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2408b3a1 | 1 | /* X Selection processing for Emacs. |
0b5538bd | 2 | Copyright (C) 1993, 1994, 1995, 1996, 1997, 2000, 2001, 2002, 2003, |
aaef169d | 3 | 2004, 2005, 2006 Free Software Foundation, Inc. |
ede4db72 RS |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
4fc5845f LK |
19 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 | Boston, MA 02110-1301, USA. */ | |
ede4db72 | 21 | |
c6c5df7f | 22 | |
ede4db72 RS |
23 | /* Rewritten by jwz */ |
24 | ||
18160b98 | 25 | #include <config.h> |
5b698285 | 26 | #include <stdio.h> /* termhooks.h needs this */ |
678b3958 KS |
27 | |
28 | #ifdef HAVE_SYS_TYPES_H | |
29 | #include <sys/types.h> | |
30 | #endif | |
31 | #ifdef HAVE_UNISTD_H | |
32 | #include <unistd.h> | |
33 | #endif | |
34 | ||
ede4db72 RS |
35 | #include "lisp.h" |
36 | #include "xterm.h" /* for all of the X includes */ | |
7da64e5c RS |
37 | #include "dispextern.h" /* frame.h seems to want this */ |
38 | #include "frame.h" /* Need this to get the X window of selected_frame */ | |
9ac0d9e0 | 39 | #include "blockinput.h" |
5faa9b45 | 40 | #include "buffer.h" |
dfcf069d | 41 | #include "process.h" |
1fb3821b | 42 | #include "termhooks.h" |
dd0fe424 | 43 | #include "keyboard.h" |
1fb3821b JD |
44 | |
45 | #include <X11/Xproto.h> | |
7da64e5c | 46 | |
d9c0d4a3 GM |
47 | struct prop_location; |
48 | ||
49 | static Lisp_Object x_atom_to_symbol P_ ((Display *dpy, Atom atom)); | |
50 | static Atom symbol_to_x_atom P_ ((struct x_display_info *, Display *, | |
51 | Lisp_Object)); | |
52 | static void x_own_selection P_ ((Lisp_Object, Lisp_Object)); | |
5109c8dd | 53 | static Lisp_Object x_get_local_selection P_ ((Lisp_Object, Lisp_Object, int)); |
d9c0d4a3 GM |
54 | static void x_decline_selection_request P_ ((struct input_event *)); |
55 | static Lisp_Object x_selection_request_lisp_error P_ ((Lisp_Object)); | |
56 | static Lisp_Object queue_selection_requests_unwind P_ ((Lisp_Object)); | |
57 | static Lisp_Object some_frame_on_display P_ ((struct x_display_info *)); | |
c525d842 | 58 | static Lisp_Object x_catch_errors_unwind P_ ((Lisp_Object)); |
d9c0d4a3 GM |
59 | static void x_reply_selection_request P_ ((struct input_event *, int, |
60 | unsigned char *, int, Atom)); | |
61 | static int waiting_for_other_props_on_window P_ ((Display *, Window)); | |
62 | static struct prop_location *expect_property_change P_ ((Display *, Window, | |
63 | Atom, int)); | |
64 | static void unexpect_property_change P_ ((struct prop_location *)); | |
65 | static Lisp_Object wait_for_property_change_unwind P_ ((Lisp_Object)); | |
66 | static void wait_for_property_change P_ ((struct prop_location *)); | |
3a42401d JD |
67 | static Lisp_Object x_get_foreign_selection P_ ((Lisp_Object, |
68 | Lisp_Object, | |
69 | Lisp_Object)); | |
d9c0d4a3 GM |
70 | static void x_get_window_property P_ ((Display *, Window, Atom, |
71 | unsigned char **, int *, | |
72 | Atom *, int *, unsigned long *, int)); | |
73 | static void receive_incremental_selection P_ ((Display *, Window, Atom, | |
74 | Lisp_Object, unsigned, | |
75 | unsigned char **, int *, | |
76 | Atom *, int *, unsigned long *)); | |
77 | static Lisp_Object x_get_window_property_as_lisp_data P_ ((Display *, | |
78 | Window, Atom, | |
79 | Lisp_Object, Atom)); | |
80 | static Lisp_Object selection_data_to_lisp_data P_ ((Display *, unsigned char *, | |
81 | int, Atom, int)); | |
82 | static void lisp_data_to_selection_data P_ ((Display *, Lisp_Object, | |
83 | unsigned char **, Atom *, | |
84 | unsigned *, int *, int *)); | |
85 | static Lisp_Object clean_local_selection_data P_ ((Lisp_Object)); | |
86 | static void initialize_cut_buffers P_ ((Display *, Window)); | |
87 | ||
88 | ||
89 | /* Printing traces to stderr. */ | |
90 | ||
91 | #ifdef TRACE_SELECTION | |
92 | #define TRACE0(fmt) \ | |
93 | fprintf (stderr, "%d: " fmt "\n", getpid ()) | |
94 | #define TRACE1(fmt, a0) \ | |
95 | fprintf (stderr, "%d: " fmt "\n", getpid (), a0) | |
96 | #define TRACE2(fmt, a0, a1) \ | |
97 | fprintf (stderr, "%d: " fmt "\n", getpid (), a0, a1) | |
9c3ad9e1 JD |
98 | #define TRACE3(fmt, a0, a1, a2) \ |
99 | fprintf (stderr, "%d: " fmt "\n", getpid (), a0, a1, a2) | |
d9c0d4a3 GM |
100 | #else |
101 | #define TRACE0(fmt) (void) 0 | |
102 | #define TRACE1(fmt, a0) (void) 0 | |
103 | #define TRACE2(fmt, a0, a1) (void) 0 | |
9c3ad9e1 | 104 | #define TRACE3(fmt, a0, a1) (void) 0 |
d9c0d4a3 GM |
105 | #endif |
106 | ||
107 | ||
ede4db72 RS |
108 | #define CUT_BUFFER_SUPPORT |
109 | ||
ede4db72 RS |
110 | Lisp_Object QPRIMARY, QSECONDARY, QSTRING, QINTEGER, QCLIPBOARD, QTIMESTAMP, |
111 | QTEXT, QDELETE, QMULTIPLE, QINCR, QEMACS_TMP, QTARGETS, QATOM, QNULL, | |
112 | QATOM_PAIR; | |
113 | ||
e6c7c988 | 114 | Lisp_Object QCOMPOUND_TEXT; /* This is a type of selection. */ |
5109c8dd | 115 | Lisp_Object QUTF8_STRING; /* This is a type of selection. */ |
e6c7c988 | 116 | |
5a79ea57 | 117 | Lisp_Object Qcompound_text_with_extensions; |
fbbe0ace | 118 | |
ede4db72 RS |
119 | #ifdef CUT_BUFFER_SUPPORT |
120 | Lisp_Object QCUT_BUFFER0, QCUT_BUFFER1, QCUT_BUFFER2, QCUT_BUFFER3, | |
121 | QCUT_BUFFER4, QCUT_BUFFER5, QCUT_BUFFER6, QCUT_BUFFER7; | |
122 | #endif | |
123 | ||
c917a8de SM |
124 | static Lisp_Object Vx_lost_selection_functions; |
125 | static Lisp_Object Vx_sent_selection_functions; | |
2584c9ec KH |
126 | /* Coding system for communicating with other X clients via cutbuffer, |
127 | selection, and clipboard. */ | |
93e4ce1b | 128 | static Lisp_Object Vselection_coding_system; |
ede4db72 | 129 | |
16cd5029 KH |
130 | /* Coding system for the next communicating with other X clients. */ |
131 | static Lisp_Object Vnext_selection_coding_system; | |
132 | ||
e57ad4d8 KH |
133 | static Lisp_Object Qforeign_selection; |
134 | ||
ede4db72 RS |
135 | /* If this is a smaller number than the max-request-size of the display, |
136 | emacs will use INCR selection transfer when the selection is larger | |
137 | than this. The max-request-size is usually around 64k, so if you want | |
1b65481e | 138 | emacs to use incremental selection transfers when the selection is |
ede4db72 | 139 | smaller than that, set this. I added this mostly for debugging the |
8f4f023f | 140 | incremental transfer stuff, but it might improve server performance. */ |
ede4db72 RS |
141 | #define MAX_SELECTION_QUANTUM 0xFFFFFF |
142 | ||
c3498e64 JB |
143 | #ifdef HAVE_X11R4 |
144 | #define SELECTION_QUANTUM(dpy) ((XMaxRequestSize(dpy) << 2) - 100) | |
145 | #else | |
146 | #define SELECTION_QUANTUM(dpy) (((dpy)->max_request_size << 2) - 100) | |
147 | #endif | |
ede4db72 | 148 | |
7da64e5c | 149 | /* The timestamp of the last input event Emacs received from the X server. */ |
29674445 KH |
150 | /* Defined in keyboard.c. */ |
151 | extern unsigned long last_event_timestamp; | |
ede4db72 RS |
152 | |
153 | /* This is an association list whose elements are of the form | |
118bd841 RS |
154 | ( SELECTION-NAME SELECTION-VALUE SELECTION-TIMESTAMP FRAME) |
155 | SELECTION-NAME is a lisp symbol, whose name is the name of an X Atom. | |
156 | SELECTION-VALUE is the value that emacs owns for that selection. | |
ede4db72 | 157 | It may be any kind of Lisp object. |
118bd841 | 158 | SELECTION-TIMESTAMP is the time at which emacs began owning this selection, |
ede4db72 | 159 | as a cons of two 16-bit numbers (making a 32 bit time.) |
118bd841 RS |
160 | FRAME is the frame for which we made the selection. |
161 | If there is an entry in this alist, then it can be assumed that Emacs owns | |
ede4db72 RS |
162 | that selection. |
163 | The only (eq) parts of this list that are visible from Lisp are the | |
8f4f023f RS |
164 | selection-values. */ |
165 | static Lisp_Object Vselection_alist; | |
ede4db72 RS |
166 | |
167 | /* This is an alist whose CARs are selection-types (whose names are the same | |
168 | as the names of X Atoms) and whose CDRs are the names of Lisp functions to | |
1b65481e | 169 | call to convert the given Emacs selection value to a string representing |
ede4db72 | 170 | the given selection type. This is for Lisp-level extension of the emacs |
8f4f023f RS |
171 | selection handling. */ |
172 | static Lisp_Object Vselection_converter_alist; | |
ede4db72 RS |
173 | |
174 | /* If the selection owner takes too long to reply to a selection request, | |
8f4f023f | 175 | we give up on it. This is in milliseconds (0 = no timeout.) */ |
31ade731 | 176 | static EMACS_INT x_selection_timeout; |
ede4db72 | 177 | |
dd0fe424 KS |
178 | |
179 | \f | |
678b3958 KS |
180 | /* Define a queue to save up SELECTION_REQUEST_EVENT events for later |
181 | handling. */ | |
dd0fe424 KS |
182 | |
183 | struct selection_event_queue | |
184 | { | |
185 | struct input_event event; | |
186 | struct selection_event_queue *next; | |
187 | }; | |
188 | ||
189 | static struct selection_event_queue *selection_queue; | |
190 | ||
678b3958 | 191 | /* Nonzero means queue up SELECTION_REQUEST_EVENT events. */ |
dd0fe424 KS |
192 | |
193 | static int x_queue_selection_requests; | |
194 | ||
678b3958 | 195 | /* Queue up an SELECTION_REQUEST_EVENT *EVENT, to be processed later. */ |
dd0fe424 KS |
196 | |
197 | static void | |
198 | x_queue_event (event) | |
199 | struct input_event *event; | |
200 | { | |
201 | struct selection_event_queue *queue_tmp; | |
202 | ||
678b3958 KS |
203 | /* Don't queue repeated requests. |
204 | This only happens for large requests which uses the incremental protocol. */ | |
dd0fe424 KS |
205 | for (queue_tmp = selection_queue; queue_tmp; queue_tmp = queue_tmp->next) |
206 | { | |
207 | if (!bcmp (&queue_tmp->event, event, sizeof (*event))) | |
208 | { | |
678b3958 KS |
209 | TRACE1 ("DECLINE DUP SELECTION EVENT %08lx", (unsigned long)queue_tmp); |
210 | x_decline_selection_request (event); | |
dd0fe424 KS |
211 | return; |
212 | } | |
213 | } | |
214 | ||
215 | queue_tmp | |
216 | = (struct selection_event_queue *) xmalloc (sizeof (struct selection_event_queue)); | |
217 | ||
218 | if (queue_tmp != NULL) | |
219 | { | |
678b3958 | 220 | TRACE1 ("QUEUE SELECTION EVENT %08lx", (unsigned long)queue_tmp); |
dd0fe424 KS |
221 | queue_tmp->event = *event; |
222 | queue_tmp->next = selection_queue; | |
223 | selection_queue = queue_tmp; | |
224 | } | |
225 | } | |
226 | ||
678b3958 | 227 | /* Start queuing SELECTION_REQUEST_EVENT events. */ |
dd0fe424 KS |
228 | |
229 | static void | |
230 | x_start_queuing_selection_requests () | |
231 | { | |
232 | if (x_queue_selection_requests) | |
233 | abort (); | |
234 | ||
235 | x_queue_selection_requests++; | |
236 | TRACE1 ("x_start_queuing_selection_requests %d", x_queue_selection_requests); | |
237 | } | |
238 | ||
678b3958 | 239 | /* Stop queuing SELECTION_REQUEST_EVENT events. */ |
dd0fe424 KS |
240 | |
241 | static void | |
242 | x_stop_queuing_selection_requests () | |
243 | { | |
244 | TRACE1 ("x_stop_queuing_selection_requests %d", x_queue_selection_requests); | |
245 | --x_queue_selection_requests; | |
246 | ||
247 | /* Take all the queued events and put them back | |
248 | so that they get processed afresh. */ | |
249 | ||
250 | while (selection_queue != NULL) | |
251 | { | |
252 | struct selection_event_queue *queue_tmp = selection_queue; | |
678b3958 | 253 | TRACE1 ("RESTORE SELECTION EVENT %08lx", (unsigned long)queue_tmp); |
dd0fe424 KS |
254 | kbd_buffer_unget_event (&queue_tmp->event); |
255 | selection_queue = queue_tmp->next; | |
256 | xfree ((char *)queue_tmp); | |
257 | } | |
258 | } | |
259 | \f | |
260 | ||
1b65481e | 261 | /* This converts a Lisp symbol to a server Atom, avoiding a server |
ede4db72 RS |
262 | roundtrip whenever possible. */ |
263 | ||
264 | static Atom | |
5c3a351a RS |
265 | symbol_to_x_atom (dpyinfo, display, sym) |
266 | struct x_display_info *dpyinfo; | |
ede4db72 RS |
267 | Display *display; |
268 | Lisp_Object sym; | |
269 | { | |
270 | Atom val; | |
271 | if (NILP (sym)) return 0; | |
272 | if (EQ (sym, QPRIMARY)) return XA_PRIMARY; | |
273 | if (EQ (sym, QSECONDARY)) return XA_SECONDARY; | |
274 | if (EQ (sym, QSTRING)) return XA_STRING; | |
275 | if (EQ (sym, QINTEGER)) return XA_INTEGER; | |
276 | if (EQ (sym, QATOM)) return XA_ATOM; | |
5c3a351a RS |
277 | if (EQ (sym, QCLIPBOARD)) return dpyinfo->Xatom_CLIPBOARD; |
278 | if (EQ (sym, QTIMESTAMP)) return dpyinfo->Xatom_TIMESTAMP; | |
279 | if (EQ (sym, QTEXT)) return dpyinfo->Xatom_TEXT; | |
e6c7c988 | 280 | if (EQ (sym, QCOMPOUND_TEXT)) return dpyinfo->Xatom_COMPOUND_TEXT; |
5109c8dd | 281 | if (EQ (sym, QUTF8_STRING)) return dpyinfo->Xatom_UTF8_STRING; |
5c3a351a RS |
282 | if (EQ (sym, QDELETE)) return dpyinfo->Xatom_DELETE; |
283 | if (EQ (sym, QMULTIPLE)) return dpyinfo->Xatom_MULTIPLE; | |
284 | if (EQ (sym, QINCR)) return dpyinfo->Xatom_INCR; | |
285 | if (EQ (sym, QEMACS_TMP)) return dpyinfo->Xatom_EMACS_TMP; | |
286 | if (EQ (sym, QTARGETS)) return dpyinfo->Xatom_TARGETS; | |
287 | if (EQ (sym, QNULL)) return dpyinfo->Xatom_NULL; | |
ede4db72 RS |
288 | #ifdef CUT_BUFFER_SUPPORT |
289 | if (EQ (sym, QCUT_BUFFER0)) return XA_CUT_BUFFER0; | |
290 | if (EQ (sym, QCUT_BUFFER1)) return XA_CUT_BUFFER1; | |
291 | if (EQ (sym, QCUT_BUFFER2)) return XA_CUT_BUFFER2; | |
292 | if (EQ (sym, QCUT_BUFFER3)) return XA_CUT_BUFFER3; | |
293 | if (EQ (sym, QCUT_BUFFER4)) return XA_CUT_BUFFER4; | |
294 | if (EQ (sym, QCUT_BUFFER5)) return XA_CUT_BUFFER5; | |
295 | if (EQ (sym, QCUT_BUFFER6)) return XA_CUT_BUFFER6; | |
296 | if (EQ (sym, QCUT_BUFFER7)) return XA_CUT_BUFFER7; | |
297 | #endif | |
298 | if (!SYMBOLP (sym)) abort (); | |
299 | ||
d5db4077 | 300 | TRACE1 (" XInternAtom %s", (char *) SDATA (SYMBOL_NAME (sym))); |
ede4db72 | 301 | BLOCK_INPUT; |
d5db4077 | 302 | val = XInternAtom (display, (char *) SDATA (SYMBOL_NAME (sym)), False); |
ede4db72 RS |
303 | UNBLOCK_INPUT; |
304 | return val; | |
305 | } | |
306 | ||
307 | ||
308 | /* This converts a server Atom to a Lisp symbol, avoiding server roundtrips | |
309 | and calls to intern whenever possible. */ | |
310 | ||
311 | static Lisp_Object | |
d9c0d4a3 GM |
312 | x_atom_to_symbol (dpy, atom) |
313 | Display *dpy; | |
ede4db72 RS |
314 | Atom atom; |
315 | { | |
d9c0d4a3 | 316 | struct x_display_info *dpyinfo; |
ede4db72 RS |
317 | char *str; |
318 | Lisp_Object val; | |
1b65481e | 319 | |
d9c0d4a3 GM |
320 | if (! atom) |
321 | return Qnil; | |
1b65481e | 322 | |
7da64e5c RS |
323 | switch (atom) |
324 | { | |
325 | case XA_PRIMARY: | |
326 | return QPRIMARY; | |
327 | case XA_SECONDARY: | |
328 | return QSECONDARY; | |
329 | case XA_STRING: | |
330 | return QSTRING; | |
331 | case XA_INTEGER: | |
332 | return QINTEGER; | |
333 | case XA_ATOM: | |
334 | return QATOM; | |
ede4db72 | 335 | #ifdef CUT_BUFFER_SUPPORT |
7da64e5c RS |
336 | case XA_CUT_BUFFER0: |
337 | return QCUT_BUFFER0; | |
338 | case XA_CUT_BUFFER1: | |
339 | return QCUT_BUFFER1; | |
340 | case XA_CUT_BUFFER2: | |
341 | return QCUT_BUFFER2; | |
342 | case XA_CUT_BUFFER3: | |
343 | return QCUT_BUFFER3; | |
344 | case XA_CUT_BUFFER4: | |
345 | return QCUT_BUFFER4; | |
346 | case XA_CUT_BUFFER5: | |
347 | return QCUT_BUFFER5; | |
348 | case XA_CUT_BUFFER6: | |
349 | return QCUT_BUFFER6; | |
350 | case XA_CUT_BUFFER7: | |
351 | return QCUT_BUFFER7; | |
ede4db72 | 352 | #endif |
7da64e5c RS |
353 | } |
354 | ||
d9c0d4a3 | 355 | dpyinfo = x_display_info_for_display (dpy); |
5c3a351a | 356 | if (atom == dpyinfo->Xatom_CLIPBOARD) |
7da64e5c | 357 | return QCLIPBOARD; |
5c3a351a | 358 | if (atom == dpyinfo->Xatom_TIMESTAMP) |
7da64e5c | 359 | return QTIMESTAMP; |
5c3a351a | 360 | if (atom == dpyinfo->Xatom_TEXT) |
7da64e5c | 361 | return QTEXT; |
e6c7c988 KH |
362 | if (atom == dpyinfo->Xatom_COMPOUND_TEXT) |
363 | return QCOMPOUND_TEXT; | |
5109c8dd KH |
364 | if (atom == dpyinfo->Xatom_UTF8_STRING) |
365 | return QUTF8_STRING; | |
5c3a351a | 366 | if (atom == dpyinfo->Xatom_DELETE) |
7da64e5c | 367 | return QDELETE; |
5c3a351a | 368 | if (atom == dpyinfo->Xatom_MULTIPLE) |
7da64e5c | 369 | return QMULTIPLE; |
5c3a351a | 370 | if (atom == dpyinfo->Xatom_INCR) |
7da64e5c | 371 | return QINCR; |
5c3a351a | 372 | if (atom == dpyinfo->Xatom_EMACS_TMP) |
7da64e5c | 373 | return QEMACS_TMP; |
5c3a351a | 374 | if (atom == dpyinfo->Xatom_TARGETS) |
7da64e5c | 375 | return QTARGETS; |
5c3a351a | 376 | if (atom == dpyinfo->Xatom_NULL) |
7da64e5c | 377 | return QNULL; |
ede4db72 RS |
378 | |
379 | BLOCK_INPUT; | |
d9c0d4a3 | 380 | str = XGetAtomName (dpy, atom); |
ede4db72 | 381 | UNBLOCK_INPUT; |
d9c0d4a3 | 382 | TRACE1 ("XGetAtomName --> %s", str); |
ede4db72 RS |
383 | if (! str) return Qnil; |
384 | val = intern (str); | |
385 | BLOCK_INPUT; | |
0158abbc | 386 | /* This was allocated by Xlib, so use XFree. */ |
ede4db72 RS |
387 | XFree (str); |
388 | UNBLOCK_INPUT; | |
389 | return val; | |
390 | } | |
8a89415e | 391 | \f |
ede4db72 | 392 | /* Do protocol to assert ourself as a selection owner. |
1b65481e | 393 | Update the Vselection_alist so that we can reply to later requests for |
ede4db72 RS |
394 | our selection. */ |
395 | ||
396 | static void | |
397 | x_own_selection (selection_name, selection_value) | |
398 | Lisp_Object selection_name, selection_value; | |
399 | { | |
378c33ca GM |
400 | struct frame *sf = SELECTED_FRAME (); |
401 | Window selecting_window = FRAME_X_WINDOW (sf); | |
402 | Display *display = FRAME_X_DISPLAY (sf); | |
7da64e5c | 403 | Time time = last_event_timestamp; |
ede4db72 | 404 | Atom selection_atom; |
378c33ca | 405 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (sf); |
ede4db72 | 406 | |
b7826503 | 407 | CHECK_SYMBOL (selection_name); |
5c3a351a | 408 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection_name); |
ede4db72 RS |
409 | |
410 | BLOCK_INPUT; | |
9ba8e10d | 411 | x_catch_errors (display); |
ede4db72 | 412 | XSetSelectionOwner (display, selection_atom, selecting_window, time); |
a7b24d46 | 413 | x_check_errors (display, "Can't set selection: %s"); |
4545fa20 | 414 | x_uncatch_errors (); |
ede4db72 RS |
415 | UNBLOCK_INPUT; |
416 | ||
417 | /* Now update the local cache */ | |
418 | { | |
419 | Lisp_Object selection_time; | |
420 | Lisp_Object selection_data; | |
421 | Lisp_Object prev_value; | |
422 | ||
423 | selection_time = long_to_cons ((unsigned long) time); | |
424 | selection_data = Fcons (selection_name, | |
425 | Fcons (selection_value, | |
118bd841 | 426 | Fcons (selection_time, |
378c33ca | 427 | Fcons (selected_frame, Qnil)))); |
ede4db72 RS |
428 | prev_value = assq_no_quit (selection_name, Vselection_alist); |
429 | ||
430 | Vselection_alist = Fcons (selection_data, Vselection_alist); | |
431 | ||
432 | /* If we already owned the selection, remove the old selection data. | |
433 | Perhaps we should destructively modify it instead. | |
434 | Don't use Fdelq as that may QUIT. */ | |
435 | if (!NILP (prev_value)) | |
436 | { | |
437 | Lisp_Object rest; /* we know it's not the CAR, so it's easy. */ | |
438 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) | |
8e713be6 | 439 | if (EQ (prev_value, Fcar (XCDR (rest)))) |
ede4db72 | 440 | { |
f3fbd155 | 441 | XSETCDR (rest, Fcdr (XCDR (rest))); |
ede4db72 RS |
442 | break; |
443 | } | |
444 | } | |
445 | } | |
446 | } | |
447 | \f | |
448 | /* Given a selection-name and desired type, look up our local copy of | |
449 | the selection value and convert it to the type. | |
450 | The value is nil or a string. | |
5109c8dd KH |
451 | This function is used both for remote requests (LOCAL_REQUEST is zero) |
452 | and for local x-get-selection-internal (LOCAL_REQUEST is nonzero). | |
ede4db72 RS |
453 | |
454 | This calls random Lisp code, and may signal or gc. */ | |
455 | ||
456 | static Lisp_Object | |
5109c8dd | 457 | x_get_local_selection (selection_symbol, target_type, local_request) |
ede4db72 | 458 | Lisp_Object selection_symbol, target_type; |
5109c8dd | 459 | int local_request; |
ede4db72 RS |
460 | { |
461 | Lisp_Object local_value; | |
462 | Lisp_Object handler_fn, value, type, check; | |
463 | int count; | |
464 | ||
465 | local_value = assq_no_quit (selection_symbol, Vselection_alist); | |
466 | ||
467 | if (NILP (local_value)) return Qnil; | |
468 | ||
469 | /* TIMESTAMP and MULTIPLE are special cases 'cause that's easiest. */ | |
470 | if (EQ (target_type, QTIMESTAMP)) | |
471 | { | |
472 | handler_fn = Qnil; | |
8e713be6 | 473 | value = XCAR (XCDR (XCDR (local_value))); |
ede4db72 RS |
474 | } |
475 | #if 0 | |
476 | else if (EQ (target_type, QDELETE)) | |
477 | { | |
478 | handler_fn = Qnil; | |
479 | Fx_disown_selection_internal | |
480 | (selection_symbol, | |
8e713be6 | 481 | XCAR (XCDR (XCDR (local_value)))); |
ede4db72 RS |
482 | value = QNULL; |
483 | } | |
484 | #endif | |
485 | ||
486 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
487 | else if (CONSP (target_type) | |
8e713be6 | 488 | && XCAR (target_type) == QMULTIPLE) |
ede4db72 | 489 | { |
9d2d1dd8 KH |
490 | Lisp_Object pairs; |
491 | int size; | |
ede4db72 | 492 | int i; |
8e713be6 | 493 | pairs = XCDR (target_type); |
9d2d1dd8 | 494 | size = XVECTOR (pairs)->size; |
ede4db72 RS |
495 | /* If the target is MULTIPLE, then target_type looks like |
496 | (MULTIPLE . [[SELECTION1 TARGET1] [SELECTION2 TARGET2] ... ]) | |
497 | We modify the second element of each pair in the vector and | |
498 | return it as [[SELECTION1 <value1>] [SELECTION2 <value2>] ... ] | |
499 | */ | |
500 | for (i = 0; i < size; i++) | |
501 | { | |
9d2d1dd8 KH |
502 | Lisp_Object pair; |
503 | pair = XVECTOR (pairs)->contents [i]; | |
ede4db72 RS |
504 | XVECTOR (pair)->contents [1] |
505 | = x_get_local_selection (XVECTOR (pair)->contents [0], | |
5109c8dd KH |
506 | XVECTOR (pair)->contents [1], |
507 | local_request); | |
ede4db72 RS |
508 | } |
509 | return pairs; | |
510 | } | |
511 | #endif | |
512 | else | |
513 | { | |
514 | /* Don't allow a quit within the converter. | |
515 | When the user types C-g, he would be surprised | |
516 | if by luck it came during a converter. */ | |
aed13378 | 517 | count = SPECPDL_INDEX (); |
ede4db72 RS |
518 | specbind (Qinhibit_quit, Qt); |
519 | ||
b7826503 | 520 | CHECK_SYMBOL (target_type); |
ede4db72 | 521 | handler_fn = Fcdr (Fassq (target_type, Vselection_converter_alist)); |
4f06187f RS |
522 | /* gcpro is not needed here since nothing but HANDLER_FN |
523 | is live, and that ought to be a symbol. */ | |
524 | ||
1eb4d468 RS |
525 | if (!NILP (handler_fn)) |
526 | value = call3 (handler_fn, | |
5109c8dd | 527 | selection_symbol, (local_request ? Qnil : target_type), |
8e713be6 | 528 | XCAR (XCDR (local_value))); |
1eb4d468 RS |
529 | else |
530 | value = Qnil; | |
ede4db72 RS |
531 | unbind_to (count, Qnil); |
532 | } | |
533 | ||
534 | /* Make sure this value is of a type that we could transmit | |
535 | to another X client. */ | |
a87ed99c | 536 | |
ede4db72 RS |
537 | check = value; |
538 | if (CONSP (value) | |
8e713be6 KR |
539 | && SYMBOLP (XCAR (value))) |
540 | type = XCAR (value), | |
541 | check = XCDR (value); | |
1b65481e | 542 | |
ede4db72 RS |
543 | if (STRINGP (check) |
544 | || VECTORP (check) | |
545 | || SYMBOLP (check) | |
7da64e5c | 546 | || INTEGERP (check) |
ede4db72 RS |
547 | || NILP (value)) |
548 | return value; | |
a87ed99c | 549 | /* Check for a value that cons_to_long could handle. */ |
ede4db72 | 550 | else if (CONSP (check) |
8e713be6 KR |
551 | && INTEGERP (XCAR (check)) |
552 | && (INTEGERP (XCDR (check)) | |
ede4db72 | 553 | || |
8e713be6 KR |
554 | (CONSP (XCDR (check)) |
555 | && INTEGERP (XCAR (XCDR (check))) | |
556 | && NILP (XCDR (XCDR (check)))))) | |
ede4db72 | 557 | return value; |
4d30ce50 KS |
558 | |
559 | signal_error ("Invalid data returned by selection-conversion function", | |
560 | list2 (handler_fn, value)); | |
ede4db72 RS |
561 | } |
562 | \f | |
563 | /* Subroutines of x_reply_selection_request. */ | |
564 | ||
5d0ba25b | 565 | /* Send a SelectionNotify event to the requestor with property=None, |
ede4db72 RS |
566 | meaning we were unable to do what they wanted. */ |
567 | ||
568 | static void | |
569 | x_decline_selection_request (event) | |
570 | struct input_event *event; | |
571 | { | |
572 | XSelectionEvent reply; | |
1b65481e | 573 | |
ede4db72 RS |
574 | reply.type = SelectionNotify; |
575 | reply.display = SELECTION_EVENT_DISPLAY (event); | |
5d0ba25b | 576 | reply.requestor = SELECTION_EVENT_REQUESTOR (event); |
ede4db72 RS |
577 | reply.selection = SELECTION_EVENT_SELECTION (event); |
578 | reply.time = SELECTION_EVENT_TIME (event); | |
579 | reply.target = SELECTION_EVENT_TARGET (event); | |
580 | reply.property = None; | |
581 | ||
d9c0d4a3 GM |
582 | /* The reason for the error may be that the receiver has |
583 | died in the meantime. Handle that case. */ | |
ede4db72 | 584 | BLOCK_INPUT; |
9ba8e10d | 585 | x_catch_errors (reply.display); |
d9c0d4a3 | 586 | XSendEvent (reply.display, reply.requestor, False, 0L, (XEvent *) &reply); |
5c3a351a | 587 | XFlush (reply.display); |
4545fa20 | 588 | x_uncatch_errors (); |
ede4db72 RS |
589 | UNBLOCK_INPUT; |
590 | } | |
591 | ||
592 | /* This is the selection request currently being processed. | |
593 | It is set to zero when the request is fully processed. */ | |
594 | static struct input_event *x_selection_current_request; | |
595 | ||
ca29f2b8 GM |
596 | /* Display info in x_selection_request. */ |
597 | ||
598 | static struct x_display_info *selection_request_dpyinfo; | |
599 | ||
ede4db72 | 600 | /* Used as an unwind-protect clause so that, if a selection-converter signals |
2a1a4c9d | 601 | an error, we tell the requester that we were unable to do what they wanted |
ede4db72 RS |
602 | before we throw to top-level or go into the debugger or whatever. */ |
603 | ||
604 | static Lisp_Object | |
605 | x_selection_request_lisp_error (ignore) | |
606 | Lisp_Object ignore; | |
607 | { | |
ca29f2b8 GM |
608 | if (x_selection_current_request != 0 |
609 | && selection_request_dpyinfo->display) | |
ede4db72 RS |
610 | x_decline_selection_request (x_selection_current_request); |
611 | return Qnil; | |
612 | } | |
c525d842 CY |
613 | |
614 | static Lisp_Object | |
615 | x_catch_errors_unwind (dummy) | |
616 | Lisp_Object dummy; | |
617 | { | |
618 | BLOCK_INPUT; | |
619 | x_uncatch_errors (); | |
620 | UNBLOCK_INPUT; | |
6f10509c | 621 | return Qnil; |
c525d842 | 622 | } |
ede4db72 | 623 | \f |
d1f21a66 RS |
624 | |
625 | /* This stuff is so that INCR selections are reentrant (that is, so we can | |
626 | be servicing multiple INCR selection requests simultaneously.) I haven't | |
627 | actually tested that yet. */ | |
628 | ||
629 | /* Keep a list of the property changes that are awaited. */ | |
630 | ||
631 | struct prop_location | |
632 | { | |
633 | int identifier; | |
634 | Display *display; | |
635 | Window window; | |
636 | Atom property; | |
637 | int desired_state; | |
638 | int arrived; | |
639 | struct prop_location *next; | |
640 | }; | |
641 | ||
642 | static struct prop_location *expect_property_change (); | |
643 | static void wait_for_property_change (); | |
644 | static void unexpect_property_change (); | |
645 | static int waiting_for_other_props_on_window (); | |
646 | ||
647 | static int prop_location_identifier; | |
648 | ||
649 | static Lisp_Object property_change_reply; | |
650 | ||
651 | static struct prop_location *property_change_reply_object; | |
652 | ||
653 | static struct prop_location *property_change_wait_list; | |
55b2d45d RS |
654 | |
655 | static Lisp_Object | |
dd0fe424 KS |
656 | queue_selection_requests_unwind (tem) |
657 | Lisp_Object tem; | |
55b2d45d | 658 | { |
dd0fe424 | 659 | x_stop_queuing_selection_requests (); |
ab552306 | 660 | return Qnil; |
55b2d45d RS |
661 | } |
662 | ||
663 | /* Return some frame whose display info is DPYINFO. | |
664 | Return nil if there is none. */ | |
665 | ||
666 | static Lisp_Object | |
667 | some_frame_on_display (dpyinfo) | |
668 | struct x_display_info *dpyinfo; | |
669 | { | |
670 | Lisp_Object list, frame; | |
671 | ||
672 | FOR_EACH_FRAME (list, frame) | |
673 | { | |
674 | if (FRAME_X_DISPLAY_INFO (XFRAME (frame)) == dpyinfo) | |
675 | return frame; | |
676 | } | |
677 | ||
678 | return Qnil; | |
679 | } | |
d1f21a66 | 680 | \f |
ede4db72 RS |
681 | /* Send the reply to a selection request event EVENT. |
682 | TYPE is the type of selection data requested. | |
683 | DATA and SIZE describe the data to send, already converted. | |
684 | FORMAT is the unit-size (in bits) of the data to be transmitted. */ | |
685 | ||
686 | static void | |
687 | x_reply_selection_request (event, format, data, size, type) | |
688 | struct input_event *event; | |
689 | int format, size; | |
690 | unsigned char *data; | |
691 | Atom type; | |
692 | { | |
693 | XSelectionEvent reply; | |
694 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
5d0ba25b | 695 | Window window = SELECTION_EVENT_REQUESTOR (event); |
ede4db72 RS |
696 | int bytes_remaining; |
697 | int format_bytes = format/8; | |
698 | int max_bytes = SELECTION_QUANTUM (display); | |
5c3a351a | 699 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
9ba8e10d | 700 | int count = SPECPDL_INDEX (); |
ede4db72 RS |
701 | |
702 | if (max_bytes > MAX_SELECTION_QUANTUM) | |
703 | max_bytes = MAX_SELECTION_QUANTUM; | |
704 | ||
705 | reply.type = SelectionNotify; | |
706 | reply.display = display; | |
5d0ba25b | 707 | reply.requestor = window; |
ede4db72 RS |
708 | reply.selection = SELECTION_EVENT_SELECTION (event); |
709 | reply.time = SELECTION_EVENT_TIME (event); | |
710 | reply.target = SELECTION_EVENT_TARGET (event); | |
711 | reply.property = SELECTION_EVENT_PROPERTY (event); | |
712 | if (reply.property == None) | |
713 | reply.property = reply.target; | |
714 | ||
afe1529d | 715 | BLOCK_INPUT; |
c525d842 CY |
716 | /* The protected block contains wait_for_property_change, which can |
717 | run random lisp code (process handlers) or signal. Therefore, we | |
718 | put the x_uncatch_errors call in an unwind. */ | |
719 | record_unwind_protect (x_catch_errors_unwind, Qnil); | |
9ba8e10d | 720 | x_catch_errors (display); |
ede4db72 | 721 | |
9c3ad9e1 JD |
722 | #ifdef TRACE_SELECTION |
723 | { | |
724 | static int cnt; | |
725 | char *sel = XGetAtomName (display, reply.selection); | |
726 | char *tgt = XGetAtomName (display, reply.target); | |
727 | TRACE3 ("%s, target %s (%d)", sel, tgt, ++cnt); | |
728 | if (sel) XFree (sel); | |
729 | if (tgt) XFree (tgt); | |
730 | } | |
731 | #endif /* TRACE_SELECTION */ | |
732 | ||
ede4db72 RS |
733 | /* Store the data on the requested property. |
734 | If the selection is large, only store the first N bytes of it. | |
735 | */ | |
736 | bytes_remaining = size * format_bytes; | |
737 | if (bytes_remaining <= max_bytes) | |
738 | { | |
739 | /* Send all the data at once, with minimal handshaking. */ | |
d9c0d4a3 | 740 | TRACE1 ("Sending all %d bytes", bytes_remaining); |
ede4db72 RS |
741 | XChangeProperty (display, window, reply.property, type, format, |
742 | PropModeReplace, data, size); | |
743 | /* At this point, the selection was successfully stored; ack it. */ | |
2f65feb6 | 744 | XSendEvent (display, window, False, 0L, (XEvent *) &reply); |
ede4db72 RS |
745 | } |
746 | else | |
747 | { | |
748 | /* Send an INCR selection. */ | |
d1f21a66 | 749 | struct prop_location *wait_object; |
afe1529d | 750 | int had_errors; |
55b2d45d | 751 | Lisp_Object frame; |
ede4db72 | 752 | |
55b2d45d RS |
753 | frame = some_frame_on_display (dpyinfo); |
754 | ||
755 | /* If the display no longer has frames, we can't expect | |
756 | to get many more selection requests from it, so don't | |
757 | bother trying to queue them. */ | |
758 | if (!NILP (frame)) | |
759 | { | |
dd0fe424 | 760 | x_start_queuing_selection_requests (); |
55b2d45d RS |
761 | |
762 | record_unwind_protect (queue_selection_requests_unwind, | |
dd0fe424 | 763 | Qnil); |
55b2d45d | 764 | } |
2f65feb6 | 765 | |
19126e11 | 766 | if (x_window_to_frame (dpyinfo, window)) /* #### debug */ |
606140dd | 767 | error ("Attempt to transfer an INCR to ourself!"); |
1b65481e | 768 | |
d9c0d4a3 GM |
769 | TRACE2 ("Start sending %d bytes incrementally (%s)", |
770 | bytes_remaining, XGetAtomName (display, reply.property)); | |
d1f21a66 RS |
771 | wait_object = expect_property_change (display, window, reply.property, |
772 | PropertyDelete); | |
ede4db72 | 773 | |
d9c0d4a3 GM |
774 | TRACE1 ("Set %s to number of bytes to send", |
775 | XGetAtomName (display, reply.property)); | |
e22cf39c JD |
776 | { |
777 | /* XChangeProperty expects an array of long even if long is more than | |
778 | 32 bits. */ | |
779 | long value[1]; | |
780 | ||
781 | value[0] = bytes_remaining; | |
782 | XChangeProperty (display, window, reply.property, dpyinfo->Xatom_INCR, | |
783 | 32, PropModeReplace, | |
784 | (unsigned char *) value, 1); | |
785 | } | |
786 | ||
ede4db72 | 787 | XSelectInput (display, window, PropertyChangeMask); |
1b65481e | 788 | |
ede4db72 | 789 | /* Tell 'em the INCR data is there... */ |
d9c0d4a3 | 790 | TRACE0 ("Send SelectionNotify event"); |
55b2d45d | 791 | XSendEvent (display, window, False, 0L, (XEvent *) &reply); |
5c3a351a | 792 | XFlush (display); |
afe1529d RS |
793 | |
794 | had_errors = x_had_errors_p (display); | |
2f65feb6 | 795 | UNBLOCK_INPUT; |
ede4db72 | 796 | |
2a1a4c9d | 797 | /* First, wait for the requester to ack by deleting the property. |
ede4db72 | 798 | This can run random lisp code (process handlers) or signal. */ |
afe1529d | 799 | if (! had_errors) |
d9c0d4a3 GM |
800 | { |
801 | TRACE1 ("Waiting for ACK (deletion of %s)", | |
802 | XGetAtomName (display, reply.property)); | |
803 | wait_for_property_change (wait_object); | |
804 | } | |
dd0fe424 KS |
805 | else |
806 | unexpect_property_change (wait_object); | |
ede4db72 | 807 | |
d9c0d4a3 | 808 | TRACE0 ("Got ACK"); |
ede4db72 RS |
809 | while (bytes_remaining) |
810 | { | |
e22cf39c JD |
811 | int i = ((bytes_remaining < max_bytes) |
812 | ? bytes_remaining | |
813 | : max_bytes); | |
2f65feb6 RS |
814 | |
815 | BLOCK_INPUT; | |
816 | ||
d1f21a66 RS |
817 | wait_object |
818 | = expect_property_change (display, window, reply.property, | |
819 | PropertyDelete); | |
d9c0d4a3 GM |
820 | |
821 | TRACE1 ("Sending increment of %d bytes", i); | |
822 | TRACE1 ("Set %s to increment data", | |
823 | XGetAtomName (display, reply.property)); | |
1b65481e | 824 | |
ede4db72 RS |
825 | /* Append the next chunk of data to the property. */ |
826 | XChangeProperty (display, window, reply.property, type, format, | |
827 | PropModeAppend, data, i / format_bytes); | |
828 | bytes_remaining -= i; | |
829 | data += i; | |
5c3a351a | 830 | XFlush (display); |
afe1529d | 831 | had_errors = x_had_errors_p (display); |
2f65feb6 | 832 | UNBLOCK_INPUT; |
ede4db72 | 833 | |
afe1529d RS |
834 | if (had_errors) |
835 | break; | |
836 | ||
2a1a4c9d | 837 | /* Now wait for the requester to ack this chunk by deleting the |
d9c0d4a3 GM |
838 | property. This can run random lisp code or signal. */ |
839 | TRACE1 ("Waiting for increment ACK (deletion of %s)", | |
840 | XGetAtomName (display, reply.property)); | |
d1f21a66 | 841 | wait_for_property_change (wait_object); |
ede4db72 | 842 | } |
1b65481e | 843 | |
d9c0d4a3 GM |
844 | /* Now write a zero-length chunk to the property to tell the |
845 | requester that we're done. */ | |
2f65feb6 | 846 | BLOCK_INPUT; |
ede4db72 RS |
847 | if (! waiting_for_other_props_on_window (display, window)) |
848 | XSelectInput (display, window, 0L); | |
849 | ||
d9c0d4a3 GM |
850 | TRACE1 ("Set %s to a 0-length chunk to indicate EOF", |
851 | XGetAtomName (display, reply.property)); | |
ede4db72 RS |
852 | XChangeProperty (display, window, reply.property, type, format, |
853 | PropModeReplace, data, 0); | |
d9c0d4a3 | 854 | TRACE0 ("Done sending incrementally"); |
ede4db72 | 855 | } |
afe1529d | 856 | |
ceabd272 | 857 | /* rms, 2003-01-03: I think I have fixed this bug. */ |
47a6ac17 GM |
858 | /* The window we're communicating with may have been deleted |
859 | in the meantime (that's a real situation from a bug report). | |
860 | In this case, there may be events in the event queue still | |
861 | refering to the deleted window, and we'll get a BadWindow error | |
862 | in XTread_socket when processing the events. I don't have | |
863 | an idea how to fix that. gerd, 2001-01-98. */ | |
844fc085 JD |
864 | /* 2004-09-10: XSync and UNBLOCK so that possible protocol errors are |
865 | delivered before uncatch errors. */ | |
866 | XSync (display, False); | |
afe1529d | 867 | UNBLOCK_INPUT; |
0608b1a0 JD |
868 | |
869 | /* GTK queues events in addition to the queue in Xlib. So we | |
870 | UNBLOCK to enter the event loop and get possible errors delivered, | |
871 | and then BLOCK again because x_uncatch_errors requires it. */ | |
872 | BLOCK_INPUT; | |
c525d842 | 873 | /* This calls x_uncatch_errors. */ |
9ba8e10d | 874 | unbind_to (count, Qnil); |
0608b1a0 | 875 | UNBLOCK_INPUT; |
ede4db72 RS |
876 | } |
877 | \f | |
878 | /* Handle a SelectionRequest event EVENT. | |
879 | This is called from keyboard.c when such an event is found in the queue. */ | |
880 | ||
dd0fe424 | 881 | static void |
ede4db72 RS |
882 | x_handle_selection_request (event) |
883 | struct input_event *event; | |
884 | { | |
885 | struct gcpro gcpro1, gcpro2, gcpro3; | |
9d2d1dd8 | 886 | Lisp_Object local_selection_data; |
ede4db72 | 887 | Lisp_Object selection_symbol; |
9d2d1dd8 KH |
888 | Lisp_Object target_symbol; |
889 | Lisp_Object converted_selection; | |
ede4db72 | 890 | Time local_selection_time; |
9d2d1dd8 | 891 | Lisp_Object successful_p; |
ede4db72 | 892 | int count; |
5c3a351a RS |
893 | struct x_display_info *dpyinfo |
894 | = x_display_info_for_display (SELECTION_EVENT_DISPLAY (event)); | |
ede4db72 | 895 | |
678b3958 KS |
896 | TRACE2 ("x_handle_selection_request, from=0x%08lx time=%lu", |
897 | (unsigned long) SELECTION_EVENT_REQUESTOR (event), | |
898 | (unsigned long) SELECTION_EVENT_TIME (event)); | |
dd0fe424 | 899 | |
9d2d1dd8 KH |
900 | local_selection_data = Qnil; |
901 | target_symbol = Qnil; | |
902 | converted_selection = Qnil; | |
903 | successful_p = Qnil; | |
904 | ||
ede4db72 RS |
905 | GCPRO3 (local_selection_data, converted_selection, target_symbol); |
906 | ||
d9c0d4a3 | 907 | selection_symbol = x_atom_to_symbol (SELECTION_EVENT_DISPLAY (event), |
ede4db72 RS |
908 | SELECTION_EVENT_SELECTION (event)); |
909 | ||
910 | local_selection_data = assq_no_quit (selection_symbol, Vselection_alist); | |
ede4db72 RS |
911 | |
912 | if (NILP (local_selection_data)) | |
913 | { | |
914 | /* Someone asked for the selection, but we don't have it any more. | |
915 | */ | |
916 | x_decline_selection_request (event); | |
917 | goto DONE; | |
918 | } | |
919 | ||
920 | local_selection_time = (Time) | |
8e713be6 | 921 | cons_to_long (XCAR (XCDR (XCDR (local_selection_data)))); |
ede4db72 RS |
922 | |
923 | if (SELECTION_EVENT_TIME (event) != CurrentTime | |
7da64e5c | 924 | && local_selection_time > SELECTION_EVENT_TIME (event)) |
ede4db72 RS |
925 | { |
926 | /* Someone asked for the selection, and we have one, but not the one | |
927 | they're looking for. | |
928 | */ | |
929 | x_decline_selection_request (event); | |
930 | goto DONE; | |
931 | } | |
932 | ||
ede4db72 | 933 | x_selection_current_request = event; |
331379bf | 934 | count = SPECPDL_INDEX (); |
ca29f2b8 | 935 | selection_request_dpyinfo = dpyinfo; |
ede4db72 RS |
936 | record_unwind_protect (x_selection_request_lisp_error, Qnil); |
937 | ||
d9c0d4a3 | 938 | target_symbol = x_atom_to_symbol (SELECTION_EVENT_DISPLAY (event), |
ede4db72 RS |
939 | SELECTION_EVENT_TARGET (event)); |
940 | ||
941 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
942 | if (EQ (target_symbol, QMULTIPLE)) | |
943 | target_symbol = fetch_multiple_target (event); | |
944 | #endif | |
1b65481e | 945 | |
ede4db72 | 946 | /* Convert lisp objects back into binary data */ |
1b65481e | 947 | |
ede4db72 | 948 | converted_selection |
5109c8dd | 949 | = x_get_local_selection (selection_symbol, target_symbol, 0); |
1b65481e | 950 | |
ede4db72 RS |
951 | if (! NILP (converted_selection)) |
952 | { | |
953 | unsigned char *data; | |
954 | unsigned int size; | |
955 | int format; | |
956 | Atom type; | |
aca39f42 RS |
957 | int nofree; |
958 | ||
2f65feb6 RS |
959 | lisp_data_to_selection_data (SELECTION_EVENT_DISPLAY (event), |
960 | converted_selection, | |
aca39f42 | 961 | &data, &type, &size, &format, &nofree); |
1b65481e | 962 | |
ede4db72 RS |
963 | x_reply_selection_request (event, format, data, size, type); |
964 | successful_p = Qt; | |
965 | ||
966 | /* Indicate we have successfully processed this event. */ | |
7da64e5c | 967 | x_selection_current_request = 0; |
ede4db72 | 968 | |
4feb31b2 | 969 | /* Use xfree, not XFree, because lisp_data_to_selection_data |
0158abbc | 970 | calls xmalloc itself. */ |
aca39f42 | 971 | if (!nofree) |
4feb31b2 | 972 | xfree (data); |
ede4db72 RS |
973 | } |
974 | unbind_to (count, Qnil); | |
975 | ||
976 | DONE: | |
977 | ||
ede4db72 RS |
978 | /* Let random lisp code notice that the selection has been asked for. */ |
979 | { | |
9d2d1dd8 | 980 | Lisp_Object rest; |
c917a8de | 981 | rest = Vx_sent_selection_functions; |
ede4db72 RS |
982 | if (!EQ (rest, Qunbound)) |
983 | for (; CONSP (rest); rest = Fcdr (rest)) | |
984 | call3 (Fcar (rest), selection_symbol, target_symbol, successful_p); | |
985 | } | |
4f06187f RS |
986 | |
987 | UNGCPRO; | |
ede4db72 RS |
988 | } |
989 | \f | |
e18e6130 | 990 | /* Handle a SelectionClear event EVENT, which indicates that some |
ede4db72 RS |
991 | client cleared out our previously asserted selection. |
992 | This is called from keyboard.c when such an event is found in the queue. */ | |
993 | ||
dd0fe424 | 994 | static void |
ede4db72 RS |
995 | x_handle_selection_clear (event) |
996 | struct input_event *event; | |
997 | { | |
998 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
999 | Atom selection = SELECTION_EVENT_SELECTION (event); | |
1000 | Time changed_owner_time = SELECTION_EVENT_TIME (event); | |
1b65481e | 1001 | |
ede4db72 RS |
1002 | Lisp_Object selection_symbol, local_selection_data; |
1003 | Time local_selection_time; | |
5c3a351a | 1004 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
e18e6130 RS |
1005 | struct x_display_info *t_dpyinfo; |
1006 | ||
dd0fe424 KS |
1007 | TRACE0 ("x_handle_selection_clear"); |
1008 | ||
e18e6130 RS |
1009 | /* If the new selection owner is also Emacs, |
1010 | don't clear the new selection. */ | |
1011 | BLOCK_INPUT; | |
1012 | /* Check each display on the same terminal, | |
1013 | to see if this Emacs job now owns the selection | |
1014 | through that display. */ | |
1015 | for (t_dpyinfo = x_display_list; t_dpyinfo; t_dpyinfo = t_dpyinfo->next) | |
1016 | if (t_dpyinfo->kboard == dpyinfo->kboard) | |
1017 | { | |
1018 | Window owner_window | |
1019 | = XGetSelectionOwner (t_dpyinfo->display, selection); | |
1020 | if (x_window_to_frame (t_dpyinfo, owner_window) != 0) | |
1021 | { | |
1022 | UNBLOCK_INPUT; | |
1023 | return; | |
1024 | } | |
1025 | } | |
1026 | UNBLOCK_INPUT; | |
ede4db72 | 1027 | |
d9c0d4a3 | 1028 | selection_symbol = x_atom_to_symbol (display, selection); |
ede4db72 RS |
1029 | |
1030 | local_selection_data = assq_no_quit (selection_symbol, Vselection_alist); | |
1031 | ||
1032 | /* Well, we already believe that we don't own it, so that's just fine. */ | |
1033 | if (NILP (local_selection_data)) return; | |
1034 | ||
1035 | local_selection_time = (Time) | |
8e713be6 | 1036 | cons_to_long (XCAR (XCDR (XCDR (local_selection_data)))); |
ede4db72 RS |
1037 | |
1038 | /* This SelectionClear is for a selection that we no longer own, so we can | |
1039 | disregard it. (That is, we have reasserted the selection since this | |
1040 | request was generated.) */ | |
1041 | ||
1042 | if (changed_owner_time != CurrentTime | |
1043 | && local_selection_time > changed_owner_time) | |
1044 | return; | |
1045 | ||
1046 | /* Otherwise, we're really honest and truly being told to drop it. | |
1047 | Don't use Fdelq as that may QUIT;. */ | |
1048 | ||
1049 | if (EQ (local_selection_data, Fcar (Vselection_alist))) | |
1050 | Vselection_alist = Fcdr (Vselection_alist); | |
1051 | else | |
1052 | { | |
1053 | Lisp_Object rest; | |
1054 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) | |
8e713be6 | 1055 | if (EQ (local_selection_data, Fcar (XCDR (rest)))) |
ede4db72 | 1056 | { |
f3fbd155 | 1057 | XSETCDR (rest, Fcdr (XCDR (rest))); |
ede4db72 RS |
1058 | break; |
1059 | } | |
1060 | } | |
1061 | ||
1062 | /* Let random lisp code notice that the selection has been stolen. */ | |
1063 | ||
1064 | { | |
d1f21a66 | 1065 | Lisp_Object rest; |
c917a8de | 1066 | rest = Vx_lost_selection_functions; |
ede4db72 | 1067 | if (!EQ (rest, Qunbound)) |
d1f21a66 RS |
1068 | { |
1069 | for (; CONSP (rest); rest = Fcdr (rest)) | |
1070 | call1 (Fcar (rest), selection_symbol); | |
7c6b2ea4 | 1071 | prepare_menu_bars (); |
3007ebfb | 1072 | redisplay_preserve_echo_area (20); |
d1f21a66 | 1073 | } |
ede4db72 RS |
1074 | } |
1075 | } | |
1076 | ||
dd0fe424 KS |
1077 | void |
1078 | x_handle_selection_event (event) | |
1079 | struct input_event *event; | |
1080 | { | |
1081 | TRACE0 ("x_handle_selection_event"); | |
1082 | ||
1083 | if (event->kind == SELECTION_REQUEST_EVENT) | |
1084 | { | |
1085 | if (x_queue_selection_requests) | |
1086 | x_queue_event (event); | |
1087 | else | |
1088 | x_handle_selection_request (event); | |
1089 | } | |
1090 | else | |
1091 | x_handle_selection_clear (event); | |
1092 | } | |
1093 | ||
1094 | ||
118bd841 RS |
1095 | /* Clear all selections that were made from frame F. |
1096 | We do this when about to delete a frame. */ | |
1097 | ||
1098 | void | |
1099 | x_clear_frame_selections (f) | |
1100 | FRAME_PTR f; | |
1101 | { | |
1102 | Lisp_Object frame; | |
1103 | Lisp_Object rest; | |
1104 | ||
90851bbe | 1105 | XSETFRAME (frame, f); |
118bd841 RS |
1106 | |
1107 | /* Otherwise, we're really honest and truly being told to drop it. | |
1108 | Don't use Fdelq as that may QUIT;. */ | |
1109 | ||
0d199f9c RS |
1110 | /* Delete elements from the beginning of Vselection_alist. */ |
1111 | while (!NILP (Vselection_alist) | |
1112 | && EQ (frame, Fcar (Fcdr (Fcdr (Fcdr (Fcar (Vselection_alist))))))) | |
1113 | { | |
1114 | /* Let random Lisp code notice that the selection has been stolen. */ | |
1115 | Lisp_Object hooks, selection_symbol; | |
1116 | ||
c917a8de | 1117 | hooks = Vx_lost_selection_functions; |
0d199f9c RS |
1118 | selection_symbol = Fcar (Fcar (Vselection_alist)); |
1119 | ||
1120 | if (!EQ (hooks, Qunbound)) | |
1121 | { | |
1122 | for (; CONSP (hooks); hooks = Fcdr (hooks)) | |
1123 | call1 (Fcar (hooks), selection_symbol); | |
996b804d MB |
1124 | #if 0 /* This can crash when deleting a frame |
1125 | from x_connection_closed. Anyway, it seems unnecessary; | |
1126 | something else should cause a redisplay. */ | |
3007ebfb | 1127 | redisplay_preserve_echo_area (21); |
996b804d | 1128 | #endif |
0d199f9c RS |
1129 | } |
1130 | ||
1131 | Vselection_alist = Fcdr (Vselection_alist); | |
1132 | } | |
1133 | ||
1134 | /* Delete elements after the beginning of Vselection_alist. */ | |
118bd841 | 1135 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) |
8e713be6 | 1136 | if (EQ (frame, Fcar (Fcdr (Fcdr (Fcdr (Fcar (XCDR (rest)))))))) |
118bd841 RS |
1137 | { |
1138 | /* Let random Lisp code notice that the selection has been stolen. */ | |
1139 | Lisp_Object hooks, selection_symbol; | |
1140 | ||
c917a8de | 1141 | hooks = Vx_lost_selection_functions; |
8e713be6 | 1142 | selection_symbol = Fcar (Fcar (XCDR (rest))); |
118bd841 RS |
1143 | |
1144 | if (!EQ (hooks, Qunbound)) | |
1145 | { | |
1146 | for (; CONSP (hooks); hooks = Fcdr (hooks)) | |
1147 | call1 (Fcar (hooks), selection_symbol); | |
996b804d | 1148 | #if 0 /* See above */ |
3007ebfb | 1149 | redisplay_preserve_echo_area (22); |
996b804d | 1150 | #endif |
118bd841 | 1151 | } |
f3fbd155 | 1152 | XSETCDR (rest, Fcdr (XCDR (rest))); |
118bd841 RS |
1153 | break; |
1154 | } | |
1155 | } | |
ede4db72 | 1156 | \f |
ede4db72 RS |
1157 | /* Nonzero if any properties for DISPLAY and WINDOW |
1158 | are on the list of what we are waiting for. */ | |
1159 | ||
1160 | static int | |
1161 | waiting_for_other_props_on_window (display, window) | |
1162 | Display *display; | |
1163 | Window window; | |
1164 | { | |
1165 | struct prop_location *rest = property_change_wait_list; | |
1166 | while (rest) | |
1167 | if (rest->display == display && rest->window == window) | |
1168 | return 1; | |
1169 | else | |
1170 | rest = rest->next; | |
1171 | return 0; | |
1172 | } | |
1173 | ||
1174 | /* Add an entry to the list of property changes we are waiting for. | |
1175 | DISPLAY, WINDOW, PROPERTY, STATE describe what we will wait for. | |
1176 | The return value is a number that uniquely identifies | |
1177 | this awaited property change. */ | |
1178 | ||
d1f21a66 | 1179 | static struct prop_location * |
ede4db72 RS |
1180 | expect_property_change (display, window, property, state) |
1181 | Display *display; | |
1182 | Window window; | |
6c070502 | 1183 | Atom property; |
ede4db72 RS |
1184 | int state; |
1185 | { | |
d9c0d4a3 | 1186 | struct prop_location *pl = (struct prop_location *) xmalloc (sizeof *pl); |
2f65feb6 | 1187 | pl->identifier = ++prop_location_identifier; |
ede4db72 RS |
1188 | pl->display = display; |
1189 | pl->window = window; | |
1190 | pl->property = property; | |
1191 | pl->desired_state = state; | |
1192 | pl->next = property_change_wait_list; | |
d1f21a66 | 1193 | pl->arrived = 0; |
ede4db72 | 1194 | property_change_wait_list = pl; |
d1f21a66 | 1195 | return pl; |
ede4db72 RS |
1196 | } |
1197 | ||
1198 | /* Delete an entry from the list of property changes we are waiting for. | |
2f65feb6 | 1199 | IDENTIFIER is the number that uniquely identifies the entry. */ |
ede4db72 RS |
1200 | |
1201 | static void | |
d1f21a66 RS |
1202 | unexpect_property_change (location) |
1203 | struct prop_location *location; | |
ede4db72 RS |
1204 | { |
1205 | struct prop_location *prev = 0, *rest = property_change_wait_list; | |
1206 | while (rest) | |
1207 | { | |
d1f21a66 | 1208 | if (rest == location) |
ede4db72 RS |
1209 | { |
1210 | if (prev) | |
1211 | prev->next = rest->next; | |
1212 | else | |
1213 | property_change_wait_list = rest->next; | |
4feb31b2 | 1214 | xfree (rest); |
ede4db72 RS |
1215 | return; |
1216 | } | |
1217 | prev = rest; | |
1218 | rest = rest->next; | |
1219 | } | |
1220 | } | |
1221 | ||
2f65feb6 RS |
1222 | /* Remove the property change expectation element for IDENTIFIER. */ |
1223 | ||
1224 | static Lisp_Object | |
dd0fe424 KS |
1225 | wait_for_property_change_unwind (loc) |
1226 | Lisp_Object loc; | |
2f65feb6 | 1227 | { |
dd0fe424 KS |
1228 | struct prop_location *location = XSAVE_VALUE (loc)->pointer; |
1229 | ||
1230 | unexpect_property_change (location); | |
1231 | if (location == property_change_reply_object) | |
1232 | property_change_reply_object = 0; | |
ab552306 | 1233 | return Qnil; |
2f65feb6 RS |
1234 | } |
1235 | ||
ede4db72 | 1236 | /* Actually wait for a property change. |
2f65feb6 | 1237 | IDENTIFIER should be the value that expect_property_change returned. */ |
ede4db72 RS |
1238 | |
1239 | static void | |
d1f21a66 RS |
1240 | wait_for_property_change (location) |
1241 | struct prop_location *location; | |
ede4db72 | 1242 | { |
2f65feb6 | 1243 | int secs, usecs; |
aed13378 | 1244 | int count = SPECPDL_INDEX (); |
d1f21a66 | 1245 | |
dd0fe424 KS |
1246 | if (property_change_reply_object) |
1247 | abort (); | |
2f65feb6 RS |
1248 | |
1249 | /* Make sure to do unexpect_property_change if we quit or err. */ | |
dd0fe424 KS |
1250 | record_unwind_protect (wait_for_property_change_unwind, |
1251 | make_save_value (location, 0)); | |
2f65feb6 | 1252 | |
f3fbd155 | 1253 | XSETCAR (property_change_reply, Qnil); |
afe1529d | 1254 | property_change_reply_object = location; |
dd0fe424 | 1255 | |
afe1529d RS |
1256 | /* If the event we are waiting for arrives beyond here, it will set |
1257 | property_change_reply, because property_change_reply_object says so. */ | |
d1f21a66 RS |
1258 | if (! location->arrived) |
1259 | { | |
d1f21a66 RS |
1260 | secs = x_selection_timeout / 1000; |
1261 | usecs = (x_selection_timeout % 1000) * 1000; | |
d9c0d4a3 | 1262 | TRACE2 (" Waiting %d secs, %d usecs", secs, usecs); |
d64b707c KS |
1263 | wait_reading_process_output (secs, usecs, 0, 0, |
1264 | property_change_reply, NULL, 0); | |
d1f21a66 | 1265 | |
8e713be6 | 1266 | if (NILP (XCAR (property_change_reply))) |
d9c0d4a3 GM |
1267 | { |
1268 | TRACE0 (" Timed out"); | |
1269 | error ("Timed out waiting for property-notify event"); | |
1270 | } | |
d1f21a66 | 1271 | } |
2f65feb6 RS |
1272 | |
1273 | unbind_to (count, Qnil); | |
ede4db72 RS |
1274 | } |
1275 | ||
1276 | /* Called from XTread_socket in response to a PropertyNotify event. */ | |
1277 | ||
1278 | void | |
1279 | x_handle_property_notify (event) | |
1280 | XPropertyEvent *event; | |
1281 | { | |
1282 | struct prop_location *prev = 0, *rest = property_change_wait_list; | |
d9c0d4a3 | 1283 | |
ede4db72 RS |
1284 | while (rest) |
1285 | { | |
dd0fe424 KS |
1286 | if (!rest->arrived |
1287 | && rest->property == event->atom | |
ede4db72 RS |
1288 | && rest->window == event->window |
1289 | && rest->display == event->display | |
1290 | && rest->desired_state == event->state) | |
1291 | { | |
d9c0d4a3 GM |
1292 | TRACE2 ("Expected %s of property %s", |
1293 | (event->state == PropertyDelete ? "deletion" : "change"), | |
1294 | XGetAtomName (event->display, event->atom)); | |
ede4db72 | 1295 | |
d1f21a66 RS |
1296 | rest->arrived = 1; |
1297 | ||
ede4db72 RS |
1298 | /* If this is the one wait_for_property_change is waiting for, |
1299 | tell it to wake up. */ | |
d1f21a66 | 1300 | if (rest == property_change_reply_object) |
f3fbd155 | 1301 | XSETCAR (property_change_reply, Qt); |
ede4db72 | 1302 | |
ede4db72 RS |
1303 | return; |
1304 | } | |
1b65481e | 1305 | |
ede4db72 RS |
1306 | prev = rest; |
1307 | rest = rest->next; | |
1308 | } | |
ede4db72 RS |
1309 | } |
1310 | ||
1311 | ||
1312 | \f | |
1313 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1314 | ||
1315 | static Lisp_Object | |
1316 | fetch_multiple_target (event) | |
1317 | XSelectionRequestEvent *event; | |
1318 | { | |
1319 | Display *display = event->display; | |
5d0ba25b | 1320 | Window window = event->requestor; |
ede4db72 RS |
1321 | Atom target = event->target; |
1322 | Atom selection_atom = event->selection; | |
1323 | int result; | |
1324 | ||
1325 | return | |
1326 | Fcons (QMULTIPLE, | |
1327 | x_get_window_property_as_lisp_data (display, window, target, | |
1328 | QMULTIPLE, selection_atom)); | |
1329 | } | |
1330 | ||
1331 | static Lisp_Object | |
1332 | copy_multiple_data (obj) | |
1333 | Lisp_Object obj; | |
1334 | { | |
1335 | Lisp_Object vec; | |
1336 | int i; | |
1337 | int size; | |
1338 | if (CONSP (obj)) | |
8e713be6 | 1339 | return Fcons (XCAR (obj), copy_multiple_data (XCDR (obj))); |
1b65481e | 1340 | |
b7826503 | 1341 | CHECK_VECTOR (obj); |
ede4db72 RS |
1342 | vec = Fmake_vector (size = XVECTOR (obj)->size, Qnil); |
1343 | for (i = 0; i < size; i++) | |
1344 | { | |
1345 | Lisp_Object vec2 = XVECTOR (obj)->contents [i]; | |
b7826503 | 1346 | CHECK_VECTOR (vec2); |
ede4db72 RS |
1347 | if (XVECTOR (vec2)->size != 2) |
1348 | /* ??? Confusing error message */ | |
4d30ce50 | 1349 | signal_error ("Vectors must be of length 2", vec2); |
ede4db72 RS |
1350 | XVECTOR (vec)->contents [i] = Fmake_vector (2, Qnil); |
1351 | XVECTOR (XVECTOR (vec)->contents [i])->contents [0] | |
1352 | = XVECTOR (vec2)->contents [0]; | |
1353 | XVECTOR (XVECTOR (vec)->contents [i])->contents [1] | |
1354 | = XVECTOR (vec2)->contents [1]; | |
1355 | } | |
1356 | return vec; | |
1357 | } | |
1358 | ||
1359 | #endif | |
1360 | ||
1361 | \f | |
1362 | /* Variables for communication with x_handle_selection_notify. */ | |
1363 | static Atom reading_which_selection; | |
1364 | static Lisp_Object reading_selection_reply; | |
1365 | static Window reading_selection_window; | |
1366 | ||
1367 | /* Do protocol to read selection-data from the server. | |
1368 | Converts this to Lisp data and returns it. */ | |
1369 | ||
1370 | static Lisp_Object | |
3a42401d JD |
1371 | x_get_foreign_selection (selection_symbol, target_type, time_stamp) |
1372 | Lisp_Object selection_symbol, target_type, time_stamp; | |
ede4db72 | 1373 | { |
378c33ca GM |
1374 | struct frame *sf = SELECTED_FRAME (); |
1375 | Window requestor_window = FRAME_X_WINDOW (sf); | |
1376 | Display *display = FRAME_X_DISPLAY (sf); | |
1377 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
5d0ba25b | 1378 | Time requestor_time = last_event_timestamp; |
5c3a351a RS |
1379 | Atom target_property = dpyinfo->Xatom_EMACS_TMP; |
1380 | Atom selection_atom = symbol_to_x_atom (dpyinfo, display, selection_symbol); | |
ede4db72 | 1381 | Atom type_atom; |
80da0190 | 1382 | int secs, usecs; |
c525d842 | 1383 | int count = SPECPDL_INDEX (); |
55b2d45d | 1384 | Lisp_Object frame; |
ede4db72 RS |
1385 | |
1386 | if (CONSP (target_type)) | |
8e713be6 | 1387 | type_atom = symbol_to_x_atom (dpyinfo, display, XCAR (target_type)); |
ede4db72 | 1388 | else |
5c3a351a | 1389 | type_atom = symbol_to_x_atom (dpyinfo, display, target_type); |
ede4db72 | 1390 | |
3a42401d JD |
1391 | if (! NILP (time_stamp)) |
1392 | { | |
1393 | if (CONSP (time_stamp)) | |
1394 | requestor_time = (Time) cons_to_long (time_stamp); | |
1395 | else if (INTEGERP (time_stamp)) | |
1396 | requestor_time = (Time) XUINT (time_stamp); | |
1397 | else if (FLOATP (time_stamp)) | |
ff59904a | 1398 | requestor_time = (Time) XFLOAT_DATA (time_stamp); |
3a42401d JD |
1399 | else |
1400 | error ("TIME_STAMP must be cons or number"); | |
1401 | } | |
1402 | ||
ede4db72 | 1403 | BLOCK_INPUT; |
1b65481e | 1404 | |
c525d842 CY |
1405 | /* The protected block contains wait_reading_process_output, which |
1406 | can run random lisp code (process handlers) or signal. | |
1407 | Therefore, we put the x_uncatch_errors call in an unwind. */ | |
1408 | record_unwind_protect (x_catch_errors_unwind, Qnil); | |
9ba8e10d | 1409 | x_catch_errors (display); |
1b65481e | 1410 | |
d9c0d4a3 GM |
1411 | TRACE2 ("Get selection %s, type %s", |
1412 | XGetAtomName (display, type_atom), | |
1413 | XGetAtomName (display, target_property)); | |
1414 | ||
ede4db72 | 1415 | XConvertSelection (display, selection_atom, type_atom, target_property, |
5d0ba25b | 1416 | requestor_window, requestor_time); |
5c3a351a | 1417 | XFlush (display); |
ede4db72 RS |
1418 | |
1419 | /* Prepare to block until the reply has been read. */ | |
5d0ba25b | 1420 | reading_selection_window = requestor_window; |
ede4db72 | 1421 | reading_which_selection = selection_atom; |
f3fbd155 | 1422 | XSETCAR (reading_selection_reply, Qnil); |
55b2d45d RS |
1423 | |
1424 | frame = some_frame_on_display (dpyinfo); | |
1425 | ||
1426 | /* If the display no longer has frames, we can't expect | |
1427 | to get many more selection requests from it, so don't | |
1428 | bother trying to queue them. */ | |
1429 | if (!NILP (frame)) | |
1430 | { | |
dd0fe424 | 1431 | x_start_queuing_selection_requests (); |
55b2d45d RS |
1432 | |
1433 | record_unwind_protect (queue_selection_requests_unwind, | |
dd0fe424 | 1434 | Qnil); |
55b2d45d | 1435 | } |
ede4db72 RS |
1436 | UNBLOCK_INPUT; |
1437 | ||
80da0190 RS |
1438 | /* This allows quits. Also, don't wait forever. */ |
1439 | secs = x_selection_timeout / 1000; | |
1440 | usecs = (x_selection_timeout % 1000) * 1000; | |
d9c0d4a3 | 1441 | TRACE1 (" Start waiting %d secs for SelectionNotify", secs); |
d64b707c KS |
1442 | wait_reading_process_output (secs, usecs, 0, 0, |
1443 | reading_selection_reply, NULL, 0); | |
d9c0d4a3 | 1444 | TRACE1 (" Got event = %d", !NILP (XCAR (reading_selection_reply))); |
ede4db72 | 1445 | |
7c6b2ea4 | 1446 | BLOCK_INPUT; |
c525d842 CY |
1447 | if (x_had_errors_p (display)) |
1448 | error ("Cannot get selection"); | |
1449 | /* This calls x_uncatch_errors. */ | |
9ba8e10d | 1450 | unbind_to (count, Qnil); |
7c6b2ea4 RS |
1451 | UNBLOCK_INPUT; |
1452 | ||
8e713be6 | 1453 | if (NILP (XCAR (reading_selection_reply))) |
606140dd | 1454 | error ("Timed out waiting for reply from selection owner"); |
8e713be6 | 1455 | if (EQ (XCAR (reading_selection_reply), Qlambda)) |
d5db4077 | 1456 | error ("No `%s' selection", SDATA (SYMBOL_NAME (selection_symbol))); |
ede4db72 RS |
1457 | |
1458 | /* Otherwise, the selection is waiting for us on the requested property. */ | |
1459 | return | |
5d0ba25b | 1460 | x_get_window_property_as_lisp_data (display, requestor_window, |
ede4db72 RS |
1461 | target_property, target_type, |
1462 | selection_atom); | |
1463 | } | |
1464 | \f | |
1465 | /* Subroutines of x_get_window_property_as_lisp_data */ | |
1466 | ||
4feb31b2 | 1467 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1468 | |
ede4db72 RS |
1469 | static void |
1470 | x_get_window_property (display, window, property, data_ret, bytes_ret, | |
1471 | actual_type_ret, actual_format_ret, actual_size_ret, | |
1472 | delete_p) | |
1473 | Display *display; | |
1474 | Window window; | |
1475 | Atom property; | |
1476 | unsigned char **data_ret; | |
1477 | int *bytes_ret; | |
1478 | Atom *actual_type_ret; | |
1479 | int *actual_format_ret; | |
1480 | unsigned long *actual_size_ret; | |
1481 | int delete_p; | |
1482 | { | |
1483 | int total_size; | |
1484 | unsigned long bytes_remaining; | |
1485 | int offset = 0; | |
1486 | unsigned char *tmp_data = 0; | |
1487 | int result; | |
1488 | int buffer_size = SELECTION_QUANTUM (display); | |
1b65481e | 1489 | |
d9c0d4a3 GM |
1490 | if (buffer_size > MAX_SELECTION_QUANTUM) |
1491 | buffer_size = MAX_SELECTION_QUANTUM; | |
1b65481e | 1492 | |
ede4db72 | 1493 | BLOCK_INPUT; |
1b65481e | 1494 | |
ede4db72 RS |
1495 | /* First probe the thing to find out how big it is. */ |
1496 | result = XGetWindowProperty (display, window, property, | |
137edb72 | 1497 | 0L, 0L, False, AnyPropertyType, |
ede4db72 RS |
1498 | actual_type_ret, actual_format_ret, |
1499 | actual_size_ret, | |
1500 | &bytes_remaining, &tmp_data); | |
ede4db72 RS |
1501 | if (result != Success) |
1502 | { | |
2f65feb6 | 1503 | UNBLOCK_INPUT; |
ede4db72 RS |
1504 | *data_ret = 0; |
1505 | *bytes_ret = 0; | |
1506 | return; | |
1507 | } | |
1b65481e | 1508 | |
0158abbc RS |
1509 | /* This was allocated by Xlib, so use XFree. */ |
1510 | XFree ((char *) tmp_data); | |
1b65481e | 1511 | |
ede4db72 RS |
1512 | if (*actual_type_ret == None || *actual_format_ret == 0) |
1513 | { | |
2f65feb6 | 1514 | UNBLOCK_INPUT; |
ede4db72 RS |
1515 | return; |
1516 | } | |
1517 | ||
1518 | total_size = bytes_remaining + 1; | |
1519 | *data_ret = (unsigned char *) xmalloc (total_size); | |
1b65481e | 1520 | |
2a1a4c9d | 1521 | /* Now read, until we've gotten it all. */ |
ede4db72 RS |
1522 | while (bytes_remaining) |
1523 | { | |
d9c0d4a3 | 1524 | #ifdef TRACE_SELECTION |
ede4db72 RS |
1525 | int last = bytes_remaining; |
1526 | #endif | |
1527 | result | |
1528 | = XGetWindowProperty (display, window, property, | |
137edb72 | 1529 | (long)offset/4, (long)buffer_size/4, |
2f65feb6 | 1530 | False, |
ede4db72 RS |
1531 | AnyPropertyType, |
1532 | actual_type_ret, actual_format_ret, | |
1533 | actual_size_ret, &bytes_remaining, &tmp_data); | |
d9c0d4a3 GM |
1534 | |
1535 | TRACE2 ("Read %ld bytes from property %s", | |
1536 | last - bytes_remaining, | |
1537 | XGetAtomName (display, property)); | |
1538 | ||
ede4db72 RS |
1539 | /* If this doesn't return Success at this point, it means that |
1540 | some clod deleted the selection while we were in the midst of | |
d9c0d4a3 GM |
1541 | reading it. Deal with that, I guess.... */ |
1542 | if (result != Success) | |
1543 | break; | |
e22cf39c JD |
1544 | |
1545 | /* The man page for XGetWindowProperty says: | |
1546 | "If the returned format is 32, the returned data is represented | |
1547 | as a long array and should be cast to that type to obtain the | |
1548 | elements." | |
1549 | This applies even if long is more than 32 bits, the X library | |
1550 | converts from 32 bit elements received from the X server to long | |
1551 | and passes the long array to us. Thus, for that case bcopy can not | |
1552 | be used. We convert to a 32 bit type here, because so much code | |
1553 | assume on that. | |
1554 | ||
1555 | The bytes and offsets passed to XGetWindowProperty refers to the | |
1556 | property and those are indeed in 32 bit quantities if format is 32. */ | |
1557 | ||
1558 | if (*actual_format_ret == 32 && *actual_format_ret < BITS_PER_LONG) | |
1559 | { | |
1560 | unsigned long i; | |
1561 | int *idata = (int *) ((*data_ret) + offset); | |
1562 | long *ldata = (long *) tmp_data; | |
1563 | ||
1564 | for (i = 0; i < *actual_size_ret; ++i) | |
1565 | { | |
1566 | idata[i]= (int) ldata[i]; | |
1567 | offset += 4; | |
1568 | } | |
1569 | } | |
1570 | else | |
1571 | { | |
1572 | *actual_size_ret *= *actual_format_ret / 8; | |
1573 | bcopy (tmp_data, (*data_ret) + offset, *actual_size_ret); | |
1574 | offset += *actual_size_ret; | |
1575 | } | |
1b65481e | 1576 | |
0158abbc RS |
1577 | /* This was allocated by Xlib, so use XFree. */ |
1578 | XFree ((char *) tmp_data); | |
ede4db72 | 1579 | } |
2f65feb6 | 1580 | |
5c3a351a | 1581 | XFlush (display); |
ede4db72 RS |
1582 | UNBLOCK_INPUT; |
1583 | *bytes_ret = offset; | |
1584 | } | |
1585 | \f | |
4feb31b2 | 1586 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1587 | |
ede4db72 RS |
1588 | static void |
1589 | receive_incremental_selection (display, window, property, target_type, | |
1590 | min_size_bytes, data_ret, size_bytes_ret, | |
1591 | type_ret, format_ret, size_ret) | |
1592 | Display *display; | |
1593 | Window window; | |
1594 | Atom property; | |
1595 | Lisp_Object target_type; /* for error messages only */ | |
1596 | unsigned int min_size_bytes; | |
1597 | unsigned char **data_ret; | |
1598 | int *size_bytes_ret; | |
1599 | Atom *type_ret; | |
1600 | unsigned long *size_ret; | |
1601 | int *format_ret; | |
1602 | { | |
1603 | int offset = 0; | |
d1f21a66 | 1604 | struct prop_location *wait_object; |
ede4db72 RS |
1605 | *size_bytes_ret = min_size_bytes; |
1606 | *data_ret = (unsigned char *) xmalloc (*size_bytes_ret); | |
d9c0d4a3 GM |
1607 | |
1608 | TRACE1 ("Read %d bytes incrementally", min_size_bytes); | |
2f65feb6 RS |
1609 | |
1610 | /* At this point, we have read an INCR property. | |
1611 | Delete the property to ack it. | |
1612 | (But first, prepare to receive the next event in this handshake.) | |
ede4db72 RS |
1613 | |
1614 | Now, we must loop, waiting for the sending window to put a value on | |
1615 | that property, then reading the property, then deleting it to ack. | |
1616 | We are done when the sender places a property of length 0. | |
1617 | */ | |
2f65feb6 RS |
1618 | BLOCK_INPUT; |
1619 | XSelectInput (display, window, STANDARD_EVENT_SET | PropertyChangeMask); | |
d9c0d4a3 | 1620 | TRACE1 (" Delete property %s", |
dd0fe424 | 1621 | SDATA (SYMBOL_NAME (x_atom_to_symbol (display, property)))); |
2f65feb6 | 1622 | XDeleteProperty (display, window, property); |
d9c0d4a3 | 1623 | TRACE1 (" Expect new value of property %s", |
dd0fe424 | 1624 | SDATA (SYMBOL_NAME (x_atom_to_symbol (display, property)))); |
d1f21a66 RS |
1625 | wait_object = expect_property_change (display, window, property, |
1626 | PropertyNewValue); | |
5c3a351a | 1627 | XFlush (display); |
2f65feb6 RS |
1628 | UNBLOCK_INPUT; |
1629 | ||
ede4db72 RS |
1630 | while (1) |
1631 | { | |
1632 | unsigned char *tmp_data; | |
1633 | int tmp_size_bytes; | |
d9c0d4a3 GM |
1634 | |
1635 | TRACE0 (" Wait for property change"); | |
d1f21a66 | 1636 | wait_for_property_change (wait_object); |
1b65481e | 1637 | |
ede4db72 | 1638 | /* expect it again immediately, because x_get_window_property may |
2a1a4c9d | 1639 | .. no it won't, I don't get it. |
d9c0d4a3 GM |
1640 | .. Ok, I get it now, the Xt code that implements INCR is broken. */ |
1641 | TRACE0 (" Get property value"); | |
ede4db72 RS |
1642 | x_get_window_property (display, window, property, |
1643 | &tmp_data, &tmp_size_bytes, | |
1644 | type_ret, format_ret, size_ret, 1); | |
1645 | ||
d9c0d4a3 GM |
1646 | TRACE1 (" Read increment of %d bytes", tmp_size_bytes); |
1647 | ||
ede4db72 RS |
1648 | if (tmp_size_bytes == 0) /* we're done */ |
1649 | { | |
d9c0d4a3 GM |
1650 | TRACE0 ("Done reading incrementally"); |
1651 | ||
2f65feb6 RS |
1652 | if (! waiting_for_other_props_on_window (display, window)) |
1653 | XSelectInput (display, window, STANDARD_EVENT_SET); | |
4feb31b2 | 1654 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1655 | calls xmalloc itself. */ |
4feb31b2 | 1656 | if (tmp_data) xfree (tmp_data); |
ede4db72 RS |
1657 | break; |
1658 | } | |
2f65feb6 RS |
1659 | |
1660 | BLOCK_INPUT; | |
d9c0d4a3 GM |
1661 | TRACE1 (" ACK by deleting property %s", |
1662 | XGetAtomName (display, property)); | |
2f65feb6 | 1663 | XDeleteProperty (display, window, property); |
d1f21a66 RS |
1664 | wait_object = expect_property_change (display, window, property, |
1665 | PropertyNewValue); | |
5c3a351a | 1666 | XFlush (display); |
2f65feb6 RS |
1667 | UNBLOCK_INPUT; |
1668 | ||
ede4db72 RS |
1669 | if (*size_bytes_ret < offset + tmp_size_bytes) |
1670 | { | |
ede4db72 RS |
1671 | *size_bytes_ret = offset + tmp_size_bytes; |
1672 | *data_ret = (unsigned char *) xrealloc (*data_ret, *size_bytes_ret); | |
1673 | } | |
1b65481e | 1674 | |
018cfa07 | 1675 | bcopy (tmp_data, (*data_ret) + offset, tmp_size_bytes); |
ede4db72 | 1676 | offset += tmp_size_bytes; |
1b65481e | 1677 | |
4feb31b2 | 1678 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1679 | calls xmalloc itself. */ |
4feb31b2 | 1680 | xfree (tmp_data); |
ede4db72 RS |
1681 | } |
1682 | } | |
d9c0d4a3 | 1683 | |
ede4db72 RS |
1684 | \f |
1685 | /* Once a requested selection is "ready" (we got a SelectionNotify event), | |
1686 | fetch value from property PROPERTY of X window WINDOW on display DISPLAY. | |
1687 | TARGET_TYPE and SELECTION_ATOM are used in error message if this fails. */ | |
1688 | ||
1689 | static Lisp_Object | |
1690 | x_get_window_property_as_lisp_data (display, window, property, target_type, | |
1691 | selection_atom) | |
1692 | Display *display; | |
1693 | Window window; | |
1694 | Atom property; | |
1695 | Lisp_Object target_type; /* for error messages only */ | |
1696 | Atom selection_atom; /* for error messages only */ | |
1697 | { | |
1698 | Atom actual_type; | |
1699 | int actual_format; | |
1700 | unsigned long actual_size; | |
1701 | unsigned char *data = 0; | |
1702 | int bytes = 0; | |
1703 | Lisp_Object val; | |
5c3a351a | 1704 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 | 1705 | |
d9c0d4a3 GM |
1706 | TRACE0 ("Reading selection data"); |
1707 | ||
ede4db72 RS |
1708 | x_get_window_property (display, window, property, &data, &bytes, |
1709 | &actual_type, &actual_format, &actual_size, 1); | |
1710 | if (! data) | |
1711 | { | |
1712 | int there_is_a_selection_owner; | |
1713 | BLOCK_INPUT; | |
1714 | there_is_a_selection_owner | |
1715 | = XGetSelectionOwner (display, selection_atom); | |
1716 | UNBLOCK_INPUT; | |
4d30ce50 KS |
1717 | if (there_is_a_selection_owner) |
1718 | signal_error ("Selection owner couldn't convert", | |
1719 | actual_type | |
1720 | ? list2 (target_type, | |
1721 | x_atom_to_symbol (display, actual_type)) | |
1722 | : target_type); | |
1723 | else | |
1724 | signal_error ("No selection", | |
1725 | x_atom_to_symbol (display, selection_atom)); | |
ede4db72 | 1726 | } |
1b65481e | 1727 | |
5c3a351a | 1728 | if (actual_type == dpyinfo->Xatom_INCR) |
ede4db72 RS |
1729 | { |
1730 | /* That wasn't really the data, just the beginning. */ | |
1731 | ||
1732 | unsigned int min_size_bytes = * ((unsigned int *) data); | |
1733 | BLOCK_INPUT; | |
4feb31b2 | 1734 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1735 | calls xmalloc itself. */ |
4feb31b2 | 1736 | xfree ((char *) data); |
ede4db72 RS |
1737 | UNBLOCK_INPUT; |
1738 | receive_incremental_selection (display, window, property, target_type, | |
1739 | min_size_bytes, &data, &bytes, | |
1740 | &actual_type, &actual_format, | |
1741 | &actual_size); | |
1742 | } | |
1743 | ||
2f65feb6 | 1744 | BLOCK_INPUT; |
d9c0d4a3 | 1745 | TRACE1 (" Delete property %s", XGetAtomName (display, property)); |
2f65feb6 | 1746 | XDeleteProperty (display, window, property); |
5c3a351a | 1747 | XFlush (display); |
2f65feb6 RS |
1748 | UNBLOCK_INPUT; |
1749 | ||
ede4db72 RS |
1750 | /* It's been read. Now convert it to a lisp object in some semi-rational |
1751 | manner. */ | |
1752 | val = selection_data_to_lisp_data (display, data, bytes, | |
1753 | actual_type, actual_format); | |
1b65481e | 1754 | |
4feb31b2 | 1755 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1756 | calls xmalloc itself. */ |
4feb31b2 | 1757 | xfree ((char *) data); |
ede4db72 RS |
1758 | return val; |
1759 | } | |
1760 | \f | |
1761 | /* These functions convert from the selection data read from the server into | |
1762 | something that we can use from Lisp, and vice versa. | |
1763 | ||
1764 | Type: Format: Size: Lisp Type: | |
1765 | ----- ------- ----- ----------- | |
1766 | * 8 * String | |
1767 | ATOM 32 1 Symbol | |
1768 | ATOM 32 > 1 Vector of Symbols | |
1769 | * 16 1 Integer | |
1770 | * 16 > 1 Vector of Integers | |
1771 | * 32 1 if <=16 bits: Integer | |
1772 | if > 16 bits: Cons of top16, bot16 | |
1773 | * 32 > 1 Vector of the above | |
1774 | ||
1775 | When converting a Lisp number to C, it is assumed to be of format 16 if | |
1776 | it is an integer, and of format 32 if it is a cons of two integers. | |
1777 | ||
1778 | When converting a vector of numbers from Lisp to C, it is assumed to be | |
1779 | of format 16 if every element in the vector is an integer, and is assumed | |
1780 | to be of format 32 if any element is a cons of two integers. | |
1781 | ||
1782 | When converting an object to C, it may be of the form (SYMBOL . <data>) | |
1783 | where SYMBOL is what we should claim that the type is. Format and | |
b8d6f4af JD |
1784 | representation are as above. |
1785 | ||
1786 | Important: When format is 32, data should contain an array of int, | |
1787 | not an array of long as the X library returns. This makes a difference | |
1788 | when sizeof(long) != sizeof(int). */ | |
ede4db72 RS |
1789 | |
1790 | ||
1791 | ||
1792 | static Lisp_Object | |
1793 | selection_data_to_lisp_data (display, data, size, type, format) | |
1794 | Display *display; | |
1795 | unsigned char *data; | |
1796 | Atom type; | |
1797 | int size, format; | |
1798 | { | |
5c3a351a | 1799 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 | 1800 | |
5c3a351a | 1801 | if (type == dpyinfo->Xatom_NULL) |
ede4db72 RS |
1802 | return QNULL; |
1803 | ||
1804 | /* Convert any 8-bit data to a string, for compactness. */ | |
1805 | else if (format == 8) | |
e6c7c988 | 1806 | { |
e57ad4d8 KH |
1807 | Lisp_Object str, lispy_type; |
1808 | ||
1809 | str = make_unibyte_string ((char *) data, size); | |
1810 | /* Indicate that this string is from foreign selection by a text | |
1811 | property `foreign-selection' so that the caller of | |
1812 | x-get-selection-internal (usually x-get-selection) can know | |
1813 | that the string must be decode. */ | |
1814 | if (type == dpyinfo->Xatom_COMPOUND_TEXT) | |
1815 | lispy_type = QCOMPOUND_TEXT; | |
1816 | else if (type == dpyinfo->Xatom_UTF8_STRING) | |
1817 | lispy_type = QUTF8_STRING; | |
e6c7c988 | 1818 | else |
e57ad4d8 KH |
1819 | lispy_type = QSTRING; |
1820 | Fput_text_property (make_number (0), make_number (size), | |
1821 | Qforeign_selection, lispy_type, str); | |
e6c7c988 KH |
1822 | return str; |
1823 | } | |
ede4db72 RS |
1824 | /* Convert a single atom to a Lisp_Symbol. Convert a set of atoms to |
1825 | a vector of symbols. | |
1826 | */ | |
1827 | else if (type == XA_ATOM) | |
1828 | { | |
1829 | int i; | |
b8d6f4af JD |
1830 | /* On a 64 bit machine sizeof(Atom) == sizeof(long) == 8. |
1831 | But the callers of these function has made sure the data for | |
1832 | format == 32 is an array of int. Thus, use int instead | |
1833 | of Atom. */ | |
1834 | int *idata = (int *) data; | |
1835 | ||
1836 | if (size == sizeof (int)) | |
1837 | return x_atom_to_symbol (display, (Atom) idata[0]); | |
ede4db72 RS |
1838 | else |
1839 | { | |
b8d6f4af | 1840 | Lisp_Object v = Fmake_vector (make_number (size / sizeof (int)), |
e607a484 | 1841 | make_number (0)); |
b8d6f4af | 1842 | for (i = 0; i < size / sizeof (int); i++) |
e607a484 | 1843 | Faset (v, make_number (i), |
b8d6f4af | 1844 | x_atom_to_symbol (display, (Atom) idata[i])); |
ede4db72 RS |
1845 | return v; |
1846 | } | |
1847 | } | |
1848 | ||
1849 | /* Convert a single 16 or small 32 bit number to a Lisp_Int. | |
1850 | If the number is > 16 bits, convert it to a cons of integers, | |
1851 | 16 bits in each half. | |
1852 | */ | |
2f51feb8 AS |
1853 | else if (format == 32 && size == sizeof (int)) |
1854 | return long_to_cons (((unsigned int *) data) [0]); | |
ede4db72 RS |
1855 | else if (format == 16 && size == sizeof (short)) |
1856 | return make_number ((int) (((unsigned short *) data) [0])); | |
1857 | ||
1858 | /* Convert any other kind of data to a vector of numbers, represented | |
1859 | as above (as an integer, or a cons of two 16 bit integers.) | |
1860 | */ | |
1861 | else if (format == 16) | |
1862 | { | |
1863 | int i; | |
937a3875 RS |
1864 | Lisp_Object v; |
1865 | v = Fmake_vector (make_number (size / 2), make_number (0)); | |
1866 | for (i = 0; i < size / 2; i++) | |
ede4db72 RS |
1867 | { |
1868 | int j = (int) ((unsigned short *) data) [i]; | |
e607a484 | 1869 | Faset (v, make_number (i), make_number (j)); |
ede4db72 RS |
1870 | } |
1871 | return v; | |
1872 | } | |
1873 | else | |
1874 | { | |
1875 | int i; | |
e607a484 | 1876 | Lisp_Object v = Fmake_vector (make_number (size / 4), make_number (0)); |
ede4db72 RS |
1877 | for (i = 0; i < size / 4; i++) |
1878 | { | |
2f51feb8 | 1879 | unsigned int j = ((unsigned int *) data) [i]; |
e607a484 | 1880 | Faset (v, make_number (i), long_to_cons (j)); |
ede4db72 RS |
1881 | } |
1882 | return v; | |
1883 | } | |
1884 | } | |
1885 | ||
1886 | ||
4feb31b2 | 1887 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1888 | |
ede4db72 RS |
1889 | static void |
1890 | lisp_data_to_selection_data (display, obj, | |
aca39f42 RS |
1891 | data_ret, type_ret, size_ret, |
1892 | format_ret, nofree_ret) | |
ede4db72 RS |
1893 | Display *display; |
1894 | Lisp_Object obj; | |
1895 | unsigned char **data_ret; | |
1896 | Atom *type_ret; | |
1897 | unsigned int *size_ret; | |
1898 | int *format_ret; | |
aca39f42 | 1899 | int *nofree_ret; |
ede4db72 RS |
1900 | { |
1901 | Lisp_Object type = Qnil; | |
5c3a351a | 1902 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
aca39f42 RS |
1903 | |
1904 | *nofree_ret = 0; | |
1905 | ||
8e713be6 | 1906 | if (CONSP (obj) && SYMBOLP (XCAR (obj))) |
ede4db72 | 1907 | { |
8e713be6 KR |
1908 | type = XCAR (obj); |
1909 | obj = XCDR (obj); | |
1910 | if (CONSP (obj) && NILP (XCDR (obj))) | |
1911 | obj = XCAR (obj); | |
ede4db72 RS |
1912 | } |
1913 | ||
1914 | if (EQ (obj, QNULL) || (EQ (type, QNULL))) | |
1915 | { /* This is not the same as declining */ | |
1916 | *format_ret = 32; | |
1917 | *size_ret = 0; | |
1918 | *data_ret = 0; | |
1919 | type = QNULL; | |
1920 | } | |
1921 | else if (STRINGP (obj)) | |
1922 | { | |
1bd70c6e KH |
1923 | if (SCHARS (obj) < SBYTES (obj)) |
1924 | /* OBJ is a multibyte string containing a non-ASCII char. */ | |
4d30ce50 | 1925 | signal_error ("Non-ASCII string must be encoded in advance", obj); |
7b9ae523 | 1926 | if (NILP (type)) |
5109c8dd KH |
1927 | type = QSTRING; |
1928 | *format_ret = 8; | |
1929 | *size_ret = SBYTES (obj); | |
1930 | *data_ret = SDATA (obj); | |
1931 | *nofree_ret = 1; | |
ede4db72 RS |
1932 | } |
1933 | else if (SYMBOLP (obj)) | |
1934 | { | |
1935 | *format_ret = 32; | |
1936 | *size_ret = 1; | |
1937 | *data_ret = (unsigned char *) xmalloc (sizeof (Atom) + 1); | |
1938 | (*data_ret) [sizeof (Atom)] = 0; | |
5c3a351a | 1939 | (*(Atom **) data_ret) [0] = symbol_to_x_atom (dpyinfo, display, obj); |
ede4db72 RS |
1940 | if (NILP (type)) type = QATOM; |
1941 | } | |
7da64e5c | 1942 | else if (INTEGERP (obj) |
ede4db72 RS |
1943 | && XINT (obj) < 0xFFFF |
1944 | && XINT (obj) > -0xFFFF) | |
1945 | { | |
1946 | *format_ret = 16; | |
1947 | *size_ret = 1; | |
1948 | *data_ret = (unsigned char *) xmalloc (sizeof (short) + 1); | |
1949 | (*data_ret) [sizeof (short)] = 0; | |
1950 | (*(short **) data_ret) [0] = (short) XINT (obj); | |
1951 | if (NILP (type)) type = QINTEGER; | |
1952 | } | |
a87ed99c | 1953 | else if (INTEGERP (obj) |
8e713be6 KR |
1954 | || (CONSP (obj) && INTEGERP (XCAR (obj)) |
1955 | && (INTEGERP (XCDR (obj)) | |
1956 | || (CONSP (XCDR (obj)) | |
1957 | && INTEGERP (XCAR (XCDR (obj))))))) | |
ede4db72 RS |
1958 | { |
1959 | *format_ret = 32; | |
1960 | *size_ret = 1; | |
1961 | *data_ret = (unsigned char *) xmalloc (sizeof (long) + 1); | |
1962 | (*data_ret) [sizeof (long)] = 0; | |
1963 | (*(unsigned long **) data_ret) [0] = cons_to_long (obj); | |
1964 | if (NILP (type)) type = QINTEGER; | |
1965 | } | |
1966 | else if (VECTORP (obj)) | |
1967 | { | |
1968 | /* Lisp_Vectors may represent a set of ATOMs; | |
1969 | a set of 16 or 32 bit INTEGERs; | |
1970 | or a set of ATOM_PAIRs (represented as [[A1 A2] [A3 A4] ...] | |
1971 | */ | |
1972 | int i; | |
1973 | ||
1974 | if (SYMBOLP (XVECTOR (obj)->contents [0])) | |
1975 | /* This vector is an ATOM set */ | |
1976 | { | |
1977 | if (NILP (type)) type = QATOM; | |
1978 | *size_ret = XVECTOR (obj)->size; | |
1979 | *format_ret = 32; | |
1980 | *data_ret = (unsigned char *) xmalloc ((*size_ret) * sizeof (Atom)); | |
1981 | for (i = 0; i < *size_ret; i++) | |
1982 | if (SYMBOLP (XVECTOR (obj)->contents [i])) | |
1983 | (*(Atom **) data_ret) [i] | |
5c3a351a | 1984 | = symbol_to_x_atom (dpyinfo, display, XVECTOR (obj)->contents [i]); |
ede4db72 | 1985 | else |
4d30ce50 | 1986 | signal_error ("All elements of selection vector must have same type", obj); |
ede4db72 RS |
1987 | } |
1988 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1989 | else if (VECTORP (XVECTOR (obj)->contents [0])) | |
1990 | /* This vector is an ATOM_PAIR set */ | |
1991 | { | |
1992 | if (NILP (type)) type = QATOM_PAIR; | |
1993 | *size_ret = XVECTOR (obj)->size; | |
1994 | *format_ret = 32; | |
1995 | *data_ret = (unsigned char *) | |
1996 | xmalloc ((*size_ret) * sizeof (Atom) * 2); | |
1997 | for (i = 0; i < *size_ret; i++) | |
1998 | if (VECTORP (XVECTOR (obj)->contents [i])) | |
1999 | { | |
2000 | Lisp_Object pair = XVECTOR (obj)->contents [i]; | |
2001 | if (XVECTOR (pair)->size != 2) | |
4d30ce50 KS |
2002 | signal_error ( |
2003 | "Elements of the vector must be vectors of exactly two elements", | |
2004 | pair); | |
1b65481e | 2005 | |
ede4db72 | 2006 | (*(Atom **) data_ret) [i * 2] |
5c3a351a RS |
2007 | = symbol_to_x_atom (dpyinfo, display, |
2008 | XVECTOR (pair)->contents [0]); | |
ede4db72 | 2009 | (*(Atom **) data_ret) [(i * 2) + 1] |
5c3a351a RS |
2010 | = symbol_to_x_atom (dpyinfo, display, |
2011 | XVECTOR (pair)->contents [1]); | |
ede4db72 RS |
2012 | } |
2013 | else | |
4d30ce50 KS |
2014 | signal_error ("All elements of the vector must be of the same type", |
2015 | obj); | |
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])) |
4d30ce50 KS |
2030 | signal_error (/* Qselection_error */ |
2031 | "Elements of selection vector must be integers or conses of integers", | |
2032 | obj); | |
ede4db72 | 2033 | |
e22cf39c JD |
2034 | /* Use sizeof(long) even if it is more than 32 bits. See comment |
2035 | in x_get_window_property and x_fill_property_data. */ | |
6e816df5 | 2036 | |
e22cf39c JD |
2037 | if (*format_ret == 32) data_size = sizeof(long); |
2038 | *data_ret = (unsigned char *) xmalloc (*size_ret * data_size); | |
ede4db72 RS |
2039 | for (i = 0; i < *size_ret; i++) |
2040 | if (*format_ret == 32) | |
2041 | (*((unsigned long **) data_ret)) [i] | |
2042 | = cons_to_long (XVECTOR (obj)->contents [i]); | |
2043 | else | |
2044 | (*((unsigned short **) data_ret)) [i] | |
2045 | = (unsigned short) cons_to_long (XVECTOR (obj)->contents [i]); | |
2046 | } | |
2047 | } | |
2048 | else | |
4d30ce50 | 2049 | signal_error (/* Qselection_error */ "Unrecognized selection data", obj); |
ede4db72 | 2050 | |
5c3a351a | 2051 | *type_ret = symbol_to_x_atom (dpyinfo, display, type); |
ede4db72 RS |
2052 | } |
2053 | ||
2054 | static Lisp_Object | |
2055 | clean_local_selection_data (obj) | |
2056 | Lisp_Object obj; | |
2057 | { | |
2058 | if (CONSP (obj) | |
8e713be6 KR |
2059 | && INTEGERP (XCAR (obj)) |
2060 | && CONSP (XCDR (obj)) | |
2061 | && INTEGERP (XCAR (XCDR (obj))) | |
2062 | && NILP (XCDR (XCDR (obj)))) | |
2063 | obj = Fcons (XCAR (obj), XCDR (obj)); | |
ede4db72 RS |
2064 | |
2065 | if (CONSP (obj) | |
8e713be6 KR |
2066 | && INTEGERP (XCAR (obj)) |
2067 | && INTEGERP (XCDR (obj))) | |
ede4db72 | 2068 | { |
8e713be6 KR |
2069 | if (XINT (XCAR (obj)) == 0) |
2070 | return XCDR (obj); | |
2071 | if (XINT (XCAR (obj)) == -1) | |
2072 | return make_number (- XINT (XCDR (obj))); | |
ede4db72 RS |
2073 | } |
2074 | if (VECTORP (obj)) | |
2075 | { | |
2076 | int i; | |
2077 | int size = XVECTOR (obj)->size; | |
2078 | Lisp_Object copy; | |
2079 | if (size == 1) | |
2080 | return clean_local_selection_data (XVECTOR (obj)->contents [0]); | |
e607a484 | 2081 | copy = Fmake_vector (make_number (size), Qnil); |
ede4db72 RS |
2082 | for (i = 0; i < size; i++) |
2083 | XVECTOR (copy)->contents [i] | |
2084 | = clean_local_selection_data (XVECTOR (obj)->contents [i]); | |
2085 | return copy; | |
2086 | } | |
2087 | return obj; | |
2088 | } | |
2089 | \f | |
2090 | /* Called from XTread_socket to handle SelectionNotify events. | |
606140dd KH |
2091 | If it's the selection we are waiting for, stop waiting |
2092 | by setting the car of reading_selection_reply to non-nil. | |
2093 | We store t there if the reply is successful, lambda if not. */ | |
ede4db72 RS |
2094 | |
2095 | void | |
2096 | x_handle_selection_notify (event) | |
2097 | XSelectionEvent *event; | |
2098 | { | |
5d0ba25b | 2099 | if (event->requestor != reading_selection_window) |
ede4db72 RS |
2100 | return; |
2101 | if (event->selection != reading_which_selection) | |
2102 | return; | |
2103 | ||
d9c0d4a3 | 2104 | TRACE0 ("Received SelectionNotify"); |
f3fbd155 KR |
2105 | XSETCAR (reading_selection_reply, |
2106 | (event->property != 0 ? Qt : Qlambda)); | |
ede4db72 RS |
2107 | } |
2108 | ||
2109 | \f | |
a0d76c27 | 2110 | DEFUN ("x-own-selection-internal", Fx_own_selection_internal, |
8c1a1077 PJ |
2111 | Sx_own_selection_internal, 2, 2, 0, |
2112 | doc: /* Assert an X selection of the given TYPE with the given VALUE. | |
2113 | TYPE is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2114 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2115 | VALUE is typically a string, or a cons of two markers, but may be | |
2116 | anything that the functions on `selection-converter-alist' know about. */) | |
2117 | (selection_name, selection_value) | |
ede4db72 RS |
2118 | Lisp_Object selection_name, selection_value; |
2119 | { | |
703e0710 | 2120 | check_x (); |
b7826503 | 2121 | CHECK_SYMBOL (selection_name); |
253b2298 | 2122 | if (NILP (selection_value)) error ("SELECTION-VALUE may not be nil"); |
ede4db72 RS |
2123 | x_own_selection (selection_name, selection_value); |
2124 | return selection_value; | |
2125 | } | |
2126 | ||
2127 | ||
2128 | /* Request the selection value from the owner. If we are the owner, | |
2129 | simply return our selection value. If we are not the owner, this | |
2130 | will block until all of the data has arrived. */ | |
2131 | ||
a0d76c27 | 2132 | DEFUN ("x-get-selection-internal", Fx_get_selection_internal, |
3a42401d | 2133 | Sx_get_selection_internal, 2, 3, 0, |
8c1a1077 PJ |
2134 | doc: /* Return text selected from some X window. |
2135 | SELECTION is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2136 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
3a42401d JD |
2137 | TYPE is the type of data desired, typically `STRING'. |
2138 | TIME_STAMP is the time to use in the XConvertSelection call for foreign | |
2139 | selections. If omitted, defaults to the time for the last event. */) | |
2140 | (selection_symbol, target_type, time_stamp) | |
2141 | Lisp_Object selection_symbol, target_type, time_stamp; | |
ede4db72 RS |
2142 | { |
2143 | Lisp_Object val = Qnil; | |
2144 | struct gcpro gcpro1, gcpro2; | |
2145 | GCPRO2 (target_type, val); /* we store newly consed data into these */ | |
703e0710 | 2146 | check_x (); |
b7826503 | 2147 | CHECK_SYMBOL (selection_symbol); |
ede4db72 RS |
2148 | |
2149 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
2150 | if (CONSP (target_type) | |
8e713be6 | 2151 | && XCAR (target_type) == QMULTIPLE) |
ede4db72 | 2152 | { |
b7826503 | 2153 | CHECK_VECTOR (XCDR (target_type)); |
ede4db72 RS |
2154 | /* So we don't destructively modify this... */ |
2155 | target_type = copy_multiple_data (target_type); | |
2156 | } | |
2157 | else | |
2158 | #endif | |
b7826503 | 2159 | CHECK_SYMBOL (target_type); |
ede4db72 | 2160 | |
5109c8dd | 2161 | val = x_get_local_selection (selection_symbol, target_type, 1); |
ede4db72 RS |
2162 | |
2163 | if (NILP (val)) | |
2164 | { | |
3a42401d | 2165 | val = x_get_foreign_selection (selection_symbol, target_type, time_stamp); |
ede4db72 RS |
2166 | goto DONE; |
2167 | } | |
2168 | ||
2169 | if (CONSP (val) | |
8e713be6 | 2170 | && SYMBOLP (XCAR (val))) |
ede4db72 | 2171 | { |
8e713be6 KR |
2172 | val = XCDR (val); |
2173 | if (CONSP (val) && NILP (XCDR (val))) | |
2174 | val = XCAR (val); | |
ede4db72 RS |
2175 | } |
2176 | val = clean_local_selection_data (val); | |
2177 | DONE: | |
2178 | UNGCPRO; | |
2179 | return val; | |
2180 | } | |
2181 | ||
a0d76c27 | 2182 | DEFUN ("x-disown-selection-internal", Fx_disown_selection_internal, |
8c1a1077 PJ |
2183 | Sx_disown_selection_internal, 1, 2, 0, |
2184 | doc: /* If we own the selection SELECTION, disown it. | |
2185 | Disowning it means there is no such selection. */) | |
2186 | (selection, time) | |
ede4db72 RS |
2187 | Lisp_Object selection; |
2188 | Lisp_Object time; | |
2189 | { | |
ede4db72 RS |
2190 | Time timestamp; |
2191 | Atom selection_atom; | |
31df61d6 AS |
2192 | union { |
2193 | struct selection_input_event sie; | |
2194 | struct input_event ie; | |
2195 | } event; | |
3834c318 | 2196 | Display *display; |
5c3a351a | 2197 | struct x_display_info *dpyinfo; |
378c33ca | 2198 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2199 | |
703e0710 | 2200 | check_x (); |
378c33ca GM |
2201 | display = FRAME_X_DISPLAY (sf); |
2202 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
b7826503 | 2203 | CHECK_SYMBOL (selection); |
ede4db72 | 2204 | if (NILP (time)) |
7da64e5c | 2205 | timestamp = last_event_timestamp; |
ede4db72 RS |
2206 | else |
2207 | timestamp = cons_to_long (time); | |
2208 | ||
2209 | if (NILP (assq_no_quit (selection, Vselection_alist))) | |
2210 | return Qnil; /* Don't disown the selection when we're not the owner. */ | |
2211 | ||
5c3a351a | 2212 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection); |
ede4db72 RS |
2213 | |
2214 | BLOCK_INPUT; | |
2215 | XSetSelectionOwner (display, selection_atom, None, timestamp); | |
2216 | UNBLOCK_INPUT; | |
2217 | ||
eb8c3be9 | 2218 | /* It doesn't seem to be guaranteed that a SelectionClear event will be |
ede4db72 RS |
2219 | generated for a window which owns the selection when that window sets |
2220 | the selection owner to None. The NCD server does, the MIT Sun4 server | |
2221 | doesn't. So we synthesize one; this means we might get two, but | |
2222 | that's ok, because the second one won't have any effect. */ | |
31df61d6 AS |
2223 | SELECTION_EVENT_DISPLAY (&event.sie) = display; |
2224 | SELECTION_EVENT_SELECTION (&event.sie) = selection_atom; | |
2225 | SELECTION_EVENT_TIME (&event.sie) = timestamp; | |
2226 | x_handle_selection_clear (&event.ie); | |
ede4db72 RS |
2227 | |
2228 | return Qt; | |
2229 | } | |
2230 | ||
a87ed99c RS |
2231 | /* Get rid of all the selections in buffer BUFFER. |
2232 | This is used when we kill a buffer. */ | |
2233 | ||
2234 | void | |
2235 | x_disown_buffer_selections (buffer) | |
2236 | Lisp_Object buffer; | |
2237 | { | |
2238 | Lisp_Object tail; | |
2239 | struct buffer *buf = XBUFFER (buffer); | |
2240 | ||
8e713be6 | 2241 | for (tail = Vselection_alist; CONSP (tail); tail = XCDR (tail)) |
a87ed99c RS |
2242 | { |
2243 | Lisp_Object elt, value; | |
8e713be6 KR |
2244 | elt = XCAR (tail); |
2245 | value = XCDR (elt); | |
2246 | if (CONSP (value) && MARKERP (XCAR (value)) | |
2247 | && XMARKER (XCAR (value))->buffer == buf) | |
2248 | Fx_disown_selection_internal (XCAR (elt), Qnil); | |
a87ed99c RS |
2249 | } |
2250 | } | |
ede4db72 RS |
2251 | |
2252 | DEFUN ("x-selection-owner-p", Fx_selection_owner_p, Sx_selection_owner_p, | |
8c1a1077 PJ |
2253 | 0, 1, 0, |
2254 | doc: /* Whether the current Emacs process owns the given X Selection. | |
2255 | The arg should be the name of the selection in question, typically one of | |
2256 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2257 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2258 | For convenience, the symbol nil is the same as `PRIMARY', | |
2259 | and t is the same as `SECONDARY'. */) | |
2260 | (selection) | |
ede4db72 RS |
2261 | Lisp_Object selection; |
2262 | { | |
703e0710 | 2263 | check_x (); |
b7826503 | 2264 | CHECK_SYMBOL (selection); |
ede4db72 RS |
2265 | if (EQ (selection, Qnil)) selection = QPRIMARY; |
2266 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
1b65481e | 2267 | |
ede4db72 RS |
2268 | if (NILP (Fassq (selection, Vselection_alist))) |
2269 | return Qnil; | |
2270 | return Qt; | |
2271 | } | |
2272 | ||
2273 | DEFUN ("x-selection-exists-p", Fx_selection_exists_p, Sx_selection_exists_p, | |
8c1a1077 PJ |
2274 | 0, 1, 0, |
2275 | doc: /* Whether there is an owner for the given X Selection. | |
2276 | The arg should be the name of the selection in question, typically one of | |
2277 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2278 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2279 | For convenience, the symbol nil is the same as `PRIMARY', | |
2280 | and t is the same as `SECONDARY'. */) | |
2281 | (selection) | |
ede4db72 RS |
2282 | Lisp_Object selection; |
2283 | { | |
2284 | Window owner; | |
356ba514 | 2285 | Atom atom; |
3834c318 | 2286 | Display *dpy; |
378c33ca | 2287 | struct frame *sf = SELECTED_FRAME (); |
3834c318 | 2288 | |
b8c70430 | 2289 | /* It should be safe to call this before we have an X frame. */ |
378c33ca | 2290 | if (! FRAME_X_P (sf)) |
b8c70430 RS |
2291 | return Qnil; |
2292 | ||
378c33ca | 2293 | dpy = FRAME_X_DISPLAY (sf); |
b7826503 | 2294 | CHECK_SYMBOL (selection); |
ede4db72 RS |
2295 | if (!NILP (Fx_selection_owner_p (selection))) |
2296 | return Qt; | |
356ba514 RS |
2297 | if (EQ (selection, Qnil)) selection = QPRIMARY; |
2298 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
378c33ca | 2299 | atom = symbol_to_x_atom (FRAME_X_DISPLAY_INFO (sf), dpy, selection); |
356ba514 RS |
2300 | if (atom == 0) |
2301 | return Qnil; | |
ede4db72 | 2302 | BLOCK_INPUT; |
356ba514 | 2303 | owner = XGetSelectionOwner (dpy, atom); |
ede4db72 RS |
2304 | UNBLOCK_INPUT; |
2305 | return (owner ? Qt : Qnil); | |
2306 | } | |
2307 | ||
2308 | \f | |
2309 | #ifdef CUT_BUFFER_SUPPORT | |
2310 | ||
ede4db72 RS |
2311 | /* Ensure that all 8 cut buffers exist. ICCCM says we gotta... */ |
2312 | static void | |
2313 | initialize_cut_buffers (display, window) | |
2314 | Display *display; | |
2315 | Window window; | |
2316 | { | |
2317 | unsigned char *data = (unsigned char *) ""; | |
2318 | BLOCK_INPUT; | |
2319 | #define FROB(atom) XChangeProperty (display, window, atom, XA_STRING, 8, \ | |
2320 | PropModeAppend, data, 0) | |
2321 | FROB (XA_CUT_BUFFER0); | |
2322 | FROB (XA_CUT_BUFFER1); | |
2323 | FROB (XA_CUT_BUFFER2); | |
2324 | FROB (XA_CUT_BUFFER3); | |
2325 | FROB (XA_CUT_BUFFER4); | |
2326 | FROB (XA_CUT_BUFFER5); | |
2327 | FROB (XA_CUT_BUFFER6); | |
2328 | FROB (XA_CUT_BUFFER7); | |
2329 | #undef FROB | |
2330 | UNBLOCK_INPUT; | |
ede4db72 RS |
2331 | } |
2332 | ||
2333 | ||
b7826503 | 2334 | #define CHECK_CUT_BUFFER(symbol) \ |
4d30ce50 | 2335 | do { CHECK_SYMBOL ((symbol)); \ |
ede4db72 RS |
2336 | if (!EQ((symbol), QCUT_BUFFER0) && !EQ((symbol), QCUT_BUFFER1) \ |
2337 | && !EQ((symbol), QCUT_BUFFER2) && !EQ((symbol), QCUT_BUFFER3) \ | |
2338 | && !EQ((symbol), QCUT_BUFFER4) && !EQ((symbol), QCUT_BUFFER5) \ | |
2339 | && !EQ((symbol), QCUT_BUFFER6) && !EQ((symbol), QCUT_BUFFER7)) \ | |
4d30ce50 KS |
2340 | signal_error ("Doesn't name a cut buffer", (symbol)); \ |
2341 | } while (0) | |
ede4db72 | 2342 | |
a87ed99c | 2343 | DEFUN ("x-get-cut-buffer-internal", Fx_get_cut_buffer_internal, |
8c1a1077 PJ |
2344 | Sx_get_cut_buffer_internal, 1, 1, 0, |
2345 | doc: /* Returns the value of the named cut buffer (typically CUT_BUFFER0). */) | |
2346 | (buffer) | |
ede4db72 RS |
2347 | Lisp_Object buffer; |
2348 | { | |
3834c318 | 2349 | Window window; |
ede4db72 RS |
2350 | Atom buffer_atom; |
2351 | unsigned char *data; | |
2352 | int bytes; | |
2353 | Atom type; | |
2354 | int format; | |
2355 | unsigned long size; | |
2356 | Lisp_Object ret; | |
3834c318 | 2357 | Display *display; |
5c3a351a | 2358 | struct x_display_info *dpyinfo; |
378c33ca | 2359 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2360 | |
703e0710 | 2361 | check_x (); |
378c33ca GM |
2362 | display = FRAME_X_DISPLAY (sf); |
2363 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
3834c318 | 2364 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
b7826503 | 2365 | CHECK_CUT_BUFFER (buffer); |
5c3a351a | 2366 | buffer_atom = symbol_to_x_atom (dpyinfo, display, buffer); |
ede4db72 RS |
2367 | |
2368 | x_get_window_property (display, window, buffer_atom, &data, &bytes, | |
2369 | &type, &format, &size, 0); | |
22e00739 RS |
2370 | if (!data || !format) |
2371 | return Qnil; | |
1b65481e | 2372 | |
ede4db72 | 2373 | if (format != 8 || type != XA_STRING) |
4d30ce50 KS |
2374 | signal_error ("Cut buffer doesn't contain 8-bit data", |
2375 | list2 (x_atom_to_symbol (display, type), | |
2376 | make_number (format))); | |
ede4db72 | 2377 | |
3f6b532c | 2378 | ret = (bytes ? make_unibyte_string ((char *) data, bytes) : Qnil); |
4feb31b2 | 2379 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 2380 | calls xmalloc itself. */ |
4feb31b2 | 2381 | xfree (data); |
ede4db72 RS |
2382 | return ret; |
2383 | } | |
2384 | ||
2385 | ||
a87ed99c | 2386 | DEFUN ("x-store-cut-buffer-internal", Fx_store_cut_buffer_internal, |
8c1a1077 PJ |
2387 | Sx_store_cut_buffer_internal, 2, 2, 0, |
2388 | doc: /* Sets the value of the named cut buffer (typically CUT_BUFFER0). */) | |
2389 | (buffer, string) | |
ede4db72 RS |
2390 | Lisp_Object buffer, string; |
2391 | { | |
3834c318 | 2392 | Window window; |
ede4db72 RS |
2393 | Atom buffer_atom; |
2394 | unsigned char *data; | |
2395 | int bytes; | |
2396 | int bytes_remaining; | |
3834c318 RS |
2397 | int max_bytes; |
2398 | Display *display; | |
378c33ca | 2399 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2400 | |
703e0710 | 2401 | check_x (); |
378c33ca | 2402 | display = FRAME_X_DISPLAY (sf); |
3834c318 RS |
2403 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
2404 | ||
2405 | max_bytes = SELECTION_QUANTUM (display); | |
2406 | if (max_bytes > MAX_SELECTION_QUANTUM) | |
2407 | max_bytes = MAX_SELECTION_QUANTUM; | |
2408 | ||
b7826503 PJ |
2409 | CHECK_CUT_BUFFER (buffer); |
2410 | CHECK_STRING (string); | |
378c33ca | 2411 | buffer_atom = symbol_to_x_atom (FRAME_X_DISPLAY_INFO (sf), |
5c3a351a | 2412 | display, buffer); |
d5db4077 KR |
2413 | data = (unsigned char *) SDATA (string); |
2414 | bytes = SBYTES (string); | |
ede4db72 RS |
2415 | bytes_remaining = bytes; |
2416 | ||
378c33ca | 2417 | if (! FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized) |
04649dbc KH |
2418 | { |
2419 | initialize_cut_buffers (display, window); | |
378c33ca | 2420 | FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized = 1; |
04649dbc | 2421 | } |
ede4db72 RS |
2422 | |
2423 | BLOCK_INPUT; | |
10608c8c RS |
2424 | |
2425 | /* Don't mess up with an empty value. */ | |
2426 | if (!bytes_remaining) | |
2427 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
2428 | PropModeReplace, data, 0); | |
2429 | ||
ede4db72 RS |
2430 | while (bytes_remaining) |
2431 | { | |
2432 | int chunk = (bytes_remaining < max_bytes | |
2433 | ? bytes_remaining : max_bytes); | |
2434 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
2435 | (bytes_remaining == bytes | |
2436 | ? PropModeReplace | |
2437 | : PropModeAppend), | |
2438 | data, chunk); | |
2439 | data += chunk; | |
2440 | bytes_remaining -= chunk; | |
2441 | } | |
2442 | UNBLOCK_INPUT; | |
2443 | return string; | |
2444 | } | |
2445 | ||
2446 | ||
a87ed99c | 2447 | DEFUN ("x-rotate-cut-buffers-internal", Fx_rotate_cut_buffers_internal, |
8c1a1077 PJ |
2448 | Sx_rotate_cut_buffers_internal, 1, 1, 0, |
2449 | doc: /* Rotate the values of the cut buffers by the given number of step. | |
2450 | Positive means shift the values forward, negative means backward. */) | |
2451 | (n) | |
ede4db72 RS |
2452 | Lisp_Object n; |
2453 | { | |
3834c318 RS |
2454 | Window window; |
2455 | Atom props[8]; | |
2456 | Display *display; | |
378c33ca | 2457 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2458 | |
703e0710 | 2459 | check_x (); |
378c33ca | 2460 | display = FRAME_X_DISPLAY (sf); |
3834c318 | 2461 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
b7826503 | 2462 | CHECK_NUMBER (n); |
3834c318 RS |
2463 | if (XINT (n) == 0) |
2464 | return n; | |
378c33ca | 2465 | if (! FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized) |
04649dbc KH |
2466 | { |
2467 | initialize_cut_buffers (display, window); | |
378c33ca | 2468 | FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized = 1; |
04649dbc | 2469 | } |
3834c318 | 2470 | |
ede4db72 RS |
2471 | props[0] = XA_CUT_BUFFER0; |
2472 | props[1] = XA_CUT_BUFFER1; | |
2473 | props[2] = XA_CUT_BUFFER2; | |
2474 | props[3] = XA_CUT_BUFFER3; | |
2475 | props[4] = XA_CUT_BUFFER4; | |
2476 | props[5] = XA_CUT_BUFFER5; | |
2477 | props[6] = XA_CUT_BUFFER6; | |
2478 | props[7] = XA_CUT_BUFFER7; | |
2479 | BLOCK_INPUT; | |
2480 | XRotateWindowProperties (display, window, props, 8, XINT (n)); | |
2481 | UNBLOCK_INPUT; | |
2482 | return n; | |
2483 | } | |
2484 | ||
2485 | #endif | |
2486 | \f | |
1fb3821b JD |
2487 | /*********************************************************************** |
2488 | Drag and drop support | |
2489 | ***********************************************************************/ | |
2490 | /* Check that lisp values are of correct type for x_fill_property_data. | |
2491 | That is, number, string or a cons with two numbers (low and high 16 | |
2492 | bit parts of a 32 bit number). */ | |
2493 | ||
2494 | int | |
2495 | x_check_property_data (data) | |
2496 | Lisp_Object data; | |
2497 | { | |
2498 | Lisp_Object iter; | |
2499 | int size = 0; | |
2500 | ||
2501 | for (iter = data; CONSP (iter) && size != -1; iter = XCDR (iter), ++size) | |
2502 | { | |
2503 | Lisp_Object o = XCAR (iter); | |
2504 | ||
2505 | if (! NUMBERP (o) && ! STRINGP (o) && ! CONSP (o)) | |
2506 | size = -1; | |
2507 | else if (CONSP (o) && | |
2508 | (! NUMBERP (XCAR (o)) || ! NUMBERP (XCDR (o)))) | |
2509 | size = -1; | |
2510 | } | |
2511 | ||
2512 | return size; | |
2513 | } | |
2514 | ||
2515 | /* Convert lisp values to a C array. Values may be a number, a string | |
2516 | which is taken as an X atom name and converted to the atom value, or | |
2517 | a cons containing the two 16 bit parts of a 32 bit number. | |
2518 | ||
2519 | DPY is the display use to look up X atoms. | |
2520 | DATA is a Lisp list of values to be converted. | |
2521 | RET is the C array that contains the converted values. It is assumed | |
ff59904a | 2522 | it is big enough to hold all values. |
e22cf39c JD |
2523 | FORMAT is 8, 16 or 32 and denotes char/short/long for each C value to |
2524 | be stored in RET. Note that long is used for 32 even if long is more | |
2525 | than 32 bits (see man pages for XChangeProperty, XGetWindowProperty and | |
2526 | XClientMessageEvent). */ | |
1fb3821b JD |
2527 | |
2528 | void | |
2529 | x_fill_property_data (dpy, data, ret, format) | |
2530 | Display *dpy; | |
2531 | Lisp_Object data; | |
2532 | void *ret; | |
2533 | int format; | |
2534 | { | |
e22cf39c JD |
2535 | long val; |
2536 | long *d32 = (long *) ret; | |
2537 | short *d16 = (short *) ret; | |
2538 | char *d08 = (char *) ret; | |
1fb3821b JD |
2539 | Lisp_Object iter; |
2540 | ||
2541 | for (iter = data; CONSP (iter); iter = XCDR (iter)) | |
2542 | { | |
2543 | Lisp_Object o = XCAR (iter); | |
2544 | ||
2545 | if (INTEGERP (o)) | |
e22cf39c | 2546 | val = (long) XFASTINT (o); |
1fb3821b | 2547 | else if (FLOATP (o)) |
e22cf39c | 2548 | val = (long) XFLOAT_DATA (o); |
1fb3821b | 2549 | else if (CONSP (o)) |
e22cf39c | 2550 | val = (long) cons_to_long (o); |
1fb3821b JD |
2551 | else if (STRINGP (o)) |
2552 | { | |
2553 | BLOCK_INPUT; | |
e22cf39c | 2554 | val = (long) XInternAtom (dpy, (char *) SDATA (o), False); |
1fb3821b JD |
2555 | UNBLOCK_INPUT; |
2556 | } | |
2557 | else | |
2558 | error ("Wrong type, must be string, number or cons"); | |
2559 | ||
2560 | if (format == 8) | |
e22cf39c | 2561 | *d08++ = (char) val; |
1fb3821b | 2562 | else if (format == 16) |
e22cf39c | 2563 | *d16++ = (short) val; |
1fb3821b JD |
2564 | else |
2565 | *d32++ = val; | |
2566 | } | |
2567 | } | |
2568 | ||
2569 | /* Convert an array of C values to a Lisp list. | |
2570 | F is the frame to be used to look up X atoms if the TYPE is XA_ATOM. | |
2571 | DATA is a C array of values to be converted. | |
2572 | TYPE is the type of the data. Only XA_ATOM is special, it converts | |
2573 | each number in DATA to its corresponfing X atom as a symbol. | |
2574 | FORMAT is 8, 16 or 32 and gives the size in bits for each C value to | |
2575 | be stored in RET. | |
2576 | SIZE is the number of elements in DATA. | |
2577 | ||
b8d6f4af JD |
2578 | Important: When format is 32, data should contain an array of int, |
2579 | not an array of long as the X library returns. This makes a difference | |
2580 | when sizeof(long) != sizeof(int). | |
2581 | ||
1fb3821b JD |
2582 | Also see comment for selection_data_to_lisp_data above. */ |
2583 | ||
2584 | Lisp_Object | |
2585 | x_property_data_to_lisp (f, data, type, format, size) | |
2586 | struct frame *f; | |
2587 | unsigned char *data; | |
2588 | Atom type; | |
2589 | int format; | |
2590 | unsigned long size; | |
2591 | { | |
2592 | return selection_data_to_lisp_data (FRAME_X_DISPLAY (f), | |
2593 | data, size*format/8, type, format); | |
2594 | } | |
2595 | ||
31f16913 | 2596 | /* Get the mouse position in frame relative coordinates. */ |
1fb3821b JD |
2597 | |
2598 | static void | |
2599 | mouse_position_for_drop (f, x, y) | |
2600 | FRAME_PTR f; | |
2601 | int *x; | |
2602 | int *y; | |
2603 | { | |
2604 | Window root, dummy_window; | |
2605 | int dummy; | |
2606 | ||
2607 | BLOCK_INPUT; | |
2608 | ||
2609 | XQueryPointer (FRAME_X_DISPLAY (f), | |
2610 | DefaultRootWindow (FRAME_X_DISPLAY (f)), | |
2611 | ||
2612 | /* The root window which contains the pointer. */ | |
2613 | &root, | |
2614 | ||
2615 | /* Window pointer is on, not used */ | |
2616 | &dummy_window, | |
2617 | ||
2618 | /* The position on that root window. */ | |
2619 | x, y, | |
2620 | ||
2621 | /* x/y in dummy_window coordinates, not used. */ | |
2622 | &dummy, &dummy, | |
2623 | ||
2624 | /* Modifier keys and pointer buttons, about which | |
2625 | we don't care. */ | |
2626 | (unsigned int *) &dummy); | |
2627 | ||
2628 | ||
2629 | /* Absolute to relative. */ | |
2630 | *x -= f->left_pos + FRAME_OUTER_TO_INNER_DIFF_X (f); | |
2631 | *y -= f->top_pos + FRAME_OUTER_TO_INNER_DIFF_Y (f); | |
2632 | ||
2633 | UNBLOCK_INPUT; | |
2634 | } | |
2635 | ||
2636 | DEFUN ("x-get-atom-name", Fx_get_atom_name, | |
2637 | Sx_get_atom_name, 1, 2, 0, | |
2638 | doc: /* Return the X atom name for VALUE as a string. | |
2639 | VALUE may be a number or a cons where the car is the upper 16 bits and | |
2640 | the cdr is the lower 16 bits of a 32 bit value. | |
2641 | Use the display for FRAME or the current frame if FRAME is not given or nil. | |
2642 | ||
2643 | If the value is 0 or the atom is not known, return the empty string. */) | |
2644 | (value, frame) | |
2645 | Lisp_Object value, frame; | |
2646 | { | |
2647 | struct frame *f = check_x_frame (frame); | |
2648 | char *name = 0; | |
2649 | Lisp_Object ret = Qnil; | |
1fb3821b JD |
2650 | Display *dpy = FRAME_X_DISPLAY (f); |
2651 | Atom atom; | |
c525d842 | 2652 | int had_errors; |
1fb3821b JD |
2653 | |
2654 | if (INTEGERP (value)) | |
2655 | atom = (Atom) XUINT (value); | |
2656 | else if (FLOATP (value)) | |
ff59904a | 2657 | atom = (Atom) XFLOAT_DATA (value); |
1fb3821b JD |
2658 | else if (CONSP (value)) |
2659 | atom = (Atom) cons_to_long (value); | |
2660 | else | |
2661 | error ("Wrong type, value must be number or cons"); | |
2662 | ||
2663 | BLOCK_INPUT; | |
9ba8e10d | 2664 | x_catch_errors (dpy); |
1fb3821b | 2665 | name = atom ? XGetAtomName (dpy, atom) : ""; |
c525d842 CY |
2666 | had_errors = x_had_errors_p (dpy); |
2667 | x_uncatch_errors (); | |
1fb3821b | 2668 | |
c525d842 | 2669 | if (!had_errors) |
1fb3821b JD |
2670 | ret = make_string (name, strlen (name)); |
2671 | ||
1fb3821b JD |
2672 | if (atom && name) XFree (name); |
2673 | if (NILP (ret)) ret = make_string ("", 0); | |
2674 | ||
2675 | UNBLOCK_INPUT; | |
2676 | ||
2677 | return ret; | |
2678 | } | |
2679 | ||
9fc68699 JD |
2680 | DEFUN ("x-register-dnd-atom", Fx_register_dnd_atom, |
2681 | Sx_register_dnd_atom, 1, 2, 0, | |
2682 | doc: /* Request that dnd events are made for ClientMessages with ATOM. | |
2683 | ATOM can be a symbol or a string. The ATOM is interned on the display that | |
2684 | FRAME is on. If FRAME is nil, the selected frame is used. */) | |
2685 | (atom, frame) | |
2686 | Lisp_Object atom, frame; | |
2687 | { | |
2688 | Atom x_atom; | |
2689 | struct frame *f = check_x_frame (frame); | |
2690 | size_t i; | |
2691 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); | |
2692 | ||
2693 | ||
2694 | if (SYMBOLP (atom)) | |
2695 | x_atom = symbol_to_x_atom (dpyinfo, FRAME_X_DISPLAY (f), atom); | |
2696 | else if (STRINGP (atom)) | |
2697 | { | |
2698 | BLOCK_INPUT; | |
2699 | x_atom = XInternAtom (FRAME_X_DISPLAY (f), (char *) SDATA (atom), False); | |
2700 | UNBLOCK_INPUT; | |
2701 | } | |
2702 | else | |
2703 | error ("ATOM must be a symbol or a string"); | |
2704 | ||
2705 | for (i = 0; i < dpyinfo->x_dnd_atoms_length; ++i) | |
2706 | if (dpyinfo->x_dnd_atoms[i] == x_atom) | |
2707 | return Qnil; | |
2708 | ||
2709 | if (dpyinfo->x_dnd_atoms_length == dpyinfo->x_dnd_atoms_size) | |
2710 | { | |
2711 | dpyinfo->x_dnd_atoms_size *= 2; | |
2712 | dpyinfo->x_dnd_atoms = xrealloc (dpyinfo->x_dnd_atoms, | |
2713 | sizeof (*dpyinfo->x_dnd_atoms) | |
2714 | * dpyinfo->x_dnd_atoms_size); | |
2715 | } | |
2716 | ||
2717 | dpyinfo->x_dnd_atoms[dpyinfo->x_dnd_atoms_length++] = x_atom; | |
2718 | return Qnil; | |
2719 | } | |
2720 | ||
2721 | /* Convert an XClientMessageEvent to a Lisp event of type DRAG_N_DROP_EVENT. */ | |
1fb3821b JD |
2722 | |
2723 | int | |
2724 | x_handle_dnd_message (f, event, dpyinfo, bufp) | |
2725 | struct frame *f; | |
2726 | XClientMessageEvent *event; | |
2727 | struct x_display_info *dpyinfo; | |
2728 | struct input_event *bufp; | |
2729 | { | |
2730 | Lisp_Object vec; | |
2731 | Lisp_Object frame; | |
e22cf39c JD |
2732 | /* format 32 => size 5, format 16 => size 10, format 8 => size 20 */ |
2733 | unsigned long size = 160/event->format; | |
1fb3821b | 2734 | int x, y; |
31f16913 JD |
2735 | unsigned char *data = (unsigned char *) event->data.b; |
2736 | int idata[5]; | |
9fc68699 JD |
2737 | size_t i; |
2738 | ||
2739 | for (i = 0; i < dpyinfo->x_dnd_atoms_length; ++i) | |
2740 | if (dpyinfo->x_dnd_atoms[i] == event->message_type) break; | |
2741 | ||
2742 | if (i == dpyinfo->x_dnd_atoms_length) return 0; | |
1fb3821b JD |
2743 | |
2744 | XSETFRAME (frame, f); | |
2745 | ||
31f16913 JD |
2746 | /* On a 64 bit machine, the event->data.l array members are 64 bits (long), |
2747 | but the x_property_data_to_lisp (or rather selection_data_to_lisp_data) | |
2748 | function expects them to be of size int (i.e. 32). So to be able to | |
2749 | use that function, put the data in the form it expects if format is 32. */ | |
2750 | ||
2751 | if (event->format == 32 && event->format < BITS_PER_LONG) | |
2752 | { | |
2753 | int i; | |
2754 | for (i = 0; i < 5; ++i) /* There are only 5 longs in a ClientMessage. */ | |
2755 | idata[i] = (int) event->data.l[i]; | |
2756 | data = (unsigned char *) idata; | |
2757 | } | |
2758 | ||
d2f14999 | 2759 | vec = Fmake_vector (make_number (4), Qnil); |
1fb3821b JD |
2760 | AREF (vec, 0) = SYMBOL_NAME (x_atom_to_symbol (FRAME_X_DISPLAY (f), |
2761 | event->message_type)); | |
2762 | AREF (vec, 1) = frame; | |
d2f14999 | 2763 | AREF (vec, 2) = make_number (event->format); |
1fb3821b | 2764 | AREF (vec, 3) = x_property_data_to_lisp (f, |
31f16913 | 2765 | data, |
1fb3821b JD |
2766 | event->message_type, |
2767 | event->format, | |
2768 | size); | |
2769 | ||
2770 | mouse_position_for_drop (f, &x, &y); | |
2771 | bufp->kind = DRAG_N_DROP_EVENT; | |
862c94ca | 2772 | bufp->frame_or_window = frame; |
1fb3821b JD |
2773 | bufp->timestamp = CurrentTime; |
2774 | bufp->x = make_number (x); | |
2775 | bufp->y = make_number (y); | |
862c94ca | 2776 | bufp->arg = vec; |
1fb3821b JD |
2777 | bufp->modifiers = 0; |
2778 | ||
2779 | return 1; | |
2780 | } | |
2781 | ||
2782 | DEFUN ("x-send-client-message", Fx_send_client_event, | |
2783 | Sx_send_client_message, 6, 6, 0, | |
2784 | doc: /* Send a client message of MESSAGE-TYPE to window DEST on DISPLAY. | |
2785 | ||
2786 | For DISPLAY, specify either a frame or a display name (a string). | |
2787 | If DISPLAY is nil, that stands for the selected frame's display. | |
2788 | DEST may be a number, in which case it is a Window id. The value 0 may | |
2789 | be used to send to the root window of the DISPLAY. | |
2790 | If DEST is a cons, it is converted to a 32 bit number | |
2791 | with the high 16 bits from the car and the lower 16 bit from the cdr. That | |
2792 | number is then used as a window id. | |
2793 | If DEST is a frame the event is sent to the outer window of that frame. | |
2794 | Nil means the currently selected frame. | |
2795 | If DEST is the string "PointerWindow" the event is sent to the window that | |
2796 | contains the pointer. If DEST is the string "InputFocus" the event is | |
2797 | sent to the window that has the input focus. | |
2798 | FROM is the frame sending the event. Use nil for currently selected frame. | |
2799 | MESSAGE-TYPE is the name of an Atom as a string. | |
2800 | FORMAT must be one of 8, 16 or 32 and determines the size of the values in | |
2801 | bits. VALUES is a list of numbers, cons and/or strings containing the values | |
2802 | to send. If a value is a string, it is converted to an Atom and the value of | |
2803 | the Atom is sent. If a value is a cons, it is converted to a 32 bit number | |
2804 | with the high 16 bits from the car and the lower 16 bit from the cdr. | |
2805 | If more values than fits into the event is given, the excessive values | |
2806 | are ignored. */) | |
2807 | (display, dest, from, message_type, format, values) | |
2808 | Lisp_Object display, dest, from, message_type, format, values; | |
2809 | { | |
2810 | struct x_display_info *dpyinfo = check_x_display_info (display); | |
2811 | Window wdest; | |
2812 | XEvent event; | |
2813 | Lisp_Object cons; | |
2814 | int size; | |
2815 | struct frame *f = check_x_frame (from); | |
1fb3821b JD |
2816 | int to_root; |
2817 | ||
2818 | CHECK_STRING (message_type); | |
2819 | CHECK_NUMBER (format); | |
2820 | CHECK_CONS (values); | |
2821 | ||
2822 | if (x_check_property_data (values) == -1) | |
2823 | error ("Bad data in VALUES, must be number, cons or string"); | |
2824 | ||
2825 | event.xclient.type = ClientMessage; | |
2826 | event.xclient.format = XFASTINT (format); | |
2827 | ||
2828 | if (event.xclient.format != 8 && event.xclient.format != 16 | |
2829 | && event.xclient.format != 32) | |
2830 | error ("FORMAT must be one of 8, 16 or 32"); | |
a0ecb2ac | 2831 | |
1fb3821b JD |
2832 | if (FRAMEP (dest) || NILP (dest)) |
2833 | { | |
2834 | struct frame *fdest = check_x_frame (dest); | |
2835 | wdest = FRAME_OUTER_WINDOW (fdest); | |
2836 | } | |
2837 | else if (STRINGP (dest)) | |
2838 | { | |
2839 | if (strcmp (SDATA (dest), "PointerWindow") == 0) | |
2840 | wdest = PointerWindow; | |
2841 | else if (strcmp (SDATA (dest), "InputFocus") == 0) | |
2842 | wdest = InputFocus; | |
2843 | else | |
2844 | error ("DEST as a string must be one of PointerWindow or InputFocus"); | |
2845 | } | |
2846 | else if (INTEGERP (dest)) | |
2847 | wdest = (Window) XFASTINT (dest); | |
2848 | else if (FLOATP (dest)) | |
ff59904a | 2849 | wdest = (Window) XFLOAT_DATA (dest); |
1fb3821b JD |
2850 | else if (CONSP (dest)) |
2851 | { | |
2852 | if (! NUMBERP (XCAR (dest)) || ! NUMBERP (XCDR (dest))) | |
2853 | error ("Both car and cdr for DEST must be numbers"); | |
2854 | else | |
2855 | wdest = (Window) cons_to_long (dest); | |
2856 | } | |
2857 | else | |
2858 | error ("DEST must be a frame, nil, string, number or cons"); | |
2859 | ||
2860 | if (wdest == 0) wdest = dpyinfo->root_window; | |
2861 | to_root = wdest == dpyinfo->root_window; | |
2862 | ||
2863 | for (cons = values, size = 0; CONSP (cons); cons = XCDR (cons), ++size) | |
2864 | ; | |
2865 | ||
2866 | BLOCK_INPUT; | |
2867 | ||
2868 | event.xclient.message_type | |
2869 | = XInternAtom (dpyinfo->display, SDATA (message_type), False); | |
2870 | event.xclient.display = dpyinfo->display; | |
2871 | ||
2872 | /* Some clients (metacity for example) expects sending window to be here | |
2873 | when sending to the root window. */ | |
2874 | event.xclient.window = to_root ? FRAME_OUTER_WINDOW (f) : wdest; | |
2875 | ||
6e816df5 | 2876 | |
e22cf39c JD |
2877 | memset (event.xclient.data.b, 0, sizeof (event.xclient.data.b)); |
2878 | x_fill_property_data (dpyinfo->display, values, event.xclient.data.b, | |
2879 | event.xclient.format); | |
31f16913 | 2880 | |
1fb3821b JD |
2881 | /* If event mask is 0 the event is sent to the client that created |
2882 | the destination window. But if we are sending to the root window, | |
2883 | there is no such client. Then we set the event mask to 0xffff. The | |
2884 | event then goes to clients selecting for events on the root window. */ | |
9ba8e10d | 2885 | x_catch_errors (dpyinfo->display); |
1fb3821b JD |
2886 | { |
2887 | int propagate = to_root ? False : True; | |
2888 | unsigned mask = to_root ? 0xffff : 0; | |
2889 | XSendEvent (dpyinfo->display, wdest, propagate, mask, &event); | |
2890 | XFlush (dpyinfo->display); | |
2891 | } | |
4545fa20 | 2892 | x_uncatch_errors (); |
1fb3821b JD |
2893 | UNBLOCK_INPUT; |
2894 | ||
2895 | return Qnil; | |
2896 | } | |
2897 | ||
2898 | \f | |
ede4db72 RS |
2899 | void |
2900 | syms_of_xselect () | |
2901 | { | |
ede4db72 RS |
2902 | defsubr (&Sx_get_selection_internal); |
2903 | defsubr (&Sx_own_selection_internal); | |
2904 | defsubr (&Sx_disown_selection_internal); | |
2905 | defsubr (&Sx_selection_owner_p); | |
2906 | defsubr (&Sx_selection_exists_p); | |
2907 | ||
2908 | #ifdef CUT_BUFFER_SUPPORT | |
a87ed99c RS |
2909 | defsubr (&Sx_get_cut_buffer_internal); |
2910 | defsubr (&Sx_store_cut_buffer_internal); | |
2911 | defsubr (&Sx_rotate_cut_buffers_internal); | |
ede4db72 RS |
2912 | #endif |
2913 | ||
1fb3821b JD |
2914 | defsubr (&Sx_get_atom_name); |
2915 | defsubr (&Sx_send_client_message); | |
9fc68699 | 2916 | defsubr (&Sx_register_dnd_atom); |
1fb3821b | 2917 | |
ede4db72 RS |
2918 | reading_selection_reply = Fcons (Qnil, Qnil); |
2919 | staticpro (&reading_selection_reply); | |
2920 | reading_selection_window = 0; | |
2921 | reading_which_selection = 0; | |
2922 | ||
2923 | property_change_wait_list = 0; | |
2f65feb6 | 2924 | prop_location_identifier = 0; |
ede4db72 RS |
2925 | property_change_reply = Fcons (Qnil, Qnil); |
2926 | staticpro (&property_change_reply); | |
2927 | ||
2928 | Vselection_alist = Qnil; | |
2929 | staticpro (&Vselection_alist); | |
2930 | ||
2931 | DEFVAR_LISP ("selection-converter-alist", &Vselection_converter_alist, | |
8c1a1077 PJ |
2932 | doc: /* An alist associating X Windows selection-types with functions. |
2933 | These functions are called to convert the selection, with three args: | |
2934 | the name of the selection (typically `PRIMARY', `SECONDARY', or `CLIPBOARD'); | |
2935 | a desired type to which the selection should be converted; | |
2936 | and the local selection value (whatever was given to `x-own-selection'). | |
2937 | ||
2938 | The function should return the value to send to the X server | |
2939 | \(typically a string). A return value of nil | |
2940 | means that the conversion could not be done. | |
2941 | A return value which is the symbol `NULL' | |
2942 | means that a side-effect was executed, | |
2943 | and there is no meaningful selection value. */); | |
ede4db72 RS |
2944 | Vselection_converter_alist = Qnil; |
2945 | ||
c917a8de | 2946 | DEFVAR_LISP ("x-lost-selection-functions", &Vx_lost_selection_functions, |
8c1a1077 PJ |
2947 | doc: /* A list of functions to be called when Emacs loses an X selection. |
2948 | \(This happens when some other X client makes its own selection | |
2949 | or when a Lisp program explicitly clears the selection.) | |
2950 | The functions are called with one argument, the selection type | |
2951 | \(a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'). */); | |
c917a8de | 2952 | Vx_lost_selection_functions = Qnil; |
ede4db72 | 2953 | |
c917a8de | 2954 | DEFVAR_LISP ("x-sent-selection-functions", &Vx_sent_selection_functions, |
8c1a1077 PJ |
2955 | doc: /* A list of functions to be called when Emacs answers a selection request. |
2956 | The functions are called with four arguments: | |
2957 | - the selection name (typically `PRIMARY', `SECONDARY', or `CLIPBOARD'); | |
2958 | - the selection-type which Emacs was asked to convert the | |
2959 | selection into before sending (for example, `STRING' or `LENGTH'); | |
2960 | - a flag indicating success or failure for responding to the request. | |
2961 | We might have failed (and declined the request) for any number of reasons, | |
2962 | including being asked for a selection that we no longer own, or being asked | |
2963 | to convert into a type that we don't know about or that is inappropriate. | |
2964 | This hook doesn't let you change the behavior of Emacs's selection replies, | |
2965 | it merely informs you that they have happened. */); | |
c917a8de | 2966 | Vx_sent_selection_functions = Qnil; |
ede4db72 | 2967 | |
93e4ce1b | 2968 | DEFVAR_LISP ("selection-coding-system", &Vselection_coding_system, |
8c1a1077 PJ |
2969 | doc: /* Coding system for communicating with other X clients. |
2970 | When sending or receiving text via cut_buffer, selection, and clipboard, | |
2971 | the text is encoded or decoded by this coding system. | |
5a79ea57 EZ |
2972 | The default value is `compound-text-with-extensions'. */); |
2973 | Vselection_coding_system = intern ("compound-text-with-extensions"); | |
2584c9ec | 2974 | |
16cd5029 | 2975 | DEFVAR_LISP ("next-selection-coding-system", &Vnext_selection_coding_system, |
8c1a1077 PJ |
2976 | doc: /* Coding system for the next communication with other X clients. |
2977 | Usually, `selection-coding-system' is used for communicating with | |
f8f8d464 JB |
2978 | other X clients. But, if this variable is set, it is used for the |
2979 | next communication only. After the communication, this variable is | |
8c1a1077 | 2980 | set to nil. */); |
16cd5029 KH |
2981 | Vnext_selection_coding_system = Qnil; |
2982 | ||
ede4db72 | 2983 | DEFVAR_INT ("x-selection-timeout", &x_selection_timeout, |
8c1a1077 PJ |
2984 | doc: /* Number of milliseconds to wait for a selection reply. |
2985 | If the selection owner doesn't reply in this time, we give up. | |
2986 | A value of 0 means wait as long as necessary. This is initialized from the | |
2987 | \"*selectionTimeout\" resource. */); | |
ede4db72 RS |
2988 | x_selection_timeout = 0; |
2989 | ||
2990 | QPRIMARY = intern ("PRIMARY"); staticpro (&QPRIMARY); | |
2991 | QSECONDARY = intern ("SECONDARY"); staticpro (&QSECONDARY); | |
2992 | QSTRING = intern ("STRING"); staticpro (&QSTRING); | |
2993 | QINTEGER = intern ("INTEGER"); staticpro (&QINTEGER); | |
2994 | QCLIPBOARD = intern ("CLIPBOARD"); staticpro (&QCLIPBOARD); | |
2995 | QTIMESTAMP = intern ("TIMESTAMP"); staticpro (&QTIMESTAMP); | |
2996 | QTEXT = intern ("TEXT"); staticpro (&QTEXT); | |
e6c7c988 | 2997 | QCOMPOUND_TEXT = intern ("COMPOUND_TEXT"); staticpro (&QCOMPOUND_TEXT); |
5109c8dd | 2998 | QUTF8_STRING = intern ("UTF8_STRING"); staticpro (&QUTF8_STRING); |
ede4db72 RS |
2999 | QDELETE = intern ("DELETE"); staticpro (&QDELETE); |
3000 | QMULTIPLE = intern ("MULTIPLE"); staticpro (&QMULTIPLE); | |
3001 | QINCR = intern ("INCR"); staticpro (&QINCR); | |
3002 | QEMACS_TMP = intern ("_EMACS_TMP_"); staticpro (&QEMACS_TMP); | |
3003 | QTARGETS = intern ("TARGETS"); staticpro (&QTARGETS); | |
3004 | QATOM = intern ("ATOM"); staticpro (&QATOM); | |
3005 | QATOM_PAIR = intern ("ATOM_PAIR"); staticpro (&QATOM_PAIR); | |
3006 | QNULL = intern ("NULL"); staticpro (&QNULL); | |
5a79ea57 EZ |
3007 | Qcompound_text_with_extensions = intern ("compound-text-with-extensions"); |
3008 | staticpro (&Qcompound_text_with_extensions); | |
ede4db72 RS |
3009 | |
3010 | #ifdef CUT_BUFFER_SUPPORT | |
3011 | QCUT_BUFFER0 = intern ("CUT_BUFFER0"); staticpro (&QCUT_BUFFER0); | |
3012 | QCUT_BUFFER1 = intern ("CUT_BUFFER1"); staticpro (&QCUT_BUFFER1); | |
3013 | QCUT_BUFFER2 = intern ("CUT_BUFFER2"); staticpro (&QCUT_BUFFER2); | |
3014 | QCUT_BUFFER3 = intern ("CUT_BUFFER3"); staticpro (&QCUT_BUFFER3); | |
3015 | QCUT_BUFFER4 = intern ("CUT_BUFFER4"); staticpro (&QCUT_BUFFER4); | |
3016 | QCUT_BUFFER5 = intern ("CUT_BUFFER5"); staticpro (&QCUT_BUFFER5); | |
3017 | QCUT_BUFFER6 = intern ("CUT_BUFFER6"); staticpro (&QCUT_BUFFER6); | |
3018 | QCUT_BUFFER7 = intern ("CUT_BUFFER7"); staticpro (&QCUT_BUFFER7); | |
3019 | #endif | |
3020 | ||
e57ad4d8 KH |
3021 | Qforeign_selection = intern ("foreign-selection"); |
3022 | staticpro (&Qforeign_selection); | |
ede4db72 | 3023 | } |
ab5796a9 MB |
3024 | |
3025 | /* arch-tag: 7c293b0f-9918-4f69-8ac7-03e142307236 | |
3026 | (do not change this comment) */ |