Commit | Line | Data |
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2408b3a1 | 1 | /* X Selection processing for Emacs. |
2f51feb8 | 2 | Copyright (C) 1993, 1994, 1995, 1996, 1997, 2000, 2001, 2003 |
d9c0d4a3 | 3 | Free Software Foundation. |
ede4db72 RS |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
ede4db72 | 21 | |
c6c5df7f | 22 | |
ede4db72 RS |
23 | /* Rewritten by jwz */ |
24 | ||
18160b98 | 25 | #include <config.h> |
ede4db72 RS |
26 | #include "lisp.h" |
27 | #include "xterm.h" /* for all of the X includes */ | |
7da64e5c RS |
28 | #include "dispextern.h" /* frame.h seems to want this */ |
29 | #include "frame.h" /* Need this to get the X window of selected_frame */ | |
9ac0d9e0 | 30 | #include "blockinput.h" |
5faa9b45 | 31 | #include "buffer.h" |
dfcf069d | 32 | #include "process.h" |
1fb3821b JD |
33 | #include "termhooks.h" |
34 | ||
35 | #include <X11/Xproto.h> | |
7da64e5c | 36 | |
d9c0d4a3 GM |
37 | struct prop_location; |
38 | ||
39 | static Lisp_Object x_atom_to_symbol P_ ((Display *dpy, Atom atom)); | |
40 | static Atom symbol_to_x_atom P_ ((struct x_display_info *, Display *, | |
41 | Lisp_Object)); | |
42 | static void x_own_selection P_ ((Lisp_Object, Lisp_Object)); | |
5109c8dd | 43 | static Lisp_Object x_get_local_selection P_ ((Lisp_Object, Lisp_Object, int)); |
d9c0d4a3 GM |
44 | static void x_decline_selection_request P_ ((struct input_event *)); |
45 | static Lisp_Object x_selection_request_lisp_error P_ ((Lisp_Object)); | |
46 | static Lisp_Object queue_selection_requests_unwind P_ ((Lisp_Object)); | |
47 | static Lisp_Object some_frame_on_display P_ ((struct x_display_info *)); | |
48 | static void x_reply_selection_request P_ ((struct input_event *, int, | |
49 | unsigned char *, int, Atom)); | |
50 | static int waiting_for_other_props_on_window P_ ((Display *, Window)); | |
51 | static struct prop_location *expect_property_change P_ ((Display *, Window, | |
52 | Atom, int)); | |
53 | static void unexpect_property_change P_ ((struct prop_location *)); | |
54 | static Lisp_Object wait_for_property_change_unwind P_ ((Lisp_Object)); | |
55 | static void wait_for_property_change P_ ((struct prop_location *)); | |
56 | static Lisp_Object x_get_foreign_selection P_ ((Lisp_Object, Lisp_Object)); | |
57 | static void x_get_window_property P_ ((Display *, Window, Atom, | |
58 | unsigned char **, int *, | |
59 | Atom *, int *, unsigned long *, int)); | |
60 | static void receive_incremental_selection P_ ((Display *, Window, Atom, | |
61 | Lisp_Object, unsigned, | |
62 | unsigned char **, int *, | |
63 | Atom *, int *, unsigned long *)); | |
64 | static Lisp_Object x_get_window_property_as_lisp_data P_ ((Display *, | |
65 | Window, Atom, | |
66 | Lisp_Object, Atom)); | |
67 | static Lisp_Object selection_data_to_lisp_data P_ ((Display *, unsigned char *, | |
68 | int, Atom, int)); | |
69 | static void lisp_data_to_selection_data P_ ((Display *, Lisp_Object, | |
70 | unsigned char **, Atom *, | |
71 | unsigned *, int *, int *)); | |
72 | static Lisp_Object clean_local_selection_data P_ ((Lisp_Object)); | |
73 | static void initialize_cut_buffers P_ ((Display *, Window)); | |
74 | ||
75 | ||
76 | /* Printing traces to stderr. */ | |
77 | ||
78 | #ifdef TRACE_SELECTION | |
79 | #define TRACE0(fmt) \ | |
80 | fprintf (stderr, "%d: " fmt "\n", getpid ()) | |
81 | #define TRACE1(fmt, a0) \ | |
82 | fprintf (stderr, "%d: " fmt "\n", getpid (), a0) | |
83 | #define TRACE2(fmt, a0, a1) \ | |
84 | fprintf (stderr, "%d: " fmt "\n", getpid (), a0, a1) | |
85 | #else | |
86 | #define TRACE0(fmt) (void) 0 | |
87 | #define TRACE1(fmt, a0) (void) 0 | |
88 | #define TRACE2(fmt, a0, a1) (void) 0 | |
89 | #endif | |
90 | ||
91 | ||
ede4db72 RS |
92 | #define CUT_BUFFER_SUPPORT |
93 | ||
ede4db72 RS |
94 | Lisp_Object QPRIMARY, QSECONDARY, QSTRING, QINTEGER, QCLIPBOARD, QTIMESTAMP, |
95 | QTEXT, QDELETE, QMULTIPLE, QINCR, QEMACS_TMP, QTARGETS, QATOM, QNULL, | |
96 | QATOM_PAIR; | |
97 | ||
e6c7c988 | 98 | Lisp_Object QCOMPOUND_TEXT; /* This is a type of selection. */ |
5109c8dd | 99 | Lisp_Object QUTF8_STRING; /* This is a type of selection. */ |
e6c7c988 | 100 | |
5a79ea57 | 101 | Lisp_Object Qcompound_text_with_extensions; |
fbbe0ace | 102 | |
ede4db72 RS |
103 | #ifdef CUT_BUFFER_SUPPORT |
104 | Lisp_Object QCUT_BUFFER0, QCUT_BUFFER1, QCUT_BUFFER2, QCUT_BUFFER3, | |
105 | QCUT_BUFFER4, QCUT_BUFFER5, QCUT_BUFFER6, QCUT_BUFFER7; | |
106 | #endif | |
107 | ||
8f4f023f RS |
108 | static Lisp_Object Vx_lost_selection_hooks; |
109 | static Lisp_Object Vx_sent_selection_hooks; | |
2584c9ec KH |
110 | /* Coding system for communicating with other X clients via cutbuffer, |
111 | selection, and clipboard. */ | |
93e4ce1b | 112 | static Lisp_Object Vselection_coding_system; |
ede4db72 | 113 | |
16cd5029 KH |
114 | /* Coding system for the next communicating with other X clients. */ |
115 | static Lisp_Object Vnext_selection_coding_system; | |
116 | ||
e57ad4d8 KH |
117 | static Lisp_Object Qforeign_selection; |
118 | ||
ede4db72 RS |
119 | /* If this is a smaller number than the max-request-size of the display, |
120 | emacs will use INCR selection transfer when the selection is larger | |
121 | than this. The max-request-size is usually around 64k, so if you want | |
1b65481e | 122 | emacs to use incremental selection transfers when the selection is |
ede4db72 | 123 | smaller than that, set this. I added this mostly for debugging the |
8f4f023f | 124 | incremental transfer stuff, but it might improve server performance. */ |
ede4db72 RS |
125 | #define MAX_SELECTION_QUANTUM 0xFFFFFF |
126 | ||
c3498e64 JB |
127 | #ifdef HAVE_X11R4 |
128 | #define SELECTION_QUANTUM(dpy) ((XMaxRequestSize(dpy) << 2) - 100) | |
129 | #else | |
130 | #define SELECTION_QUANTUM(dpy) (((dpy)->max_request_size << 2) - 100) | |
131 | #endif | |
ede4db72 | 132 | |
7da64e5c | 133 | /* The timestamp of the last input event Emacs received from the X server. */ |
29674445 KH |
134 | /* Defined in keyboard.c. */ |
135 | extern unsigned long last_event_timestamp; | |
ede4db72 RS |
136 | |
137 | /* This is an association list whose elements are of the form | |
118bd841 RS |
138 | ( SELECTION-NAME SELECTION-VALUE SELECTION-TIMESTAMP FRAME) |
139 | SELECTION-NAME is a lisp symbol, whose name is the name of an X Atom. | |
140 | SELECTION-VALUE is the value that emacs owns for that selection. | |
ede4db72 | 141 | It may be any kind of Lisp object. |
118bd841 | 142 | SELECTION-TIMESTAMP is the time at which emacs began owning this selection, |
ede4db72 | 143 | as a cons of two 16-bit numbers (making a 32 bit time.) |
118bd841 RS |
144 | FRAME is the frame for which we made the selection. |
145 | If there is an entry in this alist, then it can be assumed that Emacs owns | |
ede4db72 RS |
146 | that selection. |
147 | The only (eq) parts of this list that are visible from Lisp are the | |
8f4f023f RS |
148 | selection-values. */ |
149 | static Lisp_Object Vselection_alist; | |
ede4db72 RS |
150 | |
151 | /* This is an alist whose CARs are selection-types (whose names are the same | |
152 | as the names of X Atoms) and whose CDRs are the names of Lisp functions to | |
1b65481e | 153 | call to convert the given Emacs selection value to a string representing |
ede4db72 | 154 | the given selection type. This is for Lisp-level extension of the emacs |
8f4f023f RS |
155 | selection handling. */ |
156 | static Lisp_Object Vselection_converter_alist; | |
ede4db72 RS |
157 | |
158 | /* If the selection owner takes too long to reply to a selection request, | |
8f4f023f | 159 | we give up on it. This is in milliseconds (0 = no timeout.) */ |
31ade731 | 160 | static EMACS_INT x_selection_timeout; |
ede4db72 RS |
161 | \f |
162 | /* Utility functions */ | |
163 | ||
164 | static void lisp_data_to_selection_data (); | |
165 | static Lisp_Object selection_data_to_lisp_data (); | |
166 | static Lisp_Object x_get_window_property_as_lisp_data (); | |
167 | ||
1b65481e | 168 | /* This converts a Lisp symbol to a server Atom, avoiding a server |
ede4db72 RS |
169 | roundtrip whenever possible. */ |
170 | ||
171 | static Atom | |
5c3a351a RS |
172 | symbol_to_x_atom (dpyinfo, display, sym) |
173 | struct x_display_info *dpyinfo; | |
ede4db72 RS |
174 | Display *display; |
175 | Lisp_Object sym; | |
176 | { | |
177 | Atom val; | |
178 | if (NILP (sym)) return 0; | |
179 | if (EQ (sym, QPRIMARY)) return XA_PRIMARY; | |
180 | if (EQ (sym, QSECONDARY)) return XA_SECONDARY; | |
181 | if (EQ (sym, QSTRING)) return XA_STRING; | |
182 | if (EQ (sym, QINTEGER)) return XA_INTEGER; | |
183 | if (EQ (sym, QATOM)) return XA_ATOM; | |
5c3a351a RS |
184 | if (EQ (sym, QCLIPBOARD)) return dpyinfo->Xatom_CLIPBOARD; |
185 | if (EQ (sym, QTIMESTAMP)) return dpyinfo->Xatom_TIMESTAMP; | |
186 | if (EQ (sym, QTEXT)) return dpyinfo->Xatom_TEXT; | |
e6c7c988 | 187 | if (EQ (sym, QCOMPOUND_TEXT)) return dpyinfo->Xatom_COMPOUND_TEXT; |
5109c8dd | 188 | if (EQ (sym, QUTF8_STRING)) return dpyinfo->Xatom_UTF8_STRING; |
5c3a351a RS |
189 | if (EQ (sym, QDELETE)) return dpyinfo->Xatom_DELETE; |
190 | if (EQ (sym, QMULTIPLE)) return dpyinfo->Xatom_MULTIPLE; | |
191 | if (EQ (sym, QINCR)) return dpyinfo->Xatom_INCR; | |
192 | if (EQ (sym, QEMACS_TMP)) return dpyinfo->Xatom_EMACS_TMP; | |
193 | if (EQ (sym, QTARGETS)) return dpyinfo->Xatom_TARGETS; | |
194 | if (EQ (sym, QNULL)) return dpyinfo->Xatom_NULL; | |
ede4db72 RS |
195 | #ifdef CUT_BUFFER_SUPPORT |
196 | if (EQ (sym, QCUT_BUFFER0)) return XA_CUT_BUFFER0; | |
197 | if (EQ (sym, QCUT_BUFFER1)) return XA_CUT_BUFFER1; | |
198 | if (EQ (sym, QCUT_BUFFER2)) return XA_CUT_BUFFER2; | |
199 | if (EQ (sym, QCUT_BUFFER3)) return XA_CUT_BUFFER3; | |
200 | if (EQ (sym, QCUT_BUFFER4)) return XA_CUT_BUFFER4; | |
201 | if (EQ (sym, QCUT_BUFFER5)) return XA_CUT_BUFFER5; | |
202 | if (EQ (sym, QCUT_BUFFER6)) return XA_CUT_BUFFER6; | |
203 | if (EQ (sym, QCUT_BUFFER7)) return XA_CUT_BUFFER7; | |
204 | #endif | |
205 | if (!SYMBOLP (sym)) abort (); | |
206 | ||
d5db4077 | 207 | TRACE1 (" XInternAtom %s", (char *) SDATA (SYMBOL_NAME (sym))); |
ede4db72 | 208 | BLOCK_INPUT; |
d5db4077 | 209 | val = XInternAtom (display, (char *) SDATA (SYMBOL_NAME (sym)), False); |
ede4db72 RS |
210 | UNBLOCK_INPUT; |
211 | return val; | |
212 | } | |
213 | ||
214 | ||
215 | /* This converts a server Atom to a Lisp symbol, avoiding server roundtrips | |
216 | and calls to intern whenever possible. */ | |
217 | ||
218 | static Lisp_Object | |
d9c0d4a3 GM |
219 | x_atom_to_symbol (dpy, atom) |
220 | Display *dpy; | |
ede4db72 RS |
221 | Atom atom; |
222 | { | |
d9c0d4a3 | 223 | struct x_display_info *dpyinfo; |
ede4db72 RS |
224 | char *str; |
225 | Lisp_Object val; | |
1b65481e | 226 | |
d9c0d4a3 GM |
227 | if (! atom) |
228 | return Qnil; | |
1b65481e | 229 | |
7da64e5c RS |
230 | switch (atom) |
231 | { | |
232 | case XA_PRIMARY: | |
233 | return QPRIMARY; | |
234 | case XA_SECONDARY: | |
235 | return QSECONDARY; | |
236 | case XA_STRING: | |
237 | return QSTRING; | |
238 | case XA_INTEGER: | |
239 | return QINTEGER; | |
240 | case XA_ATOM: | |
241 | return QATOM; | |
ede4db72 | 242 | #ifdef CUT_BUFFER_SUPPORT |
7da64e5c RS |
243 | case XA_CUT_BUFFER0: |
244 | return QCUT_BUFFER0; | |
245 | case XA_CUT_BUFFER1: | |
246 | return QCUT_BUFFER1; | |
247 | case XA_CUT_BUFFER2: | |
248 | return QCUT_BUFFER2; | |
249 | case XA_CUT_BUFFER3: | |
250 | return QCUT_BUFFER3; | |
251 | case XA_CUT_BUFFER4: | |
252 | return QCUT_BUFFER4; | |
253 | case XA_CUT_BUFFER5: | |
254 | return QCUT_BUFFER5; | |
255 | case XA_CUT_BUFFER6: | |
256 | return QCUT_BUFFER6; | |
257 | case XA_CUT_BUFFER7: | |
258 | return QCUT_BUFFER7; | |
ede4db72 | 259 | #endif |
7da64e5c RS |
260 | } |
261 | ||
d9c0d4a3 | 262 | dpyinfo = x_display_info_for_display (dpy); |
5c3a351a | 263 | if (atom == dpyinfo->Xatom_CLIPBOARD) |
7da64e5c | 264 | return QCLIPBOARD; |
5c3a351a | 265 | if (atom == dpyinfo->Xatom_TIMESTAMP) |
7da64e5c | 266 | return QTIMESTAMP; |
5c3a351a | 267 | if (atom == dpyinfo->Xatom_TEXT) |
7da64e5c | 268 | return QTEXT; |
e6c7c988 KH |
269 | if (atom == dpyinfo->Xatom_COMPOUND_TEXT) |
270 | return QCOMPOUND_TEXT; | |
5109c8dd KH |
271 | if (atom == dpyinfo->Xatom_UTF8_STRING) |
272 | return QUTF8_STRING; | |
5c3a351a | 273 | if (atom == dpyinfo->Xatom_DELETE) |
7da64e5c | 274 | return QDELETE; |
5c3a351a | 275 | if (atom == dpyinfo->Xatom_MULTIPLE) |
7da64e5c | 276 | return QMULTIPLE; |
5c3a351a | 277 | if (atom == dpyinfo->Xatom_INCR) |
7da64e5c | 278 | return QINCR; |
5c3a351a | 279 | if (atom == dpyinfo->Xatom_EMACS_TMP) |
7da64e5c | 280 | return QEMACS_TMP; |
5c3a351a | 281 | if (atom == dpyinfo->Xatom_TARGETS) |
7da64e5c | 282 | return QTARGETS; |
5c3a351a | 283 | if (atom == dpyinfo->Xatom_NULL) |
7da64e5c | 284 | return QNULL; |
ede4db72 RS |
285 | |
286 | BLOCK_INPUT; | |
d9c0d4a3 | 287 | str = XGetAtomName (dpy, atom); |
ede4db72 | 288 | UNBLOCK_INPUT; |
d9c0d4a3 | 289 | TRACE1 ("XGetAtomName --> %s", str); |
ede4db72 RS |
290 | if (! str) return Qnil; |
291 | val = intern (str); | |
292 | BLOCK_INPUT; | |
0158abbc | 293 | /* This was allocated by Xlib, so use XFree. */ |
ede4db72 RS |
294 | XFree (str); |
295 | UNBLOCK_INPUT; | |
296 | return val; | |
297 | } | |
8a89415e | 298 | \f |
ede4db72 | 299 | /* Do protocol to assert ourself as a selection owner. |
1b65481e | 300 | Update the Vselection_alist so that we can reply to later requests for |
ede4db72 RS |
301 | our selection. */ |
302 | ||
303 | static void | |
304 | x_own_selection (selection_name, selection_value) | |
305 | Lisp_Object selection_name, selection_value; | |
306 | { | |
378c33ca GM |
307 | struct frame *sf = SELECTED_FRAME (); |
308 | Window selecting_window = FRAME_X_WINDOW (sf); | |
309 | Display *display = FRAME_X_DISPLAY (sf); | |
7da64e5c | 310 | Time time = last_event_timestamp; |
ede4db72 | 311 | Atom selection_atom; |
378c33ca | 312 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (sf); |
5a499696 | 313 | int count; |
ede4db72 | 314 | |
b7826503 | 315 | CHECK_SYMBOL (selection_name); |
5c3a351a | 316 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection_name); |
ede4db72 RS |
317 | |
318 | BLOCK_INPUT; | |
5a499696 | 319 | count = x_catch_errors (display); |
ede4db72 | 320 | XSetSelectionOwner (display, selection_atom, selecting_window, time); |
a7b24d46 | 321 | x_check_errors (display, "Can't set selection: %s"); |
5a499696 | 322 | x_uncatch_errors (display, count); |
ede4db72 RS |
323 | UNBLOCK_INPUT; |
324 | ||
325 | /* Now update the local cache */ | |
326 | { | |
327 | Lisp_Object selection_time; | |
328 | Lisp_Object selection_data; | |
329 | Lisp_Object prev_value; | |
330 | ||
331 | selection_time = long_to_cons ((unsigned long) time); | |
332 | selection_data = Fcons (selection_name, | |
333 | Fcons (selection_value, | |
118bd841 | 334 | Fcons (selection_time, |
378c33ca | 335 | Fcons (selected_frame, Qnil)))); |
ede4db72 RS |
336 | prev_value = assq_no_quit (selection_name, Vselection_alist); |
337 | ||
338 | Vselection_alist = Fcons (selection_data, Vselection_alist); | |
339 | ||
340 | /* If we already owned the selection, remove the old selection data. | |
341 | Perhaps we should destructively modify it instead. | |
342 | Don't use Fdelq as that may QUIT. */ | |
343 | if (!NILP (prev_value)) | |
344 | { | |
345 | Lisp_Object rest; /* we know it's not the CAR, so it's easy. */ | |
346 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) | |
8e713be6 | 347 | if (EQ (prev_value, Fcar (XCDR (rest)))) |
ede4db72 | 348 | { |
f3fbd155 | 349 | XSETCDR (rest, Fcdr (XCDR (rest))); |
ede4db72 RS |
350 | break; |
351 | } | |
352 | } | |
353 | } | |
354 | } | |
355 | \f | |
356 | /* Given a selection-name and desired type, look up our local copy of | |
357 | the selection value and convert it to the type. | |
358 | The value is nil or a string. | |
5109c8dd KH |
359 | This function is used both for remote requests (LOCAL_REQUEST is zero) |
360 | and for local x-get-selection-internal (LOCAL_REQUEST is nonzero). | |
ede4db72 RS |
361 | |
362 | This calls random Lisp code, and may signal or gc. */ | |
363 | ||
364 | static Lisp_Object | |
5109c8dd | 365 | x_get_local_selection (selection_symbol, target_type, local_request) |
ede4db72 | 366 | Lisp_Object selection_symbol, target_type; |
5109c8dd | 367 | int local_request; |
ede4db72 RS |
368 | { |
369 | Lisp_Object local_value; | |
370 | Lisp_Object handler_fn, value, type, check; | |
371 | int count; | |
372 | ||
373 | local_value = assq_no_quit (selection_symbol, Vselection_alist); | |
374 | ||
375 | if (NILP (local_value)) return Qnil; | |
376 | ||
377 | /* TIMESTAMP and MULTIPLE are special cases 'cause that's easiest. */ | |
378 | if (EQ (target_type, QTIMESTAMP)) | |
379 | { | |
380 | handler_fn = Qnil; | |
8e713be6 | 381 | value = XCAR (XCDR (XCDR (local_value))); |
ede4db72 RS |
382 | } |
383 | #if 0 | |
384 | else if (EQ (target_type, QDELETE)) | |
385 | { | |
386 | handler_fn = Qnil; | |
387 | Fx_disown_selection_internal | |
388 | (selection_symbol, | |
8e713be6 | 389 | XCAR (XCDR (XCDR (local_value)))); |
ede4db72 RS |
390 | value = QNULL; |
391 | } | |
392 | #endif | |
393 | ||
394 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
395 | else if (CONSP (target_type) | |
8e713be6 | 396 | && XCAR (target_type) == QMULTIPLE) |
ede4db72 | 397 | { |
9d2d1dd8 KH |
398 | Lisp_Object pairs; |
399 | int size; | |
ede4db72 | 400 | int i; |
8e713be6 | 401 | pairs = XCDR (target_type); |
9d2d1dd8 | 402 | size = XVECTOR (pairs)->size; |
ede4db72 RS |
403 | /* If the target is MULTIPLE, then target_type looks like |
404 | (MULTIPLE . [[SELECTION1 TARGET1] [SELECTION2 TARGET2] ... ]) | |
405 | We modify the second element of each pair in the vector and | |
406 | return it as [[SELECTION1 <value1>] [SELECTION2 <value2>] ... ] | |
407 | */ | |
408 | for (i = 0; i < size; i++) | |
409 | { | |
9d2d1dd8 KH |
410 | Lisp_Object pair; |
411 | pair = XVECTOR (pairs)->contents [i]; | |
ede4db72 RS |
412 | XVECTOR (pair)->contents [1] |
413 | = x_get_local_selection (XVECTOR (pair)->contents [0], | |
5109c8dd KH |
414 | XVECTOR (pair)->contents [1], |
415 | local_request); | |
ede4db72 RS |
416 | } |
417 | return pairs; | |
418 | } | |
419 | #endif | |
420 | else | |
421 | { | |
422 | /* Don't allow a quit within the converter. | |
423 | When the user types C-g, he would be surprised | |
424 | if by luck it came during a converter. */ | |
aed13378 | 425 | count = SPECPDL_INDEX (); |
ede4db72 RS |
426 | specbind (Qinhibit_quit, Qt); |
427 | ||
b7826503 | 428 | CHECK_SYMBOL (target_type); |
ede4db72 | 429 | handler_fn = Fcdr (Fassq (target_type, Vselection_converter_alist)); |
4f06187f RS |
430 | /* gcpro is not needed here since nothing but HANDLER_FN |
431 | is live, and that ought to be a symbol. */ | |
432 | ||
1eb4d468 RS |
433 | if (!NILP (handler_fn)) |
434 | value = call3 (handler_fn, | |
5109c8dd | 435 | selection_symbol, (local_request ? Qnil : target_type), |
8e713be6 | 436 | XCAR (XCDR (local_value))); |
1eb4d468 RS |
437 | else |
438 | value = Qnil; | |
ede4db72 RS |
439 | unbind_to (count, Qnil); |
440 | } | |
441 | ||
442 | /* Make sure this value is of a type that we could transmit | |
443 | to another X client. */ | |
a87ed99c | 444 | |
ede4db72 RS |
445 | check = value; |
446 | if (CONSP (value) | |
8e713be6 KR |
447 | && SYMBOLP (XCAR (value))) |
448 | type = XCAR (value), | |
449 | check = XCDR (value); | |
1b65481e | 450 | |
ede4db72 RS |
451 | if (STRINGP (check) |
452 | || VECTORP (check) | |
453 | || SYMBOLP (check) | |
7da64e5c | 454 | || INTEGERP (check) |
ede4db72 RS |
455 | || NILP (value)) |
456 | return value; | |
a87ed99c | 457 | /* Check for a value that cons_to_long could handle. */ |
ede4db72 | 458 | else if (CONSP (check) |
8e713be6 KR |
459 | && INTEGERP (XCAR (check)) |
460 | && (INTEGERP (XCDR (check)) | |
ede4db72 | 461 | || |
8e713be6 KR |
462 | (CONSP (XCDR (check)) |
463 | && INTEGERP (XCAR (XCDR (check))) | |
464 | && NILP (XCDR (XCDR (check)))))) | |
ede4db72 RS |
465 | return value; |
466 | else | |
467 | return | |
468 | Fsignal (Qerror, | |
a87ed99c | 469 | Fcons (build_string ("invalid data returned by selection-conversion function"), |
ede4db72 RS |
470 | Fcons (handler_fn, Fcons (value, Qnil)))); |
471 | } | |
472 | \f | |
473 | /* Subroutines of x_reply_selection_request. */ | |
474 | ||
5d0ba25b | 475 | /* Send a SelectionNotify event to the requestor with property=None, |
ede4db72 RS |
476 | meaning we were unable to do what they wanted. */ |
477 | ||
478 | static void | |
479 | x_decline_selection_request (event) | |
480 | struct input_event *event; | |
481 | { | |
482 | XSelectionEvent reply; | |
d9c0d4a3 | 483 | int count; |
1b65481e | 484 | |
ede4db72 RS |
485 | reply.type = SelectionNotify; |
486 | reply.display = SELECTION_EVENT_DISPLAY (event); | |
5d0ba25b | 487 | reply.requestor = SELECTION_EVENT_REQUESTOR (event); |
ede4db72 RS |
488 | reply.selection = SELECTION_EVENT_SELECTION (event); |
489 | reply.time = SELECTION_EVENT_TIME (event); | |
490 | reply.target = SELECTION_EVENT_TARGET (event); | |
491 | reply.property = None; | |
492 | ||
d9c0d4a3 GM |
493 | /* The reason for the error may be that the receiver has |
494 | died in the meantime. Handle that case. */ | |
ede4db72 | 495 | BLOCK_INPUT; |
d9c0d4a3 GM |
496 | count = x_catch_errors (reply.display); |
497 | XSendEvent (reply.display, reply.requestor, False, 0L, (XEvent *) &reply); | |
5c3a351a | 498 | XFlush (reply.display); |
d9c0d4a3 | 499 | x_uncatch_errors (reply.display, count); |
ede4db72 RS |
500 | UNBLOCK_INPUT; |
501 | } | |
502 | ||
503 | /* This is the selection request currently being processed. | |
504 | It is set to zero when the request is fully processed. */ | |
505 | static struct input_event *x_selection_current_request; | |
506 | ||
ca29f2b8 GM |
507 | /* Display info in x_selection_request. */ |
508 | ||
509 | static struct x_display_info *selection_request_dpyinfo; | |
510 | ||
ede4db72 | 511 | /* Used as an unwind-protect clause so that, if a selection-converter signals |
2a1a4c9d | 512 | an error, we tell the requester that we were unable to do what they wanted |
ede4db72 RS |
513 | before we throw to top-level or go into the debugger or whatever. */ |
514 | ||
515 | static Lisp_Object | |
516 | x_selection_request_lisp_error (ignore) | |
517 | Lisp_Object ignore; | |
518 | { | |
ca29f2b8 GM |
519 | if (x_selection_current_request != 0 |
520 | && selection_request_dpyinfo->display) | |
ede4db72 RS |
521 | x_decline_selection_request (x_selection_current_request); |
522 | return Qnil; | |
523 | } | |
524 | \f | |
d1f21a66 RS |
525 | |
526 | /* This stuff is so that INCR selections are reentrant (that is, so we can | |
527 | be servicing multiple INCR selection requests simultaneously.) I haven't | |
528 | actually tested that yet. */ | |
529 | ||
530 | /* Keep a list of the property changes that are awaited. */ | |
531 | ||
532 | struct prop_location | |
533 | { | |
534 | int identifier; | |
535 | Display *display; | |
536 | Window window; | |
537 | Atom property; | |
538 | int desired_state; | |
539 | int arrived; | |
540 | struct prop_location *next; | |
541 | }; | |
542 | ||
543 | static struct prop_location *expect_property_change (); | |
544 | static void wait_for_property_change (); | |
545 | static void unexpect_property_change (); | |
546 | static int waiting_for_other_props_on_window (); | |
547 | ||
548 | static int prop_location_identifier; | |
549 | ||
550 | static Lisp_Object property_change_reply; | |
551 | ||
552 | static struct prop_location *property_change_reply_object; | |
553 | ||
554 | static struct prop_location *property_change_wait_list; | |
55b2d45d RS |
555 | |
556 | static Lisp_Object | |
557 | queue_selection_requests_unwind (frame) | |
558 | Lisp_Object frame; | |
559 | { | |
560 | FRAME_PTR f = XFRAME (frame); | |
561 | ||
562 | if (! NILP (frame)) | |
563 | x_stop_queuing_selection_requests (FRAME_X_DISPLAY (f)); | |
ab552306 | 564 | return Qnil; |
55b2d45d RS |
565 | } |
566 | ||
567 | /* Return some frame whose display info is DPYINFO. | |
568 | Return nil if there is none. */ | |
569 | ||
570 | static Lisp_Object | |
571 | some_frame_on_display (dpyinfo) | |
572 | struct x_display_info *dpyinfo; | |
573 | { | |
574 | Lisp_Object list, frame; | |
575 | ||
576 | FOR_EACH_FRAME (list, frame) | |
577 | { | |
578 | if (FRAME_X_DISPLAY_INFO (XFRAME (frame)) == dpyinfo) | |
579 | return frame; | |
580 | } | |
581 | ||
582 | return Qnil; | |
583 | } | |
d1f21a66 | 584 | \f |
ede4db72 RS |
585 | /* Send the reply to a selection request event EVENT. |
586 | TYPE is the type of selection data requested. | |
587 | DATA and SIZE describe the data to send, already converted. | |
588 | FORMAT is the unit-size (in bits) of the data to be transmitted. */ | |
589 | ||
590 | static void | |
591 | x_reply_selection_request (event, format, data, size, type) | |
592 | struct input_event *event; | |
593 | int format, size; | |
594 | unsigned char *data; | |
595 | Atom type; | |
596 | { | |
597 | XSelectionEvent reply; | |
598 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
5d0ba25b | 599 | Window window = SELECTION_EVENT_REQUESTOR (event); |
ede4db72 RS |
600 | int bytes_remaining; |
601 | int format_bytes = format/8; | |
602 | int max_bytes = SELECTION_QUANTUM (display); | |
5c3a351a | 603 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
5a499696 | 604 | int count; |
ede4db72 RS |
605 | |
606 | if (max_bytes > MAX_SELECTION_QUANTUM) | |
607 | max_bytes = MAX_SELECTION_QUANTUM; | |
608 | ||
609 | reply.type = SelectionNotify; | |
610 | reply.display = display; | |
5d0ba25b | 611 | reply.requestor = window; |
ede4db72 RS |
612 | reply.selection = SELECTION_EVENT_SELECTION (event); |
613 | reply.time = SELECTION_EVENT_TIME (event); | |
614 | reply.target = SELECTION_EVENT_TARGET (event); | |
615 | reply.property = SELECTION_EVENT_PROPERTY (event); | |
616 | if (reply.property == None) | |
617 | reply.property = reply.target; | |
618 | ||
619 | /* #### XChangeProperty can generate BadAlloc, and we must handle it! */ | |
afe1529d | 620 | BLOCK_INPUT; |
ad7f9d12 | 621 | count = x_catch_errors (display); |
ede4db72 | 622 | |
ede4db72 RS |
623 | /* Store the data on the requested property. |
624 | If the selection is large, only store the first N bytes of it. | |
625 | */ | |
626 | bytes_remaining = size * format_bytes; | |
627 | if (bytes_remaining <= max_bytes) | |
628 | { | |
629 | /* Send all the data at once, with minimal handshaking. */ | |
d9c0d4a3 | 630 | TRACE1 ("Sending all %d bytes", bytes_remaining); |
ede4db72 RS |
631 | XChangeProperty (display, window, reply.property, type, format, |
632 | PropModeReplace, data, size); | |
633 | /* At this point, the selection was successfully stored; ack it. */ | |
2f65feb6 | 634 | XSendEvent (display, window, False, 0L, (XEvent *) &reply); |
ede4db72 RS |
635 | } |
636 | else | |
637 | { | |
638 | /* Send an INCR selection. */ | |
d1f21a66 | 639 | struct prop_location *wait_object; |
afe1529d | 640 | int had_errors; |
55b2d45d | 641 | Lisp_Object frame; |
ede4db72 | 642 | |
55b2d45d RS |
643 | frame = some_frame_on_display (dpyinfo); |
644 | ||
645 | /* If the display no longer has frames, we can't expect | |
646 | to get many more selection requests from it, so don't | |
647 | bother trying to queue them. */ | |
648 | if (!NILP (frame)) | |
649 | { | |
650 | x_start_queuing_selection_requests (display); | |
651 | ||
652 | record_unwind_protect (queue_selection_requests_unwind, | |
653 | frame); | |
654 | } | |
2f65feb6 | 655 | |
19126e11 | 656 | if (x_window_to_frame (dpyinfo, window)) /* #### debug */ |
606140dd | 657 | error ("Attempt to transfer an INCR to ourself!"); |
1b65481e | 658 | |
d9c0d4a3 GM |
659 | TRACE2 ("Start sending %d bytes incrementally (%s)", |
660 | bytes_remaining, XGetAtomName (display, reply.property)); | |
d1f21a66 RS |
661 | wait_object = expect_property_change (display, window, reply.property, |
662 | PropertyDelete); | |
ede4db72 | 663 | |
d9c0d4a3 GM |
664 | TRACE1 ("Set %s to number of bytes to send", |
665 | XGetAtomName (display, reply.property)); | |
5c3a351a | 666 | XChangeProperty (display, window, reply.property, dpyinfo->Xatom_INCR, |
55b2d45d RS |
667 | 32, PropModeReplace, |
668 | (unsigned char *) &bytes_remaining, 1); | |
ede4db72 | 669 | XSelectInput (display, window, PropertyChangeMask); |
1b65481e | 670 | |
ede4db72 | 671 | /* Tell 'em the INCR data is there... */ |
d9c0d4a3 | 672 | TRACE0 ("Send SelectionNotify event"); |
55b2d45d | 673 | XSendEvent (display, window, False, 0L, (XEvent *) &reply); |
5c3a351a | 674 | XFlush (display); |
afe1529d RS |
675 | |
676 | had_errors = x_had_errors_p (display); | |
2f65feb6 | 677 | UNBLOCK_INPUT; |
ede4db72 | 678 | |
2a1a4c9d | 679 | /* First, wait for the requester to ack by deleting the property. |
ede4db72 | 680 | This can run random lisp code (process handlers) or signal. */ |
afe1529d | 681 | if (! had_errors) |
d9c0d4a3 GM |
682 | { |
683 | TRACE1 ("Waiting for ACK (deletion of %s)", | |
684 | XGetAtomName (display, reply.property)); | |
685 | wait_for_property_change (wait_object); | |
686 | } | |
ede4db72 | 687 | |
d9c0d4a3 | 688 | TRACE0 ("Got ACK"); |
ede4db72 RS |
689 | while (bytes_remaining) |
690 | { | |
691 | int i = ((bytes_remaining < max_bytes) | |
692 | ? bytes_remaining | |
693 | : max_bytes); | |
2f65feb6 RS |
694 | |
695 | BLOCK_INPUT; | |
696 | ||
d1f21a66 RS |
697 | wait_object |
698 | = expect_property_change (display, window, reply.property, | |
699 | PropertyDelete); | |
d9c0d4a3 GM |
700 | |
701 | TRACE1 ("Sending increment of %d bytes", i); | |
702 | TRACE1 ("Set %s to increment data", | |
703 | XGetAtomName (display, reply.property)); | |
1b65481e | 704 | |
ede4db72 RS |
705 | /* Append the next chunk of data to the property. */ |
706 | XChangeProperty (display, window, reply.property, type, format, | |
707 | PropModeAppend, data, i / format_bytes); | |
708 | bytes_remaining -= i; | |
709 | data += i; | |
5c3a351a | 710 | XFlush (display); |
afe1529d | 711 | had_errors = x_had_errors_p (display); |
2f65feb6 | 712 | UNBLOCK_INPUT; |
ede4db72 | 713 | |
afe1529d RS |
714 | if (had_errors) |
715 | break; | |
716 | ||
2a1a4c9d | 717 | /* Now wait for the requester to ack this chunk by deleting the |
d9c0d4a3 GM |
718 | property. This can run random lisp code or signal. */ |
719 | TRACE1 ("Waiting for increment ACK (deletion of %s)", | |
720 | XGetAtomName (display, reply.property)); | |
d1f21a66 | 721 | wait_for_property_change (wait_object); |
ede4db72 | 722 | } |
1b65481e | 723 | |
d9c0d4a3 GM |
724 | /* Now write a zero-length chunk to the property to tell the |
725 | requester that we're done. */ | |
2f65feb6 | 726 | BLOCK_INPUT; |
ede4db72 RS |
727 | if (! waiting_for_other_props_on_window (display, window)) |
728 | XSelectInput (display, window, 0L); | |
729 | ||
d9c0d4a3 GM |
730 | TRACE1 ("Set %s to a 0-length chunk to indicate EOF", |
731 | XGetAtomName (display, reply.property)); | |
ede4db72 RS |
732 | XChangeProperty (display, window, reply.property, type, format, |
733 | PropModeReplace, data, 0); | |
d9c0d4a3 | 734 | TRACE0 ("Done sending incrementally"); |
ede4db72 | 735 | } |
afe1529d | 736 | |
ceabd272 | 737 | /* rms, 2003-01-03: I think I have fixed this bug. */ |
47a6ac17 GM |
738 | /* The window we're communicating with may have been deleted |
739 | in the meantime (that's a real situation from a bug report). | |
740 | In this case, there may be events in the event queue still | |
741 | refering to the deleted window, and we'll get a BadWindow error | |
742 | in XTread_socket when processing the events. I don't have | |
743 | an idea how to fix that. gerd, 2001-01-98. */ | |
afe1529d | 744 | XFlush (display); |
5a499696 | 745 | x_uncatch_errors (display, count); |
afe1529d | 746 | UNBLOCK_INPUT; |
ede4db72 RS |
747 | } |
748 | \f | |
749 | /* Handle a SelectionRequest event EVENT. | |
750 | This is called from keyboard.c when such an event is found in the queue. */ | |
751 | ||
752 | void | |
753 | x_handle_selection_request (event) | |
754 | struct input_event *event; | |
755 | { | |
756 | struct gcpro gcpro1, gcpro2, gcpro3; | |
9d2d1dd8 | 757 | Lisp_Object local_selection_data; |
ede4db72 | 758 | Lisp_Object selection_symbol; |
9d2d1dd8 KH |
759 | Lisp_Object target_symbol; |
760 | Lisp_Object converted_selection; | |
ede4db72 | 761 | Time local_selection_time; |
9d2d1dd8 | 762 | Lisp_Object successful_p; |
ede4db72 | 763 | int count; |
5c3a351a RS |
764 | struct x_display_info *dpyinfo |
765 | = x_display_info_for_display (SELECTION_EVENT_DISPLAY (event)); | |
ede4db72 | 766 | |
9d2d1dd8 KH |
767 | local_selection_data = Qnil; |
768 | target_symbol = Qnil; | |
769 | converted_selection = Qnil; | |
770 | successful_p = Qnil; | |
771 | ||
ede4db72 RS |
772 | GCPRO3 (local_selection_data, converted_selection, target_symbol); |
773 | ||
d9c0d4a3 | 774 | selection_symbol = x_atom_to_symbol (SELECTION_EVENT_DISPLAY (event), |
ede4db72 RS |
775 | SELECTION_EVENT_SELECTION (event)); |
776 | ||
777 | local_selection_data = assq_no_quit (selection_symbol, Vselection_alist); | |
ede4db72 RS |
778 | |
779 | if (NILP (local_selection_data)) | |
780 | { | |
781 | /* Someone asked for the selection, but we don't have it any more. | |
782 | */ | |
783 | x_decline_selection_request (event); | |
784 | goto DONE; | |
785 | } | |
786 | ||
787 | local_selection_time = (Time) | |
8e713be6 | 788 | cons_to_long (XCAR (XCDR (XCDR (local_selection_data)))); |
ede4db72 RS |
789 | |
790 | if (SELECTION_EVENT_TIME (event) != CurrentTime | |
7da64e5c | 791 | && local_selection_time > SELECTION_EVENT_TIME (event)) |
ede4db72 RS |
792 | { |
793 | /* Someone asked for the selection, and we have one, but not the one | |
794 | they're looking for. | |
795 | */ | |
796 | x_decline_selection_request (event); | |
797 | goto DONE; | |
798 | } | |
799 | ||
ede4db72 | 800 | x_selection_current_request = event; |
331379bf | 801 | count = SPECPDL_INDEX (); |
ca29f2b8 | 802 | selection_request_dpyinfo = dpyinfo; |
ede4db72 RS |
803 | record_unwind_protect (x_selection_request_lisp_error, Qnil); |
804 | ||
d9c0d4a3 | 805 | target_symbol = x_atom_to_symbol (SELECTION_EVENT_DISPLAY (event), |
ede4db72 RS |
806 | SELECTION_EVENT_TARGET (event)); |
807 | ||
808 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
809 | if (EQ (target_symbol, QMULTIPLE)) | |
810 | target_symbol = fetch_multiple_target (event); | |
811 | #endif | |
1b65481e | 812 | |
ede4db72 | 813 | /* Convert lisp objects back into binary data */ |
1b65481e | 814 | |
ede4db72 | 815 | converted_selection |
5109c8dd | 816 | = x_get_local_selection (selection_symbol, target_symbol, 0); |
1b65481e | 817 | |
ede4db72 RS |
818 | if (! NILP (converted_selection)) |
819 | { | |
820 | unsigned char *data; | |
821 | unsigned int size; | |
822 | int format; | |
823 | Atom type; | |
aca39f42 RS |
824 | int nofree; |
825 | ||
2f65feb6 RS |
826 | lisp_data_to_selection_data (SELECTION_EVENT_DISPLAY (event), |
827 | converted_selection, | |
aca39f42 | 828 | &data, &type, &size, &format, &nofree); |
1b65481e | 829 | |
ede4db72 RS |
830 | x_reply_selection_request (event, format, data, size, type); |
831 | successful_p = Qt; | |
832 | ||
833 | /* Indicate we have successfully processed this event. */ | |
7da64e5c | 834 | x_selection_current_request = 0; |
ede4db72 | 835 | |
4feb31b2 | 836 | /* Use xfree, not XFree, because lisp_data_to_selection_data |
0158abbc | 837 | calls xmalloc itself. */ |
aca39f42 | 838 | if (!nofree) |
4feb31b2 | 839 | xfree (data); |
ede4db72 RS |
840 | } |
841 | unbind_to (count, Qnil); | |
842 | ||
843 | DONE: | |
844 | ||
ede4db72 RS |
845 | /* Let random lisp code notice that the selection has been asked for. */ |
846 | { | |
9d2d1dd8 KH |
847 | Lisp_Object rest; |
848 | rest = Vx_sent_selection_hooks; | |
ede4db72 RS |
849 | if (!EQ (rest, Qunbound)) |
850 | for (; CONSP (rest); rest = Fcdr (rest)) | |
851 | call3 (Fcar (rest), selection_symbol, target_symbol, successful_p); | |
852 | } | |
4f06187f RS |
853 | |
854 | UNGCPRO; | |
ede4db72 RS |
855 | } |
856 | \f | |
e18e6130 | 857 | /* Handle a SelectionClear event EVENT, which indicates that some |
ede4db72 RS |
858 | client cleared out our previously asserted selection. |
859 | This is called from keyboard.c when such an event is found in the queue. */ | |
860 | ||
861 | void | |
862 | x_handle_selection_clear (event) | |
863 | struct input_event *event; | |
864 | { | |
865 | Display *display = SELECTION_EVENT_DISPLAY (event); | |
866 | Atom selection = SELECTION_EVENT_SELECTION (event); | |
867 | Time changed_owner_time = SELECTION_EVENT_TIME (event); | |
1b65481e | 868 | |
ede4db72 RS |
869 | Lisp_Object selection_symbol, local_selection_data; |
870 | Time local_selection_time; | |
5c3a351a | 871 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
e18e6130 RS |
872 | struct x_display_info *t_dpyinfo; |
873 | ||
874 | /* If the new selection owner is also Emacs, | |
875 | don't clear the new selection. */ | |
876 | BLOCK_INPUT; | |
877 | /* Check each display on the same terminal, | |
878 | to see if this Emacs job now owns the selection | |
879 | through that display. */ | |
880 | for (t_dpyinfo = x_display_list; t_dpyinfo; t_dpyinfo = t_dpyinfo->next) | |
881 | if (t_dpyinfo->kboard == dpyinfo->kboard) | |
882 | { | |
883 | Window owner_window | |
884 | = XGetSelectionOwner (t_dpyinfo->display, selection); | |
885 | if (x_window_to_frame (t_dpyinfo, owner_window) != 0) | |
886 | { | |
887 | UNBLOCK_INPUT; | |
888 | return; | |
889 | } | |
890 | } | |
891 | UNBLOCK_INPUT; | |
ede4db72 | 892 | |
d9c0d4a3 | 893 | selection_symbol = x_atom_to_symbol (display, selection); |
ede4db72 RS |
894 | |
895 | local_selection_data = assq_no_quit (selection_symbol, Vselection_alist); | |
896 | ||
897 | /* Well, we already believe that we don't own it, so that's just fine. */ | |
898 | if (NILP (local_selection_data)) return; | |
899 | ||
900 | local_selection_time = (Time) | |
8e713be6 | 901 | cons_to_long (XCAR (XCDR (XCDR (local_selection_data)))); |
ede4db72 RS |
902 | |
903 | /* This SelectionClear is for a selection that we no longer own, so we can | |
904 | disregard it. (That is, we have reasserted the selection since this | |
905 | request was generated.) */ | |
906 | ||
907 | if (changed_owner_time != CurrentTime | |
908 | && local_selection_time > changed_owner_time) | |
909 | return; | |
910 | ||
911 | /* Otherwise, we're really honest and truly being told to drop it. | |
912 | Don't use Fdelq as that may QUIT;. */ | |
913 | ||
914 | if (EQ (local_selection_data, Fcar (Vselection_alist))) | |
915 | Vselection_alist = Fcdr (Vselection_alist); | |
916 | else | |
917 | { | |
918 | Lisp_Object rest; | |
919 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) | |
8e713be6 | 920 | if (EQ (local_selection_data, Fcar (XCDR (rest)))) |
ede4db72 | 921 | { |
f3fbd155 | 922 | XSETCDR (rest, Fcdr (XCDR (rest))); |
ede4db72 RS |
923 | break; |
924 | } | |
925 | } | |
926 | ||
927 | /* Let random lisp code notice that the selection has been stolen. */ | |
928 | ||
929 | { | |
d1f21a66 RS |
930 | Lisp_Object rest; |
931 | rest = Vx_lost_selection_hooks; | |
ede4db72 | 932 | if (!EQ (rest, Qunbound)) |
d1f21a66 RS |
933 | { |
934 | for (; CONSP (rest); rest = Fcdr (rest)) | |
935 | call1 (Fcar (rest), selection_symbol); | |
7c6b2ea4 | 936 | prepare_menu_bars (); |
3007ebfb | 937 | redisplay_preserve_echo_area (20); |
d1f21a66 | 938 | } |
ede4db72 RS |
939 | } |
940 | } | |
941 | ||
118bd841 RS |
942 | /* Clear all selections that were made from frame F. |
943 | We do this when about to delete a frame. */ | |
944 | ||
945 | void | |
946 | x_clear_frame_selections (f) | |
947 | FRAME_PTR f; | |
948 | { | |
949 | Lisp_Object frame; | |
950 | Lisp_Object rest; | |
951 | ||
90851bbe | 952 | XSETFRAME (frame, f); |
118bd841 RS |
953 | |
954 | /* Otherwise, we're really honest and truly being told to drop it. | |
955 | Don't use Fdelq as that may QUIT;. */ | |
956 | ||
0d199f9c RS |
957 | /* Delete elements from the beginning of Vselection_alist. */ |
958 | while (!NILP (Vselection_alist) | |
959 | && EQ (frame, Fcar (Fcdr (Fcdr (Fcdr (Fcar (Vselection_alist))))))) | |
960 | { | |
961 | /* Let random Lisp code notice that the selection has been stolen. */ | |
962 | Lisp_Object hooks, selection_symbol; | |
963 | ||
964 | hooks = Vx_lost_selection_hooks; | |
965 | selection_symbol = Fcar (Fcar (Vselection_alist)); | |
966 | ||
967 | if (!EQ (hooks, Qunbound)) | |
968 | { | |
969 | for (; CONSP (hooks); hooks = Fcdr (hooks)) | |
970 | call1 (Fcar (hooks), selection_symbol); | |
996b804d MB |
971 | #if 0 /* This can crash when deleting a frame |
972 | from x_connection_closed. Anyway, it seems unnecessary; | |
973 | something else should cause a redisplay. */ | |
3007ebfb | 974 | redisplay_preserve_echo_area (21); |
996b804d | 975 | #endif |
0d199f9c RS |
976 | } |
977 | ||
978 | Vselection_alist = Fcdr (Vselection_alist); | |
979 | } | |
980 | ||
981 | /* Delete elements after the beginning of Vselection_alist. */ | |
118bd841 | 982 | for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest)) |
8e713be6 | 983 | if (EQ (frame, Fcar (Fcdr (Fcdr (Fcdr (Fcar (XCDR (rest)))))))) |
118bd841 RS |
984 | { |
985 | /* Let random Lisp code notice that the selection has been stolen. */ | |
986 | Lisp_Object hooks, selection_symbol; | |
987 | ||
988 | hooks = Vx_lost_selection_hooks; | |
8e713be6 | 989 | selection_symbol = Fcar (Fcar (XCDR (rest))); |
118bd841 RS |
990 | |
991 | if (!EQ (hooks, Qunbound)) | |
992 | { | |
993 | for (; CONSP (hooks); hooks = Fcdr (hooks)) | |
994 | call1 (Fcar (hooks), selection_symbol); | |
996b804d | 995 | #if 0 /* See above */ |
3007ebfb | 996 | redisplay_preserve_echo_area (22); |
996b804d | 997 | #endif |
118bd841 | 998 | } |
f3fbd155 | 999 | XSETCDR (rest, Fcdr (XCDR (rest))); |
118bd841 RS |
1000 | break; |
1001 | } | |
1002 | } | |
ede4db72 | 1003 | \f |
ede4db72 RS |
1004 | /* Nonzero if any properties for DISPLAY and WINDOW |
1005 | are on the list of what we are waiting for. */ | |
1006 | ||
1007 | static int | |
1008 | waiting_for_other_props_on_window (display, window) | |
1009 | Display *display; | |
1010 | Window window; | |
1011 | { | |
1012 | struct prop_location *rest = property_change_wait_list; | |
1013 | while (rest) | |
1014 | if (rest->display == display && rest->window == window) | |
1015 | return 1; | |
1016 | else | |
1017 | rest = rest->next; | |
1018 | return 0; | |
1019 | } | |
1020 | ||
1021 | /* Add an entry to the list of property changes we are waiting for. | |
1022 | DISPLAY, WINDOW, PROPERTY, STATE describe what we will wait for. | |
1023 | The return value is a number that uniquely identifies | |
1024 | this awaited property change. */ | |
1025 | ||
d1f21a66 | 1026 | static struct prop_location * |
ede4db72 RS |
1027 | expect_property_change (display, window, property, state) |
1028 | Display *display; | |
1029 | Window window; | |
6c070502 | 1030 | Atom property; |
ede4db72 RS |
1031 | int state; |
1032 | { | |
d9c0d4a3 | 1033 | struct prop_location *pl = (struct prop_location *) xmalloc (sizeof *pl); |
2f65feb6 | 1034 | pl->identifier = ++prop_location_identifier; |
ede4db72 RS |
1035 | pl->display = display; |
1036 | pl->window = window; | |
1037 | pl->property = property; | |
1038 | pl->desired_state = state; | |
1039 | pl->next = property_change_wait_list; | |
d1f21a66 | 1040 | pl->arrived = 0; |
ede4db72 | 1041 | property_change_wait_list = pl; |
d1f21a66 | 1042 | return pl; |
ede4db72 RS |
1043 | } |
1044 | ||
1045 | /* Delete an entry from the list of property changes we are waiting for. | |
2f65feb6 | 1046 | IDENTIFIER is the number that uniquely identifies the entry. */ |
ede4db72 RS |
1047 | |
1048 | static void | |
d1f21a66 RS |
1049 | unexpect_property_change (location) |
1050 | struct prop_location *location; | |
ede4db72 RS |
1051 | { |
1052 | struct prop_location *prev = 0, *rest = property_change_wait_list; | |
1053 | while (rest) | |
1054 | { | |
d1f21a66 | 1055 | if (rest == location) |
ede4db72 RS |
1056 | { |
1057 | if (prev) | |
1058 | prev->next = rest->next; | |
1059 | else | |
1060 | property_change_wait_list = rest->next; | |
4feb31b2 | 1061 | xfree (rest); |
ede4db72 RS |
1062 | return; |
1063 | } | |
1064 | prev = rest; | |
1065 | rest = rest->next; | |
1066 | } | |
1067 | } | |
1068 | ||
2f65feb6 RS |
1069 | /* Remove the property change expectation element for IDENTIFIER. */ |
1070 | ||
1071 | static Lisp_Object | |
1072 | wait_for_property_change_unwind (identifierval) | |
1073 | Lisp_Object identifierval; | |
1074 | { | |
c4898489 | 1075 | unexpect_property_change ((struct prop_location *) |
8e713be6 KR |
1076 | (XFASTINT (XCAR (identifierval)) << 16 |
1077 | | XFASTINT (XCDR (identifierval)))); | |
ab552306 | 1078 | return Qnil; |
2f65feb6 RS |
1079 | } |
1080 | ||
ede4db72 | 1081 | /* Actually wait for a property change. |
2f65feb6 | 1082 | IDENTIFIER should be the value that expect_property_change returned. */ |
ede4db72 RS |
1083 | |
1084 | static void | |
d1f21a66 RS |
1085 | wait_for_property_change (location) |
1086 | struct prop_location *location; | |
ede4db72 | 1087 | { |
2f65feb6 | 1088 | int secs, usecs; |
aed13378 | 1089 | int count = SPECPDL_INDEX (); |
d1f21a66 RS |
1090 | Lisp_Object tem; |
1091 | ||
c4898489 | 1092 | tem = Fcons (Qnil, Qnil); |
f3fbd155 KR |
1093 | XSETCARFASTINT (tem, (EMACS_UINT)location >> 16); |
1094 | XSETCDRFASTINT (tem, (EMACS_UINT)location & 0xffff); | |
2f65feb6 RS |
1095 | |
1096 | /* Make sure to do unexpect_property_change if we quit or err. */ | |
d1f21a66 | 1097 | record_unwind_protect (wait_for_property_change_unwind, tem); |
2f65feb6 | 1098 | |
f3fbd155 | 1099 | XSETCAR (property_change_reply, Qnil); |
2f65feb6 | 1100 | |
afe1529d RS |
1101 | property_change_reply_object = location; |
1102 | /* If the event we are waiting for arrives beyond here, it will set | |
1103 | property_change_reply, because property_change_reply_object says so. */ | |
d1f21a66 RS |
1104 | if (! location->arrived) |
1105 | { | |
d1f21a66 RS |
1106 | secs = x_selection_timeout / 1000; |
1107 | usecs = (x_selection_timeout % 1000) * 1000; | |
d9c0d4a3 | 1108 | TRACE2 (" Waiting %d secs, %d usecs", secs, usecs); |
d1f21a66 RS |
1109 | wait_reading_process_input (secs, usecs, property_change_reply, 0); |
1110 | ||
8e713be6 | 1111 | if (NILP (XCAR (property_change_reply))) |
d9c0d4a3 GM |
1112 | { |
1113 | TRACE0 (" Timed out"); | |
1114 | error ("Timed out waiting for property-notify event"); | |
1115 | } | |
d1f21a66 | 1116 | } |
2f65feb6 RS |
1117 | |
1118 | unbind_to (count, Qnil); | |
ede4db72 RS |
1119 | } |
1120 | ||
1121 | /* Called from XTread_socket in response to a PropertyNotify event. */ | |
1122 | ||
1123 | void | |
1124 | x_handle_property_notify (event) | |
1125 | XPropertyEvent *event; | |
1126 | { | |
1127 | struct prop_location *prev = 0, *rest = property_change_wait_list; | |
d9c0d4a3 | 1128 | |
ede4db72 RS |
1129 | while (rest) |
1130 | { | |
1131 | if (rest->property == event->atom | |
1132 | && rest->window == event->window | |
1133 | && rest->display == event->display | |
1134 | && rest->desired_state == event->state) | |
1135 | { | |
d9c0d4a3 GM |
1136 | TRACE2 ("Expected %s of property %s", |
1137 | (event->state == PropertyDelete ? "deletion" : "change"), | |
1138 | XGetAtomName (event->display, event->atom)); | |
ede4db72 | 1139 | |
d1f21a66 RS |
1140 | rest->arrived = 1; |
1141 | ||
ede4db72 RS |
1142 | /* If this is the one wait_for_property_change is waiting for, |
1143 | tell it to wake up. */ | |
d1f21a66 | 1144 | if (rest == property_change_reply_object) |
f3fbd155 | 1145 | XSETCAR (property_change_reply, Qt); |
ede4db72 RS |
1146 | |
1147 | if (prev) | |
1148 | prev->next = rest->next; | |
1149 | else | |
1150 | property_change_wait_list = rest->next; | |
4feb31b2 | 1151 | xfree (rest); |
ede4db72 RS |
1152 | return; |
1153 | } | |
1b65481e | 1154 | |
ede4db72 RS |
1155 | prev = rest; |
1156 | rest = rest->next; | |
1157 | } | |
ede4db72 RS |
1158 | } |
1159 | ||
1160 | ||
1161 | \f | |
1162 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1163 | ||
1164 | static Lisp_Object | |
1165 | fetch_multiple_target (event) | |
1166 | XSelectionRequestEvent *event; | |
1167 | { | |
1168 | Display *display = event->display; | |
5d0ba25b | 1169 | Window window = event->requestor; |
ede4db72 RS |
1170 | Atom target = event->target; |
1171 | Atom selection_atom = event->selection; | |
1172 | int result; | |
1173 | ||
1174 | return | |
1175 | Fcons (QMULTIPLE, | |
1176 | x_get_window_property_as_lisp_data (display, window, target, | |
1177 | QMULTIPLE, selection_atom)); | |
1178 | } | |
1179 | ||
1180 | static Lisp_Object | |
1181 | copy_multiple_data (obj) | |
1182 | Lisp_Object obj; | |
1183 | { | |
1184 | Lisp_Object vec; | |
1185 | int i; | |
1186 | int size; | |
1187 | if (CONSP (obj)) | |
8e713be6 | 1188 | return Fcons (XCAR (obj), copy_multiple_data (XCDR (obj))); |
1b65481e | 1189 | |
b7826503 | 1190 | CHECK_VECTOR (obj); |
ede4db72 RS |
1191 | vec = Fmake_vector (size = XVECTOR (obj)->size, Qnil); |
1192 | for (i = 0; i < size; i++) | |
1193 | { | |
1194 | Lisp_Object vec2 = XVECTOR (obj)->contents [i]; | |
b7826503 | 1195 | CHECK_VECTOR (vec2); |
ede4db72 RS |
1196 | if (XVECTOR (vec2)->size != 2) |
1197 | /* ??? Confusing error message */ | |
1198 | Fsignal (Qerror, Fcons (build_string ("vectors must be of length 2"), | |
1199 | Fcons (vec2, Qnil))); | |
1200 | XVECTOR (vec)->contents [i] = Fmake_vector (2, Qnil); | |
1201 | XVECTOR (XVECTOR (vec)->contents [i])->contents [0] | |
1202 | = XVECTOR (vec2)->contents [0]; | |
1203 | XVECTOR (XVECTOR (vec)->contents [i])->contents [1] | |
1204 | = XVECTOR (vec2)->contents [1]; | |
1205 | } | |
1206 | return vec; | |
1207 | } | |
1208 | ||
1209 | #endif | |
1210 | ||
1211 | \f | |
1212 | /* Variables for communication with x_handle_selection_notify. */ | |
1213 | static Atom reading_which_selection; | |
1214 | static Lisp_Object reading_selection_reply; | |
1215 | static Window reading_selection_window; | |
1216 | ||
1217 | /* Do protocol to read selection-data from the server. | |
1218 | Converts this to Lisp data and returns it. */ | |
1219 | ||
1220 | static Lisp_Object | |
1221 | x_get_foreign_selection (selection_symbol, target_type) | |
1222 | Lisp_Object selection_symbol, target_type; | |
1223 | { | |
378c33ca GM |
1224 | struct frame *sf = SELECTED_FRAME (); |
1225 | Window requestor_window = FRAME_X_WINDOW (sf); | |
1226 | Display *display = FRAME_X_DISPLAY (sf); | |
1227 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
5d0ba25b | 1228 | Time requestor_time = last_event_timestamp; |
5c3a351a RS |
1229 | Atom target_property = dpyinfo->Xatom_EMACS_TMP; |
1230 | Atom selection_atom = symbol_to_x_atom (dpyinfo, display, selection_symbol); | |
ede4db72 | 1231 | Atom type_atom; |
80da0190 | 1232 | int secs, usecs; |
5a499696 | 1233 | int count; |
55b2d45d | 1234 | Lisp_Object frame; |
ede4db72 RS |
1235 | |
1236 | if (CONSP (target_type)) | |
8e713be6 | 1237 | type_atom = symbol_to_x_atom (dpyinfo, display, XCAR (target_type)); |
ede4db72 | 1238 | else |
5c3a351a | 1239 | type_atom = symbol_to_x_atom (dpyinfo, display, target_type); |
ede4db72 RS |
1240 | |
1241 | BLOCK_INPUT; | |
1b65481e | 1242 | |
5a499696 | 1243 | count = x_catch_errors (display); |
1b65481e | 1244 | |
d9c0d4a3 GM |
1245 | TRACE2 ("Get selection %s, type %s", |
1246 | XGetAtomName (display, type_atom), | |
1247 | XGetAtomName (display, target_property)); | |
1248 | ||
ede4db72 | 1249 | XConvertSelection (display, selection_atom, type_atom, target_property, |
5d0ba25b | 1250 | requestor_window, requestor_time); |
5c3a351a | 1251 | XFlush (display); |
ede4db72 RS |
1252 | |
1253 | /* Prepare to block until the reply has been read. */ | |
5d0ba25b | 1254 | reading_selection_window = requestor_window; |
ede4db72 | 1255 | reading_which_selection = selection_atom; |
f3fbd155 | 1256 | XSETCAR (reading_selection_reply, Qnil); |
55b2d45d RS |
1257 | |
1258 | frame = some_frame_on_display (dpyinfo); | |
1259 | ||
1260 | /* If the display no longer has frames, we can't expect | |
1261 | to get many more selection requests from it, so don't | |
1262 | bother trying to queue them. */ | |
1263 | if (!NILP (frame)) | |
1264 | { | |
1265 | x_start_queuing_selection_requests (display); | |
1266 | ||
1267 | record_unwind_protect (queue_selection_requests_unwind, | |
1268 | frame); | |
1269 | } | |
ede4db72 RS |
1270 | UNBLOCK_INPUT; |
1271 | ||
80da0190 RS |
1272 | /* This allows quits. Also, don't wait forever. */ |
1273 | secs = x_selection_timeout / 1000; | |
1274 | usecs = (x_selection_timeout % 1000) * 1000; | |
d9c0d4a3 | 1275 | TRACE1 (" Start waiting %d secs for SelectionNotify", secs); |
80da0190 | 1276 | wait_reading_process_input (secs, usecs, reading_selection_reply, 0); |
d9c0d4a3 | 1277 | TRACE1 (" Got event = %d", !NILP (XCAR (reading_selection_reply))); |
ede4db72 | 1278 | |
7c6b2ea4 | 1279 | BLOCK_INPUT; |
a7b24d46 | 1280 | x_check_errors (display, "Cannot get selection: %s"); |
5a499696 | 1281 | x_uncatch_errors (display, count); |
7c6b2ea4 RS |
1282 | UNBLOCK_INPUT; |
1283 | ||
8e713be6 | 1284 | if (NILP (XCAR (reading_selection_reply))) |
606140dd | 1285 | error ("Timed out waiting for reply from selection owner"); |
8e713be6 | 1286 | if (EQ (XCAR (reading_selection_reply), Qlambda)) |
d5db4077 | 1287 | error ("No `%s' selection", SDATA (SYMBOL_NAME (selection_symbol))); |
ede4db72 RS |
1288 | |
1289 | /* Otherwise, the selection is waiting for us on the requested property. */ | |
1290 | return | |
5d0ba25b | 1291 | x_get_window_property_as_lisp_data (display, requestor_window, |
ede4db72 RS |
1292 | target_property, target_type, |
1293 | selection_atom); | |
1294 | } | |
1295 | \f | |
1296 | /* Subroutines of x_get_window_property_as_lisp_data */ | |
1297 | ||
4feb31b2 | 1298 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1299 | |
ede4db72 RS |
1300 | static void |
1301 | x_get_window_property (display, window, property, data_ret, bytes_ret, | |
1302 | actual_type_ret, actual_format_ret, actual_size_ret, | |
1303 | delete_p) | |
1304 | Display *display; | |
1305 | Window window; | |
1306 | Atom property; | |
1307 | unsigned char **data_ret; | |
1308 | int *bytes_ret; | |
1309 | Atom *actual_type_ret; | |
1310 | int *actual_format_ret; | |
1311 | unsigned long *actual_size_ret; | |
1312 | int delete_p; | |
1313 | { | |
1314 | int total_size; | |
1315 | unsigned long bytes_remaining; | |
1316 | int offset = 0; | |
1317 | unsigned char *tmp_data = 0; | |
1318 | int result; | |
1319 | int buffer_size = SELECTION_QUANTUM (display); | |
1b65481e | 1320 | |
d9c0d4a3 GM |
1321 | if (buffer_size > MAX_SELECTION_QUANTUM) |
1322 | buffer_size = MAX_SELECTION_QUANTUM; | |
1b65481e | 1323 | |
ede4db72 | 1324 | BLOCK_INPUT; |
1b65481e | 1325 | |
ede4db72 RS |
1326 | /* First probe the thing to find out how big it is. */ |
1327 | result = XGetWindowProperty (display, window, property, | |
137edb72 | 1328 | 0L, 0L, False, AnyPropertyType, |
ede4db72 RS |
1329 | actual_type_ret, actual_format_ret, |
1330 | actual_size_ret, | |
1331 | &bytes_remaining, &tmp_data); | |
ede4db72 RS |
1332 | if (result != Success) |
1333 | { | |
2f65feb6 | 1334 | UNBLOCK_INPUT; |
ede4db72 RS |
1335 | *data_ret = 0; |
1336 | *bytes_ret = 0; | |
1337 | return; | |
1338 | } | |
1b65481e | 1339 | |
0158abbc RS |
1340 | /* This was allocated by Xlib, so use XFree. */ |
1341 | XFree ((char *) tmp_data); | |
1b65481e | 1342 | |
ede4db72 RS |
1343 | if (*actual_type_ret == None || *actual_format_ret == 0) |
1344 | { | |
2f65feb6 | 1345 | UNBLOCK_INPUT; |
ede4db72 RS |
1346 | return; |
1347 | } | |
1348 | ||
1349 | total_size = bytes_remaining + 1; | |
1350 | *data_ret = (unsigned char *) xmalloc (total_size); | |
1b65481e | 1351 | |
2a1a4c9d | 1352 | /* Now read, until we've gotten it all. */ |
ede4db72 RS |
1353 | while (bytes_remaining) |
1354 | { | |
d9c0d4a3 | 1355 | #ifdef TRACE_SELECTION |
ede4db72 RS |
1356 | int last = bytes_remaining; |
1357 | #endif | |
1358 | result | |
1359 | = XGetWindowProperty (display, window, property, | |
137edb72 | 1360 | (long)offset/4, (long)buffer_size/4, |
2f65feb6 | 1361 | False, |
ede4db72 RS |
1362 | AnyPropertyType, |
1363 | actual_type_ret, actual_format_ret, | |
1364 | actual_size_ret, &bytes_remaining, &tmp_data); | |
d9c0d4a3 GM |
1365 | |
1366 | TRACE2 ("Read %ld bytes from property %s", | |
1367 | last - bytes_remaining, | |
1368 | XGetAtomName (display, property)); | |
1369 | ||
ede4db72 RS |
1370 | /* If this doesn't return Success at this point, it means that |
1371 | some clod deleted the selection while we were in the midst of | |
d9c0d4a3 GM |
1372 | reading it. Deal with that, I guess.... */ |
1373 | if (result != Success) | |
1374 | break; | |
ede4db72 RS |
1375 | *actual_size_ret *= *actual_format_ret / 8; |
1376 | bcopy (tmp_data, (*data_ret) + offset, *actual_size_ret); | |
1377 | offset += *actual_size_ret; | |
1b65481e | 1378 | |
0158abbc RS |
1379 | /* This was allocated by Xlib, so use XFree. */ |
1380 | XFree ((char *) tmp_data); | |
ede4db72 | 1381 | } |
2f65feb6 | 1382 | |
5c3a351a | 1383 | XFlush (display); |
ede4db72 RS |
1384 | UNBLOCK_INPUT; |
1385 | *bytes_ret = offset; | |
1386 | } | |
1387 | \f | |
4feb31b2 | 1388 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1389 | |
ede4db72 RS |
1390 | static void |
1391 | receive_incremental_selection (display, window, property, target_type, | |
1392 | min_size_bytes, data_ret, size_bytes_ret, | |
1393 | type_ret, format_ret, size_ret) | |
1394 | Display *display; | |
1395 | Window window; | |
1396 | Atom property; | |
1397 | Lisp_Object target_type; /* for error messages only */ | |
1398 | unsigned int min_size_bytes; | |
1399 | unsigned char **data_ret; | |
1400 | int *size_bytes_ret; | |
1401 | Atom *type_ret; | |
1402 | unsigned long *size_ret; | |
1403 | int *format_ret; | |
1404 | { | |
1405 | int offset = 0; | |
d1f21a66 | 1406 | struct prop_location *wait_object; |
ede4db72 RS |
1407 | *size_bytes_ret = min_size_bytes; |
1408 | *data_ret = (unsigned char *) xmalloc (*size_bytes_ret); | |
d9c0d4a3 GM |
1409 | |
1410 | TRACE1 ("Read %d bytes incrementally", min_size_bytes); | |
2f65feb6 RS |
1411 | |
1412 | /* At this point, we have read an INCR property. | |
1413 | Delete the property to ack it. | |
1414 | (But first, prepare to receive the next event in this handshake.) | |
ede4db72 RS |
1415 | |
1416 | Now, we must loop, waiting for the sending window to put a value on | |
1417 | that property, then reading the property, then deleting it to ack. | |
1418 | We are done when the sender places a property of length 0. | |
1419 | */ | |
2f65feb6 RS |
1420 | BLOCK_INPUT; |
1421 | XSelectInput (display, window, STANDARD_EVENT_SET | PropertyChangeMask); | |
d9c0d4a3 GM |
1422 | TRACE1 (" Delete property %s", |
1423 | XSYMBOL (x_atom_to_symbol (display, property))->name->data); | |
2f65feb6 | 1424 | XDeleteProperty (display, window, property); |
d9c0d4a3 GM |
1425 | TRACE1 (" Expect new value of property %s", |
1426 | XSYMBOL (x_atom_to_symbol (display, property))->name->data); | |
d1f21a66 RS |
1427 | wait_object = expect_property_change (display, window, property, |
1428 | PropertyNewValue); | |
5c3a351a | 1429 | XFlush (display); |
2f65feb6 RS |
1430 | UNBLOCK_INPUT; |
1431 | ||
ede4db72 RS |
1432 | while (1) |
1433 | { | |
1434 | unsigned char *tmp_data; | |
1435 | int tmp_size_bytes; | |
d9c0d4a3 GM |
1436 | |
1437 | TRACE0 (" Wait for property change"); | |
d1f21a66 | 1438 | wait_for_property_change (wait_object); |
1b65481e | 1439 | |
ede4db72 | 1440 | /* expect it again immediately, because x_get_window_property may |
2a1a4c9d | 1441 | .. no it won't, I don't get it. |
d9c0d4a3 GM |
1442 | .. Ok, I get it now, the Xt code that implements INCR is broken. */ |
1443 | TRACE0 (" Get property value"); | |
ede4db72 RS |
1444 | x_get_window_property (display, window, property, |
1445 | &tmp_data, &tmp_size_bytes, | |
1446 | type_ret, format_ret, size_ret, 1); | |
1447 | ||
d9c0d4a3 GM |
1448 | TRACE1 (" Read increment of %d bytes", tmp_size_bytes); |
1449 | ||
ede4db72 RS |
1450 | if (tmp_size_bytes == 0) /* we're done */ |
1451 | { | |
d9c0d4a3 GM |
1452 | TRACE0 ("Done reading incrementally"); |
1453 | ||
2f65feb6 RS |
1454 | if (! waiting_for_other_props_on_window (display, window)) |
1455 | XSelectInput (display, window, STANDARD_EVENT_SET); | |
d1f21a66 | 1456 | unexpect_property_change (wait_object); |
4feb31b2 | 1457 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1458 | calls xmalloc itself. */ |
4feb31b2 | 1459 | if (tmp_data) xfree (tmp_data); |
ede4db72 RS |
1460 | break; |
1461 | } | |
2f65feb6 RS |
1462 | |
1463 | BLOCK_INPUT; | |
d9c0d4a3 GM |
1464 | TRACE1 (" ACK by deleting property %s", |
1465 | XGetAtomName (display, property)); | |
2f65feb6 | 1466 | XDeleteProperty (display, window, property); |
d1f21a66 RS |
1467 | wait_object = expect_property_change (display, window, property, |
1468 | PropertyNewValue); | |
5c3a351a | 1469 | XFlush (display); |
2f65feb6 RS |
1470 | UNBLOCK_INPUT; |
1471 | ||
ede4db72 RS |
1472 | if (*size_bytes_ret < offset + tmp_size_bytes) |
1473 | { | |
ede4db72 RS |
1474 | *size_bytes_ret = offset + tmp_size_bytes; |
1475 | *data_ret = (unsigned char *) xrealloc (*data_ret, *size_bytes_ret); | |
1476 | } | |
1b65481e | 1477 | |
018cfa07 | 1478 | bcopy (tmp_data, (*data_ret) + offset, tmp_size_bytes); |
ede4db72 | 1479 | offset += tmp_size_bytes; |
1b65481e | 1480 | |
4feb31b2 | 1481 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1482 | calls xmalloc itself. */ |
4feb31b2 | 1483 | xfree (tmp_data); |
ede4db72 RS |
1484 | } |
1485 | } | |
d9c0d4a3 | 1486 | |
ede4db72 RS |
1487 | \f |
1488 | /* Once a requested selection is "ready" (we got a SelectionNotify event), | |
1489 | fetch value from property PROPERTY of X window WINDOW on display DISPLAY. | |
1490 | TARGET_TYPE and SELECTION_ATOM are used in error message if this fails. */ | |
1491 | ||
1492 | static Lisp_Object | |
1493 | x_get_window_property_as_lisp_data (display, window, property, target_type, | |
1494 | selection_atom) | |
1495 | Display *display; | |
1496 | Window window; | |
1497 | Atom property; | |
1498 | Lisp_Object target_type; /* for error messages only */ | |
1499 | Atom selection_atom; /* for error messages only */ | |
1500 | { | |
1501 | Atom actual_type; | |
1502 | int actual_format; | |
1503 | unsigned long actual_size; | |
1504 | unsigned char *data = 0; | |
1505 | int bytes = 0; | |
1506 | Lisp_Object val; | |
5c3a351a | 1507 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 | 1508 | |
d9c0d4a3 GM |
1509 | TRACE0 ("Reading selection data"); |
1510 | ||
ede4db72 RS |
1511 | x_get_window_property (display, window, property, &data, &bytes, |
1512 | &actual_type, &actual_format, &actual_size, 1); | |
1513 | if (! data) | |
1514 | { | |
1515 | int there_is_a_selection_owner; | |
1516 | BLOCK_INPUT; | |
1517 | there_is_a_selection_owner | |
1518 | = XGetSelectionOwner (display, selection_atom); | |
1519 | UNBLOCK_INPUT; | |
5a499696 RS |
1520 | Fsignal (Qerror, |
1521 | there_is_a_selection_owner | |
1522 | ? Fcons (build_string ("selection owner couldn't convert"), | |
ede4db72 RS |
1523 | actual_type |
1524 | ? Fcons (target_type, | |
d9c0d4a3 | 1525 | Fcons (x_atom_to_symbol (display, |
5c3a351a | 1526 | actual_type), |
ede4db72 RS |
1527 | Qnil)) |
1528 | : Fcons (target_type, Qnil)) | |
5a499696 | 1529 | : Fcons (build_string ("no selection"), |
d9c0d4a3 | 1530 | Fcons (x_atom_to_symbol (display, |
5a499696 RS |
1531 | selection_atom), |
1532 | Qnil))); | |
ede4db72 | 1533 | } |
1b65481e | 1534 | |
5c3a351a | 1535 | if (actual_type == dpyinfo->Xatom_INCR) |
ede4db72 RS |
1536 | { |
1537 | /* That wasn't really the data, just the beginning. */ | |
1538 | ||
1539 | unsigned int min_size_bytes = * ((unsigned int *) data); | |
1540 | BLOCK_INPUT; | |
4feb31b2 | 1541 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1542 | calls xmalloc itself. */ |
4feb31b2 | 1543 | xfree ((char *) data); |
ede4db72 RS |
1544 | UNBLOCK_INPUT; |
1545 | receive_incremental_selection (display, window, property, target_type, | |
1546 | min_size_bytes, &data, &bytes, | |
1547 | &actual_type, &actual_format, | |
1548 | &actual_size); | |
1549 | } | |
1550 | ||
2f65feb6 | 1551 | BLOCK_INPUT; |
d9c0d4a3 | 1552 | TRACE1 (" Delete property %s", XGetAtomName (display, property)); |
2f65feb6 | 1553 | XDeleteProperty (display, window, property); |
5c3a351a | 1554 | XFlush (display); |
2f65feb6 RS |
1555 | UNBLOCK_INPUT; |
1556 | ||
ede4db72 RS |
1557 | /* It's been read. Now convert it to a lisp object in some semi-rational |
1558 | manner. */ | |
1559 | val = selection_data_to_lisp_data (display, data, bytes, | |
1560 | actual_type, actual_format); | |
1b65481e | 1561 | |
4feb31b2 | 1562 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 1563 | calls xmalloc itself. */ |
4feb31b2 | 1564 | xfree ((char *) data); |
ede4db72 RS |
1565 | return val; |
1566 | } | |
1567 | \f | |
1568 | /* These functions convert from the selection data read from the server into | |
1569 | something that we can use from Lisp, and vice versa. | |
1570 | ||
1571 | Type: Format: Size: Lisp Type: | |
1572 | ----- ------- ----- ----------- | |
1573 | * 8 * String | |
1574 | ATOM 32 1 Symbol | |
1575 | ATOM 32 > 1 Vector of Symbols | |
1576 | * 16 1 Integer | |
1577 | * 16 > 1 Vector of Integers | |
1578 | * 32 1 if <=16 bits: Integer | |
1579 | if > 16 bits: Cons of top16, bot16 | |
1580 | * 32 > 1 Vector of the above | |
1581 | ||
1582 | When converting a Lisp number to C, it is assumed to be of format 16 if | |
1583 | it is an integer, and of format 32 if it is a cons of two integers. | |
1584 | ||
1585 | When converting a vector of numbers from Lisp to C, it is assumed to be | |
1586 | of format 16 if every element in the vector is an integer, and is assumed | |
1587 | to be of format 32 if any element is a cons of two integers. | |
1588 | ||
1589 | When converting an object to C, it may be of the form (SYMBOL . <data>) | |
1590 | where SYMBOL is what we should claim that the type is. Format and | |
1591 | representation are as above. */ | |
1592 | ||
1593 | ||
1594 | ||
1595 | static Lisp_Object | |
1596 | selection_data_to_lisp_data (display, data, size, type, format) | |
1597 | Display *display; | |
1598 | unsigned char *data; | |
1599 | Atom type; | |
1600 | int size, format; | |
1601 | { | |
5c3a351a | 1602 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
ede4db72 | 1603 | |
5c3a351a | 1604 | if (type == dpyinfo->Xatom_NULL) |
ede4db72 RS |
1605 | return QNULL; |
1606 | ||
1607 | /* Convert any 8-bit data to a string, for compactness. */ | |
1608 | else if (format == 8) | |
e6c7c988 | 1609 | { |
e57ad4d8 KH |
1610 | Lisp_Object str, lispy_type; |
1611 | ||
1612 | str = make_unibyte_string ((char *) data, size); | |
1613 | /* Indicate that this string is from foreign selection by a text | |
1614 | property `foreign-selection' so that the caller of | |
1615 | x-get-selection-internal (usually x-get-selection) can know | |
1616 | that the string must be decode. */ | |
1617 | if (type == dpyinfo->Xatom_COMPOUND_TEXT) | |
1618 | lispy_type = QCOMPOUND_TEXT; | |
1619 | else if (type == dpyinfo->Xatom_UTF8_STRING) | |
1620 | lispy_type = QUTF8_STRING; | |
e6c7c988 | 1621 | else |
e57ad4d8 KH |
1622 | lispy_type = QSTRING; |
1623 | Fput_text_property (make_number (0), make_number (size), | |
1624 | Qforeign_selection, lispy_type, str); | |
e6c7c988 KH |
1625 | return str; |
1626 | } | |
ede4db72 RS |
1627 | /* Convert a single atom to a Lisp_Symbol. Convert a set of atoms to |
1628 | a vector of symbols. | |
1629 | */ | |
1630 | else if (type == XA_ATOM) | |
1631 | { | |
1632 | int i; | |
1633 | if (size == sizeof (Atom)) | |
d9c0d4a3 | 1634 | return x_atom_to_symbol (display, *((Atom *) data)); |
ede4db72 RS |
1635 | else |
1636 | { | |
e607a484 RS |
1637 | Lisp_Object v = Fmake_vector (make_number (size / sizeof (Atom)), |
1638 | make_number (0)); | |
ede4db72 | 1639 | for (i = 0; i < size / sizeof (Atom); i++) |
e607a484 | 1640 | Faset (v, make_number (i), |
d9c0d4a3 | 1641 | x_atom_to_symbol (display, ((Atom *) data) [i])); |
ede4db72 RS |
1642 | return v; |
1643 | } | |
1644 | } | |
1645 | ||
1646 | /* Convert a single 16 or small 32 bit number to a Lisp_Int. | |
1647 | If the number is > 16 bits, convert it to a cons of integers, | |
1648 | 16 bits in each half. | |
1649 | */ | |
2f51feb8 AS |
1650 | else if (format == 32 && size == sizeof (int)) |
1651 | return long_to_cons (((unsigned int *) data) [0]); | |
ede4db72 RS |
1652 | else if (format == 16 && size == sizeof (short)) |
1653 | return make_number ((int) (((unsigned short *) data) [0])); | |
1654 | ||
1655 | /* Convert any other kind of data to a vector of numbers, represented | |
1656 | as above (as an integer, or a cons of two 16 bit integers.) | |
1657 | */ | |
1658 | else if (format == 16) | |
1659 | { | |
1660 | int i; | |
937a3875 RS |
1661 | Lisp_Object v; |
1662 | v = Fmake_vector (make_number (size / 2), make_number (0)); | |
1663 | for (i = 0; i < size / 2; i++) | |
ede4db72 RS |
1664 | { |
1665 | int j = (int) ((unsigned short *) data) [i]; | |
e607a484 | 1666 | Faset (v, make_number (i), make_number (j)); |
ede4db72 RS |
1667 | } |
1668 | return v; | |
1669 | } | |
1670 | else | |
1671 | { | |
1672 | int i; | |
e607a484 | 1673 | Lisp_Object v = Fmake_vector (make_number (size / 4), make_number (0)); |
ede4db72 RS |
1674 | for (i = 0; i < size / 4; i++) |
1675 | { | |
2f51feb8 | 1676 | unsigned int j = ((unsigned int *) data) [i]; |
e607a484 | 1677 | Faset (v, make_number (i), long_to_cons (j)); |
ede4db72 RS |
1678 | } |
1679 | return v; | |
1680 | } | |
1681 | } | |
1682 | ||
1683 | ||
4feb31b2 | 1684 | /* Use xfree, not XFree, to free the data obtained with this function. */ |
0158abbc | 1685 | |
ede4db72 RS |
1686 | static void |
1687 | lisp_data_to_selection_data (display, obj, | |
aca39f42 RS |
1688 | data_ret, type_ret, size_ret, |
1689 | format_ret, nofree_ret) | |
ede4db72 RS |
1690 | Display *display; |
1691 | Lisp_Object obj; | |
1692 | unsigned char **data_ret; | |
1693 | Atom *type_ret; | |
1694 | unsigned int *size_ret; | |
1695 | int *format_ret; | |
aca39f42 | 1696 | int *nofree_ret; |
ede4db72 RS |
1697 | { |
1698 | Lisp_Object type = Qnil; | |
5c3a351a | 1699 | struct x_display_info *dpyinfo = x_display_info_for_display (display); |
aca39f42 RS |
1700 | |
1701 | *nofree_ret = 0; | |
1702 | ||
8e713be6 | 1703 | if (CONSP (obj) && SYMBOLP (XCAR (obj))) |
ede4db72 | 1704 | { |
8e713be6 KR |
1705 | type = XCAR (obj); |
1706 | obj = XCDR (obj); | |
1707 | if (CONSP (obj) && NILP (XCDR (obj))) | |
1708 | obj = XCAR (obj); | |
ede4db72 RS |
1709 | } |
1710 | ||
1711 | if (EQ (obj, QNULL) || (EQ (type, QNULL))) | |
1712 | { /* This is not the same as declining */ | |
1713 | *format_ret = 32; | |
1714 | *size_ret = 0; | |
1715 | *data_ret = 0; | |
1716 | type = QNULL; | |
1717 | } | |
1718 | else if (STRINGP (obj)) | |
1719 | { | |
5109c8dd | 1720 | xassert (! STRING_MULTIBYTE (obj)); |
7b9ae523 | 1721 | if (NILP (type)) |
5109c8dd KH |
1722 | type = QSTRING; |
1723 | *format_ret = 8; | |
1724 | *size_ret = SBYTES (obj); | |
1725 | *data_ret = SDATA (obj); | |
1726 | *nofree_ret = 1; | |
ede4db72 RS |
1727 | } |
1728 | else if (SYMBOLP (obj)) | |
1729 | { | |
1730 | *format_ret = 32; | |
1731 | *size_ret = 1; | |
1732 | *data_ret = (unsigned char *) xmalloc (sizeof (Atom) + 1); | |
1733 | (*data_ret) [sizeof (Atom)] = 0; | |
5c3a351a | 1734 | (*(Atom **) data_ret) [0] = symbol_to_x_atom (dpyinfo, display, obj); |
ede4db72 RS |
1735 | if (NILP (type)) type = QATOM; |
1736 | } | |
7da64e5c | 1737 | else if (INTEGERP (obj) |
ede4db72 RS |
1738 | && XINT (obj) < 0xFFFF |
1739 | && XINT (obj) > -0xFFFF) | |
1740 | { | |
1741 | *format_ret = 16; | |
1742 | *size_ret = 1; | |
1743 | *data_ret = (unsigned char *) xmalloc (sizeof (short) + 1); | |
1744 | (*data_ret) [sizeof (short)] = 0; | |
1745 | (*(short **) data_ret) [0] = (short) XINT (obj); | |
1746 | if (NILP (type)) type = QINTEGER; | |
1747 | } | |
a87ed99c | 1748 | else if (INTEGERP (obj) |
8e713be6 KR |
1749 | || (CONSP (obj) && INTEGERP (XCAR (obj)) |
1750 | && (INTEGERP (XCDR (obj)) | |
1751 | || (CONSP (XCDR (obj)) | |
1752 | && INTEGERP (XCAR (XCDR (obj))))))) | |
ede4db72 RS |
1753 | { |
1754 | *format_ret = 32; | |
1755 | *size_ret = 1; | |
1756 | *data_ret = (unsigned char *) xmalloc (sizeof (long) + 1); | |
1757 | (*data_ret) [sizeof (long)] = 0; | |
1758 | (*(unsigned long **) data_ret) [0] = cons_to_long (obj); | |
1759 | if (NILP (type)) type = QINTEGER; | |
1760 | } | |
1761 | else if (VECTORP (obj)) | |
1762 | { | |
1763 | /* Lisp_Vectors may represent a set of ATOMs; | |
1764 | a set of 16 or 32 bit INTEGERs; | |
1765 | or a set of ATOM_PAIRs (represented as [[A1 A2] [A3 A4] ...] | |
1766 | */ | |
1767 | int i; | |
1768 | ||
1769 | if (SYMBOLP (XVECTOR (obj)->contents [0])) | |
1770 | /* This vector is an ATOM set */ | |
1771 | { | |
1772 | if (NILP (type)) type = QATOM; | |
1773 | *size_ret = XVECTOR (obj)->size; | |
1774 | *format_ret = 32; | |
1775 | *data_ret = (unsigned char *) xmalloc ((*size_ret) * sizeof (Atom)); | |
1776 | for (i = 0; i < *size_ret; i++) | |
1777 | if (SYMBOLP (XVECTOR (obj)->contents [i])) | |
1778 | (*(Atom **) data_ret) [i] | |
5c3a351a | 1779 | = symbol_to_x_atom (dpyinfo, display, XVECTOR (obj)->contents [i]); |
ede4db72 RS |
1780 | else |
1781 | Fsignal (Qerror, /* Qselection_error */ | |
1782 | Fcons (build_string | |
1783 | ("all elements of selection vector must have same type"), | |
1784 | Fcons (obj, Qnil))); | |
1785 | } | |
1786 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1787 | else if (VECTORP (XVECTOR (obj)->contents [0])) | |
1788 | /* This vector is an ATOM_PAIR set */ | |
1789 | { | |
1790 | if (NILP (type)) type = QATOM_PAIR; | |
1791 | *size_ret = XVECTOR (obj)->size; | |
1792 | *format_ret = 32; | |
1793 | *data_ret = (unsigned char *) | |
1794 | xmalloc ((*size_ret) * sizeof (Atom) * 2); | |
1795 | for (i = 0; i < *size_ret; i++) | |
1796 | if (VECTORP (XVECTOR (obj)->contents [i])) | |
1797 | { | |
1798 | Lisp_Object pair = XVECTOR (obj)->contents [i]; | |
1799 | if (XVECTOR (pair)->size != 2) | |
1800 | Fsignal (Qerror, | |
1b65481e | 1801 | Fcons (build_string |
ede4db72 RS |
1802 | ("elements of the vector must be vectors of exactly two elements"), |
1803 | Fcons (pair, Qnil))); | |
1b65481e | 1804 | |
ede4db72 | 1805 | (*(Atom **) data_ret) [i * 2] |
5c3a351a RS |
1806 | = symbol_to_x_atom (dpyinfo, display, |
1807 | XVECTOR (pair)->contents [0]); | |
ede4db72 | 1808 | (*(Atom **) data_ret) [(i * 2) + 1] |
5c3a351a RS |
1809 | = symbol_to_x_atom (dpyinfo, display, |
1810 | XVECTOR (pair)->contents [1]); | |
ede4db72 RS |
1811 | } |
1812 | else | |
1813 | Fsignal (Qerror, | |
1814 | Fcons (build_string | |
1815 | ("all elements of the vector must be of the same type"), | |
1816 | Fcons (obj, Qnil))); | |
1b65481e | 1817 | |
ede4db72 RS |
1818 | } |
1819 | #endif | |
1820 | else | |
1821 | /* This vector is an INTEGER set, or something like it */ | |
1822 | { | |
1823 | *size_ret = XVECTOR (obj)->size; | |
1824 | if (NILP (type)) type = QINTEGER; | |
1825 | *format_ret = 16; | |
1826 | for (i = 0; i < *size_ret; i++) | |
1827 | if (CONSP (XVECTOR (obj)->contents [i])) | |
1828 | *format_ret = 32; | |
7da64e5c | 1829 | else if (!INTEGERP (XVECTOR (obj)->contents [i])) |
ede4db72 RS |
1830 | Fsignal (Qerror, /* Qselection_error */ |
1831 | Fcons (build_string | |
1832 | ("elements of selection vector must be integers or conses of integers"), | |
1833 | Fcons (obj, Qnil))); | |
1834 | ||
1835 | *data_ret = (unsigned char *) xmalloc (*size_ret * (*format_ret/8)); | |
1836 | for (i = 0; i < *size_ret; i++) | |
1837 | if (*format_ret == 32) | |
1838 | (*((unsigned long **) data_ret)) [i] | |
1839 | = cons_to_long (XVECTOR (obj)->contents [i]); | |
1840 | else | |
1841 | (*((unsigned short **) data_ret)) [i] | |
1842 | = (unsigned short) cons_to_long (XVECTOR (obj)->contents [i]); | |
1843 | } | |
1844 | } | |
1845 | else | |
1846 | Fsignal (Qerror, /* Qselection_error */ | |
1847 | Fcons (build_string ("unrecognised selection data"), | |
1848 | Fcons (obj, Qnil))); | |
1849 | ||
5c3a351a | 1850 | *type_ret = symbol_to_x_atom (dpyinfo, display, type); |
ede4db72 RS |
1851 | } |
1852 | ||
1853 | static Lisp_Object | |
1854 | clean_local_selection_data (obj) | |
1855 | Lisp_Object obj; | |
1856 | { | |
1857 | if (CONSP (obj) | |
8e713be6 KR |
1858 | && INTEGERP (XCAR (obj)) |
1859 | && CONSP (XCDR (obj)) | |
1860 | && INTEGERP (XCAR (XCDR (obj))) | |
1861 | && NILP (XCDR (XCDR (obj)))) | |
1862 | obj = Fcons (XCAR (obj), XCDR (obj)); | |
ede4db72 RS |
1863 | |
1864 | if (CONSP (obj) | |
8e713be6 KR |
1865 | && INTEGERP (XCAR (obj)) |
1866 | && INTEGERP (XCDR (obj))) | |
ede4db72 | 1867 | { |
8e713be6 KR |
1868 | if (XINT (XCAR (obj)) == 0) |
1869 | return XCDR (obj); | |
1870 | if (XINT (XCAR (obj)) == -1) | |
1871 | return make_number (- XINT (XCDR (obj))); | |
ede4db72 RS |
1872 | } |
1873 | if (VECTORP (obj)) | |
1874 | { | |
1875 | int i; | |
1876 | int size = XVECTOR (obj)->size; | |
1877 | Lisp_Object copy; | |
1878 | if (size == 1) | |
1879 | return clean_local_selection_data (XVECTOR (obj)->contents [0]); | |
e607a484 | 1880 | copy = Fmake_vector (make_number (size), Qnil); |
ede4db72 RS |
1881 | for (i = 0; i < size; i++) |
1882 | XVECTOR (copy)->contents [i] | |
1883 | = clean_local_selection_data (XVECTOR (obj)->contents [i]); | |
1884 | return copy; | |
1885 | } | |
1886 | return obj; | |
1887 | } | |
1888 | \f | |
1889 | /* Called from XTread_socket to handle SelectionNotify events. | |
606140dd KH |
1890 | If it's the selection we are waiting for, stop waiting |
1891 | by setting the car of reading_selection_reply to non-nil. | |
1892 | We store t there if the reply is successful, lambda if not. */ | |
ede4db72 RS |
1893 | |
1894 | void | |
1895 | x_handle_selection_notify (event) | |
1896 | XSelectionEvent *event; | |
1897 | { | |
5d0ba25b | 1898 | if (event->requestor != reading_selection_window) |
ede4db72 RS |
1899 | return; |
1900 | if (event->selection != reading_which_selection) | |
1901 | return; | |
1902 | ||
d9c0d4a3 | 1903 | TRACE0 ("Received SelectionNotify"); |
f3fbd155 KR |
1904 | XSETCAR (reading_selection_reply, |
1905 | (event->property != 0 ? Qt : Qlambda)); | |
ede4db72 RS |
1906 | } |
1907 | ||
1908 | \f | |
a0d76c27 | 1909 | DEFUN ("x-own-selection-internal", Fx_own_selection_internal, |
8c1a1077 PJ |
1910 | Sx_own_selection_internal, 2, 2, 0, |
1911 | doc: /* Assert an X selection of the given TYPE with the given VALUE. | |
1912 | TYPE is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
1913 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
1914 | VALUE is typically a string, or a cons of two markers, but may be | |
1915 | anything that the functions on `selection-converter-alist' know about. */) | |
1916 | (selection_name, selection_value) | |
ede4db72 RS |
1917 | Lisp_Object selection_name, selection_value; |
1918 | { | |
703e0710 | 1919 | check_x (); |
b7826503 | 1920 | CHECK_SYMBOL (selection_name); |
606140dd | 1921 | if (NILP (selection_value)) error ("selection-value may not be nil"); |
ede4db72 RS |
1922 | x_own_selection (selection_name, selection_value); |
1923 | return selection_value; | |
1924 | } | |
1925 | ||
1926 | ||
1927 | /* Request the selection value from the owner. If we are the owner, | |
1928 | simply return our selection value. If we are not the owner, this | |
1929 | will block until all of the data has arrived. */ | |
1930 | ||
a0d76c27 | 1931 | DEFUN ("x-get-selection-internal", Fx_get_selection_internal, |
8c1a1077 PJ |
1932 | Sx_get_selection_internal, 2, 2, 0, |
1933 | doc: /* Return text selected from some X window. | |
1934 | SELECTION is a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
1935 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
1936 | TYPE is the type of data desired, typically `STRING'. */) | |
1937 | (selection_symbol, target_type) | |
ede4db72 RS |
1938 | Lisp_Object selection_symbol, target_type; |
1939 | { | |
1940 | Lisp_Object val = Qnil; | |
1941 | struct gcpro gcpro1, gcpro2; | |
1942 | GCPRO2 (target_type, val); /* we store newly consed data into these */ | |
703e0710 | 1943 | check_x (); |
b7826503 | 1944 | CHECK_SYMBOL (selection_symbol); |
ede4db72 RS |
1945 | |
1946 | #if 0 /* #### MULTIPLE doesn't work yet */ | |
1947 | if (CONSP (target_type) | |
8e713be6 | 1948 | && XCAR (target_type) == QMULTIPLE) |
ede4db72 | 1949 | { |
b7826503 | 1950 | CHECK_VECTOR (XCDR (target_type)); |
ede4db72 RS |
1951 | /* So we don't destructively modify this... */ |
1952 | target_type = copy_multiple_data (target_type); | |
1953 | } | |
1954 | else | |
1955 | #endif | |
b7826503 | 1956 | CHECK_SYMBOL (target_type); |
ede4db72 | 1957 | |
5109c8dd | 1958 | val = x_get_local_selection (selection_symbol, target_type, 1); |
ede4db72 RS |
1959 | |
1960 | if (NILP (val)) | |
1961 | { | |
1962 | val = x_get_foreign_selection (selection_symbol, target_type); | |
1963 | goto DONE; | |
1964 | } | |
1965 | ||
1966 | if (CONSP (val) | |
8e713be6 | 1967 | && SYMBOLP (XCAR (val))) |
ede4db72 | 1968 | { |
8e713be6 KR |
1969 | val = XCDR (val); |
1970 | if (CONSP (val) && NILP (XCDR (val))) | |
1971 | val = XCAR (val); | |
ede4db72 RS |
1972 | } |
1973 | val = clean_local_selection_data (val); | |
1974 | DONE: | |
1975 | UNGCPRO; | |
1976 | return val; | |
1977 | } | |
1978 | ||
a0d76c27 | 1979 | DEFUN ("x-disown-selection-internal", Fx_disown_selection_internal, |
8c1a1077 PJ |
1980 | Sx_disown_selection_internal, 1, 2, 0, |
1981 | doc: /* If we own the selection SELECTION, disown it. | |
1982 | Disowning it means there is no such selection. */) | |
1983 | (selection, time) | |
ede4db72 RS |
1984 | Lisp_Object selection; |
1985 | Lisp_Object time; | |
1986 | { | |
ede4db72 RS |
1987 | Time timestamp; |
1988 | Atom selection_atom; | |
44d46531 | 1989 | struct selection_input_event event; |
3834c318 | 1990 | Display *display; |
5c3a351a | 1991 | struct x_display_info *dpyinfo; |
378c33ca | 1992 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 1993 | |
703e0710 | 1994 | check_x (); |
378c33ca GM |
1995 | display = FRAME_X_DISPLAY (sf); |
1996 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
b7826503 | 1997 | CHECK_SYMBOL (selection); |
ede4db72 | 1998 | if (NILP (time)) |
7da64e5c | 1999 | timestamp = last_event_timestamp; |
ede4db72 RS |
2000 | else |
2001 | timestamp = cons_to_long (time); | |
2002 | ||
2003 | if (NILP (assq_no_quit (selection, Vselection_alist))) | |
2004 | return Qnil; /* Don't disown the selection when we're not the owner. */ | |
2005 | ||
5c3a351a | 2006 | selection_atom = symbol_to_x_atom (dpyinfo, display, selection); |
ede4db72 RS |
2007 | |
2008 | BLOCK_INPUT; | |
2009 | XSetSelectionOwner (display, selection_atom, None, timestamp); | |
2010 | UNBLOCK_INPUT; | |
2011 | ||
eb8c3be9 | 2012 | /* It doesn't seem to be guaranteed that a SelectionClear event will be |
ede4db72 RS |
2013 | generated for a window which owns the selection when that window sets |
2014 | the selection owner to None. The NCD server does, the MIT Sun4 server | |
2015 | doesn't. So we synthesize one; this means we might get two, but | |
2016 | that's ok, because the second one won't have any effect. */ | |
8d47f8c4 RS |
2017 | SELECTION_EVENT_DISPLAY (&event) = display; |
2018 | SELECTION_EVENT_SELECTION (&event) = selection_atom; | |
2019 | SELECTION_EVENT_TIME (&event) = timestamp; | |
44d46531 | 2020 | x_handle_selection_clear ((struct input_event *) &event); |
ede4db72 RS |
2021 | |
2022 | return Qt; | |
2023 | } | |
2024 | ||
a87ed99c RS |
2025 | /* Get rid of all the selections in buffer BUFFER. |
2026 | This is used when we kill a buffer. */ | |
2027 | ||
2028 | void | |
2029 | x_disown_buffer_selections (buffer) | |
2030 | Lisp_Object buffer; | |
2031 | { | |
2032 | Lisp_Object tail; | |
2033 | struct buffer *buf = XBUFFER (buffer); | |
2034 | ||
8e713be6 | 2035 | for (tail = Vselection_alist; CONSP (tail); tail = XCDR (tail)) |
a87ed99c RS |
2036 | { |
2037 | Lisp_Object elt, value; | |
8e713be6 KR |
2038 | elt = XCAR (tail); |
2039 | value = XCDR (elt); | |
2040 | if (CONSP (value) && MARKERP (XCAR (value)) | |
2041 | && XMARKER (XCAR (value))->buffer == buf) | |
2042 | Fx_disown_selection_internal (XCAR (elt), Qnil); | |
a87ed99c RS |
2043 | } |
2044 | } | |
ede4db72 RS |
2045 | |
2046 | DEFUN ("x-selection-owner-p", Fx_selection_owner_p, Sx_selection_owner_p, | |
8c1a1077 PJ |
2047 | 0, 1, 0, |
2048 | doc: /* Whether the current Emacs process owns the given X Selection. | |
2049 | The arg should be the name of the selection in question, typically one of | |
2050 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2051 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2052 | For convenience, the symbol nil is the same as `PRIMARY', | |
2053 | and t is the same as `SECONDARY'. */) | |
2054 | (selection) | |
ede4db72 RS |
2055 | Lisp_Object selection; |
2056 | { | |
703e0710 | 2057 | check_x (); |
b7826503 | 2058 | CHECK_SYMBOL (selection); |
ede4db72 RS |
2059 | if (EQ (selection, Qnil)) selection = QPRIMARY; |
2060 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
1b65481e | 2061 | |
ede4db72 RS |
2062 | if (NILP (Fassq (selection, Vselection_alist))) |
2063 | return Qnil; | |
2064 | return Qt; | |
2065 | } | |
2066 | ||
2067 | DEFUN ("x-selection-exists-p", Fx_selection_exists_p, Sx_selection_exists_p, | |
8c1a1077 PJ |
2068 | 0, 1, 0, |
2069 | doc: /* Whether there is an owner for the given X Selection. | |
2070 | The arg should be the name of the selection in question, typically one of | |
2071 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
2072 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
2073 | For convenience, the symbol nil is the same as `PRIMARY', | |
2074 | and t is the same as `SECONDARY'. */) | |
2075 | (selection) | |
ede4db72 RS |
2076 | Lisp_Object selection; |
2077 | { | |
2078 | Window owner; | |
356ba514 | 2079 | Atom atom; |
3834c318 | 2080 | Display *dpy; |
378c33ca | 2081 | struct frame *sf = SELECTED_FRAME (); |
3834c318 | 2082 | |
b8c70430 | 2083 | /* It should be safe to call this before we have an X frame. */ |
378c33ca | 2084 | if (! FRAME_X_P (sf)) |
b8c70430 RS |
2085 | return Qnil; |
2086 | ||
378c33ca | 2087 | dpy = FRAME_X_DISPLAY (sf); |
b7826503 | 2088 | CHECK_SYMBOL (selection); |
ede4db72 RS |
2089 | if (!NILP (Fx_selection_owner_p (selection))) |
2090 | return Qt; | |
356ba514 RS |
2091 | if (EQ (selection, Qnil)) selection = QPRIMARY; |
2092 | if (EQ (selection, Qt)) selection = QSECONDARY; | |
378c33ca | 2093 | atom = symbol_to_x_atom (FRAME_X_DISPLAY_INFO (sf), dpy, selection); |
356ba514 RS |
2094 | if (atom == 0) |
2095 | return Qnil; | |
ede4db72 | 2096 | BLOCK_INPUT; |
356ba514 | 2097 | owner = XGetSelectionOwner (dpy, atom); |
ede4db72 RS |
2098 | UNBLOCK_INPUT; |
2099 | return (owner ? Qt : Qnil); | |
2100 | } | |
2101 | ||
2102 | \f | |
2103 | #ifdef CUT_BUFFER_SUPPORT | |
2104 | ||
ede4db72 RS |
2105 | /* Ensure that all 8 cut buffers exist. ICCCM says we gotta... */ |
2106 | static void | |
2107 | initialize_cut_buffers (display, window) | |
2108 | Display *display; | |
2109 | Window window; | |
2110 | { | |
2111 | unsigned char *data = (unsigned char *) ""; | |
2112 | BLOCK_INPUT; | |
2113 | #define FROB(atom) XChangeProperty (display, window, atom, XA_STRING, 8, \ | |
2114 | PropModeAppend, data, 0) | |
2115 | FROB (XA_CUT_BUFFER0); | |
2116 | FROB (XA_CUT_BUFFER1); | |
2117 | FROB (XA_CUT_BUFFER2); | |
2118 | FROB (XA_CUT_BUFFER3); | |
2119 | FROB (XA_CUT_BUFFER4); | |
2120 | FROB (XA_CUT_BUFFER5); | |
2121 | FROB (XA_CUT_BUFFER6); | |
2122 | FROB (XA_CUT_BUFFER7); | |
2123 | #undef FROB | |
2124 | UNBLOCK_INPUT; | |
ede4db72 RS |
2125 | } |
2126 | ||
2127 | ||
b7826503 PJ |
2128 | #define CHECK_CUT_BUFFER(symbol) \ |
2129 | { CHECK_SYMBOL ((symbol)); \ | |
ede4db72 RS |
2130 | if (!EQ((symbol), QCUT_BUFFER0) && !EQ((symbol), QCUT_BUFFER1) \ |
2131 | && !EQ((symbol), QCUT_BUFFER2) && !EQ((symbol), QCUT_BUFFER3) \ | |
2132 | && !EQ((symbol), QCUT_BUFFER4) && !EQ((symbol), QCUT_BUFFER5) \ | |
2133 | && !EQ((symbol), QCUT_BUFFER6) && !EQ((symbol), QCUT_BUFFER7)) \ | |
2134 | Fsignal (Qerror, \ | |
a87ed99c | 2135 | Fcons (build_string ("doesn't name a cut buffer"), \ |
ede4db72 RS |
2136 | Fcons ((symbol), Qnil))); \ |
2137 | } | |
2138 | ||
a87ed99c | 2139 | DEFUN ("x-get-cut-buffer-internal", Fx_get_cut_buffer_internal, |
8c1a1077 PJ |
2140 | Sx_get_cut_buffer_internal, 1, 1, 0, |
2141 | doc: /* Returns the value of the named cut buffer (typically CUT_BUFFER0). */) | |
2142 | (buffer) | |
ede4db72 RS |
2143 | Lisp_Object buffer; |
2144 | { | |
3834c318 | 2145 | Window window; |
ede4db72 RS |
2146 | Atom buffer_atom; |
2147 | unsigned char *data; | |
2148 | int bytes; | |
2149 | Atom type; | |
2150 | int format; | |
2151 | unsigned long size; | |
2152 | Lisp_Object ret; | |
3834c318 | 2153 | Display *display; |
5c3a351a | 2154 | struct x_display_info *dpyinfo; |
378c33ca | 2155 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2156 | |
703e0710 | 2157 | check_x (); |
378c33ca GM |
2158 | display = FRAME_X_DISPLAY (sf); |
2159 | dpyinfo = FRAME_X_DISPLAY_INFO (sf); | |
3834c318 | 2160 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
b7826503 | 2161 | CHECK_CUT_BUFFER (buffer); |
5c3a351a | 2162 | buffer_atom = symbol_to_x_atom (dpyinfo, display, buffer); |
ede4db72 RS |
2163 | |
2164 | x_get_window_property (display, window, buffer_atom, &data, &bytes, | |
2165 | &type, &format, &size, 0); | |
22e00739 RS |
2166 | if (!data || !format) |
2167 | return Qnil; | |
1b65481e | 2168 | |
ede4db72 RS |
2169 | if (format != 8 || type != XA_STRING) |
2170 | Fsignal (Qerror, | |
2171 | Fcons (build_string ("cut buffer doesn't contain 8-bit data"), | |
d9c0d4a3 | 2172 | Fcons (x_atom_to_symbol (display, type), |
ede4db72 RS |
2173 | Fcons (make_number (format), Qnil)))); |
2174 | ||
2175 | ret = (bytes ? make_string ((char *) data, bytes) : Qnil); | |
4feb31b2 | 2176 | /* Use xfree, not XFree, because x_get_window_property |
0158abbc | 2177 | calls xmalloc itself. */ |
4feb31b2 | 2178 | xfree (data); |
ede4db72 RS |
2179 | return ret; |
2180 | } | |
2181 | ||
2182 | ||
a87ed99c | 2183 | DEFUN ("x-store-cut-buffer-internal", Fx_store_cut_buffer_internal, |
8c1a1077 PJ |
2184 | Sx_store_cut_buffer_internal, 2, 2, 0, |
2185 | doc: /* Sets the value of the named cut buffer (typically CUT_BUFFER0). */) | |
2186 | (buffer, string) | |
ede4db72 RS |
2187 | Lisp_Object buffer, string; |
2188 | { | |
3834c318 | 2189 | Window window; |
ede4db72 RS |
2190 | Atom buffer_atom; |
2191 | unsigned char *data; | |
2192 | int bytes; | |
2193 | int bytes_remaining; | |
3834c318 RS |
2194 | int max_bytes; |
2195 | Display *display; | |
378c33ca | 2196 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2197 | |
703e0710 | 2198 | check_x (); |
378c33ca | 2199 | display = FRAME_X_DISPLAY (sf); |
3834c318 RS |
2200 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
2201 | ||
2202 | max_bytes = SELECTION_QUANTUM (display); | |
2203 | if (max_bytes > MAX_SELECTION_QUANTUM) | |
2204 | max_bytes = MAX_SELECTION_QUANTUM; | |
2205 | ||
b7826503 PJ |
2206 | CHECK_CUT_BUFFER (buffer); |
2207 | CHECK_STRING (string); | |
378c33ca | 2208 | buffer_atom = symbol_to_x_atom (FRAME_X_DISPLAY_INFO (sf), |
5c3a351a | 2209 | display, buffer); |
d5db4077 KR |
2210 | data = (unsigned char *) SDATA (string); |
2211 | bytes = SBYTES (string); | |
ede4db72 RS |
2212 | bytes_remaining = bytes; |
2213 | ||
378c33ca | 2214 | if (! FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized) |
04649dbc KH |
2215 | { |
2216 | initialize_cut_buffers (display, window); | |
378c33ca | 2217 | FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized = 1; |
04649dbc | 2218 | } |
ede4db72 RS |
2219 | |
2220 | BLOCK_INPUT; | |
10608c8c RS |
2221 | |
2222 | /* Don't mess up with an empty value. */ | |
2223 | if (!bytes_remaining) | |
2224 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
2225 | PropModeReplace, data, 0); | |
2226 | ||
ede4db72 RS |
2227 | while (bytes_remaining) |
2228 | { | |
2229 | int chunk = (bytes_remaining < max_bytes | |
2230 | ? bytes_remaining : max_bytes); | |
2231 | XChangeProperty (display, window, buffer_atom, XA_STRING, 8, | |
2232 | (bytes_remaining == bytes | |
2233 | ? PropModeReplace | |
2234 | : PropModeAppend), | |
2235 | data, chunk); | |
2236 | data += chunk; | |
2237 | bytes_remaining -= chunk; | |
2238 | } | |
2239 | UNBLOCK_INPUT; | |
2240 | return string; | |
2241 | } | |
2242 | ||
2243 | ||
a87ed99c | 2244 | DEFUN ("x-rotate-cut-buffers-internal", Fx_rotate_cut_buffers_internal, |
8c1a1077 PJ |
2245 | Sx_rotate_cut_buffers_internal, 1, 1, 0, |
2246 | doc: /* Rotate the values of the cut buffers by the given number of step. | |
2247 | Positive means shift the values forward, negative means backward. */) | |
2248 | (n) | |
ede4db72 RS |
2249 | Lisp_Object n; |
2250 | { | |
3834c318 RS |
2251 | Window window; |
2252 | Atom props[8]; | |
2253 | Display *display; | |
378c33ca | 2254 | struct frame *sf = SELECTED_FRAME (); |
ede4db72 | 2255 | |
703e0710 | 2256 | check_x (); |
378c33ca | 2257 | display = FRAME_X_DISPLAY (sf); |
3834c318 | 2258 | window = RootWindow (display, 0); /* Cut buffers are on screen 0 */ |
b7826503 | 2259 | CHECK_NUMBER (n); |
3834c318 RS |
2260 | if (XINT (n) == 0) |
2261 | return n; | |
378c33ca | 2262 | if (! FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized) |
04649dbc KH |
2263 | { |
2264 | initialize_cut_buffers (display, window); | |
378c33ca | 2265 | FRAME_X_DISPLAY_INFO (sf)->cut_buffers_initialized = 1; |
04649dbc | 2266 | } |
3834c318 | 2267 | |
ede4db72 RS |
2268 | props[0] = XA_CUT_BUFFER0; |
2269 | props[1] = XA_CUT_BUFFER1; | |
2270 | props[2] = XA_CUT_BUFFER2; | |
2271 | props[3] = XA_CUT_BUFFER3; | |
2272 | props[4] = XA_CUT_BUFFER4; | |
2273 | props[5] = XA_CUT_BUFFER5; | |
2274 | props[6] = XA_CUT_BUFFER6; | |
2275 | props[7] = XA_CUT_BUFFER7; | |
2276 | BLOCK_INPUT; | |
2277 | XRotateWindowProperties (display, window, props, 8, XINT (n)); | |
2278 | UNBLOCK_INPUT; | |
2279 | return n; | |
2280 | } | |
2281 | ||
2282 | #endif | |
2283 | \f | |
1fb3821b JD |
2284 | /*********************************************************************** |
2285 | Drag and drop support | |
2286 | ***********************************************************************/ | |
2287 | /* Check that lisp values are of correct type for x_fill_property_data. | |
2288 | That is, number, string or a cons with two numbers (low and high 16 | |
2289 | bit parts of a 32 bit number). */ | |
2290 | ||
2291 | int | |
2292 | x_check_property_data (data) | |
2293 | Lisp_Object data; | |
2294 | { | |
2295 | Lisp_Object iter; | |
2296 | int size = 0; | |
2297 | ||
2298 | for (iter = data; CONSP (iter) && size != -1; iter = XCDR (iter), ++size) | |
2299 | { | |
2300 | Lisp_Object o = XCAR (iter); | |
2301 | ||
2302 | if (! NUMBERP (o) && ! STRINGP (o) && ! CONSP (o)) | |
2303 | size = -1; | |
2304 | else if (CONSP (o) && | |
2305 | (! NUMBERP (XCAR (o)) || ! NUMBERP (XCDR (o)))) | |
2306 | size = -1; | |
2307 | } | |
2308 | ||
2309 | return size; | |
2310 | } | |
2311 | ||
2312 | /* Convert lisp values to a C array. Values may be a number, a string | |
2313 | which is taken as an X atom name and converted to the atom value, or | |
2314 | a cons containing the two 16 bit parts of a 32 bit number. | |
2315 | ||
2316 | DPY is the display use to look up X atoms. | |
2317 | DATA is a Lisp list of values to be converted. | |
2318 | RET is the C array that contains the converted values. It is assumed | |
2319 | it is big enough to hol all values. | |
2320 | FORMAT is 8, 16 or 32 and gives the size in bits for each C value to | |
2321 | be stored in RET. */ | |
2322 | ||
2323 | void | |
2324 | x_fill_property_data (dpy, data, ret, format) | |
2325 | Display *dpy; | |
2326 | Lisp_Object data; | |
2327 | void *ret; | |
2328 | int format; | |
2329 | { | |
2330 | CARD32 val; | |
2331 | CARD32 *d32 = (CARD32 *) ret; | |
2332 | CARD16 *d16 = (CARD16 *) ret; | |
2333 | CARD8 *d08 = (CARD8 *) ret; | |
2334 | Lisp_Object iter; | |
2335 | ||
2336 | for (iter = data; CONSP (iter); iter = XCDR (iter)) | |
2337 | { | |
2338 | Lisp_Object o = XCAR (iter); | |
2339 | ||
2340 | if (INTEGERP (o)) | |
2341 | val = (CARD32) XFASTINT (o); | |
2342 | else if (FLOATP (o)) | |
2343 | val = (CARD32) XFLOAT (o); | |
2344 | else if (CONSP (o)) | |
2345 | val = (CARD32) cons_to_long (o); | |
2346 | else if (STRINGP (o)) | |
2347 | { | |
2348 | BLOCK_INPUT; | |
2349 | val = XInternAtom (dpy, (char *) SDATA (o), False); | |
2350 | UNBLOCK_INPUT; | |
2351 | } | |
2352 | else | |
2353 | error ("Wrong type, must be string, number or cons"); | |
2354 | ||
2355 | if (format == 8) | |
2356 | *d08++ = (CARD8) val; | |
2357 | else if (format == 16) | |
2358 | *d16++ = (CARD16) val; | |
2359 | else | |
2360 | *d32++ = val; | |
2361 | } | |
2362 | } | |
2363 | ||
2364 | /* Convert an array of C values to a Lisp list. | |
2365 | F is the frame to be used to look up X atoms if the TYPE is XA_ATOM. | |
2366 | DATA is a C array of values to be converted. | |
2367 | TYPE is the type of the data. Only XA_ATOM is special, it converts | |
2368 | each number in DATA to its corresponfing X atom as a symbol. | |
2369 | FORMAT is 8, 16 or 32 and gives the size in bits for each C value to | |
2370 | be stored in RET. | |
2371 | SIZE is the number of elements in DATA. | |
2372 | ||
2373 | Also see comment for selection_data_to_lisp_data above. */ | |
2374 | ||
2375 | Lisp_Object | |
2376 | x_property_data_to_lisp (f, data, type, format, size) | |
2377 | struct frame *f; | |
2378 | unsigned char *data; | |
2379 | Atom type; | |
2380 | int format; | |
2381 | unsigned long size; | |
2382 | { | |
2383 | return selection_data_to_lisp_data (FRAME_X_DISPLAY (f), | |
2384 | data, size*format/8, type, format); | |
2385 | } | |
2386 | ||
2387 | /* Get the mouse position frame relative coordinates. */ | |
2388 | ||
2389 | static void | |
2390 | mouse_position_for_drop (f, x, y) | |
2391 | FRAME_PTR f; | |
2392 | int *x; | |
2393 | int *y; | |
2394 | { | |
2395 | Window root, dummy_window; | |
2396 | int dummy; | |
2397 | ||
2398 | BLOCK_INPUT; | |
2399 | ||
2400 | XQueryPointer (FRAME_X_DISPLAY (f), | |
2401 | DefaultRootWindow (FRAME_X_DISPLAY (f)), | |
2402 | ||
2403 | /* The root window which contains the pointer. */ | |
2404 | &root, | |
2405 | ||
2406 | /* Window pointer is on, not used */ | |
2407 | &dummy_window, | |
2408 | ||
2409 | /* The position on that root window. */ | |
2410 | x, y, | |
2411 | ||
2412 | /* x/y in dummy_window coordinates, not used. */ | |
2413 | &dummy, &dummy, | |
2414 | ||
2415 | /* Modifier keys and pointer buttons, about which | |
2416 | we don't care. */ | |
2417 | (unsigned int *) &dummy); | |
2418 | ||
2419 | ||
2420 | /* Absolute to relative. */ | |
2421 | *x -= f->left_pos + FRAME_OUTER_TO_INNER_DIFF_X (f); | |
2422 | *y -= f->top_pos + FRAME_OUTER_TO_INNER_DIFF_Y (f); | |
2423 | ||
2424 | UNBLOCK_INPUT; | |
2425 | } | |
2426 | ||
2427 | DEFUN ("x-get-atom-name", Fx_get_atom_name, | |
2428 | Sx_get_atom_name, 1, 2, 0, | |
2429 | doc: /* Return the X atom name for VALUE as a string. | |
2430 | VALUE may be a number or a cons where the car is the upper 16 bits and | |
2431 | the cdr is the lower 16 bits of a 32 bit value. | |
2432 | Use the display for FRAME or the current frame if FRAME is not given or nil. | |
2433 | ||
2434 | If the value is 0 or the atom is not known, return the empty string. */) | |
2435 | (value, frame) | |
2436 | Lisp_Object value, frame; | |
2437 | { | |
2438 | struct frame *f = check_x_frame (frame); | |
2439 | char *name = 0; | |
2440 | Lisp_Object ret = Qnil; | |
2441 | int count; | |
2442 | Display *dpy = FRAME_X_DISPLAY (f); | |
2443 | Atom atom; | |
2444 | ||
2445 | if (INTEGERP (value)) | |
2446 | atom = (Atom) XUINT (value); | |
2447 | else if (FLOATP (value)) | |
2448 | atom = (Atom) XFLOAT (value); | |
2449 | else if (CONSP (value)) | |
2450 | atom = (Atom) cons_to_long (value); | |
2451 | else | |
2452 | error ("Wrong type, value must be number or cons"); | |
2453 | ||
2454 | BLOCK_INPUT; | |
2455 | count = x_catch_errors (dpy); | |
2456 | ||
2457 | name = atom ? XGetAtomName (dpy, atom) : ""; | |
2458 | ||
2459 | if (! x_had_errors_p (dpy)) | |
2460 | ret = make_string (name, strlen (name)); | |
2461 | ||
2462 | x_uncatch_errors (dpy, count); | |
2463 | ||
2464 | if (atom && name) XFree (name); | |
2465 | if (NILP (ret)) ret = make_string ("", 0); | |
2466 | ||
2467 | UNBLOCK_INPUT; | |
2468 | ||
2469 | return ret; | |
2470 | } | |
2471 | ||
2472 | /* Convert an XClientMessageEvent to a Lisp event of type DRAG_N_DROP_EVENT. | |
2473 | TODO: Check if this client event really is a DND event? */ | |
2474 | ||
2475 | int | |
2476 | x_handle_dnd_message (f, event, dpyinfo, bufp) | |
2477 | struct frame *f; | |
2478 | XClientMessageEvent *event; | |
2479 | struct x_display_info *dpyinfo; | |
2480 | struct input_event *bufp; | |
2481 | { | |
2482 | Lisp_Object vec; | |
2483 | Lisp_Object frame; | |
2484 | unsigned long size = (8*sizeof (event->data))/event->format; | |
2485 | int x, y; | |
2486 | ||
2487 | XSETFRAME (frame, f); | |
2488 | ||
2489 | vec = Fmake_vector (4, Qnil); | |
2490 | AREF (vec, 0) = SYMBOL_NAME (x_atom_to_symbol (FRAME_X_DISPLAY (f), | |
2491 | event->message_type)); | |
2492 | AREF (vec, 1) = frame; | |
2493 | AREF (vec, 2) = XFASTINT (event->format); | |
2494 | AREF (vec, 3) = x_property_data_to_lisp (f, | |
2495 | event->data.b, | |
2496 | event->message_type, | |
2497 | event->format, | |
2498 | size); | |
2499 | ||
2500 | mouse_position_for_drop (f, &x, &y); | |
2501 | bufp->kind = DRAG_N_DROP_EVENT; | |
2502 | bufp->frame_or_window = Fcons (frame, vec); | |
2503 | bufp->timestamp = CurrentTime; | |
2504 | bufp->x = make_number (x); | |
2505 | bufp->y = make_number (y); | |
2506 | bufp->arg = Qnil; | |
2507 | bufp->modifiers = 0; | |
2508 | ||
2509 | return 1; | |
2510 | } | |
2511 | ||
2512 | DEFUN ("x-send-client-message", Fx_send_client_event, | |
2513 | Sx_send_client_message, 6, 6, 0, | |
2514 | doc: /* Send a client message of MESSAGE-TYPE to window DEST on DISPLAY. | |
2515 | ||
2516 | For DISPLAY, specify either a frame or a display name (a string). | |
2517 | If DISPLAY is nil, that stands for the selected frame's display. | |
2518 | DEST may be a number, in which case it is a Window id. The value 0 may | |
2519 | be used to send to the root window of the DISPLAY. | |
2520 | If DEST is a cons, it is converted to a 32 bit number | |
2521 | with the high 16 bits from the car and the lower 16 bit from the cdr. That | |
2522 | number is then used as a window id. | |
2523 | If DEST is a frame the event is sent to the outer window of that frame. | |
2524 | Nil means the currently selected frame. | |
2525 | If DEST is the string "PointerWindow" the event is sent to the window that | |
2526 | contains the pointer. If DEST is the string "InputFocus" the event is | |
2527 | sent to the window that has the input focus. | |
2528 | FROM is the frame sending the event. Use nil for currently selected frame. | |
2529 | MESSAGE-TYPE is the name of an Atom as a string. | |
2530 | FORMAT must be one of 8, 16 or 32 and determines the size of the values in | |
2531 | bits. VALUES is a list of numbers, cons and/or strings containing the values | |
2532 | to send. If a value is a string, it is converted to an Atom and the value of | |
2533 | the Atom is sent. If a value is a cons, it is converted to a 32 bit number | |
2534 | with the high 16 bits from the car and the lower 16 bit from the cdr. | |
2535 | If more values than fits into the event is given, the excessive values | |
2536 | are ignored. */) | |
2537 | (display, dest, from, message_type, format, values) | |
2538 | Lisp_Object display, dest, from, message_type, format, values; | |
2539 | { | |
2540 | struct x_display_info *dpyinfo = check_x_display_info (display); | |
2541 | Window wdest; | |
2542 | XEvent event; | |
2543 | Lisp_Object cons; | |
2544 | int size; | |
2545 | struct frame *f = check_x_frame (from); | |
2546 | int count; | |
2547 | int to_root; | |
2548 | ||
2549 | CHECK_STRING (message_type); | |
2550 | CHECK_NUMBER (format); | |
2551 | CHECK_CONS (values); | |
2552 | ||
2553 | if (x_check_property_data (values) == -1) | |
2554 | error ("Bad data in VALUES, must be number, cons or string"); | |
2555 | ||
2556 | event.xclient.type = ClientMessage; | |
2557 | event.xclient.format = XFASTINT (format); | |
2558 | ||
2559 | if (event.xclient.format != 8 && event.xclient.format != 16 | |
2560 | && event.xclient.format != 32) | |
2561 | error ("FORMAT must be one of 8, 16 or 32"); | |
2562 | ||
2563 | if (FRAMEP (dest) || NILP (dest)) | |
2564 | { | |
2565 | struct frame *fdest = check_x_frame (dest); | |
2566 | wdest = FRAME_OUTER_WINDOW (fdest); | |
2567 | } | |
2568 | else if (STRINGP (dest)) | |
2569 | { | |
2570 | if (strcmp (SDATA (dest), "PointerWindow") == 0) | |
2571 | wdest = PointerWindow; | |
2572 | else if (strcmp (SDATA (dest), "InputFocus") == 0) | |
2573 | wdest = InputFocus; | |
2574 | else | |
2575 | error ("DEST as a string must be one of PointerWindow or InputFocus"); | |
2576 | } | |
2577 | else if (INTEGERP (dest)) | |
2578 | wdest = (Window) XFASTINT (dest); | |
2579 | else if (FLOATP (dest)) | |
2580 | wdest = (Window) XFLOAT (dest); | |
2581 | else if (CONSP (dest)) | |
2582 | { | |
2583 | if (! NUMBERP (XCAR (dest)) || ! NUMBERP (XCDR (dest))) | |
2584 | error ("Both car and cdr for DEST must be numbers"); | |
2585 | else | |
2586 | wdest = (Window) cons_to_long (dest); | |
2587 | } | |
2588 | else | |
2589 | error ("DEST must be a frame, nil, string, number or cons"); | |
2590 | ||
2591 | if (wdest == 0) wdest = dpyinfo->root_window; | |
2592 | to_root = wdest == dpyinfo->root_window; | |
2593 | ||
2594 | for (cons = values, size = 0; CONSP (cons); cons = XCDR (cons), ++size) | |
2595 | ; | |
2596 | ||
2597 | BLOCK_INPUT; | |
2598 | ||
2599 | event.xclient.message_type | |
2600 | = XInternAtom (dpyinfo->display, SDATA (message_type), False); | |
2601 | event.xclient.display = dpyinfo->display; | |
2602 | ||
2603 | /* Some clients (metacity for example) expects sending window to be here | |
2604 | when sending to the root window. */ | |
2605 | event.xclient.window = to_root ? FRAME_OUTER_WINDOW (f) : wdest; | |
2606 | ||
2607 | memset (event.xclient.data.b, 0, sizeof (event.xclient.data.b)); | |
2608 | x_fill_property_data (dpyinfo->display, values, event.xclient.data.b, | |
2609 | event.xclient.format); | |
2610 | ||
2611 | /* If event mask is 0 the event is sent to the client that created | |
2612 | the destination window. But if we are sending to the root window, | |
2613 | there is no such client. Then we set the event mask to 0xffff. The | |
2614 | event then goes to clients selecting for events on the root window. */ | |
2615 | count = x_catch_errors (dpyinfo->display); | |
2616 | { | |
2617 | int propagate = to_root ? False : True; | |
2618 | unsigned mask = to_root ? 0xffff : 0; | |
2619 | XSendEvent (dpyinfo->display, wdest, propagate, mask, &event); | |
2620 | XFlush (dpyinfo->display); | |
2621 | } | |
2622 | x_uncatch_errors (dpyinfo->display, count); | |
2623 | UNBLOCK_INPUT; | |
2624 | ||
2625 | return Qnil; | |
2626 | } | |
2627 | ||
2628 | \f | |
ede4db72 RS |
2629 | void |
2630 | syms_of_xselect () | |
2631 | { | |
ede4db72 RS |
2632 | defsubr (&Sx_get_selection_internal); |
2633 | defsubr (&Sx_own_selection_internal); | |
2634 | defsubr (&Sx_disown_selection_internal); | |
2635 | defsubr (&Sx_selection_owner_p); | |
2636 | defsubr (&Sx_selection_exists_p); | |
2637 | ||
2638 | #ifdef CUT_BUFFER_SUPPORT | |
a87ed99c RS |
2639 | defsubr (&Sx_get_cut_buffer_internal); |
2640 | defsubr (&Sx_store_cut_buffer_internal); | |
2641 | defsubr (&Sx_rotate_cut_buffers_internal); | |
ede4db72 RS |
2642 | #endif |
2643 | ||
1fb3821b JD |
2644 | defsubr (&Sx_get_atom_name); |
2645 | defsubr (&Sx_send_client_message); | |
2646 | ||
ede4db72 RS |
2647 | reading_selection_reply = Fcons (Qnil, Qnil); |
2648 | staticpro (&reading_selection_reply); | |
2649 | reading_selection_window = 0; | |
2650 | reading_which_selection = 0; | |
2651 | ||
2652 | property_change_wait_list = 0; | |
2f65feb6 | 2653 | prop_location_identifier = 0; |
ede4db72 RS |
2654 | property_change_reply = Fcons (Qnil, Qnil); |
2655 | staticpro (&property_change_reply); | |
2656 | ||
2657 | Vselection_alist = Qnil; | |
2658 | staticpro (&Vselection_alist); | |
2659 | ||
2660 | DEFVAR_LISP ("selection-converter-alist", &Vselection_converter_alist, | |
8c1a1077 PJ |
2661 | doc: /* An alist associating X Windows selection-types with functions. |
2662 | These functions are called to convert the selection, with three args: | |
2663 | the name of the selection (typically `PRIMARY', `SECONDARY', or `CLIPBOARD'); | |
2664 | a desired type to which the selection should be converted; | |
2665 | and the local selection value (whatever was given to `x-own-selection'). | |
2666 | ||
2667 | The function should return the value to send to the X server | |
2668 | \(typically a string). A return value of nil | |
2669 | means that the conversion could not be done. | |
2670 | A return value which is the symbol `NULL' | |
2671 | means that a side-effect was executed, | |
2672 | and there is no meaningful selection value. */); | |
ede4db72 RS |
2673 | Vselection_converter_alist = Qnil; |
2674 | ||
2675 | DEFVAR_LISP ("x-lost-selection-hooks", &Vx_lost_selection_hooks, | |
8c1a1077 PJ |
2676 | doc: /* A list of functions to be called when Emacs loses an X selection. |
2677 | \(This happens when some other X client makes its own selection | |
2678 | or when a Lisp program explicitly clears the selection.) | |
2679 | The functions are called with one argument, the selection type | |
2680 | \(a symbol, typically `PRIMARY', `SECONDARY', or `CLIPBOARD'). */); | |
ede4db72 RS |
2681 | Vx_lost_selection_hooks = Qnil; |
2682 | ||
2683 | DEFVAR_LISP ("x-sent-selection-hooks", &Vx_sent_selection_hooks, | |
8c1a1077 PJ |
2684 | doc: /* A list of functions to be called when Emacs answers a selection request. |
2685 | The functions are called with four arguments: | |
2686 | - the selection name (typically `PRIMARY', `SECONDARY', or `CLIPBOARD'); | |
2687 | - the selection-type which Emacs was asked to convert the | |
2688 | selection into before sending (for example, `STRING' or `LENGTH'); | |
2689 | - a flag indicating success or failure for responding to the request. | |
2690 | We might have failed (and declined the request) for any number of reasons, | |
2691 | including being asked for a selection that we no longer own, or being asked | |
2692 | to convert into a type that we don't know about or that is inappropriate. | |
2693 | This hook doesn't let you change the behavior of Emacs's selection replies, | |
2694 | it merely informs you that they have happened. */); | |
ede4db72 RS |
2695 | Vx_sent_selection_hooks = Qnil; |
2696 | ||
93e4ce1b | 2697 | DEFVAR_LISP ("selection-coding-system", &Vselection_coding_system, |
8c1a1077 PJ |
2698 | doc: /* Coding system for communicating with other X clients. |
2699 | When sending or receiving text via cut_buffer, selection, and clipboard, | |
2700 | the text is encoded or decoded by this coding system. | |
5a79ea57 EZ |
2701 | The default value is `compound-text-with-extensions'. */); |
2702 | Vselection_coding_system = intern ("compound-text-with-extensions"); | |
2584c9ec | 2703 | |
16cd5029 | 2704 | DEFVAR_LISP ("next-selection-coding-system", &Vnext_selection_coding_system, |
8c1a1077 PJ |
2705 | doc: /* Coding system for the next communication with other X clients. |
2706 | Usually, `selection-coding-system' is used for communicating with | |
f8f8d464 JB |
2707 | other X clients. But, if this variable is set, it is used for the |
2708 | next communication only. After the communication, this variable is | |
8c1a1077 | 2709 | set to nil. */); |
16cd5029 KH |
2710 | Vnext_selection_coding_system = Qnil; |
2711 | ||
ede4db72 | 2712 | DEFVAR_INT ("x-selection-timeout", &x_selection_timeout, |
8c1a1077 PJ |
2713 | doc: /* Number of milliseconds to wait for a selection reply. |
2714 | If the selection owner doesn't reply in this time, we give up. | |
2715 | A value of 0 means wait as long as necessary. This is initialized from the | |
2716 | \"*selectionTimeout\" resource. */); | |
ede4db72 RS |
2717 | x_selection_timeout = 0; |
2718 | ||
2719 | QPRIMARY = intern ("PRIMARY"); staticpro (&QPRIMARY); | |
2720 | QSECONDARY = intern ("SECONDARY"); staticpro (&QSECONDARY); | |
2721 | QSTRING = intern ("STRING"); staticpro (&QSTRING); | |
2722 | QINTEGER = intern ("INTEGER"); staticpro (&QINTEGER); | |
2723 | QCLIPBOARD = intern ("CLIPBOARD"); staticpro (&QCLIPBOARD); | |
2724 | QTIMESTAMP = intern ("TIMESTAMP"); staticpro (&QTIMESTAMP); | |
2725 | QTEXT = intern ("TEXT"); staticpro (&QTEXT); | |
e6c7c988 | 2726 | QCOMPOUND_TEXT = intern ("COMPOUND_TEXT"); staticpro (&QCOMPOUND_TEXT); |
5109c8dd | 2727 | QUTF8_STRING = intern ("UTF8_STRING"); staticpro (&QUTF8_STRING); |
ede4db72 RS |
2728 | QTIMESTAMP = intern ("TIMESTAMP"); staticpro (&QTIMESTAMP); |
2729 | QDELETE = intern ("DELETE"); staticpro (&QDELETE); | |
2730 | QMULTIPLE = intern ("MULTIPLE"); staticpro (&QMULTIPLE); | |
2731 | QINCR = intern ("INCR"); staticpro (&QINCR); | |
2732 | QEMACS_TMP = intern ("_EMACS_TMP_"); staticpro (&QEMACS_TMP); | |
2733 | QTARGETS = intern ("TARGETS"); staticpro (&QTARGETS); | |
2734 | QATOM = intern ("ATOM"); staticpro (&QATOM); | |
2735 | QATOM_PAIR = intern ("ATOM_PAIR"); staticpro (&QATOM_PAIR); | |
2736 | QNULL = intern ("NULL"); staticpro (&QNULL); | |
5a79ea57 EZ |
2737 | Qcompound_text_with_extensions = intern ("compound-text-with-extensions"); |
2738 | staticpro (&Qcompound_text_with_extensions); | |
ede4db72 RS |
2739 | |
2740 | #ifdef CUT_BUFFER_SUPPORT | |
2741 | QCUT_BUFFER0 = intern ("CUT_BUFFER0"); staticpro (&QCUT_BUFFER0); | |
2742 | QCUT_BUFFER1 = intern ("CUT_BUFFER1"); staticpro (&QCUT_BUFFER1); | |
2743 | QCUT_BUFFER2 = intern ("CUT_BUFFER2"); staticpro (&QCUT_BUFFER2); | |
2744 | QCUT_BUFFER3 = intern ("CUT_BUFFER3"); staticpro (&QCUT_BUFFER3); | |
2745 | QCUT_BUFFER4 = intern ("CUT_BUFFER4"); staticpro (&QCUT_BUFFER4); | |
2746 | QCUT_BUFFER5 = intern ("CUT_BUFFER5"); staticpro (&QCUT_BUFFER5); | |
2747 | QCUT_BUFFER6 = intern ("CUT_BUFFER6"); staticpro (&QCUT_BUFFER6); | |
2748 | QCUT_BUFFER7 = intern ("CUT_BUFFER7"); staticpro (&QCUT_BUFFER7); | |
2749 | #endif | |
2750 | ||
e57ad4d8 KH |
2751 | Qforeign_selection = intern ("foreign-selection"); |
2752 | staticpro (&Qforeign_selection); | |
ede4db72 | 2753 | } |
ab5796a9 MB |
2754 | |
2755 | /* arch-tag: 7c293b0f-9918-4f69-8ac7-03e142307236 | |
2756 | (do not change this comment) */ |