Commit | Line | Data |
---|---|---|
2408b3a1 | 1 | /* X Selection processing for Emacs. |
0b5538bd | 2 | Copyright (C) 1993, 1994, 1995, 1996, 1997, 2000, 2001, 2002, 2003, |
114f9c96 | 3 | 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
ede4db72 RS |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
9ec0b715 | 7 | GNU Emacs is free software: you can redistribute it and/or modify |
ede4db72 | 8 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
9 | the Free Software Foundation, either version 3 of the License, or |
10 | (at your option) any later version. | |
ede4db72 RS |
11 | |
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
ede4db72 | 19 | |
c6c5df7f | 20 | |
ede4db72 RS |
21 | /* Rewritten by jwz */ |
22 | ||
18160b98 | 23 | #include <config.h> |
5b698285 | 24 | #include <stdio.h> /* termhooks.h needs this */ |
d7306fe6 | 25 | #include <setjmp.h> |
678b3958 KS |
26 | |
27 | #ifdef HAVE_SYS_TYPES_H | |
28 | #include <sys/types.h> | |
29 | #endif | |
30 | #ifdef HAVE_UNISTD_H | |
31 | #include <unistd.h> | |
32 | #endif | |
33 | ||
ede4db72 RS |
34 | #include "lisp.h" |
35 | #include "xterm.h" /* for all of the X includes */ | |
7da64e5c RS |
36 | #include "dispextern.h" /* frame.h seems to want this */ |
37 | #include "frame.h" /* Need this to get the X window of selected_frame */ | |
9ac0d9e0 | 38 | #include "blockinput.h" |
5faa9b45 | 39 | #include "buffer.h" |
dfcf069d | 40 | #include "process.h" |
1fb3821b | 41 | #include "termhooks.h" |
dd0fe424 | 42 | #include "keyboard.h" |
1fb3821b JD |
43 | |
44 | #include <X11/Xproto.h> | |
7da64e5c | 45 | |
d9c0d4a3 GM |
46 | struct prop_location; |
47 | ||
f57e2426 J |
48 | static Lisp_Object x_atom_to_symbol (Display *dpy, Atom atom); |
49 | static Atom symbol_to_x_atom (struct x_display_info *, Display *, | |
50 | Lisp_Object); | |
51 | static void x_own_selection (Lisp_Object, Lisp_Object); | |
52 | static Lisp_Object x_get_local_selection (Lisp_Object, Lisp_Object, int); | |
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); | |
56 | static Lisp_Object some_frame_on_display (struct x_display_info *); | |
57 | static Lisp_Object x_catch_errors_unwind (Lisp_Object); | |
58 | static void x_reply_selection_request (struct input_event *, int, | |
59 | unsigned char *, int, Atom); | |
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 *); | |
66 | static Lisp_Object x_get_foreign_selection (Lisp_Object, | |
67 | Lisp_Object, | |
68 | Lisp_Object); | |
69 | static void x_get_window_property (Display *, Window, Atom, | |
70 | unsigned char **, int *, | |
71 | Atom *, int *, unsigned long *, int); | |
72 | static void receive_incremental_selection (Display *, Window, Atom, | |
73 | Lisp_Object, unsigned, | |
74 | unsigned char **, int *, | |
75 | Atom *, int *, unsigned long *); | |
76 | static Lisp_Object x_get_window_property_as_lisp_data (Display *, | |
77 | Window, Atom, | |
78 | Lisp_Object, Atom); | |
79 | static Lisp_Object selection_data_to_lisp_data (Display *, unsigned char *, | |
80 | int, Atom, int); | |
81 | static void lisp_data_to_selection_data (Display *, Lisp_Object, | |
82 | unsigned char **, Atom *, | |
83 | unsigned *, int *, int *); | |
84 | static Lisp_Object clean_local_selection_data (Lisp_Object); | |
85 | static void initialize_cut_buffers (Display *, Window); | |
d9c0d4a3 GM |
86 | |
87 | ||
88 | /* Printing traces to stderr. */ | |
89 | ||
90 | #ifdef TRACE_SELECTION | |
91 | #define TRACE0(fmt) \ | |
92 | fprintf (stderr, "%d: " fmt "\n", getpid ()) | |
93 | #define TRACE1(fmt, a0) \ | |
94 | fprintf (stderr, "%d: " fmt "\n", getpid (), a0) | |
95 | #define TRACE2(fmt, a0, a1) \ | |
96 | fprintf (stderr, "%d: " fmt "\n", getpid (), a0, a1) | |
9c3ad9e1 JD |
97 | #define TRACE3(fmt, a0, a1, a2) \ |
98 | fprintf (stderr, "%d: " fmt "\n", getpid (), a0, a1, a2) | |
d9c0d4a3 GM |
99 | #else |
100 | #define TRACE0(fmt) (void) 0 | |
101 | #define TRACE1(fmt, a0) (void) 0 | |
102 | #define TRACE2(fmt, a0, a1) (void) 0 | |
9c3ad9e1 | 103 | #define TRACE3(fmt, a0, a1) (void) 0 |
d9c0d4a3 GM |
104 | #endif |
105 | ||
106 | ||
ede4db72 RS |
107 | #define CUT_BUFFER_SUPPORT |
108 | ||
ede4db72 RS |
109 | Lisp_Object QPRIMARY, QSECONDARY, QSTRING, QINTEGER, QCLIPBOARD, QTIMESTAMP, |
110 | QTEXT, QDELETE, QMULTIPLE, QINCR, QEMACS_TMP, QTARGETS, QATOM, QNULL, | |
111 | QATOM_PAIR; | |
112 | ||
e6c7c988 | 113 | Lisp_Object QCOMPOUND_TEXT; /* This is a type of selection. */ |
5109c8dd | 114 | Lisp_Object QUTF8_STRING; /* This is a type of selection. */ |
e6c7c988 | 115 | |
5a79ea57 | 116 | Lisp_Object Qcompound_text_with_extensions; |
fbbe0ace | 117 | |
ede4db72 RS |
118 | #ifdef CUT_BUFFER_SUPPORT |
119 | Lisp_Object QCUT_BUFFER0, QCUT_BUFFER1, QCUT_BUFFER2, QCUT_BUFFER3, | |
120 | QCUT_BUFFER4, QCUT_BUFFER5, QCUT_BUFFER6, QCUT_BUFFER7; | |
121 | #endif | |
122 | ||
c917a8de SM |
123 | static Lisp_Object Vx_lost_selection_functions; |
124 | static Lisp_Object Vx_sent_selection_functions; | |
e57ad4d8 KH |
125 | static Lisp_Object Qforeign_selection; |
126 | ||
ede4db72 RS |
127 | /* If this is a smaller number than the max-request-size of the display, |
128 | emacs will use INCR selection transfer when the selection is larger | |
129 | than this. The max-request-size is usually around 64k, so if you want | |
1b65481e | 130 | emacs to use incremental selection transfers when the selection is |
ede4db72 | 131 | smaller than that, set this. I added this mostly for debugging the |
8f4f023f | 132 | incremental transfer stuff, but it might improve server performance. */ |
ede4db72 RS |
133 | #define MAX_SELECTION_QUANTUM 0xFFFFFF |
134 | ||
c3498e64 | 135 | #define SELECTION_QUANTUM(dpy) ((XMaxRequestSize(dpy) << 2) - 100) |
ede4db72 | 136 | |
7da64e5c | 137 | /* The timestamp of the last input event Emacs received from the X server. */ |
29674445 KH |
138 | /* Defined in keyboard.c. */ |
139 | extern unsigned long last_event_timestamp; | |
ede4db72 RS |
140 | |
141 | /* This is an association list whose elements are of the form | |
118bd841 RS |
142 | ( SELECTION-NAME SELECTION-VALUE SELECTION-TIMESTAMP FRAME) |
143 | SELECTION-NAME is a lisp symbol, whose name is the name of an X Atom. | |
144 | SELECTION-VALUE is the value that emacs owns for that selection. | |
ede4db72 | 145 | It may be any kind of Lisp object. |
118bd841 | 146 | SELECTION-TIMESTAMP is the time at which emacs began owning this selection, |
ede4db72 | 147 | as a cons of two 16-bit numbers (making a 32 bit time.) |
118bd841 RS |
148 | FRAME is the frame for which we made the selection. |
149 | If there is an entry in this alist, then it can be assumed that Emacs owns | |
ede4db72 RS |
150 | that selection. |
151 | The only (eq) parts of this list that are visible from Lisp are the | |
8f4f023f RS |
152 | selection-values. */ |
153 | static Lisp_Object Vselection_alist; | |
ede4db72 RS |
154 | |
155 | /* This is an alist whose CARs are selection-types (whose names are the same | |
156 | as the names of X Atoms) and whose CDRs are the names of Lisp functions to | |
1b65481e | 157 | call to convert the given Emacs selection value to a string representing |
ede4db72 | 158 | the given selection type. This is for Lisp-level extension of the emacs |
8f4f023f RS |
159 | selection handling. */ |
160 | static Lisp_Object Vselection_converter_alist; | |
ede4db72 RS |
161 | |
162 | /* If the selection owner takes too long to reply to a selection request, | |
8f4f023f | 163 | we give up on it. This is in milliseconds (0 = no timeout.) */ |
31ade731 | 164 | static EMACS_INT x_selection_timeout; |
ede4db72 | 165 | |
dd0fe424 KS |
166 | |
167 | \f | |
678b3958 KS |
168 | /* Define a queue to save up SELECTION_REQUEST_EVENT events for later |
169 | handling. */ | |
dd0fe424 KS |
170 | |
171 | struct selection_event_queue | |
172 | { | |
173 | struct input_event event; | |
174 | struct selection_event_queue *next; | |
175 | }; | |
176 | ||
177 | static struct selection_event_queue *selection_queue; | |
178 | ||
678b3958 | 179 | /* Nonzero means queue up SELECTION_REQUEST_EVENT events. */ |
dd0fe424 KS |
180 | |
181 | static int x_queue_selection_requests; | |
182 | ||
678b3958 | 183 | /* Queue up an SELECTION_REQUEST_EVENT *EVENT, to be processed later. */ |
dd0fe424 KS |
184 | |
185 | static void | |
971de7fb | 186 | x_queue_event (struct input_event *event) |
dd0fe424 KS |
187 | { |
188 | struct selection_event_queue *queue_tmp; | |
189 | ||
678b3958 KS |
190 | /* Don't queue repeated requests. |
191 | This only happens for large requests which uses the incremental protocol. */ | |
dd0fe424 KS |
192 | for (queue_tmp = selection_queue; queue_tmp; queue_tmp = queue_tmp->next) |
193 | { | |
72af86bd | 194 | if (!memcmp (&queue_tmp->event, event, sizeof (*event))) |
dd0fe424 | 195 | { |
678b3958 KS |
196 | TRACE1 ("DECLINE DUP SELECTION EVENT %08lx", (unsigned long)queue_tmp); |
197 | x_decline_selection_request (event); | |
dd0fe424 KS |
198 | return; |
199 | } | |
200 | } | |
201 | ||
202 | queue_tmp | |
203 | = (struct selection_event_queue *) xmalloc (sizeof (struct selection_event_queue)); | |
204 | ||
205 | if (queue_tmp != NULL) | |
206 | { | |
678b3958 | 207 | TRACE1 ("QUEUE SELECTION EVENT %08lx", (unsigned long)queue_tmp); |
dd0fe424 KS |
208 | queue_tmp->event = *event; |
209 | queue_tmp->next = selection_queue; | |
210 | selection_queue = queue_tmp; | |
211 | } | |
212 | } | |
213 | ||
678b3958 | 214 | /* Start queuing SELECTION_REQUEST_EVENT events. */ |
dd0fe424 KS |
215 | |
216 | static void | |
971de7fb | 217 | x_start_queuing_selection_requests (void) |
dd0fe424 KS |
218 | { |
219 | if (x_queue_selection_requests) | |
220 | abort (); | |
221 | ||
222 | x_queue_selection_requests++; | |
223 | TRACE1 ("x_start_queuing_selection_requests %d", x_queue_selection_requests); | |
224 | } | |
225 | ||
678b3958 | 226 | /* Stop queuing SELECTION_REQUEST_EVENT events. */ |
dd0fe424 KS |
227 | |
228 | static void | |
971de7fb | 229 | x_stop_queuing_selection_requests (void) |
dd0fe424 KS |
230 | { |
231 | TRACE1 ("x_stop_queuing_selection_requests %d", x_queue_selection_requests); | |
232 | --x_queue_selection_requests; | |
233 | ||
234 | /* Take all the queued events and put them back | |
235 | so that they get processed afresh. */ | |
236 | ||
237 | while (selection_queue != NULL) | |
238 | { | |
239 | struct selection_event_queue *queue_tmp = selection_queue; | |
678b3958 | 240 | TRACE1 ("RESTORE SELECTION EVENT %08lx", (unsigned long)queue_tmp); |
dd0fe424 KS |
241 | kbd_buffer_unget_event (&queue_tmp->event); |
242 | selection_queue = queue_tmp->next; | |
243 | xfree ((char *)queue_tmp); | |
244 | } | |
245 | } | |
246 | \f | |
247 | ||
1b65481e | 248 | /* This converts a Lisp symbol to a server Atom, avoiding a server |
ede4db72 RS |
249 | roundtrip whenever possible. */ |
250 | ||
251 | static Atom | |
971de7fb | 252 | symbol_to_x_atom (struct x_display_info *dpyinfo, Display *display, Lisp_Object sym) |
ede4db72 RS |
253 | { |
254 | Atom val; | |
255 | if (NILP (sym)) return 0; | |
256 | if (EQ (sym, QPRIMARY)) return XA_PRIMARY; | |
257 | if (EQ (sym, QSECONDARY)) return XA_SECONDARY; | |
258 | if (EQ (sym, QSTRING)) return XA_STRING; | |
259 | if (EQ (sym, QINTEGER)) return XA_INTEGER; | |
260 | if (EQ (sym, QATOM)) return XA_ATOM; | |
5c3a351a RS |
261 | if (EQ (sym, QCLIPBOARD)) return dpyinfo->Xatom_CLIPBOARD; |
262 | if (EQ (sym, QTIMESTAMP)) return dpyinfo->Xatom_TIMESTAMP; | |
263 | if (EQ (sym, QTEXT)) return dpyinfo->Xatom_TEXT; | |
e6c7c988 | 264 | if (EQ (sym, QCOMPOUND_TEXT)) return dpyinfo->Xatom_COMPOUND_TEXT; |
5109c8dd | 265 | if (EQ (sym, QUTF8_STRING)) return dpyinfo->Xatom_UTF8_STRING; |
5c3a351a RS |
266 | if (EQ (sym, QDELETE)) return dpyinfo->Xatom_DELETE; |
267 | if (EQ (sym, QMULTIPLE)) return dpyinfo->Xatom_MULTIPLE; | |
268 | if (EQ (sym, QINCR)) return dpyinfo->Xatom_INCR; | |
269 | if (EQ (sym, QEMACS_TMP)) return dpyinfo->Xatom_EMACS_TMP; | |
270 | if (EQ (sym, QTARGETS)) return dpyinfo->Xatom_TARGETS; | |
271 | if (EQ (sym, QNULL)) return dpyinfo->Xatom_NULL; | |
ede4db72 RS |
272 | #ifdef CUT_BUFFER_SUPPORT |
273 | if (EQ (sym, QCUT_BUFFER0)) return XA_CUT_BUFFER0; | |
274 | if (EQ (sym, QCUT_BUFFER1)) return XA_CUT_BUFFER1; | |
275 | if (EQ (sym, QCUT_BUFFER2)) return XA_CUT_BUFFER2; | |
276 | if (EQ (sym, QCUT_BUFFER3)) return XA_CUT_BUFFER3; | |
277 | if (EQ (sym, QCUT_BUFFER4)) return XA_CUT_BUFFER4; | |
278 | if (EQ (sym, QCUT_BUFFER5)) return XA_CUT_BUFFER5; | |
279 | if (EQ (sym, QCUT_BUFFER6)) return XA_CUT_BUFFER6; | |
280 | if (EQ (sym, QCUT_BUFFER7)) return XA_CUT_BUFFER7; | |
281 | #endif | |
282 | if (!SYMBOLP (sym)) abort (); | |
283 | ||
d5db4077 | 284 | TRACE1 (" XInternAtom %s", (char *) SDATA (SYMBOL_NAME (sym))); |
ede4db72 | 285 | BLOCK_INPUT; |
d5db4077 | 286 | val = XInternAtom (display, (char *) SDATA (SYMBOL_NAME (sym)), False); |
ede4db72 RS |
287 | UNBLOCK_INPUT; |
288 | return val; | |
289 | } | |
290 | ||
291 | ||
292 | /* This converts a server Atom to a Lisp symbol, avoiding server roundtrips | |
293 | and calls to intern whenever possible. */ | |
294 | ||
295 | static Lisp_Object | |
971de7fb | 296 | x_atom_to_symbol (Display *dpy, Atom atom) |
ede4db72 | 297 | { |
d9c0d4a3 | 298 | struct x_display_info *dpyinfo; |
ede4db72 RS |
299 | char *str; |
300 | Lisp_Object val; | |
1b65481e | 301 | |
d9c0d4a3 GM |
302 | if (! atom) |
303 | return Qnil; | |
1b65481e | 304 | |
7da64e5c RS |
305 | switch (atom) |
306 | { | |
307 | case XA_PRIMARY: | |
308 | return QPRIMARY; | |
309 | case XA_SECONDARY: | |
310 | return QSECONDARY; | |
311 | case XA_STRING: | |
312 | return QSTRING; | |
313 | case XA_INTEGER: | |
314 | return QINTEGER; | |
315 | case XA_ATOM: | |
316 | return QATOM; | |
ede4db72 | 317 | #ifdef CUT_BUFFER_SUPPORT |
7da64e5c RS |
318 | case XA_CUT_BUFFER0: |
319 | return QCUT_BUFFER0; | |
320 | case XA_CUT_BUFFER1: | |
321 | return QCUT_BUFFER1; | |
322 | case XA_CUT_BUFFER2: | |
323 | return QCUT_BUFFER2; | |
324 | case XA_CUT_BUFFER3: | |
325 | return QCUT_BUFFER3; | |
326 | case XA_CUT_BUFFER4: | |
327 | return QCUT_BUFFER4; | |
328 | case XA_CUT_BUFFER5: | |
329 | return QCUT_BUFFER5; | |
330 | case XA_CUT_BUFFER6: | |
331 | return QCUT_BUFFER6; | |
332 | case XA_CUT_BUFFER7: | |
333 | return QCUT_BUFFER7; | |
ede4db72 | 334 | #endif |
7da64e5c RS |
335 | } |
336 | ||
d9c0d4a3 | 337 | dpyinfo = x_display_info_for_display (dpy); |
5c3a351a | 338 | if (atom == dpyinfo->Xatom_CLIPBOARD) |
7da64e5c | 339 | return QCLIPBOARD; |
5c3a351a | 340 | if (atom == dpyinfo->Xatom_TIMESTAMP) |
7da64e5c | 341 | return QTIMESTAMP; |
5c3a351a | 342 | if (atom == dpyinfo->Xatom_TEXT) |
7da64e5c | 343 | return QTEXT; |
e6c7c988 KH |
344 | if (atom == dpyinfo->Xatom_COMPOUND_TEXT) |
345 | return QCOMPOUND_TEXT; | |
5109c8dd KH |
346 | if (atom == dpyinfo->Xatom_UTF8_STRING) |
347 | return QUTF8_STRING; | |
5c3a351a | 348 | if (atom == dpyinfo->Xatom_DELETE) |
7da64e5c | 349 | return QDELETE; |
5c3a351a | 350 | if (atom == dpyinfo->Xatom_MULTIPLE) |
7da64e5c | 351 | return QMULTIPLE; |
5c3a351a | 352 | if (atom == dpyinfo->Xatom_INCR) |
7da64e5c | 353 | return QINCR; |
5c3a351a | 354 | if (atom == dpyinfo->Xatom_EMACS_TMP) |
7da64e5c | 355 | return QEMACS_TMP; |
5c3a351a | 356 | if (atom == dpyinfo->Xatom_TARGETS) |
7da64e5c | 357 | return QTARGETS; |
5c3a351a | 358 | if (atom == dpyinfo->Xatom_NULL) |
7da64e5c | 359 | return QNULL; |
ede4db72 RS |
360 | |
361 | BLOCK_INPUT; | |
d9c0d4a3 | 362 | str = XGetAtomName (dpy, atom); |
ede4db72 | 363 | UNBLOCK_INPUT; |
d9c0d4a3 | 364 | TRACE1 ("XGetAtomName --> %s", str); |
ede4db72 RS |
365 | if (! str) return Qnil; |
366 | val = intern (str); | |
367 | BLOCK_INPUT; | |
0158abbc | 368 | /* This was allocated by Xlib, so use XFree. */ |
ede4db72 RS |
369 | XFree (str); |
370 | UNBLOCK_INPUT; | |
371 | return val; | |
372 | } | |
8a89415e | 373 | \f |
ede4db72 | 374 | /* Do protocol to assert ourself as a selection owner. |
1b65481e | 375 | Update the Vselection_alist so that we can reply to later requests for |
ede4db72 RS |
376 | our selection. */ |
377 | ||
378 | static void | |
971de7fb | 379 | x_own_selection (Lisp_Object selection_name, Lisp_Object selection_value) |
ede4db72 | 380 | { |
378c33ca | 381 | struct frame *sf = SELECTED_FRAME (); |
428a555e KL |
382 | Window selecting_window; |
383 | Display *display; | |
7da64e5c | 384 | Time time = last_event_timestamp; |
ede4db72 | 385 | Atom selection_atom; |
428a555e | 386 | struct x_display_info *dpyinfo; |
ede4db72 | 387 | |
428a555e KL |
388 | if (! FRAME_X_P (sf)) |
389 | return; | |
390 | ||
391 | selecting_window = FRAME_X_WINDOW (sf); | |
392 | display = FRAME_X_DISPLAY (sf); | |
393 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
394 | ||
b7826503 | 395 | CHECK_SYMBOL (selection_name); |
5c3a351a | 396 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection_name); |
ede4db72 RS |
397 | |
398 | BLOCK_INPUT; | |
9ba8e10d | 399 | x_catch_errors (display); |
ede4db72 | 400 | XSetSelectionOwner (display, selection_atom, selecting_window, time); |
a7b24d46 | 401 | x_check_errors (display, "Can't set selection: %s"); |
4545fa20 | 402 | x_uncatch_errors (); |
ede4db72 RS |
403 | UNBLOCK_INPUT; |
404 | ||
405 | /* Now update the local cache */ | |
406 | { | |
407 | Lisp_Object selection_time; | |
408 | Lisp_Object selection_data; | |
409 | Lisp_Object prev_value; | |
410 | ||
411 | selection_time = long_to_cons ((unsigned long) time); | |
412 | selection_data = Fcons (selection_name, | |
413 | Fcons (selection_value, | |
118bd841 | 414 | Fcons (selection_time, |
378c33ca | 415 | Fcons (selected_frame, Qnil)))); |
ede4db72 RS |
416 | prev_value = assq_no_quit (selection_name, Vselection_alist); |
417 | ||
418 | Vselection_alist = Fcons (selection_data, Vselection_alist); | |
419 | ||
420 | /* If we already owned the selection, remove the old selection data. | |
421 | Perhaps we should destructively modify it instead. | |
422 | Don't use Fdelq as that may QUIT. */ | |
423 | if (!NILP (prev_value)) | |
424 | { | |
425 | Lisp_Object rest; /* we know it's not the CAR, so it's easy. */ | |
99784d63 | 426 | for (rest = Vselection_alist; CONSP (rest); rest = XCDR (rest)) |
8e713be6 | 427 | if (EQ (prev_value, Fcar (XCDR (rest)))) |
ede4db72 | 428 | { |
f3fbd155 | 429 | XSETCDR (rest, Fcdr (XCDR (rest))); |
ede4db72 RS |
430 | break; |
431 | } | |
432 | } | |
433 | } | |
434 | } | |
435 | \f | |
436 | /* Given a selection-name and desired type, look up our local copy of | |
437 | the selection value and convert it to the type. | |
438 | The value is nil or a string. | |
5109c8dd KH |
439 | This function is used both for remote requests (LOCAL_REQUEST is zero) |
440 | and for local x-get-selection-internal (LOCAL_REQUEST is nonzero). | |
ede4db72 RS |
441 | |
442 | This calls random Lisp code, and may signal or gc. */ | |
443 | ||
444 | static Lisp_Object | |
971de7fb | 445 | x_get_local_selection (Lisp_Object selection_symbol, Lisp_Object target_type, int local_request) |
ede4db72 RS |
446 | { |
447 | Lisp_Object local_value; | |
448 | Lisp_Object handler_fn, value, type, check; | |
449 | int count; | |
450 | ||
451 | local_value = assq_no_quit (selection_symbol, Vselection_alist); | |
452 | ||
453 | if (NILP (local_value)) return Qnil; | |
454 | ||
455 | /* TIMESTAMP and MULTIPLE are special cases 'cause that's easiest. */ | |
456 | if (EQ (target_type, QTIMESTAMP)) | |
457 | { | |
458 | handler_fn = Qnil; | |
8e713be6 | 459 | value = XCAR (XCDR (XCDR (local_value))); |
ede4db72 RS |
460 | } |
461 | #if 0 | |
462 | else if (EQ (target_type, QDELETE)) | |
463 | { | |
464 | handler_fn = Qnil; | |
465 | Fx_disown_selection_internal | |
466 | (selection_symbol, | |
8e713be6 | 467 | XCAR (XCDR (XCDR (local_value)))); |
ede4db72 RS |
468 | value = QNULL; |
469 | } | |
470 | #endif | |
471 | ||
472 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
473 | else if (CONSP (target_type) | |
8e713be6 | 474 | && XCAR (target_type) == QMULTIPLE) |
ede4db72 | 475 | { |
9d2d1dd8 KH |
476 | Lisp_Object pairs; |
477 | int size; | |
ede4db72 | 478 | int i; |
8e713be6 | 479 | pairs = XCDR (target_type); |
9d2d1dd8 | 480 | size = XVECTOR (pairs)->size; |
ede4db72 RS |
481 | /* If the target is MULTIPLE, then target_type looks like |
482 | (MULTIPLE . [[SELECTION1 TARGET1] [SELECTION2 TARGET2] ... ]) | |
483 | We modify the second element of each pair in the vector and | |
484 | return it as [[SELECTION1 <value1>] [SELECTION2 <value2>] ... ] | |
485 | */ | |
486 | for (i = 0; i < size; i++) | |
487 | { | |
9d2d1dd8 KH |
488 | Lisp_Object pair; |
489 | pair = XVECTOR (pairs)->contents [i]; | |
ede4db72 RS |
490 | XVECTOR (pair)->contents [1] |
491 | = x_get_local_selection (XVECTOR (pair)->contents [0], | |
5109c8dd KH |
492 | XVECTOR (pair)->contents [1], |
493 | local_request); | |
ede4db72 RS |
494 | } |
495 | return pairs; | |
496 | } | |
497 | #endif | |
498 | else | |
499 | { | |
500 | /* Don't allow a quit within the converter. | |
501 | When the user types C-g, he would be surprised | |
502 | if by luck it came during a converter. */ | |
aed13378 | 503 | count = SPECPDL_INDEX (); |
ede4db72 RS |
504 | specbind (Qinhibit_quit, Qt); |
505 | ||
b7826503 | 506 | CHECK_SYMBOL (target_type); |
ede4db72 | 507 | handler_fn = Fcdr (Fassq (target_type, Vselection_converter_alist)); |
4f06187f RS |
508 | /* gcpro is not needed here since nothing but HANDLER_FN |
509 | is live, and that ought to be a symbol. */ | |
510 | ||
1eb4d468 RS |
511 | if (!NILP (handler_fn)) |
512 | value = call3 (handler_fn, | |
5109c8dd | 513 | selection_symbol, (local_request ? Qnil : target_type), |
8e713be6 | 514 | XCAR (XCDR (local_value))); |
1eb4d468 RS |
515 | else |
516 | value = Qnil; | |
ede4db72 RS |
517 | unbind_to (count, Qnil); |
518 | } | |
519 | ||
520 | /* Make sure this value is of a type that we could transmit | |
521 | to another X client. */ | |
a87ed99c | 522 | |
ede4db72 RS |
523 | check = value; |
524 | if (CONSP (value) | |
8e713be6 KR |
525 | && SYMBOLP (XCAR (value))) |
526 | type = XCAR (value), | |
527 | check = XCDR (value); | |
1b65481e | 528 | |
ede4db72 RS |
529 | if (STRINGP (check) |
530 | || VECTORP (check) | |
531 | || SYMBOLP (check) | |
7da64e5c | 532 | || INTEGERP (check) |
ede4db72 RS |
533 | || NILP (value)) |
534 | return value; | |
a87ed99c | 535 | /* Check for a value that cons_to_long could handle. */ |
ede4db72 | 536 | else if (CONSP (check) |
8e713be6 KR |
537 | && INTEGERP (XCAR (check)) |
538 | && (INTEGERP (XCDR (check)) | |
ede4db72 | 539 | || |
8e713be6 KR |
540 | (CONSP (XCDR (check)) |
541 | && INTEGERP (XCAR (XCDR (check))) | |
542 | && NILP (XCDR (XCDR (check)))))) | |
ede4db72 | 543 | return value; |
4d30ce50 KS |
544 | |
545 | signal_error ("Invalid data returned by selection-conversion function", | |
546 | list2 (handler_fn, value)); | |
ede4db72 RS |
547 | } |
548 | \f | |
549 | /* Subroutines of x_reply_selection_request. */ | |
550 | ||
5d0ba25b | 551 | /* Send a SelectionNotify event to the requestor with property=None, |
ede4db72 RS |
552 | meaning we were unable to do what they wanted. */ |
553 | ||
554 | static void | |
971de7fb | 555 | x_decline_selection_request (struct input_event *event) |
ede4db72 RS |
556 | { |
557 | XSelectionEvent reply; | |
1b65481e | 558 | |
ede4db72 RS |
559 | reply.type = SelectionNotify; |
560 | reply.display = SELECTION_EVENT_DISPLAY (event); | |
5d0ba25b | 561 | reply.requestor = SELECTION_EVENT_REQUESTOR (event); |
ede4db72 RS |
562 | reply.selection = SELECTION_EVENT_SELECTION (event); |
563 | reply.time = SELECTION_EVENT_TIME (event); | |
564 | reply.target = SELECTION_EVENT_TARGET (event); | |
565 | reply.property = None; | |
566 | ||
d9c0d4a3 GM |
567 | /* The reason for the error may be that the receiver has |
568 | died in the meantime. Handle that case. */ | |
ede4db72 | 569 | BLOCK_INPUT; |
9ba8e10d | 570 | x_catch_errors (reply.display); |
d9c0d4a3 | 571 | XSendEvent (reply.display, reply.requestor, False, 0L, (XEvent *) &reply); |
5c3a351a | 572 | XFlush (reply.display); |
4545fa20 | 573 | x_uncatch_errors (); |
ede4db72 RS |
574 | UNBLOCK_INPUT; |
575 | } | |
576 | ||
577 | /* This is the selection request currently being processed. | |
578 | It is set to zero when the request is fully processed. */ | |
579 | static struct input_event *x_selection_current_request; | |
580 | ||
ca29f2b8 GM |
581 | /* Display info in x_selection_request. */ |
582 | ||
583 | static struct x_display_info *selection_request_dpyinfo; | |
584 | ||
ede4db72 | 585 | /* Used as an unwind-protect clause so that, if a selection-converter signals |
2a1a4c9d | 586 | an error, we tell the requester that we were unable to do what they wanted |
ede4db72 RS |
587 | before we throw to top-level or go into the debugger or whatever. */ |
588 | ||
589 | static Lisp_Object | |
971de7fb | 590 | x_selection_request_lisp_error (Lisp_Object ignore) |
ede4db72 | 591 | { |
ca29f2b8 GM |
592 | if (x_selection_current_request != 0 |
593 | && selection_request_dpyinfo->display) | |
ede4db72 RS |
594 | x_decline_selection_request (x_selection_current_request); |
595 | return Qnil; | |
596 | } | |
c525d842 CY |
597 | |
598 | static Lisp_Object | |
971de7fb | 599 | x_catch_errors_unwind (Lisp_Object dummy) |
c525d842 CY |
600 | { |
601 | BLOCK_INPUT; | |
602 | x_uncatch_errors (); | |
603 | UNBLOCK_INPUT; | |
6f10509c | 604 | return Qnil; |
c525d842 | 605 | } |
ede4db72 | 606 | \f |
d1f21a66 RS |
607 | |
608 | /* This stuff is so that INCR selections are reentrant (that is, so we can | |
609 | be servicing multiple INCR selection requests simultaneously.) I haven't | |
610 | actually tested that yet. */ | |
611 | ||
612 | /* Keep a list of the property changes that are awaited. */ | |
613 | ||
614 | struct prop_location | |
615 | { | |
616 | int identifier; | |
617 | Display *display; | |
618 | Window window; | |
619 | Atom property; | |
620 | int desired_state; | |
621 | int arrived; | |
622 | struct prop_location *next; | |
623 | }; | |
624 | ||
971de7fb DN |
625 | static struct prop_location *expect_property_change (Display *display, Window window, Atom property, int state); |
626 | static void wait_for_property_change (struct prop_location *location); | |
627 | static void unexpect_property_change (struct prop_location *location); | |
628 | static int waiting_for_other_props_on_window (Display *display, Window window); | |
d1f21a66 RS |
629 | |
630 | static int prop_location_identifier; | |
631 | ||
632 | static Lisp_Object property_change_reply; | |
633 | ||
634 | static struct prop_location *property_change_reply_object; | |
635 | ||
636 | static struct prop_location *property_change_wait_list; | |
55b2d45d RS |
637 | |
638 | static Lisp_Object | |
971de7fb | 639 | queue_selection_requests_unwind (Lisp_Object tem) |
55b2d45d | 640 | { |
dd0fe424 | 641 | x_stop_queuing_selection_requests (); |
ab552306 | 642 | return Qnil; |
55b2d45d RS |
643 | } |
644 | ||
645 | /* Return some frame whose display info is DPYINFO. | |
646 | Return nil if there is none. */ | |
647 | ||
648 | static Lisp_Object | |
971de7fb | 649 | some_frame_on_display (struct x_display_info *dpyinfo) |
55b2d45d RS |
650 | { |
651 | Lisp_Object list, frame; | |
652 | ||
653 | FOR_EACH_FRAME (list, frame) | |
654 | { | |
428a555e KL |
655 | if (FRAME_X_P (XFRAME (frame)) |
656 | && FRAME_X_DISPLAY_INFO (XFRAME (frame)) == dpyinfo) | |
55b2d45d RS |
657 | return frame; |
658 | } | |
659 | ||
660 | return Qnil; | |
661 | } | |
d1f21a66 | 662 | \f |
ede4db72 RS |
663 | /* Send the reply to a selection request event EVENT. |
664 | TYPE is the type of selection data requested. | |
665 | DATA and SIZE describe the data to send, already converted. | |
666 | FORMAT is the unit-size (in bits) of the data to be transmitted. */ | |
667 | ||
46d47e41 | 668 | #ifdef TRACE_SELECTION |
ca7af97a | 669 | static int x_reply_selection_request_cnt; |
46d47e41 GM |
670 | #endif /* TRACE_SELECTION */ |
671 | ||
ede4db72 | 672 | static void |
971de7fb | 673 | x_reply_selection_request (struct input_event *event, int format, unsigned char *data, int size, Atom type) |
ede4db72 RS |
674 | { |
675 | XSelectionEvent reply; | |
676 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
5d0ba25b | 677 | Window window = SELECTION_EVENT_REQUESTOR (event); |
ede4db72 RS |
678 | int bytes_remaining; |
679 | int format_bytes = format/8; | |
680 | int max_bytes = SELECTION_QUANTUM (display); | |
5c3a351a | 681 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
9ba8e10d | 682 | int count = SPECPDL_INDEX (); |
ede4db72 RS |
683 | |
684 | if (max_bytes > MAX_SELECTION_QUANTUM) | |
685 | max_bytes = MAX_SELECTION_QUANTUM; | |
686 | ||
687 | reply.type = SelectionNotify; | |
688 | reply.display = display; | |
5d0ba25b | 689 | reply.requestor = window; |
ede4db72 RS |
690 | reply.selection = SELECTION_EVENT_SELECTION (event); |
691 | reply.time = SELECTION_EVENT_TIME (event); | |
692 | reply.target = SELECTION_EVENT_TARGET (event); | |
693 | reply.property = SELECTION_EVENT_PROPERTY (event); | |
694 | if (reply.property == None) | |
695 | reply.property = reply.target; | |
696 | ||
afe1529d | 697 | BLOCK_INPUT; |
c525d842 CY |
698 | /* The protected block contains wait_for_property_change, which can |
699 | run random lisp code (process handlers) or signal. Therefore, we | |
700 | put the x_uncatch_errors call in an unwind. */ | |
701 | record_unwind_protect (x_catch_errors_unwind, Qnil); | |
9ba8e10d | 702 | x_catch_errors (display); |
ede4db72 | 703 | |
9c3ad9e1 JD |
704 | #ifdef TRACE_SELECTION |
705 | { | |
9c3ad9e1 JD |
706 | char *sel = XGetAtomName (display, reply.selection); |
707 | char *tgt = XGetAtomName (display, reply.target); | |
ca7af97a | 708 | TRACE3 ("%s, target %s (%d)", sel, tgt, ++x_reply_selection_request_cnt); |
9c3ad9e1 JD |
709 | if (sel) XFree (sel); |
710 | if (tgt) XFree (tgt); | |
711 | } | |
712 | #endif /* TRACE_SELECTION */ | |
713 | ||
ede4db72 RS |
714 | /* Store the data on the requested property. |
715 | If the selection is large, only store the first N bytes of it. | |
716 | */ | |
717 | bytes_remaining = size * format_bytes; | |
718 | if (bytes_remaining <= max_bytes) | |
719 | { | |
720 | /* Send all the data at once, with minimal handshaking. */ | |
d9c0d4a3 | 721 | TRACE1 ("Sending all %d bytes", bytes_remaining); |
ede4db72 RS |
722 | XChangeProperty (display, window, reply.property, type, format, |
723 | PropModeReplace, data, size); | |
724 | /* At this point, the selection was successfully stored; ack it. */ | |
2f65feb6 | 725 | XSendEvent (display, window, False, 0L, (XEvent *) &reply); |
ede4db72 RS |
726 | } |
727 | else | |
728 | { | |
729 | /* Send an INCR selection. */ | |
d1f21a66 | 730 | struct prop_location *wait_object; |
afe1529d | 731 | int had_errors; |
55b2d45d | 732 | Lisp_Object frame; |
ede4db72 | 733 | |
55b2d45d RS |
734 | frame = some_frame_on_display (dpyinfo); |
735 | ||
736 | /* If the display no longer has frames, we can't expect | |
737 | to get many more selection requests from it, so don't | |
738 | bother trying to queue them. */ | |
739 | if (!NILP (frame)) | |
740 | { | |
dd0fe424 | 741 | x_start_queuing_selection_requests (); |
55b2d45d RS |
742 | |
743 | record_unwind_protect (queue_selection_requests_unwind, | |
dd0fe424 | 744 | Qnil); |
55b2d45d | 745 | } |
2f65feb6 | 746 | |
19126e11 | 747 | if (x_window_to_frame (dpyinfo, window)) /* #### debug */ |
606140dd | 748 | error ("Attempt to transfer an INCR to ourself!"); |
1b65481e | 749 | |
d9c0d4a3 GM |
750 | TRACE2 ("Start sending %d bytes incrementally (%s)", |
751 | bytes_remaining, XGetAtomName (display, reply.property)); | |
d1f21a66 RS |
752 | wait_object = expect_property_change (display, window, reply.property, |
753 | PropertyDelete); | |
ede4db72 | 754 | |
d9c0d4a3 GM |
755 | TRACE1 ("Set %s to number of bytes to send", |
756 | XGetAtomName (display, reply.property)); | |
e22cf39c JD |
757 | { |
758 | /* XChangeProperty expects an array of long even if long is more than | |
759 | 32 bits. */ | |
760 | long value[1]; | |
761 | ||
762 | value[0] = bytes_remaining; | |
763 | XChangeProperty (display, window, reply.property, dpyinfo->Xatom_INCR, | |
764 | 32, PropModeReplace, | |
765 | (unsigned char *) value, 1); | |
766 | } | |
767 | ||
ede4db72 | 768 | XSelectInput (display, window, PropertyChangeMask); |
1b65481e | 769 | |
ede4db72 | 770 | /* Tell 'em the INCR data is there... */ |
d9c0d4a3 | 771 | TRACE0 ("Send SelectionNotify event"); |
55b2d45d | 772 | XSendEvent (display, window, False, 0L, (XEvent *) &reply); |
5c3a351a | 773 | XFlush (display); |
afe1529d RS |
774 | |
775 | had_errors = x_had_errors_p (display); | |
2f65feb6 | 776 | UNBLOCK_INPUT; |
ede4db72 | 777 | |
2a1a4c9d | 778 | /* First, wait for the requester to ack by deleting the property. |
ede4db72 | 779 | This can run random lisp code (process handlers) or signal. */ |
afe1529d | 780 | if (! had_errors) |
d9c0d4a3 GM |
781 | { |
782 | TRACE1 ("Waiting for ACK (deletion of %s)", | |
783 | XGetAtomName (display, reply.property)); | |
784 | wait_for_property_change (wait_object); | |
785 | } | |
dd0fe424 KS |
786 | else |
787 | unexpect_property_change (wait_object); | |
ede4db72 | 788 | |
d9c0d4a3 | 789 | TRACE0 ("Got ACK"); |
ede4db72 RS |
790 | while (bytes_remaining) |
791 | { | |
e22cf39c JD |
792 | int i = ((bytes_remaining < max_bytes) |
793 | ? bytes_remaining | |
5a9c35e5 | 794 | : max_bytes) / format_bytes; |
2f65feb6 RS |
795 | |
796 | BLOCK_INPUT; | |
797 | ||
d1f21a66 RS |
798 | wait_object |
799 | = expect_property_change (display, window, reply.property, | |
800 | PropertyDelete); | |
d9c0d4a3 | 801 | |
5a9c35e5 | 802 | TRACE1 ("Sending increment of %d elements", i); |
d9c0d4a3 GM |
803 | TRACE1 ("Set %s to increment data", |
804 | XGetAtomName (display, reply.property)); | |
1b65481e | 805 | |
ede4db72 RS |
806 | /* Append the next chunk of data to the property. */ |
807 | XChangeProperty (display, window, reply.property, type, format, | |
5a9c35e5 AS |
808 | PropModeAppend, data, i); |
809 | bytes_remaining -= i * format_bytes; | |
810 | if (format == 32) | |
811 | data += i * sizeof (long); | |
812 | else | |
813 | data += i * format_bytes; | |
5c3a351a | 814 | XFlush (display); |
afe1529d | 815 | had_errors = x_had_errors_p (display); |
2f65feb6 | 816 | UNBLOCK_INPUT; |
ede4db72 | 817 | |
afe1529d RS |
818 | if (had_errors) |
819 | break; | |
820 | ||
2a1a4c9d | 821 | /* Now wait for the requester to ack this chunk by deleting the |
db9cd97a | 822 | property. This can run random lisp code or signal. */ |
d9c0d4a3 GM |
823 | TRACE1 ("Waiting for increment ACK (deletion of %s)", |
824 | XGetAtomName (display, reply.property)); | |
d1f21a66 | 825 | wait_for_property_change (wait_object); |
ede4db72 | 826 | } |
1b65481e | 827 | |
d9c0d4a3 GM |
828 | /* Now write a zero-length chunk to the property to tell the |
829 | requester that we're done. */ | |
2f65feb6 | 830 | BLOCK_INPUT; |
ede4db72 RS |
831 | if (! waiting_for_other_props_on_window (display, window)) |
832 | XSelectInput (display, window, 0L); | |
833 | ||
d9c0d4a3 GM |
834 | TRACE1 ("Set %s to a 0-length chunk to indicate EOF", |
835 | XGetAtomName (display, reply.property)); | |
ede4db72 RS |
836 | XChangeProperty (display, window, reply.property, type, format, |
837 | PropModeReplace, data, 0); | |
d9c0d4a3 | 838 | TRACE0 ("Done sending incrementally"); |
ede4db72 | 839 | } |
afe1529d | 840 | |
ceabd272 | 841 | /* rms, 2003-01-03: I think I have fixed this bug. */ |
47a6ac17 GM |
842 | /* The window we're communicating with may have been deleted |
843 | in the meantime (that's a real situation from a bug report). | |
844 | In this case, there may be events in the event queue still | |
845 | refering to the deleted window, and we'll get a BadWindow error | |
846 | in XTread_socket when processing the events. I don't have | |
847 | an idea how to fix that. gerd, 2001-01-98. */ | |
844fc085 JD |
848 | /* 2004-09-10: XSync and UNBLOCK so that possible protocol errors are |
849 | delivered before uncatch errors. */ | |
850 | XSync (display, False); | |
afe1529d | 851 | UNBLOCK_INPUT; |
0608b1a0 JD |
852 | |
853 | /* GTK queues events in addition to the queue in Xlib. So we | |
854 | UNBLOCK to enter the event loop and get possible errors delivered, | |
855 | and then BLOCK again because x_uncatch_errors requires it. */ | |
856 | BLOCK_INPUT; | |
c525d842 | 857 | /* This calls x_uncatch_errors. */ |
9ba8e10d | 858 | unbind_to (count, Qnil); |
afe1529d | 859 | UNBLOCK_INPUT; |
ede4db72 RS |
860 | } |
861 | \f | |
862 | /* Handle a SelectionRequest event EVENT. | |
863 | This is called from keyboard.c when such an event is found in the queue. */ | |
864 | ||
dd0fe424 | 865 | static void |
971de7fb | 866 | x_handle_selection_request (struct input_event *event) |
ede4db72 RS |
867 | { |
868 | struct gcpro gcpro1, gcpro2, gcpro3; | |
9d2d1dd8 | 869 | Lisp_Object local_selection_data; |
ede4db72 | 870 | Lisp_Object selection_symbol; |
9d2d1dd8 KH |
871 | Lisp_Object target_symbol; |
872 | Lisp_Object converted_selection; | |
ede4db72 | 873 | Time local_selection_time; |
9d2d1dd8 | 874 | Lisp_Object successful_p; |
ede4db72 | 875 | int count; |
5c3a351a RS |
876 | struct x_display_info *dpyinfo |
877 | = x_display_info_for_display (SELECTION_EVENT_DISPLAY (event)); | |
ede4db72 | 878 | |
678b3958 KS |
879 | TRACE2 ("x_handle_selection_request, from=0x%08lx time=%lu", |
880 | (unsigned long) SELECTION_EVENT_REQUESTOR (event), | |
881 | (unsigned long) SELECTION_EVENT_TIME (event)); | |
dd0fe424 | 882 | |
9d2d1dd8 KH |
883 | local_selection_data = Qnil; |
884 | target_symbol = Qnil; | |
885 | converted_selection = Qnil; | |
886 | successful_p = Qnil; | |
887 | ||
ede4db72 RS |
888 | GCPRO3 (local_selection_data, converted_selection, target_symbol); |
889 | ||
d9c0d4a3 | 890 | selection_symbol = x_atom_to_symbol (SELECTION_EVENT_DISPLAY (event), |
ede4db72 RS |
891 | SELECTION_EVENT_SELECTION (event)); |
892 | ||
893 | local_selection_data = assq_no_quit (selection_symbol, Vselection_alist); | |
ede4db72 RS |
894 | |
895 | if (NILP (local_selection_data)) | |
896 | { | |
897 | /* Someone asked for the selection, but we don't have it any more. | |
898 | */ | |
899 | x_decline_selection_request (event); | |
900 | goto DONE; | |
901 | } | |
902 | ||
903 | local_selection_time = (Time) | |
8e713be6 | 904 | cons_to_long (XCAR (XCDR (XCDR (local_selection_data)))); |
ede4db72 RS |
905 | |
906 | if (SELECTION_EVENT_TIME (event) != CurrentTime | |
7da64e5c | 907 | && local_selection_time > SELECTION_EVENT_TIME (event)) |
ede4db72 RS |
908 | { |
909 | /* Someone asked for the selection, and we have one, but not the one | |
910 | they're looking for. | |
911 | */ | |
912 | x_decline_selection_request (event); | |
913 | goto DONE; | |
914 | } | |
915 | ||
ede4db72 | 916 | x_selection_current_request = event; |
331379bf | 917 | count = SPECPDL_INDEX (); |
ca29f2b8 | 918 | selection_request_dpyinfo = dpyinfo; |
ede4db72 RS |
919 | record_unwind_protect (x_selection_request_lisp_error, Qnil); |
920 | ||
d9c0d4a3 | 921 | target_symbol = x_atom_to_symbol (SELECTION_EVENT_DISPLAY (event), |
ede4db72 RS |
922 | SELECTION_EVENT_TARGET (event)); |
923 | ||
924 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
925 | if (EQ (target_symbol, QMULTIPLE)) | |
926 | target_symbol = fetch_multiple_target (event); | |
927 | #endif | |
1b65481e | 928 | |
ede4db72 | 929 | /* Convert lisp objects back into binary data */ |
1b65481e | 930 | |
ede4db72 | 931 | converted_selection |
5109c8dd | 932 | = x_get_local_selection (selection_symbol, target_symbol, 0); |
1b65481e | 933 | |
ede4db72 RS |
934 | if (! NILP (converted_selection)) |
935 | { | |
936 | unsigned char *data; | |
937 | unsigned int size; | |
938 | int format; | |
939 | Atom type; | |
aca39f42 RS |
940 | int nofree; |
941 | ||
866f8518 JD |
942 | if (CONSP (converted_selection) && NILP (XCDR (converted_selection))) |
943 | { | |
944 | x_decline_selection_request (event); | |
945 | goto DONE2; | |
946 | } | |
947 | ||
2f65feb6 RS |
948 | lisp_data_to_selection_data (SELECTION_EVENT_DISPLAY (event), |
949 | converted_selection, | |
aca39f42 | 950 | &data, &type, &size, &format, &nofree); |
1b65481e | 951 | |
ede4db72 RS |
952 | x_reply_selection_request (event, format, data, size, type); |
953 | successful_p = Qt; | |
954 | ||
955 | /* Indicate we have successfully processed this event. */ | |
7da64e5c | 956 | x_selection_current_request = 0; |
ede4db72 | 957 | |
4feb31b2 | 958 | /* Use xfree, not XFree, because lisp_data_to_selection_data |
0158abbc | 959 | calls xmalloc itself. */ |
aca39f42 | 960 | if (!nofree) |
4feb31b2 | 961 | xfree (data); |
ede4db72 | 962 | } |
866f8518 JD |
963 | |
964 | DONE2: | |
ede4db72 RS |
965 | unbind_to (count, Qnil); |
966 | ||
967 | DONE: | |
968 | ||
ede4db72 RS |
969 | /* Let random lisp code notice that the selection has been asked for. */ |
970 | { | |
9d2d1dd8 | 971 | Lisp_Object rest; |
c917a8de | 972 | rest = Vx_sent_selection_functions; |
ede4db72 RS |
973 | if (!EQ (rest, Qunbound)) |
974 | for (; CONSP (rest); rest = Fcdr (rest)) | |
975 | call3 (Fcar (rest), selection_symbol, target_symbol, successful_p); | |
976 | } | |
4f06187f RS |
977 | |
978 | UNGCPRO; | |
ede4db72 RS |
979 | } |
980 | \f | |
e18e6130 | 981 | /* Handle a SelectionClear event EVENT, which indicates that some |
ede4db72 RS |
982 | client cleared out our previously asserted selection. |
983 | This is called from keyboard.c when such an event is found in the queue. */ | |
984 | ||
dd0fe424 | 985 | static void |
971de7fb | 986 | x_handle_selection_clear (struct input_event *event) |
ede4db72 RS |
987 | { |
988 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
989 | Atom selection = SELECTION_EVENT_SELECTION (event); | |
990 | Time changed_owner_time = SELECTION_EVENT_TIME (event); | |
1b65481e | 991 | |
ede4db72 RS |
992 | Lisp_Object selection_symbol, local_selection_data; |
993 | Time local_selection_time; | |
5c3a351a | 994 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
e18e6130 RS |
995 | struct x_display_info *t_dpyinfo; |
996 | ||
dd0fe424 KS |
997 | TRACE0 ("x_handle_selection_clear"); |
998 | ||
e18e6130 RS |
999 | /* If the new selection owner is also Emacs, |
1000 | don't clear the new selection. */ | |
1001 | BLOCK_INPUT; | |
1002 | /* Check each display on the same terminal, | |
1003 | to see if this Emacs job now owns the selection | |
1004 | through that display. */ | |
1005 | for (t_dpyinfo = x_display_list; t_dpyinfo; t_dpyinfo = t_dpyinfo->next) | |
6ed8eeff | 1006 | if (t_dpyinfo->terminal->kboard == dpyinfo->terminal->kboard) |
e18e6130 RS |
1007 | { |
1008 | Window owner_window | |
1009 | = XGetSelectionOwner (t_dpyinfo->display, selection); | |
1010 | if (x_window_to_frame (t_dpyinfo, owner_window) != 0) | |
1011 | { | |
1012 | UNBLOCK_INPUT; | |
1013 | return; | |
1014 | } | |
1015 | } | |
1016 | UNBLOCK_INPUT; | |
d17cf4eb | 1017 | |
d9c0d4a3 | 1018 | selection_symbol = x_atom_to_symbol (display, selection); |
ede4db72 RS |
1019 | |
1020 | local_selection_data = assq_no_quit (selection_symbol, Vselection_alist); | |
1021 | ||
1022 | /* Well, we already believe that we don't own it, so that's just fine. */ | |
1023 | if (NILP (local_selection_data)) return; | |
1024 | ||
1025 | local_selection_time = (Time) | |
8e713be6 | 1026 | cons_to_long (XCAR (XCDR (XCDR (local_selection_data)))); |
ede4db72 RS |
1027 | |
1028 | /* This SelectionClear is for a selection that we no longer own, so we can | |
1029 | disregard it. (That is, we have reasserted the selection since this | |
1030 | request was generated.) */ | |
1031 | ||
1032 | if (changed_owner_time != CurrentTime | |
1033 | && local_selection_time > changed_owner_time) | |
1034 | return; | |
1035 | ||
1036 | /* Otherwise, we're really honest and truly being told to drop it. | |
1037 | Don't use Fdelq as that may QUIT;. */ | |
1038 | ||
1039 | if (EQ (local_selection_data, Fcar (Vselection_alist))) | |
1040 | Vselection_alist = Fcdr (Vselection_alist); | |
1041 | else | |
1042 | { | |
1043 | Lisp_Object rest; | |
99784d63 | 1044 | for (rest = Vselection_alist; CONSP (rest); rest = XCDR (rest)) |
8e713be6 | 1045 | if (EQ (local_selection_data, Fcar (XCDR (rest)))) |
ede4db72 | 1046 | { |
f3fbd155 | 1047 | XSETCDR (rest, Fcdr (XCDR (rest))); |
ede4db72 RS |
1048 | break; |
1049 | } | |
1050 | } | |
1051 | ||
1052 | /* Let random lisp code notice that the selection has been stolen. */ | |
1053 | ||
1054 | { | |
d1f21a66 | 1055 | Lisp_Object rest; |
c917a8de | 1056 | rest = Vx_lost_selection_functions; |
ede4db72 | 1057 | if (!EQ (rest, Qunbound)) |
d1f21a66 RS |
1058 | { |
1059 | for (; CONSP (rest); rest = Fcdr (rest)) | |
1060 | call1 (Fcar (rest), selection_symbol); | |
7c6b2ea4 | 1061 | prepare_menu_bars (); |
3007ebfb | 1062 | redisplay_preserve_echo_area (20); |
d1f21a66 | 1063 | } |
ede4db72 RS |
1064 | } |
1065 | } | |
1066 | ||
dd0fe424 | 1067 | void |
971de7fb | 1068 | x_handle_selection_event (struct input_event *event) |
dd0fe424 KS |
1069 | { |
1070 | TRACE0 ("x_handle_selection_event"); | |
1071 | ||
1072 | if (event->kind == SELECTION_REQUEST_EVENT) | |
1073 | { | |
1074 | if (x_queue_selection_requests) | |
1075 | x_queue_event (event); | |
1076 | else | |
1077 | x_handle_selection_request (event); | |
1078 | } | |
1079 | else | |
1080 | x_handle_selection_clear (event); | |
1081 | } | |
1082 | ||
1083 | ||
118bd841 RS |
1084 | /* Clear all selections that were made from frame F. |
1085 | We do this when about to delete a frame. */ | |
1086 | ||
1087 | void | |
971de7fb | 1088 | x_clear_frame_selections (FRAME_PTR f) |
118bd841 RS |
1089 | { |
1090 | Lisp_Object frame; | |
1091 | Lisp_Object rest; | |
1092 | ||
90851bbe | 1093 | XSETFRAME (frame, f); |
118bd841 RS |
1094 | |
1095 | /* Otherwise, we're really honest and truly being told to drop it. | |
1096 | Don't use Fdelq as that may QUIT;. */ | |
1097 | ||
0d199f9c RS |
1098 | /* Delete elements from the beginning of Vselection_alist. */ |
1099 | while (!NILP (Vselection_alist) | |
1100 | && EQ (frame, Fcar (Fcdr (Fcdr (Fcdr (Fcar (Vselection_alist))))))) | |
1101 | { | |
1102 | /* Let random Lisp code notice that the selection has been stolen. */ | |
1103 | Lisp_Object hooks, selection_symbol; | |
1104 | ||
c917a8de | 1105 | hooks = Vx_lost_selection_functions; |
0d199f9c RS |
1106 | selection_symbol = Fcar (Fcar (Vselection_alist)); |
1107 | ||
1108 | if (!EQ (hooks, Qunbound)) | |
1109 | { | |
1110 | for (; CONSP (hooks); hooks = Fcdr (hooks)) | |
1111 | call1 (Fcar (hooks), selection_symbol); | |
996b804d MB |
1112 | #if 0 /* This can crash when deleting a frame |
1113 | from x_connection_closed. Anyway, it seems unnecessary; | |
1114 | something else should cause a redisplay. */ | |
3007ebfb | 1115 | redisplay_preserve_echo_area (21); |
996b804d | 1116 | #endif |
0d199f9c RS |
1117 | } |
1118 | ||
1119 | Vselection_alist = Fcdr (Vselection_alist); | |
1120 | } | |
1121 | ||
1122 | /* Delete elements after the beginning of Vselection_alist. */ | |
99784d63 | 1123 | for (rest = Vselection_alist; CONSP (rest); rest = XCDR (rest)) |
8e713be6 | 1124 | if (EQ (frame, Fcar (Fcdr (Fcdr (Fcdr (Fcar (XCDR (rest)))))))) |
118bd841 RS |
1125 | { |
1126 | /* Let random Lisp code notice that the selection has been stolen. */ | |
1127 | Lisp_Object hooks, selection_symbol; | |
1128 | ||
c917a8de | 1129 | hooks = Vx_lost_selection_functions; |
8e713be6 | 1130 | selection_symbol = Fcar (Fcar (XCDR (rest))); |
118bd841 RS |
1131 | |
1132 | if (!EQ (hooks, Qunbound)) | |
1133 | { | |
1134 | for (; CONSP (hooks); hooks = Fcdr (hooks)) | |
1135 | call1 (Fcar (hooks), selection_symbol); | |
996b804d | 1136 | #if 0 /* See above */ |
3007ebfb | 1137 | redisplay_preserve_echo_area (22); |
996b804d | 1138 | #endif |
118bd841 | 1139 | } |
f3fbd155 | 1140 | XSETCDR (rest, Fcdr (XCDR (rest))); |
118bd841 RS |
1141 | break; |
1142 | } | |
1143 | } | |
ede4db72 | 1144 | \f |
ede4db72 RS |
1145 | /* Nonzero if any properties for DISPLAY and WINDOW |
1146 | are on the list of what we are waiting for. */ | |
1147 | ||
1148 | static int | |
971de7fb | 1149 | waiting_for_other_props_on_window (Display *display, Window window) |
ede4db72 RS |
1150 | { |
1151 | struct prop_location *rest = property_change_wait_list; | |
1152 | while (rest) | |
1153 | if (rest->display == display && rest->window == window) | |
1154 | return 1; | |
1155 | else | |
1156 | rest = rest->next; | |
1157 | return 0; | |
1158 | } | |
1159 | ||
1160 | /* Add an entry to the list of property changes we are waiting for. | |
1161 | DISPLAY, WINDOW, PROPERTY, STATE describe what we will wait for. | |
1162 | The return value is a number that uniquely identifies | |
1163 | this awaited property change. */ | |
1164 | ||
d1f21a66 | 1165 | static struct prop_location * |
971de7fb | 1166 | expect_property_change (Display *display, Window window, Atom property, int state) |
ede4db72 | 1167 | { |
d9c0d4a3 | 1168 | struct prop_location *pl = (struct prop_location *) xmalloc (sizeof *pl); |
2f65feb6 | 1169 | pl->identifier = ++prop_location_identifier; |
ede4db72 RS |
1170 | pl->display = display; |
1171 | pl->window = window; | |
1172 | pl->property = property; | |
1173 | pl->desired_state = state; | |
1174 | pl->next = property_change_wait_list; | |
d1f21a66 | 1175 | pl->arrived = 0; |
ede4db72 | 1176 | property_change_wait_list = pl; |
d1f21a66 | 1177 | return pl; |
ede4db72 RS |
1178 | } |
1179 | ||
1180 | /* Delete an entry from the list of property changes we are waiting for. | |
2f65feb6 | 1181 | IDENTIFIER is the number that uniquely identifies the entry. */ |
ede4db72 RS |
1182 | |
1183 | static void | |
971de7fb | 1184 | unexpect_property_change (struct prop_location *location) |
ede4db72 RS |
1185 | { |
1186 | struct prop_location *prev = 0, *rest = property_change_wait_list; | |
1187 | while (rest) | |
1188 | { | |
d1f21a66 | 1189 | if (rest == location) |
ede4db72 RS |
1190 | { |
1191 | if (prev) | |
1192 | prev->next = rest->next; | |
1193 | else | |
1194 | property_change_wait_list = rest->next; | |
4feb31b2 | 1195 | xfree (rest); |
ede4db72 RS |
1196 | return; |
1197 | } | |
1198 | prev = rest; | |
1199 | rest = rest->next; | |
1200 | } | |
1201 | } | |
1202 | ||
2f65feb6 RS |
1203 | /* Remove the property change expectation element for IDENTIFIER. */ |
1204 | ||
1205 | static Lisp_Object | |
971de7fb | 1206 | wait_for_property_change_unwind (Lisp_Object loc) |
2f65feb6 | 1207 | { |
dd0fe424 KS |
1208 | struct prop_location *location = XSAVE_VALUE (loc)->pointer; |
1209 | ||
1210 | unexpect_property_change (location); | |
1211 | if (location == property_change_reply_object) | |
1212 | property_change_reply_object = 0; | |
ab552306 | 1213 | return Qnil; |
2f65feb6 RS |
1214 | } |
1215 | ||
ede4db72 | 1216 | /* Actually wait for a property change. |
2f65feb6 | 1217 | IDENTIFIER should be the value that expect_property_change returned. */ |
ede4db72 RS |
1218 | |
1219 | static void | |
971de7fb | 1220 | wait_for_property_change (struct prop_location *location) |
ede4db72 | 1221 | { |
2f65feb6 | 1222 | int secs, usecs; |
aed13378 | 1223 | int count = SPECPDL_INDEX (); |
d1f21a66 | 1224 | |
dd0fe424 KS |
1225 | if (property_change_reply_object) |
1226 | abort (); | |
2f65feb6 RS |
1227 | |
1228 | /* Make sure to do unexpect_property_change if we quit or err. */ | |
dd0fe424 KS |
1229 | record_unwind_protect (wait_for_property_change_unwind, |
1230 | make_save_value (location, 0)); | |
2f65feb6 | 1231 | |
f3fbd155 | 1232 | XSETCAR (property_change_reply, Qnil); |
afe1529d | 1233 | property_change_reply_object = location; |
dd0fe424 | 1234 | |
afe1529d RS |
1235 | /* If the event we are waiting for arrives beyond here, it will set |
1236 | property_change_reply, because property_change_reply_object says so. */ | |
d1f21a66 RS |
1237 | if (! location->arrived) |
1238 | { | |
d1f21a66 RS |
1239 | secs = x_selection_timeout / 1000; |
1240 | usecs = (x_selection_timeout % 1000) * 1000; | |
d9c0d4a3 | 1241 | TRACE2 (" Waiting %d secs, %d usecs", secs, usecs); |
d64b707c KS |
1242 | wait_reading_process_output (secs, usecs, 0, 0, |
1243 | property_change_reply, NULL, 0); | |
d1f21a66 | 1244 | |
8e713be6 | 1245 | if (NILP (XCAR (property_change_reply))) |
d9c0d4a3 GM |
1246 | { |
1247 | TRACE0 (" Timed out"); | |
1248 | error ("Timed out waiting for property-notify event"); | |
1249 | } | |
d1f21a66 | 1250 | } |
2f65feb6 RS |
1251 | |
1252 | unbind_to (count, Qnil); | |
ede4db72 RS |
1253 | } |
1254 | ||
1255 | /* Called from XTread_socket in response to a PropertyNotify event. */ | |
1256 | ||
1257 | void | |
971de7fb | 1258 | x_handle_property_notify (XPropertyEvent *event) |
ede4db72 RS |
1259 | { |
1260 | struct prop_location *prev = 0, *rest = property_change_wait_list; | |
d9c0d4a3 | 1261 | |
ede4db72 RS |
1262 | while (rest) |
1263 | { | |
dd0fe424 KS |
1264 | if (!rest->arrived |
1265 | && rest->property == event->atom | |
ede4db72 RS |
1266 | && rest->window == event->window |
1267 | && rest->display == event->display | |
1268 | && rest->desired_state == event->state) | |
1269 | { | |
d9c0d4a3 GM |
1270 | TRACE2 ("Expected %s of property %s", |
1271 | (event->state == PropertyDelete ? "deletion" : "change"), | |
1272 | XGetAtomName (event->display, event->atom)); | |
ede4db72 | 1273 | |
d1f21a66 RS |
1274 | rest->arrived = 1; |
1275 | ||
ede4db72 RS |
1276 | /* If this is the one wait_for_property_change is waiting for, |
1277 | tell it to wake up. */ | |
d1f21a66 | 1278 | if (rest == property_change_reply_object) |
f3fbd155 | 1279 | XSETCAR (property_change_reply, Qt); |
ede4db72 | 1280 | |
ede4db72 RS |
1281 | return; |
1282 | } | |
1b65481e | 1283 | |
ede4db72 RS |
1284 | prev = rest; |
1285 | rest = rest->next; | |
1286 | } | |
ede4db72 RS |
1287 | } |
1288 | ||
1289 | ||
1290 | \f | |
1291 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1292 | ||
1293 | static Lisp_Object | |
1294 | fetch_multiple_target (event) | |
1295 | XSelectionRequestEvent *event; | |
1296 | { | |
1297 | Display *display = event->display; | |
5d0ba25b | 1298 | Window window = event->requestor; |
ede4db72 RS |
1299 | Atom target = event->target; |
1300 | Atom selection_atom = event->selection; | |
1301 | int result; | |
1302 | ||
1303 | return | |
1304 | Fcons (QMULTIPLE, | |
1305 | x_get_window_property_as_lisp_data (display, window, target, | |
1306 | QMULTIPLE, selection_atom)); | |
1307 | } | |
1308 | ||
1309 | static Lisp_Object | |
1310 | copy_multiple_data (obj) | |
1311 | Lisp_Object obj; | |
1312 | { | |
1313 | Lisp_Object vec; | |
1314 | int i; | |
1315 | int size; | |
1316 | if (CONSP (obj)) | |
8e713be6 | 1317 | return Fcons (XCAR (obj), copy_multiple_data (XCDR (obj))); |
1b65481e | 1318 | |
b7826503 | 1319 | CHECK_VECTOR (obj); |
ede4db72 RS |
1320 | vec = Fmake_vector (size = XVECTOR (obj)->size, Qnil); |
1321 | for (i = 0; i < size; i++) | |
1322 | { | |
1323 | Lisp_Object vec2 = XVECTOR (obj)->contents [i]; | |
b7826503 | 1324 | CHECK_VECTOR (vec2); |
ede4db72 RS |
1325 | if (XVECTOR (vec2)->size != 2) |
1326 | /* ??? Confusing error message */ | |
4d30ce50 | 1327 | signal_error ("Vectors must be of length 2", vec2); |
ede4db72 RS |
1328 | XVECTOR (vec)->contents [i] = Fmake_vector (2, Qnil); |
1329 | XVECTOR (XVECTOR (vec)->contents [i])->contents [0] | |
1330 | = XVECTOR (vec2)->contents [0]; | |
1331 | XVECTOR (XVECTOR (vec)->contents [i])->contents [1] | |
1332 | = XVECTOR (vec2)->contents [1]; | |
1333 | } | |
1334 | return vec; | |
1335 | } | |
1336 | ||
1337 | #endif | |
1338 | ||
1339 | \f | |
1340 | /* Variables for communication with x_handle_selection_notify. */ | |
1341 | static Atom reading_which_selection; | |
1342 | static Lisp_Object reading_selection_reply; | |
1343 | static Window reading_selection_window; | |
1344 | ||
1345 | /* Do protocol to read selection-data from the server. | |
1346 | Converts this to Lisp data and returns it. */ | |
1347 | ||
1348 | static Lisp_Object | |
971de7fb | 1349 | x_get_foreign_selection (Lisp_Object selection_symbol, Lisp_Object target_type, Lisp_Object time_stamp) |
ede4db72 | 1350 | { |
378c33ca | 1351 | struct frame *sf = SELECTED_FRAME (); |
428a555e KL |
1352 | Window requestor_window; |
1353 | Display *display; | |
1354 | struct x_display_info *dpyinfo; | |
5d0ba25b | 1355 | Time requestor_time = last_event_timestamp; |
428a555e KL |
1356 | Atom target_property; |
1357 | Atom selection_atom; | |
ede4db72 | 1358 | Atom type_atom; |
80da0190 | 1359 | int secs, usecs; |
c525d842 | 1360 | int count = SPECPDL_INDEX (); |
55b2d45d | 1361 | Lisp_Object frame; |
ede4db72 | 1362 | |
428a555e KL |
1363 | if (! FRAME_X_P (sf)) |
1364 | return Qnil; | |
1365 | ||
1366 | requestor_window = FRAME_X_WINDOW (sf); | |
1367 | display = FRAME_X_DISPLAY (sf); | |
1368 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
1369 | target_property = dpyinfo->Xatom_EMACS_TMP; | |
1370 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection_symbol); | |
1371 | ||
ede4db72 | 1372 | if (CONSP (target_type)) |
8e713be6 | 1373 | type_atom = symbol_to_x_atom (dpyinfo, display, XCAR (target_type)); |
ede4db72 | 1374 | else |
5c3a351a | 1375 | type_atom = symbol_to_x_atom (dpyinfo, display, target_type); |
ede4db72 | 1376 | |
3a42401d JD |
1377 | if (! NILP (time_stamp)) |
1378 | { | |
1379 | if (CONSP (time_stamp)) | |
1380 | requestor_time = (Time) cons_to_long (time_stamp); | |
1381 | else if (INTEGERP (time_stamp)) | |
1382 | requestor_time = (Time) XUINT (time_stamp); | |
1383 | else if (FLOATP (time_stamp)) | |
ff59904a | 1384 | requestor_time = (Time) XFLOAT_DATA (time_stamp); |
3a42401d JD |
1385 | else |
1386 | error ("TIME_STAMP must be cons or number"); | |
1387 | } | |
1388 | ||
ede4db72 | 1389 | BLOCK_INPUT; |
1b65481e | 1390 | |
c525d842 CY |
1391 | /* The protected block contains wait_reading_process_output, which |
1392 | can run random lisp code (process handlers) or signal. | |
1393 | Therefore, we put the x_uncatch_errors call in an unwind. */ | |
1394 | record_unwind_protect (x_catch_errors_unwind, Qnil); | |
9ba8e10d | 1395 | x_catch_errors (display); |
1b65481e | 1396 | |
d9c0d4a3 GM |
1397 | TRACE2 ("Get selection %s, type %s", |
1398 | XGetAtomName (display, type_atom), | |
1399 | XGetAtomName (display, target_property)); | |
1400 | ||
ede4db72 | 1401 | XConvertSelection (display, selection_atom, type_atom, target_property, |
5d0ba25b | 1402 | requestor_window, requestor_time); |
5c3a351a | 1403 | XFlush (display); |
ede4db72 RS |
1404 | |
1405 | /* Prepare to block until the reply has been read. */ | |
5d0ba25b | 1406 | reading_selection_window = requestor_window; |
ede4db72 | 1407 | reading_which_selection = selection_atom; |
f3fbd155 | 1408 | XSETCAR (reading_selection_reply, Qnil); |
55b2d45d RS |
1409 | |
1410 | frame = some_frame_on_display (dpyinfo); | |
1411 | ||
1412 | /* If the display no longer has frames, we can't expect | |
1413 | to get many more selection requests from it, so don't | |
1414 | bother trying to queue them. */ | |
1415 | if (!NILP (frame)) | |
1416 | { | |
dd0fe424 | 1417 | x_start_queuing_selection_requests (); |
55b2d45d RS |
1418 | |
1419 | record_unwind_protect (queue_selection_requests_unwind, | |
dd0fe424 | 1420 | Qnil); |
55b2d45d | 1421 | } |
ede4db72 RS |
1422 | UNBLOCK_INPUT; |
1423 | ||
80da0190 RS |
1424 | /* This allows quits. Also, don't wait forever. */ |
1425 | secs = x_selection_timeout / 1000; | |
1426 | usecs = (x_selection_timeout % 1000) * 1000; | |
d9c0d4a3 | 1427 | TRACE1 (" Start waiting %d secs for SelectionNotify", secs); |
d64b707c KS |
1428 | wait_reading_process_output (secs, usecs, 0, 0, |
1429 | reading_selection_reply, NULL, 0); | |
d9c0d4a3 | 1430 | TRACE1 (" Got event = %d", !NILP (XCAR (reading_selection_reply))); |
ede4db72 | 1431 | |
7c6b2ea4 | 1432 | BLOCK_INPUT; |
c525d842 CY |
1433 | if (x_had_errors_p (display)) |
1434 | error ("Cannot get selection"); | |
1435 | /* This calls x_uncatch_errors. */ | |
9ba8e10d | 1436 | unbind_to (count, Qnil); |
7c6b2ea4 RS |
1437 | UNBLOCK_INPUT; |
1438 | ||
8e713be6 | 1439 | if (NILP (XCAR (reading_selection_reply))) |
606140dd | 1440 | error ("Timed out waiting for reply from selection owner"); |
8e713be6 | 1441 | if (EQ (XCAR (reading_selection_reply), Qlambda)) |
12061f06 | 1442 | return Qnil; |
ede4db72 RS |
1443 | |
1444 | /* Otherwise, the selection is waiting for us on the requested property. */ | |
1445 | return | |
5d0ba25b | 1446 | x_get_window_property_as_lisp_data (display, requestor_window, |
ede4db72 RS |
1447 | target_property, target_type, |
1448 | selection_atom); | |
1449 | } | |
1450 | \f | |
1451 | /* Subroutines of x_get_window_property_as_lisp_data */ | |
1452 | ||
4feb31b2 | 1453 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1454 | |
ede4db72 RS |
1455 | static void |
1456 | x_get_window_property (display, window, property, data_ret, bytes_ret, | |
1457 | actual_type_ret, actual_format_ret, actual_size_ret, | |
1458 | delete_p) | |
1459 | Display *display; | |
1460 | Window window; | |
1461 | Atom property; | |
1462 | unsigned char **data_ret; | |
1463 | int *bytes_ret; | |
1464 | Atom *actual_type_ret; | |
1465 | int *actual_format_ret; | |
1466 | unsigned long *actual_size_ret; | |
1467 | int delete_p; | |
1468 | { | |
1469 | int total_size; | |
1470 | unsigned long bytes_remaining; | |
1471 | int offset = 0; | |
1472 | unsigned char *tmp_data = 0; | |
1473 | int result; | |
1474 | int buffer_size = SELECTION_QUANTUM (display); | |
1b65481e | 1475 | |
d9c0d4a3 GM |
1476 | if (buffer_size > MAX_SELECTION_QUANTUM) |
1477 | buffer_size = MAX_SELECTION_QUANTUM; | |
1b65481e | 1478 | |
ede4db72 | 1479 | BLOCK_INPUT; |
1b65481e | 1480 | |
ede4db72 RS |
1481 | /* First probe the thing to find out how big it is. */ |
1482 | result = XGetWindowProperty (display, window, property, | |
137edb72 | 1483 | 0L, 0L, False, AnyPropertyType, |
ede4db72 RS |
1484 | actual_type_ret, actual_format_ret, |
1485 | actual_size_ret, | |
1486 | &bytes_remaining, &tmp_data); | |
ede4db72 RS |
1487 | if (result != Success) |
1488 | { | |
2f65feb6 | 1489 | UNBLOCK_INPUT; |
ede4db72 RS |
1490 | *data_ret = 0; |
1491 | *bytes_ret = 0; | |
1492 | return; | |
1493 | } | |
1b65481e | 1494 | |
0158abbc RS |
1495 | /* This was allocated by Xlib, so use XFree. */ |
1496 | XFree ((char *) tmp_data); | |
1b65481e | 1497 | |
ede4db72 RS |
1498 | if (*actual_type_ret == None || *actual_format_ret == 0) |
1499 | { | |
2f65feb6 | 1500 | UNBLOCK_INPUT; |
ede4db72 RS |
1501 | return; |
1502 | } | |
1503 | ||
1504 | total_size = bytes_remaining + 1; | |
1505 | *data_ret = (unsigned char *) xmalloc (total_size); | |
1b65481e | 1506 | |
2a1a4c9d | 1507 | /* Now read, until we've gotten it all. */ |
ede4db72 RS |
1508 | while (bytes_remaining) |
1509 | { | |
d9c0d4a3 | 1510 | #ifdef TRACE_SELECTION |
ede4db72 RS |
1511 | int last = bytes_remaining; |
1512 | #endif | |
1513 | result | |
1514 | = XGetWindowProperty (display, window, property, | |
137edb72 | 1515 | (long)offset/4, (long)buffer_size/4, |
2f65feb6 | 1516 | False, |
ede4db72 RS |
1517 | AnyPropertyType, |
1518 | actual_type_ret, actual_format_ret, | |
1519 | actual_size_ret, &bytes_remaining, &tmp_data); | |
d9c0d4a3 GM |
1520 | |
1521 | TRACE2 ("Read %ld bytes from property %s", | |
1522 | last - bytes_remaining, | |
1523 | XGetAtomName (display, property)); | |
1524 | ||
ede4db72 RS |
1525 | /* If this doesn't return Success at this point, it means that |
1526 | some clod deleted the selection while we were in the midst of | |
d9c0d4a3 GM |
1527 | reading it. Deal with that, I guess.... */ |
1528 | if (result != Success) | |
1529 | break; | |
e22cf39c JD |
1530 | |
1531 | /* The man page for XGetWindowProperty says: | |
1532 | "If the returned format is 32, the returned data is represented | |
1533 | as a long array and should be cast to that type to obtain the | |
1534 | elements." | |
1535 | This applies even if long is more than 32 bits, the X library | |
1536 | converts from 32 bit elements received from the X server to long | |
72af86bd | 1537 | and passes the long array to us. Thus, for that case memcpy can not |
e22cf39c JD |
1538 | be used. We convert to a 32 bit type here, because so much code |
1539 | assume on that. | |
1540 | ||
1541 | The bytes and offsets passed to XGetWindowProperty refers to the | |
1542 | property and those are indeed in 32 bit quantities if format is 32. */ | |
1543 | ||
1544 | if (*actual_format_ret == 32 && *actual_format_ret < BITS_PER_LONG) | |
1545 | { | |
1546 | unsigned long i; | |
1547 | int *idata = (int *) ((*data_ret) + offset); | |
1548 | long *ldata = (long *) tmp_data; | |
1549 | ||
1550 | for (i = 0; i < *actual_size_ret; ++i) | |
1551 | { | |
1552 | idata[i]= (int) ldata[i]; | |
1553 | offset += 4; | |
1554 | } | |
1555 | } | |
1556 | else | |
1557 | { | |
1558 | *actual_size_ret *= *actual_format_ret / 8; | |
72af86bd | 1559 | memcpy ((*data_ret) + offset, tmp_data, *actual_size_ret); |
e22cf39c JD |
1560 | offset += *actual_size_ret; |
1561 | } | |
1b65481e | 1562 | |
0158abbc RS |
1563 | /* This was allocated by Xlib, so use XFree. */ |
1564 | XFree ((char *) tmp_data); | |
ede4db72 | 1565 | } |
2f65feb6 | 1566 | |
5c3a351a | 1567 | XFlush (display); |
ede4db72 RS |
1568 | UNBLOCK_INPUT; |
1569 | *bytes_ret = offset; | |
1570 | } | |
1571 | \f | |
4feb31b2 | 1572 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1573 | |
ede4db72 RS |
1574 | static void |
1575 | receive_incremental_selection (display, window, property, target_type, | |
1576 | min_size_bytes, data_ret, size_bytes_ret, | |
1577 | type_ret, format_ret, size_ret) | |
1578 | Display *display; | |
1579 | Window window; | |
1580 | Atom property; | |
1581 | Lisp_Object target_type; /* for error messages only */ | |
1582 | unsigned int min_size_bytes; | |
1583 | unsigned char **data_ret; | |
1584 | int *size_bytes_ret; | |
1585 | Atom *type_ret; | |
1586 | unsigned long *size_ret; | |
1587 | int *format_ret; | |
1588 | { | |
1589 | int offset = 0; | |
d1f21a66 | 1590 | struct prop_location *wait_object; |
ede4db72 RS |
1591 | *size_bytes_ret = min_size_bytes; |
1592 | *data_ret = (unsigned char *) xmalloc (*size_bytes_ret); | |
d9c0d4a3 GM |
1593 | |
1594 | TRACE1 ("Read %d bytes incrementally", min_size_bytes); | |
2f65feb6 RS |
1595 | |
1596 | /* At this point, we have read an INCR property. | |
1597 | Delete the property to ack it. | |
1598 | (But first, prepare to receive the next event in this handshake.) | |
ede4db72 RS |
1599 | |
1600 | Now, we must loop, waiting for the sending window to put a value on | |
1601 | that property, then reading the property, then deleting it to ack. | |
1602 | We are done when the sender places a property of length 0. | |
1603 | */ | |
2f65feb6 RS |
1604 | BLOCK_INPUT; |
1605 | XSelectInput (display, window, STANDARD_EVENT_SET | PropertyChangeMask); | |
d9c0d4a3 | 1606 | TRACE1 (" Delete property %s", |
dd0fe424 | 1607 | SDATA (SYMBOL_NAME (x_atom_to_symbol (display, property)))); |
2f65feb6 | 1608 | XDeleteProperty (display, window, property); |
d9c0d4a3 | 1609 | TRACE1 (" Expect new value of property %s", |
dd0fe424 | 1610 | SDATA (SYMBOL_NAME (x_atom_to_symbol (display, property)))); |
d1f21a66 RS |
1611 | wait_object = expect_property_change (display, window, property, |
1612 | PropertyNewValue); | |
5c3a351a | 1613 | XFlush (display); |
2f65feb6 RS |
1614 | UNBLOCK_INPUT; |
1615 | ||
ede4db72 RS |
1616 | while (1) |
1617 | { | |
1618 | unsigned char *tmp_data; | |
1619 | int tmp_size_bytes; | |
d9c0d4a3 GM |
1620 | |
1621 | TRACE0 (" Wait for property change"); | |
d1f21a66 | 1622 | wait_for_property_change (wait_object); |
1b65481e | 1623 | |
ede4db72 | 1624 | /* expect it again immediately, because x_get_window_property may |
2a1a4c9d | 1625 | .. no it won't, I don't get it. |
d9c0d4a3 GM |
1626 | .. Ok, I get it now, the Xt code that implements INCR is broken. */ |
1627 | TRACE0 (" Get property value"); | |
ede4db72 RS |
1628 | x_get_window_property (display, window, property, |
1629 | &tmp_data, &tmp_size_bytes, | |
1630 | type_ret, format_ret, size_ret, 1); | |
1631 | ||
d9c0d4a3 GM |
1632 | TRACE1 (" Read increment of %d bytes", tmp_size_bytes); |
1633 | ||
ede4db72 RS |
1634 | if (tmp_size_bytes == 0) /* we're done */ |
1635 | { | |
d9c0d4a3 GM |
1636 | TRACE0 ("Done reading incrementally"); |
1637 | ||
2f65feb6 RS |
1638 | if (! waiting_for_other_props_on_window (display, window)) |
1639 | XSelectInput (display, window, STANDARD_EVENT_SET); | |
4feb31b2 | 1640 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1641 | calls xmalloc itself. */ |
70fdbb46 | 1642 | xfree (tmp_data); |
ede4db72 RS |
1643 | break; |
1644 | } | |
2f65feb6 RS |
1645 | |
1646 | BLOCK_INPUT; | |
d9c0d4a3 GM |
1647 | TRACE1 (" ACK by deleting property %s", |
1648 | XGetAtomName (display, property)); | |
2f65feb6 | 1649 | XDeleteProperty (display, window, property); |
d1f21a66 RS |
1650 | wait_object = expect_property_change (display, window, property, |
1651 | PropertyNewValue); | |
5c3a351a | 1652 | XFlush (display); |
2f65feb6 RS |
1653 | UNBLOCK_INPUT; |
1654 | ||
ede4db72 RS |
1655 | if (*size_bytes_ret < offset + tmp_size_bytes) |
1656 | { | |
ede4db72 RS |
1657 | *size_bytes_ret = offset + tmp_size_bytes; |
1658 | *data_ret = (unsigned char *) xrealloc (*data_ret, *size_bytes_ret); | |
1659 | } | |
1b65481e | 1660 | |
72af86bd | 1661 | memcpy ((*data_ret) + offset, tmp_data, tmp_size_bytes); |
ede4db72 | 1662 | offset += tmp_size_bytes; |
1b65481e | 1663 | |
4feb31b2 | 1664 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1665 | calls xmalloc itself. */ |
4feb31b2 | 1666 | xfree (tmp_data); |
ede4db72 RS |
1667 | } |
1668 | } | |
d9c0d4a3 | 1669 | |
ede4db72 RS |
1670 | \f |
1671 | /* Once a requested selection is "ready" (we got a SelectionNotify event), | |
1672 | fetch value from property PROPERTY of X window WINDOW on display DISPLAY. | |
1673 | TARGET_TYPE and SELECTION_ATOM are used in error message if this fails. */ | |
1674 | ||
1675 | static Lisp_Object | |
1676 | x_get_window_property_as_lisp_data (display, window, property, target_type, | |
1677 | selection_atom) | |
1678 | Display *display; | |
1679 | Window window; | |
1680 | Atom property; | |
1681 | Lisp_Object target_type; /* for error messages only */ | |
1682 | Atom selection_atom; /* for error messages only */ | |
1683 | { | |
1684 | Atom actual_type; | |
1685 | int actual_format; | |
1686 | unsigned long actual_size; | |
1687 | unsigned char *data = 0; | |
1688 | int bytes = 0; | |
1689 | Lisp_Object val; | |
5c3a351a | 1690 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 | 1691 | |
d9c0d4a3 GM |
1692 | TRACE0 ("Reading selection data"); |
1693 | ||
ede4db72 RS |
1694 | x_get_window_property (display, window, property, &data, &bytes, |
1695 | &actual_type, &actual_format, &actual_size, 1); | |
1696 | if (! data) | |
1697 | { | |
1698 | int there_is_a_selection_owner; | |
1699 | BLOCK_INPUT; | |
1700 | there_is_a_selection_owner | |
1701 | = XGetSelectionOwner (display, selection_atom); | |
1702 | UNBLOCK_INPUT; | |
4d30ce50 KS |
1703 | if (there_is_a_selection_owner) |
1704 | signal_error ("Selection owner couldn't convert", | |
1705 | actual_type | |
1706 | ? list2 (target_type, | |
1707 | x_atom_to_symbol (display, actual_type)) | |
1708 | : target_type); | |
1709 | else | |
1710 | signal_error ("No selection", | |
1711 | x_atom_to_symbol (display, selection_atom)); | |
ede4db72 | 1712 | } |
1b65481e | 1713 | |
5c3a351a | 1714 | if (actual_type == dpyinfo->Xatom_INCR) |
ede4db72 RS |
1715 | { |
1716 | /* That wasn't really the data, just the beginning. */ | |
1717 | ||
1718 | unsigned int min_size_bytes = * ((unsigned int *) data); | |
1719 | BLOCK_INPUT; | |
4feb31b2 | 1720 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1721 | calls xmalloc itself. */ |
4feb31b2 | 1722 | xfree ((char *) data); |
ede4db72 RS |
1723 | UNBLOCK_INPUT; |
1724 | receive_incremental_selection (display, window, property, target_type, | |
1725 | min_size_bytes, &data, &bytes, | |
1726 | &actual_type, &actual_format, | |
1727 | &actual_size); | |
1728 | } | |
1729 | ||
2f65feb6 | 1730 | BLOCK_INPUT; |
d9c0d4a3 | 1731 | TRACE1 (" Delete property %s", XGetAtomName (display, property)); |
2f65feb6 | 1732 | XDeleteProperty (display, window, property); |
5c3a351a | 1733 | XFlush (display); |
2f65feb6 RS |
1734 | UNBLOCK_INPUT; |
1735 | ||
ede4db72 RS |
1736 | /* It's been read. Now convert it to a lisp object in some semi-rational |
1737 | manner. */ | |
1738 | val = selection_data_to_lisp_data (display, data, bytes, | |
1739 | actual_type, actual_format); | |
1b65481e | 1740 | |
4feb31b2 | 1741 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1742 | calls xmalloc itself. */ |
4feb31b2 | 1743 | xfree ((char *) data); |
ede4db72 RS |
1744 | return val; |
1745 | } | |
1746 | \f | |
1747 | /* These functions convert from the selection data read from the server into | |
1748 | something that we can use from Lisp, and vice versa. | |
1749 | ||
1750 | Type: Format: Size: Lisp Type: | |
1751 | ----- ------- ----- ----------- | |
1752 | * 8 * String | |
1753 | ATOM 32 1 Symbol | |
1754 | ATOM 32 > 1 Vector of Symbols | |
1755 | * 16 1 Integer | |
1756 | * 16 > 1 Vector of Integers | |
1757 | * 32 1 if <=16 bits: Integer | |
1758 | if > 16 bits: Cons of top16, bot16 | |
1759 | * 32 > 1 Vector of the above | |
1760 | ||
1761 | When converting a Lisp number to C, it is assumed to be of format 16 if | |
1762 | it is an integer, and of format 32 if it is a cons of two integers. | |
1763 | ||
1764 | When converting a vector of numbers from Lisp to C, it is assumed to be | |
1765 | of format 16 if every element in the vector is an integer, and is assumed | |
1766 | to be of format 32 if any element is a cons of two integers. | |
1767 | ||
1768 | When converting an object to C, it may be of the form (SYMBOL . <data>) | |
1769 | where SYMBOL is what we should claim that the type is. Format and | |
b8d6f4af JD |
1770 | representation are as above. |
1771 | ||
1772 | Important: When format is 32, data should contain an array of int, | |
1773 | not an array of long as the X library returns. This makes a difference | |
1774 | when sizeof(long) != sizeof(int). */ | |
ede4db72 RS |
1775 | |
1776 | ||
1777 | ||
1778 | static Lisp_Object | |
971de7fb | 1779 | selection_data_to_lisp_data (Display *display, unsigned char *data, int size, Atom type, int format) |
ede4db72 | 1780 | { |
5c3a351a | 1781 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 | 1782 | |
5c3a351a | 1783 | if (type == dpyinfo->Xatom_NULL) |
ede4db72 RS |
1784 | return QNULL; |
1785 | ||
1786 | /* Convert any 8-bit data to a string, for compactness. */ | |
1787 | else if (format == 8) | |
e6c7c988 | 1788 | { |
e57ad4d8 KH |
1789 | Lisp_Object str, lispy_type; |
1790 | ||
1791 | str = make_unibyte_string ((char *) data, size); | |
1792 | /* Indicate that this string is from foreign selection by a text | |
1793 | property `foreign-selection' so that the caller of | |
1794 | x-get-selection-internal (usually x-get-selection) can know | |
1795 | that the string must be decode. */ | |
1796 | if (type == dpyinfo->Xatom_COMPOUND_TEXT) | |
1797 | lispy_type = QCOMPOUND_TEXT; | |
1798 | else if (type == dpyinfo->Xatom_UTF8_STRING) | |
1799 | lispy_type = QUTF8_STRING; | |
e6c7c988 | 1800 | else |
e57ad4d8 KH |
1801 | lispy_type = QSTRING; |
1802 | Fput_text_property (make_number (0), make_number (size), | |
1803 | Qforeign_selection, lispy_type, str); | |
e6c7c988 KH |
1804 | return str; |
1805 | } | |
ede4db72 RS |
1806 | /* Convert a single atom to a Lisp_Symbol. Convert a set of atoms to |
1807 | a vector of symbols. | |
1808 | */ | |
1809 | else if (type == XA_ATOM) | |
1810 | { | |
1811 | int i; | |
b8d6f4af JD |
1812 | /* On a 64 bit machine sizeof(Atom) == sizeof(long) == 8. |
1813 | But the callers of these function has made sure the data for | |
1814 | format == 32 is an array of int. Thus, use int instead | |
1815 | of Atom. */ | |
1816 | int *idata = (int *) data; | |
1817 | ||
1818 | if (size == sizeof (int)) | |
1819 | return x_atom_to_symbol (display, (Atom) idata[0]); | |
ede4db72 RS |
1820 | else |
1821 | { | |
b8d6f4af | 1822 | Lisp_Object v = Fmake_vector (make_number (size / sizeof (int)), |
e607a484 | 1823 | make_number (0)); |
b8d6f4af | 1824 | for (i = 0; i < size / sizeof (int); i++) |
e607a484 | 1825 | Faset (v, make_number (i), |
b8d6f4af | 1826 | x_atom_to_symbol (display, (Atom) idata[i])); |
ede4db72 RS |
1827 | return v; |
1828 | } | |
1829 | } | |
1830 | ||
1ad08acd RS |
1831 | /* Convert a single 16-bit number or a small 32-bit number to a Lisp_Int. |
1832 | If the number is 32 bits and won't fit in a Lisp_Int, | |
1833 | convert it to a cons of integers, 16 bits in each half. | |
ede4db72 | 1834 | */ |
2f51feb8 AS |
1835 | else if (format == 32 && size == sizeof (int)) |
1836 | return long_to_cons (((unsigned int *) data) [0]); | |
ede4db72 RS |
1837 | else if (format == 16 && size == sizeof (short)) |
1838 | return make_number ((int) (((unsigned short *) data) [0])); | |
1839 | ||
1840 | /* Convert any other kind of data to a vector of numbers, represented | |
1841 | as above (as an integer, or a cons of two 16 bit integers.) | |
1842 | */ | |
1843 | else if (format == 16) | |
1844 | { | |
1845 | int i; | |
937a3875 RS |
1846 | Lisp_Object v; |
1847 | v = Fmake_vector (make_number (size / 2), make_number (0)); | |
1848 | for (i = 0; i < size / 2; i++) | |
ede4db72 RS |
1849 | { |
1850 | int j = (int) ((unsigned short *) data) [i]; | |
e607a484 | 1851 | Faset (v, make_number (i), make_number (j)); |
ede4db72 RS |
1852 | } |
1853 | return v; | |
1854 | } | |
1855 | else | |
1856 | { | |
1857 | int i; | |
e607a484 | 1858 | Lisp_Object v = Fmake_vector (make_number (size / 4), make_number (0)); |
ede4db72 RS |
1859 | for (i = 0; i < size / 4; i++) |
1860 | { | |
2f51feb8 | 1861 | unsigned int j = ((unsigned int *) data) [i]; |
e607a484 | 1862 | Faset (v, make_number (i), long_to_cons (j)); |
ede4db72 RS |
1863 | } |
1864 | return v; | |
1865 | } | |
1866 | } | |
1867 | ||
1868 | ||
4feb31b2 | 1869 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1870 | |
ede4db72 RS |
1871 | static void |
1872 | lisp_data_to_selection_data (display, obj, | |
aca39f42 RS |
1873 | data_ret, type_ret, size_ret, |
1874 | format_ret, nofree_ret) | |
ede4db72 RS |
1875 | Display *display; |
1876 | Lisp_Object obj; | |
1877 | unsigned char **data_ret; | |
1878 | Atom *type_ret; | |
1879 | unsigned int *size_ret; | |
1880 | int *format_ret; | |
aca39f42 | 1881 | int *nofree_ret; |
ede4db72 RS |
1882 | { |
1883 | Lisp_Object type = Qnil; | |
5c3a351a | 1884 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
aca39f42 RS |
1885 | |
1886 | *nofree_ret = 0; | |
1887 | ||
8e713be6 | 1888 | if (CONSP (obj) && SYMBOLP (XCAR (obj))) |
ede4db72 | 1889 | { |
8e713be6 KR |
1890 | type = XCAR (obj); |
1891 | obj = XCDR (obj); | |
1892 | if (CONSP (obj) && NILP (XCDR (obj))) | |
1893 | obj = XCAR (obj); | |
ede4db72 RS |
1894 | } |
1895 | ||
1896 | if (EQ (obj, QNULL) || (EQ (type, QNULL))) | |
1897 | { /* This is not the same as declining */ | |
1898 | *format_ret = 32; | |
1899 | *size_ret = 0; | |
1900 | *data_ret = 0; | |
1901 | type = QNULL; | |
1902 | } | |
1903 | else if (STRINGP (obj)) | |
1904 | { | |
1bd70c6e KH |
1905 | if (SCHARS (obj) < SBYTES (obj)) |
1906 | /* OBJ is a multibyte string containing a non-ASCII char. */ | |
4d30ce50 | 1907 | signal_error ("Non-ASCII string must be encoded in advance", obj); |
7b9ae523 | 1908 | if (NILP (type)) |
5109c8dd KH |
1909 | type = QSTRING; |
1910 | *format_ret = 8; | |
1911 | *size_ret = SBYTES (obj); | |
1912 | *data_ret = SDATA (obj); | |
1913 | *nofree_ret = 1; | |
ede4db72 RS |
1914 | } |
1915 | else if (SYMBOLP (obj)) | |
1916 | { | |
1917 | *format_ret = 32; | |
1918 | *size_ret = 1; | |
1919 | *data_ret = (unsigned char *) xmalloc (sizeof (Atom) + 1); | |
1920 | (*data_ret) [sizeof (Atom)] = 0; | |
5c3a351a | 1921 | (*(Atom **) data_ret) [0] = symbol_to_x_atom (dpyinfo, display, obj); |
ede4db72 RS |
1922 | if (NILP (type)) type = QATOM; |
1923 | } | |
7da64e5c | 1924 | else if (INTEGERP (obj) |
ede4db72 RS |
1925 | && XINT (obj) < 0xFFFF |
1926 | && XINT (obj) > -0xFFFF) | |
1927 | { | |
1928 | *format_ret = 16; | |
1929 | *size_ret = 1; | |
1930 | *data_ret = (unsigned char *) xmalloc (sizeof (short) + 1); | |
1931 | (*data_ret) [sizeof (short)] = 0; | |
1932 | (*(short **) data_ret) [0] = (short) XINT (obj); | |
1933 | if (NILP (type)) type = QINTEGER; | |
1934 | } | |
a87ed99c | 1935 | else if (INTEGERP (obj) |
8e713be6 KR |
1936 | || (CONSP (obj) && INTEGERP (XCAR (obj)) |
1937 | && (INTEGERP (XCDR (obj)) | |
1938 | || (CONSP (XCDR (obj)) | |
1939 | && INTEGERP (XCAR (XCDR (obj))))))) | |
ede4db72 RS |
1940 | { |
1941 | *format_ret = 32; | |
1942 | *size_ret = 1; | |
1943 | *data_ret = (unsigned char *) xmalloc (sizeof (long) + 1); | |
1944 | (*data_ret) [sizeof (long)] = 0; | |
1945 | (*(unsigned long **) data_ret) [0] = cons_to_long (obj); | |
1946 | if (NILP (type)) type = QINTEGER; | |
1947 | } | |
1948 | else if (VECTORP (obj)) | |
1949 | { | |
1950 | /* Lisp_Vectors may represent a set of ATOMs; | |
1951 | a set of 16 or 32 bit INTEGERs; | |
1952 | or a set of ATOM_PAIRs (represented as [[A1 A2] [A3 A4] ...] | |
1953 | */ | |
1954 | int i; | |
1955 | ||
1956 | if (SYMBOLP (XVECTOR (obj)->contents [0])) | |
1957 | /* This vector is an ATOM set */ | |
1958 | { | |
1959 | if (NILP (type)) type = QATOM; | |
1960 | *size_ret = XVECTOR (obj)->size; | |
1961 | *format_ret = 32; | |
1962 | *data_ret = (unsigned char *) xmalloc ((*size_ret) * sizeof (Atom)); | |
1963 | for (i = 0; i < *size_ret; i++) | |
1964 | if (SYMBOLP (XVECTOR (obj)->contents [i])) | |
1965 | (*(Atom **) data_ret) [i] | |
5c3a351a | 1966 | = symbol_to_x_atom (dpyinfo, display, XVECTOR (obj)->contents [i]); |
ede4db72 | 1967 | else |
4d30ce50 | 1968 | signal_error ("All elements of selection vector must have same type", obj); |
ede4db72 RS |
1969 | } |
1970 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1971 | else if (VECTORP (XVECTOR (obj)->contents [0])) | |
1972 | /* This vector is an ATOM_PAIR set */ | |
1973 | { | |
1974 | if (NILP (type)) type = QATOM_PAIR; | |
1975 | *size_ret = XVECTOR (obj)->size; | |
1976 | *format_ret = 32; | |
1977 | *data_ret = (unsigned char *) | |
1978 | xmalloc ((*size_ret) * sizeof (Atom) * 2); | |
1979 | for (i = 0; i < *size_ret; i++) | |
1980 | if (VECTORP (XVECTOR (obj)->contents [i])) | |
1981 | { | |
1982 | Lisp_Object pair = XVECTOR (obj)->contents [i]; | |
1983 | if (XVECTOR (pair)->size != 2) | |
4d30ce50 KS |
1984 | signal_error ( |
1985 | "Elements of the vector must be vectors of exactly two elements", | |
1986 | pair); | |
1b65481e | 1987 | |
ede4db72 | 1988 | (*(Atom **) data_ret) [i * 2] |
5c3a351a RS |
1989 | = symbol_to_x_atom (dpyinfo, display, |
1990 | XVECTOR (pair)->contents [0]); | |
ede4db72 | 1991 | (*(Atom **) data_ret) [(i * 2) + 1] |
5c3a351a RS |
1992 | = symbol_to_x_atom (dpyinfo, display, |
1993 | XVECTOR (pair)->contents [1]); | |
ede4db72 RS |
1994 | } |
1995 | else | |
4d30ce50 KS |
1996 | signal_error ("All elements of the vector must be of the same type", |
1997 | obj); | |
1b65481e | 1998 | |
ede4db72 RS |
1999 | } |
2000 | #endif | |
2001 | else | |
2002 | /* This vector is an INTEGER set, or something like it */ | |
2003 | { | |
e22cf39c | 2004 | int data_size = 2; |
ede4db72 RS |
2005 | *size_ret = XVECTOR (obj)->size; |
2006 | if (NILP (type)) type = QINTEGER; | |
2007 | *format_ret = 16; | |
2008 | for (i = 0; i < *size_ret; i++) | |
2009 | if (CONSP (XVECTOR (obj)->contents [i])) | |
2010 | *format_ret = 32; | |
7da64e5c | 2011 | else if (!INTEGERP (XVECTOR (obj)->contents [i])) |
4d30ce50 KS |
2012 | signal_error (/* Qselection_error */ |
2013 | "Elements of selection vector must be integers or conses of integers", | |
2014 | obj); | |
ede4db72 | 2015 | |
e22cf39c JD |
2016 | /* Use sizeof(long) even if it is more than 32 bits. See comment |
2017 | in x_get_window_property and x_fill_property_data. */ | |
6e816df5 | 2018 | |
e22cf39c JD |
2019 | if (*format_ret == 32) data_size = sizeof(long); |
2020 | *data_ret = (unsigned char *) xmalloc (*size_ret * data_size); | |
ede4db72 RS |
2021 | for (i = 0; i < *size_ret; i++) |
2022 | if (*format_ret == 32) | |
2023 | (*((unsigned long **) data_ret)) [i] | |
2024 | = cons_to_long (XVECTOR (obj)->contents [i]); | |
2025 | else | |
2026 | (*((unsigned short **) data_ret)) [i] | |
2027 | = (unsigned short) cons_to_long (XVECTOR (obj)->contents [i]); | |
2028 | } | |
2029 | } | |
2030 | else | |
4d30ce50 | 2031 | signal_error (/* Qselection_error */ "Unrecognized selection data", obj); |
ede4db72 | 2032 | |
5c3a351a | 2033 | *type_ret = symbol_to_x_atom (dpyinfo, display, type); |
ede4db72 RS |
2034 | } |
2035 | ||
2036 | static Lisp_Object | |
971de7fb | 2037 | clean_local_selection_data (Lisp_Object obj) |
ede4db72 RS |
2038 | { |
2039 | if (CONSP (obj) | |
8e713be6 KR |
2040 | && INTEGERP (XCAR (obj)) |
2041 | && CONSP (XCDR (obj)) | |
2042 | && INTEGERP (XCAR (XCDR (obj))) | |
2043 | && NILP (XCDR (XCDR (obj)))) | |
2044 | obj = Fcons (XCAR (obj), XCDR (obj)); | |
ede4db72 RS |
2045 | |
2046 | if (CONSP (obj) | |
8e713be6 KR |
2047 | && INTEGERP (XCAR (obj)) |
2048 | && INTEGERP (XCDR (obj))) | |
ede4db72 | 2049 | { |
8e713be6 KR |
2050 | if (XINT (XCAR (obj)) == 0) |
2051 | return XCDR (obj); | |
2052 | if (XINT (XCAR (obj)) == -1) | |
2053 | return make_number (- XINT (XCDR (obj))); | |
ede4db72 RS |
2054 | } |
2055 | if (VECTORP (obj)) | |
2056 | { | |
2057 | int i; | |
2058 | int size = XVECTOR (obj)->size; | |
2059 | Lisp_Object copy; | |
2060 | if (size == 1) | |
2061 | return clean_local_selection_data (XVECTOR (obj)->contents [0]); | |
e607a484 | 2062 | copy = Fmake_vector (make_number (size), Qnil); |
ede4db72 RS |
2063 | for (i = 0; i < size; i++) |
2064 | XVECTOR (copy)->contents [i] | |
2065 | = clean_local_selection_data (XVECTOR (obj)->contents [i]); | |
2066 | return copy; | |
2067 | } | |
2068 | return obj; | |
2069 | } | |
2070 | \f | |
2071 | /* Called from XTread_socket to handle SelectionNotify events. | |
606140dd KH |
2072 | If it's the selection we are waiting for, stop waiting |
2073 | by setting the car of reading_selection_reply to non-nil. | |
2074 | We store t there if the reply is successful, lambda if not. */ | |
ede4db72 RS |
2075 | |
2076 | void | |
971de7fb | 2077 | x_handle_selection_notify (XSelectionEvent *event) |
ede4db72 | 2078 | { |
5d0ba25b | 2079 | if (event->requestor != reading_selection_window) |
ede4db72 RS |
2080 | return; |
2081 | if (event->selection != reading_which_selection) | |
2082 | return; | |
2083 | ||
d9c0d4a3 | 2084 | TRACE0 ("Received SelectionNotify"); |
f3fbd155 KR |
2085 | XSETCAR (reading_selection_reply, |
2086 | (event->property != 0 ? Qt : Qlambda)); | |
ede4db72 RS |
2087 | } |
2088 | ||
2089 | \f | |
a0d76c27 | 2090 | DEFUN ("x-own-selection-internal", Fx_own_selection_internal, |
8c1a1077 PJ |
2091 | Sx_own_selection_internal, 2, 2, 0, |
2092 | doc: /* Assert an X selection of the given TYPE with the given VALUE. | |
2093 | TYPE is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2094 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2095 | VALUE is typically a string, or a cons of two markers, but may be | |
2096 | anything that the functions on `selection-converter-alist' know about. */) | |
5842a27b | 2097 | (Lisp_Object selection_name, Lisp_Object selection_value) |
ede4db72 | 2098 | { |
703e0710 | 2099 | check_x (); |
b7826503 | 2100 | CHECK_SYMBOL (selection_name); |
253b2298 | 2101 | if (NILP (selection_value)) error ("SELECTION-VALUE may not be nil"); |
ede4db72 RS |
2102 | x_own_selection (selection_name, selection_value); |
2103 | return selection_value; | |
2104 | } | |
2105 | ||
2106 | ||
2107 | /* Request the selection value from the owner. If we are the owner, | |
2108 | simply return our selection value. If we are not the owner, this | |
2109 | will block until all of the data has arrived. */ | |
2110 | ||
a0d76c27 | 2111 | DEFUN ("x-get-selection-internal", Fx_get_selection_internal, |
3a42401d | 2112 | Sx_get_selection_internal, 2, 3, 0, |
8c1a1077 PJ |
2113 | doc: /* Return text selected from some X window. |
2114 | SELECTION is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2115 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
3a42401d JD |
2116 | TYPE is the type of data desired, typically `STRING'. |
2117 | TIME_STAMP is the time to use in the XConvertSelection call for foreign | |
2118 | selections. If omitted, defaults to the time for the last event. */) | |
5842a27b | 2119 | (Lisp_Object selection_symbol, Lisp_Object target_type, Lisp_Object time_stamp) |
ede4db72 RS |
2120 | { |
2121 | Lisp_Object val = Qnil; | |
2122 | struct gcpro gcpro1, gcpro2; | |
2123 | GCPRO2 (target_type, val); /* we store newly consed data into these */ | |
703e0710 | 2124 | check_x (); |
b7826503 | 2125 | CHECK_SYMBOL (selection_symbol); |
ede4db72 RS |
2126 | |
2127 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
2128 | if (CONSP (target_type) | |
8e713be6 | 2129 | && XCAR (target_type) == QMULTIPLE) |
ede4db72 | 2130 | { |
b7826503 | 2131 | CHECK_VECTOR (XCDR (target_type)); |
ede4db72 RS |
2132 | /* So we don't destructively modify this... */ |
2133 | target_type = copy_multiple_data (target_type); | |
2134 | } | |
2135 | else | |
2136 | #endif | |
b7826503 | 2137 | CHECK_SYMBOL (target_type); |
ede4db72 | 2138 | |
5109c8dd | 2139 | val = x_get_local_selection (selection_symbol, target_type, 1); |
ede4db72 RS |
2140 | |
2141 | if (NILP (val)) | |
2142 | { | |
3a42401d | 2143 | val = x_get_foreign_selection (selection_symbol, target_type, time_stamp); |
ede4db72 RS |
2144 | goto DONE; |
2145 | } | |
2146 | ||
2147 | if (CONSP (val) | |
8e713be6 | 2148 | && SYMBOLP (XCAR (val))) |
ede4db72 | 2149 | { |
8e713be6 KR |
2150 | val = XCDR (val); |
2151 | if (CONSP (val) && NILP (XCDR (val))) | |
2152 | val = XCAR (val); | |
ede4db72 RS |
2153 | } |
2154 | val = clean_local_selection_data (val); | |
2155 | DONE: | |
2156 | UNGCPRO; | |
2157 | return val; | |
2158 | } | |
2159 | ||
a0d76c27 | 2160 | DEFUN ("x-disown-selection-internal", Fx_disown_selection_internal, |
8c1a1077 PJ |
2161 | Sx_disown_selection_internal, 1, 2, 0, |
2162 | doc: /* If we own the selection SELECTION, disown it. | |
2163 | Disowning it means there is no such selection. */) | |
5842a27b | 2164 | (Lisp_Object selection, Lisp_Object time) |
ede4db72 | 2165 | { |
ede4db72 RS |
2166 | Time timestamp; |
2167 | Atom selection_atom; | |
31df61d6 AS |
2168 | union { |
2169 | struct selection_input_event sie; | |
2170 | struct input_event ie; | |
2171 | } event; | |
3834c318 | 2172 | Display *display; |
5c3a351a | 2173 | struct x_display_info *dpyinfo; |
378c33ca | 2174 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2175 | |
703e0710 | 2176 | check_x (); |
428a555e KL |
2177 | if (! FRAME_X_P (sf)) |
2178 | return Qnil; | |
2179 | ||
378c33ca GM |
2180 | display = FRAME_X_DISPLAY (sf); |
2181 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
b7826503 | 2182 | CHECK_SYMBOL (selection); |
ede4db72 | 2183 | if (NILP (time)) |
7da64e5c | 2184 | timestamp = last_event_timestamp; |
ede4db72 RS |
2185 | else |
2186 | timestamp = cons_to_long (time); | |
2187 | ||
2188 | if (NILP (assq_no_quit (selection, Vselection_alist))) | |
2189 | return Qnil; /* Don't disown the selection when we're not the owner. */ | |
2190 | ||
5c3a351a | 2191 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection); |
ede4db72 RS |
2192 | |
2193 | BLOCK_INPUT; | |
2194 | XSetSelectionOwner (display, selection_atom, None, timestamp); | |
2195 | UNBLOCK_INPUT; | |
2196 | ||
eb8c3be9 | 2197 | /* It doesn't seem to be guaranteed that a SelectionClear event will be |
ede4db72 RS |
2198 | generated for a window which owns the selection when that window sets |
2199 | the selection owner to None. The NCD server does, the MIT Sun4 server | |
2200 | doesn't. So we synthesize one; this means we might get two, but | |
2201 | that's ok, because the second one won't have any effect. */ | |
31df61d6 AS |
2202 | SELECTION_EVENT_DISPLAY (&event.sie) = display; |
2203 | SELECTION_EVENT_SELECTION (&event.sie) = selection_atom; | |
2204 | SELECTION_EVENT_TIME (&event.sie) = timestamp; | |
2205 | x_handle_selection_clear (&event.ie); | |
ede4db72 RS |
2206 | |
2207 | return Qt; | |
2208 | } | |
2209 | ||
a87ed99c RS |
2210 | /* Get rid of all the selections in buffer BUFFER. |
2211 | This is used when we kill a buffer. */ | |
2212 | ||
2213 | void | |
971de7fb | 2214 | x_disown_buffer_selections (Lisp_Object buffer) |
a87ed99c RS |
2215 | { |
2216 | Lisp_Object tail; | |
2217 | struct buffer *buf = XBUFFER (buffer); | |
2218 | ||
8e713be6 | 2219 | for (tail = Vselection_alist; CONSP (tail); tail = XCDR (tail)) |
a87ed99c RS |
2220 | { |
2221 | Lisp_Object elt, value; | |
8e713be6 KR |
2222 | elt = XCAR (tail); |
2223 | value = XCDR (elt); | |
2224 | if (CONSP (value) && MARKERP (XCAR (value)) | |
2225 | && XMARKER (XCAR (value))->buffer == buf) | |
2226 | Fx_disown_selection_internal (XCAR (elt), Qnil); | |
a87ed99c RS |
2227 | } |
2228 | } | |
ede4db72 RS |
2229 | |
2230 | DEFUN ("x-selection-owner-p", Fx_selection_owner_p, Sx_selection_owner_p, | |
8c1a1077 PJ |
2231 | 0, 1, 0, |
2232 | doc: /* Whether the current Emacs process owns the given X Selection. | |
2233 | The arg should be the name of the selection in question, typically one of | |
2234 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2235 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2236 | For convenience, the symbol nil is the same as `PRIMARY', | |
2237 | and t is the same as `SECONDARY'. */) | |
5842a27b | 2238 | (Lisp_Object selection) |
ede4db72 | 2239 | { |
703e0710 | 2240 | check_x (); |
b7826503 | 2241 | CHECK_SYMBOL (selection); |
ede4db72 RS |
2242 | if (EQ (selection, Qnil)) selection = QPRIMARY; |
2243 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
1b65481e | 2244 | |
ede4db72 RS |
2245 | if (NILP (Fassq (selection, Vselection_alist))) |
2246 | return Qnil; | |
2247 | return Qt; | |
2248 | } | |
2249 | ||
2250 | DEFUN ("x-selection-exists-p", Fx_selection_exists_p, Sx_selection_exists_p, | |
8c1a1077 PJ |
2251 | 0, 1, 0, |
2252 | doc: /* Whether there is an owner for the given X Selection. | |
2253 | The arg should be the name of the selection in question, typically one of | |
2254 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2255 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2256 | For convenience, the symbol nil is the same as `PRIMARY', | |
2257 | and t is the same as `SECONDARY'. */) | |
5842a27b | 2258 | (Lisp_Object selection) |
ede4db72 RS |
2259 | { |
2260 | Window owner; | |
356ba514 | 2261 | Atom atom; |
3834c318 | 2262 | Display *dpy; |
378c33ca | 2263 | struct frame *sf = SELECTED_FRAME (); |
3834c318 | 2264 | |
b8c70430 | 2265 | /* It should be safe to call this before we have an X frame. */ |
378c33ca | 2266 | if (! FRAME_X_P (sf)) |
b8c70430 RS |
2267 | return Qnil; |
2268 | ||
378c33ca | 2269 | dpy = FRAME_X_DISPLAY (sf); |
b7826503 | 2270 | CHECK_SYMBOL (selection); |
ede4db72 RS |
2271 | if (!NILP (Fx_selection_owner_p (selection))) |
2272 | return Qt; | |
356ba514 RS |
2273 | if (EQ (selection, Qnil)) selection = QPRIMARY; |
2274 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
378c33ca | 2275 | atom = symbol_to_x_atom (FRAME_X_DISPLAY_INFO (sf), dpy, selection); |
356ba514 RS |
2276 | if (atom == 0) |
2277 | return Qnil; | |
ede4db72 | 2278 | BLOCK_INPUT; |
356ba514 | 2279 | owner = XGetSelectionOwner (dpy, atom); |
ede4db72 RS |
2280 | UNBLOCK_INPUT; |
2281 | return (owner ? Qt : Qnil); | |
2282 | } | |
2283 | ||
2284 | \f | |
2285 | #ifdef CUT_BUFFER_SUPPORT | |
2286 | ||
ede4db72 RS |
2287 | /* Ensure that all 8 cut buffers exist. ICCCM says we gotta... */ |
2288 | static void | |
971de7fb | 2289 | initialize_cut_buffers (Display *display, Window window) |
ede4db72 RS |
2290 | { |
2291 | unsigned char *data = (unsigned char *) ""; | |
2292 | BLOCK_INPUT; | |
2293 | #define FROB(atom) XChangeProperty (display, window, atom, XA_STRING, 8, \ | |
2294 | PropModeAppend, data, 0) | |
2295 | FROB (XA_CUT_BUFFER0); | |
2296 | FROB (XA_CUT_BUFFER1); | |
2297 | FROB (XA_CUT_BUFFER2); | |
2298 | FROB (XA_CUT_BUFFER3); | |
2299 | FROB (XA_CUT_BUFFER4); | |
2300 | FROB (XA_CUT_BUFFER5); | |
2301 | FROB (XA_CUT_BUFFER6); | |
2302 | FROB (XA_CUT_BUFFER7); | |
2303 | #undef FROB | |
2304 | UNBLOCK_INPUT; | |
ede4db72 RS |
2305 | } |
2306 | ||
2307 | ||
b7826503 | 2308 | #define CHECK_CUT_BUFFER(symbol) \ |
4d30ce50 | 2309 | do { CHECK_SYMBOL ((symbol)); \ |
ede4db72 RS |
2310 | if (!EQ((symbol), QCUT_BUFFER0) && !EQ((symbol), QCUT_BUFFER1) \ |
2311 | && !EQ((symbol), QCUT_BUFFER2) && !EQ((symbol), QCUT_BUFFER3) \ | |
2312 | && !EQ((symbol), QCUT_BUFFER4) && !EQ((symbol), QCUT_BUFFER5) \ | |
2313 | && !EQ((symbol), QCUT_BUFFER6) && !EQ((symbol), QCUT_BUFFER7)) \ | |
4d30ce50 KS |
2314 | signal_error ("Doesn't name a cut buffer", (symbol)); \ |
2315 | } while (0) | |
ede4db72 | 2316 | |
a87ed99c | 2317 | DEFUN ("x-get-cut-buffer-internal", Fx_get_cut_buffer_internal, |
8c1a1077 PJ |
2318 | Sx_get_cut_buffer_internal, 1, 1, 0, |
2319 | doc: /* Returns the value of the named cut buffer (typically CUT_BUFFER0). */) | |
5842a27b | 2320 | (Lisp_Object buffer) |
ede4db72 | 2321 | { |
3834c318 | 2322 | Window window; |
ede4db72 | 2323 | Atom buffer_atom; |
ede75242 | 2324 | unsigned char *data = NULL; |
ede4db72 RS |
2325 | int bytes; |
2326 | Atom type; | |
2327 | int format; | |
2328 | unsigned long size; | |
2329 | Lisp_Object ret; | |
3834c318 | 2330 | Display *display; |
5c3a351a | 2331 | struct x_display_info *dpyinfo; |
378c33ca | 2332 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2333 | |
703e0710 | 2334 | check_x (); |
428a555e KL |
2335 | |
2336 | if (! FRAME_X_P (sf)) | |
2337 | return Qnil; | |
2338 | ||
378c33ca GM |
2339 | display = FRAME_X_DISPLAY (sf); |
2340 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
3834c318 | 2341 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
b7826503 | 2342 | CHECK_CUT_BUFFER (buffer); |
5c3a351a | 2343 | buffer_atom = symbol_to_x_atom (dpyinfo, display, buffer); |
ede4db72 RS |
2344 | |
2345 | x_get_window_property (display, window, buffer_atom, &data, &bytes, | |
2346 | &type, &format, &size, 0); | |
722b3ac9 | 2347 | |
ede75242 | 2348 | if (!data || !format) |
722b3ac9 | 2349 | { |
5f445726 | 2350 | xfree (data); |
722b3ac9 CY |
2351 | return Qnil; |
2352 | } | |
2353 | ||
ede4db72 | 2354 | if (format != 8 || type != XA_STRING) |
4d30ce50 KS |
2355 | signal_error ("Cut buffer doesn't contain 8-bit data", |
2356 | list2 (x_atom_to_symbol (display, type), | |
2357 | make_number (format))); | |
ede4db72 | 2358 | |
3f6b532c | 2359 | ret = (bytes ? make_unibyte_string ((char *) data, bytes) : Qnil); |
4feb31b2 | 2360 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 2361 | calls xmalloc itself. */ |
4feb31b2 | 2362 | xfree (data); |
ede4db72 RS |
2363 | return ret; |
2364 | } | |
2365 | ||
2366 | ||
a87ed99c | 2367 | DEFUN ("x-store-cut-buffer-internal", Fx_store_cut_buffer_internal, |
8c1a1077 PJ |
2368 | Sx_store_cut_buffer_internal, 2, 2, 0, |
2369 | doc: /* Sets the value of the named cut buffer (typically CUT_BUFFER0). */) | |
5842a27b | 2370 | (Lisp_Object buffer, Lisp_Object string) |
ede4db72 | 2371 | { |
3834c318 | 2372 | Window window; |
ede4db72 RS |
2373 | Atom buffer_atom; |
2374 | unsigned char *data; | |
2375 | int bytes; | |
2376 | int bytes_remaining; | |
3834c318 RS |
2377 | int max_bytes; |
2378 | Display *display; | |
378c33ca | 2379 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2380 | |
703e0710 | 2381 | check_x (); |
428a555e KL |
2382 | |
2383 | if (! FRAME_X_P (sf)) | |
2384 | return Qnil; | |
2385 | ||
378c33ca | 2386 | display = FRAME_X_DISPLAY (sf); |
3834c318 RS |
2387 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
2388 | ||
2389 | max_bytes = SELECTION_QUANTUM (display); | |
2390 | if (max_bytes > MAX_SELECTION_QUANTUM) | |
2391 | max_bytes = MAX_SELECTION_QUANTUM; | |
2392 | ||
b7826503 PJ |
2393 | CHECK_CUT_BUFFER (buffer); |
2394 | CHECK_STRING (string); | |
378c33ca | 2395 | buffer_atom = symbol_to_x_atom (FRAME_X_DISPLAY_INFO (sf), |
5c3a351a | 2396 | display, buffer); |
d5db4077 KR |
2397 | data = (unsigned char *) SDATA (string); |
2398 | bytes = SBYTES (string); | |
ede4db72 RS |
2399 | bytes_remaining = bytes; |
2400 | ||
378c33ca | 2401 | if (! FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized) |
04649dbc KH |
2402 | { |
2403 | initialize_cut_buffers (display, window); | |
378c33ca | 2404 | FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized = 1; |
04649dbc | 2405 | } |
ede4db72 RS |
2406 | |
2407 | BLOCK_INPUT; | |
10608c8c RS |
2408 | |
2409 | /* Don't mess up with an empty value. */ | |
2410 | if (!bytes_remaining) | |
2411 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
2412 | PropModeReplace, data, 0); | |
2413 | ||
ede4db72 RS |
2414 | while (bytes_remaining) |
2415 | { | |
2416 | int chunk = (bytes_remaining < max_bytes | |
2417 | ? bytes_remaining : max_bytes); | |
2418 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
2419 | (bytes_remaining == bytes | |
2420 | ? PropModeReplace | |
2421 | : PropModeAppend), | |
2422 | data, chunk); | |
2423 | data += chunk; | |
2424 | bytes_remaining -= chunk; | |
2425 | } | |
2426 | UNBLOCK_INPUT; | |
2427 | return string; | |
2428 | } | |
2429 | ||
2430 | ||
a87ed99c | 2431 | DEFUN ("x-rotate-cut-buffers-internal", Fx_rotate_cut_buffers_internal, |
8c1a1077 | 2432 | Sx_rotate_cut_buffers_internal, 1, 1, 0, |
d41e3a6c CY |
2433 | doc: /* Rotate the values of the cut buffers by N steps. |
2434 | Positive N means shift the values forward, negative means backward. */) | |
5842a27b | 2435 | (Lisp_Object n) |
ede4db72 | 2436 | { |
3834c318 RS |
2437 | Window window; |
2438 | Atom props[8]; | |
2439 | Display *display; | |
378c33ca | 2440 | struct frame *sf = SELECTED_FRAME (); |
428a555e | 2441 | |
703e0710 | 2442 | check_x (); |
428a555e KL |
2443 | |
2444 | if (! FRAME_X_P (sf)) | |
2445 | return Qnil; | |
2446 | ||
378c33ca | 2447 | display = FRAME_X_DISPLAY (sf); |
3834c318 | 2448 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
b7826503 | 2449 | CHECK_NUMBER (n); |
3834c318 RS |
2450 | if (XINT (n) == 0) |
2451 | return n; | |
378c33ca | 2452 | if (! FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized) |
04649dbc KH |
2453 | { |
2454 | initialize_cut_buffers (display, window); | |
378c33ca | 2455 | FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized = 1; |
04649dbc | 2456 | } |
3834c318 | 2457 | |
ede4db72 RS |
2458 | props[0] = XA_CUT_BUFFER0; |
2459 | props[1] = XA_CUT_BUFFER1; | |
2460 | props[2] = XA_CUT_BUFFER2; | |
2461 | props[3] = XA_CUT_BUFFER3; | |
2462 | props[4] = XA_CUT_BUFFER4; | |
2463 | props[5] = XA_CUT_BUFFER5; | |
2464 | props[6] = XA_CUT_BUFFER6; | |
2465 | props[7] = XA_CUT_BUFFER7; | |
2466 | BLOCK_INPUT; | |
2467 | XRotateWindowProperties (display, window, props, 8, XINT (n)); | |
2468 | UNBLOCK_INPUT; | |
2469 | return n; | |
2470 | } | |
2471 | ||
2472 | #endif | |
2473 | \f | |
1fb3821b JD |
2474 | /*********************************************************************** |
2475 | Drag and drop support | |
2476 | ***********************************************************************/ | |
2477 | /* Check that lisp values are of correct type for x_fill_property_data. | |
2478 | That is, number, string or a cons with two numbers (low and high 16 | |
2479 | bit parts of a 32 bit number). */ | |
2480 | ||
2481 | int | |
971de7fb | 2482 | x_check_property_data (Lisp_Object data) |
1fb3821b JD |
2483 | { |
2484 | Lisp_Object iter; | |
2485 | int size = 0; | |
2486 | ||
2487 | for (iter = data; CONSP (iter) && size != -1; iter = XCDR (iter), ++size) | |
2488 | { | |
2489 | Lisp_Object o = XCAR (iter); | |
2490 | ||
2491 | if (! NUMBERP (o) && ! STRINGP (o) && ! CONSP (o)) | |
2492 | size = -1; | |
2493 | else if (CONSP (o) && | |
2494 | (! NUMBERP (XCAR (o)) || ! NUMBERP (XCDR (o)))) | |
2495 | size = -1; | |
2496 | } | |
2497 | ||
2498 | return size; | |
2499 | } | |
2500 | ||
2501 | /* Convert lisp values to a C array. Values may be a number, a string | |
2502 | which is taken as an X atom name and converted to the atom value, or | |
2503 | a cons containing the two 16 bit parts of a 32 bit number. | |
2504 | ||
2505 | DPY is the display use to look up X atoms. | |
2506 | DATA is a Lisp list of values to be converted. | |
2507 | RET is the C array that contains the converted values. It is assumed | |
ff59904a | 2508 | it is big enough to hold all values. |
e22cf39c JD |
2509 | FORMAT is 8, 16 or 32 and denotes char/short/long for each C value to |
2510 | be stored in RET. Note that long is used for 32 even if long is more | |
2511 | than 32 bits (see man pages for XChangeProperty, XGetWindowProperty and | |
2512 | XClientMessageEvent). */ | |
1fb3821b JD |
2513 | |
2514 | void | |
971de7fb | 2515 | x_fill_property_data (Display *dpy, Lisp_Object data, void *ret, int format) |
1fb3821b | 2516 | { |
e22cf39c JD |
2517 | long val; |
2518 | long *d32 = (long *) ret; | |
2519 | short *d16 = (short *) ret; | |
2520 | char *d08 = (char *) ret; | |
1fb3821b JD |
2521 | Lisp_Object iter; |
2522 | ||
2523 | for (iter = data; CONSP (iter); iter = XCDR (iter)) | |
2524 | { | |
2525 | Lisp_Object o = XCAR (iter); | |
2526 | ||
2527 | if (INTEGERP (o)) | |
e22cf39c | 2528 | val = (long) XFASTINT (o); |
1fb3821b | 2529 | else if (FLOATP (o)) |
e22cf39c | 2530 | val = (long) XFLOAT_DATA (o); |
1fb3821b | 2531 | else if (CONSP (o)) |
e22cf39c | 2532 | val = (long) cons_to_long (o); |
1fb3821b JD |
2533 | else if (STRINGP (o)) |
2534 | { | |
2535 | BLOCK_INPUT; | |
e22cf39c | 2536 | val = (long) XInternAtom (dpy, (char *) SDATA (o), False); |
1fb3821b JD |
2537 | UNBLOCK_INPUT; |
2538 | } | |
2539 | else | |
2540 | error ("Wrong type, must be string, number or cons"); | |
2541 | ||
2542 | if (format == 8) | |
e22cf39c | 2543 | *d08++ = (char) val; |
1fb3821b | 2544 | else if (format == 16) |
e22cf39c | 2545 | *d16++ = (short) val; |
1fb3821b JD |
2546 | else |
2547 | *d32++ = val; | |
2548 | } | |
2549 | } | |
2550 | ||
2551 | /* Convert an array of C values to a Lisp list. | |
2552 | F is the frame to be used to look up X atoms if the TYPE is XA_ATOM. | |
2553 | DATA is a C array of values to be converted. | |
2554 | TYPE is the type of the data. Only XA_ATOM is special, it converts | |
2555 | each number in DATA to its corresponfing X atom as a symbol. | |
2556 | FORMAT is 8, 16 or 32 and gives the size in bits for each C value to | |
2557 | be stored in RET. | |
2558 | SIZE is the number of elements in DATA. | |
2559 | ||
b8d6f4af JD |
2560 | Important: When format is 32, data should contain an array of int, |
2561 | not an array of long as the X library returns. This makes a difference | |
2562 | when sizeof(long) != sizeof(int). | |
2563 | ||
1fb3821b JD |
2564 | Also see comment for selection_data_to_lisp_data above. */ |
2565 | ||
2566 | Lisp_Object | |
971de7fb | 2567 | x_property_data_to_lisp (struct frame *f, unsigned char *data, Atom type, int format, long unsigned int size) |
1fb3821b JD |
2568 | { |
2569 | return selection_data_to_lisp_data (FRAME_X_DISPLAY (f), | |
2570 | data, size*format/8, type, format); | |
2571 | } | |
2572 | ||
31f16913 | 2573 | /* Get the mouse position in frame relative coordinates. */ |
1fb3821b JD |
2574 | |
2575 | static void | |
971de7fb | 2576 | mouse_position_for_drop (FRAME_PTR f, int *x, int *y) |
1fb3821b JD |
2577 | { |
2578 | Window root, dummy_window; | |
2579 | int dummy; | |
2580 | ||
2581 | BLOCK_INPUT; | |
2582 | ||
2583 | XQueryPointer (FRAME_X_DISPLAY (f), | |
2584 | DefaultRootWindow (FRAME_X_DISPLAY (f)), | |
2585 | ||
2586 | /* The root window which contains the pointer. */ | |
2587 | &root, | |
2588 | ||
2589 | /* Window pointer is on, not used */ | |
2590 | &dummy_window, | |
2591 | ||
2592 | /* The position on that root window. */ | |
2593 | x, y, | |
2594 | ||
2595 | /* x/y in dummy_window coordinates, not used. */ | |
2596 | &dummy, &dummy, | |
2597 | ||
2598 | /* Modifier keys and pointer buttons, about which | |
2599 | we don't care. */ | |
2600 | (unsigned int *) &dummy); | |
2601 | ||
2602 | ||
2603 | /* Absolute to relative. */ | |
2604 | *x -= f->left_pos + FRAME_OUTER_TO_INNER_DIFF_X (f); | |
2605 | *y -= f->top_pos + FRAME_OUTER_TO_INNER_DIFF_Y (f); | |
2606 | ||
2607 | UNBLOCK_INPUT; | |
2608 | } | |
2609 | ||
2610 | DEFUN ("x-get-atom-name", Fx_get_atom_name, | |
2611 | Sx_get_atom_name, 1, 2, 0, | |
2612 | doc: /* Return the X atom name for VALUE as a string. | |
2613 | VALUE may be a number or a cons where the car is the upper 16 bits and | |
2614 | the cdr is the lower 16 bits of a 32 bit value. | |
2615 | Use the display for FRAME or the current frame if FRAME is not given or nil. | |
2616 | ||
2617 | If the value is 0 or the atom is not known, return the empty string. */) | |
5842a27b | 2618 | (Lisp_Object value, Lisp_Object frame) |
1fb3821b JD |
2619 | { |
2620 | struct frame *f = check_x_frame (frame); | |
2621 | char *name = 0; | |
2622 | Lisp_Object ret = Qnil; | |
1fb3821b JD |
2623 | Display *dpy = FRAME_X_DISPLAY (f); |
2624 | Atom atom; | |
c525d842 | 2625 | int had_errors; |
1fb3821b JD |
2626 | |
2627 | if (INTEGERP (value)) | |
2628 | atom = (Atom) XUINT (value); | |
2629 | else if (FLOATP (value)) | |
ff59904a | 2630 | atom = (Atom) XFLOAT_DATA (value); |
1fb3821b JD |
2631 | else if (CONSP (value)) |
2632 | atom = (Atom) cons_to_long (value); | |
2633 | else | |
2634 | error ("Wrong type, value must be number or cons"); | |
2635 | ||
2636 | BLOCK_INPUT; | |
9ba8e10d | 2637 | x_catch_errors (dpy); |
1fb3821b | 2638 | name = atom ? XGetAtomName (dpy, atom) : ""; |
c525d842 CY |
2639 | had_errors = x_had_errors_p (dpy); |
2640 | x_uncatch_errors (); | |
1fb3821b | 2641 | |
c525d842 | 2642 | if (!had_errors) |
1fb3821b JD |
2643 | ret = make_string (name, strlen (name)); |
2644 | ||
1fb3821b | 2645 | if (atom && name) XFree (name); |
8b3ad112 | 2646 | if (NILP (ret)) ret = empty_unibyte_string; |
1fb3821b JD |
2647 | |
2648 | UNBLOCK_INPUT; | |
2649 | ||
2650 | return ret; | |
2651 | } | |
2652 | ||
9fc68699 JD |
2653 | DEFUN ("x-register-dnd-atom", Fx_register_dnd_atom, |
2654 | Sx_register_dnd_atom, 1, 2, 0, | |
2655 | doc: /* Request that dnd events are made for ClientMessages with ATOM. | |
2656 | ATOM can be a symbol or a string. The ATOM is interned on the display that | |
2657 | FRAME is on. If FRAME is nil, the selected frame is used. */) | |
5842a27b | 2658 | (Lisp_Object atom, Lisp_Object frame) |
9fc68699 JD |
2659 | { |
2660 | Atom x_atom; | |
2661 | struct frame *f = check_x_frame (frame); | |
2662 | size_t i; | |
2663 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); | |
2664 | ||
2665 | ||
2666 | if (SYMBOLP (atom)) | |
2667 | x_atom = symbol_to_x_atom (dpyinfo, FRAME_X_DISPLAY (f), atom); | |
2668 | else if (STRINGP (atom)) | |
2669 | { | |
2670 | BLOCK_INPUT; | |
2671 | x_atom = XInternAtom (FRAME_X_DISPLAY (f), (char *) SDATA (atom), False); | |
2672 | UNBLOCK_INPUT; | |
2673 | } | |
2674 | else | |
2675 | error ("ATOM must be a symbol or a string"); | |
2676 | ||
db9cd97a | 2677 | for (i = 0; i < dpyinfo->x_dnd_atoms_length; ++i) |
9fc68699 JD |
2678 | if (dpyinfo->x_dnd_atoms[i] == x_atom) |
2679 | return Qnil; | |
2680 | ||
db9cd97a | 2681 | if (dpyinfo->x_dnd_atoms_length == dpyinfo->x_dnd_atoms_size) |
9fc68699 JD |
2682 | { |
2683 | dpyinfo->x_dnd_atoms_size *= 2; | |
2684 | dpyinfo->x_dnd_atoms = xrealloc (dpyinfo->x_dnd_atoms, | |
2685 | sizeof (*dpyinfo->x_dnd_atoms) | |
2686 | * dpyinfo->x_dnd_atoms_size); | |
2687 | } | |
2688 | ||
2689 | dpyinfo->x_dnd_atoms[dpyinfo->x_dnd_atoms_length++] = x_atom; | |
2690 | return Qnil; | |
2691 | } | |
2692 | ||
2693 | /* Convert an XClientMessageEvent to a Lisp event of type DRAG_N_DROP_EVENT. */ | |
1fb3821b JD |
2694 | |
2695 | int | |
971de7fb | 2696 | x_handle_dnd_message (struct frame *f, XClientMessageEvent *event, struct x_display_info *dpyinfo, struct input_event *bufp) |
1fb3821b JD |
2697 | { |
2698 | Lisp_Object vec; | |
2699 | Lisp_Object frame; | |
e22cf39c JD |
2700 | /* format 32 => size 5, format 16 => size 10, format 8 => size 20 */ |
2701 | unsigned long size = 160/event->format; | |
1fb3821b | 2702 | int x, y; |
31f16913 JD |
2703 | unsigned char *data = (unsigned char *) event->data.b; |
2704 | int idata[5]; | |
9fc68699 JD |
2705 | size_t i; |
2706 | ||
db9cd97a | 2707 | for (i = 0; i < dpyinfo->x_dnd_atoms_length; ++i) |
9fc68699 JD |
2708 | if (dpyinfo->x_dnd_atoms[i] == event->message_type) break; |
2709 | ||
2710 | if (i == dpyinfo->x_dnd_atoms_length) return 0; | |
1fb3821b JD |
2711 | |
2712 | XSETFRAME (frame, f); | |
2713 | ||
31f16913 JD |
2714 | /* On a 64 bit machine, the event->data.l array members are 64 bits (long), |
2715 | but the x_property_data_to_lisp (or rather selection_data_to_lisp_data) | |
2716 | function expects them to be of size int (i.e. 32). So to be able to | |
2717 | use that function, put the data in the form it expects if format is 32. */ | |
2718 | ||
2719 | if (event->format == 32 && event->format < BITS_PER_LONG) | |
2720 | { | |
2721 | int i; | |
2722 | for (i = 0; i < 5; ++i) /* There are only 5 longs in a ClientMessage. */ | |
2723 | idata[i] = (int) event->data.l[i]; | |
2724 | data = (unsigned char *) idata; | |
2725 | } | |
2726 | ||
d2f14999 | 2727 | vec = Fmake_vector (make_number (4), Qnil); |
3ae565b3 SM |
2728 | ASET (vec, 0, SYMBOL_NAME (x_atom_to_symbol (FRAME_X_DISPLAY (f), |
2729 | event->message_type))); | |
2730 | ASET (vec, 1, frame); | |
2731 | ASET (vec, 2, make_number (event->format)); | |
2732 | ASET (vec, 3, x_property_data_to_lisp (f, | |
2733 | data, | |
2734 | event->message_type, | |
2735 | event->format, | |
2736 | size)); | |
1fb3821b JD |
2737 | |
2738 | mouse_position_for_drop (f, &x, &y); | |
2739 | bufp->kind = DRAG_N_DROP_EVENT; | |
862c94ca | 2740 | bufp->frame_or_window = frame; |
1fb3821b JD |
2741 | bufp->timestamp = CurrentTime; |
2742 | bufp->x = make_number (x); | |
2743 | bufp->y = make_number (y); | |
862c94ca | 2744 | bufp->arg = vec; |
1fb3821b JD |
2745 | bufp->modifiers = 0; |
2746 | ||
2747 | return 1; | |
2748 | } | |
2749 | ||
2750 | DEFUN ("x-send-client-message", Fx_send_client_event, | |
2751 | Sx_send_client_message, 6, 6, 0, | |
2752 | doc: /* Send a client message of MESSAGE-TYPE to window DEST on DISPLAY. | |
2753 | ||
2754 | For DISPLAY, specify either a frame or a display name (a string). | |
2755 | If DISPLAY is nil, that stands for the selected frame's display. | |
2756 | DEST may be a number, in which case it is a Window id. The value 0 may | |
2757 | be used to send to the root window of the DISPLAY. | |
2758 | If DEST is a cons, it is converted to a 32 bit number | |
2759 | with the high 16 bits from the car and the lower 16 bit from the cdr. That | |
2760 | number is then used as a window id. | |
2761 | If DEST is a frame the event is sent to the outer window of that frame. | |
69785ad0 | 2762 | A value of nil means the currently selected frame. |
1fb3821b JD |
2763 | If DEST is the string "PointerWindow" the event is sent to the window that |
2764 | contains the pointer. If DEST is the string "InputFocus" the event is | |
2765 | sent to the window that has the input focus. | |
2766 | FROM is the frame sending the event. Use nil for currently selected frame. | |
2767 | MESSAGE-TYPE is the name of an Atom as a string. | |
2768 | FORMAT must be one of 8, 16 or 32 and determines the size of the values in | |
2769 | bits. VALUES is a list of numbers, cons and/or strings containing the values | |
2770 | to send. If a value is a string, it is converted to an Atom and the value of | |
2771 | the Atom is sent. If a value is a cons, it is converted to a 32 bit number | |
2772 | with the high 16 bits from the car and the lower 16 bit from the cdr. | |
2773 | If more values than fits into the event is given, the excessive values | |
2774 | are ignored. */) | |
5842a27b | 2775 | (Lisp_Object display, Lisp_Object dest, Lisp_Object from, Lisp_Object message_type, Lisp_Object format, Lisp_Object values) |
1fb3821b JD |
2776 | { |
2777 | struct x_display_info *dpyinfo = check_x_display_info (display); | |
2778 | Window wdest; | |
2779 | XEvent event; | |
2780 | Lisp_Object cons; | |
2781 | int size; | |
2782 | struct frame *f = check_x_frame (from); | |
1fb3821b JD |
2783 | int to_root; |
2784 | ||
2785 | CHECK_STRING (message_type); | |
2786 | CHECK_NUMBER (format); | |
2787 | CHECK_CONS (values); | |
2788 | ||
2789 | if (x_check_property_data (values) == -1) | |
2790 | error ("Bad data in VALUES, must be number, cons or string"); | |
2791 | ||
2792 | event.xclient.type = ClientMessage; | |
2793 | event.xclient.format = XFASTINT (format); | |
2794 | ||
2795 | if (event.xclient.format != 8 && event.xclient.format != 16 | |
2796 | && event.xclient.format != 32) | |
2797 | error ("FORMAT must be one of 8, 16 or 32"); | |
a0ecb2ac | 2798 | |
1fb3821b JD |
2799 | if (FRAMEP (dest) || NILP (dest)) |
2800 | { | |
2801 | struct frame *fdest = check_x_frame (dest); | |
2802 | wdest = FRAME_OUTER_WINDOW (fdest); | |
2803 | } | |
2804 | else if (STRINGP (dest)) | |
2805 | { | |
2806 | if (strcmp (SDATA (dest), "PointerWindow") == 0) | |
2807 | wdest = PointerWindow; | |
2808 | else if (strcmp (SDATA (dest), "InputFocus") == 0) | |
2809 | wdest = InputFocus; | |
2810 | else | |
2811 | error ("DEST as a string must be one of PointerWindow or InputFocus"); | |
2812 | } | |
2813 | else if (INTEGERP (dest)) | |
2814 | wdest = (Window) XFASTINT (dest); | |
2815 | else if (FLOATP (dest)) | |
ff59904a | 2816 | wdest = (Window) XFLOAT_DATA (dest); |
1fb3821b JD |
2817 | else if (CONSP (dest)) |
2818 | { | |
2819 | if (! NUMBERP (XCAR (dest)) || ! NUMBERP (XCDR (dest))) | |
2820 | error ("Both car and cdr for DEST must be numbers"); | |
2821 | else | |
2822 | wdest = (Window) cons_to_long (dest); | |
2823 | } | |
2824 | else | |
2825 | error ("DEST must be a frame, nil, string, number or cons"); | |
2826 | ||
2827 | if (wdest == 0) wdest = dpyinfo->root_window; | |
2828 | to_root = wdest == dpyinfo->root_window; | |
2829 | ||
2830 | for (cons = values, size = 0; CONSP (cons); cons = XCDR (cons), ++size) | |
2831 | ; | |
2832 | ||
2833 | BLOCK_INPUT; | |
2834 | ||
2835 | event.xclient.message_type | |
2836 | = XInternAtom (dpyinfo->display, SDATA (message_type), False); | |
2837 | event.xclient.display = dpyinfo->display; | |
2838 | ||
2839 | /* Some clients (metacity for example) expects sending window to be here | |
2840 | when sending to the root window. */ | |
2841 | event.xclient.window = to_root ? FRAME_OUTER_WINDOW (f) : wdest; | |
2842 | ||
6e816df5 | 2843 | |
1fb3821b JD |
2844 | memset (event.xclient.data.b, 0, sizeof (event.xclient.data.b)); |
2845 | x_fill_property_data (dpyinfo->display, values, event.xclient.data.b, | |
2846 | event.xclient.format); | |
2847 | ||
2848 | /* If event mask is 0 the event is sent to the client that created | |
2849 | the destination window. But if we are sending to the root window, | |
2850 | there is no such client. Then we set the event mask to 0xffff. The | |
2851 | event then goes to clients selecting for events on the root window. */ | |
9ba8e10d | 2852 | x_catch_errors (dpyinfo->display); |
1fb3821b JD |
2853 | { |
2854 | int propagate = to_root ? False : True; | |
2855 | unsigned mask = to_root ? 0xffff : 0; | |
2856 | XSendEvent (dpyinfo->display, wdest, propagate, mask, &event); | |
2857 | XFlush (dpyinfo->display); | |
2858 | } | |
4545fa20 | 2859 | x_uncatch_errors (); |
1fb3821b JD |
2860 | UNBLOCK_INPUT; |
2861 | ||
2862 | return Qnil; | |
2863 | } | |
2864 | ||
2865 | \f | |
ede4db72 | 2866 | void |
971de7fb | 2867 | syms_of_xselect (void) |
ede4db72 | 2868 | { |
ede4db72 RS |
2869 | defsubr (&Sx_get_selection_internal); |
2870 | defsubr (&Sx_own_selection_internal); | |
2871 | defsubr (&Sx_disown_selection_internal); | |
2872 | defsubr (&Sx_selection_owner_p); | |
2873 | defsubr (&Sx_selection_exists_p); | |
2874 | ||
2875 | #ifdef CUT_BUFFER_SUPPORT | |
a87ed99c RS |
2876 | defsubr (&Sx_get_cut_buffer_internal); |
2877 | defsubr (&Sx_store_cut_buffer_internal); | |
2878 | defsubr (&Sx_rotate_cut_buffers_internal); | |
ede4db72 RS |
2879 | #endif |
2880 | ||
1fb3821b JD |
2881 | defsubr (&Sx_get_atom_name); |
2882 | defsubr (&Sx_send_client_message); | |
9fc68699 | 2883 | defsubr (&Sx_register_dnd_atom); |
1fb3821b | 2884 | |
ede4db72 RS |
2885 | reading_selection_reply = Fcons (Qnil, Qnil); |
2886 | staticpro (&reading_selection_reply); | |
2887 | reading_selection_window = 0; | |
2888 | reading_which_selection = 0; | |
2889 | ||
2890 | property_change_wait_list = 0; | |
2f65feb6 | 2891 | prop_location_identifier = 0; |
ede4db72 RS |
2892 | property_change_reply = Fcons (Qnil, Qnil); |
2893 | staticpro (&property_change_reply); | |
2894 | ||
2895 | Vselection_alist = Qnil; | |
2896 | staticpro (&Vselection_alist); | |
2897 | ||
2898 | DEFVAR_LISP ("selection-converter-alist", &Vselection_converter_alist, | |
8c1a1077 PJ |
2899 | doc: /* An alist associating X Windows selection-types with functions. |
2900 | These functions are called to convert the selection, with three args: | |
2901 | the name of the selection (typically `PRIMARY', `SECONDARY', or `CLIPBOARD'); | |
2902 | a desired type to which the selection should be converted; | |
2903 | and the local selection value (whatever was given to `x-own-selection'). | |
2904 | ||
2905 | The function should return the value to send to the X server | |
2906 | \(typically a string). A return value of nil | |
2907 | means that the conversion could not be done. | |
2908 | A return value which is the symbol `NULL' | |
2909 | means that a side-effect was executed, | |
2910 | and there is no meaningful selection value. */); | |
ede4db72 RS |
2911 | Vselection_converter_alist = Qnil; |
2912 | ||
c917a8de | 2913 | DEFVAR_LISP ("x-lost-selection-functions", &Vx_lost_selection_functions, |
8c1a1077 PJ |
2914 | doc: /* A list of functions to be called when Emacs loses an X selection. |
2915 | \(This happens when some other X client makes its own selection | |
2916 | or when a Lisp program explicitly clears the selection.) | |
2917 | The functions are called with one argument, the selection type | |
2918 | \(a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'). */); | |
c917a8de | 2919 | Vx_lost_selection_functions = Qnil; |
ede4db72 | 2920 | |
c917a8de | 2921 | DEFVAR_LISP ("x-sent-selection-functions", &Vx_sent_selection_functions, |
8c1a1077 PJ |
2922 | doc: /* A list of functions to be called when Emacs answers a selection request. |
2923 | The functions are called with four arguments: | |
2924 | - the selection name (typically `PRIMARY', `SECONDARY', or `CLIPBOARD'); | |
2925 | - the selection-type which Emacs was asked to convert the | |
2926 | selection into before sending (for example, `STRING' or `LENGTH'); | |
2927 | - a flag indicating success or failure for responding to the request. | |
2928 | We might have failed (and declined the request) for any number of reasons, | |
2929 | including being asked for a selection that we no longer own, or being asked | |
2930 | to convert into a type that we don't know about or that is inappropriate. | |
2931 | This hook doesn't let you change the behavior of Emacs's selection replies, | |
2932 | it merely informs you that they have happened. */); | |
c917a8de | 2933 | Vx_sent_selection_functions = Qnil; |
ede4db72 RS |
2934 | |
2935 | DEFVAR_INT ("x-selection-timeout", &x_selection_timeout, | |
8c1a1077 PJ |
2936 | doc: /* Number of milliseconds to wait for a selection reply. |
2937 | If the selection owner doesn't reply in this time, we give up. | |
2938 | A value of 0 means wait as long as necessary. This is initialized from the | |
2939 | \"*selectionTimeout\" resource. */); | |
ede4db72 RS |
2940 | x_selection_timeout = 0; |
2941 | ||
d67b4f80 DN |
2942 | QPRIMARY = intern_c_string ("PRIMARY"); staticpro (&QPRIMARY); |
2943 | QSECONDARY = intern_c_string ("SECONDARY"); staticpro (&QSECONDARY); | |
2944 | QSTRING = intern_c_string ("STRING"); staticpro (&QSTRING); | |
2945 | QINTEGER = intern_c_string ("INTEGER"); staticpro (&QINTEGER); | |
2946 | QCLIPBOARD = intern_c_string ("CLIPBOARD"); staticpro (&QCLIPBOARD); | |
2947 | QTIMESTAMP = intern_c_string ("TIMESTAMP"); staticpro (&QTIMESTAMP); | |
2948 | QTEXT = intern_c_string ("TEXT"); staticpro (&QTEXT); | |
2949 | QCOMPOUND_TEXT = intern_c_string ("COMPOUND_TEXT"); staticpro (&QCOMPOUND_TEXT); | |
2950 | QUTF8_STRING = intern_c_string ("UTF8_STRING"); staticpro (&QUTF8_STRING); | |
2951 | QDELETE = intern_c_string ("DELETE"); staticpro (&QDELETE); | |
2952 | QMULTIPLE = intern_c_string ("MULTIPLE"); staticpro (&QMULTIPLE); | |
2953 | QINCR = intern_c_string ("INCR"); staticpro (&QINCR); | |
2954 | QEMACS_TMP = intern_c_string ("_EMACS_TMP_"); staticpro (&QEMACS_TMP); | |
2955 | QTARGETS = intern_c_string ("TARGETS"); staticpro (&QTARGETS); | |
2956 | QATOM = intern_c_string ("ATOM"); staticpro (&QATOM); | |
2957 | QATOM_PAIR = intern_c_string ("ATOM_PAIR"); staticpro (&QATOM_PAIR); | |
2958 | QNULL = intern_c_string ("NULL"); staticpro (&QNULL); | |
2959 | Qcompound_text_with_extensions = intern_c_string ("compound-text-with-extensions"); | |
5a79ea57 | 2960 | staticpro (&Qcompound_text_with_extensions); |
ede4db72 RS |
2961 | |
2962 | #ifdef CUT_BUFFER_SUPPORT | |
d67b4f80 DN |
2963 | QCUT_BUFFER0 = intern_c_string ("CUT_BUFFER0"); staticpro (&QCUT_BUFFER0); |
2964 | QCUT_BUFFER1 = intern_c_string ("CUT_BUFFER1"); staticpro (&QCUT_BUFFER1); | |
2965 | QCUT_BUFFER2 = intern_c_string ("CUT_BUFFER2"); staticpro (&QCUT_BUFFER2); | |
2966 | QCUT_BUFFER3 = intern_c_string ("CUT_BUFFER3"); staticpro (&QCUT_BUFFER3); | |
2967 | QCUT_BUFFER4 = intern_c_string ("CUT_BUFFER4"); staticpro (&QCUT_BUFFER4); | |
2968 | QCUT_BUFFER5 = intern_c_string ("CUT_BUFFER5"); staticpro (&QCUT_BUFFER5); | |
2969 | QCUT_BUFFER6 = intern_c_string ("CUT_BUFFER6"); staticpro (&QCUT_BUFFER6); | |
2970 | QCUT_BUFFER7 = intern_c_string ("CUT_BUFFER7"); staticpro (&QCUT_BUFFER7); | |
ede4db72 RS |
2971 | #endif |
2972 | ||
d67b4f80 | 2973 | Qforeign_selection = intern_c_string ("foreign-selection"); |
e57ad4d8 | 2974 | staticpro (&Qforeign_selection); |
ede4db72 | 2975 | } |
ab5796a9 MB |
2976 | |
2977 | /* arch-tag: 7c293b0f-9918-4f69-8ac7-03e142307236 | |
2978 | (do not change this comment) */ |