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annotate src/select-gtk.c @ 5724:ede80ef92a74
Make soft links in src for module source files, if built in to the executable.
This ensures that those files are built with the same compiler flags as all
other source files.
See these xemacs-beta messages:
<CAHCOHQn+q=Xuwq+y68dvqi7afAP9f-TdB7=8YiZ8VYO816sjHg@mail.gmail.com>
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| author | Jerry James <james@xemacs.org> |
|---|---|
| date | Sat, 02 Mar 2013 14:32:37 -0700 |
| parents | 79e9934779c1 |
| children |
| rev | line source |
|---|---|
| 462 | 1 /* GTK selection processing for XEmacs |
| 2 Copyright (C) 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc. | |
| 771 | 3 Copyright (C) 2001 Ben Wing. |
| 462 | 4 |
| 5 This file is part of XEmacs. | |
| 6 | |
|
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7 XEmacs is free software: you can redistribute it and/or modify it |
| 462 | 8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation, either version 3 of the License, or (at your |
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10 option) any later version. |
| 462 | 11 |
| 12 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
|
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18 along with XEmacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 462 | 19 |
| 20 /* Synched up with: Not synched with FSF. */ | |
| 21 | |
| 22 /* Authorship: | |
| 23 | |
| 24 Written by Kevin Gallo for FSF Emacs. | |
| 25 Rewritten for mswindows by Jonathan Harris, December 1997 for 21.0. | |
| 26 Rewritten for GTK by William Perry, April 2000 for 21.1 | |
| 27 */ | |
| 28 | |
| 29 | |
| 30 #include <config.h> | |
| 31 #include "lisp.h" | |
| 872 | 32 |
| 462 | 33 #include "buffer.h" |
| 872 | 34 #include "device-impl.h" |
| 35 #include "events.h" | |
| 36 #include "frame.h" | |
| 37 #include "opaque.h" | |
| 462 | 38 #include "select.h" |
| 872 | 39 |
| 40 #include "console-gtk-impl.h" | |
| 462 | 41 |
| 42 static Lisp_Object Vretrieved_selection; | |
| 43 static gboolean waiting_for_selection; | |
| 44 Lisp_Object Vgtk_sent_selection_hooks; | |
| 45 | |
| 778 | 46 extern int lisp_to_time (Lisp_Object, time_t *); |
| 47 extern Lisp_Object time_to_lisp (time_t); | |
| 48 | |
| 647 | 49 static GdkAtom |
| 2286 | 50 symbol_to_gtk_atom (struct device *UNUSED (d), Lisp_Object sym, |
| 51 int only_if_exists) | |
| 647 | 52 { |
| 53 if (NILP (sym)) return GDK_SELECTION_PRIMARY; | |
| 54 if (EQ (sym, Qt)) return GDK_SELECTION_SECONDARY; | |
| 55 if (EQ (sym, QPRIMARY)) return GDK_SELECTION_PRIMARY; | |
| 56 if (EQ (sym, QSECONDARY)) return GDK_SELECTION_SECONDARY; | |
| 57 | |
| 58 { | |
| 59 const Extbyte *nameext; | |
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60 nameext = LISP_STRING_TO_EXTERNAL (Fsymbol_name (sym), Qctext); |
| 647 | 61 return gdk_atom_intern (nameext, only_if_exists ? TRUE : FALSE); |
| 62 } | |
| 63 } | |
| 462 | 64 |
| 647 | 65 static Lisp_Object |
| 2286 | 66 atom_to_symbol (struct device *UNUSED (d), GdkAtom atom) |
| 647 | 67 { |
| 68 if (atom == GDK_SELECTION_PRIMARY) return (QPRIMARY); | |
| 69 if (atom == GDK_SELECTION_SECONDARY) return (QSECONDARY); | |
| 70 | |
| 71 { | |
| 867 | 72 Ibyte *intstr; |
| 647 | 73 Extbyte *str = gdk_atom_name (atom); |
| 74 | |
| 75 if (! str) return Qnil; | |
| 462 | 76 |
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77 intstr = EXTERNAL_TO_ITEXT (str, Qctext); |
| 647 | 78 g_free (str); |
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79 return intern_istring (intstr); |
| 647 | 80 } |
| 81 } | |
| 82 | |
| 4984 | 83 #define THIS_IS_GTK |
| 84 #include "select-xlike-inc.c" | |
| 85 #undef THIS_IS_GTK | |
| 647 | 86 |
| 87 | |
| 462 | 88 /* Set the selection data to GDK_NONE and NULL data, meaning we were |
| 89 ** unable to do what they wanted. | |
| 90 */ | |
| 91 static void | |
| 92 gtk_decline_selection_request (GtkSelectionData *data) | |
| 93 { | |
| 94 gtk_selection_data_set (data, GDK_NONE, 0, NULL, 0); | |
| 95 } | |
| 96 | |
| 97 /* Used as an unwind-protect clause so that, if a selection-converter signals | |
| 98 an error, we tell the requestor that we were unable to do what they wanted | |
| 99 before we throw to top-level or go into the debugger or whatever. | |
| 100 */ | |
| 101 struct _selection_closure | |
| 102 { | |
| 103 GtkSelectionData *data; | |
| 104 gboolean successful; | |
| 105 }; | |
| 106 | |
| 107 static Lisp_Object | |
| 108 gtk_selection_request_lisp_error (Lisp_Object closure) | |
| 109 { | |
| 110 struct _selection_closure *cl = (struct _selection_closure *) | |
| 111 get_opaque_ptr (closure); | |
| 112 | |
| 113 free_opaque_ptr (closure); | |
| 114 if (cl->successful == TRUE) | |
| 115 return Qnil; | |
| 116 gtk_decline_selection_request (cl->data); | |
| 117 return Qnil; | |
| 118 } | |
| 119 | |
| 120 /* This provides the current selection to a requester. | |
| 121 ** | |
| 122 ** This is connected to the selection_get() signal of the application | |
| 123 ** shell in device-gtk.c:gtk_init_device(). | |
| 124 ** | |
| 125 ** This is radically different than the old selection code (21.1.x), | |
| 126 ** but has been modeled after the X code, and appears to work. | |
| 127 ** | |
| 128 ** WMP Feb 12 2001 | |
| 129 */ | |
| 130 void | |
| 2286 | 131 emacs_gtk_selection_handle (GtkWidget *UNUSED (widget), |
| 462 | 132 GtkSelectionData *selection_data, |
| 2286 | 133 guint UNUSED (info), |
| 462 | 134 guint time_stamp, |
| 2286 | 135 gpointer UNUSED (data)) |
| 462 | 136 { |
| 137 /* This function can GC */ | |
| 138 struct gcpro gcpro1, gcpro2; | |
| 139 Lisp_Object temp_obj; | |
| 140 Lisp_Object selection_symbol; | |
| 141 Lisp_Object target_symbol = Qnil; | |
| 142 Lisp_Object converted_selection = Qnil; | |
| 143 guint32 local_selection_time; | |
| 144 Lisp_Object successful_p = Qnil; | |
| 145 int count; | |
| 146 struct device *d = decode_gtk_device (Qnil); | |
| 147 struct _selection_closure *cl = NULL; | |
| 148 | |
| 149 GCPRO2 (converted_selection, target_symbol); | |
| 150 | |
| 151 selection_symbol = atom_to_symbol (d, selection_data->selection); | |
| 152 target_symbol = atom_to_symbol (d, selection_data->target); | |
| 153 | |
| 154 #if 0 /* #### MULTIPLE doesn't work yet */ | |
| 155 if (EQ (target_symbol, QMULTIPLE)) | |
| 156 target_symbol = fetch_multiple_target (selection_data); | |
| 157 #endif | |
| 158 | |
| 2620 | 159 temp_obj = get_selection_raw_time(selection_symbol); |
| 462 | 160 |
| 161 if (NILP (temp_obj)) | |
| 162 { | |
| 163 /* We don't appear to have the selection. */ | |
| 164 gtk_decline_selection_request (selection_data); | |
| 165 | |
| 166 goto DONE_LABEL; | |
| 167 } | |
| 168 | |
| 169 local_selection_time = * (guint32 *) XOPAQUE_DATA (temp_obj); | |
| 170 | |
| 171 if (time_stamp != GDK_CURRENT_TIME && | |
| 172 local_selection_time > time_stamp) | |
| 173 { | |
| 174 /* Someone asked for the selection, and we have one, but not the one | |
| 175 they're looking for. */ | |
| 176 gtk_decline_selection_request (selection_data); | |
| 177 goto DONE_LABEL; | |
| 178 } | |
| 179 | |
| 180 converted_selection = select_convert_out (selection_symbol, | |
| 181 target_symbol, Qnil); | |
| 182 | |
| 183 /* #### Is this the right thing to do? I'm no X expert. -- ajh */ | |
| 184 if (NILP (converted_selection)) | |
| 185 { | |
| 186 /* We don't appear to have a selection in that data type. */ | |
| 187 gtk_decline_selection_request (selection_data); | |
| 188 goto DONE_LABEL; | |
| 189 } | |
| 190 | |
| 191 count = specpdl_depth (); | |
| 192 | |
| 2367 | 193 cl = xnew (struct _selection_closure); |
| 462 | 194 cl->data = selection_data; |
| 195 cl->successful = FALSE; | |
| 196 | |
| 197 record_unwind_protect (gtk_selection_request_lisp_error, | |
| 198 make_opaque_ptr (cl)); | |
| 199 | |
| 200 { | |
| 2367 | 201 Rawbyte *data; |
| 665 | 202 Bytecount size; |
| 462 | 203 int format; |
| 204 GdkAtom type; | |
| 205 lisp_data_to_selection_data (d, converted_selection, | |
| 206 &data, &type, &size, &format); | |
| 207 | |
| 647 | 208 gtk_selection_data_set (selection_data, type, format, data, |
| 209 /* #### is this right? */ | |
| 210 (unsigned int) size); | |
| 462 | 211 successful_p = Qt; |
| 212 /* Tell x_selection_request_lisp_error() it's cool. */ | |
| 213 cl->successful = TRUE; | |
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214 xfree (data); |
| 462 | 215 } |
| 216 | |
| 771 | 217 unbind_to (count); |
| 462 | 218 |
| 219 DONE_LABEL: | |
| 220 | |
| 1726 | 221 if (cl) |
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222 xfree (cl); |
| 462 | 223 |
| 224 UNGCPRO; | |
| 225 | |
| 226 /* Let random lisp code notice that the selection has been asked for. */ | |
| 227 { | |
| 228 Lisp_Object val = Vgtk_sent_selection_hooks; | |
| 229 if (!UNBOUNDP (val) && !NILP (val)) | |
| 230 { | |
| 231 Lisp_Object rest; | |
| 232 if (CONSP (val) && !EQ (XCAR (val), Qlambda)) | |
| 233 for (rest = val; !NILP (rest); rest = Fcdr (rest)) | |
| 234 call3 (Fcar (rest), selection_symbol, target_symbol, successful_p); | |
| 235 else | |
| 236 call3 (val, selection_symbol, target_symbol, successful_p); | |
| 237 } | |
| 238 } | |
| 239 } | |
| 240 | |
| 241 | |
| 746 | 242 void |
| 2286 | 243 emacs_gtk_selection_clear_event_handle (GtkWidget *UNUSED (widget), |
| 746 | 244 GdkEventSelection *event, |
| 2286 | 245 gpointer UNUSED (data)) |
| 746 | 246 { |
| 247 GdkAtom selection = event->selection; | |
| 248 guint32 changed_owner_time = event->time; | |
| 249 struct device *d = decode_gtk_device (Qnil); | |
| 250 | |
| 251 Lisp_Object selection_symbol, local_selection_time_lisp; | |
| 252 guint32 local_selection_time; | |
| 253 | |
| 254 selection_symbol = atom_to_symbol (d, selection); | |
| 255 | |
| 2620 | 256 local_selection_time_lisp = get_selection_raw_time (selection_symbol); |
| 746 | 257 |
| 258 /* We don't own the selection, so that's fine. */ | |
| 259 if (NILP (local_selection_time_lisp)) | |
| 260 return; | |
| 261 | |
| 262 local_selection_time = *(guint32 *) XOPAQUE_DATA (local_selection_time_lisp); | |
| 263 | |
| 264 /* This SelectionClear is for a selection that we no longer own, so we can | |
| 265 disregard it. (That is, we have reasserted the selection since this | |
| 266 request was generated.) | |
| 267 */ | |
| 268 if (changed_owner_time != GDK_CURRENT_TIME && | |
| 269 local_selection_time > changed_owner_time) | |
| 270 return; | |
| 271 | |
| 272 handle_selection_clear (selection_symbol); | |
| 273 } | |
| 274 | |
| 275 | |
| 462 | 276 |
| 277 static GtkWidget *reading_selection_reply; | |
| 278 static GdkAtom reading_which_selection; | |
| 279 static int selection_reply_timed_out; | |
| 280 | |
| 281 /* Gets the current selection owned by another application */ | |
| 282 void | |
| 2286 | 283 emacs_gtk_selection_received (GtkWidget *UNUSED (widget), |
| 462 | 284 GtkSelectionData *selection_data, |
| 2286 | 285 gpointer UNUSED (user_data)) |
| 462 | 286 { |
| 287 waiting_for_selection = FALSE; | |
| 288 Vretrieved_selection = Qnil; | |
| 289 | |
| 290 reading_selection_reply = NULL; | |
| 291 | |
| 292 signal_fake_event (); | |
| 293 | |
| 294 if (selection_data->length < 0) | |
| 295 { | |
| 296 return; | |
| 297 } | |
| 298 | |
| 299 Vretrieved_selection = | |
| 300 selection_data_to_lisp_data (NULL, | |
| 301 selection_data->data, | |
| 302 selection_data->length, | |
| 303 selection_data->type, | |
| 304 selection_data->format); | |
| 305 } | |
| 306 | |
| 307 static int | |
| 2286 | 308 selection_reply_done (void *UNUSED (ignore)) |
| 462 | 309 { |
| 310 return !reading_selection_reply; | |
| 311 } | |
| 312 | |
| 313 /* Do protocol to read selection-data from the server. | |
| 314 Converts this to lisp data and returns it. | |
| 315 */ | |
| 316 static Lisp_Object | |
| 317 gtk_get_foreign_selection (Lisp_Object selection_symbol, | |
| 318 Lisp_Object target_type) | |
| 319 { | |
| 320 /* This function can GC */ | |
| 321 struct device *d = decode_gtk_device (Qnil); | |
| 322 GtkWidget *requestor = DEVICE_GTK_APP_SHELL (d); | |
| 323 guint32 requestor_time = DEVICE_GTK_MOUSE_TIMESTAMP (d); | |
| 324 GdkAtom selection_atom = symbol_to_gtk_atom (d, selection_symbol, 0); | |
| 325 int speccount; | |
| 326 GdkAtom type_atom = symbol_to_gtk_atom (d, (CONSP (target_type) ? | |
| 327 XCAR (target_type) : target_type), 0); | |
| 328 | |
| 329 gtk_selection_convert (requestor, selection_atom, type_atom, | |
| 330 requestor_time); | |
| 331 | |
| 332 signal_fake_event (); | |
| 333 | |
| 334 /* Block until the reply has been read. */ | |
| 335 reading_selection_reply = requestor; | |
| 336 reading_which_selection = selection_atom; | |
| 337 selection_reply_timed_out = 0; | |
| 338 | |
| 339 speccount = specpdl_depth (); | |
| 340 | |
| 341 #if 0 | |
| 342 /* add a timeout handler */ | |
| 343 if (gtk_selection_timeout > 0) | |
| 344 { | |
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345 Lisp_Object id = Fadd_timeout (make_fixnum (x_selection_timeout), |
| 462 | 346 Qx_selection_reply_timeout_internal, |
| 347 Qnil, Qnil); | |
| 348 record_unwind_protect (Fdisable_timeout, id); | |
| 349 } | |
| 350 #endif | |
| 351 | |
| 352 /* This is ^Gable */ | |
| 353 wait_delaying_user_input (selection_reply_done, 0); | |
| 354 | |
| 355 if (selection_reply_timed_out) | |
| 563 | 356 signal_error (Qselection_conversion_error, "timed out waiting for reply from selection owner", Qunbound); |
| 462 | 357 |
| 771 | 358 unbind_to (speccount); |
| 462 | 359 |
| 360 /* otherwise, the selection is waiting for us on the requested property. */ | |
| 361 return select_convert_in (selection_symbol, | |
| 362 target_type, | |
| 363 Vretrieved_selection); | |
| 364 } | |
| 365 | |
| 366 | |
| 367 #if 0 | |
| 368 static void | |
| 369 gtk_get_window_property (struct device *d, GtkWidget *window, GdkAtom property, | |
| 370 Extbyte **data_ret, int *bytes_ret, | |
| 371 GdkAtom *actual_type_ret, int *actual_format_ret, | |
| 372 unsigned long *actual_size_ret, int delete_p) | |
| 373 { | |
| 647 | 374 /* deleted */ |
| 462 | 375 } |
| 376 | |
| 377 | |
| 378 static void | |
| 379 receive_incremental_selection (Display *display, Window window, Atom property, | |
| 380 /* this one is for error messages only */ | |
| 381 Lisp_Object target_type, | |
| 382 unsigned int min_size_bytes, | |
| 383 Extbyte **data_ret, int *size_bytes_ret, | |
| 384 Atom *type_ret, int *format_ret, | |
| 385 unsigned long *size_ret) | |
| 386 { | |
| 647 | 387 /* deleted */ |
| 462 | 388 } |
| 389 | |
| 390 | |
| 391 static Lisp_Object | |
| 392 gtk_get_window_property_as_lisp_data (struct device *d, | |
| 393 GtkWidget *window, | |
| 394 GdkAtom property, | |
| 395 /* next two for error messages only */ | |
| 396 Lisp_Object target_type, | |
| 397 GdkAtom selection_atom) | |
| 398 { | |
| 647 | 399 /* deleted */ |
| 462 | 400 } |
| 401 #endif | |
| 402 | |
| 403 | |
| 404 | |
| 405 static Lisp_Object | |
| 2286 | 406 gtk_own_selection (Lisp_Object selection_name, |
| 407 Lisp_Object UNUSED (selection_value), | |
| 408 Lisp_Object UNUSED (how_to_add), | |
| 409 Lisp_Object UNUSED (selection_type), int UNUSED (owned_p)) | |
| 462 | 410 { |
| 411 struct device *d = decode_gtk_device (Qnil); | |
| 412 GtkWidget *selecting_window = GTK_WIDGET (DEVICE_GTK_APP_SHELL (d)); | |
| 413 /* Use the time of the last-read mouse or keyboard event. | |
| 414 For selection purposes, we use this as a sleazy way of knowing what the | |
| 415 current time is in server-time. This assumes that the most recently read | |
| 416 mouse or keyboard event has something to do with the assertion of the | |
| 417 selection, which is probably true. | |
| 418 */ | |
| 419 guint32 thyme = DEVICE_GTK_MOUSE_TIMESTAMP (d); | |
| 420 GdkAtom selection_atom; | |
| 421 | |
| 422 CHECK_SYMBOL (selection_name); | |
| 423 selection_atom = symbol_to_gtk_atom (d, selection_name, 0); | |
| 424 | |
| 425 gtk_selection_owner_set (selecting_window, | |
| 426 selection_atom, | |
| 427 thyme); | |
| 428 | |
| 2620 | 429 /* [[ We do NOT use time_to_lisp() here any more, like we used to. |
| 462 | 430 That assumed equivalence of time_t and Time, which is not |
| 431 necessarily the case (e.g. under OSF on the Alphas, where | |
| 432 Time is a 64-bit quantity and time_t is a 32-bit quantity). | |
| 433 | |
| 2620 | 434 Opaque pointers are the clean way to go here. ]] |
| 435 | |
| 436 See my comment on the same issue in select-x.c -- Aidan. */ | |
| 793 | 437 return make_opaque (&thyme, sizeof (thyme)); |
| 462 | 438 } |
| 439 | |
| 440 static void | |
| 441 gtk_disown_selection (Lisp_Object selection, Lisp_Object timeval) | |
| 442 { | |
| 443 struct device *d = decode_gtk_device (Qnil); | |
| 444 GdkAtom selection_atom; | |
| 445 guint32 timestamp; | |
| 446 | |
| 447 CHECK_SYMBOL (selection); | |
| 448 selection_atom = symbol_to_gtk_atom (d, selection, 0); | |
| 449 | |
| 450 if (NILP (timeval)) | |
| 451 timestamp = DEVICE_GTK_MOUSE_TIMESTAMP (d); | |
| 452 else | |
| 453 { | |
| 454 time_t the_time; | |
| 455 lisp_to_time (timeval, &the_time); | |
| 456 timestamp = (guint32) the_time; | |
| 457 } | |
| 458 | |
| 459 gtk_selection_owner_set (NULL, selection_atom, timestamp); | |
| 460 } | |
| 461 | |
| 462 static Lisp_Object | |
| 463 gtk_selection_exists_p (Lisp_Object selection, | |
| 2286 | 464 Lisp_Object UNUSED (selection_type)) |
| 462 | 465 { |
| 466 struct device *d = decode_gtk_device (Qnil); | |
| 467 | |
| 468 return (gdk_selection_owner_get (symbol_to_gtk_atom (d, selection, 0)) ? Qt : Qnil); | |
| 469 } | |
| 470 | |
| 471 | |
| 472 | |
| 473 /************************************************************************/ | |
| 474 /* initialization */ | |
| 475 /************************************************************************/ | |
| 476 | |
| 477 void | |
| 478 syms_of_select_gtk (void) | |
| 479 { | |
| 480 } | |
| 481 | |
| 482 void | |
| 483 console_type_create_select_gtk (void) | |
| 484 { | |
| 485 CONSOLE_HAS_METHOD (gtk, own_selection); | |
| 486 CONSOLE_HAS_METHOD (gtk, disown_selection); | |
| 487 CONSOLE_HAS_METHOD (gtk, selection_exists_p); | |
| 488 CONSOLE_HAS_METHOD (gtk, get_foreign_selection); | |
| 489 } | |
| 490 | |
| 491 void | |
| 492 vars_of_select_gtk (void) | |
| 493 { | |
| 494 staticpro (&Vretrieved_selection); | |
| 495 Vretrieved_selection = Qnil; | |
| 496 | |
| 497 DEFVAR_LISP ("gtk-sent-selection-hooks", &Vgtk_sent_selection_hooks /* | |
| 498 A function or functions to be called after we have responded to some | |
| 499 other client's request for the value of a selection that we own. The | |
| 500 function(s) will be called with four arguments: | |
| 501 - the name of the selection (typically PRIMARY, SECONDARY, or CLIPBOARD); | |
| 502 - the name of the selection-type which we were requested to convert the | |
| 503 selection into before sending (for example, STRING or LENGTH); | |
| 504 - and whether we successfully transmitted the selection. | |
| 505 We might have failed (and declined the request) for any number of reasons, | |
| 506 including being asked for a selection that we no longer own, or being asked | |
| 507 to convert into a type that we don't know about or that is inappropriate. | |
| 508 This hook doesn't let you change the behavior of emacs's selection replies, | |
| 509 it merely informs you that they have happened. | |
| 510 */ ); | |
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511 Vgtk_sent_selection_hooks = Qnil; |
| 462 | 512 } |