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2408b3a1 | 1 | /* X Selection processing for Emacs. |
0b5538bd TTN |
2 | Copyright (C) 1993, 1994, 1995, 1996, 1997, 2000, 2001, 2002, 2003, |
3 | 2004, 2005 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 *)); | |
58 | static void x_reply_selection_request P_ ((struct input_event *, int, | |
59 | unsigned char *, int, Atom)); | |
60 | static int waiting_for_other_props_on_window P_ ((Display *, Window)); | |
61 | static struct prop_location *expect_property_change P_ ((Display *, Window, | |
62 | Atom, int)); | |
63 | static void unexpect_property_change P_ ((struct prop_location *)); | |
64 | static Lisp_Object wait_for_property_change_unwind P_ ((Lisp_Object)); | |
65 | static void wait_for_property_change P_ ((struct prop_location *)); | |
3a42401d JD |
66 | static Lisp_Object x_get_foreign_selection P_ ((Lisp_Object, |
67 | Lisp_Object, | |
68 | Lisp_Object)); | |
d9c0d4a3 GM |
69 | static void x_get_window_property P_ ((Display *, Window, Atom, |
70 | unsigned char **, int *, | |
71 | Atom *, int *, unsigned long *, int)); | |
72 | static void receive_incremental_selection P_ ((Display *, Window, Atom, | |
73 | Lisp_Object, unsigned, | |
74 | unsigned char **, int *, | |
75 | Atom *, int *, unsigned long *)); | |
76 | static Lisp_Object x_get_window_property_as_lisp_data P_ ((Display *, | |
77 | Window, Atom, | |
78 | Lisp_Object, Atom)); | |
79 | static Lisp_Object selection_data_to_lisp_data P_ ((Display *, unsigned char *, | |
80 | int, Atom, int)); | |
81 | static void lisp_data_to_selection_data P_ ((Display *, Lisp_Object, | |
82 | unsigned char **, Atom *, | |
83 | unsigned *, int *, int *)); | |
84 | static Lisp_Object clean_local_selection_data P_ ((Lisp_Object)); | |
85 | static void initialize_cut_buffers P_ ((Display *, Window)); | |
86 | ||
87 | ||
88 | /* Printing traces to stderr. */ | |
89 | ||
90 | #ifdef TRACE_SELECTION | |
91 | #define TRACE0(fmt) \ | |
92 | fprintf (stderr, "%d: " fmt "\n", getpid ()) | |
93 | #define TRACE1(fmt, a0) \ | |
94 | fprintf (stderr, "%d: " fmt "\n", getpid (), a0) | |
95 | #define TRACE2(fmt, a0, a1) \ | |
96 | fprintf (stderr, "%d: " fmt "\n", getpid (), a0, a1) | |
9c3ad9e1 JD |
97 | #define TRACE3(fmt, a0, a1, a2) \ |
98 | fprintf (stderr, "%d: " fmt "\n", getpid (), a0, a1, a2) | |
d9c0d4a3 GM |
99 | #else |
100 | #define TRACE0(fmt) (void) 0 | |
101 | #define TRACE1(fmt, a0) (void) 0 | |
102 | #define TRACE2(fmt, a0, a1) (void) 0 | |
9c3ad9e1 | 103 | #define TRACE3(fmt, a0, a1) (void) 0 |
d9c0d4a3 GM |
104 | #endif |
105 | ||
106 | ||
ede4db72 RS |
107 | #define CUT_BUFFER_SUPPORT |
108 | ||
ede4db72 RS |
109 | Lisp_Object QPRIMARY, QSECONDARY, QSTRING, QINTEGER, QCLIPBOARD, QTIMESTAMP, |
110 | QTEXT, QDELETE, QMULTIPLE, QINCR, QEMACS_TMP, QTARGETS, QATOM, QNULL, | |
111 | QATOM_PAIR; | |
112 | ||
e6c7c988 | 113 | Lisp_Object QCOMPOUND_TEXT; /* This is a type of selection. */ |
5109c8dd | 114 | Lisp_Object QUTF8_STRING; /* This is a type of selection. */ |
e6c7c988 | 115 | |
5a79ea57 | 116 | Lisp_Object Qcompound_text_with_extensions; |
fbbe0ace | 117 | |
ede4db72 RS |
118 | #ifdef CUT_BUFFER_SUPPORT |
119 | Lisp_Object QCUT_BUFFER0, QCUT_BUFFER1, QCUT_BUFFER2, QCUT_BUFFER3, | |
120 | QCUT_BUFFER4, QCUT_BUFFER5, QCUT_BUFFER6, QCUT_BUFFER7; | |
121 | #endif | |
122 | ||
c917a8de SM |
123 | static Lisp_Object Vx_lost_selection_functions; |
124 | static Lisp_Object Vx_sent_selection_functions; | |
2584c9ec KH |
125 | /* Coding system for communicating with other X clients via cutbuffer, |
126 | selection, and clipboard. */ | |
93e4ce1b | 127 | static Lisp_Object Vselection_coding_system; |
ede4db72 | 128 | |
16cd5029 KH |
129 | /* Coding system for the next communicating with other X clients. */ |
130 | static Lisp_Object Vnext_selection_coding_system; | |
131 | ||
e57ad4d8 KH |
132 | static Lisp_Object Qforeign_selection; |
133 | ||
ede4db72 RS |
134 | /* If this is a smaller number than the max-request-size of the display, |
135 | emacs will use INCR selection transfer when the selection is larger | |
136 | than this. The max-request-size is usually around 64k, so if you want | |
1b65481e | 137 | emacs to use incremental selection transfers when the selection is |
ede4db72 | 138 | smaller than that, set this. I added this mostly for debugging the |
8f4f023f | 139 | incremental transfer stuff, but it might improve server performance. */ |
ede4db72 RS |
140 | #define MAX_SELECTION_QUANTUM 0xFFFFFF |
141 | ||
c3498e64 JB |
142 | #ifdef HAVE_X11R4 |
143 | #define SELECTION_QUANTUM(dpy) ((XMaxRequestSize(dpy) << 2) - 100) | |
144 | #else | |
145 | #define SELECTION_QUANTUM(dpy) (((dpy)->max_request_size << 2) - 100) | |
146 | #endif | |
ede4db72 | 147 | |
7da64e5c | 148 | /* The timestamp of the last input event Emacs received from the X server. */ |
29674445 KH |
149 | /* Defined in keyboard.c. */ |
150 | extern unsigned long last_event_timestamp; | |
ede4db72 RS |
151 | |
152 | /* This is an association list whose elements are of the form | |
118bd841 RS |
153 | ( SELECTION-NAME SELECTION-VALUE SELECTION-TIMESTAMP FRAME) |
154 | SELECTION-NAME is a lisp symbol, whose name is the name of an X Atom. | |
155 | SELECTION-VALUE is the value that emacs owns for that selection. | |
ede4db72 | 156 | It may be any kind of Lisp object. |
118bd841 | 157 | SELECTION-TIMESTAMP is the time at which emacs began owning this selection, |
ede4db72 | 158 | as a cons of two 16-bit numbers (making a 32 bit time.) |
118bd841 RS |
159 | FRAME is the frame for which we made the selection. |
160 | If there is an entry in this alist, then it can be assumed that Emacs owns | |
ede4db72 RS |
161 | that selection. |
162 | The only (eq) parts of this list that are visible from Lisp are the | |
8f4f023f RS |
163 | selection-values. */ |
164 | static Lisp_Object Vselection_alist; | |
ede4db72 RS |
165 | |
166 | /* This is an alist whose CARs are selection-types (whose names are the same | |
167 | as the names of X Atoms) and whose CDRs are the names of Lisp functions to | |
1b65481e | 168 | call to convert the given Emacs selection value to a string representing |
ede4db72 | 169 | the given selection type. This is for Lisp-level extension of the emacs |
8f4f023f RS |
170 | selection handling. */ |
171 | static Lisp_Object Vselection_converter_alist; | |
ede4db72 RS |
172 | |
173 | /* If the selection owner takes too long to reply to a selection request, | |
8f4f023f | 174 | we give up on it. This is in milliseconds (0 = no timeout.) */ |
31ade731 | 175 | static EMACS_INT x_selection_timeout; |
ede4db72 | 176 | |
dd0fe424 KS |
177 | |
178 | \f | |
678b3958 KS |
179 | /* Define a queue to save up SELECTION_REQUEST_EVENT events for later |
180 | handling. */ | |
dd0fe424 KS |
181 | |
182 | struct selection_event_queue | |
183 | { | |
184 | struct input_event event; | |
185 | struct selection_event_queue *next; | |
186 | }; | |
187 | ||
188 | static struct selection_event_queue *selection_queue; | |
189 | ||
678b3958 | 190 | /* Nonzero means queue up SELECTION_REQUEST_EVENT events. */ |
dd0fe424 KS |
191 | |
192 | static int x_queue_selection_requests; | |
193 | ||
678b3958 | 194 | /* Queue up an SELECTION_REQUEST_EVENT *EVENT, to be processed later. */ |
dd0fe424 KS |
195 | |
196 | static void | |
197 | x_queue_event (event) | |
198 | struct input_event *event; | |
199 | { | |
200 | struct selection_event_queue *queue_tmp; | |
201 | ||
678b3958 KS |
202 | /* Don't queue repeated requests. |
203 | This only happens for large requests which uses the incremental protocol. */ | |
dd0fe424 KS |
204 | for (queue_tmp = selection_queue; queue_tmp; queue_tmp = queue_tmp->next) |
205 | { | |
206 | if (!bcmp (&queue_tmp->event, event, sizeof (*event))) | |
207 | { | |
678b3958 KS |
208 | TRACE1 ("DECLINE DUP SELECTION EVENT %08lx", (unsigned long)queue_tmp); |
209 | x_decline_selection_request (event); | |
dd0fe424 KS |
210 | return; |
211 | } | |
212 | } | |
213 | ||
214 | queue_tmp | |
215 | = (struct selection_event_queue *) xmalloc (sizeof (struct selection_event_queue)); | |
216 | ||
217 | if (queue_tmp != NULL) | |
218 | { | |
678b3958 | 219 | TRACE1 ("QUEUE SELECTION EVENT %08lx", (unsigned long)queue_tmp); |
dd0fe424 KS |
220 | queue_tmp->event = *event; |
221 | queue_tmp->next = selection_queue; | |
222 | selection_queue = queue_tmp; | |
223 | } | |
224 | } | |
225 | ||
678b3958 | 226 | /* Start queuing SELECTION_REQUEST_EVENT events. */ |
dd0fe424 KS |
227 | |
228 | static void | |
229 | x_start_queuing_selection_requests () | |
230 | { | |
231 | if (x_queue_selection_requests) | |
232 | abort (); | |
233 | ||
234 | x_queue_selection_requests++; | |
235 | TRACE1 ("x_start_queuing_selection_requests %d", x_queue_selection_requests); | |
236 | } | |
237 | ||
678b3958 | 238 | /* Stop queuing SELECTION_REQUEST_EVENT events. */ |
dd0fe424 KS |
239 | |
240 | static void | |
241 | x_stop_queuing_selection_requests () | |
242 | { | |
243 | TRACE1 ("x_stop_queuing_selection_requests %d", x_queue_selection_requests); | |
244 | --x_queue_selection_requests; | |
245 | ||
246 | /* Take all the queued events and put them back | |
247 | so that they get processed afresh. */ | |
248 | ||
249 | while (selection_queue != NULL) | |
250 | { | |
251 | struct selection_event_queue *queue_tmp = selection_queue; | |
678b3958 | 252 | TRACE1 ("RESTORE SELECTION EVENT %08lx", (unsigned long)queue_tmp); |
dd0fe424 KS |
253 | kbd_buffer_unget_event (&queue_tmp->event); |
254 | selection_queue = queue_tmp->next; | |
255 | xfree ((char *)queue_tmp); | |
256 | } | |
257 | } | |
258 | \f | |
259 | ||
1b65481e | 260 | /* This converts a Lisp symbol to a server Atom, avoiding a server |
ede4db72 RS |
261 | roundtrip whenever possible. */ |
262 | ||
263 | static Atom | |
5c3a351a RS |
264 | symbol_to_x_atom (dpyinfo, display, sym) |
265 | struct x_display_info *dpyinfo; | |
ede4db72 RS |
266 | Display *display; |
267 | Lisp_Object sym; | |
268 | { | |
269 | Atom val; | |
270 | if (NILP (sym)) return 0; | |
271 | if (EQ (sym, QPRIMARY)) return XA_PRIMARY; | |
272 | if (EQ (sym, QSECONDARY)) return XA_SECONDARY; | |
273 | if (EQ (sym, QSTRING)) return XA_STRING; | |
274 | if (EQ (sym, QINTEGER)) return XA_INTEGER; | |
275 | if (EQ (sym, QATOM)) return XA_ATOM; | |
5c3a351a RS |
276 | if (EQ (sym, QCLIPBOARD)) return dpyinfo->Xatom_CLIPBOARD; |
277 | if (EQ (sym, QTIMESTAMP)) return dpyinfo->Xatom_TIMESTAMP; | |
278 | if (EQ (sym, QTEXT)) return dpyinfo->Xatom_TEXT; | |
e6c7c988 | 279 | if (EQ (sym, QCOMPOUND_TEXT)) return dpyinfo->Xatom_COMPOUND_TEXT; |
5109c8dd | 280 | if (EQ (sym, QUTF8_STRING)) return dpyinfo->Xatom_UTF8_STRING; |
5c3a351a RS |
281 | if (EQ (sym, QDELETE)) return dpyinfo->Xatom_DELETE; |
282 | if (EQ (sym, QMULTIPLE)) return dpyinfo->Xatom_MULTIPLE; | |
283 | if (EQ (sym, QINCR)) return dpyinfo->Xatom_INCR; | |
284 | if (EQ (sym, QEMACS_TMP)) return dpyinfo->Xatom_EMACS_TMP; | |
285 | if (EQ (sym, QTARGETS)) return dpyinfo->Xatom_TARGETS; | |
286 | if (EQ (sym, QNULL)) return dpyinfo->Xatom_NULL; | |
ede4db72 RS |
287 | #ifdef CUT_BUFFER_SUPPORT |
288 | if (EQ (sym, QCUT_BUFFER0)) return XA_CUT_BUFFER0; | |
289 | if (EQ (sym, QCUT_BUFFER1)) return XA_CUT_BUFFER1; | |
290 | if (EQ (sym, QCUT_BUFFER2)) return XA_CUT_BUFFER2; | |
291 | if (EQ (sym, QCUT_BUFFER3)) return XA_CUT_BUFFER3; | |
292 | if (EQ (sym, QCUT_BUFFER4)) return XA_CUT_BUFFER4; | |
293 | if (EQ (sym, QCUT_BUFFER5)) return XA_CUT_BUFFER5; | |
294 | if (EQ (sym, QCUT_BUFFER6)) return XA_CUT_BUFFER6; | |
295 | if (EQ (sym, QCUT_BUFFER7)) return XA_CUT_BUFFER7; | |
296 | #endif | |
297 | if (!SYMBOLP (sym)) abort (); | |
298 | ||
d5db4077 | 299 | TRACE1 (" XInternAtom %s", (char *) SDATA (SYMBOL_NAME (sym))); |
ede4db72 | 300 | BLOCK_INPUT; |
d5db4077 | 301 | val = XInternAtom (display, (char *) SDATA (SYMBOL_NAME (sym)), False); |
ede4db72 RS |
302 | UNBLOCK_INPUT; |
303 | return val; | |
304 | } | |
305 | ||
306 | ||
307 | /* This converts a server Atom to a Lisp symbol, avoiding server roundtrips | |
308 | and calls to intern whenever possible. */ | |
309 | ||
310 | static Lisp_Object | |
d9c0d4a3 GM |
311 | x_atom_to_symbol (dpy, atom) |
312 | Display *dpy; | |
ede4db72 RS |
313 | Atom atom; |
314 | { | |
d9c0d4a3 | 315 | struct x_display_info *dpyinfo; |
ede4db72 RS |
316 | char *str; |
317 | Lisp_Object val; | |
1b65481e | 318 | |
d9c0d4a3 GM |
319 | if (! atom) |
320 | return Qnil; | |
1b65481e | 321 | |
7da64e5c RS |
322 | switch (atom) |
323 | { | |
324 | case XA_PRIMARY: | |
325 | return QPRIMARY; | |
326 | case XA_SECONDARY: | |
327 | return QSECONDARY; | |
328 | case XA_STRING: | |
329 | return QSTRING; | |
330 | case XA_INTEGER: | |
331 | return QINTEGER; | |
332 | case XA_ATOM: | |
333 | return QATOM; | |
ede4db72 | 334 | #ifdef CUT_BUFFER_SUPPORT |
7da64e5c RS |
335 | case XA_CUT_BUFFER0: |
336 | return QCUT_BUFFER0; | |
337 | case XA_CUT_BUFFER1: | |
338 | return QCUT_BUFFER1; | |
339 | case XA_CUT_BUFFER2: | |
340 | return QCUT_BUFFER2; | |
341 | case XA_CUT_BUFFER3: | |
342 | return QCUT_BUFFER3; | |
343 | case XA_CUT_BUFFER4: | |
344 | return QCUT_BUFFER4; | |
345 | case XA_CUT_BUFFER5: | |
346 | return QCUT_BUFFER5; | |
347 | case XA_CUT_BUFFER6: | |
348 | return QCUT_BUFFER6; | |
349 | case XA_CUT_BUFFER7: | |
350 | return QCUT_BUFFER7; | |
ede4db72 | 351 | #endif |
7da64e5c RS |
352 | } |
353 | ||
d9c0d4a3 | 354 | dpyinfo = x_display_info_for_display (dpy); |
5c3a351a | 355 | if (atom == dpyinfo->Xatom_CLIPBOARD) |
7da64e5c | 356 | return QCLIPBOARD; |
5c3a351a | 357 | if (atom == dpyinfo->Xatom_TIMESTAMP) |
7da64e5c | 358 | return QTIMESTAMP; |
5c3a351a | 359 | if (atom == dpyinfo->Xatom_TEXT) |
7da64e5c | 360 | return QTEXT; |
e6c7c988 KH |
361 | if (atom == dpyinfo->Xatom_COMPOUND_TEXT) |
362 | return QCOMPOUND_TEXT; | |
5109c8dd KH |
363 | if (atom == dpyinfo->Xatom_UTF8_STRING) |
364 | return QUTF8_STRING; | |
5c3a351a | 365 | if (atom == dpyinfo->Xatom_DELETE) |
7da64e5c | 366 | return QDELETE; |
5c3a351a | 367 | if (atom == dpyinfo->Xatom_MULTIPLE) |
7da64e5c | 368 | return QMULTIPLE; |
5c3a351a | 369 | if (atom == dpyinfo->Xatom_INCR) |
7da64e5c | 370 | return QINCR; |
5c3a351a | 371 | if (atom == dpyinfo->Xatom_EMACS_TMP) |
7da64e5c | 372 | return QEMACS_TMP; |
5c3a351a | 373 | if (atom == dpyinfo->Xatom_TARGETS) |
7da64e5c | 374 | return QTARGETS; |
5c3a351a | 375 | if (atom == dpyinfo->Xatom_NULL) |
7da64e5c | 376 | return QNULL; |
ede4db72 RS |
377 | |
378 | BLOCK_INPUT; | |
d9c0d4a3 | 379 | str = XGetAtomName (dpy, atom); |
ede4db72 | 380 | UNBLOCK_INPUT; |
d9c0d4a3 | 381 | TRACE1 ("XGetAtomName --> %s", str); |
ede4db72 RS |
382 | if (! str) return Qnil; |
383 | val = intern (str); | |
384 | BLOCK_INPUT; | |
0158abbc | 385 | /* This was allocated by Xlib, so use XFree. */ |
ede4db72 RS |
386 | XFree (str); |
387 | UNBLOCK_INPUT; | |
388 | return val; | |
389 | } | |
8a89415e | 390 | \f |
ede4db72 | 391 | /* Do protocol to assert ourself as a selection owner. |
1b65481e | 392 | Update the Vselection_alist so that we can reply to later requests for |
ede4db72 RS |
393 | our selection. */ |
394 | ||
395 | static void | |
396 | x_own_selection (selection_name, selection_value) | |
397 | Lisp_Object selection_name, selection_value; | |
398 | { | |
378c33ca GM |
399 | struct frame *sf = SELECTED_FRAME (); |
400 | Window selecting_window = FRAME_X_WINDOW (sf); | |
401 | Display *display = FRAME_X_DISPLAY (sf); | |
7da64e5c | 402 | Time time = last_event_timestamp; |
ede4db72 | 403 | Atom selection_atom; |
378c33ca | 404 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (sf); |
5a499696 | 405 | int count; |
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; | |
5a499696 | 411 | count = x_catch_errors (display); |
ede4db72 | 412 | XSetSelectionOwner (display, selection_atom, selecting_window, time); |
a7b24d46 | 413 | x_check_errors (display, "Can't set selection: %s"); |
5a499696 | 414 | x_uncatch_errors (display, count); |
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; | |
d9c0d4a3 | 575 | int count; |
1b65481e | 576 | |
ede4db72 RS |
577 | reply.type = SelectionNotify; |
578 | reply.display = SELECTION_EVENT_DISPLAY (event); | |
5d0ba25b | 579 | reply.requestor = SELECTION_EVENT_REQUESTOR (event); |
ede4db72 RS |
580 | reply.selection = SELECTION_EVENT_SELECTION (event); |
581 | reply.time = SELECTION_EVENT_TIME (event); | |
582 | reply.target = SELECTION_EVENT_TARGET (event); | |
583 | reply.property = None; | |
584 | ||
d9c0d4a3 GM |
585 | /* The reason for the error may be that the receiver has |
586 | died in the meantime. Handle that case. */ | |
ede4db72 | 587 | BLOCK_INPUT; |
d9c0d4a3 GM |
588 | count = x_catch_errors (reply.display); |
589 | XSendEvent (reply.display, reply.requestor, False, 0L, (XEvent *) &reply); | |
5c3a351a | 590 | XFlush (reply.display); |
d9c0d4a3 | 591 | x_uncatch_errors (reply.display, count); |
ede4db72 RS |
592 | UNBLOCK_INPUT; |
593 | } | |
594 | ||
595 | /* This is the selection request currently being processed. | |
596 | It is set to zero when the request is fully processed. */ | |
597 | static struct input_event *x_selection_current_request; | |
598 | ||
ca29f2b8 GM |
599 | /* Display info in x_selection_request. */ |
600 | ||
601 | static struct x_display_info *selection_request_dpyinfo; | |
602 | ||
ede4db72 | 603 | /* Used as an unwind-protect clause so that, if a selection-converter signals |
2a1a4c9d | 604 | an error, we tell the requester that we were unable to do what they wanted |
ede4db72 RS |
605 | before we throw to top-level or go into the debugger or whatever. */ |
606 | ||
607 | static Lisp_Object | |
608 | x_selection_request_lisp_error (ignore) | |
609 | Lisp_Object ignore; | |
610 | { | |
ca29f2b8 GM |
611 | if (x_selection_current_request != 0 |
612 | && selection_request_dpyinfo->display) | |
ede4db72 RS |
613 | x_decline_selection_request (x_selection_current_request); |
614 | return Qnil; | |
615 | } | |
616 | \f | |
d1f21a66 RS |
617 | |
618 | /* This stuff is so that INCR selections are reentrant (that is, so we can | |
619 | be servicing multiple INCR selection requests simultaneously.) I haven't | |
620 | actually tested that yet. */ | |
621 | ||
622 | /* Keep a list of the property changes that are awaited. */ | |
623 | ||
624 | struct prop_location | |
625 | { | |
626 | int identifier; | |
627 | Display *display; | |
628 | Window window; | |
629 | Atom property; | |
630 | int desired_state; | |
631 | int arrived; | |
632 | struct prop_location *next; | |
633 | }; | |
634 | ||
635 | static struct prop_location *expect_property_change (); | |
636 | static void wait_for_property_change (); | |
637 | static void unexpect_property_change (); | |
638 | static int waiting_for_other_props_on_window (); | |
639 | ||
640 | static int prop_location_identifier; | |
641 | ||
642 | static Lisp_Object property_change_reply; | |
643 | ||
644 | static struct prop_location *property_change_reply_object; | |
645 | ||
646 | static struct prop_location *property_change_wait_list; | |
55b2d45d RS |
647 | |
648 | static Lisp_Object | |
dd0fe424 KS |
649 | queue_selection_requests_unwind (tem) |
650 | Lisp_Object tem; | |
55b2d45d | 651 | { |
dd0fe424 | 652 | x_stop_queuing_selection_requests (); |
ab552306 | 653 | return Qnil; |
55b2d45d RS |
654 | } |
655 | ||
656 | /* Return some frame whose display info is DPYINFO. | |
657 | Return nil if there is none. */ | |
658 | ||
659 | static Lisp_Object | |
660 | some_frame_on_display (dpyinfo) | |
661 | struct x_display_info *dpyinfo; | |
662 | { | |
663 | Lisp_Object list, frame; | |
664 | ||
665 | FOR_EACH_FRAME (list, frame) | |
666 | { | |
667 | if (FRAME_X_DISPLAY_INFO (XFRAME (frame)) == dpyinfo) | |
668 | return frame; | |
669 | } | |
670 | ||
671 | return Qnil; | |
672 | } | |
d1f21a66 | 673 | \f |
ede4db72 RS |
674 | /* Send the reply to a selection request event EVENT. |
675 | TYPE is the type of selection data requested. | |
676 | DATA and SIZE describe the data to send, already converted. | |
677 | FORMAT is the unit-size (in bits) of the data to be transmitted. */ | |
678 | ||
679 | static void | |
680 | x_reply_selection_request (event, format, data, size, type) | |
681 | struct input_event *event; | |
682 | int format, size; | |
683 | unsigned char *data; | |
684 | Atom type; | |
685 | { | |
686 | XSelectionEvent reply; | |
687 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
5d0ba25b | 688 | Window window = SELECTION_EVENT_REQUESTOR (event); |
ede4db72 RS |
689 | int bytes_remaining; |
690 | int format_bytes = format/8; | |
691 | int max_bytes = SELECTION_QUANTUM (display); | |
5c3a351a | 692 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
5a499696 | 693 | int count; |
ede4db72 RS |
694 | |
695 | if (max_bytes > MAX_SELECTION_QUANTUM) | |
696 | max_bytes = MAX_SELECTION_QUANTUM; | |
697 | ||
698 | reply.type = SelectionNotify; | |
699 | reply.display = display; | |
5d0ba25b | 700 | reply.requestor = window; |
ede4db72 RS |
701 | reply.selection = SELECTION_EVENT_SELECTION (event); |
702 | reply.time = SELECTION_EVENT_TIME (event); | |
703 | reply.target = SELECTION_EVENT_TARGET (event); | |
704 | reply.property = SELECTION_EVENT_PROPERTY (event); | |
705 | if (reply.property == None) | |
706 | reply.property = reply.target; | |
707 | ||
708 | /* #### XChangeProperty can generate BadAlloc, and we must handle it! */ | |
afe1529d | 709 | BLOCK_INPUT; |
ad7f9d12 | 710 | count = x_catch_errors (display); |
ede4db72 | 711 | |
9c3ad9e1 JD |
712 | #ifdef TRACE_SELECTION |
713 | { | |
714 | static int cnt; | |
715 | char *sel = XGetAtomName (display, reply.selection); | |
716 | char *tgt = XGetAtomName (display, reply.target); | |
717 | TRACE3 ("%s, target %s (%d)", sel, tgt, ++cnt); | |
718 | if (sel) XFree (sel); | |
719 | if (tgt) XFree (tgt); | |
720 | } | |
721 | #endif /* TRACE_SELECTION */ | |
722 | ||
ede4db72 RS |
723 | /* Store the data on the requested property. |
724 | If the selection is large, only store the first N bytes of it. | |
725 | */ | |
726 | bytes_remaining = size * format_bytes; | |
727 | if (bytes_remaining <= max_bytes) | |
728 | { | |
729 | /* Send all the data at once, with minimal handshaking. */ | |
d9c0d4a3 | 730 | TRACE1 ("Sending all %d bytes", bytes_remaining); |
ede4db72 RS |
731 | XChangeProperty (display, window, reply.property, type, format, |
732 | PropModeReplace, data, size); | |
733 | /* At this point, the selection was successfully stored; ack it. */ | |
2f65feb6 | 734 | XSendEvent (display, window, False, 0L, (XEvent *) &reply); |
ede4db72 RS |
735 | } |
736 | else | |
737 | { | |
738 | /* Send an INCR selection. */ | |
d1f21a66 | 739 | struct prop_location *wait_object; |
afe1529d | 740 | int had_errors; |
55b2d45d | 741 | Lisp_Object frame; |
ede4db72 | 742 | |
55b2d45d RS |
743 | frame = some_frame_on_display (dpyinfo); |
744 | ||
745 | /* If the display no longer has frames, we can't expect | |
746 | to get many more selection requests from it, so don't | |
747 | bother trying to queue them. */ | |
748 | if (!NILP (frame)) | |
749 | { | |
dd0fe424 | 750 | x_start_queuing_selection_requests (); |
55b2d45d RS |
751 | |
752 | record_unwind_protect (queue_selection_requests_unwind, | |
dd0fe424 | 753 | Qnil); |
55b2d45d | 754 | } |
2f65feb6 | 755 | |
19126e11 | 756 | if (x_window_to_frame (dpyinfo, window)) /* #### debug */ |
606140dd | 757 | error ("Attempt to transfer an INCR to ourself!"); |
1b65481e | 758 | |
d9c0d4a3 GM |
759 | TRACE2 ("Start sending %d bytes incrementally (%s)", |
760 | bytes_remaining, XGetAtomName (display, reply.property)); | |
d1f21a66 RS |
761 | wait_object = expect_property_change (display, window, reply.property, |
762 | PropertyDelete); | |
ede4db72 | 763 | |
d9c0d4a3 GM |
764 | TRACE1 ("Set %s to number of bytes to send", |
765 | XGetAtomName (display, reply.property)); | |
e22cf39c JD |
766 | { |
767 | /* XChangeProperty expects an array of long even if long is more than | |
768 | 32 bits. */ | |
769 | long value[1]; | |
770 | ||
771 | value[0] = bytes_remaining; | |
772 | XChangeProperty (display, window, reply.property, dpyinfo->Xatom_INCR, | |
773 | 32, PropModeReplace, | |
774 | (unsigned char *) value, 1); | |
775 | } | |
776 | ||
ede4db72 | 777 | XSelectInput (display, window, PropertyChangeMask); |
1b65481e | 778 | |
ede4db72 | 779 | /* Tell 'em the INCR data is there... */ |
d9c0d4a3 | 780 | TRACE0 ("Send SelectionNotify event"); |
55b2d45d | 781 | XSendEvent (display, window, False, 0L, (XEvent *) &reply); |
5c3a351a | 782 | XFlush (display); |
afe1529d RS |
783 | |
784 | had_errors = x_had_errors_p (display); | |
2f65feb6 | 785 | UNBLOCK_INPUT; |
ede4db72 | 786 | |
2a1a4c9d | 787 | /* First, wait for the requester to ack by deleting the property. |
ede4db72 | 788 | This can run random lisp code (process handlers) or signal. */ |
afe1529d | 789 | if (! had_errors) |
d9c0d4a3 GM |
790 | { |
791 | TRACE1 ("Waiting for ACK (deletion of %s)", | |
792 | XGetAtomName (display, reply.property)); | |
793 | wait_for_property_change (wait_object); | |
794 | } | |
dd0fe424 KS |
795 | else |
796 | unexpect_property_change (wait_object); | |
ede4db72 | 797 | |
d9c0d4a3 | 798 | TRACE0 ("Got ACK"); |
ede4db72 RS |
799 | while (bytes_remaining) |
800 | { | |
e22cf39c JD |
801 | int i = ((bytes_remaining < max_bytes) |
802 | ? bytes_remaining | |
803 | : max_bytes); | |
2f65feb6 RS |
804 | |
805 | BLOCK_INPUT; | |
806 | ||
d1f21a66 RS |
807 | wait_object |
808 | = expect_property_change (display, window, reply.property, | |
809 | PropertyDelete); | |
d9c0d4a3 GM |
810 | |
811 | TRACE1 ("Sending increment of %d bytes", i); | |
812 | TRACE1 ("Set %s to increment data", | |
813 | XGetAtomName (display, reply.property)); | |
1b65481e | 814 | |
ede4db72 RS |
815 | /* Append the next chunk of data to the property. */ |
816 | XChangeProperty (display, window, reply.property, type, format, | |
817 | PropModeAppend, data, i / format_bytes); | |
818 | bytes_remaining -= i; | |
819 | data += i; | |
5c3a351a | 820 | XFlush (display); |
afe1529d | 821 | had_errors = x_had_errors_p (display); |
2f65feb6 | 822 | UNBLOCK_INPUT; |
ede4db72 | 823 | |
afe1529d RS |
824 | if (had_errors) |
825 | break; | |
826 | ||
2a1a4c9d | 827 | /* Now wait for the requester to ack this chunk by deleting the |
d9c0d4a3 GM |
828 | property. This can run random lisp code or signal. */ |
829 | TRACE1 ("Waiting for increment ACK (deletion of %s)", | |
830 | XGetAtomName (display, reply.property)); | |
d1f21a66 | 831 | wait_for_property_change (wait_object); |
ede4db72 | 832 | } |
1b65481e | 833 | |
d9c0d4a3 GM |
834 | /* Now write a zero-length chunk to the property to tell the |
835 | requester that we're done. */ | |
2f65feb6 | 836 | BLOCK_INPUT; |
ede4db72 RS |
837 | if (! waiting_for_other_props_on_window (display, window)) |
838 | XSelectInput (display, window, 0L); | |
839 | ||
d9c0d4a3 GM |
840 | TRACE1 ("Set %s to a 0-length chunk to indicate EOF", |
841 | XGetAtomName (display, reply.property)); | |
ede4db72 RS |
842 | XChangeProperty (display, window, reply.property, type, format, |
843 | PropModeReplace, data, 0); | |
d9c0d4a3 | 844 | TRACE0 ("Done sending incrementally"); |
ede4db72 | 845 | } |
afe1529d | 846 | |
ceabd272 | 847 | /* rms, 2003-01-03: I think I have fixed this bug. */ |
47a6ac17 GM |
848 | /* The window we're communicating with may have been deleted |
849 | in the meantime (that's a real situation from a bug report). | |
850 | In this case, there may be events in the event queue still | |
851 | refering to the deleted window, and we'll get a BadWindow error | |
852 | in XTread_socket when processing the events. I don't have | |
853 | an idea how to fix that. gerd, 2001-01-98. */ | |
844fc085 JD |
854 | /* 2004-09-10: XSync and UNBLOCK so that possible protocol errors are |
855 | delivered before uncatch errors. */ | |
856 | XSync (display, False); | |
afe1529d | 857 | UNBLOCK_INPUT; |
0608b1a0 JD |
858 | |
859 | /* GTK queues events in addition to the queue in Xlib. So we | |
860 | UNBLOCK to enter the event loop and get possible errors delivered, | |
861 | and then BLOCK again because x_uncatch_errors requires it. */ | |
862 | BLOCK_INPUT; | |
844fc085 | 863 | x_uncatch_errors (display, count); |
0608b1a0 | 864 | UNBLOCK_INPUT; |
ede4db72 RS |
865 | } |
866 | \f | |
867 | /* Handle a SelectionRequest event EVENT. | |
868 | This is called from keyboard.c when such an event is found in the queue. */ | |
869 | ||
dd0fe424 | 870 | static void |
ede4db72 RS |
871 | x_handle_selection_request (event) |
872 | struct input_event *event; | |
873 | { | |
874 | struct gcpro gcpro1, gcpro2, gcpro3; | |
9d2d1dd8 | 875 | Lisp_Object local_selection_data; |
ede4db72 | 876 | Lisp_Object selection_symbol; |
9d2d1dd8 KH |
877 | Lisp_Object target_symbol; |
878 | Lisp_Object converted_selection; | |
ede4db72 | 879 | Time local_selection_time; |
9d2d1dd8 | 880 | Lisp_Object successful_p; |
ede4db72 | 881 | int count; |
5c3a351a RS |
882 | struct x_display_info *dpyinfo |
883 | = x_display_info_for_display (SELECTION_EVENT_DISPLAY (event)); | |
ede4db72 | 884 | |
678b3958 KS |
885 | TRACE2 ("x_handle_selection_request, from=0x%08lx time=%lu", |
886 | (unsigned long) SELECTION_EVENT_REQUESTOR (event), | |
887 | (unsigned long) SELECTION_EVENT_TIME (event)); | |
dd0fe424 | 888 | |
9d2d1dd8 KH |
889 | local_selection_data = Qnil; |
890 | target_symbol = Qnil; | |
891 | converted_selection = Qnil; | |
892 | successful_p = Qnil; | |
893 | ||
ede4db72 RS |
894 | GCPRO3 (local_selection_data, converted_selection, target_symbol); |
895 | ||
d9c0d4a3 | 896 | selection_symbol = x_atom_to_symbol (SELECTION_EVENT_DISPLAY (event), |
ede4db72 RS |
897 | SELECTION_EVENT_SELECTION (event)); |
898 | ||
899 | local_selection_data = assq_no_quit (selection_symbol, Vselection_alist); | |
ede4db72 RS |
900 | |
901 | if (NILP (local_selection_data)) | |
902 | { | |
903 | /* Someone asked for the selection, but we don't have it any more. | |
904 | */ | |
905 | x_decline_selection_request (event); | |
906 | goto DONE; | |
907 | } | |
908 | ||
909 | local_selection_time = (Time) | |
8e713be6 | 910 | cons_to_long (XCAR (XCDR (XCDR (local_selection_data)))); |
ede4db72 RS |
911 | |
912 | if (SELECTION_EVENT_TIME (event) != CurrentTime | |
7da64e5c | 913 | && local_selection_time > SELECTION_EVENT_TIME (event)) |
ede4db72 RS |
914 | { |
915 | /* Someone asked for the selection, and we have one, but not the one | |
916 | they're looking for. | |
917 | */ | |
918 | x_decline_selection_request (event); | |
919 | goto DONE; | |
920 | } | |
921 | ||
ede4db72 | 922 | x_selection_current_request = event; |
331379bf | 923 | count = SPECPDL_INDEX (); |
ca29f2b8 | 924 | selection_request_dpyinfo = dpyinfo; |
ede4db72 RS |
925 | record_unwind_protect (x_selection_request_lisp_error, Qnil); |
926 | ||
d9c0d4a3 | 927 | target_symbol = x_atom_to_symbol (SELECTION_EVENT_DISPLAY (event), |
ede4db72 RS |
928 | SELECTION_EVENT_TARGET (event)); |
929 | ||
930 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
931 | if (EQ (target_symbol, QMULTIPLE)) | |
932 | target_symbol = fetch_multiple_target (event); | |
933 | #endif | |
1b65481e | 934 | |
ede4db72 | 935 | /* Convert lisp objects back into binary data */ |
1b65481e | 936 | |
ede4db72 | 937 | converted_selection |
5109c8dd | 938 | = x_get_local_selection (selection_symbol, target_symbol, 0); |
1b65481e | 939 | |
ede4db72 RS |
940 | if (! NILP (converted_selection)) |
941 | { | |
942 | unsigned char *data; | |
943 | unsigned int size; | |
944 | int format; | |
945 | Atom type; | |
aca39f42 RS |
946 | int nofree; |
947 | ||
2f65feb6 RS |
948 | lisp_data_to_selection_data (SELECTION_EVENT_DISPLAY (event), |
949 | converted_selection, | |
aca39f42 | 950 | &data, &type, &size, &format, &nofree); |
1b65481e | 951 | |
ede4db72 RS |
952 | x_reply_selection_request (event, format, data, size, type); |
953 | successful_p = Qt; | |
954 | ||
955 | /* Indicate we have successfully processed this event. */ | |
7da64e5c | 956 | x_selection_current_request = 0; |
ede4db72 | 957 | |
4feb31b2 | 958 | /* Use xfree, not XFree, because lisp_data_to_selection_data |
0158abbc | 959 | calls xmalloc itself. */ |
aca39f42 | 960 | if (!nofree) |
4feb31b2 | 961 | xfree (data); |
ede4db72 RS |
962 | } |
963 | unbind_to (count, Qnil); | |
964 | ||
965 | DONE: | |
966 | ||
ede4db72 RS |
967 | /* Let random lisp code notice that the selection has been asked for. */ |
968 | { | |
9d2d1dd8 | 969 | Lisp_Object rest; |
c917a8de | 970 | rest = Vx_sent_selection_functions; |
ede4db72 RS |
971 | if (!EQ (rest, Qunbound)) |
972 | for (; CONSP (rest); rest = Fcdr (rest)) | |
973 | call3 (Fcar (rest), selection_symbol, target_symbol, successful_p); | |
974 | } | |
4f06187f RS |
975 | |
976 | UNGCPRO; | |
ede4db72 RS |
977 | } |
978 | \f | |
e18e6130 | 979 | /* Handle a SelectionClear event EVENT, which indicates that some |
ede4db72 RS |
980 | client cleared out our previously asserted selection. |
981 | This is called from keyboard.c when such an event is found in the queue. */ | |
982 | ||
dd0fe424 | 983 | static void |
ede4db72 RS |
984 | x_handle_selection_clear (event) |
985 | struct input_event *event; | |
986 | { | |
987 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
988 | Atom selection = SELECTION_EVENT_SELECTION (event); | |
989 | Time changed_owner_time = SELECTION_EVENT_TIME (event); | |
1b65481e | 990 | |
ede4db72 RS |
991 | Lisp_Object selection_symbol, local_selection_data; |
992 | Time local_selection_time; | |
5c3a351a | 993 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
e18e6130 RS |
994 | struct x_display_info *t_dpyinfo; |
995 | ||
dd0fe424 KS |
996 | TRACE0 ("x_handle_selection_clear"); |
997 | ||
e18e6130 RS |
998 | /* If the new selection owner is also Emacs, |
999 | don't clear the new selection. */ | |
1000 | BLOCK_INPUT; | |
1001 | /* Check each display on the same terminal, | |
1002 | to see if this Emacs job now owns the selection | |
1003 | through that display. */ | |
1004 | for (t_dpyinfo = x_display_list; t_dpyinfo; t_dpyinfo = t_dpyinfo->next) | |
1005 | if (t_dpyinfo->kboard == dpyinfo->kboard) | |
1006 | { | |
1007 | Window owner_window | |
1008 | = XGetSelectionOwner (t_dpyinfo->display, selection); | |
1009 | if (x_window_to_frame (t_dpyinfo, owner_window) != 0) | |
1010 | { | |
1011 | UNBLOCK_INPUT; | |
1012 | return; | |
1013 | } | |
1014 | } | |
1015 | UNBLOCK_INPUT; | |
ede4db72 | 1016 | |
d9c0d4a3 | 1017 | selection_symbol = x_atom_to_symbol (display, selection); |
ede4db72 RS |
1018 | |
1019 | local_selection_data = assq_no_quit (selection_symbol, Vselection_alist); | |
1020 | ||
1021 | /* Well, we already believe that we don't own it, so that's just fine. */ | |
1022 | if (NILP (local_selection_data)) return; | |
1023 | ||
1024 | local_selection_time = (Time) | |
8e713be6 | 1025 | cons_to_long (XCAR (XCDR (XCDR (local_selection_data)))); |
ede4db72 RS |
1026 | |
1027 | /* This SelectionClear is for a selection that we no longer own, so we can | |
1028 | disregard it. (That is, we have reasserted the selection since this | |
1029 | request was generated.) */ | |
1030 | ||
1031 | if (changed_owner_time != CurrentTime | |
1032 | && local_selection_time > changed_owner_time) | |
1033 | return; | |
1034 | ||
1035 | /* Otherwise, we're really honest and truly being told to drop it. | |
1036 | Don't use Fdelq as that may QUIT;. */ | |
1037 | ||
1038 | if (EQ (local_selection_data, Fcar (Vselection_alist))) | |
1039 | Vselection_alist = Fcdr (Vselection_alist); | |
1040 | else | |
1041 | { | |
1042 | Lisp_Object rest; | |
1043 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) | |
8e713be6 | 1044 | if (EQ (local_selection_data, Fcar (XCDR (rest)))) |
ede4db72 | 1045 | { |
f3fbd155 | 1046 | XSETCDR (rest, Fcdr (XCDR (rest))); |
ede4db72 RS |
1047 | break; |
1048 | } | |
1049 | } | |
1050 | ||
1051 | /* Let random lisp code notice that the selection has been stolen. */ | |
1052 | ||
1053 | { | |
d1f21a66 | 1054 | Lisp_Object rest; |
c917a8de | 1055 | rest = Vx_lost_selection_functions; |
ede4db72 | 1056 | if (!EQ (rest, Qunbound)) |
d1f21a66 RS |
1057 | { |
1058 | for (; CONSP (rest); rest = Fcdr (rest)) | |
1059 | call1 (Fcar (rest), selection_symbol); | |
7c6b2ea4 | 1060 | prepare_menu_bars (); |
3007ebfb | 1061 | redisplay_preserve_echo_area (20); |
d1f21a66 | 1062 | } |
ede4db72 RS |
1063 | } |
1064 | } | |
1065 | ||
dd0fe424 KS |
1066 | void |
1067 | x_handle_selection_event (event) | |
1068 | struct input_event *event; | |
1069 | { | |
1070 | TRACE0 ("x_handle_selection_event"); | |
1071 | ||
1072 | if (event->kind == SELECTION_REQUEST_EVENT) | |
1073 | { | |
1074 | if (x_queue_selection_requests) | |
1075 | x_queue_event (event); | |
1076 | else | |
1077 | x_handle_selection_request (event); | |
1078 | } | |
1079 | else | |
1080 | x_handle_selection_clear (event); | |
1081 | } | |
1082 | ||
1083 | ||
118bd841 RS |
1084 | /* Clear all selections that were made from frame F. |
1085 | We do this when about to delete a frame. */ | |
1086 | ||
1087 | void | |
1088 | x_clear_frame_selections (f) | |
1089 | FRAME_PTR f; | |
1090 | { | |
1091 | Lisp_Object frame; | |
1092 | Lisp_Object rest; | |
1093 | ||
90851bbe | 1094 | XSETFRAME (frame, f); |
118bd841 RS |
1095 | |
1096 | /* Otherwise, we're really honest and truly being told to drop it. | |
1097 | Don't use Fdelq as that may QUIT;. */ | |
1098 | ||
0d199f9c RS |
1099 | /* Delete elements from the beginning of Vselection_alist. */ |
1100 | while (!NILP (Vselection_alist) | |
1101 | && EQ (frame, Fcar (Fcdr (Fcdr (Fcdr (Fcar (Vselection_alist))))))) | |
1102 | { | |
1103 | /* Let random Lisp code notice that the selection has been stolen. */ | |
1104 | Lisp_Object hooks, selection_symbol; | |
1105 | ||
c917a8de | 1106 | hooks = Vx_lost_selection_functions; |
0d199f9c RS |
1107 | selection_symbol = Fcar (Fcar (Vselection_alist)); |
1108 | ||
1109 | if (!EQ (hooks, Qunbound)) | |
1110 | { | |
1111 | for (; CONSP (hooks); hooks = Fcdr (hooks)) | |
1112 | call1 (Fcar (hooks), selection_symbol); | |
996b804d MB |
1113 | #if 0 /* This can crash when deleting a frame |
1114 | from x_connection_closed. Anyway, it seems unnecessary; | |
1115 | something else should cause a redisplay. */ | |
3007ebfb | 1116 | redisplay_preserve_echo_area (21); |
996b804d | 1117 | #endif |
0d199f9c RS |
1118 | } |
1119 | ||
1120 | Vselection_alist = Fcdr (Vselection_alist); | |
1121 | } | |
1122 | ||
1123 | /* Delete elements after the beginning of Vselection_alist. */ | |
118bd841 | 1124 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) |
8e713be6 | 1125 | if (EQ (frame, Fcar (Fcdr (Fcdr (Fcdr (Fcar (XCDR (rest)))))))) |
118bd841 RS |
1126 | { |
1127 | /* Let random Lisp code notice that the selection has been stolen. */ | |
1128 | Lisp_Object hooks, selection_symbol; | |
1129 | ||
c917a8de | 1130 | hooks = Vx_lost_selection_functions; |
8e713be6 | 1131 | selection_symbol = Fcar (Fcar (XCDR (rest))); |
118bd841 RS |
1132 | |
1133 | if (!EQ (hooks, Qunbound)) | |
1134 | { | |
1135 | for (; CONSP (hooks); hooks = Fcdr (hooks)) | |
1136 | call1 (Fcar (hooks), selection_symbol); | |
996b804d | 1137 | #if 0 /* See above */ |
3007ebfb | 1138 | redisplay_preserve_echo_area (22); |
996b804d | 1139 | #endif |
118bd841 | 1140 | } |
f3fbd155 | 1141 | XSETCDR (rest, Fcdr (XCDR (rest))); |
118bd841 RS |
1142 | break; |
1143 | } | |
1144 | } | |
ede4db72 | 1145 | \f |
ede4db72 RS |
1146 | /* Nonzero if any properties for DISPLAY and WINDOW |
1147 | are on the list of what we are waiting for. */ | |
1148 | ||
1149 | static int | |
1150 | waiting_for_other_props_on_window (display, window) | |
1151 | Display *display; | |
1152 | Window window; | |
1153 | { | |
1154 | struct prop_location *rest = property_change_wait_list; | |
1155 | while (rest) | |
1156 | if (rest->display == display && rest->window == window) | |
1157 | return 1; | |
1158 | else | |
1159 | rest = rest->next; | |
1160 | return 0; | |
1161 | } | |
1162 | ||
1163 | /* Add an entry to the list of property changes we are waiting for. | |
1164 | DISPLAY, WINDOW, PROPERTY, STATE describe what we will wait for. | |
1165 | The return value is a number that uniquely identifies | |
1166 | this awaited property change. */ | |
1167 | ||
d1f21a66 | 1168 | static struct prop_location * |
ede4db72 RS |
1169 | expect_property_change (display, window, property, state) |
1170 | Display *display; | |
1171 | Window window; | |
6c070502 | 1172 | Atom property; |
ede4db72 RS |
1173 | int state; |
1174 | { | |
d9c0d4a3 | 1175 | struct prop_location *pl = (struct prop_location *) xmalloc (sizeof *pl); |
2f65feb6 | 1176 | pl->identifier = ++prop_location_identifier; |
ede4db72 RS |
1177 | pl->display = display; |
1178 | pl->window = window; | |
1179 | pl->property = property; | |
1180 | pl->desired_state = state; | |
1181 | pl->next = property_change_wait_list; | |
d1f21a66 | 1182 | pl->arrived = 0; |
ede4db72 | 1183 | property_change_wait_list = pl; |
d1f21a66 | 1184 | return pl; |
ede4db72 RS |
1185 | } |
1186 | ||
1187 | /* Delete an entry from the list of property changes we are waiting for. | |
2f65feb6 | 1188 | IDENTIFIER is the number that uniquely identifies the entry. */ |
ede4db72 RS |
1189 | |
1190 | static void | |
d1f21a66 RS |
1191 | unexpect_property_change (location) |
1192 | struct prop_location *location; | |
ede4db72 RS |
1193 | { |
1194 | struct prop_location *prev = 0, *rest = property_change_wait_list; | |
1195 | while (rest) | |
1196 | { | |
d1f21a66 | 1197 | if (rest == location) |
ede4db72 RS |
1198 | { |
1199 | if (prev) | |
1200 | prev->next = rest->next; | |
1201 | else | |
1202 | property_change_wait_list = rest->next; | |
4feb31b2 | 1203 | xfree (rest); |
ede4db72 RS |
1204 | return; |
1205 | } | |
1206 | prev = rest; | |
1207 | rest = rest->next; | |
1208 | } | |
1209 | } | |
1210 | ||
2f65feb6 RS |
1211 | /* Remove the property change expectation element for IDENTIFIER. */ |
1212 | ||
1213 | static Lisp_Object | |
dd0fe424 KS |
1214 | wait_for_property_change_unwind (loc) |
1215 | Lisp_Object loc; | |
2f65feb6 | 1216 | { |
dd0fe424 KS |
1217 | struct prop_location *location = XSAVE_VALUE (loc)->pointer; |
1218 | ||
1219 | unexpect_property_change (location); | |
1220 | if (location == property_change_reply_object) | |
1221 | property_change_reply_object = 0; | |
ab552306 | 1222 | return Qnil; |
2f65feb6 RS |
1223 | } |
1224 | ||
ede4db72 | 1225 | /* Actually wait for a property change. |
2f65feb6 | 1226 | IDENTIFIER should be the value that expect_property_change returned. */ |
ede4db72 RS |
1227 | |
1228 | static void | |
d1f21a66 RS |
1229 | wait_for_property_change (location) |
1230 | struct prop_location *location; | |
ede4db72 | 1231 | { |
2f65feb6 | 1232 | int secs, usecs; |
aed13378 | 1233 | int count = SPECPDL_INDEX (); |
d1f21a66 | 1234 | |
dd0fe424 KS |
1235 | if (property_change_reply_object) |
1236 | abort (); | |
2f65feb6 RS |
1237 | |
1238 | /* Make sure to do unexpect_property_change if we quit or err. */ | |
dd0fe424 KS |
1239 | record_unwind_protect (wait_for_property_change_unwind, |
1240 | make_save_value (location, 0)); | |
2f65feb6 | 1241 | |
f3fbd155 | 1242 | XSETCAR (property_change_reply, Qnil); |
afe1529d | 1243 | property_change_reply_object = location; |
dd0fe424 | 1244 | |
afe1529d RS |
1245 | /* If the event we are waiting for arrives beyond here, it will set |
1246 | property_change_reply, because property_change_reply_object says so. */ | |
d1f21a66 RS |
1247 | if (! location->arrived) |
1248 | { | |
d1f21a66 RS |
1249 | secs = x_selection_timeout / 1000; |
1250 | usecs = (x_selection_timeout % 1000) * 1000; | |
d9c0d4a3 | 1251 | TRACE2 (" Waiting %d secs, %d usecs", secs, usecs); |
d64b707c KS |
1252 | wait_reading_process_output (secs, usecs, 0, 0, |
1253 | property_change_reply, NULL, 0); | |
d1f21a66 | 1254 | |
8e713be6 | 1255 | if (NILP (XCAR (property_change_reply))) |
d9c0d4a3 GM |
1256 | { |
1257 | TRACE0 (" Timed out"); | |
1258 | error ("Timed out waiting for property-notify event"); | |
1259 | } | |
d1f21a66 | 1260 | } |
2f65feb6 RS |
1261 | |
1262 | unbind_to (count, Qnil); | |
ede4db72 RS |
1263 | } |
1264 | ||
1265 | /* Called from XTread_socket in response to a PropertyNotify event. */ | |
1266 | ||
1267 | void | |
1268 | x_handle_property_notify (event) | |
1269 | XPropertyEvent *event; | |
1270 | { | |
1271 | struct prop_location *prev = 0, *rest = property_change_wait_list; | |
d9c0d4a3 | 1272 | |
ede4db72 RS |
1273 | while (rest) |
1274 | { | |
dd0fe424 KS |
1275 | if (!rest->arrived |
1276 | && rest->property == event->atom | |
ede4db72 RS |
1277 | && rest->window == event->window |
1278 | && rest->display == event->display | |
1279 | && rest->desired_state == event->state) | |
1280 | { | |
d9c0d4a3 GM |
1281 | TRACE2 ("Expected %s of property %s", |
1282 | (event->state == PropertyDelete ? "deletion" : "change"), | |
1283 | XGetAtomName (event->display, event->atom)); | |
ede4db72 | 1284 | |
d1f21a66 RS |
1285 | rest->arrived = 1; |
1286 | ||
ede4db72 RS |
1287 | /* If this is the one wait_for_property_change is waiting for, |
1288 | tell it to wake up. */ | |
d1f21a66 | 1289 | if (rest == property_change_reply_object) |
f3fbd155 | 1290 | XSETCAR (property_change_reply, Qt); |
ede4db72 | 1291 | |
ede4db72 RS |
1292 | return; |
1293 | } | |
1b65481e | 1294 | |
ede4db72 RS |
1295 | prev = rest; |
1296 | rest = rest->next; | |
1297 | } | |
ede4db72 RS |
1298 | } |
1299 | ||
1300 | ||
1301 | \f | |
1302 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1303 | ||
1304 | static Lisp_Object | |
1305 | fetch_multiple_target (event) | |
1306 | XSelectionRequestEvent *event; | |
1307 | { | |
1308 | Display *display = event->display; | |
5d0ba25b | 1309 | Window window = event->requestor; |
ede4db72 RS |
1310 | Atom target = event->target; |
1311 | Atom selection_atom = event->selection; | |
1312 | int result; | |
1313 | ||
1314 | return | |
1315 | Fcons (QMULTIPLE, | |
1316 | x_get_window_property_as_lisp_data (display, window, target, | |
1317 | QMULTIPLE, selection_atom)); | |
1318 | } | |
1319 | ||
1320 | static Lisp_Object | |
1321 | copy_multiple_data (obj) | |
1322 | Lisp_Object obj; | |
1323 | { | |
1324 | Lisp_Object vec; | |
1325 | int i; | |
1326 | int size; | |
1327 | if (CONSP (obj)) | |
8e713be6 | 1328 | return Fcons (XCAR (obj), copy_multiple_data (XCDR (obj))); |
1b65481e | 1329 | |
b7826503 | 1330 | CHECK_VECTOR (obj); |
ede4db72 RS |
1331 | vec = Fmake_vector (size = XVECTOR (obj)->size, Qnil); |
1332 | for (i = 0; i < size; i++) | |
1333 | { | |
1334 | Lisp_Object vec2 = XVECTOR (obj)->contents [i]; | |
b7826503 | 1335 | CHECK_VECTOR (vec2); |
ede4db72 RS |
1336 | if (XVECTOR (vec2)->size != 2) |
1337 | /* ??? Confusing error message */ | |
1338 | Fsignal (Qerror, Fcons (build_string ("vectors must be of length 2"), | |
1339 | Fcons (vec2, Qnil))); | |
1340 | XVECTOR (vec)->contents [i] = Fmake_vector (2, Qnil); | |
1341 | XVECTOR (XVECTOR (vec)->contents [i])->contents [0] | |
1342 | = XVECTOR (vec2)->contents [0]; | |
1343 | XVECTOR (XVECTOR (vec)->contents [i])->contents [1] | |
1344 | = XVECTOR (vec2)->contents [1]; | |
1345 | } | |
1346 | return vec; | |
1347 | } | |
1348 | ||
1349 | #endif | |
1350 | ||
1351 | \f | |
1352 | /* Variables for communication with x_handle_selection_notify. */ | |
1353 | static Atom reading_which_selection; | |
1354 | static Lisp_Object reading_selection_reply; | |
1355 | static Window reading_selection_window; | |
1356 | ||
1357 | /* Do protocol to read selection-data from the server. | |
1358 | Converts this to Lisp data and returns it. */ | |
1359 | ||
1360 | static Lisp_Object | |
3a42401d JD |
1361 | x_get_foreign_selection (selection_symbol, target_type, time_stamp) |
1362 | Lisp_Object selection_symbol, target_type, time_stamp; | |
ede4db72 | 1363 | { |
378c33ca GM |
1364 | struct frame *sf = SELECTED_FRAME (); |
1365 | Window requestor_window = FRAME_X_WINDOW (sf); | |
1366 | Display *display = FRAME_X_DISPLAY (sf); | |
1367 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
5d0ba25b | 1368 | Time requestor_time = last_event_timestamp; |
5c3a351a RS |
1369 | Atom target_property = dpyinfo->Xatom_EMACS_TMP; |
1370 | Atom selection_atom = symbol_to_x_atom (dpyinfo, display, selection_symbol); | |
ede4db72 | 1371 | Atom type_atom; |
80da0190 | 1372 | int secs, usecs; |
5a499696 | 1373 | int count; |
55b2d45d | 1374 | Lisp_Object frame; |
ede4db72 RS |
1375 | |
1376 | if (CONSP (target_type)) | |
8e713be6 | 1377 | type_atom = symbol_to_x_atom (dpyinfo, display, XCAR (target_type)); |
ede4db72 | 1378 | else |
5c3a351a | 1379 | type_atom = symbol_to_x_atom (dpyinfo, display, target_type); |
ede4db72 | 1380 | |
3a42401d JD |
1381 | if (! NILP (time_stamp)) |
1382 | { | |
1383 | if (CONSP (time_stamp)) | |
1384 | requestor_time = (Time) cons_to_long (time_stamp); | |
1385 | else if (INTEGERP (time_stamp)) | |
1386 | requestor_time = (Time) XUINT (time_stamp); | |
1387 | else if (FLOATP (time_stamp)) | |
ff59904a | 1388 | requestor_time = (Time) XFLOAT_DATA (time_stamp); |
3a42401d JD |
1389 | else |
1390 | error ("TIME_STAMP must be cons or number"); | |
1391 | } | |
1392 | ||
ede4db72 | 1393 | BLOCK_INPUT; |
1b65481e | 1394 | |
5a499696 | 1395 | count = x_catch_errors (display); |
1b65481e | 1396 | |
d9c0d4a3 GM |
1397 | TRACE2 ("Get selection %s, type %s", |
1398 | XGetAtomName (display, type_atom), | |
1399 | XGetAtomName (display, target_property)); | |
1400 | ||
ede4db72 | 1401 | XConvertSelection (display, selection_atom, type_atom, target_property, |
5d0ba25b | 1402 | requestor_window, requestor_time); |
5c3a351a | 1403 | XFlush (display); |
ede4db72 RS |
1404 | |
1405 | /* Prepare to block until the reply has been read. */ | |
5d0ba25b | 1406 | reading_selection_window = requestor_window; |
ede4db72 | 1407 | reading_which_selection = selection_atom; |
f3fbd155 | 1408 | XSETCAR (reading_selection_reply, Qnil); |
55b2d45d RS |
1409 | |
1410 | frame = some_frame_on_display (dpyinfo); | |
1411 | ||
1412 | /* If the display no longer has frames, we can't expect | |
1413 | to get many more selection requests from it, so don't | |
1414 | bother trying to queue them. */ | |
1415 | if (!NILP (frame)) | |
1416 | { | |
dd0fe424 | 1417 | x_start_queuing_selection_requests (); |
55b2d45d RS |
1418 | |
1419 | record_unwind_protect (queue_selection_requests_unwind, | |
dd0fe424 | 1420 | Qnil); |
55b2d45d | 1421 | } |
ede4db72 RS |
1422 | UNBLOCK_INPUT; |
1423 | ||
80da0190 RS |
1424 | /* This allows quits. Also, don't wait forever. */ |
1425 | secs = x_selection_timeout / 1000; | |
1426 | usecs = (x_selection_timeout % 1000) * 1000; | |
d9c0d4a3 | 1427 | TRACE1 (" Start waiting %d secs for SelectionNotify", secs); |
d64b707c KS |
1428 | wait_reading_process_output (secs, usecs, 0, 0, |
1429 | reading_selection_reply, NULL, 0); | |
d9c0d4a3 | 1430 | TRACE1 (" Got event = %d", !NILP (XCAR (reading_selection_reply))); |
ede4db72 | 1431 | |
7c6b2ea4 | 1432 | BLOCK_INPUT; |
a7b24d46 | 1433 | x_check_errors (display, "Cannot get selection: %s"); |
5a499696 | 1434 | x_uncatch_errors (display, count); |
7c6b2ea4 RS |
1435 | UNBLOCK_INPUT; |
1436 | ||
8e713be6 | 1437 | if (NILP (XCAR (reading_selection_reply))) |
606140dd | 1438 | error ("Timed out waiting for reply from selection owner"); |
8e713be6 | 1439 | if (EQ (XCAR (reading_selection_reply), Qlambda)) |
d5db4077 | 1440 | error ("No `%s' selection", SDATA (SYMBOL_NAME (selection_symbol))); |
ede4db72 RS |
1441 | |
1442 | /* Otherwise, the selection is waiting for us on the requested property. */ | |
1443 | return | |
5d0ba25b | 1444 | x_get_window_property_as_lisp_data (display, requestor_window, |
ede4db72 RS |
1445 | target_property, target_type, |
1446 | selection_atom); | |
1447 | } | |
1448 | \f | |
1449 | /* Subroutines of x_get_window_property_as_lisp_data */ | |
1450 | ||
4feb31b2 | 1451 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1452 | |
ede4db72 RS |
1453 | static void |
1454 | x_get_window_property (display, window, property, data_ret, bytes_ret, | |
1455 | actual_type_ret, actual_format_ret, actual_size_ret, | |
1456 | delete_p) | |
1457 | Display *display; | |
1458 | Window window; | |
1459 | Atom property; | |
1460 | unsigned char **data_ret; | |
1461 | int *bytes_ret; | |
1462 | Atom *actual_type_ret; | |
1463 | int *actual_format_ret; | |
1464 | unsigned long *actual_size_ret; | |
1465 | int delete_p; | |
1466 | { | |
1467 | int total_size; | |
1468 | unsigned long bytes_remaining; | |
1469 | int offset = 0; | |
1470 | unsigned char *tmp_data = 0; | |
1471 | int result; | |
1472 | int buffer_size = SELECTION_QUANTUM (display); | |
1b65481e | 1473 | |
d9c0d4a3 GM |
1474 | if (buffer_size > MAX_SELECTION_QUANTUM) |
1475 | buffer_size = MAX_SELECTION_QUANTUM; | |
1b65481e | 1476 | |
ede4db72 | 1477 | BLOCK_INPUT; |
1b65481e | 1478 | |
ede4db72 RS |
1479 | /* First probe the thing to find out how big it is. */ |
1480 | result = XGetWindowProperty (display, window, property, | |
137edb72 | 1481 | 0L, 0L, False, AnyPropertyType, |
ede4db72 RS |
1482 | actual_type_ret, actual_format_ret, |
1483 | actual_size_ret, | |
1484 | &bytes_remaining, &tmp_data); | |
ede4db72 RS |
1485 | if (result != Success) |
1486 | { | |
2f65feb6 | 1487 | UNBLOCK_INPUT; |
ede4db72 RS |
1488 | *data_ret = 0; |
1489 | *bytes_ret = 0; | |
1490 | return; | |
1491 | } | |
1b65481e | 1492 | |
0158abbc RS |
1493 | /* This was allocated by Xlib, so use XFree. */ |
1494 | XFree ((char *) tmp_data); | |
1b65481e | 1495 | |
ede4db72 RS |
1496 | if (*actual_type_ret == None || *actual_format_ret == 0) |
1497 | { | |
2f65feb6 | 1498 | UNBLOCK_INPUT; |
ede4db72 RS |
1499 | return; |
1500 | } | |
1501 | ||
1502 | total_size = bytes_remaining + 1; | |
1503 | *data_ret = (unsigned char *) xmalloc (total_size); | |
1b65481e | 1504 | |
2a1a4c9d | 1505 | /* Now read, until we've gotten it all. */ |
ede4db72 RS |
1506 | while (bytes_remaining) |
1507 | { | |
d9c0d4a3 | 1508 | #ifdef TRACE_SELECTION |
ede4db72 RS |
1509 | int last = bytes_remaining; |
1510 | #endif | |
1511 | result | |
1512 | = XGetWindowProperty (display, window, property, | |
137edb72 | 1513 | (long)offset/4, (long)buffer_size/4, |
2f65feb6 | 1514 | False, |
ede4db72 RS |
1515 | AnyPropertyType, |
1516 | actual_type_ret, actual_format_ret, | |
1517 | actual_size_ret, &bytes_remaining, &tmp_data); | |
d9c0d4a3 GM |
1518 | |
1519 | TRACE2 ("Read %ld bytes from property %s", | |
1520 | last - bytes_remaining, | |
1521 | XGetAtomName (display, property)); | |
1522 | ||
ede4db72 RS |
1523 | /* If this doesn't return Success at this point, it means that |
1524 | some clod deleted the selection while we were in the midst of | |
d9c0d4a3 GM |
1525 | reading it. Deal with that, I guess.... */ |
1526 | if (result != Success) | |
1527 | break; | |
e22cf39c JD |
1528 | |
1529 | /* The man page for XGetWindowProperty says: | |
1530 | "If the returned format is 32, the returned data is represented | |
1531 | as a long array and should be cast to that type to obtain the | |
1532 | elements." | |
1533 | This applies even if long is more than 32 bits, the X library | |
1534 | converts from 32 bit elements received from the X server to long | |
1535 | and passes the long array to us. Thus, for that case bcopy can not | |
1536 | be used. We convert to a 32 bit type here, because so much code | |
1537 | assume on that. | |
1538 | ||
1539 | The bytes and offsets passed to XGetWindowProperty refers to the | |
1540 | property and those are indeed in 32 bit quantities if format is 32. */ | |
1541 | ||
1542 | if (*actual_format_ret == 32 && *actual_format_ret < BITS_PER_LONG) | |
1543 | { | |
1544 | unsigned long i; | |
1545 | int *idata = (int *) ((*data_ret) + offset); | |
1546 | long *ldata = (long *) tmp_data; | |
1547 | ||
1548 | for (i = 0; i < *actual_size_ret; ++i) | |
1549 | { | |
1550 | idata[i]= (int) ldata[i]; | |
1551 | offset += 4; | |
1552 | } | |
1553 | } | |
1554 | else | |
1555 | { | |
1556 | *actual_size_ret *= *actual_format_ret / 8; | |
1557 | bcopy (tmp_data, (*data_ret) + offset, *actual_size_ret); | |
1558 | offset += *actual_size_ret; | |
1559 | } | |
1b65481e | 1560 | |
0158abbc RS |
1561 | /* This was allocated by Xlib, so use XFree. */ |
1562 | XFree ((char *) tmp_data); | |
ede4db72 | 1563 | } |
2f65feb6 | 1564 | |
5c3a351a | 1565 | XFlush (display); |
ede4db72 RS |
1566 | UNBLOCK_INPUT; |
1567 | *bytes_ret = offset; | |
1568 | } | |
1569 | \f | |
4feb31b2 | 1570 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1571 | |
ede4db72 RS |
1572 | static void |
1573 | receive_incremental_selection (display, window, property, target_type, | |
1574 | min_size_bytes, data_ret, size_bytes_ret, | |
1575 | type_ret, format_ret, size_ret) | |
1576 | Display *display; | |
1577 | Window window; | |
1578 | Atom property; | |
1579 | Lisp_Object target_type; /* for error messages only */ | |
1580 | unsigned int min_size_bytes; | |
1581 | unsigned char **data_ret; | |
1582 | int *size_bytes_ret; | |
1583 | Atom *type_ret; | |
1584 | unsigned long *size_ret; | |
1585 | int *format_ret; | |
1586 | { | |
1587 | int offset = 0; | |
d1f21a66 | 1588 | struct prop_location *wait_object; |
ede4db72 RS |
1589 | *size_bytes_ret = min_size_bytes; |
1590 | *data_ret = (unsigned char *) xmalloc (*size_bytes_ret); | |
d9c0d4a3 GM |
1591 | |
1592 | TRACE1 ("Read %d bytes incrementally", min_size_bytes); | |
2f65feb6 RS |
1593 | |
1594 | /* At this point, we have read an INCR property. | |
1595 | Delete the property to ack it. | |
1596 | (But first, prepare to receive the next event in this handshake.) | |
ede4db72 RS |
1597 | |
1598 | Now, we must loop, waiting for the sending window to put a value on | |
1599 | that property, then reading the property, then deleting it to ack. | |
1600 | We are done when the sender places a property of length 0. | |
1601 | */ | |
2f65feb6 RS |
1602 | BLOCK_INPUT; |
1603 | XSelectInput (display, window, STANDARD_EVENT_SET | PropertyChangeMask); | |
d9c0d4a3 | 1604 | TRACE1 (" Delete property %s", |
dd0fe424 | 1605 | SDATA (SYMBOL_NAME (x_atom_to_symbol (display, property)))); |
2f65feb6 | 1606 | XDeleteProperty (display, window, property); |
d9c0d4a3 | 1607 | TRACE1 (" Expect new value of property %s", |
dd0fe424 | 1608 | SDATA (SYMBOL_NAME (x_atom_to_symbol (display, property)))); |
d1f21a66 RS |
1609 | wait_object = expect_property_change (display, window, property, |
1610 | PropertyNewValue); | |
5c3a351a | 1611 | XFlush (display); |
2f65feb6 RS |
1612 | UNBLOCK_INPUT; |
1613 | ||
ede4db72 RS |
1614 | while (1) |
1615 | { | |
1616 | unsigned char *tmp_data; | |
1617 | int tmp_size_bytes; | |
d9c0d4a3 GM |
1618 | |
1619 | TRACE0 (" Wait for property change"); | |
d1f21a66 | 1620 | wait_for_property_change (wait_object); |
1b65481e | 1621 | |
ede4db72 | 1622 | /* expect it again immediately, because x_get_window_property may |
2a1a4c9d | 1623 | .. no it won't, I don't get it. |
d9c0d4a3 GM |
1624 | .. Ok, I get it now, the Xt code that implements INCR is broken. */ |
1625 | TRACE0 (" Get property value"); | |
ede4db72 RS |
1626 | x_get_window_property (display, window, property, |
1627 | &tmp_data, &tmp_size_bytes, | |
1628 | type_ret, format_ret, size_ret, 1); | |
1629 | ||
d9c0d4a3 GM |
1630 | TRACE1 (" Read increment of %d bytes", tmp_size_bytes); |
1631 | ||
ede4db72 RS |
1632 | if (tmp_size_bytes == 0) /* we're done */ |
1633 | { | |
d9c0d4a3 GM |
1634 | TRACE0 ("Done reading incrementally"); |
1635 | ||
2f65feb6 RS |
1636 | if (! waiting_for_other_props_on_window (display, window)) |
1637 | XSelectInput (display, window, STANDARD_EVENT_SET); | |
4feb31b2 | 1638 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1639 | calls xmalloc itself. */ |
4feb31b2 | 1640 | if (tmp_data) xfree (tmp_data); |
ede4db72 RS |
1641 | break; |
1642 | } | |
2f65feb6 RS |
1643 | |
1644 | BLOCK_INPUT; | |
d9c0d4a3 GM |
1645 | TRACE1 (" ACK by deleting property %s", |
1646 | XGetAtomName (display, property)); | |
2f65feb6 | 1647 | XDeleteProperty (display, window, property); |
d1f21a66 RS |
1648 | wait_object = expect_property_change (display, window, property, |
1649 | PropertyNewValue); | |
5c3a351a | 1650 | XFlush (display); |
2f65feb6 RS |
1651 | UNBLOCK_INPUT; |
1652 | ||
ede4db72 RS |
1653 | if (*size_bytes_ret < offset + tmp_size_bytes) |
1654 | { | |
ede4db72 RS |
1655 | *size_bytes_ret = offset + tmp_size_bytes; |
1656 | *data_ret = (unsigned char *) xrealloc (*data_ret, *size_bytes_ret); | |
1657 | } | |
1b65481e | 1658 | |
018cfa07 | 1659 | bcopy (tmp_data, (*data_ret) + offset, tmp_size_bytes); |
ede4db72 | 1660 | offset += tmp_size_bytes; |
1b65481e | 1661 | |
4feb31b2 | 1662 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1663 | calls xmalloc itself. */ |
4feb31b2 | 1664 | xfree (tmp_data); |
ede4db72 RS |
1665 | } |
1666 | } | |
d9c0d4a3 | 1667 | |
ede4db72 RS |
1668 | \f |
1669 | /* Once a requested selection is "ready" (we got a SelectionNotify event), | |
1670 | fetch value from property PROPERTY of X window WINDOW on display DISPLAY. | |
1671 | TARGET_TYPE and SELECTION_ATOM are used in error message if this fails. */ | |
1672 | ||
1673 | static Lisp_Object | |
1674 | x_get_window_property_as_lisp_data (display, window, property, target_type, | |
1675 | selection_atom) | |
1676 | Display *display; | |
1677 | Window window; | |
1678 | Atom property; | |
1679 | Lisp_Object target_type; /* for error messages only */ | |
1680 | Atom selection_atom; /* for error messages only */ | |
1681 | { | |
1682 | Atom actual_type; | |
1683 | int actual_format; | |
1684 | unsigned long actual_size; | |
1685 | unsigned char *data = 0; | |
1686 | int bytes = 0; | |
1687 | Lisp_Object val; | |
5c3a351a | 1688 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 | 1689 | |
d9c0d4a3 GM |
1690 | TRACE0 ("Reading selection data"); |
1691 | ||
ede4db72 RS |
1692 | x_get_window_property (display, window, property, &data, &bytes, |
1693 | &actual_type, &actual_format, &actual_size, 1); | |
1694 | if (! data) | |
1695 | { | |
1696 | int there_is_a_selection_owner; | |
1697 | BLOCK_INPUT; | |
1698 | there_is_a_selection_owner | |
1699 | = XGetSelectionOwner (display, selection_atom); | |
1700 | UNBLOCK_INPUT; | |
5a499696 RS |
1701 | Fsignal (Qerror, |
1702 | there_is_a_selection_owner | |
1703 | ? Fcons (build_string ("selection owner couldn't convert"), | |
ede4db72 RS |
1704 | actual_type |
1705 | ? Fcons (target_type, | |
d9c0d4a3 | 1706 | Fcons (x_atom_to_symbol (display, |
5c3a351a | 1707 | actual_type), |
ede4db72 RS |
1708 | Qnil)) |
1709 | : Fcons (target_type, Qnil)) | |
5a499696 | 1710 | : Fcons (build_string ("no selection"), |
d9c0d4a3 | 1711 | Fcons (x_atom_to_symbol (display, |
5a499696 RS |
1712 | selection_atom), |
1713 | Qnil))); | |
ede4db72 | 1714 | } |
1b65481e | 1715 | |
5c3a351a | 1716 | if (actual_type == dpyinfo->Xatom_INCR) |
ede4db72 RS |
1717 | { |
1718 | /* That wasn't really the data, just the beginning. */ | |
1719 | ||
1720 | unsigned int min_size_bytes = * ((unsigned int *) data); | |
1721 | BLOCK_INPUT; | |
4feb31b2 | 1722 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1723 | calls xmalloc itself. */ |
4feb31b2 | 1724 | xfree ((char *) data); |
ede4db72 RS |
1725 | UNBLOCK_INPUT; |
1726 | receive_incremental_selection (display, window, property, target_type, | |
1727 | min_size_bytes, &data, &bytes, | |
1728 | &actual_type, &actual_format, | |
1729 | &actual_size); | |
1730 | } | |
1731 | ||
2f65feb6 | 1732 | BLOCK_INPUT; |
d9c0d4a3 | 1733 | TRACE1 (" Delete property %s", XGetAtomName (display, property)); |
2f65feb6 | 1734 | XDeleteProperty (display, window, property); |
5c3a351a | 1735 | XFlush (display); |
2f65feb6 RS |
1736 | UNBLOCK_INPUT; |
1737 | ||
ede4db72 RS |
1738 | /* It's been read. Now convert it to a lisp object in some semi-rational |
1739 | manner. */ | |
1740 | val = selection_data_to_lisp_data (display, data, bytes, | |
1741 | actual_type, actual_format); | |
1b65481e | 1742 | |
4feb31b2 | 1743 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1744 | calls xmalloc itself. */ |
4feb31b2 | 1745 | xfree ((char *) data); |
ede4db72 RS |
1746 | return val; |
1747 | } | |
1748 | \f | |
1749 | /* These functions convert from the selection data read from the server into | |
1750 | something that we can use from Lisp, and vice versa. | |
1751 | ||
1752 | Type: Format: Size: Lisp Type: | |
1753 | ----- ------- ----- ----------- | |
1754 | * 8 * String | |
1755 | ATOM 32 1 Symbol | |
1756 | ATOM 32 > 1 Vector of Symbols | |
1757 | * 16 1 Integer | |
1758 | * 16 > 1 Vector of Integers | |
1759 | * 32 1 if <=16 bits: Integer | |
1760 | if > 16 bits: Cons of top16, bot16 | |
1761 | * 32 > 1 Vector of the above | |
1762 | ||
1763 | When converting a Lisp number to C, it is assumed to be of format 16 if | |
1764 | it is an integer, and of format 32 if it is a cons of two integers. | |
1765 | ||
1766 | When converting a vector of numbers from Lisp to C, it is assumed to be | |
1767 | of format 16 if every element in the vector is an integer, and is assumed | |
1768 | to be of format 32 if any element is a cons of two integers. | |
1769 | ||
1770 | When converting an object to C, it may be of the form (SYMBOL . <data>) | |
1771 | where SYMBOL is what we should claim that the type is. Format and | |
b8d6f4af JD |
1772 | representation are as above. |
1773 | ||
1774 | Important: When format is 32, data should contain an array of int, | |
1775 | not an array of long as the X library returns. This makes a difference | |
1776 | when sizeof(long) != sizeof(int). */ | |
ede4db72 RS |
1777 | |
1778 | ||
1779 | ||
1780 | static Lisp_Object | |
1781 | selection_data_to_lisp_data (display, data, size, type, format) | |
1782 | Display *display; | |
1783 | unsigned char *data; | |
1784 | Atom type; | |
1785 | int size, format; | |
1786 | { | |
5c3a351a | 1787 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 | 1788 | |
5c3a351a | 1789 | if (type == dpyinfo->Xatom_NULL) |
ede4db72 RS |
1790 | return QNULL; |
1791 | ||
1792 | /* Convert any 8-bit data to a string, for compactness. */ | |
1793 | else if (format == 8) | |
e6c7c988 | 1794 | { |
e57ad4d8 KH |
1795 | Lisp_Object str, lispy_type; |
1796 | ||
1797 | str = make_unibyte_string ((char *) data, size); | |
1798 | /* Indicate that this string is from foreign selection by a text | |
1799 | property `foreign-selection' so that the caller of | |
1800 | x-get-selection-internal (usually x-get-selection) can know | |
1801 | that the string must be decode. */ | |
1802 | if (type == dpyinfo->Xatom_COMPOUND_TEXT) | |
1803 | lispy_type = QCOMPOUND_TEXT; | |
1804 | else if (type == dpyinfo->Xatom_UTF8_STRING) | |
1805 | lispy_type = QUTF8_STRING; | |
e6c7c988 | 1806 | else |
e57ad4d8 KH |
1807 | lispy_type = QSTRING; |
1808 | Fput_text_property (make_number (0), make_number (size), | |
1809 | Qforeign_selection, lispy_type, str); | |
e6c7c988 KH |
1810 | return str; |
1811 | } | |
ede4db72 RS |
1812 | /* Convert a single atom to a Lisp_Symbol. Convert a set of atoms to |
1813 | a vector of symbols. | |
1814 | */ | |
1815 | else if (type == XA_ATOM) | |
1816 | { | |
1817 | int i; | |
b8d6f4af JD |
1818 | /* On a 64 bit machine sizeof(Atom) == sizeof(long) == 8. |
1819 | But the callers of these function has made sure the data for | |
1820 | format == 32 is an array of int. Thus, use int instead | |
1821 | of Atom. */ | |
1822 | int *idata = (int *) data; | |
1823 | ||
1824 | if (size == sizeof (int)) | |
1825 | return x_atom_to_symbol (display, (Atom) idata[0]); | |
ede4db72 RS |
1826 | else |
1827 | { | |
b8d6f4af | 1828 | Lisp_Object v = Fmake_vector (make_number (size / sizeof (int)), |
e607a484 | 1829 | make_number (0)); |
b8d6f4af | 1830 | for (i = 0; i < size / sizeof (int); i++) |
e607a484 | 1831 | Faset (v, make_number (i), |
b8d6f4af | 1832 | x_atom_to_symbol (display, (Atom) idata[i])); |
ede4db72 RS |
1833 | return v; |
1834 | } | |
1835 | } | |
1836 | ||
1837 | /* Convert a single 16 or small 32 bit number to a Lisp_Int. | |
1838 | If the number is > 16 bits, convert it to a cons of integers, | |
1839 | 16 bits in each half. | |
1840 | */ | |
2f51feb8 AS |
1841 | else if (format == 32 && size == sizeof (int)) |
1842 | return long_to_cons (((unsigned int *) data) [0]); | |
ede4db72 RS |
1843 | else if (format == 16 && size == sizeof (short)) |
1844 | return make_number ((int) (((unsigned short *) data) [0])); | |
1845 | ||
1846 | /* Convert any other kind of data to a vector of numbers, represented | |
1847 | as above (as an integer, or a cons of two 16 bit integers.) | |
1848 | */ | |
1849 | else if (format == 16) | |
1850 | { | |
1851 | int i; | |
937a3875 RS |
1852 | Lisp_Object v; |
1853 | v = Fmake_vector (make_number (size / 2), make_number (0)); | |
1854 | for (i = 0; i < size / 2; i++) | |
ede4db72 RS |
1855 | { |
1856 | int j = (int) ((unsigned short *) data) [i]; | |
e607a484 | 1857 | Faset (v, make_number (i), make_number (j)); |
ede4db72 RS |
1858 | } |
1859 | return v; | |
1860 | } | |
1861 | else | |
1862 | { | |
1863 | int i; | |
e607a484 | 1864 | Lisp_Object v = Fmake_vector (make_number (size / 4), make_number (0)); |
ede4db72 RS |
1865 | for (i = 0; i < size / 4; i++) |
1866 | { | |
2f51feb8 | 1867 | unsigned int j = ((unsigned int *) data) [i]; |
e607a484 | 1868 | Faset (v, make_number (i), long_to_cons (j)); |
ede4db72 RS |
1869 | } |
1870 | return v; | |
1871 | } | |
1872 | } | |
1873 | ||
1874 | ||
4feb31b2 | 1875 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1876 | |
ede4db72 RS |
1877 | static void |
1878 | lisp_data_to_selection_data (display, obj, | |
aca39f42 RS |
1879 | data_ret, type_ret, size_ret, |
1880 | format_ret, nofree_ret) | |
ede4db72 RS |
1881 | Display *display; |
1882 | Lisp_Object obj; | |
1883 | unsigned char **data_ret; | |
1884 | Atom *type_ret; | |
1885 | unsigned int *size_ret; | |
1886 | int *format_ret; | |
aca39f42 | 1887 | int *nofree_ret; |
ede4db72 RS |
1888 | { |
1889 | Lisp_Object type = Qnil; | |
5c3a351a | 1890 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
aca39f42 RS |
1891 | |
1892 | *nofree_ret = 0; | |
1893 | ||
8e713be6 | 1894 | if (CONSP (obj) && SYMBOLP (XCAR (obj))) |
ede4db72 | 1895 | { |
8e713be6 KR |
1896 | type = XCAR (obj); |
1897 | obj = XCDR (obj); | |
1898 | if (CONSP (obj) && NILP (XCDR (obj))) | |
1899 | obj = XCAR (obj); | |
ede4db72 RS |
1900 | } |
1901 | ||
1902 | if (EQ (obj, QNULL) || (EQ (type, QNULL))) | |
1903 | { /* This is not the same as declining */ | |
1904 | *format_ret = 32; | |
1905 | *size_ret = 0; | |
1906 | *data_ret = 0; | |
1907 | type = QNULL; | |
1908 | } | |
1909 | else if (STRINGP (obj)) | |
1910 | { | |
1bd70c6e KH |
1911 | if (SCHARS (obj) < SBYTES (obj)) |
1912 | /* OBJ is a multibyte string containing a non-ASCII char. */ | |
1913 | Fsignal (Qerror, /* Qselection_error */ | |
1914 | Fcons (build_string | |
1915 | ("Non-ASCII string must be encoded in advance"), | |
1916 | Fcons (obj, Qnil))); | |
7b9ae523 | 1917 | if (NILP (type)) |
5109c8dd KH |
1918 | type = QSTRING; |
1919 | *format_ret = 8; | |
1920 | *size_ret = SBYTES (obj); | |
1921 | *data_ret = SDATA (obj); | |
1922 | *nofree_ret = 1; | |
ede4db72 RS |
1923 | } |
1924 | else if (SYMBOLP (obj)) | |
1925 | { | |
1926 | *format_ret = 32; | |
1927 | *size_ret = 1; | |
1928 | *data_ret = (unsigned char *) xmalloc (sizeof (Atom) + 1); | |
1929 | (*data_ret) [sizeof (Atom)] = 0; | |
5c3a351a | 1930 | (*(Atom **) data_ret) [0] = symbol_to_x_atom (dpyinfo, display, obj); |
ede4db72 RS |
1931 | if (NILP (type)) type = QATOM; |
1932 | } | |
7da64e5c | 1933 | else if (INTEGERP (obj) |
ede4db72 RS |
1934 | && XINT (obj) < 0xFFFF |
1935 | && XINT (obj) > -0xFFFF) | |
1936 | { | |
1937 | *format_ret = 16; | |
1938 | *size_ret = 1; | |
1939 | *data_ret = (unsigned char *) xmalloc (sizeof (short) + 1); | |
1940 | (*data_ret) [sizeof (short)] = 0; | |
1941 | (*(short **) data_ret) [0] = (short) XINT (obj); | |
1942 | if (NILP (type)) type = QINTEGER; | |
1943 | } | |
a87ed99c | 1944 | else if (INTEGERP (obj) |
8e713be6 KR |
1945 | || (CONSP (obj) && INTEGERP (XCAR (obj)) |
1946 | && (INTEGERP (XCDR (obj)) | |
1947 | || (CONSP (XCDR (obj)) | |
1948 | && INTEGERP (XCAR (XCDR (obj))))))) | |
ede4db72 RS |
1949 | { |
1950 | *format_ret = 32; | |
1951 | *size_ret = 1; | |
1952 | *data_ret = (unsigned char *) xmalloc (sizeof (long) + 1); | |
1953 | (*data_ret) [sizeof (long)] = 0; | |
1954 | (*(unsigned long **) data_ret) [0] = cons_to_long (obj); | |
1955 | if (NILP (type)) type = QINTEGER; | |
1956 | } | |
1957 | else if (VECTORP (obj)) | |
1958 | { | |
1959 | /* Lisp_Vectors may represent a set of ATOMs; | |
1960 | a set of 16 or 32 bit INTEGERs; | |
1961 | or a set of ATOM_PAIRs (represented as [[A1 A2] [A3 A4] ...] | |
1962 | */ | |
1963 | int i; | |
1964 | ||
1965 | if (SYMBOLP (XVECTOR (obj)->contents [0])) | |
1966 | /* This vector is an ATOM set */ | |
1967 | { | |
1968 | if (NILP (type)) type = QATOM; | |
1969 | *size_ret = XVECTOR (obj)->size; | |
1970 | *format_ret = 32; | |
1971 | *data_ret = (unsigned char *) xmalloc ((*size_ret) * sizeof (Atom)); | |
1972 | for (i = 0; i < *size_ret; i++) | |
1973 | if (SYMBOLP (XVECTOR (obj)->contents [i])) | |
1974 | (*(Atom **) data_ret) [i] | |
5c3a351a | 1975 | = symbol_to_x_atom (dpyinfo, display, XVECTOR (obj)->contents [i]); |
ede4db72 RS |
1976 | else |
1977 | Fsignal (Qerror, /* Qselection_error */ | |
1978 | Fcons (build_string | |
1979 | ("all elements of selection vector must have same type"), | |
1980 | Fcons (obj, Qnil))); | |
1981 | } | |
1982 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1983 | else if (VECTORP (XVECTOR (obj)->contents [0])) | |
1984 | /* This vector is an ATOM_PAIR set */ | |
1985 | { | |
1986 | if (NILP (type)) type = QATOM_PAIR; | |
1987 | *size_ret = XVECTOR (obj)->size; | |
1988 | *format_ret = 32; | |
1989 | *data_ret = (unsigned char *) | |
1990 | xmalloc ((*size_ret) * sizeof (Atom) * 2); | |
1991 | for (i = 0; i < *size_ret; i++) | |
1992 | if (VECTORP (XVECTOR (obj)->contents [i])) | |
1993 | { | |
1994 | Lisp_Object pair = XVECTOR (obj)->contents [i]; | |
1995 | if (XVECTOR (pair)->size != 2) | |
1996 | Fsignal (Qerror, | |
1b65481e | 1997 | Fcons (build_string |
ede4db72 RS |
1998 | ("elements of the vector must be vectors of exactly two elements"), |
1999 | Fcons (pair, Qnil))); | |
1b65481e | 2000 | |
ede4db72 | 2001 | (*(Atom **) data_ret) [i * 2] |
5c3a351a RS |
2002 | = symbol_to_x_atom (dpyinfo, display, |
2003 | XVECTOR (pair)->contents [0]); | |
ede4db72 | 2004 | (*(Atom **) data_ret) [(i * 2) + 1] |
5c3a351a RS |
2005 | = symbol_to_x_atom (dpyinfo, display, |
2006 | XVECTOR (pair)->contents [1]); | |
ede4db72 RS |
2007 | } |
2008 | else | |
2009 | Fsignal (Qerror, | |
2010 | Fcons (build_string | |
2011 | ("all elements of the vector must be of the same type"), | |
2012 | Fcons (obj, Qnil))); | |
1b65481e | 2013 | |
ede4db72 RS |
2014 | } |
2015 | #endif | |
2016 | else | |
2017 | /* This vector is an INTEGER set, or something like it */ | |
2018 | { | |
e22cf39c | 2019 | int data_size = 2; |
ede4db72 RS |
2020 | *size_ret = XVECTOR (obj)->size; |
2021 | if (NILP (type)) type = QINTEGER; | |
2022 | *format_ret = 16; | |
2023 | for (i = 0; i < *size_ret; i++) | |
2024 | if (CONSP (XVECTOR (obj)->contents [i])) | |
2025 | *format_ret = 32; | |
7da64e5c | 2026 | else if (!INTEGERP (XVECTOR (obj)->contents [i])) |
ede4db72 RS |
2027 | Fsignal (Qerror, /* Qselection_error */ |
2028 | Fcons (build_string | |
2029 | ("elements of selection vector must be integers or conses of integers"), | |
2030 | Fcons (obj, Qnil))); | |
2031 | ||
e22cf39c JD |
2032 | /* Use sizeof(long) even if it is more than 32 bits. See comment |
2033 | in x_get_window_property and x_fill_property_data. */ | |
6e816df5 | 2034 | |
e22cf39c JD |
2035 | if (*format_ret == 32) data_size = sizeof(long); |
2036 | *data_ret = (unsigned char *) xmalloc (*size_ret * data_size); | |
ede4db72 RS |
2037 | for (i = 0; i < *size_ret; i++) |
2038 | if (*format_ret == 32) | |
2039 | (*((unsigned long **) data_ret)) [i] | |
2040 | = cons_to_long (XVECTOR (obj)->contents [i]); | |
2041 | else | |
2042 | (*((unsigned short **) data_ret)) [i] | |
2043 | = (unsigned short) cons_to_long (XVECTOR (obj)->contents [i]); | |
2044 | } | |
2045 | } | |
2046 | else | |
2047 | Fsignal (Qerror, /* Qselection_error */ | |
6e816df5 | 2048 | Fcons (build_string ("unrecognized selection data"), |
ede4db72 RS |
2049 | Fcons (obj, Qnil))); |
2050 | ||
5c3a351a | 2051 | *type_ret = symbol_to_x_atom (dpyinfo, display, type); |
ede4db72 RS |
2052 | } |
2053 | ||
2054 | static Lisp_Object | |
2055 | clean_local_selection_data (obj) | |
2056 | Lisp_Object obj; | |
2057 | { | |
2058 | if (CONSP (obj) | |
8e713be6 KR |
2059 | && INTEGERP (XCAR (obj)) |
2060 | && CONSP (XCDR (obj)) | |
2061 | && INTEGERP (XCAR (XCDR (obj))) | |
2062 | && NILP (XCDR (XCDR (obj)))) | |
2063 | obj = Fcons (XCAR (obj), XCDR (obj)); | |
ede4db72 RS |
2064 | |
2065 | if (CONSP (obj) | |
8e713be6 KR |
2066 | && INTEGERP (XCAR (obj)) |
2067 | && INTEGERP (XCDR (obj))) | |
ede4db72 | 2068 | { |
8e713be6 KR |
2069 | if (XINT (XCAR (obj)) == 0) |
2070 | return XCDR (obj); | |
2071 | if (XINT (XCAR (obj)) == -1) | |
2072 | return make_number (- XINT (XCDR (obj))); | |
ede4db72 RS |
2073 | } |
2074 | if (VECTORP (obj)) | |
2075 | { | |
2076 | int i; | |
2077 | int size = XVECTOR (obj)->size; | |
2078 | Lisp_Object copy; | |
2079 | if (size == 1) | |
2080 | return clean_local_selection_data (XVECTOR (obj)->contents [0]); | |
e607a484 | 2081 | copy = Fmake_vector (make_number (size), Qnil); |
ede4db72 RS |
2082 | for (i = 0; i < size; i++) |
2083 | XVECTOR (copy)->contents [i] | |
2084 | = clean_local_selection_data (XVECTOR (obj)->contents [i]); | |
2085 | return copy; | |
2086 | } | |
2087 | return obj; | |
2088 | } | |
2089 | \f | |
2090 | /* Called from XTread_socket to handle SelectionNotify events. | |
606140dd KH |
2091 | If it's the selection we are waiting for, stop waiting |
2092 | by setting the car of reading_selection_reply to non-nil. | |
2093 | We store t there if the reply is successful, lambda if not. */ | |
ede4db72 RS |
2094 | |
2095 | void | |
2096 | x_handle_selection_notify (event) | |
2097 | XSelectionEvent *event; | |
2098 | { | |
5d0ba25b | 2099 | if (event->requestor != reading_selection_window) |
ede4db72 RS |
2100 | return; |
2101 | if (event->selection != reading_which_selection) | |
2102 | return; | |
2103 | ||
d9c0d4a3 | 2104 | TRACE0 ("Received SelectionNotify"); |
f3fbd155 KR |
2105 | XSETCAR (reading_selection_reply, |
2106 | (event->property != 0 ? Qt : Qlambda)); | |
ede4db72 RS |
2107 | } |
2108 | ||
2109 | \f | |
a0d76c27 | 2110 | DEFUN ("x-own-selection-internal", Fx_own_selection_internal, |
8c1a1077 PJ |
2111 | Sx_own_selection_internal, 2, 2, 0, |
2112 | doc: /* Assert an X selection of the given TYPE with the given VALUE. | |
2113 | TYPE is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2114 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2115 | VALUE is typically a string, or a cons of two markers, but may be | |
2116 | anything that the functions on `selection-converter-alist' know about. */) | |
2117 | (selection_name, selection_value) | |
ede4db72 RS |
2118 | Lisp_Object selection_name, selection_value; |
2119 | { | |
703e0710 | 2120 | check_x (); |
b7826503 | 2121 | CHECK_SYMBOL (selection_name); |
253b2298 | 2122 | if (NILP (selection_value)) error ("SELECTION-VALUE may not be nil"); |
ede4db72 RS |
2123 | x_own_selection (selection_name, selection_value); |
2124 | return selection_value; | |
2125 | } | |
2126 | ||
2127 | ||
2128 | /* Request the selection value from the owner. If we are the owner, | |
2129 | simply return our selection value. If we are not the owner, this | |
2130 | will block until all of the data has arrived. */ | |
2131 | ||
a0d76c27 | 2132 | DEFUN ("x-get-selection-internal", Fx_get_selection_internal, |
3a42401d | 2133 | Sx_get_selection_internal, 2, 3, 0, |
8c1a1077 PJ |
2134 | doc: /* Return text selected from some X window. |
2135 | SELECTION is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2136 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
3a42401d JD |
2137 | TYPE is the type of data desired, typically `STRING'. |
2138 | TIME_STAMP is the time to use in the XConvertSelection call for foreign | |
2139 | selections. If omitted, defaults to the time for the last event. */) | |
2140 | (selection_symbol, target_type, time_stamp) | |
2141 | Lisp_Object selection_symbol, target_type, time_stamp; | |
ede4db72 RS |
2142 | { |
2143 | Lisp_Object val = Qnil; | |
2144 | struct gcpro gcpro1, gcpro2; | |
2145 | GCPRO2 (target_type, val); /* we store newly consed data into these */ | |
703e0710 | 2146 | check_x (); |
b7826503 | 2147 | CHECK_SYMBOL (selection_symbol); |
ede4db72 RS |
2148 | |
2149 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
2150 | if (CONSP (target_type) | |
8e713be6 | 2151 | && XCAR (target_type) == QMULTIPLE) |
ede4db72 | 2152 | { |
b7826503 | 2153 | CHECK_VECTOR (XCDR (target_type)); |
ede4db72 RS |
2154 | /* So we don't destructively modify this... */ |
2155 | target_type = copy_multiple_data (target_type); | |
2156 | } | |
2157 | else | |
2158 | #endif | |
b7826503 | 2159 | CHECK_SYMBOL (target_type); |
ede4db72 | 2160 | |
5109c8dd | 2161 | val = x_get_local_selection (selection_symbol, target_type, 1); |
ede4db72 RS |
2162 | |
2163 | if (NILP (val)) | |
2164 | { | |
3a42401d | 2165 | val = x_get_foreign_selection (selection_symbol, target_type, time_stamp); |
ede4db72 RS |
2166 | goto DONE; |
2167 | } | |
2168 | ||
2169 | if (CONSP (val) | |
8e713be6 | 2170 | && SYMBOLP (XCAR (val))) |
ede4db72 | 2171 | { |
8e713be6 KR |
2172 | val = XCDR (val); |
2173 | if (CONSP (val) && NILP (XCDR (val))) | |
2174 | val = XCAR (val); | |
ede4db72 RS |
2175 | } |
2176 | val = clean_local_selection_data (val); | |
2177 | DONE: | |
2178 | UNGCPRO; | |
2179 | return val; | |
2180 | } | |
2181 | ||
a0d76c27 | 2182 | DEFUN ("x-disown-selection-internal", Fx_disown_selection_internal, |
8c1a1077 PJ |
2183 | Sx_disown_selection_internal, 1, 2, 0, |
2184 | doc: /* If we own the selection SELECTION, disown it. | |
2185 | Disowning it means there is no such selection. */) | |
2186 | (selection, time) | |
ede4db72 RS |
2187 | Lisp_Object selection; |
2188 | Lisp_Object time; | |
2189 | { | |
ede4db72 RS |
2190 | Time timestamp; |
2191 | Atom selection_atom; | |
31df61d6 AS |
2192 | union { |
2193 | struct selection_input_event sie; | |
2194 | struct input_event ie; | |
2195 | } event; | |
3834c318 | 2196 | Display *display; |
5c3a351a | 2197 | struct x_display_info *dpyinfo; |
378c33ca | 2198 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2199 | |
703e0710 | 2200 | check_x (); |
378c33ca GM |
2201 | display = FRAME_X_DISPLAY (sf); |
2202 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
b7826503 | 2203 | CHECK_SYMBOL (selection); |
ede4db72 | 2204 | if (NILP (time)) |
7da64e5c | 2205 | timestamp = last_event_timestamp; |
ede4db72 RS |
2206 | else |
2207 | timestamp = cons_to_long (time); | |
2208 | ||
2209 | if (NILP (assq_no_quit (selection, Vselection_alist))) | |
2210 | return Qnil; /* Don't disown the selection when we're not the owner. */ | |
2211 | ||
5c3a351a | 2212 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection); |
ede4db72 RS |
2213 | |
2214 | BLOCK_INPUT; | |
2215 | XSetSelectionOwner (display, selection_atom, None, timestamp); | |
2216 | UNBLOCK_INPUT; | |
2217 | ||
eb8c3be9 | 2218 | /* It doesn't seem to be guaranteed that a SelectionClear event will be |
ede4db72 RS |
2219 | generated for a window which owns the selection when that window sets |
2220 | the selection owner to None. The NCD server does, the MIT Sun4 server | |
2221 | doesn't. So we synthesize one; this means we might get two, but | |
2222 | that's ok, because the second one won't have any effect. */ | |
31df61d6 AS |
2223 | SELECTION_EVENT_DISPLAY (&event.sie) = display; |
2224 | SELECTION_EVENT_SELECTION (&event.sie) = selection_atom; | |
2225 | SELECTION_EVENT_TIME (&event.sie) = timestamp; | |
2226 | x_handle_selection_clear (&event.ie); | |
ede4db72 RS |
2227 | |
2228 | return Qt; | |
2229 | } | |
2230 | ||
a87ed99c RS |
2231 | /* Get rid of all the selections in buffer BUFFER. |
2232 | This is used when we kill a buffer. */ | |
2233 | ||
2234 | void | |
2235 | x_disown_buffer_selections (buffer) | |
2236 | Lisp_Object buffer; | |
2237 | { | |
2238 | Lisp_Object tail; | |
2239 | struct buffer *buf = XBUFFER (buffer); | |
2240 | ||
8e713be6 | 2241 | for (tail = Vselection_alist; CONSP (tail); tail = XCDR (tail)) |
a87ed99c RS |
2242 | { |
2243 | Lisp_Object elt, value; | |
8e713be6 KR |
2244 | elt = XCAR (tail); |
2245 | value = XCDR (elt); | |
2246 | if (CONSP (value) && MARKERP (XCAR (value)) | |
2247 | && XMARKER (XCAR (value))->buffer == buf) | |
2248 | Fx_disown_selection_internal (XCAR (elt), Qnil); | |
a87ed99c RS |
2249 | } |
2250 | } | |
ede4db72 RS |
2251 | |
2252 | DEFUN ("x-selection-owner-p", Fx_selection_owner_p, Sx_selection_owner_p, | |
8c1a1077 PJ |
2253 | 0, 1, 0, |
2254 | doc: /* Whether the current Emacs process owns the given X Selection. | |
2255 | The arg should be the name of the selection in question, typically one of | |
2256 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2257 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2258 | For convenience, the symbol nil is the same as `PRIMARY', | |
2259 | and t is the same as `SECONDARY'. */) | |
2260 | (selection) | |
ede4db72 RS |
2261 | Lisp_Object selection; |
2262 | { | |
703e0710 | 2263 | check_x (); |
b7826503 | 2264 | CHECK_SYMBOL (selection); |
ede4db72 RS |
2265 | if (EQ (selection, Qnil)) selection = QPRIMARY; |
2266 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
1b65481e | 2267 | |
ede4db72 RS |
2268 | if (NILP (Fassq (selection, Vselection_alist))) |
2269 | return Qnil; | |
2270 | return Qt; | |
2271 | } | |
2272 | ||
2273 | DEFUN ("x-selection-exists-p", Fx_selection_exists_p, Sx_selection_exists_p, | |
8c1a1077 PJ |
2274 | 0, 1, 0, |
2275 | doc: /* Whether there is an owner for the given X Selection. | |
2276 | The arg should be the name of the selection in question, typically one of | |
2277 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2278 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2279 | For convenience, the symbol nil is the same as `PRIMARY', | |
2280 | and t is the same as `SECONDARY'. */) | |
2281 | (selection) | |
ede4db72 RS |
2282 | Lisp_Object selection; |
2283 | { | |
2284 | Window owner; | |
356ba514 | 2285 | Atom atom; |
3834c318 | 2286 | Display *dpy; |
378c33ca | 2287 | struct frame *sf = SELECTED_FRAME (); |
3834c318 | 2288 | |
b8c70430 | 2289 | /* It should be safe to call this before we have an X frame. */ |
378c33ca | 2290 | if (! FRAME_X_P (sf)) |
b8c70430 RS |
2291 | return Qnil; |
2292 | ||
378c33ca | 2293 | dpy = FRAME_X_DISPLAY (sf); |
b7826503 | 2294 | CHECK_SYMBOL (selection); |
ede4db72 RS |
2295 | if (!NILP (Fx_selection_owner_p (selection))) |
2296 | return Qt; | |
356ba514 RS |
2297 | if (EQ (selection, Qnil)) selection = QPRIMARY; |
2298 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
378c33ca | 2299 | atom = symbol_to_x_atom (FRAME_X_DISPLAY_INFO (sf), dpy, selection); |
356ba514 RS |
2300 | if (atom == 0) |
2301 | return Qnil; | |
ede4db72 | 2302 | BLOCK_INPUT; |
356ba514 | 2303 | owner = XGetSelectionOwner (dpy, atom); |
ede4db72 RS |
2304 | UNBLOCK_INPUT; |
2305 | return (owner ? Qt : Qnil); | |
2306 | } | |
2307 | ||
2308 | \f | |
2309 | #ifdef CUT_BUFFER_SUPPORT | |
2310 | ||
ede4db72 RS |
2311 | /* Ensure that all 8 cut buffers exist. ICCCM says we gotta... */ |
2312 | static void | |
2313 | initialize_cut_buffers (display, window) | |
2314 | Display *display; | |
2315 | Window window; | |
2316 | { | |
2317 | unsigned char *data = (unsigned char *) ""; | |
2318 | BLOCK_INPUT; | |
2319 | #define FROB(atom) XChangeProperty (display, window, atom, XA_STRING, 8, \ | |
2320 | PropModeAppend, data, 0) | |
2321 | FROB (XA_CUT_BUFFER0); | |
2322 | FROB (XA_CUT_BUFFER1); | |
2323 | FROB (XA_CUT_BUFFER2); | |
2324 | FROB (XA_CUT_BUFFER3); | |
2325 | FROB (XA_CUT_BUFFER4); | |
2326 | FROB (XA_CUT_BUFFER5); | |
2327 | FROB (XA_CUT_BUFFER6); | |
2328 | FROB (XA_CUT_BUFFER7); | |
2329 | #undef FROB | |
2330 | UNBLOCK_INPUT; | |
ede4db72 RS |
2331 | } |
2332 | ||
2333 | ||
b7826503 PJ |
2334 | #define CHECK_CUT_BUFFER(symbol) \ |
2335 | { CHECK_SYMBOL ((symbol)); \ | |
ede4db72 RS |
2336 | if (!EQ((symbol), QCUT_BUFFER0) && !EQ((symbol), QCUT_BUFFER1) \ |
2337 | && !EQ((symbol), QCUT_BUFFER2) && !EQ((symbol), QCUT_BUFFER3) \ | |
2338 | && !EQ((symbol), QCUT_BUFFER4) && !EQ((symbol), QCUT_BUFFER5) \ | |
2339 | && !EQ((symbol), QCUT_BUFFER6) && !EQ((symbol), QCUT_BUFFER7)) \ | |
2340 | Fsignal (Qerror, \ | |
a87ed99c | 2341 | Fcons (build_string ("doesn't name a cut buffer"), \ |
ede4db72 RS |
2342 | Fcons ((symbol), Qnil))); \ |
2343 | } | |
2344 | ||
a87ed99c | 2345 | DEFUN ("x-get-cut-buffer-internal", Fx_get_cut_buffer_internal, |
8c1a1077 PJ |
2346 | Sx_get_cut_buffer_internal, 1, 1, 0, |
2347 | doc: /* Returns the value of the named cut buffer (typically CUT_BUFFER0). */) | |
2348 | (buffer) | |
ede4db72 RS |
2349 | Lisp_Object buffer; |
2350 | { | |
3834c318 | 2351 | Window window; |
ede4db72 RS |
2352 | Atom buffer_atom; |
2353 | unsigned char *data; | |
2354 | int bytes; | |
2355 | Atom type; | |
2356 | int format; | |
2357 | unsigned long size; | |
2358 | Lisp_Object ret; | |
3834c318 | 2359 | Display *display; |
5c3a351a | 2360 | struct x_display_info *dpyinfo; |
378c33ca | 2361 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2362 | |
703e0710 | 2363 | check_x (); |
378c33ca GM |
2364 | display = FRAME_X_DISPLAY (sf); |
2365 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
3834c318 | 2366 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
b7826503 | 2367 | CHECK_CUT_BUFFER (buffer); |
5c3a351a | 2368 | buffer_atom = symbol_to_x_atom (dpyinfo, display, buffer); |
ede4db72 RS |
2369 | |
2370 | x_get_window_property (display, window, buffer_atom, &data, &bytes, | |
2371 | &type, &format, &size, 0); | |
22e00739 RS |
2372 | if (!data || !format) |
2373 | return Qnil; | |
1b65481e | 2374 | |
ede4db72 RS |
2375 | if (format != 8 || type != XA_STRING) |
2376 | Fsignal (Qerror, | |
2377 | Fcons (build_string ("cut buffer doesn't contain 8-bit data"), | |
d9c0d4a3 | 2378 | Fcons (x_atom_to_symbol (display, type), |
ede4db72 RS |
2379 | Fcons (make_number (format), Qnil)))); |
2380 | ||
3f6b532c | 2381 | ret = (bytes ? make_unibyte_string ((char *) data, bytes) : Qnil); |
4feb31b2 | 2382 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 2383 | calls xmalloc itself. */ |
4feb31b2 | 2384 | xfree (data); |
ede4db72 RS |
2385 | return ret; |
2386 | } | |
2387 | ||
2388 | ||
a87ed99c | 2389 | DEFUN ("x-store-cut-buffer-internal", Fx_store_cut_buffer_internal, |
8c1a1077 PJ |
2390 | Sx_store_cut_buffer_internal, 2, 2, 0, |
2391 | doc: /* Sets the value of the named cut buffer (typically CUT_BUFFER0). */) | |
2392 | (buffer, string) | |
ede4db72 RS |
2393 | Lisp_Object buffer, string; |
2394 | { | |
3834c318 | 2395 | Window window; |
ede4db72 RS |
2396 | Atom buffer_atom; |
2397 | unsigned char *data; | |
2398 | int bytes; | |
2399 | int bytes_remaining; | |
3834c318 RS |
2400 | int max_bytes; |
2401 | Display *display; | |
378c33ca | 2402 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2403 | |
703e0710 | 2404 | check_x (); |
378c33ca | 2405 | display = FRAME_X_DISPLAY (sf); |
3834c318 RS |
2406 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
2407 | ||
2408 | max_bytes = SELECTION_QUANTUM (display); | |
2409 | if (max_bytes > MAX_SELECTION_QUANTUM) | |
2410 | max_bytes = MAX_SELECTION_QUANTUM; | |
2411 | ||
b7826503 PJ |
2412 | CHECK_CUT_BUFFER (buffer); |
2413 | CHECK_STRING (string); | |
378c33ca | 2414 | buffer_atom = symbol_to_x_atom (FRAME_X_DISPLAY_INFO (sf), |
5c3a351a | 2415 | display, buffer); |
d5db4077 KR |
2416 | data = (unsigned char *) SDATA (string); |
2417 | bytes = SBYTES (string); | |
ede4db72 RS |
2418 | bytes_remaining = bytes; |
2419 | ||
378c33ca | 2420 | if (! FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized) |
04649dbc KH |
2421 | { |
2422 | initialize_cut_buffers (display, window); | |
378c33ca | 2423 | FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized = 1; |
04649dbc | 2424 | } |
ede4db72 RS |
2425 | |
2426 | BLOCK_INPUT; | |
10608c8c RS |
2427 | |
2428 | /* Don't mess up with an empty value. */ | |
2429 | if (!bytes_remaining) | |
2430 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
2431 | PropModeReplace, data, 0); | |
2432 | ||
ede4db72 RS |
2433 | while (bytes_remaining) |
2434 | { | |
2435 | int chunk = (bytes_remaining < max_bytes | |
2436 | ? bytes_remaining : max_bytes); | |
2437 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
2438 | (bytes_remaining == bytes | |
2439 | ? PropModeReplace | |
2440 | : PropModeAppend), | |
2441 | data, chunk); | |
2442 | data += chunk; | |
2443 | bytes_remaining -= chunk; | |
2444 | } | |
2445 | UNBLOCK_INPUT; | |
2446 | return string; | |
2447 | } | |
2448 | ||
2449 | ||
a87ed99c | 2450 | DEFUN ("x-rotate-cut-buffers-internal", Fx_rotate_cut_buffers_internal, |
8c1a1077 PJ |
2451 | Sx_rotate_cut_buffers_internal, 1, 1, 0, |
2452 | doc: /* Rotate the values of the cut buffers by the given number of step. | |
2453 | Positive means shift the values forward, negative means backward. */) | |
2454 | (n) | |
ede4db72 RS |
2455 | Lisp_Object n; |
2456 | { | |
3834c318 RS |
2457 | Window window; |
2458 | Atom props[8]; | |
2459 | Display *display; | |
378c33ca | 2460 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2461 | |
703e0710 | 2462 | check_x (); |
378c33ca | 2463 | display = FRAME_X_DISPLAY (sf); |
3834c318 | 2464 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
b7826503 | 2465 | CHECK_NUMBER (n); |
3834c318 RS |
2466 | if (XINT (n) == 0) |
2467 | return n; | |
378c33ca | 2468 | if (! FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized) |
04649dbc KH |
2469 | { |
2470 | initialize_cut_buffers (display, window); | |
378c33ca | 2471 | FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized = 1; |
04649dbc | 2472 | } |
3834c318 | 2473 | |
ede4db72 RS |
2474 | props[0] = XA_CUT_BUFFER0; |
2475 | props[1] = XA_CUT_BUFFER1; | |
2476 | props[2] = XA_CUT_BUFFER2; | |
2477 | props[3] = XA_CUT_BUFFER3; | |
2478 | props[4] = XA_CUT_BUFFER4; | |
2479 | props[5] = XA_CUT_BUFFER5; | |
2480 | props[6] = XA_CUT_BUFFER6; | |
2481 | props[7] = XA_CUT_BUFFER7; | |
2482 | BLOCK_INPUT; | |
2483 | XRotateWindowProperties (display, window, props, 8, XINT (n)); | |
2484 | UNBLOCK_INPUT; | |
2485 | return n; | |
2486 | } | |
2487 | ||
2488 | #endif | |
2489 | \f | |
1fb3821b JD |
2490 | /*********************************************************************** |
2491 | Drag and drop support | |
2492 | ***********************************************************************/ | |
2493 | /* Check that lisp values are of correct type for x_fill_property_data. | |
2494 | That is, number, string or a cons with two numbers (low and high 16 | |
2495 | bit parts of a 32 bit number). */ | |
2496 | ||
2497 | int | |
2498 | x_check_property_data (data) | |
2499 | Lisp_Object data; | |
2500 | { | |
2501 | Lisp_Object iter; | |
2502 | int size = 0; | |
2503 | ||
2504 | for (iter = data; CONSP (iter) && size != -1; iter = XCDR (iter), ++size) | |
2505 | { | |
2506 | Lisp_Object o = XCAR (iter); | |
2507 | ||
2508 | if (! NUMBERP (o) && ! STRINGP (o) && ! CONSP (o)) | |
2509 | size = -1; | |
2510 | else if (CONSP (o) && | |
2511 | (! NUMBERP (XCAR (o)) || ! NUMBERP (XCDR (o)))) | |
2512 | size = -1; | |
2513 | } | |
2514 | ||
2515 | return size; | |
2516 | } | |
2517 | ||
2518 | /* Convert lisp values to a C array. Values may be a number, a string | |
2519 | which is taken as an X atom name and converted to the atom value, or | |
2520 | a cons containing the two 16 bit parts of a 32 bit number. | |
2521 | ||
2522 | DPY is the display use to look up X atoms. | |
2523 | DATA is a Lisp list of values to be converted. | |
2524 | RET is the C array that contains the converted values. It is assumed | |
ff59904a | 2525 | it is big enough to hold all values. |
e22cf39c JD |
2526 | FORMAT is 8, 16 or 32 and denotes char/short/long for each C value to |
2527 | be stored in RET. Note that long is used for 32 even if long is more | |
2528 | than 32 bits (see man pages for XChangeProperty, XGetWindowProperty and | |
2529 | XClientMessageEvent). */ | |
1fb3821b JD |
2530 | |
2531 | void | |
2532 | x_fill_property_data (dpy, data, ret, format) | |
2533 | Display *dpy; | |
2534 | Lisp_Object data; | |
2535 | void *ret; | |
2536 | int format; | |
2537 | { | |
e22cf39c JD |
2538 | long val; |
2539 | long *d32 = (long *) ret; | |
2540 | short *d16 = (short *) ret; | |
2541 | char *d08 = (char *) ret; | |
1fb3821b JD |
2542 | Lisp_Object iter; |
2543 | ||
2544 | for (iter = data; CONSP (iter); iter = XCDR (iter)) | |
2545 | { | |
2546 | Lisp_Object o = XCAR (iter); | |
2547 | ||
2548 | if (INTEGERP (o)) | |
e22cf39c | 2549 | val = (long) XFASTINT (o); |
1fb3821b | 2550 | else if (FLOATP (o)) |
e22cf39c | 2551 | val = (long) XFLOAT_DATA (o); |
1fb3821b | 2552 | else if (CONSP (o)) |
e22cf39c | 2553 | val = (long) cons_to_long (o); |
1fb3821b JD |
2554 | else if (STRINGP (o)) |
2555 | { | |
2556 | BLOCK_INPUT; | |
e22cf39c | 2557 | val = (long) XInternAtom (dpy, (char *) SDATA (o), False); |
1fb3821b JD |
2558 | UNBLOCK_INPUT; |
2559 | } | |
2560 | else | |
2561 | error ("Wrong type, must be string, number or cons"); | |
2562 | ||
2563 | if (format == 8) | |
e22cf39c | 2564 | *d08++ = (char) val; |
1fb3821b | 2565 | else if (format == 16) |
e22cf39c | 2566 | *d16++ = (short) val; |
1fb3821b JD |
2567 | else |
2568 | *d32++ = val; | |
2569 | } | |
2570 | } | |
2571 | ||
2572 | /* Convert an array of C values to a Lisp list. | |
2573 | F is the frame to be used to look up X atoms if the TYPE is XA_ATOM. | |
2574 | DATA is a C array of values to be converted. | |
2575 | TYPE is the type of the data. Only XA_ATOM is special, it converts | |
2576 | each number in DATA to its corresponfing X atom as a symbol. | |
2577 | FORMAT is 8, 16 or 32 and gives the size in bits for each C value to | |
2578 | be stored in RET. | |
2579 | SIZE is the number of elements in DATA. | |
2580 | ||
b8d6f4af JD |
2581 | Important: When format is 32, data should contain an array of int, |
2582 | not an array of long as the X library returns. This makes a difference | |
2583 | when sizeof(long) != sizeof(int). | |
2584 | ||
1fb3821b JD |
2585 | Also see comment for selection_data_to_lisp_data above. */ |
2586 | ||
2587 | Lisp_Object | |
2588 | x_property_data_to_lisp (f, data, type, format, size) | |
2589 | struct frame *f; | |
2590 | unsigned char *data; | |
2591 | Atom type; | |
2592 | int format; | |
2593 | unsigned long size; | |
2594 | { | |
2595 | return selection_data_to_lisp_data (FRAME_X_DISPLAY (f), | |
2596 | data, size*format/8, type, format); | |
2597 | } | |
2598 | ||
31f16913 | 2599 | /* Get the mouse position in frame relative coordinates. */ |
1fb3821b JD |
2600 | |
2601 | static void | |
2602 | mouse_position_for_drop (f, x, y) | |
2603 | FRAME_PTR f; | |
2604 | int *x; | |
2605 | int *y; | |
2606 | { | |
2607 | Window root, dummy_window; | |
2608 | int dummy; | |
2609 | ||
2610 | BLOCK_INPUT; | |
2611 | ||
2612 | XQueryPointer (FRAME_X_DISPLAY (f), | |
2613 | DefaultRootWindow (FRAME_X_DISPLAY (f)), | |
2614 | ||
2615 | /* The root window which contains the pointer. */ | |
2616 | &root, | |
2617 | ||
2618 | /* Window pointer is on, not used */ | |
2619 | &dummy_window, | |
2620 | ||
2621 | /* The position on that root window. */ | |
2622 | x, y, | |
2623 | ||
2624 | /* x/y in dummy_window coordinates, not used. */ | |
2625 | &dummy, &dummy, | |
2626 | ||
2627 | /* Modifier keys and pointer buttons, about which | |
2628 | we don't care. */ | |
2629 | (unsigned int *) &dummy); | |
2630 | ||
2631 | ||
2632 | /* Absolute to relative. */ | |
2633 | *x -= f->left_pos + FRAME_OUTER_TO_INNER_DIFF_X (f); | |
2634 | *y -= f->top_pos + FRAME_OUTER_TO_INNER_DIFF_Y (f); | |
2635 | ||
2636 | UNBLOCK_INPUT; | |
2637 | } | |
2638 | ||
2639 | DEFUN ("x-get-atom-name", Fx_get_atom_name, | |
2640 | Sx_get_atom_name, 1, 2, 0, | |
2641 | doc: /* Return the X atom name for VALUE as a string. | |
2642 | VALUE may be a number or a cons where the car is the upper 16 bits and | |
2643 | the cdr is the lower 16 bits of a 32 bit value. | |
2644 | Use the display for FRAME or the current frame if FRAME is not given or nil. | |
2645 | ||
2646 | If the value is 0 or the atom is not known, return the empty string. */) | |
2647 | (value, frame) | |
2648 | Lisp_Object value, frame; | |
2649 | { | |
2650 | struct frame *f = check_x_frame (frame); | |
2651 | char *name = 0; | |
2652 | Lisp_Object ret = Qnil; | |
2653 | int count; | |
2654 | Display *dpy = FRAME_X_DISPLAY (f); | |
2655 | Atom atom; | |
2656 | ||
2657 | if (INTEGERP (value)) | |
2658 | atom = (Atom) XUINT (value); | |
2659 | else if (FLOATP (value)) | |
ff59904a | 2660 | atom = (Atom) XFLOAT_DATA (value); |
1fb3821b JD |
2661 | else if (CONSP (value)) |
2662 | atom = (Atom) cons_to_long (value); | |
2663 | else | |
2664 | error ("Wrong type, value must be number or cons"); | |
2665 | ||
2666 | BLOCK_INPUT; | |
2667 | count = x_catch_errors (dpy); | |
2668 | ||
2669 | name = atom ? XGetAtomName (dpy, atom) : ""; | |
2670 | ||
2671 | if (! x_had_errors_p (dpy)) | |
2672 | ret = make_string (name, strlen (name)); | |
2673 | ||
2674 | x_uncatch_errors (dpy, count); | |
2675 | ||
2676 | if (atom && name) XFree (name); | |
2677 | if (NILP (ret)) ret = make_string ("", 0); | |
2678 | ||
2679 | UNBLOCK_INPUT; | |
2680 | ||
2681 | return ret; | |
2682 | } | |
2683 | ||
2684 | /* Convert an XClientMessageEvent to a Lisp event of type DRAG_N_DROP_EVENT. | |
2685 | TODO: Check if this client event really is a DND event? */ | |
2686 | ||
2687 | int | |
2688 | x_handle_dnd_message (f, event, dpyinfo, bufp) | |
2689 | struct frame *f; | |
2690 | XClientMessageEvent *event; | |
2691 | struct x_display_info *dpyinfo; | |
2692 | struct input_event *bufp; | |
2693 | { | |
2694 | Lisp_Object vec; | |
2695 | Lisp_Object frame; | |
e22cf39c JD |
2696 | /* format 32 => size 5, format 16 => size 10, format 8 => size 20 */ |
2697 | unsigned long size = 160/event->format; | |
1fb3821b | 2698 | int x, y; |
31f16913 JD |
2699 | unsigned char *data = (unsigned char *) event->data.b; |
2700 | int idata[5]; | |
1fb3821b JD |
2701 | |
2702 | XSETFRAME (frame, f); | |
2703 | ||
31f16913 JD |
2704 | /* On a 64 bit machine, the event->data.l array members are 64 bits (long), |
2705 | but the x_property_data_to_lisp (or rather selection_data_to_lisp_data) | |
2706 | function expects them to be of size int (i.e. 32). So to be able to | |
2707 | use that function, put the data in the form it expects if format is 32. */ | |
2708 | ||
2709 | if (event->format == 32 && event->format < BITS_PER_LONG) | |
2710 | { | |
2711 | int i; | |
2712 | for (i = 0; i < 5; ++i) /* There are only 5 longs in a ClientMessage. */ | |
2713 | idata[i] = (int) event->data.l[i]; | |
2714 | data = (unsigned char *) idata; | |
2715 | } | |
2716 | ||
d2f14999 | 2717 | vec = Fmake_vector (make_number (4), Qnil); |
1fb3821b JD |
2718 | AREF (vec, 0) = SYMBOL_NAME (x_atom_to_symbol (FRAME_X_DISPLAY (f), |
2719 | event->message_type)); | |
2720 | AREF (vec, 1) = frame; | |
d2f14999 | 2721 | AREF (vec, 2) = make_number (event->format); |
1fb3821b | 2722 | AREF (vec, 3) = x_property_data_to_lisp (f, |
31f16913 | 2723 | data, |
1fb3821b JD |
2724 | event->message_type, |
2725 | event->format, | |
2726 | size); | |
2727 | ||
2728 | mouse_position_for_drop (f, &x, &y); | |
2729 | bufp->kind = DRAG_N_DROP_EVENT; | |
2730 | bufp->frame_or_window = Fcons (frame, vec); | |
2731 | bufp->timestamp = CurrentTime; | |
2732 | bufp->x = make_number (x); | |
2733 | bufp->y = make_number (y); | |
2734 | bufp->arg = Qnil; | |
2735 | bufp->modifiers = 0; | |
2736 | ||
2737 | return 1; | |
2738 | } | |
2739 | ||
2740 | DEFUN ("x-send-client-message", Fx_send_client_event, | |
2741 | Sx_send_client_message, 6, 6, 0, | |
2742 | doc: /* Send a client message of MESSAGE-TYPE to window DEST on DISPLAY. | |
2743 | ||
2744 | For DISPLAY, specify either a frame or a display name (a string). | |
2745 | If DISPLAY is nil, that stands for the selected frame's display. | |
2746 | DEST may be a number, in which case it is a Window id. The value 0 may | |
2747 | be used to send to the root window of the DISPLAY. | |
2748 | If DEST is a cons, it is converted to a 32 bit number | |
2749 | with the high 16 bits from the car and the lower 16 bit from the cdr. That | |
2750 | number is then used as a window id. | |
2751 | If DEST is a frame the event is sent to the outer window of that frame. | |
2752 | Nil means the currently selected frame. | |
2753 | If DEST is the string "PointerWindow" the event is sent to the window that | |
2754 | contains the pointer. If DEST is the string "InputFocus" the event is | |
2755 | sent to the window that has the input focus. | |
2756 | FROM is the frame sending the event. Use nil for currently selected frame. | |
2757 | MESSAGE-TYPE is the name of an Atom as a string. | |
2758 | FORMAT must be one of 8, 16 or 32 and determines the size of the values in | |
2759 | bits. VALUES is a list of numbers, cons and/or strings containing the values | |
2760 | to send. If a value is a string, it is converted to an Atom and the value of | |
2761 | the Atom is sent. If a value is a cons, it is converted to a 32 bit number | |
2762 | with the high 16 bits from the car and the lower 16 bit from the cdr. | |
2763 | If more values than fits into the event is given, the excessive values | |
2764 | are ignored. */) | |
2765 | (display, dest, from, message_type, format, values) | |
2766 | Lisp_Object display, dest, from, message_type, format, values; | |
2767 | { | |
2768 | struct x_display_info *dpyinfo = check_x_display_info (display); | |
2769 | Window wdest; | |
2770 | XEvent event; | |
2771 | Lisp_Object cons; | |
2772 | int size; | |
2773 | struct frame *f = check_x_frame (from); | |
2774 | int count; | |
2775 | int to_root; | |
2776 | ||
2777 | CHECK_STRING (message_type); | |
2778 | CHECK_NUMBER (format); | |
2779 | CHECK_CONS (values); | |
2780 | ||
2781 | if (x_check_property_data (values) == -1) | |
2782 | error ("Bad data in VALUES, must be number, cons or string"); | |
2783 | ||
2784 | event.xclient.type = ClientMessage; | |
2785 | event.xclient.format = XFASTINT (format); | |
2786 | ||
2787 | if (event.xclient.format != 8 && event.xclient.format != 16 | |
2788 | && event.xclient.format != 32) | |
2789 | error ("FORMAT must be one of 8, 16 or 32"); | |
a0ecb2ac | 2790 | |
1fb3821b JD |
2791 | if (FRAMEP (dest) || NILP (dest)) |
2792 | { | |
2793 | struct frame *fdest = check_x_frame (dest); | |
2794 | wdest = FRAME_OUTER_WINDOW (fdest); | |
2795 | } | |
2796 | else if (STRINGP (dest)) | |
2797 | { | |
2798 | if (strcmp (SDATA (dest), "PointerWindow") == 0) | |
2799 | wdest = PointerWindow; | |
2800 | else if (strcmp (SDATA (dest), "InputFocus") == 0) | |
2801 | wdest = InputFocus; | |
2802 | else | |
2803 | error ("DEST as a string must be one of PointerWindow or InputFocus"); | |
2804 | } | |
2805 | else if (INTEGERP (dest)) | |
2806 | wdest = (Window) XFASTINT (dest); | |
2807 | else if (FLOATP (dest)) | |
ff59904a | 2808 | wdest = (Window) XFLOAT_DATA (dest); |
1fb3821b JD |
2809 | else if (CONSP (dest)) |
2810 | { | |
2811 | if (! NUMBERP (XCAR (dest)) || ! NUMBERP (XCDR (dest))) | |
2812 | error ("Both car and cdr for DEST must be numbers"); | |
2813 | else | |
2814 | wdest = (Window) cons_to_long (dest); | |
2815 | } | |
2816 | else | |
2817 | error ("DEST must be a frame, nil, string, number or cons"); | |
2818 | ||
2819 | if (wdest == 0) wdest = dpyinfo->root_window; | |
2820 | to_root = wdest == dpyinfo->root_window; | |
2821 | ||
2822 | for (cons = values, size = 0; CONSP (cons); cons = XCDR (cons), ++size) | |
2823 | ; | |
2824 | ||
2825 | BLOCK_INPUT; | |
2826 | ||
2827 | event.xclient.message_type | |
2828 | = XInternAtom (dpyinfo->display, SDATA (message_type), False); | |
2829 | event.xclient.display = dpyinfo->display; | |
2830 | ||
2831 | /* Some clients (metacity for example) expects sending window to be here | |
2832 | when sending to the root window. */ | |
2833 | event.xclient.window = to_root ? FRAME_OUTER_WINDOW (f) : wdest; | |
2834 | ||
6e816df5 | 2835 | |
e22cf39c JD |
2836 | memset (event.xclient.data.b, 0, sizeof (event.xclient.data.b)); |
2837 | x_fill_property_data (dpyinfo->display, values, event.xclient.data.b, | |
2838 | event.xclient.format); | |
31f16913 | 2839 | |
1fb3821b JD |
2840 | /* If event mask is 0 the event is sent to the client that created |
2841 | the destination window. But if we are sending to the root window, | |
2842 | there is no such client. Then we set the event mask to 0xffff. The | |
2843 | event then goes to clients selecting for events on the root window. */ | |
2844 | count = x_catch_errors (dpyinfo->display); | |
2845 | { | |
2846 | int propagate = to_root ? False : True; | |
2847 | unsigned mask = to_root ? 0xffff : 0; | |
2848 | XSendEvent (dpyinfo->display, wdest, propagate, mask, &event); | |
2849 | XFlush (dpyinfo->display); | |
2850 | } | |
2851 | x_uncatch_errors (dpyinfo->display, count); | |
2852 | UNBLOCK_INPUT; | |
2853 | ||
2854 | return Qnil; | |
2855 | } | |
2856 | ||
2857 | \f | |
ede4db72 RS |
2858 | void |
2859 | syms_of_xselect () | |
2860 | { | |
ede4db72 RS |
2861 | defsubr (&Sx_get_selection_internal); |
2862 | defsubr (&Sx_own_selection_internal); | |
2863 | defsubr (&Sx_disown_selection_internal); | |
2864 | defsubr (&Sx_selection_owner_p); | |
2865 | defsubr (&Sx_selection_exists_p); | |
2866 | ||
2867 | #ifdef CUT_BUFFER_SUPPORT | |
a87ed99c RS |
2868 | defsubr (&Sx_get_cut_buffer_internal); |
2869 | defsubr (&Sx_store_cut_buffer_internal); | |
2870 | defsubr (&Sx_rotate_cut_buffers_internal); | |
ede4db72 RS |
2871 | #endif |
2872 | ||
1fb3821b JD |
2873 | defsubr (&Sx_get_atom_name); |
2874 | defsubr (&Sx_send_client_message); | |
2875 | ||
ede4db72 RS |
2876 | reading_selection_reply = Fcons (Qnil, Qnil); |
2877 | staticpro (&reading_selection_reply); | |
2878 | reading_selection_window = 0; | |
2879 | reading_which_selection = 0; | |
2880 | ||
2881 | property_change_wait_list = 0; | |
2f65feb6 | 2882 | prop_location_identifier = 0; |
ede4db72 RS |
2883 | property_change_reply = Fcons (Qnil, Qnil); |
2884 | staticpro (&property_change_reply); | |
2885 | ||
2886 | Vselection_alist = Qnil; | |
2887 | staticpro (&Vselection_alist); | |
2888 | ||
2889 | DEFVAR_LISP ("selection-converter-alist", &Vselection_converter_alist, | |
8c1a1077 PJ |
2890 | doc: /* An alist associating X Windows selection-types with functions. |
2891 | These functions are called to convert the selection, with three args: | |
2892 | the name of the selection (typically `PRIMARY', `SECONDARY', or `CLIPBOARD'); | |
2893 | a desired type to which the selection should be converted; | |
2894 | and the local selection value (whatever was given to `x-own-selection'). | |
2895 | ||
2896 | The function should return the value to send to the X server | |
2897 | \(typically a string). A return value of nil | |
2898 | means that the conversion could not be done. | |
2899 | A return value which is the symbol `NULL' | |
2900 | means that a side-effect was executed, | |
2901 | and there is no meaningful selection value. */); | |
ede4db72 RS |
2902 | Vselection_converter_alist = Qnil; |
2903 | ||
c917a8de | 2904 | DEFVAR_LISP ("x-lost-selection-functions", &Vx_lost_selection_functions, |
8c1a1077 PJ |
2905 | doc: /* A list of functions to be called when Emacs loses an X selection. |
2906 | \(This happens when some other X client makes its own selection | |
2907 | or when a Lisp program explicitly clears the selection.) | |
2908 | The functions are called with one argument, the selection type | |
2909 | \(a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'). */); | |
c917a8de | 2910 | Vx_lost_selection_functions = Qnil; |
ede4db72 | 2911 | |
c917a8de | 2912 | DEFVAR_LISP ("x-sent-selection-functions", &Vx_sent_selection_functions, |
8c1a1077 PJ |
2913 | doc: /* A list of functions to be called when Emacs answers a selection request. |
2914 | The functions are called with four arguments: | |
2915 | - the selection name (typically `PRIMARY', `SECONDARY', or `CLIPBOARD'); | |
2916 | - the selection-type which Emacs was asked to convert the | |
2917 | selection into before sending (for example, `STRING' or `LENGTH'); | |
2918 | - a flag indicating success or failure for responding to the request. | |
2919 | We might have failed (and declined the request) for any number of reasons, | |
2920 | including being asked for a selection that we no longer own, or being asked | |
2921 | to convert into a type that we don't know about or that is inappropriate. | |
2922 | This hook doesn't let you change the behavior of Emacs's selection replies, | |
2923 | it merely informs you that they have happened. */); | |
c917a8de | 2924 | Vx_sent_selection_functions = Qnil; |
ede4db72 | 2925 | |
93e4ce1b | 2926 | DEFVAR_LISP ("selection-coding-system", &Vselection_coding_system, |
8c1a1077 PJ |
2927 | doc: /* Coding system for communicating with other X clients. |
2928 | When sending or receiving text via cut_buffer, selection, and clipboard, | |
2929 | the text is encoded or decoded by this coding system. | |
5a79ea57 EZ |
2930 | The default value is `compound-text-with-extensions'. */); |
2931 | Vselection_coding_system = intern ("compound-text-with-extensions"); | |
2584c9ec | 2932 | |
16cd5029 | 2933 | DEFVAR_LISP ("next-selection-coding-system", &Vnext_selection_coding_system, |
8c1a1077 PJ |
2934 | doc: /* Coding system for the next communication with other X clients. |
2935 | Usually, `selection-coding-system' is used for communicating with | |
f8f8d464 JB |
2936 | other X clients. But, if this variable is set, it is used for the |
2937 | next communication only. After the communication, this variable is | |
8c1a1077 | 2938 | set to nil. */); |
16cd5029 KH |
2939 | Vnext_selection_coding_system = Qnil; |
2940 | ||
ede4db72 | 2941 | DEFVAR_INT ("x-selection-timeout", &x_selection_timeout, |
8c1a1077 PJ |
2942 | doc: /* Number of milliseconds to wait for a selection reply. |
2943 | If the selection owner doesn't reply in this time, we give up. | |
2944 | A value of 0 means wait as long as necessary. This is initialized from the | |
2945 | \"*selectionTimeout\" resource. */); | |
ede4db72 RS |
2946 | x_selection_timeout = 0; |
2947 | ||
2948 | QPRIMARY = intern ("PRIMARY"); staticpro (&QPRIMARY); | |
2949 | QSECONDARY = intern ("SECONDARY"); staticpro (&QSECONDARY); | |
2950 | QSTRING = intern ("STRING"); staticpro (&QSTRING); | |
2951 | QINTEGER = intern ("INTEGER"); staticpro (&QINTEGER); | |
2952 | QCLIPBOARD = intern ("CLIPBOARD"); staticpro (&QCLIPBOARD); | |
2953 | QTIMESTAMP = intern ("TIMESTAMP"); staticpro (&QTIMESTAMP); | |
2954 | QTEXT = intern ("TEXT"); staticpro (&QTEXT); | |
e6c7c988 | 2955 | QCOMPOUND_TEXT = intern ("COMPOUND_TEXT"); staticpro (&QCOMPOUND_TEXT); |
5109c8dd | 2956 | QUTF8_STRING = intern ("UTF8_STRING"); staticpro (&QUTF8_STRING); |
ede4db72 RS |
2957 | QDELETE = intern ("DELETE"); staticpro (&QDELETE); |
2958 | QMULTIPLE = intern ("MULTIPLE"); staticpro (&QMULTIPLE); | |
2959 | QINCR = intern ("INCR"); staticpro (&QINCR); | |
2960 | QEMACS_TMP = intern ("_EMACS_TMP_"); staticpro (&QEMACS_TMP); | |
2961 | QTARGETS = intern ("TARGETS"); staticpro (&QTARGETS); | |
2962 | QATOM = intern ("ATOM"); staticpro (&QATOM); | |
2963 | QATOM_PAIR = intern ("ATOM_PAIR"); staticpro (&QATOM_PAIR); | |
2964 | QNULL = intern ("NULL"); staticpro (&QNULL); | |
5a79ea57 EZ |
2965 | Qcompound_text_with_extensions = intern ("compound-text-with-extensions"); |
2966 | staticpro (&Qcompound_text_with_extensions); | |
ede4db72 RS |
2967 | |
2968 | #ifdef CUT_BUFFER_SUPPORT | |
2969 | QCUT_BUFFER0 = intern ("CUT_BUFFER0"); staticpro (&QCUT_BUFFER0); | |
2970 | QCUT_BUFFER1 = intern ("CUT_BUFFER1"); staticpro (&QCUT_BUFFER1); | |
2971 | QCUT_BUFFER2 = intern ("CUT_BUFFER2"); staticpro (&QCUT_BUFFER2); | |
2972 | QCUT_BUFFER3 = intern ("CUT_BUFFER3"); staticpro (&QCUT_BUFFER3); | |
2973 | QCUT_BUFFER4 = intern ("CUT_BUFFER4"); staticpro (&QCUT_BUFFER4); | |
2974 | QCUT_BUFFER5 = intern ("CUT_BUFFER5"); staticpro (&QCUT_BUFFER5); | |
2975 | QCUT_BUFFER6 = intern ("CUT_BUFFER6"); staticpro (&QCUT_BUFFER6); | |
2976 | QCUT_BUFFER7 = intern ("CUT_BUFFER7"); staticpro (&QCUT_BUFFER7); | |
2977 | #endif | |
2978 | ||
e57ad4d8 KH |
2979 | Qforeign_selection = intern ("foreign-selection"); |
2980 | staticpro (&Qforeign_selection); | |
ede4db72 | 2981 | } |
ab5796a9 MB |
2982 | |
2983 | /* arch-tag: 7c293b0f-9918-4f69-8ac7-03e142307236 | |
2984 | (do not change this comment) */ |