Commit | Line | Data |
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2408b3a1 | 1 | /* X Selection processing for Emacs. |
ab422c4d | 2 | Copyright (C) 1993-1997, 2000-2013 Free Software Foundation, Inc. |
ede4db72 RS |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
9ec0b715 | 6 | GNU Emacs is free software: you can redistribute it and/or modify |
ede4db72 | 7 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
8 | the Free Software Foundation, either version 3 of the License, or |
9 | (at your option) any later version. | |
ede4db72 RS |
10 | |
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 17 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
ede4db72 | 18 | |
c6c5df7f | 19 | |
ede4db72 RS |
20 | /* Rewritten by jwz */ |
21 | ||
18160b98 | 22 | #include <config.h> |
be44ca6c | 23 | #include <limits.h> |
5b698285 | 24 | #include <stdio.h> /* termhooks.h needs this */ |
678b3958 KS |
25 | |
26 | #ifdef HAVE_SYS_TYPES_H | |
27 | #include <sys/types.h> | |
28 | #endif | |
4004364e | 29 | |
678b3958 | 30 | #include <unistd.h> |
678b3958 | 31 | |
ede4db72 RS |
32 | #include "lisp.h" |
33 | #include "xterm.h" /* for all of the X includes */ | |
7da64e5c RS |
34 | #include "dispextern.h" /* frame.h seems to want this */ |
35 | #include "frame.h" /* Need this to get the X window of selected_frame */ | |
9ac0d9e0 | 36 | #include "blockinput.h" |
e5560ff7 | 37 | #include "character.h" |
5faa9b45 | 38 | #include "buffer.h" |
dfcf069d | 39 | #include "process.h" |
1fb3821b | 40 | #include "termhooks.h" |
dd0fe424 | 41 | #include "keyboard.h" |
1fb3821b JD |
42 | |
43 | #include <X11/Xproto.h> | |
7da64e5c | 44 | |
d9c0d4a3 | 45 | struct prop_location; |
e067f0c1 | 46 | struct selection_data; |
d9c0d4a3 | 47 | |
f57e2426 | 48 | static Lisp_Object x_atom_to_symbol (Display *dpy, Atom atom); |
a9f737ee CY |
49 | static Atom symbol_to_x_atom (struct x_display_info *, Lisp_Object); |
50 | static void x_own_selection (Lisp_Object, Lisp_Object, Lisp_Object); | |
51 | static Lisp_Object x_get_local_selection (Lisp_Object, Lisp_Object, int, | |
52 | struct x_display_info *); | |
f57e2426 J |
53 | static void x_decline_selection_request (struct input_event *); |
54 | static Lisp_Object x_selection_request_lisp_error (Lisp_Object); | |
55 | static Lisp_Object queue_selection_requests_unwind (Lisp_Object); | |
f57e2426 | 56 | static Lisp_Object x_catch_errors_unwind (Lisp_Object); |
e067f0c1 CY |
57 | static void x_reply_selection_request (struct input_event *, struct x_display_info *); |
58 | static int x_convert_selection (struct input_event *, Lisp_Object, Lisp_Object, | |
a9f737ee | 59 | Atom, int, struct x_display_info *); |
f57e2426 J |
60 | static int waiting_for_other_props_on_window (Display *, Window); |
61 | static struct prop_location *expect_property_change (Display *, Window, | |
62 | Atom, int); | |
63 | static void unexpect_property_change (struct prop_location *); | |
64 | static Lisp_Object wait_for_property_change_unwind (Lisp_Object); | |
65 | static void wait_for_property_change (struct prop_location *); | |
a9f737ee CY |
66 | static Lisp_Object x_get_foreign_selection (Lisp_Object, Lisp_Object, |
67 | Lisp_Object, Lisp_Object); | |
f57e2426 J |
68 | static Lisp_Object x_get_window_property_as_lisp_data (Display *, |
69 | Window, Atom, | |
70 | Lisp_Object, Atom); | |
eec47d6b DN |
71 | static Lisp_Object selection_data_to_lisp_data (Display *, |
72 | const unsigned char *, | |
864d7ce7 | 73 | ptrdiff_t, Atom, int); |
f57e2426 J |
74 | static void lisp_data_to_selection_data (Display *, Lisp_Object, |
75 | unsigned char **, Atom *, | |
864d7ce7 | 76 | ptrdiff_t *, int *, int *); |
f57e2426 | 77 | static Lisp_Object clean_local_selection_data (Lisp_Object); |
d9c0d4a3 GM |
78 | |
79 | /* Printing traces to stderr. */ | |
80 | ||
81 | #ifdef TRACE_SELECTION | |
82 | #define TRACE0(fmt) \ | |
d311d28c | 83 | fprintf (stderr, "%"pMd": " fmt "\n", (printmax_t) getpid ()) |
d9c0d4a3 | 84 | #define TRACE1(fmt, a0) \ |
d311d28c | 85 | fprintf (stderr, "%"pMd": " fmt "\n", (printmax_t) getpid (), a0) |
d9c0d4a3 | 86 | #define TRACE2(fmt, a0, a1) \ |
d311d28c | 87 | fprintf (stderr, "%"pMd": " fmt "\n", (printmax_t) getpid (), a0, a1) |
9c3ad9e1 | 88 | #define TRACE3(fmt, a0, a1, a2) \ |
d311d28c | 89 | fprintf (stderr, "%"pMd": " fmt "\n", (printmax_t) getpid (), a0, a1, a2) |
d9c0d4a3 GM |
90 | #else |
91 | #define TRACE0(fmt) (void) 0 | |
92 | #define TRACE1(fmt, a0) (void) 0 | |
93 | #define TRACE2(fmt, a0, a1) (void) 0 | |
94 | #endif | |
95 | ||
96 | ||
955cbe7b | 97 | static Lisp_Object QSECONDARY, QSTRING, QINTEGER, QCLIPBOARD, QTIMESTAMP, |
ede4db72 | 98 | QTEXT, QDELETE, QMULTIPLE, QINCR, QEMACS_TMP, QTARGETS, QATOM, QNULL, |
a9f737ee | 99 | QATOM_PAIR, QCLIPBOARD_MANAGER, QSAVE_TARGETS; |
ede4db72 | 100 | |
955cbe7b PE |
101 | static Lisp_Object QCOMPOUND_TEXT; /* This is a type of selection. */ |
102 | static Lisp_Object QUTF8_STRING; /* This is a type of selection. */ | |
e6c7c988 | 103 | |
955cbe7b | 104 | static Lisp_Object Qcompound_text_with_extensions; |
fbbe0ace | 105 | |
e57ad4d8 | 106 | static Lisp_Object Qforeign_selection; |
cd18e7e3 | 107 | static Lisp_Object Qx_lost_selection_functions, Qx_sent_selection_functions; |
e57ad4d8 | 108 | |
864d7ce7 PE |
109 | /* Bytes needed to represent 'long' data. This is as per libX11; it |
110 | is not necessarily sizeof (long). */ | |
111 | #define X_LONG_SIZE 4 | |
112 | ||
252c5ee1 PE |
113 | /* Extreme 'short' and 'long' values suitable for libX11. */ |
114 | #define X_SHRT_MAX 0x7fff | |
115 | #define X_SHRT_MIN (-1 - X_SHRT_MAX) | |
116 | #define X_LONG_MAX 0x7fffffff | |
117 | #define X_LONG_MIN (-1 - X_LONG_MAX) | |
2e621251 | 118 | #define X_ULONG_MAX 0xffffffffUL |
864d7ce7 | 119 | |
ede4db72 RS |
120 | /* If this is a smaller number than the max-request-size of the display, |
121 | emacs will use INCR selection transfer when the selection is larger | |
122 | than this. The max-request-size is usually around 64k, so if you want | |
1b65481e | 123 | emacs to use incremental selection transfers when the selection is |
ede4db72 | 124 | smaller than that, set this. I added this mostly for debugging the |
864d7ce7 PE |
125 | incremental transfer stuff, but it might improve server performance. |
126 | ||
127 | This value cannot exceed INT_MAX / max (X_LONG_SIZE, sizeof (long)) | |
128 | because it is multiplied by X_LONG_SIZE and by sizeof (long) in | |
129 | subscript calculations. Similarly for PTRDIFF_MAX - 1 or SIZE_MAX | |
130 | - 1 in place of INT_MAX. */ | |
131 | #define MAX_SELECTION_QUANTUM \ | |
132 | ((int) min (0xFFFFFF, (min (INT_MAX, min (PTRDIFF_MAX, SIZE_MAX) - 1) \ | |
133 | / max (X_LONG_SIZE, sizeof (long))))) | |
ede4db72 | 134 | |
864d7ce7 PE |
135 | static int |
136 | selection_quantum (Display *display) | |
137 | { | |
138 | long mrs = XMaxRequestSize (display); | |
139 | return (mrs < MAX_SELECTION_QUANTUM / X_LONG_SIZE + 25 | |
140 | ? (mrs - 25) * X_LONG_SIZE | |
141 | : MAX_SELECTION_QUANTUM); | |
142 | } | |
ede4db72 | 143 | |
a9f737ee CY |
144 | #define LOCAL_SELECTION(selection_symbol,dpyinfo) \ |
145 | assq_no_quit (selection_symbol, dpyinfo->terminal->Vselection_alist) | |
dd0fe424 KS |
146 | |
147 | \f | |
678b3958 KS |
148 | /* Define a queue to save up SELECTION_REQUEST_EVENT events for later |
149 | handling. */ | |
dd0fe424 KS |
150 | |
151 | struct selection_event_queue | |
152 | { | |
153 | struct input_event event; | |
154 | struct selection_event_queue *next; | |
155 | }; | |
156 | ||
157 | static struct selection_event_queue *selection_queue; | |
158 | ||
678b3958 | 159 | /* Nonzero means queue up SELECTION_REQUEST_EVENT events. */ |
dd0fe424 KS |
160 | |
161 | static int x_queue_selection_requests; | |
162 | ||
678b3958 | 163 | /* Queue up an SELECTION_REQUEST_EVENT *EVENT, to be processed later. */ |
dd0fe424 KS |
164 | |
165 | static void | |
971de7fb | 166 | x_queue_event (struct input_event *event) |
dd0fe424 KS |
167 | { |
168 | struct selection_event_queue *queue_tmp; | |
169 | ||
678b3958 KS |
170 | /* Don't queue repeated requests. |
171 | This only happens for large requests which uses the incremental protocol. */ | |
dd0fe424 KS |
172 | for (queue_tmp = selection_queue; queue_tmp; queue_tmp = queue_tmp->next) |
173 | { | |
72af86bd | 174 | if (!memcmp (&queue_tmp->event, event, sizeof (*event))) |
dd0fe424 | 175 | { |
6f04d126 | 176 | TRACE1 ("DECLINE DUP SELECTION EVENT %p", queue_tmp); |
678b3958 | 177 | x_decline_selection_request (event); |
dd0fe424 KS |
178 | return; |
179 | } | |
180 | } | |
181 | ||
38182d90 | 182 | queue_tmp = xmalloc (sizeof *queue_tmp); |
23f86fce DA |
183 | TRACE1 ("QUEUE SELECTION EVENT %p", queue_tmp); |
184 | queue_tmp->event = *event; | |
185 | queue_tmp->next = selection_queue; | |
186 | selection_queue = queue_tmp; | |
dd0fe424 KS |
187 | } |
188 | ||
678b3958 | 189 | /* Start queuing SELECTION_REQUEST_EVENT events. */ |
dd0fe424 KS |
190 | |
191 | static void | |
971de7fb | 192 | x_start_queuing_selection_requests (void) |
dd0fe424 KS |
193 | { |
194 | if (x_queue_selection_requests) | |
1088b922 | 195 | emacs_abort (); |
dd0fe424 KS |
196 | |
197 | x_queue_selection_requests++; | |
198 | TRACE1 ("x_start_queuing_selection_requests %d", x_queue_selection_requests); | |
199 | } | |
200 | ||
678b3958 | 201 | /* Stop queuing SELECTION_REQUEST_EVENT events. */ |
dd0fe424 KS |
202 | |
203 | static void | |
971de7fb | 204 | x_stop_queuing_selection_requests (void) |
dd0fe424 KS |
205 | { |
206 | TRACE1 ("x_stop_queuing_selection_requests %d", x_queue_selection_requests); | |
207 | --x_queue_selection_requests; | |
208 | ||
209 | /* Take all the queued events and put them back | |
210 | so that they get processed afresh. */ | |
211 | ||
212 | while (selection_queue != NULL) | |
213 | { | |
214 | struct selection_event_queue *queue_tmp = selection_queue; | |
6f04d126 | 215 | TRACE1 ("RESTORE SELECTION EVENT %p", queue_tmp); |
dd0fe424 KS |
216 | kbd_buffer_unget_event (&queue_tmp->event); |
217 | selection_queue = queue_tmp->next; | |
98c6f1e3 | 218 | xfree (queue_tmp); |
dd0fe424 KS |
219 | } |
220 | } | |
221 | \f | |
222 | ||
1b65481e | 223 | /* This converts a Lisp symbol to a server Atom, avoiding a server |
ede4db72 RS |
224 | roundtrip whenever possible. */ |
225 | ||
226 | static Atom | |
a9f737ee | 227 | symbol_to_x_atom (struct x_display_info *dpyinfo, Lisp_Object sym) |
ede4db72 RS |
228 | { |
229 | Atom val; | |
230 | if (NILP (sym)) return 0; | |
231 | if (EQ (sym, QPRIMARY)) return XA_PRIMARY; | |
232 | if (EQ (sym, QSECONDARY)) return XA_SECONDARY; | |
233 | if (EQ (sym, QSTRING)) return XA_STRING; | |
234 | if (EQ (sym, QINTEGER)) return XA_INTEGER; | |
235 | if (EQ (sym, QATOM)) return XA_ATOM; | |
5c3a351a RS |
236 | if (EQ (sym, QCLIPBOARD)) return dpyinfo->Xatom_CLIPBOARD; |
237 | if (EQ (sym, QTIMESTAMP)) return dpyinfo->Xatom_TIMESTAMP; | |
238 | if (EQ (sym, QTEXT)) return dpyinfo->Xatom_TEXT; | |
e6c7c988 | 239 | if (EQ (sym, QCOMPOUND_TEXT)) return dpyinfo->Xatom_COMPOUND_TEXT; |
5109c8dd | 240 | if (EQ (sym, QUTF8_STRING)) return dpyinfo->Xatom_UTF8_STRING; |
5c3a351a RS |
241 | if (EQ (sym, QDELETE)) return dpyinfo->Xatom_DELETE; |
242 | if (EQ (sym, QMULTIPLE)) return dpyinfo->Xatom_MULTIPLE; | |
243 | if (EQ (sym, QINCR)) return dpyinfo->Xatom_INCR; | |
244 | if (EQ (sym, QEMACS_TMP)) return dpyinfo->Xatom_EMACS_TMP; | |
245 | if (EQ (sym, QTARGETS)) return dpyinfo->Xatom_TARGETS; | |
246 | if (EQ (sym, QNULL)) return dpyinfo->Xatom_NULL; | |
1088b922 | 247 | if (!SYMBOLP (sym)) emacs_abort (); |
ede4db72 | 248 | |
51b59d79 | 249 | TRACE1 (" XInternAtom %s", SSDATA (SYMBOL_NAME (sym))); |
4d7e6e51 | 250 | block_input (); |
a9f737ee | 251 | val = XInternAtom (dpyinfo->display, SSDATA (SYMBOL_NAME (sym)), False); |
4d7e6e51 | 252 | unblock_input (); |
ede4db72 RS |
253 | return val; |
254 | } | |
255 | ||
256 | ||
257 | /* This converts a server Atom to a Lisp symbol, avoiding server roundtrips | |
258 | and calls to intern whenever possible. */ | |
259 | ||
260 | static Lisp_Object | |
971de7fb | 261 | x_atom_to_symbol (Display *dpy, Atom atom) |
ede4db72 | 262 | { |
d9c0d4a3 | 263 | struct x_display_info *dpyinfo; |
ede4db72 RS |
264 | char *str; |
265 | Lisp_Object val; | |
1b65481e | 266 | |
d9c0d4a3 GM |
267 | if (! atom) |
268 | return Qnil; | |
1b65481e | 269 | |
7da64e5c RS |
270 | switch (atom) |
271 | { | |
272 | case XA_PRIMARY: | |
273 | return QPRIMARY; | |
274 | case XA_SECONDARY: | |
275 | return QSECONDARY; | |
276 | case XA_STRING: | |
277 | return QSTRING; | |
278 | case XA_INTEGER: | |
279 | return QINTEGER; | |
280 | case XA_ATOM: | |
281 | return QATOM; | |
7da64e5c RS |
282 | } |
283 | ||
d9c0d4a3 | 284 | dpyinfo = x_display_info_for_display (dpy); |
a9f737ee CY |
285 | if (dpyinfo == NULL) |
286 | return Qnil; | |
5c3a351a | 287 | if (atom == dpyinfo->Xatom_CLIPBOARD) |
7da64e5c | 288 | return QCLIPBOARD; |
5c3a351a | 289 | if (atom == dpyinfo->Xatom_TIMESTAMP) |
7da64e5c | 290 | return QTIMESTAMP; |
5c3a351a | 291 | if (atom == dpyinfo->Xatom_TEXT) |
7da64e5c | 292 | return QTEXT; |
e6c7c988 KH |
293 | if (atom == dpyinfo->Xatom_COMPOUND_TEXT) |
294 | return QCOMPOUND_TEXT; | |
5109c8dd KH |
295 | if (atom == dpyinfo->Xatom_UTF8_STRING) |
296 | return QUTF8_STRING; | |
5c3a351a | 297 | if (atom == dpyinfo->Xatom_DELETE) |
7da64e5c | 298 | return QDELETE; |
5c3a351a | 299 | if (atom == dpyinfo->Xatom_MULTIPLE) |
7da64e5c | 300 | return QMULTIPLE; |
5c3a351a | 301 | if (atom == dpyinfo->Xatom_INCR) |
7da64e5c | 302 | return QINCR; |
5c3a351a | 303 | if (atom == dpyinfo->Xatom_EMACS_TMP) |
7da64e5c | 304 | return QEMACS_TMP; |
5c3a351a | 305 | if (atom == dpyinfo->Xatom_TARGETS) |
7da64e5c | 306 | return QTARGETS; |
5c3a351a | 307 | if (atom == dpyinfo->Xatom_NULL) |
7da64e5c | 308 | return QNULL; |
ede4db72 | 309 | |
4d7e6e51 | 310 | block_input (); |
d9c0d4a3 | 311 | str = XGetAtomName (dpy, atom); |
4d7e6e51 | 312 | unblock_input (); |
d9c0d4a3 | 313 | TRACE1 ("XGetAtomName --> %s", str); |
ede4db72 RS |
314 | if (! str) return Qnil; |
315 | val = intern (str); | |
4d7e6e51 | 316 | block_input (); |
0158abbc | 317 | /* This was allocated by Xlib, so use XFree. */ |
ede4db72 | 318 | XFree (str); |
4d7e6e51 | 319 | unblock_input (); |
ede4db72 RS |
320 | return val; |
321 | } | |
8a89415e | 322 | \f |
ede4db72 | 323 | /* Do protocol to assert ourself as a selection owner. |
a9f737ee | 324 | FRAME shall be the owner; it must be a valid X frame. |
1b65481e | 325 | Update the Vselection_alist so that we can reply to later requests for |
ede4db72 RS |
326 | our selection. */ |
327 | ||
328 | static void | |
a9f737ee CY |
329 | x_own_selection (Lisp_Object selection_name, Lisp_Object selection_value, |
330 | Lisp_Object frame) | |
ede4db72 | 331 | { |
a9f737ee CY |
332 | struct frame *f = XFRAME (frame); |
333 | Window selecting_window = FRAME_X_WINDOW (f); | |
334 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); | |
335 | Display *display = dpyinfo->display; | |
aa0daa9f | 336 | Time timestamp = last_event_timestamp; |
a9f737ee | 337 | Atom selection_atom = symbol_to_x_atom (dpyinfo, selection_name); |
ede4db72 | 338 | |
4d7e6e51 | 339 | block_input (); |
9ba8e10d | 340 | x_catch_errors (display); |
aa0daa9f | 341 | XSetSelectionOwner (display, selection_atom, selecting_window, timestamp); |
a7b24d46 | 342 | x_check_errors (display, "Can't set selection: %s"); |
4545fa20 | 343 | x_uncatch_errors (); |
4d7e6e51 | 344 | unblock_input (); |
ede4db72 RS |
345 | |
346 | /* Now update the local cache */ | |
347 | { | |
ede4db72 RS |
348 | Lisp_Object selection_data; |
349 | Lisp_Object prev_value; | |
350 | ||
16041401 | 351 | selection_data = list4 (selection_name, selection_value, |
be44ca6c | 352 | INTEGER_TO_CONS (timestamp), frame); |
a9f737ee | 353 | prev_value = LOCAL_SELECTION (selection_name, dpyinfo); |
ede4db72 | 354 | |
3f22b86f PE |
355 | tset_selection_alist |
356 | (dpyinfo->terminal, | |
357 | Fcons (selection_data, dpyinfo->terminal->Vselection_alist)); | |
ede4db72 | 358 | |
a9f737ee CY |
359 | /* If we already owned the selection, remove the old selection |
360 | data. Don't use Fdelq as that may QUIT. */ | |
ede4db72 RS |
361 | if (!NILP (prev_value)) |
362 | { | |
a9f737ee CY |
363 | /* We know it's not the CAR, so it's easy. */ |
364 | Lisp_Object rest = dpyinfo->terminal->Vselection_alist; | |
365 | for (; CONSP (rest); rest = XCDR (rest)) | |
8e713be6 | 366 | if (EQ (prev_value, Fcar (XCDR (rest)))) |
ede4db72 | 367 | { |
a9f737ee | 368 | XSETCDR (rest, XCDR (XCDR (rest))); |
ede4db72 RS |
369 | break; |
370 | } | |
371 | } | |
372 | } | |
373 | } | |
374 | \f | |
375 | /* Given a selection-name and desired type, look up our local copy of | |
376 | the selection value and convert it to the type. | |
2e621251 PE |
377 | Return nil, a string, a vector, a symbol, an integer, or a cons |
378 | that CONS_TO_INTEGER could plausibly handle. | |
5109c8dd KH |
379 | This function is used both for remote requests (LOCAL_REQUEST is zero) |
380 | and for local x-get-selection-internal (LOCAL_REQUEST is nonzero). | |
ede4db72 RS |
381 | |
382 | This calls random Lisp code, and may signal or gc. */ | |
383 | ||
384 | static Lisp_Object | |
a9f737ee CY |
385 | x_get_local_selection (Lisp_Object selection_symbol, Lisp_Object target_type, |
386 | int local_request, struct x_display_info *dpyinfo) | |
ede4db72 RS |
387 | { |
388 | Lisp_Object local_value; | |
6abdaa4a | 389 | Lisp_Object handler_fn, value, check; |
ede4db72 | 390 | |
a9f737ee | 391 | local_value = LOCAL_SELECTION (selection_symbol, dpyinfo); |
ede4db72 RS |
392 | |
393 | if (NILP (local_value)) return Qnil; | |
394 | ||
a9f737ee | 395 | /* TIMESTAMP is a special case. */ |
ede4db72 RS |
396 | if (EQ (target_type, QTIMESTAMP)) |
397 | { | |
398 | handler_fn = Qnil; | |
8e713be6 | 399 | value = XCAR (XCDR (XCDR (local_value))); |
ede4db72 | 400 | } |
ede4db72 RS |
401 | else |
402 | { | |
403 | /* Don't allow a quit within the converter. | |
404 | When the user types C-g, he would be surprised | |
405 | if by luck it came during a converter. */ | |
d311d28c | 406 | ptrdiff_t count = SPECPDL_INDEX (); |
ede4db72 RS |
407 | specbind (Qinhibit_quit, Qt); |
408 | ||
b7826503 | 409 | CHECK_SYMBOL (target_type); |
ede4db72 | 410 | handler_fn = Fcdr (Fassq (target_type, Vselection_converter_alist)); |
4f06187f RS |
411 | /* gcpro is not needed here since nothing but HANDLER_FN |
412 | is live, and that ought to be a symbol. */ | |
413 | ||
1eb4d468 RS |
414 | if (!NILP (handler_fn)) |
415 | value = call3 (handler_fn, | |
5109c8dd | 416 | selection_symbol, (local_request ? Qnil : target_type), |
8e713be6 | 417 | XCAR (XCDR (local_value))); |
1eb4d468 RS |
418 | else |
419 | value = Qnil; | |
ede4db72 RS |
420 | unbind_to (count, Qnil); |
421 | } | |
422 | ||
423 | /* Make sure this value is of a type that we could transmit | |
424 | to another X client. */ | |
a87ed99c | 425 | |
ede4db72 RS |
426 | check = value; |
427 | if (CONSP (value) | |
8e713be6 | 428 | && SYMBOLP (XCAR (value))) |
8e713be6 | 429 | check = XCDR (value); |
1b65481e | 430 | |
ede4db72 RS |
431 | if (STRINGP (check) |
432 | || VECTORP (check) | |
433 | || SYMBOLP (check) | |
7da64e5c | 434 | || INTEGERP (check) |
ede4db72 RS |
435 | || NILP (value)) |
436 | return value; | |
be44ca6c | 437 | /* Check for a value that CONS_TO_INTEGER could handle. */ |
ede4db72 | 438 | else if (CONSP (check) |
8e713be6 KR |
439 | && INTEGERP (XCAR (check)) |
440 | && (INTEGERP (XCDR (check)) | |
ede4db72 | 441 | || |
8e713be6 KR |
442 | (CONSP (XCDR (check)) |
443 | && INTEGERP (XCAR (XCDR (check))) | |
444 | && NILP (XCDR (XCDR (check)))))) | |
ede4db72 | 445 | return value; |
4d30ce50 KS |
446 | |
447 | signal_error ("Invalid data returned by selection-conversion function", | |
448 | list2 (handler_fn, value)); | |
ede4db72 RS |
449 | } |
450 | \f | |
451 | /* Subroutines of x_reply_selection_request. */ | |
452 | ||
5d0ba25b | 453 | /* Send a SelectionNotify event to the requestor with property=None, |
ede4db72 RS |
454 | meaning we were unable to do what they wanted. */ |
455 | ||
456 | static void | |
971de7fb | 457 | x_decline_selection_request (struct input_event *event) |
ede4db72 | 458 | { |
65969f63 CY |
459 | XEvent reply_base; |
460 | XSelectionEvent *reply = &(reply_base.xselection); | |
1b65481e | 461 | |
65969f63 CY |
462 | reply->type = SelectionNotify; |
463 | reply->display = SELECTION_EVENT_DISPLAY (event); | |
464 | reply->requestor = SELECTION_EVENT_REQUESTOR (event); | |
465 | reply->selection = SELECTION_EVENT_SELECTION (event); | |
466 | reply->time = SELECTION_EVENT_TIME (event); | |
467 | reply->target = SELECTION_EVENT_TARGET (event); | |
468 | reply->property = None; | |
ede4db72 | 469 | |
d9c0d4a3 GM |
470 | /* The reason for the error may be that the receiver has |
471 | died in the meantime. Handle that case. */ | |
4d7e6e51 | 472 | block_input (); |
65969f63 CY |
473 | x_catch_errors (reply->display); |
474 | XSendEvent (reply->display, reply->requestor, False, 0L, &reply_base); | |
475 | XFlush (reply->display); | |
4545fa20 | 476 | x_uncatch_errors (); |
4d7e6e51 | 477 | unblock_input (); |
ede4db72 RS |
478 | } |
479 | ||
480 | /* This is the selection request currently being processed. | |
481 | It is set to zero when the request is fully processed. */ | |
482 | static struct input_event *x_selection_current_request; | |
483 | ||
ca29f2b8 GM |
484 | /* Display info in x_selection_request. */ |
485 | ||
486 | static struct x_display_info *selection_request_dpyinfo; | |
487 | ||
e067f0c1 CY |
488 | /* Raw selection data, for sending to a requestor window. */ |
489 | ||
490 | struct selection_data | |
491 | { | |
492 | unsigned char *data; | |
864d7ce7 | 493 | ptrdiff_t size; |
e067f0c1 CY |
494 | int format; |
495 | Atom type; | |
496 | int nofree; | |
497 | Atom property; | |
498 | /* This can be set to non-NULL during x_reply_selection_request, if | |
499 | the selection is waiting for an INCR transfer to complete. Don't | |
500 | free these; that's done by unexpect_property_change. */ | |
501 | struct prop_location *wait_object; | |
502 | struct selection_data *next; | |
503 | }; | |
504 | ||
505 | /* Linked list of the above (in support of MULTIPLE targets). */ | |
506 | ||
0196f88a | 507 | static struct selection_data *converted_selections; |
e067f0c1 CY |
508 | |
509 | /* "Data" to send a requestor for a failed MULTIPLE subtarget. */ | |
0196f88a | 510 | static Atom conversion_fail_tag; |
e067f0c1 | 511 | |
ede4db72 | 512 | /* Used as an unwind-protect clause so that, if a selection-converter signals |
fa463103 | 513 | an error, we tell the requestor that we were unable to do what they wanted |
ede4db72 RS |
514 | before we throw to top-level or go into the debugger or whatever. */ |
515 | ||
516 | static Lisp_Object | |
971de7fb | 517 | x_selection_request_lisp_error (Lisp_Object ignore) |
ede4db72 | 518 | { |
e067f0c1 CY |
519 | struct selection_data *cs, *next; |
520 | ||
521 | for (cs = converted_selections; cs; cs = next) | |
522 | { | |
523 | next = cs->next; | |
524 | if (cs->nofree == 0 && cs->data) | |
525 | xfree (cs->data); | |
526 | xfree (cs); | |
527 | } | |
528 | converted_selections = NULL; | |
529 | ||
ca29f2b8 GM |
530 | if (x_selection_current_request != 0 |
531 | && selection_request_dpyinfo->display) | |
ede4db72 RS |
532 | x_decline_selection_request (x_selection_current_request); |
533 | return Qnil; | |
534 | } | |
c525d842 CY |
535 | |
536 | static Lisp_Object | |
971de7fb | 537 | x_catch_errors_unwind (Lisp_Object dummy) |
c525d842 | 538 | { |
4d7e6e51 | 539 | block_input (); |
c525d842 | 540 | x_uncatch_errors (); |
4d7e6e51 | 541 | unblock_input (); |
6f10509c | 542 | return Qnil; |
c525d842 | 543 | } |
ede4db72 | 544 | \f |
d1f21a66 RS |
545 | |
546 | /* This stuff is so that INCR selections are reentrant (that is, so we can | |
547 | be servicing multiple INCR selection requests simultaneously.) I haven't | |
548 | actually tested that yet. */ | |
549 | ||
550 | /* Keep a list of the property changes that are awaited. */ | |
551 | ||
552 | struct prop_location | |
553 | { | |
554 | int identifier; | |
555 | Display *display; | |
556 | Window window; | |
557 | Atom property; | |
558 | int desired_state; | |
559 | int arrived; | |
560 | struct prop_location *next; | |
561 | }; | |
562 | ||
971de7fb DN |
563 | static struct prop_location *expect_property_change (Display *display, Window window, Atom property, int state); |
564 | static void wait_for_property_change (struct prop_location *location); | |
565 | static void unexpect_property_change (struct prop_location *location); | |
566 | static int waiting_for_other_props_on_window (Display *display, Window window); | |
d1f21a66 RS |
567 | |
568 | static int prop_location_identifier; | |
569 | ||
570 | static Lisp_Object property_change_reply; | |
571 | ||
572 | static struct prop_location *property_change_reply_object; | |
573 | ||
574 | static struct prop_location *property_change_wait_list; | |
55b2d45d RS |
575 | |
576 | static Lisp_Object | |
971de7fb | 577 | queue_selection_requests_unwind (Lisp_Object tem) |
55b2d45d | 578 | { |
dd0fe424 | 579 | x_stop_queuing_selection_requests (); |
ab552306 | 580 | return Qnil; |
55b2d45d RS |
581 | } |
582 | ||
d1f21a66 | 583 | \f |
e067f0c1 | 584 | /* Send the reply to a selection request event EVENT. */ |
ede4db72 | 585 | |
46d47e41 | 586 | #ifdef TRACE_SELECTION |
ca7af97a | 587 | static int x_reply_selection_request_cnt; |
46d47e41 GM |
588 | #endif /* TRACE_SELECTION */ |
589 | ||
ede4db72 | 590 | static void |
5e617bc2 JB |
591 | x_reply_selection_request (struct input_event *event, |
592 | struct x_display_info *dpyinfo) | |
ede4db72 | 593 | { |
65969f63 CY |
594 | XEvent reply_base; |
595 | XSelectionEvent *reply = &(reply_base.xselection); | |
ede4db72 | 596 | Display *display = SELECTION_EVENT_DISPLAY (event); |
5d0ba25b | 597 | Window window = SELECTION_EVENT_REQUESTOR (event); |
864d7ce7 PE |
598 | ptrdiff_t bytes_remaining; |
599 | int max_bytes = selection_quantum (display); | |
d311d28c | 600 | ptrdiff_t count = SPECPDL_INDEX (); |
e067f0c1 | 601 | struct selection_data *cs; |
ede4db72 | 602 | |
65969f63 CY |
603 | reply->type = SelectionNotify; |
604 | reply->display = display; | |
605 | reply->requestor = window; | |
606 | reply->selection = SELECTION_EVENT_SELECTION (event); | |
607 | reply->time = SELECTION_EVENT_TIME (event); | |
608 | reply->target = SELECTION_EVENT_TARGET (event); | |
609 | reply->property = SELECTION_EVENT_PROPERTY (event); | |
610 | if (reply->property == None) | |
611 | reply->property = reply->target; | |
ede4db72 | 612 | |
4d7e6e51 | 613 | block_input (); |
c525d842 CY |
614 | /* The protected block contains wait_for_property_change, which can |
615 | run random lisp code (process handlers) or signal. Therefore, we | |
616 | put the x_uncatch_errors call in an unwind. */ | |
617 | record_unwind_protect (x_catch_errors_unwind, Qnil); | |
9ba8e10d | 618 | x_catch_errors (display); |
ede4db72 | 619 | |
e067f0c1 CY |
620 | /* Loop over converted selections, storing them in the requested |
621 | properties. If data is large, only store the first N bytes | |
622 | (section 2.7.2 of ICCCM). Note that we store the data for a | |
623 | MULTIPLE request in the opposite order; the ICCM says only that | |
624 | the conversion itself must be done in the same order. */ | |
625 | for (cs = converted_selections; cs; cs = cs->next) | |
626 | { | |
a9f737ee CY |
627 | if (cs->property == None) |
628 | continue; | |
629 | ||
864d7ce7 PE |
630 | bytes_remaining = cs->size; |
631 | bytes_remaining *= cs->format >> 3; | |
a9f737ee | 632 | if (bytes_remaining <= max_bytes) |
e067f0c1 | 633 | { |
a9f737ee | 634 | /* Send all the data at once, with minimal handshaking. */ |
864d7ce7 | 635 | TRACE1 ("Sending all %"pD"d bytes", bytes_remaining); |
a9f737ee CY |
636 | XChangeProperty (display, window, cs->property, |
637 | cs->type, cs->format, PropModeReplace, | |
638 | cs->data, cs->size); | |
639 | } | |
640 | else | |
641 | { | |
642 | /* Send an INCR tag to initiate incremental transfer. */ | |
252c5ee1 | 643 | long value[1]; |
a9f737ee | 644 | |
864d7ce7 | 645 | TRACE2 ("Start sending %"pD"d bytes incrementally (%s)", |
a9f737ee CY |
646 | bytes_remaining, XGetAtomName (display, cs->property)); |
647 | cs->wait_object | |
648 | = expect_property_change (display, window, cs->property, | |
649 | PropertyDelete); | |
650 | ||
651 | /* XChangeProperty expects an array of long even if long is | |
652 | more than 32 bits. */ | |
252c5ee1 | 653 | value[0] = min (bytes_remaining, X_LONG_MAX); |
a9f737ee CY |
654 | XChangeProperty (display, window, cs->property, |
655 | dpyinfo->Xatom_INCR, 32, PropModeReplace, | |
656 | (unsigned char *) value, 1); | |
657 | XSelectInput (display, window, PropertyChangeMask); | |
e067f0c1 CY |
658 | } |
659 | } | |
660 | ||
661 | /* Now issue the SelectionNotify event. */ | |
662 | XSendEvent (display, window, False, 0L, &reply_base); | |
663 | XFlush (display); | |
664 | ||
9c3ad9e1 JD |
665 | #ifdef TRACE_SELECTION |
666 | { | |
65969f63 CY |
667 | char *sel = XGetAtomName (display, reply->selection); |
668 | char *tgt = XGetAtomName (display, reply->target); | |
e067f0c1 CY |
669 | TRACE3 ("Sent SelectionNotify: %s, target %s (%d)", |
670 | sel, tgt, ++x_reply_selection_request_cnt); | |
9c3ad9e1 JD |
671 | if (sel) XFree (sel); |
672 | if (tgt) XFree (tgt); | |
673 | } | |
674 | #endif /* TRACE_SELECTION */ | |
675 | ||
e067f0c1 CY |
676 | /* Finish sending the rest of each of the INCR values. This should |
677 | be improved; there's a chance of deadlock if more than one | |
678 | subtarget in a MULTIPLE selection requires an INCR transfer, and | |
679 | the requestor and Emacs loop waiting on different transfers. */ | |
680 | for (cs = converted_selections; cs; cs = cs->next) | |
681 | if (cs->wait_object) | |
e22cf39c | 682 | { |
e067f0c1 CY |
683 | int format_bytes = cs->format / 8; |
684 | int had_errors = x_had_errors_p (display); | |
4d7e6e51 | 685 | unblock_input (); |
1b65481e | 686 | |
864d7ce7 PE |
687 | bytes_remaining = cs->size; |
688 | bytes_remaining *= format_bytes; | |
ede4db72 | 689 | |
fa463103 | 690 | /* Wait for the requestor to ack by deleting the property. |
e067f0c1 CY |
691 | This can run Lisp code (process handlers) or signal. */ |
692 | if (! had_errors) | |
693 | { | |
694 | TRACE1 ("Waiting for ACK (deletion of %s)", | |
695 | XGetAtomName (display, cs->property)); | |
696 | wait_for_property_change (cs->wait_object); | |
697 | } | |
698 | else | |
699 | unexpect_property_change (cs->wait_object); | |
ede4db72 | 700 | |
e067f0c1 CY |
701 | while (bytes_remaining) |
702 | { | |
703 | int i = ((bytes_remaining < max_bytes) | |
704 | ? bytes_remaining | |
705 | : max_bytes) / format_bytes; | |
4d7e6e51 | 706 | block_input (); |
e067f0c1 CY |
707 | |
708 | cs->wait_object | |
709 | = expect_property_change (display, window, cs->property, | |
710 | PropertyDelete); | |
711 | ||
712 | TRACE1 ("Sending increment of %d elements", i); | |
713 | TRACE1 ("Set %s to increment data", | |
714 | XGetAtomName (display, cs->property)); | |
715 | ||
716 | /* Append the next chunk of data to the property. */ | |
717 | XChangeProperty (display, window, cs->property, | |
718 | cs->type, cs->format, PropModeAppend, | |
719 | cs->data, i); | |
720 | bytes_remaining -= i * format_bytes; | |
a9f737ee CY |
721 | cs->data += i * ((cs->format == 32) ? sizeof (long) |
722 | : format_bytes); | |
e067f0c1 CY |
723 | XFlush (display); |
724 | had_errors = x_had_errors_p (display); | |
4d7e6e51 | 725 | unblock_input (); |
ede4db72 | 726 | |
e067f0c1 | 727 | if (had_errors) break; |
afe1529d | 728 | |
fa463103 | 729 | /* Wait for the requestor to ack this chunk by deleting |
e067f0c1 CY |
730 | the property. This can run Lisp code or signal. */ |
731 | TRACE1 ("Waiting for increment ACK (deletion of %s)", | |
732 | XGetAtomName (display, cs->property)); | |
733 | wait_for_property_change (cs->wait_object); | |
734 | } | |
1b65481e | 735 | |
e067f0c1 | 736 | /* Now write a zero-length chunk to the property to tell the |
fa463103 | 737 | requestor that we're done. */ |
4d7e6e51 | 738 | block_input (); |
e067f0c1 CY |
739 | if (! waiting_for_other_props_on_window (display, window)) |
740 | XSelectInput (display, window, 0L); | |
741 | ||
742 | TRACE1 ("Set %s to a 0-length chunk to indicate EOF", | |
743 | XGetAtomName (display, cs->property)); | |
744 | XChangeProperty (display, window, cs->property, | |
745 | cs->type, cs->format, PropModeReplace, | |
746 | cs->data, 0); | |
747 | TRACE0 ("Done sending incrementally"); | |
748 | } | |
afe1529d | 749 | |
ceabd272 | 750 | /* rms, 2003-01-03: I think I have fixed this bug. */ |
47a6ac17 GM |
751 | /* The window we're communicating with may have been deleted |
752 | in the meantime (that's a real situation from a bug report). | |
753 | In this case, there may be events in the event queue still | |
fac916bf | 754 | referring to the deleted window, and we'll get a BadWindow error |
47a6ac17 GM |
755 | in XTread_socket when processing the events. I don't have |
756 | an idea how to fix that. gerd, 2001-01-98. */ | |
844fc085 JD |
757 | /* 2004-09-10: XSync and UNBLOCK so that possible protocol errors are |
758 | delivered before uncatch errors. */ | |
759 | XSync (display, False); | |
4d7e6e51 | 760 | unblock_input (); |
0608b1a0 JD |
761 | |
762 | /* GTK queues events in addition to the queue in Xlib. So we | |
763 | UNBLOCK to enter the event loop and get possible errors delivered, | |
764 | and then BLOCK again because x_uncatch_errors requires it. */ | |
4d7e6e51 | 765 | block_input (); |
c525d842 | 766 | /* This calls x_uncatch_errors. */ |
9ba8e10d | 767 | unbind_to (count, Qnil); |
4d7e6e51 | 768 | unblock_input (); |
ede4db72 RS |
769 | } |
770 | \f | |
771 | /* Handle a SelectionRequest event EVENT. | |
772 | This is called from keyboard.c when such an event is found in the queue. */ | |
773 | ||
dd0fe424 | 774 | static void |
971de7fb | 775 | x_handle_selection_request (struct input_event *event) |
ede4db72 | 776 | { |
e067f0c1 | 777 | struct gcpro gcpro1, gcpro2; |
ede4db72 | 778 | Time local_selection_time; |
e067f0c1 CY |
779 | |
780 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
781 | struct x_display_info *dpyinfo = x_display_info_for_display (display); | |
e067f0c1 CY |
782 | Atom selection = SELECTION_EVENT_SELECTION (event); |
783 | Lisp_Object selection_symbol = x_atom_to_symbol (display, selection); | |
784 | Atom target = SELECTION_EVENT_TARGET (event); | |
785 | Lisp_Object target_symbol = x_atom_to_symbol (display, target); | |
786 | Atom property = SELECTION_EVENT_PROPERTY (event); | |
a9f737ee | 787 | Lisp_Object local_selection_data; |
e067f0c1 | 788 | int success = 0; |
d311d28c | 789 | ptrdiff_t count = SPECPDL_INDEX (); |
e067f0c1 | 790 | GCPRO2 (local_selection_data, target_symbol); |
ede4db72 | 791 | |
a9f737ee CY |
792 | if (!dpyinfo) goto DONE; |
793 | ||
794 | local_selection_data = LOCAL_SELECTION (selection_symbol, dpyinfo); | |
795 | ||
e067f0c1 CY |
796 | /* Decline if we don't own any selections. */ |
797 | if (NILP (local_selection_data)) goto DONE; | |
ede4db72 | 798 | |
e067f0c1 | 799 | /* Decline requests issued prior to our acquiring the selection. */ |
be44ca6c PE |
800 | CONS_TO_INTEGER (XCAR (XCDR (XCDR (local_selection_data))), |
801 | Time, local_selection_time); | |
ede4db72 | 802 | if (SELECTION_EVENT_TIME (event) != CurrentTime |
7da64e5c | 803 | && local_selection_time > SELECTION_EVENT_TIME (event)) |
e067f0c1 | 804 | goto DONE; |
ede4db72 | 805 | |
ede4db72 | 806 | x_selection_current_request = event; |
ca29f2b8 | 807 | selection_request_dpyinfo = dpyinfo; |
ede4db72 RS |
808 | record_unwind_protect (x_selection_request_lisp_error, Qnil); |
809 | ||
e067f0c1 CY |
810 | /* We might be able to handle nested x_handle_selection_requests, |
811 | but this is difficult to test, and seems unimportant. */ | |
812 | x_start_queuing_selection_requests (); | |
813 | record_unwind_protect (queue_selection_requests_unwind, Qnil); | |
ede4db72 | 814 | |
757c9275 CY |
815 | TRACE2 ("x_handle_selection_request: selection=%s, target=%s", |
816 | SDATA (SYMBOL_NAME (selection_symbol)), | |
817 | SDATA (SYMBOL_NAME (target_symbol))); | |
818 | ||
ede4db72 | 819 | if (EQ (target_symbol, QMULTIPLE)) |
e067f0c1 CY |
820 | { |
821 | /* For MULTIPLE targets, the event property names a list of atom | |
822 | pairs; the first atom names a target and the second names a | |
823 | non-None property. */ | |
824 | Window requestor = SELECTION_EVENT_REQUESTOR (event); | |
825 | Lisp_Object multprop; | |
864d7ce7 | 826 | ptrdiff_t j, nselections; |
e067f0c1 CY |
827 | |
828 | if (property == None) goto DONE; | |
a9f737ee CY |
829 | multprop |
830 | = x_get_window_property_as_lisp_data (display, requestor, property, | |
831 | QMULTIPLE, selection); | |
e067f0c1 | 832 | |
757c9275 | 833 | if (!VECTORP (multprop) || ASIZE (multprop) % 2) |
e067f0c1 CY |
834 | goto DONE; |
835 | ||
836 | nselections = ASIZE (multprop) / 2; | |
837 | /* Perform conversions. This can signal. */ | |
838 | for (j = 0; j < nselections; j++) | |
839 | { | |
e067f0c1 | 840 | Lisp_Object subtarget = AREF (multprop, 2*j); |
a9f737ee | 841 | Atom subproperty = symbol_to_x_atom (dpyinfo, |
e067f0c1 CY |
842 | AREF (multprop, 2*j+1)); |
843 | ||
844 | if (subproperty != None) | |
845 | x_convert_selection (event, selection_symbol, subtarget, | |
a9f737ee | 846 | subproperty, 1, dpyinfo); |
e067f0c1 CY |
847 | } |
848 | success = 1; | |
849 | } | |
850 | else | |
851 | { | |
852 | if (property == None) | |
853 | property = SELECTION_EVENT_TARGET (event); | |
854 | success = x_convert_selection (event, selection_symbol, | |
a9f737ee CY |
855 | target_symbol, property, |
856 | 0, dpyinfo); | |
e067f0c1 | 857 | } |
1b65481e | 858 | |
e067f0c1 | 859 | DONE: |
1b65481e | 860 | |
e067f0c1 CY |
861 | if (success) |
862 | x_reply_selection_request (event, dpyinfo); | |
863 | else | |
864 | x_decline_selection_request (event); | |
865 | x_selection_current_request = 0; | |
1b65481e | 866 | |
e067f0c1 CY |
867 | /* Run the `x-sent-selection-functions' abnormal hook. */ |
868 | if (!NILP (Vx_sent_selection_functions) | |
869 | && !EQ (Vx_sent_selection_functions, Qunbound)) | |
ede4db72 | 870 | { |
e067f0c1 | 871 | Lisp_Object args[4]; |
cd18e7e3 | 872 | args[0] = Qx_sent_selection_functions; |
e067f0c1 CY |
873 | args[1] = selection_symbol; |
874 | args[2] = target_symbol; | |
875 | args[3] = success ? Qt : Qnil; | |
876 | Frun_hook_with_args (4, args); | |
877 | } | |
866f8518 | 878 | |
e067f0c1 CY |
879 | unbind_to (count, Qnil); |
880 | UNGCPRO; | |
881 | } | |
1b65481e | 882 | |
e067f0c1 CY |
883 | /* Perform the requested selection conversion, and write the data to |
884 | the converted_selections linked list, where it can be accessed by | |
885 | x_reply_selection_request. If FOR_MULTIPLE is non-zero, write out | |
886 | the data even if conversion fails, using conversion_fail_tag. | |
ede4db72 | 887 | |
e067f0c1 | 888 | Return 0 if the selection failed to convert, 1 otherwise. */ |
ede4db72 | 889 | |
e067f0c1 | 890 | static int |
a9f737ee CY |
891 | x_convert_selection (struct input_event *event, Lisp_Object selection_symbol, |
892 | Lisp_Object target_symbol, Atom property, | |
893 | int for_multiple, struct x_display_info *dpyinfo) | |
e067f0c1 CY |
894 | { |
895 | struct gcpro gcpro1; | |
896 | Lisp_Object lisp_selection; | |
897 | struct selection_data *cs; | |
898 | GCPRO1 (lisp_selection); | |
866f8518 | 899 | |
e067f0c1 | 900 | lisp_selection |
a9f737ee CY |
901 | = x_get_local_selection (selection_symbol, target_symbol, |
902 | 0, dpyinfo); | |
ede4db72 | 903 | |
e067f0c1 CY |
904 | /* A nil return value means we can't perform the conversion. */ |
905 | if (NILP (lisp_selection) | |
906 | || (CONSP (lisp_selection) && NILP (XCDR (lisp_selection)))) | |
907 | { | |
908 | if (for_multiple) | |
909 | { | |
38182d90 | 910 | cs = xmalloc (sizeof *cs); |
e067f0c1 CY |
911 | cs->data = (unsigned char *) &conversion_fail_tag; |
912 | cs->size = 1; | |
913 | cs->format = 32; | |
914 | cs->type = XA_ATOM; | |
915 | cs->nofree = 1; | |
916 | cs->property = property; | |
917 | cs->wait_object = NULL; | |
918 | cs->next = converted_selections; | |
919 | converted_selections = cs; | |
920 | } | |
ede4db72 | 921 | |
18480f8f SM |
922 | UNGCPRO; |
923 | return 0; | |
e067f0c1 | 924 | } |
4f06187f | 925 | |
e067f0c1 | 926 | /* Otherwise, record the converted selection to binary. */ |
38182d90 | 927 | cs = xmalloc (sizeof *cs); |
9be2fd9b | 928 | cs->data = NULL; |
e067f0c1 CY |
929 | cs->nofree = 1; |
930 | cs->property = property; | |
931 | cs->wait_object = NULL; | |
932 | cs->next = converted_selections; | |
933 | converted_selections = cs; | |
934 | lisp_data_to_selection_data (SELECTION_EVENT_DISPLAY (event), | |
935 | lisp_selection, | |
936 | &(cs->data), &(cs->type), | |
937 | &(cs->size), &(cs->format), | |
938 | &(cs->nofree)); | |
18480f8f SM |
939 | UNGCPRO; |
940 | return 1; | |
ede4db72 RS |
941 | } |
942 | \f | |
e18e6130 | 943 | /* Handle a SelectionClear event EVENT, which indicates that some |
ede4db72 RS |
944 | client cleared out our previously asserted selection. |
945 | This is called from keyboard.c when such an event is found in the queue. */ | |
946 | ||
dd0fe424 | 947 | static void |
971de7fb | 948 | x_handle_selection_clear (struct input_event *event) |
ede4db72 RS |
949 | { |
950 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
951 | Atom selection = SELECTION_EVENT_SELECTION (event); | |
952 | Time changed_owner_time = SELECTION_EVENT_TIME (event); | |
1b65481e | 953 | |
ede4db72 RS |
954 | Lisp_Object selection_symbol, local_selection_data; |
955 | Time local_selection_time; | |
5c3a351a | 956 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
a9f737ee | 957 | Lisp_Object Vselection_alist; |
e18e6130 | 958 | |
dd0fe424 KS |
959 | TRACE0 ("x_handle_selection_clear"); |
960 | ||
a9f737ee | 961 | if (!dpyinfo) return; |
16041401 | 962 | |
d9c0d4a3 | 963 | selection_symbol = x_atom_to_symbol (display, selection); |
a9f737ee | 964 | local_selection_data = LOCAL_SELECTION (selection_symbol, dpyinfo); |
ede4db72 RS |
965 | |
966 | /* Well, we already believe that we don't own it, so that's just fine. */ | |
967 | if (NILP (local_selection_data)) return; | |
968 | ||
be44ca6c PE |
969 | CONS_TO_INTEGER (XCAR (XCDR (XCDR (local_selection_data))), |
970 | Time, local_selection_time); | |
ede4db72 | 971 | |
a9f737ee CY |
972 | /* We have reasserted the selection since this SelectionClear was |
973 | generated, so we can disregard it. */ | |
ede4db72 RS |
974 | if (changed_owner_time != CurrentTime |
975 | && local_selection_time > changed_owner_time) | |
976 | return; | |
977 | ||
a9f737ee CY |
978 | /* Otherwise, really clear. Don't use Fdelq as that may QUIT;. */ |
979 | Vselection_alist = dpyinfo->terminal->Vselection_alist; | |
980 | if (EQ (local_selection_data, CAR (Vselection_alist))) | |
981 | Vselection_alist = XCDR (Vselection_alist); | |
ede4db72 RS |
982 | else |
983 | { | |
984 | Lisp_Object rest; | |
99784d63 | 985 | for (rest = Vselection_alist; CONSP (rest); rest = XCDR (rest)) |
a9f737ee | 986 | if (EQ (local_selection_data, CAR (XCDR (rest)))) |
ede4db72 | 987 | { |
a9f737ee | 988 | XSETCDR (rest, XCDR (XCDR (rest))); |
ede4db72 RS |
989 | break; |
990 | } | |
991 | } | |
3f22b86f | 992 | tset_selection_alist (dpyinfo->terminal, Vselection_alist); |
ede4db72 | 993 | |
a9f737ee | 994 | /* Run the `x-lost-selection-functions' abnormal hook. */ |
ede4db72 | 995 | { |
a9f737ee | 996 | Lisp_Object args[2]; |
cd18e7e3 | 997 | args[0] = Qx_lost_selection_functions; |
a9f737ee CY |
998 | args[1] = selection_symbol; |
999 | Frun_hook_with_args (2, args); | |
ede4db72 | 1000 | } |
a9f737ee CY |
1001 | |
1002 | prepare_menu_bars (); | |
1003 | redisplay_preserve_echo_area (20); | |
ede4db72 RS |
1004 | } |
1005 | ||
dd0fe424 | 1006 | void |
971de7fb | 1007 | x_handle_selection_event (struct input_event *event) |
dd0fe424 KS |
1008 | { |
1009 | TRACE0 ("x_handle_selection_event"); | |
e067f0c1 | 1010 | if (event->kind != SELECTION_REQUEST_EVENT) |
dd0fe424 | 1011 | x_handle_selection_clear (event); |
e067f0c1 CY |
1012 | else if (x_queue_selection_requests) |
1013 | x_queue_event (event); | |
1014 | else | |
1015 | x_handle_selection_request (event); | |
dd0fe424 KS |
1016 | } |
1017 | ||
1018 | ||
118bd841 RS |
1019 | /* Clear all selections that were made from frame F. |
1020 | We do this when about to delete a frame. */ | |
1021 | ||
1022 | void | |
971de7fb | 1023 | x_clear_frame_selections (FRAME_PTR f) |
118bd841 RS |
1024 | { |
1025 | Lisp_Object frame; | |
1026 | Lisp_Object rest; | |
a9f737ee CY |
1027 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
1028 | struct terminal *t = dpyinfo->terminal; | |
118bd841 | 1029 | |
90851bbe | 1030 | XSETFRAME (frame, f); |
118bd841 | 1031 | |
0d199f9c | 1032 | /* Delete elements from the beginning of Vselection_alist. */ |
a9f737ee CY |
1033 | while (CONSP (t->Vselection_alist) |
1034 | && EQ (frame, XCAR (XCDR (XCDR (XCDR (XCAR (t->Vselection_alist))))))) | |
0d199f9c | 1035 | { |
a9f737ee CY |
1036 | /* Run the `x-lost-selection-functions' abnormal hook. */ |
1037 | Lisp_Object args[2]; | |
cd18e7e3 | 1038 | args[0] = Qx_lost_selection_functions; |
a9f737ee CY |
1039 | args[1] = Fcar (Fcar (t->Vselection_alist)); |
1040 | Frun_hook_with_args (2, args); | |
0d199f9c | 1041 | |
3f22b86f | 1042 | tset_selection_alist (t, XCDR (t->Vselection_alist)); |
0d199f9c RS |
1043 | } |
1044 | ||
1045 | /* Delete elements after the beginning of Vselection_alist. */ | |
a9f737ee CY |
1046 | for (rest = t->Vselection_alist; CONSP (rest); rest = XCDR (rest)) |
1047 | if (CONSP (XCDR (rest)) | |
1048 | && EQ (frame, XCAR (XCDR (XCDR (XCDR (XCAR (XCDR (rest)))))))) | |
118bd841 | 1049 | { |
a9f737ee | 1050 | Lisp_Object args[2]; |
cd18e7e3 | 1051 | args[0] = Qx_lost_selection_functions; |
a9f737ee CY |
1052 | args[1] = XCAR (XCAR (XCDR (rest))); |
1053 | Frun_hook_with_args (2, args); | |
1054 | XSETCDR (rest, XCDR (XCDR (rest))); | |
118bd841 RS |
1055 | break; |
1056 | } | |
1057 | } | |
ede4db72 | 1058 | \f |
ede4db72 RS |
1059 | /* Nonzero if any properties for DISPLAY and WINDOW |
1060 | are on the list of what we are waiting for. */ | |
1061 | ||
1062 | static int | |
971de7fb | 1063 | waiting_for_other_props_on_window (Display *display, Window window) |
ede4db72 RS |
1064 | { |
1065 | struct prop_location *rest = property_change_wait_list; | |
1066 | while (rest) | |
1067 | if (rest->display == display && rest->window == window) | |
1068 | return 1; | |
1069 | else | |
1070 | rest = rest->next; | |
1071 | return 0; | |
1072 | } | |
1073 | ||
1074 | /* Add an entry to the list of property changes we are waiting for. | |
1075 | DISPLAY, WINDOW, PROPERTY, STATE describe what we will wait for. | |
1076 | The return value is a number that uniquely identifies | |
1077 | this awaited property change. */ | |
1078 | ||
d1f21a66 | 1079 | static struct prop_location * |
5e617bc2 JB |
1080 | expect_property_change (Display *display, Window window, |
1081 | Atom property, int state) | |
ede4db72 | 1082 | { |
23f86fce | 1083 | struct prop_location *pl = xmalloc (sizeof *pl); |
2f65feb6 | 1084 | pl->identifier = ++prop_location_identifier; |
ede4db72 RS |
1085 | pl->display = display; |
1086 | pl->window = window; | |
1087 | pl->property = property; | |
1088 | pl->desired_state = state; | |
1089 | pl->next = property_change_wait_list; | |
d1f21a66 | 1090 | pl->arrived = 0; |
ede4db72 | 1091 | property_change_wait_list = pl; |
d1f21a66 | 1092 | return pl; |
ede4db72 RS |
1093 | } |
1094 | ||
1095 | /* Delete an entry from the list of property changes we are waiting for. | |
2f65feb6 | 1096 | IDENTIFIER is the number that uniquely identifies the entry. */ |
ede4db72 RS |
1097 | |
1098 | static void | |
971de7fb | 1099 | unexpect_property_change (struct prop_location *location) |
ede4db72 RS |
1100 | { |
1101 | struct prop_location *prev = 0, *rest = property_change_wait_list; | |
1102 | while (rest) | |
1103 | { | |
d1f21a66 | 1104 | if (rest == location) |
ede4db72 RS |
1105 | { |
1106 | if (prev) | |
1107 | prev->next = rest->next; | |
1108 | else | |
1109 | property_change_wait_list = rest->next; | |
4feb31b2 | 1110 | xfree (rest); |
ede4db72 RS |
1111 | return; |
1112 | } | |
1113 | prev = rest; | |
1114 | rest = rest->next; | |
1115 | } | |
1116 | } | |
1117 | ||
2f65feb6 RS |
1118 | /* Remove the property change expectation element for IDENTIFIER. */ |
1119 | ||
1120 | static Lisp_Object | |
971de7fb | 1121 | wait_for_property_change_unwind (Lisp_Object loc) |
2f65feb6 | 1122 | { |
2b30549c | 1123 | struct prop_location *location = XSAVE_POINTER (loc, 0); |
dd0fe424 KS |
1124 | |
1125 | unexpect_property_change (location); | |
1126 | if (location == property_change_reply_object) | |
1127 | property_change_reply_object = 0; | |
ab552306 | 1128 | return Qnil; |
2f65feb6 RS |
1129 | } |
1130 | ||
ede4db72 | 1131 | /* Actually wait for a property change. |
2f65feb6 | 1132 | IDENTIFIER should be the value that expect_property_change returned. */ |
ede4db72 RS |
1133 | |
1134 | static void | |
971de7fb | 1135 | wait_for_property_change (struct prop_location *location) |
ede4db72 | 1136 | { |
d311d28c | 1137 | ptrdiff_t count = SPECPDL_INDEX (); |
d1f21a66 | 1138 | |
dd0fe424 | 1139 | if (property_change_reply_object) |
1088b922 | 1140 | emacs_abort (); |
2f65feb6 RS |
1141 | |
1142 | /* Make sure to do unexpect_property_change if we quit or err. */ | |
dd0fe424 | 1143 | record_unwind_protect (wait_for_property_change_unwind, |
468afbac | 1144 | make_save_pointer (location)); |
2f65feb6 | 1145 | |
f3fbd155 | 1146 | XSETCAR (property_change_reply, Qnil); |
afe1529d | 1147 | property_change_reply_object = location; |
dd0fe424 | 1148 | |
afe1529d RS |
1149 | /* If the event we are waiting for arrives beyond here, it will set |
1150 | property_change_reply, because property_change_reply_object says so. */ | |
d1f21a66 RS |
1151 | if (! location->arrived) |
1152 | { | |
d35af63c PE |
1153 | EMACS_INT timeout = max (0, x_selection_timeout); |
1154 | EMACS_INT secs = timeout / 1000; | |
1155 | int nsecs = (timeout % 1000) * 1000000; | |
1156 | TRACE2 (" Waiting %"pI"d secs, %d nsecs", secs, nsecs); | |
1157 | wait_reading_process_output (secs, nsecs, 0, 0, | |
d64b707c | 1158 | property_change_reply, NULL, 0); |
d1f21a66 | 1159 | |
8e713be6 | 1160 | if (NILP (XCAR (property_change_reply))) |
d9c0d4a3 GM |
1161 | { |
1162 | TRACE0 (" Timed out"); | |
1163 | error ("Timed out waiting for property-notify event"); | |
1164 | } | |
d1f21a66 | 1165 | } |
2f65feb6 RS |
1166 | |
1167 | unbind_to (count, Qnil); | |
ede4db72 RS |
1168 | } |
1169 | ||
1170 | /* Called from XTread_socket in response to a PropertyNotify event. */ | |
1171 | ||
1172 | void | |
971de7fb | 1173 | x_handle_property_notify (XPropertyEvent *event) |
ede4db72 | 1174 | { |
6abdaa4a | 1175 | struct prop_location *rest; |
d9c0d4a3 | 1176 | |
6abdaa4a | 1177 | for (rest = property_change_wait_list; rest; rest = rest->next) |
ede4db72 | 1178 | { |
dd0fe424 KS |
1179 | if (!rest->arrived |
1180 | && rest->property == event->atom | |
ede4db72 RS |
1181 | && rest->window == event->window |
1182 | && rest->display == event->display | |
1183 | && rest->desired_state == event->state) | |
1184 | { | |
d9c0d4a3 GM |
1185 | TRACE2 ("Expected %s of property %s", |
1186 | (event->state == PropertyDelete ? "deletion" : "change"), | |
1187 | XGetAtomName (event->display, event->atom)); | |
ede4db72 | 1188 | |
d1f21a66 RS |
1189 | rest->arrived = 1; |
1190 | ||
ede4db72 RS |
1191 | /* If this is the one wait_for_property_change is waiting for, |
1192 | tell it to wake up. */ | |
d1f21a66 | 1193 | if (rest == property_change_reply_object) |
f3fbd155 | 1194 | XSETCAR (property_change_reply, Qt); |
ede4db72 | 1195 | |
ede4db72 RS |
1196 | return; |
1197 | } | |
ede4db72 | 1198 | } |
ede4db72 RS |
1199 | } |
1200 | ||
1201 | ||
1202 | \f | |
ede4db72 RS |
1203 | /* Variables for communication with x_handle_selection_notify. */ |
1204 | static Atom reading_which_selection; | |
1205 | static Lisp_Object reading_selection_reply; | |
1206 | static Window reading_selection_window; | |
1207 | ||
1208 | /* Do protocol to read selection-data from the server. | |
a9f737ee CY |
1209 | Converts this to Lisp data and returns it. |
1210 | FRAME is the frame whose X window shall request the selection. */ | |
ede4db72 RS |
1211 | |
1212 | static Lisp_Object | |
a9f737ee CY |
1213 | x_get_foreign_selection (Lisp_Object selection_symbol, Lisp_Object target_type, |
1214 | Lisp_Object time_stamp, Lisp_Object frame) | |
ede4db72 | 1215 | { |
a9f737ee CY |
1216 | struct frame *f = XFRAME (frame); |
1217 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); | |
1218 | Display *display = dpyinfo->display; | |
1219 | Window requestor_window = FRAME_X_WINDOW (f); | |
5d0ba25b | 1220 | Time requestor_time = last_event_timestamp; |
a9f737ee CY |
1221 | Atom target_property = dpyinfo->Xatom_EMACS_TMP; |
1222 | Atom selection_atom = symbol_to_x_atom (dpyinfo, selection_symbol); | |
1223 | Atom type_atom = (CONSP (target_type) | |
1224 | ? symbol_to_x_atom (dpyinfo, XCAR (target_type)) | |
1225 | : symbol_to_x_atom (dpyinfo, target_type)); | |
d35af63c PE |
1226 | EMACS_INT timeout, secs; |
1227 | int nsecs; | |
ede4db72 | 1228 | |
a9f737ee | 1229 | if (!FRAME_LIVE_P (f)) |
428a555e KL |
1230 | return Qnil; |
1231 | ||
3a42401d | 1232 | if (! NILP (time_stamp)) |
be44ca6c | 1233 | CONS_TO_INTEGER (time_stamp, Time, requestor_time); |
3a42401d | 1234 | |
4d7e6e51 | 1235 | block_input (); |
d9c0d4a3 GM |
1236 | TRACE2 ("Get selection %s, type %s", |
1237 | XGetAtomName (display, type_atom), | |
1238 | XGetAtomName (display, target_property)); | |
1239 | ||
de65b42c | 1240 | x_catch_errors (display); |
ede4db72 | 1241 | XConvertSelection (display, selection_atom, type_atom, target_property, |
5d0ba25b | 1242 | requestor_window, requestor_time); |
de65b42c CY |
1243 | x_check_errors (display, "Can't convert selection: %s"); |
1244 | x_uncatch_errors (); | |
ede4db72 RS |
1245 | |
1246 | /* Prepare to block until the reply has been read. */ | |
5d0ba25b | 1247 | reading_selection_window = requestor_window; |
ede4db72 | 1248 | reading_which_selection = selection_atom; |
f3fbd155 | 1249 | XSETCAR (reading_selection_reply, Qnil); |
55b2d45d | 1250 | |
e067f0c1 CY |
1251 | /* It should not be necessary to stop handling selection requests |
1252 | during this time. In fact, the SAVE_TARGETS mechanism requires | |
1253 | us to handle a clipboard manager's requests before it returns | |
1254 | SelectionNotify. */ | |
1255 | #if 0 | |
a9f737ee CY |
1256 | x_start_queuing_selection_requests (); |
1257 | record_unwind_protect (queue_selection_requests_unwind, Qnil); | |
e067f0c1 CY |
1258 | #endif |
1259 | ||
4d7e6e51 | 1260 | unblock_input (); |
ede4db72 | 1261 | |
80da0190 | 1262 | /* This allows quits. Also, don't wait forever. */ |
d35af63c PE |
1263 | timeout = max (0, x_selection_timeout); |
1264 | secs = timeout / 1000; | |
1265 | nsecs = (timeout % 1000) * 1000000; | |
1266 | TRACE1 (" Start waiting %"pI"d secs for SelectionNotify", secs); | |
1267 | wait_reading_process_output (secs, nsecs, 0, 0, | |
d64b707c | 1268 | reading_selection_reply, NULL, 0); |
d9c0d4a3 | 1269 | TRACE1 (" Got event = %d", !NILP (XCAR (reading_selection_reply))); |
ede4db72 | 1270 | |
8e713be6 | 1271 | if (NILP (XCAR (reading_selection_reply))) |
606140dd | 1272 | error ("Timed out waiting for reply from selection owner"); |
8e713be6 | 1273 | if (EQ (XCAR (reading_selection_reply), Qlambda)) |
12061f06 | 1274 | return Qnil; |
ede4db72 RS |
1275 | |
1276 | /* Otherwise, the selection is waiting for us on the requested property. */ | |
1277 | return | |
5d0ba25b | 1278 | x_get_window_property_as_lisp_data (display, requestor_window, |
ede4db72 RS |
1279 | target_property, target_type, |
1280 | selection_atom); | |
1281 | } | |
1282 | \f | |
1283 | /* Subroutines of x_get_window_property_as_lisp_data */ | |
1284 | ||
4feb31b2 | 1285 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1286 | |
ede4db72 | 1287 | static void |
d5a3eaaf | 1288 | x_get_window_property (Display *display, Window window, Atom property, |
864d7ce7 | 1289 | unsigned char **data_ret, ptrdiff_t *bytes_ret, |
d5a3eaaf AS |
1290 | Atom *actual_type_ret, int *actual_format_ret, |
1291 | unsigned long *actual_size_ret, int delete_p) | |
ede4db72 | 1292 | { |
864d7ce7 | 1293 | ptrdiff_t total_size; |
ede4db72 | 1294 | unsigned long bytes_remaining; |
864d7ce7 PE |
1295 | ptrdiff_t offset = 0; |
1296 | unsigned char *data = 0; | |
ede4db72 RS |
1297 | unsigned char *tmp_data = 0; |
1298 | int result; | |
864d7ce7 PE |
1299 | int buffer_size = selection_quantum (display); |
1300 | ||
1301 | /* Wide enough to avoid overflow in expressions using it. */ | |
1302 | ptrdiff_t x_long_size = X_LONG_SIZE; | |
1b65481e | 1303 | |
864d7ce7 PE |
1304 | /* Maximum value for TOTAL_SIZE. It cannot exceed PTRDIFF_MAX - 1 |
1305 | and SIZE_MAX - 1, for an extra byte at the end. And it cannot | |
1306 | exceed LONG_MAX * X_LONG_SIZE, for XGetWindowProperty. */ | |
1307 | ptrdiff_t total_size_max = | |
1308 | ((min (PTRDIFF_MAX, SIZE_MAX) - 1) / x_long_size < LONG_MAX | |
1309 | ? min (PTRDIFF_MAX, SIZE_MAX) - 1 | |
1310 | : LONG_MAX * x_long_size); | |
1b65481e | 1311 | |
4d7e6e51 | 1312 | block_input (); |
1b65481e | 1313 | |
ede4db72 RS |
1314 | /* First probe the thing to find out how big it is. */ |
1315 | result = XGetWindowProperty (display, window, property, | |
137edb72 | 1316 | 0L, 0L, False, AnyPropertyType, |
ede4db72 RS |
1317 | actual_type_ret, actual_format_ret, |
1318 | actual_size_ret, | |
1319 | &bytes_remaining, &tmp_data); | |
ede4db72 | 1320 | if (result != Success) |
864d7ce7 | 1321 | goto done; |
1b65481e | 1322 | |
0158abbc | 1323 | /* This was allocated by Xlib, so use XFree. */ |
98c6f1e3 | 1324 | XFree (tmp_data); |
1b65481e | 1325 | |
ede4db72 | 1326 | if (*actual_type_ret == None || *actual_format_ret == 0) |
864d7ce7 | 1327 | goto done; |
ede4db72 | 1328 | |
864d7ce7 PE |
1329 | if (total_size_max < bytes_remaining) |
1330 | goto size_overflow; | |
1331 | total_size = bytes_remaining; | |
1332 | data = malloc (total_size + 1); | |
1333 | if (! data) | |
1334 | goto memory_exhausted; | |
1b65481e | 1335 | |
2a1a4c9d | 1336 | /* Now read, until we've gotten it all. */ |
ede4db72 RS |
1337 | while (bytes_remaining) |
1338 | { | |
864d7ce7 PE |
1339 | ptrdiff_t bytes_gotten; |
1340 | int bytes_per_item; | |
ede4db72 RS |
1341 | result |
1342 | = XGetWindowProperty (display, window, property, | |
864d7ce7 PE |
1343 | offset / X_LONG_SIZE, |
1344 | buffer_size / X_LONG_SIZE, | |
2f65feb6 | 1345 | False, |
ede4db72 RS |
1346 | AnyPropertyType, |
1347 | actual_type_ret, actual_format_ret, | |
1348 | actual_size_ret, &bytes_remaining, &tmp_data); | |
d9c0d4a3 | 1349 | |
ede4db72 RS |
1350 | /* If this doesn't return Success at this point, it means that |
1351 | some clod deleted the selection while we were in the midst of | |
d9c0d4a3 GM |
1352 | reading it. Deal with that, I guess.... */ |
1353 | if (result != Success) | |
1354 | break; | |
e22cf39c | 1355 | |
864d7ce7 | 1356 | bytes_per_item = *actual_format_ret >> 3; |
a54e2c05 | 1357 | eassert (*actual_size_ret <= buffer_size / bytes_per_item); |
864d7ce7 | 1358 | |
e22cf39c JD |
1359 | /* The man page for XGetWindowProperty says: |
1360 | "If the returned format is 32, the returned data is represented | |
1361 | as a long array and should be cast to that type to obtain the | |
1362 | elements." | |
1363 | This applies even if long is more than 32 bits, the X library | |
1364 | converts from 32 bit elements received from the X server to long | |
72af86bd | 1365 | and passes the long array to us. Thus, for that case memcpy can not |
e22cf39c JD |
1366 | be used. We convert to a 32 bit type here, because so much code |
1367 | assume on that. | |
1368 | ||
1369 | The bytes and offsets passed to XGetWindowProperty refers to the | |
1370 | property and those are indeed in 32 bit quantities if format is 32. */ | |
1371 | ||
864d7ce7 PE |
1372 | bytes_gotten = *actual_size_ret; |
1373 | bytes_gotten *= bytes_per_item; | |
1374 | ||
1375 | TRACE2 ("Read %"pD"d bytes from property %s", | |
1376 | bytes_gotten, XGetAtomName (display, property)); | |
1377 | ||
1378 | if (total_size - offset < bytes_gotten) | |
1379 | { | |
1380 | unsigned char *data1; | |
1381 | ptrdiff_t remaining_lim = total_size_max - offset - bytes_gotten; | |
1382 | if (remaining_lim < 0 || remaining_lim < bytes_remaining) | |
1383 | goto size_overflow; | |
1384 | total_size = offset + bytes_gotten + bytes_remaining; | |
1385 | data1 = realloc (data, total_size + 1); | |
1386 | if (! data1) | |
1387 | goto memory_exhausted; | |
1388 | data = data1; | |
1389 | } | |
1390 | ||
2172544b | 1391 | if (32 < BITS_PER_LONG && *actual_format_ret == 32) |
e22cf39c JD |
1392 | { |
1393 | unsigned long i; | |
864d7ce7 | 1394 | int *idata = (int *) (data + offset); |
e22cf39c JD |
1395 | long *ldata = (long *) tmp_data; |
1396 | ||
1397 | for (i = 0; i < *actual_size_ret; ++i) | |
864d7ce7 | 1398 | idata[i] = ldata[i]; |
e22cf39c JD |
1399 | } |
1400 | else | |
864d7ce7 PE |
1401 | memcpy (data + offset, tmp_data, bytes_gotten); |
1402 | ||
1403 | offset += bytes_gotten; | |
1b65481e | 1404 | |
0158abbc | 1405 | /* This was allocated by Xlib, so use XFree. */ |
98c6f1e3 | 1406 | XFree (tmp_data); |
ede4db72 | 1407 | } |
2f65feb6 | 1408 | |
5c3a351a | 1409 | XFlush (display); |
864d7ce7 PE |
1410 | data[offset] = '\0'; |
1411 | ||
1412 | done: | |
4d7e6e51 | 1413 | unblock_input (); |
864d7ce7 | 1414 | *data_ret = data; |
ede4db72 | 1415 | *bytes_ret = offset; |
864d7ce7 PE |
1416 | return; |
1417 | ||
1418 | size_overflow: | |
1419 | free (data); | |
4d7e6e51 | 1420 | unblock_input (); |
864d7ce7 PE |
1421 | memory_full (SIZE_MAX); |
1422 | ||
1423 | memory_exhausted: | |
1424 | free (data); | |
4d7e6e51 | 1425 | unblock_input (); |
864d7ce7 | 1426 | memory_full (total_size + 1); |
ede4db72 RS |
1427 | } |
1428 | \f | |
4feb31b2 | 1429 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1430 | |
ede4db72 | 1431 | static void |
d5a3eaaf AS |
1432 | receive_incremental_selection (Display *display, Window window, Atom property, |
1433 | Lisp_Object target_type, | |
1434 | unsigned int min_size_bytes, | |
864d7ce7 PE |
1435 | unsigned char **data_ret, |
1436 | ptrdiff_t *size_bytes_ret, | |
d5a3eaaf AS |
1437 | Atom *type_ret, int *format_ret, |
1438 | unsigned long *size_ret) | |
ede4db72 | 1439 | { |
864d7ce7 | 1440 | ptrdiff_t offset = 0; |
d1f21a66 | 1441 | struct prop_location *wait_object; |
864d7ce7 PE |
1442 | if (min (PTRDIFF_MAX, SIZE_MAX) < min_size_bytes) |
1443 | memory_full (SIZE_MAX); | |
23f86fce | 1444 | *data_ret = xmalloc (min_size_bytes); |
ede4db72 | 1445 | *size_bytes_ret = min_size_bytes; |
d9c0d4a3 | 1446 | |
864d7ce7 | 1447 | TRACE1 ("Read %u bytes incrementally", min_size_bytes); |
2f65feb6 RS |
1448 | |
1449 | /* At this point, we have read an INCR property. | |
1450 | Delete the property to ack it. | |
1451 | (But first, prepare to receive the next event in this handshake.) | |
ede4db72 RS |
1452 | |
1453 | Now, we must loop, waiting for the sending window to put a value on | |
1454 | that property, then reading the property, then deleting it to ack. | |
1455 | We are done when the sender places a property of length 0. | |
1456 | */ | |
4d7e6e51 | 1457 | block_input (); |
2f65feb6 | 1458 | XSelectInput (display, window, STANDARD_EVENT_SET | PropertyChangeMask); |
d9c0d4a3 | 1459 | TRACE1 (" Delete property %s", |
dd0fe424 | 1460 | SDATA (SYMBOL_NAME (x_atom_to_symbol (display, property)))); |
2f65feb6 | 1461 | XDeleteProperty (display, window, property); |
d9c0d4a3 | 1462 | TRACE1 (" Expect new value of property %s", |
dd0fe424 | 1463 | SDATA (SYMBOL_NAME (x_atom_to_symbol (display, property)))); |
d1f21a66 RS |
1464 | wait_object = expect_property_change (display, window, property, |
1465 | PropertyNewValue); | |
5c3a351a | 1466 | XFlush (display); |
4d7e6e51 | 1467 | unblock_input (); |
2f65feb6 | 1468 | |
ede4db72 RS |
1469 | while (1) |
1470 | { | |
1471 | unsigned char *tmp_data; | |
864d7ce7 | 1472 | ptrdiff_t tmp_size_bytes; |
d9c0d4a3 GM |
1473 | |
1474 | TRACE0 (" Wait for property change"); | |
d1f21a66 | 1475 | wait_for_property_change (wait_object); |
1b65481e | 1476 | |
ede4db72 | 1477 | /* expect it again immediately, because x_get_window_property may |
2a1a4c9d | 1478 | .. no it won't, I don't get it. |
d9c0d4a3 GM |
1479 | .. Ok, I get it now, the Xt code that implements INCR is broken. */ |
1480 | TRACE0 (" Get property value"); | |
ede4db72 RS |
1481 | x_get_window_property (display, window, property, |
1482 | &tmp_data, &tmp_size_bytes, | |
1483 | type_ret, format_ret, size_ret, 1); | |
1484 | ||
864d7ce7 | 1485 | TRACE1 (" Read increment of %"pD"d bytes", tmp_size_bytes); |
d9c0d4a3 | 1486 | |
ede4db72 RS |
1487 | if (tmp_size_bytes == 0) /* we're done */ |
1488 | { | |
d9c0d4a3 GM |
1489 | TRACE0 ("Done reading incrementally"); |
1490 | ||
2f65feb6 RS |
1491 | if (! waiting_for_other_props_on_window (display, window)) |
1492 | XSelectInput (display, window, STANDARD_EVENT_SET); | |
4feb31b2 | 1493 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1494 | calls xmalloc itself. */ |
70fdbb46 | 1495 | xfree (tmp_data); |
ede4db72 RS |
1496 | break; |
1497 | } | |
2f65feb6 | 1498 | |
4d7e6e51 | 1499 | block_input (); |
d9c0d4a3 GM |
1500 | TRACE1 (" ACK by deleting property %s", |
1501 | XGetAtomName (display, property)); | |
2f65feb6 | 1502 | XDeleteProperty (display, window, property); |
d1f21a66 RS |
1503 | wait_object = expect_property_change (display, window, property, |
1504 | PropertyNewValue); | |
5c3a351a | 1505 | XFlush (display); |
4d7e6e51 | 1506 | unblock_input (); |
2f65feb6 | 1507 | |
864d7ce7 | 1508 | if (*size_bytes_ret - offset < tmp_size_bytes) |
0065d054 PE |
1509 | *data_ret = xpalloc (*data_ret, size_bytes_ret, |
1510 | tmp_size_bytes - (*size_bytes_ret - offset), | |
1511 | -1, 1); | |
1b65481e | 1512 | |
72af86bd | 1513 | memcpy ((*data_ret) + offset, tmp_data, tmp_size_bytes); |
ede4db72 | 1514 | offset += tmp_size_bytes; |
1b65481e | 1515 | |
4feb31b2 | 1516 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1517 | calls xmalloc itself. */ |
4feb31b2 | 1518 | xfree (tmp_data); |
ede4db72 RS |
1519 | } |
1520 | } | |
d9c0d4a3 | 1521 | |
ede4db72 | 1522 | \f |
e067f0c1 CY |
1523 | /* Fetch a value from property PROPERTY of X window WINDOW on display |
1524 | DISPLAY. TARGET_TYPE and SELECTION_ATOM are used in error message | |
1525 | if this fails. */ | |
ede4db72 RS |
1526 | |
1527 | static Lisp_Object | |
d5a3eaaf AS |
1528 | x_get_window_property_as_lisp_data (Display *display, Window window, |
1529 | Atom property, | |
1530 | Lisp_Object target_type, | |
1531 | Atom selection_atom) | |
ede4db72 RS |
1532 | { |
1533 | Atom actual_type; | |
1534 | int actual_format; | |
1535 | unsigned long actual_size; | |
1536 | unsigned char *data = 0; | |
864d7ce7 | 1537 | ptrdiff_t bytes = 0; |
ede4db72 | 1538 | Lisp_Object val; |
5c3a351a | 1539 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 | 1540 | |
d9c0d4a3 GM |
1541 | TRACE0 ("Reading selection data"); |
1542 | ||
ede4db72 RS |
1543 | x_get_window_property (display, window, property, &data, &bytes, |
1544 | &actual_type, &actual_format, &actual_size, 1); | |
1545 | if (! data) | |
1546 | { | |
1547 | int there_is_a_selection_owner; | |
4d7e6e51 | 1548 | block_input (); |
ede4db72 RS |
1549 | there_is_a_selection_owner |
1550 | = XGetSelectionOwner (display, selection_atom); | |
4d7e6e51 | 1551 | unblock_input (); |
4d30ce50 KS |
1552 | if (there_is_a_selection_owner) |
1553 | signal_error ("Selection owner couldn't convert", | |
1554 | actual_type | |
1555 | ? list2 (target_type, | |
1556 | x_atom_to_symbol (display, actual_type)) | |
1557 | : target_type); | |
1558 | else | |
1559 | signal_error ("No selection", | |
1560 | x_atom_to_symbol (display, selection_atom)); | |
ede4db72 | 1561 | } |
1b65481e | 1562 | |
5c3a351a | 1563 | if (actual_type == dpyinfo->Xatom_INCR) |
ede4db72 RS |
1564 | { |
1565 | /* That wasn't really the data, just the beginning. */ | |
1566 | ||
1567 | unsigned int min_size_bytes = * ((unsigned int *) data); | |
4d7e6e51 | 1568 | block_input (); |
4feb31b2 | 1569 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1570 | calls xmalloc itself. */ |
98c6f1e3 | 1571 | xfree (data); |
4d7e6e51 | 1572 | unblock_input (); |
ede4db72 RS |
1573 | receive_incremental_selection (display, window, property, target_type, |
1574 | min_size_bytes, &data, &bytes, | |
1575 | &actual_type, &actual_format, | |
1576 | &actual_size); | |
1577 | } | |
1578 | ||
4d7e6e51 | 1579 | block_input (); |
d9c0d4a3 | 1580 | TRACE1 (" Delete property %s", XGetAtomName (display, property)); |
2f65feb6 | 1581 | XDeleteProperty (display, window, property); |
5c3a351a | 1582 | XFlush (display); |
4d7e6e51 | 1583 | unblock_input (); |
2f65feb6 | 1584 | |
ede4db72 RS |
1585 | /* It's been read. Now convert it to a lisp object in some semi-rational |
1586 | manner. */ | |
1587 | val = selection_data_to_lisp_data (display, data, bytes, | |
1588 | actual_type, actual_format); | |
1b65481e | 1589 | |
4feb31b2 | 1590 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1591 | calls xmalloc itself. */ |
98c6f1e3 | 1592 | xfree (data); |
ede4db72 RS |
1593 | return val; |
1594 | } | |
1595 | \f | |
1596 | /* These functions convert from the selection data read from the server into | |
1597 | something that we can use from Lisp, and vice versa. | |
1598 | ||
1599 | Type: Format: Size: Lisp Type: | |
1600 | ----- ------- ----- ----------- | |
1601 | * 8 * String | |
1602 | ATOM 32 1 Symbol | |
1603 | ATOM 32 > 1 Vector of Symbols | |
1604 | * 16 1 Integer | |
1605 | * 16 > 1 Vector of Integers | |
1606 | * 32 1 if <=16 bits: Integer | |
1607 | if > 16 bits: Cons of top16, bot16 | |
1608 | * 32 > 1 Vector of the above | |
1609 | ||
1610 | When converting a Lisp number to C, it is assumed to be of format 16 if | |
1611 | it is an integer, and of format 32 if it is a cons of two integers. | |
1612 | ||
1613 | When converting a vector of numbers from Lisp to C, it is assumed to be | |
1614 | of format 16 if every element in the vector is an integer, and is assumed | |
1615 | to be of format 32 if any element is a cons of two integers. | |
1616 | ||
1617 | When converting an object to C, it may be of the form (SYMBOL . <data>) | |
1618 | where SYMBOL is what we should claim that the type is. Format and | |
b8d6f4af JD |
1619 | representation are as above. |
1620 | ||
1621 | Important: When format is 32, data should contain an array of int, | |
1622 | not an array of long as the X library returns. This makes a difference | |
1623 | when sizeof(long) != sizeof(int). */ | |
ede4db72 RS |
1624 | |
1625 | ||
1626 | ||
1627 | static Lisp_Object | |
eec47d6b | 1628 | selection_data_to_lisp_data (Display *display, const unsigned char *data, |
864d7ce7 | 1629 | ptrdiff_t size, Atom type, int format) |
ede4db72 | 1630 | { |
5c3a351a | 1631 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 | 1632 | |
5c3a351a | 1633 | if (type == dpyinfo->Xatom_NULL) |
ede4db72 RS |
1634 | return QNULL; |
1635 | ||
1636 | /* Convert any 8-bit data to a string, for compactness. */ | |
1637 | else if (format == 8) | |
e6c7c988 | 1638 | { |
e57ad4d8 KH |
1639 | Lisp_Object str, lispy_type; |
1640 | ||
1641 | str = make_unibyte_string ((char *) data, size); | |
1642 | /* Indicate that this string is from foreign selection by a text | |
1643 | property `foreign-selection' so that the caller of | |
1644 | x-get-selection-internal (usually x-get-selection) can know | |
1645 | that the string must be decode. */ | |
1646 | if (type == dpyinfo->Xatom_COMPOUND_TEXT) | |
1647 | lispy_type = QCOMPOUND_TEXT; | |
1648 | else if (type == dpyinfo->Xatom_UTF8_STRING) | |
1649 | lispy_type = QUTF8_STRING; | |
e6c7c988 | 1650 | else |
e57ad4d8 KH |
1651 | lispy_type = QSTRING; |
1652 | Fput_text_property (make_number (0), make_number (size), | |
1653 | Qforeign_selection, lispy_type, str); | |
e6c7c988 KH |
1654 | return str; |
1655 | } | |
ede4db72 | 1656 | /* Convert a single atom to a Lisp_Symbol. Convert a set of atoms to |
e067f0c1 CY |
1657 | a vector of symbols. */ |
1658 | else if (type == XA_ATOM | |
1659 | /* Treat ATOM_PAIR type similar to list of atoms. */ | |
1660 | || type == dpyinfo->Xatom_ATOM_PAIR) | |
ede4db72 | 1661 | { |
864d7ce7 | 1662 | ptrdiff_t i; |
b8d6f4af JD |
1663 | /* On a 64 bit machine sizeof(Atom) == sizeof(long) == 8. |
1664 | But the callers of these function has made sure the data for | |
1665 | format == 32 is an array of int. Thus, use int instead | |
1666 | of Atom. */ | |
1667 | int *idata = (int *) data; | |
1668 | ||
1669 | if (size == sizeof (int)) | |
1670 | return x_atom_to_symbol (display, (Atom) idata[0]); | |
ede4db72 RS |
1671 | else |
1672 | { | |
25721f5b DA |
1673 | Lisp_Object v = make_uninit_vector (size / sizeof (int)); |
1674 | ||
b8d6f4af | 1675 | for (i = 0; i < size / sizeof (int); i++) |
9a9d91d9 | 1676 | ASET (v, i, x_atom_to_symbol (display, (Atom) idata[i])); |
ede4db72 RS |
1677 | return v; |
1678 | } | |
1679 | } | |
1680 | ||
1ad08acd RS |
1681 | /* Convert a single 16-bit number or a small 32-bit number to a Lisp_Int. |
1682 | If the number is 32 bits and won't fit in a Lisp_Int, | |
1683 | convert it to a cons of integers, 16 bits in each half. | |
ede4db72 | 1684 | */ |
2f51feb8 | 1685 | else if (format == 32 && size == sizeof (int)) |
d2eea5b5 | 1686 | return INTEGER_TO_CONS (((int *) data) [0]); |
ede4db72 | 1687 | else if (format == 16 && size == sizeof (short)) |
d2eea5b5 | 1688 | return make_number (((short *) data) [0]); |
ede4db72 RS |
1689 | |
1690 | /* Convert any other kind of data to a vector of numbers, represented | |
1691 | as above (as an integer, or a cons of two 16 bit integers.) | |
1692 | */ | |
1693 | else if (format == 16) | |
1694 | { | |
864d7ce7 | 1695 | ptrdiff_t i; |
25721f5b DA |
1696 | Lisp_Object v = make_uninit_vector (size / 2); |
1697 | ||
937a3875 | 1698 | for (i = 0; i < size / 2; i++) |
ede4db72 | 1699 | { |
d311d28c | 1700 | short j = ((short *) data) [i]; |
9a9d91d9 | 1701 | ASET (v, i, make_number (j)); |
ede4db72 RS |
1702 | } |
1703 | return v; | |
1704 | } | |
1705 | else | |
1706 | { | |
864d7ce7 | 1707 | ptrdiff_t i; |
25721f5b DA |
1708 | Lisp_Object v = make_uninit_vector (size / X_LONG_SIZE); |
1709 | ||
864d7ce7 | 1710 | for (i = 0; i < size / X_LONG_SIZE; i++) |
ede4db72 | 1711 | { |
d2eea5b5 | 1712 | int j = ((int *) data) [i]; |
9a9d91d9 | 1713 | ASET (v, i, INTEGER_TO_CONS (j)); |
ede4db72 RS |
1714 | } |
1715 | return v; | |
1716 | } | |
1717 | } | |
1718 | ||
2e621251 PE |
1719 | /* Convert OBJ to an X long value, and return it as unsigned long. |
1720 | OBJ should be an integer or a cons representing an integer. | |
1721 | Treat values in the range X_LONG_MAX + 1 .. X_ULONG_MAX as X | |
1722 | unsigned long values: in theory these values are supposed to be | |
1723 | signed but in practice unsigned 32-bit data are communicated via X | |
1724 | selections and we need to support that. */ | |
1725 | static unsigned long | |
1726 | cons_to_x_long (Lisp_Object obj) | |
1727 | { | |
1728 | if (X_ULONG_MAX <= INTMAX_MAX | |
1729 | || XINT (INTEGERP (obj) ? obj : XCAR (obj)) < 0) | |
1730 | return cons_to_signed (obj, X_LONG_MIN, min (X_ULONG_MAX, INTMAX_MAX)); | |
1731 | else | |
1732 | return cons_to_unsigned (obj, X_ULONG_MAX); | |
1733 | } | |
ede4db72 | 1734 | |
4feb31b2 | 1735 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1736 | |
ede4db72 | 1737 | static void |
d5a3eaaf AS |
1738 | lisp_data_to_selection_data (Display *display, Lisp_Object obj, |
1739 | unsigned char **data_ret, Atom *type_ret, | |
864d7ce7 | 1740 | ptrdiff_t *size_ret, |
d5a3eaaf | 1741 | int *format_ret, int *nofree_ret) |
ede4db72 RS |
1742 | { |
1743 | Lisp_Object type = Qnil; | |
5c3a351a | 1744 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
aca39f42 RS |
1745 | |
1746 | *nofree_ret = 0; | |
1747 | ||
8e713be6 | 1748 | if (CONSP (obj) && SYMBOLP (XCAR (obj))) |
ede4db72 | 1749 | { |
8e713be6 KR |
1750 | type = XCAR (obj); |
1751 | obj = XCDR (obj); | |
1752 | if (CONSP (obj) && NILP (XCDR (obj))) | |
1753 | obj = XCAR (obj); | |
ede4db72 RS |
1754 | } |
1755 | ||
1756 | if (EQ (obj, QNULL) || (EQ (type, QNULL))) | |
1757 | { /* This is not the same as declining */ | |
1758 | *format_ret = 32; | |
1759 | *size_ret = 0; | |
1760 | *data_ret = 0; | |
1761 | type = QNULL; | |
1762 | } | |
1763 | else if (STRINGP (obj)) | |
1764 | { | |
1bd70c6e KH |
1765 | if (SCHARS (obj) < SBYTES (obj)) |
1766 | /* OBJ is a multibyte string containing a non-ASCII char. */ | |
4d30ce50 | 1767 | signal_error ("Non-ASCII string must be encoded in advance", obj); |
7b9ae523 | 1768 | if (NILP (type)) |
5109c8dd KH |
1769 | type = QSTRING; |
1770 | *format_ret = 8; | |
1771 | *size_ret = SBYTES (obj); | |
1772 | *data_ret = SDATA (obj); | |
1773 | *nofree_ret = 1; | |
ede4db72 RS |
1774 | } |
1775 | else if (SYMBOLP (obj)) | |
1776 | { | |
38182d90 PE |
1777 | void *data = xmalloc (sizeof (Atom) + 1); |
1778 | Atom *x_atom_ptr = data; | |
1779 | *data_ret = data; | |
ede4db72 RS |
1780 | *format_ret = 32; |
1781 | *size_ret = 1; | |
ede4db72 | 1782 | (*data_ret) [sizeof (Atom)] = 0; |
38182d90 | 1783 | *x_atom_ptr = symbol_to_x_atom (dpyinfo, obj); |
ede4db72 RS |
1784 | if (NILP (type)) type = QATOM; |
1785 | } | |
252c5ee1 | 1786 | else if (RANGED_INTEGERP (X_SHRT_MIN, obj, X_SHRT_MAX)) |
ede4db72 | 1787 | { |
38182d90 PE |
1788 | void *data = xmalloc (sizeof (short) + 1); |
1789 | short *short_ptr = data; | |
1790 | *data_ret = data; | |
ede4db72 RS |
1791 | *format_ret = 16; |
1792 | *size_ret = 1; | |
ede4db72 | 1793 | (*data_ret) [sizeof (short)] = 0; |
38182d90 | 1794 | *short_ptr = XINT (obj); |
ede4db72 RS |
1795 | if (NILP (type)) type = QINTEGER; |
1796 | } | |
a87ed99c | 1797 | else if (INTEGERP (obj) |
8e713be6 KR |
1798 | || (CONSP (obj) && INTEGERP (XCAR (obj)) |
1799 | && (INTEGERP (XCDR (obj)) | |
1800 | || (CONSP (XCDR (obj)) | |
1801 | && INTEGERP (XCAR (XCDR (obj))))))) | |
ede4db72 | 1802 | { |
38182d90 PE |
1803 | void *data = xmalloc (sizeof (unsigned long) + 1); |
1804 | unsigned long *x_long_ptr = data; | |
1805 | *data_ret = data; | |
ede4db72 RS |
1806 | *format_ret = 32; |
1807 | *size_ret = 1; | |
2e621251 | 1808 | (*data_ret) [sizeof (unsigned long)] = 0; |
38182d90 | 1809 | *x_long_ptr = cons_to_x_long (obj); |
ede4db72 RS |
1810 | if (NILP (type)) type = QINTEGER; |
1811 | } | |
1812 | else if (VECTORP (obj)) | |
1813 | { | |
1814 | /* Lisp_Vectors may represent a set of ATOMs; | |
1815 | a set of 16 or 32 bit INTEGERs; | |
1816 | or a set of ATOM_PAIRs (represented as [[A1 A2] [A3 A4] ...] | |
1817 | */ | |
864d7ce7 PE |
1818 | ptrdiff_t i; |
1819 | ptrdiff_t size = ASIZE (obj); | |
ede4db72 | 1820 | |
28be1ada | 1821 | if (SYMBOLP (AREF (obj, 0))) |
ede4db72 RS |
1822 | /* This vector is an ATOM set */ |
1823 | { | |
38182d90 PE |
1824 | void *data; |
1825 | Atom *x_atoms; | |
ede4db72 | 1826 | if (NILP (type)) type = QATOM; |
864d7ce7 | 1827 | for (i = 0; i < size; i++) |
28be1ada | 1828 | if (!SYMBOLP (AREF (obj, i))) |
4d30ce50 | 1829 | signal_error ("All elements of selection vector must have same type", obj); |
1b65481e | 1830 | |
38182d90 PE |
1831 | *data_ret = data = xnmalloc (size, sizeof *x_atoms); |
1832 | x_atoms = data; | |
864d7ce7 PE |
1833 | *format_ret = 32; |
1834 | *size_ret = size; | |
1835 | for (i = 0; i < size; i++) | |
38182d90 | 1836 | x_atoms[i] = symbol_to_x_atom (dpyinfo, AREF (obj, i)); |
ede4db72 | 1837 | } |
ede4db72 RS |
1838 | else |
1839 | /* This vector is an INTEGER set, or something like it */ | |
1840 | { | |
864d7ce7 | 1841 | int format = 16; |
0065d054 | 1842 | int data_size = sizeof (short); |
38182d90 PE |
1843 | void *data; |
1844 | unsigned long *x_atoms; | |
1845 | short *shorts; | |
ede4db72 | 1846 | if (NILP (type)) type = QINTEGER; |
864d7ce7 | 1847 | for (i = 0; i < size; i++) |
252c5ee1 | 1848 | { |
28be1ada | 1849 | if (! RANGED_INTEGERP (X_SHRT_MIN, AREF (obj, i), |
2e621251 | 1850 | X_SHRT_MAX)) |
252c5ee1 PE |
1851 | { |
1852 | /* Use sizeof (long) even if it is more than 32 bits. | |
1853 | See comment in x_get_window_property and | |
1854 | x_fill_property_data. */ | |
1855 | data_size = sizeof (long); | |
1856 | format = 32; | |
2e621251 | 1857 | break; |
252c5ee1 PE |
1858 | } |
1859 | } | |
38182d90 PE |
1860 | *data_ret = data = xnmalloc (size, data_size); |
1861 | x_atoms = data; | |
1862 | shorts = data; | |
864d7ce7 PE |
1863 | *format_ret = format; |
1864 | *size_ret = size; | |
1865 | for (i = 0; i < size; i++) | |
252c5ee1 | 1866 | { |
252c5ee1 | 1867 | if (format == 32) |
38182d90 | 1868 | x_atoms[i] = cons_to_x_long (AREF (obj, i)); |
252c5ee1 | 1869 | else |
38182d90 | 1870 | shorts[i] = XINT (AREF (obj, i)); |
252c5ee1 | 1871 | } |
ede4db72 RS |
1872 | } |
1873 | } | |
1874 | else | |
4d30ce50 | 1875 | signal_error (/* Qselection_error */ "Unrecognized selection data", obj); |
ede4db72 | 1876 | |
a9f737ee | 1877 | *type_ret = symbol_to_x_atom (dpyinfo, type); |
ede4db72 RS |
1878 | } |
1879 | ||
1880 | static Lisp_Object | |
971de7fb | 1881 | clean_local_selection_data (Lisp_Object obj) |
ede4db72 RS |
1882 | { |
1883 | if (CONSP (obj) | |
8e713be6 KR |
1884 | && INTEGERP (XCAR (obj)) |
1885 | && CONSP (XCDR (obj)) | |
1886 | && INTEGERP (XCAR (XCDR (obj))) | |
1887 | && NILP (XCDR (XCDR (obj)))) | |
1888 | obj = Fcons (XCAR (obj), XCDR (obj)); | |
ede4db72 RS |
1889 | |
1890 | if (CONSP (obj) | |
8e713be6 KR |
1891 | && INTEGERP (XCAR (obj)) |
1892 | && INTEGERP (XCDR (obj))) | |
ede4db72 | 1893 | { |
8e713be6 KR |
1894 | if (XINT (XCAR (obj)) == 0) |
1895 | return XCDR (obj); | |
1896 | if (XINT (XCAR (obj)) == -1) | |
1897 | return make_number (- XINT (XCDR (obj))); | |
ede4db72 RS |
1898 | } |
1899 | if (VECTORP (obj)) | |
1900 | { | |
864d7ce7 PE |
1901 | ptrdiff_t i; |
1902 | ptrdiff_t size = ASIZE (obj); | |
ede4db72 RS |
1903 | Lisp_Object copy; |
1904 | if (size == 1) | |
28be1ada | 1905 | return clean_local_selection_data (AREF (obj, 0)); |
3bfc46eb | 1906 | copy = make_uninit_vector (size); |
ede4db72 | 1907 | for (i = 0; i < size; i++) |
28be1ada | 1908 | ASET (copy, i, clean_local_selection_data (AREF (obj, i))); |
ede4db72 RS |
1909 | return copy; |
1910 | } | |
1911 | return obj; | |
1912 | } | |
1913 | \f | |
1914 | /* Called from XTread_socket to handle SelectionNotify events. | |
606140dd KH |
1915 | If it's the selection we are waiting for, stop waiting |
1916 | by setting the car of reading_selection_reply to non-nil. | |
1917 | We store t there if the reply is successful, lambda if not. */ | |
ede4db72 RS |
1918 | |
1919 | void | |
971de7fb | 1920 | x_handle_selection_notify (XSelectionEvent *event) |
ede4db72 | 1921 | { |
5d0ba25b | 1922 | if (event->requestor != reading_selection_window) |
ede4db72 RS |
1923 | return; |
1924 | if (event->selection != reading_which_selection) | |
1925 | return; | |
1926 | ||
d9c0d4a3 | 1927 | TRACE0 ("Received SelectionNotify"); |
f3fbd155 KR |
1928 | XSETCAR (reading_selection_reply, |
1929 | (event->property != 0 ? Qt : Qlambda)); | |
ede4db72 RS |
1930 | } |
1931 | ||
1932 | \f | |
a9f737ee CY |
1933 | /* From a Lisp_Object, return a suitable frame for selection |
1934 | operations. OBJECT may be a frame, a terminal object, or nil | |
1935 | (which stands for the selected frame--or, if that is not an X | |
1936 | frame, the first X display on the list). If no suitable frame can | |
1937 | be found, return NULL. */ | |
1938 | ||
1939 | static struct frame * | |
1940 | frame_for_x_selection (Lisp_Object object) | |
1941 | { | |
5b04e9f9 | 1942 | Lisp_Object tail, frame; |
a9f737ee CY |
1943 | struct frame *f; |
1944 | ||
1945 | if (NILP (object)) | |
1946 | { | |
1947 | f = XFRAME (selected_frame); | |
1948 | if (FRAME_X_P (f) && FRAME_LIVE_P (f)) | |
1949 | return f; | |
1950 | ||
5b04e9f9 | 1951 | FOR_EACH_FRAME (tail, frame) |
a9f737ee | 1952 | { |
5b04e9f9 | 1953 | f = XFRAME (frame); |
a9f737ee CY |
1954 | if (FRAME_X_P (f) && FRAME_LIVE_P (f)) |
1955 | return f; | |
1956 | } | |
1957 | } | |
1958 | else if (TERMINALP (object)) | |
1959 | { | |
1960 | struct terminal *t = get_terminal (object, 1); | |
5b04e9f9 | 1961 | |
a9f737ee | 1962 | if (t->type == output_x_window) |
5b04e9f9 DA |
1963 | FOR_EACH_FRAME (tail, frame) |
1964 | { | |
1965 | f = XFRAME (frame); | |
1966 | if (FRAME_LIVE_P (f) && f->terminal == t) | |
1967 | return f; | |
1968 | } | |
a9f737ee CY |
1969 | } |
1970 | else if (FRAMEP (object)) | |
1971 | { | |
1972 | f = XFRAME (object); | |
1973 | if (FRAME_X_P (f) && FRAME_LIVE_P (f)) | |
1974 | return f; | |
1975 | } | |
1976 | ||
1977 | return NULL; | |
1978 | } | |
1979 | ||
1980 | ||
a0d76c27 | 1981 | DEFUN ("x-own-selection-internal", Fx_own_selection_internal, |
a9f737ee | 1982 | Sx_own_selection_internal, 2, 3, 0, |
abb71cf4 CY |
1983 | doc: /* Assert an X selection of type SELECTION and value VALUE. |
1984 | SELECTION is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
8c1a1077 PJ |
1985 | \(Those are literal upper-case symbol names, since that's what X expects.) |
1986 | VALUE is typically a string, or a cons of two markers, but may be | |
a9f737ee CY |
1987 | anything that the functions on `selection-converter-alist' know about. |
1988 | ||
1989 | FRAME should be a frame that should own the selection. If omitted or | |
bd7da63e GM |
1990 | nil, it defaults to the selected frame. |
1991 | ||
1992 | On Nextstep, FRAME is unused. */) | |
a9f737ee | 1993 | (Lisp_Object selection, Lisp_Object value, Lisp_Object frame) |
ede4db72 | 1994 | { |
a9f737ee CY |
1995 | if (NILP (frame)) frame = selected_frame; |
1996 | if (!FRAME_LIVE_P (XFRAME (frame)) || !FRAME_X_P (XFRAME (frame))) | |
1997 | error ("X selection unavailable for this frame"); | |
1998 | ||
abb71cf4 CY |
1999 | CHECK_SYMBOL (selection); |
2000 | if (NILP (value)) error ("VALUE may not be nil"); | |
a9f737ee | 2001 | x_own_selection (selection, value, frame); |
abb71cf4 | 2002 | return value; |
ede4db72 RS |
2003 | } |
2004 | ||
2005 | ||
2006 | /* Request the selection value from the owner. If we are the owner, | |
2007 | simply return our selection value. If we are not the owner, this | |
2008 | will block until all of the data has arrived. */ | |
2009 | ||
a0d76c27 | 2010 | DEFUN ("x-get-selection-internal", Fx_get_selection_internal, |
a9f737ee | 2011 | Sx_get_selection_internal, 2, 4, 0, |
8c1a1077 | 2012 | doc: /* Return text selected from some X window. |
bd7da63e | 2013 | SELECTION-SYMBOL is typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. |
8c1a1077 | 2014 | \(Those are literal upper-case symbol names, since that's what X expects.) |
bd7da63e GM |
2015 | TARGET-TYPE is the type of data desired, typically `STRING'. |
2016 | ||
2017 | TIME-STAMP is the time to use in the XConvertSelection call for foreign | |
a9f737ee CY |
2018 | selections. If omitted, defaults to the time for the last event. |
2019 | ||
2020 | TERMINAL should be a terminal object or a frame specifying the X | |
2021 | server to query. If omitted or nil, that stands for the selected | |
bd7da63e GM |
2022 | frame's display, or the first available X display. |
2023 | ||
2024 | On Nextstep, TIME-STAMP and TERMINAL are unused. */) | |
a9f737ee CY |
2025 | (Lisp_Object selection_symbol, Lisp_Object target_type, |
2026 | Lisp_Object time_stamp, Lisp_Object terminal) | |
ede4db72 RS |
2027 | { |
2028 | Lisp_Object val = Qnil; | |
2029 | struct gcpro gcpro1, gcpro2; | |
a9f737ee | 2030 | struct frame *f = frame_for_x_selection (terminal); |
ede4db72 | 2031 | GCPRO2 (target_type, val); /* we store newly consed data into these */ |
a9f737ee | 2032 | |
b7826503 | 2033 | CHECK_SYMBOL (selection_symbol); |
a9f737ee CY |
2034 | CHECK_SYMBOL (target_type); |
2035 | if (EQ (target_type, QMULTIPLE)) | |
2036 | error ("Retrieving MULTIPLE selections is currently unimplemented"); | |
2037 | if (!f) | |
2038 | error ("X selection unavailable for this frame"); | |
2039 | ||
2040 | val = x_get_local_selection (selection_symbol, target_type, 1, | |
2041 | FRAME_X_DISPLAY_INFO (f)); | |
ede4db72 | 2042 | |
a9f737ee | 2043 | if (NILP (val) && FRAME_LIVE_P (f)) |
ede4db72 | 2044 | { |
a9f737ee CY |
2045 | Lisp_Object frame; |
2046 | XSETFRAME (frame, f); | |
2047 | RETURN_UNGCPRO (x_get_foreign_selection (selection_symbol, target_type, | |
2048 | time_stamp, frame)); | |
ede4db72 | 2049 | } |
ede4db72 | 2050 | |
abb71cf4 | 2051 | if (CONSP (val) && SYMBOLP (XCAR (val))) |
ede4db72 | 2052 | { |
8e713be6 KR |
2053 | val = XCDR (val); |
2054 | if (CONSP (val) && NILP (XCDR (val))) | |
2055 | val = XCAR (val); | |
ede4db72 | 2056 | } |
abb71cf4 | 2057 | RETURN_UNGCPRO (clean_local_selection_data (val)); |
ede4db72 RS |
2058 | } |
2059 | ||
a0d76c27 | 2060 | DEFUN ("x-disown-selection-internal", Fx_disown_selection_internal, |
a9f737ee | 2061 | Sx_disown_selection_internal, 1, 3, 0, |
8c1a1077 | 2062 | doc: /* If we own the selection SELECTION, disown it. |
a9f737ee CY |
2063 | Disowning it means there is no such selection. |
2064 | ||
bd7da63e GM |
2065 | Sets the last-change time for the selection to TIME-OBJECT (by default |
2066 | the time of the last event). | |
2067 | ||
a9f737ee CY |
2068 | TERMINAL should be a terminal object or a frame specifying the X |
2069 | server to query. If omitted or nil, that stands for the selected | |
bd7da63e GM |
2070 | frame's display, or the first available X display. |
2071 | ||
2072 | On Nextstep, the TIME-OBJECT and TERMINAL arguments are unused. | |
2073 | On MS-DOS, all this does is return non-nil if we own the selection. */) | |
a9f737ee | 2074 | (Lisp_Object selection, Lisp_Object time_object, Lisp_Object terminal) |
ede4db72 | 2075 | { |
ede4db72 RS |
2076 | Time timestamp; |
2077 | Atom selection_atom; | |
31df61d6 AS |
2078 | union { |
2079 | struct selection_input_event sie; | |
2080 | struct input_event ie; | |
2081 | } event; | |
a9f737ee | 2082 | struct frame *f = frame_for_x_selection (terminal); |
5c3a351a | 2083 | struct x_display_info *dpyinfo; |
ede4db72 | 2084 | |
a9f737ee | 2085 | if (!f) |
428a555e KL |
2086 | return Qnil; |
2087 | ||
a9f737ee | 2088 | dpyinfo = FRAME_X_DISPLAY_INFO (f); |
b7826503 | 2089 | CHECK_SYMBOL (selection); |
ede4db72 | 2090 | |
a9f737ee CY |
2091 | /* Don't disown the selection when we're not the owner. */ |
2092 | if (NILP (LOCAL_SELECTION (selection, dpyinfo))) | |
2093 | return Qnil; | |
ede4db72 | 2094 | |
a9f737ee | 2095 | selection_atom = symbol_to_x_atom (dpyinfo, selection); |
ede4db72 | 2096 | |
4d7e6e51 | 2097 | block_input (); |
be44ca6c PE |
2098 | if (NILP (time_object)) |
2099 | timestamp = last_event_timestamp; | |
2100 | else | |
2101 | CONS_TO_INTEGER (time_object, Time, timestamp); | |
a9f737ee | 2102 | XSetSelectionOwner (dpyinfo->display, selection_atom, None, timestamp); |
4d7e6e51 | 2103 | unblock_input (); |
ede4db72 | 2104 | |
eb8c3be9 | 2105 | /* It doesn't seem to be guaranteed that a SelectionClear event will be |
ede4db72 RS |
2106 | generated for a window which owns the selection when that window sets |
2107 | the selection owner to None. The NCD server does, the MIT Sun4 server | |
2108 | doesn't. So we synthesize one; this means we might get two, but | |
2109 | that's ok, because the second one won't have any effect. */ | |
a9f737ee | 2110 | SELECTION_EVENT_DISPLAY (&event.sie) = dpyinfo->display; |
31df61d6 AS |
2111 | SELECTION_EVENT_SELECTION (&event.sie) = selection_atom; |
2112 | SELECTION_EVENT_TIME (&event.sie) = timestamp; | |
2113 | x_handle_selection_clear (&event.ie); | |
ede4db72 RS |
2114 | |
2115 | return Qt; | |
2116 | } | |
2117 | ||
ede4db72 | 2118 | DEFUN ("x-selection-owner-p", Fx_selection_owner_p, Sx_selection_owner_p, |
a9f737ee | 2119 | 0, 2, 0, |
8c1a1077 PJ |
2120 | doc: /* Whether the current Emacs process owns the given X Selection. |
2121 | The arg should be the name of the selection in question, typically one of | |
2122 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2123 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2124 | For convenience, the symbol nil is the same as `PRIMARY', | |
a9f737ee CY |
2125 | and t is the same as `SECONDARY'. |
2126 | ||
2127 | TERMINAL should be a terminal object or a frame specifying the X | |
2128 | server to query. If omitted or nil, that stands for the selected | |
bd7da63e GM |
2129 | frame's display, or the first available X display. |
2130 | ||
2131 | On Nextstep, TERMINAL is unused. */) | |
a9f737ee | 2132 | (Lisp_Object selection, Lisp_Object terminal) |
ede4db72 | 2133 | { |
a9f737ee CY |
2134 | struct frame *f = frame_for_x_selection (terminal); |
2135 | ||
b7826503 | 2136 | CHECK_SYMBOL (selection); |
ede4db72 RS |
2137 | if (EQ (selection, Qnil)) selection = QPRIMARY; |
2138 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
1b65481e | 2139 | |
a9f737ee CY |
2140 | if (f && !NILP (LOCAL_SELECTION (selection, FRAME_X_DISPLAY_INFO (f)))) |
2141 | return Qt; | |
2142 | else | |
ede4db72 | 2143 | return Qnil; |
ede4db72 RS |
2144 | } |
2145 | ||
2146 | DEFUN ("x-selection-exists-p", Fx_selection_exists_p, Sx_selection_exists_p, | |
a9f737ee CY |
2147 | 0, 2, 0, |
2148 | doc: /* Whether there is an owner for the given X selection. | |
2149 | SELECTION should be the name of the selection in question, typically | |
3c9dfce6 CY |
2150 | one of the symbols `PRIMARY', `SECONDARY', `CLIPBOARD', or |
2151 | `CLIPBOARD_MANAGER' (X expects these literal upper-case names.) The | |
2152 | symbol nil is the same as `PRIMARY', and t is the same as `SECONDARY'. | |
a9f737ee CY |
2153 | |
2154 | TERMINAL should be a terminal object or a frame specifying the X | |
2155 | server to query. If omitted or nil, that stands for the selected | |
bd7da63e GM |
2156 | frame's display, or the first available X display. |
2157 | ||
2158 | On Nextstep, TERMINAL is unused. */) | |
a9f737ee | 2159 | (Lisp_Object selection, Lisp_Object terminal) |
ede4db72 RS |
2160 | { |
2161 | Window owner; | |
356ba514 | 2162 | Atom atom; |
a9f737ee CY |
2163 | struct frame *f = frame_for_x_selection (terminal); |
2164 | struct x_display_info *dpyinfo; | |
b8c70430 | 2165 | |
b7826503 | 2166 | CHECK_SYMBOL (selection); |
356ba514 RS |
2167 | if (EQ (selection, Qnil)) selection = QPRIMARY; |
2168 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
a9f737ee CY |
2169 | |
2170 | if (!f) | |
356ba514 | 2171 | return Qnil; |
a9f737ee CY |
2172 | |
2173 | dpyinfo = FRAME_X_DISPLAY_INFO (f); | |
2174 | ||
2175 | if (!NILP (LOCAL_SELECTION (selection, dpyinfo))) | |
2176 | return Qt; | |
2177 | ||
2178 | atom = symbol_to_x_atom (dpyinfo, selection); | |
2179 | if (atom == 0) return Qnil; | |
4d7e6e51 | 2180 | block_input (); |
a9f737ee | 2181 | owner = XGetSelectionOwner (dpyinfo->display, atom); |
4d7e6e51 | 2182 | unblock_input (); |
ede4db72 RS |
2183 | return (owner ? Qt : Qnil); |
2184 | } | |
2185 | ||
1dd3c2d9 | 2186 | \f |
4b80f674 CY |
2187 | /* Send clipboard manager a SAVE_TARGETS request with a UTF8_STRING |
2188 | property (http://www.freedesktop.org/wiki/ClipboardManager). */ | |
a9f737ee | 2189 | |
4b80f674 CY |
2190 | static Lisp_Object |
2191 | x_clipboard_manager_save (Lisp_Object frame) | |
a9f737ee CY |
2192 | { |
2193 | struct frame *f = XFRAME (frame); | |
4b80f674 | 2194 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
a9f737ee CY |
2195 | Atom data = dpyinfo->Xatom_UTF8_STRING; |
2196 | ||
2197 | XChangeProperty (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), | |
2198 | dpyinfo->Xatom_EMACS_TMP, | |
2199 | dpyinfo->Xatom_ATOM, 32, PropModeReplace, | |
2200 | (unsigned char *) &data, 1); | |
2201 | x_get_foreign_selection (QCLIPBOARD_MANAGER, QSAVE_TARGETS, | |
2202 | Qnil, frame); | |
4b80f674 CY |
2203 | return Qt; |
2204 | } | |
2205 | ||
2206 | /* Error handler for x_clipboard_manager_save_frame. */ | |
2207 | ||
2208 | static Lisp_Object | |
2209 | x_clipboard_manager_error_1 (Lisp_Object err) | |
2210 | { | |
2211 | Lisp_Object args[2]; | |
2212 | args[0] = build_string ("X clipboard manager error: %s\n\ | |
2213 | If the problem persists, set `x-select-enable-clipboard-manager' to nil."); | |
2214 | args[1] = CAR (CDR (err)); | |
2215 | Fmessage (2, args); | |
2216 | return Qnil; | |
2217 | } | |
2218 | ||
2219 | /* Error handler for x_clipboard_manager_save_all. */ | |
2220 | ||
2221 | static Lisp_Object | |
2222 | x_clipboard_manager_error_2 (Lisp_Object err) | |
2223 | { | |
2224 | fprintf (stderr, "Error saving to X clipboard manager.\n\ | |
2225 | If the problem persists, set `x-select-enable-clipboard-manager' \ | |
2226 | to nil.\n"); | |
2227 | return Qnil; | |
a9f737ee CY |
2228 | } |
2229 | ||
1dd3c2d9 CY |
2230 | /* Called from delete_frame: save any clipboard owned by FRAME to the |
2231 | clipboard manager. Do nothing if FRAME does not own the clipboard, | |
2232 | or if no clipboard manager is present. */ | |
2233 | ||
2234 | void | |
2235 | x_clipboard_manager_save_frame (Lisp_Object frame) | |
a9f737ee | 2236 | { |
1dd3c2d9 CY |
2237 | struct frame *f; |
2238 | ||
4b80f674 CY |
2239 | if (!NILP (Vx_select_enable_clipboard_manager) |
2240 | && FRAMEP (frame) | |
1dd3c2d9 CY |
2241 | && (f = XFRAME (frame), FRAME_X_P (f)) |
2242 | && FRAME_LIVE_P (f)) | |
a9f737ee | 2243 | { |
1dd3c2d9 CY |
2244 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
2245 | Lisp_Object local_selection | |
2246 | = LOCAL_SELECTION (QCLIPBOARD, dpyinfo); | |
2247 | ||
2248 | if (!NILP (local_selection) | |
2249 | && EQ (frame, XCAR (XCDR (XCDR (XCDR (local_selection))))) | |
2250 | && XGetSelectionOwner (dpyinfo->display, | |
2251 | dpyinfo->Xatom_CLIPBOARD_MANAGER)) | |
4b80f674 CY |
2252 | internal_condition_case_1 (x_clipboard_manager_save, frame, Qt, |
2253 | x_clipboard_manager_error_1); | |
a9f737ee | 2254 | } |
1dd3c2d9 CY |
2255 | } |
2256 | ||
2257 | /* Called from Fkill_emacs: save any clipboard owned by FRAME to the | |
2258 | clipboard manager. Do nothing if FRAME does not own the clipboard, | |
2259 | or if no clipboard manager is present. */ | |
2260 | ||
2261 | void | |
2262 | x_clipboard_manager_save_all (void) | |
2263 | { | |
2264 | /* Loop through all X displays, saving owned clipboards. */ | |
2265 | struct x_display_info *dpyinfo; | |
2266 | Lisp_Object local_selection, local_frame; | |
4b80f674 CY |
2267 | |
2268 | if (NILP (Vx_select_enable_clipboard_manager)) | |
2269 | return; | |
2270 | ||
1dd3c2d9 | 2271 | for (dpyinfo = x_display_list; dpyinfo; dpyinfo = dpyinfo->next) |
a9f737ee | 2272 | { |
1dd3c2d9 CY |
2273 | local_selection = LOCAL_SELECTION (QCLIPBOARD, dpyinfo); |
2274 | if (NILP (local_selection) | |
2275 | || !XGetSelectionOwner (dpyinfo->display, | |
2276 | dpyinfo->Xatom_CLIPBOARD_MANAGER)) | |
2277 | continue; | |
a9f737ee | 2278 | |
1dd3c2d9 CY |
2279 | local_frame = XCAR (XCDR (XCDR (XCDR (local_selection)))); |
2280 | if (FRAME_LIVE_P (XFRAME (local_frame))) | |
3c9dfce6 CY |
2281 | { |
2282 | Lisp_Object args[1]; | |
2283 | args[0] = build_string ("Saving clipboard to X clipboard manager..."); | |
2284 | Fmessage (1, args); | |
2285 | ||
2286 | internal_condition_case_1 (x_clipboard_manager_save, local_frame, | |
2287 | Qt, x_clipboard_manager_error_2); | |
2288 | } | |
1dd3c2d9 | 2289 | } |
a9f737ee CY |
2290 | } |
2291 | ||
ede4db72 | 2292 | \f |
1fb3821b JD |
2293 | /*********************************************************************** |
2294 | Drag and drop support | |
2295 | ***********************************************************************/ | |
2296 | /* Check that lisp values are of correct type for x_fill_property_data. | |
2297 | That is, number, string or a cons with two numbers (low and high 16 | |
44f730c8 PE |
2298 | bit parts of a 32 bit number). Return the number of items in DATA, |
2299 | or -1 if there is an error. */ | |
1fb3821b JD |
2300 | |
2301 | int | |
971de7fb | 2302 | x_check_property_data (Lisp_Object data) |
1fb3821b JD |
2303 | { |
2304 | Lisp_Object iter; | |
2305 | int size = 0; | |
2306 | ||
44f730c8 | 2307 | for (iter = data; CONSP (iter); iter = XCDR (iter)) |
1fb3821b JD |
2308 | { |
2309 | Lisp_Object o = XCAR (iter); | |
2310 | ||
2311 | if (! NUMBERP (o) && ! STRINGP (o) && ! CONSP (o)) | |
44f730c8 | 2312 | return -1; |
1fb3821b JD |
2313 | else if (CONSP (o) && |
2314 | (! NUMBERP (XCAR (o)) || ! NUMBERP (XCDR (o)))) | |
44f730c8 | 2315 | return -1; |
864d7ce7 PE |
2316 | if (size == INT_MAX) |
2317 | return -1; | |
44f730c8 | 2318 | size++; |
1fb3821b JD |
2319 | } |
2320 | ||
2321 | return size; | |
2322 | } | |
2323 | ||
2324 | /* Convert lisp values to a C array. Values may be a number, a string | |
2325 | which is taken as an X atom name and converted to the atom value, or | |
2326 | a cons containing the two 16 bit parts of a 32 bit number. | |
2327 | ||
2328 | DPY is the display use to look up X atoms. | |
2329 | DATA is a Lisp list of values to be converted. | |
2330 | RET is the C array that contains the converted values. It is assumed | |
ff59904a | 2331 | it is big enough to hold all values. |
e22cf39c JD |
2332 | FORMAT is 8, 16 or 32 and denotes char/short/long for each C value to |
2333 | be stored in RET. Note that long is used for 32 even if long is more | |
2334 | than 32 bits (see man pages for XChangeProperty, XGetWindowProperty and | |
2335 | XClientMessageEvent). */ | |
1fb3821b JD |
2336 | |
2337 | void | |
971de7fb | 2338 | x_fill_property_data (Display *dpy, Lisp_Object data, void *ret, int format) |
1fb3821b | 2339 | { |
e22cf39c JD |
2340 | long val; |
2341 | long *d32 = (long *) ret; | |
2342 | short *d16 = (short *) ret; | |
2343 | char *d08 = (char *) ret; | |
1fb3821b JD |
2344 | Lisp_Object iter; |
2345 | ||
2346 | for (iter = data; CONSP (iter); iter = XCDR (iter)) | |
2347 | { | |
2348 | Lisp_Object o = XCAR (iter); | |
2349 | ||
be44ca6c PE |
2350 | if (INTEGERP (o) || FLOATP (o) || CONSP (o)) |
2351 | val = cons_to_signed (o, LONG_MIN, LONG_MAX); | |
1fb3821b JD |
2352 | else if (STRINGP (o)) |
2353 | { | |
4d7e6e51 | 2354 | block_input (); |
51b59d79 | 2355 | val = (long) XInternAtom (dpy, SSDATA (o), False); |
4d7e6e51 | 2356 | unblock_input (); |
1fb3821b JD |
2357 | } |
2358 | else | |
2359 | error ("Wrong type, must be string, number or cons"); | |
2360 | ||
2361 | if (format == 8) | |
be44ca6c PE |
2362 | { |
2363 | if (CHAR_MIN <= val && val <= CHAR_MAX) | |
2364 | *d08++ = val; | |
2365 | else | |
2366 | error ("Out of 'char' range"); | |
2367 | } | |
1fb3821b | 2368 | else if (format == 16) |
be44ca6c PE |
2369 | { |
2370 | if (SHRT_MIN <= val && val <= SHRT_MAX) | |
2371 | *d16++ = val; | |
2372 | else | |
2373 | error ("Out of 'short' range"); | |
2374 | } | |
1fb3821b JD |
2375 | else |
2376 | *d32++ = val; | |
2377 | } | |
2378 | } | |
2379 | ||
2380 | /* Convert an array of C values to a Lisp list. | |
2381 | F is the frame to be used to look up X atoms if the TYPE is XA_ATOM. | |
2382 | DATA is a C array of values to be converted. | |
2383 | TYPE is the type of the data. Only XA_ATOM is special, it converts | |
da6062e6 | 2384 | each number in DATA to its corresponding X atom as a symbol. |
1fb3821b JD |
2385 | FORMAT is 8, 16 or 32 and gives the size in bits for each C value to |
2386 | be stored in RET. | |
2387 | SIZE is the number of elements in DATA. | |
2388 | ||
b8d6f4af JD |
2389 | Important: When format is 32, data should contain an array of int, |
2390 | not an array of long as the X library returns. This makes a difference | |
2391 | when sizeof(long) != sizeof(int). | |
2392 | ||
1fb3821b JD |
2393 | Also see comment for selection_data_to_lisp_data above. */ |
2394 | ||
2395 | Lisp_Object | |
eec47d6b DN |
2396 | x_property_data_to_lisp (struct frame *f, const unsigned char *data, |
2397 | Atom type, int format, long unsigned int size) | |
1fb3821b | 2398 | { |
864d7ce7 PE |
2399 | ptrdiff_t format_bytes = format >> 3; |
2400 | if (PTRDIFF_MAX / format_bytes < size) | |
2401 | memory_full (SIZE_MAX); | |
1fb3821b | 2402 | return selection_data_to_lisp_data (FRAME_X_DISPLAY (f), |
864d7ce7 | 2403 | data, size * format_bytes, type, format); |
1fb3821b JD |
2404 | } |
2405 | ||
31f16913 | 2406 | /* Get the mouse position in frame relative coordinates. */ |
1fb3821b JD |
2407 | |
2408 | static void | |
971de7fb | 2409 | mouse_position_for_drop (FRAME_PTR f, int *x, int *y) |
1fb3821b JD |
2410 | { |
2411 | Window root, dummy_window; | |
2412 | int dummy; | |
2413 | ||
4d7e6e51 | 2414 | block_input (); |
1fb3821b JD |
2415 | |
2416 | XQueryPointer (FRAME_X_DISPLAY (f), | |
2417 | DefaultRootWindow (FRAME_X_DISPLAY (f)), | |
2418 | ||
2419 | /* The root window which contains the pointer. */ | |
2420 | &root, | |
2421 | ||
2422 | /* Window pointer is on, not used */ | |
2423 | &dummy_window, | |
2424 | ||
2425 | /* The position on that root window. */ | |
2426 | x, y, | |
2427 | ||
2428 | /* x/y in dummy_window coordinates, not used. */ | |
2429 | &dummy, &dummy, | |
2430 | ||
2431 | /* Modifier keys and pointer buttons, about which | |
2432 | we don't care. */ | |
2433 | (unsigned int *) &dummy); | |
2434 | ||
2435 | ||
2436 | /* Absolute to relative. */ | |
2437 | *x -= f->left_pos + FRAME_OUTER_TO_INNER_DIFF_X (f); | |
2438 | *y -= f->top_pos + FRAME_OUTER_TO_INNER_DIFF_Y (f); | |
2439 | ||
4d7e6e51 | 2440 | unblock_input (); |
1fb3821b JD |
2441 | } |
2442 | ||
2443 | DEFUN ("x-get-atom-name", Fx_get_atom_name, | |
2444 | Sx_get_atom_name, 1, 2, 0, | |
2445 | doc: /* Return the X atom name for VALUE as a string. | |
2446 | VALUE may be a number or a cons where the car is the upper 16 bits and | |
2447 | the cdr is the lower 16 bits of a 32 bit value. | |
2448 | Use the display for FRAME or the current frame if FRAME is not given or nil. | |
2449 | ||
2450 | If the value is 0 or the atom is not known, return the empty string. */) | |
5842a27b | 2451 | (Lisp_Object value, Lisp_Object frame) |
1fb3821b JD |
2452 | { |
2453 | struct frame *f = check_x_frame (frame); | |
2454 | char *name = 0; | |
42ca4633 | 2455 | char empty[] = ""; |
1fb3821b | 2456 | Lisp_Object ret = Qnil; |
1fb3821b JD |
2457 | Display *dpy = FRAME_X_DISPLAY (f); |
2458 | Atom atom; | |
c525d842 | 2459 | int had_errors; |
1fb3821b | 2460 | |
be44ca6c | 2461 | CONS_TO_INTEGER (value, Atom, atom); |
1fb3821b | 2462 | |
4d7e6e51 | 2463 | block_input (); |
9ba8e10d | 2464 | x_catch_errors (dpy); |
42ca4633 | 2465 | name = atom ? XGetAtomName (dpy, atom) : empty; |
c525d842 CY |
2466 | had_errors = x_had_errors_p (dpy); |
2467 | x_uncatch_errors (); | |
1fb3821b | 2468 | |
c525d842 | 2469 | if (!had_errors) |
3a5077c5 | 2470 | ret = build_string (name); |
1fb3821b | 2471 | |
1fb3821b | 2472 | if (atom && name) XFree (name); |
8b3ad112 | 2473 | if (NILP (ret)) ret = empty_unibyte_string; |
1fb3821b | 2474 | |
4d7e6e51 | 2475 | unblock_input (); |
1fb3821b JD |
2476 | |
2477 | return ret; | |
2478 | } | |
2479 | ||
9fc68699 JD |
2480 | DEFUN ("x-register-dnd-atom", Fx_register_dnd_atom, |
2481 | Sx_register_dnd_atom, 1, 2, 0, | |
2482 | doc: /* Request that dnd events are made for ClientMessages with ATOM. | |
2483 | ATOM can be a symbol or a string. The ATOM is interned on the display that | |
2484 | FRAME is on. If FRAME is nil, the selected frame is used. */) | |
5842a27b | 2485 | (Lisp_Object atom, Lisp_Object frame) |
9fc68699 JD |
2486 | { |
2487 | Atom x_atom; | |
2488 | struct frame *f = check_x_frame (frame); | |
ac82cc6a | 2489 | ptrdiff_t i; |
9fc68699 JD |
2490 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
2491 | ||
2492 | ||
2493 | if (SYMBOLP (atom)) | |
a9f737ee | 2494 | x_atom = symbol_to_x_atom (dpyinfo, atom); |
9fc68699 JD |
2495 | else if (STRINGP (atom)) |
2496 | { | |
4d7e6e51 | 2497 | block_input (); |
51b59d79 | 2498 | x_atom = XInternAtom (FRAME_X_DISPLAY (f), SSDATA (atom), False); |
4d7e6e51 | 2499 | unblock_input (); |
9fc68699 JD |
2500 | } |
2501 | else | |
2502 | error ("ATOM must be a symbol or a string"); | |
2503 | ||
db9cd97a | 2504 | for (i = 0; i < dpyinfo->x_dnd_atoms_length; ++i) |
9fc68699 JD |
2505 | if (dpyinfo->x_dnd_atoms[i] == x_atom) |
2506 | return Qnil; | |
2507 | ||
db9cd97a | 2508 | if (dpyinfo->x_dnd_atoms_length == dpyinfo->x_dnd_atoms_size) |
a69fbedb PE |
2509 | dpyinfo->x_dnd_atoms = |
2510 | xpalloc (dpyinfo->x_dnd_atoms, &dpyinfo->x_dnd_atoms_size, | |
2511 | 1, -1, sizeof *dpyinfo->x_dnd_atoms); | |
9fc68699 JD |
2512 | |
2513 | dpyinfo->x_dnd_atoms[dpyinfo->x_dnd_atoms_length++] = x_atom; | |
2514 | return Qnil; | |
2515 | } | |
2516 | ||
2517 | /* Convert an XClientMessageEvent to a Lisp event of type DRAG_N_DROP_EVENT. */ | |
1fb3821b JD |
2518 | |
2519 | int | |
5e617bc2 JB |
2520 | x_handle_dnd_message (struct frame *f, XClientMessageEvent *event, |
2521 | struct x_display_info *dpyinfo, struct input_event *bufp) | |
1fb3821b JD |
2522 | { |
2523 | Lisp_Object vec; | |
2524 | Lisp_Object frame; | |
e22cf39c JD |
2525 | /* format 32 => size 5, format 16 => size 10, format 8 => size 20 */ |
2526 | unsigned long size = 160/event->format; | |
1fb3821b | 2527 | int x, y; |
31f16913 | 2528 | unsigned char *data = (unsigned char *) event->data.b; |
252c5ee1 | 2529 | int idata[5]; |
ac82cc6a | 2530 | ptrdiff_t i; |
9fc68699 | 2531 | |
db9cd97a | 2532 | for (i = 0; i < dpyinfo->x_dnd_atoms_length; ++i) |
9fc68699 JD |
2533 | if (dpyinfo->x_dnd_atoms[i] == event->message_type) break; |
2534 | ||
2535 | if (i == dpyinfo->x_dnd_atoms_length) return 0; | |
1fb3821b JD |
2536 | |
2537 | XSETFRAME (frame, f); | |
2538 | ||
31f16913 JD |
2539 | /* On a 64 bit machine, the event->data.l array members are 64 bits (long), |
2540 | but the x_property_data_to_lisp (or rather selection_data_to_lisp_data) | |
2541 | function expects them to be of size int (i.e. 32). So to be able to | |
2542 | use that function, put the data in the form it expects if format is 32. */ | |
2543 | ||
2172544b | 2544 | if (32 < BITS_PER_LONG && event->format == 32) |
31f16913 | 2545 | { |
31f16913 | 2546 | for (i = 0; i < 5; ++i) /* There are only 5 longs in a ClientMessage. */ |
864d7ce7 | 2547 | idata[i] = event->data.l[i]; |
31f16913 JD |
2548 | data = (unsigned char *) idata; |
2549 | } | |
2550 | ||
d2f14999 | 2551 | vec = Fmake_vector (make_number (4), Qnil); |
3ae565b3 SM |
2552 | ASET (vec, 0, SYMBOL_NAME (x_atom_to_symbol (FRAME_X_DISPLAY (f), |
2553 | event->message_type))); | |
2554 | ASET (vec, 1, frame); | |
2555 | ASET (vec, 2, make_number (event->format)); | |
2556 | ASET (vec, 3, x_property_data_to_lisp (f, | |
2557 | data, | |
2558 | event->message_type, | |
2559 | event->format, | |
2560 | size)); | |
1fb3821b JD |
2561 | |
2562 | mouse_position_for_drop (f, &x, &y); | |
2563 | bufp->kind = DRAG_N_DROP_EVENT; | |
862c94ca | 2564 | bufp->frame_or_window = frame; |
1fb3821b JD |
2565 | bufp->timestamp = CurrentTime; |
2566 | bufp->x = make_number (x); | |
2567 | bufp->y = make_number (y); | |
862c94ca | 2568 | bufp->arg = vec; |
1fb3821b JD |
2569 | bufp->modifiers = 0; |
2570 | ||
2571 | return 1; | |
2572 | } | |
2573 | ||
2bf7d27a | 2574 | DEFUN ("x-send-client-message", Fx_send_client_message, |
1fb3821b JD |
2575 | Sx_send_client_message, 6, 6, 0, |
2576 | doc: /* Send a client message of MESSAGE-TYPE to window DEST on DISPLAY. | |
2577 | ||
2578 | For DISPLAY, specify either a frame or a display name (a string). | |
2579 | If DISPLAY is nil, that stands for the selected frame's display. | |
2580 | DEST may be a number, in which case it is a Window id. The value 0 may | |
2581 | be used to send to the root window of the DISPLAY. | |
2582 | If DEST is a cons, it is converted to a 32 bit number | |
2583 | with the high 16 bits from the car and the lower 16 bit from the cdr. That | |
2584 | number is then used as a window id. | |
2585 | If DEST is a frame the event is sent to the outer window of that frame. | |
69785ad0 | 2586 | A value of nil means the currently selected frame. |
1fb3821b JD |
2587 | If DEST is the string "PointerWindow" the event is sent to the window that |
2588 | contains the pointer. If DEST is the string "InputFocus" the event is | |
2589 | sent to the window that has the input focus. | |
2590 | FROM is the frame sending the event. Use nil for currently selected frame. | |
2591 | MESSAGE-TYPE is the name of an Atom as a string. | |
2592 | FORMAT must be one of 8, 16 or 32 and determines the size of the values in | |
2593 | bits. VALUES is a list of numbers, cons and/or strings containing the values | |
2594 | to send. If a value is a string, it is converted to an Atom and the value of | |
2595 | the Atom is sent. If a value is a cons, it is converted to a 32 bit number | |
2596 | with the high 16 bits from the car and the lower 16 bit from the cdr. | |
2597 | If more values than fits into the event is given, the excessive values | |
2598 | are ignored. */) | |
5e617bc2 JB |
2599 | (Lisp_Object display, Lisp_Object dest, Lisp_Object from, |
2600 | Lisp_Object message_type, Lisp_Object format, Lisp_Object values) | |
2d9074ba JD |
2601 | { |
2602 | struct x_display_info *dpyinfo = check_x_display_info (display); | |
2603 | ||
933e29ff | 2604 | CHECK_STRING (message_type); |
5e617bc2 JB |
2605 | x_send_client_event (display, dest, from, |
2606 | XInternAtom (dpyinfo->display, | |
2607 | SSDATA (message_type), | |
2608 | False), | |
2609 | format, values); | |
2d9074ba JD |
2610 | |
2611 | return Qnil; | |
2612 | } | |
2613 | ||
2614 | void | |
5e617bc2 JB |
2615 | x_send_client_event (Lisp_Object display, Lisp_Object dest, Lisp_Object from, |
2616 | Atom message_type, Lisp_Object format, Lisp_Object values) | |
1fb3821b JD |
2617 | { |
2618 | struct x_display_info *dpyinfo = check_x_display_info (display); | |
2619 | Window wdest; | |
2620 | XEvent event; | |
1fb3821b | 2621 | struct frame *f = check_x_frame (from); |
1fb3821b JD |
2622 | int to_root; |
2623 | ||
1fb3821b JD |
2624 | CHECK_NUMBER (format); |
2625 | CHECK_CONS (values); | |
2626 | ||
2627 | if (x_check_property_data (values) == -1) | |
2628 | error ("Bad data in VALUES, must be number, cons or string"); | |
2629 | ||
d311d28c | 2630 | if (XINT (format) != 8 && XINT (format) != 16 && XINT (format) != 32) |
1fb3821b | 2631 | error ("FORMAT must be one of 8, 16 or 32"); |
a0ecb2ac | 2632 | |
d311d28c PE |
2633 | event.xclient.type = ClientMessage; |
2634 | event.xclient.format = XINT (format); | |
2635 | ||
1fb3821b JD |
2636 | if (FRAMEP (dest) || NILP (dest)) |
2637 | { | |
2638 | struct frame *fdest = check_x_frame (dest); | |
2639 | wdest = FRAME_OUTER_WINDOW (fdest); | |
2640 | } | |
2641 | else if (STRINGP (dest)) | |
2642 | { | |
42a5b22f | 2643 | if (strcmp (SSDATA (dest), "PointerWindow") == 0) |
1fb3821b | 2644 | wdest = PointerWindow; |
42a5b22f | 2645 | else if (strcmp (SSDATA (dest), "InputFocus") == 0) |
1fb3821b JD |
2646 | wdest = InputFocus; |
2647 | else | |
2648 | error ("DEST as a string must be one of PointerWindow or InputFocus"); | |
2649 | } | |
be44ca6c PE |
2650 | else if (INTEGERP (dest) || FLOATP (dest) || CONSP (dest)) |
2651 | CONS_TO_INTEGER (dest, Window, wdest); | |
1fb3821b JD |
2652 | else |
2653 | error ("DEST must be a frame, nil, string, number or cons"); | |
2654 | ||
2655 | if (wdest == 0) wdest = dpyinfo->root_window; | |
2656 | to_root = wdest == dpyinfo->root_window; | |
2657 | ||
4d7e6e51 | 2658 | block_input (); |
1fb3821b | 2659 | |
2d9074ba | 2660 | event.xclient.message_type = message_type; |
1fb3821b JD |
2661 | event.xclient.display = dpyinfo->display; |
2662 | ||
2663 | /* Some clients (metacity for example) expects sending window to be here | |
2664 | when sending to the root window. */ | |
2665 | event.xclient.window = to_root ? FRAME_OUTER_WINDOW (f) : wdest; | |
2666 | ||
6e816df5 | 2667 | |
1fb3821b JD |
2668 | memset (event.xclient.data.b, 0, sizeof (event.xclient.data.b)); |
2669 | x_fill_property_data (dpyinfo->display, values, event.xclient.data.b, | |
2670 | event.xclient.format); | |
2671 | ||
2672 | /* If event mask is 0 the event is sent to the client that created | |
2673 | the destination window. But if we are sending to the root window, | |
2674 | there is no such client. Then we set the event mask to 0xffff. The | |
2675 | event then goes to clients selecting for events on the root window. */ | |
9ba8e10d | 2676 | x_catch_errors (dpyinfo->display); |
1fb3821b JD |
2677 | { |
2678 | int propagate = to_root ? False : True; | |
2679 | unsigned mask = to_root ? 0xffff : 0; | |
2680 | XSendEvent (dpyinfo->display, wdest, propagate, mask, &event); | |
2681 | XFlush (dpyinfo->display); | |
2682 | } | |
4545fa20 | 2683 | x_uncatch_errors (); |
4d7e6e51 | 2684 | unblock_input (); |
1fb3821b JD |
2685 | } |
2686 | ||
2687 | \f | |
ede4db72 | 2688 | void |
971de7fb | 2689 | syms_of_xselect (void) |
ede4db72 | 2690 | { |
ede4db72 RS |
2691 | defsubr (&Sx_get_selection_internal); |
2692 | defsubr (&Sx_own_selection_internal); | |
2693 | defsubr (&Sx_disown_selection_internal); | |
2694 | defsubr (&Sx_selection_owner_p); | |
2695 | defsubr (&Sx_selection_exists_p); | |
2696 | ||
1fb3821b JD |
2697 | defsubr (&Sx_get_atom_name); |
2698 | defsubr (&Sx_send_client_message); | |
9fc68699 | 2699 | defsubr (&Sx_register_dnd_atom); |
1fb3821b | 2700 | |
ede4db72 RS |
2701 | reading_selection_reply = Fcons (Qnil, Qnil); |
2702 | staticpro (&reading_selection_reply); | |
2703 | reading_selection_window = 0; | |
2704 | reading_which_selection = 0; | |
2705 | ||
2706 | property_change_wait_list = 0; | |
2f65feb6 | 2707 | prop_location_identifier = 0; |
ede4db72 RS |
2708 | property_change_reply = Fcons (Qnil, Qnil); |
2709 | staticpro (&property_change_reply); | |
2710 | ||
e067f0c1 CY |
2711 | converted_selections = NULL; |
2712 | conversion_fail_tag = None; | |
2713 | ||
29208e82 | 2714 | DEFVAR_LISP ("selection-converter-alist", Vselection_converter_alist, |
8c1a1077 PJ |
2715 | doc: /* An alist associating X Windows selection-types with functions. |
2716 | These functions are called to convert the selection, with three args: | |
2717 | the name of the selection (typically `PRIMARY', `SECONDARY', or `CLIPBOARD'); | |
2718 | a desired type to which the selection should be converted; | |
2719 | and the local selection value (whatever was given to `x-own-selection'). | |
2720 | ||
2721 | The function should return the value to send to the X server | |
2722 | \(typically a string). A return value of nil | |
2723 | means that the conversion could not be done. | |
2724 | A return value which is the symbol `NULL' | |
2725 | means that a side-effect was executed, | |
2726 | and there is no meaningful selection value. */); | |
ede4db72 RS |
2727 | Vselection_converter_alist = Qnil; |
2728 | ||
29208e82 | 2729 | DEFVAR_LISP ("x-lost-selection-functions", Vx_lost_selection_functions, |
8c1a1077 PJ |
2730 | doc: /* A list of functions to be called when Emacs loses an X selection. |
2731 | \(This happens when some other X client makes its own selection | |
2732 | or when a Lisp program explicitly clears the selection.) | |
2733 | The functions are called with one argument, the selection type | |
2734 | \(a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'). */); | |
c917a8de | 2735 | Vx_lost_selection_functions = Qnil; |
ede4db72 | 2736 | |
29208e82 | 2737 | DEFVAR_LISP ("x-sent-selection-functions", Vx_sent_selection_functions, |
8c1a1077 | 2738 | doc: /* A list of functions to be called when Emacs answers a selection request. |
e067f0c1 | 2739 | The functions are called with three arguments: |
8c1a1077 PJ |
2740 | - the selection name (typically `PRIMARY', `SECONDARY', or `CLIPBOARD'); |
2741 | - the selection-type which Emacs was asked to convert the | |
2742 | selection into before sending (for example, `STRING' or `LENGTH'); | |
2743 | - a flag indicating success or failure for responding to the request. | |
2744 | We might have failed (and declined the request) for any number of reasons, | |
2745 | including being asked for a selection that we no longer own, or being asked | |
2746 | to convert into a type that we don't know about or that is inappropriate. | |
2747 | This hook doesn't let you change the behavior of Emacs's selection replies, | |
2748 | it merely informs you that they have happened. */); | |
c917a8de | 2749 | Vx_sent_selection_functions = Qnil; |
ede4db72 | 2750 | |
4b80f674 CY |
2751 | DEFVAR_LISP ("x-select-enable-clipboard-manager", |
2752 | Vx_select_enable_clipboard_manager, | |
2753 | doc: /* Whether to enable X clipboard manager support. | |
2754 | If non-nil, then whenever Emacs is killed or an Emacs frame is deleted | |
2755 | while owning the X clipboard, the clipboard contents are saved to the | |
2756 | clipboard manager if one is present. */); | |
2757 | Vx_select_enable_clipboard_manager = Qt; | |
2758 | ||
29208e82 | 2759 | DEFVAR_INT ("x-selection-timeout", x_selection_timeout, |
8c1a1077 PJ |
2760 | doc: /* Number of milliseconds to wait for a selection reply. |
2761 | If the selection owner doesn't reply in this time, we give up. | |
2762 | A value of 0 means wait as long as necessary. This is initialized from the | |
2763 | \"*selectionTimeout\" resource. */); | |
ede4db72 RS |
2764 | x_selection_timeout = 0; |
2765 | ||
9852377f | 2766 | /* QPRIMARY is defined in keyboard.c. */ |
f3d4e0a4 CY |
2767 | DEFSYM (QSECONDARY, "SECONDARY"); |
2768 | DEFSYM (QSTRING, "STRING"); | |
2769 | DEFSYM (QINTEGER, "INTEGER"); | |
2770 | DEFSYM (QCLIPBOARD, "CLIPBOARD"); | |
2771 | DEFSYM (QTIMESTAMP, "TIMESTAMP"); | |
2772 | DEFSYM (QTEXT, "TEXT"); | |
2773 | DEFSYM (QCOMPOUND_TEXT, "COMPOUND_TEXT"); | |
2774 | DEFSYM (QUTF8_STRING, "UTF8_STRING"); | |
2775 | DEFSYM (QDELETE, "DELETE"); | |
2776 | DEFSYM (QMULTIPLE, "MULTIPLE"); | |
2777 | DEFSYM (QINCR, "INCR"); | |
2778 | DEFSYM (QEMACS_TMP, "_EMACS_TMP_"); | |
2779 | DEFSYM (QTARGETS, "TARGETS"); | |
2780 | DEFSYM (QATOM, "ATOM"); | |
2781 | DEFSYM (QATOM_PAIR, "ATOM_PAIR"); | |
a9f737ee CY |
2782 | DEFSYM (QCLIPBOARD_MANAGER, "CLIPBOARD_MANAGER"); |
2783 | DEFSYM (QSAVE_TARGETS, "SAVE_TARGETS"); | |
f3d4e0a4 CY |
2784 | DEFSYM (QNULL, "NULL"); |
2785 | DEFSYM (Qcompound_text_with_extensions, "compound-text-with-extensions"); | |
2786 | DEFSYM (Qforeign_selection, "foreign-selection"); | |
cd18e7e3 JB |
2787 | DEFSYM (Qx_lost_selection_functions, "x-lost-selection-functions"); |
2788 | DEFSYM (Qx_sent_selection_functions, "x-sent-selection-functions"); | |
ede4db72 | 2789 | } |