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2408b3a1 | 1 | /* X Selection processing for Emacs. |
a0ecb2ac | 2 | Copyright (C) 1993, 1994, 1995, 1996, 1997, 2000, 2001, 2003, 2004 |
d9c0d4a3 | 3 | Free Software Foundation. |
ede4db72 RS |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
ede4db72 | 21 | |
c6c5df7f | 22 | |
ede4db72 RS |
23 | /* Rewritten by jwz */ |
24 | ||
18160b98 | 25 | #include <config.h> |
5b698285 | 26 | #include <stdio.h> /* termhooks.h needs this */ |
678b3958 KS |
27 | |
28 | #ifdef HAVE_SYS_TYPES_H | |
29 | #include <sys/types.h> | |
30 | #endif | |
31 | #ifdef HAVE_UNISTD_H | |
32 | #include <unistd.h> | |
33 | #endif | |
34 | ||
ede4db72 RS |
35 | #include "lisp.h" |
36 | #include "xterm.h" /* for all of the X includes */ | |
7da64e5c RS |
37 | #include "dispextern.h" /* frame.h seems to want this */ |
38 | #include "frame.h" /* Need this to get the X window of selected_frame */ | |
9ac0d9e0 | 39 | #include "blockinput.h" |
5faa9b45 | 40 | #include "buffer.h" |
dfcf069d | 41 | #include "process.h" |
1fb3821b | 42 | #include "termhooks.h" |
dd0fe424 | 43 | #include "keyboard.h" |
1fb3821b JD |
44 | |
45 | #include <X11/Xproto.h> | |
7da64e5c | 46 | |
d9c0d4a3 GM |
47 | struct prop_location; |
48 | ||
49 | static Lisp_Object x_atom_to_symbol P_ ((Display *dpy, Atom atom)); | |
50 | static Atom symbol_to_x_atom P_ ((struct x_display_info *, Display *, | |
51 | Lisp_Object)); | |
52 | static void x_own_selection P_ ((Lisp_Object, Lisp_Object)); | |
5109c8dd | 53 | static Lisp_Object x_get_local_selection P_ ((Lisp_Object, Lisp_Object, int)); |
d9c0d4a3 GM |
54 | static void x_decline_selection_request P_ ((struct input_event *)); |
55 | static Lisp_Object x_selection_request_lisp_error P_ ((Lisp_Object)); | |
56 | static Lisp_Object queue_selection_requests_unwind P_ ((Lisp_Object)); | |
57 | static Lisp_Object some_frame_on_display P_ ((struct x_display_info *)); | |
58 | static void x_reply_selection_request P_ ((struct input_event *, int, | |
59 | unsigned char *, int, Atom)); | |
60 | static int waiting_for_other_props_on_window P_ ((Display *, Window)); | |
61 | static struct prop_location *expect_property_change P_ ((Display *, Window, | |
62 | Atom, int)); | |
63 | static void unexpect_property_change P_ ((struct prop_location *)); | |
64 | static Lisp_Object wait_for_property_change_unwind P_ ((Lisp_Object)); | |
65 | static void wait_for_property_change P_ ((struct prop_location *)); | |
3a42401d JD |
66 | static Lisp_Object x_get_foreign_selection P_ ((Lisp_Object, |
67 | Lisp_Object, | |
68 | Lisp_Object)); | |
d9c0d4a3 GM |
69 | static void x_get_window_property P_ ((Display *, Window, Atom, |
70 | unsigned char **, int *, | |
71 | Atom *, int *, unsigned long *, int)); | |
72 | static void receive_incremental_selection P_ ((Display *, Window, Atom, | |
73 | Lisp_Object, unsigned, | |
74 | unsigned char **, int *, | |
75 | Atom *, int *, unsigned long *)); | |
76 | static Lisp_Object x_get_window_property_as_lisp_data P_ ((Display *, | |
77 | Window, Atom, | |
78 | Lisp_Object, Atom)); | |
79 | static Lisp_Object selection_data_to_lisp_data P_ ((Display *, unsigned char *, | |
80 | int, Atom, int)); | |
81 | static void lisp_data_to_selection_data P_ ((Display *, Lisp_Object, | |
82 | unsigned char **, Atom *, | |
83 | unsigned *, int *, int *)); | |
84 | static Lisp_Object clean_local_selection_data P_ ((Lisp_Object)); | |
85 | static void initialize_cut_buffers P_ ((Display *, Window)); | |
86 | ||
87 | ||
88 | /* Printing traces to stderr. */ | |
89 | ||
90 | #ifdef TRACE_SELECTION | |
91 | #define TRACE0(fmt) \ | |
92 | fprintf (stderr, "%d: " fmt "\n", getpid ()) | |
93 | #define TRACE1(fmt, a0) \ | |
94 | fprintf (stderr, "%d: " fmt "\n", getpid (), a0) | |
95 | #define TRACE2(fmt, a0, a1) \ | |
96 | fprintf (stderr, "%d: " fmt "\n", getpid (), a0, a1) | |
9c3ad9e1 JD |
97 | #define TRACE3(fmt, a0, a1, a2) \ |
98 | fprintf (stderr, "%d: " fmt "\n", getpid (), a0, a1, a2) | |
d9c0d4a3 GM |
99 | #else |
100 | #define TRACE0(fmt) (void) 0 | |
101 | #define TRACE1(fmt, a0) (void) 0 | |
102 | #define TRACE2(fmt, a0, a1) (void) 0 | |
9c3ad9e1 | 103 | #define TRACE3(fmt, a0, a1) (void) 0 |
d9c0d4a3 GM |
104 | #endif |
105 | ||
106 | ||
ede4db72 RS |
107 | #define CUT_BUFFER_SUPPORT |
108 | ||
ede4db72 RS |
109 | Lisp_Object QPRIMARY, QSECONDARY, QSTRING, QINTEGER, QCLIPBOARD, QTIMESTAMP, |
110 | QTEXT, QDELETE, QMULTIPLE, QINCR, QEMACS_TMP, QTARGETS, QATOM, QNULL, | |
111 | QATOM_PAIR; | |
112 | ||
e6c7c988 | 113 | Lisp_Object QCOMPOUND_TEXT; /* This is a type of selection. */ |
5109c8dd | 114 | Lisp_Object QUTF8_STRING; /* This is a type of selection. */ |
e6c7c988 | 115 | |
5a79ea57 | 116 | Lisp_Object Qcompound_text_with_extensions; |
fbbe0ace | 117 | |
ede4db72 RS |
118 | #ifdef CUT_BUFFER_SUPPORT |
119 | Lisp_Object QCUT_BUFFER0, QCUT_BUFFER1, QCUT_BUFFER2, QCUT_BUFFER3, | |
120 | QCUT_BUFFER4, QCUT_BUFFER5, QCUT_BUFFER6, QCUT_BUFFER7; | |
121 | #endif | |
122 | ||
c917a8de SM |
123 | static Lisp_Object Vx_lost_selection_functions; |
124 | static Lisp_Object Vx_sent_selection_functions; | |
2584c9ec KH |
125 | /* Coding system for communicating with other X clients via cutbuffer, |
126 | selection, and clipboard. */ | |
93e4ce1b | 127 | static Lisp_Object Vselection_coding_system; |
ede4db72 | 128 | |
16cd5029 KH |
129 | /* Coding system for the next communicating with other X clients. */ |
130 | static Lisp_Object Vnext_selection_coding_system; | |
131 | ||
e57ad4d8 KH |
132 | static Lisp_Object Qforeign_selection; |
133 | ||
ede4db72 RS |
134 | /* If this is a smaller number than the max-request-size of the display, |
135 | emacs will use INCR selection transfer when the selection is larger | |
136 | than this. The max-request-size is usually around 64k, so if you want | |
1b65481e | 137 | emacs to use incremental selection transfers when the selection is |
ede4db72 | 138 | smaller than that, set this. I added this mostly for debugging the |
8f4f023f | 139 | incremental transfer stuff, but it might improve server performance. */ |
ede4db72 RS |
140 | #define MAX_SELECTION_QUANTUM 0xFFFFFF |
141 | ||
c3498e64 JB |
142 | #ifdef HAVE_X11R4 |
143 | #define SELECTION_QUANTUM(dpy) ((XMaxRequestSize(dpy) << 2) - 100) | |
144 | #else | |
145 | #define SELECTION_QUANTUM(dpy) (((dpy)->max_request_size << 2) - 100) | |
146 | #endif | |
ede4db72 | 147 | |
7da64e5c | 148 | /* The timestamp of the last input event Emacs received from the X server. */ |
29674445 KH |
149 | /* Defined in keyboard.c. */ |
150 | extern unsigned long last_event_timestamp; | |
ede4db72 RS |
151 | |
152 | /* This is an association list whose elements are of the form | |
118bd841 RS |
153 | ( SELECTION-NAME SELECTION-VALUE SELECTION-TIMESTAMP FRAME) |
154 | SELECTION-NAME is a lisp symbol, whose name is the name of an X Atom. | |
155 | SELECTION-VALUE is the value that emacs owns for that selection. | |
ede4db72 | 156 | It may be any kind of Lisp object. |
118bd841 | 157 | SELECTION-TIMESTAMP is the time at which emacs began owning this selection, |
ede4db72 | 158 | as a cons of two 16-bit numbers (making a 32 bit time.) |
118bd841 RS |
159 | FRAME is the frame for which we made the selection. |
160 | If there is an entry in this alist, then it can be assumed that Emacs owns | |
ede4db72 RS |
161 | that selection. |
162 | The only (eq) parts of this list that are visible from Lisp are the | |
8f4f023f RS |
163 | selection-values. */ |
164 | static Lisp_Object Vselection_alist; | |
ede4db72 RS |
165 | |
166 | /* This is an alist whose CARs are selection-types (whose names are the same | |
167 | as the names of X Atoms) and whose CDRs are the names of Lisp functions to | |
1b65481e | 168 | call to convert the given Emacs selection value to a string representing |
ede4db72 | 169 | the given selection type. This is for Lisp-level extension of the emacs |
8f4f023f RS |
170 | selection handling. */ |
171 | static Lisp_Object Vselection_converter_alist; | |
ede4db72 RS |
172 | |
173 | /* If the selection owner takes too long to reply to a selection request, | |
8f4f023f | 174 | we give up on it. This is in milliseconds (0 = no timeout.) */ |
31ade731 | 175 | static EMACS_INT x_selection_timeout; |
ede4db72 RS |
176 | \f |
177 | /* Utility functions */ | |
178 | ||
179 | static void lisp_data_to_selection_data (); | |
180 | static Lisp_Object selection_data_to_lisp_data (); | |
181 | static Lisp_Object x_get_window_property_as_lisp_data (); | |
182 | ||
dd0fe424 KS |
183 | |
184 | \f | |
678b3958 KS |
185 | /* Define a queue to save up SELECTION_REQUEST_EVENT events for later |
186 | handling. */ | |
dd0fe424 KS |
187 | |
188 | struct selection_event_queue | |
189 | { | |
190 | struct input_event event; | |
191 | struct selection_event_queue *next; | |
192 | }; | |
193 | ||
194 | static struct selection_event_queue *selection_queue; | |
195 | ||
678b3958 | 196 | /* Nonzero means queue up SELECTION_REQUEST_EVENT events. */ |
dd0fe424 KS |
197 | |
198 | static int x_queue_selection_requests; | |
199 | ||
678b3958 | 200 | /* Queue up an SELECTION_REQUEST_EVENT *EVENT, to be processed later. */ |
dd0fe424 KS |
201 | |
202 | static void | |
203 | x_queue_event (event) | |
204 | struct input_event *event; | |
205 | { | |
206 | struct selection_event_queue *queue_tmp; | |
207 | ||
678b3958 KS |
208 | /* Don't queue repeated requests. |
209 | This only happens for large requests which uses the incremental protocol. */ | |
dd0fe424 KS |
210 | for (queue_tmp = selection_queue; queue_tmp; queue_tmp = queue_tmp->next) |
211 | { | |
212 | if (!bcmp (&queue_tmp->event, event, sizeof (*event))) | |
213 | { | |
678b3958 KS |
214 | TRACE1 ("DECLINE DUP SELECTION EVENT %08lx", (unsigned long)queue_tmp); |
215 | x_decline_selection_request (event); | |
dd0fe424 KS |
216 | return; |
217 | } | |
218 | } | |
219 | ||
220 | queue_tmp | |
221 | = (struct selection_event_queue *) xmalloc (sizeof (struct selection_event_queue)); | |
222 | ||
223 | if (queue_tmp != NULL) | |
224 | { | |
678b3958 | 225 | TRACE1 ("QUEUE SELECTION EVENT %08lx", (unsigned long)queue_tmp); |
dd0fe424 KS |
226 | queue_tmp->event = *event; |
227 | queue_tmp->next = selection_queue; | |
228 | selection_queue = queue_tmp; | |
229 | } | |
230 | } | |
231 | ||
678b3958 | 232 | /* Start queuing SELECTION_REQUEST_EVENT events. */ |
dd0fe424 KS |
233 | |
234 | static void | |
235 | x_start_queuing_selection_requests () | |
236 | { | |
237 | if (x_queue_selection_requests) | |
238 | abort (); | |
239 | ||
240 | x_queue_selection_requests++; | |
241 | TRACE1 ("x_start_queuing_selection_requests %d", x_queue_selection_requests); | |
242 | } | |
243 | ||
678b3958 | 244 | /* Stop queuing SELECTION_REQUEST_EVENT events. */ |
dd0fe424 KS |
245 | |
246 | static void | |
247 | x_stop_queuing_selection_requests () | |
248 | { | |
249 | TRACE1 ("x_stop_queuing_selection_requests %d", x_queue_selection_requests); | |
250 | --x_queue_selection_requests; | |
251 | ||
252 | /* Take all the queued events and put them back | |
253 | so that they get processed afresh. */ | |
254 | ||
255 | while (selection_queue != NULL) | |
256 | { | |
257 | struct selection_event_queue *queue_tmp = selection_queue; | |
678b3958 | 258 | TRACE1 ("RESTORE SELECTION EVENT %08lx", (unsigned long)queue_tmp); |
dd0fe424 KS |
259 | kbd_buffer_unget_event (&queue_tmp->event); |
260 | selection_queue = queue_tmp->next; | |
261 | xfree ((char *)queue_tmp); | |
262 | } | |
263 | } | |
264 | \f | |
265 | ||
1b65481e | 266 | /* This converts a Lisp symbol to a server Atom, avoiding a server |
ede4db72 RS |
267 | roundtrip whenever possible. */ |
268 | ||
269 | static Atom | |
5c3a351a RS |
270 | symbol_to_x_atom (dpyinfo, display, sym) |
271 | struct x_display_info *dpyinfo; | |
ede4db72 RS |
272 | Display *display; |
273 | Lisp_Object sym; | |
274 | { | |
275 | Atom val; | |
276 | if (NILP (sym)) return 0; | |
277 | if (EQ (sym, QPRIMARY)) return XA_PRIMARY; | |
278 | if (EQ (sym, QSECONDARY)) return XA_SECONDARY; | |
279 | if (EQ (sym, QSTRING)) return XA_STRING; | |
280 | if (EQ (sym, QINTEGER)) return XA_INTEGER; | |
281 | if (EQ (sym, QATOM)) return XA_ATOM; | |
5c3a351a RS |
282 | if (EQ (sym, QCLIPBOARD)) return dpyinfo->Xatom_CLIPBOARD; |
283 | if (EQ (sym, QTIMESTAMP)) return dpyinfo->Xatom_TIMESTAMP; | |
284 | if (EQ (sym, QTEXT)) return dpyinfo->Xatom_TEXT; | |
e6c7c988 | 285 | if (EQ (sym, QCOMPOUND_TEXT)) return dpyinfo->Xatom_COMPOUND_TEXT; |
5109c8dd | 286 | if (EQ (sym, QUTF8_STRING)) return dpyinfo->Xatom_UTF8_STRING; |
5c3a351a RS |
287 | if (EQ (sym, QDELETE)) return dpyinfo->Xatom_DELETE; |
288 | if (EQ (sym, QMULTIPLE)) return dpyinfo->Xatom_MULTIPLE; | |
289 | if (EQ (sym, QINCR)) return dpyinfo->Xatom_INCR; | |
290 | if (EQ (sym, QEMACS_TMP)) return dpyinfo->Xatom_EMACS_TMP; | |
291 | if (EQ (sym, QTARGETS)) return dpyinfo->Xatom_TARGETS; | |
292 | if (EQ (sym, QNULL)) return dpyinfo->Xatom_NULL; | |
ede4db72 RS |
293 | #ifdef CUT_BUFFER_SUPPORT |
294 | if (EQ (sym, QCUT_BUFFER0)) return XA_CUT_BUFFER0; | |
295 | if (EQ (sym, QCUT_BUFFER1)) return XA_CUT_BUFFER1; | |
296 | if (EQ (sym, QCUT_BUFFER2)) return XA_CUT_BUFFER2; | |
297 | if (EQ (sym, QCUT_BUFFER3)) return XA_CUT_BUFFER3; | |
298 | if (EQ (sym, QCUT_BUFFER4)) return XA_CUT_BUFFER4; | |
299 | if (EQ (sym, QCUT_BUFFER5)) return XA_CUT_BUFFER5; | |
300 | if (EQ (sym, QCUT_BUFFER6)) return XA_CUT_BUFFER6; | |
301 | if (EQ (sym, QCUT_BUFFER7)) return XA_CUT_BUFFER7; | |
302 | #endif | |
303 | if (!SYMBOLP (sym)) abort (); | |
304 | ||
d5db4077 | 305 | TRACE1 (" XInternAtom %s", (char *) SDATA (SYMBOL_NAME (sym))); |
ede4db72 | 306 | BLOCK_INPUT; |
d5db4077 | 307 | val = XInternAtom (display, (char *) SDATA (SYMBOL_NAME (sym)), False); |
ede4db72 RS |
308 | UNBLOCK_INPUT; |
309 | return val; | |
310 | } | |
311 | ||
312 | ||
313 | /* This converts a server Atom to a Lisp symbol, avoiding server roundtrips | |
314 | and calls to intern whenever possible. */ | |
315 | ||
316 | static Lisp_Object | |
d9c0d4a3 GM |
317 | x_atom_to_symbol (dpy, atom) |
318 | Display *dpy; | |
ede4db72 RS |
319 | Atom atom; |
320 | { | |
d9c0d4a3 | 321 | struct x_display_info *dpyinfo; |
ede4db72 RS |
322 | char *str; |
323 | Lisp_Object val; | |
1b65481e | 324 | |
d9c0d4a3 GM |
325 | if (! atom) |
326 | return Qnil; | |
1b65481e | 327 | |
7da64e5c RS |
328 | switch (atom) |
329 | { | |
330 | case XA_PRIMARY: | |
331 | return QPRIMARY; | |
332 | case XA_SECONDARY: | |
333 | return QSECONDARY; | |
334 | case XA_STRING: | |
335 | return QSTRING; | |
336 | case XA_INTEGER: | |
337 | return QINTEGER; | |
338 | case XA_ATOM: | |
339 | return QATOM; | |
ede4db72 | 340 | #ifdef CUT_BUFFER_SUPPORT |
7da64e5c RS |
341 | case XA_CUT_BUFFER0: |
342 | return QCUT_BUFFER0; | |
343 | case XA_CUT_BUFFER1: | |
344 | return QCUT_BUFFER1; | |
345 | case XA_CUT_BUFFER2: | |
346 | return QCUT_BUFFER2; | |
347 | case XA_CUT_BUFFER3: | |
348 | return QCUT_BUFFER3; | |
349 | case XA_CUT_BUFFER4: | |
350 | return QCUT_BUFFER4; | |
351 | case XA_CUT_BUFFER5: | |
352 | return QCUT_BUFFER5; | |
353 | case XA_CUT_BUFFER6: | |
354 | return QCUT_BUFFER6; | |
355 | case XA_CUT_BUFFER7: | |
356 | return QCUT_BUFFER7; | |
ede4db72 | 357 | #endif |
7da64e5c RS |
358 | } |
359 | ||
d9c0d4a3 | 360 | dpyinfo = x_display_info_for_display (dpy); |
5c3a351a | 361 | if (atom == dpyinfo->Xatom_CLIPBOARD) |
7da64e5c | 362 | return QCLIPBOARD; |
5c3a351a | 363 | if (atom == dpyinfo->Xatom_TIMESTAMP) |
7da64e5c | 364 | return QTIMESTAMP; |
5c3a351a | 365 | if (atom == dpyinfo->Xatom_TEXT) |
7da64e5c | 366 | return QTEXT; |
e6c7c988 KH |
367 | if (atom == dpyinfo->Xatom_COMPOUND_TEXT) |
368 | return QCOMPOUND_TEXT; | |
5109c8dd KH |
369 | if (atom == dpyinfo->Xatom_UTF8_STRING) |
370 | return QUTF8_STRING; | |
5c3a351a | 371 | if (atom == dpyinfo->Xatom_DELETE) |
7da64e5c | 372 | return QDELETE; |
5c3a351a | 373 | if (atom == dpyinfo->Xatom_MULTIPLE) |
7da64e5c | 374 | return QMULTIPLE; |
5c3a351a | 375 | if (atom == dpyinfo->Xatom_INCR) |
7da64e5c | 376 | return QINCR; |
5c3a351a | 377 | if (atom == dpyinfo->Xatom_EMACS_TMP) |
7da64e5c | 378 | return QEMACS_TMP; |
5c3a351a | 379 | if (atom == dpyinfo->Xatom_TARGETS) |
7da64e5c | 380 | return QTARGETS; |
5c3a351a | 381 | if (atom == dpyinfo->Xatom_NULL) |
7da64e5c | 382 | return QNULL; |
ede4db72 RS |
383 | |
384 | BLOCK_INPUT; | |
d9c0d4a3 | 385 | str = XGetAtomName (dpy, atom); |
ede4db72 | 386 | UNBLOCK_INPUT; |
d9c0d4a3 | 387 | TRACE1 ("XGetAtomName --> %s", str); |
ede4db72 RS |
388 | if (! str) return Qnil; |
389 | val = intern (str); | |
390 | BLOCK_INPUT; | |
0158abbc | 391 | /* This was allocated by Xlib, so use XFree. */ |
ede4db72 RS |
392 | XFree (str); |
393 | UNBLOCK_INPUT; | |
394 | return val; | |
395 | } | |
8a89415e | 396 | \f |
ede4db72 | 397 | /* Do protocol to assert ourself as a selection owner. |
1b65481e | 398 | Update the Vselection_alist so that we can reply to later requests for |
ede4db72 RS |
399 | our selection. */ |
400 | ||
401 | static void | |
402 | x_own_selection (selection_name, selection_value) | |
403 | Lisp_Object selection_name, selection_value; | |
404 | { | |
378c33ca GM |
405 | struct frame *sf = SELECTED_FRAME (); |
406 | Window selecting_window = FRAME_X_WINDOW (sf); | |
407 | Display *display = FRAME_X_DISPLAY (sf); | |
7da64e5c | 408 | Time time = last_event_timestamp; |
ede4db72 | 409 | Atom selection_atom; |
378c33ca | 410 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (sf); |
5a499696 | 411 | int count; |
ede4db72 | 412 | |
b7826503 | 413 | CHECK_SYMBOL (selection_name); |
5c3a351a | 414 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection_name); |
ede4db72 RS |
415 | |
416 | BLOCK_INPUT; | |
5a499696 | 417 | count = x_catch_errors (display); |
ede4db72 | 418 | XSetSelectionOwner (display, selection_atom, selecting_window, time); |
a7b24d46 | 419 | x_check_errors (display, "Can't set selection: %s"); |
5a499696 | 420 | x_uncatch_errors (display, count); |
ede4db72 RS |
421 | UNBLOCK_INPUT; |
422 | ||
423 | /* Now update the local cache */ | |
424 | { | |
425 | Lisp_Object selection_time; | |
426 | Lisp_Object selection_data; | |
427 | Lisp_Object prev_value; | |
428 | ||
429 | selection_time = long_to_cons ((unsigned long) time); | |
430 | selection_data = Fcons (selection_name, | |
431 | Fcons (selection_value, | |
118bd841 | 432 | Fcons (selection_time, |
378c33ca | 433 | Fcons (selected_frame, Qnil)))); |
ede4db72 RS |
434 | prev_value = assq_no_quit (selection_name, Vselection_alist); |
435 | ||
436 | Vselection_alist = Fcons (selection_data, Vselection_alist); | |
437 | ||
438 | /* If we already owned the selection, remove the old selection data. | |
439 | Perhaps we should destructively modify it instead. | |
440 | Don't use Fdelq as that may QUIT. */ | |
441 | if (!NILP (prev_value)) | |
442 | { | |
443 | Lisp_Object rest; /* we know it's not the CAR, so it's easy. */ | |
444 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) | |
8e713be6 | 445 | if (EQ (prev_value, Fcar (XCDR (rest)))) |
ede4db72 | 446 | { |
f3fbd155 | 447 | XSETCDR (rest, Fcdr (XCDR (rest))); |
ede4db72 RS |
448 | break; |
449 | } | |
450 | } | |
451 | } | |
452 | } | |
453 | \f | |
454 | /* Given a selection-name and desired type, look up our local copy of | |
455 | the selection value and convert it to the type. | |
456 | The value is nil or a string. | |
5109c8dd KH |
457 | This function is used both for remote requests (LOCAL_REQUEST is zero) |
458 | and for local x-get-selection-internal (LOCAL_REQUEST is nonzero). | |
ede4db72 RS |
459 | |
460 | This calls random Lisp code, and may signal or gc. */ | |
461 | ||
462 | static Lisp_Object | |
5109c8dd | 463 | x_get_local_selection (selection_symbol, target_type, local_request) |
ede4db72 | 464 | Lisp_Object selection_symbol, target_type; |
5109c8dd | 465 | int local_request; |
ede4db72 RS |
466 | { |
467 | Lisp_Object local_value; | |
468 | Lisp_Object handler_fn, value, type, check; | |
469 | int count; | |
470 | ||
471 | local_value = assq_no_quit (selection_symbol, Vselection_alist); | |
472 | ||
473 | if (NILP (local_value)) return Qnil; | |
474 | ||
475 | /* TIMESTAMP and MULTIPLE are special cases 'cause that's easiest. */ | |
476 | if (EQ (target_type, QTIMESTAMP)) | |
477 | { | |
478 | handler_fn = Qnil; | |
8e713be6 | 479 | value = XCAR (XCDR (XCDR (local_value))); |
ede4db72 RS |
480 | } |
481 | #if 0 | |
482 | else if (EQ (target_type, QDELETE)) | |
483 | { | |
484 | handler_fn = Qnil; | |
485 | Fx_disown_selection_internal | |
486 | (selection_symbol, | |
8e713be6 | 487 | XCAR (XCDR (XCDR (local_value)))); |
ede4db72 RS |
488 | value = QNULL; |
489 | } | |
490 | #endif | |
491 | ||
492 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
493 | else if (CONSP (target_type) | |
8e713be6 | 494 | && XCAR (target_type) == QMULTIPLE) |
ede4db72 | 495 | { |
9d2d1dd8 KH |
496 | Lisp_Object pairs; |
497 | int size; | |
ede4db72 | 498 | int i; |
8e713be6 | 499 | pairs = XCDR (target_type); |
9d2d1dd8 | 500 | size = XVECTOR (pairs)->size; |
ede4db72 RS |
501 | /* If the target is MULTIPLE, then target_type looks like |
502 | (MULTIPLE . [[SELECTION1 TARGET1] [SELECTION2 TARGET2] ... ]) | |
503 | We modify the second element of each pair in the vector and | |
504 | return it as [[SELECTION1 <value1>] [SELECTION2 <value2>] ... ] | |
505 | */ | |
506 | for (i = 0; i < size; i++) | |
507 | { | |
9d2d1dd8 KH |
508 | Lisp_Object pair; |
509 | pair = XVECTOR (pairs)->contents [i]; | |
ede4db72 RS |
510 | XVECTOR (pair)->contents [1] |
511 | = x_get_local_selection (XVECTOR (pair)->contents [0], | |
5109c8dd KH |
512 | XVECTOR (pair)->contents [1], |
513 | local_request); | |
ede4db72 RS |
514 | } |
515 | return pairs; | |
516 | } | |
517 | #endif | |
518 | else | |
519 | { | |
520 | /* Don't allow a quit within the converter. | |
521 | When the user types C-g, he would be surprised | |
522 | if by luck it came during a converter. */ | |
aed13378 | 523 | count = SPECPDL_INDEX (); |
ede4db72 RS |
524 | specbind (Qinhibit_quit, Qt); |
525 | ||
b7826503 | 526 | CHECK_SYMBOL (target_type); |
ede4db72 | 527 | handler_fn = Fcdr (Fassq (target_type, Vselection_converter_alist)); |
4f06187f RS |
528 | /* gcpro is not needed here since nothing but HANDLER_FN |
529 | is live, and that ought to be a symbol. */ | |
530 | ||
1eb4d468 RS |
531 | if (!NILP (handler_fn)) |
532 | value = call3 (handler_fn, | |
5109c8dd | 533 | selection_symbol, (local_request ? Qnil : target_type), |
8e713be6 | 534 | XCAR (XCDR (local_value))); |
1eb4d468 RS |
535 | else |
536 | value = Qnil; | |
ede4db72 RS |
537 | unbind_to (count, Qnil); |
538 | } | |
539 | ||
540 | /* Make sure this value is of a type that we could transmit | |
541 | to another X client. */ | |
a87ed99c | 542 | |
ede4db72 RS |
543 | check = value; |
544 | if (CONSP (value) | |
8e713be6 KR |
545 | && SYMBOLP (XCAR (value))) |
546 | type = XCAR (value), | |
547 | check = XCDR (value); | |
1b65481e | 548 | |
ede4db72 RS |
549 | if (STRINGP (check) |
550 | || VECTORP (check) | |
551 | || SYMBOLP (check) | |
7da64e5c | 552 | || INTEGERP (check) |
ede4db72 RS |
553 | || NILP (value)) |
554 | return value; | |
a87ed99c | 555 | /* Check for a value that cons_to_long could handle. */ |
ede4db72 | 556 | else if (CONSP (check) |
8e713be6 KR |
557 | && INTEGERP (XCAR (check)) |
558 | && (INTEGERP (XCDR (check)) | |
ede4db72 | 559 | || |
8e713be6 KR |
560 | (CONSP (XCDR (check)) |
561 | && INTEGERP (XCAR (XCDR (check))) | |
562 | && NILP (XCDR (XCDR (check)))))) | |
ede4db72 RS |
563 | return value; |
564 | else | |
565 | return | |
566 | Fsignal (Qerror, | |
a87ed99c | 567 | Fcons (build_string ("invalid data returned by selection-conversion function"), |
ede4db72 RS |
568 | Fcons (handler_fn, Fcons (value, Qnil)))); |
569 | } | |
570 | \f | |
571 | /* Subroutines of x_reply_selection_request. */ | |
572 | ||
5d0ba25b | 573 | /* Send a SelectionNotify event to the requestor with property=None, |
ede4db72 RS |
574 | meaning we were unable to do what they wanted. */ |
575 | ||
576 | static void | |
577 | x_decline_selection_request (event) | |
578 | struct input_event *event; | |
579 | { | |
580 | XSelectionEvent reply; | |
d9c0d4a3 | 581 | int count; |
1b65481e | 582 | |
ede4db72 RS |
583 | reply.type = SelectionNotify; |
584 | reply.display = SELECTION_EVENT_DISPLAY (event); | |
5d0ba25b | 585 | reply.requestor = SELECTION_EVENT_REQUESTOR (event); |
ede4db72 RS |
586 | reply.selection = SELECTION_EVENT_SELECTION (event); |
587 | reply.time = SELECTION_EVENT_TIME (event); | |
588 | reply.target = SELECTION_EVENT_TARGET (event); | |
589 | reply.property = None; | |
590 | ||
d9c0d4a3 GM |
591 | /* The reason for the error may be that the receiver has |
592 | died in the meantime. Handle that case. */ | |
ede4db72 | 593 | BLOCK_INPUT; |
d9c0d4a3 GM |
594 | count = x_catch_errors (reply.display); |
595 | XSendEvent (reply.display, reply.requestor, False, 0L, (XEvent *) &reply); | |
5c3a351a | 596 | XFlush (reply.display); |
d9c0d4a3 | 597 | x_uncatch_errors (reply.display, count); |
ede4db72 RS |
598 | UNBLOCK_INPUT; |
599 | } | |
600 | ||
601 | /* This is the selection request currently being processed. | |
602 | It is set to zero when the request is fully processed. */ | |
603 | static struct input_event *x_selection_current_request; | |
604 | ||
ca29f2b8 GM |
605 | /* Display info in x_selection_request. */ |
606 | ||
607 | static struct x_display_info *selection_request_dpyinfo; | |
608 | ||
ede4db72 | 609 | /* Used as an unwind-protect clause so that, if a selection-converter signals |
2a1a4c9d | 610 | an error, we tell the requester that we were unable to do what they wanted |
ede4db72 RS |
611 | before we throw to top-level or go into the debugger or whatever. */ |
612 | ||
613 | static Lisp_Object | |
614 | x_selection_request_lisp_error (ignore) | |
615 | Lisp_Object ignore; | |
616 | { | |
ca29f2b8 GM |
617 | if (x_selection_current_request != 0 |
618 | && selection_request_dpyinfo->display) | |
ede4db72 RS |
619 | x_decline_selection_request (x_selection_current_request); |
620 | return Qnil; | |
621 | } | |
622 | \f | |
d1f21a66 RS |
623 | |
624 | /* This stuff is so that INCR selections are reentrant (that is, so we can | |
625 | be servicing multiple INCR selection requests simultaneously.) I haven't | |
626 | actually tested that yet. */ | |
627 | ||
628 | /* Keep a list of the property changes that are awaited. */ | |
629 | ||
630 | struct prop_location | |
631 | { | |
632 | int identifier; | |
633 | Display *display; | |
634 | Window window; | |
635 | Atom property; | |
636 | int desired_state; | |
637 | int arrived; | |
638 | struct prop_location *next; | |
639 | }; | |
640 | ||
641 | static struct prop_location *expect_property_change (); | |
642 | static void wait_for_property_change (); | |
643 | static void unexpect_property_change (); | |
644 | static int waiting_for_other_props_on_window (); | |
645 | ||
646 | static int prop_location_identifier; | |
647 | ||
648 | static Lisp_Object property_change_reply; | |
649 | ||
650 | static struct prop_location *property_change_reply_object; | |
651 | ||
652 | static struct prop_location *property_change_wait_list; | |
55b2d45d RS |
653 | |
654 | static Lisp_Object | |
dd0fe424 KS |
655 | queue_selection_requests_unwind (tem) |
656 | Lisp_Object tem; | |
55b2d45d | 657 | { |
dd0fe424 | 658 | x_stop_queuing_selection_requests (); |
ab552306 | 659 | return Qnil; |
55b2d45d RS |
660 | } |
661 | ||
662 | /* Return some frame whose display info is DPYINFO. | |
663 | Return nil if there is none. */ | |
664 | ||
665 | static Lisp_Object | |
666 | some_frame_on_display (dpyinfo) | |
667 | struct x_display_info *dpyinfo; | |
668 | { | |
669 | Lisp_Object list, frame; | |
670 | ||
671 | FOR_EACH_FRAME (list, frame) | |
672 | { | |
673 | if (FRAME_X_DISPLAY_INFO (XFRAME (frame)) == dpyinfo) | |
674 | return frame; | |
675 | } | |
676 | ||
677 | return Qnil; | |
678 | } | |
d1f21a66 | 679 | \f |
ede4db72 RS |
680 | /* Send the reply to a selection request event EVENT. |
681 | TYPE is the type of selection data requested. | |
682 | DATA and SIZE describe the data to send, already converted. | |
683 | FORMAT is the unit-size (in bits) of the data to be transmitted. */ | |
684 | ||
685 | static void | |
686 | x_reply_selection_request (event, format, data, size, type) | |
687 | struct input_event *event; | |
688 | int format, size; | |
689 | unsigned char *data; | |
690 | Atom type; | |
691 | { | |
692 | XSelectionEvent reply; | |
693 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
5d0ba25b | 694 | Window window = SELECTION_EVENT_REQUESTOR (event); |
ede4db72 RS |
695 | int bytes_remaining; |
696 | int format_bytes = format/8; | |
697 | int max_bytes = SELECTION_QUANTUM (display); | |
5c3a351a | 698 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
5a499696 | 699 | int count; |
ede4db72 RS |
700 | |
701 | if (max_bytes > MAX_SELECTION_QUANTUM) | |
702 | max_bytes = MAX_SELECTION_QUANTUM; | |
703 | ||
704 | reply.type = SelectionNotify; | |
705 | reply.display = display; | |
5d0ba25b | 706 | reply.requestor = window; |
ede4db72 RS |
707 | reply.selection = SELECTION_EVENT_SELECTION (event); |
708 | reply.time = SELECTION_EVENT_TIME (event); | |
709 | reply.target = SELECTION_EVENT_TARGET (event); | |
710 | reply.property = SELECTION_EVENT_PROPERTY (event); | |
711 | if (reply.property == None) | |
712 | reply.property = reply.target; | |
713 | ||
714 | /* #### XChangeProperty can generate BadAlloc, and we must handle it! */ | |
afe1529d | 715 | BLOCK_INPUT; |
ad7f9d12 | 716 | count = x_catch_errors (display); |
ede4db72 | 717 | |
9c3ad9e1 JD |
718 | #ifdef TRACE_SELECTION |
719 | { | |
720 | static int cnt; | |
721 | char *sel = XGetAtomName (display, reply.selection); | |
722 | char *tgt = XGetAtomName (display, reply.target); | |
723 | TRACE3 ("%s, target %s (%d)", sel, tgt, ++cnt); | |
724 | if (sel) XFree (sel); | |
725 | if (tgt) XFree (tgt); | |
726 | } | |
727 | #endif /* TRACE_SELECTION */ | |
728 | ||
ede4db72 RS |
729 | /* Store the data on the requested property. |
730 | If the selection is large, only store the first N bytes of it. | |
731 | */ | |
732 | bytes_remaining = size * format_bytes; | |
733 | if (bytes_remaining <= max_bytes) | |
734 | { | |
735 | /* Send all the data at once, with minimal handshaking. */ | |
d9c0d4a3 | 736 | TRACE1 ("Sending all %d bytes", bytes_remaining); |
ede4db72 RS |
737 | XChangeProperty (display, window, reply.property, type, format, |
738 | PropModeReplace, data, size); | |
739 | /* At this point, the selection was successfully stored; ack it. */ | |
2f65feb6 | 740 | XSendEvent (display, window, False, 0L, (XEvent *) &reply); |
ede4db72 RS |
741 | } |
742 | else | |
743 | { | |
744 | /* Send an INCR selection. */ | |
d1f21a66 | 745 | struct prop_location *wait_object; |
afe1529d | 746 | int had_errors; |
55b2d45d | 747 | Lisp_Object frame; |
ede4db72 | 748 | |
55b2d45d RS |
749 | frame = some_frame_on_display (dpyinfo); |
750 | ||
751 | /* If the display no longer has frames, we can't expect | |
752 | to get many more selection requests from it, so don't | |
753 | bother trying to queue them. */ | |
754 | if (!NILP (frame)) | |
755 | { | |
dd0fe424 | 756 | x_start_queuing_selection_requests (); |
55b2d45d RS |
757 | |
758 | record_unwind_protect (queue_selection_requests_unwind, | |
dd0fe424 | 759 | Qnil); |
55b2d45d | 760 | } |
2f65feb6 | 761 | |
19126e11 | 762 | if (x_window_to_frame (dpyinfo, window)) /* #### debug */ |
606140dd | 763 | error ("Attempt to transfer an INCR to ourself!"); |
1b65481e | 764 | |
d9c0d4a3 GM |
765 | TRACE2 ("Start sending %d bytes incrementally (%s)", |
766 | bytes_remaining, XGetAtomName (display, reply.property)); | |
d1f21a66 RS |
767 | wait_object = expect_property_change (display, window, reply.property, |
768 | PropertyDelete); | |
ede4db72 | 769 | |
d9c0d4a3 GM |
770 | TRACE1 ("Set %s to number of bytes to send", |
771 | XGetAtomName (display, reply.property)); | |
5c3a351a | 772 | XChangeProperty (display, window, reply.property, dpyinfo->Xatom_INCR, |
55b2d45d RS |
773 | 32, PropModeReplace, |
774 | (unsigned char *) &bytes_remaining, 1); | |
ede4db72 | 775 | XSelectInput (display, window, PropertyChangeMask); |
1b65481e | 776 | |
ede4db72 | 777 | /* Tell 'em the INCR data is there... */ |
d9c0d4a3 | 778 | TRACE0 ("Send SelectionNotify event"); |
55b2d45d | 779 | XSendEvent (display, window, False, 0L, (XEvent *) &reply); |
5c3a351a | 780 | XFlush (display); |
afe1529d RS |
781 | |
782 | had_errors = x_had_errors_p (display); | |
2f65feb6 | 783 | UNBLOCK_INPUT; |
ede4db72 | 784 | |
2a1a4c9d | 785 | /* First, wait for the requester to ack by deleting the property. |
ede4db72 | 786 | This can run random lisp code (process handlers) or signal. */ |
afe1529d | 787 | if (! had_errors) |
d9c0d4a3 GM |
788 | { |
789 | TRACE1 ("Waiting for ACK (deletion of %s)", | |
790 | XGetAtomName (display, reply.property)); | |
791 | wait_for_property_change (wait_object); | |
792 | } | |
dd0fe424 KS |
793 | else |
794 | unexpect_property_change (wait_object); | |
ede4db72 | 795 | |
d9c0d4a3 | 796 | TRACE0 ("Got ACK"); |
ede4db72 RS |
797 | while (bytes_remaining) |
798 | { | |
799 | int i = ((bytes_remaining < max_bytes) | |
800 | ? bytes_remaining | |
801 | : max_bytes); | |
2f65feb6 RS |
802 | |
803 | BLOCK_INPUT; | |
804 | ||
d1f21a66 RS |
805 | wait_object |
806 | = expect_property_change (display, window, reply.property, | |
807 | PropertyDelete); | |
d9c0d4a3 GM |
808 | |
809 | TRACE1 ("Sending increment of %d bytes", i); | |
810 | TRACE1 ("Set %s to increment data", | |
811 | XGetAtomName (display, reply.property)); | |
1b65481e | 812 | |
ede4db72 RS |
813 | /* Append the next chunk of data to the property. */ |
814 | XChangeProperty (display, window, reply.property, type, format, | |
815 | PropModeAppend, data, i / format_bytes); | |
816 | bytes_remaining -= i; | |
817 | data += i; | |
5c3a351a | 818 | XFlush (display); |
afe1529d | 819 | had_errors = x_had_errors_p (display); |
2f65feb6 | 820 | UNBLOCK_INPUT; |
ede4db72 | 821 | |
afe1529d RS |
822 | if (had_errors) |
823 | break; | |
824 | ||
2a1a4c9d | 825 | /* Now wait for the requester to ack this chunk by deleting the |
d9c0d4a3 GM |
826 | property. This can run random lisp code or signal. */ |
827 | TRACE1 ("Waiting for increment ACK (deletion of %s)", | |
828 | XGetAtomName (display, reply.property)); | |
d1f21a66 | 829 | wait_for_property_change (wait_object); |
ede4db72 | 830 | } |
1b65481e | 831 | |
d9c0d4a3 GM |
832 | /* Now write a zero-length chunk to the property to tell the |
833 | requester that we're done. */ | |
2f65feb6 | 834 | BLOCK_INPUT; |
ede4db72 RS |
835 | if (! waiting_for_other_props_on_window (display, window)) |
836 | XSelectInput (display, window, 0L); | |
837 | ||
d9c0d4a3 GM |
838 | TRACE1 ("Set %s to a 0-length chunk to indicate EOF", |
839 | XGetAtomName (display, reply.property)); | |
ede4db72 RS |
840 | XChangeProperty (display, window, reply.property, type, format, |
841 | PropModeReplace, data, 0); | |
d9c0d4a3 | 842 | TRACE0 ("Done sending incrementally"); |
ede4db72 | 843 | } |
afe1529d | 844 | |
ceabd272 | 845 | /* rms, 2003-01-03: I think I have fixed this bug. */ |
47a6ac17 GM |
846 | /* The window we're communicating with may have been deleted |
847 | in the meantime (that's a real situation from a bug report). | |
848 | In this case, there may be events in the event queue still | |
849 | refering to the deleted window, and we'll get a BadWindow error | |
850 | in XTread_socket when processing the events. I don't have | |
851 | an idea how to fix that. gerd, 2001-01-98. */ | |
844fc085 JD |
852 | /* 2004-09-10: XSync and UNBLOCK so that possible protocol errors are |
853 | delivered before uncatch errors. */ | |
854 | XSync (display, False); | |
afe1529d | 855 | UNBLOCK_INPUT; |
0608b1a0 JD |
856 | |
857 | /* GTK queues events in addition to the queue in Xlib. So we | |
858 | UNBLOCK to enter the event loop and get possible errors delivered, | |
859 | and then BLOCK again because x_uncatch_errors requires it. */ | |
860 | BLOCK_INPUT; | |
844fc085 | 861 | x_uncatch_errors (display, count); |
0608b1a0 | 862 | UNBLOCK_INPUT; |
ede4db72 RS |
863 | } |
864 | \f | |
865 | /* Handle a SelectionRequest event EVENT. | |
866 | This is called from keyboard.c when such an event is found in the queue. */ | |
867 | ||
dd0fe424 | 868 | static void |
ede4db72 RS |
869 | x_handle_selection_request (event) |
870 | struct input_event *event; | |
871 | { | |
872 | struct gcpro gcpro1, gcpro2, gcpro3; | |
9d2d1dd8 | 873 | Lisp_Object local_selection_data; |
ede4db72 | 874 | Lisp_Object selection_symbol; |
9d2d1dd8 KH |
875 | Lisp_Object target_symbol; |
876 | Lisp_Object converted_selection; | |
ede4db72 | 877 | Time local_selection_time; |
9d2d1dd8 | 878 | Lisp_Object successful_p; |
ede4db72 | 879 | int count; |
5c3a351a RS |
880 | struct x_display_info *dpyinfo |
881 | = x_display_info_for_display (SELECTION_EVENT_DISPLAY (event)); | |
ede4db72 | 882 | |
678b3958 KS |
883 | TRACE2 ("x_handle_selection_request, from=0x%08lx time=%lu", |
884 | (unsigned long) SELECTION_EVENT_REQUESTOR (event), | |
885 | (unsigned long) SELECTION_EVENT_TIME (event)); | |
dd0fe424 | 886 | |
9d2d1dd8 KH |
887 | local_selection_data = Qnil; |
888 | target_symbol = Qnil; | |
889 | converted_selection = Qnil; | |
890 | successful_p = Qnil; | |
891 | ||
ede4db72 RS |
892 | GCPRO3 (local_selection_data, converted_selection, target_symbol); |
893 | ||
d9c0d4a3 | 894 | selection_symbol = x_atom_to_symbol (SELECTION_EVENT_DISPLAY (event), |
ede4db72 RS |
895 | SELECTION_EVENT_SELECTION (event)); |
896 | ||
897 | local_selection_data = assq_no_quit (selection_symbol, Vselection_alist); | |
ede4db72 RS |
898 | |
899 | if (NILP (local_selection_data)) | |
900 | { | |
901 | /* Someone asked for the selection, but we don't have it any more. | |
902 | */ | |
903 | x_decline_selection_request (event); | |
904 | goto DONE; | |
905 | } | |
906 | ||
907 | local_selection_time = (Time) | |
8e713be6 | 908 | cons_to_long (XCAR (XCDR (XCDR (local_selection_data)))); |
ede4db72 RS |
909 | |
910 | if (SELECTION_EVENT_TIME (event) != CurrentTime | |
7da64e5c | 911 | && local_selection_time > SELECTION_EVENT_TIME (event)) |
ede4db72 RS |
912 | { |
913 | /* Someone asked for the selection, and we have one, but not the one | |
914 | they're looking for. | |
915 | */ | |
916 | x_decline_selection_request (event); | |
917 | goto DONE; | |
918 | } | |
919 | ||
ede4db72 | 920 | x_selection_current_request = event; |
331379bf | 921 | count = SPECPDL_INDEX (); |
ca29f2b8 | 922 | selection_request_dpyinfo = dpyinfo; |
ede4db72 RS |
923 | record_unwind_protect (x_selection_request_lisp_error, Qnil); |
924 | ||
d9c0d4a3 | 925 | target_symbol = x_atom_to_symbol (SELECTION_EVENT_DISPLAY (event), |
ede4db72 RS |
926 | SELECTION_EVENT_TARGET (event)); |
927 | ||
928 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
929 | if (EQ (target_symbol, QMULTIPLE)) | |
930 | target_symbol = fetch_multiple_target (event); | |
931 | #endif | |
1b65481e | 932 | |
ede4db72 | 933 | /* Convert lisp objects back into binary data */ |
1b65481e | 934 | |
ede4db72 | 935 | converted_selection |
5109c8dd | 936 | = x_get_local_selection (selection_symbol, target_symbol, 0); |
1b65481e | 937 | |
ede4db72 RS |
938 | if (! NILP (converted_selection)) |
939 | { | |
940 | unsigned char *data; | |
941 | unsigned int size; | |
942 | int format; | |
943 | Atom type; | |
aca39f42 RS |
944 | int nofree; |
945 | ||
2f65feb6 RS |
946 | lisp_data_to_selection_data (SELECTION_EVENT_DISPLAY (event), |
947 | converted_selection, | |
aca39f42 | 948 | &data, &type, &size, &format, &nofree); |
1b65481e | 949 | |
ede4db72 RS |
950 | x_reply_selection_request (event, format, data, size, type); |
951 | successful_p = Qt; | |
952 | ||
953 | /* Indicate we have successfully processed this event. */ | |
7da64e5c | 954 | x_selection_current_request = 0; |
ede4db72 | 955 | |
4feb31b2 | 956 | /* Use xfree, not XFree, because lisp_data_to_selection_data |
0158abbc | 957 | calls xmalloc itself. */ |
aca39f42 | 958 | if (!nofree) |
4feb31b2 | 959 | xfree (data); |
ede4db72 RS |
960 | } |
961 | unbind_to (count, Qnil); | |
962 | ||
963 | DONE: | |
964 | ||
ede4db72 RS |
965 | /* Let random lisp code notice that the selection has been asked for. */ |
966 | { | |
9d2d1dd8 | 967 | Lisp_Object rest; |
c917a8de | 968 | rest = Vx_sent_selection_functions; |
ede4db72 RS |
969 | if (!EQ (rest, Qunbound)) |
970 | for (; CONSP (rest); rest = Fcdr (rest)) | |
971 | call3 (Fcar (rest), selection_symbol, target_symbol, successful_p); | |
972 | } | |
4f06187f RS |
973 | |
974 | UNGCPRO; | |
ede4db72 RS |
975 | } |
976 | \f | |
e18e6130 | 977 | /* Handle a SelectionClear event EVENT, which indicates that some |
ede4db72 RS |
978 | client cleared out our previously asserted selection. |
979 | This is called from keyboard.c when such an event is found in the queue. */ | |
980 | ||
dd0fe424 | 981 | static void |
ede4db72 RS |
982 | x_handle_selection_clear (event) |
983 | struct input_event *event; | |
984 | { | |
985 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
986 | Atom selection = SELECTION_EVENT_SELECTION (event); | |
987 | Time changed_owner_time = SELECTION_EVENT_TIME (event); | |
1b65481e | 988 | |
ede4db72 RS |
989 | Lisp_Object selection_symbol, local_selection_data; |
990 | Time local_selection_time; | |
5c3a351a | 991 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
e18e6130 RS |
992 | struct x_display_info *t_dpyinfo; |
993 | ||
dd0fe424 KS |
994 | TRACE0 ("x_handle_selection_clear"); |
995 | ||
e18e6130 RS |
996 | /* If the new selection owner is also Emacs, |
997 | don't clear the new selection. */ | |
998 | BLOCK_INPUT; | |
999 | /* Check each display on the same terminal, | |
1000 | to see if this Emacs job now owns the selection | |
1001 | through that display. */ | |
1002 | for (t_dpyinfo = x_display_list; t_dpyinfo; t_dpyinfo = t_dpyinfo->next) | |
1003 | if (t_dpyinfo->kboard == dpyinfo->kboard) | |
1004 | { | |
1005 | Window owner_window | |
1006 | = XGetSelectionOwner (t_dpyinfo->display, selection); | |
1007 | if (x_window_to_frame (t_dpyinfo, owner_window) != 0) | |
1008 | { | |
1009 | UNBLOCK_INPUT; | |
1010 | return; | |
1011 | } | |
1012 | } | |
1013 | UNBLOCK_INPUT; | |
ede4db72 | 1014 | |
d9c0d4a3 | 1015 | selection_symbol = x_atom_to_symbol (display, selection); |
ede4db72 RS |
1016 | |
1017 | local_selection_data = assq_no_quit (selection_symbol, Vselection_alist); | |
1018 | ||
1019 | /* Well, we already believe that we don't own it, so that's just fine. */ | |
1020 | if (NILP (local_selection_data)) return; | |
1021 | ||
1022 | local_selection_time = (Time) | |
8e713be6 | 1023 | cons_to_long (XCAR (XCDR (XCDR (local_selection_data)))); |
ede4db72 RS |
1024 | |
1025 | /* This SelectionClear is for a selection that we no longer own, so we can | |
1026 | disregard it. (That is, we have reasserted the selection since this | |
1027 | request was generated.) */ | |
1028 | ||
1029 | if (changed_owner_time != CurrentTime | |
1030 | && local_selection_time > changed_owner_time) | |
1031 | return; | |
1032 | ||
1033 | /* Otherwise, we're really honest and truly being told to drop it. | |
1034 | Don't use Fdelq as that may QUIT;. */ | |
1035 | ||
1036 | if (EQ (local_selection_data, Fcar (Vselection_alist))) | |
1037 | Vselection_alist = Fcdr (Vselection_alist); | |
1038 | else | |
1039 | { | |
1040 | Lisp_Object rest; | |
1041 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) | |
8e713be6 | 1042 | if (EQ (local_selection_data, Fcar (XCDR (rest)))) |
ede4db72 | 1043 | { |
f3fbd155 | 1044 | XSETCDR (rest, Fcdr (XCDR (rest))); |
ede4db72 RS |
1045 | break; |
1046 | } | |
1047 | } | |
1048 | ||
1049 | /* Let random lisp code notice that the selection has been stolen. */ | |
1050 | ||
1051 | { | |
d1f21a66 | 1052 | Lisp_Object rest; |
c917a8de | 1053 | rest = Vx_lost_selection_functions; |
ede4db72 | 1054 | if (!EQ (rest, Qunbound)) |
d1f21a66 RS |
1055 | { |
1056 | for (; CONSP (rest); rest = Fcdr (rest)) | |
1057 | call1 (Fcar (rest), selection_symbol); | |
7c6b2ea4 | 1058 | prepare_menu_bars (); |
3007ebfb | 1059 | redisplay_preserve_echo_area (20); |
d1f21a66 | 1060 | } |
ede4db72 RS |
1061 | } |
1062 | } | |
1063 | ||
dd0fe424 KS |
1064 | void |
1065 | x_handle_selection_event (event) | |
1066 | struct input_event *event; | |
1067 | { | |
1068 | TRACE0 ("x_handle_selection_event"); | |
1069 | ||
1070 | if (event->kind == SELECTION_REQUEST_EVENT) | |
1071 | { | |
1072 | if (x_queue_selection_requests) | |
1073 | x_queue_event (event); | |
1074 | else | |
1075 | x_handle_selection_request (event); | |
1076 | } | |
1077 | else | |
1078 | x_handle_selection_clear (event); | |
1079 | } | |
1080 | ||
1081 | ||
118bd841 RS |
1082 | /* Clear all selections that were made from frame F. |
1083 | We do this when about to delete a frame. */ | |
1084 | ||
1085 | void | |
1086 | x_clear_frame_selections (f) | |
1087 | FRAME_PTR f; | |
1088 | { | |
1089 | Lisp_Object frame; | |
1090 | Lisp_Object rest; | |
1091 | ||
90851bbe | 1092 | XSETFRAME (frame, f); |
118bd841 RS |
1093 | |
1094 | /* Otherwise, we're really honest and truly being told to drop it. | |
1095 | Don't use Fdelq as that may QUIT;. */ | |
1096 | ||
0d199f9c RS |
1097 | /* Delete elements from the beginning of Vselection_alist. */ |
1098 | while (!NILP (Vselection_alist) | |
1099 | && EQ (frame, Fcar (Fcdr (Fcdr (Fcdr (Fcar (Vselection_alist))))))) | |
1100 | { | |
1101 | /* Let random Lisp code notice that the selection has been stolen. */ | |
1102 | Lisp_Object hooks, selection_symbol; | |
1103 | ||
c917a8de | 1104 | hooks = Vx_lost_selection_functions; |
0d199f9c RS |
1105 | selection_symbol = Fcar (Fcar (Vselection_alist)); |
1106 | ||
1107 | if (!EQ (hooks, Qunbound)) | |
1108 | { | |
1109 | for (; CONSP (hooks); hooks = Fcdr (hooks)) | |
1110 | call1 (Fcar (hooks), selection_symbol); | |
996b804d MB |
1111 | #if 0 /* This can crash when deleting a frame |
1112 | from x_connection_closed. Anyway, it seems unnecessary; | |
1113 | something else should cause a redisplay. */ | |
3007ebfb | 1114 | redisplay_preserve_echo_area (21); |
996b804d | 1115 | #endif |
0d199f9c RS |
1116 | } |
1117 | ||
1118 | Vselection_alist = Fcdr (Vselection_alist); | |
1119 | } | |
1120 | ||
1121 | /* Delete elements after the beginning of Vselection_alist. */ | |
118bd841 | 1122 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) |
8e713be6 | 1123 | if (EQ (frame, Fcar (Fcdr (Fcdr (Fcdr (Fcar (XCDR (rest)))))))) |
118bd841 RS |
1124 | { |
1125 | /* Let random Lisp code notice that the selection has been stolen. */ | |
1126 | Lisp_Object hooks, selection_symbol; | |
1127 | ||
c917a8de | 1128 | hooks = Vx_lost_selection_functions; |
8e713be6 | 1129 | selection_symbol = Fcar (Fcar (XCDR (rest))); |
118bd841 RS |
1130 | |
1131 | if (!EQ (hooks, Qunbound)) | |
1132 | { | |
1133 | for (; CONSP (hooks); hooks = Fcdr (hooks)) | |
1134 | call1 (Fcar (hooks), selection_symbol); | |
996b804d | 1135 | #if 0 /* See above */ |
3007ebfb | 1136 | redisplay_preserve_echo_area (22); |
996b804d | 1137 | #endif |
118bd841 | 1138 | } |
f3fbd155 | 1139 | XSETCDR (rest, Fcdr (XCDR (rest))); |
118bd841 RS |
1140 | break; |
1141 | } | |
1142 | } | |
ede4db72 | 1143 | \f |
ede4db72 RS |
1144 | /* Nonzero if any properties for DISPLAY and WINDOW |
1145 | are on the list of what we are waiting for. */ | |
1146 | ||
1147 | static int | |
1148 | waiting_for_other_props_on_window (display, window) | |
1149 | Display *display; | |
1150 | Window window; | |
1151 | { | |
1152 | struct prop_location *rest = property_change_wait_list; | |
1153 | while (rest) | |
1154 | if (rest->display == display && rest->window == window) | |
1155 | return 1; | |
1156 | else | |
1157 | rest = rest->next; | |
1158 | return 0; | |
1159 | } | |
1160 | ||
1161 | /* Add an entry to the list of property changes we are waiting for. | |
1162 | DISPLAY, WINDOW, PROPERTY, STATE describe what we will wait for. | |
1163 | The return value is a number that uniquely identifies | |
1164 | this awaited property change. */ | |
1165 | ||
d1f21a66 | 1166 | static struct prop_location * |
ede4db72 RS |
1167 | expect_property_change (display, window, property, state) |
1168 | Display *display; | |
1169 | Window window; | |
6c070502 | 1170 | Atom property; |
ede4db72 RS |
1171 | int state; |
1172 | { | |
d9c0d4a3 | 1173 | struct prop_location *pl = (struct prop_location *) xmalloc (sizeof *pl); |
2f65feb6 | 1174 | pl->identifier = ++prop_location_identifier; |
ede4db72 RS |
1175 | pl->display = display; |
1176 | pl->window = window; | |
1177 | pl->property = property; | |
1178 | pl->desired_state = state; | |
1179 | pl->next = property_change_wait_list; | |
d1f21a66 | 1180 | pl->arrived = 0; |
ede4db72 | 1181 | property_change_wait_list = pl; |
d1f21a66 | 1182 | return pl; |
ede4db72 RS |
1183 | } |
1184 | ||
1185 | /* Delete an entry from the list of property changes we are waiting for. | |
2f65feb6 | 1186 | IDENTIFIER is the number that uniquely identifies the entry. */ |
ede4db72 RS |
1187 | |
1188 | static void | |
d1f21a66 RS |
1189 | unexpect_property_change (location) |
1190 | struct prop_location *location; | |
ede4db72 RS |
1191 | { |
1192 | struct prop_location *prev = 0, *rest = property_change_wait_list; | |
1193 | while (rest) | |
1194 | { | |
d1f21a66 | 1195 | if (rest == location) |
ede4db72 RS |
1196 | { |
1197 | if (prev) | |
1198 | prev->next = rest->next; | |
1199 | else | |
1200 | property_change_wait_list = rest->next; | |
4feb31b2 | 1201 | xfree (rest); |
ede4db72 RS |
1202 | return; |
1203 | } | |
1204 | prev = rest; | |
1205 | rest = rest->next; | |
1206 | } | |
1207 | } | |
1208 | ||
2f65feb6 RS |
1209 | /* Remove the property change expectation element for IDENTIFIER. */ |
1210 | ||
1211 | static Lisp_Object | |
dd0fe424 KS |
1212 | wait_for_property_change_unwind (loc) |
1213 | Lisp_Object loc; | |
2f65feb6 | 1214 | { |
dd0fe424 KS |
1215 | struct prop_location *location = XSAVE_VALUE (loc)->pointer; |
1216 | ||
1217 | unexpect_property_change (location); | |
1218 | if (location == property_change_reply_object) | |
1219 | property_change_reply_object = 0; | |
ab552306 | 1220 | return Qnil; |
2f65feb6 RS |
1221 | } |
1222 | ||
ede4db72 | 1223 | /* Actually wait for a property change. |
2f65feb6 | 1224 | IDENTIFIER should be the value that expect_property_change returned. */ |
ede4db72 RS |
1225 | |
1226 | static void | |
d1f21a66 RS |
1227 | wait_for_property_change (location) |
1228 | struct prop_location *location; | |
ede4db72 | 1229 | { |
2f65feb6 | 1230 | int secs, usecs; |
aed13378 | 1231 | int count = SPECPDL_INDEX (); |
d1f21a66 | 1232 | |
dd0fe424 KS |
1233 | if (property_change_reply_object) |
1234 | abort (); | |
2f65feb6 RS |
1235 | |
1236 | /* Make sure to do unexpect_property_change if we quit or err. */ | |
dd0fe424 KS |
1237 | record_unwind_protect (wait_for_property_change_unwind, |
1238 | make_save_value (location, 0)); | |
2f65feb6 | 1239 | |
f3fbd155 | 1240 | XSETCAR (property_change_reply, Qnil); |
afe1529d | 1241 | property_change_reply_object = location; |
dd0fe424 | 1242 | |
afe1529d RS |
1243 | /* If the event we are waiting for arrives beyond here, it will set |
1244 | property_change_reply, because property_change_reply_object says so. */ | |
d1f21a66 RS |
1245 | if (! location->arrived) |
1246 | { | |
d1f21a66 RS |
1247 | secs = x_selection_timeout / 1000; |
1248 | usecs = (x_selection_timeout % 1000) * 1000; | |
d9c0d4a3 | 1249 | TRACE2 (" Waiting %d secs, %d usecs", secs, usecs); |
d64b707c KS |
1250 | wait_reading_process_output (secs, usecs, 0, 0, |
1251 | property_change_reply, NULL, 0); | |
d1f21a66 | 1252 | |
8e713be6 | 1253 | if (NILP (XCAR (property_change_reply))) |
d9c0d4a3 GM |
1254 | { |
1255 | TRACE0 (" Timed out"); | |
1256 | error ("Timed out waiting for property-notify event"); | |
1257 | } | |
d1f21a66 | 1258 | } |
2f65feb6 RS |
1259 | |
1260 | unbind_to (count, Qnil); | |
ede4db72 RS |
1261 | } |
1262 | ||
1263 | /* Called from XTread_socket in response to a PropertyNotify event. */ | |
1264 | ||
1265 | void | |
1266 | x_handle_property_notify (event) | |
1267 | XPropertyEvent *event; | |
1268 | { | |
1269 | struct prop_location *prev = 0, *rest = property_change_wait_list; | |
d9c0d4a3 | 1270 | |
ede4db72 RS |
1271 | while (rest) |
1272 | { | |
dd0fe424 KS |
1273 | if (!rest->arrived |
1274 | && rest->property == event->atom | |
ede4db72 RS |
1275 | && rest->window == event->window |
1276 | && rest->display == event->display | |
1277 | && rest->desired_state == event->state) | |
1278 | { | |
d9c0d4a3 GM |
1279 | TRACE2 ("Expected %s of property %s", |
1280 | (event->state == PropertyDelete ? "deletion" : "change"), | |
1281 | XGetAtomName (event->display, event->atom)); | |
ede4db72 | 1282 | |
d1f21a66 RS |
1283 | rest->arrived = 1; |
1284 | ||
ede4db72 RS |
1285 | /* If this is the one wait_for_property_change is waiting for, |
1286 | tell it to wake up. */ | |
d1f21a66 | 1287 | if (rest == property_change_reply_object) |
f3fbd155 | 1288 | XSETCAR (property_change_reply, Qt); |
ede4db72 | 1289 | |
ede4db72 RS |
1290 | return; |
1291 | } | |
1b65481e | 1292 | |
ede4db72 RS |
1293 | prev = rest; |
1294 | rest = rest->next; | |
1295 | } | |
ede4db72 RS |
1296 | } |
1297 | ||
1298 | ||
1299 | \f | |
1300 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1301 | ||
1302 | static Lisp_Object | |
1303 | fetch_multiple_target (event) | |
1304 | XSelectionRequestEvent *event; | |
1305 | { | |
1306 | Display *display = event->display; | |
5d0ba25b | 1307 | Window window = event->requestor; |
ede4db72 RS |
1308 | Atom target = event->target; |
1309 | Atom selection_atom = event->selection; | |
1310 | int result; | |
1311 | ||
1312 | return | |
1313 | Fcons (QMULTIPLE, | |
1314 | x_get_window_property_as_lisp_data (display, window, target, | |
1315 | QMULTIPLE, selection_atom)); | |
1316 | } | |
1317 | ||
1318 | static Lisp_Object | |
1319 | copy_multiple_data (obj) | |
1320 | Lisp_Object obj; | |
1321 | { | |
1322 | Lisp_Object vec; | |
1323 | int i; | |
1324 | int size; | |
1325 | if (CONSP (obj)) | |
8e713be6 | 1326 | return Fcons (XCAR (obj), copy_multiple_data (XCDR (obj))); |
1b65481e | 1327 | |
b7826503 | 1328 | CHECK_VECTOR (obj); |
ede4db72 RS |
1329 | vec = Fmake_vector (size = XVECTOR (obj)->size, Qnil); |
1330 | for (i = 0; i < size; i++) | |
1331 | { | |
1332 | Lisp_Object vec2 = XVECTOR (obj)->contents [i]; | |
b7826503 | 1333 | CHECK_VECTOR (vec2); |
ede4db72 RS |
1334 | if (XVECTOR (vec2)->size != 2) |
1335 | /* ??? Confusing error message */ | |
1336 | Fsignal (Qerror, Fcons (build_string ("vectors must be of length 2"), | |
1337 | Fcons (vec2, Qnil))); | |
1338 | XVECTOR (vec)->contents [i] = Fmake_vector (2, Qnil); | |
1339 | XVECTOR (XVECTOR (vec)->contents [i])->contents [0] | |
1340 | = XVECTOR (vec2)->contents [0]; | |
1341 | XVECTOR (XVECTOR (vec)->contents [i])->contents [1] | |
1342 | = XVECTOR (vec2)->contents [1]; | |
1343 | } | |
1344 | return vec; | |
1345 | } | |
1346 | ||
1347 | #endif | |
1348 | ||
1349 | \f | |
1350 | /* Variables for communication with x_handle_selection_notify. */ | |
1351 | static Atom reading_which_selection; | |
1352 | static Lisp_Object reading_selection_reply; | |
1353 | static Window reading_selection_window; | |
1354 | ||
1355 | /* Do protocol to read selection-data from the server. | |
1356 | Converts this to Lisp data and returns it. */ | |
1357 | ||
1358 | static Lisp_Object | |
3a42401d JD |
1359 | x_get_foreign_selection (selection_symbol, target_type, time_stamp) |
1360 | Lisp_Object selection_symbol, target_type, time_stamp; | |
ede4db72 | 1361 | { |
378c33ca GM |
1362 | struct frame *sf = SELECTED_FRAME (); |
1363 | Window requestor_window = FRAME_X_WINDOW (sf); | |
1364 | Display *display = FRAME_X_DISPLAY (sf); | |
1365 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
5d0ba25b | 1366 | Time requestor_time = last_event_timestamp; |
5c3a351a RS |
1367 | Atom target_property = dpyinfo->Xatom_EMACS_TMP; |
1368 | Atom selection_atom = symbol_to_x_atom (dpyinfo, display, selection_symbol); | |
ede4db72 | 1369 | Atom type_atom; |
80da0190 | 1370 | int secs, usecs; |
5a499696 | 1371 | int count; |
55b2d45d | 1372 | Lisp_Object frame; |
ede4db72 RS |
1373 | |
1374 | if (CONSP (target_type)) | |
8e713be6 | 1375 | type_atom = symbol_to_x_atom (dpyinfo, display, XCAR (target_type)); |
ede4db72 | 1376 | else |
5c3a351a | 1377 | type_atom = symbol_to_x_atom (dpyinfo, display, target_type); |
ede4db72 | 1378 | |
3a42401d JD |
1379 | if (! NILP (time_stamp)) |
1380 | { | |
1381 | if (CONSP (time_stamp)) | |
1382 | requestor_time = (Time) cons_to_long (time_stamp); | |
1383 | else if (INTEGERP (time_stamp)) | |
1384 | requestor_time = (Time) XUINT (time_stamp); | |
1385 | else if (FLOATP (time_stamp)) | |
ff59904a | 1386 | requestor_time = (Time) XFLOAT_DATA (time_stamp); |
3a42401d JD |
1387 | else |
1388 | error ("TIME_STAMP must be cons or number"); | |
1389 | } | |
1390 | ||
ede4db72 | 1391 | BLOCK_INPUT; |
1b65481e | 1392 | |
5a499696 | 1393 | count = x_catch_errors (display); |
1b65481e | 1394 | |
d9c0d4a3 GM |
1395 | TRACE2 ("Get selection %s, type %s", |
1396 | XGetAtomName (display, type_atom), | |
1397 | XGetAtomName (display, target_property)); | |
1398 | ||
ede4db72 | 1399 | XConvertSelection (display, selection_atom, type_atom, target_property, |
5d0ba25b | 1400 | requestor_window, requestor_time); |
5c3a351a | 1401 | XFlush (display); |
ede4db72 RS |
1402 | |
1403 | /* Prepare to block until the reply has been read. */ | |
5d0ba25b | 1404 | reading_selection_window = requestor_window; |
ede4db72 | 1405 | reading_which_selection = selection_atom; |
f3fbd155 | 1406 | XSETCAR (reading_selection_reply, Qnil); |
55b2d45d RS |
1407 | |
1408 | frame = some_frame_on_display (dpyinfo); | |
1409 | ||
1410 | /* If the display no longer has frames, we can't expect | |
1411 | to get many more selection requests from it, so don't | |
1412 | bother trying to queue them. */ | |
1413 | if (!NILP (frame)) | |
1414 | { | |
dd0fe424 | 1415 | x_start_queuing_selection_requests (); |
55b2d45d RS |
1416 | |
1417 | record_unwind_protect (queue_selection_requests_unwind, | |
dd0fe424 | 1418 | Qnil); |
55b2d45d | 1419 | } |
ede4db72 RS |
1420 | UNBLOCK_INPUT; |
1421 | ||
80da0190 RS |
1422 | /* This allows quits. Also, don't wait forever. */ |
1423 | secs = x_selection_timeout / 1000; | |
1424 | usecs = (x_selection_timeout % 1000) * 1000; | |
d9c0d4a3 | 1425 | TRACE1 (" Start waiting %d secs for SelectionNotify", secs); |
d64b707c KS |
1426 | wait_reading_process_output (secs, usecs, 0, 0, |
1427 | reading_selection_reply, NULL, 0); | |
d9c0d4a3 | 1428 | TRACE1 (" Got event = %d", !NILP (XCAR (reading_selection_reply))); |
ede4db72 | 1429 | |
7c6b2ea4 | 1430 | BLOCK_INPUT; |
a7b24d46 | 1431 | x_check_errors (display, "Cannot get selection: %s"); |
5a499696 | 1432 | x_uncatch_errors (display, count); |
7c6b2ea4 RS |
1433 | UNBLOCK_INPUT; |
1434 | ||
8e713be6 | 1435 | if (NILP (XCAR (reading_selection_reply))) |
606140dd | 1436 | error ("Timed out waiting for reply from selection owner"); |
8e713be6 | 1437 | if (EQ (XCAR (reading_selection_reply), Qlambda)) |
d5db4077 | 1438 | error ("No `%s' selection", SDATA (SYMBOL_NAME (selection_symbol))); |
ede4db72 RS |
1439 | |
1440 | /* Otherwise, the selection is waiting for us on the requested property. */ | |
1441 | return | |
5d0ba25b | 1442 | x_get_window_property_as_lisp_data (display, requestor_window, |
ede4db72 RS |
1443 | target_property, target_type, |
1444 | selection_atom); | |
1445 | } | |
1446 | \f | |
1447 | /* Subroutines of x_get_window_property_as_lisp_data */ | |
1448 | ||
4feb31b2 | 1449 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1450 | |
ede4db72 RS |
1451 | static void |
1452 | x_get_window_property (display, window, property, data_ret, bytes_ret, | |
1453 | actual_type_ret, actual_format_ret, actual_size_ret, | |
1454 | delete_p) | |
1455 | Display *display; | |
1456 | Window window; | |
1457 | Atom property; | |
1458 | unsigned char **data_ret; | |
1459 | int *bytes_ret; | |
1460 | Atom *actual_type_ret; | |
1461 | int *actual_format_ret; | |
1462 | unsigned long *actual_size_ret; | |
1463 | int delete_p; | |
1464 | { | |
1465 | int total_size; | |
1466 | unsigned long bytes_remaining; | |
1467 | int offset = 0; | |
1468 | unsigned char *tmp_data = 0; | |
1469 | int result; | |
1470 | int buffer_size = SELECTION_QUANTUM (display); | |
1b65481e | 1471 | |
d9c0d4a3 GM |
1472 | if (buffer_size > MAX_SELECTION_QUANTUM) |
1473 | buffer_size = MAX_SELECTION_QUANTUM; | |
1b65481e | 1474 | |
ede4db72 | 1475 | BLOCK_INPUT; |
1b65481e | 1476 | |
ede4db72 RS |
1477 | /* First probe the thing to find out how big it is. */ |
1478 | result = XGetWindowProperty (display, window, property, | |
137edb72 | 1479 | 0L, 0L, False, AnyPropertyType, |
ede4db72 RS |
1480 | actual_type_ret, actual_format_ret, |
1481 | actual_size_ret, | |
1482 | &bytes_remaining, &tmp_data); | |
ede4db72 RS |
1483 | if (result != Success) |
1484 | { | |
2f65feb6 | 1485 | UNBLOCK_INPUT; |
ede4db72 RS |
1486 | *data_ret = 0; |
1487 | *bytes_ret = 0; | |
1488 | return; | |
1489 | } | |
1b65481e | 1490 | |
0158abbc RS |
1491 | /* This was allocated by Xlib, so use XFree. */ |
1492 | XFree ((char *) tmp_data); | |
1b65481e | 1493 | |
ede4db72 RS |
1494 | if (*actual_type_ret == None || *actual_format_ret == 0) |
1495 | { | |
2f65feb6 | 1496 | UNBLOCK_INPUT; |
ede4db72 RS |
1497 | return; |
1498 | } | |
1499 | ||
1500 | total_size = bytes_remaining + 1; | |
1501 | *data_ret = (unsigned char *) xmalloc (total_size); | |
1b65481e | 1502 | |
2a1a4c9d | 1503 | /* Now read, until we've gotten it all. */ |
ede4db72 RS |
1504 | while (bytes_remaining) |
1505 | { | |
d9c0d4a3 | 1506 | #ifdef TRACE_SELECTION |
ede4db72 RS |
1507 | int last = bytes_remaining; |
1508 | #endif | |
1509 | result | |
1510 | = XGetWindowProperty (display, window, property, | |
137edb72 | 1511 | (long)offset/4, (long)buffer_size/4, |
2f65feb6 | 1512 | False, |
ede4db72 RS |
1513 | AnyPropertyType, |
1514 | actual_type_ret, actual_format_ret, | |
1515 | actual_size_ret, &bytes_remaining, &tmp_data); | |
d9c0d4a3 GM |
1516 | |
1517 | TRACE2 ("Read %ld bytes from property %s", | |
1518 | last - bytes_remaining, | |
1519 | XGetAtomName (display, property)); | |
1520 | ||
ede4db72 RS |
1521 | /* If this doesn't return Success at this point, it means that |
1522 | some clod deleted the selection while we were in the midst of | |
d9c0d4a3 GM |
1523 | reading it. Deal with that, I guess.... */ |
1524 | if (result != Success) | |
1525 | break; | |
ede4db72 RS |
1526 | *actual_size_ret *= *actual_format_ret / 8; |
1527 | bcopy (tmp_data, (*data_ret) + offset, *actual_size_ret); | |
1528 | offset += *actual_size_ret; | |
1b65481e | 1529 | |
0158abbc RS |
1530 | /* This was allocated by Xlib, so use XFree. */ |
1531 | XFree ((char *) tmp_data); | |
ede4db72 | 1532 | } |
2f65feb6 | 1533 | |
5c3a351a | 1534 | XFlush (display); |
ede4db72 RS |
1535 | UNBLOCK_INPUT; |
1536 | *bytes_ret = offset; | |
1537 | } | |
1538 | \f | |
4feb31b2 | 1539 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1540 | |
ede4db72 RS |
1541 | static void |
1542 | receive_incremental_selection (display, window, property, target_type, | |
1543 | min_size_bytes, data_ret, size_bytes_ret, | |
1544 | type_ret, format_ret, size_ret) | |
1545 | Display *display; | |
1546 | Window window; | |
1547 | Atom property; | |
1548 | Lisp_Object target_type; /* for error messages only */ | |
1549 | unsigned int min_size_bytes; | |
1550 | unsigned char **data_ret; | |
1551 | int *size_bytes_ret; | |
1552 | Atom *type_ret; | |
1553 | unsigned long *size_ret; | |
1554 | int *format_ret; | |
1555 | { | |
1556 | int offset = 0; | |
d1f21a66 | 1557 | struct prop_location *wait_object; |
ede4db72 RS |
1558 | *size_bytes_ret = min_size_bytes; |
1559 | *data_ret = (unsigned char *) xmalloc (*size_bytes_ret); | |
d9c0d4a3 GM |
1560 | |
1561 | TRACE1 ("Read %d bytes incrementally", min_size_bytes); | |
2f65feb6 RS |
1562 | |
1563 | /* At this point, we have read an INCR property. | |
1564 | Delete the property to ack it. | |
1565 | (But first, prepare to receive the next event in this handshake.) | |
ede4db72 RS |
1566 | |
1567 | Now, we must loop, waiting for the sending window to put a value on | |
1568 | that property, then reading the property, then deleting it to ack. | |
1569 | We are done when the sender places a property of length 0. | |
1570 | */ | |
2f65feb6 RS |
1571 | BLOCK_INPUT; |
1572 | XSelectInput (display, window, STANDARD_EVENT_SET | PropertyChangeMask); | |
d9c0d4a3 | 1573 | TRACE1 (" Delete property %s", |
dd0fe424 | 1574 | SDATA (SYMBOL_NAME (x_atom_to_symbol (display, property)))); |
2f65feb6 | 1575 | XDeleteProperty (display, window, property); |
d9c0d4a3 | 1576 | TRACE1 (" Expect new value of property %s", |
dd0fe424 | 1577 | SDATA (SYMBOL_NAME (x_atom_to_symbol (display, property)))); |
d1f21a66 RS |
1578 | wait_object = expect_property_change (display, window, property, |
1579 | PropertyNewValue); | |
5c3a351a | 1580 | XFlush (display); |
2f65feb6 RS |
1581 | UNBLOCK_INPUT; |
1582 | ||
ede4db72 RS |
1583 | while (1) |
1584 | { | |
1585 | unsigned char *tmp_data; | |
1586 | int tmp_size_bytes; | |
d9c0d4a3 GM |
1587 | |
1588 | TRACE0 (" Wait for property change"); | |
d1f21a66 | 1589 | wait_for_property_change (wait_object); |
1b65481e | 1590 | |
ede4db72 | 1591 | /* expect it again immediately, because x_get_window_property may |
2a1a4c9d | 1592 | .. no it won't, I don't get it. |
d9c0d4a3 GM |
1593 | .. Ok, I get it now, the Xt code that implements INCR is broken. */ |
1594 | TRACE0 (" Get property value"); | |
ede4db72 RS |
1595 | x_get_window_property (display, window, property, |
1596 | &tmp_data, &tmp_size_bytes, | |
1597 | type_ret, format_ret, size_ret, 1); | |
1598 | ||
d9c0d4a3 GM |
1599 | TRACE1 (" Read increment of %d bytes", tmp_size_bytes); |
1600 | ||
ede4db72 RS |
1601 | if (tmp_size_bytes == 0) /* we're done */ |
1602 | { | |
d9c0d4a3 GM |
1603 | TRACE0 ("Done reading incrementally"); |
1604 | ||
2f65feb6 RS |
1605 | if (! waiting_for_other_props_on_window (display, window)) |
1606 | XSelectInput (display, window, STANDARD_EVENT_SET); | |
4feb31b2 | 1607 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1608 | calls xmalloc itself. */ |
4feb31b2 | 1609 | if (tmp_data) xfree (tmp_data); |
ede4db72 RS |
1610 | break; |
1611 | } | |
2f65feb6 RS |
1612 | |
1613 | BLOCK_INPUT; | |
d9c0d4a3 GM |
1614 | TRACE1 (" ACK by deleting property %s", |
1615 | XGetAtomName (display, property)); | |
2f65feb6 | 1616 | XDeleteProperty (display, window, property); |
d1f21a66 RS |
1617 | wait_object = expect_property_change (display, window, property, |
1618 | PropertyNewValue); | |
5c3a351a | 1619 | XFlush (display); |
2f65feb6 RS |
1620 | UNBLOCK_INPUT; |
1621 | ||
ede4db72 RS |
1622 | if (*size_bytes_ret < offset + tmp_size_bytes) |
1623 | { | |
ede4db72 RS |
1624 | *size_bytes_ret = offset + tmp_size_bytes; |
1625 | *data_ret = (unsigned char *) xrealloc (*data_ret, *size_bytes_ret); | |
1626 | } | |
1b65481e | 1627 | |
018cfa07 | 1628 | bcopy (tmp_data, (*data_ret) + offset, tmp_size_bytes); |
ede4db72 | 1629 | offset += tmp_size_bytes; |
1b65481e | 1630 | |
4feb31b2 | 1631 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1632 | calls xmalloc itself. */ |
4feb31b2 | 1633 | xfree (tmp_data); |
ede4db72 RS |
1634 | } |
1635 | } | |
d9c0d4a3 | 1636 | |
ede4db72 RS |
1637 | \f |
1638 | /* Once a requested selection is "ready" (we got a SelectionNotify event), | |
1639 | fetch value from property PROPERTY of X window WINDOW on display DISPLAY. | |
1640 | TARGET_TYPE and SELECTION_ATOM are used in error message if this fails. */ | |
1641 | ||
1642 | static Lisp_Object | |
1643 | x_get_window_property_as_lisp_data (display, window, property, target_type, | |
1644 | selection_atom) | |
1645 | Display *display; | |
1646 | Window window; | |
1647 | Atom property; | |
1648 | Lisp_Object target_type; /* for error messages only */ | |
1649 | Atom selection_atom; /* for error messages only */ | |
1650 | { | |
1651 | Atom actual_type; | |
1652 | int actual_format; | |
1653 | unsigned long actual_size; | |
1654 | unsigned char *data = 0; | |
1655 | int bytes = 0; | |
1656 | Lisp_Object val; | |
5c3a351a | 1657 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 | 1658 | |
d9c0d4a3 GM |
1659 | TRACE0 ("Reading selection data"); |
1660 | ||
ede4db72 RS |
1661 | x_get_window_property (display, window, property, &data, &bytes, |
1662 | &actual_type, &actual_format, &actual_size, 1); | |
1663 | if (! data) | |
1664 | { | |
1665 | int there_is_a_selection_owner; | |
1666 | BLOCK_INPUT; | |
1667 | there_is_a_selection_owner | |
1668 | = XGetSelectionOwner (display, selection_atom); | |
1669 | UNBLOCK_INPUT; | |
5a499696 RS |
1670 | Fsignal (Qerror, |
1671 | there_is_a_selection_owner | |
1672 | ? Fcons (build_string ("selection owner couldn't convert"), | |
ede4db72 RS |
1673 | actual_type |
1674 | ? Fcons (target_type, | |
d9c0d4a3 | 1675 | Fcons (x_atom_to_symbol (display, |
5c3a351a | 1676 | actual_type), |
ede4db72 RS |
1677 | Qnil)) |
1678 | : Fcons (target_type, Qnil)) | |
5a499696 | 1679 | : Fcons (build_string ("no selection"), |
d9c0d4a3 | 1680 | Fcons (x_atom_to_symbol (display, |
5a499696 RS |
1681 | selection_atom), |
1682 | Qnil))); | |
ede4db72 | 1683 | } |
1b65481e | 1684 | |
5c3a351a | 1685 | if (actual_type == dpyinfo->Xatom_INCR) |
ede4db72 RS |
1686 | { |
1687 | /* That wasn't really the data, just the beginning. */ | |
1688 | ||
1689 | unsigned int min_size_bytes = * ((unsigned int *) data); | |
1690 | BLOCK_INPUT; | |
4feb31b2 | 1691 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1692 | calls xmalloc itself. */ |
4feb31b2 | 1693 | xfree ((char *) data); |
ede4db72 RS |
1694 | UNBLOCK_INPUT; |
1695 | receive_incremental_selection (display, window, property, target_type, | |
1696 | min_size_bytes, &data, &bytes, | |
1697 | &actual_type, &actual_format, | |
1698 | &actual_size); | |
1699 | } | |
1700 | ||
2f65feb6 | 1701 | BLOCK_INPUT; |
d9c0d4a3 | 1702 | TRACE1 (" Delete property %s", XGetAtomName (display, property)); |
2f65feb6 | 1703 | XDeleteProperty (display, window, property); |
5c3a351a | 1704 | XFlush (display); |
2f65feb6 RS |
1705 | UNBLOCK_INPUT; |
1706 | ||
ede4db72 RS |
1707 | /* It's been read. Now convert it to a lisp object in some semi-rational |
1708 | manner. */ | |
1709 | val = selection_data_to_lisp_data (display, data, bytes, | |
1710 | actual_type, actual_format); | |
1b65481e | 1711 | |
4feb31b2 | 1712 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1713 | calls xmalloc itself. */ |
4feb31b2 | 1714 | xfree ((char *) data); |
ede4db72 RS |
1715 | return val; |
1716 | } | |
1717 | \f | |
1718 | /* These functions convert from the selection data read from the server into | |
1719 | something that we can use from Lisp, and vice versa. | |
1720 | ||
1721 | Type: Format: Size: Lisp Type: | |
1722 | ----- ------- ----- ----------- | |
1723 | * 8 * String | |
1724 | ATOM 32 1 Symbol | |
1725 | ATOM 32 > 1 Vector of Symbols | |
1726 | * 16 1 Integer | |
1727 | * 16 > 1 Vector of Integers | |
1728 | * 32 1 if <=16 bits: Integer | |
1729 | if > 16 bits: Cons of top16, bot16 | |
1730 | * 32 > 1 Vector of the above | |
1731 | ||
1732 | When converting a Lisp number to C, it is assumed to be of format 16 if | |
1733 | it is an integer, and of format 32 if it is a cons of two integers. | |
1734 | ||
1735 | When converting a vector of numbers from Lisp to C, it is assumed to be | |
1736 | of format 16 if every element in the vector is an integer, and is assumed | |
1737 | to be of format 32 if any element is a cons of two integers. | |
1738 | ||
1739 | When converting an object to C, it may be of the form (SYMBOL . <data>) | |
1740 | where SYMBOL is what we should claim that the type is. Format and | |
1741 | representation are as above. */ | |
1742 | ||
1743 | ||
1744 | ||
1745 | static Lisp_Object | |
1746 | selection_data_to_lisp_data (display, data, size, type, format) | |
1747 | Display *display; | |
1748 | unsigned char *data; | |
1749 | Atom type; | |
1750 | int size, format; | |
1751 | { | |
5c3a351a | 1752 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 | 1753 | |
5c3a351a | 1754 | if (type == dpyinfo->Xatom_NULL) |
ede4db72 RS |
1755 | return QNULL; |
1756 | ||
1757 | /* Convert any 8-bit data to a string, for compactness. */ | |
1758 | else if (format == 8) | |
e6c7c988 | 1759 | { |
e57ad4d8 KH |
1760 | Lisp_Object str, lispy_type; |
1761 | ||
1762 | str = make_unibyte_string ((char *) data, size); | |
1763 | /* Indicate that this string is from foreign selection by a text | |
1764 | property `foreign-selection' so that the caller of | |
1765 | x-get-selection-internal (usually x-get-selection) can know | |
1766 | that the string must be decode. */ | |
1767 | if (type == dpyinfo->Xatom_COMPOUND_TEXT) | |
1768 | lispy_type = QCOMPOUND_TEXT; | |
1769 | else if (type == dpyinfo->Xatom_UTF8_STRING) | |
1770 | lispy_type = QUTF8_STRING; | |
e6c7c988 | 1771 | else |
e57ad4d8 KH |
1772 | lispy_type = QSTRING; |
1773 | Fput_text_property (make_number (0), make_number (size), | |
1774 | Qforeign_selection, lispy_type, str); | |
e6c7c988 KH |
1775 | return str; |
1776 | } | |
ede4db72 RS |
1777 | /* Convert a single atom to a Lisp_Symbol. Convert a set of atoms to |
1778 | a vector of symbols. | |
1779 | */ | |
1780 | else if (type == XA_ATOM) | |
1781 | { | |
1782 | int i; | |
1783 | if (size == sizeof (Atom)) | |
d9c0d4a3 | 1784 | return x_atom_to_symbol (display, *((Atom *) data)); |
ede4db72 RS |
1785 | else |
1786 | { | |
e607a484 RS |
1787 | Lisp_Object v = Fmake_vector (make_number (size / sizeof (Atom)), |
1788 | make_number (0)); | |
ede4db72 | 1789 | for (i = 0; i < size / sizeof (Atom); i++) |
e607a484 | 1790 | Faset (v, make_number (i), |
d9c0d4a3 | 1791 | x_atom_to_symbol (display, ((Atom *) data) [i])); |
ede4db72 RS |
1792 | return v; |
1793 | } | |
1794 | } | |
1795 | ||
1796 | /* Convert a single 16 or small 32 bit number to a Lisp_Int. | |
1797 | If the number is > 16 bits, convert it to a cons of integers, | |
1798 | 16 bits in each half. | |
1799 | */ | |
2f51feb8 AS |
1800 | else if (format == 32 && size == sizeof (int)) |
1801 | return long_to_cons (((unsigned int *) data) [0]); | |
ede4db72 RS |
1802 | else if (format == 16 && size == sizeof (short)) |
1803 | return make_number ((int) (((unsigned short *) data) [0])); | |
1804 | ||
1805 | /* Convert any other kind of data to a vector of numbers, represented | |
1806 | as above (as an integer, or a cons of two 16 bit integers.) | |
1807 | */ | |
1808 | else if (format == 16) | |
1809 | { | |
1810 | int i; | |
937a3875 RS |
1811 | Lisp_Object v; |
1812 | v = Fmake_vector (make_number (size / 2), make_number (0)); | |
1813 | for (i = 0; i < size / 2; i++) | |
ede4db72 RS |
1814 | { |
1815 | int j = (int) ((unsigned short *) data) [i]; | |
e607a484 | 1816 | Faset (v, make_number (i), make_number (j)); |
ede4db72 RS |
1817 | } |
1818 | return v; | |
1819 | } | |
1820 | else | |
1821 | { | |
1822 | int i; | |
e607a484 | 1823 | Lisp_Object v = Fmake_vector (make_number (size / 4), make_number (0)); |
ede4db72 RS |
1824 | for (i = 0; i < size / 4; i++) |
1825 | { | |
2f51feb8 | 1826 | unsigned int j = ((unsigned int *) data) [i]; |
e607a484 | 1827 | Faset (v, make_number (i), long_to_cons (j)); |
ede4db72 RS |
1828 | } |
1829 | return v; | |
1830 | } | |
1831 | } | |
1832 | ||
1833 | ||
4feb31b2 | 1834 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1835 | |
ede4db72 RS |
1836 | static void |
1837 | lisp_data_to_selection_data (display, obj, | |
aca39f42 RS |
1838 | data_ret, type_ret, size_ret, |
1839 | format_ret, nofree_ret) | |
ede4db72 RS |
1840 | Display *display; |
1841 | Lisp_Object obj; | |
1842 | unsigned char **data_ret; | |
1843 | Atom *type_ret; | |
1844 | unsigned int *size_ret; | |
1845 | int *format_ret; | |
aca39f42 | 1846 | int *nofree_ret; |
ede4db72 RS |
1847 | { |
1848 | Lisp_Object type = Qnil; | |
5c3a351a | 1849 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
aca39f42 RS |
1850 | |
1851 | *nofree_ret = 0; | |
1852 | ||
8e713be6 | 1853 | if (CONSP (obj) && SYMBOLP (XCAR (obj))) |
ede4db72 | 1854 | { |
8e713be6 KR |
1855 | type = XCAR (obj); |
1856 | obj = XCDR (obj); | |
1857 | if (CONSP (obj) && NILP (XCDR (obj))) | |
1858 | obj = XCAR (obj); | |
ede4db72 RS |
1859 | } |
1860 | ||
1861 | if (EQ (obj, QNULL) || (EQ (type, QNULL))) | |
1862 | { /* This is not the same as declining */ | |
1863 | *format_ret = 32; | |
1864 | *size_ret = 0; | |
1865 | *data_ret = 0; | |
1866 | type = QNULL; | |
1867 | } | |
1868 | else if (STRINGP (obj)) | |
1869 | { | |
5109c8dd | 1870 | xassert (! STRING_MULTIBYTE (obj)); |
7b9ae523 | 1871 | if (NILP (type)) |
5109c8dd KH |
1872 | type = QSTRING; |
1873 | *format_ret = 8; | |
1874 | *size_ret = SBYTES (obj); | |
1875 | *data_ret = SDATA (obj); | |
1876 | *nofree_ret = 1; | |
ede4db72 RS |
1877 | } |
1878 | else if (SYMBOLP (obj)) | |
1879 | { | |
1880 | *format_ret = 32; | |
1881 | *size_ret = 1; | |
1882 | *data_ret = (unsigned char *) xmalloc (sizeof (Atom) + 1); | |
1883 | (*data_ret) [sizeof (Atom)] = 0; | |
5c3a351a | 1884 | (*(Atom **) data_ret) [0] = symbol_to_x_atom (dpyinfo, display, obj); |
ede4db72 RS |
1885 | if (NILP (type)) type = QATOM; |
1886 | } | |
7da64e5c | 1887 | else if (INTEGERP (obj) |
ede4db72 RS |
1888 | && XINT (obj) < 0xFFFF |
1889 | && XINT (obj) > -0xFFFF) | |
1890 | { | |
1891 | *format_ret = 16; | |
1892 | *size_ret = 1; | |
1893 | *data_ret = (unsigned char *) xmalloc (sizeof (short) + 1); | |
1894 | (*data_ret) [sizeof (short)] = 0; | |
1895 | (*(short **) data_ret) [0] = (short) XINT (obj); | |
1896 | if (NILP (type)) type = QINTEGER; | |
1897 | } | |
a87ed99c | 1898 | else if (INTEGERP (obj) |
8e713be6 KR |
1899 | || (CONSP (obj) && INTEGERP (XCAR (obj)) |
1900 | && (INTEGERP (XCDR (obj)) | |
1901 | || (CONSP (XCDR (obj)) | |
1902 | && INTEGERP (XCAR (XCDR (obj))))))) | |
ede4db72 RS |
1903 | { |
1904 | *format_ret = 32; | |
1905 | *size_ret = 1; | |
1906 | *data_ret = (unsigned char *) xmalloc (sizeof (long) + 1); | |
1907 | (*data_ret) [sizeof (long)] = 0; | |
1908 | (*(unsigned long **) data_ret) [0] = cons_to_long (obj); | |
1909 | if (NILP (type)) type = QINTEGER; | |
1910 | } | |
1911 | else if (VECTORP (obj)) | |
1912 | { | |
1913 | /* Lisp_Vectors may represent a set of ATOMs; | |
1914 | a set of 16 or 32 bit INTEGERs; | |
1915 | or a set of ATOM_PAIRs (represented as [[A1 A2] [A3 A4] ...] | |
1916 | */ | |
1917 | int i; | |
1918 | ||
1919 | if (SYMBOLP (XVECTOR (obj)->contents [0])) | |
1920 | /* This vector is an ATOM set */ | |
1921 | { | |
1922 | if (NILP (type)) type = QATOM; | |
1923 | *size_ret = XVECTOR (obj)->size; | |
1924 | *format_ret = 32; | |
1925 | *data_ret = (unsigned char *) xmalloc ((*size_ret) * sizeof (Atom)); | |
1926 | for (i = 0; i < *size_ret; i++) | |
1927 | if (SYMBOLP (XVECTOR (obj)->contents [i])) | |
1928 | (*(Atom **) data_ret) [i] | |
5c3a351a | 1929 | = symbol_to_x_atom (dpyinfo, display, XVECTOR (obj)->contents [i]); |
ede4db72 RS |
1930 | else |
1931 | Fsignal (Qerror, /* Qselection_error */ | |
1932 | Fcons (build_string | |
1933 | ("all elements of selection vector must have same type"), | |
1934 | Fcons (obj, Qnil))); | |
1935 | } | |
1936 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1937 | else if (VECTORP (XVECTOR (obj)->contents [0])) | |
1938 | /* This vector is an ATOM_PAIR set */ | |
1939 | { | |
1940 | if (NILP (type)) type = QATOM_PAIR; | |
1941 | *size_ret = XVECTOR (obj)->size; | |
1942 | *format_ret = 32; | |
1943 | *data_ret = (unsigned char *) | |
1944 | xmalloc ((*size_ret) * sizeof (Atom) * 2); | |
1945 | for (i = 0; i < *size_ret; i++) | |
1946 | if (VECTORP (XVECTOR (obj)->contents [i])) | |
1947 | { | |
1948 | Lisp_Object pair = XVECTOR (obj)->contents [i]; | |
1949 | if (XVECTOR (pair)->size != 2) | |
1950 | Fsignal (Qerror, | |
1b65481e | 1951 | Fcons (build_string |
ede4db72 RS |
1952 | ("elements of the vector must be vectors of exactly two elements"), |
1953 | Fcons (pair, Qnil))); | |
1b65481e | 1954 | |
ede4db72 | 1955 | (*(Atom **) data_ret) [i * 2] |
5c3a351a RS |
1956 | = symbol_to_x_atom (dpyinfo, display, |
1957 | XVECTOR (pair)->contents [0]); | |
ede4db72 | 1958 | (*(Atom **) data_ret) [(i * 2) + 1] |
5c3a351a RS |
1959 | = symbol_to_x_atom (dpyinfo, display, |
1960 | XVECTOR (pair)->contents [1]); | |
ede4db72 RS |
1961 | } |
1962 | else | |
1963 | Fsignal (Qerror, | |
1964 | Fcons (build_string | |
1965 | ("all elements of the vector must be of the same type"), | |
1966 | Fcons (obj, Qnil))); | |
1b65481e | 1967 | |
ede4db72 RS |
1968 | } |
1969 | #endif | |
1970 | else | |
1971 | /* This vector is an INTEGER set, or something like it */ | |
1972 | { | |
1973 | *size_ret = XVECTOR (obj)->size; | |
1974 | if (NILP (type)) type = QINTEGER; | |
1975 | *format_ret = 16; | |
1976 | for (i = 0; i < *size_ret; i++) | |
1977 | if (CONSP (XVECTOR (obj)->contents [i])) | |
1978 | *format_ret = 32; | |
7da64e5c | 1979 | else if (!INTEGERP (XVECTOR (obj)->contents [i])) |
ede4db72 RS |
1980 | Fsignal (Qerror, /* Qselection_error */ |
1981 | Fcons (build_string | |
1982 | ("elements of selection vector must be integers or conses of integers"), | |
1983 | Fcons (obj, Qnil))); | |
1984 | ||
1985 | *data_ret = (unsigned char *) xmalloc (*size_ret * (*format_ret/8)); | |
1986 | for (i = 0; i < *size_ret; i++) | |
1987 | if (*format_ret == 32) | |
1988 | (*((unsigned long **) data_ret)) [i] | |
1989 | = cons_to_long (XVECTOR (obj)->contents [i]); | |
1990 | else | |
1991 | (*((unsigned short **) data_ret)) [i] | |
1992 | = (unsigned short) cons_to_long (XVECTOR (obj)->contents [i]); | |
1993 | } | |
1994 | } | |
1995 | else | |
1996 | Fsignal (Qerror, /* Qselection_error */ | |
1997 | Fcons (build_string ("unrecognised selection data"), | |
1998 | Fcons (obj, Qnil))); | |
1999 | ||
5c3a351a | 2000 | *type_ret = symbol_to_x_atom (dpyinfo, display, type); |
ede4db72 RS |
2001 | } |
2002 | ||
2003 | static Lisp_Object | |
2004 | clean_local_selection_data (obj) | |
2005 | Lisp_Object obj; | |
2006 | { | |
2007 | if (CONSP (obj) | |
8e713be6 KR |
2008 | && INTEGERP (XCAR (obj)) |
2009 | && CONSP (XCDR (obj)) | |
2010 | && INTEGERP (XCAR (XCDR (obj))) | |
2011 | && NILP (XCDR (XCDR (obj)))) | |
2012 | obj = Fcons (XCAR (obj), XCDR (obj)); | |
ede4db72 RS |
2013 | |
2014 | if (CONSP (obj) | |
8e713be6 KR |
2015 | && INTEGERP (XCAR (obj)) |
2016 | && INTEGERP (XCDR (obj))) | |
ede4db72 | 2017 | { |
8e713be6 KR |
2018 | if (XINT (XCAR (obj)) == 0) |
2019 | return XCDR (obj); | |
2020 | if (XINT (XCAR (obj)) == -1) | |
2021 | return make_number (- XINT (XCDR (obj))); | |
ede4db72 RS |
2022 | } |
2023 | if (VECTORP (obj)) | |
2024 | { | |
2025 | int i; | |
2026 | int size = XVECTOR (obj)->size; | |
2027 | Lisp_Object copy; | |
2028 | if (size == 1) | |
2029 | return clean_local_selection_data (XVECTOR (obj)->contents [0]); | |
e607a484 | 2030 | copy = Fmake_vector (make_number (size), Qnil); |
ede4db72 RS |
2031 | for (i = 0; i < size; i++) |
2032 | XVECTOR (copy)->contents [i] | |
2033 | = clean_local_selection_data (XVECTOR (obj)->contents [i]); | |
2034 | return copy; | |
2035 | } | |
2036 | return obj; | |
2037 | } | |
2038 | \f | |
2039 | /* Called from XTread_socket to handle SelectionNotify events. | |
606140dd KH |
2040 | If it's the selection we are waiting for, stop waiting |
2041 | by setting the car of reading_selection_reply to non-nil. | |
2042 | We store t there if the reply is successful, lambda if not. */ | |
ede4db72 RS |
2043 | |
2044 | void | |
2045 | x_handle_selection_notify (event) | |
2046 | XSelectionEvent *event; | |
2047 | { | |
5d0ba25b | 2048 | if (event->requestor != reading_selection_window) |
ede4db72 RS |
2049 | return; |
2050 | if (event->selection != reading_which_selection) | |
2051 | return; | |
2052 | ||
d9c0d4a3 | 2053 | TRACE0 ("Received SelectionNotify"); |
f3fbd155 KR |
2054 | XSETCAR (reading_selection_reply, |
2055 | (event->property != 0 ? Qt : Qlambda)); | |
ede4db72 RS |
2056 | } |
2057 | ||
2058 | \f | |
a0d76c27 | 2059 | DEFUN ("x-own-selection-internal", Fx_own_selection_internal, |
8c1a1077 PJ |
2060 | Sx_own_selection_internal, 2, 2, 0, |
2061 | doc: /* Assert an X selection of the given TYPE with the given VALUE. | |
2062 | TYPE is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2063 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2064 | VALUE is typically a string, or a cons of two markers, but may be | |
2065 | anything that the functions on `selection-converter-alist' know about. */) | |
2066 | (selection_name, selection_value) | |
ede4db72 RS |
2067 | Lisp_Object selection_name, selection_value; |
2068 | { | |
703e0710 | 2069 | check_x (); |
b7826503 | 2070 | CHECK_SYMBOL (selection_name); |
606140dd | 2071 | if (NILP (selection_value)) error ("selection-value may not be nil"); |
ede4db72 RS |
2072 | x_own_selection (selection_name, selection_value); |
2073 | return selection_value; | |
2074 | } | |
2075 | ||
2076 | ||
2077 | /* Request the selection value from the owner. If we are the owner, | |
2078 | simply return our selection value. If we are not the owner, this | |
2079 | will block until all of the data has arrived. */ | |
2080 | ||
a0d76c27 | 2081 | DEFUN ("x-get-selection-internal", Fx_get_selection_internal, |
3a42401d | 2082 | Sx_get_selection_internal, 2, 3, 0, |
8c1a1077 PJ |
2083 | doc: /* Return text selected from some X window. |
2084 | SELECTION is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2085 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
3a42401d JD |
2086 | TYPE is the type of data desired, typically `STRING'. |
2087 | TIME_STAMP is the time to use in the XConvertSelection call for foreign | |
2088 | selections. If omitted, defaults to the time for the last event. */) | |
2089 | (selection_symbol, target_type, time_stamp) | |
2090 | Lisp_Object selection_symbol, target_type, time_stamp; | |
ede4db72 RS |
2091 | { |
2092 | Lisp_Object val = Qnil; | |
2093 | struct gcpro gcpro1, gcpro2; | |
2094 | GCPRO2 (target_type, val); /* we store newly consed data into these */ | |
703e0710 | 2095 | check_x (); |
b7826503 | 2096 | CHECK_SYMBOL (selection_symbol); |
ede4db72 RS |
2097 | |
2098 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
2099 | if (CONSP (target_type) | |
8e713be6 | 2100 | && XCAR (target_type) == QMULTIPLE) |
ede4db72 | 2101 | { |
b7826503 | 2102 | CHECK_VECTOR (XCDR (target_type)); |
ede4db72 RS |
2103 | /* So we don't destructively modify this... */ |
2104 | target_type = copy_multiple_data (target_type); | |
2105 | } | |
2106 | else | |
2107 | #endif | |
b7826503 | 2108 | CHECK_SYMBOL (target_type); |
ede4db72 | 2109 | |
5109c8dd | 2110 | val = x_get_local_selection (selection_symbol, target_type, 1); |
ede4db72 RS |
2111 | |
2112 | if (NILP (val)) | |
2113 | { | |
3a42401d | 2114 | val = x_get_foreign_selection (selection_symbol, target_type, time_stamp); |
ede4db72 RS |
2115 | goto DONE; |
2116 | } | |
2117 | ||
2118 | if (CONSP (val) | |
8e713be6 | 2119 | && SYMBOLP (XCAR (val))) |
ede4db72 | 2120 | { |
8e713be6 KR |
2121 | val = XCDR (val); |
2122 | if (CONSP (val) && NILP (XCDR (val))) | |
2123 | val = XCAR (val); | |
ede4db72 RS |
2124 | } |
2125 | val = clean_local_selection_data (val); | |
2126 | DONE: | |
2127 | UNGCPRO; | |
2128 | return val; | |
2129 | } | |
2130 | ||
a0d76c27 | 2131 | DEFUN ("x-disown-selection-internal", Fx_disown_selection_internal, |
8c1a1077 PJ |
2132 | Sx_disown_selection_internal, 1, 2, 0, |
2133 | doc: /* If we own the selection SELECTION, disown it. | |
2134 | Disowning it means there is no such selection. */) | |
2135 | (selection, time) | |
ede4db72 RS |
2136 | Lisp_Object selection; |
2137 | Lisp_Object time; | |
2138 | { | |
ede4db72 RS |
2139 | Time timestamp; |
2140 | Atom selection_atom; | |
44d46531 | 2141 | struct selection_input_event event; |
3834c318 | 2142 | Display *display; |
5c3a351a | 2143 | struct x_display_info *dpyinfo; |
378c33ca | 2144 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2145 | |
703e0710 | 2146 | check_x (); |
378c33ca GM |
2147 | display = FRAME_X_DISPLAY (sf); |
2148 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
b7826503 | 2149 | CHECK_SYMBOL (selection); |
ede4db72 | 2150 | if (NILP (time)) |
7da64e5c | 2151 | timestamp = last_event_timestamp; |
ede4db72 RS |
2152 | else |
2153 | timestamp = cons_to_long (time); | |
2154 | ||
2155 | if (NILP (assq_no_quit (selection, Vselection_alist))) | |
2156 | return Qnil; /* Don't disown the selection when we're not the owner. */ | |
2157 | ||
5c3a351a | 2158 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection); |
ede4db72 RS |
2159 | |
2160 | BLOCK_INPUT; | |
2161 | XSetSelectionOwner (display, selection_atom, None, timestamp); | |
2162 | UNBLOCK_INPUT; | |
2163 | ||
eb8c3be9 | 2164 | /* It doesn't seem to be guaranteed that a SelectionClear event will be |
ede4db72 RS |
2165 | generated for a window which owns the selection when that window sets |
2166 | the selection owner to None. The NCD server does, the MIT Sun4 server | |
2167 | doesn't. So we synthesize one; this means we might get two, but | |
2168 | that's ok, because the second one won't have any effect. */ | |
8d47f8c4 RS |
2169 | SELECTION_EVENT_DISPLAY (&event) = display; |
2170 | SELECTION_EVENT_SELECTION (&event) = selection_atom; | |
2171 | SELECTION_EVENT_TIME (&event) = timestamp; | |
44d46531 | 2172 | x_handle_selection_clear ((struct input_event *) &event); |
ede4db72 RS |
2173 | |
2174 | return Qt; | |
2175 | } | |
2176 | ||
a87ed99c RS |
2177 | /* Get rid of all the selections in buffer BUFFER. |
2178 | This is used when we kill a buffer. */ | |
2179 | ||
2180 | void | |
2181 | x_disown_buffer_selections (buffer) | |
2182 | Lisp_Object buffer; | |
2183 | { | |
2184 | Lisp_Object tail; | |
2185 | struct buffer *buf = XBUFFER (buffer); | |
2186 | ||
8e713be6 | 2187 | for (tail = Vselection_alist; CONSP (tail); tail = XCDR (tail)) |
a87ed99c RS |
2188 | { |
2189 | Lisp_Object elt, value; | |
8e713be6 KR |
2190 | elt = XCAR (tail); |
2191 | value = XCDR (elt); | |
2192 | if (CONSP (value) && MARKERP (XCAR (value)) | |
2193 | && XMARKER (XCAR (value))->buffer == buf) | |
2194 | Fx_disown_selection_internal (XCAR (elt), Qnil); | |
a87ed99c RS |
2195 | } |
2196 | } | |
ede4db72 RS |
2197 | |
2198 | DEFUN ("x-selection-owner-p", Fx_selection_owner_p, Sx_selection_owner_p, | |
8c1a1077 PJ |
2199 | 0, 1, 0, |
2200 | doc: /* Whether the current Emacs process owns the given X Selection. | |
2201 | The arg should be the name of the selection in question, typically one of | |
2202 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2203 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2204 | For convenience, the symbol nil is the same as `PRIMARY', | |
2205 | and t is the same as `SECONDARY'. */) | |
2206 | (selection) | |
ede4db72 RS |
2207 | Lisp_Object selection; |
2208 | { | |
703e0710 | 2209 | check_x (); |
b7826503 | 2210 | CHECK_SYMBOL (selection); |
ede4db72 RS |
2211 | if (EQ (selection, Qnil)) selection = QPRIMARY; |
2212 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
1b65481e | 2213 | |
ede4db72 RS |
2214 | if (NILP (Fassq (selection, Vselection_alist))) |
2215 | return Qnil; | |
2216 | return Qt; | |
2217 | } | |
2218 | ||
2219 | DEFUN ("x-selection-exists-p", Fx_selection_exists_p, Sx_selection_exists_p, | |
8c1a1077 PJ |
2220 | 0, 1, 0, |
2221 | doc: /* Whether there is an owner for the given X Selection. | |
2222 | The arg should be the name of the selection in question, typically one of | |
2223 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2224 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2225 | For convenience, the symbol nil is the same as `PRIMARY', | |
2226 | and t is the same as `SECONDARY'. */) | |
2227 | (selection) | |
ede4db72 RS |
2228 | Lisp_Object selection; |
2229 | { | |
2230 | Window owner; | |
356ba514 | 2231 | Atom atom; |
3834c318 | 2232 | Display *dpy; |
378c33ca | 2233 | struct frame *sf = SELECTED_FRAME (); |
3834c318 | 2234 | |
b8c70430 | 2235 | /* It should be safe to call this before we have an X frame. */ |
378c33ca | 2236 | if (! FRAME_X_P (sf)) |
b8c70430 RS |
2237 | return Qnil; |
2238 | ||
378c33ca | 2239 | dpy = FRAME_X_DISPLAY (sf); |
b7826503 | 2240 | CHECK_SYMBOL (selection); |
ede4db72 RS |
2241 | if (!NILP (Fx_selection_owner_p (selection))) |
2242 | return Qt; | |
356ba514 RS |
2243 | if (EQ (selection, Qnil)) selection = QPRIMARY; |
2244 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
378c33ca | 2245 | atom = symbol_to_x_atom (FRAME_X_DISPLAY_INFO (sf), dpy, selection); |
356ba514 RS |
2246 | if (atom == 0) |
2247 | return Qnil; | |
ede4db72 | 2248 | BLOCK_INPUT; |
356ba514 | 2249 | owner = XGetSelectionOwner (dpy, atom); |
ede4db72 RS |
2250 | UNBLOCK_INPUT; |
2251 | return (owner ? Qt : Qnil); | |
2252 | } | |
2253 | ||
2254 | \f | |
2255 | #ifdef CUT_BUFFER_SUPPORT | |
2256 | ||
ede4db72 RS |
2257 | /* Ensure that all 8 cut buffers exist. ICCCM says we gotta... */ |
2258 | static void | |
2259 | initialize_cut_buffers (display, window) | |
2260 | Display *display; | |
2261 | Window window; | |
2262 | { | |
2263 | unsigned char *data = (unsigned char *) ""; | |
2264 | BLOCK_INPUT; | |
2265 | #define FROB(atom) XChangeProperty (display, window, atom, XA_STRING, 8, \ | |
2266 | PropModeAppend, data, 0) | |
2267 | FROB (XA_CUT_BUFFER0); | |
2268 | FROB (XA_CUT_BUFFER1); | |
2269 | FROB (XA_CUT_BUFFER2); | |
2270 | FROB (XA_CUT_BUFFER3); | |
2271 | FROB (XA_CUT_BUFFER4); | |
2272 | FROB (XA_CUT_BUFFER5); | |
2273 | FROB (XA_CUT_BUFFER6); | |
2274 | FROB (XA_CUT_BUFFER7); | |
2275 | #undef FROB | |
2276 | UNBLOCK_INPUT; | |
ede4db72 RS |
2277 | } |
2278 | ||
2279 | ||
b7826503 PJ |
2280 | #define CHECK_CUT_BUFFER(symbol) \ |
2281 | { CHECK_SYMBOL ((symbol)); \ | |
ede4db72 RS |
2282 | if (!EQ((symbol), QCUT_BUFFER0) && !EQ((symbol), QCUT_BUFFER1) \ |
2283 | && !EQ((symbol), QCUT_BUFFER2) && !EQ((symbol), QCUT_BUFFER3) \ | |
2284 | && !EQ((symbol), QCUT_BUFFER4) && !EQ((symbol), QCUT_BUFFER5) \ | |
2285 | && !EQ((symbol), QCUT_BUFFER6) && !EQ((symbol), QCUT_BUFFER7)) \ | |
2286 | Fsignal (Qerror, \ | |
a87ed99c | 2287 | Fcons (build_string ("doesn't name a cut buffer"), \ |
ede4db72 RS |
2288 | Fcons ((symbol), Qnil))); \ |
2289 | } | |
2290 | ||
a87ed99c | 2291 | DEFUN ("x-get-cut-buffer-internal", Fx_get_cut_buffer_internal, |
8c1a1077 PJ |
2292 | Sx_get_cut_buffer_internal, 1, 1, 0, |
2293 | doc: /* Returns the value of the named cut buffer (typically CUT_BUFFER0). */) | |
2294 | (buffer) | |
ede4db72 RS |
2295 | Lisp_Object buffer; |
2296 | { | |
3834c318 | 2297 | Window window; |
ede4db72 RS |
2298 | Atom buffer_atom; |
2299 | unsigned char *data; | |
2300 | int bytes; | |
2301 | Atom type; | |
2302 | int format; | |
2303 | unsigned long size; | |
2304 | Lisp_Object ret; | |
3834c318 | 2305 | Display *display; |
5c3a351a | 2306 | struct x_display_info *dpyinfo; |
378c33ca | 2307 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2308 | |
703e0710 | 2309 | check_x (); |
378c33ca GM |
2310 | display = FRAME_X_DISPLAY (sf); |
2311 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
3834c318 | 2312 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
b7826503 | 2313 | CHECK_CUT_BUFFER (buffer); |
5c3a351a | 2314 | buffer_atom = symbol_to_x_atom (dpyinfo, display, buffer); |
ede4db72 RS |
2315 | |
2316 | x_get_window_property (display, window, buffer_atom, &data, &bytes, | |
2317 | &type, &format, &size, 0); | |
22e00739 RS |
2318 | if (!data || !format) |
2319 | return Qnil; | |
1b65481e | 2320 | |
ede4db72 RS |
2321 | if (format != 8 || type != XA_STRING) |
2322 | Fsignal (Qerror, | |
2323 | Fcons (build_string ("cut buffer doesn't contain 8-bit data"), | |
d9c0d4a3 | 2324 | Fcons (x_atom_to_symbol (display, type), |
ede4db72 RS |
2325 | Fcons (make_number (format), Qnil)))); |
2326 | ||
3f6b532c | 2327 | ret = (bytes ? make_unibyte_string ((char *) data, bytes) : Qnil); |
4feb31b2 | 2328 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 2329 | calls xmalloc itself. */ |
4feb31b2 | 2330 | xfree (data); |
ede4db72 RS |
2331 | return ret; |
2332 | } | |
2333 | ||
2334 | ||
a87ed99c | 2335 | DEFUN ("x-store-cut-buffer-internal", Fx_store_cut_buffer_internal, |
8c1a1077 PJ |
2336 | Sx_store_cut_buffer_internal, 2, 2, 0, |
2337 | doc: /* Sets the value of the named cut buffer (typically CUT_BUFFER0). */) | |
2338 | (buffer, string) | |
ede4db72 RS |
2339 | Lisp_Object buffer, string; |
2340 | { | |
3834c318 | 2341 | Window window; |
ede4db72 RS |
2342 | Atom buffer_atom; |
2343 | unsigned char *data; | |
2344 | int bytes; | |
2345 | int bytes_remaining; | |
3834c318 RS |
2346 | int max_bytes; |
2347 | Display *display; | |
378c33ca | 2348 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2349 | |
703e0710 | 2350 | check_x (); |
378c33ca | 2351 | display = FRAME_X_DISPLAY (sf); |
3834c318 RS |
2352 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
2353 | ||
2354 | max_bytes = SELECTION_QUANTUM (display); | |
2355 | if (max_bytes > MAX_SELECTION_QUANTUM) | |
2356 | max_bytes = MAX_SELECTION_QUANTUM; | |
2357 | ||
b7826503 PJ |
2358 | CHECK_CUT_BUFFER (buffer); |
2359 | CHECK_STRING (string); | |
378c33ca | 2360 | buffer_atom = symbol_to_x_atom (FRAME_X_DISPLAY_INFO (sf), |
5c3a351a | 2361 | display, buffer); |
d5db4077 KR |
2362 | data = (unsigned char *) SDATA (string); |
2363 | bytes = SBYTES (string); | |
ede4db72 RS |
2364 | bytes_remaining = bytes; |
2365 | ||
378c33ca | 2366 | if (! FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized) |
04649dbc KH |
2367 | { |
2368 | initialize_cut_buffers (display, window); | |
378c33ca | 2369 | FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized = 1; |
04649dbc | 2370 | } |
ede4db72 RS |
2371 | |
2372 | BLOCK_INPUT; | |
10608c8c RS |
2373 | |
2374 | /* Don't mess up with an empty value. */ | |
2375 | if (!bytes_remaining) | |
2376 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
2377 | PropModeReplace, data, 0); | |
2378 | ||
ede4db72 RS |
2379 | while (bytes_remaining) |
2380 | { | |
2381 | int chunk = (bytes_remaining < max_bytes | |
2382 | ? bytes_remaining : max_bytes); | |
2383 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
2384 | (bytes_remaining == bytes | |
2385 | ? PropModeReplace | |
2386 | : PropModeAppend), | |
2387 | data, chunk); | |
2388 | data += chunk; | |
2389 | bytes_remaining -= chunk; | |
2390 | } | |
2391 | UNBLOCK_INPUT; | |
2392 | return string; | |
2393 | } | |
2394 | ||
2395 | ||
a87ed99c | 2396 | DEFUN ("x-rotate-cut-buffers-internal", Fx_rotate_cut_buffers_internal, |
8c1a1077 PJ |
2397 | Sx_rotate_cut_buffers_internal, 1, 1, 0, |
2398 | doc: /* Rotate the values of the cut buffers by the given number of step. | |
2399 | Positive means shift the values forward, negative means backward. */) | |
2400 | (n) | |
ede4db72 RS |
2401 | Lisp_Object n; |
2402 | { | |
3834c318 RS |
2403 | Window window; |
2404 | Atom props[8]; | |
2405 | Display *display; | |
378c33ca | 2406 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2407 | |
703e0710 | 2408 | check_x (); |
378c33ca | 2409 | display = FRAME_X_DISPLAY (sf); |
3834c318 | 2410 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
b7826503 | 2411 | CHECK_NUMBER (n); |
3834c318 RS |
2412 | if (XINT (n) == 0) |
2413 | return n; | |
378c33ca | 2414 | if (! FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized) |
04649dbc KH |
2415 | { |
2416 | initialize_cut_buffers (display, window); | |
378c33ca | 2417 | FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized = 1; |
04649dbc | 2418 | } |
3834c318 | 2419 | |
ede4db72 RS |
2420 | props[0] = XA_CUT_BUFFER0; |
2421 | props[1] = XA_CUT_BUFFER1; | |
2422 | props[2] = XA_CUT_BUFFER2; | |
2423 | props[3] = XA_CUT_BUFFER3; | |
2424 | props[4] = XA_CUT_BUFFER4; | |
2425 | props[5] = XA_CUT_BUFFER5; | |
2426 | props[6] = XA_CUT_BUFFER6; | |
2427 | props[7] = XA_CUT_BUFFER7; | |
2428 | BLOCK_INPUT; | |
2429 | XRotateWindowProperties (display, window, props, 8, XINT (n)); | |
2430 | UNBLOCK_INPUT; | |
2431 | return n; | |
2432 | } | |
2433 | ||
2434 | #endif | |
2435 | \f | |
1fb3821b JD |
2436 | /*********************************************************************** |
2437 | Drag and drop support | |
2438 | ***********************************************************************/ | |
2439 | /* Check that lisp values are of correct type for x_fill_property_data. | |
2440 | That is, number, string or a cons with two numbers (low and high 16 | |
2441 | bit parts of a 32 bit number). */ | |
2442 | ||
2443 | int | |
2444 | x_check_property_data (data) | |
2445 | Lisp_Object data; | |
2446 | { | |
2447 | Lisp_Object iter; | |
2448 | int size = 0; | |
2449 | ||
2450 | for (iter = data; CONSP (iter) && size != -1; iter = XCDR (iter), ++size) | |
2451 | { | |
2452 | Lisp_Object o = XCAR (iter); | |
2453 | ||
2454 | if (! NUMBERP (o) && ! STRINGP (o) && ! CONSP (o)) | |
2455 | size = -1; | |
2456 | else if (CONSP (o) && | |
2457 | (! NUMBERP (XCAR (o)) || ! NUMBERP (XCDR (o)))) | |
2458 | size = -1; | |
2459 | } | |
2460 | ||
2461 | return size; | |
2462 | } | |
2463 | ||
2464 | /* Convert lisp values to a C array. Values may be a number, a string | |
2465 | which is taken as an X atom name and converted to the atom value, or | |
2466 | a cons containing the two 16 bit parts of a 32 bit number. | |
2467 | ||
2468 | DPY is the display use to look up X atoms. | |
2469 | DATA is a Lisp list of values to be converted. | |
2470 | RET is the C array that contains the converted values. It is assumed | |
ff59904a | 2471 | it is big enough to hold all values. |
1fb3821b JD |
2472 | FORMAT is 8, 16 or 32 and gives the size in bits for each C value to |
2473 | be stored in RET. */ | |
2474 | ||
2475 | void | |
2476 | x_fill_property_data (dpy, data, ret, format) | |
2477 | Display *dpy; | |
2478 | Lisp_Object data; | |
2479 | void *ret; | |
2480 | int format; | |
2481 | { | |
2482 | CARD32 val; | |
2483 | CARD32 *d32 = (CARD32 *) ret; | |
2484 | CARD16 *d16 = (CARD16 *) ret; | |
2485 | CARD8 *d08 = (CARD8 *) ret; | |
2486 | Lisp_Object iter; | |
2487 | ||
2488 | for (iter = data; CONSP (iter); iter = XCDR (iter)) | |
2489 | { | |
2490 | Lisp_Object o = XCAR (iter); | |
2491 | ||
2492 | if (INTEGERP (o)) | |
2493 | val = (CARD32) XFASTINT (o); | |
2494 | else if (FLOATP (o)) | |
ff59904a | 2495 | val = (CARD32) XFLOAT_DATA (o); |
1fb3821b JD |
2496 | else if (CONSP (o)) |
2497 | val = (CARD32) cons_to_long (o); | |
2498 | else if (STRINGP (o)) | |
2499 | { | |
2500 | BLOCK_INPUT; | |
2501 | val = XInternAtom (dpy, (char *) SDATA (o), False); | |
2502 | UNBLOCK_INPUT; | |
2503 | } | |
2504 | else | |
2505 | error ("Wrong type, must be string, number or cons"); | |
2506 | ||
2507 | if (format == 8) | |
2508 | *d08++ = (CARD8) val; | |
2509 | else if (format == 16) | |
2510 | *d16++ = (CARD16) val; | |
2511 | else | |
2512 | *d32++ = val; | |
2513 | } | |
2514 | } | |
2515 | ||
2516 | /* Convert an array of C values to a Lisp list. | |
2517 | F is the frame to be used to look up X atoms if the TYPE is XA_ATOM. | |
2518 | DATA is a C array of values to be converted. | |
2519 | TYPE is the type of the data. Only XA_ATOM is special, it converts | |
2520 | each number in DATA to its corresponfing X atom as a symbol. | |
2521 | FORMAT is 8, 16 or 32 and gives the size in bits for each C value to | |
2522 | be stored in RET. | |
2523 | SIZE is the number of elements in DATA. | |
2524 | ||
2525 | Also see comment for selection_data_to_lisp_data above. */ | |
2526 | ||
2527 | Lisp_Object | |
2528 | x_property_data_to_lisp (f, data, type, format, size) | |
2529 | struct frame *f; | |
2530 | unsigned char *data; | |
2531 | Atom type; | |
2532 | int format; | |
2533 | unsigned long size; | |
2534 | { | |
2535 | return selection_data_to_lisp_data (FRAME_X_DISPLAY (f), | |
2536 | data, size*format/8, type, format); | |
2537 | } | |
2538 | ||
2539 | /* Get the mouse position frame relative coordinates. */ | |
2540 | ||
2541 | static void | |
2542 | mouse_position_for_drop (f, x, y) | |
2543 | FRAME_PTR f; | |
2544 | int *x; | |
2545 | int *y; | |
2546 | { | |
2547 | Window root, dummy_window; | |
2548 | int dummy; | |
2549 | ||
2550 | BLOCK_INPUT; | |
2551 | ||
2552 | XQueryPointer (FRAME_X_DISPLAY (f), | |
2553 | DefaultRootWindow (FRAME_X_DISPLAY (f)), | |
2554 | ||
2555 | /* The root window which contains the pointer. */ | |
2556 | &root, | |
2557 | ||
2558 | /* Window pointer is on, not used */ | |
2559 | &dummy_window, | |
2560 | ||
2561 | /* The position on that root window. */ | |
2562 | x, y, | |
2563 | ||
2564 | /* x/y in dummy_window coordinates, not used. */ | |
2565 | &dummy, &dummy, | |
2566 | ||
2567 | /* Modifier keys and pointer buttons, about which | |
2568 | we don't care. */ | |
2569 | (unsigned int *) &dummy); | |
2570 | ||
2571 | ||
2572 | /* Absolute to relative. */ | |
2573 | *x -= f->left_pos + FRAME_OUTER_TO_INNER_DIFF_X (f); | |
2574 | *y -= f->top_pos + FRAME_OUTER_TO_INNER_DIFF_Y (f); | |
2575 | ||
2576 | UNBLOCK_INPUT; | |
2577 | } | |
2578 | ||
2579 | DEFUN ("x-get-atom-name", Fx_get_atom_name, | |
2580 | Sx_get_atom_name, 1, 2, 0, | |
2581 | doc: /* Return the X atom name for VALUE as a string. | |
2582 | VALUE may be a number or a cons where the car is the upper 16 bits and | |
2583 | the cdr is the lower 16 bits of a 32 bit value. | |
2584 | Use the display for FRAME or the current frame if FRAME is not given or nil. | |
2585 | ||
2586 | If the value is 0 or the atom is not known, return the empty string. */) | |
2587 | (value, frame) | |
2588 | Lisp_Object value, frame; | |
2589 | { | |
2590 | struct frame *f = check_x_frame (frame); | |
2591 | char *name = 0; | |
2592 | Lisp_Object ret = Qnil; | |
2593 | int count; | |
2594 | Display *dpy = FRAME_X_DISPLAY (f); | |
2595 | Atom atom; | |
2596 | ||
2597 | if (INTEGERP (value)) | |
2598 | atom = (Atom) XUINT (value); | |
2599 | else if (FLOATP (value)) | |
ff59904a | 2600 | atom = (Atom) XFLOAT_DATA (value); |
1fb3821b JD |
2601 | else if (CONSP (value)) |
2602 | atom = (Atom) cons_to_long (value); | |
2603 | else | |
2604 | error ("Wrong type, value must be number or cons"); | |
2605 | ||
2606 | BLOCK_INPUT; | |
2607 | count = x_catch_errors (dpy); | |
2608 | ||
2609 | name = atom ? XGetAtomName (dpy, atom) : ""; | |
2610 | ||
2611 | if (! x_had_errors_p (dpy)) | |
2612 | ret = make_string (name, strlen (name)); | |
2613 | ||
2614 | x_uncatch_errors (dpy, count); | |
2615 | ||
2616 | if (atom && name) XFree (name); | |
2617 | if (NILP (ret)) ret = make_string ("", 0); | |
2618 | ||
2619 | UNBLOCK_INPUT; | |
2620 | ||
2621 | return ret; | |
2622 | } | |
2623 | ||
2624 | /* Convert an XClientMessageEvent to a Lisp event of type DRAG_N_DROP_EVENT. | |
2625 | TODO: Check if this client event really is a DND event? */ | |
2626 | ||
2627 | int | |
2628 | x_handle_dnd_message (f, event, dpyinfo, bufp) | |
2629 | struct frame *f; | |
2630 | XClientMessageEvent *event; | |
2631 | struct x_display_info *dpyinfo; | |
2632 | struct input_event *bufp; | |
2633 | { | |
2634 | Lisp_Object vec; | |
2635 | Lisp_Object frame; | |
2636 | unsigned long size = (8*sizeof (event->data))/event->format; | |
2637 | int x, y; | |
2638 | ||
2639 | XSETFRAME (frame, f); | |
2640 | ||
d2f14999 | 2641 | vec = Fmake_vector (make_number (4), Qnil); |
1fb3821b JD |
2642 | AREF (vec, 0) = SYMBOL_NAME (x_atom_to_symbol (FRAME_X_DISPLAY (f), |
2643 | event->message_type)); | |
2644 | AREF (vec, 1) = frame; | |
d2f14999 | 2645 | AREF (vec, 2) = make_number (event->format); |
1fb3821b JD |
2646 | AREF (vec, 3) = x_property_data_to_lisp (f, |
2647 | event->data.b, | |
2648 | event->message_type, | |
2649 | event->format, | |
2650 | size); | |
2651 | ||
2652 | mouse_position_for_drop (f, &x, &y); | |
2653 | bufp->kind = DRAG_N_DROP_EVENT; | |
2654 | bufp->frame_or_window = Fcons (frame, vec); | |
2655 | bufp->timestamp = CurrentTime; | |
2656 | bufp->x = make_number (x); | |
2657 | bufp->y = make_number (y); | |
2658 | bufp->arg = Qnil; | |
2659 | bufp->modifiers = 0; | |
2660 | ||
2661 | return 1; | |
2662 | } | |
2663 | ||
2664 | DEFUN ("x-send-client-message", Fx_send_client_event, | |
2665 | Sx_send_client_message, 6, 6, 0, | |
2666 | doc: /* Send a client message of MESSAGE-TYPE to window DEST on DISPLAY. | |
2667 | ||
2668 | For DISPLAY, specify either a frame or a display name (a string). | |
2669 | If DISPLAY is nil, that stands for the selected frame's display. | |
2670 | DEST may be a number, in which case it is a Window id. The value 0 may | |
2671 | be used to send to the root window of the DISPLAY. | |
2672 | If DEST is a cons, it is converted to a 32 bit number | |
2673 | with the high 16 bits from the car and the lower 16 bit from the cdr. That | |
2674 | number is then used as a window id. | |
2675 | If DEST is a frame the event is sent to the outer window of that frame. | |
2676 | Nil means the currently selected frame. | |
2677 | If DEST is the string "PointerWindow" the event is sent to the window that | |
2678 | contains the pointer. If DEST is the string "InputFocus" the event is | |
2679 | sent to the window that has the input focus. | |
2680 | FROM is the frame sending the event. Use nil for currently selected frame. | |
2681 | MESSAGE-TYPE is the name of an Atom as a string. | |
2682 | FORMAT must be one of 8, 16 or 32 and determines the size of the values in | |
2683 | bits. VALUES is a list of numbers, cons and/or strings containing the values | |
2684 | to send. If a value is a string, it is converted to an Atom and the value of | |
2685 | the Atom is sent. If a value is a cons, it is converted to a 32 bit number | |
2686 | with the high 16 bits from the car and the lower 16 bit from the cdr. | |
2687 | If more values than fits into the event is given, the excessive values | |
2688 | are ignored. */) | |
2689 | (display, dest, from, message_type, format, values) | |
2690 | Lisp_Object display, dest, from, message_type, format, values; | |
2691 | { | |
2692 | struct x_display_info *dpyinfo = check_x_display_info (display); | |
2693 | Window wdest; | |
2694 | XEvent event; | |
2695 | Lisp_Object cons; | |
2696 | int size; | |
2697 | struct frame *f = check_x_frame (from); | |
2698 | int count; | |
2699 | int to_root; | |
2700 | ||
2701 | CHECK_STRING (message_type); | |
2702 | CHECK_NUMBER (format); | |
2703 | CHECK_CONS (values); | |
2704 | ||
2705 | if (x_check_property_data (values) == -1) | |
2706 | error ("Bad data in VALUES, must be number, cons or string"); | |
2707 | ||
2708 | event.xclient.type = ClientMessage; | |
2709 | event.xclient.format = XFASTINT (format); | |
2710 | ||
2711 | if (event.xclient.format != 8 && event.xclient.format != 16 | |
2712 | && event.xclient.format != 32) | |
2713 | error ("FORMAT must be one of 8, 16 or 32"); | |
a0ecb2ac | 2714 | |
1fb3821b JD |
2715 | if (FRAMEP (dest) || NILP (dest)) |
2716 | { | |
2717 | struct frame *fdest = check_x_frame (dest); | |
2718 | wdest = FRAME_OUTER_WINDOW (fdest); | |
2719 | } | |
2720 | else if (STRINGP (dest)) | |
2721 | { | |
2722 | if (strcmp (SDATA (dest), "PointerWindow") == 0) | |
2723 | wdest = PointerWindow; | |
2724 | else if (strcmp (SDATA (dest), "InputFocus") == 0) | |
2725 | wdest = InputFocus; | |
2726 | else | |
2727 | error ("DEST as a string must be one of PointerWindow or InputFocus"); | |
2728 | } | |
2729 | else if (INTEGERP (dest)) | |
2730 | wdest = (Window) XFASTINT (dest); | |
2731 | else if (FLOATP (dest)) | |
ff59904a | 2732 | wdest = (Window) XFLOAT_DATA (dest); |
1fb3821b JD |
2733 | else if (CONSP (dest)) |
2734 | { | |
2735 | if (! NUMBERP (XCAR (dest)) || ! NUMBERP (XCDR (dest))) | |
2736 | error ("Both car and cdr for DEST must be numbers"); | |
2737 | else | |
2738 | wdest = (Window) cons_to_long (dest); | |
2739 | } | |
2740 | else | |
2741 | error ("DEST must be a frame, nil, string, number or cons"); | |
2742 | ||
2743 | if (wdest == 0) wdest = dpyinfo->root_window; | |
2744 | to_root = wdest == dpyinfo->root_window; | |
2745 | ||
2746 | for (cons = values, size = 0; CONSP (cons); cons = XCDR (cons), ++size) | |
2747 | ; | |
2748 | ||
2749 | BLOCK_INPUT; | |
2750 | ||
2751 | event.xclient.message_type | |
2752 | = XInternAtom (dpyinfo->display, SDATA (message_type), False); | |
2753 | event.xclient.display = dpyinfo->display; | |
2754 | ||
2755 | /* Some clients (metacity for example) expects sending window to be here | |
2756 | when sending to the root window. */ | |
2757 | event.xclient.window = to_root ? FRAME_OUTER_WINDOW (f) : wdest; | |
2758 | ||
2759 | memset (event.xclient.data.b, 0, sizeof (event.xclient.data.b)); | |
2760 | x_fill_property_data (dpyinfo->display, values, event.xclient.data.b, | |
2761 | event.xclient.format); | |
2762 | ||
2763 | /* If event mask is 0 the event is sent to the client that created | |
2764 | the destination window. But if we are sending to the root window, | |
2765 | there is no such client. Then we set the event mask to 0xffff. The | |
2766 | event then goes to clients selecting for events on the root window. */ | |
2767 | count = x_catch_errors (dpyinfo->display); | |
2768 | { | |
2769 | int propagate = to_root ? False : True; | |
2770 | unsigned mask = to_root ? 0xffff : 0; | |
2771 | XSendEvent (dpyinfo->display, wdest, propagate, mask, &event); | |
2772 | XFlush (dpyinfo->display); | |
2773 | } | |
2774 | x_uncatch_errors (dpyinfo->display, count); | |
2775 | UNBLOCK_INPUT; | |
2776 | ||
2777 | return Qnil; | |
2778 | } | |
2779 | ||
2780 | \f | |
ede4db72 RS |
2781 | void |
2782 | syms_of_xselect () | |
2783 | { | |
ede4db72 RS |
2784 | defsubr (&Sx_get_selection_internal); |
2785 | defsubr (&Sx_own_selection_internal); | |
2786 | defsubr (&Sx_disown_selection_internal); | |
2787 | defsubr (&Sx_selection_owner_p); | |
2788 | defsubr (&Sx_selection_exists_p); | |
2789 | ||
2790 | #ifdef CUT_BUFFER_SUPPORT | |
a87ed99c RS |
2791 | defsubr (&Sx_get_cut_buffer_internal); |
2792 | defsubr (&Sx_store_cut_buffer_internal); | |
2793 | defsubr (&Sx_rotate_cut_buffers_internal); | |
ede4db72 RS |
2794 | #endif |
2795 | ||
1fb3821b JD |
2796 | defsubr (&Sx_get_atom_name); |
2797 | defsubr (&Sx_send_client_message); | |
2798 | ||
ede4db72 RS |
2799 | reading_selection_reply = Fcons (Qnil, Qnil); |
2800 | staticpro (&reading_selection_reply); | |
2801 | reading_selection_window = 0; | |
2802 | reading_which_selection = 0; | |
2803 | ||
2804 | property_change_wait_list = 0; | |
2f65feb6 | 2805 | prop_location_identifier = 0; |
ede4db72 RS |
2806 | property_change_reply = Fcons (Qnil, Qnil); |
2807 | staticpro (&property_change_reply); | |
2808 | ||
2809 | Vselection_alist = Qnil; | |
2810 | staticpro (&Vselection_alist); | |
2811 | ||
2812 | DEFVAR_LISP ("selection-converter-alist", &Vselection_converter_alist, | |
8c1a1077 PJ |
2813 | doc: /* An alist associating X Windows selection-types with functions. |
2814 | These functions are called to convert the selection, with three args: | |
2815 | the name of the selection (typically `PRIMARY', `SECONDARY', or `CLIPBOARD'); | |
2816 | a desired type to which the selection should be converted; | |
2817 | and the local selection value (whatever was given to `x-own-selection'). | |
2818 | ||
2819 | The function should return the value to send to the X server | |
2820 | \(typically a string). A return value of nil | |
2821 | means that the conversion could not be done. | |
2822 | A return value which is the symbol `NULL' | |
2823 | means that a side-effect was executed, | |
2824 | and there is no meaningful selection value. */); | |
ede4db72 RS |
2825 | Vselection_converter_alist = Qnil; |
2826 | ||
c917a8de | 2827 | DEFVAR_LISP ("x-lost-selection-functions", &Vx_lost_selection_functions, |
8c1a1077 PJ |
2828 | doc: /* A list of functions to be called when Emacs loses an X selection. |
2829 | \(This happens when some other X client makes its own selection | |
2830 | or when a Lisp program explicitly clears the selection.) | |
2831 | The functions are called with one argument, the selection type | |
2832 | \(a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'). */); | |
c917a8de | 2833 | Vx_lost_selection_functions = Qnil; |
ede4db72 | 2834 | |
c917a8de | 2835 | DEFVAR_LISP ("x-sent-selection-functions", &Vx_sent_selection_functions, |
8c1a1077 PJ |
2836 | doc: /* A list of functions to be called when Emacs answers a selection request. |
2837 | The functions are called with four arguments: | |
2838 | - the selection name (typically `PRIMARY', `SECONDARY', or `CLIPBOARD'); | |
2839 | - the selection-type which Emacs was asked to convert the | |
2840 | selection into before sending (for example, `STRING' or `LENGTH'); | |
2841 | - a flag indicating success or failure for responding to the request. | |
2842 | We might have failed (and declined the request) for any number of reasons, | |
2843 | including being asked for a selection that we no longer own, or being asked | |
2844 | to convert into a type that we don't know about or that is inappropriate. | |
2845 | This hook doesn't let you change the behavior of Emacs's selection replies, | |
2846 | it merely informs you that they have happened. */); | |
c917a8de | 2847 | Vx_sent_selection_functions = Qnil; |
ede4db72 | 2848 | |
93e4ce1b | 2849 | DEFVAR_LISP ("selection-coding-system", &Vselection_coding_system, |
8c1a1077 PJ |
2850 | doc: /* Coding system for communicating with other X clients. |
2851 | When sending or receiving text via cut_buffer, selection, and clipboard, | |
2852 | the text is encoded or decoded by this coding system. | |
5a79ea57 EZ |
2853 | The default value is `compound-text-with-extensions'. */); |
2854 | Vselection_coding_system = intern ("compound-text-with-extensions"); | |
2584c9ec | 2855 | |
16cd5029 | 2856 | DEFVAR_LISP ("next-selection-coding-system", &Vnext_selection_coding_system, |
8c1a1077 PJ |
2857 | doc: /* Coding system for the next communication with other X clients. |
2858 | Usually, `selection-coding-system' is used for communicating with | |
f8f8d464 JB |
2859 | other X clients. But, if this variable is set, it is used for the |
2860 | next communication only. After the communication, this variable is | |
8c1a1077 | 2861 | set to nil. */); |
16cd5029 KH |
2862 | Vnext_selection_coding_system = Qnil; |
2863 | ||
ede4db72 | 2864 | DEFVAR_INT ("x-selection-timeout", &x_selection_timeout, |
8c1a1077 PJ |
2865 | doc: /* Number of milliseconds to wait for a selection reply. |
2866 | If the selection owner doesn't reply in this time, we give up. | |
2867 | A value of 0 means wait as long as necessary. This is initialized from the | |
2868 | \"*selectionTimeout\" resource. */); | |
ede4db72 RS |
2869 | x_selection_timeout = 0; |
2870 | ||
2871 | QPRIMARY = intern ("PRIMARY"); staticpro (&QPRIMARY); | |
2872 | QSECONDARY = intern ("SECONDARY"); staticpro (&QSECONDARY); | |
2873 | QSTRING = intern ("STRING"); staticpro (&QSTRING); | |
2874 | QINTEGER = intern ("INTEGER"); staticpro (&QINTEGER); | |
2875 | QCLIPBOARD = intern ("CLIPBOARD"); staticpro (&QCLIPBOARD); | |
2876 | QTIMESTAMP = intern ("TIMESTAMP"); staticpro (&QTIMESTAMP); | |
2877 | QTEXT = intern ("TEXT"); staticpro (&QTEXT); | |
e6c7c988 | 2878 | QCOMPOUND_TEXT = intern ("COMPOUND_TEXT"); staticpro (&QCOMPOUND_TEXT); |
5109c8dd | 2879 | QUTF8_STRING = intern ("UTF8_STRING"); staticpro (&QUTF8_STRING); |
ede4db72 RS |
2880 | QTIMESTAMP = intern ("TIMESTAMP"); staticpro (&QTIMESTAMP); |
2881 | QDELETE = intern ("DELETE"); staticpro (&QDELETE); | |
2882 | QMULTIPLE = intern ("MULTIPLE"); staticpro (&QMULTIPLE); | |
2883 | QINCR = intern ("INCR"); staticpro (&QINCR); | |
2884 | QEMACS_TMP = intern ("_EMACS_TMP_"); staticpro (&QEMACS_TMP); | |
2885 | QTARGETS = intern ("TARGETS"); staticpro (&QTARGETS); | |
2886 | QATOM = intern ("ATOM"); staticpro (&QATOM); | |
2887 | QATOM_PAIR = intern ("ATOM_PAIR"); staticpro (&QATOM_PAIR); | |
2888 | QNULL = intern ("NULL"); staticpro (&QNULL); | |
5a79ea57 EZ |
2889 | Qcompound_text_with_extensions = intern ("compound-text-with-extensions"); |
2890 | staticpro (&Qcompound_text_with_extensions); | |
ede4db72 RS |
2891 | |
2892 | #ifdef CUT_BUFFER_SUPPORT | |
2893 | QCUT_BUFFER0 = intern ("CUT_BUFFER0"); staticpro (&QCUT_BUFFER0); | |
2894 | QCUT_BUFFER1 = intern ("CUT_BUFFER1"); staticpro (&QCUT_BUFFER1); | |
2895 | QCUT_BUFFER2 = intern ("CUT_BUFFER2"); staticpro (&QCUT_BUFFER2); | |
2896 | QCUT_BUFFER3 = intern ("CUT_BUFFER3"); staticpro (&QCUT_BUFFER3); | |
2897 | QCUT_BUFFER4 = intern ("CUT_BUFFER4"); staticpro (&QCUT_BUFFER4); | |
2898 | QCUT_BUFFER5 = intern ("CUT_BUFFER5"); staticpro (&QCUT_BUFFER5); | |
2899 | QCUT_BUFFER6 = intern ("CUT_BUFFER6"); staticpro (&QCUT_BUFFER6); | |
2900 | QCUT_BUFFER7 = intern ("CUT_BUFFER7"); staticpro (&QCUT_BUFFER7); | |
2901 | #endif | |
2902 | ||
e57ad4d8 KH |
2903 | Qforeign_selection = intern ("foreign-selection"); |
2904 | staticpro (&Qforeign_selection); | |
ede4db72 | 2905 | } |
ab5796a9 MB |
2906 | |
2907 | /* arch-tag: 7c293b0f-9918-4f69-8ac7-03e142307236 | |
2908 | (do not change this comment) */ |