Commit | Line | Data |
---|---|---|
2408b3a1 | 1 | /* X Selection processing for Emacs. |
0b5538bd | 2 | Copyright (C) 1993, 1994, 1995, 1996, 1997, 2000, 2001, 2002, 2003, |
aaef169d | 3 | 2004, 2005, 2006 Free Software Foundation, Inc. |
ede4db72 RS |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
4fc5845f LK |
19 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 | Boston, MA 02110-1301, USA. */ | |
ede4db72 | 21 | |
c6c5df7f | 22 | |
ede4db72 RS |
23 | /* Rewritten by jwz */ |
24 | ||
18160b98 | 25 | #include <config.h> |
5b698285 | 26 | #include <stdio.h> /* termhooks.h needs this */ |
678b3958 KS |
27 | |
28 | #ifdef HAVE_SYS_TYPES_H | |
29 | #include <sys/types.h> | |
30 | #endif | |
31 | #ifdef HAVE_UNISTD_H | |
32 | #include <unistd.h> | |
33 | #endif | |
34 | ||
ede4db72 RS |
35 | #include "lisp.h" |
36 | #include "xterm.h" /* for all of the X includes */ | |
7da64e5c RS |
37 | #include "dispextern.h" /* frame.h seems to want this */ |
38 | #include "frame.h" /* Need this to get the X window of selected_frame */ | |
9ac0d9e0 | 39 | #include "blockinput.h" |
5faa9b45 | 40 | #include "buffer.h" |
dfcf069d | 41 | #include "process.h" |
1fb3821b | 42 | #include "termhooks.h" |
dd0fe424 | 43 | #include "keyboard.h" |
1fb3821b JD |
44 | |
45 | #include <X11/Xproto.h> | |
7da64e5c | 46 | |
d9c0d4a3 GM |
47 | struct prop_location; |
48 | ||
49 | static Lisp_Object x_atom_to_symbol P_ ((Display *dpy, Atom atom)); | |
50 | static Atom symbol_to_x_atom P_ ((struct x_display_info *, Display *, | |
51 | Lisp_Object)); | |
52 | static void x_own_selection P_ ((Lisp_Object, Lisp_Object)); | |
5109c8dd | 53 | static Lisp_Object x_get_local_selection P_ ((Lisp_Object, Lisp_Object, int)); |
d9c0d4a3 GM |
54 | static void x_decline_selection_request P_ ((struct input_event *)); |
55 | static Lisp_Object x_selection_request_lisp_error P_ ((Lisp_Object)); | |
56 | static Lisp_Object queue_selection_requests_unwind P_ ((Lisp_Object)); | |
57 | static Lisp_Object some_frame_on_display P_ ((struct x_display_info *)); | |
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); |
ede4db72 | 405 | |
b7826503 | 406 | CHECK_SYMBOL (selection_name); |
5c3a351a | 407 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection_name); |
ede4db72 RS |
408 | |
409 | BLOCK_INPUT; | |
9ba8e10d | 410 | x_catch_errors (display); |
ede4db72 | 411 | XSetSelectionOwner (display, selection_atom, selecting_window, time); |
a7b24d46 | 412 | x_check_errors (display, "Can't set selection: %s"); |
4545fa20 | 413 | x_uncatch_errors (); |
ede4db72 RS |
414 | UNBLOCK_INPUT; |
415 | ||
416 | /* Now update the local cache */ | |
417 | { | |
418 | Lisp_Object selection_time; | |
419 | Lisp_Object selection_data; | |
420 | Lisp_Object prev_value; | |
421 | ||
422 | selection_time = long_to_cons ((unsigned long) time); | |
423 | selection_data = Fcons (selection_name, | |
424 | Fcons (selection_value, | |
118bd841 | 425 | Fcons (selection_time, |
378c33ca | 426 | Fcons (selected_frame, Qnil)))); |
ede4db72 RS |
427 | prev_value = assq_no_quit (selection_name, Vselection_alist); |
428 | ||
429 | Vselection_alist = Fcons (selection_data, Vselection_alist); | |
430 | ||
431 | /* If we already owned the selection, remove the old selection data. | |
432 | Perhaps we should destructively modify it instead. | |
433 | Don't use Fdelq as that may QUIT. */ | |
434 | if (!NILP (prev_value)) | |
435 | { | |
436 | Lisp_Object rest; /* we know it's not the CAR, so it's easy. */ | |
437 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) | |
8e713be6 | 438 | if (EQ (prev_value, Fcar (XCDR (rest)))) |
ede4db72 | 439 | { |
f3fbd155 | 440 | XSETCDR (rest, Fcdr (XCDR (rest))); |
ede4db72 RS |
441 | break; |
442 | } | |
443 | } | |
444 | } | |
445 | } | |
446 | \f | |
447 | /* Given a selection-name and desired type, look up our local copy of | |
448 | the selection value and convert it to the type. | |
449 | The value is nil or a string. | |
5109c8dd KH |
450 | This function is used both for remote requests (LOCAL_REQUEST is zero) |
451 | and for local x-get-selection-internal (LOCAL_REQUEST is nonzero). | |
ede4db72 RS |
452 | |
453 | This calls random Lisp code, and may signal or gc. */ | |
454 | ||
455 | static Lisp_Object | |
5109c8dd | 456 | x_get_local_selection (selection_symbol, target_type, local_request) |
ede4db72 | 457 | Lisp_Object selection_symbol, target_type; |
5109c8dd | 458 | int local_request; |
ede4db72 RS |
459 | { |
460 | Lisp_Object local_value; | |
461 | Lisp_Object handler_fn, value, type, check; | |
462 | int count; | |
463 | ||
464 | local_value = assq_no_quit (selection_symbol, Vselection_alist); | |
465 | ||
466 | if (NILP (local_value)) return Qnil; | |
467 | ||
468 | /* TIMESTAMP and MULTIPLE are special cases 'cause that's easiest. */ | |
469 | if (EQ (target_type, QTIMESTAMP)) | |
470 | { | |
471 | handler_fn = Qnil; | |
8e713be6 | 472 | value = XCAR (XCDR (XCDR (local_value))); |
ede4db72 RS |
473 | } |
474 | #if 0 | |
475 | else if (EQ (target_type, QDELETE)) | |
476 | { | |
477 | handler_fn = Qnil; | |
478 | Fx_disown_selection_internal | |
479 | (selection_symbol, | |
8e713be6 | 480 | XCAR (XCDR (XCDR (local_value)))); |
ede4db72 RS |
481 | value = QNULL; |
482 | } | |
483 | #endif | |
484 | ||
485 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
486 | else if (CONSP (target_type) | |
8e713be6 | 487 | && XCAR (target_type) == QMULTIPLE) |
ede4db72 | 488 | { |
9d2d1dd8 KH |
489 | Lisp_Object pairs; |
490 | int size; | |
ede4db72 | 491 | int i; |
8e713be6 | 492 | pairs = XCDR (target_type); |
9d2d1dd8 | 493 | size = XVECTOR (pairs)->size; |
ede4db72 RS |
494 | /* If the target is MULTIPLE, then target_type looks like |
495 | (MULTIPLE . [[SELECTION1 TARGET1] [SELECTION2 TARGET2] ... ]) | |
496 | We modify the second element of each pair in the vector and | |
497 | return it as [[SELECTION1 <value1>] [SELECTION2 <value2>] ... ] | |
498 | */ | |
499 | for (i = 0; i < size; i++) | |
500 | { | |
9d2d1dd8 KH |
501 | Lisp_Object pair; |
502 | pair = XVECTOR (pairs)->contents [i]; | |
ede4db72 RS |
503 | XVECTOR (pair)->contents [1] |
504 | = x_get_local_selection (XVECTOR (pair)->contents [0], | |
5109c8dd KH |
505 | XVECTOR (pair)->contents [1], |
506 | local_request); | |
ede4db72 RS |
507 | } |
508 | return pairs; | |
509 | } | |
510 | #endif | |
511 | else | |
512 | { | |
513 | /* Don't allow a quit within the converter. | |
514 | When the user types C-g, he would be surprised | |
515 | if by luck it came during a converter. */ | |
aed13378 | 516 | count = SPECPDL_INDEX (); |
ede4db72 RS |
517 | specbind (Qinhibit_quit, Qt); |
518 | ||
b7826503 | 519 | CHECK_SYMBOL (target_type); |
ede4db72 | 520 | handler_fn = Fcdr (Fassq (target_type, Vselection_converter_alist)); |
4f06187f RS |
521 | /* gcpro is not needed here since nothing but HANDLER_FN |
522 | is live, and that ought to be a symbol. */ | |
523 | ||
1eb4d468 RS |
524 | if (!NILP (handler_fn)) |
525 | value = call3 (handler_fn, | |
5109c8dd | 526 | selection_symbol, (local_request ? Qnil : target_type), |
8e713be6 | 527 | XCAR (XCDR (local_value))); |
1eb4d468 RS |
528 | else |
529 | value = Qnil; | |
ede4db72 RS |
530 | unbind_to (count, Qnil); |
531 | } | |
532 | ||
533 | /* Make sure this value is of a type that we could transmit | |
534 | to another X client. */ | |
a87ed99c | 535 | |
ede4db72 RS |
536 | check = value; |
537 | if (CONSP (value) | |
8e713be6 KR |
538 | && SYMBOLP (XCAR (value))) |
539 | type = XCAR (value), | |
540 | check = XCDR (value); | |
1b65481e | 541 | |
ede4db72 RS |
542 | if (STRINGP (check) |
543 | || VECTORP (check) | |
544 | || SYMBOLP (check) | |
7da64e5c | 545 | || INTEGERP (check) |
ede4db72 RS |
546 | || NILP (value)) |
547 | return value; | |
a87ed99c | 548 | /* Check for a value that cons_to_long could handle. */ |
ede4db72 | 549 | else if (CONSP (check) |
8e713be6 KR |
550 | && INTEGERP (XCAR (check)) |
551 | && (INTEGERP (XCDR (check)) | |
ede4db72 | 552 | || |
8e713be6 KR |
553 | (CONSP (XCDR (check)) |
554 | && INTEGERP (XCAR (XCDR (check))) | |
555 | && NILP (XCDR (XCDR (check)))))) | |
ede4db72 RS |
556 | return value; |
557 | else | |
558 | return | |
559 | Fsignal (Qerror, | |
a87ed99c | 560 | Fcons (build_string ("invalid data returned by selection-conversion function"), |
ede4db72 RS |
561 | Fcons (handler_fn, Fcons (value, Qnil)))); |
562 | } | |
563 | \f | |
564 | /* Subroutines of x_reply_selection_request. */ | |
565 | ||
5d0ba25b | 566 | /* Send a SelectionNotify event to the requestor with property=None, |
ede4db72 RS |
567 | meaning we were unable to do what they wanted. */ |
568 | ||
569 | static void | |
570 | x_decline_selection_request (event) | |
571 | struct input_event *event; | |
572 | { | |
573 | XSelectionEvent reply; | |
1b65481e | 574 | |
ede4db72 RS |
575 | reply.type = SelectionNotify; |
576 | reply.display = SELECTION_EVENT_DISPLAY (event); | |
5d0ba25b | 577 | reply.requestor = SELECTION_EVENT_REQUESTOR (event); |
ede4db72 RS |
578 | reply.selection = SELECTION_EVENT_SELECTION (event); |
579 | reply.time = SELECTION_EVENT_TIME (event); | |
580 | reply.target = SELECTION_EVENT_TARGET (event); | |
581 | reply.property = None; | |
582 | ||
d9c0d4a3 GM |
583 | /* The reason for the error may be that the receiver has |
584 | died in the meantime. Handle that case. */ | |
ede4db72 | 585 | BLOCK_INPUT; |
9ba8e10d | 586 | x_catch_errors (reply.display); |
d9c0d4a3 | 587 | XSendEvent (reply.display, reply.requestor, False, 0L, (XEvent *) &reply); |
5c3a351a | 588 | XFlush (reply.display); |
4545fa20 | 589 | x_uncatch_errors (); |
ede4db72 RS |
590 | UNBLOCK_INPUT; |
591 | } | |
592 | ||
593 | /* This is the selection request currently being processed. | |
594 | It is set to zero when the request is fully processed. */ | |
595 | static struct input_event *x_selection_current_request; | |
596 | ||
ca29f2b8 GM |
597 | /* Display info in x_selection_request. */ |
598 | ||
599 | static struct x_display_info *selection_request_dpyinfo; | |
600 | ||
ede4db72 | 601 | /* Used as an unwind-protect clause so that, if a selection-converter signals |
2a1a4c9d | 602 | an error, we tell the requester that we were unable to do what they wanted |
ede4db72 RS |
603 | before we throw to top-level or go into the debugger or whatever. */ |
604 | ||
605 | static Lisp_Object | |
606 | x_selection_request_lisp_error (ignore) | |
607 | Lisp_Object ignore; | |
608 | { | |
ca29f2b8 GM |
609 | if (x_selection_current_request != 0 |
610 | && selection_request_dpyinfo->display) | |
ede4db72 RS |
611 | x_decline_selection_request (x_selection_current_request); |
612 | return Qnil; | |
613 | } | |
614 | \f | |
d1f21a66 RS |
615 | |
616 | /* This stuff is so that INCR selections are reentrant (that is, so we can | |
617 | be servicing multiple INCR selection requests simultaneously.) I haven't | |
618 | actually tested that yet. */ | |
619 | ||
620 | /* Keep a list of the property changes that are awaited. */ | |
621 | ||
622 | struct prop_location | |
623 | { | |
624 | int identifier; | |
625 | Display *display; | |
626 | Window window; | |
627 | Atom property; | |
628 | int desired_state; | |
629 | int arrived; | |
630 | struct prop_location *next; | |
631 | }; | |
632 | ||
633 | static struct prop_location *expect_property_change (); | |
634 | static void wait_for_property_change (); | |
635 | static void unexpect_property_change (); | |
636 | static int waiting_for_other_props_on_window (); | |
637 | ||
638 | static int prop_location_identifier; | |
639 | ||
640 | static Lisp_Object property_change_reply; | |
641 | ||
642 | static struct prop_location *property_change_reply_object; | |
643 | ||
644 | static struct prop_location *property_change_wait_list; | |
55b2d45d RS |
645 | |
646 | static Lisp_Object | |
dd0fe424 KS |
647 | queue_selection_requests_unwind (tem) |
648 | Lisp_Object tem; | |
55b2d45d | 649 | { |
dd0fe424 | 650 | x_stop_queuing_selection_requests (); |
ab552306 | 651 | return Qnil; |
55b2d45d RS |
652 | } |
653 | ||
654 | /* Return some frame whose display info is DPYINFO. | |
655 | Return nil if there is none. */ | |
656 | ||
657 | static Lisp_Object | |
658 | some_frame_on_display (dpyinfo) | |
659 | struct x_display_info *dpyinfo; | |
660 | { | |
661 | Lisp_Object list, frame; | |
662 | ||
663 | FOR_EACH_FRAME (list, frame) | |
664 | { | |
665 | if (FRAME_X_DISPLAY_INFO (XFRAME (frame)) == dpyinfo) | |
666 | return frame; | |
667 | } | |
668 | ||
669 | return Qnil; | |
670 | } | |
d1f21a66 | 671 | \f |
ede4db72 RS |
672 | /* Send the reply to a selection request event EVENT. |
673 | TYPE is the type of selection data requested. | |
674 | DATA and SIZE describe the data to send, already converted. | |
675 | FORMAT is the unit-size (in bits) of the data to be transmitted. */ | |
676 | ||
677 | static void | |
678 | x_reply_selection_request (event, format, data, size, type) | |
679 | struct input_event *event; | |
680 | int format, size; | |
681 | unsigned char *data; | |
682 | Atom type; | |
683 | { | |
684 | XSelectionEvent reply; | |
685 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
5d0ba25b | 686 | Window window = SELECTION_EVENT_REQUESTOR (event); |
ede4db72 RS |
687 | int bytes_remaining; |
688 | int format_bytes = format/8; | |
689 | int max_bytes = SELECTION_QUANTUM (display); | |
5c3a351a | 690 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
9ba8e10d | 691 | int count = SPECPDL_INDEX (); |
ede4db72 RS |
692 | |
693 | if (max_bytes > MAX_SELECTION_QUANTUM) | |
694 | max_bytes = MAX_SELECTION_QUANTUM; | |
695 | ||
696 | reply.type = SelectionNotify; | |
697 | reply.display = display; | |
5d0ba25b | 698 | reply.requestor = window; |
ede4db72 RS |
699 | reply.selection = SELECTION_EVENT_SELECTION (event); |
700 | reply.time = SELECTION_EVENT_TIME (event); | |
701 | reply.target = SELECTION_EVENT_TARGET (event); | |
702 | reply.property = SELECTION_EVENT_PROPERTY (event); | |
703 | if (reply.property == None) | |
704 | reply.property = reply.target; | |
705 | ||
706 | /* #### XChangeProperty can generate BadAlloc, and we must handle it! */ | |
afe1529d | 707 | BLOCK_INPUT; |
9ba8e10d | 708 | x_catch_errors (display); |
ede4db72 | 709 | |
9c3ad9e1 JD |
710 | #ifdef TRACE_SELECTION |
711 | { | |
712 | static int cnt; | |
713 | char *sel = XGetAtomName (display, reply.selection); | |
714 | char *tgt = XGetAtomName (display, reply.target); | |
715 | TRACE3 ("%s, target %s (%d)", sel, tgt, ++cnt); | |
716 | if (sel) XFree (sel); | |
717 | if (tgt) XFree (tgt); | |
718 | } | |
719 | #endif /* TRACE_SELECTION */ | |
720 | ||
ede4db72 RS |
721 | /* Store the data on the requested property. |
722 | If the selection is large, only store the first N bytes of it. | |
723 | */ | |
724 | bytes_remaining = size * format_bytes; | |
725 | if (bytes_remaining <= max_bytes) | |
726 | { | |
727 | /* Send all the data at once, with minimal handshaking. */ | |
d9c0d4a3 | 728 | TRACE1 ("Sending all %d bytes", bytes_remaining); |
ede4db72 RS |
729 | XChangeProperty (display, window, reply.property, type, format, |
730 | PropModeReplace, data, size); | |
731 | /* At this point, the selection was successfully stored; ack it. */ | |
2f65feb6 | 732 | XSendEvent (display, window, False, 0L, (XEvent *) &reply); |
ede4db72 RS |
733 | } |
734 | else | |
735 | { | |
736 | /* Send an INCR selection. */ | |
d1f21a66 | 737 | struct prop_location *wait_object; |
afe1529d | 738 | int had_errors; |
55b2d45d | 739 | Lisp_Object frame; |
ede4db72 | 740 | |
55b2d45d RS |
741 | frame = some_frame_on_display (dpyinfo); |
742 | ||
743 | /* If the display no longer has frames, we can't expect | |
744 | to get many more selection requests from it, so don't | |
745 | bother trying to queue them. */ | |
746 | if (!NILP (frame)) | |
747 | { | |
dd0fe424 | 748 | x_start_queuing_selection_requests (); |
55b2d45d RS |
749 | |
750 | record_unwind_protect (queue_selection_requests_unwind, | |
dd0fe424 | 751 | Qnil); |
55b2d45d | 752 | } |
2f65feb6 | 753 | |
19126e11 | 754 | if (x_window_to_frame (dpyinfo, window)) /* #### debug */ |
606140dd | 755 | error ("Attempt to transfer an INCR to ourself!"); |
1b65481e | 756 | |
d9c0d4a3 GM |
757 | TRACE2 ("Start sending %d bytes incrementally (%s)", |
758 | bytes_remaining, XGetAtomName (display, reply.property)); | |
d1f21a66 RS |
759 | wait_object = expect_property_change (display, window, reply.property, |
760 | PropertyDelete); | |
ede4db72 | 761 | |
d9c0d4a3 GM |
762 | TRACE1 ("Set %s to number of bytes to send", |
763 | XGetAtomName (display, reply.property)); | |
e22cf39c JD |
764 | { |
765 | /* XChangeProperty expects an array of long even if long is more than | |
766 | 32 bits. */ | |
767 | long value[1]; | |
768 | ||
769 | value[0] = bytes_remaining; | |
770 | XChangeProperty (display, window, reply.property, dpyinfo->Xatom_INCR, | |
771 | 32, PropModeReplace, | |
772 | (unsigned char *) value, 1); | |
773 | } | |
774 | ||
ede4db72 | 775 | XSelectInput (display, window, PropertyChangeMask); |
1b65481e | 776 | |
ede4db72 | 777 | /* Tell 'em the INCR data is there... */ |
d9c0d4a3 | 778 | TRACE0 ("Send SelectionNotify event"); |
55b2d45d | 779 | XSendEvent (display, window, False, 0L, (XEvent *) &reply); |
5c3a351a | 780 | XFlush (display); |
afe1529d RS |
781 | |
782 | had_errors = x_had_errors_p (display); | |
2f65feb6 | 783 | UNBLOCK_INPUT; |
ede4db72 | 784 | |
2a1a4c9d | 785 | /* First, wait for the requester to ack by deleting the property. |
ede4db72 | 786 | This can run random lisp code (process handlers) or signal. */ |
afe1529d | 787 | if (! had_errors) |
d9c0d4a3 GM |
788 | { |
789 | TRACE1 ("Waiting for ACK (deletion of %s)", | |
790 | XGetAtomName (display, reply.property)); | |
791 | wait_for_property_change (wait_object); | |
792 | } | |
dd0fe424 KS |
793 | else |
794 | unexpect_property_change (wait_object); | |
ede4db72 | 795 | |
d9c0d4a3 | 796 | TRACE0 ("Got ACK"); |
ede4db72 RS |
797 | while (bytes_remaining) |
798 | { | |
e22cf39c JD |
799 | int i = ((bytes_remaining < max_bytes) |
800 | ? bytes_remaining | |
801 | : max_bytes); | |
2f65feb6 RS |
802 | |
803 | BLOCK_INPUT; | |
804 | ||
d1f21a66 RS |
805 | wait_object |
806 | = expect_property_change (display, window, reply.property, | |
807 | PropertyDelete); | |
d9c0d4a3 GM |
808 | |
809 | TRACE1 ("Sending increment of %d bytes", i); | |
810 | TRACE1 ("Set %s to increment data", | |
811 | XGetAtomName (display, reply.property)); | |
1b65481e | 812 | |
ede4db72 RS |
813 | /* Append the next chunk of data to the property. */ |
814 | XChangeProperty (display, window, reply.property, type, format, | |
815 | PropModeAppend, data, i / format_bytes); | |
816 | bytes_remaining -= i; | |
817 | data += i; | |
5c3a351a | 818 | XFlush (display); |
afe1529d | 819 | had_errors = x_had_errors_p (display); |
2f65feb6 | 820 | UNBLOCK_INPUT; |
ede4db72 | 821 | |
afe1529d RS |
822 | if (had_errors) |
823 | break; | |
824 | ||
2a1a4c9d | 825 | /* Now wait for the requester to ack this chunk by deleting the |
d9c0d4a3 GM |
826 | property. This can run random lisp code or signal. */ |
827 | TRACE1 ("Waiting for increment ACK (deletion of %s)", | |
828 | XGetAtomName (display, reply.property)); | |
d1f21a66 | 829 | wait_for_property_change (wait_object); |
ede4db72 | 830 | } |
1b65481e | 831 | |
d9c0d4a3 GM |
832 | /* Now write a zero-length chunk to the property to tell the |
833 | requester that we're done. */ | |
2f65feb6 | 834 | BLOCK_INPUT; |
ede4db72 RS |
835 | if (! waiting_for_other_props_on_window (display, window)) |
836 | XSelectInput (display, window, 0L); | |
837 | ||
d9c0d4a3 GM |
838 | TRACE1 ("Set %s to a 0-length chunk to indicate EOF", |
839 | XGetAtomName (display, reply.property)); | |
ede4db72 RS |
840 | XChangeProperty (display, window, reply.property, type, format, |
841 | PropModeReplace, data, 0); | |
d9c0d4a3 | 842 | TRACE0 ("Done sending incrementally"); |
ede4db72 | 843 | } |
afe1529d | 844 | |
ceabd272 | 845 | /* rms, 2003-01-03: I think I have fixed this bug. */ |
47a6ac17 GM |
846 | /* The window we're communicating with may have been deleted |
847 | in the meantime (that's a real situation from a bug report). | |
848 | In this case, there may be events in the event queue still | |
849 | refering to the deleted window, and we'll get a BadWindow error | |
850 | in XTread_socket when processing the events. I don't have | |
851 | an idea how to fix that. gerd, 2001-01-98. */ | |
844fc085 JD |
852 | /* 2004-09-10: XSync and UNBLOCK so that possible protocol errors are |
853 | delivered before uncatch errors. */ | |
854 | XSync (display, False); | |
afe1529d | 855 | UNBLOCK_INPUT; |
0608b1a0 JD |
856 | |
857 | /* GTK queues events in addition to the queue in Xlib. So we | |
858 | UNBLOCK to enter the event loop and get possible errors delivered, | |
859 | and then BLOCK again because x_uncatch_errors requires it. */ | |
860 | BLOCK_INPUT; | |
9ba8e10d CY |
861 | |
862 | unbind_to (count, Qnil); | |
4545fa20 | 863 | x_uncatch_errors (); |
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 | |
9ba8e10d | 1395 | x_catch_errors (display); |
1b65481e | 1396 | |
d9c0d4a3 GM |
1397 | TRACE2 ("Get selection %s, type %s", |
1398 | XGetAtomName (display, type_atom), | |
1399 | XGetAtomName (display, target_property)); | |
1400 | ||
ede4db72 | 1401 | XConvertSelection (display, selection_atom, type_atom, target_property, |
5d0ba25b | 1402 | requestor_window, requestor_time); |
5c3a351a | 1403 | XFlush (display); |
ede4db72 RS |
1404 | |
1405 | /* Prepare to block until the reply has been read. */ | |
5d0ba25b | 1406 | reading_selection_window = requestor_window; |
ede4db72 | 1407 | reading_which_selection = selection_atom; |
f3fbd155 | 1408 | XSETCAR (reading_selection_reply, Qnil); |
55b2d45d RS |
1409 | |
1410 | frame = some_frame_on_display (dpyinfo); | |
1411 | ||
9ba8e10d CY |
1412 | count = SPECPDL_INDEX (); |
1413 | ||
55b2d45d RS |
1414 | /* If the display no longer has frames, we can't expect |
1415 | to get many more selection requests from it, so don't | |
1416 | bother trying to queue them. */ | |
1417 | if (!NILP (frame)) | |
1418 | { | |
dd0fe424 | 1419 | x_start_queuing_selection_requests (); |
55b2d45d RS |
1420 | |
1421 | record_unwind_protect (queue_selection_requests_unwind, | |
dd0fe424 | 1422 | Qnil); |
55b2d45d | 1423 | } |
ede4db72 RS |
1424 | UNBLOCK_INPUT; |
1425 | ||
80da0190 RS |
1426 | /* This allows quits. Also, don't wait forever. */ |
1427 | secs = x_selection_timeout / 1000; | |
1428 | usecs = (x_selection_timeout % 1000) * 1000; | |
d9c0d4a3 | 1429 | TRACE1 (" Start waiting %d secs for SelectionNotify", secs); |
d64b707c KS |
1430 | wait_reading_process_output (secs, usecs, 0, 0, |
1431 | reading_selection_reply, NULL, 0); | |
d9c0d4a3 | 1432 | TRACE1 (" Got event = %d", !NILP (XCAR (reading_selection_reply))); |
ede4db72 | 1433 | |
7c6b2ea4 | 1434 | BLOCK_INPUT; |
9ba8e10d | 1435 | unbind_to (count, Qnil); |
a7b24d46 | 1436 | x_check_errors (display, "Cannot get selection: %s"); |
4545fa20 | 1437 | x_uncatch_errors (); |
7c6b2ea4 RS |
1438 | UNBLOCK_INPUT; |
1439 | ||
8e713be6 | 1440 | if (NILP (XCAR (reading_selection_reply))) |
606140dd | 1441 | error ("Timed out waiting for reply from selection owner"); |
8e713be6 | 1442 | if (EQ (XCAR (reading_selection_reply), Qlambda)) |
d5db4077 | 1443 | error ("No `%s' selection", SDATA (SYMBOL_NAME (selection_symbol))); |
ede4db72 RS |
1444 | |
1445 | /* Otherwise, the selection is waiting for us on the requested property. */ | |
1446 | return | |
5d0ba25b | 1447 | x_get_window_property_as_lisp_data (display, requestor_window, |
ede4db72 RS |
1448 | target_property, target_type, |
1449 | selection_atom); | |
1450 | } | |
1451 | \f | |
1452 | /* Subroutines of x_get_window_property_as_lisp_data */ | |
1453 | ||
4feb31b2 | 1454 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1455 | |
ede4db72 RS |
1456 | static void |
1457 | x_get_window_property (display, window, property, data_ret, bytes_ret, | |
1458 | actual_type_ret, actual_format_ret, actual_size_ret, | |
1459 | delete_p) | |
1460 | Display *display; | |
1461 | Window window; | |
1462 | Atom property; | |
1463 | unsigned char **data_ret; | |
1464 | int *bytes_ret; | |
1465 | Atom *actual_type_ret; | |
1466 | int *actual_format_ret; | |
1467 | unsigned long *actual_size_ret; | |
1468 | int delete_p; | |
1469 | { | |
1470 | int total_size; | |
1471 | unsigned long bytes_remaining; | |
1472 | int offset = 0; | |
1473 | unsigned char *tmp_data = 0; | |
1474 | int result; | |
1475 | int buffer_size = SELECTION_QUANTUM (display); | |
1b65481e | 1476 | |
d9c0d4a3 GM |
1477 | if (buffer_size > MAX_SELECTION_QUANTUM) |
1478 | buffer_size = MAX_SELECTION_QUANTUM; | |
1b65481e | 1479 | |
ede4db72 | 1480 | BLOCK_INPUT; |
1b65481e | 1481 | |
ede4db72 RS |
1482 | /* First probe the thing to find out how big it is. */ |
1483 | result = XGetWindowProperty (display, window, property, | |
137edb72 | 1484 | 0L, 0L, False, AnyPropertyType, |
ede4db72 RS |
1485 | actual_type_ret, actual_format_ret, |
1486 | actual_size_ret, | |
1487 | &bytes_remaining, &tmp_data); | |
ede4db72 RS |
1488 | if (result != Success) |
1489 | { | |
2f65feb6 | 1490 | UNBLOCK_INPUT; |
ede4db72 RS |
1491 | *data_ret = 0; |
1492 | *bytes_ret = 0; | |
1493 | return; | |
1494 | } | |
1b65481e | 1495 | |
0158abbc RS |
1496 | /* This was allocated by Xlib, so use XFree. */ |
1497 | XFree ((char *) tmp_data); | |
1b65481e | 1498 | |
ede4db72 RS |
1499 | if (*actual_type_ret == None || *actual_format_ret == 0) |
1500 | { | |
2f65feb6 | 1501 | UNBLOCK_INPUT; |
ede4db72 RS |
1502 | return; |
1503 | } | |
1504 | ||
1505 | total_size = bytes_remaining + 1; | |
1506 | *data_ret = (unsigned char *) xmalloc (total_size); | |
1b65481e | 1507 | |
2a1a4c9d | 1508 | /* Now read, until we've gotten it all. */ |
ede4db72 RS |
1509 | while (bytes_remaining) |
1510 | { | |
d9c0d4a3 | 1511 | #ifdef TRACE_SELECTION |
ede4db72 RS |
1512 | int last = bytes_remaining; |
1513 | #endif | |
1514 | result | |
1515 | = XGetWindowProperty (display, window, property, | |
137edb72 | 1516 | (long)offset/4, (long)buffer_size/4, |
2f65feb6 | 1517 | False, |
ede4db72 RS |
1518 | AnyPropertyType, |
1519 | actual_type_ret, actual_format_ret, | |
1520 | actual_size_ret, &bytes_remaining, &tmp_data); | |
d9c0d4a3 GM |
1521 | |
1522 | TRACE2 ("Read %ld bytes from property %s", | |
1523 | last - bytes_remaining, | |
1524 | XGetAtomName (display, property)); | |
1525 | ||
ede4db72 RS |
1526 | /* If this doesn't return Success at this point, it means that |
1527 | some clod deleted the selection while we were in the midst of | |
d9c0d4a3 GM |
1528 | reading it. Deal with that, I guess.... */ |
1529 | if (result != Success) | |
1530 | break; | |
e22cf39c JD |
1531 | |
1532 | /* The man page for XGetWindowProperty says: | |
1533 | "If the returned format is 32, the returned data is represented | |
1534 | as a long array and should be cast to that type to obtain the | |
1535 | elements." | |
1536 | This applies even if long is more than 32 bits, the X library | |
1537 | converts from 32 bit elements received from the X server to long | |
1538 | and passes the long array to us. Thus, for that case bcopy can not | |
1539 | be used. We convert to a 32 bit type here, because so much code | |
1540 | assume on that. | |
1541 | ||
1542 | The bytes and offsets passed to XGetWindowProperty refers to the | |
1543 | property and those are indeed in 32 bit quantities if format is 32. */ | |
1544 | ||
1545 | if (*actual_format_ret == 32 && *actual_format_ret < BITS_PER_LONG) | |
1546 | { | |
1547 | unsigned long i; | |
1548 | int *idata = (int *) ((*data_ret) + offset); | |
1549 | long *ldata = (long *) tmp_data; | |
1550 | ||
1551 | for (i = 0; i < *actual_size_ret; ++i) | |
1552 | { | |
1553 | idata[i]= (int) ldata[i]; | |
1554 | offset += 4; | |
1555 | } | |
1556 | } | |
1557 | else | |
1558 | { | |
1559 | *actual_size_ret *= *actual_format_ret / 8; | |
1560 | bcopy (tmp_data, (*data_ret) + offset, *actual_size_ret); | |
1561 | offset += *actual_size_ret; | |
1562 | } | |
1b65481e | 1563 | |
0158abbc RS |
1564 | /* This was allocated by Xlib, so use XFree. */ |
1565 | XFree ((char *) tmp_data); | |
ede4db72 | 1566 | } |
2f65feb6 | 1567 | |
5c3a351a | 1568 | XFlush (display); |
ede4db72 RS |
1569 | UNBLOCK_INPUT; |
1570 | *bytes_ret = offset; | |
1571 | } | |
1572 | \f | |
4feb31b2 | 1573 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1574 | |
ede4db72 RS |
1575 | static void |
1576 | receive_incremental_selection (display, window, property, target_type, | |
1577 | min_size_bytes, data_ret, size_bytes_ret, | |
1578 | type_ret, format_ret, size_ret) | |
1579 | Display *display; | |
1580 | Window window; | |
1581 | Atom property; | |
1582 | Lisp_Object target_type; /* for error messages only */ | |
1583 | unsigned int min_size_bytes; | |
1584 | unsigned char **data_ret; | |
1585 | int *size_bytes_ret; | |
1586 | Atom *type_ret; | |
1587 | unsigned long *size_ret; | |
1588 | int *format_ret; | |
1589 | { | |
1590 | int offset = 0; | |
d1f21a66 | 1591 | struct prop_location *wait_object; |
ede4db72 RS |
1592 | *size_bytes_ret = min_size_bytes; |
1593 | *data_ret = (unsigned char *) xmalloc (*size_bytes_ret); | |
d9c0d4a3 GM |
1594 | |
1595 | TRACE1 ("Read %d bytes incrementally", min_size_bytes); | |
2f65feb6 RS |
1596 | |
1597 | /* At this point, we have read an INCR property. | |
1598 | Delete the property to ack it. | |
1599 | (But first, prepare to receive the next event in this handshake.) | |
ede4db72 RS |
1600 | |
1601 | Now, we must loop, waiting for the sending window to put a value on | |
1602 | that property, then reading the property, then deleting it to ack. | |
1603 | We are done when the sender places a property of length 0. | |
1604 | */ | |
2f65feb6 RS |
1605 | BLOCK_INPUT; |
1606 | XSelectInput (display, window, STANDARD_EVENT_SET | PropertyChangeMask); | |
d9c0d4a3 | 1607 | TRACE1 (" Delete property %s", |
dd0fe424 | 1608 | SDATA (SYMBOL_NAME (x_atom_to_symbol (display, property)))); |
2f65feb6 | 1609 | XDeleteProperty (display, window, property); |
d9c0d4a3 | 1610 | TRACE1 (" Expect new value of property %s", |
dd0fe424 | 1611 | SDATA (SYMBOL_NAME (x_atom_to_symbol (display, property)))); |
d1f21a66 RS |
1612 | wait_object = expect_property_change (display, window, property, |
1613 | PropertyNewValue); | |
5c3a351a | 1614 | XFlush (display); |
2f65feb6 RS |
1615 | UNBLOCK_INPUT; |
1616 | ||
ede4db72 RS |
1617 | while (1) |
1618 | { | |
1619 | unsigned char *tmp_data; | |
1620 | int tmp_size_bytes; | |
d9c0d4a3 GM |
1621 | |
1622 | TRACE0 (" Wait for property change"); | |
d1f21a66 | 1623 | wait_for_property_change (wait_object); |
1b65481e | 1624 | |
ede4db72 | 1625 | /* expect it again immediately, because x_get_window_property may |
2a1a4c9d | 1626 | .. no it won't, I don't get it. |
d9c0d4a3 GM |
1627 | .. Ok, I get it now, the Xt code that implements INCR is broken. */ |
1628 | TRACE0 (" Get property value"); | |
ede4db72 RS |
1629 | x_get_window_property (display, window, property, |
1630 | &tmp_data, &tmp_size_bytes, | |
1631 | type_ret, format_ret, size_ret, 1); | |
1632 | ||
d9c0d4a3 GM |
1633 | TRACE1 (" Read increment of %d bytes", tmp_size_bytes); |
1634 | ||
ede4db72 RS |
1635 | if (tmp_size_bytes == 0) /* we're done */ |
1636 | { | |
d9c0d4a3 GM |
1637 | TRACE0 ("Done reading incrementally"); |
1638 | ||
2f65feb6 RS |
1639 | if (! waiting_for_other_props_on_window (display, window)) |
1640 | XSelectInput (display, window, STANDARD_EVENT_SET); | |
4feb31b2 | 1641 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1642 | calls xmalloc itself. */ |
4feb31b2 | 1643 | if (tmp_data) xfree (tmp_data); |
ede4db72 RS |
1644 | break; |
1645 | } | |
2f65feb6 RS |
1646 | |
1647 | BLOCK_INPUT; | |
d9c0d4a3 GM |
1648 | TRACE1 (" ACK by deleting property %s", |
1649 | XGetAtomName (display, property)); | |
2f65feb6 | 1650 | XDeleteProperty (display, window, property); |
d1f21a66 RS |
1651 | wait_object = expect_property_change (display, window, property, |
1652 | PropertyNewValue); | |
5c3a351a | 1653 | XFlush (display); |
2f65feb6 RS |
1654 | UNBLOCK_INPUT; |
1655 | ||
ede4db72 RS |
1656 | if (*size_bytes_ret < offset + tmp_size_bytes) |
1657 | { | |
ede4db72 RS |
1658 | *size_bytes_ret = offset + tmp_size_bytes; |
1659 | *data_ret = (unsigned char *) xrealloc (*data_ret, *size_bytes_ret); | |
1660 | } | |
1b65481e | 1661 | |
018cfa07 | 1662 | bcopy (tmp_data, (*data_ret) + offset, tmp_size_bytes); |
ede4db72 | 1663 | offset += tmp_size_bytes; |
1b65481e | 1664 | |
4feb31b2 | 1665 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1666 | calls xmalloc itself. */ |
4feb31b2 | 1667 | xfree (tmp_data); |
ede4db72 RS |
1668 | } |
1669 | } | |
d9c0d4a3 | 1670 | |
ede4db72 RS |
1671 | \f |
1672 | /* Once a requested selection is "ready" (we got a SelectionNotify event), | |
1673 | fetch value from property PROPERTY of X window WINDOW on display DISPLAY. | |
1674 | TARGET_TYPE and SELECTION_ATOM are used in error message if this fails. */ | |
1675 | ||
1676 | static Lisp_Object | |
1677 | x_get_window_property_as_lisp_data (display, window, property, target_type, | |
1678 | selection_atom) | |
1679 | Display *display; | |
1680 | Window window; | |
1681 | Atom property; | |
1682 | Lisp_Object target_type; /* for error messages only */ | |
1683 | Atom selection_atom; /* for error messages only */ | |
1684 | { | |
1685 | Atom actual_type; | |
1686 | int actual_format; | |
1687 | unsigned long actual_size; | |
1688 | unsigned char *data = 0; | |
1689 | int bytes = 0; | |
1690 | Lisp_Object val; | |
5c3a351a | 1691 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 | 1692 | |
d9c0d4a3 GM |
1693 | TRACE0 ("Reading selection data"); |
1694 | ||
ede4db72 RS |
1695 | x_get_window_property (display, window, property, &data, &bytes, |
1696 | &actual_type, &actual_format, &actual_size, 1); | |
1697 | if (! data) | |
1698 | { | |
1699 | int there_is_a_selection_owner; | |
1700 | BLOCK_INPUT; | |
1701 | there_is_a_selection_owner | |
1702 | = XGetSelectionOwner (display, selection_atom); | |
1703 | UNBLOCK_INPUT; | |
5a499696 RS |
1704 | Fsignal (Qerror, |
1705 | there_is_a_selection_owner | |
1706 | ? Fcons (build_string ("selection owner couldn't convert"), | |
ede4db72 RS |
1707 | actual_type |
1708 | ? Fcons (target_type, | |
d9c0d4a3 | 1709 | Fcons (x_atom_to_symbol (display, |
5c3a351a | 1710 | actual_type), |
ede4db72 RS |
1711 | Qnil)) |
1712 | : Fcons (target_type, Qnil)) | |
5a499696 | 1713 | : Fcons (build_string ("no selection"), |
d9c0d4a3 | 1714 | Fcons (x_atom_to_symbol (display, |
5a499696 RS |
1715 | selection_atom), |
1716 | Qnil))); | |
ede4db72 | 1717 | } |
1b65481e | 1718 | |
5c3a351a | 1719 | if (actual_type == dpyinfo->Xatom_INCR) |
ede4db72 RS |
1720 | { |
1721 | /* That wasn't really the data, just the beginning. */ | |
1722 | ||
1723 | unsigned int min_size_bytes = * ((unsigned int *) data); | |
1724 | BLOCK_INPUT; | |
4feb31b2 | 1725 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1726 | calls xmalloc itself. */ |
4feb31b2 | 1727 | xfree ((char *) data); |
ede4db72 RS |
1728 | UNBLOCK_INPUT; |
1729 | receive_incremental_selection (display, window, property, target_type, | |
1730 | min_size_bytes, &data, &bytes, | |
1731 | &actual_type, &actual_format, | |
1732 | &actual_size); | |
1733 | } | |
1734 | ||
2f65feb6 | 1735 | BLOCK_INPUT; |
d9c0d4a3 | 1736 | TRACE1 (" Delete property %s", XGetAtomName (display, property)); |
2f65feb6 | 1737 | XDeleteProperty (display, window, property); |
5c3a351a | 1738 | XFlush (display); |
2f65feb6 RS |
1739 | UNBLOCK_INPUT; |
1740 | ||
ede4db72 RS |
1741 | /* It's been read. Now convert it to a lisp object in some semi-rational |
1742 | manner. */ | |
1743 | val = selection_data_to_lisp_data (display, data, bytes, | |
1744 | actual_type, actual_format); | |
1b65481e | 1745 | |
4feb31b2 | 1746 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1747 | calls xmalloc itself. */ |
4feb31b2 | 1748 | xfree ((char *) data); |
ede4db72 RS |
1749 | return val; |
1750 | } | |
1751 | \f | |
1752 | /* These functions convert from the selection data read from the server into | |
1753 | something that we can use from Lisp, and vice versa. | |
1754 | ||
1755 | Type: Format: Size: Lisp Type: | |
1756 | ----- ------- ----- ----------- | |
1757 | * 8 * String | |
1758 | ATOM 32 1 Symbol | |
1759 | ATOM 32 > 1 Vector of Symbols | |
1760 | * 16 1 Integer | |
1761 | * 16 > 1 Vector of Integers | |
1762 | * 32 1 if <=16 bits: Integer | |
1763 | if > 16 bits: Cons of top16, bot16 | |
1764 | * 32 > 1 Vector of the above | |
1765 | ||
1766 | When converting a Lisp number to C, it is assumed to be of format 16 if | |
1767 | it is an integer, and of format 32 if it is a cons of two integers. | |
1768 | ||
1769 | When converting a vector of numbers from Lisp to C, it is assumed to be | |
1770 | of format 16 if every element in the vector is an integer, and is assumed | |
1771 | to be of format 32 if any element is a cons of two integers. | |
1772 | ||
1773 | When converting an object to C, it may be of the form (SYMBOL . <data>) | |
1774 | where SYMBOL is what we should claim that the type is. Format and | |
b8d6f4af JD |
1775 | representation are as above. |
1776 | ||
1777 | Important: When format is 32, data should contain an array of int, | |
1778 | not an array of long as the X library returns. This makes a difference | |
1779 | when sizeof(long) != sizeof(int). */ | |
ede4db72 RS |
1780 | |
1781 | ||
1782 | ||
1783 | static Lisp_Object | |
1784 | selection_data_to_lisp_data (display, data, size, type, format) | |
1785 | Display *display; | |
1786 | unsigned char *data; | |
1787 | Atom type; | |
1788 | int size, format; | |
1789 | { | |
5c3a351a | 1790 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 | 1791 | |
5c3a351a | 1792 | if (type == dpyinfo->Xatom_NULL) |
ede4db72 RS |
1793 | return QNULL; |
1794 | ||
1795 | /* Convert any 8-bit data to a string, for compactness. */ | |
1796 | else if (format == 8) | |
e6c7c988 | 1797 | { |
e57ad4d8 KH |
1798 | Lisp_Object str, lispy_type; |
1799 | ||
1800 | str = make_unibyte_string ((char *) data, size); | |
1801 | /* Indicate that this string is from foreign selection by a text | |
1802 | property `foreign-selection' so that the caller of | |
1803 | x-get-selection-internal (usually x-get-selection) can know | |
1804 | that the string must be decode. */ | |
1805 | if (type == dpyinfo->Xatom_COMPOUND_TEXT) | |
1806 | lispy_type = QCOMPOUND_TEXT; | |
1807 | else if (type == dpyinfo->Xatom_UTF8_STRING) | |
1808 | lispy_type = QUTF8_STRING; | |
e6c7c988 | 1809 | else |
e57ad4d8 KH |
1810 | lispy_type = QSTRING; |
1811 | Fput_text_property (make_number (0), make_number (size), | |
1812 | Qforeign_selection, lispy_type, str); | |
e6c7c988 KH |
1813 | return str; |
1814 | } | |
ede4db72 RS |
1815 | /* Convert a single atom to a Lisp_Symbol. Convert a set of atoms to |
1816 | a vector of symbols. | |
1817 | */ | |
1818 | else if (type == XA_ATOM) | |
1819 | { | |
1820 | int i; | |
b8d6f4af JD |
1821 | /* On a 64 bit machine sizeof(Atom) == sizeof(long) == 8. |
1822 | But the callers of these function has made sure the data for | |
1823 | format == 32 is an array of int. Thus, use int instead | |
1824 | of Atom. */ | |
1825 | int *idata = (int *) data; | |
1826 | ||
1827 | if (size == sizeof (int)) | |
1828 | return x_atom_to_symbol (display, (Atom) idata[0]); | |
ede4db72 RS |
1829 | else |
1830 | { | |
b8d6f4af | 1831 | Lisp_Object v = Fmake_vector (make_number (size / sizeof (int)), |
e607a484 | 1832 | make_number (0)); |
b8d6f4af | 1833 | for (i = 0; i < size / sizeof (int); i++) |
e607a484 | 1834 | Faset (v, make_number (i), |
b8d6f4af | 1835 | x_atom_to_symbol (display, (Atom) idata[i])); |
ede4db72 RS |
1836 | return v; |
1837 | } | |
1838 | } | |
1839 | ||
1840 | /* Convert a single 16 or small 32 bit number to a Lisp_Int. | |
1841 | If the number is > 16 bits, convert it to a cons of integers, | |
1842 | 16 bits in each half. | |
1843 | */ | |
2f51feb8 AS |
1844 | else if (format == 32 && size == sizeof (int)) |
1845 | return long_to_cons (((unsigned int *) data) [0]); | |
ede4db72 RS |
1846 | else if (format == 16 && size == sizeof (short)) |
1847 | return make_number ((int) (((unsigned short *) data) [0])); | |
1848 | ||
1849 | /* Convert any other kind of data to a vector of numbers, represented | |
1850 | as above (as an integer, or a cons of two 16 bit integers.) | |
1851 | */ | |
1852 | else if (format == 16) | |
1853 | { | |
1854 | int i; | |
937a3875 RS |
1855 | Lisp_Object v; |
1856 | v = Fmake_vector (make_number (size / 2), make_number (0)); | |
1857 | for (i = 0; i < size / 2; i++) | |
ede4db72 RS |
1858 | { |
1859 | int j = (int) ((unsigned short *) data) [i]; | |
e607a484 | 1860 | Faset (v, make_number (i), make_number (j)); |
ede4db72 RS |
1861 | } |
1862 | return v; | |
1863 | } | |
1864 | else | |
1865 | { | |
1866 | int i; | |
e607a484 | 1867 | Lisp_Object v = Fmake_vector (make_number (size / 4), make_number (0)); |
ede4db72 RS |
1868 | for (i = 0; i < size / 4; i++) |
1869 | { | |
2f51feb8 | 1870 | unsigned int j = ((unsigned int *) data) [i]; |
e607a484 | 1871 | Faset (v, make_number (i), long_to_cons (j)); |
ede4db72 RS |
1872 | } |
1873 | return v; | |
1874 | } | |
1875 | } | |
1876 | ||
1877 | ||
4feb31b2 | 1878 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1879 | |
ede4db72 RS |
1880 | static void |
1881 | lisp_data_to_selection_data (display, obj, | |
aca39f42 RS |
1882 | data_ret, type_ret, size_ret, |
1883 | format_ret, nofree_ret) | |
ede4db72 RS |
1884 | Display *display; |
1885 | Lisp_Object obj; | |
1886 | unsigned char **data_ret; | |
1887 | Atom *type_ret; | |
1888 | unsigned int *size_ret; | |
1889 | int *format_ret; | |
aca39f42 | 1890 | int *nofree_ret; |
ede4db72 RS |
1891 | { |
1892 | Lisp_Object type = Qnil; | |
5c3a351a | 1893 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
aca39f42 RS |
1894 | |
1895 | *nofree_ret = 0; | |
1896 | ||
8e713be6 | 1897 | if (CONSP (obj) && SYMBOLP (XCAR (obj))) |
ede4db72 | 1898 | { |
8e713be6 KR |
1899 | type = XCAR (obj); |
1900 | obj = XCDR (obj); | |
1901 | if (CONSP (obj) && NILP (XCDR (obj))) | |
1902 | obj = XCAR (obj); | |
ede4db72 RS |
1903 | } |
1904 | ||
1905 | if (EQ (obj, QNULL) || (EQ (type, QNULL))) | |
1906 | { /* This is not the same as declining */ | |
1907 | *format_ret = 32; | |
1908 | *size_ret = 0; | |
1909 | *data_ret = 0; | |
1910 | type = QNULL; | |
1911 | } | |
1912 | else if (STRINGP (obj)) | |
1913 | { | |
1bd70c6e KH |
1914 | if (SCHARS (obj) < SBYTES (obj)) |
1915 | /* OBJ is a multibyte string containing a non-ASCII char. */ | |
1916 | Fsignal (Qerror, /* Qselection_error */ | |
1917 | Fcons (build_string | |
1918 | ("Non-ASCII string must be encoded in advance"), | |
1919 | Fcons (obj, Qnil))); | |
7b9ae523 | 1920 | if (NILP (type)) |
5109c8dd KH |
1921 | type = QSTRING; |
1922 | *format_ret = 8; | |
1923 | *size_ret = SBYTES (obj); | |
1924 | *data_ret = SDATA (obj); | |
1925 | *nofree_ret = 1; | |
ede4db72 RS |
1926 | } |
1927 | else if (SYMBOLP (obj)) | |
1928 | { | |
1929 | *format_ret = 32; | |
1930 | *size_ret = 1; | |
1931 | *data_ret = (unsigned char *) xmalloc (sizeof (Atom) + 1); | |
1932 | (*data_ret) [sizeof (Atom)] = 0; | |
5c3a351a | 1933 | (*(Atom **) data_ret) [0] = symbol_to_x_atom (dpyinfo, display, obj); |
ede4db72 RS |
1934 | if (NILP (type)) type = QATOM; |
1935 | } | |
7da64e5c | 1936 | else if (INTEGERP (obj) |
ede4db72 RS |
1937 | && XINT (obj) < 0xFFFF |
1938 | && XINT (obj) > -0xFFFF) | |
1939 | { | |
1940 | *format_ret = 16; | |
1941 | *size_ret = 1; | |
1942 | *data_ret = (unsigned char *) xmalloc (sizeof (short) + 1); | |
1943 | (*data_ret) [sizeof (short)] = 0; | |
1944 | (*(short **) data_ret) [0] = (short) XINT (obj); | |
1945 | if (NILP (type)) type = QINTEGER; | |
1946 | } | |
a87ed99c | 1947 | else if (INTEGERP (obj) |
8e713be6 KR |
1948 | || (CONSP (obj) && INTEGERP (XCAR (obj)) |
1949 | && (INTEGERP (XCDR (obj)) | |
1950 | || (CONSP (XCDR (obj)) | |
1951 | && INTEGERP (XCAR (XCDR (obj))))))) | |
ede4db72 RS |
1952 | { |
1953 | *format_ret = 32; | |
1954 | *size_ret = 1; | |
1955 | *data_ret = (unsigned char *) xmalloc (sizeof (long) + 1); | |
1956 | (*data_ret) [sizeof (long)] = 0; | |
1957 | (*(unsigned long **) data_ret) [0] = cons_to_long (obj); | |
1958 | if (NILP (type)) type = QINTEGER; | |
1959 | } | |
1960 | else if (VECTORP (obj)) | |
1961 | { | |
1962 | /* Lisp_Vectors may represent a set of ATOMs; | |
1963 | a set of 16 or 32 bit INTEGERs; | |
1964 | or a set of ATOM_PAIRs (represented as [[A1 A2] [A3 A4] ...] | |
1965 | */ | |
1966 | int i; | |
1967 | ||
1968 | if (SYMBOLP (XVECTOR (obj)->contents [0])) | |
1969 | /* This vector is an ATOM set */ | |
1970 | { | |
1971 | if (NILP (type)) type = QATOM; | |
1972 | *size_ret = XVECTOR (obj)->size; | |
1973 | *format_ret = 32; | |
1974 | *data_ret = (unsigned char *) xmalloc ((*size_ret) * sizeof (Atom)); | |
1975 | for (i = 0; i < *size_ret; i++) | |
1976 | if (SYMBOLP (XVECTOR (obj)->contents [i])) | |
1977 | (*(Atom **) data_ret) [i] | |
5c3a351a | 1978 | = symbol_to_x_atom (dpyinfo, display, XVECTOR (obj)->contents [i]); |
ede4db72 RS |
1979 | else |
1980 | Fsignal (Qerror, /* Qselection_error */ | |
1981 | Fcons (build_string | |
1982 | ("all elements of selection vector must have same type"), | |
1983 | Fcons (obj, Qnil))); | |
1984 | } | |
1985 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1986 | else if (VECTORP (XVECTOR (obj)->contents [0])) | |
1987 | /* This vector is an ATOM_PAIR set */ | |
1988 | { | |
1989 | if (NILP (type)) type = QATOM_PAIR; | |
1990 | *size_ret = XVECTOR (obj)->size; | |
1991 | *format_ret = 32; | |
1992 | *data_ret = (unsigned char *) | |
1993 | xmalloc ((*size_ret) * sizeof (Atom) * 2); | |
1994 | for (i = 0; i < *size_ret; i++) | |
1995 | if (VECTORP (XVECTOR (obj)->contents [i])) | |
1996 | { | |
1997 | Lisp_Object pair = XVECTOR (obj)->contents [i]; | |
1998 | if (XVECTOR (pair)->size != 2) | |
1999 | Fsignal (Qerror, | |
1b65481e | 2000 | Fcons (build_string |
ede4db72 RS |
2001 | ("elements of the vector must be vectors of exactly two elements"), |
2002 | Fcons (pair, Qnil))); | |
1b65481e | 2003 | |
ede4db72 | 2004 | (*(Atom **) data_ret) [i * 2] |
5c3a351a RS |
2005 | = symbol_to_x_atom (dpyinfo, display, |
2006 | XVECTOR (pair)->contents [0]); | |
ede4db72 | 2007 | (*(Atom **) data_ret) [(i * 2) + 1] |
5c3a351a RS |
2008 | = symbol_to_x_atom (dpyinfo, display, |
2009 | XVECTOR (pair)->contents [1]); | |
ede4db72 RS |
2010 | } |
2011 | else | |
2012 | Fsignal (Qerror, | |
2013 | Fcons (build_string | |
2014 | ("all elements of the vector must be of the same type"), | |
2015 | Fcons (obj, Qnil))); | |
1b65481e | 2016 | |
ede4db72 RS |
2017 | } |
2018 | #endif | |
2019 | else | |
2020 | /* This vector is an INTEGER set, or something like it */ | |
2021 | { | |
e22cf39c | 2022 | int data_size = 2; |
ede4db72 RS |
2023 | *size_ret = XVECTOR (obj)->size; |
2024 | if (NILP (type)) type = QINTEGER; | |
2025 | *format_ret = 16; | |
2026 | for (i = 0; i < *size_ret; i++) | |
2027 | if (CONSP (XVECTOR (obj)->contents [i])) | |
2028 | *format_ret = 32; | |
7da64e5c | 2029 | else if (!INTEGERP (XVECTOR (obj)->contents [i])) |
ede4db72 RS |
2030 | Fsignal (Qerror, /* Qselection_error */ |
2031 | Fcons (build_string | |
2032 | ("elements of selection vector must be integers or conses of integers"), | |
2033 | Fcons (obj, Qnil))); | |
2034 | ||
e22cf39c JD |
2035 | /* Use sizeof(long) even if it is more than 32 bits. See comment |
2036 | in x_get_window_property and x_fill_property_data. */ | |
6e816df5 | 2037 | |
e22cf39c JD |
2038 | if (*format_ret == 32) data_size = sizeof(long); |
2039 | *data_ret = (unsigned char *) xmalloc (*size_ret * data_size); | |
ede4db72 RS |
2040 | for (i = 0; i < *size_ret; i++) |
2041 | if (*format_ret == 32) | |
2042 | (*((unsigned long **) data_ret)) [i] | |
2043 | = cons_to_long (XVECTOR (obj)->contents [i]); | |
2044 | else | |
2045 | (*((unsigned short **) data_ret)) [i] | |
2046 | = (unsigned short) cons_to_long (XVECTOR (obj)->contents [i]); | |
2047 | } | |
2048 | } | |
2049 | else | |
2050 | Fsignal (Qerror, /* Qselection_error */ | |
6e816df5 | 2051 | Fcons (build_string ("unrecognized selection data"), |
ede4db72 RS |
2052 | Fcons (obj, Qnil))); |
2053 | ||
5c3a351a | 2054 | *type_ret = symbol_to_x_atom (dpyinfo, display, type); |
ede4db72 RS |
2055 | } |
2056 | ||
2057 | static Lisp_Object | |
2058 | clean_local_selection_data (obj) | |
2059 | Lisp_Object obj; | |
2060 | { | |
2061 | if (CONSP (obj) | |
8e713be6 KR |
2062 | && INTEGERP (XCAR (obj)) |
2063 | && CONSP (XCDR (obj)) | |
2064 | && INTEGERP (XCAR (XCDR (obj))) | |
2065 | && NILP (XCDR (XCDR (obj)))) | |
2066 | obj = Fcons (XCAR (obj), XCDR (obj)); | |
ede4db72 RS |
2067 | |
2068 | if (CONSP (obj) | |
8e713be6 KR |
2069 | && INTEGERP (XCAR (obj)) |
2070 | && INTEGERP (XCDR (obj))) | |
ede4db72 | 2071 | { |
8e713be6 KR |
2072 | if (XINT (XCAR (obj)) == 0) |
2073 | return XCDR (obj); | |
2074 | if (XINT (XCAR (obj)) == -1) | |
2075 | return make_number (- XINT (XCDR (obj))); | |
ede4db72 RS |
2076 | } |
2077 | if (VECTORP (obj)) | |
2078 | { | |
2079 | int i; | |
2080 | int size = XVECTOR (obj)->size; | |
2081 | Lisp_Object copy; | |
2082 | if (size == 1) | |
2083 | return clean_local_selection_data (XVECTOR (obj)->contents [0]); | |
e607a484 | 2084 | copy = Fmake_vector (make_number (size), Qnil); |
ede4db72 RS |
2085 | for (i = 0; i < size; i++) |
2086 | XVECTOR (copy)->contents [i] | |
2087 | = clean_local_selection_data (XVECTOR (obj)->contents [i]); | |
2088 | return copy; | |
2089 | } | |
2090 | return obj; | |
2091 | } | |
2092 | \f | |
2093 | /* Called from XTread_socket to handle SelectionNotify events. | |
606140dd KH |
2094 | If it's the selection we are waiting for, stop waiting |
2095 | by setting the car of reading_selection_reply to non-nil. | |
2096 | We store t there if the reply is successful, lambda if not. */ | |
ede4db72 RS |
2097 | |
2098 | void | |
2099 | x_handle_selection_notify (event) | |
2100 | XSelectionEvent *event; | |
2101 | { | |
5d0ba25b | 2102 | if (event->requestor != reading_selection_window) |
ede4db72 RS |
2103 | return; |
2104 | if (event->selection != reading_which_selection) | |
2105 | return; | |
2106 | ||
d9c0d4a3 | 2107 | TRACE0 ("Received SelectionNotify"); |
f3fbd155 KR |
2108 | XSETCAR (reading_selection_reply, |
2109 | (event->property != 0 ? Qt : Qlambda)); | |
ede4db72 RS |
2110 | } |
2111 | ||
2112 | \f | |
a0d76c27 | 2113 | DEFUN ("x-own-selection-internal", Fx_own_selection_internal, |
8c1a1077 PJ |
2114 | Sx_own_selection_internal, 2, 2, 0, |
2115 | doc: /* Assert an X selection of the given TYPE with the given VALUE. | |
2116 | TYPE is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2117 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2118 | VALUE is typically a string, or a cons of two markers, but may be | |
2119 | anything that the functions on `selection-converter-alist' know about. */) | |
2120 | (selection_name, selection_value) | |
ede4db72 RS |
2121 | Lisp_Object selection_name, selection_value; |
2122 | { | |
703e0710 | 2123 | check_x (); |
b7826503 | 2124 | CHECK_SYMBOL (selection_name); |
253b2298 | 2125 | if (NILP (selection_value)) error ("SELECTION-VALUE may not be nil"); |
ede4db72 RS |
2126 | x_own_selection (selection_name, selection_value); |
2127 | return selection_value; | |
2128 | } | |
2129 | ||
2130 | ||
2131 | /* Request the selection value from the owner. If we are the owner, | |
2132 | simply return our selection value. If we are not the owner, this | |
2133 | will block until all of the data has arrived. */ | |
2134 | ||
a0d76c27 | 2135 | DEFUN ("x-get-selection-internal", Fx_get_selection_internal, |
3a42401d | 2136 | Sx_get_selection_internal, 2, 3, 0, |
8c1a1077 PJ |
2137 | doc: /* Return text selected from some X window. |
2138 | SELECTION is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2139 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
3a42401d JD |
2140 | TYPE is the type of data desired, typically `STRING'. |
2141 | TIME_STAMP is the time to use in the XConvertSelection call for foreign | |
2142 | selections. If omitted, defaults to the time for the last event. */) | |
2143 | (selection_symbol, target_type, time_stamp) | |
2144 | Lisp_Object selection_symbol, target_type, time_stamp; | |
ede4db72 RS |
2145 | { |
2146 | Lisp_Object val = Qnil; | |
2147 | struct gcpro gcpro1, gcpro2; | |
2148 | GCPRO2 (target_type, val); /* we store newly consed data into these */ | |
703e0710 | 2149 | check_x (); |
b7826503 | 2150 | CHECK_SYMBOL (selection_symbol); |
ede4db72 RS |
2151 | |
2152 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
2153 | if (CONSP (target_type) | |
8e713be6 | 2154 | && XCAR (target_type) == QMULTIPLE) |
ede4db72 | 2155 | { |
b7826503 | 2156 | CHECK_VECTOR (XCDR (target_type)); |
ede4db72 RS |
2157 | /* So we don't destructively modify this... */ |
2158 | target_type = copy_multiple_data (target_type); | |
2159 | } | |
2160 | else | |
2161 | #endif | |
b7826503 | 2162 | CHECK_SYMBOL (target_type); |
ede4db72 | 2163 | |
5109c8dd | 2164 | val = x_get_local_selection (selection_symbol, target_type, 1); |
ede4db72 RS |
2165 | |
2166 | if (NILP (val)) | |
2167 | { | |
3a42401d | 2168 | val = x_get_foreign_selection (selection_symbol, target_type, time_stamp); |
ede4db72 RS |
2169 | goto DONE; |
2170 | } | |
2171 | ||
2172 | if (CONSP (val) | |
8e713be6 | 2173 | && SYMBOLP (XCAR (val))) |
ede4db72 | 2174 | { |
8e713be6 KR |
2175 | val = XCDR (val); |
2176 | if (CONSP (val) && NILP (XCDR (val))) | |
2177 | val = XCAR (val); | |
ede4db72 RS |
2178 | } |
2179 | val = clean_local_selection_data (val); | |
2180 | DONE: | |
2181 | UNGCPRO; | |
2182 | return val; | |
2183 | } | |
2184 | ||
a0d76c27 | 2185 | DEFUN ("x-disown-selection-internal", Fx_disown_selection_internal, |
8c1a1077 PJ |
2186 | Sx_disown_selection_internal, 1, 2, 0, |
2187 | doc: /* If we own the selection SELECTION, disown it. | |
2188 | Disowning it means there is no such selection. */) | |
2189 | (selection, time) | |
ede4db72 RS |
2190 | Lisp_Object selection; |
2191 | Lisp_Object time; | |
2192 | { | |
ede4db72 RS |
2193 | Time timestamp; |
2194 | Atom selection_atom; | |
31df61d6 AS |
2195 | union { |
2196 | struct selection_input_event sie; | |
2197 | struct input_event ie; | |
2198 | } event; | |
3834c318 | 2199 | Display *display; |
5c3a351a | 2200 | struct x_display_info *dpyinfo; |
378c33ca | 2201 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2202 | |
703e0710 | 2203 | check_x (); |
378c33ca GM |
2204 | display = FRAME_X_DISPLAY (sf); |
2205 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
b7826503 | 2206 | CHECK_SYMBOL (selection); |
ede4db72 | 2207 | if (NILP (time)) |
7da64e5c | 2208 | timestamp = last_event_timestamp; |
ede4db72 RS |
2209 | else |
2210 | timestamp = cons_to_long (time); | |
2211 | ||
2212 | if (NILP (assq_no_quit (selection, Vselection_alist))) | |
2213 | return Qnil; /* Don't disown the selection when we're not the owner. */ | |
2214 | ||
5c3a351a | 2215 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection); |
ede4db72 RS |
2216 | |
2217 | BLOCK_INPUT; | |
2218 | XSetSelectionOwner (display, selection_atom, None, timestamp); | |
2219 | UNBLOCK_INPUT; | |
2220 | ||
eb8c3be9 | 2221 | /* It doesn't seem to be guaranteed that a SelectionClear event will be |
ede4db72 RS |
2222 | generated for a window which owns the selection when that window sets |
2223 | the selection owner to None. The NCD server does, the MIT Sun4 server | |
2224 | doesn't. So we synthesize one; this means we might get two, but | |
2225 | that's ok, because the second one won't have any effect. */ | |
31df61d6 AS |
2226 | SELECTION_EVENT_DISPLAY (&event.sie) = display; |
2227 | SELECTION_EVENT_SELECTION (&event.sie) = selection_atom; | |
2228 | SELECTION_EVENT_TIME (&event.sie) = timestamp; | |
2229 | x_handle_selection_clear (&event.ie); | |
ede4db72 RS |
2230 | |
2231 | return Qt; | |
2232 | } | |
2233 | ||
a87ed99c RS |
2234 | /* Get rid of all the selections in buffer BUFFER. |
2235 | This is used when we kill a buffer. */ | |
2236 | ||
2237 | void | |
2238 | x_disown_buffer_selections (buffer) | |
2239 | Lisp_Object buffer; | |
2240 | { | |
2241 | Lisp_Object tail; | |
2242 | struct buffer *buf = XBUFFER (buffer); | |
2243 | ||
8e713be6 | 2244 | for (tail = Vselection_alist; CONSP (tail); tail = XCDR (tail)) |
a87ed99c RS |
2245 | { |
2246 | Lisp_Object elt, value; | |
8e713be6 KR |
2247 | elt = XCAR (tail); |
2248 | value = XCDR (elt); | |
2249 | if (CONSP (value) && MARKERP (XCAR (value)) | |
2250 | && XMARKER (XCAR (value))->buffer == buf) | |
2251 | Fx_disown_selection_internal (XCAR (elt), Qnil); | |
a87ed99c RS |
2252 | } |
2253 | } | |
ede4db72 RS |
2254 | |
2255 | DEFUN ("x-selection-owner-p", Fx_selection_owner_p, Sx_selection_owner_p, | |
8c1a1077 PJ |
2256 | 0, 1, 0, |
2257 | doc: /* Whether the current Emacs process owns the given X Selection. | |
2258 | The arg should be the name of the selection in question, typically one of | |
2259 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2260 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2261 | For convenience, the symbol nil is the same as `PRIMARY', | |
2262 | and t is the same as `SECONDARY'. */) | |
2263 | (selection) | |
ede4db72 RS |
2264 | Lisp_Object selection; |
2265 | { | |
703e0710 | 2266 | check_x (); |
b7826503 | 2267 | CHECK_SYMBOL (selection); |
ede4db72 RS |
2268 | if (EQ (selection, Qnil)) selection = QPRIMARY; |
2269 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
1b65481e | 2270 | |
ede4db72 RS |
2271 | if (NILP (Fassq (selection, Vselection_alist))) |
2272 | return Qnil; | |
2273 | return Qt; | |
2274 | } | |
2275 | ||
2276 | DEFUN ("x-selection-exists-p", Fx_selection_exists_p, Sx_selection_exists_p, | |
8c1a1077 PJ |
2277 | 0, 1, 0, |
2278 | doc: /* Whether there is an owner for the given X Selection. | |
2279 | The arg should be the name of the selection in question, typically one of | |
2280 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2281 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2282 | For convenience, the symbol nil is the same as `PRIMARY', | |
2283 | and t is the same as `SECONDARY'. */) | |
2284 | (selection) | |
ede4db72 RS |
2285 | Lisp_Object selection; |
2286 | { | |
2287 | Window owner; | |
356ba514 | 2288 | Atom atom; |
3834c318 | 2289 | Display *dpy; |
378c33ca | 2290 | struct frame *sf = SELECTED_FRAME (); |
3834c318 | 2291 | |
b8c70430 | 2292 | /* It should be safe to call this before we have an X frame. */ |
378c33ca | 2293 | if (! FRAME_X_P (sf)) |
b8c70430 RS |
2294 | return Qnil; |
2295 | ||
378c33ca | 2296 | dpy = FRAME_X_DISPLAY (sf); |
b7826503 | 2297 | CHECK_SYMBOL (selection); |
ede4db72 RS |
2298 | if (!NILP (Fx_selection_owner_p (selection))) |
2299 | return Qt; | |
356ba514 RS |
2300 | if (EQ (selection, Qnil)) selection = QPRIMARY; |
2301 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
378c33ca | 2302 | atom = symbol_to_x_atom (FRAME_X_DISPLAY_INFO (sf), dpy, selection); |
356ba514 RS |
2303 | if (atom == 0) |
2304 | return Qnil; | |
ede4db72 | 2305 | BLOCK_INPUT; |
356ba514 | 2306 | owner = XGetSelectionOwner (dpy, atom); |
ede4db72 RS |
2307 | UNBLOCK_INPUT; |
2308 | return (owner ? Qt : Qnil); | |
2309 | } | |
2310 | ||
2311 | \f | |
2312 | #ifdef CUT_BUFFER_SUPPORT | |
2313 | ||
ede4db72 RS |
2314 | /* Ensure that all 8 cut buffers exist. ICCCM says we gotta... */ |
2315 | static void | |
2316 | initialize_cut_buffers (display, window) | |
2317 | Display *display; | |
2318 | Window window; | |
2319 | { | |
2320 | unsigned char *data = (unsigned char *) ""; | |
2321 | BLOCK_INPUT; | |
2322 | #define FROB(atom) XChangeProperty (display, window, atom, XA_STRING, 8, \ | |
2323 | PropModeAppend, data, 0) | |
2324 | FROB (XA_CUT_BUFFER0); | |
2325 | FROB (XA_CUT_BUFFER1); | |
2326 | FROB (XA_CUT_BUFFER2); | |
2327 | FROB (XA_CUT_BUFFER3); | |
2328 | FROB (XA_CUT_BUFFER4); | |
2329 | FROB (XA_CUT_BUFFER5); | |
2330 | FROB (XA_CUT_BUFFER6); | |
2331 | FROB (XA_CUT_BUFFER7); | |
2332 | #undef FROB | |
2333 | UNBLOCK_INPUT; | |
ede4db72 RS |
2334 | } |
2335 | ||
2336 | ||
b7826503 PJ |
2337 | #define CHECK_CUT_BUFFER(symbol) \ |
2338 | { CHECK_SYMBOL ((symbol)); \ | |
ede4db72 RS |
2339 | if (!EQ((symbol), QCUT_BUFFER0) && !EQ((symbol), QCUT_BUFFER1) \ |
2340 | && !EQ((symbol), QCUT_BUFFER2) && !EQ((symbol), QCUT_BUFFER3) \ | |
2341 | && !EQ((symbol), QCUT_BUFFER4) && !EQ((symbol), QCUT_BUFFER5) \ | |
2342 | && !EQ((symbol), QCUT_BUFFER6) && !EQ((symbol), QCUT_BUFFER7)) \ | |
2343 | Fsignal (Qerror, \ | |
a87ed99c | 2344 | Fcons (build_string ("doesn't name a cut buffer"), \ |
ede4db72 RS |
2345 | Fcons ((symbol), Qnil))); \ |
2346 | } | |
2347 | ||
a87ed99c | 2348 | DEFUN ("x-get-cut-buffer-internal", Fx_get_cut_buffer_internal, |
8c1a1077 PJ |
2349 | Sx_get_cut_buffer_internal, 1, 1, 0, |
2350 | doc: /* Returns the value of the named cut buffer (typically CUT_BUFFER0). */) | |
2351 | (buffer) | |
ede4db72 RS |
2352 | Lisp_Object buffer; |
2353 | { | |
3834c318 | 2354 | Window window; |
ede4db72 RS |
2355 | Atom buffer_atom; |
2356 | unsigned char *data; | |
2357 | int bytes; | |
2358 | Atom type; | |
2359 | int format; | |
2360 | unsigned long size; | |
2361 | Lisp_Object ret; | |
3834c318 | 2362 | Display *display; |
5c3a351a | 2363 | struct x_display_info *dpyinfo; |
378c33ca | 2364 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2365 | |
703e0710 | 2366 | check_x (); |
378c33ca GM |
2367 | display = FRAME_X_DISPLAY (sf); |
2368 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
3834c318 | 2369 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
b7826503 | 2370 | CHECK_CUT_BUFFER (buffer); |
5c3a351a | 2371 | buffer_atom = symbol_to_x_atom (dpyinfo, display, buffer); |
ede4db72 RS |
2372 | |
2373 | x_get_window_property (display, window, buffer_atom, &data, &bytes, | |
2374 | &type, &format, &size, 0); | |
22e00739 RS |
2375 | if (!data || !format) |
2376 | return Qnil; | |
1b65481e | 2377 | |
ede4db72 RS |
2378 | if (format != 8 || type != XA_STRING) |
2379 | Fsignal (Qerror, | |
2380 | Fcons (build_string ("cut buffer doesn't contain 8-bit data"), | |
d9c0d4a3 | 2381 | Fcons (x_atom_to_symbol (display, type), |
ede4db72 RS |
2382 | Fcons (make_number (format), Qnil)))); |
2383 | ||
3f6b532c | 2384 | ret = (bytes ? make_unibyte_string ((char *) data, bytes) : Qnil); |
4feb31b2 | 2385 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 2386 | calls xmalloc itself. */ |
4feb31b2 | 2387 | xfree (data); |
ede4db72 RS |
2388 | return ret; |
2389 | } | |
2390 | ||
2391 | ||
a87ed99c | 2392 | DEFUN ("x-store-cut-buffer-internal", Fx_store_cut_buffer_internal, |
8c1a1077 PJ |
2393 | Sx_store_cut_buffer_internal, 2, 2, 0, |
2394 | doc: /* Sets the value of the named cut buffer (typically CUT_BUFFER0). */) | |
2395 | (buffer, string) | |
ede4db72 RS |
2396 | Lisp_Object buffer, string; |
2397 | { | |
3834c318 | 2398 | Window window; |
ede4db72 RS |
2399 | Atom buffer_atom; |
2400 | unsigned char *data; | |
2401 | int bytes; | |
2402 | int bytes_remaining; | |
3834c318 RS |
2403 | int max_bytes; |
2404 | Display *display; | |
378c33ca | 2405 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2406 | |
703e0710 | 2407 | check_x (); |
378c33ca | 2408 | display = FRAME_X_DISPLAY (sf); |
3834c318 RS |
2409 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
2410 | ||
2411 | max_bytes = SELECTION_QUANTUM (display); | |
2412 | if (max_bytes > MAX_SELECTION_QUANTUM) | |
2413 | max_bytes = MAX_SELECTION_QUANTUM; | |
2414 | ||
b7826503 PJ |
2415 | CHECK_CUT_BUFFER (buffer); |
2416 | CHECK_STRING (string); | |
378c33ca | 2417 | buffer_atom = symbol_to_x_atom (FRAME_X_DISPLAY_INFO (sf), |
5c3a351a | 2418 | display, buffer); |
d5db4077 KR |
2419 | data = (unsigned char *) SDATA (string); |
2420 | bytes = SBYTES (string); | |
ede4db72 RS |
2421 | bytes_remaining = bytes; |
2422 | ||
378c33ca | 2423 | if (! FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized) |
04649dbc KH |
2424 | { |
2425 | initialize_cut_buffers (display, window); | |
378c33ca | 2426 | FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized = 1; |
04649dbc | 2427 | } |
ede4db72 RS |
2428 | |
2429 | BLOCK_INPUT; | |
10608c8c RS |
2430 | |
2431 | /* Don't mess up with an empty value. */ | |
2432 | if (!bytes_remaining) | |
2433 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
2434 | PropModeReplace, data, 0); | |
2435 | ||
ede4db72 RS |
2436 | while (bytes_remaining) |
2437 | { | |
2438 | int chunk = (bytes_remaining < max_bytes | |
2439 | ? bytes_remaining : max_bytes); | |
2440 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
2441 | (bytes_remaining == bytes | |
2442 | ? PropModeReplace | |
2443 | : PropModeAppend), | |
2444 | data, chunk); | |
2445 | data += chunk; | |
2446 | bytes_remaining -= chunk; | |
2447 | } | |
2448 | UNBLOCK_INPUT; | |
2449 | return string; | |
2450 | } | |
2451 | ||
2452 | ||
a87ed99c | 2453 | DEFUN ("x-rotate-cut-buffers-internal", Fx_rotate_cut_buffers_internal, |
8c1a1077 PJ |
2454 | Sx_rotate_cut_buffers_internal, 1, 1, 0, |
2455 | doc: /* Rotate the values of the cut buffers by the given number of step. | |
2456 | Positive means shift the values forward, negative means backward. */) | |
2457 | (n) | |
ede4db72 RS |
2458 | Lisp_Object n; |
2459 | { | |
3834c318 RS |
2460 | Window window; |
2461 | Atom props[8]; | |
2462 | Display *display; | |
378c33ca | 2463 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2464 | |
703e0710 | 2465 | check_x (); |
378c33ca | 2466 | display = FRAME_X_DISPLAY (sf); |
3834c318 | 2467 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
b7826503 | 2468 | CHECK_NUMBER (n); |
3834c318 RS |
2469 | if (XINT (n) == 0) |
2470 | return n; | |
378c33ca | 2471 | if (! FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized) |
04649dbc KH |
2472 | { |
2473 | initialize_cut_buffers (display, window); | |
378c33ca | 2474 | FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized = 1; |
04649dbc | 2475 | } |
3834c318 | 2476 | |
ede4db72 RS |
2477 | props[0] = XA_CUT_BUFFER0; |
2478 | props[1] = XA_CUT_BUFFER1; | |
2479 | props[2] = XA_CUT_BUFFER2; | |
2480 | props[3] = XA_CUT_BUFFER3; | |
2481 | props[4] = XA_CUT_BUFFER4; | |
2482 | props[5] = XA_CUT_BUFFER5; | |
2483 | props[6] = XA_CUT_BUFFER6; | |
2484 | props[7] = XA_CUT_BUFFER7; | |
2485 | BLOCK_INPUT; | |
2486 | XRotateWindowProperties (display, window, props, 8, XINT (n)); | |
2487 | UNBLOCK_INPUT; | |
2488 | return n; | |
2489 | } | |
2490 | ||
2491 | #endif | |
2492 | \f | |
1fb3821b JD |
2493 | /*********************************************************************** |
2494 | Drag and drop support | |
2495 | ***********************************************************************/ | |
2496 | /* Check that lisp values are of correct type for x_fill_property_data. | |
2497 | That is, number, string or a cons with two numbers (low and high 16 | |
2498 | bit parts of a 32 bit number). */ | |
2499 | ||
2500 | int | |
2501 | x_check_property_data (data) | |
2502 | Lisp_Object data; | |
2503 | { | |
2504 | Lisp_Object iter; | |
2505 | int size = 0; | |
2506 | ||
2507 | for (iter = data; CONSP (iter) && size != -1; iter = XCDR (iter), ++size) | |
2508 | { | |
2509 | Lisp_Object o = XCAR (iter); | |
2510 | ||
2511 | if (! NUMBERP (o) && ! STRINGP (o) && ! CONSP (o)) | |
2512 | size = -1; | |
2513 | else if (CONSP (o) && | |
2514 | (! NUMBERP (XCAR (o)) || ! NUMBERP (XCDR (o)))) | |
2515 | size = -1; | |
2516 | } | |
2517 | ||
2518 | return size; | |
2519 | } | |
2520 | ||
2521 | /* Convert lisp values to a C array. Values may be a number, a string | |
2522 | which is taken as an X atom name and converted to the atom value, or | |
2523 | a cons containing the two 16 bit parts of a 32 bit number. | |
2524 | ||
2525 | DPY is the display use to look up X atoms. | |
2526 | DATA is a Lisp list of values to be converted. | |
2527 | RET is the C array that contains the converted values. It is assumed | |
ff59904a | 2528 | it is big enough to hold all values. |
e22cf39c JD |
2529 | FORMAT is 8, 16 or 32 and denotes char/short/long for each C value to |
2530 | be stored in RET. Note that long is used for 32 even if long is more | |
2531 | than 32 bits (see man pages for XChangeProperty, XGetWindowProperty and | |
2532 | XClientMessageEvent). */ | |
1fb3821b JD |
2533 | |
2534 | void | |
2535 | x_fill_property_data (dpy, data, ret, format) | |
2536 | Display *dpy; | |
2537 | Lisp_Object data; | |
2538 | void *ret; | |
2539 | int format; | |
2540 | { | |
e22cf39c JD |
2541 | long val; |
2542 | long *d32 = (long *) ret; | |
2543 | short *d16 = (short *) ret; | |
2544 | char *d08 = (char *) ret; | |
1fb3821b JD |
2545 | Lisp_Object iter; |
2546 | ||
2547 | for (iter = data; CONSP (iter); iter = XCDR (iter)) | |
2548 | { | |
2549 | Lisp_Object o = XCAR (iter); | |
2550 | ||
2551 | if (INTEGERP (o)) | |
e22cf39c | 2552 | val = (long) XFASTINT (o); |
1fb3821b | 2553 | else if (FLOATP (o)) |
e22cf39c | 2554 | val = (long) XFLOAT_DATA (o); |
1fb3821b | 2555 | else if (CONSP (o)) |
e22cf39c | 2556 | val = (long) cons_to_long (o); |
1fb3821b JD |
2557 | else if (STRINGP (o)) |
2558 | { | |
2559 | BLOCK_INPUT; | |
e22cf39c | 2560 | val = (long) XInternAtom (dpy, (char *) SDATA (o), False); |
1fb3821b JD |
2561 | UNBLOCK_INPUT; |
2562 | } | |
2563 | else | |
2564 | error ("Wrong type, must be string, number or cons"); | |
2565 | ||
2566 | if (format == 8) | |
e22cf39c | 2567 | *d08++ = (char) val; |
1fb3821b | 2568 | else if (format == 16) |
e22cf39c | 2569 | *d16++ = (short) val; |
1fb3821b JD |
2570 | else |
2571 | *d32++ = val; | |
2572 | } | |
2573 | } | |
2574 | ||
2575 | /* Convert an array of C values to a Lisp list. | |
2576 | F is the frame to be used to look up X atoms if the TYPE is XA_ATOM. | |
2577 | DATA is a C array of values to be converted. | |
2578 | TYPE is the type of the data. Only XA_ATOM is special, it converts | |
2579 | each number in DATA to its corresponfing X atom as a symbol. | |
2580 | FORMAT is 8, 16 or 32 and gives the size in bits for each C value to | |
2581 | be stored in RET. | |
2582 | SIZE is the number of elements in DATA. | |
2583 | ||
b8d6f4af JD |
2584 | Important: When format is 32, data should contain an array of int, |
2585 | not an array of long as the X library returns. This makes a difference | |
2586 | when sizeof(long) != sizeof(int). | |
2587 | ||
1fb3821b JD |
2588 | Also see comment for selection_data_to_lisp_data above. */ |
2589 | ||
2590 | Lisp_Object | |
2591 | x_property_data_to_lisp (f, data, type, format, size) | |
2592 | struct frame *f; | |
2593 | unsigned char *data; | |
2594 | Atom type; | |
2595 | int format; | |
2596 | unsigned long size; | |
2597 | { | |
2598 | return selection_data_to_lisp_data (FRAME_X_DISPLAY (f), | |
2599 | data, size*format/8, type, format); | |
2600 | } | |
2601 | ||
31f16913 | 2602 | /* Get the mouse position in frame relative coordinates. */ |
1fb3821b JD |
2603 | |
2604 | static void | |
2605 | mouse_position_for_drop (f, x, y) | |
2606 | FRAME_PTR f; | |
2607 | int *x; | |
2608 | int *y; | |
2609 | { | |
2610 | Window root, dummy_window; | |
2611 | int dummy; | |
2612 | ||
2613 | BLOCK_INPUT; | |
2614 | ||
2615 | XQueryPointer (FRAME_X_DISPLAY (f), | |
2616 | DefaultRootWindow (FRAME_X_DISPLAY (f)), | |
2617 | ||
2618 | /* The root window which contains the pointer. */ | |
2619 | &root, | |
2620 | ||
2621 | /* Window pointer is on, not used */ | |
2622 | &dummy_window, | |
2623 | ||
2624 | /* The position on that root window. */ | |
2625 | x, y, | |
2626 | ||
2627 | /* x/y in dummy_window coordinates, not used. */ | |
2628 | &dummy, &dummy, | |
2629 | ||
2630 | /* Modifier keys and pointer buttons, about which | |
2631 | we don't care. */ | |
2632 | (unsigned int *) &dummy); | |
2633 | ||
2634 | ||
2635 | /* Absolute to relative. */ | |
2636 | *x -= f->left_pos + FRAME_OUTER_TO_INNER_DIFF_X (f); | |
2637 | *y -= f->top_pos + FRAME_OUTER_TO_INNER_DIFF_Y (f); | |
2638 | ||
2639 | UNBLOCK_INPUT; | |
2640 | } | |
2641 | ||
2642 | DEFUN ("x-get-atom-name", Fx_get_atom_name, | |
2643 | Sx_get_atom_name, 1, 2, 0, | |
2644 | doc: /* Return the X atom name for VALUE as a string. | |
2645 | VALUE may be a number or a cons where the car is the upper 16 bits and | |
2646 | the cdr is the lower 16 bits of a 32 bit value. | |
2647 | Use the display for FRAME or the current frame if FRAME is not given or nil. | |
2648 | ||
2649 | If the value is 0 or the atom is not known, return the empty string. */) | |
2650 | (value, frame) | |
2651 | Lisp_Object value, frame; | |
2652 | { | |
2653 | struct frame *f = check_x_frame (frame); | |
2654 | char *name = 0; | |
2655 | Lisp_Object ret = Qnil; | |
1fb3821b JD |
2656 | Display *dpy = FRAME_X_DISPLAY (f); |
2657 | Atom atom; | |
2658 | ||
2659 | if (INTEGERP (value)) | |
2660 | atom = (Atom) XUINT (value); | |
2661 | else if (FLOATP (value)) | |
ff59904a | 2662 | atom = (Atom) XFLOAT_DATA (value); |
1fb3821b JD |
2663 | else if (CONSP (value)) |
2664 | atom = (Atom) cons_to_long (value); | |
2665 | else | |
2666 | error ("Wrong type, value must be number or cons"); | |
2667 | ||
2668 | BLOCK_INPUT; | |
9ba8e10d | 2669 | x_catch_errors (dpy); |
1fb3821b JD |
2670 | |
2671 | name = atom ? XGetAtomName (dpy, atom) : ""; | |
2672 | ||
2673 | if (! x_had_errors_p (dpy)) | |
2674 | ret = make_string (name, strlen (name)); | |
2675 | ||
4545fa20 | 2676 | x_uncatch_errors (); |
1fb3821b JD |
2677 | |
2678 | if (atom && name) XFree (name); | |
2679 | if (NILP (ret)) ret = make_string ("", 0); | |
2680 | ||
2681 | UNBLOCK_INPUT; | |
2682 | ||
2683 | return ret; | |
2684 | } | |
2685 | ||
2686 | /* Convert an XClientMessageEvent to a Lisp event of type DRAG_N_DROP_EVENT. | |
2687 | TODO: Check if this client event really is a DND event? */ | |
2688 | ||
2689 | int | |
2690 | x_handle_dnd_message (f, event, dpyinfo, bufp) | |
2691 | struct frame *f; | |
2692 | XClientMessageEvent *event; | |
2693 | struct x_display_info *dpyinfo; | |
2694 | struct input_event *bufp; | |
2695 | { | |
2696 | Lisp_Object vec; | |
2697 | Lisp_Object frame; | |
e22cf39c JD |
2698 | /* format 32 => size 5, format 16 => size 10, format 8 => size 20 */ |
2699 | unsigned long size = 160/event->format; | |
1fb3821b | 2700 | int x, y; |
31f16913 JD |
2701 | unsigned char *data = (unsigned char *) event->data.b; |
2702 | int idata[5]; | |
1fb3821b JD |
2703 | |
2704 | XSETFRAME (frame, f); | |
2705 | ||
31f16913 JD |
2706 | /* On a 64 bit machine, the event->data.l array members are 64 bits (long), |
2707 | but the x_property_data_to_lisp (or rather selection_data_to_lisp_data) | |
2708 | function expects them to be of size int (i.e. 32). So to be able to | |
2709 | use that function, put the data in the form it expects if format is 32. */ | |
2710 | ||
2711 | if (event->format == 32 && event->format < BITS_PER_LONG) | |
2712 | { | |
2713 | int i; | |
2714 | for (i = 0; i < 5; ++i) /* There are only 5 longs in a ClientMessage. */ | |
2715 | idata[i] = (int) event->data.l[i]; | |
2716 | data = (unsigned char *) idata; | |
2717 | } | |
2718 | ||
d2f14999 | 2719 | vec = Fmake_vector (make_number (4), Qnil); |
1fb3821b JD |
2720 | AREF (vec, 0) = SYMBOL_NAME (x_atom_to_symbol (FRAME_X_DISPLAY (f), |
2721 | event->message_type)); | |
2722 | AREF (vec, 1) = frame; | |
d2f14999 | 2723 | AREF (vec, 2) = make_number (event->format); |
1fb3821b | 2724 | AREF (vec, 3) = x_property_data_to_lisp (f, |
31f16913 | 2725 | data, |
1fb3821b JD |
2726 | event->message_type, |
2727 | event->format, | |
2728 | size); | |
2729 | ||
2730 | mouse_position_for_drop (f, &x, &y); | |
2731 | bufp->kind = DRAG_N_DROP_EVENT; | |
862c94ca | 2732 | bufp->frame_or_window = frame; |
1fb3821b JD |
2733 | bufp->timestamp = CurrentTime; |
2734 | bufp->x = make_number (x); | |
2735 | bufp->y = make_number (y); | |
862c94ca | 2736 | bufp->arg = vec; |
1fb3821b JD |
2737 | bufp->modifiers = 0; |
2738 | ||
2739 | return 1; | |
2740 | } | |
2741 | ||
2742 | DEFUN ("x-send-client-message", Fx_send_client_event, | |
2743 | Sx_send_client_message, 6, 6, 0, | |
2744 | doc: /* Send a client message of MESSAGE-TYPE to window DEST on DISPLAY. | |
2745 | ||
2746 | For DISPLAY, specify either a frame or a display name (a string). | |
2747 | If DISPLAY is nil, that stands for the selected frame's display. | |
2748 | DEST may be a number, in which case it is a Window id. The value 0 may | |
2749 | be used to send to the root window of the DISPLAY. | |
2750 | If DEST is a cons, it is converted to a 32 bit number | |
2751 | with the high 16 bits from the car and the lower 16 bit from the cdr. That | |
2752 | number is then used as a window id. | |
2753 | If DEST is a frame the event is sent to the outer window of that frame. | |
2754 | Nil means the currently selected frame. | |
2755 | If DEST is the string "PointerWindow" the event is sent to the window that | |
2756 | contains the pointer. If DEST is the string "InputFocus" the event is | |
2757 | sent to the window that has the input focus. | |
2758 | FROM is the frame sending the event. Use nil for currently selected frame. | |
2759 | MESSAGE-TYPE is the name of an Atom as a string. | |
2760 | FORMAT must be one of 8, 16 or 32 and determines the size of the values in | |
2761 | bits. VALUES is a list of numbers, cons and/or strings containing the values | |
2762 | to send. If a value is a string, it is converted to an Atom and the value of | |
2763 | the Atom is sent. If a value is a cons, it is converted to a 32 bit number | |
2764 | with the high 16 bits from the car and the lower 16 bit from the cdr. | |
2765 | If more values than fits into the event is given, the excessive values | |
2766 | are ignored. */) | |
2767 | (display, dest, from, message_type, format, values) | |
2768 | Lisp_Object display, dest, from, message_type, format, values; | |
2769 | { | |
2770 | struct x_display_info *dpyinfo = check_x_display_info (display); | |
2771 | Window wdest; | |
2772 | XEvent event; | |
2773 | Lisp_Object cons; | |
2774 | int size; | |
2775 | struct frame *f = check_x_frame (from); | |
1fb3821b JD |
2776 | int to_root; |
2777 | ||
2778 | CHECK_STRING (message_type); | |
2779 | CHECK_NUMBER (format); | |
2780 | CHECK_CONS (values); | |
2781 | ||
2782 | if (x_check_property_data (values) == -1) | |
2783 | error ("Bad data in VALUES, must be number, cons or string"); | |
2784 | ||
2785 | event.xclient.type = ClientMessage; | |
2786 | event.xclient.format = XFASTINT (format); | |
2787 | ||
2788 | if (event.xclient.format != 8 && event.xclient.format != 16 | |
2789 | && event.xclient.format != 32) | |
2790 | error ("FORMAT must be one of 8, 16 or 32"); | |
a0ecb2ac | 2791 | |
1fb3821b JD |
2792 | if (FRAMEP (dest) || NILP (dest)) |
2793 | { | |
2794 | struct frame *fdest = check_x_frame (dest); | |
2795 | wdest = FRAME_OUTER_WINDOW (fdest); | |
2796 | } | |
2797 | else if (STRINGP (dest)) | |
2798 | { | |
2799 | if (strcmp (SDATA (dest), "PointerWindow") == 0) | |
2800 | wdest = PointerWindow; | |
2801 | else if (strcmp (SDATA (dest), "InputFocus") == 0) | |
2802 | wdest = InputFocus; | |
2803 | else | |
2804 | error ("DEST as a string must be one of PointerWindow or InputFocus"); | |
2805 | } | |
2806 | else if (INTEGERP (dest)) | |
2807 | wdest = (Window) XFASTINT (dest); | |
2808 | else if (FLOATP (dest)) | |
ff59904a | 2809 | wdest = (Window) XFLOAT_DATA (dest); |
1fb3821b JD |
2810 | else if (CONSP (dest)) |
2811 | { | |
2812 | if (! NUMBERP (XCAR (dest)) || ! NUMBERP (XCDR (dest))) | |
2813 | error ("Both car and cdr for DEST must be numbers"); | |
2814 | else | |
2815 | wdest = (Window) cons_to_long (dest); | |
2816 | } | |
2817 | else | |
2818 | error ("DEST must be a frame, nil, string, number or cons"); | |
2819 | ||
2820 | if (wdest == 0) wdest = dpyinfo->root_window; | |
2821 | to_root = wdest == dpyinfo->root_window; | |
2822 | ||
2823 | for (cons = values, size = 0; CONSP (cons); cons = XCDR (cons), ++size) | |
2824 | ; | |
2825 | ||
2826 | BLOCK_INPUT; | |
2827 | ||
2828 | event.xclient.message_type | |
2829 | = XInternAtom (dpyinfo->display, SDATA (message_type), False); | |
2830 | event.xclient.display = dpyinfo->display; | |
2831 | ||
2832 | /* Some clients (metacity for example) expects sending window to be here | |
2833 | when sending to the root window. */ | |
2834 | event.xclient.window = to_root ? FRAME_OUTER_WINDOW (f) : wdest; | |
2835 | ||
6e816df5 | 2836 | |
e22cf39c JD |
2837 | memset (event.xclient.data.b, 0, sizeof (event.xclient.data.b)); |
2838 | x_fill_property_data (dpyinfo->display, values, event.xclient.data.b, | |
2839 | event.xclient.format); | |
31f16913 | 2840 | |
1fb3821b JD |
2841 | /* If event mask is 0 the event is sent to the client that created |
2842 | the destination window. But if we are sending to the root window, | |
2843 | there is no such client. Then we set the event mask to 0xffff. The | |
2844 | event then goes to clients selecting for events on the root window. */ | |
9ba8e10d | 2845 | x_catch_errors (dpyinfo->display); |
1fb3821b JD |
2846 | { |
2847 | int propagate = to_root ? False : True; | |
2848 | unsigned mask = to_root ? 0xffff : 0; | |
2849 | XSendEvent (dpyinfo->display, wdest, propagate, mask, &event); | |
2850 | XFlush (dpyinfo->display); | |
2851 | } | |
4545fa20 | 2852 | x_uncatch_errors (); |
1fb3821b JD |
2853 | UNBLOCK_INPUT; |
2854 | ||
2855 | return Qnil; | |
2856 | } | |
2857 | ||
2858 | \f | |
ede4db72 RS |
2859 | void |
2860 | syms_of_xselect () | |
2861 | { | |
ede4db72 RS |
2862 | defsubr (&Sx_get_selection_internal); |
2863 | defsubr (&Sx_own_selection_internal); | |
2864 | defsubr (&Sx_disown_selection_internal); | |
2865 | defsubr (&Sx_selection_owner_p); | |
2866 | defsubr (&Sx_selection_exists_p); | |
2867 | ||
2868 | #ifdef CUT_BUFFER_SUPPORT | |
a87ed99c RS |
2869 | defsubr (&Sx_get_cut_buffer_internal); |
2870 | defsubr (&Sx_store_cut_buffer_internal); | |
2871 | defsubr (&Sx_rotate_cut_buffers_internal); | |
ede4db72 RS |
2872 | #endif |
2873 | ||
1fb3821b JD |
2874 | defsubr (&Sx_get_atom_name); |
2875 | defsubr (&Sx_send_client_message); | |
2876 | ||
ede4db72 RS |
2877 | reading_selection_reply = Fcons (Qnil, Qnil); |
2878 | staticpro (&reading_selection_reply); | |
2879 | reading_selection_window = 0; | |
2880 | reading_which_selection = 0; | |
2881 | ||
2882 | property_change_wait_list = 0; | |
2f65feb6 | 2883 | prop_location_identifier = 0; |
ede4db72 RS |
2884 | property_change_reply = Fcons (Qnil, Qnil); |
2885 | staticpro (&property_change_reply); | |
2886 | ||
2887 | Vselection_alist = Qnil; | |
2888 | staticpro (&Vselection_alist); | |
2889 | ||
2890 | DEFVAR_LISP ("selection-converter-alist", &Vselection_converter_alist, | |
8c1a1077 PJ |
2891 | doc: /* An alist associating X Windows selection-types with functions. |
2892 | These functions are called to convert the selection, with three args: | |
2893 | the name of the selection (typically `PRIMARY', `SECONDARY', or `CLIPBOARD'); | |
2894 | a desired type to which the selection should be converted; | |
2895 | and the local selection value (whatever was given to `x-own-selection'). | |
2896 | ||
2897 | The function should return the value to send to the X server | |
2898 | \(typically a string). A return value of nil | |
2899 | means that the conversion could not be done. | |
2900 | A return value which is the symbol `NULL' | |
2901 | means that a side-effect was executed, | |
2902 | and there is no meaningful selection value. */); | |
ede4db72 RS |
2903 | Vselection_converter_alist = Qnil; |
2904 | ||
c917a8de | 2905 | DEFVAR_LISP ("x-lost-selection-functions", &Vx_lost_selection_functions, |
8c1a1077 PJ |
2906 | doc: /* A list of functions to be called when Emacs loses an X selection. |
2907 | \(This happens when some other X client makes its own selection | |
2908 | or when a Lisp program explicitly clears the selection.) | |
2909 | The functions are called with one argument, the selection type | |
2910 | \(a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'). */); | |
c917a8de | 2911 | Vx_lost_selection_functions = Qnil; |
ede4db72 | 2912 | |
c917a8de | 2913 | DEFVAR_LISP ("x-sent-selection-functions", &Vx_sent_selection_functions, |
8c1a1077 PJ |
2914 | doc: /* A list of functions to be called when Emacs answers a selection request. |
2915 | The functions are called with four arguments: | |
2916 | - the selection name (typically `PRIMARY', `SECONDARY', or `CLIPBOARD'); | |
2917 | - the selection-type which Emacs was asked to convert the | |
2918 | selection into before sending (for example, `STRING' or `LENGTH'); | |
2919 | - a flag indicating success or failure for responding to the request. | |
2920 | We might have failed (and declined the request) for any number of reasons, | |
2921 | including being asked for a selection that we no longer own, or being asked | |
2922 | to convert into a type that we don't know about or that is inappropriate. | |
2923 | This hook doesn't let you change the behavior of Emacs's selection replies, | |
2924 | it merely informs you that they have happened. */); | |
c917a8de | 2925 | Vx_sent_selection_functions = Qnil; |
ede4db72 | 2926 | |
93e4ce1b | 2927 | DEFVAR_LISP ("selection-coding-system", &Vselection_coding_system, |
8c1a1077 PJ |
2928 | doc: /* Coding system for communicating with other X clients. |
2929 | When sending or receiving text via cut_buffer, selection, and clipboard, | |
2930 | the text is encoded or decoded by this coding system. | |
5a79ea57 EZ |
2931 | The default value is `compound-text-with-extensions'. */); |
2932 | Vselection_coding_system = intern ("compound-text-with-extensions"); | |
2584c9ec | 2933 | |
16cd5029 | 2934 | DEFVAR_LISP ("next-selection-coding-system", &Vnext_selection_coding_system, |
8c1a1077 PJ |
2935 | doc: /* Coding system for the next communication with other X clients. |
2936 | Usually, `selection-coding-system' is used for communicating with | |
f8f8d464 JB |
2937 | other X clients. But, if this variable is set, it is used for the |
2938 | next communication only. After the communication, this variable is | |
8c1a1077 | 2939 | set to nil. */); |
16cd5029 KH |
2940 | Vnext_selection_coding_system = Qnil; |
2941 | ||
ede4db72 | 2942 | DEFVAR_INT ("x-selection-timeout", &x_selection_timeout, |
8c1a1077 PJ |
2943 | doc: /* Number of milliseconds to wait for a selection reply. |
2944 | If the selection owner doesn't reply in this time, we give up. | |
2945 | A value of 0 means wait as long as necessary. This is initialized from the | |
2946 | \"*selectionTimeout\" resource. */); | |
ede4db72 RS |
2947 | x_selection_timeout = 0; |
2948 | ||
2949 | QPRIMARY = intern ("PRIMARY"); staticpro (&QPRIMARY); | |
2950 | QSECONDARY = intern ("SECONDARY"); staticpro (&QSECONDARY); | |
2951 | QSTRING = intern ("STRING"); staticpro (&QSTRING); | |
2952 | QINTEGER = intern ("INTEGER"); staticpro (&QINTEGER); | |
2953 | QCLIPBOARD = intern ("CLIPBOARD"); staticpro (&QCLIPBOARD); | |
2954 | QTIMESTAMP = intern ("TIMESTAMP"); staticpro (&QTIMESTAMP); | |
2955 | QTEXT = intern ("TEXT"); staticpro (&QTEXT); | |
e6c7c988 | 2956 | QCOMPOUND_TEXT = intern ("COMPOUND_TEXT"); staticpro (&QCOMPOUND_TEXT); |
5109c8dd | 2957 | QUTF8_STRING = intern ("UTF8_STRING"); staticpro (&QUTF8_STRING); |
ede4db72 RS |
2958 | QDELETE = intern ("DELETE"); staticpro (&QDELETE); |
2959 | QMULTIPLE = intern ("MULTIPLE"); staticpro (&QMULTIPLE); | |
2960 | QINCR = intern ("INCR"); staticpro (&QINCR); | |
2961 | QEMACS_TMP = intern ("_EMACS_TMP_"); staticpro (&QEMACS_TMP); | |
2962 | QTARGETS = intern ("TARGETS"); staticpro (&QTARGETS); | |
2963 | QATOM = intern ("ATOM"); staticpro (&QATOM); | |
2964 | QATOM_PAIR = intern ("ATOM_PAIR"); staticpro (&QATOM_PAIR); | |
2965 | QNULL = intern ("NULL"); staticpro (&QNULL); | |
5a79ea57 EZ |
2966 | Qcompound_text_with_extensions = intern ("compound-text-with-extensions"); |
2967 | staticpro (&Qcompound_text_with_extensions); | |
ede4db72 RS |
2968 | |
2969 | #ifdef CUT_BUFFER_SUPPORT | |
2970 | QCUT_BUFFER0 = intern ("CUT_BUFFER0"); staticpro (&QCUT_BUFFER0); | |
2971 | QCUT_BUFFER1 = intern ("CUT_BUFFER1"); staticpro (&QCUT_BUFFER1); | |
2972 | QCUT_BUFFER2 = intern ("CUT_BUFFER2"); staticpro (&QCUT_BUFFER2); | |
2973 | QCUT_BUFFER3 = intern ("CUT_BUFFER3"); staticpro (&QCUT_BUFFER3); | |
2974 | QCUT_BUFFER4 = intern ("CUT_BUFFER4"); staticpro (&QCUT_BUFFER4); | |
2975 | QCUT_BUFFER5 = intern ("CUT_BUFFER5"); staticpro (&QCUT_BUFFER5); | |
2976 | QCUT_BUFFER6 = intern ("CUT_BUFFER6"); staticpro (&QCUT_BUFFER6); | |
2977 | QCUT_BUFFER7 = intern ("CUT_BUFFER7"); staticpro (&QCUT_BUFFER7); | |
2978 | #endif | |
2979 | ||
e57ad4d8 KH |
2980 | Qforeign_selection = intern ("foreign-selection"); |
2981 | staticpro (&Qforeign_selection); | |
ede4db72 | 2982 | } |
ab5796a9 MB |
2983 | |
2984 | /* arch-tag: 7c293b0f-9918-4f69-8ac7-03e142307236 | |
2985 | (do not change this comment) */ |