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2408b3a1 | 1 | /* X Selection processing for Emacs. |
0b5538bd | 2 | Copyright (C) 1993, 1994, 1995, 1996, 1997, 2000, 2001, 2002, 2003, |
aaef169d | 3 | 2004, 2005, 2006 Free Software Foundation, Inc. |
ede4db72 RS |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
4fc5845f LK |
19 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 | Boston, MA 02110-1301, USA. */ | |
ede4db72 | 21 | |
c6c5df7f | 22 | |
ede4db72 RS |
23 | /* Rewritten by jwz */ |
24 | ||
18160b98 | 25 | #include <config.h> |
5b698285 | 26 | #include <stdio.h> /* termhooks.h needs this */ |
678b3958 KS |
27 | |
28 | #ifdef HAVE_SYS_TYPES_H | |
29 | #include <sys/types.h> | |
30 | #endif | |
31 | #ifdef HAVE_UNISTD_H | |
32 | #include <unistd.h> | |
33 | #endif | |
34 | ||
ede4db72 RS |
35 | #include "lisp.h" |
36 | #include "xterm.h" /* for all of the X includes */ | |
7da64e5c RS |
37 | #include "dispextern.h" /* frame.h seems to want this */ |
38 | #include "frame.h" /* Need this to get the X window of selected_frame */ | |
9ac0d9e0 | 39 | #include "blockinput.h" |
5faa9b45 | 40 | #include "buffer.h" |
dfcf069d | 41 | #include "process.h" |
1fb3821b | 42 | #include "termhooks.h" |
dd0fe424 | 43 | #include "keyboard.h" |
1fb3821b JD |
44 | |
45 | #include <X11/Xproto.h> | |
7da64e5c | 46 | |
d9c0d4a3 GM |
47 | struct prop_location; |
48 | ||
49 | static Lisp_Object x_atom_to_symbol P_ ((Display *dpy, Atom atom)); | |
50 | static Atom symbol_to_x_atom P_ ((struct x_display_info *, Display *, | |
51 | Lisp_Object)); | |
52 | static void x_own_selection P_ ((Lisp_Object, Lisp_Object)); | |
5109c8dd | 53 | static Lisp_Object x_get_local_selection P_ ((Lisp_Object, Lisp_Object, int)); |
d9c0d4a3 GM |
54 | static void x_decline_selection_request P_ ((struct input_event *)); |
55 | static Lisp_Object x_selection_request_lisp_error P_ ((Lisp_Object)); | |
56 | static Lisp_Object queue_selection_requests_unwind P_ ((Lisp_Object)); | |
57 | static Lisp_Object some_frame_on_display P_ ((struct x_display_info *)); | |
c525d842 | 58 | static Lisp_Object x_catch_errors_unwind P_ ((Lisp_Object)); |
d9c0d4a3 GM |
59 | static void x_reply_selection_request P_ ((struct input_event *, int, |
60 | unsigned char *, int, Atom)); | |
61 | static int waiting_for_other_props_on_window P_ ((Display *, Window)); | |
62 | static struct prop_location *expect_property_change P_ ((Display *, Window, | |
63 | Atom, int)); | |
64 | static void unexpect_property_change P_ ((struct prop_location *)); | |
65 | static Lisp_Object wait_for_property_change_unwind P_ ((Lisp_Object)); | |
66 | static void wait_for_property_change P_ ((struct prop_location *)); | |
3a42401d JD |
67 | static Lisp_Object x_get_foreign_selection P_ ((Lisp_Object, |
68 | Lisp_Object, | |
69 | Lisp_Object)); | |
d9c0d4a3 GM |
70 | static void x_get_window_property P_ ((Display *, Window, Atom, |
71 | unsigned char **, int *, | |
72 | Atom *, int *, unsigned long *, int)); | |
73 | static void receive_incremental_selection P_ ((Display *, Window, Atom, | |
74 | Lisp_Object, unsigned, | |
75 | unsigned char **, int *, | |
76 | Atom *, int *, unsigned long *)); | |
77 | static Lisp_Object x_get_window_property_as_lisp_data P_ ((Display *, | |
78 | Window, Atom, | |
79 | Lisp_Object, Atom)); | |
80 | static Lisp_Object selection_data_to_lisp_data P_ ((Display *, unsigned char *, | |
81 | int, Atom, int)); | |
82 | static void lisp_data_to_selection_data P_ ((Display *, Lisp_Object, | |
83 | unsigned char **, Atom *, | |
84 | unsigned *, int *, int *)); | |
85 | static Lisp_Object clean_local_selection_data P_ ((Lisp_Object)); | |
86 | static void initialize_cut_buffers P_ ((Display *, Window)); | |
87 | ||
88 | ||
89 | /* Printing traces to stderr. */ | |
90 | ||
91 | #ifdef TRACE_SELECTION | |
92 | #define TRACE0(fmt) \ | |
93 | fprintf (stderr, "%d: " fmt "\n", getpid ()) | |
94 | #define TRACE1(fmt, a0) \ | |
95 | fprintf (stderr, "%d: " fmt "\n", getpid (), a0) | |
96 | #define TRACE2(fmt, a0, a1) \ | |
97 | fprintf (stderr, "%d: " fmt "\n", getpid (), a0, a1) | |
9c3ad9e1 JD |
98 | #define TRACE3(fmt, a0, a1, a2) \ |
99 | fprintf (stderr, "%d: " fmt "\n", getpid (), a0, a1, a2) | |
d9c0d4a3 GM |
100 | #else |
101 | #define TRACE0(fmt) (void) 0 | |
102 | #define TRACE1(fmt, a0) (void) 0 | |
103 | #define TRACE2(fmt, a0, a1) (void) 0 | |
9c3ad9e1 | 104 | #define TRACE3(fmt, a0, a1) (void) 0 |
d9c0d4a3 GM |
105 | #endif |
106 | ||
107 | ||
ede4db72 RS |
108 | #define CUT_BUFFER_SUPPORT |
109 | ||
ede4db72 RS |
110 | Lisp_Object QPRIMARY, QSECONDARY, QSTRING, QINTEGER, QCLIPBOARD, QTIMESTAMP, |
111 | QTEXT, QDELETE, QMULTIPLE, QINCR, QEMACS_TMP, QTARGETS, QATOM, QNULL, | |
112 | QATOM_PAIR; | |
113 | ||
e6c7c988 | 114 | Lisp_Object QCOMPOUND_TEXT; /* This is a type of selection. */ |
5109c8dd | 115 | Lisp_Object QUTF8_STRING; /* This is a type of selection. */ |
e6c7c988 | 116 | |
5a79ea57 | 117 | Lisp_Object Qcompound_text_with_extensions; |
fbbe0ace | 118 | |
ede4db72 RS |
119 | #ifdef CUT_BUFFER_SUPPORT |
120 | Lisp_Object QCUT_BUFFER0, QCUT_BUFFER1, QCUT_BUFFER2, QCUT_BUFFER3, | |
121 | QCUT_BUFFER4, QCUT_BUFFER5, QCUT_BUFFER6, QCUT_BUFFER7; | |
122 | #endif | |
123 | ||
c917a8de SM |
124 | static Lisp_Object Vx_lost_selection_functions; |
125 | static Lisp_Object Vx_sent_selection_functions; | |
2584c9ec KH |
126 | /* Coding system for communicating with other X clients via cutbuffer, |
127 | selection, and clipboard. */ | |
93e4ce1b | 128 | static Lisp_Object Vselection_coding_system; |
ede4db72 | 129 | |
16cd5029 KH |
130 | /* Coding system for the next communicating with other X clients. */ |
131 | static Lisp_Object Vnext_selection_coding_system; | |
132 | ||
e57ad4d8 KH |
133 | static Lisp_Object Qforeign_selection; |
134 | ||
ede4db72 RS |
135 | /* If this is a smaller number than the max-request-size of the display, |
136 | emacs will use INCR selection transfer when the selection is larger | |
137 | than this. The max-request-size is usually around 64k, so if you want | |
1b65481e | 138 | emacs to use incremental selection transfers when the selection is |
ede4db72 | 139 | smaller than that, set this. I added this mostly for debugging the |
8f4f023f | 140 | incremental transfer stuff, but it might improve server performance. */ |
ede4db72 RS |
141 | #define MAX_SELECTION_QUANTUM 0xFFFFFF |
142 | ||
c3498e64 JB |
143 | #ifdef HAVE_X11R4 |
144 | #define SELECTION_QUANTUM(dpy) ((XMaxRequestSize(dpy) << 2) - 100) | |
145 | #else | |
146 | #define SELECTION_QUANTUM(dpy) (((dpy)->max_request_size << 2) - 100) | |
147 | #endif | |
ede4db72 | 148 | |
7da64e5c | 149 | /* The timestamp of the last input event Emacs received from the X server. */ |
29674445 KH |
150 | /* Defined in keyboard.c. */ |
151 | extern unsigned long last_event_timestamp; | |
ede4db72 RS |
152 | |
153 | /* This is an association list whose elements are of the form | |
118bd841 RS |
154 | ( SELECTION-NAME SELECTION-VALUE SELECTION-TIMESTAMP FRAME) |
155 | SELECTION-NAME is a lisp symbol, whose name is the name of an X Atom. | |
156 | SELECTION-VALUE is the value that emacs owns for that selection. | |
ede4db72 | 157 | It may be any kind of Lisp object. |
118bd841 | 158 | SELECTION-TIMESTAMP is the time at which emacs began owning this selection, |
ede4db72 | 159 | as a cons of two 16-bit numbers (making a 32 bit time.) |
118bd841 RS |
160 | FRAME is the frame for which we made the selection. |
161 | If there is an entry in this alist, then it can be assumed that Emacs owns | |
ede4db72 RS |
162 | that selection. |
163 | The only (eq) parts of this list that are visible from Lisp are the | |
8f4f023f RS |
164 | selection-values. */ |
165 | static Lisp_Object Vselection_alist; | |
ede4db72 RS |
166 | |
167 | /* This is an alist whose CARs are selection-types (whose names are the same | |
168 | as the names of X Atoms) and whose CDRs are the names of Lisp functions to | |
1b65481e | 169 | call to convert the given Emacs selection value to a string representing |
ede4db72 | 170 | the given selection type. This is for Lisp-level extension of the emacs |
8f4f023f RS |
171 | selection handling. */ |
172 | static Lisp_Object Vselection_converter_alist; | |
ede4db72 RS |
173 | |
174 | /* If the selection owner takes too long to reply to a selection request, | |
8f4f023f | 175 | we give up on it. This is in milliseconds (0 = no timeout.) */ |
31ade731 | 176 | static EMACS_INT x_selection_timeout; |
ede4db72 | 177 | |
dd0fe424 KS |
178 | |
179 | \f | |
678b3958 KS |
180 | /* Define a queue to save up SELECTION_REQUEST_EVENT events for later |
181 | handling. */ | |
dd0fe424 KS |
182 | |
183 | struct selection_event_queue | |
184 | { | |
185 | struct input_event event; | |
186 | struct selection_event_queue *next; | |
187 | }; | |
188 | ||
189 | static struct selection_event_queue *selection_queue; | |
190 | ||
678b3958 | 191 | /* Nonzero means queue up SELECTION_REQUEST_EVENT events. */ |
dd0fe424 KS |
192 | |
193 | static int x_queue_selection_requests; | |
194 | ||
678b3958 | 195 | /* Queue up an SELECTION_REQUEST_EVENT *EVENT, to be processed later. */ |
dd0fe424 KS |
196 | |
197 | static void | |
198 | x_queue_event (event) | |
199 | struct input_event *event; | |
200 | { | |
201 | struct selection_event_queue *queue_tmp; | |
202 | ||
678b3958 KS |
203 | /* Don't queue repeated requests. |
204 | This only happens for large requests which uses the incremental protocol. */ | |
dd0fe424 KS |
205 | for (queue_tmp = selection_queue; queue_tmp; queue_tmp = queue_tmp->next) |
206 | { | |
207 | if (!bcmp (&queue_tmp->event, event, sizeof (*event))) | |
208 | { | |
678b3958 KS |
209 | TRACE1 ("DECLINE DUP SELECTION EVENT %08lx", (unsigned long)queue_tmp); |
210 | x_decline_selection_request (event); | |
dd0fe424 KS |
211 | return; |
212 | } | |
213 | } | |
214 | ||
215 | queue_tmp | |
216 | = (struct selection_event_queue *) xmalloc (sizeof (struct selection_event_queue)); | |
217 | ||
218 | if (queue_tmp != NULL) | |
219 | { | |
678b3958 | 220 | TRACE1 ("QUEUE SELECTION EVENT %08lx", (unsigned long)queue_tmp); |
dd0fe424 KS |
221 | queue_tmp->event = *event; |
222 | queue_tmp->next = selection_queue; | |
223 | selection_queue = queue_tmp; | |
224 | } | |
225 | } | |
226 | ||
678b3958 | 227 | /* Start queuing SELECTION_REQUEST_EVENT events. */ |
dd0fe424 KS |
228 | |
229 | static void | |
230 | x_start_queuing_selection_requests () | |
231 | { | |
232 | if (x_queue_selection_requests) | |
233 | abort (); | |
234 | ||
235 | x_queue_selection_requests++; | |
236 | TRACE1 ("x_start_queuing_selection_requests %d", x_queue_selection_requests); | |
237 | } | |
238 | ||
678b3958 | 239 | /* Stop queuing SELECTION_REQUEST_EVENT events. */ |
dd0fe424 KS |
240 | |
241 | static void | |
242 | x_stop_queuing_selection_requests () | |
243 | { | |
244 | TRACE1 ("x_stop_queuing_selection_requests %d", x_queue_selection_requests); | |
245 | --x_queue_selection_requests; | |
246 | ||
247 | /* Take all the queued events and put them back | |
248 | so that they get processed afresh. */ | |
249 | ||
250 | while (selection_queue != NULL) | |
251 | { | |
252 | struct selection_event_queue *queue_tmp = selection_queue; | |
678b3958 | 253 | TRACE1 ("RESTORE SELECTION EVENT %08lx", (unsigned long)queue_tmp); |
dd0fe424 KS |
254 | kbd_buffer_unget_event (&queue_tmp->event); |
255 | selection_queue = queue_tmp->next; | |
256 | xfree ((char *)queue_tmp); | |
257 | } | |
258 | } | |
259 | \f | |
260 | ||
1b65481e | 261 | /* This converts a Lisp symbol to a server Atom, avoiding a server |
ede4db72 RS |
262 | roundtrip whenever possible. */ |
263 | ||
264 | static Atom | |
5c3a351a RS |
265 | symbol_to_x_atom (dpyinfo, display, sym) |
266 | struct x_display_info *dpyinfo; | |
ede4db72 RS |
267 | Display *display; |
268 | Lisp_Object sym; | |
269 | { | |
270 | Atom val; | |
271 | if (NILP (sym)) return 0; | |
272 | if (EQ (sym, QPRIMARY)) return XA_PRIMARY; | |
273 | if (EQ (sym, QSECONDARY)) return XA_SECONDARY; | |
274 | if (EQ (sym, QSTRING)) return XA_STRING; | |
275 | if (EQ (sym, QINTEGER)) return XA_INTEGER; | |
276 | if (EQ (sym, QATOM)) return XA_ATOM; | |
5c3a351a RS |
277 | if (EQ (sym, QCLIPBOARD)) return dpyinfo->Xatom_CLIPBOARD; |
278 | if (EQ (sym, QTIMESTAMP)) return dpyinfo->Xatom_TIMESTAMP; | |
279 | if (EQ (sym, QTEXT)) return dpyinfo->Xatom_TEXT; | |
e6c7c988 | 280 | if (EQ (sym, QCOMPOUND_TEXT)) return dpyinfo->Xatom_COMPOUND_TEXT; |
5109c8dd | 281 | if (EQ (sym, QUTF8_STRING)) return dpyinfo->Xatom_UTF8_STRING; |
5c3a351a RS |
282 | if (EQ (sym, QDELETE)) return dpyinfo->Xatom_DELETE; |
283 | if (EQ (sym, QMULTIPLE)) return dpyinfo->Xatom_MULTIPLE; | |
284 | if (EQ (sym, QINCR)) return dpyinfo->Xatom_INCR; | |
285 | if (EQ (sym, QEMACS_TMP)) return dpyinfo->Xatom_EMACS_TMP; | |
286 | if (EQ (sym, QTARGETS)) return dpyinfo->Xatom_TARGETS; | |
287 | if (EQ (sym, QNULL)) return dpyinfo->Xatom_NULL; | |
ede4db72 RS |
288 | #ifdef CUT_BUFFER_SUPPORT |
289 | if (EQ (sym, QCUT_BUFFER0)) return XA_CUT_BUFFER0; | |
290 | if (EQ (sym, QCUT_BUFFER1)) return XA_CUT_BUFFER1; | |
291 | if (EQ (sym, QCUT_BUFFER2)) return XA_CUT_BUFFER2; | |
292 | if (EQ (sym, QCUT_BUFFER3)) return XA_CUT_BUFFER3; | |
293 | if (EQ (sym, QCUT_BUFFER4)) return XA_CUT_BUFFER4; | |
294 | if (EQ (sym, QCUT_BUFFER5)) return XA_CUT_BUFFER5; | |
295 | if (EQ (sym, QCUT_BUFFER6)) return XA_CUT_BUFFER6; | |
296 | if (EQ (sym, QCUT_BUFFER7)) return XA_CUT_BUFFER7; | |
297 | #endif | |
298 | if (!SYMBOLP (sym)) abort (); | |
299 | ||
d5db4077 | 300 | TRACE1 (" XInternAtom %s", (char *) SDATA (SYMBOL_NAME (sym))); |
ede4db72 | 301 | BLOCK_INPUT; |
d5db4077 | 302 | val = XInternAtom (display, (char *) SDATA (SYMBOL_NAME (sym)), False); |
ede4db72 RS |
303 | UNBLOCK_INPUT; |
304 | return val; | |
305 | } | |
306 | ||
307 | ||
308 | /* This converts a server Atom to a Lisp symbol, avoiding server roundtrips | |
309 | and calls to intern whenever possible. */ | |
310 | ||
311 | static Lisp_Object | |
d9c0d4a3 GM |
312 | x_atom_to_symbol (dpy, atom) |
313 | Display *dpy; | |
ede4db72 RS |
314 | Atom atom; |
315 | { | |
d9c0d4a3 | 316 | struct x_display_info *dpyinfo; |
ede4db72 RS |
317 | char *str; |
318 | Lisp_Object val; | |
1b65481e | 319 | |
d9c0d4a3 GM |
320 | if (! atom) |
321 | return Qnil; | |
1b65481e | 322 | |
7da64e5c RS |
323 | switch (atom) |
324 | { | |
325 | case XA_PRIMARY: | |
326 | return QPRIMARY; | |
327 | case XA_SECONDARY: | |
328 | return QSECONDARY; | |
329 | case XA_STRING: | |
330 | return QSTRING; | |
331 | case XA_INTEGER: | |
332 | return QINTEGER; | |
333 | case XA_ATOM: | |
334 | return QATOM; | |
ede4db72 | 335 | #ifdef CUT_BUFFER_SUPPORT |
7da64e5c RS |
336 | case XA_CUT_BUFFER0: |
337 | return QCUT_BUFFER0; | |
338 | case XA_CUT_BUFFER1: | |
339 | return QCUT_BUFFER1; | |
340 | case XA_CUT_BUFFER2: | |
341 | return QCUT_BUFFER2; | |
342 | case XA_CUT_BUFFER3: | |
343 | return QCUT_BUFFER3; | |
344 | case XA_CUT_BUFFER4: | |
345 | return QCUT_BUFFER4; | |
346 | case XA_CUT_BUFFER5: | |
347 | return QCUT_BUFFER5; | |
348 | case XA_CUT_BUFFER6: | |
349 | return QCUT_BUFFER6; | |
350 | case XA_CUT_BUFFER7: | |
351 | return QCUT_BUFFER7; | |
ede4db72 | 352 | #endif |
7da64e5c RS |
353 | } |
354 | ||
d9c0d4a3 | 355 | dpyinfo = x_display_info_for_display (dpy); |
5c3a351a | 356 | if (atom == dpyinfo->Xatom_CLIPBOARD) |
7da64e5c | 357 | return QCLIPBOARD; |
5c3a351a | 358 | if (atom == dpyinfo->Xatom_TIMESTAMP) |
7da64e5c | 359 | return QTIMESTAMP; |
5c3a351a | 360 | if (atom == dpyinfo->Xatom_TEXT) |
7da64e5c | 361 | return QTEXT; |
e6c7c988 KH |
362 | if (atom == dpyinfo->Xatom_COMPOUND_TEXT) |
363 | return QCOMPOUND_TEXT; | |
5109c8dd KH |
364 | if (atom == dpyinfo->Xatom_UTF8_STRING) |
365 | return QUTF8_STRING; | |
5c3a351a | 366 | if (atom == dpyinfo->Xatom_DELETE) |
7da64e5c | 367 | return QDELETE; |
5c3a351a | 368 | if (atom == dpyinfo->Xatom_MULTIPLE) |
7da64e5c | 369 | return QMULTIPLE; |
5c3a351a | 370 | if (atom == dpyinfo->Xatom_INCR) |
7da64e5c | 371 | return QINCR; |
5c3a351a | 372 | if (atom == dpyinfo->Xatom_EMACS_TMP) |
7da64e5c | 373 | return QEMACS_TMP; |
5c3a351a | 374 | if (atom == dpyinfo->Xatom_TARGETS) |
7da64e5c | 375 | return QTARGETS; |
5c3a351a | 376 | if (atom == dpyinfo->Xatom_NULL) |
7da64e5c | 377 | return QNULL; |
ede4db72 RS |
378 | |
379 | BLOCK_INPUT; | |
d9c0d4a3 | 380 | str = XGetAtomName (dpy, atom); |
ede4db72 | 381 | UNBLOCK_INPUT; |
d9c0d4a3 | 382 | TRACE1 ("XGetAtomName --> %s", str); |
ede4db72 RS |
383 | if (! str) return Qnil; |
384 | val = intern (str); | |
385 | BLOCK_INPUT; | |
0158abbc | 386 | /* This was allocated by Xlib, so use XFree. */ |
ede4db72 RS |
387 | XFree (str); |
388 | UNBLOCK_INPUT; | |
389 | return val; | |
390 | } | |
8a89415e | 391 | \f |
ede4db72 | 392 | /* Do protocol to assert ourself as a selection owner. |
1b65481e | 393 | Update the Vselection_alist so that we can reply to later requests for |
ede4db72 RS |
394 | our selection. */ |
395 | ||
396 | static void | |
397 | x_own_selection (selection_name, selection_value) | |
398 | Lisp_Object selection_name, selection_value; | |
399 | { | |
378c33ca GM |
400 | struct frame *sf = SELECTED_FRAME (); |
401 | Window selecting_window = FRAME_X_WINDOW (sf); | |
402 | Display *display = FRAME_X_DISPLAY (sf); | |
7da64e5c | 403 | Time time = last_event_timestamp; |
ede4db72 | 404 | Atom selection_atom; |
378c33ca | 405 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (sf); |
ede4db72 | 406 | |
b7826503 | 407 | CHECK_SYMBOL (selection_name); |
5c3a351a | 408 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection_name); |
ede4db72 RS |
409 | |
410 | BLOCK_INPUT; | |
9ba8e10d | 411 | x_catch_errors (display); |
ede4db72 | 412 | XSetSelectionOwner (display, selection_atom, selecting_window, time); |
a7b24d46 | 413 | x_check_errors (display, "Can't set selection: %s"); |
4545fa20 | 414 | x_uncatch_errors (); |
ede4db72 RS |
415 | UNBLOCK_INPUT; |
416 | ||
417 | /* Now update the local cache */ | |
418 | { | |
419 | Lisp_Object selection_time; | |
420 | Lisp_Object selection_data; | |
421 | Lisp_Object prev_value; | |
422 | ||
423 | selection_time = long_to_cons ((unsigned long) time); | |
424 | selection_data = Fcons (selection_name, | |
425 | Fcons (selection_value, | |
118bd841 | 426 | Fcons (selection_time, |
378c33ca | 427 | Fcons (selected_frame, Qnil)))); |
ede4db72 RS |
428 | prev_value = assq_no_quit (selection_name, Vselection_alist); |
429 | ||
430 | Vselection_alist = Fcons (selection_data, Vselection_alist); | |
431 | ||
432 | /* If we already owned the selection, remove the old selection data. | |
433 | Perhaps we should destructively modify it instead. | |
434 | Don't use Fdelq as that may QUIT. */ | |
435 | if (!NILP (prev_value)) | |
436 | { | |
437 | Lisp_Object rest; /* we know it's not the CAR, so it's easy. */ | |
438 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) | |
8e713be6 | 439 | if (EQ (prev_value, Fcar (XCDR (rest)))) |
ede4db72 | 440 | { |
f3fbd155 | 441 | XSETCDR (rest, Fcdr (XCDR (rest))); |
ede4db72 RS |
442 | break; |
443 | } | |
444 | } | |
445 | } | |
446 | } | |
447 | \f | |
448 | /* Given a selection-name and desired type, look up our local copy of | |
449 | the selection value and convert it to the type. | |
450 | The value is nil or a string. | |
5109c8dd KH |
451 | This function is used both for remote requests (LOCAL_REQUEST is zero) |
452 | and for local x-get-selection-internal (LOCAL_REQUEST is nonzero). | |
ede4db72 RS |
453 | |
454 | This calls random Lisp code, and may signal or gc. */ | |
455 | ||
456 | static Lisp_Object | |
5109c8dd | 457 | x_get_local_selection (selection_symbol, target_type, local_request) |
ede4db72 | 458 | Lisp_Object selection_symbol, target_type; |
5109c8dd | 459 | int local_request; |
ede4db72 RS |
460 | { |
461 | Lisp_Object local_value; | |
462 | Lisp_Object handler_fn, value, type, check; | |
463 | int count; | |
464 | ||
465 | local_value = assq_no_quit (selection_symbol, Vselection_alist); | |
466 | ||
467 | if (NILP (local_value)) return Qnil; | |
468 | ||
469 | /* TIMESTAMP and MULTIPLE are special cases 'cause that's easiest. */ | |
470 | if (EQ (target_type, QTIMESTAMP)) | |
471 | { | |
472 | handler_fn = Qnil; | |
8e713be6 | 473 | value = XCAR (XCDR (XCDR (local_value))); |
ede4db72 RS |
474 | } |
475 | #if 0 | |
476 | else if (EQ (target_type, QDELETE)) | |
477 | { | |
478 | handler_fn = Qnil; | |
479 | Fx_disown_selection_internal | |
480 | (selection_symbol, | |
8e713be6 | 481 | XCAR (XCDR (XCDR (local_value)))); |
ede4db72 RS |
482 | value = QNULL; |
483 | } | |
484 | #endif | |
485 | ||
486 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
487 | else if (CONSP (target_type) | |
8e713be6 | 488 | && XCAR (target_type) == QMULTIPLE) |
ede4db72 | 489 | { |
9d2d1dd8 KH |
490 | Lisp_Object pairs; |
491 | int size; | |
ede4db72 | 492 | int i; |
8e713be6 | 493 | pairs = XCDR (target_type); |
9d2d1dd8 | 494 | size = XVECTOR (pairs)->size; |
ede4db72 RS |
495 | /* If the target is MULTIPLE, then target_type looks like |
496 | (MULTIPLE . [[SELECTION1 TARGET1] [SELECTION2 TARGET2] ... ]) | |
497 | We modify the second element of each pair in the vector and | |
498 | return it as [[SELECTION1 <value1>] [SELECTION2 <value2>] ... ] | |
499 | */ | |
500 | for (i = 0; i < size; i++) | |
501 | { | |
9d2d1dd8 KH |
502 | Lisp_Object pair; |
503 | pair = XVECTOR (pairs)->contents [i]; | |
ede4db72 RS |
504 | XVECTOR (pair)->contents [1] |
505 | = x_get_local_selection (XVECTOR (pair)->contents [0], | |
5109c8dd KH |
506 | XVECTOR (pair)->contents [1], |
507 | local_request); | |
ede4db72 RS |
508 | } |
509 | return pairs; | |
510 | } | |
511 | #endif | |
512 | else | |
513 | { | |
514 | /* Don't allow a quit within the converter. | |
515 | When the user types C-g, he would be surprised | |
516 | if by luck it came during a converter. */ | |
aed13378 | 517 | count = SPECPDL_INDEX (); |
ede4db72 RS |
518 | specbind (Qinhibit_quit, Qt); |
519 | ||
b7826503 | 520 | CHECK_SYMBOL (target_type); |
ede4db72 | 521 | handler_fn = Fcdr (Fassq (target_type, Vselection_converter_alist)); |
4f06187f RS |
522 | /* gcpro is not needed here since nothing but HANDLER_FN |
523 | is live, and that ought to be a symbol. */ | |
524 | ||
1eb4d468 RS |
525 | if (!NILP (handler_fn)) |
526 | value = call3 (handler_fn, | |
5109c8dd | 527 | selection_symbol, (local_request ? Qnil : target_type), |
8e713be6 | 528 | XCAR (XCDR (local_value))); |
1eb4d468 RS |
529 | else |
530 | value = Qnil; | |
ede4db72 RS |
531 | unbind_to (count, Qnil); |
532 | } | |
533 | ||
534 | /* Make sure this value is of a type that we could transmit | |
535 | to another X client. */ | |
a87ed99c | 536 | |
ede4db72 RS |
537 | check = value; |
538 | if (CONSP (value) | |
8e713be6 KR |
539 | && SYMBOLP (XCAR (value))) |
540 | type = XCAR (value), | |
541 | check = XCDR (value); | |
1b65481e | 542 | |
ede4db72 RS |
543 | if (STRINGP (check) |
544 | || VECTORP (check) | |
545 | || SYMBOLP (check) | |
7da64e5c | 546 | || INTEGERP (check) |
ede4db72 RS |
547 | || NILP (value)) |
548 | return value; | |
a87ed99c | 549 | /* Check for a value that cons_to_long could handle. */ |
ede4db72 | 550 | else if (CONSP (check) |
8e713be6 KR |
551 | && INTEGERP (XCAR (check)) |
552 | && (INTEGERP (XCDR (check)) | |
ede4db72 | 553 | || |
8e713be6 KR |
554 | (CONSP (XCDR (check)) |
555 | && INTEGERP (XCAR (XCDR (check))) | |
556 | && NILP (XCDR (XCDR (check)))))) | |
ede4db72 RS |
557 | return value; |
558 | else | |
559 | return | |
560 | Fsignal (Qerror, | |
a87ed99c | 561 | Fcons (build_string ("invalid data returned by selection-conversion function"), |
ede4db72 RS |
562 | Fcons (handler_fn, Fcons (value, Qnil)))); |
563 | } | |
564 | \f | |
565 | /* Subroutines of x_reply_selection_request. */ | |
566 | ||
5d0ba25b | 567 | /* Send a SelectionNotify event to the requestor with property=None, |
ede4db72 RS |
568 | meaning we were unable to do what they wanted. */ |
569 | ||
570 | static void | |
571 | x_decline_selection_request (event) | |
572 | struct input_event *event; | |
573 | { | |
574 | XSelectionEvent reply; | |
1b65481e | 575 | |
ede4db72 RS |
576 | reply.type = SelectionNotify; |
577 | reply.display = SELECTION_EVENT_DISPLAY (event); | |
5d0ba25b | 578 | reply.requestor = SELECTION_EVENT_REQUESTOR (event); |
ede4db72 RS |
579 | reply.selection = SELECTION_EVENT_SELECTION (event); |
580 | reply.time = SELECTION_EVENT_TIME (event); | |
581 | reply.target = SELECTION_EVENT_TARGET (event); | |
582 | reply.property = None; | |
583 | ||
d9c0d4a3 GM |
584 | /* The reason for the error may be that the receiver has |
585 | died in the meantime. Handle that case. */ | |
ede4db72 | 586 | BLOCK_INPUT; |
9ba8e10d | 587 | x_catch_errors (reply.display); |
d9c0d4a3 | 588 | XSendEvent (reply.display, reply.requestor, False, 0L, (XEvent *) &reply); |
5c3a351a | 589 | XFlush (reply.display); |
4545fa20 | 590 | x_uncatch_errors (); |
ede4db72 RS |
591 | UNBLOCK_INPUT; |
592 | } | |
593 | ||
594 | /* This is the selection request currently being processed. | |
595 | It is set to zero when the request is fully processed. */ | |
596 | static struct input_event *x_selection_current_request; | |
597 | ||
ca29f2b8 GM |
598 | /* Display info in x_selection_request. */ |
599 | ||
600 | static struct x_display_info *selection_request_dpyinfo; | |
601 | ||
ede4db72 | 602 | /* Used as an unwind-protect clause so that, if a selection-converter signals |
2a1a4c9d | 603 | an error, we tell the requester that we were unable to do what they wanted |
ede4db72 RS |
604 | before we throw to top-level or go into the debugger or whatever. */ |
605 | ||
606 | static Lisp_Object | |
607 | x_selection_request_lisp_error (ignore) | |
608 | Lisp_Object ignore; | |
609 | { | |
ca29f2b8 GM |
610 | if (x_selection_current_request != 0 |
611 | && selection_request_dpyinfo->display) | |
ede4db72 RS |
612 | x_decline_selection_request (x_selection_current_request); |
613 | return Qnil; | |
614 | } | |
c525d842 CY |
615 | |
616 | static Lisp_Object | |
617 | x_catch_errors_unwind (dummy) | |
618 | Lisp_Object dummy; | |
619 | { | |
620 | BLOCK_INPUT; | |
621 | x_uncatch_errors (); | |
622 | UNBLOCK_INPUT; | |
623 | } | |
ede4db72 | 624 | \f |
d1f21a66 RS |
625 | |
626 | /* This stuff is so that INCR selections are reentrant (that is, so we can | |
627 | be servicing multiple INCR selection requests simultaneously.) I haven't | |
628 | actually tested that yet. */ | |
629 | ||
630 | /* Keep a list of the property changes that are awaited. */ | |
631 | ||
632 | struct prop_location | |
633 | { | |
634 | int identifier; | |
635 | Display *display; | |
636 | Window window; | |
637 | Atom property; | |
638 | int desired_state; | |
639 | int arrived; | |
640 | struct prop_location *next; | |
641 | }; | |
642 | ||
643 | static struct prop_location *expect_property_change (); | |
644 | static void wait_for_property_change (); | |
645 | static void unexpect_property_change (); | |
646 | static int waiting_for_other_props_on_window (); | |
647 | ||
648 | static int prop_location_identifier; | |
649 | ||
650 | static Lisp_Object property_change_reply; | |
651 | ||
652 | static struct prop_location *property_change_reply_object; | |
653 | ||
654 | static struct prop_location *property_change_wait_list; | |
55b2d45d RS |
655 | |
656 | static Lisp_Object | |
dd0fe424 KS |
657 | queue_selection_requests_unwind (tem) |
658 | Lisp_Object tem; | |
55b2d45d | 659 | { |
dd0fe424 | 660 | x_stop_queuing_selection_requests (); |
ab552306 | 661 | return Qnil; |
55b2d45d RS |
662 | } |
663 | ||
664 | /* Return some frame whose display info is DPYINFO. | |
665 | Return nil if there is none. */ | |
666 | ||
667 | static Lisp_Object | |
668 | some_frame_on_display (dpyinfo) | |
669 | struct x_display_info *dpyinfo; | |
670 | { | |
671 | Lisp_Object list, frame; | |
672 | ||
673 | FOR_EACH_FRAME (list, frame) | |
674 | { | |
675 | if (FRAME_X_DISPLAY_INFO (XFRAME (frame)) == dpyinfo) | |
676 | return frame; | |
677 | } | |
678 | ||
679 | return Qnil; | |
680 | } | |
d1f21a66 | 681 | \f |
ede4db72 RS |
682 | /* Send the reply to a selection request event EVENT. |
683 | TYPE is the type of selection data requested. | |
684 | DATA and SIZE describe the data to send, already converted. | |
685 | FORMAT is the unit-size (in bits) of the data to be transmitted. */ | |
686 | ||
687 | static void | |
688 | x_reply_selection_request (event, format, data, size, type) | |
689 | struct input_event *event; | |
690 | int format, size; | |
691 | unsigned char *data; | |
692 | Atom type; | |
693 | { | |
694 | XSelectionEvent reply; | |
695 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
5d0ba25b | 696 | Window window = SELECTION_EVENT_REQUESTOR (event); |
ede4db72 RS |
697 | int bytes_remaining; |
698 | int format_bytes = format/8; | |
699 | int max_bytes = SELECTION_QUANTUM (display); | |
5c3a351a | 700 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
9ba8e10d | 701 | int count = SPECPDL_INDEX (); |
ede4db72 RS |
702 | |
703 | if (max_bytes > MAX_SELECTION_QUANTUM) | |
704 | max_bytes = MAX_SELECTION_QUANTUM; | |
705 | ||
706 | reply.type = SelectionNotify; | |
707 | reply.display = display; | |
5d0ba25b | 708 | reply.requestor = window; |
ede4db72 RS |
709 | reply.selection = SELECTION_EVENT_SELECTION (event); |
710 | reply.time = SELECTION_EVENT_TIME (event); | |
711 | reply.target = SELECTION_EVENT_TARGET (event); | |
712 | reply.property = SELECTION_EVENT_PROPERTY (event); | |
713 | if (reply.property == None) | |
714 | reply.property = reply.target; | |
715 | ||
afe1529d | 716 | BLOCK_INPUT; |
c525d842 CY |
717 | /* The protected block contains wait_for_property_change, which can |
718 | run random lisp code (process handlers) or signal. Therefore, we | |
719 | put the x_uncatch_errors call in an unwind. */ | |
720 | record_unwind_protect (x_catch_errors_unwind, Qnil); | |
9ba8e10d | 721 | x_catch_errors (display); |
ede4db72 | 722 | |
9c3ad9e1 JD |
723 | #ifdef TRACE_SELECTION |
724 | { | |
725 | static int cnt; | |
726 | char *sel = XGetAtomName (display, reply.selection); | |
727 | char *tgt = XGetAtomName (display, reply.target); | |
728 | TRACE3 ("%s, target %s (%d)", sel, tgt, ++cnt); | |
729 | if (sel) XFree (sel); | |
730 | if (tgt) XFree (tgt); | |
731 | } | |
732 | #endif /* TRACE_SELECTION */ | |
733 | ||
ede4db72 RS |
734 | /* Store the data on the requested property. |
735 | If the selection is large, only store the first N bytes of it. | |
736 | */ | |
737 | bytes_remaining = size * format_bytes; | |
738 | if (bytes_remaining <= max_bytes) | |
739 | { | |
740 | /* Send all the data at once, with minimal handshaking. */ | |
d9c0d4a3 | 741 | TRACE1 ("Sending all %d bytes", bytes_remaining); |
ede4db72 RS |
742 | XChangeProperty (display, window, reply.property, type, format, |
743 | PropModeReplace, data, size); | |
744 | /* At this point, the selection was successfully stored; ack it. */ | |
2f65feb6 | 745 | XSendEvent (display, window, False, 0L, (XEvent *) &reply); |
ede4db72 RS |
746 | } |
747 | else | |
748 | { | |
749 | /* Send an INCR selection. */ | |
d1f21a66 | 750 | struct prop_location *wait_object; |
afe1529d | 751 | int had_errors; |
55b2d45d | 752 | Lisp_Object frame; |
ede4db72 | 753 | |
55b2d45d RS |
754 | frame = some_frame_on_display (dpyinfo); |
755 | ||
756 | /* If the display no longer has frames, we can't expect | |
757 | to get many more selection requests from it, so don't | |
758 | bother trying to queue them. */ | |
759 | if (!NILP (frame)) | |
760 | { | |
dd0fe424 | 761 | x_start_queuing_selection_requests (); |
55b2d45d RS |
762 | |
763 | record_unwind_protect (queue_selection_requests_unwind, | |
dd0fe424 | 764 | Qnil); |
55b2d45d | 765 | } |
2f65feb6 | 766 | |
19126e11 | 767 | if (x_window_to_frame (dpyinfo, window)) /* #### debug */ |
606140dd | 768 | error ("Attempt to transfer an INCR to ourself!"); |
1b65481e | 769 | |
d9c0d4a3 GM |
770 | TRACE2 ("Start sending %d bytes incrementally (%s)", |
771 | bytes_remaining, XGetAtomName (display, reply.property)); | |
d1f21a66 RS |
772 | wait_object = expect_property_change (display, window, reply.property, |
773 | PropertyDelete); | |
ede4db72 | 774 | |
d9c0d4a3 GM |
775 | TRACE1 ("Set %s to number of bytes to send", |
776 | XGetAtomName (display, reply.property)); | |
e22cf39c JD |
777 | { |
778 | /* XChangeProperty expects an array of long even if long is more than | |
779 | 32 bits. */ | |
780 | long value[1]; | |
781 | ||
782 | value[0] = bytes_remaining; | |
783 | XChangeProperty (display, window, reply.property, dpyinfo->Xatom_INCR, | |
784 | 32, PropModeReplace, | |
785 | (unsigned char *) value, 1); | |
786 | } | |
787 | ||
ede4db72 | 788 | XSelectInput (display, window, PropertyChangeMask); |
1b65481e | 789 | |
ede4db72 | 790 | /* Tell 'em the INCR data is there... */ |
d9c0d4a3 | 791 | TRACE0 ("Send SelectionNotify event"); |
55b2d45d | 792 | XSendEvent (display, window, False, 0L, (XEvent *) &reply); |
5c3a351a | 793 | XFlush (display); |
afe1529d RS |
794 | |
795 | had_errors = x_had_errors_p (display); | |
2f65feb6 | 796 | UNBLOCK_INPUT; |
ede4db72 | 797 | |
2a1a4c9d | 798 | /* First, wait for the requester to ack by deleting the property. |
ede4db72 | 799 | This can run random lisp code (process handlers) or signal. */ |
afe1529d | 800 | if (! had_errors) |
d9c0d4a3 GM |
801 | { |
802 | TRACE1 ("Waiting for ACK (deletion of %s)", | |
803 | XGetAtomName (display, reply.property)); | |
804 | wait_for_property_change (wait_object); | |
805 | } | |
dd0fe424 KS |
806 | else |
807 | unexpect_property_change (wait_object); | |
ede4db72 | 808 | |
d9c0d4a3 | 809 | TRACE0 ("Got ACK"); |
ede4db72 RS |
810 | while (bytes_remaining) |
811 | { | |
e22cf39c JD |
812 | int i = ((bytes_remaining < max_bytes) |
813 | ? bytes_remaining | |
814 | : max_bytes); | |
2f65feb6 RS |
815 | |
816 | BLOCK_INPUT; | |
817 | ||
d1f21a66 RS |
818 | wait_object |
819 | = expect_property_change (display, window, reply.property, | |
820 | PropertyDelete); | |
d9c0d4a3 GM |
821 | |
822 | TRACE1 ("Sending increment of %d bytes", i); | |
823 | TRACE1 ("Set %s to increment data", | |
824 | XGetAtomName (display, reply.property)); | |
1b65481e | 825 | |
ede4db72 RS |
826 | /* Append the next chunk of data to the property. */ |
827 | XChangeProperty (display, window, reply.property, type, format, | |
828 | PropModeAppend, data, i / format_bytes); | |
829 | bytes_remaining -= i; | |
830 | data += i; | |
5c3a351a | 831 | XFlush (display); |
afe1529d | 832 | had_errors = x_had_errors_p (display); |
2f65feb6 | 833 | UNBLOCK_INPUT; |
ede4db72 | 834 | |
afe1529d RS |
835 | if (had_errors) |
836 | break; | |
837 | ||
2a1a4c9d | 838 | /* Now wait for the requester to ack this chunk by deleting the |
d9c0d4a3 GM |
839 | property. This can run random lisp code or signal. */ |
840 | TRACE1 ("Waiting for increment ACK (deletion of %s)", | |
841 | XGetAtomName (display, reply.property)); | |
d1f21a66 | 842 | wait_for_property_change (wait_object); |
ede4db72 | 843 | } |
1b65481e | 844 | |
d9c0d4a3 GM |
845 | /* Now write a zero-length chunk to the property to tell the |
846 | requester that we're done. */ | |
2f65feb6 | 847 | BLOCK_INPUT; |
ede4db72 RS |
848 | if (! waiting_for_other_props_on_window (display, window)) |
849 | XSelectInput (display, window, 0L); | |
850 | ||
d9c0d4a3 GM |
851 | TRACE1 ("Set %s to a 0-length chunk to indicate EOF", |
852 | XGetAtomName (display, reply.property)); | |
ede4db72 RS |
853 | XChangeProperty (display, window, reply.property, type, format, |
854 | PropModeReplace, data, 0); | |
d9c0d4a3 | 855 | TRACE0 ("Done sending incrementally"); |
ede4db72 | 856 | } |
afe1529d | 857 | |
ceabd272 | 858 | /* rms, 2003-01-03: I think I have fixed this bug. */ |
47a6ac17 GM |
859 | /* The window we're communicating with may have been deleted |
860 | in the meantime (that's a real situation from a bug report). | |
861 | In this case, there may be events in the event queue still | |
862 | refering to the deleted window, and we'll get a BadWindow error | |
863 | in XTread_socket when processing the events. I don't have | |
864 | an idea how to fix that. gerd, 2001-01-98. */ | |
844fc085 JD |
865 | /* 2004-09-10: XSync and UNBLOCK so that possible protocol errors are |
866 | delivered before uncatch errors. */ | |
867 | XSync (display, False); | |
afe1529d | 868 | UNBLOCK_INPUT; |
0608b1a0 JD |
869 | |
870 | /* GTK queues events in addition to the queue in Xlib. So we | |
871 | UNBLOCK to enter the event loop and get possible errors delivered, | |
872 | and then BLOCK again because x_uncatch_errors requires it. */ | |
873 | BLOCK_INPUT; | |
c525d842 | 874 | /* This calls x_uncatch_errors. */ |
9ba8e10d | 875 | unbind_to (count, Qnil); |
0608b1a0 | 876 | UNBLOCK_INPUT; |
ede4db72 RS |
877 | } |
878 | \f | |
879 | /* Handle a SelectionRequest event EVENT. | |
880 | This is called from keyboard.c when such an event is found in the queue. */ | |
881 | ||
dd0fe424 | 882 | static void |
ede4db72 RS |
883 | x_handle_selection_request (event) |
884 | struct input_event *event; | |
885 | { | |
886 | struct gcpro gcpro1, gcpro2, gcpro3; | |
9d2d1dd8 | 887 | Lisp_Object local_selection_data; |
ede4db72 | 888 | Lisp_Object selection_symbol; |
9d2d1dd8 KH |
889 | Lisp_Object target_symbol; |
890 | Lisp_Object converted_selection; | |
ede4db72 | 891 | Time local_selection_time; |
9d2d1dd8 | 892 | Lisp_Object successful_p; |
ede4db72 | 893 | int count; |
5c3a351a RS |
894 | struct x_display_info *dpyinfo |
895 | = x_display_info_for_display (SELECTION_EVENT_DISPLAY (event)); | |
ede4db72 | 896 | |
678b3958 KS |
897 | TRACE2 ("x_handle_selection_request, from=0x%08lx time=%lu", |
898 | (unsigned long) SELECTION_EVENT_REQUESTOR (event), | |
899 | (unsigned long) SELECTION_EVENT_TIME (event)); | |
dd0fe424 | 900 | |
9d2d1dd8 KH |
901 | local_selection_data = Qnil; |
902 | target_symbol = Qnil; | |
903 | converted_selection = Qnil; | |
904 | successful_p = Qnil; | |
905 | ||
ede4db72 RS |
906 | GCPRO3 (local_selection_data, converted_selection, target_symbol); |
907 | ||
d9c0d4a3 | 908 | selection_symbol = x_atom_to_symbol (SELECTION_EVENT_DISPLAY (event), |
ede4db72 RS |
909 | SELECTION_EVENT_SELECTION (event)); |
910 | ||
911 | local_selection_data = assq_no_quit (selection_symbol, Vselection_alist); | |
ede4db72 RS |
912 | |
913 | if (NILP (local_selection_data)) | |
914 | { | |
915 | /* Someone asked for the selection, but we don't have it any more. | |
916 | */ | |
917 | x_decline_selection_request (event); | |
918 | goto DONE; | |
919 | } | |
920 | ||
921 | local_selection_time = (Time) | |
8e713be6 | 922 | cons_to_long (XCAR (XCDR (XCDR (local_selection_data)))); |
ede4db72 RS |
923 | |
924 | if (SELECTION_EVENT_TIME (event) != CurrentTime | |
7da64e5c | 925 | && local_selection_time > SELECTION_EVENT_TIME (event)) |
ede4db72 RS |
926 | { |
927 | /* Someone asked for the selection, and we have one, but not the one | |
928 | they're looking for. | |
929 | */ | |
930 | x_decline_selection_request (event); | |
931 | goto DONE; | |
932 | } | |
933 | ||
ede4db72 | 934 | x_selection_current_request = event; |
331379bf | 935 | count = SPECPDL_INDEX (); |
ca29f2b8 | 936 | selection_request_dpyinfo = dpyinfo; |
ede4db72 RS |
937 | record_unwind_protect (x_selection_request_lisp_error, Qnil); |
938 | ||
d9c0d4a3 | 939 | target_symbol = x_atom_to_symbol (SELECTION_EVENT_DISPLAY (event), |
ede4db72 RS |
940 | SELECTION_EVENT_TARGET (event)); |
941 | ||
942 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
943 | if (EQ (target_symbol, QMULTIPLE)) | |
944 | target_symbol = fetch_multiple_target (event); | |
945 | #endif | |
1b65481e | 946 | |
ede4db72 | 947 | /* Convert lisp objects back into binary data */ |
1b65481e | 948 | |
ede4db72 | 949 | converted_selection |
5109c8dd | 950 | = x_get_local_selection (selection_symbol, target_symbol, 0); |
1b65481e | 951 | |
ede4db72 RS |
952 | if (! NILP (converted_selection)) |
953 | { | |
954 | unsigned char *data; | |
955 | unsigned int size; | |
956 | int format; | |
957 | Atom type; | |
aca39f42 RS |
958 | int nofree; |
959 | ||
2f65feb6 RS |
960 | lisp_data_to_selection_data (SELECTION_EVENT_DISPLAY (event), |
961 | converted_selection, | |
aca39f42 | 962 | &data, &type, &size, &format, &nofree); |
1b65481e | 963 | |
ede4db72 RS |
964 | x_reply_selection_request (event, format, data, size, type); |
965 | successful_p = Qt; | |
966 | ||
967 | /* Indicate we have successfully processed this event. */ | |
7da64e5c | 968 | x_selection_current_request = 0; |
ede4db72 | 969 | |
4feb31b2 | 970 | /* Use xfree, not XFree, because lisp_data_to_selection_data |
0158abbc | 971 | calls xmalloc itself. */ |
aca39f42 | 972 | if (!nofree) |
4feb31b2 | 973 | xfree (data); |
ede4db72 RS |
974 | } |
975 | unbind_to (count, Qnil); | |
976 | ||
977 | DONE: | |
978 | ||
ede4db72 RS |
979 | /* Let random lisp code notice that the selection has been asked for. */ |
980 | { | |
9d2d1dd8 | 981 | Lisp_Object rest; |
c917a8de | 982 | rest = Vx_sent_selection_functions; |
ede4db72 RS |
983 | if (!EQ (rest, Qunbound)) |
984 | for (; CONSP (rest); rest = Fcdr (rest)) | |
985 | call3 (Fcar (rest), selection_symbol, target_symbol, successful_p); | |
986 | } | |
4f06187f RS |
987 | |
988 | UNGCPRO; | |
ede4db72 RS |
989 | } |
990 | \f | |
e18e6130 | 991 | /* Handle a SelectionClear event EVENT, which indicates that some |
ede4db72 RS |
992 | client cleared out our previously asserted selection. |
993 | This is called from keyboard.c when such an event is found in the queue. */ | |
994 | ||
dd0fe424 | 995 | static void |
ede4db72 RS |
996 | x_handle_selection_clear (event) |
997 | struct input_event *event; | |
998 | { | |
999 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
1000 | Atom selection = SELECTION_EVENT_SELECTION (event); | |
1001 | Time changed_owner_time = SELECTION_EVENT_TIME (event); | |
1b65481e | 1002 | |
ede4db72 RS |
1003 | Lisp_Object selection_symbol, local_selection_data; |
1004 | Time local_selection_time; | |
5c3a351a | 1005 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
e18e6130 RS |
1006 | struct x_display_info *t_dpyinfo; |
1007 | ||
dd0fe424 KS |
1008 | TRACE0 ("x_handle_selection_clear"); |
1009 | ||
e18e6130 RS |
1010 | /* If the new selection owner is also Emacs, |
1011 | don't clear the new selection. */ | |
1012 | BLOCK_INPUT; | |
1013 | /* Check each display on the same terminal, | |
1014 | to see if this Emacs job now owns the selection | |
1015 | through that display. */ | |
1016 | for (t_dpyinfo = x_display_list; t_dpyinfo; t_dpyinfo = t_dpyinfo->next) | |
1017 | if (t_dpyinfo->kboard == dpyinfo->kboard) | |
1018 | { | |
1019 | Window owner_window | |
1020 | = XGetSelectionOwner (t_dpyinfo->display, selection); | |
1021 | if (x_window_to_frame (t_dpyinfo, owner_window) != 0) | |
1022 | { | |
1023 | UNBLOCK_INPUT; | |
1024 | return; | |
1025 | } | |
1026 | } | |
1027 | UNBLOCK_INPUT; | |
ede4db72 | 1028 | |
d9c0d4a3 | 1029 | selection_symbol = x_atom_to_symbol (display, selection); |
ede4db72 RS |
1030 | |
1031 | local_selection_data = assq_no_quit (selection_symbol, Vselection_alist); | |
1032 | ||
1033 | /* Well, we already believe that we don't own it, so that's just fine. */ | |
1034 | if (NILP (local_selection_data)) return; | |
1035 | ||
1036 | local_selection_time = (Time) | |
8e713be6 | 1037 | cons_to_long (XCAR (XCDR (XCDR (local_selection_data)))); |
ede4db72 RS |
1038 | |
1039 | /* This SelectionClear is for a selection that we no longer own, so we can | |
1040 | disregard it. (That is, we have reasserted the selection since this | |
1041 | request was generated.) */ | |
1042 | ||
1043 | if (changed_owner_time != CurrentTime | |
1044 | && local_selection_time > changed_owner_time) | |
1045 | return; | |
1046 | ||
1047 | /* Otherwise, we're really honest and truly being told to drop it. | |
1048 | Don't use Fdelq as that may QUIT;. */ | |
1049 | ||
1050 | if (EQ (local_selection_data, Fcar (Vselection_alist))) | |
1051 | Vselection_alist = Fcdr (Vselection_alist); | |
1052 | else | |
1053 | { | |
1054 | Lisp_Object rest; | |
1055 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) | |
8e713be6 | 1056 | if (EQ (local_selection_data, Fcar (XCDR (rest)))) |
ede4db72 | 1057 | { |
f3fbd155 | 1058 | XSETCDR (rest, Fcdr (XCDR (rest))); |
ede4db72 RS |
1059 | break; |
1060 | } | |
1061 | } | |
1062 | ||
1063 | /* Let random lisp code notice that the selection has been stolen. */ | |
1064 | ||
1065 | { | |
d1f21a66 | 1066 | Lisp_Object rest; |
c917a8de | 1067 | rest = Vx_lost_selection_functions; |
ede4db72 | 1068 | if (!EQ (rest, Qunbound)) |
d1f21a66 RS |
1069 | { |
1070 | for (; CONSP (rest); rest = Fcdr (rest)) | |
1071 | call1 (Fcar (rest), selection_symbol); | |
7c6b2ea4 | 1072 | prepare_menu_bars (); |
3007ebfb | 1073 | redisplay_preserve_echo_area (20); |
d1f21a66 | 1074 | } |
ede4db72 RS |
1075 | } |
1076 | } | |
1077 | ||
dd0fe424 KS |
1078 | void |
1079 | x_handle_selection_event (event) | |
1080 | struct input_event *event; | |
1081 | { | |
1082 | TRACE0 ("x_handle_selection_event"); | |
1083 | ||
1084 | if (event->kind == SELECTION_REQUEST_EVENT) | |
1085 | { | |
1086 | if (x_queue_selection_requests) | |
1087 | x_queue_event (event); | |
1088 | else | |
1089 | x_handle_selection_request (event); | |
1090 | } | |
1091 | else | |
1092 | x_handle_selection_clear (event); | |
1093 | } | |
1094 | ||
1095 | ||
118bd841 RS |
1096 | /* Clear all selections that were made from frame F. |
1097 | We do this when about to delete a frame. */ | |
1098 | ||
1099 | void | |
1100 | x_clear_frame_selections (f) | |
1101 | FRAME_PTR f; | |
1102 | { | |
1103 | Lisp_Object frame; | |
1104 | Lisp_Object rest; | |
1105 | ||
90851bbe | 1106 | XSETFRAME (frame, f); |
118bd841 RS |
1107 | |
1108 | /* Otherwise, we're really honest and truly being told to drop it. | |
1109 | Don't use Fdelq as that may QUIT;. */ | |
1110 | ||
0d199f9c RS |
1111 | /* Delete elements from the beginning of Vselection_alist. */ |
1112 | while (!NILP (Vselection_alist) | |
1113 | && EQ (frame, Fcar (Fcdr (Fcdr (Fcdr (Fcar (Vselection_alist))))))) | |
1114 | { | |
1115 | /* Let random Lisp code notice that the selection has been stolen. */ | |
1116 | Lisp_Object hooks, selection_symbol; | |
1117 | ||
c917a8de | 1118 | hooks = Vx_lost_selection_functions; |
0d199f9c RS |
1119 | selection_symbol = Fcar (Fcar (Vselection_alist)); |
1120 | ||
1121 | if (!EQ (hooks, Qunbound)) | |
1122 | { | |
1123 | for (; CONSP (hooks); hooks = Fcdr (hooks)) | |
1124 | call1 (Fcar (hooks), selection_symbol); | |
996b804d MB |
1125 | #if 0 /* This can crash when deleting a frame |
1126 | from x_connection_closed. Anyway, it seems unnecessary; | |
1127 | something else should cause a redisplay. */ | |
3007ebfb | 1128 | redisplay_preserve_echo_area (21); |
996b804d | 1129 | #endif |
0d199f9c RS |
1130 | } |
1131 | ||
1132 | Vselection_alist = Fcdr (Vselection_alist); | |
1133 | } | |
1134 | ||
1135 | /* Delete elements after the beginning of Vselection_alist. */ | |
118bd841 | 1136 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) |
8e713be6 | 1137 | if (EQ (frame, Fcar (Fcdr (Fcdr (Fcdr (Fcar (XCDR (rest)))))))) |
118bd841 RS |
1138 | { |
1139 | /* Let random Lisp code notice that the selection has been stolen. */ | |
1140 | Lisp_Object hooks, selection_symbol; | |
1141 | ||
c917a8de | 1142 | hooks = Vx_lost_selection_functions; |
8e713be6 | 1143 | selection_symbol = Fcar (Fcar (XCDR (rest))); |
118bd841 RS |
1144 | |
1145 | if (!EQ (hooks, Qunbound)) | |
1146 | { | |
1147 | for (; CONSP (hooks); hooks = Fcdr (hooks)) | |
1148 | call1 (Fcar (hooks), selection_symbol); | |
996b804d | 1149 | #if 0 /* See above */ |
3007ebfb | 1150 | redisplay_preserve_echo_area (22); |
996b804d | 1151 | #endif |
118bd841 | 1152 | } |
f3fbd155 | 1153 | XSETCDR (rest, Fcdr (XCDR (rest))); |
118bd841 RS |
1154 | break; |
1155 | } | |
1156 | } | |
ede4db72 | 1157 | \f |
ede4db72 RS |
1158 | /* Nonzero if any properties for DISPLAY and WINDOW |
1159 | are on the list of what we are waiting for. */ | |
1160 | ||
1161 | static int | |
1162 | waiting_for_other_props_on_window (display, window) | |
1163 | Display *display; | |
1164 | Window window; | |
1165 | { | |
1166 | struct prop_location *rest = property_change_wait_list; | |
1167 | while (rest) | |
1168 | if (rest->display == display && rest->window == window) | |
1169 | return 1; | |
1170 | else | |
1171 | rest = rest->next; | |
1172 | return 0; | |
1173 | } | |
1174 | ||
1175 | /* Add an entry to the list of property changes we are waiting for. | |
1176 | DISPLAY, WINDOW, PROPERTY, STATE describe what we will wait for. | |
1177 | The return value is a number that uniquely identifies | |
1178 | this awaited property change. */ | |
1179 | ||
d1f21a66 | 1180 | static struct prop_location * |
ede4db72 RS |
1181 | expect_property_change (display, window, property, state) |
1182 | Display *display; | |
1183 | Window window; | |
6c070502 | 1184 | Atom property; |
ede4db72 RS |
1185 | int state; |
1186 | { | |
d9c0d4a3 | 1187 | struct prop_location *pl = (struct prop_location *) xmalloc (sizeof *pl); |
2f65feb6 | 1188 | pl->identifier = ++prop_location_identifier; |
ede4db72 RS |
1189 | pl->display = display; |
1190 | pl->window = window; | |
1191 | pl->property = property; | |
1192 | pl->desired_state = state; | |
1193 | pl->next = property_change_wait_list; | |
d1f21a66 | 1194 | pl->arrived = 0; |
ede4db72 | 1195 | property_change_wait_list = pl; |
d1f21a66 | 1196 | return pl; |
ede4db72 RS |
1197 | } |
1198 | ||
1199 | /* Delete an entry from the list of property changes we are waiting for. | |
2f65feb6 | 1200 | IDENTIFIER is the number that uniquely identifies the entry. */ |
ede4db72 RS |
1201 | |
1202 | static void | |
d1f21a66 RS |
1203 | unexpect_property_change (location) |
1204 | struct prop_location *location; | |
ede4db72 RS |
1205 | { |
1206 | struct prop_location *prev = 0, *rest = property_change_wait_list; | |
1207 | while (rest) | |
1208 | { | |
d1f21a66 | 1209 | if (rest == location) |
ede4db72 RS |
1210 | { |
1211 | if (prev) | |
1212 | prev->next = rest->next; | |
1213 | else | |
1214 | property_change_wait_list = rest->next; | |
4feb31b2 | 1215 | xfree (rest); |
ede4db72 RS |
1216 | return; |
1217 | } | |
1218 | prev = rest; | |
1219 | rest = rest->next; | |
1220 | } | |
1221 | } | |
1222 | ||
2f65feb6 RS |
1223 | /* Remove the property change expectation element for IDENTIFIER. */ |
1224 | ||
1225 | static Lisp_Object | |
dd0fe424 KS |
1226 | wait_for_property_change_unwind (loc) |
1227 | Lisp_Object loc; | |
2f65feb6 | 1228 | { |
dd0fe424 KS |
1229 | struct prop_location *location = XSAVE_VALUE (loc)->pointer; |
1230 | ||
1231 | unexpect_property_change (location); | |
1232 | if (location == property_change_reply_object) | |
1233 | property_change_reply_object = 0; | |
ab552306 | 1234 | return Qnil; |
2f65feb6 RS |
1235 | } |
1236 | ||
ede4db72 | 1237 | /* Actually wait for a property change. |
2f65feb6 | 1238 | IDENTIFIER should be the value that expect_property_change returned. */ |
ede4db72 RS |
1239 | |
1240 | static void | |
d1f21a66 RS |
1241 | wait_for_property_change (location) |
1242 | struct prop_location *location; | |
ede4db72 | 1243 | { |
2f65feb6 | 1244 | int secs, usecs; |
aed13378 | 1245 | int count = SPECPDL_INDEX (); |
d1f21a66 | 1246 | |
dd0fe424 KS |
1247 | if (property_change_reply_object) |
1248 | abort (); | |
2f65feb6 RS |
1249 | |
1250 | /* Make sure to do unexpect_property_change if we quit or err. */ | |
dd0fe424 KS |
1251 | record_unwind_protect (wait_for_property_change_unwind, |
1252 | make_save_value (location, 0)); | |
2f65feb6 | 1253 | |
f3fbd155 | 1254 | XSETCAR (property_change_reply, Qnil); |
afe1529d | 1255 | property_change_reply_object = location; |
dd0fe424 | 1256 | |
afe1529d RS |
1257 | /* If the event we are waiting for arrives beyond here, it will set |
1258 | property_change_reply, because property_change_reply_object says so. */ | |
d1f21a66 RS |
1259 | if (! location->arrived) |
1260 | { | |
d1f21a66 RS |
1261 | secs = x_selection_timeout / 1000; |
1262 | usecs = (x_selection_timeout % 1000) * 1000; | |
d9c0d4a3 | 1263 | TRACE2 (" Waiting %d secs, %d usecs", secs, usecs); |
d64b707c KS |
1264 | wait_reading_process_output (secs, usecs, 0, 0, |
1265 | property_change_reply, NULL, 0); | |
d1f21a66 | 1266 | |
8e713be6 | 1267 | if (NILP (XCAR (property_change_reply))) |
d9c0d4a3 GM |
1268 | { |
1269 | TRACE0 (" Timed out"); | |
1270 | error ("Timed out waiting for property-notify event"); | |
1271 | } | |
d1f21a66 | 1272 | } |
2f65feb6 RS |
1273 | |
1274 | unbind_to (count, Qnil); | |
ede4db72 RS |
1275 | } |
1276 | ||
1277 | /* Called from XTread_socket in response to a PropertyNotify event. */ | |
1278 | ||
1279 | void | |
1280 | x_handle_property_notify (event) | |
1281 | XPropertyEvent *event; | |
1282 | { | |
1283 | struct prop_location *prev = 0, *rest = property_change_wait_list; | |
d9c0d4a3 | 1284 | |
ede4db72 RS |
1285 | while (rest) |
1286 | { | |
dd0fe424 KS |
1287 | if (!rest->arrived |
1288 | && rest->property == event->atom | |
ede4db72 RS |
1289 | && rest->window == event->window |
1290 | && rest->display == event->display | |
1291 | && rest->desired_state == event->state) | |
1292 | { | |
d9c0d4a3 GM |
1293 | TRACE2 ("Expected %s of property %s", |
1294 | (event->state == PropertyDelete ? "deletion" : "change"), | |
1295 | XGetAtomName (event->display, event->atom)); | |
ede4db72 | 1296 | |
d1f21a66 RS |
1297 | rest->arrived = 1; |
1298 | ||
ede4db72 RS |
1299 | /* If this is the one wait_for_property_change is waiting for, |
1300 | tell it to wake up. */ | |
d1f21a66 | 1301 | if (rest == property_change_reply_object) |
f3fbd155 | 1302 | XSETCAR (property_change_reply, Qt); |
ede4db72 | 1303 | |
ede4db72 RS |
1304 | return; |
1305 | } | |
1b65481e | 1306 | |
ede4db72 RS |
1307 | prev = rest; |
1308 | rest = rest->next; | |
1309 | } | |
ede4db72 RS |
1310 | } |
1311 | ||
1312 | ||
1313 | \f | |
1314 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1315 | ||
1316 | static Lisp_Object | |
1317 | fetch_multiple_target (event) | |
1318 | XSelectionRequestEvent *event; | |
1319 | { | |
1320 | Display *display = event->display; | |
5d0ba25b | 1321 | Window window = event->requestor; |
ede4db72 RS |
1322 | Atom target = event->target; |
1323 | Atom selection_atom = event->selection; | |
1324 | int result; | |
1325 | ||
1326 | return | |
1327 | Fcons (QMULTIPLE, | |
1328 | x_get_window_property_as_lisp_data (display, window, target, | |
1329 | QMULTIPLE, selection_atom)); | |
1330 | } | |
1331 | ||
1332 | static Lisp_Object | |
1333 | copy_multiple_data (obj) | |
1334 | Lisp_Object obj; | |
1335 | { | |
1336 | Lisp_Object vec; | |
1337 | int i; | |
1338 | int size; | |
1339 | if (CONSP (obj)) | |
8e713be6 | 1340 | return Fcons (XCAR (obj), copy_multiple_data (XCDR (obj))); |
1b65481e | 1341 | |
b7826503 | 1342 | CHECK_VECTOR (obj); |
ede4db72 RS |
1343 | vec = Fmake_vector (size = XVECTOR (obj)->size, Qnil); |
1344 | for (i = 0; i < size; i++) | |
1345 | { | |
1346 | Lisp_Object vec2 = XVECTOR (obj)->contents [i]; | |
b7826503 | 1347 | CHECK_VECTOR (vec2); |
ede4db72 RS |
1348 | if (XVECTOR (vec2)->size != 2) |
1349 | /* ??? Confusing error message */ | |
1350 | Fsignal (Qerror, Fcons (build_string ("vectors must be of length 2"), | |
1351 | Fcons (vec2, Qnil))); | |
1352 | XVECTOR (vec)->contents [i] = Fmake_vector (2, Qnil); | |
1353 | XVECTOR (XVECTOR (vec)->contents [i])->contents [0] | |
1354 | = XVECTOR (vec2)->contents [0]; | |
1355 | XVECTOR (XVECTOR (vec)->contents [i])->contents [1] | |
1356 | = XVECTOR (vec2)->contents [1]; | |
1357 | } | |
1358 | return vec; | |
1359 | } | |
1360 | ||
1361 | #endif | |
1362 | ||
1363 | \f | |
1364 | /* Variables for communication with x_handle_selection_notify. */ | |
1365 | static Atom reading_which_selection; | |
1366 | static Lisp_Object reading_selection_reply; | |
1367 | static Window reading_selection_window; | |
1368 | ||
1369 | /* Do protocol to read selection-data from the server. | |
1370 | Converts this to Lisp data and returns it. */ | |
1371 | ||
1372 | static Lisp_Object | |
3a42401d JD |
1373 | x_get_foreign_selection (selection_symbol, target_type, time_stamp) |
1374 | Lisp_Object selection_symbol, target_type, time_stamp; | |
ede4db72 | 1375 | { |
378c33ca GM |
1376 | struct frame *sf = SELECTED_FRAME (); |
1377 | Window requestor_window = FRAME_X_WINDOW (sf); | |
1378 | Display *display = FRAME_X_DISPLAY (sf); | |
1379 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
5d0ba25b | 1380 | Time requestor_time = last_event_timestamp; |
5c3a351a RS |
1381 | Atom target_property = dpyinfo->Xatom_EMACS_TMP; |
1382 | Atom selection_atom = symbol_to_x_atom (dpyinfo, display, selection_symbol); | |
ede4db72 | 1383 | Atom type_atom; |
80da0190 | 1384 | int secs, usecs; |
c525d842 | 1385 | int count = SPECPDL_INDEX (); |
55b2d45d | 1386 | Lisp_Object frame; |
ede4db72 RS |
1387 | |
1388 | if (CONSP (target_type)) | |
8e713be6 | 1389 | type_atom = symbol_to_x_atom (dpyinfo, display, XCAR (target_type)); |
ede4db72 | 1390 | else |
5c3a351a | 1391 | type_atom = symbol_to_x_atom (dpyinfo, display, target_type); |
ede4db72 | 1392 | |
3a42401d JD |
1393 | if (! NILP (time_stamp)) |
1394 | { | |
1395 | if (CONSP (time_stamp)) | |
1396 | requestor_time = (Time) cons_to_long (time_stamp); | |
1397 | else if (INTEGERP (time_stamp)) | |
1398 | requestor_time = (Time) XUINT (time_stamp); | |
1399 | else if (FLOATP (time_stamp)) | |
ff59904a | 1400 | requestor_time = (Time) XFLOAT_DATA (time_stamp); |
3a42401d JD |
1401 | else |
1402 | error ("TIME_STAMP must be cons or number"); | |
1403 | } | |
1404 | ||
ede4db72 | 1405 | BLOCK_INPUT; |
1b65481e | 1406 | |
c525d842 CY |
1407 | /* The protected block contains wait_reading_process_output, which |
1408 | can run random lisp code (process handlers) or signal. | |
1409 | Therefore, we put the x_uncatch_errors call in an unwind. */ | |
1410 | record_unwind_protect (x_catch_errors_unwind, Qnil); | |
9ba8e10d | 1411 | x_catch_errors (display); |
1b65481e | 1412 | |
d9c0d4a3 GM |
1413 | TRACE2 ("Get selection %s, type %s", |
1414 | XGetAtomName (display, type_atom), | |
1415 | XGetAtomName (display, target_property)); | |
1416 | ||
ede4db72 | 1417 | XConvertSelection (display, selection_atom, type_atom, target_property, |
5d0ba25b | 1418 | requestor_window, requestor_time); |
5c3a351a | 1419 | XFlush (display); |
ede4db72 RS |
1420 | |
1421 | /* Prepare to block until the reply has been read. */ | |
5d0ba25b | 1422 | reading_selection_window = requestor_window; |
ede4db72 | 1423 | reading_which_selection = selection_atom; |
f3fbd155 | 1424 | XSETCAR (reading_selection_reply, Qnil); |
55b2d45d RS |
1425 | |
1426 | frame = some_frame_on_display (dpyinfo); | |
1427 | ||
1428 | /* If the display no longer has frames, we can't expect | |
1429 | to get many more selection requests from it, so don't | |
1430 | bother trying to queue them. */ | |
1431 | if (!NILP (frame)) | |
1432 | { | |
dd0fe424 | 1433 | x_start_queuing_selection_requests (); |
55b2d45d RS |
1434 | |
1435 | record_unwind_protect (queue_selection_requests_unwind, | |
dd0fe424 | 1436 | Qnil); |
55b2d45d | 1437 | } |
ede4db72 RS |
1438 | UNBLOCK_INPUT; |
1439 | ||
80da0190 RS |
1440 | /* This allows quits. Also, don't wait forever. */ |
1441 | secs = x_selection_timeout / 1000; | |
1442 | usecs = (x_selection_timeout % 1000) * 1000; | |
d9c0d4a3 | 1443 | TRACE1 (" Start waiting %d secs for SelectionNotify", secs); |
d64b707c KS |
1444 | wait_reading_process_output (secs, usecs, 0, 0, |
1445 | reading_selection_reply, NULL, 0); | |
d9c0d4a3 | 1446 | TRACE1 (" Got event = %d", !NILP (XCAR (reading_selection_reply))); |
ede4db72 | 1447 | |
7c6b2ea4 | 1448 | BLOCK_INPUT; |
c525d842 CY |
1449 | if (x_had_errors_p (display)) |
1450 | error ("Cannot get selection"); | |
1451 | /* This calls x_uncatch_errors. */ | |
9ba8e10d | 1452 | unbind_to (count, Qnil); |
7c6b2ea4 RS |
1453 | UNBLOCK_INPUT; |
1454 | ||
8e713be6 | 1455 | if (NILP (XCAR (reading_selection_reply))) |
606140dd | 1456 | error ("Timed out waiting for reply from selection owner"); |
8e713be6 | 1457 | if (EQ (XCAR (reading_selection_reply), Qlambda)) |
d5db4077 | 1458 | error ("No `%s' selection", SDATA (SYMBOL_NAME (selection_symbol))); |
ede4db72 RS |
1459 | |
1460 | /* Otherwise, the selection is waiting for us on the requested property. */ | |
1461 | return | |
5d0ba25b | 1462 | x_get_window_property_as_lisp_data (display, requestor_window, |
ede4db72 RS |
1463 | target_property, target_type, |
1464 | selection_atom); | |
1465 | } | |
1466 | \f | |
1467 | /* Subroutines of x_get_window_property_as_lisp_data */ | |
1468 | ||
4feb31b2 | 1469 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1470 | |
ede4db72 RS |
1471 | static void |
1472 | x_get_window_property (display, window, property, data_ret, bytes_ret, | |
1473 | actual_type_ret, actual_format_ret, actual_size_ret, | |
1474 | delete_p) | |
1475 | Display *display; | |
1476 | Window window; | |
1477 | Atom property; | |
1478 | unsigned char **data_ret; | |
1479 | int *bytes_ret; | |
1480 | Atom *actual_type_ret; | |
1481 | int *actual_format_ret; | |
1482 | unsigned long *actual_size_ret; | |
1483 | int delete_p; | |
1484 | { | |
1485 | int total_size; | |
1486 | unsigned long bytes_remaining; | |
1487 | int offset = 0; | |
1488 | unsigned char *tmp_data = 0; | |
1489 | int result; | |
1490 | int buffer_size = SELECTION_QUANTUM (display); | |
1b65481e | 1491 | |
d9c0d4a3 GM |
1492 | if (buffer_size > MAX_SELECTION_QUANTUM) |
1493 | buffer_size = MAX_SELECTION_QUANTUM; | |
1b65481e | 1494 | |
ede4db72 | 1495 | BLOCK_INPUT; |
1b65481e | 1496 | |
ede4db72 RS |
1497 | /* First probe the thing to find out how big it is. */ |
1498 | result = XGetWindowProperty (display, window, property, | |
137edb72 | 1499 | 0L, 0L, False, AnyPropertyType, |
ede4db72 RS |
1500 | actual_type_ret, actual_format_ret, |
1501 | actual_size_ret, | |
1502 | &bytes_remaining, &tmp_data); | |
ede4db72 RS |
1503 | if (result != Success) |
1504 | { | |
2f65feb6 | 1505 | UNBLOCK_INPUT; |
ede4db72 RS |
1506 | *data_ret = 0; |
1507 | *bytes_ret = 0; | |
1508 | return; | |
1509 | } | |
1b65481e | 1510 | |
0158abbc RS |
1511 | /* This was allocated by Xlib, so use XFree. */ |
1512 | XFree ((char *) tmp_data); | |
1b65481e | 1513 | |
ede4db72 RS |
1514 | if (*actual_type_ret == None || *actual_format_ret == 0) |
1515 | { | |
2f65feb6 | 1516 | UNBLOCK_INPUT; |
ede4db72 RS |
1517 | return; |
1518 | } | |
1519 | ||
1520 | total_size = bytes_remaining + 1; | |
1521 | *data_ret = (unsigned char *) xmalloc (total_size); | |
1b65481e | 1522 | |
2a1a4c9d | 1523 | /* Now read, until we've gotten it all. */ |
ede4db72 RS |
1524 | while (bytes_remaining) |
1525 | { | |
d9c0d4a3 | 1526 | #ifdef TRACE_SELECTION |
ede4db72 RS |
1527 | int last = bytes_remaining; |
1528 | #endif | |
1529 | result | |
1530 | = XGetWindowProperty (display, window, property, | |
137edb72 | 1531 | (long)offset/4, (long)buffer_size/4, |
2f65feb6 | 1532 | False, |
ede4db72 RS |
1533 | AnyPropertyType, |
1534 | actual_type_ret, actual_format_ret, | |
1535 | actual_size_ret, &bytes_remaining, &tmp_data); | |
d9c0d4a3 GM |
1536 | |
1537 | TRACE2 ("Read %ld bytes from property %s", | |
1538 | last - bytes_remaining, | |
1539 | XGetAtomName (display, property)); | |
1540 | ||
ede4db72 RS |
1541 | /* If this doesn't return Success at this point, it means that |
1542 | some clod deleted the selection while we were in the midst of | |
d9c0d4a3 GM |
1543 | reading it. Deal with that, I guess.... */ |
1544 | if (result != Success) | |
1545 | break; | |
e22cf39c JD |
1546 | |
1547 | /* The man page for XGetWindowProperty says: | |
1548 | "If the returned format is 32, the returned data is represented | |
1549 | as a long array and should be cast to that type to obtain the | |
1550 | elements." | |
1551 | This applies even if long is more than 32 bits, the X library | |
1552 | converts from 32 bit elements received from the X server to long | |
1553 | and passes the long array to us. Thus, for that case bcopy can not | |
1554 | be used. We convert to a 32 bit type here, because so much code | |
1555 | assume on that. | |
1556 | ||
1557 | The bytes and offsets passed to XGetWindowProperty refers to the | |
1558 | property and those are indeed in 32 bit quantities if format is 32. */ | |
1559 | ||
1560 | if (*actual_format_ret == 32 && *actual_format_ret < BITS_PER_LONG) | |
1561 | { | |
1562 | unsigned long i; | |
1563 | int *idata = (int *) ((*data_ret) + offset); | |
1564 | long *ldata = (long *) tmp_data; | |
1565 | ||
1566 | for (i = 0; i < *actual_size_ret; ++i) | |
1567 | { | |
1568 | idata[i]= (int) ldata[i]; | |
1569 | offset += 4; | |
1570 | } | |
1571 | } | |
1572 | else | |
1573 | { | |
1574 | *actual_size_ret *= *actual_format_ret / 8; | |
1575 | bcopy (tmp_data, (*data_ret) + offset, *actual_size_ret); | |
1576 | offset += *actual_size_ret; | |
1577 | } | |
1b65481e | 1578 | |
0158abbc RS |
1579 | /* This was allocated by Xlib, so use XFree. */ |
1580 | XFree ((char *) tmp_data); | |
ede4db72 | 1581 | } |
2f65feb6 | 1582 | |
5c3a351a | 1583 | XFlush (display); |
ede4db72 RS |
1584 | UNBLOCK_INPUT; |
1585 | *bytes_ret = offset; | |
1586 | } | |
1587 | \f | |
4feb31b2 | 1588 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1589 | |
ede4db72 RS |
1590 | static void |
1591 | receive_incremental_selection (display, window, property, target_type, | |
1592 | min_size_bytes, data_ret, size_bytes_ret, | |
1593 | type_ret, format_ret, size_ret) | |
1594 | Display *display; | |
1595 | Window window; | |
1596 | Atom property; | |
1597 | Lisp_Object target_type; /* for error messages only */ | |
1598 | unsigned int min_size_bytes; | |
1599 | unsigned char **data_ret; | |
1600 | int *size_bytes_ret; | |
1601 | Atom *type_ret; | |
1602 | unsigned long *size_ret; | |
1603 | int *format_ret; | |
1604 | { | |
1605 | int offset = 0; | |
d1f21a66 | 1606 | struct prop_location *wait_object; |
ede4db72 RS |
1607 | *size_bytes_ret = min_size_bytes; |
1608 | *data_ret = (unsigned char *) xmalloc (*size_bytes_ret); | |
d9c0d4a3 GM |
1609 | |
1610 | TRACE1 ("Read %d bytes incrementally", min_size_bytes); | |
2f65feb6 RS |
1611 | |
1612 | /* At this point, we have read an INCR property. | |
1613 | Delete the property to ack it. | |
1614 | (But first, prepare to receive the next event in this handshake.) | |
ede4db72 RS |
1615 | |
1616 | Now, we must loop, waiting for the sending window to put a value on | |
1617 | that property, then reading the property, then deleting it to ack. | |
1618 | We are done when the sender places a property of length 0. | |
1619 | */ | |
2f65feb6 RS |
1620 | BLOCK_INPUT; |
1621 | XSelectInput (display, window, STANDARD_EVENT_SET | PropertyChangeMask); | |
d9c0d4a3 | 1622 | TRACE1 (" Delete property %s", |
dd0fe424 | 1623 | SDATA (SYMBOL_NAME (x_atom_to_symbol (display, property)))); |
2f65feb6 | 1624 | XDeleteProperty (display, window, property); |
d9c0d4a3 | 1625 | TRACE1 (" Expect new value of property %s", |
dd0fe424 | 1626 | SDATA (SYMBOL_NAME (x_atom_to_symbol (display, property)))); |
d1f21a66 RS |
1627 | wait_object = expect_property_change (display, window, property, |
1628 | PropertyNewValue); | |
5c3a351a | 1629 | XFlush (display); |
2f65feb6 RS |
1630 | UNBLOCK_INPUT; |
1631 | ||
ede4db72 RS |
1632 | while (1) |
1633 | { | |
1634 | unsigned char *tmp_data; | |
1635 | int tmp_size_bytes; | |
d9c0d4a3 GM |
1636 | |
1637 | TRACE0 (" Wait for property change"); | |
d1f21a66 | 1638 | wait_for_property_change (wait_object); |
1b65481e | 1639 | |
ede4db72 | 1640 | /* expect it again immediately, because x_get_window_property may |
2a1a4c9d | 1641 | .. no it won't, I don't get it. |
d9c0d4a3 GM |
1642 | .. Ok, I get it now, the Xt code that implements INCR is broken. */ |
1643 | TRACE0 (" Get property value"); | |
ede4db72 RS |
1644 | x_get_window_property (display, window, property, |
1645 | &tmp_data, &tmp_size_bytes, | |
1646 | type_ret, format_ret, size_ret, 1); | |
1647 | ||
d9c0d4a3 GM |
1648 | TRACE1 (" Read increment of %d bytes", tmp_size_bytes); |
1649 | ||
ede4db72 RS |
1650 | if (tmp_size_bytes == 0) /* we're done */ |
1651 | { | |
d9c0d4a3 GM |
1652 | TRACE0 ("Done reading incrementally"); |
1653 | ||
2f65feb6 RS |
1654 | if (! waiting_for_other_props_on_window (display, window)) |
1655 | XSelectInput (display, window, STANDARD_EVENT_SET); | |
4feb31b2 | 1656 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1657 | calls xmalloc itself. */ |
4feb31b2 | 1658 | if (tmp_data) xfree (tmp_data); |
ede4db72 RS |
1659 | break; |
1660 | } | |
2f65feb6 RS |
1661 | |
1662 | BLOCK_INPUT; | |
d9c0d4a3 GM |
1663 | TRACE1 (" ACK by deleting property %s", |
1664 | XGetAtomName (display, property)); | |
2f65feb6 | 1665 | XDeleteProperty (display, window, property); |
d1f21a66 RS |
1666 | wait_object = expect_property_change (display, window, property, |
1667 | PropertyNewValue); | |
5c3a351a | 1668 | XFlush (display); |
2f65feb6 RS |
1669 | UNBLOCK_INPUT; |
1670 | ||
ede4db72 RS |
1671 | if (*size_bytes_ret < offset + tmp_size_bytes) |
1672 | { | |
ede4db72 RS |
1673 | *size_bytes_ret = offset + tmp_size_bytes; |
1674 | *data_ret = (unsigned char *) xrealloc (*data_ret, *size_bytes_ret); | |
1675 | } | |
1b65481e | 1676 | |
018cfa07 | 1677 | bcopy (tmp_data, (*data_ret) + offset, tmp_size_bytes); |
ede4db72 | 1678 | offset += tmp_size_bytes; |
1b65481e | 1679 | |
4feb31b2 | 1680 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1681 | calls xmalloc itself. */ |
4feb31b2 | 1682 | xfree (tmp_data); |
ede4db72 RS |
1683 | } |
1684 | } | |
d9c0d4a3 | 1685 | |
ede4db72 RS |
1686 | \f |
1687 | /* Once a requested selection is "ready" (we got a SelectionNotify event), | |
1688 | fetch value from property PROPERTY of X window WINDOW on display DISPLAY. | |
1689 | TARGET_TYPE and SELECTION_ATOM are used in error message if this fails. */ | |
1690 | ||
1691 | static Lisp_Object | |
1692 | x_get_window_property_as_lisp_data (display, window, property, target_type, | |
1693 | selection_atom) | |
1694 | Display *display; | |
1695 | Window window; | |
1696 | Atom property; | |
1697 | Lisp_Object target_type; /* for error messages only */ | |
1698 | Atom selection_atom; /* for error messages only */ | |
1699 | { | |
1700 | Atom actual_type; | |
1701 | int actual_format; | |
1702 | unsigned long actual_size; | |
1703 | unsigned char *data = 0; | |
1704 | int bytes = 0; | |
1705 | Lisp_Object val; | |
5c3a351a | 1706 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 | 1707 | |
d9c0d4a3 GM |
1708 | TRACE0 ("Reading selection data"); |
1709 | ||
ede4db72 RS |
1710 | x_get_window_property (display, window, property, &data, &bytes, |
1711 | &actual_type, &actual_format, &actual_size, 1); | |
1712 | if (! data) | |
1713 | { | |
1714 | int there_is_a_selection_owner; | |
1715 | BLOCK_INPUT; | |
1716 | there_is_a_selection_owner | |
1717 | = XGetSelectionOwner (display, selection_atom); | |
1718 | UNBLOCK_INPUT; | |
5a499696 RS |
1719 | Fsignal (Qerror, |
1720 | there_is_a_selection_owner | |
1721 | ? Fcons (build_string ("selection owner couldn't convert"), | |
ede4db72 RS |
1722 | actual_type |
1723 | ? Fcons (target_type, | |
d9c0d4a3 | 1724 | Fcons (x_atom_to_symbol (display, |
5c3a351a | 1725 | actual_type), |
ede4db72 RS |
1726 | Qnil)) |
1727 | : Fcons (target_type, Qnil)) | |
5a499696 | 1728 | : Fcons (build_string ("no selection"), |
d9c0d4a3 | 1729 | Fcons (x_atom_to_symbol (display, |
5a499696 RS |
1730 | selection_atom), |
1731 | Qnil))); | |
ede4db72 | 1732 | } |
1b65481e | 1733 | |
5c3a351a | 1734 | if (actual_type == dpyinfo->Xatom_INCR) |
ede4db72 RS |
1735 | { |
1736 | /* That wasn't really the data, just the beginning. */ | |
1737 | ||
1738 | unsigned int min_size_bytes = * ((unsigned int *) data); | |
1739 | BLOCK_INPUT; | |
4feb31b2 | 1740 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1741 | calls xmalloc itself. */ |
4feb31b2 | 1742 | xfree ((char *) data); |
ede4db72 RS |
1743 | UNBLOCK_INPUT; |
1744 | receive_incremental_selection (display, window, property, target_type, | |
1745 | min_size_bytes, &data, &bytes, | |
1746 | &actual_type, &actual_format, | |
1747 | &actual_size); | |
1748 | } | |
1749 | ||
2f65feb6 | 1750 | BLOCK_INPUT; |
d9c0d4a3 | 1751 | TRACE1 (" Delete property %s", XGetAtomName (display, property)); |
2f65feb6 | 1752 | XDeleteProperty (display, window, property); |
5c3a351a | 1753 | XFlush (display); |
2f65feb6 RS |
1754 | UNBLOCK_INPUT; |
1755 | ||
ede4db72 RS |
1756 | /* It's been read. Now convert it to a lisp object in some semi-rational |
1757 | manner. */ | |
1758 | val = selection_data_to_lisp_data (display, data, bytes, | |
1759 | actual_type, actual_format); | |
1b65481e | 1760 | |
4feb31b2 | 1761 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1762 | calls xmalloc itself. */ |
4feb31b2 | 1763 | xfree ((char *) data); |
ede4db72 RS |
1764 | return val; |
1765 | } | |
1766 | \f | |
1767 | /* These functions convert from the selection data read from the server into | |
1768 | something that we can use from Lisp, and vice versa. | |
1769 | ||
1770 | Type: Format: Size: Lisp Type: | |
1771 | ----- ------- ----- ----------- | |
1772 | * 8 * String | |
1773 | ATOM 32 1 Symbol | |
1774 | ATOM 32 > 1 Vector of Symbols | |
1775 | * 16 1 Integer | |
1776 | * 16 > 1 Vector of Integers | |
1777 | * 32 1 if <=16 bits: Integer | |
1778 | if > 16 bits: Cons of top16, bot16 | |
1779 | * 32 > 1 Vector of the above | |
1780 | ||
1781 | When converting a Lisp number to C, it is assumed to be of format 16 if | |
1782 | it is an integer, and of format 32 if it is a cons of two integers. | |
1783 | ||
1784 | When converting a vector of numbers from Lisp to C, it is assumed to be | |
1785 | of format 16 if every element in the vector is an integer, and is assumed | |
1786 | to be of format 32 if any element is a cons of two integers. | |
1787 | ||
1788 | When converting an object to C, it may be of the form (SYMBOL . <data>) | |
1789 | where SYMBOL is what we should claim that the type is. Format and | |
b8d6f4af JD |
1790 | representation are as above. |
1791 | ||
1792 | Important: When format is 32, data should contain an array of int, | |
1793 | not an array of long as the X library returns. This makes a difference | |
1794 | when sizeof(long) != sizeof(int). */ | |
ede4db72 RS |
1795 | |
1796 | ||
1797 | ||
1798 | static Lisp_Object | |
1799 | selection_data_to_lisp_data (display, data, size, type, format) | |
1800 | Display *display; | |
1801 | unsigned char *data; | |
1802 | Atom type; | |
1803 | int size, format; | |
1804 | { | |
5c3a351a | 1805 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 | 1806 | |
5c3a351a | 1807 | if (type == dpyinfo->Xatom_NULL) |
ede4db72 RS |
1808 | return QNULL; |
1809 | ||
1810 | /* Convert any 8-bit data to a string, for compactness. */ | |
1811 | else if (format == 8) | |
e6c7c988 | 1812 | { |
e57ad4d8 KH |
1813 | Lisp_Object str, lispy_type; |
1814 | ||
1815 | str = make_unibyte_string ((char *) data, size); | |
1816 | /* Indicate that this string is from foreign selection by a text | |
1817 | property `foreign-selection' so that the caller of | |
1818 | x-get-selection-internal (usually x-get-selection) can know | |
1819 | that the string must be decode. */ | |
1820 | if (type == dpyinfo->Xatom_COMPOUND_TEXT) | |
1821 | lispy_type = QCOMPOUND_TEXT; | |
1822 | else if (type == dpyinfo->Xatom_UTF8_STRING) | |
1823 | lispy_type = QUTF8_STRING; | |
e6c7c988 | 1824 | else |
e57ad4d8 KH |
1825 | lispy_type = QSTRING; |
1826 | Fput_text_property (make_number (0), make_number (size), | |
1827 | Qforeign_selection, lispy_type, str); | |
e6c7c988 KH |
1828 | return str; |
1829 | } | |
ede4db72 RS |
1830 | /* Convert a single atom to a Lisp_Symbol. Convert a set of atoms to |
1831 | a vector of symbols. | |
1832 | */ | |
1833 | else if (type == XA_ATOM) | |
1834 | { | |
1835 | int i; | |
b8d6f4af JD |
1836 | /* On a 64 bit machine sizeof(Atom) == sizeof(long) == 8. |
1837 | But the callers of these function has made sure the data for | |
1838 | format == 32 is an array of int. Thus, use int instead | |
1839 | of Atom. */ | |
1840 | int *idata = (int *) data; | |
1841 | ||
1842 | if (size == sizeof (int)) | |
1843 | return x_atom_to_symbol (display, (Atom) idata[0]); | |
ede4db72 RS |
1844 | else |
1845 | { | |
b8d6f4af | 1846 | Lisp_Object v = Fmake_vector (make_number (size / sizeof (int)), |
e607a484 | 1847 | make_number (0)); |
b8d6f4af | 1848 | for (i = 0; i < size / sizeof (int); i++) |
e607a484 | 1849 | Faset (v, make_number (i), |
b8d6f4af | 1850 | x_atom_to_symbol (display, (Atom) idata[i])); |
ede4db72 RS |
1851 | return v; |
1852 | } | |
1853 | } | |
1854 | ||
1855 | /* Convert a single 16 or small 32 bit number to a Lisp_Int. | |
1856 | If the number is > 16 bits, convert it to a cons of integers, | |
1857 | 16 bits in each half. | |
1858 | */ | |
2f51feb8 AS |
1859 | else if (format == 32 && size == sizeof (int)) |
1860 | return long_to_cons (((unsigned int *) data) [0]); | |
ede4db72 RS |
1861 | else if (format == 16 && size == sizeof (short)) |
1862 | return make_number ((int) (((unsigned short *) data) [0])); | |
1863 | ||
1864 | /* Convert any other kind of data to a vector of numbers, represented | |
1865 | as above (as an integer, or a cons of two 16 bit integers.) | |
1866 | */ | |
1867 | else if (format == 16) | |
1868 | { | |
1869 | int i; | |
937a3875 RS |
1870 | Lisp_Object v; |
1871 | v = Fmake_vector (make_number (size / 2), make_number (0)); | |
1872 | for (i = 0; i < size / 2; i++) | |
ede4db72 RS |
1873 | { |
1874 | int j = (int) ((unsigned short *) data) [i]; | |
e607a484 | 1875 | Faset (v, make_number (i), make_number (j)); |
ede4db72 RS |
1876 | } |
1877 | return v; | |
1878 | } | |
1879 | else | |
1880 | { | |
1881 | int i; | |
e607a484 | 1882 | Lisp_Object v = Fmake_vector (make_number (size / 4), make_number (0)); |
ede4db72 RS |
1883 | for (i = 0; i < size / 4; i++) |
1884 | { | |
2f51feb8 | 1885 | unsigned int j = ((unsigned int *) data) [i]; |
e607a484 | 1886 | Faset (v, make_number (i), long_to_cons (j)); |
ede4db72 RS |
1887 | } |
1888 | return v; | |
1889 | } | |
1890 | } | |
1891 | ||
1892 | ||
4feb31b2 | 1893 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1894 | |
ede4db72 RS |
1895 | static void |
1896 | lisp_data_to_selection_data (display, obj, | |
aca39f42 RS |
1897 | data_ret, type_ret, size_ret, |
1898 | format_ret, nofree_ret) | |
ede4db72 RS |
1899 | Display *display; |
1900 | Lisp_Object obj; | |
1901 | unsigned char **data_ret; | |
1902 | Atom *type_ret; | |
1903 | unsigned int *size_ret; | |
1904 | int *format_ret; | |
aca39f42 | 1905 | int *nofree_ret; |
ede4db72 RS |
1906 | { |
1907 | Lisp_Object type = Qnil; | |
5c3a351a | 1908 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
aca39f42 RS |
1909 | |
1910 | *nofree_ret = 0; | |
1911 | ||
8e713be6 | 1912 | if (CONSP (obj) && SYMBOLP (XCAR (obj))) |
ede4db72 | 1913 | { |
8e713be6 KR |
1914 | type = XCAR (obj); |
1915 | obj = XCDR (obj); | |
1916 | if (CONSP (obj) && NILP (XCDR (obj))) | |
1917 | obj = XCAR (obj); | |
ede4db72 RS |
1918 | } |
1919 | ||
1920 | if (EQ (obj, QNULL) || (EQ (type, QNULL))) | |
1921 | { /* This is not the same as declining */ | |
1922 | *format_ret = 32; | |
1923 | *size_ret = 0; | |
1924 | *data_ret = 0; | |
1925 | type = QNULL; | |
1926 | } | |
1927 | else if (STRINGP (obj)) | |
1928 | { | |
1bd70c6e KH |
1929 | if (SCHARS (obj) < SBYTES (obj)) |
1930 | /* OBJ is a multibyte string containing a non-ASCII char. */ | |
1931 | Fsignal (Qerror, /* Qselection_error */ | |
1932 | Fcons (build_string | |
1933 | ("Non-ASCII string must be encoded in advance"), | |
1934 | Fcons (obj, Qnil))); | |
7b9ae523 | 1935 | if (NILP (type)) |
5109c8dd KH |
1936 | type = QSTRING; |
1937 | *format_ret = 8; | |
1938 | *size_ret = SBYTES (obj); | |
1939 | *data_ret = SDATA (obj); | |
1940 | *nofree_ret = 1; | |
ede4db72 RS |
1941 | } |
1942 | else if (SYMBOLP (obj)) | |
1943 | { | |
1944 | *format_ret = 32; | |
1945 | *size_ret = 1; | |
1946 | *data_ret = (unsigned char *) xmalloc (sizeof (Atom) + 1); | |
1947 | (*data_ret) [sizeof (Atom)] = 0; | |
5c3a351a | 1948 | (*(Atom **) data_ret) [0] = symbol_to_x_atom (dpyinfo, display, obj); |
ede4db72 RS |
1949 | if (NILP (type)) type = QATOM; |
1950 | } | |
7da64e5c | 1951 | else if (INTEGERP (obj) |
ede4db72 RS |
1952 | && XINT (obj) < 0xFFFF |
1953 | && XINT (obj) > -0xFFFF) | |
1954 | { | |
1955 | *format_ret = 16; | |
1956 | *size_ret = 1; | |
1957 | *data_ret = (unsigned char *) xmalloc (sizeof (short) + 1); | |
1958 | (*data_ret) [sizeof (short)] = 0; | |
1959 | (*(short **) data_ret) [0] = (short) XINT (obj); | |
1960 | if (NILP (type)) type = QINTEGER; | |
1961 | } | |
a87ed99c | 1962 | else if (INTEGERP (obj) |
8e713be6 KR |
1963 | || (CONSP (obj) && INTEGERP (XCAR (obj)) |
1964 | && (INTEGERP (XCDR (obj)) | |
1965 | || (CONSP (XCDR (obj)) | |
1966 | && INTEGERP (XCAR (XCDR (obj))))))) | |
ede4db72 RS |
1967 | { |
1968 | *format_ret = 32; | |
1969 | *size_ret = 1; | |
1970 | *data_ret = (unsigned char *) xmalloc (sizeof (long) + 1); | |
1971 | (*data_ret) [sizeof (long)] = 0; | |
1972 | (*(unsigned long **) data_ret) [0] = cons_to_long (obj); | |
1973 | if (NILP (type)) type = QINTEGER; | |
1974 | } | |
1975 | else if (VECTORP (obj)) | |
1976 | { | |
1977 | /* Lisp_Vectors may represent a set of ATOMs; | |
1978 | a set of 16 or 32 bit INTEGERs; | |
1979 | or a set of ATOM_PAIRs (represented as [[A1 A2] [A3 A4] ...] | |
1980 | */ | |
1981 | int i; | |
1982 | ||
1983 | if (SYMBOLP (XVECTOR (obj)->contents [0])) | |
1984 | /* This vector is an ATOM set */ | |
1985 | { | |
1986 | if (NILP (type)) type = QATOM; | |
1987 | *size_ret = XVECTOR (obj)->size; | |
1988 | *format_ret = 32; | |
1989 | *data_ret = (unsigned char *) xmalloc ((*size_ret) * sizeof (Atom)); | |
1990 | for (i = 0; i < *size_ret; i++) | |
1991 | if (SYMBOLP (XVECTOR (obj)->contents [i])) | |
1992 | (*(Atom **) data_ret) [i] | |
5c3a351a | 1993 | = symbol_to_x_atom (dpyinfo, display, XVECTOR (obj)->contents [i]); |
ede4db72 RS |
1994 | else |
1995 | Fsignal (Qerror, /* Qselection_error */ | |
1996 | Fcons (build_string | |
1997 | ("all elements of selection vector must have same type"), | |
1998 | Fcons (obj, Qnil))); | |
1999 | } | |
2000 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
2001 | else if (VECTORP (XVECTOR (obj)->contents [0])) | |
2002 | /* This vector is an ATOM_PAIR set */ | |
2003 | { | |
2004 | if (NILP (type)) type = QATOM_PAIR; | |
2005 | *size_ret = XVECTOR (obj)->size; | |
2006 | *format_ret = 32; | |
2007 | *data_ret = (unsigned char *) | |
2008 | xmalloc ((*size_ret) * sizeof (Atom) * 2); | |
2009 | for (i = 0; i < *size_ret; i++) | |
2010 | if (VECTORP (XVECTOR (obj)->contents [i])) | |
2011 | { | |
2012 | Lisp_Object pair = XVECTOR (obj)->contents [i]; | |
2013 | if (XVECTOR (pair)->size != 2) | |
2014 | Fsignal (Qerror, | |
1b65481e | 2015 | Fcons (build_string |
ede4db72 RS |
2016 | ("elements of the vector must be vectors of exactly two elements"), |
2017 | Fcons (pair, Qnil))); | |
1b65481e | 2018 | |
ede4db72 | 2019 | (*(Atom **) data_ret) [i * 2] |
5c3a351a RS |
2020 | = symbol_to_x_atom (dpyinfo, display, |
2021 | XVECTOR (pair)->contents [0]); | |
ede4db72 | 2022 | (*(Atom **) data_ret) [(i * 2) + 1] |
5c3a351a RS |
2023 | = symbol_to_x_atom (dpyinfo, display, |
2024 | XVECTOR (pair)->contents [1]); | |
ede4db72 RS |
2025 | } |
2026 | else | |
2027 | Fsignal (Qerror, | |
2028 | Fcons (build_string | |
2029 | ("all elements of the vector must be of the same type"), | |
2030 | Fcons (obj, Qnil))); | |
1b65481e | 2031 | |
ede4db72 RS |
2032 | } |
2033 | #endif | |
2034 | else | |
2035 | /* This vector is an INTEGER set, or something like it */ | |
2036 | { | |
e22cf39c | 2037 | int data_size = 2; |
ede4db72 RS |
2038 | *size_ret = XVECTOR (obj)->size; |
2039 | if (NILP (type)) type = QINTEGER; | |
2040 | *format_ret = 16; | |
2041 | for (i = 0; i < *size_ret; i++) | |
2042 | if (CONSP (XVECTOR (obj)->contents [i])) | |
2043 | *format_ret = 32; | |
7da64e5c | 2044 | else if (!INTEGERP (XVECTOR (obj)->contents [i])) |
ede4db72 RS |
2045 | Fsignal (Qerror, /* Qselection_error */ |
2046 | Fcons (build_string | |
2047 | ("elements of selection vector must be integers or conses of integers"), | |
2048 | Fcons (obj, Qnil))); | |
2049 | ||
e22cf39c JD |
2050 | /* Use sizeof(long) even if it is more than 32 bits. See comment |
2051 | in x_get_window_property and x_fill_property_data. */ | |
6e816df5 | 2052 | |
e22cf39c JD |
2053 | if (*format_ret == 32) data_size = sizeof(long); |
2054 | *data_ret = (unsigned char *) xmalloc (*size_ret * data_size); | |
ede4db72 RS |
2055 | for (i = 0; i < *size_ret; i++) |
2056 | if (*format_ret == 32) | |
2057 | (*((unsigned long **) data_ret)) [i] | |
2058 | = cons_to_long (XVECTOR (obj)->contents [i]); | |
2059 | else | |
2060 | (*((unsigned short **) data_ret)) [i] | |
2061 | = (unsigned short) cons_to_long (XVECTOR (obj)->contents [i]); | |
2062 | } | |
2063 | } | |
2064 | else | |
2065 | Fsignal (Qerror, /* Qselection_error */ | |
6e816df5 | 2066 | Fcons (build_string ("unrecognized selection data"), |
ede4db72 RS |
2067 | Fcons (obj, Qnil))); |
2068 | ||
5c3a351a | 2069 | *type_ret = symbol_to_x_atom (dpyinfo, display, type); |
ede4db72 RS |
2070 | } |
2071 | ||
2072 | static Lisp_Object | |
2073 | clean_local_selection_data (obj) | |
2074 | Lisp_Object obj; | |
2075 | { | |
2076 | if (CONSP (obj) | |
8e713be6 KR |
2077 | && INTEGERP (XCAR (obj)) |
2078 | && CONSP (XCDR (obj)) | |
2079 | && INTEGERP (XCAR (XCDR (obj))) | |
2080 | && NILP (XCDR (XCDR (obj)))) | |
2081 | obj = Fcons (XCAR (obj), XCDR (obj)); | |
ede4db72 RS |
2082 | |
2083 | if (CONSP (obj) | |
8e713be6 KR |
2084 | && INTEGERP (XCAR (obj)) |
2085 | && INTEGERP (XCDR (obj))) | |
ede4db72 | 2086 | { |
8e713be6 KR |
2087 | if (XINT (XCAR (obj)) == 0) |
2088 | return XCDR (obj); | |
2089 | if (XINT (XCAR (obj)) == -1) | |
2090 | return make_number (- XINT (XCDR (obj))); | |
ede4db72 RS |
2091 | } |
2092 | if (VECTORP (obj)) | |
2093 | { | |
2094 | int i; | |
2095 | int size = XVECTOR (obj)->size; | |
2096 | Lisp_Object copy; | |
2097 | if (size == 1) | |
2098 | return clean_local_selection_data (XVECTOR (obj)->contents [0]); | |
e607a484 | 2099 | copy = Fmake_vector (make_number (size), Qnil); |
ede4db72 RS |
2100 | for (i = 0; i < size; i++) |
2101 | XVECTOR (copy)->contents [i] | |
2102 | = clean_local_selection_data (XVECTOR (obj)->contents [i]); | |
2103 | return copy; | |
2104 | } | |
2105 | return obj; | |
2106 | } | |
2107 | \f | |
2108 | /* Called from XTread_socket to handle SelectionNotify events. | |
606140dd KH |
2109 | If it's the selection we are waiting for, stop waiting |
2110 | by setting the car of reading_selection_reply to non-nil. | |
2111 | We store t there if the reply is successful, lambda if not. */ | |
ede4db72 RS |
2112 | |
2113 | void | |
2114 | x_handle_selection_notify (event) | |
2115 | XSelectionEvent *event; | |
2116 | { | |
5d0ba25b | 2117 | if (event->requestor != reading_selection_window) |
ede4db72 RS |
2118 | return; |
2119 | if (event->selection != reading_which_selection) | |
2120 | return; | |
2121 | ||
d9c0d4a3 | 2122 | TRACE0 ("Received SelectionNotify"); |
f3fbd155 KR |
2123 | XSETCAR (reading_selection_reply, |
2124 | (event->property != 0 ? Qt : Qlambda)); | |
ede4db72 RS |
2125 | } |
2126 | ||
2127 | \f | |
a0d76c27 | 2128 | DEFUN ("x-own-selection-internal", Fx_own_selection_internal, |
8c1a1077 PJ |
2129 | Sx_own_selection_internal, 2, 2, 0, |
2130 | doc: /* Assert an X selection of the given TYPE with the given VALUE. | |
2131 | TYPE is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2132 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2133 | VALUE is typically a string, or a cons of two markers, but may be | |
2134 | anything that the functions on `selection-converter-alist' know about. */) | |
2135 | (selection_name, selection_value) | |
ede4db72 RS |
2136 | Lisp_Object selection_name, selection_value; |
2137 | { | |
703e0710 | 2138 | check_x (); |
b7826503 | 2139 | CHECK_SYMBOL (selection_name); |
253b2298 | 2140 | if (NILP (selection_value)) error ("SELECTION-VALUE may not be nil"); |
ede4db72 RS |
2141 | x_own_selection (selection_name, selection_value); |
2142 | return selection_value; | |
2143 | } | |
2144 | ||
2145 | ||
2146 | /* Request the selection value from the owner. If we are the owner, | |
2147 | simply return our selection value. If we are not the owner, this | |
2148 | will block until all of the data has arrived. */ | |
2149 | ||
a0d76c27 | 2150 | DEFUN ("x-get-selection-internal", Fx_get_selection_internal, |
3a42401d | 2151 | Sx_get_selection_internal, 2, 3, 0, |
8c1a1077 PJ |
2152 | doc: /* Return text selected from some X window. |
2153 | SELECTION is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2154 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
3a42401d JD |
2155 | TYPE is the type of data desired, typically `STRING'. |
2156 | TIME_STAMP is the time to use in the XConvertSelection call for foreign | |
2157 | selections. If omitted, defaults to the time for the last event. */) | |
2158 | (selection_symbol, target_type, time_stamp) | |
2159 | Lisp_Object selection_symbol, target_type, time_stamp; | |
ede4db72 RS |
2160 | { |
2161 | Lisp_Object val = Qnil; | |
2162 | struct gcpro gcpro1, gcpro2; | |
2163 | GCPRO2 (target_type, val); /* we store newly consed data into these */ | |
703e0710 | 2164 | check_x (); |
b7826503 | 2165 | CHECK_SYMBOL (selection_symbol); |
ede4db72 RS |
2166 | |
2167 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
2168 | if (CONSP (target_type) | |
8e713be6 | 2169 | && XCAR (target_type) == QMULTIPLE) |
ede4db72 | 2170 | { |
b7826503 | 2171 | CHECK_VECTOR (XCDR (target_type)); |
ede4db72 RS |
2172 | /* So we don't destructively modify this... */ |
2173 | target_type = copy_multiple_data (target_type); | |
2174 | } | |
2175 | else | |
2176 | #endif | |
b7826503 | 2177 | CHECK_SYMBOL (target_type); |
ede4db72 | 2178 | |
5109c8dd | 2179 | val = x_get_local_selection (selection_symbol, target_type, 1); |
ede4db72 RS |
2180 | |
2181 | if (NILP (val)) | |
2182 | { | |
3a42401d | 2183 | val = x_get_foreign_selection (selection_symbol, target_type, time_stamp); |
ede4db72 RS |
2184 | goto DONE; |
2185 | } | |
2186 | ||
2187 | if (CONSP (val) | |
8e713be6 | 2188 | && SYMBOLP (XCAR (val))) |
ede4db72 | 2189 | { |
8e713be6 KR |
2190 | val = XCDR (val); |
2191 | if (CONSP (val) && NILP (XCDR (val))) | |
2192 | val = XCAR (val); | |
ede4db72 RS |
2193 | } |
2194 | val = clean_local_selection_data (val); | |
2195 | DONE: | |
2196 | UNGCPRO; | |
2197 | return val; | |
2198 | } | |
2199 | ||
a0d76c27 | 2200 | DEFUN ("x-disown-selection-internal", Fx_disown_selection_internal, |
8c1a1077 PJ |
2201 | Sx_disown_selection_internal, 1, 2, 0, |
2202 | doc: /* If we own the selection SELECTION, disown it. | |
2203 | Disowning it means there is no such selection. */) | |
2204 | (selection, time) | |
ede4db72 RS |
2205 | Lisp_Object selection; |
2206 | Lisp_Object time; | |
2207 | { | |
ede4db72 RS |
2208 | Time timestamp; |
2209 | Atom selection_atom; | |
31df61d6 AS |
2210 | union { |
2211 | struct selection_input_event sie; | |
2212 | struct input_event ie; | |
2213 | } event; | |
3834c318 | 2214 | Display *display; |
5c3a351a | 2215 | struct x_display_info *dpyinfo; |
378c33ca | 2216 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2217 | |
703e0710 | 2218 | check_x (); |
378c33ca GM |
2219 | display = FRAME_X_DISPLAY (sf); |
2220 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
b7826503 | 2221 | CHECK_SYMBOL (selection); |
ede4db72 | 2222 | if (NILP (time)) |
7da64e5c | 2223 | timestamp = last_event_timestamp; |
ede4db72 RS |
2224 | else |
2225 | timestamp = cons_to_long (time); | |
2226 | ||
2227 | if (NILP (assq_no_quit (selection, Vselection_alist))) | |
2228 | return Qnil; /* Don't disown the selection when we're not the owner. */ | |
2229 | ||
5c3a351a | 2230 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection); |
ede4db72 RS |
2231 | |
2232 | BLOCK_INPUT; | |
2233 | XSetSelectionOwner (display, selection_atom, None, timestamp); | |
2234 | UNBLOCK_INPUT; | |
2235 | ||
eb8c3be9 | 2236 | /* It doesn't seem to be guaranteed that a SelectionClear event will be |
ede4db72 RS |
2237 | generated for a window which owns the selection when that window sets |
2238 | the selection owner to None. The NCD server does, the MIT Sun4 server | |
2239 | doesn't. So we synthesize one; this means we might get two, but | |
2240 | that's ok, because the second one won't have any effect. */ | |
31df61d6 AS |
2241 | SELECTION_EVENT_DISPLAY (&event.sie) = display; |
2242 | SELECTION_EVENT_SELECTION (&event.sie) = selection_atom; | |
2243 | SELECTION_EVENT_TIME (&event.sie) = timestamp; | |
2244 | x_handle_selection_clear (&event.ie); | |
ede4db72 RS |
2245 | |
2246 | return Qt; | |
2247 | } | |
2248 | ||
a87ed99c RS |
2249 | /* Get rid of all the selections in buffer BUFFER. |
2250 | This is used when we kill a buffer. */ | |
2251 | ||
2252 | void | |
2253 | x_disown_buffer_selections (buffer) | |
2254 | Lisp_Object buffer; | |
2255 | { | |
2256 | Lisp_Object tail; | |
2257 | struct buffer *buf = XBUFFER (buffer); | |
2258 | ||
8e713be6 | 2259 | for (tail = Vselection_alist; CONSP (tail); tail = XCDR (tail)) |
a87ed99c RS |
2260 | { |
2261 | Lisp_Object elt, value; | |
8e713be6 KR |
2262 | elt = XCAR (tail); |
2263 | value = XCDR (elt); | |
2264 | if (CONSP (value) && MARKERP (XCAR (value)) | |
2265 | && XMARKER (XCAR (value))->buffer == buf) | |
2266 | Fx_disown_selection_internal (XCAR (elt), Qnil); | |
a87ed99c RS |
2267 | } |
2268 | } | |
ede4db72 RS |
2269 | |
2270 | DEFUN ("x-selection-owner-p", Fx_selection_owner_p, Sx_selection_owner_p, | |
8c1a1077 PJ |
2271 | 0, 1, 0, |
2272 | doc: /* Whether the current Emacs process owns the given X Selection. | |
2273 | The arg should be the name of the selection in question, typically one of | |
2274 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2275 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2276 | For convenience, the symbol nil is the same as `PRIMARY', | |
2277 | and t is the same as `SECONDARY'. */) | |
2278 | (selection) | |
ede4db72 RS |
2279 | Lisp_Object selection; |
2280 | { | |
703e0710 | 2281 | check_x (); |
b7826503 | 2282 | CHECK_SYMBOL (selection); |
ede4db72 RS |
2283 | if (EQ (selection, Qnil)) selection = QPRIMARY; |
2284 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
1b65481e | 2285 | |
ede4db72 RS |
2286 | if (NILP (Fassq (selection, Vselection_alist))) |
2287 | return Qnil; | |
2288 | return Qt; | |
2289 | } | |
2290 | ||
2291 | DEFUN ("x-selection-exists-p", Fx_selection_exists_p, Sx_selection_exists_p, | |
8c1a1077 PJ |
2292 | 0, 1, 0, |
2293 | doc: /* Whether there is an owner for the given X Selection. | |
2294 | The arg should be the name of the selection in question, typically one of | |
2295 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2296 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2297 | For convenience, the symbol nil is the same as `PRIMARY', | |
2298 | and t is the same as `SECONDARY'. */) | |
2299 | (selection) | |
ede4db72 RS |
2300 | Lisp_Object selection; |
2301 | { | |
2302 | Window owner; | |
356ba514 | 2303 | Atom atom; |
3834c318 | 2304 | Display *dpy; |
378c33ca | 2305 | struct frame *sf = SELECTED_FRAME (); |
3834c318 | 2306 | |
b8c70430 | 2307 | /* It should be safe to call this before we have an X frame. */ |
378c33ca | 2308 | if (! FRAME_X_P (sf)) |
b8c70430 RS |
2309 | return Qnil; |
2310 | ||
378c33ca | 2311 | dpy = FRAME_X_DISPLAY (sf); |
b7826503 | 2312 | CHECK_SYMBOL (selection); |
ede4db72 RS |
2313 | if (!NILP (Fx_selection_owner_p (selection))) |
2314 | return Qt; | |
356ba514 RS |
2315 | if (EQ (selection, Qnil)) selection = QPRIMARY; |
2316 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
378c33ca | 2317 | atom = symbol_to_x_atom (FRAME_X_DISPLAY_INFO (sf), dpy, selection); |
356ba514 RS |
2318 | if (atom == 0) |
2319 | return Qnil; | |
ede4db72 | 2320 | BLOCK_INPUT; |
356ba514 | 2321 | owner = XGetSelectionOwner (dpy, atom); |
ede4db72 RS |
2322 | UNBLOCK_INPUT; |
2323 | return (owner ? Qt : Qnil); | |
2324 | } | |
2325 | ||
2326 | \f | |
2327 | #ifdef CUT_BUFFER_SUPPORT | |
2328 | ||
ede4db72 RS |
2329 | /* Ensure that all 8 cut buffers exist. ICCCM says we gotta... */ |
2330 | static void | |
2331 | initialize_cut_buffers (display, window) | |
2332 | Display *display; | |
2333 | Window window; | |
2334 | { | |
2335 | unsigned char *data = (unsigned char *) ""; | |
2336 | BLOCK_INPUT; | |
2337 | #define FROB(atom) XChangeProperty (display, window, atom, XA_STRING, 8, \ | |
2338 | PropModeAppend, data, 0) | |
2339 | FROB (XA_CUT_BUFFER0); | |
2340 | FROB (XA_CUT_BUFFER1); | |
2341 | FROB (XA_CUT_BUFFER2); | |
2342 | FROB (XA_CUT_BUFFER3); | |
2343 | FROB (XA_CUT_BUFFER4); | |
2344 | FROB (XA_CUT_BUFFER5); | |
2345 | FROB (XA_CUT_BUFFER6); | |
2346 | FROB (XA_CUT_BUFFER7); | |
2347 | #undef FROB | |
2348 | UNBLOCK_INPUT; | |
ede4db72 RS |
2349 | } |
2350 | ||
2351 | ||
b7826503 PJ |
2352 | #define CHECK_CUT_BUFFER(symbol) \ |
2353 | { CHECK_SYMBOL ((symbol)); \ | |
ede4db72 RS |
2354 | if (!EQ((symbol), QCUT_BUFFER0) && !EQ((symbol), QCUT_BUFFER1) \ |
2355 | && !EQ((symbol), QCUT_BUFFER2) && !EQ((symbol), QCUT_BUFFER3) \ | |
2356 | && !EQ((symbol), QCUT_BUFFER4) && !EQ((symbol), QCUT_BUFFER5) \ | |
2357 | && !EQ((symbol), QCUT_BUFFER6) && !EQ((symbol), QCUT_BUFFER7)) \ | |
2358 | Fsignal (Qerror, \ | |
a87ed99c | 2359 | Fcons (build_string ("doesn't name a cut buffer"), \ |
ede4db72 RS |
2360 | Fcons ((symbol), Qnil))); \ |
2361 | } | |
2362 | ||
a87ed99c | 2363 | DEFUN ("x-get-cut-buffer-internal", Fx_get_cut_buffer_internal, |
8c1a1077 PJ |
2364 | Sx_get_cut_buffer_internal, 1, 1, 0, |
2365 | doc: /* Returns the value of the named cut buffer (typically CUT_BUFFER0). */) | |
2366 | (buffer) | |
ede4db72 RS |
2367 | Lisp_Object buffer; |
2368 | { | |
3834c318 | 2369 | Window window; |
ede4db72 RS |
2370 | Atom buffer_atom; |
2371 | unsigned char *data; | |
2372 | int bytes; | |
2373 | Atom type; | |
2374 | int format; | |
2375 | unsigned long size; | |
2376 | Lisp_Object ret; | |
3834c318 | 2377 | Display *display; |
5c3a351a | 2378 | struct x_display_info *dpyinfo; |
378c33ca | 2379 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2380 | |
703e0710 | 2381 | check_x (); |
378c33ca GM |
2382 | display = FRAME_X_DISPLAY (sf); |
2383 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
3834c318 | 2384 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
b7826503 | 2385 | CHECK_CUT_BUFFER (buffer); |
5c3a351a | 2386 | buffer_atom = symbol_to_x_atom (dpyinfo, display, buffer); |
ede4db72 RS |
2387 | |
2388 | x_get_window_property (display, window, buffer_atom, &data, &bytes, | |
2389 | &type, &format, &size, 0); | |
22e00739 RS |
2390 | if (!data || !format) |
2391 | return Qnil; | |
1b65481e | 2392 | |
ede4db72 RS |
2393 | if (format != 8 || type != XA_STRING) |
2394 | Fsignal (Qerror, | |
2395 | Fcons (build_string ("cut buffer doesn't contain 8-bit data"), | |
d9c0d4a3 | 2396 | Fcons (x_atom_to_symbol (display, type), |
ede4db72 RS |
2397 | Fcons (make_number (format), Qnil)))); |
2398 | ||
3f6b532c | 2399 | ret = (bytes ? make_unibyte_string ((char *) data, bytes) : Qnil); |
4feb31b2 | 2400 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 2401 | calls xmalloc itself. */ |
4feb31b2 | 2402 | xfree (data); |
ede4db72 RS |
2403 | return ret; |
2404 | } | |
2405 | ||
2406 | ||
a87ed99c | 2407 | DEFUN ("x-store-cut-buffer-internal", Fx_store_cut_buffer_internal, |
8c1a1077 PJ |
2408 | Sx_store_cut_buffer_internal, 2, 2, 0, |
2409 | doc: /* Sets the value of the named cut buffer (typically CUT_BUFFER0). */) | |
2410 | (buffer, string) | |
ede4db72 RS |
2411 | Lisp_Object buffer, string; |
2412 | { | |
3834c318 | 2413 | Window window; |
ede4db72 RS |
2414 | Atom buffer_atom; |
2415 | unsigned char *data; | |
2416 | int bytes; | |
2417 | int bytes_remaining; | |
3834c318 RS |
2418 | int max_bytes; |
2419 | Display *display; | |
378c33ca | 2420 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2421 | |
703e0710 | 2422 | check_x (); |
378c33ca | 2423 | display = FRAME_X_DISPLAY (sf); |
3834c318 RS |
2424 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
2425 | ||
2426 | max_bytes = SELECTION_QUANTUM (display); | |
2427 | if (max_bytes > MAX_SELECTION_QUANTUM) | |
2428 | max_bytes = MAX_SELECTION_QUANTUM; | |
2429 | ||
b7826503 PJ |
2430 | CHECK_CUT_BUFFER (buffer); |
2431 | CHECK_STRING (string); | |
378c33ca | 2432 | buffer_atom = symbol_to_x_atom (FRAME_X_DISPLAY_INFO (sf), |
5c3a351a | 2433 | display, buffer); |
d5db4077 KR |
2434 | data = (unsigned char *) SDATA (string); |
2435 | bytes = SBYTES (string); | |
ede4db72 RS |
2436 | bytes_remaining = bytes; |
2437 | ||
378c33ca | 2438 | if (! FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized) |
04649dbc KH |
2439 | { |
2440 | initialize_cut_buffers (display, window); | |
378c33ca | 2441 | FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized = 1; |
04649dbc | 2442 | } |
ede4db72 RS |
2443 | |
2444 | BLOCK_INPUT; | |
10608c8c RS |
2445 | |
2446 | /* Don't mess up with an empty value. */ | |
2447 | if (!bytes_remaining) | |
2448 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
2449 | PropModeReplace, data, 0); | |
2450 | ||
ede4db72 RS |
2451 | while (bytes_remaining) |
2452 | { | |
2453 | int chunk = (bytes_remaining < max_bytes | |
2454 | ? bytes_remaining : max_bytes); | |
2455 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
2456 | (bytes_remaining == bytes | |
2457 | ? PropModeReplace | |
2458 | : PropModeAppend), | |
2459 | data, chunk); | |
2460 | data += chunk; | |
2461 | bytes_remaining -= chunk; | |
2462 | } | |
2463 | UNBLOCK_INPUT; | |
2464 | return string; | |
2465 | } | |
2466 | ||
2467 | ||
a87ed99c | 2468 | DEFUN ("x-rotate-cut-buffers-internal", Fx_rotate_cut_buffers_internal, |
8c1a1077 PJ |
2469 | Sx_rotate_cut_buffers_internal, 1, 1, 0, |
2470 | doc: /* Rotate the values of the cut buffers by the given number of step. | |
2471 | Positive means shift the values forward, negative means backward. */) | |
2472 | (n) | |
ede4db72 RS |
2473 | Lisp_Object n; |
2474 | { | |
3834c318 RS |
2475 | Window window; |
2476 | Atom props[8]; | |
2477 | Display *display; | |
378c33ca | 2478 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2479 | |
703e0710 | 2480 | check_x (); |
378c33ca | 2481 | display = FRAME_X_DISPLAY (sf); |
3834c318 | 2482 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
b7826503 | 2483 | CHECK_NUMBER (n); |
3834c318 RS |
2484 | if (XINT (n) == 0) |
2485 | return n; | |
378c33ca | 2486 | if (! FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized) |
04649dbc KH |
2487 | { |
2488 | initialize_cut_buffers (display, window); | |
378c33ca | 2489 | FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized = 1; |
04649dbc | 2490 | } |
3834c318 | 2491 | |
ede4db72 RS |
2492 | props[0] = XA_CUT_BUFFER0; |
2493 | props[1] = XA_CUT_BUFFER1; | |
2494 | props[2] = XA_CUT_BUFFER2; | |
2495 | props[3] = XA_CUT_BUFFER3; | |
2496 | props[4] = XA_CUT_BUFFER4; | |
2497 | props[5] = XA_CUT_BUFFER5; | |
2498 | props[6] = XA_CUT_BUFFER6; | |
2499 | props[7] = XA_CUT_BUFFER7; | |
2500 | BLOCK_INPUT; | |
2501 | XRotateWindowProperties (display, window, props, 8, XINT (n)); | |
2502 | UNBLOCK_INPUT; | |
2503 | return n; | |
2504 | } | |
2505 | ||
2506 | #endif | |
2507 | \f | |
1fb3821b JD |
2508 | /*********************************************************************** |
2509 | Drag and drop support | |
2510 | ***********************************************************************/ | |
2511 | /* Check that lisp values are of correct type for x_fill_property_data. | |
2512 | That is, number, string or a cons with two numbers (low and high 16 | |
2513 | bit parts of a 32 bit number). */ | |
2514 | ||
2515 | int | |
2516 | x_check_property_data (data) | |
2517 | Lisp_Object data; | |
2518 | { | |
2519 | Lisp_Object iter; | |
2520 | int size = 0; | |
2521 | ||
2522 | for (iter = data; CONSP (iter) && size != -1; iter = XCDR (iter), ++size) | |
2523 | { | |
2524 | Lisp_Object o = XCAR (iter); | |
2525 | ||
2526 | if (! NUMBERP (o) && ! STRINGP (o) && ! CONSP (o)) | |
2527 | size = -1; | |
2528 | else if (CONSP (o) && | |
2529 | (! NUMBERP (XCAR (o)) || ! NUMBERP (XCDR (o)))) | |
2530 | size = -1; | |
2531 | } | |
2532 | ||
2533 | return size; | |
2534 | } | |
2535 | ||
2536 | /* Convert lisp values to a C array. Values may be a number, a string | |
2537 | which is taken as an X atom name and converted to the atom value, or | |
2538 | a cons containing the two 16 bit parts of a 32 bit number. | |
2539 | ||
2540 | DPY is the display use to look up X atoms. | |
2541 | DATA is a Lisp list of values to be converted. | |
2542 | RET is the C array that contains the converted values. It is assumed | |
ff59904a | 2543 | it is big enough to hold all values. |
e22cf39c JD |
2544 | FORMAT is 8, 16 or 32 and denotes char/short/long for each C value to |
2545 | be stored in RET. Note that long is used for 32 even if long is more | |
2546 | than 32 bits (see man pages for XChangeProperty, XGetWindowProperty and | |
2547 | XClientMessageEvent). */ | |
1fb3821b JD |
2548 | |
2549 | void | |
2550 | x_fill_property_data (dpy, data, ret, format) | |
2551 | Display *dpy; | |
2552 | Lisp_Object data; | |
2553 | void *ret; | |
2554 | int format; | |
2555 | { | |
e22cf39c JD |
2556 | long val; |
2557 | long *d32 = (long *) ret; | |
2558 | short *d16 = (short *) ret; | |
2559 | char *d08 = (char *) ret; | |
1fb3821b JD |
2560 | Lisp_Object iter; |
2561 | ||
2562 | for (iter = data; CONSP (iter); iter = XCDR (iter)) | |
2563 | { | |
2564 | Lisp_Object o = XCAR (iter); | |
2565 | ||
2566 | if (INTEGERP (o)) | |
e22cf39c | 2567 | val = (long) XFASTINT (o); |
1fb3821b | 2568 | else if (FLOATP (o)) |
e22cf39c | 2569 | val = (long) XFLOAT_DATA (o); |
1fb3821b | 2570 | else if (CONSP (o)) |
e22cf39c | 2571 | val = (long) cons_to_long (o); |
1fb3821b JD |
2572 | else if (STRINGP (o)) |
2573 | { | |
2574 | BLOCK_INPUT; | |
e22cf39c | 2575 | val = (long) XInternAtom (dpy, (char *) SDATA (o), False); |
1fb3821b JD |
2576 | UNBLOCK_INPUT; |
2577 | } | |
2578 | else | |
2579 | error ("Wrong type, must be string, number or cons"); | |
2580 | ||
2581 | if (format == 8) | |
e22cf39c | 2582 | *d08++ = (char) val; |
1fb3821b | 2583 | else if (format == 16) |
e22cf39c | 2584 | *d16++ = (short) val; |
1fb3821b JD |
2585 | else |
2586 | *d32++ = val; | |
2587 | } | |
2588 | } | |
2589 | ||
2590 | /* Convert an array of C values to a Lisp list. | |
2591 | F is the frame to be used to look up X atoms if the TYPE is XA_ATOM. | |
2592 | DATA is a C array of values to be converted. | |
2593 | TYPE is the type of the data. Only XA_ATOM is special, it converts | |
2594 | each number in DATA to its corresponfing X atom as a symbol. | |
2595 | FORMAT is 8, 16 or 32 and gives the size in bits for each C value to | |
2596 | be stored in RET. | |
2597 | SIZE is the number of elements in DATA. | |
2598 | ||
b8d6f4af JD |
2599 | Important: When format is 32, data should contain an array of int, |
2600 | not an array of long as the X library returns. This makes a difference | |
2601 | when sizeof(long) != sizeof(int). | |
2602 | ||
1fb3821b JD |
2603 | Also see comment for selection_data_to_lisp_data above. */ |
2604 | ||
2605 | Lisp_Object | |
2606 | x_property_data_to_lisp (f, data, type, format, size) | |
2607 | struct frame *f; | |
2608 | unsigned char *data; | |
2609 | Atom type; | |
2610 | int format; | |
2611 | unsigned long size; | |
2612 | { | |
2613 | return selection_data_to_lisp_data (FRAME_X_DISPLAY (f), | |
2614 | data, size*format/8, type, format); | |
2615 | } | |
2616 | ||
31f16913 | 2617 | /* Get the mouse position in frame relative coordinates. */ |
1fb3821b JD |
2618 | |
2619 | static void | |
2620 | mouse_position_for_drop (f, x, y) | |
2621 | FRAME_PTR f; | |
2622 | int *x; | |
2623 | int *y; | |
2624 | { | |
2625 | Window root, dummy_window; | |
2626 | int dummy; | |
2627 | ||
2628 | BLOCK_INPUT; | |
2629 | ||
2630 | XQueryPointer (FRAME_X_DISPLAY (f), | |
2631 | DefaultRootWindow (FRAME_X_DISPLAY (f)), | |
2632 | ||
2633 | /* The root window which contains the pointer. */ | |
2634 | &root, | |
2635 | ||
2636 | /* Window pointer is on, not used */ | |
2637 | &dummy_window, | |
2638 | ||
2639 | /* The position on that root window. */ | |
2640 | x, y, | |
2641 | ||
2642 | /* x/y in dummy_window coordinates, not used. */ | |
2643 | &dummy, &dummy, | |
2644 | ||
2645 | /* Modifier keys and pointer buttons, about which | |
2646 | we don't care. */ | |
2647 | (unsigned int *) &dummy); | |
2648 | ||
2649 | ||
2650 | /* Absolute to relative. */ | |
2651 | *x -= f->left_pos + FRAME_OUTER_TO_INNER_DIFF_X (f); | |
2652 | *y -= f->top_pos + FRAME_OUTER_TO_INNER_DIFF_Y (f); | |
2653 | ||
2654 | UNBLOCK_INPUT; | |
2655 | } | |
2656 | ||
2657 | DEFUN ("x-get-atom-name", Fx_get_atom_name, | |
2658 | Sx_get_atom_name, 1, 2, 0, | |
2659 | doc: /* Return the X atom name for VALUE as a string. | |
2660 | VALUE may be a number or a cons where the car is the upper 16 bits and | |
2661 | the cdr is the lower 16 bits of a 32 bit value. | |
2662 | Use the display for FRAME or the current frame if FRAME is not given or nil. | |
2663 | ||
2664 | If the value is 0 or the atom is not known, return the empty string. */) | |
2665 | (value, frame) | |
2666 | Lisp_Object value, frame; | |
2667 | { | |
2668 | struct frame *f = check_x_frame (frame); | |
2669 | char *name = 0; | |
2670 | Lisp_Object ret = Qnil; | |
1fb3821b JD |
2671 | Display *dpy = FRAME_X_DISPLAY (f); |
2672 | Atom atom; | |
c525d842 | 2673 | int had_errors; |
1fb3821b JD |
2674 | |
2675 | if (INTEGERP (value)) | |
2676 | atom = (Atom) XUINT (value); | |
2677 | else if (FLOATP (value)) | |
ff59904a | 2678 | atom = (Atom) XFLOAT_DATA (value); |
1fb3821b JD |
2679 | else if (CONSP (value)) |
2680 | atom = (Atom) cons_to_long (value); | |
2681 | else | |
2682 | error ("Wrong type, value must be number or cons"); | |
2683 | ||
2684 | BLOCK_INPUT; | |
9ba8e10d | 2685 | x_catch_errors (dpy); |
1fb3821b | 2686 | name = atom ? XGetAtomName (dpy, atom) : ""; |
c525d842 CY |
2687 | had_errors = x_had_errors_p (dpy); |
2688 | x_uncatch_errors (); | |
1fb3821b | 2689 | |
c525d842 | 2690 | if (!had_errors) |
1fb3821b JD |
2691 | ret = make_string (name, strlen (name)); |
2692 | ||
1fb3821b JD |
2693 | if (atom && name) XFree (name); |
2694 | if (NILP (ret)) ret = make_string ("", 0); | |
2695 | ||
2696 | UNBLOCK_INPUT; | |
2697 | ||
2698 | return ret; | |
2699 | } | |
2700 | ||
2701 | /* Convert an XClientMessageEvent to a Lisp event of type DRAG_N_DROP_EVENT. | |
2702 | TODO: Check if this client event really is a DND event? */ | |
2703 | ||
2704 | int | |
2705 | x_handle_dnd_message (f, event, dpyinfo, bufp) | |
2706 | struct frame *f; | |
2707 | XClientMessageEvent *event; | |
2708 | struct x_display_info *dpyinfo; | |
2709 | struct input_event *bufp; | |
2710 | { | |
2711 | Lisp_Object vec; | |
2712 | Lisp_Object frame; | |
e22cf39c JD |
2713 | /* format 32 => size 5, format 16 => size 10, format 8 => size 20 */ |
2714 | unsigned long size = 160/event->format; | |
1fb3821b | 2715 | int x, y; |
31f16913 JD |
2716 | unsigned char *data = (unsigned char *) event->data.b; |
2717 | int idata[5]; | |
1fb3821b JD |
2718 | |
2719 | XSETFRAME (frame, f); | |
2720 | ||
31f16913 JD |
2721 | /* On a 64 bit machine, the event->data.l array members are 64 bits (long), |
2722 | but the x_property_data_to_lisp (or rather selection_data_to_lisp_data) | |
2723 | function expects them to be of size int (i.e. 32). So to be able to | |
2724 | use that function, put the data in the form it expects if format is 32. */ | |
2725 | ||
2726 | if (event->format == 32 && event->format < BITS_PER_LONG) | |
2727 | { | |
2728 | int i; | |
2729 | for (i = 0; i < 5; ++i) /* There are only 5 longs in a ClientMessage. */ | |
2730 | idata[i] = (int) event->data.l[i]; | |
2731 | data = (unsigned char *) idata; | |
2732 | } | |
2733 | ||
d2f14999 | 2734 | vec = Fmake_vector (make_number (4), Qnil); |
1fb3821b JD |
2735 | AREF (vec, 0) = SYMBOL_NAME (x_atom_to_symbol (FRAME_X_DISPLAY (f), |
2736 | event->message_type)); | |
2737 | AREF (vec, 1) = frame; | |
d2f14999 | 2738 | AREF (vec, 2) = make_number (event->format); |
1fb3821b | 2739 | AREF (vec, 3) = x_property_data_to_lisp (f, |
31f16913 | 2740 | data, |
1fb3821b JD |
2741 | event->message_type, |
2742 | event->format, | |
2743 | size); | |
2744 | ||
2745 | mouse_position_for_drop (f, &x, &y); | |
2746 | bufp->kind = DRAG_N_DROP_EVENT; | |
862c94ca | 2747 | bufp->frame_or_window = frame; |
1fb3821b JD |
2748 | bufp->timestamp = CurrentTime; |
2749 | bufp->x = make_number (x); | |
2750 | bufp->y = make_number (y); | |
862c94ca | 2751 | bufp->arg = vec; |
1fb3821b JD |
2752 | bufp->modifiers = 0; |
2753 | ||
2754 | return 1; | |
2755 | } | |
2756 | ||
2757 | DEFUN ("x-send-client-message", Fx_send_client_event, | |
2758 | Sx_send_client_message, 6, 6, 0, | |
2759 | doc: /* Send a client message of MESSAGE-TYPE to window DEST on DISPLAY. | |
2760 | ||
2761 | For DISPLAY, specify either a frame or a display name (a string). | |
2762 | If DISPLAY is nil, that stands for the selected frame's display. | |
2763 | DEST may be a number, in which case it is a Window id. The value 0 may | |
2764 | be used to send to the root window of the DISPLAY. | |
2765 | If DEST is a cons, it is converted to a 32 bit number | |
2766 | with the high 16 bits from the car and the lower 16 bit from the cdr. That | |
2767 | number is then used as a window id. | |
2768 | If DEST is a frame the event is sent to the outer window of that frame. | |
2769 | Nil means the currently selected frame. | |
2770 | If DEST is the string "PointerWindow" the event is sent to the window that | |
2771 | contains the pointer. If DEST is the string "InputFocus" the event is | |
2772 | sent to the window that has the input focus. | |
2773 | FROM is the frame sending the event. Use nil for currently selected frame. | |
2774 | MESSAGE-TYPE is the name of an Atom as a string. | |
2775 | FORMAT must be one of 8, 16 or 32 and determines the size of the values in | |
2776 | bits. VALUES is a list of numbers, cons and/or strings containing the values | |
2777 | to send. If a value is a string, it is converted to an Atom and the value of | |
2778 | the Atom is sent. If a value is a cons, it is converted to a 32 bit number | |
2779 | with the high 16 bits from the car and the lower 16 bit from the cdr. | |
2780 | If more values than fits into the event is given, the excessive values | |
2781 | are ignored. */) | |
2782 | (display, dest, from, message_type, format, values) | |
2783 | Lisp_Object display, dest, from, message_type, format, values; | |
2784 | { | |
2785 | struct x_display_info *dpyinfo = check_x_display_info (display); | |
2786 | Window wdest; | |
2787 | XEvent event; | |
2788 | Lisp_Object cons; | |
2789 | int size; | |
2790 | struct frame *f = check_x_frame (from); | |
1fb3821b JD |
2791 | int to_root; |
2792 | ||
2793 | CHECK_STRING (message_type); | |
2794 | CHECK_NUMBER (format); | |
2795 | CHECK_CONS (values); | |
2796 | ||
2797 | if (x_check_property_data (values) == -1) | |
2798 | error ("Bad data in VALUES, must be number, cons or string"); | |
2799 | ||
2800 | event.xclient.type = ClientMessage; | |
2801 | event.xclient.format = XFASTINT (format); | |
2802 | ||
2803 | if (event.xclient.format != 8 && event.xclient.format != 16 | |
2804 | && event.xclient.format != 32) | |
2805 | error ("FORMAT must be one of 8, 16 or 32"); | |
a0ecb2ac | 2806 | |
1fb3821b JD |
2807 | if (FRAMEP (dest) || NILP (dest)) |
2808 | { | |
2809 | struct frame *fdest = check_x_frame (dest); | |
2810 | wdest = FRAME_OUTER_WINDOW (fdest); | |
2811 | } | |
2812 | else if (STRINGP (dest)) | |
2813 | { | |
2814 | if (strcmp (SDATA (dest), "PointerWindow") == 0) | |
2815 | wdest = PointerWindow; | |
2816 | else if (strcmp (SDATA (dest), "InputFocus") == 0) | |
2817 | wdest = InputFocus; | |
2818 | else | |
2819 | error ("DEST as a string must be one of PointerWindow or InputFocus"); | |
2820 | } | |
2821 | else if (INTEGERP (dest)) | |
2822 | wdest = (Window) XFASTINT (dest); | |
2823 | else if (FLOATP (dest)) | |
ff59904a | 2824 | wdest = (Window) XFLOAT_DATA (dest); |
1fb3821b JD |
2825 | else if (CONSP (dest)) |
2826 | { | |
2827 | if (! NUMBERP (XCAR (dest)) || ! NUMBERP (XCDR (dest))) | |
2828 | error ("Both car and cdr for DEST must be numbers"); | |
2829 | else | |
2830 | wdest = (Window) cons_to_long (dest); | |
2831 | } | |
2832 | else | |
2833 | error ("DEST must be a frame, nil, string, number or cons"); | |
2834 | ||
2835 | if (wdest == 0) wdest = dpyinfo->root_window; | |
2836 | to_root = wdest == dpyinfo->root_window; | |
2837 | ||
2838 | for (cons = values, size = 0; CONSP (cons); cons = XCDR (cons), ++size) | |
2839 | ; | |
2840 | ||
2841 | BLOCK_INPUT; | |
2842 | ||
2843 | event.xclient.message_type | |
2844 | = XInternAtom (dpyinfo->display, SDATA (message_type), False); | |
2845 | event.xclient.display = dpyinfo->display; | |
2846 | ||
2847 | /* Some clients (metacity for example) expects sending window to be here | |
2848 | when sending to the root window. */ | |
2849 | event.xclient.window = to_root ? FRAME_OUTER_WINDOW (f) : wdest; | |
2850 | ||
6e816df5 | 2851 | |
e22cf39c JD |
2852 | memset (event.xclient.data.b, 0, sizeof (event.xclient.data.b)); |
2853 | x_fill_property_data (dpyinfo->display, values, event.xclient.data.b, | |
2854 | event.xclient.format); | |
31f16913 | 2855 | |
1fb3821b JD |
2856 | /* If event mask is 0 the event is sent to the client that created |
2857 | the destination window. But if we are sending to the root window, | |
2858 | there is no such client. Then we set the event mask to 0xffff. The | |
2859 | event then goes to clients selecting for events on the root window. */ | |
9ba8e10d | 2860 | x_catch_errors (dpyinfo->display); |
1fb3821b JD |
2861 | { |
2862 | int propagate = to_root ? False : True; | |
2863 | unsigned mask = to_root ? 0xffff : 0; | |
2864 | XSendEvent (dpyinfo->display, wdest, propagate, mask, &event); | |
2865 | XFlush (dpyinfo->display); | |
2866 | } | |
4545fa20 | 2867 | x_uncatch_errors (); |
1fb3821b JD |
2868 | UNBLOCK_INPUT; |
2869 | ||
2870 | return Qnil; | |
2871 | } | |
2872 | ||
2873 | \f | |
ede4db72 RS |
2874 | void |
2875 | syms_of_xselect () | |
2876 | { | |
ede4db72 RS |
2877 | defsubr (&Sx_get_selection_internal); |
2878 | defsubr (&Sx_own_selection_internal); | |
2879 | defsubr (&Sx_disown_selection_internal); | |
2880 | defsubr (&Sx_selection_owner_p); | |
2881 | defsubr (&Sx_selection_exists_p); | |
2882 | ||
2883 | #ifdef CUT_BUFFER_SUPPORT | |
a87ed99c RS |
2884 | defsubr (&Sx_get_cut_buffer_internal); |
2885 | defsubr (&Sx_store_cut_buffer_internal); | |
2886 | defsubr (&Sx_rotate_cut_buffers_internal); | |
ede4db72 RS |
2887 | #endif |
2888 | ||
1fb3821b JD |
2889 | defsubr (&Sx_get_atom_name); |
2890 | defsubr (&Sx_send_client_message); | |
2891 | ||
ede4db72 RS |
2892 | reading_selection_reply = Fcons (Qnil, Qnil); |
2893 | staticpro (&reading_selection_reply); | |
2894 | reading_selection_window = 0; | |
2895 | reading_which_selection = 0; | |
2896 | ||
2897 | property_change_wait_list = 0; | |
2f65feb6 | 2898 | prop_location_identifier = 0; |
ede4db72 RS |
2899 | property_change_reply = Fcons (Qnil, Qnil); |
2900 | staticpro (&property_change_reply); | |
2901 | ||
2902 | Vselection_alist = Qnil; | |
2903 | staticpro (&Vselection_alist); | |
2904 | ||
2905 | DEFVAR_LISP ("selection-converter-alist", &Vselection_converter_alist, | |
8c1a1077 PJ |
2906 | doc: /* An alist associating X Windows selection-types with functions. |
2907 | These functions are called to convert the selection, with three args: | |
2908 | the name of the selection (typically `PRIMARY', `SECONDARY', or `CLIPBOARD'); | |
2909 | a desired type to which the selection should be converted; | |
2910 | and the local selection value (whatever was given to `x-own-selection'). | |
2911 | ||
2912 | The function should return the value to send to the X server | |
2913 | \(typically a string). A return value of nil | |
2914 | means that the conversion could not be done. | |
2915 | A return value which is the symbol `NULL' | |
2916 | means that a side-effect was executed, | |
2917 | and there is no meaningful selection value. */); | |
ede4db72 RS |
2918 | Vselection_converter_alist = Qnil; |
2919 | ||
c917a8de | 2920 | DEFVAR_LISP ("x-lost-selection-functions", &Vx_lost_selection_functions, |
8c1a1077 PJ |
2921 | doc: /* A list of functions to be called when Emacs loses an X selection. |
2922 | \(This happens when some other X client makes its own selection | |
2923 | or when a Lisp program explicitly clears the selection.) | |
2924 | The functions are called with one argument, the selection type | |
2925 | \(a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'). */); | |
c917a8de | 2926 | Vx_lost_selection_functions = Qnil; |
ede4db72 | 2927 | |
c917a8de | 2928 | DEFVAR_LISP ("x-sent-selection-functions", &Vx_sent_selection_functions, |
8c1a1077 PJ |
2929 | doc: /* A list of functions to be called when Emacs answers a selection request. |
2930 | The functions are called with four arguments: | |
2931 | - the selection name (typically `PRIMARY', `SECONDARY', or `CLIPBOARD'); | |
2932 | - the selection-type which Emacs was asked to convert the | |
2933 | selection into before sending (for example, `STRING' or `LENGTH'); | |
2934 | - a flag indicating success or failure for responding to the request. | |
2935 | We might have failed (and declined the request) for any number of reasons, | |
2936 | including being asked for a selection that we no longer own, or being asked | |
2937 | to convert into a type that we don't know about or that is inappropriate. | |
2938 | This hook doesn't let you change the behavior of Emacs's selection replies, | |
2939 | it merely informs you that they have happened. */); | |
c917a8de | 2940 | Vx_sent_selection_functions = Qnil; |
ede4db72 | 2941 | |
93e4ce1b | 2942 | DEFVAR_LISP ("selection-coding-system", &Vselection_coding_system, |
8c1a1077 PJ |
2943 | doc: /* Coding system for communicating with other X clients. |
2944 | When sending or receiving text via cut_buffer, selection, and clipboard, | |
2945 | the text is encoded or decoded by this coding system. | |
5a79ea57 EZ |
2946 | The default value is `compound-text-with-extensions'. */); |
2947 | Vselection_coding_system = intern ("compound-text-with-extensions"); | |
2584c9ec | 2948 | |
16cd5029 | 2949 | DEFVAR_LISP ("next-selection-coding-system", &Vnext_selection_coding_system, |
8c1a1077 PJ |
2950 | doc: /* Coding system for the next communication with other X clients. |
2951 | Usually, `selection-coding-system' is used for communicating with | |
f8f8d464 JB |
2952 | other X clients. But, if this variable is set, it is used for the |
2953 | next communication only. After the communication, this variable is | |
8c1a1077 | 2954 | set to nil. */); |
16cd5029 KH |
2955 | Vnext_selection_coding_system = Qnil; |
2956 | ||
ede4db72 | 2957 | DEFVAR_INT ("x-selection-timeout", &x_selection_timeout, |
8c1a1077 PJ |
2958 | doc: /* Number of milliseconds to wait for a selection reply. |
2959 | If the selection owner doesn't reply in this time, we give up. | |
2960 | A value of 0 means wait as long as necessary. This is initialized from the | |
2961 | \"*selectionTimeout\" resource. */); | |
ede4db72 RS |
2962 | x_selection_timeout = 0; |
2963 | ||
2964 | QPRIMARY = intern ("PRIMARY"); staticpro (&QPRIMARY); | |
2965 | QSECONDARY = intern ("SECONDARY"); staticpro (&QSECONDARY); | |
2966 | QSTRING = intern ("STRING"); staticpro (&QSTRING); | |
2967 | QINTEGER = intern ("INTEGER"); staticpro (&QINTEGER); | |
2968 | QCLIPBOARD = intern ("CLIPBOARD"); staticpro (&QCLIPBOARD); | |
2969 | QTIMESTAMP = intern ("TIMESTAMP"); staticpro (&QTIMESTAMP); | |
2970 | QTEXT = intern ("TEXT"); staticpro (&QTEXT); | |
e6c7c988 | 2971 | QCOMPOUND_TEXT = intern ("COMPOUND_TEXT"); staticpro (&QCOMPOUND_TEXT); |
5109c8dd | 2972 | QUTF8_STRING = intern ("UTF8_STRING"); staticpro (&QUTF8_STRING); |
ede4db72 RS |
2973 | QDELETE = intern ("DELETE"); staticpro (&QDELETE); |
2974 | QMULTIPLE = intern ("MULTIPLE"); staticpro (&QMULTIPLE); | |
2975 | QINCR = intern ("INCR"); staticpro (&QINCR); | |
2976 | QEMACS_TMP = intern ("_EMACS_TMP_"); staticpro (&QEMACS_TMP); | |
2977 | QTARGETS = intern ("TARGETS"); staticpro (&QTARGETS); | |
2978 | QATOM = intern ("ATOM"); staticpro (&QATOM); | |
2979 | QATOM_PAIR = intern ("ATOM_PAIR"); staticpro (&QATOM_PAIR); | |
2980 | QNULL = intern ("NULL"); staticpro (&QNULL); | |
5a79ea57 EZ |
2981 | Qcompound_text_with_extensions = intern ("compound-text-with-extensions"); |
2982 | staticpro (&Qcompound_text_with_extensions); | |
ede4db72 RS |
2983 | |
2984 | #ifdef CUT_BUFFER_SUPPORT | |
2985 | QCUT_BUFFER0 = intern ("CUT_BUFFER0"); staticpro (&QCUT_BUFFER0); | |
2986 | QCUT_BUFFER1 = intern ("CUT_BUFFER1"); staticpro (&QCUT_BUFFER1); | |
2987 | QCUT_BUFFER2 = intern ("CUT_BUFFER2"); staticpro (&QCUT_BUFFER2); | |
2988 | QCUT_BUFFER3 = intern ("CUT_BUFFER3"); staticpro (&QCUT_BUFFER3); | |
2989 | QCUT_BUFFER4 = intern ("CUT_BUFFER4"); staticpro (&QCUT_BUFFER4); | |
2990 | QCUT_BUFFER5 = intern ("CUT_BUFFER5"); staticpro (&QCUT_BUFFER5); | |
2991 | QCUT_BUFFER6 = intern ("CUT_BUFFER6"); staticpro (&QCUT_BUFFER6); | |
2992 | QCUT_BUFFER7 = intern ("CUT_BUFFER7"); staticpro (&QCUT_BUFFER7); | |
2993 | #endif | |
2994 | ||
e57ad4d8 KH |
2995 | Qforeign_selection = intern ("foreign-selection"); |
2996 | staticpro (&Qforeign_selection); | |
ede4db72 | 2997 | } |
ab5796a9 MB |
2998 | |
2999 | /* arch-tag: 7c293b0f-9918-4f69-8ac7-03e142307236 | |
3000 | (do not change this comment) */ |