
f3fbd155 | 985 | XSETCDR (rest, Fcdr (XCDR (rest))); |
118bd841 RS |
986 | break; |
987 | } | |
988 | } | |
ede4db72 | 989 | \f |
ede4db72 RS |
990 | /* Nonzero if any properties for DISPLAY and WINDOW |
991 | are on the list of what we are waiting for. */ | |
992 | ||
993 | static int | |
994 | waiting_for_other_props_on_window (display, window) | |
995 | Display *display; | |
996 | Window window; | |
997 | { | |
998 | struct prop_location *rest = property_change_wait_list; | |
999 | while (rest) | |
1000 | if (rest->display == display && rest->window == window) | |
1001 | return 1; | |
1002 | else | |
1003 | rest = rest->next; | |
1004 | return 0; | |
1005 | } | |
1006 | ||
1007 | /* Add an entry to the list of property changes we are waiting for. | |
1008 | DISPLAY, WINDOW, PROPERTY, STATE describe what we will wait for. | |
1009 | The return value is a number that uniquely identifies | |
1010 | this awaited property change. */ | |
1011 | ||
d1f21a66 | 1012 | static struct prop_location * |
ede4db72 RS |
1013 | expect_property_change (display, window, property, state) |
1014 | Display *display; | |
1015 | Window window; | |
6c070502 | 1016 | Atom property; |
ede4db72 RS |
1017 | int state; |
1018 | { | |
d9c0d4a3 | 1019 | struct prop_location *pl = (struct prop_location *) xmalloc (sizeof *pl); |
2f65feb6 | 1020 | pl->identifier = ++prop_location_identifier; |
ede4db72 RS |
1021 | pl->display = display; |
1022 | pl->window = window; | |
1023 | pl->property = property; | |
1024 | pl->desired_state = state; | |
1025 | pl->next = property_change_wait_list; | |
d1f21a66 | 1026 | pl->arrived = 0; |
ede4db72 | 1027 | property_change_wait_list = pl; |
d1f21a66 | 1028 | return pl; |
ede4db72 RS |
1029 | } |
1030 | ||
1031 | /* Delete an entry from the list of property changes we are waiting for. | |
2f65feb6 | 1032 | IDENTIFIER is the number that uniquely identifies the entry. */ |
ede4db72 RS |
1033 | |
1034 | static void | |
d1f21a66 RS |
1035 | unexpect_property_change (location) |
1036 | struct prop_location *location; | |
ede4db72 RS |
1037 | { |
1038 | struct prop_location *prev = 0, *rest = property_change_wait_list; | |
1039 | while (rest) | |
1040 | { | |
d1f21a66 | 1041 | if (rest == location) |
ede4db72 RS |
1042 | { |
1043 | if (prev) | |
1044 | prev->next = rest->next; | |
1045 | else | |
1046 | property_change_wait_list = rest->next; | |
4feb31b2 | 1047 | xfree (rest); |
ede4db72 RS |
1048 | return; |
1049 | } | |
1050 | prev = rest; | |
1051 | rest = rest->next; | |
1052 | } | |
1053 | } | |
1054 | ||
2f65feb6 RS |
1055 | /* Remove the property change expectation element for IDENTIFIER. */ |
1056 | ||
1057 | static Lisp_Object | |
1058 | wait_for_property_change_unwind (identifierval) | |
1059 | Lisp_Object identifierval; | |
1060 | { | |
c4898489 | 1061 | unexpect_property_change ((struct prop_location *) |
8e713be6 KR |
1062 | (XFASTINT (XCAR (identifierval)) << 16 |
1063 | | XFASTINT (XCDR (identifierval)))); | |
ab552306 | 1064 | return Qnil; |
2f65feb6 RS |
1065 | } |
1066 | ||
ede4db72 | 1067 | /* Actually wait for a property change. |
2f65feb6 | 1068 | IDENTIFIER should be the value that expect_property_change returned. */ |
ede4db72 RS |
1069 | |
1070 | static void | |
d1f21a66 RS |
1071 | wait_for_property_change (location) |
1072 | struct prop_location *location; | |
ede4db72 | 1073 | { |
2f65feb6 RS |
1074 | int secs, usecs; |
1075 | int count = specpdl_ptr - specpdl; | |
d1f21a66 RS |
1076 | Lisp_Object tem; |
1077 | ||
c4898489 | 1078 | tem = Fcons (Qnil, Qnil); |
f3fbd155 KR |
1079 | XSETCARFASTINT (tem, (EMACS_UINT)location >> 16); |
1080 | XSETCDRFASTINT (tem, (EMACS_UINT)location & 0xffff); | |
2f65feb6 RS |
1081 | |
1082 | /* Make sure to do unexpect_property_change if we quit or err. */ | |
d1f21a66 | 1083 | record_unwind_protect (wait_for_property_change_unwind, tem); |
2f65feb6 | 1084 | |
f3fbd155 | 1085 | XSETCAR (property_change_reply, Qnil); |
2f65feb6 | 1086 | |
afe1529d RS |
1087 | property_change_reply_object = location; |
1088 | /* If the event we are waiting for arrives beyond here, it will set | |
1089 | property_change_reply, because property_change_reply_object says so. */ | |
d1f21a66 RS |
1090 | if (! location->arrived) |
1091 | { | |
d1f21a66 RS |
1092 | secs = x_selection_timeout / 1000; |
1093 | usecs = (x_selection_timeout % 1000) * 1000; | |
d9c0d4a3 | 1094 | TRACE2 (" Waiting %d secs, %d usecs", secs, usecs); |
d1f21a66 RS |
1095 | wait_reading_process_input (secs, usecs, property_change_reply, 0); |
1096 | ||
8e713be6 | 1097 | if (NILP (XCAR (property_change_reply))) |
d9c0d4a3 GM |
1098 | { |
1099 | TRACE0 (" Timed out"); | |
1100 | error ("Timed out waiting for property-notify event"); | |
1101 | } | |
d1f21a66 | 1102 | } |
2f65feb6 RS |
1103 | |
1104 | unbind_to (count, Qnil); | |
ede4db72 RS |
1105 | } |
1106 | ||
1107 | /* Called from XTread_socket in response to a PropertyNotify event. */ | |
1108 | ||
1109 | void | |
1110 | x_handle_property_notify (event) | |
1111 | XPropertyEvent *event; | |
1112 | { | |
1113 | struct prop_location *prev = 0, *rest = property_change_wait_list; | |
d9c0d4a3 | 1114 | |
ede4db72 RS |
1115 | while (rest) |
1116 | { | |
1117 | if (rest->property == event->atom | |
1118 | && rest->window == event->window | |
1119 | && rest->display == event->display | |
1120 | && rest->desired_state == event->state) | |
1121 | { | |
d9c0d4a3 GM |
1122 | TRACE2 ("Expected %s of property %s", |
1123 | (event->state == PropertyDelete ? "deletion" : "change"), | |
1124 | XGetAtomName (event->display, event->atom)); | |
ede4db72 | 1125 | |
d1f21a66 RS |
1126 | rest->arrived = 1; |
1127 | ||
ede4db72 RS |
1128 | /* If this is the one wait_for_property_change is waiting for, |
1129 | tell it to wake up. */ | |
d1f21a66 | 1130 | if (rest == property_change_reply_object) |
f3fbd155 | 1131 | XSETCAR (property_change_reply, Qt); |
ede4db72 RS |
1132 | |
1133 | if (prev) | |
1134 | prev->next = rest->next; | |
1135 | else | |
1136 | property_change_wait_list = rest->next; | |
4feb31b2 | 1137 | xfree (rest); |
ede4db72 RS |
1138 | return; |
1139 | } | |
d9c0d4a3 | 1140 | |
ede4db72 RS |
1141 | prev = rest; |
1142 | rest = rest->next; | |
1143 | } | |
ede4db72 RS |
1144 | } |
1145 | ||
1146 | ||
1147 | \f | |
1148 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1149 | ||
1150 | static Lisp_Object | |
1151 | fetch_multiple_target (event) | |
1152 | XSelectionRequestEvent *event; | |
1153 | { | |
1154 | Display *display = event->display; | |
5d0ba25b | 1155 | Window window = event->requestor; |
ede4db72 RS |
1156 | Atom target = event->target; |
1157 | Atom selection_atom = event->selection; | |
1158 | int result; | |
1159 | ||
1160 | return | |
1161 | Fcons (QMULTIPLE, | |
1162 | x_get_window_property_as_lisp_data (display, window, target, | |
1163 | QMULTIPLE, selection_atom)); | |
1164 | } | |
1165 | ||
1166 | static Lisp_Object | |
1167 | copy_multiple_data (obj) | |
1168 | Lisp_Object obj; | |
1169 | { | |
1170 | Lisp_Object vec; | |
1171 | int i; | |
1172 | int size; | |
1173 | if (CONSP (obj)) | |
8e713be6 | 1174 | return Fcons (XCAR (obj), copy_multiple_data (XCDR (obj))); |
ede4db72 RS |
1175 | |
1176 | CHECK_VECTOR (obj, 0); | |
1177 | vec = Fmake_vector (size = XVECTOR (obj)->size, Qnil); | |
1178 | for (i = 0; i < size; i++) | |
1179 | { | |
1180 | Lisp_Object vec2 = XVECTOR (obj)->contents [i]; | |
1181 | CHECK_VECTOR (vec2, 0); | |
1182 | if (XVECTOR (vec2)->size != 2) | |
1183 | /* ??? Confusing error message */ | |
1184 | Fsignal (Qerror, Fcons (build_string ("vectors must be of length 2"), | |
1185 | Fcons (vec2, Qnil))); | |
1186 | XVECTOR (vec)->contents [i] = Fmake_vector (2, Qnil); | |
1187 | XVECTOR (XVECTOR (vec)->contents [i])->contents [0] | |
1188 | = XVECTOR (vec2)->contents [0]; | |
1189 | XVECTOR (XVECTOR (vec)->contents [i])->contents [1] | |
1190 | = XVECTOR (vec2)->contents [1]; | |
1191 | } | |
1192 | return vec; | |
1193 | } | |
1194 | ||
1195 | #endif | |
1196 | ||
1197 | \f | |
1198 | /* Variables for communication with x_handle_selection_notify. */ | |
1199 | static Atom reading_which_selection; | |
1200 | static Lisp_Object reading_selection_reply; | |
1201 | static Window reading_selection_window; | |
1202 | ||
1203 | /* Do protocol to read selection-data from the server. | |
1204 | Converts this to Lisp data and returns it. */ | |
1205 | ||
1206 | static Lisp_Object | |
1207 | x_get_foreign_selection (selection_symbol, target_type) | |
1208 | Lisp_Object selection_symbol, target_type; | |
1209 | { | |
378c33ca GM |
1210 | struct frame *sf = SELECTED_FRAME (); |
1211 | Window requestor_window = FRAME_X_WINDOW (sf); | |
1212 | Display *display = FRAME_X_DISPLAY (sf); | |
1213 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
5d0ba25b | 1214 | Time requestor_time = last_event_timestamp; |
5c3a351a RS |
1215 | Atom target_property = dpyinfo->Xatom_EMACS_TMP; |
1216 | Atom selection_atom = symbol_to_x_atom (dpyinfo, display, selection_symbol); | |
ede4db72 | 1217 | Atom type_atom; |
80da0190 | 1218 | int secs, usecs; |
5a499696 | 1219 | int count; |
55b2d45d | 1220 | Lisp_Object frame; |
ede4db72 RS |
1221 | |
1222 | if (CONSP (target_type)) | |
8e713be6 | 1223 | type_atom = symbol_to_x_atom (dpyinfo, display, XCAR (target_type)); |
ede4db72 | 1224 | else |
5c3a351a | 1225 | type_atom = symbol_to_x_atom (dpyinfo, display, target_type); |
ede4db72 RS |
1226 | |
1227 | BLOCK_INPUT; | |
d9c0d4a3 | 1228 | |
5a499696 | 1229 | count = x_catch_errors (display); |
d9c0d4a3 GM |
1230 | |
1231 | TRACE2 ("Get selection %s, type %s", | |
1232 | XGetAtomName (display, type_atom), | |
1233 | XGetAtomName (display, target_property)); | |
1234 | ||
ede4db72 | 1235 | XConvertSelection (display, selection_atom, type_atom, target_property, |
5d0ba25b | 1236 | requestor_window, requestor_time); |
5c3a351a | 1237 | XFlush (display); |
ede4db72 RS |
1238 | |
1239 | /* Prepare to block until the reply has been read. */ | |
5d0ba25b | 1240 | reading_selection_window = requestor_window; |
ede4db72 | 1241 | reading_which_selection = selection_atom; |
f3fbd155 | 1242 | XSETCAR (reading_selection_reply, Qnil); |
55b2d45d RS |
1243 | |
1244 | frame = some_frame_on_display (dpyinfo); | |
1245 | ||
1246 | /* If the display no longer has frames, we can't expect | |
1247 | to get many more selection requests from it, so don't | |
1248 | bother trying to queue them. */ | |
1249 | if (!NILP (frame)) | |
1250 | { | |
1251 | x_start_queuing_selection_requests (display); | |
1252 | ||
1253 | record_unwind_protect (queue_selection_requests_unwind, | |
1254 | frame); | |
1255 | } | |
ede4db72 RS |
1256 | UNBLOCK_INPUT; |
1257 | ||
80da0190 RS |
1258 | /* This allows quits. Also, don't wait forever. */ |
1259 | secs = x_selection_timeout / 1000; | |
1260 | usecs = (x_selection_timeout % 1000) * 1000; | |
d9c0d4a3 | 1261 | TRACE1 (" Start waiting %d secs for SelectionNotify", secs); |
80da0190 | 1262 | wait_reading_process_input (secs, usecs, reading_selection_reply, 0); |
d9c0d4a3 | 1263 | TRACE1 (" Got event = %d", !NILP (XCAR (reading_selection_reply))); |
ede4db72 | 1264 | |
7c6b2ea4 | 1265 | BLOCK_INPUT; |
a7b24d46 | 1266 | x_check_errors (display, "Cannot get selection: %s"); |
5a499696 | 1267 | x_uncatch_errors (display, count); |
7c6b2ea4 RS |
1268 | UNBLOCK_INPUT; |
1269 | ||
8e713be6 | 1270 | if (NILP (XCAR (reading_selection_reply))) |
606140dd | 1271 | error ("Timed out waiting for reply from selection owner"); |
8e713be6 | 1272 | if (EQ (XCAR (reading_selection_reply), Qlambda)) |
606140dd | 1273 | error ("No `%s' selection", XSYMBOL (selection_symbol)->name->data); |
ede4db72 RS |
1274 | |
1275 | /* Otherwise, the selection is waiting for us on the requested property. */ | |
1276 | return | |
5d0ba25b | 1277 | x_get_window_property_as_lisp_data (display, requestor_window, |
ede4db72 RS |
1278 | target_property, target_type, |
1279 | selection_atom); | |
1280 | } | |
1281 | \f | |
1282 | /* Subroutines of x_get_window_property_as_lisp_data */ | |
1283 | ||
4feb31b2 | 1284 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1285 | |
ede4db72 RS |
1286 | static void |
1287 | x_get_window_property (display, window, property, data_ret, bytes_ret, | |
1288 | actual_type_ret, actual_format_ret, actual_size_ret, | |
1289 | delete_p) | |
1290 | Display *display; | |
1291 | Window window; | |
1292 | Atom property; | |
1293 | unsigned char **data_ret; | |
1294 | int *bytes_ret; | |
1295 | Atom *actual_type_ret; | |
1296 | int *actual_format_ret; | |
1297 | unsigned long *actual_size_ret; | |
1298 | int delete_p; | |
1299 | { | |
1300 | int total_size; | |
1301 | unsigned long bytes_remaining; | |
1302 | int offset = 0; | |
1303 | unsigned char *tmp_data = 0; | |
1304 | int result; | |
1305 | int buffer_size = SELECTION_QUANTUM (display); | |
d9c0d4a3 GM |
1306 | |
1307 | if (buffer_size > MAX_SELECTION_QUANTUM) | |
1308 | buffer_size = MAX_SELECTION_QUANTUM; | |
ede4db72 RS |
1309 | |
1310 | BLOCK_INPUT; | |
d9c0d4a3 | 1311 | |
ede4db72 RS |
1312 | /* First probe the thing to find out how big it is. */ |
1313 | result = XGetWindowProperty (display, window, property, | |
137edb72 | 1314 | 0L, 0L, False, AnyPropertyType, |
ede4db72 RS |
1315 | actual_type_ret, actual_format_ret, |
1316 | actual_size_ret, | |
1317 | &bytes_remaining, &tmp_data); | |
ede4db72 RS |
1318 | if (result != Success) |
1319 | { | |
2f65feb6 | 1320 | UNBLOCK_INPUT; |
ede4db72 RS |
1321 | *data_ret = 0; |
1322 | *bytes_ret = 0; | |
1323 | return; | |
1324 | } | |
d9c0d4a3 | 1325 | |
0158abbc RS |
1326 | /* This was allocated by Xlib, so use XFree. */ |
1327 | XFree ((char *) tmp_data); | |
ede4db72 RS |
1328 | |
1329 | if (*actual_type_ret == None || *actual_format_ret == 0) | |
1330 | { | |
2f65feb6 | 1331 | UNBLOCK_INPUT; |
ede4db72 RS |
1332 | return; |
1333 | } | |
1334 | ||
1335 | total_size = bytes_remaining + 1; | |
1336 | *data_ret = (unsigned char *) xmalloc (total_size); | |
1337 | ||
2a1a4c9d | 1338 | /* Now read, until we've gotten it all. */ |
ede4db72 RS |
1339 | while (bytes_remaining) |
1340 | { | |
d9c0d4a3 | 1341 | #ifdef TRACE_SELECTION |
ede4db72 RS |
1342 | int last = bytes_remaining; |
1343 | #endif | |
1344 | result | |
1345 | = XGetWindowProperty (display, window, property, | |
137edb72 | 1346 | (long)offset/4, (long)buffer_size/4, |
2f65feb6 | 1347 | False, |
ede4db72 RS |
1348 | AnyPropertyType, |
1349 | actual_type_ret, actual_format_ret, | |
1350 | actual_size_ret, &bytes_remaining, &tmp_data); | |
d9c0d4a3 GM |
1351 | |
1352 | TRACE2 ("Read %ld bytes from property %s", | |
1353 | last - bytes_remaining, | |
1354 | XGetAtomName (display, property)); | |
1355 | ||
ede4db72 RS |
1356 | /* If this doesn't return Success at this point, it means that |
1357 | some clod deleted the selection while we were in the midst of | |
d9c0d4a3 GM |
1358 | reading it. Deal with that, I guess.... */ |
1359 | if (result != Success) | |
1360 | break; | |
ede4db72 RS |
1361 | *actual_size_ret *= *actual_format_ret / 8; |
1362 | bcopy (tmp_data, (*data_ret) + offset, *actual_size_ret); | |
1363 | offset += *actual_size_ret; | |
d9c0d4a3 | 1364 | |
0158abbc RS |
1365 | /* This was allocated by Xlib, so use XFree. */ |
1366 | XFree ((char *) tmp_data); | |
ede4db72 | 1367 | } |
2f65feb6 | 1368 | |
5c3a351a | 1369 | XFlush (display); |
ede4db72 RS |
1370 | UNBLOCK_INPUT; |
1371 | *bytes_ret = offset; | |
1372 | } | |
1373 | \f | |
4feb31b2 | 1374 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1375 | |
ede4db72 RS |
1376 | static void |
1377 | receive_incremental_selection (display, window, property, target_type, | |
1378 | min_size_bytes, data_ret, size_bytes_ret, | |
1379 | type_ret, format_ret, size_ret) | |
1380 | Display *display; | |
1381 | Window window; | |
1382 | Atom property; | |
1383 | Lisp_Object target_type; /* for error messages only */ | |
1384 | unsigned int min_size_bytes; | |
1385 | unsigned char **data_ret; | |
1386 | int *size_bytes_ret; | |
1387 | Atom *type_ret; | |
1388 | unsigned long *size_ret; | |
1389 | int *format_ret; | |
1390 | { | |
1391 | int offset = 0; | |
d1f21a66 | 1392 | struct prop_location *wait_object; |
ede4db72 RS |
1393 | *size_bytes_ret = min_size_bytes; |
1394 | *data_ret = (unsigned char *) xmalloc (*size_bytes_ret); | |
d9c0d4a3 GM |
1395 | |
1396 | TRACE1 ("Read %d bytes incrementally", min_size_bytes); | |
2f65feb6 RS |
1397 | |
1398 | /* At this point, we have read an INCR property. | |
1399 | Delete the property to ack it. | |
1400 | (But first, prepare to receive the next event in this handshake.) | |
ede4db72 RS |
1401 | |
1402 | Now, we must loop, waiting for the sending window to put a value on | |
1403 | that property, then reading the property, then deleting it to ack. | |
1404 | We are done when the sender places a property of length 0. | |
1405 | */ | |
2f65feb6 RS |
1406 | BLOCK_INPUT; |
1407 | XSelectInput (display, window, STANDARD_EVENT_SET | PropertyChangeMask); | |
d9c0d4a3 GM |
1408 | TRACE1 (" Delete property %s", |
1409 | XSYMBOL (x_atom_to_symbol (display, property))->name->data); | |
2f65feb6 | 1410 | XDeleteProperty (display, window, property); |
d9c0d4a3 GM |
1411 | TRACE1 (" Expect new value of property %s", |
1412 | XSYMBOL (x_atom_to_symbol (display, property))->name->data); | |
d1f21a66 RS |
1413 | wait_object = expect_property_change (display, window, property, |
1414 | PropertyNewValue); | |
5c3a351a | 1415 | XFlush (display); |
2f65feb6 RS |
1416 | UNBLOCK_INPUT; |
1417 | ||
ede4db72 RS |
1418 | while (1) |
1419 | { | |
1420 | unsigned char *tmp_data; | |
1421 | int tmp_size_bytes; | |
d9c0d4a3 GM |
1422 | |
1423 | TRACE0 (" Wait for property change"); | |
d1f21a66 | 1424 | wait_for_property_change (wait_object); |
d9c0d4a3 | 1425 | |
ede4db72 | 1426 | /* expect it again immediately, because x_get_window_property may |
2a1a4c9d | 1427 | .. no it won't, I don't get it. |
d9c0d4a3 GM |
1428 | .. Ok, I get it now, the Xt code that implements INCR is broken. */ |
1429 | TRACE0 (" Get property value"); | |
ede4db72 RS |
1430 | x_get_window_property (display, window, property, |
1431 | &tmp_data, &tmp_size_bytes, | |
1432 | type_ret, format_ret, size_ret, 1); | |
1433 | ||
d9c0d4a3 GM |
1434 | TRACE1 (" Read increment of %d bytes", tmp_size_bytes); |
1435 | ||
ede4db72 RS |
1436 | if (tmp_size_bytes == 0) /* we're done */ |
1437 | { | |
d9c0d4a3 GM |
1438 | TRACE0 ("Done reading incrementally"); |
1439 | ||
2f65feb6 RS |
1440 | if (! waiting_for_other_props_on_window (display, window)) |
1441 | XSelectInput (display, window, STANDARD_EVENT_SET); | |
d1f21a66 | 1442 | unexpect_property_change (wait_object); |
4feb31b2 | 1443 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1444 | calls xmalloc itself. */ |
4feb31b2 | 1445 | if (tmp_data) xfree (tmp_data); |
ede4db72 RS |
1446 | break; |
1447 | } | |
2f65feb6 RS |
1448 | |
1449 | BLOCK_INPUT; | |
d9c0d4a3 GM |
1450 | TRACE1 (" ACK by deleting property %s", |
1451 | XGetAtomName (display, property)); | |
2f65feb6 | 1452 | XDeleteProperty (display, window, property); |
d1f21a66 RS |
1453 | wait_object = expect_property_change (display, window, property, |
1454 | PropertyNewValue); | |
5c3a351a | 1455 | XFlush (display); |
2f65feb6 RS |
1456 | UNBLOCK_INPUT; |
1457 | ||
ede4db72 RS |
1458 | if (*size_bytes_ret < offset + tmp_size_bytes) |
1459 | { | |
ede4db72 RS |
1460 | *size_bytes_ret = offset + tmp_size_bytes; |
1461 | *data_ret = (unsigned char *) xrealloc (*data_ret, *size_bytes_ret); | |
1462 | } | |
d9c0d4a3 | 1463 | |
018cfa07 | 1464 | bcopy (tmp_data, (*data_ret) + offset, tmp_size_bytes); |
ede4db72 | 1465 | offset += tmp_size_bytes; |
d9c0d4a3 | 1466 | |
4feb31b2 | 1467 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1468 | calls xmalloc itself. */ |
4feb31b2 | 1469 | xfree (tmp_data); |
ede4db72 RS |
1470 | } |
1471 | } | |
d9c0d4a3 | 1472 | |
ede4db72 RS |
1473 | \f |
1474 | /* Once a requested selection is "ready" (we got a SelectionNotify event), | |
1475 | fetch value from property PROPERTY of X window WINDOW on display DISPLAY. | |
1476 | TARGET_TYPE and SELECTION_ATOM are used in error message if this fails. */ | |
1477 | ||
1478 | static Lisp_Object | |
1479 | x_get_window_property_as_lisp_data (display, window, property, target_type, | |
1480 | selection_atom) | |
1481 | Display *display; | |
1482 | Window window; | |
1483 | Atom property; | |
1484 | Lisp_Object target_type; /* for error messages only */ | |
1485 | Atom selection_atom; /* for error messages only */ | |
1486 | { | |
1487 | Atom actual_type; | |
1488 | int actual_format; | |
1489 | unsigned long actual_size; | |
1490 | unsigned char *data = 0; | |
1491 | int bytes = 0; | |
1492 | Lisp_Object val; | |
5c3a351a | 1493 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 | 1494 | |
d9c0d4a3 GM |
1495 | TRACE0 ("Reading selection data"); |
1496 | ||
ede4db72 RS |
1497 | x_get_window_property (display, window, property, &data, &bytes, |
1498 | &actual_type, &actual_format, &actual_size, 1); | |
1499 | if (! data) | |
1500 | { | |
1501 | int there_is_a_selection_owner; | |
1502 | BLOCK_INPUT; | |
1503 | there_is_a_selection_owner | |
1504 | = XGetSelectionOwner (display, selection_atom); | |
1505 | UNBLOCK_INPUT; | |
5a499696 RS |
1506 | Fsignal (Qerror, |
1507 | there_is_a_selection_owner | |
1508 | ? Fcons (build_string ("selection owner couldn't convert"), | |
ede4db72 RS |
1509 | actual_type |
1510 | ? Fcons (target_type, | |
d9c0d4a3 | 1511 | Fcons (x_atom_to_symbol (display, |
5c3a351a | 1512 | actual_type), |
ede4db72 RS |
1513 | Qnil)) |
1514 | : Fcons (target_type, Qnil)) | |
5a499696 | 1515 | : Fcons (build_string ("no selection"), |
d9c0d4a3 | 1516 | Fcons (x_atom_to_symbol (display, |
5a499696 RS |
1517 | selection_atom), |
1518 | Qnil))); | |
ede4db72 RS |
1519 | } |
1520 | ||
5c3a351a | 1521 | if (actual_type == dpyinfo->Xatom_INCR) |
ede4db72 RS |
1522 | { |
1523 | /* That wasn't really the data, just the beginning. */ | |
1524 | ||
1525 | unsigned int min_size_bytes = * ((unsigned int *) data); | |
1526 | BLOCK_INPUT; | |
4feb31b2 | 1527 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1528 | calls xmalloc itself. */ |
4feb31b2 | 1529 | xfree ((char *) data); |
ede4db72 RS |
1530 | UNBLOCK_INPUT; |
1531 | receive_incremental_selection (display, window, property, target_type, | |
1532 | min_size_bytes, &data, &bytes, | |
1533 | &actual_type, &actual_format, | |
1534 | &actual_size); | |
1535 | } | |
1536 | ||
2f65feb6 | 1537 | BLOCK_INPUT; |
d9c0d4a3 | 1538 | TRACE1 (" Delete property %s", XGetAtomName (display, property)); |
2f65feb6 | 1539 | XDeleteProperty (display, window, property); |
5c3a351a | 1540 | XFlush (display); |
2f65feb6 RS |
1541 | UNBLOCK_INPUT; |
1542 | ||
ede4db72 RS |
1543 | /* It's been read. Now convert it to a lisp object in some semi-rational |
1544 | manner. */ | |
1545 | val = selection_data_to_lisp_data (display, data, bytes, | |
1546 | actual_type, actual_format); | |
1547 | ||
4feb31b2 | 1548 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1549 | calls xmalloc itself. */ |
4feb31b2 | 1550 | xfree ((char *) data); |
ede4db72 RS |
1551 | return val; |
1552 | } | |
1553 | \f | |
1554 | /* These functions convert from the selection data read from the server into | |
1555 | something that we can use from Lisp, and vice versa. | |
1556 | ||
1557 | Type: Format: Size: Lisp Type: | |
1558 | ----- ------- ----- ----------- | |
1559 | * 8 * String | |
1560 | ATOM 32 1 Symbol | |
1561 | ATOM 32 > 1 Vector of Symbols | |
1562 | * 16 1 Integer | |
1563 | * 16 > 1 Vector of Integers | |
1564 | * 32 1 if <=16 bits: Integer | |
1565 | if > 16 bits: Cons of top16, bot16 | |
1566 | * 32 > 1 Vector of the above | |
1567 | ||
1568 | When converting a Lisp number to C, it is assumed to be of format 16 if | |
1569 | it is an integer, and of format 32 if it is a cons of two integers. | |
1570 | ||
1571 | When converting a vector of numbers from Lisp to C, it is assumed to be | |
1572 | of format 16 if every element in the vector is an integer, and is assumed | |
1573 | to be of format 32 if any element is a cons of two integers. | |
1574 | ||
1575 | When converting an object to C, it may be of the form (SYMBOL . <data>) | |
1576 | where SYMBOL is what we should claim that the type is. Format and | |
1577 | representation are as above. */ | |
1578 | ||
1579 | ||
1580 | ||
1581 | static Lisp_Object | |
1582 | selection_data_to_lisp_data (display, data, size, type, format) | |
1583 | Display *display; | |
1584 | unsigned char *data; | |
1585 | Atom type; | |
1586 | int size, format; | |
1587 | { | |
5c3a351a | 1588 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 | 1589 | |
5c3a351a | 1590 | if (type == dpyinfo->Xatom_NULL) |
ede4db72 RS |
1591 | return QNULL; |
1592 | ||
1593 | /* Convert any 8-bit data to a string, for compactness. */ | |
1594 | else if (format == 8) | |
e6c7c988 KH |
1595 | { |
1596 | Lisp_Object str; | |
f78da51e KH |
1597 | int require_encoding = 0; |
1598 | ||
d24e26b1 RS |
1599 | if ( |
1600 | #if 1 | |
1601 | 1 | |
1602 | #else | |
1603 | ! NILP (buffer_defaults.enable_multibyte_characters) | |
1604 | #endif | |
1605 | ) | |
f78da51e | 1606 | { |
5faa9b45 KH |
1607 | /* If TYPE is `TEXT' or `COMPOUND_TEXT', we should decode |
1608 | DATA to Emacs internal format because DATA may be encoded | |
1609 | in compound text format. In addtion, if TYPE is `STRING' | |
1610 | and DATA contains any 8-bit Latin-1 code, we should also | |
1611 | decode it. */ | |
1612 | if (type == dpyinfo->Xatom_TEXT | |
1613 | || type == dpyinfo->Xatom_COMPOUND_TEXT) | |
1614 | require_encoding = 1; | |
1615 | else if (type == XA_STRING) | |
f78da51e | 1616 | { |
5faa9b45 KH |
1617 | int i; |
1618 | for (i = 0; i < size; i++) | |
f78da51e | 1619 | { |
5faa9b45 KH |
1620 | if (data[i] >= 0x80) |
1621 | { | |
1622 | require_encoding = 1; | |
1623 | break; | |
1624 | } | |
f78da51e KH |
1625 | } |
1626 | } | |
1627 | } | |
1628 | if (!require_encoding) | |
061bda8d KH |
1629 | { |
1630 | str = make_unibyte_string ((char *) data, size); | |
1631 | Vlast_coding_system_used = Qraw_text; | |
1632 | } | |
e6c7c988 KH |
1633 | else |
1634 | { | |
9391d06a | 1635 | int bufsize; |
e6c7c988 KH |
1636 | unsigned char *buf; |
1637 | struct coding_system coding; | |
e6c7c988 | 1638 | |
16cd5029 KH |
1639 | if (NILP (Vnext_selection_coding_system)) |
1640 | Vnext_selection_coding_system = Vselection_coding_system; | |
2584c9ec | 1641 | setup_coding_system |
16cd5029 | 1642 | (Fcheck_coding_system(Vnext_selection_coding_system), &coding); |
9846d9db KH |
1643 | coding.src_multibyte = 0; |
1644 | coding.dst_multibyte = 1; | |
16cd5029 | 1645 | Vnext_selection_coding_system = Qnil; |
9391d06a | 1646 | coding.mode |= CODING_MODE_LAST_BLOCK; |
e6c7c988 KH |
1647 | bufsize = decoding_buffer_size (&coding, size); |
1648 | buf = (unsigned char *) xmalloc (bufsize); | |
9391d06a | 1649 | decode_coding (&coding, data, buf, size, bufsize); |
9846d9db KH |
1650 | str = make_string_from_bytes ((char *) buf, |
1651 | coding.produced_char, coding.produced); | |
4feb31b2 | 1652 | xfree (buf); |
061bda8d | 1653 | Vlast_coding_system_used = coding.symbol; |
e6c7c988 | 1654 | } |
0caef0ec | 1655 | compose_chars_in_text (0, XSTRING (str)->size, str); |
e6c7c988 KH |
1656 | return str; |
1657 | } | |
ede4db72 RS |
1658 | /* Convert a single atom to a Lisp_Symbol. Convert a set of atoms to |
1659 | a vector of symbols. | |
1660 | */ | |
1661 | else if (type == XA_ATOM) | |
1662 | { | |
1663 | int i; | |
1664 | if (size == sizeof (Atom)) | |
d9c0d4a3 | 1665 | return x_atom_to_symbol (display, *((Atom *) data)); |
ede4db72 RS |
1666 | else |
1667 | { | |
e607a484 RS |
1668 | Lisp_Object v = Fmake_vector (make_number (size / sizeof (Atom)), |
1669 | make_number (0)); | |
ede4db72 | 1670 | for (i = 0; i < size / sizeof (Atom); i++) |
e607a484 | 1671 | Faset (v, make_number (i), |
d9c0d4a3 | 1672 | x_atom_to_symbol (display, ((Atom *) data) [i])); |
ede4db72 RS |
1673 | return v; |
1674 | } | |
1675 | } | |
1676 | ||
1677 | /* Convert a single 16 or small 32 bit number to a Lisp_Int. | |
1678 | If the number is > 16 bits, convert it to a cons of integers, | |
1679 | 16 bits in each half. | |
1680 | */ | |
1681 | else if (format == 32 && size == sizeof (long)) | |
1682 | return long_to_cons (((unsigned long *) data) [0]); | |
1683 | else if (format == 16 && size == sizeof (short)) | |
1684 | return make_number ((int) (((unsigned short *) data) [0])); | |
1685 | ||
1686 | /* Convert any other kind of data to a vector of numbers, represented | |
1687 | as above (as an integer, or a cons of two 16 bit integers.) | |
1688 | */ | |
1689 | else if (format == 16) | |
1690 | { | |
1691 | int i; | |
937a3875 RS |
1692 | Lisp_Object v; |
1693 | v = Fmake_vector (make_number (size / 2), make_number (0)); | |
1694 | for (i = 0; i < size / 2; i++) | |
ede4db72 RS |
1695 | { |
1696 | int j = (int) ((unsigned short *) data) [i]; | |
e607a484 | 1697 | Faset (v, make_number (i), make_number (j)); |
ede4db72 RS |
1698 | } |
1699 | return v; | |
1700 | } | |
1701 | else | |
1702 | { | |
1703 | int i; | |
e607a484 | 1704 | Lisp_Object v = Fmake_vector (make_number (size / 4), make_number (0)); |
ede4db72 RS |
1705 | for (i = 0; i < size / 4; i++) |
1706 | { | |
1707 | unsigned long j = ((unsigned long *) data) [i]; | |
e607a484 | 1708 | Faset (v, make_number (i), long_to_cons (j)); |
ede4db72 RS |
1709 | } |
1710 | return v; | |
1711 | } | |
1712 | } | |
1713 | ||
1714 | ||
4feb31b2 | 1715 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1716 | |
ede4db72 RS |
1717 | static void |
1718 | lisp_data_to_selection_data (display, obj, | |
aca39f42 RS |
1719 | data_ret, type_ret, size_ret, |
1720 | format_ret, nofree_ret) | |
ede4db72 RS |
1721 | Display *display; |
1722 | Lisp_Object obj; | |
1723 | unsigned char **data_ret; | |
1724 | Atom *type_ret; | |
1725 | unsigned int *size_ret; | |
1726 | int *format_ret; | |
aca39f42 | 1727 | int *nofree_ret; |
ede4db72 RS |
1728 | { |
1729 | Lisp_Object type = Qnil; | |
5c3a351a | 1730 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
aca39f42 RS |
1731 | |
1732 | *nofree_ret = 0; | |
1733 | ||
8e713be6 | 1734 | if (CONSP (obj) && SYMBOLP (XCAR (obj))) |
ede4db72 | 1735 | { |
8e713be6 KR |
1736 | type = XCAR (obj); |
1737 | obj = XCDR (obj); | |
1738 | if (CONSP (obj) && NILP (XCDR (obj))) | |
1739 | obj = XCAR (obj); | |
ede4db72 RS |
1740 | } |
1741 | ||
1742 | if (EQ (obj, QNULL) || (EQ (type, QNULL))) | |
1743 | { /* This is not the same as declining */ | |
1744 | *format_ret = 32; | |
1745 | *size_ret = 0; | |
1746 | *data_ret = 0; | |
1747 | type = QNULL; | |
1748 | } | |
1749 | else if (STRINGP (obj)) | |
1750 | { | |
e6c7c988 KH |
1751 | /* Since we are now handling multilingual text, we must consider |
1752 | sending back compound text. */ | |
11270583 | 1753 | int stringp; |
9846d9db | 1754 | |
2b38b37e KH |
1755 | if (NILP (Vnext_selection_coding_system)) |
1756 | Vnext_selection_coding_system = Vselection_coding_system; | |
e6c7c988 | 1757 | |
2b38b37e KH |
1758 | *format_ret = 8; |
1759 | *data_ret = x_encode_text (obj, Vnext_selection_coding_system, | |
11270583 | 1760 | (int *) size_ret, &stringp); |
2b38b37e KH |
1761 | *nofree_ret = (*data_ret == XSTRING (obj)->data); |
1762 | if (NILP (type)) | |
11270583 | 1763 | type = (stringp ? QSTRING : QCOMPOUND_TEXT); |
2b38b37e KH |
1764 | Vlast_coding_system_used = (*nofree_ret |
1765 | ? Qraw_text | |
1766 | : Vnext_selection_coding_system); | |
1767 | Vnext_selection_coding_system = Qnil; | |
ede4db72 RS |
1768 | } |
1769 | else if (SYMBOLP (obj)) | |
1770 | { | |
1771 | *format_ret = 32; | |
1772 | *size_ret = 1; | |
1773 | *data_ret = (unsigned char *) xmalloc (sizeof (Atom) + 1); | |
1774 | (*data_ret) [sizeof (Atom)] = 0; | |
5c3a351a | 1775 | (*(Atom **) data_ret) [0] = symbol_to_x_atom (dpyinfo, display, obj); |
ede4db72 RS |
1776 | if (NILP (type)) type = QATOM; |
1777 | } | |
7da64e5c | 1778 | else if (INTEGERP (obj) |
ede4db72 RS |
1779 | && XINT (obj) < 0xFFFF |
1780 | && XINT (obj) > -0xFFFF) | |
1781 | { | |
1782 | *format_ret = 16; | |
1783 | *size_ret = 1; | |
1784 | *data_ret = (unsigned char *) xmalloc (sizeof (short) + 1); | |
1785 | (*data_ret) [sizeof (short)] = 0; | |
1786 | (*(short **) data_ret) [0] = (short) XINT (obj); | |
1787 | if (NILP (type)) type = QINTEGER; | |
1788 | } | |
a87ed99c | 1789 | else if (INTEGERP (obj) |
8e713be6 KR |
1790 | || (CONSP (obj) && INTEGERP (XCAR (obj)) |
1791 | && (INTEGERP (XCDR (obj)) | |
1792 | || (CONSP (XCDR (obj)) | |
1793 | && INTEGERP (XCAR (XCDR (obj))))))) | |
ede4db72 RS |
1794 | { |
1795 | *format_ret = 32; | |
1796 | *size_ret = 1; | |
1797 | *data_ret = (unsigned char *) xmalloc (sizeof (long) + 1); | |
1798 | (*data_ret) [sizeof (long)] = 0; | |
1799 | (*(unsigned long **) data_ret) [0] = cons_to_long (obj); | |
1800 | if (NILP (type)) type = QINTEGER; | |
1801 | } | |
1802 | else if (VECTORP (obj)) | |
1803 | { | |
1804 | /* Lisp_Vectors may represent a set of ATOMs; | |
1805 | a set of 16 or 32 bit INTEGERs; | |
1806 | or a set of ATOM_PAIRs (represented as [[A1 A2] [A3 A4] ...] | |
1807 | */ | |
1808 | int i; | |
1809 | ||
1810 | if (SYMBOLP (XVECTOR (obj)->contents [0])) | |
1811 | /* This vector is an ATOM set */ | |
1812 | { | |
1813 | if (NILP (type)) type = QATOM; | |
1814 | *size_ret = XVECTOR (obj)->size; | |
1815 | *format_ret = 32; | |
1816 | *data_ret = (unsigned char *) xmalloc ((*size_ret) * sizeof (Atom)); | |
1817 | for (i = 0; i < *size_ret; i++) | |
1818 | if (SYMBOLP (XVECTOR (obj)->contents [i])) | |
1819 | (*(Atom **) data_ret) [i] | |
5c3a351a | 1820 | = symbol_to_x_atom (dpyinfo, display, XVECTOR (obj)->contents [i]); |
ede4db72 RS |
1821 | else |
1822 | Fsignal (Qerror, /* Qselection_error */ | |
1823 | Fcons (build_string | |
1824 | ("all elements of selection vector must have same type"), | |
1825 | Fcons (obj, Qnil))); | |
1826 | } | |
1827 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1828 | else if (VECTORP (XVECTOR (obj)->contents [0])) | |
1829 | /* This vector is an ATOM_PAIR set */ | |
1830 | { | |
1831 | if (NILP (type)) type = QATOM_PAIR; | |
1832 | *size_ret = XVECTOR (obj)->size; | |
1833 | *format_ret = 32; | |
1834 | *data_ret = (unsigned char *) | |
1835 | xmalloc ((*size_ret) * sizeof (Atom) * 2); | |
1836 | for (i = 0; i < *size_ret; i++) | |
1837 | if (VECTORP (XVECTOR (obj)->contents [i])) | |
1838 | { | |
1839 | Lisp_Object pair = XVECTOR (obj)->contents [i]; | |
1840 | if (XVECTOR (pair)->size != 2) | |
1841 | Fsignal (Qerror, | |
1842 | Fcons (build_string | |
1843 | ("elements of the vector must be vectors of exactly two elements"), | |
1844 | Fcons (pair, Qnil))); | |
1845 | ||
1846 | (*(Atom **) data_ret) [i * 2] | |
5c3a351a RS |
1847 | = symbol_to_x_atom (dpyinfo, display, |
1848 | XVECTOR (pair)->contents [0]); | |
ede4db72 | 1849 | (*(Atom **) data_ret) [(i * 2) + 1] |
5c3a351a RS |
1850 | = symbol_to_x_atom (dpyinfo, display, |
1851 | XVECTOR (pair)->contents [1]); | |
ede4db72 RS |
1852 | } |
1853 | else | |
1854 | Fsignal (Qerror, | |
1855 | Fcons (build_string | |
1856 | ("all elements of the vector must be of the same type"), | |
1857 | Fcons (obj, Qnil))); | |
1858 | ||
1859 | } | |
1860 | #endif | |
1861 | else | |
1862 | /* This vector is an INTEGER set, or something like it */ | |
1863 | { | |
1864 | *size_ret = XVECTOR (obj)->size; | |
1865 | if (NILP (type)) type = QINTEGER; | |
1866 | *format_ret = 16; | |
1867 | for (i = 0; i < *size_ret; i++) | |
1868 | if (CONSP (XVECTOR (obj)->contents [i])) | |
1869 | *format_ret = 32; | |
7da64e5c | 1870 | else if (!INTEGERP (XVECTOR (obj)->contents [i])) |
ede4db72 RS |
1871 | Fsignal (Qerror, /* Qselection_error */ |
1872 | Fcons (build_string | |
1873 | ("elements of selection vector must be integers or conses of integers"), | |
1874 | Fcons (obj, Qnil))); | |
1875 | ||
1876 | *data_ret = (unsigned char *) xmalloc (*size_ret * (*format_ret/8)); | |
1877 | for (i = 0; i < *size_ret; i++) | |
1878 | if (*format_ret == 32) | |
1879 | (*((unsigned long **) data_ret)) [i] | |
1880 | = cons_to_long (XVECTOR (obj)->contents [i]); | |
1881 | else | |
1882 | (*((unsigned short **) data_ret)) [i] | |
1883 | = (unsigned short) cons_to_long (XVECTOR (obj)->contents [i]); | |
1884 | } | |
1885 | } | |
1886 | else | |
1887 | Fsignal (Qerror, /* Qselection_error */ | |
1888 | Fcons (build_string ("unrecognised selection data"), | |
1889 | Fcons (obj, Qnil))); | |
1890 | ||
5c3a351a | 1891 | *type_ret = symbol_to_x_atom (dpyinfo, display, type); |
ede4db72 RS |
1892 | } |
1893 | ||
1894 | static Lisp_Object | |
1895 | clean_local_selection_data (obj) | |
1896 | Lisp_Object obj; | |
1897 | { | |
1898 | if (CONSP (obj) | |
8e713be6 KR |
1899 | && INTEGERP (XCAR (obj)) |
1900 | && CONSP (XCDR (obj)) | |
1901 | && INTEGERP (XCAR (XCDR (obj))) | |
1902 | && NILP (XCDR (XCDR (obj)))) | |
1903 | obj = Fcons (XCAR (obj), XCDR (obj)); | |
ede4db72 RS |
1904 | |
1905 | if (CONSP (obj) | |
8e713be6 KR |
1906 | && INTEGERP (XCAR (obj)) |
1907 | && INTEGERP (XCDR (obj))) | |
ede4db72 | 1908 | { |
8e713be6 KR |
1909 | if (XINT (XCAR (obj)) == 0) |
1910 | return XCDR (obj); | |
1911 | if (XINT (XCAR (obj)) == -1) | |
1912 | return make_number (- XINT (XCDR (obj))); | |
ede4db72 RS |
1913 | } |
1914 | if (VECTORP (obj)) | |
1915 | { | |
1916 | int i; | |
1917 | int size = XVECTOR (obj)->size; | |
1918 | Lisp_Object copy; | |
1919 | if (size == 1) | |
1920 | return clean_local_selection_data (XVECTOR (obj)->contents [0]); | |
e607a484 | 1921 | copy = Fmake_vector (make_number (size), Qnil); |
ede4db72 RS |
1922 | for (i = 0; i < size; i++) |
1923 | XVECTOR (copy)->contents [i] | |
1924 | = clean_local_selection_data (XVECTOR (obj)->contents [i]); | |
1925 | return copy; | |
1926 | } | |
1927 | return obj; | |
1928 | } | |
1929 | \f | |
1930 | /* Called from XTread_socket to handle SelectionNotify events. | |
606140dd KH |
1931 | If it's the selection we are waiting for, stop waiting |
1932 | by setting the car of reading_selection_reply to non-nil. | |
1933 | We store t there if the reply is successful, lambda if not. */ | |
ede4db72 RS |
1934 | |
1935 | void | |
1936 | x_handle_selection_notify (event) | |
1937 | XSelectionEvent *event; | |
1938 | { | |
5d0ba25b | 1939 | if (event->requestor != reading_selection_window) |
ede4db72 RS |
1940 | return; |
1941 | if (event->selection != reading_which_selection) | |
1942 | return; | |
1943 | ||
d9c0d4a3 | 1944 | TRACE0 ("Received SelectionNotify"); |
f3fbd155 KR |
1945 | XSETCAR (reading_selection_reply, |
1946 | (event->property != 0 ? Qt : Qlambda)); | |
ede4db72 RS |
1947 | } |
1948 | ||
1949 | \f | |
a0d76c27 EN |
1950 | DEFUN ("x-own-selection-internal", Fx_own_selection_internal, |
1951 | Sx_own_selection_internal, 2, 2, 0, | |
ede4db72 RS |
1952 | "Assert an X selection of the given TYPE with the given VALUE.\n\ |
1953 | TYPE is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'.\n\ | |
1954 | \(Those are literal upper-case symbol names, since that's what X expects.)\n\ | |
1955 | VALUE is typically a string, or a cons of two markers, but may be\n\ | |
a87ed99c | 1956 | anything that the functions on `selection-converter-alist' know about.") |
ede4db72 RS |
1957 | (selection_name, selection_value) |
1958 | Lisp_Object selection_name, selection_value; | |
1959 | { | |
703e0710 | 1960 | check_x (); |
ede4db72 | 1961 | CHECK_SYMBOL (selection_name, 0); |
606140dd | 1962 | if (NILP (selection_value)) error ("selection-value may not be nil"); |
ede4db72 RS |
1963 | x_own_selection (selection_name, selection_value); |
1964 | return selection_value; | |
1965 | } | |
1966 | ||
1967 | ||
1968 | /* Request the selection value from the owner. If we are the owner, | |
1969 | simply return our selection value. If we are not the owner, this | |
1970 | will block until all of the data has arrived. */ | |
1971 | ||
a0d76c27 EN |
1972 | DEFUN ("x-get-selection-internal", Fx_get_selection_internal, |
1973 | Sx_get_selection_internal, 2, 2, 0, | |
ede4db72 RS |
1974 | "Return text selected from some X window.\n\ |
1975 | SELECTION is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'.\n\ | |
1976 | \(Those are literal upper-case symbol names, since that's what X expects.)\n\ | |
a87ed99c | 1977 | TYPE is the type of data desired, typically `STRING'.") |
ede4db72 RS |
1978 | (selection_symbol, target_type) |
1979 | Lisp_Object selection_symbol, target_type; | |
1980 | { | |
1981 | Lisp_Object val = Qnil; | |
1982 | struct gcpro gcpro1, gcpro2; | |
1983 | GCPRO2 (target_type, val); /* we store newly consed data into these */ | |
703e0710 | 1984 | check_x (); |
ede4db72 RS |
1985 | CHECK_SYMBOL (selection_symbol, 0); |
1986 | ||
1987 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1988 | if (CONSP (target_type) | |
8e713be6 | 1989 | && XCAR (target_type) == QMULTIPLE) |
ede4db72 | 1990 | { |
8e713be6 | 1991 | CHECK_VECTOR (XCDR (target_type), 0); |
ede4db72 RS |
1992 | /* So we don't destructively modify this... */ |
1993 | target_type = copy_multiple_data (target_type); | |
1994 | } | |
1995 | else | |
1996 | #endif | |
1997 | CHECK_SYMBOL (target_type, 0); | |
1998 | ||
1999 | val = x_get_local_selection (selection_symbol, target_type); | |
2000 | ||
2001 | if (NILP (val)) | |
2002 | { | |
2003 | val = x_get_foreign_selection (selection_symbol, target_type); | |
2004 | goto DONE; | |
2005 | } | |
2006 | ||
2007 | if (CONSP (val) | |
8e713be6 | 2008 | && SYMBOLP (XCAR (val))) |
ede4db72 | 2009 | { |
8e713be6 KR |
2010 | val = XCDR (val); |
2011 | if (CONSP (val) && NILP (XCDR (val))) | |
2012 | val = XCAR (val); | |
ede4db72 RS |
2013 | } |
2014 | val = clean_local_selection_data (val); | |
2015 | DONE: | |
2016 | UNGCPRO; | |
2017 | return val; | |
2018 | } | |
2019 | ||
a0d76c27 EN |
2020 | DEFUN ("x-disown-selection-internal", Fx_disown_selection_internal, |
2021 | Sx_disown_selection_internal, 1, 2, 0, | |
a87ed99c RS |
2022 | "If we own the selection SELECTION, disown it.\n\ |
2023 | Disowning it means there is no such selection.") | |
ede4db72 RS |
2024 | (selection, time) |
2025 | Lisp_Object selection; | |
2026 | Lisp_Object time; | |
2027 | { | |
ede4db72 RS |
2028 | Time timestamp; |
2029 | Atom selection_atom; | |
44d46531 | 2030 | struct selection_input_event event; |
3834c318 | 2031 | Display *display; |
5c3a351a | 2032 | struct x_display_info *dpyinfo; |
378c33ca | 2033 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2034 | |
703e0710 | 2035 | check_x (); |
378c33ca GM |
2036 | display = FRAME_X_DISPLAY (sf); |
2037 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
ede4db72 RS |
2038 | CHECK_SYMBOL (selection, 0); |
2039 | if (NILP (time)) | |
7da64e5c | 2040 | timestamp = last_event_timestamp; |
ede4db72 RS |
2041 | else |
2042 | timestamp = cons_to_long (time); | |
2043 | ||
2044 | if (NILP (assq_no_quit (selection, Vselection_alist))) | |
2045 | return Qnil; /* Don't disown the selection when we're not the owner. */ | |
2046 | ||
5c3a351a | 2047 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection); |
ede4db72 RS |
2048 | |
2049 | BLOCK_INPUT; | |
2050 | XSetSelectionOwner (display, selection_atom, None, timestamp); | |
2051 | UNBLOCK_INPUT; | |
2052 | ||
eb8c3be9 | 2053 | /* It doesn't seem to be guaranteed that a SelectionClear event will be |
ede4db72 RS |
2054 | generated for a window which owns the selection when that window sets |
2055 | the selection owner to None. The NCD server does, the MIT Sun4 server | |
2056 | doesn't. So we synthesize one; this means we might get two, but | |
2057 | that's ok, because the second one won't have any effect. */ | |
8d47f8c4 RS |
2058 | SELECTION_EVENT_DISPLAY (&event) = display; |
2059 | SELECTION_EVENT_SELECTION (&event) = selection_atom; | |
2060 | SELECTION_EVENT_TIME (&event) = timestamp; | |
44d46531 | 2061 | x_handle_selection_clear ((struct input_event *) &event); |
ede4db72 RS |
2062 | |
2063 | return Qt; | |
2064 | } | |
2065 | ||
a87ed99c RS |
2066 | /* Get rid of all the selections in buffer BUFFER. |
2067 | This is used when we kill a buffer. */ | |
2068 | ||
2069 | void | |
2070 | x_disown_buffer_selections (buffer) | |
2071 | Lisp_Object buffer; | |
2072 | { | |
2073 | Lisp_Object tail; | |
2074 | struct buffer *buf = XBUFFER (buffer); | |
2075 | ||
8e713be6 | 2076 | for (tail = Vselection_alist; CONSP (tail); tail = XCDR (tail)) |
a87ed99c RS |
2077 | { |
2078 | Lisp_Object elt, value; | |
8e713be6 KR |
2079 | elt = XCAR (tail); |
2080 | value = XCDR (elt); | |
2081 | if (CONSP (value) && MARKERP (XCAR (value)) | |
2082 | && XMARKER (XCAR (value))->buffer == buf) | |
2083 | Fx_disown_selection_internal (XCAR (elt), Qnil); | |
a87ed99c RS |
2084 | } |
2085 | } | |
ede4db72 RS |
2086 | |
2087 | DEFUN ("x-selection-owner-p", Fx_selection_owner_p, Sx_selection_owner_p, | |
2088 | 0, 1, 0, | |
a87ed99c | 2089 | "Whether the current Emacs process owns the given X Selection.\n\ |
ede4db72 RS |
2090 | The arg should be the name of the selection in question, typically one of\n\ |
2091 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'.\n\ | |
2092 | \(Those are literal upper-case symbol names, since that's what X expects.)\n\ | |
2093 | For convenience, the symbol nil is the same as `PRIMARY',\n\ | |
2094 | and t is the same as `SECONDARY'.)") | |
2095 | (selection) | |
2096 | Lisp_Object selection; | |
2097 | { | |
703e0710 | 2098 | check_x (); |
ede4db72 RS |
2099 | CHECK_SYMBOL (selection, 0); |
2100 | if (EQ (selection, Qnil)) selection = QPRIMARY; | |
2101 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
2102 | ||
2103 | if (NILP (Fassq (selection, Vselection_alist))) | |
2104 | return Qnil; | |
2105 | return Qt; | |
2106 | } | |
2107 | ||
2108 | DEFUN ("x-selection-exists-p", Fx_selection_exists_p, Sx_selection_exists_p, | |
2109 | 0, 1, 0, | |
2110 | "Whether there is an owner for the given X Selection.\n\ | |
2111 | The arg should be the name of the selection in question, typically one of\n\ | |
2112 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'.\n\ | |
2113 | \(Those are literal upper-case symbol names, since that's what X expects.)\n\ | |
2114 | For convenience, the symbol nil is the same as `PRIMARY',\n\ | |
2115 | and t is the same as `SECONDARY'.)") | |
2116 | (selection) | |
2117 | Lisp_Object selection; | |
2118 | { | |
2119 | Window owner; | |
356ba514 | 2120 | Atom atom; |
3834c318 | 2121 | Display *dpy; |
378c33ca | 2122 | struct frame *sf = SELECTED_FRAME (); |
3834c318 | 2123 | |
b8c70430 | 2124 | /* It should be safe to call this before we have an X frame. */ |
378c33ca | 2125 | if (! FRAME_X_P (sf)) |
b8c70430 RS |
2126 | return Qnil; |
2127 | ||
378c33ca | 2128 | dpy = FRAME_X_DISPLAY (sf); |
ede4db72 RS |
2129 | CHECK_SYMBOL (selection, 0); |
2130 | if (!NILP (Fx_selection_owner_p (selection))) | |
2131 | return Qt; | |
356ba514 RS |
2132 | if (EQ (selection, Qnil)) selection = QPRIMARY; |
2133 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
378c33ca | 2134 | atom = symbol_to_x_atom (FRAME_X_DISPLAY_INFO (sf), dpy, selection); |
356ba514 RS |
2135 | if (atom == 0) |
2136 | return Qnil; | |
ede4db72 | 2137 | BLOCK_INPUT; |
356ba514 | 2138 | owner = XGetSelectionOwner (dpy, atom); |
ede4db72 RS |
2139 | UNBLOCK_INPUT; |
2140 | return (owner ? Qt : Qnil); | |
2141 | } | |
2142 | ||
2143 | \f | |
2144 | #ifdef CUT_BUFFER_SUPPORT | |
2145 | ||
ede4db72 RS |
2146 | /* Ensure that all 8 cut buffers exist. ICCCM says we gotta... */ |
2147 | static void | |
2148 | initialize_cut_buffers (display, window) | |
2149 | Display *display; | |
2150 | Window window; | |
2151 | { | |
2152 | unsigned char *data = (unsigned char *) ""; | |
2153 | BLOCK_INPUT; | |
2154 | #define FROB(atom) XChangeProperty (display, window, atom, XA_STRING, 8, \ | |
2155 | PropModeAppend, data, 0) | |
2156 | FROB (XA_CUT_BUFFER0); | |
2157 | FROB (XA_CUT_BUFFER1); | |
2158 | FROB (XA_CUT_BUFFER2); | |
2159 | FROB (XA_CUT_BUFFER3); | |
2160 | FROB (XA_CUT_BUFFER4); | |
2161 | FROB (XA_CUT_BUFFER5); | |
2162 | FROB (XA_CUT_BUFFER6); | |
2163 | FROB (XA_CUT_BUFFER7); | |
2164 | #undef FROB | |
2165 | UNBLOCK_INPUT; | |
ede4db72 RS |
2166 | } |
2167 | ||
2168 | ||
a87ed99c | 2169 | #define CHECK_CUT_BUFFER(symbol,n) \ |
ede4db72 RS |
2170 | { CHECK_SYMBOL ((symbol), (n)); \ |
2171 | if (!EQ((symbol), QCUT_BUFFER0) && !EQ((symbol), QCUT_BUFFER1) \ | |
2172 | && !EQ((symbol), QCUT_BUFFER2) && !EQ((symbol), QCUT_BUFFER3) \ | |
2173 | && !EQ((symbol), QCUT_BUFFER4) && !EQ((symbol), QCUT_BUFFER5) \ | |
2174 | && !EQ((symbol), QCUT_BUFFER6) && !EQ((symbol), QCUT_BUFFER7)) \ | |
2175 | Fsignal (Qerror, \ | |
a87ed99c | 2176 | Fcons (build_string ("doesn't name a cut buffer"), \ |
ede4db72 RS |
2177 | Fcons ((symbol), Qnil))); \ |
2178 | } | |
2179 | ||
a87ed99c RS |
2180 | DEFUN ("x-get-cut-buffer-internal", Fx_get_cut_buffer_internal, |
2181 | Sx_get_cut_buffer_internal, 1, 1, 0, | |
2182 | "Returns the value of the named cut buffer (typically CUT_BUFFER0).") | |
ede4db72 RS |
2183 | (buffer) |
2184 | Lisp_Object buffer; | |
2185 | { | |
3834c318 | 2186 | Window window; |
ede4db72 RS |
2187 | Atom buffer_atom; |
2188 | unsigned char *data; | |
2189 | int bytes; | |
2190 | Atom type; | |
2191 | int format; | |
2192 | unsigned long size; | |
2193 | Lisp_Object ret; | |
3834c318 | 2194 | Display *display; |
5c3a351a | 2195 | struct x_display_info *dpyinfo; |
378c33ca | 2196 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2197 | |
703e0710 | 2198 | check_x (); |
378c33ca GM |
2199 | display = FRAME_X_DISPLAY (sf); |
2200 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
3834c318 | 2201 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
a87ed99c | 2202 | CHECK_CUT_BUFFER (buffer, 0); |
5c3a351a | 2203 | buffer_atom = symbol_to_x_atom (dpyinfo, display, buffer); |
ede4db72 RS |
2204 | |
2205 | x_get_window_property (display, window, buffer_atom, &data, &bytes, | |
2206 | &type, &format, &size, 0); | |
22e00739 RS |
2207 | if (!data || !format) |
2208 | return Qnil; | |
ede4db72 RS |
2209 | |
2210 | if (format != 8 || type != XA_STRING) | |
2211 | Fsignal (Qerror, | |
2212 | Fcons (build_string ("cut buffer doesn't contain 8-bit data"), | |
d9c0d4a3 | 2213 | Fcons (x_atom_to_symbol (display, type), |
ede4db72 RS |
2214 | Fcons (make_number (format), Qnil)))); |
2215 | ||
2216 | ret = (bytes ? make_string ((char *) data, bytes) : Qnil); | |
4feb31b2 | 2217 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 2218 | calls xmalloc itself. */ |
4feb31b2 | 2219 | xfree (data); |
ede4db72 RS |
2220 | return ret; |
2221 | } | |
2222 | ||
2223 | ||
a87ed99c RS |
2224 | DEFUN ("x-store-cut-buffer-internal", Fx_store_cut_buffer_internal, |
2225 | Sx_store_cut_buffer_internal, 2, 2, 0, | |
2226 | "Sets the value of the named cut buffer (typically CUT_BUFFER0).") | |
ede4db72 RS |
2227 | (buffer, string) |
2228 | Lisp_Object buffer, string; | |
2229 | { | |
3834c318 | 2230 | Window window; |
ede4db72 RS |
2231 | Atom buffer_atom; |
2232 | unsigned char *data; | |
2233 | int bytes; | |
2234 | int bytes_remaining; | |
3834c318 RS |
2235 | int max_bytes; |
2236 | Display *display; | |
378c33ca | 2237 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2238 | |
703e0710 | 2239 | check_x (); |
378c33ca | 2240 | display = FRAME_X_DISPLAY (sf); |
3834c318 RS |
2241 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
2242 | ||
2243 | max_bytes = SELECTION_QUANTUM (display); | |
2244 | if (max_bytes > MAX_SELECTION_QUANTUM) | |
2245 | max_bytes = MAX_SELECTION_QUANTUM; | |
2246 | ||
a87ed99c | 2247 | CHECK_CUT_BUFFER (buffer, 0); |
ede4db72 | 2248 | CHECK_STRING (string, 0); |
378c33ca | 2249 | buffer_atom = symbol_to_x_atom (FRAME_X_DISPLAY_INFO (sf), |
5c3a351a | 2250 | display, buffer); |
ede4db72 | 2251 | data = (unsigned char *) XSTRING (string)->data; |
fc932ac6 | 2252 | bytes = STRING_BYTES (XSTRING (string)); |
ede4db72 RS |
2253 | bytes_remaining = bytes; |
2254 | ||
378c33ca | 2255 | if (! FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized) |
04649dbc KH |
2256 | { |
2257 | initialize_cut_buffers (display, window); | |
378c33ca | 2258 | FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized = 1; |
04649dbc | 2259 | } |
ede4db72 RS |
2260 | |
2261 | BLOCK_INPUT; | |
10608c8c RS |
2262 | |
2263 | /* Don't mess up with an empty value. */ | |
2264 | if (!bytes_remaining) | |
2265 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
2266 | PropModeReplace, data, 0); | |
2267 | ||
ede4db72 RS |
2268 | while (bytes_remaining) |
2269 | { | |
2270 | int chunk = (bytes_remaining < max_bytes | |
2271 | ? bytes_remaining : max_bytes); | |
2272 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
2273 | (bytes_remaining == bytes | |
2274 | ? PropModeReplace | |
2275 | : PropModeAppend), | |
2276 | data, chunk); | |
2277 | data += chunk; | |
2278 | bytes_remaining -= chunk; | |
2279 | } | |
2280 | UNBLOCK_INPUT; | |
2281 | return string; | |
2282 | } | |
2283 | ||
2284 | ||
a87ed99c RS |
2285 | DEFUN ("x-rotate-cut-buffers-internal", Fx_rotate_cut_buffers_internal, |
2286 | Sx_rotate_cut_buffers_internal, 1, 1, 0, | |
88623f1c RS |
2287 | "Rotate the values of the cut buffers by the given number of step.\n\ |
2288 | Positive means shift the values forward, negative means backward.") | |
ede4db72 RS |
2289 | (n) |
2290 | Lisp_Object n; | |
2291 | { | |
3834c318 RS |
2292 | Window window; |
2293 | Atom props[8]; | |
2294 | Display *display; | |
378c33ca | 2295 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2296 | |
703e0710 | 2297 | check_x (); |
378c33ca | 2298 | display = FRAME_X_DISPLAY (sf); |
3834c318 | 2299 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
7da64e5c | 2300 | CHECK_NUMBER (n, 0); |
3834c318 RS |
2301 | if (XINT (n) == 0) |
2302 | return n; | |
378c33ca | 2303 | if (! FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized) |
04649dbc KH |
2304 | { |
2305 | initialize_cut_buffers (display, window); | |
378c33ca | 2306 | FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized = 1; |
04649dbc | 2307 | } |
3834c318 | 2308 | |
ede4db72 RS |
2309 | props[0] = XA_CUT_BUFFER0; |
2310 | props[1] = XA_CUT_BUFFER1; | |
2311 | props[2] = XA_CUT_BUFFER2; | |
2312 | props[3] = XA_CUT_BUFFER3; | |
2313 | props[4] = XA_CUT_BUFFER4; | |
2314 | props[5] = XA_CUT_BUFFER5; | |
2315 | props[6] = XA_CUT_BUFFER6; | |
2316 | props[7] = XA_CUT_BUFFER7; | |
2317 | BLOCK_INPUT; | |
2318 | XRotateWindowProperties (display, window, props, 8, XINT (n)); | |
2319 | UNBLOCK_INPUT; | |
2320 | return n; | |
2321 | } | |
2322 | ||
2323 | #endif | |
2324 | \f | |
ede4db72 RS |
2325 | void |
2326 | syms_of_xselect () | |
2327 | { | |
ede4db72 RS |
2328 | defsubr (&Sx_get_selection_internal); |
2329 | defsubr (&Sx_own_selection_internal); | |
2330 | defsubr (&Sx_disown_selection_internal); | |
2331 | defsubr (&Sx_selection_owner_p); | |
2332 | defsubr (&Sx_selection_exists_p); | |
2333 | ||
2334 | #ifdef CUT_BUFFER_SUPPORT | |
a87ed99c RS |
2335 | defsubr (&Sx_get_cut_buffer_internal); |
2336 | defsubr (&Sx_store_cut_buffer_internal); | |
2337 | defsubr (&Sx_rotate_cut_buffers_internal); | |
ede4db72 RS |
2338 | #endif |
2339 | ||
2340 | reading_selection_reply = Fcons (Qnil, Qnil); | |
2341 | staticpro (&reading_selection_reply); | |
2342 | reading_selection_window = 0; | |
2343 | reading_which_selection = 0; | |
2344 | ||
2345 | property_change_wait_list = 0; | |
2f65feb6 | 2346 | prop_location_identifier = 0; |
ede4db72 RS |
2347 | property_change_reply = Fcons (Qnil, Qnil); |
2348 | staticpro (&property_change_reply); | |
2349 | ||
2350 | Vselection_alist = Qnil; | |
2351 | staticpro (&Vselection_alist); | |
2352 | ||
2353 | DEFVAR_LISP ("selection-converter-alist", &Vselection_converter_alist, | |
4cf066bb | 2354 | "An alist associating X Windows selection-types with functions.\n\ |
ede4db72 RS |
2355 | These functions are called to convert the selection, with three args:\n\ |
2356 | the name of the selection (typically `PRIMARY', `SECONDARY', or `CLIPBOARD');\n\ | |
2357 | a desired type to which the selection should be converted;\n\ | |
2358 | and the local selection value (whatever was given to `x-own-selection').\n\ | |
2359 | \n\ | |
2360 | The function should return the value to send to the X server\n\ | |
2361 | \(typically a string). A return value of nil\n\ | |
2362 | means that the conversion could not be done.\n\ | |
2363 | A return value which is the symbol `NULL'\n\ | |
2364 | means that a side-effect was executed,\n\ | |
2365 | and there is no meaningful selection value."); | |
2366 | Vselection_converter_alist = Qnil; | |
2367 | ||
2368 | DEFVAR_LISP ("x-lost-selection-hooks", &Vx_lost_selection_hooks, | |
4cf066bb | 2369 | "A list of functions to be called when Emacs loses an X selection.\n\ |
ede4db72 RS |
2370 | \(This happens when some other X client makes its own selection\n\ |
2371 | or when a Lisp program explicitly clears the selection.)\n\ | |
2372 | The functions are called with one argument, the selection type\n\ | |
d31b6237 | 2373 | \(a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD')."); |
ede4db72 RS |
2374 | Vx_lost_selection_hooks = Qnil; |
2375 | ||
2376 | DEFVAR_LISP ("x-sent-selection-hooks", &Vx_sent_selection_hooks, | |
4cf066bb | 2377 | "A list of functions to be called when Emacs answers a selection request.\n\ |
ede4db72 RS |
2378 | The functions are called with four arguments:\n\ |
2379 | - the selection name (typically `PRIMARY', `SECONDARY', or `CLIPBOARD');\n\ | |
2380 | - the selection-type which Emacs was asked to convert the\n\ | |
2381 | selection into before sending (for example, `STRING' or `LENGTH');\n\ | |
2382 | - a flag indicating success or failure for responding to the request.\n\ | |
2383 | We might have failed (and declined the request) for any number of reasons,\n\ | |
2384 | including being asked for a selection that we no longer own, or being asked\n\ | |
2385 | to convert into a type that we don't know about or that is inappropriate.\n\ | |
2386 | This hook doesn't let you change the behavior of Emacs's selection replies,\n\ | |
2387 | it merely informs you that they have happened."); | |
2388 | Vx_sent_selection_hooks = Qnil; | |
2389 | ||
93e4ce1b | 2390 | DEFVAR_LISP ("selection-coding-system", &Vselection_coding_system, |
4cf066bb RS |
2391 | "Coding system for communicating with other X clients.\n\ |
2392 | When sending or receiving text via cut_buffer, selection, and clipboard,\n\ | |
2393 | the text is encoded or decoded by this coding system.\n\ | |
aac77ff1 | 2394 | The default value is `compound-text'."); |
93e4ce1b | 2395 | Vselection_coding_system = intern ("compound-text"); |
2584c9ec | 2396 | |
16cd5029 KH |
2397 | DEFVAR_LISP ("next-selection-coding-system", &Vnext_selection_coding_system, |
2398 | "Coding system for the next communication with other X clients.\n\ | |
2399 | Usually, `selection-coding-system' is used for communicating with\n\ | |
2400 | other X clients. But, if this variable is set, it is used for the\n\ | |
2401 | next communication only. After the communication, this variable is\n\ | |
2402 | set to nil."); | |
2403 | Vnext_selection_coding_system = Qnil; | |
2404 | ||
ede4db72 | 2405 | DEFVAR_INT ("x-selection-timeout", &x_selection_timeout, |
4cf066bb | 2406 | "Number of milliseconds to wait for a selection reply.\n\ |
2a1a4c9d | 2407 | If the selection owner doesn't reply in this time, we give up.\n\ |
ede4db72 | 2408 | A value of 0 means wait as long as necessary. This is initialized from the\n\ |
80da0190 | 2409 | \"*selectionTimeout\" resource."); |
ede4db72 RS |
2410 | x_selection_timeout = 0; |
2411 | ||
2412 | QPRIMARY = intern ("PRIMARY"); staticpro (&QPRIMARY); | |
2413 | QSECONDARY = intern ("SECONDARY"); staticpro (&QSECONDARY); | |
2414 | QSTRING = intern ("STRING"); staticpro (&QSTRING); | |
2415 | QINTEGER = intern ("INTEGER"); staticpro (&QINTEGER); | |
2416 | QCLIPBOARD = intern ("CLIPBOARD"); staticpro (&QCLIPBOARD); | |
2417 | QTIMESTAMP = intern ("TIMESTAMP"); staticpro (&QTIMESTAMP); | |
2418 | QTEXT = intern ("TEXT"); staticpro (&QTEXT); | |
e6c7c988 | 2419 | QCOMPOUND_TEXT = intern ("COMPOUND_TEXT"); staticpro (&QCOMPOUND_TEXT); |
ede4db72 RS |
2420 | QTIMESTAMP = intern ("TIMESTAMP"); staticpro (&QTIMESTAMP); |
2421 | QDELETE = intern ("DELETE"); staticpro (&QDELETE); | |
2422 | QMULTIPLE = intern ("MULTIPLE"); staticpro (&QMULTIPLE); | |
2423 | QINCR = intern ("INCR"); staticpro (&QINCR); | |
2424 | QEMACS_TMP = intern ("_EMACS_TMP_"); staticpro (&QEMACS_TMP); | |
2425 | QTARGETS = intern ("TARGETS"); staticpro (&QTARGETS); | |
2426 | QATOM = intern ("ATOM"); staticpro (&QATOM); | |
2427 | QATOM_PAIR = intern ("ATOM_PAIR"); staticpro (&QATOM_PAIR); | |
2428 | QNULL = intern ("NULL"); staticpro (&QNULL); | |
2429 | ||
2430 | #ifdef CUT_BUFFER_SUPPORT | |
2431 | QCUT_BUFFER0 = intern ("CUT_BUFFER0"); staticpro (&QCUT_BUFFER0); | |
2432 | QCUT_BUFFER1 = intern ("CUT_BUFFER1"); staticpro (&QCUT_BUFFER1); | |
2433 | QCUT_BUFFER2 = intern ("CUT_BUFFER2"); staticpro (&QCUT_BUFFER2); | |
2434 | QCUT_BUFFER3 = intern ("CUT_BUFFER3"); staticpro (&QCUT_BUFFER3); | |
2435 | QCUT_BUFFER4 = intern ("CUT_BUFFER4"); staticpro (&QCUT_BUFFER4); | |
2436 | QCUT_BUFFER5 = intern ("CUT_BUFFER5"); staticpro (&QCUT_BUFFER5); | |
2437 | QCUT_BUFFER6 = intern ("CUT_BUFFER6"); staticpro (&QCUT_BUFFER6); | |
2438 | QCUT_BUFFER7 = intern ("CUT_BUFFER7"); staticpro (&QCUT_BUFFER7); | |
2439 | #endif | |
2440 | ||
2441 | } |