Commit | Line | Data |
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2408b3a1 | 1 | /* X Selection processing for Emacs. |
0b5538bd | 2 | Copyright (C) 1993, 1994, 1995, 1996, 1997, 2000, 2001, 2002, 2003, |
8cabe764 | 3 | 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc. |
ede4db72 RS |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
9ec0b715 | 7 | GNU Emacs is free software: you can redistribute it and/or modify |
ede4db72 | 8 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
9 | the Free Software Foundation, either version 3 of the License, or |
10 | (at your option) any later version. | |
ede4db72 RS |
11 | |
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
ede4db72 | 19 | |
c6c5df7f | 20 | |
ede4db72 RS |
21 | /* Rewritten by jwz */ |
22 | ||
18160b98 | 23 | #include <config.h> |
5b698285 | 24 | #include <stdio.h> /* termhooks.h needs this */ |
678b3958 KS |
25 | |
26 | #ifdef HAVE_SYS_TYPES_H | |
27 | #include <sys/types.h> | |
28 | #endif | |
29 | #ifdef HAVE_UNISTD_H | |
30 | #include <unistd.h> | |
31 | #endif | |
32 | ||
ede4db72 RS |
33 | #include "lisp.h" |
34 | #include "xterm.h" /* for all of the X includes */ | |
7da64e5c RS |
35 | #include "dispextern.h" /* frame.h seems to want this */ |
36 | #include "frame.h" /* Need this to get the X window of selected_frame */ | |
9ac0d9e0 | 37 | #include "blockinput.h" |
5faa9b45 | 38 | #include "buffer.h" |
dfcf069d | 39 | #include "process.h" |
1fb3821b | 40 | #include "termhooks.h" |
dd0fe424 | 41 | #include "keyboard.h" |
1fb3821b JD |
42 | |
43 | #include <X11/Xproto.h> | |
7da64e5c | 44 | |
d9c0d4a3 GM |
45 | struct prop_location; |
46 | ||
47 | static Lisp_Object x_atom_to_symbol P_ ((Display *dpy, Atom atom)); | |
48 | static Atom symbol_to_x_atom P_ ((struct x_display_info *, Display *, | |
49 | Lisp_Object)); | |
50 | static void x_own_selection P_ ((Lisp_Object, Lisp_Object)); | |
5109c8dd | 51 | static Lisp_Object x_get_local_selection P_ ((Lisp_Object, Lisp_Object, int)); |
d9c0d4a3 GM |
52 | static void x_decline_selection_request P_ ((struct input_event *)); |
53 | static Lisp_Object x_selection_request_lisp_error P_ ((Lisp_Object)); | |
54 | static Lisp_Object queue_selection_requests_unwind P_ ((Lisp_Object)); | |
55 | static Lisp_Object some_frame_on_display P_ ((struct x_display_info *)); | |
c525d842 | 56 | static Lisp_Object x_catch_errors_unwind P_ ((Lisp_Object)); |
d9c0d4a3 GM |
57 | static void x_reply_selection_request P_ ((struct input_event *, int, |
58 | unsigned char *, int, Atom)); | |
59 | static int waiting_for_other_props_on_window P_ ((Display *, Window)); | |
60 | static struct prop_location *expect_property_change P_ ((Display *, Window, | |
61 | Atom, int)); | |
62 | static void unexpect_property_change P_ ((struct prop_location *)); | |
63 | static Lisp_Object wait_for_property_change_unwind P_ ((Lisp_Object)); | |
64 | static void wait_for_property_change P_ ((struct prop_location *)); | |
3a42401d JD |
65 | static Lisp_Object x_get_foreign_selection P_ ((Lisp_Object, |
66 | Lisp_Object, | |
67 | Lisp_Object)); | |
d9c0d4a3 GM |
68 | static void x_get_window_property P_ ((Display *, Window, Atom, |
69 | unsigned char **, int *, | |
70 | Atom *, int *, unsigned long *, int)); | |
71 | static void receive_incremental_selection P_ ((Display *, Window, Atom, | |
72 | Lisp_Object, unsigned, | |
73 | unsigned char **, int *, | |
74 | Atom *, int *, unsigned long *)); | |
75 | static Lisp_Object x_get_window_property_as_lisp_data P_ ((Display *, | |
76 | Window, Atom, | |
77 | Lisp_Object, Atom)); | |
78 | static Lisp_Object selection_data_to_lisp_data P_ ((Display *, unsigned char *, | |
79 | int, Atom, int)); | |
80 | static void lisp_data_to_selection_data P_ ((Display *, Lisp_Object, | |
81 | unsigned char **, Atom *, | |
82 | unsigned *, int *, int *)); | |
83 | static Lisp_Object clean_local_selection_data P_ ((Lisp_Object)); | |
84 | static void initialize_cut_buffers P_ ((Display *, Window)); | |
85 | ||
86 | ||
87 | /* Printing traces to stderr. */ | |
88 | ||
89 | #ifdef TRACE_SELECTION | |
90 | #define TRACE0(fmt) \ | |
91 | fprintf (stderr, "%d: " fmt "\n", getpid ()) | |
92 | #define TRACE1(fmt, a0) \ | |
93 | fprintf (stderr, "%d: " fmt "\n", getpid (), a0) | |
94 | #define TRACE2(fmt, a0, a1) \ | |
95 | fprintf (stderr, "%d: " fmt "\n", getpid (), a0, a1) | |
9c3ad9e1 JD |
96 | #define TRACE3(fmt, a0, a1, a2) \ |
97 | fprintf (stderr, "%d: " fmt "\n", getpid (), a0, a1, a2) | |
d9c0d4a3 GM |
98 | #else |
99 | #define TRACE0(fmt) (void) 0 | |
100 | #define TRACE1(fmt, a0) (void) 0 | |
101 | #define TRACE2(fmt, a0, a1) (void) 0 | |
9c3ad9e1 | 102 | #define TRACE3(fmt, a0, a1) (void) 0 |
d9c0d4a3 GM |
103 | #endif |
104 | ||
105 | ||
ede4db72 RS |
106 | #define CUT_BUFFER_SUPPORT |
107 | ||
ede4db72 RS |
108 | Lisp_Object QPRIMARY, QSECONDARY, QSTRING, QINTEGER, QCLIPBOARD, QTIMESTAMP, |
109 | QTEXT, QDELETE, QMULTIPLE, QINCR, QEMACS_TMP, QTARGETS, QATOM, QNULL, | |
110 | QATOM_PAIR; | |
111 | ||
e6c7c988 | 112 | Lisp_Object QCOMPOUND_TEXT; /* This is a type of selection. */ |
5109c8dd | 113 | Lisp_Object QUTF8_STRING; /* This is a type of selection. */ |
e6c7c988 | 114 | |
5a79ea57 | 115 | Lisp_Object Qcompound_text_with_extensions; |
fbbe0ace | 116 | |
ede4db72 RS |
117 | #ifdef CUT_BUFFER_SUPPORT |
118 | Lisp_Object QCUT_BUFFER0, QCUT_BUFFER1, QCUT_BUFFER2, QCUT_BUFFER3, | |
119 | QCUT_BUFFER4, QCUT_BUFFER5, QCUT_BUFFER6, QCUT_BUFFER7; | |
120 | #endif | |
121 | ||
c917a8de SM |
122 | static Lisp_Object Vx_lost_selection_functions; |
123 | static Lisp_Object Vx_sent_selection_functions; | |
e57ad4d8 KH |
124 | static Lisp_Object Qforeign_selection; |
125 | ||
ede4db72 RS |
126 | /* If this is a smaller number than the max-request-size of the display, |
127 | emacs will use INCR selection transfer when the selection is larger | |
128 | than this. The max-request-size is usually around 64k, so if you want | |
1b65481e | 129 | emacs to use incremental selection transfers when the selection is |
ede4db72 | 130 | smaller than that, set this. I added this mostly for debugging the |
8f4f023f | 131 | incremental transfer stuff, but it might improve server performance. */ |
ede4db72 RS |
132 | #define MAX_SELECTION_QUANTUM 0xFFFFFF |
133 | ||
c3498e64 | 134 | #define SELECTION_QUANTUM(dpy) ((XMaxRequestSize(dpy) << 2) - 100) |
ede4db72 | 135 | |
7da64e5c | 136 | /* The timestamp of the last input event Emacs received from the X server. */ |
29674445 KH |
137 | /* Defined in keyboard.c. */ |
138 | extern unsigned long last_event_timestamp; | |
ede4db72 RS |
139 | |
140 | /* This is an association list whose elements are of the form | |
118bd841 RS |
141 | ( SELECTION-NAME SELECTION-VALUE SELECTION-TIMESTAMP FRAME) |
142 | SELECTION-NAME is a lisp symbol, whose name is the name of an X Atom. | |
143 | SELECTION-VALUE is the value that emacs owns for that selection. | |
ede4db72 | 144 | It may be any kind of Lisp object. |
118bd841 | 145 | SELECTION-TIMESTAMP is the time at which emacs began owning this selection, |
ede4db72 | 146 | as a cons of two 16-bit numbers (making a 32 bit time.) |
118bd841 RS |
147 | FRAME is the frame for which we made the selection. |
148 | If there is an entry in this alist, then it can be assumed that Emacs owns | |
ede4db72 RS |
149 | that selection. |
150 | The only (eq) parts of this list that are visible from Lisp are the | |
8f4f023f RS |
151 | selection-values. */ |
152 | static Lisp_Object Vselection_alist; | |
ede4db72 RS |
153 | |
154 | /* This is an alist whose CARs are selection-types (whose names are the same | |
155 | as the names of X Atoms) and whose CDRs are the names of Lisp functions to | |
1b65481e | 156 | call to convert the given Emacs selection value to a string representing |
ede4db72 | 157 | the given selection type. This is for Lisp-level extension of the emacs |
8f4f023f RS |
158 | selection handling. */ |
159 | static Lisp_Object Vselection_converter_alist; | |
ede4db72 RS |
160 | |
161 | /* If the selection owner takes too long to reply to a selection request, | |
8f4f023f | 162 | we give up on it. This is in milliseconds (0 = no timeout.) */ |
31ade731 | 163 | static EMACS_INT x_selection_timeout; |
ede4db72 | 164 | |
dd0fe424 KS |
165 | |
166 | \f | |
678b3958 KS |
167 | /* Define a queue to save up SELECTION_REQUEST_EVENT events for later |
168 | handling. */ | |
dd0fe424 KS |
169 | |
170 | struct selection_event_queue | |
171 | { | |
172 | struct input_event event; | |
173 | struct selection_event_queue *next; | |
174 | }; | |
175 | ||
176 | static struct selection_event_queue *selection_queue; | |
177 | ||
678b3958 | 178 | /* Nonzero means queue up SELECTION_REQUEST_EVENT events. */ |
dd0fe424 KS |
179 | |
180 | static int x_queue_selection_requests; | |
181 | ||
678b3958 | 182 | /* Queue up an SELECTION_REQUEST_EVENT *EVENT, to be processed later. */ |
dd0fe424 KS |
183 | |
184 | static void | |
185 | x_queue_event (event) | |
186 | struct input_event *event; | |
187 | { | |
188 | struct selection_event_queue *queue_tmp; | |
189 | ||
678b3958 KS |
190 | /* Don't queue repeated requests. |
191 | This only happens for large requests which uses the incremental protocol. */ | |
dd0fe424 KS |
192 | for (queue_tmp = selection_queue; queue_tmp; queue_tmp = queue_tmp->next) |
193 | { | |
194 | if (!bcmp (&queue_tmp->event, event, sizeof (*event))) | |
195 | { | |
678b3958 KS |
196 | TRACE1 ("DECLINE DUP SELECTION EVENT %08lx", (unsigned long)queue_tmp); |
197 | x_decline_selection_request (event); | |
dd0fe424 KS |
198 | return; |
199 | } | |
200 | } | |
201 | ||
202 | queue_tmp | |
203 | = (struct selection_event_queue *) xmalloc (sizeof (struct selection_event_queue)); | |
204 | ||
205 | if (queue_tmp != NULL) | |
206 | { | |
678b3958 | 207 | TRACE1 ("QUEUE SELECTION EVENT %08lx", (unsigned long)queue_tmp); |
dd0fe424 KS |
208 | queue_tmp->event = *event; |
209 | queue_tmp->next = selection_queue; | |
210 | selection_queue = queue_tmp; | |
211 | } | |
212 | } | |
213 | ||
678b3958 | 214 | /* Start queuing SELECTION_REQUEST_EVENT events. */ |
dd0fe424 KS |
215 | |
216 | static void | |
217 | x_start_queuing_selection_requests () | |
218 | { | |
219 | if (x_queue_selection_requests) | |
220 | abort (); | |
221 | ||
222 | x_queue_selection_requests++; | |
223 | TRACE1 ("x_start_queuing_selection_requests %d", x_queue_selection_requests); | |
224 | } | |
225 | ||
678b3958 | 226 | /* Stop queuing SELECTION_REQUEST_EVENT events. */ |
dd0fe424 KS |
227 | |
228 | static void | |
229 | x_stop_queuing_selection_requests () | |
230 | { | |
231 | TRACE1 ("x_stop_queuing_selection_requests %d", x_queue_selection_requests); | |
232 | --x_queue_selection_requests; | |
233 | ||
234 | /* Take all the queued events and put them back | |
235 | so that they get processed afresh. */ | |
236 | ||
237 | while (selection_queue != NULL) | |
238 | { | |
239 | struct selection_event_queue *queue_tmp = selection_queue; | |
678b3958 | 240 | TRACE1 ("RESTORE SELECTION EVENT %08lx", (unsigned long)queue_tmp); |
dd0fe424 KS |
241 | kbd_buffer_unget_event (&queue_tmp->event); |
242 | selection_queue = queue_tmp->next; | |
243 | xfree ((char *)queue_tmp); | |
244 | } | |
245 | } | |
246 | \f | |
247 | ||
1b65481e | 248 | /* This converts a Lisp symbol to a server Atom, avoiding a server |
ede4db72 RS |
249 | roundtrip whenever possible. */ |
250 | ||
251 | static Atom | |
5c3a351a RS |
252 | symbol_to_x_atom (dpyinfo, display, sym) |
253 | struct x_display_info *dpyinfo; | |
ede4db72 RS |
254 | Display *display; |
255 | Lisp_Object sym; | |
256 | { | |
257 | Atom val; | |
258 | if (NILP (sym)) return 0; | |
259 | if (EQ (sym, QPRIMARY)) return XA_PRIMARY; | |
260 | if (EQ (sym, QSECONDARY)) return XA_SECONDARY; | |
261 | if (EQ (sym, QSTRING)) return XA_STRING; | |
262 | if (EQ (sym, QINTEGER)) return XA_INTEGER; | |
263 | if (EQ (sym, QATOM)) return XA_ATOM; | |
5c3a351a RS |
264 | if (EQ (sym, QCLIPBOARD)) return dpyinfo->Xatom_CLIPBOARD; |
265 | if (EQ (sym, QTIMESTAMP)) return dpyinfo->Xatom_TIMESTAMP; | |
266 | if (EQ (sym, QTEXT)) return dpyinfo->Xatom_TEXT; | |
e6c7c988 | 267 | if (EQ (sym, QCOMPOUND_TEXT)) return dpyinfo->Xatom_COMPOUND_TEXT; |
5109c8dd | 268 | if (EQ (sym, QUTF8_STRING)) return dpyinfo->Xatom_UTF8_STRING; |
5c3a351a RS |
269 | if (EQ (sym, QDELETE)) return dpyinfo->Xatom_DELETE; |
270 | if (EQ (sym, QMULTIPLE)) return dpyinfo->Xatom_MULTIPLE; | |
271 | if (EQ (sym, QINCR)) return dpyinfo->Xatom_INCR; | |
272 | if (EQ (sym, QEMACS_TMP)) return dpyinfo->Xatom_EMACS_TMP; | |
273 | if (EQ (sym, QTARGETS)) return dpyinfo->Xatom_TARGETS; | |
274 | if (EQ (sym, QNULL)) return dpyinfo->Xatom_NULL; | |
ede4db72 RS |
275 | #ifdef CUT_BUFFER_SUPPORT |
276 | if (EQ (sym, QCUT_BUFFER0)) return XA_CUT_BUFFER0; | |
277 | if (EQ (sym, QCUT_BUFFER1)) return XA_CUT_BUFFER1; | |
278 | if (EQ (sym, QCUT_BUFFER2)) return XA_CUT_BUFFER2; | |
279 | if (EQ (sym, QCUT_BUFFER3)) return XA_CUT_BUFFER3; | |
280 | if (EQ (sym, QCUT_BUFFER4)) return XA_CUT_BUFFER4; | |
281 | if (EQ (sym, QCUT_BUFFER5)) return XA_CUT_BUFFER5; | |
282 | if (EQ (sym, QCUT_BUFFER6)) return XA_CUT_BUFFER6; | |
283 | if (EQ (sym, QCUT_BUFFER7)) return XA_CUT_BUFFER7; | |
284 | #endif | |
285 | if (!SYMBOLP (sym)) abort (); | |
286 | ||
d5db4077 | 287 | TRACE1 (" XInternAtom %s", (char *) SDATA (SYMBOL_NAME (sym))); |
ede4db72 | 288 | BLOCK_INPUT; |
d5db4077 | 289 | val = XInternAtom (display, (char *) SDATA (SYMBOL_NAME (sym)), False); |
ede4db72 RS |
290 | UNBLOCK_INPUT; |
291 | return val; | |
292 | } | |
293 | ||
294 | ||
295 | /* This converts a server Atom to a Lisp symbol, avoiding server roundtrips | |
296 | and calls to intern whenever possible. */ | |
297 | ||
298 | static Lisp_Object | |
d9c0d4a3 GM |
299 | x_atom_to_symbol (dpy, atom) |
300 | Display *dpy; | |
ede4db72 RS |
301 | Atom atom; |
302 | { | |
d9c0d4a3 | 303 | struct x_display_info *dpyinfo; |
ede4db72 RS |
304 | char *str; |
305 | Lisp_Object val; | |
1b65481e | 306 | |
d9c0d4a3 GM |
307 | if (! atom) |
308 | return Qnil; | |
1b65481e | 309 | |
7da64e5c RS |
310 | switch (atom) |
311 | { | |
312 | case XA_PRIMARY: | |
313 | return QPRIMARY; | |
314 | case XA_SECONDARY: | |
315 | return QSECONDARY; | |
316 | case XA_STRING: | |
317 | return QSTRING; | |
318 | case XA_INTEGER: | |
319 | return QINTEGER; | |
320 | case XA_ATOM: | |
321 | return QATOM; | |
ede4db72 | 322 | #ifdef CUT_BUFFER_SUPPORT |
7da64e5c RS |
323 | case XA_CUT_BUFFER0: |
324 | return QCUT_BUFFER0; | |
325 | case XA_CUT_BUFFER1: | |
326 | return QCUT_BUFFER1; | |
327 | case XA_CUT_BUFFER2: | |
328 | return QCUT_BUFFER2; | |
329 | case XA_CUT_BUFFER3: | |
330 | return QCUT_BUFFER3; | |
331 | case XA_CUT_BUFFER4: | |
332 | return QCUT_BUFFER4; | |
333 | case XA_CUT_BUFFER5: | |
334 | return QCUT_BUFFER5; | |
335 | case XA_CUT_BUFFER6: | |
336 | return QCUT_BUFFER6; | |
337 | case XA_CUT_BUFFER7: | |
338 | return QCUT_BUFFER7; | |
ede4db72 | 339 | #endif |
7da64e5c RS |
340 | } |
341 | ||
d9c0d4a3 | 342 | dpyinfo = x_display_info_for_display (dpy); |
5c3a351a | 343 | if (atom == dpyinfo->Xatom_CLIPBOARD) |
7da64e5c | 344 | return QCLIPBOARD; |
5c3a351a | 345 | if (atom == dpyinfo->Xatom_TIMESTAMP) |
7da64e5c | 346 | return QTIMESTAMP; |
5c3a351a | 347 | if (atom == dpyinfo->Xatom_TEXT) |
7da64e5c | 348 | return QTEXT; |
e6c7c988 KH |
349 | if (atom == dpyinfo->Xatom_COMPOUND_TEXT) |
350 | return QCOMPOUND_TEXT; | |
5109c8dd KH |
351 | if (atom == dpyinfo->Xatom_UTF8_STRING) |
352 | return QUTF8_STRING; | |
5c3a351a | 353 | if (atom == dpyinfo->Xatom_DELETE) |
7da64e5c | 354 | return QDELETE; |
5c3a351a | 355 | if (atom == dpyinfo->Xatom_MULTIPLE) |
7da64e5c | 356 | return QMULTIPLE; |
5c3a351a | 357 | if (atom == dpyinfo->Xatom_INCR) |
7da64e5c | 358 | return QINCR; |
5c3a351a | 359 | if (atom == dpyinfo->Xatom_EMACS_TMP) |
7da64e5c | 360 | return QEMACS_TMP; |
5c3a351a | 361 | if (atom == dpyinfo->Xatom_TARGETS) |
7da64e5c | 362 | return QTARGETS; |
5c3a351a | 363 | if (atom == dpyinfo->Xatom_NULL) |
7da64e5c | 364 | return QNULL; |
ede4db72 RS |
365 | |
366 | BLOCK_INPUT; | |
d9c0d4a3 | 367 | str = XGetAtomName (dpy, atom); |
ede4db72 | 368 | UNBLOCK_INPUT; |
d9c0d4a3 | 369 | TRACE1 ("XGetAtomName --> %s", str); |
ede4db72 RS |
370 | if (! str) return Qnil; |
371 | val = intern (str); | |
372 | BLOCK_INPUT; | |
0158abbc | 373 | /* This was allocated by Xlib, so use XFree. */ |
ede4db72 RS |
374 | XFree (str); |
375 | UNBLOCK_INPUT; | |
376 | return val; | |
377 | } | |
8a89415e | 378 | \f |
ede4db72 | 379 | /* Do protocol to assert ourself as a selection owner. |
1b65481e | 380 | Update the Vselection_alist so that we can reply to later requests for |
ede4db72 RS |
381 | our selection. */ |
382 | ||
383 | static void | |
384 | x_own_selection (selection_name, selection_value) | |
385 | Lisp_Object selection_name, selection_value; | |
386 | { | |
378c33ca | 387 | struct frame *sf = SELECTED_FRAME (); |
428a555e KL |
388 | Window selecting_window; |
389 | Display *display; | |
7da64e5c | 390 | Time time = last_event_timestamp; |
ede4db72 | 391 | Atom selection_atom; |
428a555e | 392 | struct x_display_info *dpyinfo; |
ede4db72 | 393 | |
428a555e KL |
394 | if (! FRAME_X_P (sf)) |
395 | return; | |
396 | ||
397 | selecting_window = FRAME_X_WINDOW (sf); | |
398 | display = FRAME_X_DISPLAY (sf); | |
399 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
400 | ||
b7826503 | 401 | CHECK_SYMBOL (selection_name); |
5c3a351a | 402 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection_name); |
ede4db72 RS |
403 | |
404 | BLOCK_INPUT; | |
9ba8e10d | 405 | x_catch_errors (display); |
ede4db72 | 406 | XSetSelectionOwner (display, selection_atom, selecting_window, time); |
a7b24d46 | 407 | x_check_errors (display, "Can't set selection: %s"); |
4545fa20 | 408 | x_uncatch_errors (); |
ede4db72 RS |
409 | UNBLOCK_INPUT; |
410 | ||
411 | /* Now update the local cache */ | |
412 | { | |
413 | Lisp_Object selection_time; | |
414 | Lisp_Object selection_data; | |
415 | Lisp_Object prev_value; | |
416 | ||
417 | selection_time = long_to_cons ((unsigned long) time); | |
418 | selection_data = Fcons (selection_name, | |
419 | Fcons (selection_value, | |
118bd841 | 420 | Fcons (selection_time, |
378c33ca | 421 | Fcons (selected_frame, Qnil)))); |
ede4db72 RS |
422 | prev_value = assq_no_quit (selection_name, Vselection_alist); |
423 | ||
424 | Vselection_alist = Fcons (selection_data, Vselection_alist); | |
425 | ||
426 | /* If we already owned the selection, remove the old selection data. | |
427 | Perhaps we should destructively modify it instead. | |
428 | Don't use Fdelq as that may QUIT. */ | |
429 | if (!NILP (prev_value)) | |
430 | { | |
431 | Lisp_Object rest; /* we know it's not the CAR, so it's easy. */ | |
99784d63 | 432 | for (rest = Vselection_alist; CONSP (rest); rest = XCDR (rest)) |
8e713be6 | 433 | if (EQ (prev_value, Fcar (XCDR (rest)))) |
ede4db72 | 434 | { |
f3fbd155 | 435 | XSETCDR (rest, Fcdr (XCDR (rest))); |
ede4db72 RS |
436 | break; |
437 | } | |
438 | } | |
439 | } | |
440 | } | |
441 | \f | |
442 | /* Given a selection-name and desired type, look up our local copy of | |
443 | the selection value and convert it to the type. | |
444 | The value is nil or a string. | |
5109c8dd KH |
445 | This function is used both for remote requests (LOCAL_REQUEST is zero) |
446 | and for local x-get-selection-internal (LOCAL_REQUEST is nonzero). | |
ede4db72 RS |
447 | |
448 | This calls random Lisp code, and may signal or gc. */ | |
449 | ||
450 | static Lisp_Object | |
5109c8dd | 451 | x_get_local_selection (selection_symbol, target_type, local_request) |
ede4db72 | 452 | Lisp_Object selection_symbol, target_type; |
5109c8dd | 453 | int local_request; |
ede4db72 RS |
454 | { |
455 | Lisp_Object local_value; | |
456 | Lisp_Object handler_fn, value, type, check; | |
457 | int count; | |
458 | ||
459 | local_value = assq_no_quit (selection_symbol, Vselection_alist); | |
460 | ||
461 | if (NILP (local_value)) return Qnil; | |
462 | ||
463 | /* TIMESTAMP and MULTIPLE are special cases 'cause that's easiest. */ | |
464 | if (EQ (target_type, QTIMESTAMP)) | |
465 | { | |
466 | handler_fn = Qnil; | |
8e713be6 | 467 | value = XCAR (XCDR (XCDR (local_value))); |
ede4db72 RS |
468 | } |
469 | #if 0 | |
470 | else if (EQ (target_type, QDELETE)) | |
471 | { | |
472 | handler_fn = Qnil; | |
473 | Fx_disown_selection_internal | |
474 | (selection_symbol, | |
8e713be6 | 475 | XCAR (XCDR (XCDR (local_value)))); |
ede4db72 RS |
476 | value = QNULL; |
477 | } | |
478 | #endif | |
479 | ||
480 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
481 | else if (CONSP (target_type) | |
8e713be6 | 482 | && XCAR (target_type) == QMULTIPLE) |
ede4db72 | 483 | { |
9d2d1dd8 KH |
484 | Lisp_Object pairs; |
485 | int size; | |
ede4db72 | 486 | int i; |
8e713be6 | 487 | pairs = XCDR (target_type); |
9d2d1dd8 | 488 | size = XVECTOR (pairs)->size; |
ede4db72 RS |
489 | /* If the target is MULTIPLE, then target_type looks like |
490 | (MULTIPLE . [[SELECTION1 TARGET1] [SELECTION2 TARGET2] ... ]) | |
491 | We modify the second element of each pair in the vector and | |
492 | return it as [[SELECTION1 <value1>] [SELECTION2 <value2>] ... ] | |
493 | */ | |
494 | for (i = 0; i < size; i++) | |
495 | { | |
9d2d1dd8 KH |
496 | Lisp_Object pair; |
497 | pair = XVECTOR (pairs)->contents [i]; | |
ede4db72 RS |
498 | XVECTOR (pair)->contents [1] |
499 | = x_get_local_selection (XVECTOR (pair)->contents [0], | |
5109c8dd KH |
500 | XVECTOR (pair)->contents [1], |
501 | local_request); | |
ede4db72 RS |
502 | } |
503 | return pairs; | |
504 | } | |
505 | #endif | |
506 | else | |
507 | { | |
508 | /* Don't allow a quit within the converter. | |
509 | When the user types C-g, he would be surprised | |
510 | if by luck it came during a converter. */ | |
aed13378 | 511 | count = SPECPDL_INDEX (); |
ede4db72 RS |
512 | specbind (Qinhibit_quit, Qt); |
513 | ||
b7826503 | 514 | CHECK_SYMBOL (target_type); |
ede4db72 | 515 | handler_fn = Fcdr (Fassq (target_type, Vselection_converter_alist)); |
4f06187f RS |
516 | /* gcpro is not needed here since nothing but HANDLER_FN |
517 | is live, and that ought to be a symbol. */ | |
518 | ||
1eb4d468 RS |
519 | if (!NILP (handler_fn)) |
520 | value = call3 (handler_fn, | |
5109c8dd | 521 | selection_symbol, (local_request ? Qnil : target_type), |
8e713be6 | 522 | XCAR (XCDR (local_value))); |
1eb4d468 RS |
523 | else |
524 | value = Qnil; | |
ede4db72 RS |
525 | unbind_to (count, Qnil); |
526 | } | |
527 | ||
528 | /* Make sure this value is of a type that we could transmit | |
529 | to another X client. */ | |
a87ed99c | 530 | |
ede4db72 RS |
531 | check = value; |
532 | if (CONSP (value) | |
8e713be6 KR |
533 | && SYMBOLP (XCAR (value))) |
534 | type = XCAR (value), | |
535 | check = XCDR (value); | |
1b65481e | 536 | |
ede4db72 RS |
537 | if (STRINGP (check) |
538 | || VECTORP (check) | |
539 | || SYMBOLP (check) | |
7da64e5c | 540 | || INTEGERP (check) |
ede4db72 RS |
541 | || NILP (value)) |
542 | return value; | |
a87ed99c | 543 | /* Check for a value that cons_to_long could handle. */ |
ede4db72 | 544 | else if (CONSP (check) |
8e713be6 KR |
545 | && INTEGERP (XCAR (check)) |
546 | && (INTEGERP (XCDR (check)) | |
ede4db72 | 547 | || |
8e713be6 KR |
548 | (CONSP (XCDR (check)) |
549 | && INTEGERP (XCAR (XCDR (check))) | |
550 | && NILP (XCDR (XCDR (check)))))) | |
ede4db72 | 551 | return value; |
4d30ce50 KS |
552 | |
553 | signal_error ("Invalid data returned by selection-conversion function", | |
554 | list2 (handler_fn, value)); | |
ede4db72 RS |
555 | } |
556 | \f | |
557 | /* Subroutines of x_reply_selection_request. */ | |
558 | ||
5d0ba25b | 559 | /* Send a SelectionNotify event to the requestor with property=None, |
ede4db72 RS |
560 | meaning we were unable to do what they wanted. */ |
561 | ||
562 | static void | |
563 | x_decline_selection_request (event) | |
564 | struct input_event *event; | |
565 | { | |
566 | XSelectionEvent reply; | |
1b65481e | 567 | |
ede4db72 RS |
568 | reply.type = SelectionNotify; |
569 | reply.display = SELECTION_EVENT_DISPLAY (event); | |
5d0ba25b | 570 | reply.requestor = SELECTION_EVENT_REQUESTOR (event); |
ede4db72 RS |
571 | reply.selection = SELECTION_EVENT_SELECTION (event); |
572 | reply.time = SELECTION_EVENT_TIME (event); | |
573 | reply.target = SELECTION_EVENT_TARGET (event); | |
574 | reply.property = None; | |
575 | ||
d9c0d4a3 GM |
576 | /* The reason for the error may be that the receiver has |
577 | died in the meantime. Handle that case. */ | |
ede4db72 | 578 | BLOCK_INPUT; |
9ba8e10d | 579 | x_catch_errors (reply.display); |
d9c0d4a3 | 580 | XSendEvent (reply.display, reply.requestor, False, 0L, (XEvent *) &reply); |
5c3a351a | 581 | XFlush (reply.display); |
4545fa20 | 582 | x_uncatch_errors (); |
ede4db72 RS |
583 | UNBLOCK_INPUT; |
584 | } | |
585 | ||
586 | /* This is the selection request currently being processed. | |
587 | It is set to zero when the request is fully processed. */ | |
588 | static struct input_event *x_selection_current_request; | |
589 | ||
ca29f2b8 GM |
590 | /* Display info in x_selection_request. */ |
591 | ||
592 | static struct x_display_info *selection_request_dpyinfo; | |
593 | ||
ede4db72 | 594 | /* Used as an unwind-protect clause so that, if a selection-converter signals |
2a1a4c9d | 595 | an error, we tell the requester that we were unable to do what they wanted |
ede4db72 RS |
596 | before we throw to top-level or go into the debugger or whatever. */ |
597 | ||
598 | static Lisp_Object | |
599 | x_selection_request_lisp_error (ignore) | |
600 | Lisp_Object ignore; | |
601 | { | |
ca29f2b8 GM |
602 | if (x_selection_current_request != 0 |
603 | && selection_request_dpyinfo->display) | |
ede4db72 RS |
604 | x_decline_selection_request (x_selection_current_request); |
605 | return Qnil; | |
606 | } | |
c525d842 CY |
607 | |
608 | static Lisp_Object | |
609 | x_catch_errors_unwind (dummy) | |
610 | Lisp_Object dummy; | |
611 | { | |
612 | BLOCK_INPUT; | |
613 | x_uncatch_errors (); | |
614 | UNBLOCK_INPUT; | |
6f10509c | 615 | return Qnil; |
c525d842 | 616 | } |
ede4db72 | 617 | \f |
d1f21a66 RS |
618 | |
619 | /* This stuff is so that INCR selections are reentrant (that is, so we can | |
620 | be servicing multiple INCR selection requests simultaneously.) I haven't | |
621 | actually tested that yet. */ | |
622 | ||
623 | /* Keep a list of the property changes that are awaited. */ | |
624 | ||
625 | struct prop_location | |
626 | { | |
627 | int identifier; | |
628 | Display *display; | |
629 | Window window; | |
630 | Atom property; | |
631 | int desired_state; | |
632 | int arrived; | |
633 | struct prop_location *next; | |
634 | }; | |
635 | ||
636 | static struct prop_location *expect_property_change (); | |
637 | static void wait_for_property_change (); | |
638 | static void unexpect_property_change (); | |
639 | static int waiting_for_other_props_on_window (); | |
640 | ||
641 | static int prop_location_identifier; | |
642 | ||
643 | static Lisp_Object property_change_reply; | |
644 | ||
645 | static struct prop_location *property_change_reply_object; | |
646 | ||
647 | static struct prop_location *property_change_wait_list; | |
55b2d45d RS |
648 | |
649 | static Lisp_Object | |
dd0fe424 KS |
650 | queue_selection_requests_unwind (tem) |
651 | Lisp_Object tem; | |
55b2d45d | 652 | { |
dd0fe424 | 653 | x_stop_queuing_selection_requests (); |
ab552306 | 654 | return Qnil; |
55b2d45d RS |
655 | } |
656 | ||
657 | /* Return some frame whose display info is DPYINFO. | |
658 | Return nil if there is none. */ | |
659 | ||
660 | static Lisp_Object | |
661 | some_frame_on_display (dpyinfo) | |
662 | struct x_display_info *dpyinfo; | |
663 | { | |
664 | Lisp_Object list, frame; | |
665 | ||
666 | FOR_EACH_FRAME (list, frame) | |
667 | { | |
428a555e KL |
668 | if (FRAME_X_P (XFRAME (frame)) |
669 | && FRAME_X_DISPLAY_INFO (XFRAME (frame)) == dpyinfo) | |
55b2d45d RS |
670 | return frame; |
671 | } | |
672 | ||
673 | return Qnil; | |
674 | } | |
d1f21a66 | 675 | \f |
ede4db72 RS |
676 | /* Send the reply to a selection request event EVENT. |
677 | TYPE is the type of selection data requested. | |
678 | DATA and SIZE describe the data to send, already converted. | |
679 | FORMAT is the unit-size (in bits) of the data to be transmitted. */ | |
680 | ||
46d47e41 | 681 | #ifdef TRACE_SELECTION |
ca7af97a | 682 | static int x_reply_selection_request_cnt; |
46d47e41 GM |
683 | #endif /* TRACE_SELECTION */ |
684 | ||
ede4db72 RS |
685 | static void |
686 | x_reply_selection_request (event, format, data, size, type) | |
687 | struct input_event *event; | |
688 | int format, size; | |
689 | unsigned char *data; | |
690 | Atom type; | |
691 | { | |
692 | XSelectionEvent reply; | |
693 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
5d0ba25b | 694 | Window window = SELECTION_EVENT_REQUESTOR (event); |
ede4db72 RS |
695 | int bytes_remaining; |
696 | int format_bytes = format/8; | |
697 | int max_bytes = SELECTION_QUANTUM (display); | |
5c3a351a | 698 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
9ba8e10d | 699 | int count = SPECPDL_INDEX (); |
ede4db72 RS |
700 | |
701 | if (max_bytes > MAX_SELECTION_QUANTUM) | |
702 | max_bytes = MAX_SELECTION_QUANTUM; | |
703 | ||
704 | reply.type = SelectionNotify; | |
705 | reply.display = display; | |
5d0ba25b | 706 | reply.requestor = window; |
ede4db72 RS |
707 | reply.selection = SELECTION_EVENT_SELECTION (event); |
708 | reply.time = SELECTION_EVENT_TIME (event); | |
709 | reply.target = SELECTION_EVENT_TARGET (event); | |
710 | reply.property = SELECTION_EVENT_PROPERTY (event); | |
711 | if (reply.property == None) | |
712 | reply.property = reply.target; | |
713 | ||
afe1529d | 714 | BLOCK_INPUT; |
c525d842 CY |
715 | /* The protected block contains wait_for_property_change, which can |
716 | run random lisp code (process handlers) or signal. Therefore, we | |
717 | put the x_uncatch_errors call in an unwind. */ | |
718 | record_unwind_protect (x_catch_errors_unwind, Qnil); | |
9ba8e10d | 719 | x_catch_errors (display); |
ede4db72 | 720 | |
9c3ad9e1 JD |
721 | #ifdef TRACE_SELECTION |
722 | { | |
9c3ad9e1 JD |
723 | char *sel = XGetAtomName (display, reply.selection); |
724 | char *tgt = XGetAtomName (display, reply.target); | |
ca7af97a | 725 | TRACE3 ("%s, target %s (%d)", sel, tgt, ++x_reply_selection_request_cnt); |
9c3ad9e1 JD |
726 | if (sel) XFree (sel); |
727 | if (tgt) XFree (tgt); | |
728 | } | |
729 | #endif /* TRACE_SELECTION */ | |
730 | ||
ede4db72 RS |
731 | /* Store the data on the requested property. |
732 | If the selection is large, only store the first N bytes of it. | |
733 | */ | |
734 | bytes_remaining = size * format_bytes; | |
735 | if (bytes_remaining <= max_bytes) | |
736 | { | |
737 | /* Send all the data at once, with minimal handshaking. */ | |
d9c0d4a3 | 738 | TRACE1 ("Sending all %d bytes", bytes_remaining); |
ede4db72 RS |
739 | XChangeProperty (display, window, reply.property, type, format, |
740 | PropModeReplace, data, size); | |
741 | /* At this point, the selection was successfully stored; ack it. */ | |
2f65feb6 | 742 | XSendEvent (display, window, False, 0L, (XEvent *) &reply); |
ede4db72 RS |
743 | } |
744 | else | |
745 | { | |
746 | /* Send an INCR selection. */ | |
d1f21a66 | 747 | struct prop_location *wait_object; |
afe1529d | 748 | int had_errors; |
55b2d45d | 749 | Lisp_Object frame; |
ede4db72 | 750 | |
55b2d45d RS |
751 | frame = some_frame_on_display (dpyinfo); |
752 | ||
753 | /* If the display no longer has frames, we can't expect | |
754 | to get many more selection requests from it, so don't | |
755 | bother trying to queue them. */ | |
756 | if (!NILP (frame)) | |
757 | { | |
dd0fe424 | 758 | x_start_queuing_selection_requests (); |
55b2d45d RS |
759 | |
760 | record_unwind_protect (queue_selection_requests_unwind, | |
dd0fe424 | 761 | Qnil); |
55b2d45d | 762 | } |
2f65feb6 | 763 | |
19126e11 | 764 | if (x_window_to_frame (dpyinfo, window)) /* #### debug */ |
606140dd | 765 | error ("Attempt to transfer an INCR to ourself!"); |
1b65481e | 766 | |
d9c0d4a3 GM |
767 | TRACE2 ("Start sending %d bytes incrementally (%s)", |
768 | bytes_remaining, XGetAtomName (display, reply.property)); | |
d1f21a66 RS |
769 | wait_object = expect_property_change (display, window, reply.property, |
770 | PropertyDelete); | |
ede4db72 | 771 | |
d9c0d4a3 GM |
772 | TRACE1 ("Set %s to number of bytes to send", |
773 | XGetAtomName (display, reply.property)); | |
e22cf39c JD |
774 | { |
775 | /* XChangeProperty expects an array of long even if long is more than | |
776 | 32 bits. */ | |
777 | long value[1]; | |
778 | ||
779 | value[0] = bytes_remaining; | |
780 | XChangeProperty (display, window, reply.property, dpyinfo->Xatom_INCR, | |
781 | 32, PropModeReplace, | |
782 | (unsigned char *) value, 1); | |
783 | } | |
784 | ||
ede4db72 | 785 | XSelectInput (display, window, PropertyChangeMask); |
1b65481e | 786 | |
ede4db72 | 787 | /* Tell 'em the INCR data is there... */ |
d9c0d4a3 | 788 | TRACE0 ("Send SelectionNotify event"); |
55b2d45d | 789 | XSendEvent (display, window, False, 0L, (XEvent *) &reply); |
5c3a351a | 790 | XFlush (display); |
afe1529d RS |
791 | |
792 | had_errors = x_had_errors_p (display); | |
2f65feb6 | 793 | UNBLOCK_INPUT; |
ede4db72 | 794 | |
2a1a4c9d | 795 | /* First, wait for the requester to ack by deleting the property. |
ede4db72 | 796 | This can run random lisp code (process handlers) or signal. */ |
afe1529d | 797 | if (! had_errors) |
d9c0d4a3 GM |
798 | { |
799 | TRACE1 ("Waiting for ACK (deletion of %s)", | |
800 | XGetAtomName (display, reply.property)); | |
801 | wait_for_property_change (wait_object); | |
802 | } | |
dd0fe424 KS |
803 | else |
804 | unexpect_property_change (wait_object); | |
ede4db72 | 805 | |
d9c0d4a3 | 806 | TRACE0 ("Got ACK"); |
ede4db72 RS |
807 | while (bytes_remaining) |
808 | { | |
e22cf39c JD |
809 | int i = ((bytes_remaining < max_bytes) |
810 | ? bytes_remaining | |
5a9c35e5 | 811 | : max_bytes) / format_bytes; |
2f65feb6 RS |
812 | |
813 | BLOCK_INPUT; | |
814 | ||
d1f21a66 RS |
815 | wait_object |
816 | = expect_property_change (display, window, reply.property, | |
817 | PropertyDelete); | |
d9c0d4a3 | 818 | |
5a9c35e5 | 819 | TRACE1 ("Sending increment of %d elements", i); |
d9c0d4a3 GM |
820 | TRACE1 ("Set %s to increment data", |
821 | XGetAtomName (display, reply.property)); | |
1b65481e | 822 | |
ede4db72 RS |
823 | /* Append the next chunk of data to the property. */ |
824 | XChangeProperty (display, window, reply.property, type, format, | |
5a9c35e5 AS |
825 | PropModeAppend, data, i); |
826 | bytes_remaining -= i * format_bytes; | |
827 | if (format == 32) | |
828 | data += i * sizeof (long); | |
829 | else | |
830 | data += i * format_bytes; | |
5c3a351a | 831 | XFlush (display); |
afe1529d | 832 | had_errors = x_had_errors_p (display); |
2f65feb6 | 833 | UNBLOCK_INPUT; |
ede4db72 | 834 | |
afe1529d RS |
835 | if (had_errors) |
836 | break; | |
837 | ||
2a1a4c9d | 838 | /* Now wait for the requester to ack this chunk by deleting the |
db9cd97a | 839 | property. This can run random lisp code or signal. */ |
d9c0d4a3 GM |
840 | TRACE1 ("Waiting for increment ACK (deletion of %s)", |
841 | XGetAtomName (display, reply.property)); | |
d1f21a66 | 842 | wait_for_property_change (wait_object); |
ede4db72 | 843 | } |
1b65481e | 844 | |
d9c0d4a3 GM |
845 | /* Now write a zero-length chunk to the property to tell the |
846 | requester that we're done. */ | |
2f65feb6 | 847 | BLOCK_INPUT; |
ede4db72 RS |
848 | if (! waiting_for_other_props_on_window (display, window)) |
849 | XSelectInput (display, window, 0L); | |
850 | ||
d9c0d4a3 GM |
851 | TRACE1 ("Set %s to a 0-length chunk to indicate EOF", |
852 | XGetAtomName (display, reply.property)); | |
ede4db72 RS |
853 | XChangeProperty (display, window, reply.property, type, format, |
854 | PropModeReplace, data, 0); | |
d9c0d4a3 | 855 | TRACE0 ("Done sending incrementally"); |
ede4db72 | 856 | } |
afe1529d | 857 | |
ceabd272 | 858 | /* rms, 2003-01-03: I think I have fixed this bug. */ |
47a6ac17 GM |
859 | /* The window we're communicating with may have been deleted |
860 | in the meantime (that's a real situation from a bug report). | |
861 | In this case, there may be events in the event queue still | |
862 | refering to the deleted window, and we'll get a BadWindow error | |
863 | in XTread_socket when processing the events. I don't have | |
864 | an idea how to fix that. gerd, 2001-01-98. */ | |
844fc085 JD |
865 | /* 2004-09-10: XSync and UNBLOCK so that possible protocol errors are |
866 | delivered before uncatch errors. */ | |
867 | XSync (display, False); | |
afe1529d | 868 | UNBLOCK_INPUT; |
0608b1a0 JD |
869 | |
870 | /* GTK queues events in addition to the queue in Xlib. So we | |
871 | UNBLOCK to enter the event loop and get possible errors delivered, | |
872 | and then BLOCK again because x_uncatch_errors requires it. */ | |
873 | BLOCK_INPUT; | |
c525d842 | 874 | /* This calls x_uncatch_errors. */ |
9ba8e10d | 875 | unbind_to (count, Qnil); |
afe1529d | 876 | UNBLOCK_INPUT; |
ede4db72 RS |
877 | } |
878 | \f | |
879 | /* Handle a SelectionRequest event EVENT. | |
880 | This is called from keyboard.c when such an event is found in the queue. */ | |
881 | ||
dd0fe424 | 882 | static void |
ede4db72 RS |
883 | x_handle_selection_request (event) |
884 | struct input_event *event; | |
885 | { | |
886 | struct gcpro gcpro1, gcpro2, gcpro3; | |
9d2d1dd8 | 887 | Lisp_Object local_selection_data; |
ede4db72 | 888 | Lisp_Object selection_symbol; |
9d2d1dd8 KH |
889 | Lisp_Object target_symbol; |
890 | Lisp_Object converted_selection; | |
ede4db72 | 891 | Time local_selection_time; |
9d2d1dd8 | 892 | Lisp_Object successful_p; |
ede4db72 | 893 | int count; |
5c3a351a RS |
894 | struct x_display_info *dpyinfo |
895 | = x_display_info_for_display (SELECTION_EVENT_DISPLAY (event)); | |
ede4db72 | 896 | |
678b3958 KS |
897 | TRACE2 ("x_handle_selection_request, from=0x%08lx time=%lu", |
898 | (unsigned long) SELECTION_EVENT_REQUESTOR (event), | |
899 | (unsigned long) SELECTION_EVENT_TIME (event)); | |
dd0fe424 | 900 | |
9d2d1dd8 KH |
901 | local_selection_data = Qnil; |
902 | target_symbol = Qnil; | |
903 | converted_selection = Qnil; | |
904 | successful_p = Qnil; | |
905 | ||
ede4db72 RS |
906 | GCPRO3 (local_selection_data, converted_selection, target_symbol); |
907 | ||
d9c0d4a3 | 908 | selection_symbol = x_atom_to_symbol (SELECTION_EVENT_DISPLAY (event), |
ede4db72 RS |
909 | SELECTION_EVENT_SELECTION (event)); |
910 | ||
911 | local_selection_data = assq_no_quit (selection_symbol, Vselection_alist); | |
ede4db72 RS |
912 | |
913 | if (NILP (local_selection_data)) | |
914 | { | |
915 | /* Someone asked for the selection, but we don't have it any more. | |
916 | */ | |
917 | x_decline_selection_request (event); | |
918 | goto DONE; | |
919 | } | |
920 | ||
921 | local_selection_time = (Time) | |
8e713be6 | 922 | cons_to_long (XCAR (XCDR (XCDR (local_selection_data)))); |
ede4db72 RS |
923 | |
924 | if (SELECTION_EVENT_TIME (event) != CurrentTime | |
7da64e5c | 925 | && local_selection_time > SELECTION_EVENT_TIME (event)) |
ede4db72 RS |
926 | { |
927 | /* Someone asked for the selection, and we have one, but not the one | |
928 | they're looking for. | |
929 | */ | |
930 | x_decline_selection_request (event); | |
931 | goto DONE; | |
932 | } | |
933 | ||
ede4db72 | 934 | x_selection_current_request = event; |
331379bf | 935 | count = SPECPDL_INDEX (); |
ca29f2b8 | 936 | selection_request_dpyinfo = dpyinfo; |
ede4db72 RS |
937 | record_unwind_protect (x_selection_request_lisp_error, Qnil); |
938 | ||
d9c0d4a3 | 939 | target_symbol = x_atom_to_symbol (SELECTION_EVENT_DISPLAY (event), |
ede4db72 RS |
940 | SELECTION_EVENT_TARGET (event)); |
941 | ||
942 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
943 | if (EQ (target_symbol, QMULTIPLE)) | |
944 | target_symbol = fetch_multiple_target (event); | |
945 | #endif | |
1b65481e | 946 | |
ede4db72 | 947 | /* Convert lisp objects back into binary data */ |
1b65481e | 948 | |
ede4db72 | 949 | converted_selection |
5109c8dd | 950 | = x_get_local_selection (selection_symbol, target_symbol, 0); |
1b65481e | 951 | |
ede4db72 RS |
952 | if (! NILP (converted_selection)) |
953 | { | |
954 | unsigned char *data; | |
955 | unsigned int size; | |
956 | int format; | |
957 | Atom type; | |
aca39f42 RS |
958 | int nofree; |
959 | ||
866f8518 JD |
960 | if (CONSP (converted_selection) && NILP (XCDR (converted_selection))) |
961 | { | |
962 | x_decline_selection_request (event); | |
963 | goto DONE2; | |
964 | } | |
965 | ||
2f65feb6 RS |
966 | lisp_data_to_selection_data (SELECTION_EVENT_DISPLAY (event), |
967 | converted_selection, | |
aca39f42 | 968 | &data, &type, &size, &format, &nofree); |
1b65481e | 969 | |
ede4db72 RS |
970 | x_reply_selection_request (event, format, data, size, type); |
971 | successful_p = Qt; | |
972 | ||
973 | /* Indicate we have successfully processed this event. */ | |
7da64e5c | 974 | x_selection_current_request = 0; |
ede4db72 | 975 | |
4feb31b2 | 976 | /* Use xfree, not XFree, because lisp_data_to_selection_data |
0158abbc | 977 | calls xmalloc itself. */ |
aca39f42 | 978 | if (!nofree) |
4feb31b2 | 979 | xfree (data); |
ede4db72 | 980 | } |
866f8518 JD |
981 | |
982 | DONE2: | |
ede4db72 RS |
983 | unbind_to (count, Qnil); |
984 | ||
985 | DONE: | |
986 | ||
ede4db72 RS |
987 | /* Let random lisp code notice that the selection has been asked for. */ |
988 | { | |
9d2d1dd8 | 989 | Lisp_Object rest; |
c917a8de | 990 | rest = Vx_sent_selection_functions; |
ede4db72 RS |
991 | if (!EQ (rest, Qunbound)) |
992 | for (; CONSP (rest); rest = Fcdr (rest)) | |
993 | call3 (Fcar (rest), selection_symbol, target_symbol, successful_p); | |
994 | } | |
4f06187f RS |
995 | |
996 | UNGCPRO; | |
ede4db72 RS |
997 | } |
998 | \f | |
e18e6130 | 999 | /* Handle a SelectionClear event EVENT, which indicates that some |
ede4db72 RS |
1000 | client cleared out our previously asserted selection. |
1001 | This is called from keyboard.c when such an event is found in the queue. */ | |
1002 | ||
dd0fe424 | 1003 | static void |
ede4db72 RS |
1004 | x_handle_selection_clear (event) |
1005 | struct input_event *event; | |
1006 | { | |
1007 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
1008 | Atom selection = SELECTION_EVENT_SELECTION (event); | |
1009 | Time changed_owner_time = SELECTION_EVENT_TIME (event); | |
1b65481e | 1010 | |
ede4db72 RS |
1011 | Lisp_Object selection_symbol, local_selection_data; |
1012 | Time local_selection_time; | |
5c3a351a | 1013 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
e18e6130 RS |
1014 | struct x_display_info *t_dpyinfo; |
1015 | ||
dd0fe424 KS |
1016 | TRACE0 ("x_handle_selection_clear"); |
1017 | ||
e18e6130 RS |
1018 | /* If the new selection owner is also Emacs, |
1019 | don't clear the new selection. */ | |
1020 | BLOCK_INPUT; | |
1021 | /* Check each display on the same terminal, | |
1022 | to see if this Emacs job now owns the selection | |
1023 | through that display. */ | |
1024 | for (t_dpyinfo = x_display_list; t_dpyinfo; t_dpyinfo = t_dpyinfo->next) | |
6ed8eeff | 1025 | if (t_dpyinfo->terminal->kboard == dpyinfo->terminal->kboard) |
e18e6130 RS |
1026 | { |
1027 | Window owner_window | |
1028 | = XGetSelectionOwner (t_dpyinfo->display, selection); | |
1029 | if (x_window_to_frame (t_dpyinfo, owner_window) != 0) | |
1030 | { | |
1031 | UNBLOCK_INPUT; | |
1032 | return; | |
1033 | } | |
1034 | } | |
1035 | UNBLOCK_INPUT; | |
d17cf4eb | 1036 | |
d9c0d4a3 | 1037 | selection_symbol = x_atom_to_symbol (display, selection); |
ede4db72 RS |
1038 | |
1039 | local_selection_data = assq_no_quit (selection_symbol, Vselection_alist); | |
1040 | ||
1041 | /* Well, we already believe that we don't own it, so that's just fine. */ | |
1042 | if (NILP (local_selection_data)) return; | |
1043 | ||
1044 | local_selection_time = (Time) | |
8e713be6 | 1045 | cons_to_long (XCAR (XCDR (XCDR (local_selection_data)))); |
ede4db72 RS |
1046 | |
1047 | /* This SelectionClear is for a selection that we no longer own, so we can | |
1048 | disregard it. (That is, we have reasserted the selection since this | |
1049 | request was generated.) */ | |
1050 | ||
1051 | if (changed_owner_time != CurrentTime | |
1052 | && local_selection_time > changed_owner_time) | |
1053 | return; | |
1054 | ||
1055 | /* Otherwise, we're really honest and truly being told to drop it. | |
1056 | Don't use Fdelq as that may QUIT;. */ | |
1057 | ||
1058 | if (EQ (local_selection_data, Fcar (Vselection_alist))) | |
1059 | Vselection_alist = Fcdr (Vselection_alist); | |
1060 | else | |
1061 | { | |
1062 | Lisp_Object rest; | |
99784d63 | 1063 | for (rest = Vselection_alist; CONSP (rest); rest = XCDR (rest)) |
8e713be6 | 1064 | if (EQ (local_selection_data, Fcar (XCDR (rest)))) |
ede4db72 | 1065 | { |
f3fbd155 | 1066 | XSETCDR (rest, Fcdr (XCDR (rest))); |
ede4db72 RS |
1067 | break; |
1068 | } | |
1069 | } | |
1070 | ||
1071 | /* Let random lisp code notice that the selection has been stolen. */ | |
1072 | ||
1073 | { | |
d1f21a66 | 1074 | Lisp_Object rest; |
c917a8de | 1075 | rest = Vx_lost_selection_functions; |
ede4db72 | 1076 | if (!EQ (rest, Qunbound)) |
d1f21a66 RS |
1077 | { |
1078 | for (; CONSP (rest); rest = Fcdr (rest)) | |
1079 | call1 (Fcar (rest), selection_symbol); | |
7c6b2ea4 | 1080 | prepare_menu_bars (); |
3007ebfb | 1081 | redisplay_preserve_echo_area (20); |
d1f21a66 | 1082 | } |
ede4db72 RS |
1083 | } |
1084 | } | |
1085 | ||
dd0fe424 KS |
1086 | void |
1087 | x_handle_selection_event (event) | |
1088 | struct input_event *event; | |
1089 | { | |
1090 | TRACE0 ("x_handle_selection_event"); | |
1091 | ||
1092 | if (event->kind == SELECTION_REQUEST_EVENT) | |
1093 | { | |
1094 | if (x_queue_selection_requests) | |
1095 | x_queue_event (event); | |
1096 | else | |
1097 | x_handle_selection_request (event); | |
1098 | } | |
1099 | else | |
1100 | x_handle_selection_clear (event); | |
1101 | } | |
1102 | ||
1103 | ||
118bd841 RS |
1104 | /* Clear all selections that were made from frame F. |
1105 | We do this when about to delete a frame. */ | |
1106 | ||
1107 | void | |
1108 | x_clear_frame_selections (f) | |
1109 | FRAME_PTR f; | |
1110 | { | |
1111 | Lisp_Object frame; | |
1112 | Lisp_Object rest; | |
1113 | ||
90851bbe | 1114 | XSETFRAME (frame, f); |
118bd841 RS |
1115 | |
1116 | /* Otherwise, we're really honest and truly being told to drop it. | |
1117 | Don't use Fdelq as that may QUIT;. */ | |
1118 | ||
0d199f9c RS |
1119 | /* Delete elements from the beginning of Vselection_alist. */ |
1120 | while (!NILP (Vselection_alist) | |
1121 | && EQ (frame, Fcar (Fcdr (Fcdr (Fcdr (Fcar (Vselection_alist))))))) | |
1122 | { | |
1123 | /* Let random Lisp code notice that the selection has been stolen. */ | |
1124 | Lisp_Object hooks, selection_symbol; | |
1125 | ||
c917a8de | 1126 | hooks = Vx_lost_selection_functions; |
0d199f9c RS |
1127 | selection_symbol = Fcar (Fcar (Vselection_alist)); |
1128 | ||
1129 | if (!EQ (hooks, Qunbound)) | |
1130 | { | |
1131 | for (; CONSP (hooks); hooks = Fcdr (hooks)) | |
1132 | call1 (Fcar (hooks), selection_symbol); | |
996b804d MB |
1133 | #if 0 /* This can crash when deleting a frame |
1134 | from x_connection_closed. Anyway, it seems unnecessary; | |
1135 | something else should cause a redisplay. */ | |
3007ebfb | 1136 | redisplay_preserve_echo_area (21); |
996b804d | 1137 | #endif |
0d199f9c RS |
1138 | } |
1139 | ||
1140 | Vselection_alist = Fcdr (Vselection_alist); | |
1141 | } | |
1142 | ||
1143 | /* Delete elements after the beginning of Vselection_alist. */ | |
99784d63 | 1144 | for (rest = Vselection_alist; CONSP (rest); rest = XCDR (rest)) |
8e713be6 | 1145 | if (EQ (frame, Fcar (Fcdr (Fcdr (Fcdr (Fcar (XCDR (rest)))))))) |
118bd841 RS |
1146 | { |
1147 | /* Let random Lisp code notice that the selection has been stolen. */ | |
1148 | Lisp_Object hooks, selection_symbol; | |
1149 | ||
c917a8de | 1150 | hooks = Vx_lost_selection_functions; |
8e713be6 | 1151 | selection_symbol = Fcar (Fcar (XCDR (rest))); |
118bd841 RS |
1152 | |
1153 | if (!EQ (hooks, Qunbound)) | |
1154 | { | |
1155 | for (; CONSP (hooks); hooks = Fcdr (hooks)) | |
1156 | call1 (Fcar (hooks), selection_symbol); | |
996b804d | 1157 | #if 0 /* See above */ |
3007ebfb | 1158 | redisplay_preserve_echo_area (22); |
996b804d | 1159 | #endif |
118bd841 | 1160 | } |
f3fbd155 | 1161 | XSETCDR (rest, Fcdr (XCDR (rest))); |
118bd841 RS |
1162 | break; |
1163 | } | |
1164 | } | |
ede4db72 | 1165 | \f |
ede4db72 RS |
1166 | /* Nonzero if any properties for DISPLAY and WINDOW |
1167 | are on the list of what we are waiting for. */ | |
1168 | ||
1169 | static int | |
1170 | waiting_for_other_props_on_window (display, window) | |
1171 | Display *display; | |
1172 | Window window; | |
1173 | { | |
1174 | struct prop_location *rest = property_change_wait_list; | |
1175 | while (rest) | |
1176 | if (rest->display == display && rest->window == window) | |
1177 | return 1; | |
1178 | else | |
1179 | rest = rest->next; | |
1180 | return 0; | |
1181 | } | |
1182 | ||
1183 | /* Add an entry to the list of property changes we are waiting for. | |
1184 | DISPLAY, WINDOW, PROPERTY, STATE describe what we will wait for. | |
1185 | The return value is a number that uniquely identifies | |
1186 | this awaited property change. */ | |
1187 | ||
d1f21a66 | 1188 | static struct prop_location * |
ede4db72 RS |
1189 | expect_property_change (display, window, property, state) |
1190 | Display *display; | |
1191 | Window window; | |
6c070502 | 1192 | Atom property; |
ede4db72 RS |
1193 | int state; |
1194 | { | |
d9c0d4a3 | 1195 | struct prop_location *pl = (struct prop_location *) xmalloc (sizeof *pl); |
2f65feb6 | 1196 | pl->identifier = ++prop_location_identifier; |
ede4db72 RS |
1197 | pl->display = display; |
1198 | pl->window = window; | |
1199 | pl->property = property; | |
1200 | pl->desired_state = state; | |
1201 | pl->next = property_change_wait_list; | |
d1f21a66 | 1202 | pl->arrived = 0; |
ede4db72 | 1203 | property_change_wait_list = pl; |
d1f21a66 | 1204 | return pl; |
ede4db72 RS |
1205 | } |
1206 | ||
1207 | /* Delete an entry from the list of property changes we are waiting for. | |
2f65feb6 | 1208 | IDENTIFIER is the number that uniquely identifies the entry. */ |
ede4db72 RS |
1209 | |
1210 | static void | |
d1f21a66 RS |
1211 | unexpect_property_change (location) |
1212 | struct prop_location *location; | |
ede4db72 RS |
1213 | { |
1214 | struct prop_location *prev = 0, *rest = property_change_wait_list; | |
1215 | while (rest) | |
1216 | { | |
d1f21a66 | 1217 | if (rest == location) |
ede4db72 RS |
1218 | { |
1219 | if (prev) | |
1220 | prev->next = rest->next; | |
1221 | else | |
1222 | property_change_wait_list = rest->next; | |
4feb31b2 | 1223 | xfree (rest); |
ede4db72 RS |
1224 | return; |
1225 | } | |
1226 | prev = rest; | |
1227 | rest = rest->next; | |
1228 | } | |
1229 | } | |
1230 | ||
2f65feb6 RS |
1231 | /* Remove the property change expectation element for IDENTIFIER. */ |
1232 | ||
1233 | static Lisp_Object | |
dd0fe424 KS |
1234 | wait_for_property_change_unwind (loc) |
1235 | Lisp_Object loc; | |
2f65feb6 | 1236 | { |
dd0fe424 KS |
1237 | struct prop_location *location = XSAVE_VALUE (loc)->pointer; |
1238 | ||
1239 | unexpect_property_change (location); | |
1240 | if (location == property_change_reply_object) | |
1241 | property_change_reply_object = 0; | |
ab552306 | 1242 | return Qnil; |
2f65feb6 RS |
1243 | } |
1244 | ||
ede4db72 | 1245 | /* Actually wait for a property change. |
2f65feb6 | 1246 | IDENTIFIER should be the value that expect_property_change returned. */ |
ede4db72 RS |
1247 | |
1248 | static void | |
d1f21a66 RS |
1249 | wait_for_property_change (location) |
1250 | struct prop_location *location; | |
ede4db72 | 1251 | { |
2f65feb6 | 1252 | int secs, usecs; |
aed13378 | 1253 | int count = SPECPDL_INDEX (); |
d1f21a66 | 1254 | |
dd0fe424 KS |
1255 | if (property_change_reply_object) |
1256 | abort (); | |
2f65feb6 RS |
1257 | |
1258 | /* Make sure to do unexpect_property_change if we quit or err. */ | |
dd0fe424 KS |
1259 | record_unwind_protect (wait_for_property_change_unwind, |
1260 | make_save_value (location, 0)); | |
2f65feb6 | 1261 | |
f3fbd155 | 1262 | XSETCAR (property_change_reply, Qnil); |
afe1529d | 1263 | property_change_reply_object = location; |
dd0fe424 | 1264 | |
afe1529d RS |
1265 | /* If the event we are waiting for arrives beyond here, it will set |
1266 | property_change_reply, because property_change_reply_object says so. */ | |
d1f21a66 RS |
1267 | if (! location->arrived) |
1268 | { | |
d1f21a66 RS |
1269 | secs = x_selection_timeout / 1000; |
1270 | usecs = (x_selection_timeout % 1000) * 1000; | |
d9c0d4a3 | 1271 | TRACE2 (" Waiting %d secs, %d usecs", secs, usecs); |
d64b707c KS |
1272 | wait_reading_process_output (secs, usecs, 0, 0, |
1273 | property_change_reply, NULL, 0); | |
d1f21a66 | 1274 | |
8e713be6 | 1275 | if (NILP (XCAR (property_change_reply))) |
d9c0d4a3 GM |
1276 | { |
1277 | TRACE0 (" Timed out"); | |
1278 | error ("Timed out waiting for property-notify event"); | |
1279 | } | |
d1f21a66 | 1280 | } |
2f65feb6 RS |
1281 | |
1282 | unbind_to (count, Qnil); | |
ede4db72 RS |
1283 | } |
1284 | ||
1285 | /* Called from XTread_socket in response to a PropertyNotify event. */ | |
1286 | ||
1287 | void | |
1288 | x_handle_property_notify (event) | |
1289 | XPropertyEvent *event; | |
1290 | { | |
1291 | struct prop_location *prev = 0, *rest = property_change_wait_list; | |
d9c0d4a3 | 1292 | |
ede4db72 RS |
1293 | while (rest) |
1294 | { | |
dd0fe424 KS |
1295 | if (!rest->arrived |
1296 | && rest->property == event->atom | |
ede4db72 RS |
1297 | && rest->window == event->window |
1298 | && rest->display == event->display | |
1299 | && rest->desired_state == event->state) | |
1300 | { | |
d9c0d4a3 GM |
1301 | TRACE2 ("Expected %s of property %s", |
1302 | (event->state == PropertyDelete ? "deletion" : "change"), | |
1303 | XGetAtomName (event->display, event->atom)); | |
ede4db72 | 1304 | |
d1f21a66 RS |
1305 | rest->arrived = 1; |
1306 | ||
ede4db72 RS |
1307 | /* If this is the one wait_for_property_change is waiting for, |
1308 | tell it to wake up. */ | |
d1f21a66 | 1309 | if (rest == property_change_reply_object) |
f3fbd155 | 1310 | XSETCAR (property_change_reply, Qt); |
ede4db72 | 1311 | |
ede4db72 RS |
1312 | return; |
1313 | } | |
1b65481e | 1314 | |
ede4db72 RS |
1315 | prev = rest; |
1316 | rest = rest->next; | |
1317 | } | |
ede4db72 RS |
1318 | } |
1319 | ||
1320 | ||
1321 | \f | |
1322 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1323 | ||
1324 | static Lisp_Object | |
1325 | fetch_multiple_target (event) | |
1326 | XSelectionRequestEvent *event; | |
1327 | { | |
1328 | Display *display = event->display; | |
5d0ba25b | 1329 | Window window = event->requestor; |
ede4db72 RS |
1330 | Atom target = event->target; |
1331 | Atom selection_atom = event->selection; | |
1332 | int result; | |
1333 | ||
1334 | return | |
1335 | Fcons (QMULTIPLE, | |
1336 | x_get_window_property_as_lisp_data (display, window, target, | |
1337 | QMULTIPLE, selection_atom)); | |
1338 | } | |
1339 | ||
1340 | static Lisp_Object | |
1341 | copy_multiple_data (obj) | |
1342 | Lisp_Object obj; | |
1343 | { | |
1344 | Lisp_Object vec; | |
1345 | int i; | |
1346 | int size; | |
1347 | if (CONSP (obj)) | |
8e713be6 | 1348 | return Fcons (XCAR (obj), copy_multiple_data (XCDR (obj))); |
1b65481e | 1349 | |
b7826503 | 1350 | CHECK_VECTOR (obj); |
ede4db72 RS |
1351 | vec = Fmake_vector (size = XVECTOR (obj)->size, Qnil); |
1352 | for (i = 0; i < size; i++) | |
1353 | { | |
1354 | Lisp_Object vec2 = XVECTOR (obj)->contents [i]; | |
b7826503 | 1355 | CHECK_VECTOR (vec2); |
ede4db72 RS |
1356 | if (XVECTOR (vec2)->size != 2) |
1357 | /* ??? Confusing error message */ | |
4d30ce50 | 1358 | signal_error ("Vectors must be of length 2", vec2); |
ede4db72 RS |
1359 | XVECTOR (vec)->contents [i] = Fmake_vector (2, Qnil); |
1360 | XVECTOR (XVECTOR (vec)->contents [i])->contents [0] | |
1361 | = XVECTOR (vec2)->contents [0]; | |
1362 | XVECTOR (XVECTOR (vec)->contents [i])->contents [1] | |
1363 | = XVECTOR (vec2)->contents [1]; | |
1364 | } | |
1365 | return vec; | |
1366 | } | |
1367 | ||
1368 | #endif | |
1369 | ||
1370 | \f | |
1371 | /* Variables for communication with x_handle_selection_notify. */ | |
1372 | static Atom reading_which_selection; | |
1373 | static Lisp_Object reading_selection_reply; | |
1374 | static Window reading_selection_window; | |
1375 | ||
1376 | /* Do protocol to read selection-data from the server. | |
1377 | Converts this to Lisp data and returns it. */ | |
1378 | ||
1379 | static Lisp_Object | |
3a42401d JD |
1380 | x_get_foreign_selection (selection_symbol, target_type, time_stamp) |
1381 | Lisp_Object selection_symbol, target_type, time_stamp; | |
ede4db72 | 1382 | { |
378c33ca | 1383 | struct frame *sf = SELECTED_FRAME (); |
428a555e KL |
1384 | Window requestor_window; |
1385 | Display *display; | |
1386 | struct x_display_info *dpyinfo; | |
5d0ba25b | 1387 | Time requestor_time = last_event_timestamp; |
428a555e KL |
1388 | Atom target_property; |
1389 | Atom selection_atom; | |
ede4db72 | 1390 | Atom type_atom; |
80da0190 | 1391 | int secs, usecs; |
c525d842 | 1392 | int count = SPECPDL_INDEX (); |
55b2d45d | 1393 | Lisp_Object frame; |
ede4db72 | 1394 | |
428a555e KL |
1395 | if (! FRAME_X_P (sf)) |
1396 | return Qnil; | |
1397 | ||
1398 | requestor_window = FRAME_X_WINDOW (sf); | |
1399 | display = FRAME_X_DISPLAY (sf); | |
1400 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
1401 | target_property = dpyinfo->Xatom_EMACS_TMP; | |
1402 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection_symbol); | |
1403 | ||
ede4db72 | 1404 | if (CONSP (target_type)) |
8e713be6 | 1405 | type_atom = symbol_to_x_atom (dpyinfo, display, XCAR (target_type)); |
ede4db72 | 1406 | else |
5c3a351a | 1407 | type_atom = symbol_to_x_atom (dpyinfo, display, target_type); |
ede4db72 | 1408 | |
3a42401d JD |
1409 | if (! NILP (time_stamp)) |
1410 | { | |
1411 | if (CONSP (time_stamp)) | |
1412 | requestor_time = (Time) cons_to_long (time_stamp); | |
1413 | else if (INTEGERP (time_stamp)) | |
1414 | requestor_time = (Time) XUINT (time_stamp); | |
1415 | else if (FLOATP (time_stamp)) | |
ff59904a | 1416 | requestor_time = (Time) XFLOAT_DATA (time_stamp); |
3a42401d JD |
1417 | else |
1418 | error ("TIME_STAMP must be cons or number"); | |
1419 | } | |
1420 | ||
ede4db72 | 1421 | BLOCK_INPUT; |
1b65481e | 1422 | |
c525d842 CY |
1423 | /* The protected block contains wait_reading_process_output, which |
1424 | can run random lisp code (process handlers) or signal. | |
1425 | Therefore, we put the x_uncatch_errors call in an unwind. */ | |
1426 | record_unwind_protect (x_catch_errors_unwind, Qnil); | |
9ba8e10d | 1427 | x_catch_errors (display); |
1b65481e | 1428 | |
d9c0d4a3 GM |
1429 | TRACE2 ("Get selection %s, type %s", |
1430 | XGetAtomName (display, type_atom), | |
1431 | XGetAtomName (display, target_property)); | |
1432 | ||
ede4db72 | 1433 | XConvertSelection (display, selection_atom, type_atom, target_property, |
5d0ba25b | 1434 | requestor_window, requestor_time); |
5c3a351a | 1435 | XFlush (display); |
ede4db72 RS |
1436 | |
1437 | /* Prepare to block until the reply has been read. */ | |
5d0ba25b | 1438 | reading_selection_window = requestor_window; |
ede4db72 | 1439 | reading_which_selection = selection_atom; |
f3fbd155 | 1440 | XSETCAR (reading_selection_reply, Qnil); |
55b2d45d RS |
1441 | |
1442 | frame = some_frame_on_display (dpyinfo); | |
1443 | ||
1444 | /* If the display no longer has frames, we can't expect | |
1445 | to get many more selection requests from it, so don't | |
1446 | bother trying to queue them. */ | |
1447 | if (!NILP (frame)) | |
1448 | { | |
dd0fe424 | 1449 | x_start_queuing_selection_requests (); |
55b2d45d RS |
1450 | |
1451 | record_unwind_protect (queue_selection_requests_unwind, | |
dd0fe424 | 1452 | Qnil); |
55b2d45d | 1453 | } |
ede4db72 RS |
1454 | UNBLOCK_INPUT; |
1455 | ||
80da0190 RS |
1456 | /* This allows quits. Also, don't wait forever. */ |
1457 | secs = x_selection_timeout / 1000; | |
1458 | usecs = (x_selection_timeout % 1000) * 1000; | |
d9c0d4a3 | 1459 | TRACE1 (" Start waiting %d secs for SelectionNotify", secs); |
d64b707c KS |
1460 | wait_reading_process_output (secs, usecs, 0, 0, |
1461 | reading_selection_reply, NULL, 0); | |
d9c0d4a3 | 1462 | TRACE1 (" Got event = %d", !NILP (XCAR (reading_selection_reply))); |
ede4db72 | 1463 | |
7c6b2ea4 | 1464 | BLOCK_INPUT; |
c525d842 CY |
1465 | if (x_had_errors_p (display)) |
1466 | error ("Cannot get selection"); | |
1467 | /* This calls x_uncatch_errors. */ | |
9ba8e10d | 1468 | unbind_to (count, Qnil); |
7c6b2ea4 RS |
1469 | UNBLOCK_INPUT; |
1470 | ||
8e713be6 | 1471 | if (NILP (XCAR (reading_selection_reply))) |
606140dd | 1472 | error ("Timed out waiting for reply from selection owner"); |
8e713be6 | 1473 | if (EQ (XCAR (reading_selection_reply), Qlambda)) |
12061f06 | 1474 | return Qnil; |
ede4db72 RS |
1475 | |
1476 | /* Otherwise, the selection is waiting for us on the requested property. */ | |
1477 | return | |
5d0ba25b | 1478 | x_get_window_property_as_lisp_data (display, requestor_window, |
ede4db72 RS |
1479 | target_property, target_type, |
1480 | selection_atom); | |
1481 | } | |
1482 | \f | |
1483 | /* Subroutines of x_get_window_property_as_lisp_data */ | |
1484 | ||
4feb31b2 | 1485 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1486 | |
ede4db72 RS |
1487 | static void |
1488 | x_get_window_property (display, window, property, data_ret, bytes_ret, | |
1489 | actual_type_ret, actual_format_ret, actual_size_ret, | |
1490 | delete_p) | |
1491 | Display *display; | |
1492 | Window window; | |
1493 | Atom property; | |
1494 | unsigned char **data_ret; | |
1495 | int *bytes_ret; | |
1496 | Atom *actual_type_ret; | |
1497 | int *actual_format_ret; | |
1498 | unsigned long *actual_size_ret; | |
1499 | int delete_p; | |
1500 | { | |
1501 | int total_size; | |
1502 | unsigned long bytes_remaining; | |
1503 | int offset = 0; | |
1504 | unsigned char *tmp_data = 0; | |
1505 | int result; | |
1506 | int buffer_size = SELECTION_QUANTUM (display); | |
1b65481e | 1507 | |
d9c0d4a3 GM |
1508 | if (buffer_size > MAX_SELECTION_QUANTUM) |
1509 | buffer_size = MAX_SELECTION_QUANTUM; | |
1b65481e | 1510 | |
ede4db72 | 1511 | BLOCK_INPUT; |
1b65481e | 1512 | |
ede4db72 RS |
1513 | /* First probe the thing to find out how big it is. */ |
1514 | result = XGetWindowProperty (display, window, property, | |
137edb72 | 1515 | 0L, 0L, False, AnyPropertyType, |
ede4db72 RS |
1516 | actual_type_ret, actual_format_ret, |
1517 | actual_size_ret, | |
1518 | &bytes_remaining, &tmp_data); | |
ede4db72 RS |
1519 | if (result != Success) |
1520 | { | |
2f65feb6 | 1521 | UNBLOCK_INPUT; |
ede4db72 RS |
1522 | *data_ret = 0; |
1523 | *bytes_ret = 0; | |
1524 | return; | |
1525 | } | |
1b65481e | 1526 | |
0158abbc RS |
1527 | /* This was allocated by Xlib, so use XFree. */ |
1528 | XFree ((char *) tmp_data); | |
1b65481e | 1529 | |
ede4db72 RS |
1530 | if (*actual_type_ret == None || *actual_format_ret == 0) |
1531 | { | |
2f65feb6 | 1532 | UNBLOCK_INPUT; |
ede4db72 RS |
1533 | return; |
1534 | } | |
1535 | ||
1536 | total_size = bytes_remaining + 1; | |
1537 | *data_ret = (unsigned char *) xmalloc (total_size); | |
1b65481e | 1538 | |
2a1a4c9d | 1539 | /* Now read, until we've gotten it all. */ |
ede4db72 RS |
1540 | while (bytes_remaining) |
1541 | { | |
d9c0d4a3 | 1542 | #ifdef TRACE_SELECTION |
ede4db72 RS |
1543 | int last = bytes_remaining; |
1544 | #endif | |
1545 | result | |
1546 | = XGetWindowProperty (display, window, property, | |
137edb72 | 1547 | (long)offset/4, (long)buffer_size/4, |
2f65feb6 | 1548 | False, |
ede4db72 RS |
1549 | AnyPropertyType, |
1550 | actual_type_ret, actual_format_ret, | |
1551 | actual_size_ret, &bytes_remaining, &tmp_data); | |
d9c0d4a3 GM |
1552 | |
1553 | TRACE2 ("Read %ld bytes from property %s", | |
1554 | last - bytes_remaining, | |
1555 | XGetAtomName (display, property)); | |
1556 | ||
ede4db72 RS |
1557 | /* If this doesn't return Success at this point, it means that |
1558 | some clod deleted the selection while we were in the midst of | |
d9c0d4a3 GM |
1559 | reading it. Deal with that, I guess.... */ |
1560 | if (result != Success) | |
1561 | break; | |
e22cf39c JD |
1562 | |
1563 | /* The man page for XGetWindowProperty says: | |
1564 | "If the returned format is 32, the returned data is represented | |
1565 | as a long array and should be cast to that type to obtain the | |
1566 | elements." | |
1567 | This applies even if long is more than 32 bits, the X library | |
1568 | converts from 32 bit elements received from the X server to long | |
1569 | and passes the long array to us. Thus, for that case bcopy can not | |
1570 | be used. We convert to a 32 bit type here, because so much code | |
1571 | assume on that. | |
1572 | ||
1573 | The bytes and offsets passed to XGetWindowProperty refers to the | |
1574 | property and those are indeed in 32 bit quantities if format is 32. */ | |
1575 | ||
1576 | if (*actual_format_ret == 32 && *actual_format_ret < BITS_PER_LONG) | |
1577 | { | |
1578 | unsigned long i; | |
1579 | int *idata = (int *) ((*data_ret) + offset); | |
1580 | long *ldata = (long *) tmp_data; | |
1581 | ||
1582 | for (i = 0; i < *actual_size_ret; ++i) | |
1583 | { | |
1584 | idata[i]= (int) ldata[i]; | |
1585 | offset += 4; | |
1586 | } | |
1587 | } | |
1588 | else | |
1589 | { | |
1590 | *actual_size_ret *= *actual_format_ret / 8; | |
1591 | bcopy (tmp_data, (*data_ret) + offset, *actual_size_ret); | |
1592 | offset += *actual_size_ret; | |
1593 | } | |
1b65481e | 1594 | |
0158abbc RS |
1595 | /* This was allocated by Xlib, so use XFree. */ |
1596 | XFree ((char *) tmp_data); | |
ede4db72 | 1597 | } |
2f65feb6 | 1598 | |
5c3a351a | 1599 | XFlush (display); |
ede4db72 RS |
1600 | UNBLOCK_INPUT; |
1601 | *bytes_ret = offset; | |
1602 | } | |
1603 | \f | |
4feb31b2 | 1604 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1605 | |
ede4db72 RS |
1606 | static void |
1607 | receive_incremental_selection (display, window, property, target_type, | |
1608 | min_size_bytes, data_ret, size_bytes_ret, | |
1609 | type_ret, format_ret, size_ret) | |
1610 | Display *display; | |
1611 | Window window; | |
1612 | Atom property; | |
1613 | Lisp_Object target_type; /* for error messages only */ | |
1614 | unsigned int min_size_bytes; | |
1615 | unsigned char **data_ret; | |
1616 | int *size_bytes_ret; | |
1617 | Atom *type_ret; | |
1618 | unsigned long *size_ret; | |
1619 | int *format_ret; | |
1620 | { | |
1621 | int offset = 0; | |
d1f21a66 | 1622 | struct prop_location *wait_object; |
ede4db72 RS |
1623 | *size_bytes_ret = min_size_bytes; |
1624 | *data_ret = (unsigned char *) xmalloc (*size_bytes_ret); | |
d9c0d4a3 GM |
1625 | |
1626 | TRACE1 ("Read %d bytes incrementally", min_size_bytes); | |
2f65feb6 RS |
1627 | |
1628 | /* At this point, we have read an INCR property. | |
1629 | Delete the property to ack it. | |
1630 | (But first, prepare to receive the next event in this handshake.) | |
ede4db72 RS |
1631 | |
1632 | Now, we must loop, waiting for the sending window to put a value on | |
1633 | that property, then reading the property, then deleting it to ack. | |
1634 | We are done when the sender places a property of length 0. | |
1635 | */ | |
2f65feb6 RS |
1636 | BLOCK_INPUT; |
1637 | XSelectInput (display, window, STANDARD_EVENT_SET | PropertyChangeMask); | |
d9c0d4a3 | 1638 | TRACE1 (" Delete property %s", |
dd0fe424 | 1639 | SDATA (SYMBOL_NAME (x_atom_to_symbol (display, property)))); |
2f65feb6 | 1640 | XDeleteProperty (display, window, property); |
d9c0d4a3 | 1641 | TRACE1 (" Expect new value of property %s", |
dd0fe424 | 1642 | SDATA (SYMBOL_NAME (x_atom_to_symbol (display, property)))); |
d1f21a66 RS |
1643 | wait_object = expect_property_change (display, window, property, |
1644 | PropertyNewValue); | |
5c3a351a | 1645 | XFlush (display); |
2f65feb6 RS |
1646 | UNBLOCK_INPUT; |
1647 | ||
ede4db72 RS |
1648 | while (1) |
1649 | { | |
1650 | unsigned char *tmp_data; | |
1651 | int tmp_size_bytes; | |
d9c0d4a3 GM |
1652 | |
1653 | TRACE0 (" Wait for property change"); | |
d1f21a66 | 1654 | wait_for_property_change (wait_object); |
1b65481e | 1655 | |
ede4db72 | 1656 | /* expect it again immediately, because x_get_window_property may |
2a1a4c9d | 1657 | .. no it won't, I don't get it. |
d9c0d4a3 GM |
1658 | .. Ok, I get it now, the Xt code that implements INCR is broken. */ |
1659 | TRACE0 (" Get property value"); | |
ede4db72 RS |
1660 | x_get_window_property (display, window, property, |
1661 | &tmp_data, &tmp_size_bytes, | |
1662 | type_ret, format_ret, size_ret, 1); | |
1663 | ||
d9c0d4a3 GM |
1664 | TRACE1 (" Read increment of %d bytes", tmp_size_bytes); |
1665 | ||
ede4db72 RS |
1666 | if (tmp_size_bytes == 0) /* we're done */ |
1667 | { | |
d9c0d4a3 GM |
1668 | TRACE0 ("Done reading incrementally"); |
1669 | ||
2f65feb6 RS |
1670 | if (! waiting_for_other_props_on_window (display, window)) |
1671 | XSelectInput (display, window, STANDARD_EVENT_SET); | |
4feb31b2 | 1672 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1673 | calls xmalloc itself. */ |
70fdbb46 | 1674 | xfree (tmp_data); |
ede4db72 RS |
1675 | break; |
1676 | } | |
2f65feb6 RS |
1677 | |
1678 | BLOCK_INPUT; | |
d9c0d4a3 GM |
1679 | TRACE1 (" ACK by deleting property %s", |
1680 | XGetAtomName (display, property)); | |
2f65feb6 | 1681 | XDeleteProperty (display, window, property); |
d1f21a66 RS |
1682 | wait_object = expect_property_change (display, window, property, |
1683 | PropertyNewValue); | |
5c3a351a | 1684 | XFlush (display); |
2f65feb6 RS |
1685 | UNBLOCK_INPUT; |
1686 | ||
ede4db72 RS |
1687 | if (*size_bytes_ret < offset + tmp_size_bytes) |
1688 | { | |
ede4db72 RS |
1689 | *size_bytes_ret = offset + tmp_size_bytes; |
1690 | *data_ret = (unsigned char *) xrealloc (*data_ret, *size_bytes_ret); | |
1691 | } | |
1b65481e | 1692 | |
018cfa07 | 1693 | bcopy (tmp_data, (*data_ret) + offset, tmp_size_bytes); |
ede4db72 | 1694 | offset += tmp_size_bytes; |
1b65481e | 1695 | |
4feb31b2 | 1696 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1697 | calls xmalloc itself. */ |
4feb31b2 | 1698 | xfree (tmp_data); |
ede4db72 RS |
1699 | } |
1700 | } | |
d9c0d4a3 | 1701 | |
ede4db72 RS |
1702 | \f |
1703 | /* Once a requested selection is "ready" (we got a SelectionNotify event), | |
1704 | fetch value from property PROPERTY of X window WINDOW on display DISPLAY. | |
1705 | TARGET_TYPE and SELECTION_ATOM are used in error message if this fails. */ | |
1706 | ||
1707 | static Lisp_Object | |
1708 | x_get_window_property_as_lisp_data (display, window, property, target_type, | |
1709 | selection_atom) | |
1710 | Display *display; | |
1711 | Window window; | |
1712 | Atom property; | |
1713 | Lisp_Object target_type; /* for error messages only */ | |
1714 | Atom selection_atom; /* for error messages only */ | |
1715 | { | |
1716 | Atom actual_type; | |
1717 | int actual_format; | |
1718 | unsigned long actual_size; | |
1719 | unsigned char *data = 0; | |
1720 | int bytes = 0; | |
1721 | Lisp_Object val; | |
5c3a351a | 1722 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 | 1723 | |
d9c0d4a3 GM |
1724 | TRACE0 ("Reading selection data"); |
1725 | ||
ede4db72 RS |
1726 | x_get_window_property (display, window, property, &data, &bytes, |
1727 | &actual_type, &actual_format, &actual_size, 1); | |
1728 | if (! data) | |
1729 | { | |
1730 | int there_is_a_selection_owner; | |
1731 | BLOCK_INPUT; | |
1732 | there_is_a_selection_owner | |
1733 | = XGetSelectionOwner (display, selection_atom); | |
1734 | UNBLOCK_INPUT; | |
4d30ce50 KS |
1735 | if (there_is_a_selection_owner) |
1736 | signal_error ("Selection owner couldn't convert", | |
1737 | actual_type | |
1738 | ? list2 (target_type, | |
1739 | x_atom_to_symbol (display, actual_type)) | |
1740 | : target_type); | |
1741 | else | |
1742 | signal_error ("No selection", | |
1743 | x_atom_to_symbol (display, selection_atom)); | |
ede4db72 | 1744 | } |
1b65481e | 1745 | |
5c3a351a | 1746 | if (actual_type == dpyinfo->Xatom_INCR) |
ede4db72 RS |
1747 | { |
1748 | /* That wasn't really the data, just the beginning. */ | |
1749 | ||
1750 | unsigned int min_size_bytes = * ((unsigned int *) data); | |
1751 | BLOCK_INPUT; | |
4feb31b2 | 1752 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1753 | calls xmalloc itself. */ |
4feb31b2 | 1754 | xfree ((char *) data); |
ede4db72 RS |
1755 | UNBLOCK_INPUT; |
1756 | receive_incremental_selection (display, window, property, target_type, | |
1757 | min_size_bytes, &data, &bytes, | |
1758 | &actual_type, &actual_format, | |
1759 | &actual_size); | |
1760 | } | |
1761 | ||
2f65feb6 | 1762 | BLOCK_INPUT; |
d9c0d4a3 | 1763 | TRACE1 (" Delete property %s", XGetAtomName (display, property)); |
2f65feb6 | 1764 | XDeleteProperty (display, window, property); |
5c3a351a | 1765 | XFlush (display); |
2f65feb6 RS |
1766 | UNBLOCK_INPUT; |
1767 | ||
ede4db72 RS |
1768 | /* It's been read. Now convert it to a lisp object in some semi-rational |
1769 | manner. */ | |
1770 | val = selection_data_to_lisp_data (display, data, bytes, | |
1771 | actual_type, actual_format); | |
1b65481e | 1772 | |
4feb31b2 | 1773 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1774 | calls xmalloc itself. */ |
4feb31b2 | 1775 | xfree ((char *) data); |
ede4db72 RS |
1776 | return val; |
1777 | } | |
1778 | \f | |
1779 | /* These functions convert from the selection data read from the server into | |
1780 | something that we can use from Lisp, and vice versa. | |
1781 | ||
1782 | Type: Format: Size: Lisp Type: | |
1783 | ----- ------- ----- ----------- | |
1784 | * 8 * String | |
1785 | ATOM 32 1 Symbol | |
1786 | ATOM 32 > 1 Vector of Symbols | |
1787 | * 16 1 Integer | |
1788 | * 16 > 1 Vector of Integers | |
1789 | * 32 1 if <=16 bits: Integer | |
1790 | if > 16 bits: Cons of top16, bot16 | |
1791 | * 32 > 1 Vector of the above | |
1792 | ||
1793 | When converting a Lisp number to C, it is assumed to be of format 16 if | |
1794 | it is an integer, and of format 32 if it is a cons of two integers. | |
1795 | ||
1796 | When converting a vector of numbers from Lisp to C, it is assumed to be | |
1797 | of format 16 if every element in the vector is an integer, and is assumed | |
1798 | to be of format 32 if any element is a cons of two integers. | |
1799 | ||
1800 | When converting an object to C, it may be of the form (SYMBOL . <data>) | |
1801 | where SYMBOL is what we should claim that the type is. Format and | |
b8d6f4af JD |
1802 | representation are as above. |
1803 | ||
1804 | Important: When format is 32, data should contain an array of int, | |
1805 | not an array of long as the X library returns. This makes a difference | |
1806 | when sizeof(long) != sizeof(int). */ | |
ede4db72 RS |
1807 | |
1808 | ||
1809 | ||
1810 | static Lisp_Object | |
1811 | selection_data_to_lisp_data (display, data, size, type, format) | |
1812 | Display *display; | |
1813 | unsigned char *data; | |
1814 | Atom type; | |
1815 | int size, format; | |
1816 | { | |
5c3a351a | 1817 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 | 1818 | |
5c3a351a | 1819 | if (type == dpyinfo->Xatom_NULL) |
ede4db72 RS |
1820 | return QNULL; |
1821 | ||
1822 | /* Convert any 8-bit data to a string, for compactness. */ | |
1823 | else if (format == 8) | |
e6c7c988 | 1824 | { |
e57ad4d8 KH |
1825 | Lisp_Object str, lispy_type; |
1826 | ||
1827 | str = make_unibyte_string ((char *) data, size); | |
1828 | /* Indicate that this string is from foreign selection by a text | |
1829 | property `foreign-selection' so that the caller of | |
1830 | x-get-selection-internal (usually x-get-selection) can know | |
1831 | that the string must be decode. */ | |
1832 | if (type == dpyinfo->Xatom_COMPOUND_TEXT) | |
1833 | lispy_type = QCOMPOUND_TEXT; | |
1834 | else if (type == dpyinfo->Xatom_UTF8_STRING) | |
1835 | lispy_type = QUTF8_STRING; | |
e6c7c988 | 1836 | else |
e57ad4d8 KH |
1837 | lispy_type = QSTRING; |
1838 | Fput_text_property (make_number (0), make_number (size), | |
1839 | Qforeign_selection, lispy_type, str); | |
e6c7c988 KH |
1840 | return str; |
1841 | } | |
ede4db72 RS |
1842 | /* Convert a single atom to a Lisp_Symbol. Convert a set of atoms to |
1843 | a vector of symbols. | |
1844 | */ | |
1845 | else if (type == XA_ATOM) | |
1846 | { | |
1847 | int i; | |
b8d6f4af JD |
1848 | /* On a 64 bit machine sizeof(Atom) == sizeof(long) == 8. |
1849 | But the callers of these function has made sure the data for | |
1850 | format == 32 is an array of int. Thus, use int instead | |
1851 | of Atom. */ | |
1852 | int *idata = (int *) data; | |
1853 | ||
1854 | if (size == sizeof (int)) | |
1855 | return x_atom_to_symbol (display, (Atom) idata[0]); | |
ede4db72 RS |
1856 | else |
1857 | { | |
b8d6f4af | 1858 | Lisp_Object v = Fmake_vector (make_number (size / sizeof (int)), |
e607a484 | 1859 | make_number (0)); |
b8d6f4af | 1860 | for (i = 0; i < size / sizeof (int); i++) |
e607a484 | 1861 | Faset (v, make_number (i), |
b8d6f4af | 1862 | x_atom_to_symbol (display, (Atom) idata[i])); |
ede4db72 RS |
1863 | return v; |
1864 | } | |
1865 | } | |
1866 | ||
1ad08acd RS |
1867 | /* Convert a single 16-bit number or a small 32-bit number to a Lisp_Int. |
1868 | If the number is 32 bits and won't fit in a Lisp_Int, | |
1869 | convert it to a cons of integers, 16 bits in each half. | |
ede4db72 | 1870 | */ |
2f51feb8 AS |
1871 | else if (format == 32 && size == sizeof (int)) |
1872 | return long_to_cons (((unsigned int *) data) [0]); | |
ede4db72 RS |
1873 | else if (format == 16 && size == sizeof (short)) |
1874 | return make_number ((int) (((unsigned short *) data) [0])); | |
1875 | ||
1876 | /* Convert any other kind of data to a vector of numbers, represented | |
1877 | as above (as an integer, or a cons of two 16 bit integers.) | |
1878 | */ | |
1879 | else if (format == 16) | |
1880 | { | |
1881 | int i; | |
937a3875 RS |
1882 | Lisp_Object v; |
1883 | v = Fmake_vector (make_number (size / 2), make_number (0)); | |
1884 | for (i = 0; i < size / 2; i++) | |
ede4db72 RS |
1885 | { |
1886 | int j = (int) ((unsigned short *) data) [i]; | |
e607a484 | 1887 | Faset (v, make_number (i), make_number (j)); |
ede4db72 RS |
1888 | } |
1889 | return v; | |
1890 | } | |
1891 | else | |
1892 | { | |
1893 | int i; | |
e607a484 | 1894 | Lisp_Object v = Fmake_vector (make_number (size / 4), make_number (0)); |
ede4db72 RS |
1895 | for (i = 0; i < size / 4; i++) |
1896 | { | |
2f51feb8 | 1897 | unsigned int j = ((unsigned int *) data) [i]; |
e607a484 | 1898 | Faset (v, make_number (i), long_to_cons (j)); |
ede4db72 RS |
1899 | } |
1900 | return v; | |
1901 | } | |
1902 | } | |
1903 | ||
1904 | ||
4feb31b2 | 1905 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1906 | |
ede4db72 RS |
1907 | static void |
1908 | lisp_data_to_selection_data (display, obj, | |
aca39f42 RS |
1909 | data_ret, type_ret, size_ret, |
1910 | format_ret, nofree_ret) | |
ede4db72 RS |
1911 | Display *display; |
1912 | Lisp_Object obj; | |
1913 | unsigned char **data_ret; | |
1914 | Atom *type_ret; | |
1915 | unsigned int *size_ret; | |
1916 | int *format_ret; | |
aca39f42 | 1917 | int *nofree_ret; |
ede4db72 RS |
1918 | { |
1919 | Lisp_Object type = Qnil; | |
5c3a351a | 1920 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
aca39f42 RS |
1921 | |
1922 | *nofree_ret = 0; | |
1923 | ||
8e713be6 | 1924 | if (CONSP (obj) && SYMBOLP (XCAR (obj))) |
ede4db72 | 1925 | { |
8e713be6 KR |
1926 | type = XCAR (obj); |
1927 | obj = XCDR (obj); | |
1928 | if (CONSP (obj) && NILP (XCDR (obj))) | |
1929 | obj = XCAR (obj); | |
ede4db72 RS |
1930 | } |
1931 | ||
1932 | if (EQ (obj, QNULL) || (EQ (type, QNULL))) | |
1933 | { /* This is not the same as declining */ | |
1934 | *format_ret = 32; | |
1935 | *size_ret = 0; | |
1936 | *data_ret = 0; | |
1937 | type = QNULL; | |
1938 | } | |
1939 | else if (STRINGP (obj)) | |
1940 | { | |
1bd70c6e KH |
1941 | if (SCHARS (obj) < SBYTES (obj)) |
1942 | /* OBJ is a multibyte string containing a non-ASCII char. */ | |
4d30ce50 | 1943 | signal_error ("Non-ASCII string must be encoded in advance", obj); |
7b9ae523 | 1944 | if (NILP (type)) |
5109c8dd KH |
1945 | type = QSTRING; |
1946 | *format_ret = 8; | |
1947 | *size_ret = SBYTES (obj); | |
1948 | *data_ret = SDATA (obj); | |
1949 | *nofree_ret = 1; | |
ede4db72 RS |
1950 | } |
1951 | else if (SYMBOLP (obj)) | |
1952 | { | |
1953 | *format_ret = 32; | |
1954 | *size_ret = 1; | |
1955 | *data_ret = (unsigned char *) xmalloc (sizeof (Atom) + 1); | |
1956 | (*data_ret) [sizeof (Atom)] = 0; | |
5c3a351a | 1957 | (*(Atom **) data_ret) [0] = symbol_to_x_atom (dpyinfo, display, obj); |
ede4db72 RS |
1958 | if (NILP (type)) type = QATOM; |
1959 | } | |
7da64e5c | 1960 | else if (INTEGERP (obj) |
ede4db72 RS |
1961 | && XINT (obj) < 0xFFFF |
1962 | && XINT (obj) > -0xFFFF) | |
1963 | { | |
1964 | *format_ret = 16; | |
1965 | *size_ret = 1; | |
1966 | *data_ret = (unsigned char *) xmalloc (sizeof (short) + 1); | |
1967 | (*data_ret) [sizeof (short)] = 0; | |
1968 | (*(short **) data_ret) [0] = (short) XINT (obj); | |
1969 | if (NILP (type)) type = QINTEGER; | |
1970 | } | |
a87ed99c | 1971 | else if (INTEGERP (obj) |
8e713be6 KR |
1972 | || (CONSP (obj) && INTEGERP (XCAR (obj)) |
1973 | && (INTEGERP (XCDR (obj)) | |
1974 | || (CONSP (XCDR (obj)) | |
1975 | && INTEGERP (XCAR (XCDR (obj))))))) | |
ede4db72 RS |
1976 | { |
1977 | *format_ret = 32; | |
1978 | *size_ret = 1; | |
1979 | *data_ret = (unsigned char *) xmalloc (sizeof (long) + 1); | |
1980 | (*data_ret) [sizeof (long)] = 0; | |
1981 | (*(unsigned long **) data_ret) [0] = cons_to_long (obj); | |
1982 | if (NILP (type)) type = QINTEGER; | |
1983 | } | |
1984 | else if (VECTORP (obj)) | |
1985 | { | |
1986 | /* Lisp_Vectors may represent a set of ATOMs; | |
1987 | a set of 16 or 32 bit INTEGERs; | |
1988 | or a set of ATOM_PAIRs (represented as [[A1 A2] [A3 A4] ...] | |
1989 | */ | |
1990 | int i; | |
1991 | ||
1992 | if (SYMBOLP (XVECTOR (obj)->contents [0])) | |
1993 | /* This vector is an ATOM set */ | |
1994 | { | |
1995 | if (NILP (type)) type = QATOM; | |
1996 | *size_ret = XVECTOR (obj)->size; | |
1997 | *format_ret = 32; | |
1998 | *data_ret = (unsigned char *) xmalloc ((*size_ret) * sizeof (Atom)); | |
1999 | for (i = 0; i < *size_ret; i++) | |
2000 | if (SYMBOLP (XVECTOR (obj)->contents [i])) | |
2001 | (*(Atom **) data_ret) [i] | |
5c3a351a | 2002 | = symbol_to_x_atom (dpyinfo, display, XVECTOR (obj)->contents [i]); |
ede4db72 | 2003 | else |
4d30ce50 | 2004 | signal_error ("All elements of selection vector must have same type", obj); |
ede4db72 RS |
2005 | } |
2006 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
2007 | else if (VECTORP (XVECTOR (obj)->contents [0])) | |
2008 | /* This vector is an ATOM_PAIR set */ | |
2009 | { | |
2010 | if (NILP (type)) type = QATOM_PAIR; | |
2011 | *size_ret = XVECTOR (obj)->size; | |
2012 | *format_ret = 32; | |
2013 | *data_ret = (unsigned char *) | |
2014 | xmalloc ((*size_ret) * sizeof (Atom) * 2); | |
2015 | for (i = 0; i < *size_ret; i++) | |
2016 | if (VECTORP (XVECTOR (obj)->contents [i])) | |
2017 | { | |
2018 | Lisp_Object pair = XVECTOR (obj)->contents [i]; | |
2019 | if (XVECTOR (pair)->size != 2) | |
4d30ce50 KS |
2020 | signal_error ( |
2021 | "Elements of the vector must be vectors of exactly two elements", | |
2022 | pair); | |
1b65481e | 2023 | |
ede4db72 | 2024 | (*(Atom **) data_ret) [i * 2] |
5c3a351a RS |
2025 | = symbol_to_x_atom (dpyinfo, display, |
2026 | XVECTOR (pair)->contents [0]); | |
ede4db72 | 2027 | (*(Atom **) data_ret) [(i * 2) + 1] |
5c3a351a RS |
2028 | = symbol_to_x_atom (dpyinfo, display, |
2029 | XVECTOR (pair)->contents [1]); | |
ede4db72 RS |
2030 | } |
2031 | else | |
4d30ce50 KS |
2032 | signal_error ("All elements of the vector must be of the same type", |
2033 | obj); | |
1b65481e | 2034 | |
ede4db72 RS |
2035 | } |
2036 | #endif | |
2037 | else | |
2038 | /* This vector is an INTEGER set, or something like it */ | |
2039 | { | |
e22cf39c | 2040 | int data_size = 2; |
ede4db72 RS |
2041 | *size_ret = XVECTOR (obj)->size; |
2042 | if (NILP (type)) type = QINTEGER; | |
2043 | *format_ret = 16; | |
2044 | for (i = 0; i < *size_ret; i++) | |
2045 | if (CONSP (XVECTOR (obj)->contents [i])) | |
2046 | *format_ret = 32; | |
7da64e5c | 2047 | else if (!INTEGERP (XVECTOR (obj)->contents [i])) |
4d30ce50 KS |
2048 | signal_error (/* Qselection_error */ |
2049 | "Elements of selection vector must be integers or conses of integers", | |
2050 | obj); | |
ede4db72 | 2051 | |
e22cf39c JD |
2052 | /* Use sizeof(long) even if it is more than 32 bits. See comment |
2053 | in x_get_window_property and x_fill_property_data. */ | |
6e816df5 | 2054 | |
e22cf39c JD |
2055 | if (*format_ret == 32) data_size = sizeof(long); |
2056 | *data_ret = (unsigned char *) xmalloc (*size_ret * data_size); | |
ede4db72 RS |
2057 | for (i = 0; i < *size_ret; i++) |
2058 | if (*format_ret == 32) | |
2059 | (*((unsigned long **) data_ret)) [i] | |
2060 | = cons_to_long (XVECTOR (obj)->contents [i]); | |
2061 | else | |
2062 | (*((unsigned short **) data_ret)) [i] | |
2063 | = (unsigned short) cons_to_long (XVECTOR (obj)->contents [i]); | |
2064 | } | |
2065 | } | |
2066 | else | |
4d30ce50 | 2067 | signal_error (/* Qselection_error */ "Unrecognized selection data", obj); |
ede4db72 | 2068 | |
5c3a351a | 2069 | *type_ret = symbol_to_x_atom (dpyinfo, display, type); |
ede4db72 RS |
2070 | } |
2071 | ||
2072 | static Lisp_Object | |
2073 | clean_local_selection_data (obj) | |
2074 | Lisp_Object obj; | |
2075 | { | |
2076 | if (CONSP (obj) | |
8e713be6 KR |
2077 | && INTEGERP (XCAR (obj)) |
2078 | && CONSP (XCDR (obj)) | |
2079 | && INTEGERP (XCAR (XCDR (obj))) | |
2080 | && NILP (XCDR (XCDR (obj)))) | |
2081 | obj = Fcons (XCAR (obj), XCDR (obj)); | |
ede4db72 RS |
2082 | |
2083 | if (CONSP (obj) | |
8e713be6 KR |
2084 | && INTEGERP (XCAR (obj)) |
2085 | && INTEGERP (XCDR (obj))) | |
ede4db72 | 2086 | { |
8e713be6 KR |
2087 | if (XINT (XCAR (obj)) == 0) |
2088 | return XCDR (obj); | |
2089 | if (XINT (XCAR (obj)) == -1) | |
2090 | return make_number (- XINT (XCDR (obj))); | |
ede4db72 RS |
2091 | } |
2092 | if (VECTORP (obj)) | |
2093 | { | |
2094 | int i; | |
2095 | int size = XVECTOR (obj)->size; | |
2096 | Lisp_Object copy; | |
2097 | if (size == 1) | |
2098 | return clean_local_selection_data (XVECTOR (obj)->contents [0]); | |
e607a484 | 2099 | copy = Fmake_vector (make_number (size), Qnil); |
ede4db72 RS |
2100 | for (i = 0; i < size; i++) |
2101 | XVECTOR (copy)->contents [i] | |
2102 | = clean_local_selection_data (XVECTOR (obj)->contents [i]); | |
2103 | return copy; | |
2104 | } | |
2105 | return obj; | |
2106 | } | |
2107 | \f | |
2108 | /* Called from XTread_socket to handle SelectionNotify events. | |
606140dd KH |
2109 | If it's the selection we are waiting for, stop waiting |
2110 | by setting the car of reading_selection_reply to non-nil. | |
2111 | We store t there if the reply is successful, lambda if not. */ | |
ede4db72 RS |
2112 | |
2113 | void | |
2114 | x_handle_selection_notify (event) | |
2115 | XSelectionEvent *event; | |
2116 | { | |
5d0ba25b | 2117 | if (event->requestor != reading_selection_window) |
ede4db72 RS |
2118 | return; |
2119 | if (event->selection != reading_which_selection) | |
2120 | return; | |
2121 | ||
d9c0d4a3 | 2122 | TRACE0 ("Received SelectionNotify"); |
f3fbd155 KR |
2123 | XSETCAR (reading_selection_reply, |
2124 | (event->property != 0 ? Qt : Qlambda)); | |
ede4db72 RS |
2125 | } |
2126 | ||
2127 | \f | |
a0d76c27 | 2128 | DEFUN ("x-own-selection-internal", Fx_own_selection_internal, |
8c1a1077 PJ |
2129 | Sx_own_selection_internal, 2, 2, 0, |
2130 | doc: /* Assert an X selection of the given TYPE with the given VALUE. | |
2131 | TYPE is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2132 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2133 | VALUE is typically a string, or a cons of two markers, but may be | |
2134 | anything that the functions on `selection-converter-alist' know about. */) | |
2135 | (selection_name, selection_value) | |
ede4db72 RS |
2136 | Lisp_Object selection_name, selection_value; |
2137 | { | |
703e0710 | 2138 | check_x (); |
b7826503 | 2139 | CHECK_SYMBOL (selection_name); |
253b2298 | 2140 | if (NILP (selection_value)) error ("SELECTION-VALUE may not be nil"); |
ede4db72 RS |
2141 | x_own_selection (selection_name, selection_value); |
2142 | return selection_value; | |
2143 | } | |
2144 | ||
2145 | ||
2146 | /* Request the selection value from the owner. If we are the owner, | |
2147 | simply return our selection value. If we are not the owner, this | |
2148 | will block until all of the data has arrived. */ | |
2149 | ||
a0d76c27 | 2150 | DEFUN ("x-get-selection-internal", Fx_get_selection_internal, |
3a42401d | 2151 | Sx_get_selection_internal, 2, 3, 0, |
8c1a1077 PJ |
2152 | doc: /* Return text selected from some X window. |
2153 | SELECTION is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2154 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
3a42401d JD |
2155 | TYPE is the type of data desired, typically `STRING'. |
2156 | TIME_STAMP is the time to use in the XConvertSelection call for foreign | |
2157 | selections. If omitted, defaults to the time for the last event. */) | |
2158 | (selection_symbol, target_type, time_stamp) | |
2159 | Lisp_Object selection_symbol, target_type, time_stamp; | |
ede4db72 RS |
2160 | { |
2161 | Lisp_Object val = Qnil; | |
2162 | struct gcpro gcpro1, gcpro2; | |
2163 | GCPRO2 (target_type, val); /* we store newly consed data into these */ | |
703e0710 | 2164 | check_x (); |
b7826503 | 2165 | CHECK_SYMBOL (selection_symbol); |
ede4db72 RS |
2166 | |
2167 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
2168 | if (CONSP (target_type) | |
8e713be6 | 2169 | && XCAR (target_type) == QMULTIPLE) |
ede4db72 | 2170 | { |
b7826503 | 2171 | CHECK_VECTOR (XCDR (target_type)); |
ede4db72 RS |
2172 | /* So we don't destructively modify this... */ |
2173 | target_type = copy_multiple_data (target_type); | |
2174 | } | |
2175 | else | |
2176 | #endif | |
b7826503 | 2177 | CHECK_SYMBOL (target_type); |
ede4db72 | 2178 | |
5109c8dd | 2179 | val = x_get_local_selection (selection_symbol, target_type, 1); |
ede4db72 RS |
2180 | |
2181 | if (NILP (val)) | |
2182 | { | |
3a42401d | 2183 | val = x_get_foreign_selection (selection_symbol, target_type, time_stamp); |
ede4db72 RS |
2184 | goto DONE; |
2185 | } | |
2186 | ||
2187 | if (CONSP (val) | |
8e713be6 | 2188 | && SYMBOLP (XCAR (val))) |
ede4db72 | 2189 | { |
8e713be6 KR |
2190 | val = XCDR (val); |
2191 | if (CONSP (val) && NILP (XCDR (val))) | |
2192 | val = XCAR (val); | |
ede4db72 RS |
2193 | } |
2194 | val = clean_local_selection_data (val); | |
2195 | DONE: | |
2196 | UNGCPRO; | |
2197 | return val; | |
2198 | } | |
2199 | ||
a0d76c27 | 2200 | DEFUN ("x-disown-selection-internal", Fx_disown_selection_internal, |
8c1a1077 PJ |
2201 | Sx_disown_selection_internal, 1, 2, 0, |
2202 | doc: /* If we own the selection SELECTION, disown it. | |
2203 | Disowning it means there is no such selection. */) | |
2204 | (selection, time) | |
ede4db72 RS |
2205 | Lisp_Object selection; |
2206 | Lisp_Object time; | |
2207 | { | |
ede4db72 RS |
2208 | Time timestamp; |
2209 | Atom selection_atom; | |
31df61d6 AS |
2210 | union { |
2211 | struct selection_input_event sie; | |
2212 | struct input_event ie; | |
2213 | } event; | |
3834c318 | 2214 | Display *display; |
5c3a351a | 2215 | struct x_display_info *dpyinfo; |
378c33ca | 2216 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2217 | |
703e0710 | 2218 | check_x (); |
428a555e KL |
2219 | if (! FRAME_X_P (sf)) |
2220 | return Qnil; | |
2221 | ||
378c33ca GM |
2222 | display = FRAME_X_DISPLAY (sf); |
2223 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
b7826503 | 2224 | CHECK_SYMBOL (selection); |
ede4db72 | 2225 | if (NILP (time)) |
7da64e5c | 2226 | timestamp = last_event_timestamp; |
ede4db72 RS |
2227 | else |
2228 | timestamp = cons_to_long (time); | |
2229 | ||
2230 | if (NILP (assq_no_quit (selection, Vselection_alist))) | |
2231 | return Qnil; /* Don't disown the selection when we're not the owner. */ | |
2232 | ||
5c3a351a | 2233 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection); |
ede4db72 RS |
2234 | |
2235 | BLOCK_INPUT; | |
2236 | XSetSelectionOwner (display, selection_atom, None, timestamp); | |
2237 | UNBLOCK_INPUT; | |
2238 | ||
eb8c3be9 | 2239 | /* It doesn't seem to be guaranteed that a SelectionClear event will be |
ede4db72 RS |
2240 | generated for a window which owns the selection when that window sets |
2241 | the selection owner to None. The NCD server does, the MIT Sun4 server | |
2242 | doesn't. So we synthesize one; this means we might get two, but | |
2243 | that's ok, because the second one won't have any effect. */ | |
31df61d6 AS |
2244 | SELECTION_EVENT_DISPLAY (&event.sie) = display; |
2245 | SELECTION_EVENT_SELECTION (&event.sie) = selection_atom; | |
2246 | SELECTION_EVENT_TIME (&event.sie) = timestamp; | |
2247 | x_handle_selection_clear (&event.ie); | |
ede4db72 RS |
2248 | |
2249 | return Qt; | |
2250 | } | |
2251 | ||
a87ed99c RS |
2252 | /* Get rid of all the selections in buffer BUFFER. |
2253 | This is used when we kill a buffer. */ | |
2254 | ||
2255 | void | |
2256 | x_disown_buffer_selections (buffer) | |
2257 | Lisp_Object buffer; | |
2258 | { | |
2259 | Lisp_Object tail; | |
2260 | struct buffer *buf = XBUFFER (buffer); | |
2261 | ||
8e713be6 | 2262 | for (tail = Vselection_alist; CONSP (tail); tail = XCDR (tail)) |
a87ed99c RS |
2263 | { |
2264 | Lisp_Object elt, value; | |
8e713be6 KR |
2265 | elt = XCAR (tail); |
2266 | value = XCDR (elt); | |
2267 | if (CONSP (value) && MARKERP (XCAR (value)) | |
2268 | && XMARKER (XCAR (value))->buffer == buf) | |
2269 | Fx_disown_selection_internal (XCAR (elt), Qnil); | |
a87ed99c RS |
2270 | } |
2271 | } | |
ede4db72 RS |
2272 | |
2273 | DEFUN ("x-selection-owner-p", Fx_selection_owner_p, Sx_selection_owner_p, | |
8c1a1077 PJ |
2274 | 0, 1, 0, |
2275 | doc: /* Whether the current Emacs process owns 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 | { | |
703e0710 | 2284 | check_x (); |
b7826503 | 2285 | CHECK_SYMBOL (selection); |
ede4db72 RS |
2286 | if (EQ (selection, Qnil)) selection = QPRIMARY; |
2287 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
1b65481e | 2288 | |
ede4db72 RS |
2289 | if (NILP (Fassq (selection, Vselection_alist))) |
2290 | return Qnil; | |
2291 | return Qt; | |
2292 | } | |
2293 | ||
2294 | DEFUN ("x-selection-exists-p", Fx_selection_exists_p, Sx_selection_exists_p, | |
8c1a1077 PJ |
2295 | 0, 1, 0, |
2296 | doc: /* Whether there is an owner for the given X Selection. | |
2297 | The arg should be the name of the selection in question, typically one of | |
2298 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2299 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2300 | For convenience, the symbol nil is the same as `PRIMARY', | |
2301 | and t is the same as `SECONDARY'. */) | |
2302 | (selection) | |
ede4db72 RS |
2303 | Lisp_Object selection; |
2304 | { | |
2305 | Window owner; | |
356ba514 | 2306 | Atom atom; |
3834c318 | 2307 | Display *dpy; |
378c33ca | 2308 | struct frame *sf = SELECTED_FRAME (); |
3834c318 | 2309 | |
b8c70430 | 2310 | /* It should be safe to call this before we have an X frame. */ |
378c33ca | 2311 | if (! FRAME_X_P (sf)) |
b8c70430 RS |
2312 | return Qnil; |
2313 | ||
378c33ca | 2314 | dpy = FRAME_X_DISPLAY (sf); |
b7826503 | 2315 | CHECK_SYMBOL (selection); |
ede4db72 RS |
2316 | if (!NILP (Fx_selection_owner_p (selection))) |
2317 | return Qt; | |
356ba514 RS |
2318 | if (EQ (selection, Qnil)) selection = QPRIMARY; |
2319 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
378c33ca | 2320 | atom = symbol_to_x_atom (FRAME_X_DISPLAY_INFO (sf), dpy, selection); |
356ba514 RS |
2321 | if (atom == 0) |
2322 | return Qnil; | |
ede4db72 | 2323 | BLOCK_INPUT; |
356ba514 | 2324 | owner = XGetSelectionOwner (dpy, atom); |
ede4db72 RS |
2325 | UNBLOCK_INPUT; |
2326 | return (owner ? Qt : Qnil); | |
2327 | } | |
2328 | ||
2329 | \f | |
2330 | #ifdef CUT_BUFFER_SUPPORT | |
2331 | ||
ede4db72 RS |
2332 | /* Ensure that all 8 cut buffers exist. ICCCM says we gotta... */ |
2333 | static void | |
2334 | initialize_cut_buffers (display, window) | |
2335 | Display *display; | |
2336 | Window window; | |
2337 | { | |
2338 | unsigned char *data = (unsigned char *) ""; | |
2339 | BLOCK_INPUT; | |
2340 | #define FROB(atom) XChangeProperty (display, window, atom, XA_STRING, 8, \ | |
2341 | PropModeAppend, data, 0) | |
2342 | FROB (XA_CUT_BUFFER0); | |
2343 | FROB (XA_CUT_BUFFER1); | |
2344 | FROB (XA_CUT_BUFFER2); | |
2345 | FROB (XA_CUT_BUFFER3); | |
2346 | FROB (XA_CUT_BUFFER4); | |
2347 | FROB (XA_CUT_BUFFER5); | |
2348 | FROB (XA_CUT_BUFFER6); | |
2349 | FROB (XA_CUT_BUFFER7); | |
2350 | #undef FROB | |
2351 | UNBLOCK_INPUT; | |
ede4db72 RS |
2352 | } |
2353 | ||
2354 | ||
b7826503 | 2355 | #define CHECK_CUT_BUFFER(symbol) \ |
4d30ce50 | 2356 | do { CHECK_SYMBOL ((symbol)); \ |
ede4db72 RS |
2357 | if (!EQ((symbol), QCUT_BUFFER0) && !EQ((symbol), QCUT_BUFFER1) \ |
2358 | && !EQ((symbol), QCUT_BUFFER2) && !EQ((symbol), QCUT_BUFFER3) \ | |
2359 | && !EQ((symbol), QCUT_BUFFER4) && !EQ((symbol), QCUT_BUFFER5) \ | |
2360 | && !EQ((symbol), QCUT_BUFFER6) && !EQ((symbol), QCUT_BUFFER7)) \ | |
4d30ce50 KS |
2361 | signal_error ("Doesn't name a cut buffer", (symbol)); \ |
2362 | } while (0) | |
ede4db72 | 2363 | |
a87ed99c | 2364 | DEFUN ("x-get-cut-buffer-internal", Fx_get_cut_buffer_internal, |
8c1a1077 PJ |
2365 | Sx_get_cut_buffer_internal, 1, 1, 0, |
2366 | doc: /* Returns the value of the named cut buffer (typically CUT_BUFFER0). */) | |
2367 | (buffer) | |
ede4db72 RS |
2368 | Lisp_Object buffer; |
2369 | { | |
3834c318 | 2370 | Window window; |
ede4db72 | 2371 | Atom buffer_atom; |
ede75242 | 2372 | unsigned char *data = NULL; |
ede4db72 RS |
2373 | int bytes; |
2374 | Atom type; | |
2375 | int format; | |
2376 | unsigned long size; | |
2377 | Lisp_Object ret; | |
3834c318 | 2378 | Display *display; |
5c3a351a | 2379 | struct x_display_info *dpyinfo; |
378c33ca | 2380 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2381 | |
703e0710 | 2382 | check_x (); |
428a555e KL |
2383 | |
2384 | if (! FRAME_X_P (sf)) | |
2385 | return Qnil; | |
2386 | ||
378c33ca GM |
2387 | display = FRAME_X_DISPLAY (sf); |
2388 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
3834c318 | 2389 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
b7826503 | 2390 | CHECK_CUT_BUFFER (buffer); |
5c3a351a | 2391 | buffer_atom = symbol_to_x_atom (dpyinfo, display, buffer); |
ede4db72 RS |
2392 | |
2393 | x_get_window_property (display, window, buffer_atom, &data, &bytes, | |
2394 | &type, &format, &size, 0); | |
722b3ac9 | 2395 | |
ede75242 | 2396 | if (!data || !format) |
722b3ac9 | 2397 | { |
ede75242 CY |
2398 | if (data) |
2399 | xfree (data); | |
722b3ac9 CY |
2400 | return Qnil; |
2401 | } | |
2402 | ||
ede4db72 | 2403 | if (format != 8 || type != XA_STRING) |
4d30ce50 KS |
2404 | signal_error ("Cut buffer doesn't contain 8-bit data", |
2405 | list2 (x_atom_to_symbol (display, type), | |
2406 | make_number (format))); | |
ede4db72 | 2407 | |
3f6b532c | 2408 | ret = (bytes ? make_unibyte_string ((char *) data, bytes) : Qnil); |
4feb31b2 | 2409 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 2410 | calls xmalloc itself. */ |
4feb31b2 | 2411 | xfree (data); |
ede4db72 RS |
2412 | return ret; |
2413 | } | |
2414 | ||
2415 | ||
a87ed99c | 2416 | DEFUN ("x-store-cut-buffer-internal", Fx_store_cut_buffer_internal, |
8c1a1077 PJ |
2417 | Sx_store_cut_buffer_internal, 2, 2, 0, |
2418 | doc: /* Sets the value of the named cut buffer (typically CUT_BUFFER0). */) | |
2419 | (buffer, string) | |
ede4db72 RS |
2420 | Lisp_Object buffer, string; |
2421 | { | |
3834c318 | 2422 | Window window; |
ede4db72 RS |
2423 | Atom buffer_atom; |
2424 | unsigned char *data; | |
2425 | int bytes; | |
2426 | int bytes_remaining; | |
3834c318 RS |
2427 | int max_bytes; |
2428 | Display *display; | |
378c33ca | 2429 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2430 | |
703e0710 | 2431 | check_x (); |
428a555e KL |
2432 | |
2433 | if (! FRAME_X_P (sf)) | |
2434 | return Qnil; | |
2435 | ||
378c33ca | 2436 | display = FRAME_X_DISPLAY (sf); |
3834c318 RS |
2437 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
2438 | ||
2439 | max_bytes = SELECTION_QUANTUM (display); | |
2440 | if (max_bytes > MAX_SELECTION_QUANTUM) | |
2441 | max_bytes = MAX_SELECTION_QUANTUM; | |
2442 | ||
b7826503 PJ |
2443 | CHECK_CUT_BUFFER (buffer); |
2444 | CHECK_STRING (string); | |
378c33ca | 2445 | buffer_atom = symbol_to_x_atom (FRAME_X_DISPLAY_INFO (sf), |
5c3a351a | 2446 | display, buffer); |
d5db4077 KR |
2447 | data = (unsigned char *) SDATA (string); |
2448 | bytes = SBYTES (string); | |
ede4db72 RS |
2449 | bytes_remaining = bytes; |
2450 | ||
378c33ca | 2451 | if (! FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized) |
04649dbc KH |
2452 | { |
2453 | initialize_cut_buffers (display, window); | |
378c33ca | 2454 | FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized = 1; |
04649dbc | 2455 | } |
ede4db72 RS |
2456 | |
2457 | BLOCK_INPUT; | |
10608c8c RS |
2458 | |
2459 | /* Don't mess up with an empty value. */ | |
2460 | if (!bytes_remaining) | |
2461 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
2462 | PropModeReplace, data, 0); | |
2463 | ||
ede4db72 RS |
2464 | while (bytes_remaining) |
2465 | { | |
2466 | int chunk = (bytes_remaining < max_bytes | |
2467 | ? bytes_remaining : max_bytes); | |
2468 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
2469 | (bytes_remaining == bytes | |
2470 | ? PropModeReplace | |
2471 | : PropModeAppend), | |
2472 | data, chunk); | |
2473 | data += chunk; | |
2474 | bytes_remaining -= chunk; | |
2475 | } | |
2476 | UNBLOCK_INPUT; | |
2477 | return string; | |
2478 | } | |
2479 | ||
2480 | ||
a87ed99c | 2481 | DEFUN ("x-rotate-cut-buffers-internal", Fx_rotate_cut_buffers_internal, |
8c1a1077 | 2482 | Sx_rotate_cut_buffers_internal, 1, 1, 0, |
d41e3a6c CY |
2483 | doc: /* Rotate the values of the cut buffers by N steps. |
2484 | Positive N means shift the values forward, negative means backward. */) | |
8c1a1077 | 2485 | (n) |
ede4db72 RS |
2486 | Lisp_Object n; |
2487 | { | |
3834c318 RS |
2488 | Window window; |
2489 | Atom props[8]; | |
2490 | Display *display; | |
378c33ca | 2491 | struct frame *sf = SELECTED_FRAME (); |
428a555e | 2492 | |
703e0710 | 2493 | check_x (); |
428a555e KL |
2494 | |
2495 | if (! FRAME_X_P (sf)) | |
2496 | return Qnil; | |
2497 | ||
378c33ca | 2498 | display = FRAME_X_DISPLAY (sf); |
3834c318 | 2499 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
b7826503 | 2500 | CHECK_NUMBER (n); |
3834c318 RS |
2501 | if (XINT (n) == 0) |
2502 | return n; | |
378c33ca | 2503 | if (! FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized) |
04649dbc KH |
2504 | { |
2505 | initialize_cut_buffers (display, window); | |
378c33ca | 2506 | FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized = 1; |
04649dbc | 2507 | } |
3834c318 | 2508 | |
ede4db72 RS |
2509 | props[0] = XA_CUT_BUFFER0; |
2510 | props[1] = XA_CUT_BUFFER1; | |
2511 | props[2] = XA_CUT_BUFFER2; | |
2512 | props[3] = XA_CUT_BUFFER3; | |
2513 | props[4] = XA_CUT_BUFFER4; | |
2514 | props[5] = XA_CUT_BUFFER5; | |
2515 | props[6] = XA_CUT_BUFFER6; | |
2516 | props[7] = XA_CUT_BUFFER7; | |
2517 | BLOCK_INPUT; | |
2518 | XRotateWindowProperties (display, window, props, 8, XINT (n)); | |
2519 | UNBLOCK_INPUT; | |
2520 | return n; | |
2521 | } | |
2522 | ||
2523 | #endif | |
2524 | \f | |
1fb3821b JD |
2525 | /*********************************************************************** |
2526 | Drag and drop support | |
2527 | ***********************************************************************/ | |
2528 | /* Check that lisp values are of correct type for x_fill_property_data. | |
2529 | That is, number, string or a cons with two numbers (low and high 16 | |
2530 | bit parts of a 32 bit number). */ | |
2531 | ||
2532 | int | |
2533 | x_check_property_data (data) | |
2534 | Lisp_Object data; | |
2535 | { | |
2536 | Lisp_Object iter; | |
2537 | int size = 0; | |
2538 | ||
2539 | for (iter = data; CONSP (iter) && size != -1; iter = XCDR (iter), ++size) | |
2540 | { | |
2541 | Lisp_Object o = XCAR (iter); | |
2542 | ||
2543 | if (! NUMBERP (o) && ! STRINGP (o) && ! CONSP (o)) | |
2544 | size = -1; | |
2545 | else if (CONSP (o) && | |
2546 | (! NUMBERP (XCAR (o)) || ! NUMBERP (XCDR (o)))) | |
2547 | size = -1; | |
2548 | } | |
2549 | ||
2550 | return size; | |
2551 | } | |
2552 | ||
2553 | /* Convert lisp values to a C array. Values may be a number, a string | |
2554 | which is taken as an X atom name and converted to the atom value, or | |
2555 | a cons containing the two 16 bit parts of a 32 bit number. | |
2556 | ||
2557 | DPY is the display use to look up X atoms. | |
2558 | DATA is a Lisp list of values to be converted. | |
2559 | RET is the C array that contains the converted values. It is assumed | |
ff59904a | 2560 | it is big enough to hold all values. |
e22cf39c JD |
2561 | FORMAT is 8, 16 or 32 and denotes char/short/long for each C value to |
2562 | be stored in RET. Note that long is used for 32 even if long is more | |
2563 | than 32 bits (see man pages for XChangeProperty, XGetWindowProperty and | |
2564 | XClientMessageEvent). */ | |
1fb3821b JD |
2565 | |
2566 | void | |
2567 | x_fill_property_data (dpy, data, ret, format) | |
2568 | Display *dpy; | |
2569 | Lisp_Object data; | |
2570 | void *ret; | |
2571 | int format; | |
2572 | { | |
e22cf39c JD |
2573 | long val; |
2574 | long *d32 = (long *) ret; | |
2575 | short *d16 = (short *) ret; | |
2576 | char *d08 = (char *) ret; | |
1fb3821b JD |
2577 | Lisp_Object iter; |
2578 | ||
2579 | for (iter = data; CONSP (iter); iter = XCDR (iter)) | |
2580 | { | |
2581 | Lisp_Object o = XCAR (iter); | |
2582 | ||
2583 | if (INTEGERP (o)) | |
e22cf39c | 2584 | val = (long) XFASTINT (o); |
1fb3821b | 2585 | else if (FLOATP (o)) |
e22cf39c | 2586 | val = (long) XFLOAT_DATA (o); |
1fb3821b | 2587 | else if (CONSP (o)) |
e22cf39c | 2588 | val = (long) cons_to_long (o); |
1fb3821b JD |
2589 | else if (STRINGP (o)) |
2590 | { | |
2591 | BLOCK_INPUT; | |
e22cf39c | 2592 | val = (long) XInternAtom (dpy, (char *) SDATA (o), False); |
1fb3821b JD |
2593 | UNBLOCK_INPUT; |
2594 | } | |
2595 | else | |
2596 | error ("Wrong type, must be string, number or cons"); | |
2597 | ||
2598 | if (format == 8) | |
e22cf39c | 2599 | *d08++ = (char) val; |
1fb3821b | 2600 | else if (format == 16) |
e22cf39c | 2601 | *d16++ = (short) val; |
1fb3821b JD |
2602 | else |
2603 | *d32++ = val; | |
2604 | } | |
2605 | } | |
2606 | ||
2607 | /* Convert an array of C values to a Lisp list. | |
2608 | F is the frame to be used to look up X atoms if the TYPE is XA_ATOM. | |
2609 | DATA is a C array of values to be converted. | |
2610 | TYPE is the type of the data. Only XA_ATOM is special, it converts | |
2611 | each number in DATA to its corresponfing X atom as a symbol. | |
2612 | FORMAT is 8, 16 or 32 and gives the size in bits for each C value to | |
2613 | be stored in RET. | |
2614 | SIZE is the number of elements in DATA. | |
2615 | ||
b8d6f4af JD |
2616 | Important: When format is 32, data should contain an array of int, |
2617 | not an array of long as the X library returns. This makes a difference | |
2618 | when sizeof(long) != sizeof(int). | |
2619 | ||
1fb3821b JD |
2620 | Also see comment for selection_data_to_lisp_data above. */ |
2621 | ||
2622 | Lisp_Object | |
2623 | x_property_data_to_lisp (f, data, type, format, size) | |
2624 | struct frame *f; | |
2625 | unsigned char *data; | |
2626 | Atom type; | |
2627 | int format; | |
2628 | unsigned long size; | |
2629 | { | |
2630 | return selection_data_to_lisp_data (FRAME_X_DISPLAY (f), | |
2631 | data, size*format/8, type, format); | |
2632 | } | |
2633 | ||
31f16913 | 2634 | /* Get the mouse position in frame relative coordinates. */ |
1fb3821b JD |
2635 | |
2636 | static void | |
2637 | mouse_position_for_drop (f, x, y) | |
2638 | FRAME_PTR f; | |
2639 | int *x; | |
2640 | int *y; | |
2641 | { | |
2642 | Window root, dummy_window; | |
2643 | int dummy; | |
2644 | ||
2645 | BLOCK_INPUT; | |
2646 | ||
2647 | XQueryPointer (FRAME_X_DISPLAY (f), | |
2648 | DefaultRootWindow (FRAME_X_DISPLAY (f)), | |
2649 | ||
2650 | /* The root window which contains the pointer. */ | |
2651 | &root, | |
2652 | ||
2653 | /* Window pointer is on, not used */ | |
2654 | &dummy_window, | |
2655 | ||
2656 | /* The position on that root window. */ | |
2657 | x, y, | |
2658 | ||
2659 | /* x/y in dummy_window coordinates, not used. */ | |
2660 | &dummy, &dummy, | |
2661 | ||
2662 | /* Modifier keys and pointer buttons, about which | |
2663 | we don't care. */ | |
2664 | (unsigned int *) &dummy); | |
2665 | ||
2666 | ||
2667 | /* Absolute to relative. */ | |
2668 | *x -= f->left_pos + FRAME_OUTER_TO_INNER_DIFF_X (f); | |
2669 | *y -= f->top_pos + FRAME_OUTER_TO_INNER_DIFF_Y (f); | |
2670 | ||
2671 | UNBLOCK_INPUT; | |
2672 | } | |
2673 | ||
2674 | DEFUN ("x-get-atom-name", Fx_get_atom_name, | |
2675 | Sx_get_atom_name, 1, 2, 0, | |
2676 | doc: /* Return the X atom name for VALUE as a string. | |
2677 | VALUE may be a number or a cons where the car is the upper 16 bits and | |
2678 | the cdr is the lower 16 bits of a 32 bit value. | |
2679 | Use the display for FRAME or the current frame if FRAME is not given or nil. | |
2680 | ||
2681 | If the value is 0 or the atom is not known, return the empty string. */) | |
2682 | (value, frame) | |
2683 | Lisp_Object value, frame; | |
2684 | { | |
2685 | struct frame *f = check_x_frame (frame); | |
2686 | char *name = 0; | |
2687 | Lisp_Object ret = Qnil; | |
1fb3821b JD |
2688 | Display *dpy = FRAME_X_DISPLAY (f); |
2689 | Atom atom; | |
c525d842 | 2690 | int had_errors; |
1fb3821b JD |
2691 | |
2692 | if (INTEGERP (value)) | |
2693 | atom = (Atom) XUINT (value); | |
2694 | else if (FLOATP (value)) | |
ff59904a | 2695 | atom = (Atom) XFLOAT_DATA (value); |
1fb3821b JD |
2696 | else if (CONSP (value)) |
2697 | atom = (Atom) cons_to_long (value); | |
2698 | else | |
2699 | error ("Wrong type, value must be number or cons"); | |
2700 | ||
2701 | BLOCK_INPUT; | |
9ba8e10d | 2702 | x_catch_errors (dpy); |
1fb3821b | 2703 | name = atom ? XGetAtomName (dpy, atom) : ""; |
c525d842 CY |
2704 | had_errors = x_had_errors_p (dpy); |
2705 | x_uncatch_errors (); | |
1fb3821b | 2706 | |
c525d842 | 2707 | if (!had_errors) |
1fb3821b JD |
2708 | ret = make_string (name, strlen (name)); |
2709 | ||
1fb3821b | 2710 | if (atom && name) XFree (name); |
8b3ad112 | 2711 | if (NILP (ret)) ret = empty_unibyte_string; |
1fb3821b JD |
2712 | |
2713 | UNBLOCK_INPUT; | |
2714 | ||
2715 | return ret; | |
2716 | } | |
2717 | ||
9fc68699 JD |
2718 | DEFUN ("x-register-dnd-atom", Fx_register_dnd_atom, |
2719 | Sx_register_dnd_atom, 1, 2, 0, | |
2720 | doc: /* Request that dnd events are made for ClientMessages with ATOM. | |
2721 | ATOM can be a symbol or a string. The ATOM is interned on the display that | |
2722 | FRAME is on. If FRAME is nil, the selected frame is used. */) | |
2723 | (atom, frame) | |
2724 | Lisp_Object atom, frame; | |
2725 | { | |
2726 | Atom x_atom; | |
2727 | struct frame *f = check_x_frame (frame); | |
2728 | size_t i; | |
2729 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); | |
2730 | ||
2731 | ||
2732 | if (SYMBOLP (atom)) | |
2733 | x_atom = symbol_to_x_atom (dpyinfo, FRAME_X_DISPLAY (f), atom); | |
2734 | else if (STRINGP (atom)) | |
2735 | { | |
2736 | BLOCK_INPUT; | |
2737 | x_atom = XInternAtom (FRAME_X_DISPLAY (f), (char *) SDATA (atom), False); | |
2738 | UNBLOCK_INPUT; | |
2739 | } | |
2740 | else | |
2741 | error ("ATOM must be a symbol or a string"); | |
2742 | ||
db9cd97a | 2743 | for (i = 0; i < dpyinfo->x_dnd_atoms_length; ++i) |
9fc68699 JD |
2744 | if (dpyinfo->x_dnd_atoms[i] == x_atom) |
2745 | return Qnil; | |
2746 | ||
db9cd97a | 2747 | if (dpyinfo->x_dnd_atoms_length == dpyinfo->x_dnd_atoms_size) |
9fc68699 JD |
2748 | { |
2749 | dpyinfo->x_dnd_atoms_size *= 2; | |
2750 | dpyinfo->x_dnd_atoms = xrealloc (dpyinfo->x_dnd_atoms, | |
2751 | sizeof (*dpyinfo->x_dnd_atoms) | |
2752 | * dpyinfo->x_dnd_atoms_size); | |
2753 | } | |
2754 | ||
2755 | dpyinfo->x_dnd_atoms[dpyinfo->x_dnd_atoms_length++] = x_atom; | |
2756 | return Qnil; | |
2757 | } | |
2758 | ||
2759 | /* Convert an XClientMessageEvent to a Lisp event of type DRAG_N_DROP_EVENT. */ | |
1fb3821b JD |
2760 | |
2761 | int | |
2762 | x_handle_dnd_message (f, event, dpyinfo, bufp) | |
2763 | struct frame *f; | |
2764 | XClientMessageEvent *event; | |
2765 | struct x_display_info *dpyinfo; | |
2766 | struct input_event *bufp; | |
2767 | { | |
2768 | Lisp_Object vec; | |
2769 | Lisp_Object frame; | |
e22cf39c JD |
2770 | /* format 32 => size 5, format 16 => size 10, format 8 => size 20 */ |
2771 | unsigned long size = 160/event->format; | |
1fb3821b | 2772 | int x, y; |
31f16913 JD |
2773 | unsigned char *data = (unsigned char *) event->data.b; |
2774 | int idata[5]; | |
9fc68699 JD |
2775 | size_t i; |
2776 | ||
db9cd97a | 2777 | for (i = 0; i < dpyinfo->x_dnd_atoms_length; ++i) |
9fc68699 JD |
2778 | if (dpyinfo->x_dnd_atoms[i] == event->message_type) break; |
2779 | ||
2780 | if (i == dpyinfo->x_dnd_atoms_length) return 0; | |
1fb3821b JD |
2781 | |
2782 | XSETFRAME (frame, f); | |
2783 | ||
31f16913 JD |
2784 | /* On a 64 bit machine, the event->data.l array members are 64 bits (long), |
2785 | but the x_property_data_to_lisp (or rather selection_data_to_lisp_data) | |
2786 | function expects them to be of size int (i.e. 32). So to be able to | |
2787 | use that function, put the data in the form it expects if format is 32. */ | |
2788 | ||
2789 | if (event->format == 32 && event->format < BITS_PER_LONG) | |
2790 | { | |
2791 | int i; | |
2792 | for (i = 0; i < 5; ++i) /* There are only 5 longs in a ClientMessage. */ | |
2793 | idata[i] = (int) event->data.l[i]; | |
2794 | data = (unsigned char *) idata; | |
2795 | } | |
2796 | ||
d2f14999 | 2797 | vec = Fmake_vector (make_number (4), Qnil); |
3ae565b3 SM |
2798 | ASET (vec, 0, SYMBOL_NAME (x_atom_to_symbol (FRAME_X_DISPLAY (f), |
2799 | event->message_type))); | |
2800 | ASET (vec, 1, frame); | |
2801 | ASET (vec, 2, make_number (event->format)); | |
2802 | ASET (vec, 3, x_property_data_to_lisp (f, | |
2803 | data, | |
2804 | event->message_type, | |
2805 | event->format, | |
2806 | size)); | |
1fb3821b JD |
2807 | |
2808 | mouse_position_for_drop (f, &x, &y); | |
2809 | bufp->kind = DRAG_N_DROP_EVENT; | |
862c94ca | 2810 | bufp->frame_or_window = frame; |
1fb3821b JD |
2811 | bufp->timestamp = CurrentTime; |
2812 | bufp->x = make_number (x); | |
2813 | bufp->y = make_number (y); | |
862c94ca | 2814 | bufp->arg = vec; |
1fb3821b JD |
2815 | bufp->modifiers = 0; |
2816 | ||
2817 | return 1; | |
2818 | } | |
2819 | ||
2820 | DEFUN ("x-send-client-message", Fx_send_client_event, | |
2821 | Sx_send_client_message, 6, 6, 0, | |
2822 | doc: /* Send a client message of MESSAGE-TYPE to window DEST on DISPLAY. | |
2823 | ||
2824 | For DISPLAY, specify either a frame or a display name (a string). | |
2825 | If DISPLAY is nil, that stands for the selected frame's display. | |
2826 | DEST may be a number, in which case it is a Window id. The value 0 may | |
2827 | be used to send to the root window of the DISPLAY. | |
2828 | If DEST is a cons, it is converted to a 32 bit number | |
2829 | with the high 16 bits from the car and the lower 16 bit from the cdr. That | |
2830 | number is then used as a window id. | |
2831 | If DEST is a frame the event is sent to the outer window of that frame. | |
69785ad0 | 2832 | A value of nil means the currently selected frame. |
1fb3821b JD |
2833 | If DEST is the string "PointerWindow" the event is sent to the window that |
2834 | contains the pointer. If DEST is the string "InputFocus" the event is | |
2835 | sent to the window that has the input focus. | |
2836 | FROM is the frame sending the event. Use nil for currently selected frame. | |
2837 | MESSAGE-TYPE is the name of an Atom as a string. | |
2838 | FORMAT must be one of 8, 16 or 32 and determines the size of the values in | |
2839 | bits. VALUES is a list of numbers, cons and/or strings containing the values | |
2840 | to send. If a value is a string, it is converted to an Atom and the value of | |
2841 | the Atom is sent. If a value is a cons, it is converted to a 32 bit number | |
2842 | with the high 16 bits from the car and the lower 16 bit from the cdr. | |
2843 | If more values than fits into the event is given, the excessive values | |
2844 | are ignored. */) | |
2845 | (display, dest, from, message_type, format, values) | |
2846 | Lisp_Object display, dest, from, message_type, format, values; | |
2847 | { | |
2848 | struct x_display_info *dpyinfo = check_x_display_info (display); | |
2849 | Window wdest; | |
2850 | XEvent event; | |
2851 | Lisp_Object cons; | |
2852 | int size; | |
2853 | struct frame *f = check_x_frame (from); | |
1fb3821b JD |
2854 | int to_root; |
2855 | ||
2856 | CHECK_STRING (message_type); | |
2857 | CHECK_NUMBER (format); | |
2858 | CHECK_CONS (values); | |
2859 | ||
2860 | if (x_check_property_data (values) == -1) | |
2861 | error ("Bad data in VALUES, must be number, cons or string"); | |
2862 | ||
2863 | event.xclient.type = ClientMessage; | |
2864 | event.xclient.format = XFASTINT (format); | |
2865 | ||
2866 | if (event.xclient.format != 8 && event.xclient.format != 16 | |
2867 | && event.xclient.format != 32) | |
2868 | error ("FORMAT must be one of 8, 16 or 32"); | |
a0ecb2ac | 2869 | |
1fb3821b JD |
2870 | if (FRAMEP (dest) || NILP (dest)) |
2871 | { | |
2872 | struct frame *fdest = check_x_frame (dest); | |
2873 | wdest = FRAME_OUTER_WINDOW (fdest); | |
2874 | } | |
2875 | else if (STRINGP (dest)) | |
2876 | { | |
2877 | if (strcmp (SDATA (dest), "PointerWindow") == 0) | |
2878 | wdest = PointerWindow; | |
2879 | else if (strcmp (SDATA (dest), "InputFocus") == 0) | |
2880 | wdest = InputFocus; | |
2881 | else | |
2882 | error ("DEST as a string must be one of PointerWindow or InputFocus"); | |
2883 | } | |
2884 | else if (INTEGERP (dest)) | |
2885 | wdest = (Window) XFASTINT (dest); | |
2886 | else if (FLOATP (dest)) | |
ff59904a | 2887 | wdest = (Window) XFLOAT_DATA (dest); |
1fb3821b JD |
2888 | else if (CONSP (dest)) |
2889 | { | |
2890 | if (! NUMBERP (XCAR (dest)) || ! NUMBERP (XCDR (dest))) | |
2891 | error ("Both car and cdr for DEST must be numbers"); | |
2892 | else | |
2893 | wdest = (Window) cons_to_long (dest); | |
2894 | } | |
2895 | else | |
2896 | error ("DEST must be a frame, nil, string, number or cons"); | |
2897 | ||
2898 | if (wdest == 0) wdest = dpyinfo->root_window; | |
2899 | to_root = wdest == dpyinfo->root_window; | |
2900 | ||
2901 | for (cons = values, size = 0; CONSP (cons); cons = XCDR (cons), ++size) | |
2902 | ; | |
2903 | ||
2904 | BLOCK_INPUT; | |
2905 | ||
2906 | event.xclient.message_type | |
2907 | = XInternAtom (dpyinfo->display, SDATA (message_type), False); | |
2908 | event.xclient.display = dpyinfo->display; | |
2909 | ||
2910 | /* Some clients (metacity for example) expects sending window to be here | |
2911 | when sending to the root window. */ | |
2912 | event.xclient.window = to_root ? FRAME_OUTER_WINDOW (f) : wdest; | |
2913 | ||
6e816df5 | 2914 | |
1fb3821b JD |
2915 | memset (event.xclient.data.b, 0, sizeof (event.xclient.data.b)); |
2916 | x_fill_property_data (dpyinfo->display, values, event.xclient.data.b, | |
2917 | event.xclient.format); | |
2918 | ||
2919 | /* If event mask is 0 the event is sent to the client that created | |
2920 | the destination window. But if we are sending to the root window, | |
2921 | there is no such client. Then we set the event mask to 0xffff. The | |
2922 | event then goes to clients selecting for events on the root window. */ | |
9ba8e10d | 2923 | x_catch_errors (dpyinfo->display); |
1fb3821b JD |
2924 | { |
2925 | int propagate = to_root ? False : True; | |
2926 | unsigned mask = to_root ? 0xffff : 0; | |
2927 | XSendEvent (dpyinfo->display, wdest, propagate, mask, &event); | |
2928 | XFlush (dpyinfo->display); | |
2929 | } | |
4545fa20 | 2930 | x_uncatch_errors (); |
1fb3821b JD |
2931 | UNBLOCK_INPUT; |
2932 | ||
2933 | return Qnil; | |
2934 | } | |
2935 | ||
2936 | \f | |
ede4db72 RS |
2937 | void |
2938 | syms_of_xselect () | |
2939 | { | |
ede4db72 RS |
2940 | defsubr (&Sx_get_selection_internal); |
2941 | defsubr (&Sx_own_selection_internal); | |
2942 | defsubr (&Sx_disown_selection_internal); | |
2943 | defsubr (&Sx_selection_owner_p); | |
2944 | defsubr (&Sx_selection_exists_p); | |
2945 | ||
2946 | #ifdef CUT_BUFFER_SUPPORT | |
a87ed99c RS |
2947 | defsubr (&Sx_get_cut_buffer_internal); |
2948 | defsubr (&Sx_store_cut_buffer_internal); | |
2949 | defsubr (&Sx_rotate_cut_buffers_internal); | |
ede4db72 RS |
2950 | #endif |
2951 | ||
1fb3821b JD |
2952 | defsubr (&Sx_get_atom_name); |
2953 | defsubr (&Sx_send_client_message); | |
9fc68699 | 2954 | defsubr (&Sx_register_dnd_atom); |
1fb3821b | 2955 | |
ede4db72 RS |
2956 | reading_selection_reply = Fcons (Qnil, Qnil); |
2957 | staticpro (&reading_selection_reply); | |
2958 | reading_selection_window = 0; | |
2959 | reading_which_selection = 0; | |
2960 | ||
2961 | property_change_wait_list = 0; | |
2f65feb6 | 2962 | prop_location_identifier = 0; |
ede4db72 RS |
2963 | property_change_reply = Fcons (Qnil, Qnil); |
2964 | staticpro (&property_change_reply); | |
2965 | ||
2966 | Vselection_alist = Qnil; | |
2967 | staticpro (&Vselection_alist); | |
2968 | ||
2969 | DEFVAR_LISP ("selection-converter-alist", &Vselection_converter_alist, | |
8c1a1077 PJ |
2970 | doc: /* An alist associating X Windows selection-types with functions. |
2971 | These functions are called to convert the selection, with three args: | |
2972 | the name of the selection (typically `PRIMARY', `SECONDARY', or `CLIPBOARD'); | |
2973 | a desired type to which the selection should be converted; | |
2974 | and the local selection value (whatever was given to `x-own-selection'). | |
2975 | ||
2976 | The function should return the value to send to the X server | |
2977 | \(typically a string). A return value of nil | |
2978 | means that the conversion could not be done. | |
2979 | A return value which is the symbol `NULL' | |
2980 | means that a side-effect was executed, | |
2981 | and there is no meaningful selection value. */); | |
ede4db72 RS |
2982 | Vselection_converter_alist = Qnil; |
2983 | ||
c917a8de | 2984 | DEFVAR_LISP ("x-lost-selection-functions", &Vx_lost_selection_functions, |
8c1a1077 PJ |
2985 | doc: /* A list of functions to be called when Emacs loses an X selection. |
2986 | \(This happens when some other X client makes its own selection | |
2987 | or when a Lisp program explicitly clears the selection.) | |
2988 | The functions are called with one argument, the selection type | |
2989 | \(a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'). */); | |
c917a8de | 2990 | Vx_lost_selection_functions = Qnil; |
ede4db72 | 2991 | |
c917a8de | 2992 | DEFVAR_LISP ("x-sent-selection-functions", &Vx_sent_selection_functions, |
8c1a1077 PJ |
2993 | doc: /* A list of functions to be called when Emacs answers a selection request. |
2994 | The functions are called with four arguments: | |
2995 | - the selection name (typically `PRIMARY', `SECONDARY', or `CLIPBOARD'); | |
2996 | - the selection-type which Emacs was asked to convert the | |
2997 | selection into before sending (for example, `STRING' or `LENGTH'); | |
2998 | - a flag indicating success or failure for responding to the request. | |
2999 | We might have failed (and declined the request) for any number of reasons, | |
3000 | including being asked for a selection that we no longer own, or being asked | |
3001 | to convert into a type that we don't know about or that is inappropriate. | |
3002 | This hook doesn't let you change the behavior of Emacs's selection replies, | |
3003 | it merely informs you that they have happened. */); | |
c917a8de | 3004 | Vx_sent_selection_functions = Qnil; |
ede4db72 RS |
3005 | |
3006 | DEFVAR_INT ("x-selection-timeout", &x_selection_timeout, | |
8c1a1077 PJ |
3007 | doc: /* Number of milliseconds to wait for a selection reply. |
3008 | If the selection owner doesn't reply in this time, we give up. | |
3009 | A value of 0 means wait as long as necessary. This is initialized from the | |
3010 | \"*selectionTimeout\" resource. */); | |
ede4db72 RS |
3011 | x_selection_timeout = 0; |
3012 | ||
3013 | QPRIMARY = intern ("PRIMARY"); staticpro (&QPRIMARY); | |
3014 | QSECONDARY = intern ("SECONDARY"); staticpro (&QSECONDARY); | |
3015 | QSTRING = intern ("STRING"); staticpro (&QSTRING); | |
3016 | QINTEGER = intern ("INTEGER"); staticpro (&QINTEGER); | |
3017 | QCLIPBOARD = intern ("CLIPBOARD"); staticpro (&QCLIPBOARD); | |
3018 | QTIMESTAMP = intern ("TIMESTAMP"); staticpro (&QTIMESTAMP); | |
3019 | QTEXT = intern ("TEXT"); staticpro (&QTEXT); | |
e6c7c988 | 3020 | QCOMPOUND_TEXT = intern ("COMPOUND_TEXT"); staticpro (&QCOMPOUND_TEXT); |
5109c8dd | 3021 | QUTF8_STRING = intern ("UTF8_STRING"); staticpro (&QUTF8_STRING); |
ede4db72 RS |
3022 | QDELETE = intern ("DELETE"); staticpro (&QDELETE); |
3023 | QMULTIPLE = intern ("MULTIPLE"); staticpro (&QMULTIPLE); | |
3024 | QINCR = intern ("INCR"); staticpro (&QINCR); | |
3025 | QEMACS_TMP = intern ("_EMACS_TMP_"); staticpro (&QEMACS_TMP); | |
3026 | QTARGETS = intern ("TARGETS"); staticpro (&QTARGETS); | |
3027 | QATOM = intern ("ATOM"); staticpro (&QATOM); | |
3028 | QATOM_PAIR = intern ("ATOM_PAIR"); staticpro (&QATOM_PAIR); | |
3029 | QNULL = intern ("NULL"); staticpro (&QNULL); | |
5a79ea57 EZ |
3030 | Qcompound_text_with_extensions = intern ("compound-text-with-extensions"); |
3031 | staticpro (&Qcompound_text_with_extensions); | |
ede4db72 RS |
3032 | |
3033 | #ifdef CUT_BUFFER_SUPPORT | |
3034 | QCUT_BUFFER0 = intern ("CUT_BUFFER0"); staticpro (&QCUT_BUFFER0); | |
3035 | QCUT_BUFFER1 = intern ("CUT_BUFFER1"); staticpro (&QCUT_BUFFER1); | |
3036 | QCUT_BUFFER2 = intern ("CUT_BUFFER2"); staticpro (&QCUT_BUFFER2); | |
3037 | QCUT_BUFFER3 = intern ("CUT_BUFFER3"); staticpro (&QCUT_BUFFER3); | |
3038 | QCUT_BUFFER4 = intern ("CUT_BUFFER4"); staticpro (&QCUT_BUFFER4); | |
3039 | QCUT_BUFFER5 = intern ("CUT_BUFFER5"); staticpro (&QCUT_BUFFER5); | |
3040 | QCUT_BUFFER6 = intern ("CUT_BUFFER6"); staticpro (&QCUT_BUFFER6); | |
3041 | QCUT_BUFFER7 = intern ("CUT_BUFFER7"); staticpro (&QCUT_BUFFER7); | |
3042 | #endif | |
3043 | ||
e57ad4d8 KH |
3044 | Qforeign_selection = intern ("foreign-selection"); |
3045 | staticpro (&Qforeign_selection); | |
ede4db72 | 3046 | } |
ab5796a9 MB |
3047 | |
3048 | /* arch-tag: 7c293b0f-9918-4f69-8ac7-03e142307236 | |
3049 | (do not change this comment) */ |