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, |
4e6835db | 3 | 2004, 2005, 2006, 2007 Free Software Foundation, Inc. |
ede4db72 RS |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
684d6f5b | 9 | the Free Software Foundation; either version 3, or (at your option) |
ede4db72 RS |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
4fc5845f LK |
19 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 | Boston, MA 02110-1301, USA. */ | |
ede4db72 | 21 | |
c6c5df7f | 22 | |
ede4db72 RS |
23 | /* Rewritten by jwz */ |
24 | ||
18160b98 | 25 | #include <config.h> |
5b698285 | 26 | #include <stdio.h> /* termhooks.h needs this */ |
678b3958 KS |
27 | |
28 | #ifdef HAVE_SYS_TYPES_H | |
29 | #include <sys/types.h> | |
30 | #endif | |
31 | #ifdef HAVE_UNISTD_H | |
32 | #include <unistd.h> | |
33 | #endif | |
34 | ||
ede4db72 RS |
35 | #include "lisp.h" |
36 | #include "xterm.h" /* for all of the X includes */ | |
7da64e5c RS |
37 | #include "dispextern.h" /* frame.h seems to want this */ |
38 | #include "frame.h" /* Need this to get the X window of selected_frame */ | |
9ac0d9e0 | 39 | #include "blockinput.h" |
5faa9b45 | 40 | #include "buffer.h" |
dfcf069d | 41 | #include "process.h" |
1fb3821b | 42 | #include "termhooks.h" |
dd0fe424 | 43 | #include "keyboard.h" |
1fb3821b JD |
44 | |
45 | #include <X11/Xproto.h> | |
7da64e5c | 46 | |
d9c0d4a3 GM |
47 | struct prop_location; |
48 | ||
49 | static Lisp_Object x_atom_to_symbol P_ ((Display *dpy, Atom atom)); | |
50 | static Atom symbol_to_x_atom P_ ((struct x_display_info *, Display *, | |
51 | Lisp_Object)); | |
52 | static void x_own_selection P_ ((Lisp_Object, Lisp_Object)); | |
5109c8dd | 53 | static Lisp_Object x_get_local_selection P_ ((Lisp_Object, Lisp_Object, int)); |
d9c0d4a3 GM |
54 | static void x_decline_selection_request P_ ((struct input_event *)); |
55 | static Lisp_Object x_selection_request_lisp_error P_ ((Lisp_Object)); | |
56 | static Lisp_Object queue_selection_requests_unwind P_ ((Lisp_Object)); | |
57 | static Lisp_Object some_frame_on_display P_ ((struct x_display_info *)); | |
c525d842 | 58 | static Lisp_Object x_catch_errors_unwind P_ ((Lisp_Object)); |
d9c0d4a3 GM |
59 | static void x_reply_selection_request P_ ((struct input_event *, int, |
60 | unsigned char *, int, Atom)); | |
61 | static int waiting_for_other_props_on_window P_ ((Display *, Window)); | |
62 | static struct prop_location *expect_property_change P_ ((Display *, Window, | |
63 | Atom, int)); | |
64 | static void unexpect_property_change P_ ((struct prop_location *)); | |
65 | static Lisp_Object wait_for_property_change_unwind P_ ((Lisp_Object)); | |
66 | static void wait_for_property_change P_ ((struct prop_location *)); | |
3a42401d JD |
67 | static Lisp_Object x_get_foreign_selection P_ ((Lisp_Object, |
68 | Lisp_Object, | |
69 | Lisp_Object)); | |
d9c0d4a3 GM |
70 | static void x_get_window_property P_ ((Display *, Window, Atom, |
71 | unsigned char **, int *, | |
72 | Atom *, int *, unsigned long *, int)); | |
73 | static void receive_incremental_selection P_ ((Display *, Window, Atom, | |
74 | Lisp_Object, unsigned, | |
75 | unsigned char **, int *, | |
76 | Atom *, int *, unsigned long *)); | |
77 | static Lisp_Object x_get_window_property_as_lisp_data P_ ((Display *, | |
78 | Window, Atom, | |
79 | Lisp_Object, Atom)); | |
80 | static Lisp_Object selection_data_to_lisp_data P_ ((Display *, unsigned char *, | |
81 | int, Atom, int)); | |
82 | static void lisp_data_to_selection_data P_ ((Display *, Lisp_Object, | |
83 | unsigned char **, Atom *, | |
84 | unsigned *, int *, int *)); | |
85 | static Lisp_Object clean_local_selection_data P_ ((Lisp_Object)); | |
86 | static void initialize_cut_buffers P_ ((Display *, Window)); | |
87 | ||
88 | ||
89 | /* Printing traces to stderr. */ | |
90 | ||
91 | #ifdef TRACE_SELECTION | |
92 | #define TRACE0(fmt) \ | |
93 | fprintf (stderr, "%d: " fmt "\n", getpid ()) | |
94 | #define TRACE1(fmt, a0) \ | |
95 | fprintf (stderr, "%d: " fmt "\n", getpid (), a0) | |
96 | #define TRACE2(fmt, a0, a1) \ | |
97 | fprintf (stderr, "%d: " fmt "\n", getpid (), a0, a1) | |
9c3ad9e1 JD |
98 | #define TRACE3(fmt, a0, a1, a2) \ |
99 | fprintf (stderr, "%d: " fmt "\n", getpid (), a0, a1, a2) | |
d9c0d4a3 GM |
100 | #else |
101 | #define TRACE0(fmt) (void) 0 | |
102 | #define TRACE1(fmt, a0) (void) 0 | |
103 | #define TRACE2(fmt, a0, a1) (void) 0 | |
9c3ad9e1 | 104 | #define TRACE3(fmt, a0, a1) (void) 0 |
d9c0d4a3 GM |
105 | #endif |
106 | ||
107 | ||
ede4db72 RS |
108 | #define CUT_BUFFER_SUPPORT |
109 | ||
ede4db72 RS |
110 | Lisp_Object QPRIMARY, QSECONDARY, QSTRING, QINTEGER, QCLIPBOARD, QTIMESTAMP, |
111 | QTEXT, QDELETE, QMULTIPLE, QINCR, QEMACS_TMP, QTARGETS, QATOM, QNULL, | |
112 | QATOM_PAIR; | |
113 | ||
e6c7c988 | 114 | Lisp_Object QCOMPOUND_TEXT; /* This is a type of selection. */ |
5109c8dd | 115 | Lisp_Object QUTF8_STRING; /* This is a type of selection. */ |
e6c7c988 | 116 | |
5a79ea57 | 117 | Lisp_Object Qcompound_text_with_extensions; |
fbbe0ace | 118 | |
ede4db72 RS |
119 | #ifdef CUT_BUFFER_SUPPORT |
120 | Lisp_Object QCUT_BUFFER0, QCUT_BUFFER1, QCUT_BUFFER2, QCUT_BUFFER3, | |
121 | QCUT_BUFFER4, QCUT_BUFFER5, QCUT_BUFFER6, QCUT_BUFFER7; | |
122 | #endif | |
123 | ||
c917a8de SM |
124 | static Lisp_Object Vx_lost_selection_functions; |
125 | static Lisp_Object Vx_sent_selection_functions; | |
0924e3f6 RF |
126 | /* Coding system for communicating with other X clients via selection |
127 | and clipboard. */ | |
93e4ce1b | 128 | static Lisp_Object Vselection_coding_system; |
ede4db72 | 129 | |
16cd5029 KH |
130 | /* Coding system for the next communicating with other X clients. */ |
131 | static Lisp_Object Vnext_selection_coding_system; | |
132 | ||
e57ad4d8 KH |
133 | static Lisp_Object Qforeign_selection; |
134 | ||
ede4db72 RS |
135 | /* If this is a smaller number than the max-request-size of the display, |
136 | emacs will use INCR selection transfer when the selection is larger | |
137 | than this. The max-request-size is usually around 64k, so if you want | |
1b65481e | 138 | emacs to use incremental selection transfers when the selection is |
ede4db72 | 139 | smaller than that, set this. I added this mostly for debugging the |
8f4f023f | 140 | incremental transfer stuff, but it might improve server performance. */ |
ede4db72 RS |
141 | #define MAX_SELECTION_QUANTUM 0xFFFFFF |
142 | ||
c3498e64 JB |
143 | #ifdef HAVE_X11R4 |
144 | #define SELECTION_QUANTUM(dpy) ((XMaxRequestSize(dpy) << 2) - 100) | |
145 | #else | |
146 | #define SELECTION_QUANTUM(dpy) (((dpy)->max_request_size << 2) - 100) | |
147 | #endif | |
ede4db72 | 148 | |
7da64e5c | 149 | /* The timestamp of the last input event Emacs received from the X server. */ |
29674445 KH |
150 | /* Defined in keyboard.c. */ |
151 | extern unsigned long last_event_timestamp; | |
ede4db72 RS |
152 | |
153 | /* This is an association list whose elements are of the form | |
118bd841 RS |
154 | ( SELECTION-NAME SELECTION-VALUE SELECTION-TIMESTAMP FRAME) |
155 | SELECTION-NAME is a lisp symbol, whose name is the name of an X Atom. | |
156 | SELECTION-VALUE is the value that emacs owns for that selection. | |
ede4db72 | 157 | It may be any kind of Lisp object. |
118bd841 | 158 | SELECTION-TIMESTAMP is the time at which emacs began owning this selection, |
ede4db72 | 159 | as a cons of two 16-bit numbers (making a 32 bit time.) |
118bd841 RS |
160 | FRAME is the frame for which we made the selection. |
161 | If there is an entry in this alist, then it can be assumed that Emacs owns | |
ede4db72 RS |
162 | that selection. |
163 | The only (eq) parts of this list that are visible from Lisp are the | |
8f4f023f RS |
164 | selection-values. */ |
165 | static Lisp_Object Vselection_alist; | |
ede4db72 RS |
166 | |
167 | /* This is an alist whose CARs are selection-types (whose names are the same | |
168 | as the names of X Atoms) and whose CDRs are the names of Lisp functions to | |
1b65481e | 169 | call to convert the given Emacs selection value to a string representing |
ede4db72 | 170 | the given selection type. This is for Lisp-level extension of the emacs |
8f4f023f RS |
171 | selection handling. */ |
172 | static Lisp_Object Vselection_converter_alist; | |
ede4db72 RS |
173 | |
174 | /* If the selection owner takes too long to reply to a selection request, | |
8f4f023f | 175 | we give up on it. This is in milliseconds (0 = no timeout.) */ |
31ade731 | 176 | static EMACS_INT x_selection_timeout; |
ede4db72 | 177 | |
dd0fe424 KS |
178 | |
179 | \f | |
678b3958 KS |
180 | /* Define a queue to save up SELECTION_REQUEST_EVENT events for later |
181 | handling. */ | |
dd0fe424 KS |
182 | |
183 | struct selection_event_queue | |
184 | { | |
185 | struct input_event event; | |
186 | struct selection_event_queue *next; | |
187 | }; | |
188 | ||
189 | static struct selection_event_queue *selection_queue; | |
190 | ||
678b3958 | 191 | /* Nonzero means queue up SELECTION_REQUEST_EVENT events. */ |
dd0fe424 KS |
192 | |
193 | static int x_queue_selection_requests; | |
194 | ||
678b3958 | 195 | /* Queue up an SELECTION_REQUEST_EVENT *EVENT, to be processed later. */ |
dd0fe424 KS |
196 | |
197 | static void | |
198 | x_queue_event (event) | |
199 | struct input_event *event; | |
200 | { | |
201 | struct selection_event_queue *queue_tmp; | |
202 | ||
678b3958 KS |
203 | /* Don't queue repeated requests. |
204 | This only happens for large requests which uses the incremental protocol. */ | |
dd0fe424 KS |
205 | for (queue_tmp = selection_queue; queue_tmp; queue_tmp = queue_tmp->next) |
206 | { | |
207 | if (!bcmp (&queue_tmp->event, event, sizeof (*event))) | |
208 | { | |
678b3958 KS |
209 | TRACE1 ("DECLINE DUP SELECTION EVENT %08lx", (unsigned long)queue_tmp); |
210 | x_decline_selection_request (event); | |
dd0fe424 KS |
211 | return; |
212 | } | |
213 | } | |
214 | ||
215 | queue_tmp | |
216 | = (struct selection_event_queue *) xmalloc (sizeof (struct selection_event_queue)); | |
217 | ||
218 | if (queue_tmp != NULL) | |
219 | { | |
678b3958 | 220 | TRACE1 ("QUEUE SELECTION EVENT %08lx", (unsigned long)queue_tmp); |
dd0fe424 KS |
221 | queue_tmp->event = *event; |
222 | queue_tmp->next = selection_queue; | |
223 | selection_queue = queue_tmp; | |
224 | } | |
225 | } | |
226 | ||
678b3958 | 227 | /* Start queuing SELECTION_REQUEST_EVENT events. */ |
dd0fe424 KS |
228 | |
229 | static void | |
230 | x_start_queuing_selection_requests () | |
231 | { | |
232 | if (x_queue_selection_requests) | |
233 | abort (); | |
234 | ||
235 | x_queue_selection_requests++; | |
236 | TRACE1 ("x_start_queuing_selection_requests %d", x_queue_selection_requests); | |
237 | } | |
238 | ||
678b3958 | 239 | /* Stop queuing SELECTION_REQUEST_EVENT events. */ |
dd0fe424 KS |
240 | |
241 | static void | |
242 | x_stop_queuing_selection_requests () | |
243 | { | |
244 | TRACE1 ("x_stop_queuing_selection_requests %d", x_queue_selection_requests); | |
245 | --x_queue_selection_requests; | |
246 | ||
247 | /* Take all the queued events and put them back | |
248 | so that they get processed afresh. */ | |
249 | ||
250 | while (selection_queue != NULL) | |
251 | { | |
252 | struct selection_event_queue *queue_tmp = selection_queue; | |
678b3958 | 253 | TRACE1 ("RESTORE SELECTION EVENT %08lx", (unsigned long)queue_tmp); |
dd0fe424 KS |
254 | kbd_buffer_unget_event (&queue_tmp->event); |
255 | selection_queue = queue_tmp->next; | |
256 | xfree ((char *)queue_tmp); | |
257 | } | |
258 | } | |
259 | \f | |
260 | ||
1b65481e | 261 | /* This converts a Lisp symbol to a server Atom, avoiding a server |
ede4db72 RS |
262 | roundtrip whenever possible. */ |
263 | ||
264 | static Atom | |
5c3a351a RS |
265 | symbol_to_x_atom (dpyinfo, display, sym) |
266 | struct x_display_info *dpyinfo; | |
ede4db72 RS |
267 | Display *display; |
268 | Lisp_Object sym; | |
269 | { | |
270 | Atom val; | |
271 | if (NILP (sym)) return 0; | |
272 | if (EQ (sym, QPRIMARY)) return XA_PRIMARY; | |
273 | if (EQ (sym, QSECONDARY)) return XA_SECONDARY; | |
274 | if (EQ (sym, QSTRING)) return XA_STRING; | |
275 | if (EQ (sym, QINTEGER)) return XA_INTEGER; | |
276 | if (EQ (sym, QATOM)) return XA_ATOM; | |
5c3a351a RS |
277 | if (EQ (sym, QCLIPBOARD)) return dpyinfo->Xatom_CLIPBOARD; |
278 | if (EQ (sym, QTIMESTAMP)) return dpyinfo->Xatom_TIMESTAMP; | |
279 | if (EQ (sym, QTEXT)) return dpyinfo->Xatom_TEXT; | |
e6c7c988 | 280 | if (EQ (sym, QCOMPOUND_TEXT)) return dpyinfo->Xatom_COMPOUND_TEXT; |
5109c8dd | 281 | if (EQ (sym, QUTF8_STRING)) return dpyinfo->Xatom_UTF8_STRING; |
5c3a351a RS |
282 | if (EQ (sym, QDELETE)) return dpyinfo->Xatom_DELETE; |
283 | if (EQ (sym, QMULTIPLE)) return dpyinfo->Xatom_MULTIPLE; | |
284 | if (EQ (sym, QINCR)) return dpyinfo->Xatom_INCR; | |
285 | if (EQ (sym, QEMACS_TMP)) return dpyinfo->Xatom_EMACS_TMP; | |
286 | if (EQ (sym, QTARGETS)) return dpyinfo->Xatom_TARGETS; | |
287 | if (EQ (sym, QNULL)) return dpyinfo->Xatom_NULL; | |
ede4db72 RS |
288 | #ifdef CUT_BUFFER_SUPPORT |
289 | if (EQ (sym, QCUT_BUFFER0)) return XA_CUT_BUFFER0; | |
290 | if (EQ (sym, QCUT_BUFFER1)) return XA_CUT_BUFFER1; | |
291 | if (EQ (sym, QCUT_BUFFER2)) return XA_CUT_BUFFER2; | |
292 | if (EQ (sym, QCUT_BUFFER3)) return XA_CUT_BUFFER3; | |
293 | if (EQ (sym, QCUT_BUFFER4)) return XA_CUT_BUFFER4; | |
294 | if (EQ (sym, QCUT_BUFFER5)) return XA_CUT_BUFFER5; | |
295 | if (EQ (sym, QCUT_BUFFER6)) return XA_CUT_BUFFER6; | |
296 | if (EQ (sym, QCUT_BUFFER7)) return XA_CUT_BUFFER7; | |
297 | #endif | |
298 | if (!SYMBOLP (sym)) abort (); | |
299 | ||
d5db4077 | 300 | TRACE1 (" XInternAtom %s", (char *) SDATA (SYMBOL_NAME (sym))); |
ede4db72 | 301 | BLOCK_INPUT; |
d5db4077 | 302 | val = XInternAtom (display, (char *) SDATA (SYMBOL_NAME (sym)), False); |
ede4db72 RS |
303 | UNBLOCK_INPUT; |
304 | return val; | |
305 | } | |
306 | ||
307 | ||
308 | /* This converts a server Atom to a Lisp symbol, avoiding server roundtrips | |
309 | and calls to intern whenever possible. */ | |
310 | ||
311 | static Lisp_Object | |
d9c0d4a3 GM |
312 | x_atom_to_symbol (dpy, atom) |
313 | Display *dpy; | |
ede4db72 RS |
314 | Atom atom; |
315 | { | |
d9c0d4a3 | 316 | struct x_display_info *dpyinfo; |
ede4db72 RS |
317 | char *str; |
318 | Lisp_Object val; | |
1b65481e | 319 | |
d9c0d4a3 GM |
320 | if (! atom) |
321 | return Qnil; | |
1b65481e | 322 | |
7da64e5c RS |
323 | switch (atom) |
324 | { | |
325 | case XA_PRIMARY: | |
326 | return QPRIMARY; | |
327 | case XA_SECONDARY: | |
328 | return QSECONDARY; | |
329 | case XA_STRING: | |
330 | return QSTRING; | |
331 | case XA_INTEGER: | |
332 | return QINTEGER; | |
333 | case XA_ATOM: | |
334 | return QATOM; | |
ede4db72 | 335 | #ifdef CUT_BUFFER_SUPPORT |
7da64e5c RS |
336 | case XA_CUT_BUFFER0: |
337 | return QCUT_BUFFER0; | |
338 | case XA_CUT_BUFFER1: | |
339 | return QCUT_BUFFER1; | |
340 | case XA_CUT_BUFFER2: | |
341 | return QCUT_BUFFER2; | |
342 | case XA_CUT_BUFFER3: | |
343 | return QCUT_BUFFER3; | |
344 | case XA_CUT_BUFFER4: | |
345 | return QCUT_BUFFER4; | |
346 | case XA_CUT_BUFFER5: | |
347 | return QCUT_BUFFER5; | |
348 | case XA_CUT_BUFFER6: | |
349 | return QCUT_BUFFER6; | |
350 | case XA_CUT_BUFFER7: | |
351 | return QCUT_BUFFER7; | |
ede4db72 | 352 | #endif |
7da64e5c RS |
353 | } |
354 | ||
d9c0d4a3 | 355 | dpyinfo = x_display_info_for_display (dpy); |
5c3a351a | 356 | if (atom == dpyinfo->Xatom_CLIPBOARD) |
7da64e5c | 357 | return QCLIPBOARD; |
5c3a351a | 358 | if (atom == dpyinfo->Xatom_TIMESTAMP) |
7da64e5c | 359 | return QTIMESTAMP; |
5c3a351a | 360 | if (atom == dpyinfo->Xatom_TEXT) |
7da64e5c | 361 | return QTEXT; |
e6c7c988 KH |
362 | if (atom == dpyinfo->Xatom_COMPOUND_TEXT) |
363 | return QCOMPOUND_TEXT; | |
5109c8dd KH |
364 | if (atom == dpyinfo->Xatom_UTF8_STRING) |
365 | return QUTF8_STRING; | |
5c3a351a | 366 | if (atom == dpyinfo->Xatom_DELETE) |
7da64e5c | 367 | return QDELETE; |
5c3a351a | 368 | if (atom == dpyinfo->Xatom_MULTIPLE) |
7da64e5c | 369 | return QMULTIPLE; |
5c3a351a | 370 | if (atom == dpyinfo->Xatom_INCR) |
7da64e5c | 371 | return QINCR; |
5c3a351a | 372 | if (atom == dpyinfo->Xatom_EMACS_TMP) |
7da64e5c | 373 | return QEMACS_TMP; |
5c3a351a | 374 | if (atom == dpyinfo->Xatom_TARGETS) |
7da64e5c | 375 | return QTARGETS; |
5c3a351a | 376 | if (atom == dpyinfo->Xatom_NULL) |
7da64e5c | 377 | return QNULL; |
ede4db72 RS |
378 | |
379 | BLOCK_INPUT; | |
d9c0d4a3 | 380 | str = XGetAtomName (dpy, atom); |
ede4db72 | 381 | UNBLOCK_INPUT; |
d9c0d4a3 | 382 | TRACE1 ("XGetAtomName --> %s", str); |
ede4db72 RS |
383 | if (! str) return Qnil; |
384 | val = intern (str); | |
385 | BLOCK_INPUT; | |
0158abbc | 386 | /* This was allocated by Xlib, so use XFree. */ |
ede4db72 RS |
387 | XFree (str); |
388 | UNBLOCK_INPUT; | |
389 | return val; | |
390 | } | |
8a89415e | 391 | \f |
ede4db72 | 392 | /* Do protocol to assert ourself as a selection owner. |
1b65481e | 393 | Update the Vselection_alist so that we can reply to later requests for |
ede4db72 RS |
394 | our selection. */ |
395 | ||
396 | static void | |
397 | x_own_selection (selection_name, selection_value) | |
398 | Lisp_Object selection_name, selection_value; | |
399 | { | |
378c33ca | 400 | struct frame *sf = SELECTED_FRAME (); |
428a555e KL |
401 | Window selecting_window; |
402 | Display *display; | |
7da64e5c | 403 | Time time = last_event_timestamp; |
ede4db72 | 404 | Atom selection_atom; |
428a555e | 405 | struct x_display_info *dpyinfo; |
ede4db72 | 406 | |
428a555e KL |
407 | if (! FRAME_X_P (sf)) |
408 | return; | |
409 | ||
410 | selecting_window = FRAME_X_WINDOW (sf); | |
411 | display = FRAME_X_DISPLAY (sf); | |
412 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
413 | ||
b7826503 | 414 | CHECK_SYMBOL (selection_name); |
5c3a351a | 415 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection_name); |
ede4db72 RS |
416 | |
417 | BLOCK_INPUT; | |
9ba8e10d | 418 | x_catch_errors (display); |
ede4db72 | 419 | XSetSelectionOwner (display, selection_atom, selecting_window, time); |
a7b24d46 | 420 | x_check_errors (display, "Can't set selection: %s"); |
4545fa20 | 421 | x_uncatch_errors (); |
ede4db72 RS |
422 | UNBLOCK_INPUT; |
423 | ||
424 | /* Now update the local cache */ | |
425 | { | |
426 | Lisp_Object selection_time; | |
427 | Lisp_Object selection_data; | |
428 | Lisp_Object prev_value; | |
429 | ||
430 | selection_time = long_to_cons ((unsigned long) time); | |
431 | selection_data = Fcons (selection_name, | |
432 | Fcons (selection_value, | |
118bd841 | 433 | Fcons (selection_time, |
378c33ca | 434 | Fcons (selected_frame, Qnil)))); |
ede4db72 RS |
435 | prev_value = assq_no_quit (selection_name, Vselection_alist); |
436 | ||
437 | Vselection_alist = Fcons (selection_data, Vselection_alist); | |
438 | ||
439 | /* If we already owned the selection, remove the old selection data. | |
440 | Perhaps we should destructively modify it instead. | |
441 | Don't use Fdelq as that may QUIT. */ | |
442 | if (!NILP (prev_value)) | |
443 | { | |
444 | Lisp_Object rest; /* we know it's not the CAR, so it's easy. */ | |
99784d63 | 445 | for (rest = Vselection_alist; CONSP (rest); rest = XCDR (rest)) |
8e713be6 | 446 | if (EQ (prev_value, Fcar (XCDR (rest)))) |
ede4db72 | 447 | { |
f3fbd155 | 448 | XSETCDR (rest, Fcdr (XCDR (rest))); |
ede4db72 RS |
449 | break; |
450 | } | |
451 | } | |
452 | } | |
453 | } | |
454 | \f | |
455 | /* Given a selection-name and desired type, look up our local copy of | |
456 | the selection value and convert it to the type. | |
457 | The value is nil or a string. | |
5109c8dd KH |
458 | This function is used both for remote requests (LOCAL_REQUEST is zero) |
459 | and for local x-get-selection-internal (LOCAL_REQUEST is nonzero). | |
ede4db72 RS |
460 | |
461 | This calls random Lisp code, and may signal or gc. */ | |
462 | ||
463 | static Lisp_Object | |
5109c8dd | 464 | x_get_local_selection (selection_symbol, target_type, local_request) |
ede4db72 | 465 | Lisp_Object selection_symbol, target_type; |
5109c8dd | 466 | int local_request; |
ede4db72 RS |
467 | { |
468 | Lisp_Object local_value; | |
469 | Lisp_Object handler_fn, value, type, check; | |
470 | int count; | |
471 | ||
472 | local_value = assq_no_quit (selection_symbol, Vselection_alist); | |
473 | ||
474 | if (NILP (local_value)) return Qnil; | |
475 | ||
476 | /* TIMESTAMP and MULTIPLE are special cases 'cause that's easiest. */ | |
477 | if (EQ (target_type, QTIMESTAMP)) | |
478 | { | |
479 | handler_fn = Qnil; | |
8e713be6 | 480 | value = XCAR (XCDR (XCDR (local_value))); |
ede4db72 RS |
481 | } |
482 | #if 0 | |
483 | else if (EQ (target_type, QDELETE)) | |
484 | { | |
485 | handler_fn = Qnil; | |
486 | Fx_disown_selection_internal | |
487 | (selection_symbol, | |
8e713be6 | 488 | XCAR (XCDR (XCDR (local_value)))); |
ede4db72 RS |
489 | value = QNULL; |
490 | } | |
491 | #endif | |
492 | ||
493 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
494 | else if (CONSP (target_type) | |
8e713be6 | 495 | && XCAR (target_type) == QMULTIPLE) |
ede4db72 | 496 | { |
9d2d1dd8 KH |
497 | Lisp_Object pairs; |
498 | int size; | |
ede4db72 | 499 | int i; |
8e713be6 | 500 | pairs = XCDR (target_type); |
9d2d1dd8 | 501 | size = XVECTOR (pairs)->size; |
ede4db72 RS |
502 | /* If the target is MULTIPLE, then target_type looks like |
503 | (MULTIPLE . [[SELECTION1 TARGET1] [SELECTION2 TARGET2] ... ]) | |
504 | We modify the second element of each pair in the vector and | |
505 | return it as [[SELECTION1 <value1>] [SELECTION2 <value2>] ... ] | |
506 | */ | |
507 | for (i = 0; i < size; i++) | |
508 | { | |
9d2d1dd8 KH |
509 | Lisp_Object pair; |
510 | pair = XVECTOR (pairs)->contents [i]; | |
ede4db72 RS |
511 | XVECTOR (pair)->contents [1] |
512 | = x_get_local_selection (XVECTOR (pair)->contents [0], | |
5109c8dd KH |
513 | XVECTOR (pair)->contents [1], |
514 | local_request); | |
ede4db72 RS |
515 | } |
516 | return pairs; | |
517 | } | |
518 | #endif | |
519 | else | |
520 | { | |
521 | /* Don't allow a quit within the converter. | |
522 | When the user types C-g, he would be surprised | |
523 | if by luck it came during a converter. */ | |
aed13378 | 524 | count = SPECPDL_INDEX (); |
ede4db72 RS |
525 | specbind (Qinhibit_quit, Qt); |
526 | ||
b7826503 | 527 | CHECK_SYMBOL (target_type); |
ede4db72 | 528 | handler_fn = Fcdr (Fassq (target_type, Vselection_converter_alist)); |
4f06187f RS |
529 | /* gcpro is not needed here since nothing but HANDLER_FN |
530 | is live, and that ought to be a symbol. */ | |
531 | ||
1eb4d468 RS |
532 | if (!NILP (handler_fn)) |
533 | value = call3 (handler_fn, | |
5109c8dd | 534 | selection_symbol, (local_request ? Qnil : target_type), |
8e713be6 | 535 | XCAR (XCDR (local_value))); |
1eb4d468 RS |
536 | else |
537 | value = Qnil; | |
ede4db72 RS |
538 | unbind_to (count, Qnil); |
539 | } | |
540 | ||
541 | /* Make sure this value is of a type that we could transmit | |
542 | to another X client. */ | |
a87ed99c | 543 | |
ede4db72 RS |
544 | check = value; |
545 | if (CONSP (value) | |
8e713be6 KR |
546 | && SYMBOLP (XCAR (value))) |
547 | type = XCAR (value), | |
548 | check = XCDR (value); | |
1b65481e | 549 | |
ede4db72 RS |
550 | if (STRINGP (check) |
551 | || VECTORP (check) | |
552 | || SYMBOLP (check) | |
7da64e5c | 553 | || INTEGERP (check) |
ede4db72 RS |
554 | || NILP (value)) |
555 | return value; | |
a87ed99c | 556 | /* Check for a value that cons_to_long could handle. */ |
ede4db72 | 557 | else if (CONSP (check) |
8e713be6 KR |
558 | && INTEGERP (XCAR (check)) |
559 | && (INTEGERP (XCDR (check)) | |
ede4db72 | 560 | || |
8e713be6 KR |
561 | (CONSP (XCDR (check)) |
562 | && INTEGERP (XCAR (XCDR (check))) | |
563 | && NILP (XCDR (XCDR (check)))))) | |
ede4db72 | 564 | return value; |
4d30ce50 KS |
565 | |
566 | signal_error ("Invalid data returned by selection-conversion function", | |
567 | list2 (handler_fn, value)); | |
ede4db72 RS |
568 | } |
569 | \f | |
570 | /* Subroutines of x_reply_selection_request. */ | |
571 | ||
5d0ba25b | 572 | /* Send a SelectionNotify event to the requestor with property=None, |
ede4db72 RS |
573 | meaning we were unable to do what they wanted. */ |
574 | ||
575 | static void | |
576 | x_decline_selection_request (event) | |
577 | struct input_event *event; | |
578 | { | |
579 | XSelectionEvent reply; | |
1b65481e | 580 | |
ede4db72 RS |
581 | reply.type = SelectionNotify; |
582 | reply.display = SELECTION_EVENT_DISPLAY (event); | |
5d0ba25b | 583 | reply.requestor = SELECTION_EVENT_REQUESTOR (event); |
ede4db72 RS |
584 | reply.selection = SELECTION_EVENT_SELECTION (event); |
585 | reply.time = SELECTION_EVENT_TIME (event); | |
586 | reply.target = SELECTION_EVENT_TARGET (event); | |
587 | reply.property = None; | |
588 | ||
d9c0d4a3 GM |
589 | /* The reason for the error may be that the receiver has |
590 | died in the meantime. Handle that case. */ | |
ede4db72 | 591 | BLOCK_INPUT; |
9ba8e10d | 592 | x_catch_errors (reply.display); |
d9c0d4a3 | 593 | XSendEvent (reply.display, reply.requestor, False, 0L, (XEvent *) &reply); |
5c3a351a | 594 | XFlush (reply.display); |
4545fa20 | 595 | x_uncatch_errors (); |
ede4db72 RS |
596 | UNBLOCK_INPUT; |
597 | } | |
598 | ||
599 | /* This is the selection request currently being processed. | |
600 | It is set to zero when the request is fully processed. */ | |
601 | static struct input_event *x_selection_current_request; | |
602 | ||
ca29f2b8 GM |
603 | /* Display info in x_selection_request. */ |
604 | ||
605 | static struct x_display_info *selection_request_dpyinfo; | |
606 | ||
ede4db72 | 607 | /* Used as an unwind-protect clause so that, if a selection-converter signals |
2a1a4c9d | 608 | an error, we tell the requester that we were unable to do what they wanted |
ede4db72 RS |
609 | before we throw to top-level or go into the debugger or whatever. */ |
610 | ||
611 | static Lisp_Object | |
612 | x_selection_request_lisp_error (ignore) | |
613 | Lisp_Object ignore; | |
614 | { | |
ca29f2b8 GM |
615 | if (x_selection_current_request != 0 |
616 | && selection_request_dpyinfo->display) | |
ede4db72 RS |
617 | x_decline_selection_request (x_selection_current_request); |
618 | return Qnil; | |
619 | } | |
c525d842 CY |
620 | |
621 | static Lisp_Object | |
622 | x_catch_errors_unwind (dummy) | |
623 | Lisp_Object dummy; | |
624 | { | |
625 | BLOCK_INPUT; | |
626 | x_uncatch_errors (); | |
627 | UNBLOCK_INPUT; | |
6f10509c | 628 | return Qnil; |
c525d842 | 629 | } |
ede4db72 | 630 | \f |
d1f21a66 RS |
631 | |
632 | /* This stuff is so that INCR selections are reentrant (that is, so we can | |
633 | be servicing multiple INCR selection requests simultaneously.) I haven't | |
634 | actually tested that yet. */ | |
635 | ||
636 | /* Keep a list of the property changes that are awaited. */ | |
637 | ||
638 | struct prop_location | |
639 | { | |
640 | int identifier; | |
641 | Display *display; | |
642 | Window window; | |
643 | Atom property; | |
644 | int desired_state; | |
645 | int arrived; | |
646 | struct prop_location *next; | |
647 | }; | |
648 | ||
649 | static struct prop_location *expect_property_change (); | |
650 | static void wait_for_property_change (); | |
651 | static void unexpect_property_change (); | |
652 | static int waiting_for_other_props_on_window (); | |
653 | ||
654 | static int prop_location_identifier; | |
655 | ||
656 | static Lisp_Object property_change_reply; | |
657 | ||
658 | static struct prop_location *property_change_reply_object; | |
659 | ||
660 | static struct prop_location *property_change_wait_list; | |
55b2d45d RS |
661 | |
662 | static Lisp_Object | |
dd0fe424 KS |
663 | queue_selection_requests_unwind (tem) |
664 | Lisp_Object tem; | |
55b2d45d | 665 | { |
dd0fe424 | 666 | x_stop_queuing_selection_requests (); |
ab552306 | 667 | return Qnil; |
55b2d45d RS |
668 | } |
669 | ||
670 | /* Return some frame whose display info is DPYINFO. | |
671 | Return nil if there is none. */ | |
672 | ||
673 | static Lisp_Object | |
674 | some_frame_on_display (dpyinfo) | |
675 | struct x_display_info *dpyinfo; | |
676 | { | |
677 | Lisp_Object list, frame; | |
678 | ||
679 | FOR_EACH_FRAME (list, frame) | |
680 | { | |
428a555e KL |
681 | if (FRAME_X_P (XFRAME (frame)) |
682 | && FRAME_X_DISPLAY_INFO (XFRAME (frame)) == dpyinfo) | |
55b2d45d RS |
683 | return frame; |
684 | } | |
685 | ||
686 | return Qnil; | |
687 | } | |
d1f21a66 | 688 | \f |
ede4db72 RS |
689 | /* Send the reply to a selection request event EVENT. |
690 | TYPE is the type of selection data requested. | |
691 | DATA and SIZE describe the data to send, already converted. | |
692 | FORMAT is the unit-size (in bits) of the data to be transmitted. */ | |
693 | ||
46d47e41 | 694 | #ifdef TRACE_SELECTION |
ca7af97a | 695 | static int x_reply_selection_request_cnt; |
46d47e41 GM |
696 | #endif /* TRACE_SELECTION */ |
697 | ||
ede4db72 RS |
698 | static void |
699 | x_reply_selection_request (event, format, data, size, type) | |
700 | struct input_event *event; | |
701 | int format, size; | |
702 | unsigned char *data; | |
703 | Atom type; | |
704 | { | |
705 | XSelectionEvent reply; | |
706 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
5d0ba25b | 707 | Window window = SELECTION_EVENT_REQUESTOR (event); |
ede4db72 RS |
708 | int bytes_remaining; |
709 | int format_bytes = format/8; | |
710 | int max_bytes = SELECTION_QUANTUM (display); | |
5c3a351a | 711 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
9ba8e10d | 712 | int count = SPECPDL_INDEX (); |
ede4db72 RS |
713 | |
714 | if (max_bytes > MAX_SELECTION_QUANTUM) | |
715 | max_bytes = MAX_SELECTION_QUANTUM; | |
716 | ||
717 | reply.type = SelectionNotify; | |
718 | reply.display = display; | |
5d0ba25b | 719 | reply.requestor = window; |
ede4db72 RS |
720 | reply.selection = SELECTION_EVENT_SELECTION (event); |
721 | reply.time = SELECTION_EVENT_TIME (event); | |
722 | reply.target = SELECTION_EVENT_TARGET (event); | |
723 | reply.property = SELECTION_EVENT_PROPERTY (event); | |
724 | if (reply.property == None) | |
725 | reply.property = reply.target; | |
726 | ||
afe1529d | 727 | BLOCK_INPUT; |
c525d842 CY |
728 | /* The protected block contains wait_for_property_change, which can |
729 | run random lisp code (process handlers) or signal. Therefore, we | |
730 | put the x_uncatch_errors call in an unwind. */ | |
731 | record_unwind_protect (x_catch_errors_unwind, Qnil); | |
9ba8e10d | 732 | x_catch_errors (display); |
ede4db72 | 733 | |
9c3ad9e1 JD |
734 | #ifdef TRACE_SELECTION |
735 | { | |
9c3ad9e1 JD |
736 | char *sel = XGetAtomName (display, reply.selection); |
737 | char *tgt = XGetAtomName (display, reply.target); | |
ca7af97a | 738 | TRACE3 ("%s, target %s (%d)", sel, tgt, ++x_reply_selection_request_cnt); |
9c3ad9e1 JD |
739 | if (sel) XFree (sel); |
740 | if (tgt) XFree (tgt); | |
741 | } | |
742 | #endif /* TRACE_SELECTION */ | |
743 | ||
ede4db72 RS |
744 | /* Store the data on the requested property. |
745 | If the selection is large, only store the first N bytes of it. | |
746 | */ | |
747 | bytes_remaining = size * format_bytes; | |
748 | if (bytes_remaining <= max_bytes) | |
749 | { | |
750 | /* Send all the data at once, with minimal handshaking. */ | |
d9c0d4a3 | 751 | TRACE1 ("Sending all %d bytes", bytes_remaining); |
ede4db72 RS |
752 | XChangeProperty (display, window, reply.property, type, format, |
753 | PropModeReplace, data, size); | |
754 | /* At this point, the selection was successfully stored; ack it. */ | |
2f65feb6 | 755 | XSendEvent (display, window, False, 0L, (XEvent *) &reply); |
ede4db72 RS |
756 | } |
757 | else | |
758 | { | |
759 | /* Send an INCR selection. */ | |
d1f21a66 | 760 | struct prop_location *wait_object; |
afe1529d | 761 | int had_errors; |
55b2d45d | 762 | Lisp_Object frame; |
ede4db72 | 763 | |
55b2d45d RS |
764 | frame = some_frame_on_display (dpyinfo); |
765 | ||
766 | /* If the display no longer has frames, we can't expect | |
767 | to get many more selection requests from it, so don't | |
768 | bother trying to queue them. */ | |
769 | if (!NILP (frame)) | |
770 | { | |
dd0fe424 | 771 | x_start_queuing_selection_requests (); |
55b2d45d RS |
772 | |
773 | record_unwind_protect (queue_selection_requests_unwind, | |
dd0fe424 | 774 | Qnil); |
55b2d45d | 775 | } |
2f65feb6 | 776 | |
19126e11 | 777 | if (x_window_to_frame (dpyinfo, window)) /* #### debug */ |
606140dd | 778 | error ("Attempt to transfer an INCR to ourself!"); |
1b65481e | 779 | |
d9c0d4a3 GM |
780 | TRACE2 ("Start sending %d bytes incrementally (%s)", |
781 | bytes_remaining, XGetAtomName (display, reply.property)); | |
d1f21a66 RS |
782 | wait_object = expect_property_change (display, window, reply.property, |
783 | PropertyDelete); | |
ede4db72 | 784 | |
d9c0d4a3 GM |
785 | TRACE1 ("Set %s to number of bytes to send", |
786 | XGetAtomName (display, reply.property)); | |
e22cf39c JD |
787 | { |
788 | /* XChangeProperty expects an array of long even if long is more than | |
789 | 32 bits. */ | |
790 | long value[1]; | |
791 | ||
792 | value[0] = bytes_remaining; | |
793 | XChangeProperty (display, window, reply.property, dpyinfo->Xatom_INCR, | |
794 | 32, PropModeReplace, | |
795 | (unsigned char *) value, 1); | |
796 | } | |
797 | ||
ede4db72 | 798 | XSelectInput (display, window, PropertyChangeMask); |
1b65481e | 799 | |
ede4db72 | 800 | /* Tell 'em the INCR data is there... */ |
d9c0d4a3 | 801 | TRACE0 ("Send SelectionNotify event"); |
55b2d45d | 802 | XSendEvent (display, window, False, 0L, (XEvent *) &reply); |
5c3a351a | 803 | XFlush (display); |
afe1529d RS |
804 | |
805 | had_errors = x_had_errors_p (display); | |
2f65feb6 | 806 | UNBLOCK_INPUT; |
ede4db72 | 807 | |
2a1a4c9d | 808 | /* First, wait for the requester to ack by deleting the property. |
ede4db72 | 809 | This can run random lisp code (process handlers) or signal. */ |
afe1529d | 810 | if (! had_errors) |
d9c0d4a3 GM |
811 | { |
812 | TRACE1 ("Waiting for ACK (deletion of %s)", | |
813 | XGetAtomName (display, reply.property)); | |
814 | wait_for_property_change (wait_object); | |
815 | } | |
dd0fe424 KS |
816 | else |
817 | unexpect_property_change (wait_object); | |
ede4db72 | 818 | |
d9c0d4a3 | 819 | TRACE0 ("Got ACK"); |
ede4db72 RS |
820 | while (bytes_remaining) |
821 | { | |
e22cf39c JD |
822 | int i = ((bytes_remaining < max_bytes) |
823 | ? bytes_remaining | |
824 | : max_bytes); | |
2f65feb6 RS |
825 | |
826 | BLOCK_INPUT; | |
827 | ||
d1f21a66 RS |
828 | wait_object |
829 | = expect_property_change (display, window, reply.property, | |
830 | PropertyDelete); | |
d9c0d4a3 GM |
831 | |
832 | TRACE1 ("Sending increment of %d bytes", i); | |
833 | TRACE1 ("Set %s to increment data", | |
834 | XGetAtomName (display, reply.property)); | |
1b65481e | 835 | |
ede4db72 RS |
836 | /* Append the next chunk of data to the property. */ |
837 | XChangeProperty (display, window, reply.property, type, format, | |
838 | PropModeAppend, data, i / format_bytes); | |
839 | bytes_remaining -= i; | |
840 | data += i; | |
5c3a351a | 841 | XFlush (display); |
afe1529d | 842 | had_errors = x_had_errors_p (display); |
2f65feb6 | 843 | UNBLOCK_INPUT; |
ede4db72 | 844 | |
afe1529d RS |
845 | if (had_errors) |
846 | break; | |
847 | ||
2a1a4c9d | 848 | /* Now wait for the requester to ack this chunk by deleting the |
db9cd97a | 849 | property. This can run random lisp code or signal. */ |
d9c0d4a3 GM |
850 | TRACE1 ("Waiting for increment ACK (deletion of %s)", |
851 | XGetAtomName (display, reply.property)); | |
d1f21a66 | 852 | wait_for_property_change (wait_object); |
ede4db72 | 853 | } |
1b65481e | 854 | |
d9c0d4a3 GM |
855 | /* Now write a zero-length chunk to the property to tell the |
856 | requester that we're done. */ | |
2f65feb6 | 857 | BLOCK_INPUT; |
ede4db72 RS |
858 | if (! waiting_for_other_props_on_window (display, window)) |
859 | XSelectInput (display, window, 0L); | |
860 | ||
d9c0d4a3 GM |
861 | TRACE1 ("Set %s to a 0-length chunk to indicate EOF", |
862 | XGetAtomName (display, reply.property)); | |
ede4db72 RS |
863 | XChangeProperty (display, window, reply.property, type, format, |
864 | PropModeReplace, data, 0); | |
d9c0d4a3 | 865 | TRACE0 ("Done sending incrementally"); |
ede4db72 | 866 | } |
afe1529d | 867 | |
ceabd272 | 868 | /* rms, 2003-01-03: I think I have fixed this bug. */ |
47a6ac17 GM |
869 | /* The window we're communicating with may have been deleted |
870 | in the meantime (that's a real situation from a bug report). | |
871 | In this case, there may be events in the event queue still | |
872 | refering to the deleted window, and we'll get a BadWindow error | |
873 | in XTread_socket when processing the events. I don't have | |
874 | an idea how to fix that. gerd, 2001-01-98. */ | |
844fc085 JD |
875 | /* 2004-09-10: XSync and UNBLOCK so that possible protocol errors are |
876 | delivered before uncatch errors. */ | |
877 | XSync (display, False); | |
afe1529d | 878 | UNBLOCK_INPUT; |
0608b1a0 JD |
879 | |
880 | /* GTK queues events in addition to the queue in Xlib. So we | |
881 | UNBLOCK to enter the event loop and get possible errors delivered, | |
882 | and then BLOCK again because x_uncatch_errors requires it. */ | |
883 | BLOCK_INPUT; | |
c525d842 | 884 | /* This calls x_uncatch_errors. */ |
9ba8e10d | 885 | unbind_to (count, Qnil); |
afe1529d | 886 | UNBLOCK_INPUT; |
ede4db72 RS |
887 | } |
888 | \f | |
889 | /* Handle a SelectionRequest event EVENT. | |
890 | This is called from keyboard.c when such an event is found in the queue. */ | |
891 | ||
dd0fe424 | 892 | static void |
ede4db72 RS |
893 | x_handle_selection_request (event) |
894 | struct input_event *event; | |
895 | { | |
896 | struct gcpro gcpro1, gcpro2, gcpro3; | |
9d2d1dd8 | 897 | Lisp_Object local_selection_data; |
ede4db72 | 898 | Lisp_Object selection_symbol; |
9d2d1dd8 KH |
899 | Lisp_Object target_symbol; |
900 | Lisp_Object converted_selection; | |
ede4db72 | 901 | Time local_selection_time; |
9d2d1dd8 | 902 | Lisp_Object successful_p; |
ede4db72 | 903 | int count; |
5c3a351a RS |
904 | struct x_display_info *dpyinfo |
905 | = x_display_info_for_display (SELECTION_EVENT_DISPLAY (event)); | |
ede4db72 | 906 | |
678b3958 KS |
907 | TRACE2 ("x_handle_selection_request, from=0x%08lx time=%lu", |
908 | (unsigned long) SELECTION_EVENT_REQUESTOR (event), | |
909 | (unsigned long) SELECTION_EVENT_TIME (event)); | |
dd0fe424 | 910 | |
9d2d1dd8 KH |
911 | local_selection_data = Qnil; |
912 | target_symbol = Qnil; | |
913 | converted_selection = Qnil; | |
914 | successful_p = Qnil; | |
915 | ||
ede4db72 RS |
916 | GCPRO3 (local_selection_data, converted_selection, target_symbol); |
917 | ||
d9c0d4a3 | 918 | selection_symbol = x_atom_to_symbol (SELECTION_EVENT_DISPLAY (event), |
ede4db72 RS |
919 | SELECTION_EVENT_SELECTION (event)); |
920 | ||
921 | local_selection_data = assq_no_quit (selection_symbol, Vselection_alist); | |
ede4db72 RS |
922 | |
923 | if (NILP (local_selection_data)) | |
924 | { | |
925 | /* Someone asked for the selection, but we don't have it any more. | |
926 | */ | |
927 | x_decline_selection_request (event); | |
928 | goto DONE; | |
929 | } | |
930 | ||
931 | local_selection_time = (Time) | |
8e713be6 | 932 | cons_to_long (XCAR (XCDR (XCDR (local_selection_data)))); |
ede4db72 RS |
933 | |
934 | if (SELECTION_EVENT_TIME (event) != CurrentTime | |
7da64e5c | 935 | && local_selection_time > SELECTION_EVENT_TIME (event)) |
ede4db72 RS |
936 | { |
937 | /* Someone asked for the selection, and we have one, but not the one | |
938 | they're looking for. | |
939 | */ | |
940 | x_decline_selection_request (event); | |
941 | goto DONE; | |
942 | } | |
943 | ||
ede4db72 | 944 | x_selection_current_request = event; |
331379bf | 945 | count = SPECPDL_INDEX (); |
ca29f2b8 | 946 | selection_request_dpyinfo = dpyinfo; |
ede4db72 RS |
947 | record_unwind_protect (x_selection_request_lisp_error, Qnil); |
948 | ||
d9c0d4a3 | 949 | target_symbol = x_atom_to_symbol (SELECTION_EVENT_DISPLAY (event), |
ede4db72 RS |
950 | SELECTION_EVENT_TARGET (event)); |
951 | ||
952 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
953 | if (EQ (target_symbol, QMULTIPLE)) | |
954 | target_symbol = fetch_multiple_target (event); | |
955 | #endif | |
1b65481e | 956 | |
ede4db72 | 957 | /* Convert lisp objects back into binary data */ |
1b65481e | 958 | |
ede4db72 | 959 | converted_selection |
5109c8dd | 960 | = x_get_local_selection (selection_symbol, target_symbol, 0); |
1b65481e | 961 | |
ede4db72 RS |
962 | if (! NILP (converted_selection)) |
963 | { | |
964 | unsigned char *data; | |
965 | unsigned int size; | |
966 | int format; | |
967 | Atom type; | |
aca39f42 RS |
968 | int nofree; |
969 | ||
866f8518 JD |
970 | if (CONSP (converted_selection) && NILP (XCDR (converted_selection))) |
971 | { | |
972 | x_decline_selection_request (event); | |
973 | goto DONE2; | |
974 | } | |
975 | ||
2f65feb6 RS |
976 | lisp_data_to_selection_data (SELECTION_EVENT_DISPLAY (event), |
977 | converted_selection, | |
aca39f42 | 978 | &data, &type, &size, &format, &nofree); |
1b65481e | 979 | |
ede4db72 RS |
980 | x_reply_selection_request (event, format, data, size, type); |
981 | successful_p = Qt; | |
982 | ||
983 | /* Indicate we have successfully processed this event. */ | |
7da64e5c | 984 | x_selection_current_request = 0; |
ede4db72 | 985 | |
4feb31b2 | 986 | /* Use xfree, not XFree, because lisp_data_to_selection_data |
0158abbc | 987 | calls xmalloc itself. */ |
aca39f42 | 988 | if (!nofree) |
4feb31b2 | 989 | xfree (data); |
ede4db72 | 990 | } |
866f8518 JD |
991 | |
992 | DONE2: | |
ede4db72 RS |
993 | unbind_to (count, Qnil); |
994 | ||
995 | DONE: | |
996 | ||
ede4db72 RS |
997 | /* Let random lisp code notice that the selection has been asked for. */ |
998 | { | |
9d2d1dd8 | 999 | Lisp_Object rest; |
c917a8de | 1000 | rest = Vx_sent_selection_functions; |
ede4db72 RS |
1001 | if (!EQ (rest, Qunbound)) |
1002 | for (; CONSP (rest); rest = Fcdr (rest)) | |
1003 | call3 (Fcar (rest), selection_symbol, target_symbol, successful_p); | |
1004 | } | |
4f06187f RS |
1005 | |
1006 | UNGCPRO; | |
ede4db72 RS |
1007 | } |
1008 | \f | |
e18e6130 | 1009 | /* Handle a SelectionClear event EVENT, which indicates that some |
ede4db72 RS |
1010 | client cleared out our previously asserted selection. |
1011 | This is called from keyboard.c when such an event is found in the queue. */ | |
1012 | ||
dd0fe424 | 1013 | static void |
ede4db72 RS |
1014 | x_handle_selection_clear (event) |
1015 | struct input_event *event; | |
1016 | { | |
1017 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
1018 | Atom selection = SELECTION_EVENT_SELECTION (event); | |
1019 | Time changed_owner_time = SELECTION_EVENT_TIME (event); | |
1b65481e | 1020 | |
ede4db72 RS |
1021 | Lisp_Object selection_symbol, local_selection_data; |
1022 | Time local_selection_time; | |
5c3a351a | 1023 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
e18e6130 RS |
1024 | struct x_display_info *t_dpyinfo; |
1025 | ||
dd0fe424 KS |
1026 | TRACE0 ("x_handle_selection_clear"); |
1027 | ||
d17cf4eb | 1028 | #ifdef MULTI_KBOARD |
e18e6130 RS |
1029 | /* If the new selection owner is also Emacs, |
1030 | don't clear the new selection. */ | |
1031 | BLOCK_INPUT; | |
1032 | /* Check each display on the same terminal, | |
1033 | to see if this Emacs job now owns the selection | |
1034 | through that display. */ | |
1035 | for (t_dpyinfo = x_display_list; t_dpyinfo; t_dpyinfo = t_dpyinfo->next) | |
6ed8eeff | 1036 | if (t_dpyinfo->terminal->kboard == dpyinfo->terminal->kboard) |
e18e6130 RS |
1037 | { |
1038 | Window owner_window | |
1039 | = XGetSelectionOwner (t_dpyinfo->display, selection); | |
1040 | if (x_window_to_frame (t_dpyinfo, owner_window) != 0) | |
1041 | { | |
1042 | UNBLOCK_INPUT; | |
1043 | return; | |
1044 | } | |
1045 | } | |
1046 | UNBLOCK_INPUT; | |
d17cf4eb DN |
1047 | #endif |
1048 | ||
d9c0d4a3 | 1049 | selection_symbol = x_atom_to_symbol (display, selection); |
ede4db72 RS |
1050 | |
1051 | local_selection_data = assq_no_quit (selection_symbol, Vselection_alist); | |
1052 | ||
1053 | /* Well, we already believe that we don't own it, so that's just fine. */ | |
1054 | if (NILP (local_selection_data)) return; | |
1055 | ||
1056 | local_selection_time = (Time) | |
8e713be6 | 1057 | cons_to_long (XCAR (XCDR (XCDR (local_selection_data)))); |
ede4db72 RS |
1058 | |
1059 | /* This SelectionClear is for a selection that we no longer own, so we can | |
1060 | disregard it. (That is, we have reasserted the selection since this | |
1061 | request was generated.) */ | |
1062 | ||
1063 | if (changed_owner_time != CurrentTime | |
1064 | && local_selection_time > changed_owner_time) | |
1065 | return; | |
1066 | ||
1067 | /* Otherwise, we're really honest and truly being told to drop it. | |
1068 | Don't use Fdelq as that may QUIT;. */ | |
1069 | ||
1070 | if (EQ (local_selection_data, Fcar (Vselection_alist))) | |
1071 | Vselection_alist = Fcdr (Vselection_alist); | |
1072 | else | |
1073 | { | |
1074 | Lisp_Object rest; | |
99784d63 | 1075 | for (rest = Vselection_alist; CONSP (rest); rest = XCDR (rest)) |
8e713be6 | 1076 | if (EQ (local_selection_data, Fcar (XCDR (rest)))) |
ede4db72 | 1077 | { |
f3fbd155 | 1078 | XSETCDR (rest, Fcdr (XCDR (rest))); |
ede4db72 RS |
1079 | break; |
1080 | } | |
1081 | } | |
1082 | ||
1083 | /* Let random lisp code notice that the selection has been stolen. */ | |
1084 | ||
1085 | { | |
d1f21a66 | 1086 | Lisp_Object rest; |
c917a8de | 1087 | rest = Vx_lost_selection_functions; |
ede4db72 | 1088 | if (!EQ (rest, Qunbound)) |
d1f21a66 RS |
1089 | { |
1090 | for (; CONSP (rest); rest = Fcdr (rest)) | |
1091 | call1 (Fcar (rest), selection_symbol); | |
7c6b2ea4 | 1092 | prepare_menu_bars (); |
3007ebfb | 1093 | redisplay_preserve_echo_area (20); |
d1f21a66 | 1094 | } |
ede4db72 RS |
1095 | } |
1096 | } | |
1097 | ||
dd0fe424 KS |
1098 | void |
1099 | x_handle_selection_event (event) | |
1100 | struct input_event *event; | |
1101 | { | |
1102 | TRACE0 ("x_handle_selection_event"); | |
1103 | ||
1104 | if (event->kind == SELECTION_REQUEST_EVENT) | |
1105 | { | |
1106 | if (x_queue_selection_requests) | |
1107 | x_queue_event (event); | |
1108 | else | |
1109 | x_handle_selection_request (event); | |
1110 | } | |
1111 | else | |
1112 | x_handle_selection_clear (event); | |
1113 | } | |
1114 | ||
1115 | ||
118bd841 RS |
1116 | /* Clear all selections that were made from frame F. |
1117 | We do this when about to delete a frame. */ | |
1118 | ||
1119 | void | |
1120 | x_clear_frame_selections (f) | |
1121 | FRAME_PTR f; | |
1122 | { | |
1123 | Lisp_Object frame; | |
1124 | Lisp_Object rest; | |
1125 | ||
90851bbe | 1126 | XSETFRAME (frame, f); |
118bd841 RS |
1127 | |
1128 | /* Otherwise, we're really honest and truly being told to drop it. | |
1129 | Don't use Fdelq as that may QUIT;. */ | |
1130 | ||
0d199f9c RS |
1131 | /* Delete elements from the beginning of Vselection_alist. */ |
1132 | while (!NILP (Vselection_alist) | |
1133 | && EQ (frame, Fcar (Fcdr (Fcdr (Fcdr (Fcar (Vselection_alist))))))) | |
1134 | { | |
1135 | /* Let random Lisp code notice that the selection has been stolen. */ | |
1136 | Lisp_Object hooks, selection_symbol; | |
1137 | ||
c917a8de | 1138 | hooks = Vx_lost_selection_functions; |
0d199f9c RS |
1139 | selection_symbol = Fcar (Fcar (Vselection_alist)); |
1140 | ||
1141 | if (!EQ (hooks, Qunbound)) | |
1142 | { | |
1143 | for (; CONSP (hooks); hooks = Fcdr (hooks)) | |
1144 | call1 (Fcar (hooks), selection_symbol); | |
996b804d MB |
1145 | #if 0 /* This can crash when deleting a frame |
1146 | from x_connection_closed. Anyway, it seems unnecessary; | |
1147 | something else should cause a redisplay. */ | |
3007ebfb | 1148 | redisplay_preserve_echo_area (21); |
996b804d | 1149 | #endif |
0d199f9c RS |
1150 | } |
1151 | ||
1152 | Vselection_alist = Fcdr (Vselection_alist); | |
1153 | } | |
1154 | ||
1155 | /* Delete elements after the beginning of Vselection_alist. */ | |
99784d63 | 1156 | for (rest = Vselection_alist; CONSP (rest); rest = XCDR (rest)) |
8e713be6 | 1157 | if (EQ (frame, Fcar (Fcdr (Fcdr (Fcdr (Fcar (XCDR (rest)))))))) |
118bd841 RS |
1158 | { |
1159 | /* Let random Lisp code notice that the selection has been stolen. */ | |
1160 | Lisp_Object hooks, selection_symbol; | |
1161 | ||
c917a8de | 1162 | hooks = Vx_lost_selection_functions; |
8e713be6 | 1163 | selection_symbol = Fcar (Fcar (XCDR (rest))); |
118bd841 RS |
1164 | |
1165 | if (!EQ (hooks, Qunbound)) | |
1166 | { | |
1167 | for (; CONSP (hooks); hooks = Fcdr (hooks)) | |
1168 | call1 (Fcar (hooks), selection_symbol); | |
996b804d | 1169 | #if 0 /* See above */ |
3007ebfb | 1170 | redisplay_preserve_echo_area (22); |
996b804d | 1171 | #endif |
118bd841 | 1172 | } |
f3fbd155 | 1173 | XSETCDR (rest, Fcdr (XCDR (rest))); |
118bd841 RS |
1174 | break; |
1175 | } | |
1176 | } | |
ede4db72 | 1177 | \f |
ede4db72 RS |
1178 | /* Nonzero if any properties for DISPLAY and WINDOW |
1179 | are on the list of what we are waiting for. */ | |
1180 | ||
1181 | static int | |
1182 | waiting_for_other_props_on_window (display, window) | |
1183 | Display *display; | |
1184 | Window window; | |
1185 | { | |
1186 | struct prop_location *rest = property_change_wait_list; | |
1187 | while (rest) | |
1188 | if (rest->display == display && rest->window == window) | |
1189 | return 1; | |
1190 | else | |
1191 | rest = rest->next; | |
1192 | return 0; | |
1193 | } | |
1194 | ||
1195 | /* Add an entry to the list of property changes we are waiting for. | |
1196 | DISPLAY, WINDOW, PROPERTY, STATE describe what we will wait for. | |
1197 | The return value is a number that uniquely identifies | |
1198 | this awaited property change. */ | |
1199 | ||
d1f21a66 | 1200 | static struct prop_location * |
ede4db72 RS |
1201 | expect_property_change (display, window, property, state) |
1202 | Display *display; | |
1203 | Window window; | |
6c070502 | 1204 | Atom property; |
ede4db72 RS |
1205 | int state; |
1206 | { | |
d9c0d4a3 | 1207 | struct prop_location *pl = (struct prop_location *) xmalloc (sizeof *pl); |
2f65feb6 | 1208 | pl->identifier = ++prop_location_identifier; |
ede4db72 RS |
1209 | pl->display = display; |
1210 | pl->window = window; | |
1211 | pl->property = property; | |
1212 | pl->desired_state = state; | |
1213 | pl->next = property_change_wait_list; | |
d1f21a66 | 1214 | pl->arrived = 0; |
ede4db72 | 1215 | property_change_wait_list = pl; |
d1f21a66 | 1216 | return pl; |
ede4db72 RS |
1217 | } |
1218 | ||
1219 | /* Delete an entry from the list of property changes we are waiting for. | |
2f65feb6 | 1220 | IDENTIFIER is the number that uniquely identifies the entry. */ |
ede4db72 RS |
1221 | |
1222 | static void | |
d1f21a66 RS |
1223 | unexpect_property_change (location) |
1224 | struct prop_location *location; | |
ede4db72 RS |
1225 | { |
1226 | struct prop_location *prev = 0, *rest = property_change_wait_list; | |
1227 | while (rest) | |
1228 | { | |
d1f21a66 | 1229 | if (rest == location) |
ede4db72 RS |
1230 | { |
1231 | if (prev) | |
1232 | prev->next = rest->next; | |
1233 | else | |
1234 | property_change_wait_list = rest->next; | |
4feb31b2 | 1235 | xfree (rest); |
ede4db72 RS |
1236 | return; |
1237 | } | |
1238 | prev = rest; | |
1239 | rest = rest->next; | |
1240 | } | |
1241 | } | |
1242 | ||
2f65feb6 RS |
1243 | /* Remove the property change expectation element for IDENTIFIER. */ |
1244 | ||
1245 | static Lisp_Object | |
dd0fe424 KS |
1246 | wait_for_property_change_unwind (loc) |
1247 | Lisp_Object loc; | |
2f65feb6 | 1248 | { |
dd0fe424 KS |
1249 | struct prop_location *location = XSAVE_VALUE (loc)->pointer; |
1250 | ||
1251 | unexpect_property_change (location); | |
1252 | if (location == property_change_reply_object) | |
1253 | property_change_reply_object = 0; | |
ab552306 | 1254 | return Qnil; |
2f65feb6 RS |
1255 | } |
1256 | ||
ede4db72 | 1257 | /* Actually wait for a property change. |
2f65feb6 | 1258 | IDENTIFIER should be the value that expect_property_change returned. */ |
ede4db72 RS |
1259 | |
1260 | static void | |
d1f21a66 RS |
1261 | wait_for_property_change (location) |
1262 | struct prop_location *location; | |
ede4db72 | 1263 | { |
2f65feb6 | 1264 | int secs, usecs; |
aed13378 | 1265 | int count = SPECPDL_INDEX (); |
d1f21a66 | 1266 | |
dd0fe424 KS |
1267 | if (property_change_reply_object) |
1268 | abort (); | |
2f65feb6 RS |
1269 | |
1270 | /* Make sure to do unexpect_property_change if we quit or err. */ | |
dd0fe424 KS |
1271 | record_unwind_protect (wait_for_property_change_unwind, |
1272 | make_save_value (location, 0)); | |
2f65feb6 | 1273 | |
f3fbd155 | 1274 | XSETCAR (property_change_reply, Qnil); |
afe1529d | 1275 | property_change_reply_object = location; |
dd0fe424 | 1276 | |
afe1529d RS |
1277 | /* If the event we are waiting for arrives beyond here, it will set |
1278 | property_change_reply, because property_change_reply_object says so. */ | |
d1f21a66 RS |
1279 | if (! location->arrived) |
1280 | { | |
d1f21a66 RS |
1281 | secs = x_selection_timeout / 1000; |
1282 | usecs = (x_selection_timeout % 1000) * 1000; | |
d9c0d4a3 | 1283 | TRACE2 (" Waiting %d secs, %d usecs", secs, usecs); |
d64b707c KS |
1284 | wait_reading_process_output (secs, usecs, 0, 0, |
1285 | property_change_reply, NULL, 0); | |
d1f21a66 | 1286 | |
8e713be6 | 1287 | if (NILP (XCAR (property_change_reply))) |
d9c0d4a3 GM |
1288 | { |
1289 | TRACE0 (" Timed out"); | |
1290 | error ("Timed out waiting for property-notify event"); | |
1291 | } | |
d1f21a66 | 1292 | } |
2f65feb6 RS |
1293 | |
1294 | unbind_to (count, Qnil); | |
ede4db72 RS |
1295 | } |
1296 | ||
1297 | /* Called from XTread_socket in response to a PropertyNotify event. */ | |
1298 | ||
1299 | void | |
1300 | x_handle_property_notify (event) | |
1301 | XPropertyEvent *event; | |
1302 | { | |
1303 | struct prop_location *prev = 0, *rest = property_change_wait_list; | |
d9c0d4a3 | 1304 | |
ede4db72 RS |
1305 | while (rest) |
1306 | { | |
dd0fe424 KS |
1307 | if (!rest->arrived |
1308 | && rest->property == event->atom | |
ede4db72 RS |
1309 | && rest->window == event->window |
1310 | && rest->display == event->display | |
1311 | && rest->desired_state == event->state) | |
1312 | { | |
d9c0d4a3 GM |
1313 | TRACE2 ("Expected %s of property %s", |
1314 | (event->state == PropertyDelete ? "deletion" : "change"), | |
1315 | XGetAtomName (event->display, event->atom)); | |
ede4db72 | 1316 | |
d1f21a66 RS |
1317 | rest->arrived = 1; |
1318 | ||
ede4db72 RS |
1319 | /* If this is the one wait_for_property_change is waiting for, |
1320 | tell it to wake up. */ | |
d1f21a66 | 1321 | if (rest == property_change_reply_object) |
f3fbd155 | 1322 | XSETCAR (property_change_reply, Qt); |
ede4db72 | 1323 | |
ede4db72 RS |
1324 | return; |
1325 | } | |
1b65481e | 1326 | |
ede4db72 RS |
1327 | prev = rest; |
1328 | rest = rest->next; | |
1329 | } | |
ede4db72 RS |
1330 | } |
1331 | ||
1332 | ||
1333 | \f | |
1334 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1335 | ||
1336 | static Lisp_Object | |
1337 | fetch_multiple_target (event) | |
1338 | XSelectionRequestEvent *event; | |
1339 | { | |
1340 | Display *display = event->display; | |
5d0ba25b | 1341 | Window window = event->requestor; |
ede4db72 RS |
1342 | Atom target = event->target; |
1343 | Atom selection_atom = event->selection; | |
1344 | int result; | |
1345 | ||
1346 | return | |
1347 | Fcons (QMULTIPLE, | |
1348 | x_get_window_property_as_lisp_data (display, window, target, | |
1349 | QMULTIPLE, selection_atom)); | |
1350 | } | |
1351 | ||
1352 | static Lisp_Object | |
1353 | copy_multiple_data (obj) | |
1354 | Lisp_Object obj; | |
1355 | { | |
1356 | Lisp_Object vec; | |
1357 | int i; | |
1358 | int size; | |
1359 | if (CONSP (obj)) | |
8e713be6 | 1360 | return Fcons (XCAR (obj), copy_multiple_data (XCDR (obj))); |
1b65481e | 1361 | |
b7826503 | 1362 | CHECK_VECTOR (obj); |
ede4db72 RS |
1363 | vec = Fmake_vector (size = XVECTOR (obj)->size, Qnil); |
1364 | for (i = 0; i < size; i++) | |
1365 | { | |
1366 | Lisp_Object vec2 = XVECTOR (obj)->contents [i]; | |
b7826503 | 1367 | CHECK_VECTOR (vec2); |
ede4db72 RS |
1368 | if (XVECTOR (vec2)->size != 2) |
1369 | /* ??? Confusing error message */ | |
4d30ce50 | 1370 | signal_error ("Vectors must be of length 2", vec2); |
ede4db72 RS |
1371 | XVECTOR (vec)->contents [i] = Fmake_vector (2, Qnil); |
1372 | XVECTOR (XVECTOR (vec)->contents [i])->contents [0] | |
1373 | = XVECTOR (vec2)->contents [0]; | |
1374 | XVECTOR (XVECTOR (vec)->contents [i])->contents [1] | |
1375 | = XVECTOR (vec2)->contents [1]; | |
1376 | } | |
1377 | return vec; | |
1378 | } | |
1379 | ||
1380 | #endif | |
1381 | ||
1382 | \f | |
1383 | /* Variables for communication with x_handle_selection_notify. */ | |
1384 | static Atom reading_which_selection; | |
1385 | static Lisp_Object reading_selection_reply; | |
1386 | static Window reading_selection_window; | |
1387 | ||
1388 | /* Do protocol to read selection-data from the server. | |
1389 | Converts this to Lisp data and returns it. */ | |
1390 | ||
1391 | static Lisp_Object | |
3a42401d JD |
1392 | x_get_foreign_selection (selection_symbol, target_type, time_stamp) |
1393 | Lisp_Object selection_symbol, target_type, time_stamp; | |
ede4db72 | 1394 | { |
378c33ca | 1395 | struct frame *sf = SELECTED_FRAME (); |
428a555e KL |
1396 | Window requestor_window; |
1397 | Display *display; | |
1398 | struct x_display_info *dpyinfo; | |
5d0ba25b | 1399 | Time requestor_time = last_event_timestamp; |
428a555e KL |
1400 | Atom target_property; |
1401 | Atom selection_atom; | |
ede4db72 | 1402 | Atom type_atom; |
80da0190 | 1403 | int secs, usecs; |
c525d842 | 1404 | int count = SPECPDL_INDEX (); |
55b2d45d | 1405 | Lisp_Object frame; |
ede4db72 | 1406 | |
428a555e KL |
1407 | if (! FRAME_X_P (sf)) |
1408 | return Qnil; | |
1409 | ||
1410 | requestor_window = FRAME_X_WINDOW (sf); | |
1411 | display = FRAME_X_DISPLAY (sf); | |
1412 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
1413 | target_property = dpyinfo->Xatom_EMACS_TMP; | |
1414 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection_symbol); | |
1415 | ||
ede4db72 | 1416 | if (CONSP (target_type)) |
8e713be6 | 1417 | type_atom = symbol_to_x_atom (dpyinfo, display, XCAR (target_type)); |
ede4db72 | 1418 | else |
5c3a351a | 1419 | type_atom = symbol_to_x_atom (dpyinfo, display, target_type); |
ede4db72 | 1420 | |
3a42401d JD |
1421 | if (! NILP (time_stamp)) |
1422 | { | |
1423 | if (CONSP (time_stamp)) | |
1424 | requestor_time = (Time) cons_to_long (time_stamp); | |
1425 | else if (INTEGERP (time_stamp)) | |
1426 | requestor_time = (Time) XUINT (time_stamp); | |
1427 | else if (FLOATP (time_stamp)) | |
ff59904a | 1428 | requestor_time = (Time) XFLOAT_DATA (time_stamp); |
3a42401d JD |
1429 | else |
1430 | error ("TIME_STAMP must be cons or number"); | |
1431 | } | |
1432 | ||
ede4db72 | 1433 | BLOCK_INPUT; |
1b65481e | 1434 | |
c525d842 CY |
1435 | /* The protected block contains wait_reading_process_output, which |
1436 | can run random lisp code (process handlers) or signal. | |
1437 | Therefore, we put the x_uncatch_errors call in an unwind. */ | |
1438 | record_unwind_protect (x_catch_errors_unwind, Qnil); | |
9ba8e10d | 1439 | x_catch_errors (display); |
1b65481e | 1440 | |
d9c0d4a3 GM |
1441 | TRACE2 ("Get selection %s, type %s", |
1442 | XGetAtomName (display, type_atom), | |
1443 | XGetAtomName (display, target_property)); | |
1444 | ||
ede4db72 | 1445 | XConvertSelection (display, selection_atom, type_atom, target_property, |
5d0ba25b | 1446 | requestor_window, requestor_time); |
5c3a351a | 1447 | XFlush (display); |
ede4db72 RS |
1448 | |
1449 | /* Prepare to block until the reply has been read. */ | |
5d0ba25b | 1450 | reading_selection_window = requestor_window; |
ede4db72 | 1451 | reading_which_selection = selection_atom; |
f3fbd155 | 1452 | XSETCAR (reading_selection_reply, Qnil); |
55b2d45d RS |
1453 | |
1454 | frame = some_frame_on_display (dpyinfo); | |
1455 | ||
1456 | /* If the display no longer has frames, we can't expect | |
1457 | to get many more selection requests from it, so don't | |
1458 | bother trying to queue them. */ | |
1459 | if (!NILP (frame)) | |
1460 | { | |
dd0fe424 | 1461 | x_start_queuing_selection_requests (); |
55b2d45d RS |
1462 | |
1463 | record_unwind_protect (queue_selection_requests_unwind, | |
dd0fe424 | 1464 | Qnil); |
55b2d45d | 1465 | } |
ede4db72 RS |
1466 | UNBLOCK_INPUT; |
1467 | ||
80da0190 RS |
1468 | /* This allows quits. Also, don't wait forever. */ |
1469 | secs = x_selection_timeout / 1000; | |
1470 | usecs = (x_selection_timeout % 1000) * 1000; | |
d9c0d4a3 | 1471 | TRACE1 (" Start waiting %d secs for SelectionNotify", secs); |
d64b707c KS |
1472 | wait_reading_process_output (secs, usecs, 0, 0, |
1473 | reading_selection_reply, NULL, 0); | |
d9c0d4a3 | 1474 | TRACE1 (" Got event = %d", !NILP (XCAR (reading_selection_reply))); |
ede4db72 | 1475 | |
7c6b2ea4 | 1476 | BLOCK_INPUT; |
c525d842 CY |
1477 | if (x_had_errors_p (display)) |
1478 | error ("Cannot get selection"); | |
1479 | /* This calls x_uncatch_errors. */ | |
9ba8e10d | 1480 | unbind_to (count, Qnil); |
7c6b2ea4 RS |
1481 | UNBLOCK_INPUT; |
1482 | ||
8e713be6 | 1483 | if (NILP (XCAR (reading_selection_reply))) |
606140dd | 1484 | error ("Timed out waiting for reply from selection owner"); |
8e713be6 | 1485 | if (EQ (XCAR (reading_selection_reply), Qlambda)) |
d5db4077 | 1486 | error ("No `%s' selection", SDATA (SYMBOL_NAME (selection_symbol))); |
ede4db72 RS |
1487 | |
1488 | /* Otherwise, the selection is waiting for us on the requested property. */ | |
1489 | return | |
5d0ba25b | 1490 | x_get_window_property_as_lisp_data (display, requestor_window, |
ede4db72 RS |
1491 | target_property, target_type, |
1492 | selection_atom); | |
1493 | } | |
1494 | \f | |
1495 | /* Subroutines of x_get_window_property_as_lisp_data */ | |
1496 | ||
4feb31b2 | 1497 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1498 | |
ede4db72 RS |
1499 | static void |
1500 | x_get_window_property (display, window, property, data_ret, bytes_ret, | |
1501 | actual_type_ret, actual_format_ret, actual_size_ret, | |
1502 | delete_p) | |
1503 | Display *display; | |
1504 | Window window; | |
1505 | Atom property; | |
1506 | unsigned char **data_ret; | |
1507 | int *bytes_ret; | |
1508 | Atom *actual_type_ret; | |
1509 | int *actual_format_ret; | |
1510 | unsigned long *actual_size_ret; | |
1511 | int delete_p; | |
1512 | { | |
1513 | int total_size; | |
1514 | unsigned long bytes_remaining; | |
1515 | int offset = 0; | |
1516 | unsigned char *tmp_data = 0; | |
1517 | int result; | |
1518 | int buffer_size = SELECTION_QUANTUM (display); | |
1b65481e | 1519 | |
d9c0d4a3 GM |
1520 | if (buffer_size > MAX_SELECTION_QUANTUM) |
1521 | buffer_size = MAX_SELECTION_QUANTUM; | |
1b65481e | 1522 | |
ede4db72 | 1523 | BLOCK_INPUT; |
1b65481e | 1524 | |
ede4db72 RS |
1525 | /* First probe the thing to find out how big it is. */ |
1526 | result = XGetWindowProperty (display, window, property, | |
137edb72 | 1527 | 0L, 0L, False, AnyPropertyType, |
ede4db72 RS |
1528 | actual_type_ret, actual_format_ret, |
1529 | actual_size_ret, | |
1530 | &bytes_remaining, &tmp_data); | |
ede4db72 RS |
1531 | if (result != Success) |
1532 | { | |
2f65feb6 | 1533 | UNBLOCK_INPUT; |
ede4db72 RS |
1534 | *data_ret = 0; |
1535 | *bytes_ret = 0; | |
1536 | return; | |
1537 | } | |
1b65481e | 1538 | |
0158abbc RS |
1539 | /* This was allocated by Xlib, so use XFree. */ |
1540 | XFree ((char *) tmp_data); | |
1b65481e | 1541 | |
ede4db72 RS |
1542 | if (*actual_type_ret == None || *actual_format_ret == 0) |
1543 | { | |
2f65feb6 | 1544 | UNBLOCK_INPUT; |
ede4db72 RS |
1545 | return; |
1546 | } | |
1547 | ||
1548 | total_size = bytes_remaining + 1; | |
1549 | *data_ret = (unsigned char *) xmalloc (total_size); | |
1b65481e | 1550 | |
2a1a4c9d | 1551 | /* Now read, until we've gotten it all. */ |
ede4db72 RS |
1552 | while (bytes_remaining) |
1553 | { | |
d9c0d4a3 | 1554 | #ifdef TRACE_SELECTION |
ede4db72 RS |
1555 | int last = bytes_remaining; |
1556 | #endif | |
1557 | result | |
1558 | = XGetWindowProperty (display, window, property, | |
137edb72 | 1559 | (long)offset/4, (long)buffer_size/4, |
2f65feb6 | 1560 | False, |
ede4db72 RS |
1561 | AnyPropertyType, |
1562 | actual_type_ret, actual_format_ret, | |
1563 | actual_size_ret, &bytes_remaining, &tmp_data); | |
d9c0d4a3 GM |
1564 | |
1565 | TRACE2 ("Read %ld bytes from property %s", | |
1566 | last - bytes_remaining, | |
1567 | XGetAtomName (display, property)); | |
1568 | ||
ede4db72 RS |
1569 | /* If this doesn't return Success at this point, it means that |
1570 | some clod deleted the selection while we were in the midst of | |
d9c0d4a3 GM |
1571 | reading it. Deal with that, I guess.... */ |
1572 | if (result != Success) | |
1573 | break; | |
e22cf39c JD |
1574 | |
1575 | /* The man page for XGetWindowProperty says: | |
1576 | "If the returned format is 32, the returned data is represented | |
1577 | as a long array and should be cast to that type to obtain the | |
1578 | elements." | |
1579 | This applies even if long is more than 32 bits, the X library | |
1580 | converts from 32 bit elements received from the X server to long | |
1581 | and passes the long array to us. Thus, for that case bcopy can not | |
1582 | be used. We convert to a 32 bit type here, because so much code | |
1583 | assume on that. | |
1584 | ||
1585 | The bytes and offsets passed to XGetWindowProperty refers to the | |
1586 | property and those are indeed in 32 bit quantities if format is 32. */ | |
1587 | ||
1588 | if (*actual_format_ret == 32 && *actual_format_ret < BITS_PER_LONG) | |
1589 | { | |
1590 | unsigned long i; | |
1591 | int *idata = (int *) ((*data_ret) + offset); | |
1592 | long *ldata = (long *) tmp_data; | |
1593 | ||
1594 | for (i = 0; i < *actual_size_ret; ++i) | |
1595 | { | |
1596 | idata[i]= (int) ldata[i]; | |
1597 | offset += 4; | |
1598 | } | |
1599 | } | |
1600 | else | |
1601 | { | |
1602 | *actual_size_ret *= *actual_format_ret / 8; | |
1603 | bcopy (tmp_data, (*data_ret) + offset, *actual_size_ret); | |
1604 | offset += *actual_size_ret; | |
1605 | } | |
1b65481e | 1606 | |
0158abbc RS |
1607 | /* This was allocated by Xlib, so use XFree. */ |
1608 | XFree ((char *) tmp_data); | |
ede4db72 | 1609 | } |
2f65feb6 | 1610 | |
5c3a351a | 1611 | XFlush (display); |
ede4db72 RS |
1612 | UNBLOCK_INPUT; |
1613 | *bytes_ret = offset; | |
1614 | } | |
1615 | \f | |
4feb31b2 | 1616 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1617 | |
ede4db72 RS |
1618 | static void |
1619 | receive_incremental_selection (display, window, property, target_type, | |
1620 | min_size_bytes, data_ret, size_bytes_ret, | |
1621 | type_ret, format_ret, size_ret) | |
1622 | Display *display; | |
1623 | Window window; | |
1624 | Atom property; | |
1625 | Lisp_Object target_type; /* for error messages only */ | |
1626 | unsigned int min_size_bytes; | |
1627 | unsigned char **data_ret; | |
1628 | int *size_bytes_ret; | |
1629 | Atom *type_ret; | |
1630 | unsigned long *size_ret; | |
1631 | int *format_ret; | |
1632 | { | |
1633 | int offset = 0; | |
d1f21a66 | 1634 | struct prop_location *wait_object; |
ede4db72 RS |
1635 | *size_bytes_ret = min_size_bytes; |
1636 | *data_ret = (unsigned char *) xmalloc (*size_bytes_ret); | |
d9c0d4a3 GM |
1637 | |
1638 | TRACE1 ("Read %d bytes incrementally", min_size_bytes); | |
2f65feb6 RS |
1639 | |
1640 | /* At this point, we have read an INCR property. | |
1641 | Delete the property to ack it. | |
1642 | (But first, prepare to receive the next event in this handshake.) | |
ede4db72 RS |
1643 | |
1644 | Now, we must loop, waiting for the sending window to put a value on | |
1645 | that property, then reading the property, then deleting it to ack. | |
1646 | We are done when the sender places a property of length 0. | |
1647 | */ | |
2f65feb6 RS |
1648 | BLOCK_INPUT; |
1649 | XSelectInput (display, window, STANDARD_EVENT_SET | PropertyChangeMask); | |
d9c0d4a3 | 1650 | TRACE1 (" Delete property %s", |
dd0fe424 | 1651 | SDATA (SYMBOL_NAME (x_atom_to_symbol (display, property)))); |
2f65feb6 | 1652 | XDeleteProperty (display, window, property); |
d9c0d4a3 | 1653 | TRACE1 (" Expect new value of property %s", |
dd0fe424 | 1654 | SDATA (SYMBOL_NAME (x_atom_to_symbol (display, property)))); |
d1f21a66 RS |
1655 | wait_object = expect_property_change (display, window, property, |
1656 | PropertyNewValue); | |
5c3a351a | 1657 | XFlush (display); |
2f65feb6 RS |
1658 | UNBLOCK_INPUT; |
1659 | ||
ede4db72 RS |
1660 | while (1) |
1661 | { | |
1662 | unsigned char *tmp_data; | |
1663 | int tmp_size_bytes; | |
d9c0d4a3 GM |
1664 | |
1665 | TRACE0 (" Wait for property change"); | |
d1f21a66 | 1666 | wait_for_property_change (wait_object); |
1b65481e | 1667 | |
ede4db72 | 1668 | /* expect it again immediately, because x_get_window_property may |
2a1a4c9d | 1669 | .. no it won't, I don't get it. |
d9c0d4a3 GM |
1670 | .. Ok, I get it now, the Xt code that implements INCR is broken. */ |
1671 | TRACE0 (" Get property value"); | |
ede4db72 RS |
1672 | x_get_window_property (display, window, property, |
1673 | &tmp_data, &tmp_size_bytes, | |
1674 | type_ret, format_ret, size_ret, 1); | |
1675 | ||
d9c0d4a3 GM |
1676 | TRACE1 (" Read increment of %d bytes", tmp_size_bytes); |
1677 | ||
ede4db72 RS |
1678 | if (tmp_size_bytes == 0) /* we're done */ |
1679 | { | |
d9c0d4a3 GM |
1680 | TRACE0 ("Done reading incrementally"); |
1681 | ||
2f65feb6 RS |
1682 | if (! waiting_for_other_props_on_window (display, window)) |
1683 | XSelectInput (display, window, STANDARD_EVENT_SET); | |
4feb31b2 | 1684 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1685 | calls xmalloc itself. */ |
4feb31b2 | 1686 | if (tmp_data) xfree (tmp_data); |
ede4db72 RS |
1687 | break; |
1688 | } | |
2f65feb6 RS |
1689 | |
1690 | BLOCK_INPUT; | |
d9c0d4a3 GM |
1691 | TRACE1 (" ACK by deleting property %s", |
1692 | XGetAtomName (display, property)); | |
2f65feb6 | 1693 | XDeleteProperty (display, window, property); |
d1f21a66 RS |
1694 | wait_object = expect_property_change (display, window, property, |
1695 | PropertyNewValue); | |
5c3a351a | 1696 | XFlush (display); |
2f65feb6 RS |
1697 | UNBLOCK_INPUT; |
1698 | ||
ede4db72 RS |
1699 | if (*size_bytes_ret < offset + tmp_size_bytes) |
1700 | { | |
ede4db72 RS |
1701 | *size_bytes_ret = offset + tmp_size_bytes; |
1702 | *data_ret = (unsigned char *) xrealloc (*data_ret, *size_bytes_ret); | |
1703 | } | |
1b65481e | 1704 | |
018cfa07 | 1705 | bcopy (tmp_data, (*data_ret) + offset, tmp_size_bytes); |
ede4db72 | 1706 | offset += tmp_size_bytes; |
1b65481e | 1707 | |
4feb31b2 | 1708 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1709 | calls xmalloc itself. */ |
4feb31b2 | 1710 | xfree (tmp_data); |
ede4db72 RS |
1711 | } |
1712 | } | |
d9c0d4a3 | 1713 | |
ede4db72 RS |
1714 | \f |
1715 | /* Once a requested selection is "ready" (we got a SelectionNotify event), | |
1716 | fetch value from property PROPERTY of X window WINDOW on display DISPLAY. | |
1717 | TARGET_TYPE and SELECTION_ATOM are used in error message if this fails. */ | |
1718 | ||
1719 | static Lisp_Object | |
1720 | x_get_window_property_as_lisp_data (display, window, property, target_type, | |
1721 | selection_atom) | |
1722 | Display *display; | |
1723 | Window window; | |
1724 | Atom property; | |
1725 | Lisp_Object target_type; /* for error messages only */ | |
1726 | Atom selection_atom; /* for error messages only */ | |
1727 | { | |
1728 | Atom actual_type; | |
1729 | int actual_format; | |
1730 | unsigned long actual_size; | |
1731 | unsigned char *data = 0; | |
1732 | int bytes = 0; | |
1733 | Lisp_Object val; | |
5c3a351a | 1734 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 | 1735 | |
d9c0d4a3 GM |
1736 | TRACE0 ("Reading selection data"); |
1737 | ||
ede4db72 RS |
1738 | x_get_window_property (display, window, property, &data, &bytes, |
1739 | &actual_type, &actual_format, &actual_size, 1); | |
1740 | if (! data) | |
1741 | { | |
1742 | int there_is_a_selection_owner; | |
1743 | BLOCK_INPUT; | |
1744 | there_is_a_selection_owner | |
1745 | = XGetSelectionOwner (display, selection_atom); | |
1746 | UNBLOCK_INPUT; | |
4d30ce50 KS |
1747 | if (there_is_a_selection_owner) |
1748 | signal_error ("Selection owner couldn't convert", | |
1749 | actual_type | |
1750 | ? list2 (target_type, | |
1751 | x_atom_to_symbol (display, actual_type)) | |
1752 | : target_type); | |
1753 | else | |
1754 | signal_error ("No selection", | |
1755 | x_atom_to_symbol (display, selection_atom)); | |
ede4db72 | 1756 | } |
1b65481e | 1757 | |
5c3a351a | 1758 | if (actual_type == dpyinfo->Xatom_INCR) |
ede4db72 RS |
1759 | { |
1760 | /* That wasn't really the data, just the beginning. */ | |
1761 | ||
1762 | unsigned int min_size_bytes = * ((unsigned int *) data); | |
1763 | BLOCK_INPUT; | |
4feb31b2 | 1764 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1765 | calls xmalloc itself. */ |
4feb31b2 | 1766 | xfree ((char *) data); |
ede4db72 RS |
1767 | UNBLOCK_INPUT; |
1768 | receive_incremental_selection (display, window, property, target_type, | |
1769 | min_size_bytes, &data, &bytes, | |
1770 | &actual_type, &actual_format, | |
1771 | &actual_size); | |
1772 | } | |
1773 | ||
2f65feb6 | 1774 | BLOCK_INPUT; |
d9c0d4a3 | 1775 | TRACE1 (" Delete property %s", XGetAtomName (display, property)); |
2f65feb6 | 1776 | XDeleteProperty (display, window, property); |
5c3a351a | 1777 | XFlush (display); |
2f65feb6 RS |
1778 | UNBLOCK_INPUT; |
1779 | ||
ede4db72 RS |
1780 | /* It's been read. Now convert it to a lisp object in some semi-rational |
1781 | manner. */ | |
1782 | val = selection_data_to_lisp_data (display, data, bytes, | |
1783 | actual_type, actual_format); | |
1b65481e | 1784 | |
4feb31b2 | 1785 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1786 | calls xmalloc itself. */ |
4feb31b2 | 1787 | xfree ((char *) data); |
ede4db72 RS |
1788 | return val; |
1789 | } | |
1790 | \f | |
1791 | /* These functions convert from the selection data read from the server into | |
1792 | something that we can use from Lisp, and vice versa. | |
1793 | ||
1794 | Type: Format: Size: Lisp Type: | |
1795 | ----- ------- ----- ----------- | |
1796 | * 8 * String | |
1797 | ATOM 32 1 Symbol | |
1798 | ATOM 32 > 1 Vector of Symbols | |
1799 | * 16 1 Integer | |
1800 | * 16 > 1 Vector of Integers | |
1801 | * 32 1 if <=16 bits: Integer | |
1802 | if > 16 bits: Cons of top16, bot16 | |
1803 | * 32 > 1 Vector of the above | |
1804 | ||
1805 | When converting a Lisp number to C, it is assumed to be of format 16 if | |
1806 | it is an integer, and of format 32 if it is a cons of two integers. | |
1807 | ||
1808 | When converting a vector of numbers from Lisp to C, it is assumed to be | |
1809 | of format 16 if every element in the vector is an integer, and is assumed | |
1810 | to be of format 32 if any element is a cons of two integers. | |
1811 | ||
1812 | When converting an object to C, it may be of the form (SYMBOL . <data>) | |
1813 | where SYMBOL is what we should claim that the type is. Format and | |
b8d6f4af JD |
1814 | representation are as above. |
1815 | ||
1816 | Important: When format is 32, data should contain an array of int, | |
1817 | not an array of long as the X library returns. This makes a difference | |
1818 | when sizeof(long) != sizeof(int). */ | |
ede4db72 RS |
1819 | |
1820 | ||
1821 | ||
1822 | static Lisp_Object | |
1823 | selection_data_to_lisp_data (display, data, size, type, format) | |
1824 | Display *display; | |
1825 | unsigned char *data; | |
1826 | Atom type; | |
1827 | int size, format; | |
1828 | { | |
5c3a351a | 1829 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 | 1830 | |
5c3a351a | 1831 | if (type == dpyinfo->Xatom_NULL) |
ede4db72 RS |
1832 | return QNULL; |
1833 | ||
1834 | /* Convert any 8-bit data to a string, for compactness. */ | |
1835 | else if (format == 8) | |
e6c7c988 | 1836 | { |
e57ad4d8 KH |
1837 | Lisp_Object str, lispy_type; |
1838 | ||
1839 | str = make_unibyte_string ((char *) data, size); | |
1840 | /* Indicate that this string is from foreign selection by a text | |
1841 | property `foreign-selection' so that the caller of | |
1842 | x-get-selection-internal (usually x-get-selection) can know | |
1843 | that the string must be decode. */ | |
1844 | if (type == dpyinfo->Xatom_COMPOUND_TEXT) | |
1845 | lispy_type = QCOMPOUND_TEXT; | |
1846 | else if (type == dpyinfo->Xatom_UTF8_STRING) | |
1847 | lispy_type = QUTF8_STRING; | |
e6c7c988 | 1848 | else |
e57ad4d8 KH |
1849 | lispy_type = QSTRING; |
1850 | Fput_text_property (make_number (0), make_number (size), | |
1851 | Qforeign_selection, lispy_type, str); | |
e6c7c988 KH |
1852 | return str; |
1853 | } | |
ede4db72 RS |
1854 | /* Convert a single atom to a Lisp_Symbol. Convert a set of atoms to |
1855 | a vector of symbols. | |
1856 | */ | |
1857 | else if (type == XA_ATOM) | |
1858 | { | |
1859 | int i; | |
b8d6f4af JD |
1860 | /* On a 64 bit machine sizeof(Atom) == sizeof(long) == 8. |
1861 | But the callers of these function has made sure the data for | |
1862 | format == 32 is an array of int. Thus, use int instead | |
1863 | of Atom. */ | |
1864 | int *idata = (int *) data; | |
1865 | ||
1866 | if (size == sizeof (int)) | |
1867 | return x_atom_to_symbol (display, (Atom) idata[0]); | |
ede4db72 RS |
1868 | else |
1869 | { | |
b8d6f4af | 1870 | Lisp_Object v = Fmake_vector (make_number (size / sizeof (int)), |
e607a484 | 1871 | make_number (0)); |
b8d6f4af | 1872 | for (i = 0; i < size / sizeof (int); i++) |
e607a484 | 1873 | Faset (v, make_number (i), |
b8d6f4af | 1874 | x_atom_to_symbol (display, (Atom) idata[i])); |
ede4db72 RS |
1875 | return v; |
1876 | } | |
1877 | } | |
1878 | ||
1ad08acd RS |
1879 | /* Convert a single 16-bit number or a small 32-bit number to a Lisp_Int. |
1880 | If the number is 32 bits and won't fit in a Lisp_Int, | |
1881 | convert it to a cons of integers, 16 bits in each half. | |
ede4db72 | 1882 | */ |
2f51feb8 AS |
1883 | else if (format == 32 && size == sizeof (int)) |
1884 | return long_to_cons (((unsigned int *) data) [0]); | |
ede4db72 RS |
1885 | else if (format == 16 && size == sizeof (short)) |
1886 | return make_number ((int) (((unsigned short *) data) [0])); | |
1887 | ||
1888 | /* Convert any other kind of data to a vector of numbers, represented | |
1889 | as above (as an integer, or a cons of two 16 bit integers.) | |
1890 | */ | |
1891 | else if (format == 16) | |
1892 | { | |
1893 | int i; | |
937a3875 RS |
1894 | Lisp_Object v; |
1895 | v = Fmake_vector (make_number (size / 2), make_number (0)); | |
1896 | for (i = 0; i < size / 2; i++) | |
ede4db72 RS |
1897 | { |
1898 | int j = (int) ((unsigned short *) data) [i]; | |
e607a484 | 1899 | Faset (v, make_number (i), make_number (j)); |
ede4db72 RS |
1900 | } |
1901 | return v; | |
1902 | } | |
1903 | else | |
1904 | { | |
1905 | int i; | |
e607a484 | 1906 | Lisp_Object v = Fmake_vector (make_number (size / 4), make_number (0)); |
ede4db72 RS |
1907 | for (i = 0; i < size / 4; i++) |
1908 | { | |
2f51feb8 | 1909 | unsigned int j = ((unsigned int *) data) [i]; |
e607a484 | 1910 | Faset (v, make_number (i), long_to_cons (j)); |
ede4db72 RS |
1911 | } |
1912 | return v; | |
1913 | } | |
1914 | } | |
1915 | ||
1916 | ||
4feb31b2 | 1917 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1918 | |
ede4db72 RS |
1919 | static void |
1920 | lisp_data_to_selection_data (display, obj, | |
aca39f42 RS |
1921 | data_ret, type_ret, size_ret, |
1922 | format_ret, nofree_ret) | |
ede4db72 RS |
1923 | Display *display; |
1924 | Lisp_Object obj; | |
1925 | unsigned char **data_ret; | |
1926 | Atom *type_ret; | |
1927 | unsigned int *size_ret; | |
1928 | int *format_ret; | |
aca39f42 | 1929 | int *nofree_ret; |
ede4db72 RS |
1930 | { |
1931 | Lisp_Object type = Qnil; | |
5c3a351a | 1932 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
aca39f42 RS |
1933 | |
1934 | *nofree_ret = 0; | |
1935 | ||
8e713be6 | 1936 | if (CONSP (obj) && SYMBOLP (XCAR (obj))) |
ede4db72 | 1937 | { |
8e713be6 KR |
1938 | type = XCAR (obj); |
1939 | obj = XCDR (obj); | |
1940 | if (CONSP (obj) && NILP (XCDR (obj))) | |
1941 | obj = XCAR (obj); | |
ede4db72 RS |
1942 | } |
1943 | ||
1944 | if (EQ (obj, QNULL) || (EQ (type, QNULL))) | |
1945 | { /* This is not the same as declining */ | |
1946 | *format_ret = 32; | |
1947 | *size_ret = 0; | |
1948 | *data_ret = 0; | |
1949 | type = QNULL; | |
1950 | } | |
1951 | else if (STRINGP (obj)) | |
1952 | { | |
1bd70c6e KH |
1953 | if (SCHARS (obj) < SBYTES (obj)) |
1954 | /* OBJ is a multibyte string containing a non-ASCII char. */ | |
4d30ce50 | 1955 | signal_error ("Non-ASCII string must be encoded in advance", obj); |
7b9ae523 | 1956 | if (NILP (type)) |
5109c8dd KH |
1957 | type = QSTRING; |
1958 | *format_ret = 8; | |
1959 | *size_ret = SBYTES (obj); | |
1960 | *data_ret = SDATA (obj); | |
1961 | *nofree_ret = 1; | |
ede4db72 RS |
1962 | } |
1963 | else if (SYMBOLP (obj)) | |
1964 | { | |
1965 | *format_ret = 32; | |
1966 | *size_ret = 1; | |
1967 | *data_ret = (unsigned char *) xmalloc (sizeof (Atom) + 1); | |
1968 | (*data_ret) [sizeof (Atom)] = 0; | |
5c3a351a | 1969 | (*(Atom **) data_ret) [0] = symbol_to_x_atom (dpyinfo, display, obj); |
ede4db72 RS |
1970 | if (NILP (type)) type = QATOM; |
1971 | } | |
7da64e5c | 1972 | else if (INTEGERP (obj) |
ede4db72 RS |
1973 | && XINT (obj) < 0xFFFF |
1974 | && XINT (obj) > -0xFFFF) | |
1975 | { | |
1976 | *format_ret = 16; | |
1977 | *size_ret = 1; | |
1978 | *data_ret = (unsigned char *) xmalloc (sizeof (short) + 1); | |
1979 | (*data_ret) [sizeof (short)] = 0; | |
1980 | (*(short **) data_ret) [0] = (short) XINT (obj); | |
1981 | if (NILP (type)) type = QINTEGER; | |
1982 | } | |
a87ed99c | 1983 | else if (INTEGERP (obj) |
8e713be6 KR |
1984 | || (CONSP (obj) && INTEGERP (XCAR (obj)) |
1985 | && (INTEGERP (XCDR (obj)) | |
1986 | || (CONSP (XCDR (obj)) | |
1987 | && INTEGERP (XCAR (XCDR (obj))))))) | |
ede4db72 RS |
1988 | { |
1989 | *format_ret = 32; | |
1990 | *size_ret = 1; | |
1991 | *data_ret = (unsigned char *) xmalloc (sizeof (long) + 1); | |
1992 | (*data_ret) [sizeof (long)] = 0; | |
1993 | (*(unsigned long **) data_ret) [0] = cons_to_long (obj); | |
1994 | if (NILP (type)) type = QINTEGER; | |
1995 | } | |
1996 | else if (VECTORP (obj)) | |
1997 | { | |
1998 | /* Lisp_Vectors may represent a set of ATOMs; | |
1999 | a set of 16 or 32 bit INTEGERs; | |
2000 | or a set of ATOM_PAIRs (represented as [[A1 A2] [A3 A4] ...] | |
2001 | */ | |
2002 | int i; | |
2003 | ||
2004 | if (SYMBOLP (XVECTOR (obj)->contents [0])) | |
2005 | /* This vector is an ATOM set */ | |
2006 | { | |
2007 | if (NILP (type)) type = QATOM; | |
2008 | *size_ret = XVECTOR (obj)->size; | |
2009 | *format_ret = 32; | |
2010 | *data_ret = (unsigned char *) xmalloc ((*size_ret) * sizeof (Atom)); | |
2011 | for (i = 0; i < *size_ret; i++) | |
2012 | if (SYMBOLP (XVECTOR (obj)->contents [i])) | |
2013 | (*(Atom **) data_ret) [i] | |
5c3a351a | 2014 | = symbol_to_x_atom (dpyinfo, display, XVECTOR (obj)->contents [i]); |
ede4db72 | 2015 | else |
4d30ce50 | 2016 | signal_error ("All elements of selection vector must have same type", obj); |
ede4db72 RS |
2017 | } |
2018 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
2019 | else if (VECTORP (XVECTOR (obj)->contents [0])) | |
2020 | /* This vector is an ATOM_PAIR set */ | |
2021 | { | |
2022 | if (NILP (type)) type = QATOM_PAIR; | |
2023 | *size_ret = XVECTOR (obj)->size; | |
2024 | *format_ret = 32; | |
2025 | *data_ret = (unsigned char *) | |
2026 | xmalloc ((*size_ret) * sizeof (Atom) * 2); | |
2027 | for (i = 0; i < *size_ret; i++) | |
2028 | if (VECTORP (XVECTOR (obj)->contents [i])) | |
2029 | { | |
2030 | Lisp_Object pair = XVECTOR (obj)->contents [i]; | |
2031 | if (XVECTOR (pair)->size != 2) | |
4d30ce50 KS |
2032 | signal_error ( |
2033 | "Elements of the vector must be vectors of exactly two elements", | |
2034 | pair); | |
1b65481e | 2035 | |
ede4db72 | 2036 | (*(Atom **) data_ret) [i * 2] |
5c3a351a RS |
2037 | = symbol_to_x_atom (dpyinfo, display, |
2038 | XVECTOR (pair)->contents [0]); | |
ede4db72 | 2039 | (*(Atom **) data_ret) [(i * 2) + 1] |
5c3a351a RS |
2040 | = symbol_to_x_atom (dpyinfo, display, |
2041 | XVECTOR (pair)->contents [1]); | |
ede4db72 RS |
2042 | } |
2043 | else | |
4d30ce50 KS |
2044 | signal_error ("All elements of the vector must be of the same type", |
2045 | obj); | |
1b65481e | 2046 | |
ede4db72 RS |
2047 | } |
2048 | #endif | |
2049 | else | |
2050 | /* This vector is an INTEGER set, or something like it */ | |
2051 | { | |
e22cf39c | 2052 | int data_size = 2; |
ede4db72 RS |
2053 | *size_ret = XVECTOR (obj)->size; |
2054 | if (NILP (type)) type = QINTEGER; | |
2055 | *format_ret = 16; | |
2056 | for (i = 0; i < *size_ret; i++) | |
2057 | if (CONSP (XVECTOR (obj)->contents [i])) | |
2058 | *format_ret = 32; | |
7da64e5c | 2059 | else if (!INTEGERP (XVECTOR (obj)->contents [i])) |
4d30ce50 KS |
2060 | signal_error (/* Qselection_error */ |
2061 | "Elements of selection vector must be integers or conses of integers", | |
2062 | obj); | |
ede4db72 | 2063 | |
e22cf39c JD |
2064 | /* Use sizeof(long) even if it is more than 32 bits. See comment |
2065 | in x_get_window_property and x_fill_property_data. */ | |
6e816df5 | 2066 | |
e22cf39c JD |
2067 | if (*format_ret == 32) data_size = sizeof(long); |
2068 | *data_ret = (unsigned char *) xmalloc (*size_ret * data_size); | |
ede4db72 RS |
2069 | for (i = 0; i < *size_ret; i++) |
2070 | if (*format_ret == 32) | |
2071 | (*((unsigned long **) data_ret)) [i] | |
2072 | = cons_to_long (XVECTOR (obj)->contents [i]); | |
2073 | else | |
2074 | (*((unsigned short **) data_ret)) [i] | |
2075 | = (unsigned short) cons_to_long (XVECTOR (obj)->contents [i]); | |
2076 | } | |
2077 | } | |
2078 | else | |
4d30ce50 | 2079 | signal_error (/* Qselection_error */ "Unrecognized selection data", obj); |
ede4db72 | 2080 | |
5c3a351a | 2081 | *type_ret = symbol_to_x_atom (dpyinfo, display, type); |
ede4db72 RS |
2082 | } |
2083 | ||
2084 | static Lisp_Object | |
2085 | clean_local_selection_data (obj) | |
2086 | Lisp_Object obj; | |
2087 | { | |
2088 | if (CONSP (obj) | |
8e713be6 KR |
2089 | && INTEGERP (XCAR (obj)) |
2090 | && CONSP (XCDR (obj)) | |
2091 | && INTEGERP (XCAR (XCDR (obj))) | |
2092 | && NILP (XCDR (XCDR (obj)))) | |
2093 | obj = Fcons (XCAR (obj), XCDR (obj)); | |
ede4db72 RS |
2094 | |
2095 | if (CONSP (obj) | |
8e713be6 KR |
2096 | && INTEGERP (XCAR (obj)) |
2097 | && INTEGERP (XCDR (obj))) | |
ede4db72 | 2098 | { |
8e713be6 KR |
2099 | if (XINT (XCAR (obj)) == 0) |
2100 | return XCDR (obj); | |
2101 | if (XINT (XCAR (obj)) == -1) | |
2102 | return make_number (- XINT (XCDR (obj))); | |
ede4db72 RS |
2103 | } |
2104 | if (VECTORP (obj)) | |
2105 | { | |
2106 | int i; | |
2107 | int size = XVECTOR (obj)->size; | |
2108 | Lisp_Object copy; | |
2109 | if (size == 1) | |
2110 | return clean_local_selection_data (XVECTOR (obj)->contents [0]); | |
e607a484 | 2111 | copy = Fmake_vector (make_number (size), Qnil); |
ede4db72 RS |
2112 | for (i = 0; i < size; i++) |
2113 | XVECTOR (copy)->contents [i] | |
2114 | = clean_local_selection_data (XVECTOR (obj)->contents [i]); | |
2115 | return copy; | |
2116 | } | |
2117 | return obj; | |
2118 | } | |
2119 | \f | |
2120 | /* Called from XTread_socket to handle SelectionNotify events. | |
606140dd KH |
2121 | If it's the selection we are waiting for, stop waiting |
2122 | by setting the car of reading_selection_reply to non-nil. | |
2123 | We store t there if the reply is successful, lambda if not. */ | |
ede4db72 RS |
2124 | |
2125 | void | |
2126 | x_handle_selection_notify (event) | |
2127 | XSelectionEvent *event; | |
2128 | { | |
5d0ba25b | 2129 | if (event->requestor != reading_selection_window) |
ede4db72 RS |
2130 | return; |
2131 | if (event->selection != reading_which_selection) | |
2132 | return; | |
2133 | ||
d9c0d4a3 | 2134 | TRACE0 ("Received SelectionNotify"); |
f3fbd155 KR |
2135 | XSETCAR (reading_selection_reply, |
2136 | (event->property != 0 ? Qt : Qlambda)); | |
ede4db72 RS |
2137 | } |
2138 | ||
2139 | \f | |
a0d76c27 | 2140 | DEFUN ("x-own-selection-internal", Fx_own_selection_internal, |
8c1a1077 PJ |
2141 | Sx_own_selection_internal, 2, 2, 0, |
2142 | doc: /* Assert an X selection of the given TYPE with the given VALUE. | |
2143 | TYPE is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2144 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2145 | VALUE is typically a string, or a cons of two markers, but may be | |
2146 | anything that the functions on `selection-converter-alist' know about. */) | |
2147 | (selection_name, selection_value) | |
ede4db72 RS |
2148 | Lisp_Object selection_name, selection_value; |
2149 | { | |
703e0710 | 2150 | check_x (); |
b7826503 | 2151 | CHECK_SYMBOL (selection_name); |
253b2298 | 2152 | if (NILP (selection_value)) error ("SELECTION-VALUE may not be nil"); |
ede4db72 RS |
2153 | x_own_selection (selection_name, selection_value); |
2154 | return selection_value; | |
2155 | } | |
2156 | ||
2157 | ||
2158 | /* Request the selection value from the owner. If we are the owner, | |
2159 | simply return our selection value. If we are not the owner, this | |
2160 | will block until all of the data has arrived. */ | |
2161 | ||
a0d76c27 | 2162 | DEFUN ("x-get-selection-internal", Fx_get_selection_internal, |
3a42401d | 2163 | Sx_get_selection_internal, 2, 3, 0, |
8c1a1077 PJ |
2164 | doc: /* Return text selected from some X window. |
2165 | SELECTION is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2166 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
3a42401d JD |
2167 | TYPE is the type of data desired, typically `STRING'. |
2168 | TIME_STAMP is the time to use in the XConvertSelection call for foreign | |
2169 | selections. If omitted, defaults to the time for the last event. */) | |
2170 | (selection_symbol, target_type, time_stamp) | |
2171 | Lisp_Object selection_symbol, target_type, time_stamp; | |
ede4db72 RS |
2172 | { |
2173 | Lisp_Object val = Qnil; | |
2174 | struct gcpro gcpro1, gcpro2; | |
2175 | GCPRO2 (target_type, val); /* we store newly consed data into these */ | |
703e0710 | 2176 | check_x (); |
b7826503 | 2177 | CHECK_SYMBOL (selection_symbol); |
ede4db72 RS |
2178 | |
2179 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
2180 | if (CONSP (target_type) | |
8e713be6 | 2181 | && XCAR (target_type) == QMULTIPLE) |
ede4db72 | 2182 | { |
b7826503 | 2183 | CHECK_VECTOR (XCDR (target_type)); |
ede4db72 RS |
2184 | /* So we don't destructively modify this... */ |
2185 | target_type = copy_multiple_data (target_type); | |
2186 | } | |
2187 | else | |
2188 | #endif | |
b7826503 | 2189 | CHECK_SYMBOL (target_type); |
ede4db72 | 2190 | |
5109c8dd | 2191 | val = x_get_local_selection (selection_symbol, target_type, 1); |
ede4db72 RS |
2192 | |
2193 | if (NILP (val)) | |
2194 | { | |
3a42401d | 2195 | val = x_get_foreign_selection (selection_symbol, target_type, time_stamp); |
ede4db72 RS |
2196 | goto DONE; |
2197 | } | |
2198 | ||
2199 | if (CONSP (val) | |
8e713be6 | 2200 | && SYMBOLP (XCAR (val))) |
ede4db72 | 2201 | { |
8e713be6 KR |
2202 | val = XCDR (val); |
2203 | if (CONSP (val) && NILP (XCDR (val))) | |
2204 | val = XCAR (val); | |
ede4db72 RS |
2205 | } |
2206 | val = clean_local_selection_data (val); | |
2207 | DONE: | |
2208 | UNGCPRO; | |
2209 | return val; | |
2210 | } | |
2211 | ||
a0d76c27 | 2212 | DEFUN ("x-disown-selection-internal", Fx_disown_selection_internal, |
8c1a1077 PJ |
2213 | Sx_disown_selection_internal, 1, 2, 0, |
2214 | doc: /* If we own the selection SELECTION, disown it. | |
2215 | Disowning it means there is no such selection. */) | |
2216 | (selection, time) | |
ede4db72 RS |
2217 | Lisp_Object selection; |
2218 | Lisp_Object time; | |
2219 | { | |
ede4db72 RS |
2220 | Time timestamp; |
2221 | Atom selection_atom; | |
31df61d6 AS |
2222 | union { |
2223 | struct selection_input_event sie; | |
2224 | struct input_event ie; | |
2225 | } event; | |
3834c318 | 2226 | Display *display; |
5c3a351a | 2227 | struct x_display_info *dpyinfo; |
378c33ca | 2228 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2229 | |
703e0710 | 2230 | check_x (); |
428a555e KL |
2231 | if (! FRAME_X_P (sf)) |
2232 | return Qnil; | |
2233 | ||
378c33ca GM |
2234 | display = FRAME_X_DISPLAY (sf); |
2235 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
b7826503 | 2236 | CHECK_SYMBOL (selection); |
ede4db72 | 2237 | if (NILP (time)) |
7da64e5c | 2238 | timestamp = last_event_timestamp; |
ede4db72 RS |
2239 | else |
2240 | timestamp = cons_to_long (time); | |
2241 | ||
2242 | if (NILP (assq_no_quit (selection, Vselection_alist))) | |
2243 | return Qnil; /* Don't disown the selection when we're not the owner. */ | |
2244 | ||
5c3a351a | 2245 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection); |
ede4db72 RS |
2246 | |
2247 | BLOCK_INPUT; | |
2248 | XSetSelectionOwner (display, selection_atom, None, timestamp); | |
2249 | UNBLOCK_INPUT; | |
2250 | ||
eb8c3be9 | 2251 | /* It doesn't seem to be guaranteed that a SelectionClear event will be |
ede4db72 RS |
2252 | generated for a window which owns the selection when that window sets |
2253 | the selection owner to None. The NCD server does, the MIT Sun4 server | |
2254 | doesn't. So we synthesize one; this means we might get two, but | |
2255 | that's ok, because the second one won't have any effect. */ | |
31df61d6 AS |
2256 | SELECTION_EVENT_DISPLAY (&event.sie) = display; |
2257 | SELECTION_EVENT_SELECTION (&event.sie) = selection_atom; | |
2258 | SELECTION_EVENT_TIME (&event.sie) = timestamp; | |
2259 | x_handle_selection_clear (&event.ie); | |
ede4db72 RS |
2260 | |
2261 | return Qt; | |
2262 | } | |
2263 | ||
a87ed99c RS |
2264 | /* Get rid of all the selections in buffer BUFFER. |
2265 | This is used when we kill a buffer. */ | |
2266 | ||
2267 | void | |
2268 | x_disown_buffer_selections (buffer) | |
2269 | Lisp_Object buffer; | |
2270 | { | |
2271 | Lisp_Object tail; | |
2272 | struct buffer *buf = XBUFFER (buffer); | |
2273 | ||
8e713be6 | 2274 | for (tail = Vselection_alist; CONSP (tail); tail = XCDR (tail)) |
a87ed99c RS |
2275 | { |
2276 | Lisp_Object elt, value; | |
8e713be6 KR |
2277 | elt = XCAR (tail); |
2278 | value = XCDR (elt); | |
2279 | if (CONSP (value) && MARKERP (XCAR (value)) | |
2280 | && XMARKER (XCAR (value))->buffer == buf) | |
2281 | Fx_disown_selection_internal (XCAR (elt), Qnil); | |
a87ed99c RS |
2282 | } |
2283 | } | |
ede4db72 RS |
2284 | |
2285 | DEFUN ("x-selection-owner-p", Fx_selection_owner_p, Sx_selection_owner_p, | |
8c1a1077 PJ |
2286 | 0, 1, 0, |
2287 | doc: /* Whether the current Emacs process owns the given X Selection. | |
2288 | The arg should be the name of the selection in question, typically one of | |
2289 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2290 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2291 | For convenience, the symbol nil is the same as `PRIMARY', | |
2292 | and t is the same as `SECONDARY'. */) | |
2293 | (selection) | |
ede4db72 RS |
2294 | Lisp_Object selection; |
2295 | { | |
703e0710 | 2296 | check_x (); |
b7826503 | 2297 | CHECK_SYMBOL (selection); |
ede4db72 RS |
2298 | if (EQ (selection, Qnil)) selection = QPRIMARY; |
2299 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
1b65481e | 2300 | |
ede4db72 RS |
2301 | if (NILP (Fassq (selection, Vselection_alist))) |
2302 | return Qnil; | |
2303 | return Qt; | |
2304 | } | |
2305 | ||
2306 | DEFUN ("x-selection-exists-p", Fx_selection_exists_p, Sx_selection_exists_p, | |
8c1a1077 PJ |
2307 | 0, 1, 0, |
2308 | doc: /* Whether there is an owner for the given X Selection. | |
2309 | The arg should be the name of the selection in question, typically one of | |
2310 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2311 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2312 | For convenience, the symbol nil is the same as `PRIMARY', | |
2313 | and t is the same as `SECONDARY'. */) | |
2314 | (selection) | |
ede4db72 RS |
2315 | Lisp_Object selection; |
2316 | { | |
2317 | Window owner; | |
356ba514 | 2318 | Atom atom; |
3834c318 | 2319 | Display *dpy; |
378c33ca | 2320 | struct frame *sf = SELECTED_FRAME (); |
3834c318 | 2321 | |
b8c70430 | 2322 | /* It should be safe to call this before we have an X frame. */ |
378c33ca | 2323 | if (! FRAME_X_P (sf)) |
b8c70430 RS |
2324 | return Qnil; |
2325 | ||
378c33ca | 2326 | dpy = FRAME_X_DISPLAY (sf); |
b7826503 | 2327 | CHECK_SYMBOL (selection); |
ede4db72 RS |
2328 | if (!NILP (Fx_selection_owner_p (selection))) |
2329 | return Qt; | |
356ba514 RS |
2330 | if (EQ (selection, Qnil)) selection = QPRIMARY; |
2331 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
378c33ca | 2332 | atom = symbol_to_x_atom (FRAME_X_DISPLAY_INFO (sf), dpy, selection); |
356ba514 RS |
2333 | if (atom == 0) |
2334 | return Qnil; | |
ede4db72 | 2335 | BLOCK_INPUT; |
356ba514 | 2336 | owner = XGetSelectionOwner (dpy, atom); |
ede4db72 RS |
2337 | UNBLOCK_INPUT; |
2338 | return (owner ? Qt : Qnil); | |
2339 | } | |
2340 | ||
2341 | \f | |
2342 | #ifdef CUT_BUFFER_SUPPORT | |
2343 | ||
ede4db72 RS |
2344 | /* Ensure that all 8 cut buffers exist. ICCCM says we gotta... */ |
2345 | static void | |
2346 | initialize_cut_buffers (display, window) | |
2347 | Display *display; | |
2348 | Window window; | |
2349 | { | |
2350 | unsigned char *data = (unsigned char *) ""; | |
2351 | BLOCK_INPUT; | |
2352 | #define FROB(atom) XChangeProperty (display, window, atom, XA_STRING, 8, \ | |
2353 | PropModeAppend, data, 0) | |
2354 | FROB (XA_CUT_BUFFER0); | |
2355 | FROB (XA_CUT_BUFFER1); | |
2356 | FROB (XA_CUT_BUFFER2); | |
2357 | FROB (XA_CUT_BUFFER3); | |
2358 | FROB (XA_CUT_BUFFER4); | |
2359 | FROB (XA_CUT_BUFFER5); | |
2360 | FROB (XA_CUT_BUFFER6); | |
2361 | FROB (XA_CUT_BUFFER7); | |
2362 | #undef FROB | |
2363 | UNBLOCK_INPUT; | |
ede4db72 RS |
2364 | } |
2365 | ||
2366 | ||
b7826503 | 2367 | #define CHECK_CUT_BUFFER(symbol) \ |
4d30ce50 | 2368 | do { CHECK_SYMBOL ((symbol)); \ |
ede4db72 RS |
2369 | if (!EQ((symbol), QCUT_BUFFER0) && !EQ((symbol), QCUT_BUFFER1) \ |
2370 | && !EQ((symbol), QCUT_BUFFER2) && !EQ((symbol), QCUT_BUFFER3) \ | |
2371 | && !EQ((symbol), QCUT_BUFFER4) && !EQ((symbol), QCUT_BUFFER5) \ | |
2372 | && !EQ((symbol), QCUT_BUFFER6) && !EQ((symbol), QCUT_BUFFER7)) \ | |
4d30ce50 KS |
2373 | signal_error ("Doesn't name a cut buffer", (symbol)); \ |
2374 | } while (0) | |
ede4db72 | 2375 | |
a87ed99c | 2376 | DEFUN ("x-get-cut-buffer-internal", Fx_get_cut_buffer_internal, |
8c1a1077 PJ |
2377 | Sx_get_cut_buffer_internal, 1, 1, 0, |
2378 | doc: /* Returns the value of the named cut buffer (typically CUT_BUFFER0). */) | |
2379 | (buffer) | |
ede4db72 RS |
2380 | Lisp_Object buffer; |
2381 | { | |
3834c318 | 2382 | Window window; |
ede4db72 RS |
2383 | Atom buffer_atom; |
2384 | unsigned char *data; | |
2385 | int bytes; | |
2386 | Atom type; | |
2387 | int format; | |
2388 | unsigned long size; | |
2389 | Lisp_Object ret; | |
3834c318 | 2390 | Display *display; |
5c3a351a | 2391 | struct x_display_info *dpyinfo; |
378c33ca | 2392 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2393 | |
703e0710 | 2394 | check_x (); |
428a555e KL |
2395 | |
2396 | if (! FRAME_X_P (sf)) | |
2397 | return Qnil; | |
2398 | ||
378c33ca GM |
2399 | display = FRAME_X_DISPLAY (sf); |
2400 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
3834c318 | 2401 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
b7826503 | 2402 | CHECK_CUT_BUFFER (buffer); |
5c3a351a | 2403 | buffer_atom = symbol_to_x_atom (dpyinfo, display, buffer); |
ede4db72 RS |
2404 | |
2405 | x_get_window_property (display, window, buffer_atom, &data, &bytes, | |
2406 | &type, &format, &size, 0); | |
22e00739 RS |
2407 | if (!data || !format) |
2408 | return Qnil; | |
1b65481e | 2409 | |
ede4db72 | 2410 | if (format != 8 || type != XA_STRING) |
4d30ce50 KS |
2411 | signal_error ("Cut buffer doesn't contain 8-bit data", |
2412 | list2 (x_atom_to_symbol (display, type), | |
2413 | make_number (format))); | |
ede4db72 | 2414 | |
3f6b532c | 2415 | ret = (bytes ? make_unibyte_string ((char *) data, bytes) : Qnil); |
4feb31b2 | 2416 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 2417 | calls xmalloc itself. */ |
4feb31b2 | 2418 | xfree (data); |
ede4db72 RS |
2419 | return ret; |
2420 | } | |
2421 | ||
2422 | ||
a87ed99c | 2423 | DEFUN ("x-store-cut-buffer-internal", Fx_store_cut_buffer_internal, |
8c1a1077 PJ |
2424 | Sx_store_cut_buffer_internal, 2, 2, 0, |
2425 | doc: /* Sets the value of the named cut buffer (typically CUT_BUFFER0). */) | |
2426 | (buffer, string) | |
ede4db72 RS |
2427 | Lisp_Object buffer, string; |
2428 | { | |
3834c318 | 2429 | Window window; |
ede4db72 RS |
2430 | Atom buffer_atom; |
2431 | unsigned char *data; | |
2432 | int bytes; | |
2433 | int bytes_remaining; | |
3834c318 RS |
2434 | int max_bytes; |
2435 | Display *display; | |
378c33ca | 2436 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2437 | |
703e0710 | 2438 | check_x (); |
428a555e KL |
2439 | |
2440 | if (! FRAME_X_P (sf)) | |
2441 | return Qnil; | |
2442 | ||
378c33ca | 2443 | display = FRAME_X_DISPLAY (sf); |
3834c318 RS |
2444 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
2445 | ||
2446 | max_bytes = SELECTION_QUANTUM (display); | |
2447 | if (max_bytes > MAX_SELECTION_QUANTUM) | |
2448 | max_bytes = MAX_SELECTION_QUANTUM; | |
2449 | ||
b7826503 PJ |
2450 | CHECK_CUT_BUFFER (buffer); |
2451 | CHECK_STRING (string); | |
378c33ca | 2452 | buffer_atom = symbol_to_x_atom (FRAME_X_DISPLAY_INFO (sf), |
5c3a351a | 2453 | display, buffer); |
d5db4077 KR |
2454 | data = (unsigned char *) SDATA (string); |
2455 | bytes = SBYTES (string); | |
ede4db72 RS |
2456 | bytes_remaining = bytes; |
2457 | ||
378c33ca | 2458 | if (! FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized) |
04649dbc KH |
2459 | { |
2460 | initialize_cut_buffers (display, window); | |
378c33ca | 2461 | FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized = 1; |
04649dbc | 2462 | } |
ede4db72 RS |
2463 | |
2464 | BLOCK_INPUT; | |
10608c8c RS |
2465 | |
2466 | /* Don't mess up with an empty value. */ | |
2467 | if (!bytes_remaining) | |
2468 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
2469 | PropModeReplace, data, 0); | |
2470 | ||
ede4db72 RS |
2471 | while (bytes_remaining) |
2472 | { | |
2473 | int chunk = (bytes_remaining < max_bytes | |
2474 | ? bytes_remaining : max_bytes); | |
2475 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
2476 | (bytes_remaining == bytes | |
2477 | ? PropModeReplace | |
2478 | : PropModeAppend), | |
2479 | data, chunk); | |
2480 | data += chunk; | |
2481 | bytes_remaining -= chunk; | |
2482 | } | |
2483 | UNBLOCK_INPUT; | |
2484 | return string; | |
2485 | } | |
2486 | ||
2487 | ||
a87ed99c | 2488 | DEFUN ("x-rotate-cut-buffers-internal", Fx_rotate_cut_buffers_internal, |
8c1a1077 PJ |
2489 | Sx_rotate_cut_buffers_internal, 1, 1, 0, |
2490 | doc: /* Rotate the values of the cut buffers by the given number of step. | |
2491 | Positive means shift the values forward, negative means backward. */) | |
2492 | (n) | |
ede4db72 RS |
2493 | Lisp_Object n; |
2494 | { | |
3834c318 RS |
2495 | Window window; |
2496 | Atom props[8]; | |
2497 | Display *display; | |
378c33ca | 2498 | struct frame *sf = SELECTED_FRAME (); |
428a555e | 2499 | |
703e0710 | 2500 | check_x (); |
428a555e KL |
2501 | |
2502 | if (! FRAME_X_P (sf)) | |
2503 | return Qnil; | |
2504 | ||
378c33ca | 2505 | display = FRAME_X_DISPLAY (sf); |
3834c318 | 2506 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
b7826503 | 2507 | CHECK_NUMBER (n); |
3834c318 RS |
2508 | if (XINT (n) == 0) |
2509 | return n; | |
378c33ca | 2510 | if (! FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized) |
04649dbc KH |
2511 | { |
2512 | initialize_cut_buffers (display, window); | |
378c33ca | 2513 | FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized = 1; |
04649dbc | 2514 | } |
3834c318 | 2515 | |
ede4db72 RS |
2516 | props[0] = XA_CUT_BUFFER0; |
2517 | props[1] = XA_CUT_BUFFER1; | |
2518 | props[2] = XA_CUT_BUFFER2; | |
2519 | props[3] = XA_CUT_BUFFER3; | |
2520 | props[4] = XA_CUT_BUFFER4; | |
2521 | props[5] = XA_CUT_BUFFER5; | |
2522 | props[6] = XA_CUT_BUFFER6; | |
2523 | props[7] = XA_CUT_BUFFER7; | |
2524 | BLOCK_INPUT; | |
2525 | XRotateWindowProperties (display, window, props, 8, XINT (n)); | |
2526 | UNBLOCK_INPUT; | |
2527 | return n; | |
2528 | } | |
2529 | ||
2530 | #endif | |
2531 | \f | |
1fb3821b JD |
2532 | /*********************************************************************** |
2533 | Drag and drop support | |
2534 | ***********************************************************************/ | |
2535 | /* Check that lisp values are of correct type for x_fill_property_data. | |
2536 | That is, number, string or a cons with two numbers (low and high 16 | |
2537 | bit parts of a 32 bit number). */ | |
2538 | ||
2539 | int | |
2540 | x_check_property_data (data) | |
2541 | Lisp_Object data; | |
2542 | { | |
2543 | Lisp_Object iter; | |
2544 | int size = 0; | |
2545 | ||
2546 | for (iter = data; CONSP (iter) && size != -1; iter = XCDR (iter), ++size) | |
2547 | { | |
2548 | Lisp_Object o = XCAR (iter); | |
2549 | ||
2550 | if (! NUMBERP (o) && ! STRINGP (o) && ! CONSP (o)) | |
2551 | size = -1; | |
2552 | else if (CONSP (o) && | |
2553 | (! NUMBERP (XCAR (o)) || ! NUMBERP (XCDR (o)))) | |
2554 | size = -1; | |
2555 | } | |
2556 | ||
2557 | return size; | |
2558 | } | |
2559 | ||
2560 | /* Convert lisp values to a C array. Values may be a number, a string | |
2561 | which is taken as an X atom name and converted to the atom value, or | |
2562 | a cons containing the two 16 bit parts of a 32 bit number. | |
2563 | ||
2564 | DPY is the display use to look up X atoms. | |
2565 | DATA is a Lisp list of values to be converted. | |
2566 | RET is the C array that contains the converted values. It is assumed | |
ff59904a | 2567 | it is big enough to hold all values. |
e22cf39c JD |
2568 | FORMAT is 8, 16 or 32 and denotes char/short/long for each C value to |
2569 | be stored in RET. Note that long is used for 32 even if long is more | |
2570 | than 32 bits (see man pages for XChangeProperty, XGetWindowProperty and | |
2571 | XClientMessageEvent). */ | |
1fb3821b JD |
2572 | |
2573 | void | |
2574 | x_fill_property_data (dpy, data, ret, format) | |
2575 | Display *dpy; | |
2576 | Lisp_Object data; | |
2577 | void *ret; | |
2578 | int format; | |
2579 | { | |
e22cf39c JD |
2580 | long val; |
2581 | long *d32 = (long *) ret; | |
2582 | short *d16 = (short *) ret; | |
2583 | char *d08 = (char *) ret; | |
1fb3821b JD |
2584 | Lisp_Object iter; |
2585 | ||
2586 | for (iter = data; CONSP (iter); iter = XCDR (iter)) | |
2587 | { | |
2588 | Lisp_Object o = XCAR (iter); | |
2589 | ||
2590 | if (INTEGERP (o)) | |
e22cf39c | 2591 | val = (long) XFASTINT (o); |
1fb3821b | 2592 | else if (FLOATP (o)) |
e22cf39c | 2593 | val = (long) XFLOAT_DATA (o); |
1fb3821b | 2594 | else if (CONSP (o)) |
e22cf39c | 2595 | val = (long) cons_to_long (o); |
1fb3821b JD |
2596 | else if (STRINGP (o)) |
2597 | { | |
2598 | BLOCK_INPUT; | |
e22cf39c | 2599 | val = (long) XInternAtom (dpy, (char *) SDATA (o), False); |
1fb3821b JD |
2600 | UNBLOCK_INPUT; |
2601 | } | |
2602 | else | |
2603 | error ("Wrong type, must be string, number or cons"); | |
2604 | ||
2605 | if (format == 8) | |
e22cf39c | 2606 | *d08++ = (char) val; |
1fb3821b | 2607 | else if (format == 16) |
e22cf39c | 2608 | *d16++ = (short) val; |
1fb3821b JD |
2609 | else |
2610 | *d32++ = val; | |
2611 | } | |
2612 | } | |
2613 | ||
2614 | /* Convert an array of C values to a Lisp list. | |
2615 | F is the frame to be used to look up X atoms if the TYPE is XA_ATOM. | |
2616 | DATA is a C array of values to be converted. | |
2617 | TYPE is the type of the data. Only XA_ATOM is special, it converts | |
2618 | each number in DATA to its corresponfing X atom as a symbol. | |
2619 | FORMAT is 8, 16 or 32 and gives the size in bits for each C value to | |
2620 | be stored in RET. | |
2621 | SIZE is the number of elements in DATA. | |
2622 | ||
b8d6f4af JD |
2623 | Important: When format is 32, data should contain an array of int, |
2624 | not an array of long as the X library returns. This makes a difference | |
2625 | when sizeof(long) != sizeof(int). | |
2626 | ||
1fb3821b JD |
2627 | Also see comment for selection_data_to_lisp_data above. */ |
2628 | ||
2629 | Lisp_Object | |
2630 | x_property_data_to_lisp (f, data, type, format, size) | |
2631 | struct frame *f; | |
2632 | unsigned char *data; | |
2633 | Atom type; | |
2634 | int format; | |
2635 | unsigned long size; | |
2636 | { | |
2637 | return selection_data_to_lisp_data (FRAME_X_DISPLAY (f), | |
2638 | data, size*format/8, type, format); | |
2639 | } | |
2640 | ||
31f16913 | 2641 | /* Get the mouse position in frame relative coordinates. */ |
1fb3821b JD |
2642 | |
2643 | static void | |
2644 | mouse_position_for_drop (f, x, y) | |
2645 | FRAME_PTR f; | |
2646 | int *x; | |
2647 | int *y; | |
2648 | { | |
2649 | Window root, dummy_window; | |
2650 | int dummy; | |
2651 | ||
2652 | BLOCK_INPUT; | |
2653 | ||
2654 | XQueryPointer (FRAME_X_DISPLAY (f), | |
2655 | DefaultRootWindow (FRAME_X_DISPLAY (f)), | |
2656 | ||
2657 | /* The root window which contains the pointer. */ | |
2658 | &root, | |
2659 | ||
2660 | /* Window pointer is on, not used */ | |
2661 | &dummy_window, | |
2662 | ||
2663 | /* The position on that root window. */ | |
2664 | x, y, | |
2665 | ||
2666 | /* x/y in dummy_window coordinates, not used. */ | |
2667 | &dummy, &dummy, | |
2668 | ||
2669 | /* Modifier keys and pointer buttons, about which | |
2670 | we don't care. */ | |
2671 | (unsigned int *) &dummy); | |
2672 | ||
2673 | ||
2674 | /* Absolute to relative. */ | |
2675 | *x -= f->left_pos + FRAME_OUTER_TO_INNER_DIFF_X (f); | |
2676 | *y -= f->top_pos + FRAME_OUTER_TO_INNER_DIFF_Y (f); | |
2677 | ||
2678 | UNBLOCK_INPUT; | |
2679 | } | |
2680 | ||
2681 | DEFUN ("x-get-atom-name", Fx_get_atom_name, | |
2682 | Sx_get_atom_name, 1, 2, 0, | |
2683 | doc: /* Return the X atom name for VALUE as a string. | |
2684 | VALUE may be a number or a cons where the car is the upper 16 bits and | |
2685 | the cdr is the lower 16 bits of a 32 bit value. | |
2686 | Use the display for FRAME or the current frame if FRAME is not given or nil. | |
2687 | ||
2688 | If the value is 0 or the atom is not known, return the empty string. */) | |
2689 | (value, frame) | |
2690 | Lisp_Object value, frame; | |
2691 | { | |
2692 | struct frame *f = check_x_frame (frame); | |
2693 | char *name = 0; | |
2694 | Lisp_Object ret = Qnil; | |
1fb3821b JD |
2695 | Display *dpy = FRAME_X_DISPLAY (f); |
2696 | Atom atom; | |
c525d842 | 2697 | int had_errors; |
1fb3821b JD |
2698 | |
2699 | if (INTEGERP (value)) | |
2700 | atom = (Atom) XUINT (value); | |
2701 | else if (FLOATP (value)) | |
ff59904a | 2702 | atom = (Atom) XFLOAT_DATA (value); |
1fb3821b JD |
2703 | else if (CONSP (value)) |
2704 | atom = (Atom) cons_to_long (value); | |
2705 | else | |
2706 | error ("Wrong type, value must be number or cons"); | |
2707 | ||
2708 | BLOCK_INPUT; | |
9ba8e10d | 2709 | x_catch_errors (dpy); |
1fb3821b | 2710 | name = atom ? XGetAtomName (dpy, atom) : ""; |
c525d842 CY |
2711 | had_errors = x_had_errors_p (dpy); |
2712 | x_uncatch_errors (); | |
1fb3821b | 2713 | |
c525d842 | 2714 | if (!had_errors) |
1fb3821b JD |
2715 | ret = make_string (name, strlen (name)); |
2716 | ||
1fb3821b | 2717 | if (atom && name) XFree (name); |
8b3ad112 | 2718 | if (NILP (ret)) ret = empty_unibyte_string; |
1fb3821b JD |
2719 | |
2720 | UNBLOCK_INPUT; | |
2721 | ||
2722 | return ret; | |
2723 | } | |
2724 | ||
9fc68699 JD |
2725 | DEFUN ("x-register-dnd-atom", Fx_register_dnd_atom, |
2726 | Sx_register_dnd_atom, 1, 2, 0, | |
2727 | doc: /* Request that dnd events are made for ClientMessages with ATOM. | |
2728 | ATOM can be a symbol or a string. The ATOM is interned on the display that | |
2729 | FRAME is on. If FRAME is nil, the selected frame is used. */) | |
2730 | (atom, frame) | |
2731 | Lisp_Object atom, frame; | |
2732 | { | |
2733 | Atom x_atom; | |
2734 | struct frame *f = check_x_frame (frame); | |
2735 | size_t i; | |
2736 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); | |
2737 | ||
2738 | ||
2739 | if (SYMBOLP (atom)) | |
2740 | x_atom = symbol_to_x_atom (dpyinfo, FRAME_X_DISPLAY (f), atom); | |
2741 | else if (STRINGP (atom)) | |
2742 | { | |
2743 | BLOCK_INPUT; | |
2744 | x_atom = XInternAtom (FRAME_X_DISPLAY (f), (char *) SDATA (atom), False); | |
2745 | UNBLOCK_INPUT; | |
2746 | } | |
2747 | else | |
2748 | error ("ATOM must be a symbol or a string"); | |
2749 | ||
db9cd97a | 2750 | for (i = 0; i < dpyinfo->x_dnd_atoms_length; ++i) |
9fc68699 JD |
2751 | if (dpyinfo->x_dnd_atoms[i] == x_atom) |
2752 | return Qnil; | |
2753 | ||
db9cd97a | 2754 | if (dpyinfo->x_dnd_atoms_length == dpyinfo->x_dnd_atoms_size) |
9fc68699 JD |
2755 | { |
2756 | dpyinfo->x_dnd_atoms_size *= 2; | |
2757 | dpyinfo->x_dnd_atoms = xrealloc (dpyinfo->x_dnd_atoms, | |
2758 | sizeof (*dpyinfo->x_dnd_atoms) | |
2759 | * dpyinfo->x_dnd_atoms_size); | |
2760 | } | |
2761 | ||
2762 | dpyinfo->x_dnd_atoms[dpyinfo->x_dnd_atoms_length++] = x_atom; | |
2763 | return Qnil; | |
2764 | } | |
2765 | ||
2766 | /* Convert an XClientMessageEvent to a Lisp event of type DRAG_N_DROP_EVENT. */ | |
1fb3821b JD |
2767 | |
2768 | int | |
2769 | x_handle_dnd_message (f, event, dpyinfo, bufp) | |
2770 | struct frame *f; | |
2771 | XClientMessageEvent *event; | |
2772 | struct x_display_info *dpyinfo; | |
2773 | struct input_event *bufp; | |
2774 | { | |
2775 | Lisp_Object vec; | |
2776 | Lisp_Object frame; | |
e22cf39c JD |
2777 | /* format 32 => size 5, format 16 => size 10, format 8 => size 20 */ |
2778 | unsigned long size = 160/event->format; | |
1fb3821b | 2779 | int x, y; |
31f16913 JD |
2780 | unsigned char *data = (unsigned char *) event->data.b; |
2781 | int idata[5]; | |
9fc68699 JD |
2782 | size_t i; |
2783 | ||
db9cd97a | 2784 | for (i = 0; i < dpyinfo->x_dnd_atoms_length; ++i) |
9fc68699 JD |
2785 | if (dpyinfo->x_dnd_atoms[i] == event->message_type) break; |
2786 | ||
2787 | if (i == dpyinfo->x_dnd_atoms_length) return 0; | |
1fb3821b JD |
2788 | |
2789 | XSETFRAME (frame, f); | |
2790 | ||
31f16913 JD |
2791 | /* On a 64 bit machine, the event->data.l array members are 64 bits (long), |
2792 | but the x_property_data_to_lisp (or rather selection_data_to_lisp_data) | |
2793 | function expects them to be of size int (i.e. 32). So to be able to | |
2794 | use that function, put the data in the form it expects if format is 32. */ | |
2795 | ||
2796 | if (event->format == 32 && event->format < BITS_PER_LONG) | |
2797 | { | |
2798 | int i; | |
2799 | for (i = 0; i < 5; ++i) /* There are only 5 longs in a ClientMessage. */ | |
2800 | idata[i] = (int) event->data.l[i]; | |
2801 | data = (unsigned char *) idata; | |
2802 | } | |
2803 | ||
d2f14999 | 2804 | vec = Fmake_vector (make_number (4), Qnil); |
1fb3821b JD |
2805 | AREF (vec, 0) = SYMBOL_NAME (x_atom_to_symbol (FRAME_X_DISPLAY (f), |
2806 | event->message_type)); | |
2807 | AREF (vec, 1) = frame; | |
d2f14999 | 2808 | AREF (vec, 2) = make_number (event->format); |
1fb3821b | 2809 | AREF (vec, 3) = x_property_data_to_lisp (f, |
31f16913 | 2810 | data, |
1fb3821b JD |
2811 | event->message_type, |
2812 | event->format, | |
2813 | size); | |
2814 | ||
2815 | mouse_position_for_drop (f, &x, &y); | |
2816 | bufp->kind = DRAG_N_DROP_EVENT; | |
862c94ca | 2817 | bufp->frame_or_window = frame; |
1fb3821b JD |
2818 | bufp->timestamp = CurrentTime; |
2819 | bufp->x = make_number (x); | |
2820 | bufp->y = make_number (y); | |
862c94ca | 2821 | bufp->arg = vec; |
1fb3821b JD |
2822 | bufp->modifiers = 0; |
2823 | ||
2824 | return 1; | |
2825 | } | |
2826 | ||
2827 | DEFUN ("x-send-client-message", Fx_send_client_event, | |
2828 | Sx_send_client_message, 6, 6, 0, | |
2829 | doc: /* Send a client message of MESSAGE-TYPE to window DEST on DISPLAY. | |
2830 | ||
2831 | For DISPLAY, specify either a frame or a display name (a string). | |
2832 | If DISPLAY is nil, that stands for the selected frame's display. | |
2833 | DEST may be a number, in which case it is a Window id. The value 0 may | |
2834 | be used to send to the root window of the DISPLAY. | |
2835 | If DEST is a cons, it is converted to a 32 bit number | |
2836 | with the high 16 bits from the car and the lower 16 bit from the cdr. That | |
2837 | number is then used as a window id. | |
2838 | If DEST is a frame the event is sent to the outer window of that frame. | |
2839 | Nil means the currently selected frame. | |
2840 | If DEST is the string "PointerWindow" the event is sent to the window that | |
2841 | contains the pointer. If DEST is the string "InputFocus" the event is | |
2842 | sent to the window that has the input focus. | |
2843 | FROM is the frame sending the event. Use nil for currently selected frame. | |
2844 | MESSAGE-TYPE is the name of an Atom as a string. | |
2845 | FORMAT must be one of 8, 16 or 32 and determines the size of the values in | |
2846 | bits. VALUES is a list of numbers, cons and/or strings containing the values | |
2847 | to send. If a value is a string, it is converted to an Atom and the value of | |
2848 | the Atom is sent. If a value is a cons, it is converted to a 32 bit number | |
2849 | with the high 16 bits from the car and the lower 16 bit from the cdr. | |
2850 | If more values than fits into the event is given, the excessive values | |
2851 | are ignored. */) | |
2852 | (display, dest, from, message_type, format, values) | |
2853 | Lisp_Object display, dest, from, message_type, format, values; | |
2854 | { | |
2855 | struct x_display_info *dpyinfo = check_x_display_info (display); | |
2856 | Window wdest; | |
2857 | XEvent event; | |
2858 | Lisp_Object cons; | |
2859 | int size; | |
2860 | struct frame *f = check_x_frame (from); | |
1fb3821b JD |
2861 | int to_root; |
2862 | ||
2863 | CHECK_STRING (message_type); | |
2864 | CHECK_NUMBER (format); | |
2865 | CHECK_CONS (values); | |
2866 | ||
2867 | if (x_check_property_data (values) == -1) | |
2868 | error ("Bad data in VALUES, must be number, cons or string"); | |
2869 | ||
2870 | event.xclient.type = ClientMessage; | |
2871 | event.xclient.format = XFASTINT (format); | |
2872 | ||
2873 | if (event.xclient.format != 8 && event.xclient.format != 16 | |
2874 | && event.xclient.format != 32) | |
2875 | error ("FORMAT must be one of 8, 16 or 32"); | |
a0ecb2ac | 2876 | |
1fb3821b JD |
2877 | if (FRAMEP (dest) || NILP (dest)) |
2878 | { | |
2879 | struct frame *fdest = check_x_frame (dest); | |
2880 | wdest = FRAME_OUTER_WINDOW (fdest); | |
2881 | } | |
2882 | else if (STRINGP (dest)) | |
2883 | { | |
2884 | if (strcmp (SDATA (dest), "PointerWindow") == 0) | |
2885 | wdest = PointerWindow; | |
2886 | else if (strcmp (SDATA (dest), "InputFocus") == 0) | |
2887 | wdest = InputFocus; | |
2888 | else | |
2889 | error ("DEST as a string must be one of PointerWindow or InputFocus"); | |
2890 | } | |
2891 | else if (INTEGERP (dest)) | |
2892 | wdest = (Window) XFASTINT (dest); | |
2893 | else if (FLOATP (dest)) | |
ff59904a | 2894 | wdest = (Window) XFLOAT_DATA (dest); |
1fb3821b JD |
2895 | else if (CONSP (dest)) |
2896 | { | |
2897 | if (! NUMBERP (XCAR (dest)) || ! NUMBERP (XCDR (dest))) | |
2898 | error ("Both car and cdr for DEST must be numbers"); | |
2899 | else | |
2900 | wdest = (Window) cons_to_long (dest); | |
2901 | } | |
2902 | else | |
2903 | error ("DEST must be a frame, nil, string, number or cons"); | |
2904 | ||
2905 | if (wdest == 0) wdest = dpyinfo->root_window; | |
2906 | to_root = wdest == dpyinfo->root_window; | |
2907 | ||
2908 | for (cons = values, size = 0; CONSP (cons); cons = XCDR (cons), ++size) | |
2909 | ; | |
2910 | ||
2911 | BLOCK_INPUT; | |
2912 | ||
2913 | event.xclient.message_type | |
2914 | = XInternAtom (dpyinfo->display, SDATA (message_type), False); | |
2915 | event.xclient.display = dpyinfo->display; | |
2916 | ||
2917 | /* Some clients (metacity for example) expects sending window to be here | |
2918 | when sending to the root window. */ | |
2919 | event.xclient.window = to_root ? FRAME_OUTER_WINDOW (f) : wdest; | |
2920 | ||
6e816df5 | 2921 | |
1fb3821b JD |
2922 | memset (event.xclient.data.b, 0, sizeof (event.xclient.data.b)); |
2923 | x_fill_property_data (dpyinfo->display, values, event.xclient.data.b, | |
2924 | event.xclient.format); | |
2925 | ||
2926 | /* If event mask is 0 the event is sent to the client that created | |
2927 | the destination window. But if we are sending to the root window, | |
2928 | there is no such client. Then we set the event mask to 0xffff. The | |
2929 | event then goes to clients selecting for events on the root window. */ | |
9ba8e10d | 2930 | x_catch_errors (dpyinfo->display); |
1fb3821b JD |
2931 | { |
2932 | int propagate = to_root ? False : True; | |
2933 | unsigned mask = to_root ? 0xffff : 0; | |
2934 | XSendEvent (dpyinfo->display, wdest, propagate, mask, &event); | |
2935 | XFlush (dpyinfo->display); | |
2936 | } | |
4545fa20 | 2937 | x_uncatch_errors (); |
1fb3821b JD |
2938 | UNBLOCK_INPUT; |
2939 | ||
2940 | return Qnil; | |
2941 | } | |
2942 | ||
2943 | \f | |
ede4db72 RS |
2944 | void |
2945 | syms_of_xselect () | |
2946 | { | |
ede4db72 RS |
2947 | defsubr (&Sx_get_selection_internal); |
2948 | defsubr (&Sx_own_selection_internal); | |
2949 | defsubr (&Sx_disown_selection_internal); | |
2950 | defsubr (&Sx_selection_owner_p); | |
2951 | defsubr (&Sx_selection_exists_p); | |
2952 | ||
2953 | #ifdef CUT_BUFFER_SUPPORT | |
a87ed99c RS |
2954 | defsubr (&Sx_get_cut_buffer_internal); |
2955 | defsubr (&Sx_store_cut_buffer_internal); | |
2956 | defsubr (&Sx_rotate_cut_buffers_internal); | |
ede4db72 RS |
2957 | #endif |
2958 | ||
1fb3821b JD |
2959 | defsubr (&Sx_get_atom_name); |
2960 | defsubr (&Sx_send_client_message); | |
9fc68699 | 2961 | defsubr (&Sx_register_dnd_atom); |
1fb3821b | 2962 | |
ede4db72 RS |
2963 | reading_selection_reply = Fcons (Qnil, Qnil); |
2964 | staticpro (&reading_selection_reply); | |
2965 | reading_selection_window = 0; | |
2966 | reading_which_selection = 0; | |
2967 | ||
2968 | property_change_wait_list = 0; | |
2f65feb6 | 2969 | prop_location_identifier = 0; |
ede4db72 RS |
2970 | property_change_reply = Fcons (Qnil, Qnil); |
2971 | staticpro (&property_change_reply); | |
2972 | ||
2973 | Vselection_alist = Qnil; | |
2974 | staticpro (&Vselection_alist); | |
2975 | ||
2976 | DEFVAR_LISP ("selection-converter-alist", &Vselection_converter_alist, | |
8c1a1077 PJ |
2977 | doc: /* An alist associating X Windows selection-types with functions. |
2978 | These functions are called to convert the selection, with three args: | |
2979 | the name of the selection (typically `PRIMARY', `SECONDARY', or `CLIPBOARD'); | |
2980 | a desired type to which the selection should be converted; | |
2981 | and the local selection value (whatever was given to `x-own-selection'). | |
2982 | ||
2983 | The function should return the value to send to the X server | |
2984 | \(typically a string). A return value of nil | |
2985 | means that the conversion could not be done. | |
2986 | A return value which is the symbol `NULL' | |
2987 | means that a side-effect was executed, | |
2988 | and there is no meaningful selection value. */); | |
ede4db72 RS |
2989 | Vselection_converter_alist = Qnil; |
2990 | ||
c917a8de | 2991 | DEFVAR_LISP ("x-lost-selection-functions", &Vx_lost_selection_functions, |
8c1a1077 PJ |
2992 | doc: /* A list of functions to be called when Emacs loses an X selection. |
2993 | \(This happens when some other X client makes its own selection | |
2994 | or when a Lisp program explicitly clears the selection.) | |
2995 | The functions are called with one argument, the selection type | |
2996 | \(a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'). */); | |
c917a8de | 2997 | Vx_lost_selection_functions = Qnil; |
ede4db72 | 2998 | |
c917a8de | 2999 | DEFVAR_LISP ("x-sent-selection-functions", &Vx_sent_selection_functions, |
8c1a1077 PJ |
3000 | doc: /* A list of functions to be called when Emacs answers a selection request. |
3001 | The functions are called with four arguments: | |
3002 | - the selection name (typically `PRIMARY', `SECONDARY', or `CLIPBOARD'); | |
3003 | - the selection-type which Emacs was asked to convert the | |
3004 | selection into before sending (for example, `STRING' or `LENGTH'); | |
3005 | - a flag indicating success or failure for responding to the request. | |
3006 | We might have failed (and declined the request) for any number of reasons, | |
3007 | including being asked for a selection that we no longer own, or being asked | |
3008 | to convert into a type that we don't know about or that is inappropriate. | |
3009 | This hook doesn't let you change the behavior of Emacs's selection replies, | |
3010 | it merely informs you that they have happened. */); | |
c917a8de | 3011 | Vx_sent_selection_functions = Qnil; |
ede4db72 | 3012 | |
93e4ce1b | 3013 | DEFVAR_LISP ("selection-coding-system", &Vselection_coding_system, |
8c1a1077 | 3014 | doc: /* Coding system for communicating with other X clients. |
99c9e94c KH |
3015 | |
3016 | When sending text via selection and clipboard, if the requested | |
3017 | data-type is not "UTF8_STRING", the text is encoded by this coding | |
3018 | system. | |
3019 | ||
3020 | When receiving text, if the data-type of the received text is not | |
3021 | "UTF8_STRING", it is decoded by this coding system. | |
3022 | ||
3023 | See also the documentation of the variable `x-select-request-type' how | |
3024 | to control which data-type to request for receiving text. | |
3025 | ||
5a79ea57 EZ |
3026 | The default value is `compound-text-with-extensions'. */); |
3027 | Vselection_coding_system = intern ("compound-text-with-extensions"); | |
2584c9ec | 3028 | |
16cd5029 | 3029 | DEFVAR_LISP ("next-selection-coding-system", &Vnext_selection_coding_system, |
8c1a1077 PJ |
3030 | doc: /* Coding system for the next communication with other X clients. |
3031 | Usually, `selection-coding-system' is used for communicating with | |
f8f8d464 JB |
3032 | other X clients. But, if this variable is set, it is used for the |
3033 | next communication only. After the communication, this variable is | |
8c1a1077 | 3034 | set to nil. */); |
16cd5029 KH |
3035 | Vnext_selection_coding_system = Qnil; |
3036 | ||
ede4db72 | 3037 | DEFVAR_INT ("x-selection-timeout", &x_selection_timeout, |
8c1a1077 PJ |
3038 | doc: /* Number of milliseconds to wait for a selection reply. |
3039 | If the selection owner doesn't reply in this time, we give up. | |
3040 | A value of 0 means wait as long as necessary. This is initialized from the | |
3041 | \"*selectionTimeout\" resource. */); | |
ede4db72 RS |
3042 | x_selection_timeout = 0; |
3043 | ||
3044 | QPRIMARY = intern ("PRIMARY"); staticpro (&QPRIMARY); | |
3045 | QSECONDARY = intern ("SECONDARY"); staticpro (&QSECONDARY); | |
3046 | QSTRING = intern ("STRING"); staticpro (&QSTRING); | |
3047 | QINTEGER = intern ("INTEGER"); staticpro (&QINTEGER); | |
3048 | QCLIPBOARD = intern ("CLIPBOARD"); staticpro (&QCLIPBOARD); | |
3049 | QTIMESTAMP = intern ("TIMESTAMP"); staticpro (&QTIMESTAMP); | |
3050 | QTEXT = intern ("TEXT"); staticpro (&QTEXT); | |
e6c7c988 | 3051 | QCOMPOUND_TEXT = intern ("COMPOUND_TEXT"); staticpro (&QCOMPOUND_TEXT); |
5109c8dd | 3052 | QUTF8_STRING = intern ("UTF8_STRING"); staticpro (&QUTF8_STRING); |
ede4db72 RS |
3053 | QDELETE = intern ("DELETE"); staticpro (&QDELETE); |
3054 | QMULTIPLE = intern ("MULTIPLE"); staticpro (&QMULTIPLE); | |
3055 | QINCR = intern ("INCR"); staticpro (&QINCR); | |
3056 | QEMACS_TMP = intern ("_EMACS_TMP_"); staticpro (&QEMACS_TMP); | |
3057 | QTARGETS = intern ("TARGETS"); staticpro (&QTARGETS); | |
3058 | QATOM = intern ("ATOM"); staticpro (&QATOM); | |
3059 | QATOM_PAIR = intern ("ATOM_PAIR"); staticpro (&QATOM_PAIR); | |
3060 | QNULL = intern ("NULL"); staticpro (&QNULL); | |
5a79ea57 EZ |
3061 | Qcompound_text_with_extensions = intern ("compound-text-with-extensions"); |
3062 | staticpro (&Qcompound_text_with_extensions); | |
ede4db72 RS |
3063 | |
3064 | #ifdef CUT_BUFFER_SUPPORT | |
3065 | QCUT_BUFFER0 = intern ("CUT_BUFFER0"); staticpro (&QCUT_BUFFER0); | |
3066 | QCUT_BUFFER1 = intern ("CUT_BUFFER1"); staticpro (&QCUT_BUFFER1); | |
3067 | QCUT_BUFFER2 = intern ("CUT_BUFFER2"); staticpro (&QCUT_BUFFER2); | |
3068 | QCUT_BUFFER3 = intern ("CUT_BUFFER3"); staticpro (&QCUT_BUFFER3); | |
3069 | QCUT_BUFFER4 = intern ("CUT_BUFFER4"); staticpro (&QCUT_BUFFER4); | |
3070 | QCUT_BUFFER5 = intern ("CUT_BUFFER5"); staticpro (&QCUT_BUFFER5); | |
3071 | QCUT_BUFFER6 = intern ("CUT_BUFFER6"); staticpro (&QCUT_BUFFER6); | |
3072 | QCUT_BUFFER7 = intern ("CUT_BUFFER7"); staticpro (&QCUT_BUFFER7); | |
3073 | #endif | |
3074 | ||
e57ad4d8 KH |
3075 | Qforeign_selection = intern ("foreign-selection"); |
3076 | staticpro (&Qforeign_selection); | |
ede4db72 | 3077 | } |
ab5796a9 MB |
3078 | |
3079 | /* arch-tag: 7c293b0f-9918-4f69-8ac7-03e142307236 | |
3080 | (do not change this comment) */ |