Mercurial > hg > xemacs-beta
annotate src/select-msw.c @ 5938:699264ac20f1 cygwin
tls.h (why?) and skip-ascii.h added
| author | Henry Thompson <ht@markup.co.uk> |
|---|---|
| date | Wed, 08 Dec 2021 18:43:18 +0000 |
| parents | 56144c8593a8 |
| children |
| rev | line source |
|---|---|
| 428 | 1 /* mswindows selection processing for XEmacs |
| 2 Copyright (C) 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc. | |
| 800 | 3 Copyright (C) 2000, 2001, 2002 Ben Wing. |
| 428 | 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 |
| 428 | 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. |
| 428 | 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/>. */ |
| 428 | 19 |
| 20 /* Synched up with: Not synched with FSF. */ | |
| 21 | |
| 771 | 22 /* This file Mule-ized 7-00?? Needs some Unicode review. --ben */ |
| 23 | |
| 428 | 24 /* Authorship: |
| 25 | |
| 26 Written by Kevin Gallo for FSF Emacs. | |
| 27 Rewritten for mswindows by Jonathan Harris, December 1997 for 21.0. | |
| 771 | 28 Rewritten April 2000 by Ben Wing -- support device methods, Mule-ize. |
| 442 | 29 Hacked by Alastair Houghton, July 2000 for enhanced clipboard support. |
| 30 */ | |
| 428 | 31 |
| 32 #include <config.h> | |
| 33 #include "lisp.h" | |
| 771 | 34 #include "buffer.h" |
| 872 | 35 #include "frame-impl.h" |
| 428 | 36 #include "select.h" |
| 442 | 37 #include "opaque.h" |
| 38 #include "file-coding.h" | |
| 428 | 39 |
| 872 | 40 #include "console-msw-impl.h" |
| 428 | 41 |
| 771 | 42 static int in_own_selection; |
| 43 | |
| 442 | 44 /* A list of handles that we must release. Not accessible from Lisp. */ |
| 45 static Lisp_Object Vhandle_alist; | |
| 46 | |
| 771 | 47 void |
| 48 mswindows_handle_destroyclipboard (void) | |
| 49 { | |
| 50 /* We also receive a destroy message when we call EmptyClipboard() and | |
| 51 we already own it. In this case we don't want to call | |
| 52 handle_selection_clear() because it will remove what we're trying | |
| 53 to add! */ | |
| 54 if (!in_own_selection) | |
| 55 { | |
| 56 /* We own the clipboard and someone else wants it. Delete our | |
| 57 cached copy of the clipboard contents so we'll ask for it from | |
| 58 Windows again when someone does a paste, and destroy any memory | |
| 59 objects we hold on the clipboard that are not in the list of types | |
| 60 that Windows will delete itself. */ | |
| 61 mswindows_destroy_selection (QCLIPBOARD); | |
| 62 handle_selection_clear (QCLIPBOARD); | |
| 63 } | |
| 64 } | |
| 65 | |
| 66 static int | |
| 67 mswindows_empty_clipboard (void) | |
| 68 { | |
| 69 int retval; | |
| 70 | |
| 71 in_own_selection = 1; | |
| 72 retval = EmptyClipboard (); | |
| 73 in_own_selection = 0; | |
| 74 return retval; | |
| 75 } | |
| 76 | |
| 442 | 77 /* Test if this is an X symbol that we understand */ |
| 78 static int | |
| 79 x_sym_p (Lisp_Object value) | |
| 80 { | |
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81 if (NILP (value) || FIXNUMP (value)) |
| 442 | 82 return 0; |
| 83 | |
| 84 /* Check for some of the X symbols */ | |
| 85 if (EQ (value, QSTRING)) return 1; | |
| 86 if (EQ (value, QTEXT)) return 1; | |
| 87 if (EQ (value, QCOMPOUND_TEXT)) return 1; | |
| 88 | |
| 89 return 0; | |
| 90 } | |
| 91 | |
| 92 /* This converts a Lisp symbol to an MS-Windows clipboard format. | |
| 93 We have symbols for all predefined clipboard formats, but that | |
| 94 doesn't mean we support them all ;-) | |
| 95 The name of this function is actually a lie - it also knows about | |
| 96 integers and strings... */ | |
| 97 static UINT | |
| 98 symbol_to_ms_cf (Lisp_Object value) | |
| 428 | 99 { |
| 442 | 100 /* If it's NIL, we're in trouble. */ |
| 101 if (NILP (value)) return 0; | |
| 102 | |
| 103 /* If it's an integer, assume it's a format ID */ | |
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104 if (FIXNUMP (value)) return (UINT) (XFIXNUM (value)); |
| 442 | 105 |
| 106 /* If it's a string, register the format(!) */ | |
| 107 if (STRINGP (value)) | |
| 771 | 108 { |
| 109 Extbyte *valext; | |
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110 valext = LISP_STRING_TO_TSTR (value); |
| 771 | 111 return qxeRegisterClipboardFormat (valext); |
| 112 } | |
| 442 | 113 |
| 114 /* Check for Windows clipboard format symbols */ | |
| 115 if (EQ (value, QCF_TEXT)) return CF_TEXT; | |
| 116 if (EQ (value, QCF_BITMAP)) return CF_BITMAP; | |
| 117 if (EQ (value, QCF_METAFILEPICT)) return CF_METAFILEPICT; | |
| 118 if (EQ (value, QCF_SYLK)) return CF_SYLK; | |
| 119 if (EQ (value, QCF_DIF)) return CF_DIF; | |
| 120 if (EQ (value, QCF_TIFF)) return CF_TIFF; | |
| 121 if (EQ (value, QCF_OEMTEXT)) return CF_OEMTEXT; | |
| 122 if (EQ (value, QCF_DIB)) return CF_DIB; | |
| 123 #ifdef CF_DIBV5 | |
| 124 if (EQ (value, QCF_DIBV5)) return CF_DIBV5; | |
| 125 #endif | |
| 126 if (EQ (value, QCF_PALETTE)) return CF_PALETTE; | |
| 127 if (EQ (value, QCF_PENDATA)) return CF_PENDATA; | |
| 128 if (EQ (value, QCF_RIFF)) return CF_RIFF; | |
| 129 if (EQ (value, QCF_WAVE)) return CF_WAVE; | |
| 130 if (EQ (value, QCF_UNICODETEXT)) return CF_UNICODETEXT; | |
| 131 if (EQ (value, QCF_ENHMETAFILE)) return CF_ENHMETAFILE; | |
| 132 if (EQ (value, QCF_HDROP)) return CF_HDROP; | |
| 133 if (EQ (value, QCF_LOCALE)) return CF_LOCALE; | |
| 134 if (EQ (value, QCF_OWNERDISPLAY)) return CF_OWNERDISPLAY; | |
| 135 if (EQ (value, QCF_DSPTEXT)) return CF_DSPTEXT; | |
| 136 if (EQ (value, QCF_DSPBITMAP)) return CF_DSPBITMAP; | |
| 137 if (EQ (value, QCF_DSPMETAFILEPICT)) return CF_DSPMETAFILEPICT; | |
| 138 if (EQ (value, QCF_DSPENHMETAFILE)) return CF_DSPENHMETAFILE; | |
| 139 | |
| 140 return 0; | |
| 141 } | |
| 142 | |
| 143 /* This converts an MS-Windows clipboard format to its corresponding | |
| 144 Lisp symbol, or a Lisp integer otherwise. */ | |
| 145 static Lisp_Object | |
| 146 ms_cf_to_symbol (UINT format) | |
| 147 { | |
| 148 switch (format) | |
| 149 { | |
| 150 case CF_TEXT: return QCF_TEXT; | |
| 151 case CF_BITMAP: return QCF_BITMAP; | |
| 152 case CF_METAFILEPICT: return QCF_METAFILEPICT; | |
| 153 case CF_SYLK: return QCF_SYLK; | |
| 154 case CF_DIF: return QCF_DIF; | |
| 155 case CF_TIFF: return QCF_TIFF; | |
| 156 case CF_OEMTEXT: return QCF_OEMTEXT; | |
| 157 case CF_DIB: return QCF_DIB; | |
| 158 #ifdef CF_DIBV5 | |
| 159 case CF_DIBV5: return QCF_DIBV5; | |
| 160 #endif | |
| 161 case CF_PALETTE: return QCF_PALETTE; | |
| 162 case CF_PENDATA: return QCF_PENDATA; | |
| 163 case CF_RIFF: return QCF_RIFF; | |
| 164 case CF_WAVE: return QCF_WAVE; | |
| 165 case CF_UNICODETEXT: return QCF_UNICODETEXT; | |
| 166 case CF_ENHMETAFILE: return QCF_ENHMETAFILE; | |
| 167 case CF_HDROP: return QCF_HDROP; | |
| 168 case CF_LOCALE: return QCF_LOCALE; | |
| 169 case CF_OWNERDISPLAY: return QCF_OWNERDISPLAY; | |
| 170 case CF_DSPTEXT: return QCF_DSPTEXT; | |
| 171 case CF_DSPBITMAP: return QCF_DSPBITMAP; | |
| 172 case CF_DSPMETAFILEPICT: return QCF_DSPMETAFILEPICT; | |
| 173 case CF_DSPENHMETAFILE: return QCF_DSPENHMETAFILE; | |
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174 default: return make_fixnum ((int) format); |
| 442 | 175 } |
| 176 } | |
| 428 | 177 |
| 442 | 178 /* Test if the specified clipboard format is auto-released by the OS. If |
| 179 not, we must remember the handle on Vhandle_alist, and free it if | |
| 180 the clipboard is emptied or if we set data with the same format. */ | |
| 181 static int | |
| 182 cf_is_autofreed (UINT format) | |
| 183 { | |
| 184 switch (format) | |
| 185 { | |
| 186 /* This list comes from the SDK documentation */ | |
| 187 case CF_DSPENHMETAFILE: | |
| 188 case CF_DSPMETAFILEPICT: | |
| 189 case CF_ENHMETAFILE: | |
| 190 case CF_METAFILEPICT: | |
| 191 case CF_BITMAP: | |
| 192 case CF_DSPBITMAP: | |
| 193 case CF_PALETTE: | |
| 194 case CF_DIB: | |
| 195 #ifdef CF_DIBV5 | |
| 196 case CF_DIBV5: | |
| 197 #endif | |
| 198 case CF_DSPTEXT: | |
| 199 case CF_OEMTEXT: | |
| 200 case CF_TEXT: | |
| 201 case CF_UNICODETEXT: | |
| 202 return TRUE; | |
| 203 | |
| 204 default: | |
| 205 return FALSE; | |
| 206 } | |
| 207 } | |
| 208 | |
| 209 /* Do protocol to assert ourself as a selection owner. | |
| 210 | |
| 211 Under mswindows, we: | |
| 212 | |
| 213 * Only set the clipboard if (eq selection-name 'CLIPBOARD) | |
| 214 | |
| 215 * Check if an X atom name has been passed. If so, convert to CF_TEXT | |
| 216 (or CF_UNICODETEXT) remembering to perform LF -> CR-LF conversion. | |
| 217 | |
| 218 * Otherwise assume the data is formatted appropriately for the data type | |
| 219 that was passed. | |
| 220 | |
| 221 Then set the clipboard as necessary. | |
| 222 */ | |
| 223 static Lisp_Object | |
| 224 mswindows_own_selection (Lisp_Object selection_name, | |
| 225 Lisp_Object selection_value, | |
| 226 Lisp_Object how_to_add, | |
| 456 | 227 Lisp_Object selection_type, |
| 2286 | 228 int UNUSED (owned_p)) |
| 442 | 229 { |
| 230 HGLOBAL hValue = NULL; | |
| 231 UINT cfType; | |
| 232 int is_X_type = FALSE; | |
| 233 Lisp_Object cfObject; | |
| 234 Lisp_Object data = Qnil; | |
| 235 int size; | |
| 236 void *src, *dst; | |
| 237 struct frame *f = NULL; | |
| 428 | 238 |
| 442 | 239 /* Only continue if we're trying to set the clipboard - mswindows doesn't |
| 240 use the same selection model as X */ | |
| 241 if (!EQ (selection_name, QCLIPBOARD)) | |
| 242 return Qnil; | |
| 243 | |
| 244 /* If this is one of the X-style atom name symbols, or NIL, convert it | |
| 245 as appropriate */ | |
| 246 if (NILP (selection_type) || x_sym_p (selection_type)) | |
| 247 { | |
| 248 /* Should COMPOUND_TEXT map to CF_UNICODETEXT? */ | |
| 771 | 249 if (XEUNICODE_P) |
| 250 { | |
| 251 cfType = CF_UNICODETEXT; | |
| 252 cfObject = QCF_UNICODETEXT; | |
| 253 } | |
| 254 else | |
| 255 { | |
| 256 cfType = CF_TEXT; | |
| 257 cfObject = QCF_TEXT; | |
| 258 } | |
| 442 | 259 is_X_type = TRUE; |
| 260 } | |
| 261 else | |
| 262 { | |
| 263 cfType = symbol_to_ms_cf (selection_type); | |
| 264 | |
| 265 /* Only continue if we can figure out a clipboard type */ | |
| 266 if (!cfType) | |
| 267 return Qnil; | |
| 268 | |
| 269 cfObject = selection_type; | |
| 270 } | |
| 271 | |
| 272 /* Convert things appropriately */ | |
| 273 data = select_convert_out (selection_name, | |
| 274 cfObject, | |
| 275 selection_value); | |
| 428 | 276 |
| 442 | 277 if (NILP (data)) |
| 278 return Qnil; | |
| 279 | |
| 280 if (CONSP (data)) | |
| 281 { | |
| 282 if (!EQ (XCAR (data), cfObject)) | |
| 283 cfType = symbol_to_ms_cf (XCAR (data)); | |
| 284 | |
| 285 if (!cfType) | |
| 286 return Qnil; | |
| 287 | |
| 288 data = XCDR (data); | |
| 289 } | |
| 290 | |
| 291 /* We support opaque or string values, but we only mention string | |
| 771 | 292 values for now... |
| 293 #### where do the opaque objects come from? currently they're not | |
| 294 allowed to be exported to the lisp level! */ | |
| 442 | 295 if (!OPAQUEP (data) |
| 296 && !STRINGP (data)) | |
| 297 return Qnil; | |
| 298 | |
| 299 /* Find the frame */ | |
| 430 | 300 f = selected_frame (); |
| 442 | 301 |
| 302 /* Open the clipboard */ | |
| 430 | 303 if (!OpenClipboard (FRAME_MSWINDOWS_HANDLE (f))) |
| 428 | 304 return Qnil; |
| 305 | |
| 771 | 306 /* Obtain the data */ |
| 307 if (OPAQUEP (data)) | |
| 308 { | |
| 309 src = XOPAQUE_DATA (data); | |
| 310 size = XOPAQUE_SIZE (data); | |
| 311 } | |
| 312 else | |
| 313 /* we do NOT append a zero byte. we don't know whether we're dealing | |
| 314 with regular text, unicode text, binary data, etc. */ | |
| 851 | 315 TO_EXTERNAL_FORMAT (LISP_STRING, data, MALLOC, (src, size), |
| 771 | 316 Qbinary); |
| 317 | |
| 442 | 318 /* Allocate memory */ |
| 319 hValue = GlobalAlloc (GMEM_DDESHARE | GMEM_MOVEABLE, size); | |
| 320 | |
| 321 if (!hValue) | |
| 428 | 322 { |
| 323 CloseClipboard (); | |
| 442 | 324 |
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325 xfree (src); |
| 442 | 326 return Qnil; |
| 327 } | |
| 328 | |
| 329 dst = GlobalLock (hValue); | |
| 330 | |
| 331 if (!dst) | |
| 332 { | |
| 333 GlobalFree (hValue); | |
| 334 CloseClipboard (); | |
| 335 | |
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336 xfree (src); |
| 428 | 337 return Qnil; |
| 338 } | |
| 442 | 339 |
| 340 memcpy (dst, src, size); | |
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341 xfree (src); |
| 442 | 342 |
| 343 GlobalUnlock (hValue); | |
| 344 | |
| 345 /* Empty the clipboard if we're replacing everything */ | |
| 346 if (NILP (how_to_add) || EQ (how_to_add, Qreplace_all)) | |
| 428 | 347 { |
| 771 | 348 if (!mswindows_empty_clipboard ()) |
| 428 | 349 { |
| 442 | 350 CloseClipboard (); |
| 351 GlobalFree (hValue); | |
| 352 | |
| 353 return Qnil; | |
| 354 } | |
| 428 | 355 } |
| 442 | 356 |
| 357 /* Append is currently handled in select.el; perhaps this should change, | |
| 358 but it only really makes sense for ordinary text in any case... */ | |
| 359 | |
| 360 SetClipboardData (cfType, hValue); | |
| 361 | |
| 362 if (!cf_is_autofreed (cfType)) | |
| 363 { | |
| 364 Lisp_Object alist_elt = Qnil, rest; | |
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365 Lisp_Object cfType_int = make_fixnum (cfType); |
| 442 | 366 |
| 367 /* First check if there's an element in the alist for this type | |
| 368 already. */ | |
| 369 alist_elt = assq_no_quit (cfType_int, Vhandle_alist); | |
| 370 | |
| 371 /* Add an element to the alist */ | |
| 372 Vhandle_alist = Fcons (Fcons (cfType_int, make_opaque_ptr (hValue)), | |
| 373 Vhandle_alist); | |
| 374 | |
| 375 if (!NILP (alist_elt)) | |
| 376 { | |
| 377 /* Free the original handle */ | |
| 378 GlobalFree ((HGLOBAL) get_opaque_ptr (XCDR (alist_elt))); | |
| 379 | |
| 771 | 380 /* Remove the original one (adding first makes life easier, |
| 381 because we don't have to special case this being the | |
| 382 first element) */ | |
| 442 | 383 for (rest = Vhandle_alist; !NILP (rest); rest = Fcdr (rest)) |
| 384 if (EQ (cfType_int, Fcar (XCDR (rest)))) | |
| 385 { | |
| 386 XCDR (rest) = Fcdr (XCDR (rest)); | |
| 387 break; | |
| 388 } | |
| 389 } | |
| 390 } | |
| 391 | |
| 428 | 392 CloseClipboard (); |
| 442 | 393 |
| 394 /* #### Should really return a time, though this is because of the | |
| 395 X model (by the looks of things) */ | |
| 396 return Qnil; | |
| 428 | 397 } |
| 398 | |
| 399 static Lisp_Object | |
| 442 | 400 mswindows_available_selection_types (Lisp_Object selection_name) |
| 401 { | |
| 402 Lisp_Object types = Qnil; | |
| 403 UINT format = 0; | |
| 404 struct frame *f = NULL; | |
| 405 | |
| 406 if (!EQ (selection_name, QCLIPBOARD)) | |
| 407 return Qnil; | |
| 408 | |
| 409 /* Find the frame */ | |
| 410 f = selected_frame (); | |
| 411 | |
| 412 /* Open the clipboard */ | |
| 413 if (!OpenClipboard (FRAME_MSWINDOWS_HANDLE (f))) | |
| 414 return Qnil; | |
| 415 | |
| 771 | 416 /* [[ ajh - Should there be an unwind-protect handler around this? |
| 417 It could (well it probably won't, but it's always better to | |
| 418 be safe) run out of memory and leave the clipboard open... ]] | |
| 419 -- xemacs in general makes no provisions for out-of-memory errors; | |
| 420 we will probably just crash. fixing this is a huge amount of work, | |
| 421 so don't bother protecting in this case. --ben */ | |
| 442 | 422 |
| 423 while ((format = EnumClipboardFormats (format))) | |
| 424 types = Fcons (ms_cf_to_symbol (format), types); | |
| 425 | |
| 426 /* Close it */ | |
| 427 CloseClipboard (); | |
| 428 | |
| 429 return types; | |
| 430 } | |
| 431 | |
| 432 static Lisp_Object | |
| 433 mswindows_register_selection_data_type (Lisp_Object type_name) | |
| 428 | 434 { |
| 442 | 435 /* Type already checked in select.c */ |
| 771 | 436 Extbyte *nameext; |
| 437 UINT format; | |
| 442 | 438 |
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439 nameext = LISP_STRING_TO_TSTR (type_name); |
| 771 | 440 format = qxeRegisterClipboardFormat (nameext); |
| 442 | 441 |
| 442 if (format) | |
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443 return make_fixnum ((int) format); |
| 442 | 444 else |
| 445 return Qnil; | |
| 446 } | |
| 447 | |
| 448 static Lisp_Object | |
| 449 mswindows_selection_data_type_name (Lisp_Object type_id) | |
| 450 { | |
| 771 | 451 UINT format; |
| 452 Extbyte *namebuf; | |
| 453 int numchars; | |
| 442 | 454 |
| 455 /* If it's an integer, convert to a symbol if appropriate */ | |
|
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changeset
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456 if (FIXNUMP (type_id)) |
|
56144c8593a8
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Aidan Kehoe <kehoea@parhasard.net>
parents:
5402
diff
changeset
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457 type_id = ms_cf_to_symbol (XFIXNUM (type_id)); |
| 442 | 458 |
| 459 /* If this is a symbol, return it */ | |
| 460 if (SYMBOLP (type_id)) | |
| 461 return type_id; | |
| 462 | |
| 463 /* Find the format code */ | |
| 464 format = symbol_to_ms_cf (type_id); | |
| 465 | |
| 466 if (!format) | |
| 467 return Qnil; | |
| 468 | |
| 469 /* Microsoft, stupid Microsoft */ | |
| 771 | 470 { |
| 800 | 471 int size = 64; |
| 771 | 472 do |
| 473 { | |
| 800 | 474 size *= 2; |
| 771 | 475 namebuf = alloca_extbytes (size * XETCHAR_SIZE); |
| 476 numchars = qxeGetClipboardFormatName (format, namebuf, size); | |
| 477 } | |
| 478 while (numchars >= size - 1); | |
| 479 } | |
| 442 | 480 |
| 481 if (numchars) | |
| 771 | 482 return build_tstr_string (namebuf); |
| 428 | 483 |
| 484 return Qnil; | |
| 485 } | |
| 486 | |
| 442 | 487 static Lisp_Object |
| 488 mswindows_get_foreign_selection (Lisp_Object selection_symbol, | |
| 489 Lisp_Object target_type) | |
| 428 | 490 { |
| 442 | 491 HGLOBAL hValue = NULL; |
| 492 UINT cfType; | |
| 493 Lisp_Object cfObject = Qnil, ret = Qnil, value = Qnil; | |
| 494 int is_X_type = FALSE; | |
| 495 int size; | |
| 496 void *data; | |
| 497 struct frame *f = NULL; | |
| 498 struct gcpro gcpro1; | |
| 499 | |
| 500 /* Only continue if we're trying to read the clipboard - mswindows doesn't | |
| 501 use the same selection model as X */ | |
| 502 if (!EQ (selection_symbol, QCLIPBOARD)) | |
| 503 return Qnil; | |
| 428 | 504 |
| 442 | 505 /* If this is one of the X-style atom name symbols, or NIL, convert it |
| 506 as appropriate */ | |
| 507 if (NILP (target_type) || x_sym_p (target_type)) | |
| 508 { | |
| 509 /* Should COMPOUND_TEXT map to CF_UNICODETEXT? */ | |
| 771 | 510 if (XEUNICODE_P) |
| 511 { | |
| 512 cfType = CF_UNICODETEXT; | |
| 513 cfObject = QCF_UNICODETEXT; | |
| 514 } | |
| 515 else | |
| 516 { | |
| 517 cfType = CF_TEXT; | |
| 518 cfObject = QCF_TEXT; | |
| 519 } | |
| 442 | 520 is_X_type = TRUE; |
| 521 } | |
| 522 else | |
| 523 { | |
| 524 cfType = symbol_to_ms_cf (target_type); | |
| 525 | |
| 526 /* Only continue if we can figure out a clipboard type */ | |
| 527 if (!cfType) | |
| 528 return Qnil; | |
| 529 | |
| 530 cfObject = ms_cf_to_symbol (cfType); | |
| 531 } | |
| 532 | |
| 533 /* Find the frame */ | |
| 534 f = selected_frame (); | |
| 535 | |
| 536 /* Open the clipboard */ | |
| 537 if (!OpenClipboard (FRAME_MSWINDOWS_HANDLE (f))) | |
| 428 | 538 return Qnil; |
| 539 | |
| 442 | 540 /* Read the clipboard */ |
| 541 hValue = GetClipboardData (cfType); | |
| 542 | |
| 543 if (!hValue) | |
| 428 | 544 { |
| 442 | 545 CloseClipboard (); |
| 428 | 546 |
| 442 | 547 return Qnil; |
| 548 } | |
| 428 | 549 |
| 442 | 550 /* Find the data */ |
| 551 size = GlobalSize (hValue); | |
| 552 data = GlobalLock (hValue); | |
| 428 | 553 |
| 442 | 554 if (!data) |
| 555 { | |
| 556 CloseClipboard (); | |
| 557 | |
| 558 return Qnil; | |
| 428 | 559 } |
| 560 | |
| 442 | 561 /* Place it in a Lisp string */ |
|
4953
304aebb79cd3
function renamings to track names of char typedefs
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parents:
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diff
changeset
|
562 ret = make_extstring ((Extbyte *) data, size, Qbinary); |
| 442 | 563 |
| 564 GlobalUnlock (data); | |
| 428 | 565 CloseClipboard (); |
| 566 | |
| 442 | 567 GCPRO1 (ret); |
| 428 | 568 |
| 442 | 569 /* Convert this to the appropriate type. If we can't find anything, |
| 570 then we return a cons of the form (DATA-TYPE . STRING), where the | |
| 571 string contains the raw binary data. */ | |
| 572 value = select_convert_in (selection_symbol, | |
| 573 cfObject, | |
| 574 ret); | |
| 428 | 575 |
| 442 | 576 UNGCPRO; |
| 430 | 577 |
| 442 | 578 if (NILP (value)) |
| 579 return Fcons (cfObject, ret); | |
| 580 else | |
| 581 return value; | |
| 428 | 582 } |
| 583 | |
| 584 static void | |
| 2286 | 585 mswindows_disown_selection (Lisp_Object selection, |
| 586 Lisp_Object UNUSED (timeval)) | |
| 428 | 587 { |
| 588 if (EQ (selection, QCLIPBOARD)) | |
| 442 | 589 { |
| 590 BOOL success = OpenClipboard (NULL); | |
| 591 if (success) | |
| 592 { | |
| 771 | 593 /* the caller calls handle_selection_clear(). */ |
| 594 success = mswindows_empty_clipboard (); | |
| 442 | 595 /* Close it regardless of whether empty worked. */ |
| 596 if (!CloseClipboard ()) | |
| 597 success = FALSE; | |
| 598 } | |
| 599 | |
| 600 /* #### return success ? Qt : Qnil; */ | |
| 601 } | |
| 602 } | |
| 603 | |
| 604 void | |
| 605 mswindows_destroy_selection (Lisp_Object selection) | |
| 606 { | |
| 607 /* Do nothing if this isn't for the clipboard. */ | |
| 608 if (!EQ (selection, QCLIPBOARD)) | |
| 609 return; | |
| 610 | |
| 611 /* Right. We need to delete everything in Vhandle_alist. */ | |
| 612 { | |
| 613 LIST_LOOP_2 (elt, Vhandle_alist) | |
| 614 GlobalFree ((HGLOBAL) get_opaque_ptr (XCDR (elt))); | |
| 615 } | |
| 616 | |
| 617 Vhandle_alist = Qnil; | |
| 618 } | |
| 619 | |
| 620 static Lisp_Object | |
| 621 mswindows_selection_exists_p (Lisp_Object selection, | |
| 622 Lisp_Object selection_type) | |
| 623 { | |
| 624 /* We used to be picky about the format, but now we support anything. */ | |
| 625 if (EQ (selection, QCLIPBOARD)) | |
| 626 { | |
| 627 if (NILP (selection_type)) | |
| 628 return CountClipboardFormats () ? Qt : Qnil; | |
| 629 else | |
| 630 return IsClipboardFormatAvailable (symbol_to_ms_cf (selection_type)) | |
| 631 ? Qt : Qnil; | |
| 632 } | |
| 633 else | |
| 634 return Qnil; | |
| 428 | 635 } |
| 636 | |
| 637 | |
| 638 /************************************************************************/ | |
| 639 /* initialization */ | |
| 640 /************************************************************************/ | |
| 641 | |
| 642 void | |
| 643 console_type_create_select_mswindows (void) | |
| 644 { | |
| 645 CONSOLE_HAS_METHOD (mswindows, own_selection); | |
| 646 CONSOLE_HAS_METHOD (mswindows, disown_selection); | |
| 442 | 647 CONSOLE_HAS_METHOD (mswindows, selection_exists_p); |
| 428 | 648 CONSOLE_HAS_METHOD (mswindows, get_foreign_selection); |
| 442 | 649 CONSOLE_HAS_METHOD (mswindows, available_selection_types); |
| 650 CONSOLE_HAS_METHOD (mswindows, register_selection_data_type); | |
| 651 CONSOLE_HAS_METHOD (mswindows, selection_data_type_name); | |
| 428 | 652 } |
| 653 | |
| 654 void | |
| 655 syms_of_select_mswindows (void) | |
| 656 { | |
| 657 } | |
| 658 | |
| 659 void | |
| 660 vars_of_select_mswindows (void) | |
| 661 { | |
| 442 | 662 /* Initialise Vhandle_alist */ |
| 663 Vhandle_alist = Qnil; | |
| 664 staticpro (&Vhandle_alist); | |
| 428 | 665 } |
| 771 | 666 |
| 667 void | |
| 668 init_select_mswindows (void) | |
| 669 { | |
| 670 /* Reinitialise Vhandle_alist */ | |
| 671 /* #### Why do we need to do this? Somehow I added this. --ben */ | |
| 672 Vhandle_alist = Qnil; | |
| 673 } |