| 1 | /* Selection processing for Emacs on the Microsoft W32 API. |
| 2 | |
| 3 | Copyright (C) 1993, 1994, 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
| 4 | 2008, 2009, 2010, 2011 Free Software Foundation, Inc. |
| 5 | |
| 6 | This file is part of GNU Emacs. |
| 7 | |
| 8 | GNU Emacs is free software: you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation, either version 3 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | GNU Emacs is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 20 | |
| 21 | /* Written by Kevin Gallo, Benjamin Riefenstahl */ |
| 22 | |
| 23 | |
| 24 | /* |
| 25 | * Notes on usage of selection-coding-system and |
| 26 | * next-selection-coding-system on MS Windows: |
| 27 | * |
| 28 | * The selection coding system variables apply only to the version of |
| 29 | * the clipboard data that is closest in type, i.e. when a 16-bit |
| 30 | * Unicode coding system is given, they apply to he Unicode clipboard |
| 31 | * (CF_UNICODETEXT), when a well-known console codepage is given, they |
| 32 | * apply to the console version of the clipboard data (CF_OEMTEXT), |
| 33 | * else they apply to the normal 8-bit text clipboard (CF_TEXT). |
| 34 | * |
| 35 | * When pasting (getting data from the OS), the clipboard format that |
| 36 | * matches the {next-}selection-coding-system is retrieved. If |
| 37 | * Unicode is requested, but not available, 8-bit text (CF_TEXT) is |
| 38 | * used. In all other cases the OS will transparently convert |
| 39 | * formats, so no other fallback is needed. |
| 40 | * |
| 41 | * When copying or cutting (sending data to the OS), the data is |
| 42 | * announced and stored internally, but only actually rendered on |
| 43 | * request. The requester determines the format provided. The |
| 44 | * {next-}selection-coding-system is only used, when its corresponding |
| 45 | * clipboard type matches the type requested. |
| 46 | * |
| 47 | * Scenarios to use the facilities for customizing the selection |
| 48 | * coding system are: |
| 49 | * |
| 50 | * ;; Generally use KOI8-R instead of the russian MS codepage for |
| 51 | * ;; the 8-bit clipboard. |
| 52 | * (set-selection-coding-system 'koi8-r-dos) |
| 53 | * |
| 54 | * Or |
| 55 | * |
| 56 | * ;; Create a special clipboard copy function that uses codepage |
| 57 | * ;; 1253 (Greek) to copy Greek text to a specific non-Unicode |
| 58 | * ;; application. |
| 59 | * (defun greek-copy (beg end) |
| 60 | * (interactive "r") |
| 61 | * (set-next-selection-coding-system 'cp1253-dos) |
| 62 | * (copy-region-as-kill beg end)) |
| 63 | * (global-set-key "\C-c\C-c" 'greek-copy) |
| 64 | */ |
| 65 | |
| 66 | /* |
| 67 | * Ideas for further directions: |
| 68 | * |
| 69 | * The encoding and decoding routines could be moved to Lisp code |
| 70 | * similar to how xselect.c does it (using well-known routine names |
| 71 | * for the delayed rendering). If the definition of which clipboard |
| 72 | * types should be supported is also moved to Lisp, functionality |
| 73 | * could be expanded to CF_HTML, CF_RTF and maybe other types. |
| 74 | */ |
| 75 | |
| 76 | #include <config.h> |
| 77 | #include <setjmp.h> |
| 78 | #include "lisp.h" |
| 79 | #include "w32term.h" /* for all of the w32 includes */ |
| 80 | #include "w32heap.h" /* os_subtype */ |
| 81 | #include "blockinput.h" |
| 82 | #include "keyboard.h" /* cmd_error_internal() */ |
| 83 | #include "charset.h" |
| 84 | #include "coding.h" |
| 85 | #include "character.h" |
| 86 | #include "composite.h" |
| 87 | |
| 88 | |
| 89 | static HGLOBAL convert_to_handle_as_ascii (void); |
| 90 | static HGLOBAL convert_to_handle_as_coded (Lisp_Object coding_system); |
| 91 | static Lisp_Object render (Lisp_Object oformat); |
| 92 | static Lisp_Object render_locale (void); |
| 93 | static Lisp_Object render_all (Lisp_Object ignore); |
| 94 | static void run_protected (Lisp_Object (*code) (Lisp_Object), Lisp_Object arg); |
| 95 | static Lisp_Object lisp_error_handler (Lisp_Object error); |
| 96 | static LRESULT CALLBACK owner_callback (HWND win, UINT msg, |
| 97 | WPARAM wp, LPARAM lp); |
| 98 | static HWND create_owner (void); |
| 99 | |
| 100 | static void setup_config (void); |
| 101 | static BOOL WINAPI enum_locale_callback (/*const*/ char* loc_string); |
| 102 | static UINT cp_from_locale (LCID lcid, UINT format); |
| 103 | static Lisp_Object coding_from_cp (UINT codepage); |
| 104 | static Lisp_Object validate_coding_system (Lisp_Object coding_system); |
| 105 | static void setup_windows_coding_system (Lisp_Object coding_system, |
| 106 | struct coding_system * coding); |
| 107 | |
| 108 | |
| 109 | /* A remnant from X11: Symbol for the CLIPBORD selection type. Other |
| 110 | selections are not used on Windows, so we don't need symbols for |
| 111 | PRIMARY and SECONDARY. */ |
| 112 | Lisp_Object QCLIPBOARD; |
| 113 | |
| 114 | /* Coding system for communicating with other programs via the |
| 115 | clipboard. */ |
| 116 | static Lisp_Object Vselection_coding_system; |
| 117 | |
| 118 | /* Coding system for the next communication with other programs. */ |
| 119 | static Lisp_Object Vnext_selection_coding_system; |
| 120 | |
| 121 | /* Internal pseudo-constants, initialized in globals_of_w32select() |
| 122 | based on current system parameters. */ |
| 123 | static LCID DEFAULT_LCID; |
| 124 | static UINT ANSICP, OEMCP; |
| 125 | static Lisp_Object QUNICODE, QANSICP, QOEMCP; |
| 126 | |
| 127 | /* A hidden window just for the clipboard management. */ |
| 128 | static HWND clipboard_owner; |
| 129 | /* A flag to tell WM_DESTROYCLIPBOARD who is to blame this time (just |
| 130 | checking GetClipboardOwner() doesn't work, sadly). */ |
| 131 | static int modifying_clipboard = 0; |
| 132 | |
| 133 | /* Configured transfer parameters, based on the last inspection of |
| 134 | selection-coding-system. */ |
| 135 | static Lisp_Object cfg_coding_system; |
| 136 | static UINT cfg_codepage; |
| 137 | static LCID cfg_lcid; |
| 138 | static UINT cfg_clipboard_type; |
| 139 | |
| 140 | /* The current state for delayed rendering. */ |
| 141 | static Lisp_Object current_text; |
| 142 | static Lisp_Object current_coding_system; |
| 143 | static int current_requires_encoding, current_num_nls; |
| 144 | static UINT current_clipboard_type; |
| 145 | static LCID current_lcid; |
| 146 | |
| 147 | #if TRACE |
| 148 | #define ONTRACE(stmt) stmt |
| 149 | #else |
| 150 | #define ONTRACE(stmt) /*stmt*/ |
| 151 | #endif |
| 152 | |
| 153 | |
| 154 | /* This function assumes that there is no multibyte character in |
| 155 | current_text, so we can short-cut encoding. */ |
| 156 | |
| 157 | static HGLOBAL |
| 158 | convert_to_handle_as_ascii (void) |
| 159 | { |
| 160 | HGLOBAL htext = NULL; |
| 161 | int nbytes; |
| 162 | int truelen; |
| 163 | unsigned char *src; |
| 164 | unsigned char *dst; |
| 165 | |
| 166 | ONTRACE (fprintf (stderr, "convert_to_handle_as_ascii\n")); |
| 167 | |
| 168 | nbytes = SBYTES (current_text) + 1; |
| 169 | src = SDATA (current_text); |
| 170 | |
| 171 | /* We need to add to the size the number of LF chars where we have |
| 172 | to insert CR chars (the standard CF_TEXT clipboard format uses |
| 173 | CRLF line endings, while Emacs uses just LF internally). */ |
| 174 | |
| 175 | truelen = nbytes + current_num_nls; |
| 176 | |
| 177 | if ((htext = GlobalAlloc (GMEM_MOVEABLE | GMEM_DDESHARE, truelen)) == NULL) |
| 178 | return NULL; |
| 179 | |
| 180 | if ((dst = (unsigned char *) GlobalLock (htext)) == NULL) |
| 181 | { |
| 182 | GlobalFree (htext); |
| 183 | return NULL; |
| 184 | } |
| 185 | |
| 186 | /* convert to CRLF line endings expected by clipboard */ |
| 187 | while (1) |
| 188 | { |
| 189 | unsigned char *next; |
| 190 | /* copy next line or remaining bytes including '\0' */ |
| 191 | next = _memccpy (dst, src, '\n', nbytes); |
| 192 | if (next) |
| 193 | { |
| 194 | /* copied one line ending with '\n' */ |
| 195 | int copied = next - dst; |
| 196 | nbytes -= copied; |
| 197 | src += copied; |
| 198 | /* insert '\r' before '\n' */ |
| 199 | next[-1] = '\r'; |
| 200 | next[0] = '\n'; |
| 201 | dst = next + 1; |
| 202 | } |
| 203 | else |
| 204 | /* copied remaining partial line -> now finished */ |
| 205 | break; |
| 206 | } |
| 207 | |
| 208 | GlobalUnlock (htext); |
| 209 | |
| 210 | return htext; |
| 211 | } |
| 212 | |
| 213 | /* This function assumes that there are multibyte or NUL characters in |
| 214 | current_text, or that we need to construct Unicode. It runs the |
| 215 | text through the encoding machinery. */ |
| 216 | |
| 217 | static HGLOBAL |
| 218 | convert_to_handle_as_coded (Lisp_Object coding_system) |
| 219 | { |
| 220 | HGLOBAL htext; |
| 221 | unsigned char *dst = NULL; |
| 222 | struct coding_system coding; |
| 223 | |
| 224 | ONTRACE (fprintf (stderr, "convert_to_handle_as_coded: %s\n", |
| 225 | SDATA (SYMBOL_NAME (coding_system)))); |
| 226 | |
| 227 | setup_windows_coding_system (coding_system, &coding); |
| 228 | coding.dst_bytes = SBYTES (current_text) * 2; |
| 229 | coding.destination = (unsigned char *) xmalloc (coding.dst_bytes); |
| 230 | encode_coding_object (&coding, current_text, 0, 0, |
| 231 | SCHARS (current_text), SBYTES (current_text), Qnil); |
| 232 | |
| 233 | htext = GlobalAlloc (GMEM_MOVEABLE | GMEM_DDESHARE, coding.produced +2); |
| 234 | |
| 235 | if (htext != NULL) |
| 236 | dst = (unsigned char *) GlobalLock (htext); |
| 237 | |
| 238 | if (dst != NULL) |
| 239 | { |
| 240 | memcpy (dst, coding.destination, coding.produced); |
| 241 | /* Add the string terminator. Add two NULs in case we are |
| 242 | producing Unicode here. */ |
| 243 | dst[coding.produced] = dst[coding.produced+1] = '\0'; |
| 244 | |
| 245 | GlobalUnlock (htext); |
| 246 | } |
| 247 | |
| 248 | xfree (coding.destination); |
| 249 | |
| 250 | return htext; |
| 251 | } |
| 252 | |
| 253 | static Lisp_Object |
| 254 | render (Lisp_Object oformat) |
| 255 | { |
| 256 | HGLOBAL htext = NULL; |
| 257 | UINT format = XFASTINT (oformat); |
| 258 | |
| 259 | ONTRACE (fprintf (stderr, "render\n")); |
| 260 | |
| 261 | if (NILP (current_text)) |
| 262 | return Qnil; |
| 263 | |
| 264 | if (current_requires_encoding || format == CF_UNICODETEXT) |
| 265 | { |
| 266 | if (format == current_clipboard_type) |
| 267 | htext = convert_to_handle_as_coded (current_coding_system); |
| 268 | else |
| 269 | switch (format) |
| 270 | { |
| 271 | case CF_UNICODETEXT: |
| 272 | htext = convert_to_handle_as_coded (QUNICODE); |
| 273 | break; |
| 274 | case CF_TEXT: |
| 275 | case CF_OEMTEXT: |
| 276 | { |
| 277 | Lisp_Object cs; |
| 278 | cs = coding_from_cp (cp_from_locale (current_lcid, format)); |
| 279 | htext = convert_to_handle_as_coded (cs); |
| 280 | break; |
| 281 | } |
| 282 | } |
| 283 | } |
| 284 | else |
| 285 | htext = convert_to_handle_as_ascii (); |
| 286 | |
| 287 | ONTRACE (fprintf (stderr, "render: htext = 0x%08X\n", (unsigned) htext)); |
| 288 | |
| 289 | if (htext == NULL) |
| 290 | return Qnil; |
| 291 | |
| 292 | if (SetClipboardData (format, htext) == NULL) |
| 293 | { |
| 294 | GlobalFree (htext); |
| 295 | return Qnil; |
| 296 | } |
| 297 | |
| 298 | return Qt; |
| 299 | } |
| 300 | |
| 301 | static Lisp_Object |
| 302 | render_locale (void) |
| 303 | { |
| 304 | HANDLE hlocale = NULL; |
| 305 | LCID * lcid_ptr; |
| 306 | |
| 307 | ONTRACE (fprintf (stderr, "render_locale\n")); |
| 308 | |
| 309 | if (current_lcid == LOCALE_NEUTRAL || current_lcid == DEFAULT_LCID) |
| 310 | return Qt; |
| 311 | |
| 312 | hlocale = GlobalAlloc (GMEM_MOVEABLE | GMEM_DDESHARE, sizeof (current_lcid)); |
| 313 | if (hlocale == NULL) |
| 314 | return Qnil; |
| 315 | |
| 316 | if ((lcid_ptr = (LCID *) GlobalLock (hlocale)) == NULL) |
| 317 | { |
| 318 | GlobalFree (hlocale); |
| 319 | return Qnil; |
| 320 | } |
| 321 | |
| 322 | *lcid_ptr = current_lcid; |
| 323 | GlobalUnlock (hlocale); |
| 324 | |
| 325 | if (SetClipboardData (CF_LOCALE, hlocale) == NULL) |
| 326 | { |
| 327 | GlobalFree (hlocale); |
| 328 | return Qnil; |
| 329 | } |
| 330 | |
| 331 | return Qt; |
| 332 | } |
| 333 | |
| 334 | /* At the end of the program, we want to ensure that our clipboard |
| 335 | data survives us. This code will do that. */ |
| 336 | |
| 337 | static Lisp_Object |
| 338 | render_all (Lisp_Object ignore) |
| 339 | { |
| 340 | ONTRACE (fprintf (stderr, "render_all\n")); |
| 341 | |
| 342 | /* According to the docs we should not call OpenClipboard() here, |
| 343 | but testing on W2K and working code in other projects shows that |
| 344 | it is actually necessary. */ |
| 345 | |
| 346 | OpenClipboard (NULL); |
| 347 | |
| 348 | /* There is no usefull means to report errors here, there are none |
| 349 | expected anyway, and even if there were errors, they wouldn't do |
| 350 | any harm. So we just go ahead and do what has to be done without |
| 351 | bothering with error handling. */ |
| 352 | |
| 353 | ++modifying_clipboard; |
| 354 | EmptyClipboard (); |
| 355 | --modifying_clipboard; |
| 356 | |
| 357 | /* For text formats that we don't render here, the OS can use its |
| 358 | own translation rules instead, so we don't really need to offer |
| 359 | everything. To minimize memory consumption we cover three |
| 360 | possible situations based on our primary format as detected from |
| 361 | selection-coding-system (see setup_config()): |
| 362 | |
| 363 | - Post CF_TEXT only. Let the OS convert to CF_OEMTEXT and the OS |
| 364 | (on NT) or the application (on 9x/Me) convert to |
| 365 | CF_UNICODETEXT. |
| 366 | |
| 367 | - Post CF_OEMTEXT only. Similar automatic conversions happen as |
| 368 | for CF_TEXT. |
| 369 | |
| 370 | - Post CF_UNICODETEXT + CF_TEXT. 9x itself ignores |
| 371 | CF_UNICODETEXT, even though some applications can still handle |
| 372 | it. |
| 373 | |
| 374 | Note 1: We render the less capable CF_TEXT *before* the more |
| 375 | capable CF_UNICODETEXT, to prevent clobbering through automatic |
| 376 | conversions, just in case. |
| 377 | |
| 378 | Note 2: We could check os_subtype here and only render the |
| 379 | additional CF_TEXT on 9x/Me. But OTOH with |
| 380 | current_clipboard_type == CF_UNICODETEXT we don't involve the |
| 381 | automatic conversions anywhere else, so to get consistent |
| 382 | results, we probably don't want to rely on it here either. */ |
| 383 | |
| 384 | render_locale (); |
| 385 | |
| 386 | if (current_clipboard_type == CF_UNICODETEXT) |
| 387 | render (make_number (CF_TEXT)); |
| 388 | render (make_number (current_clipboard_type)); |
| 389 | |
| 390 | CloseClipboard (); |
| 391 | |
| 392 | return Qnil; |
| 393 | } |
| 394 | |
| 395 | static void |
| 396 | run_protected (Lisp_Object (*code) (Lisp_Object), Lisp_Object arg) |
| 397 | { |
| 398 | /* FIXME: This works but it doesn't feel right. Too much fiddling |
| 399 | with global variables and calling strange looking functions. Is |
| 400 | this really the right way to run Lisp callbacks? */ |
| 401 | |
| 402 | int owfi; |
| 403 | |
| 404 | BLOCK_INPUT; |
| 405 | |
| 406 | /* Fsignal calls abort() if it sees that waiting_for_input is |
| 407 | set. */ |
| 408 | owfi = waiting_for_input; |
| 409 | waiting_for_input = 0; |
| 410 | |
| 411 | internal_condition_case_1 (code, arg, Qt, lisp_error_handler); |
| 412 | |
| 413 | waiting_for_input = owfi; |
| 414 | |
| 415 | UNBLOCK_INPUT; |
| 416 | } |
| 417 | |
| 418 | static Lisp_Object |
| 419 | lisp_error_handler (Lisp_Object error) |
| 420 | { |
| 421 | Vsignaling_function = Qnil; |
| 422 | cmd_error_internal (error, "Error in delayed clipboard rendering: "); |
| 423 | Vinhibit_quit = Qt; |
| 424 | return Qt; |
| 425 | } |
| 426 | |
| 427 | |
| 428 | static LRESULT CALLBACK |
| 429 | owner_callback (HWND win, UINT msg, WPARAM wp, LPARAM lp) |
| 430 | { |
| 431 | switch (msg) |
| 432 | { |
| 433 | case WM_RENDERFORMAT: |
| 434 | ONTRACE (fprintf (stderr, "WM_RENDERFORMAT\n")); |
| 435 | run_protected (render, make_number (wp)); |
| 436 | return 0; |
| 437 | |
| 438 | case WM_RENDERALLFORMATS: |
| 439 | ONTRACE (fprintf (stderr, "WM_RENDERALLFORMATS\n")); |
| 440 | run_protected (render_all, Qnil); |
| 441 | return 0; |
| 442 | |
| 443 | case WM_DESTROYCLIPBOARD: |
| 444 | if (!modifying_clipboard) |
| 445 | { |
| 446 | ONTRACE (fprintf (stderr, "WM_DESTROYCLIPBOARD (other)\n")); |
| 447 | current_text = Qnil; |
| 448 | current_coding_system = Qnil; |
| 449 | } |
| 450 | else |
| 451 | { |
| 452 | ONTRACE (fprintf (stderr, "WM_DESTROYCLIPBOARD (self)\n")); |
| 453 | } |
| 454 | return 0; |
| 455 | |
| 456 | case WM_DESTROY: |
| 457 | if (win == clipboard_owner) |
| 458 | clipboard_owner = NULL; |
| 459 | break; |
| 460 | } |
| 461 | |
| 462 | return DefWindowProc (win, msg, wp, lp); |
| 463 | } |
| 464 | |
| 465 | static HWND |
| 466 | create_owner (void) |
| 467 | { |
| 468 | static const char CLASSNAME[] = "Emacs Clipboard"; |
| 469 | WNDCLASS wc; |
| 470 | |
| 471 | memset (&wc, 0, sizeof (wc)); |
| 472 | wc.lpszClassName = CLASSNAME; |
| 473 | wc.lpfnWndProc = owner_callback; |
| 474 | RegisterClass (&wc); |
| 475 | |
| 476 | return CreateWindow (CLASSNAME, CLASSNAME, 0, 0, 0, 0, 0, NULL, NULL, |
| 477 | NULL, NULL); |
| 478 | } |
| 479 | |
| 480 | /* Called on exit by term_ntproc() in w32.c */ |
| 481 | |
| 482 | void |
| 483 | term_w32select (void) |
| 484 | { |
| 485 | /* This is needed to trigger WM_RENDERALLFORMATS. */ |
| 486 | if (clipboard_owner != NULL) |
| 487 | DestroyWindow (clipboard_owner); |
| 488 | } |
| 489 | |
| 490 | static void |
| 491 | setup_config (void) |
| 492 | { |
| 493 | const char *coding_name; |
| 494 | const char *cp; |
| 495 | char *end; |
| 496 | int slen; |
| 497 | Lisp_Object coding_system; |
| 498 | Lisp_Object dos_coding_system; |
| 499 | |
| 500 | CHECK_SYMBOL (Vselection_coding_system); |
| 501 | |
| 502 | coding_system = NILP (Vnext_selection_coding_system) ? |
| 503 | Vselection_coding_system : Vnext_selection_coding_system; |
| 504 | |
| 505 | dos_coding_system = validate_coding_system (coding_system); |
| 506 | if (NILP (dos_coding_system)) |
| 507 | Fsignal (Qerror, |
| 508 | list2 (build_string ("Coding system is invalid or doesn't have " |
| 509 | "an eol variant for dos line ends"), |
| 510 | coding_system)); |
| 511 | |
| 512 | /* Check if we have it cached */ |
| 513 | if (!NILP (cfg_coding_system) |
| 514 | && EQ (cfg_coding_system, dos_coding_system)) |
| 515 | return; |
| 516 | cfg_coding_system = dos_coding_system; |
| 517 | |
| 518 | /* Set some sensible fallbacks */ |
| 519 | cfg_codepage = ANSICP; |
| 520 | cfg_lcid = LOCALE_NEUTRAL; |
| 521 | cfg_clipboard_type = CF_TEXT; |
| 522 | |
| 523 | /* Interpret the coding system symbol name */ |
| 524 | coding_name = SDATA (SYMBOL_NAME (cfg_coding_system)); |
| 525 | |
| 526 | /* "(.*-)?utf-16.*" -> CF_UNICODETEXT */ |
| 527 | cp = strstr (coding_name, "utf-16"); |
| 528 | if (cp != NULL && (cp == coding_name || cp[-1] == '-')) |
| 529 | { |
| 530 | cfg_clipboard_type = CF_UNICODETEXT; |
| 531 | return; |
| 532 | } |
| 533 | |
| 534 | /* "cp[0-9]+.*" or "windows-[0-9]+.*" -> CF_TEXT or CF_OEMTEXT */ |
| 535 | slen = strlen (coding_name); |
| 536 | if (slen >= 4 && coding_name[0] == 'c' && coding_name[1] == 'p') |
| 537 | cp = coding_name + 2; |
| 538 | else if (slen >= 10 && memcmp (coding_name, "windows-", 8) == 0) |
| 539 | cp = coding_name + 8; |
| 540 | else |
| 541 | return; |
| 542 | |
| 543 | end = (char*)cp; |
| 544 | cfg_codepage = strtol (cp, &end, 10); |
| 545 | |
| 546 | /* Error return from strtol() or number of digits < 2 -> Restore the |
| 547 | default and drop it. */ |
| 548 | if (cfg_codepage == 0 || (end-cp) < 2 ) |
| 549 | { |
| 550 | cfg_codepage = ANSICP; |
| 551 | return; |
| 552 | } |
| 553 | |
| 554 | /* Is it the currently active system default? */ |
| 555 | if (cfg_codepage == ANSICP) |
| 556 | { |
| 557 | /* cfg_clipboard_type = CF_TEXT; */ |
| 558 | return; |
| 559 | } |
| 560 | if (cfg_codepage == OEMCP) |
| 561 | { |
| 562 | cfg_clipboard_type = CF_OEMTEXT; |
| 563 | return; |
| 564 | } |
| 565 | |
| 566 | /* Else determine a suitable locale the hard way. */ |
| 567 | EnumSystemLocales (enum_locale_callback, LCID_INSTALLED); |
| 568 | } |
| 569 | |
| 570 | static BOOL WINAPI |
| 571 | enum_locale_callback (/*const*/ char* loc_string) |
| 572 | { |
| 573 | LCID lcid; |
| 574 | UINT codepage; |
| 575 | |
| 576 | lcid = strtoul (loc_string, NULL, 16); |
| 577 | |
| 578 | /* Is the wanted codepage the "ANSI" codepage for this locale? */ |
| 579 | codepage = cp_from_locale (lcid, CF_TEXT); |
| 580 | if (codepage == cfg_codepage) |
| 581 | { |
| 582 | cfg_lcid = lcid; |
| 583 | cfg_clipboard_type = CF_TEXT; |
| 584 | return FALSE; /* Stop enumeration */ |
| 585 | } |
| 586 | |
| 587 | /* Is the wanted codepage the OEM codepage for this locale? */ |
| 588 | codepage = cp_from_locale (lcid, CF_OEMTEXT); |
| 589 | if (codepage == cfg_codepage) |
| 590 | { |
| 591 | cfg_lcid = lcid; |
| 592 | cfg_clipboard_type = CF_OEMTEXT; |
| 593 | return FALSE; /* Stop enumeration */ |
| 594 | } |
| 595 | |
| 596 | return TRUE; /* Continue enumeration */ |
| 597 | } |
| 598 | |
| 599 | static UINT |
| 600 | cp_from_locale (LCID lcid, UINT format) |
| 601 | { |
| 602 | char buffer[20] = ""; |
| 603 | UINT variant, cp; |
| 604 | |
| 605 | variant = |
| 606 | format == CF_TEXT ? LOCALE_IDEFAULTANSICODEPAGE : LOCALE_IDEFAULTCODEPAGE; |
| 607 | |
| 608 | GetLocaleInfo (lcid, variant, buffer, sizeof (buffer)); |
| 609 | cp = strtoul (buffer, NULL, 10); |
| 610 | |
| 611 | if (cp == CP_ACP) |
| 612 | return ANSICP; |
| 613 | else if (cp == CP_OEMCP) |
| 614 | return OEMCP; |
| 615 | else |
| 616 | return cp; |
| 617 | } |
| 618 | |
| 619 | static Lisp_Object |
| 620 | coding_from_cp (UINT codepage) |
| 621 | { |
| 622 | char buffer[30]; |
| 623 | sprintf (buffer, "cp%d-dos", (int) codepage); |
| 624 | return intern (buffer); |
| 625 | /* We don't need to check that this coding system actually exists |
| 626 | right here, because that is done later for all coding systems |
| 627 | used, regardless of where they originate. */ |
| 628 | } |
| 629 | |
| 630 | static Lisp_Object |
| 631 | validate_coding_system (Lisp_Object coding_system) |
| 632 | { |
| 633 | Lisp_Object eol_type; |
| 634 | |
| 635 | /* Make sure the input is valid. */ |
| 636 | if (NILP (Fcoding_system_p (coding_system))) |
| 637 | return Qnil; |
| 638 | |
| 639 | /* Make sure we use a DOS coding system as mandated by the system |
| 640 | specs. */ |
| 641 | eol_type = Fcoding_system_eol_type (coding_system); |
| 642 | |
| 643 | /* Already a DOS coding system? */ |
| 644 | if (EQ (eol_type, make_number (1))) |
| 645 | return coding_system; |
| 646 | |
| 647 | /* Get EOL_TYPE vector of the base of CODING_SYSTEM. */ |
| 648 | if (!VECTORP (eol_type)) |
| 649 | { |
| 650 | eol_type = Fcoding_system_eol_type (Fcoding_system_base (coding_system)); |
| 651 | if (!VECTORP (eol_type)) |
| 652 | return Qnil; |
| 653 | } |
| 654 | |
| 655 | return AREF (eol_type, 1); |
| 656 | } |
| 657 | |
| 658 | static void |
| 659 | setup_windows_coding_system (Lisp_Object coding_system, |
| 660 | struct coding_system * coding) |
| 661 | { |
| 662 | memset (coding, 0, sizeof (*coding)); |
| 663 | setup_coding_system (coding_system, coding); |
| 664 | |
| 665 | /* Unset CODING_ANNOTATE_COMPOSITION_MASK. Previous code had |
| 666 | comments about crashes in encode_coding_iso2022 trying to |
| 667 | dereference a null pointer when composition was on. Selection |
| 668 | data should not contain any composition sequence on Windows. |
| 669 | |
| 670 | CODING_ANNOTATION_MASK also includes |
| 671 | CODING_ANNOTATE_DIRECTION_MASK and CODING_ANNOTATE_CHARSET_MASK, |
| 672 | which both apply to ISO6429 only. We don't know if these really |
| 673 | need to be unset on Windows, but it probably doesn't hurt |
| 674 | either. */ |
| 675 | coding->mode &= ~CODING_ANNOTATION_MASK; |
| 676 | coding->mode |= CODING_MODE_LAST_BLOCK | CODING_MODE_SAFE_ENCODING; |
| 677 | } |
| 678 | |
| 679 | |
| 680 | |
| 681 | DEFUN ("w32-set-clipboard-data", Fw32_set_clipboard_data, |
| 682 | Sw32_set_clipboard_data, 1, 2, 0, |
| 683 | doc: /* This sets the clipboard data to the given text. */) |
| 684 | (Lisp_Object string, Lisp_Object ignored) |
| 685 | { |
| 686 | BOOL ok = TRUE; |
| 687 | int nbytes; |
| 688 | unsigned char *src; |
| 689 | unsigned char *dst; |
| 690 | unsigned char *end; |
| 691 | |
| 692 | /* This parameter used to be the current frame, but we don't use |
| 693 | that any more. */ |
| 694 | (void) ignored; |
| 695 | |
| 696 | CHECK_STRING (string); |
| 697 | |
| 698 | setup_config (); |
| 699 | |
| 700 | current_text = string; |
| 701 | current_coding_system = cfg_coding_system; |
| 702 | current_clipboard_type = cfg_clipboard_type; |
| 703 | current_lcid = cfg_lcid; |
| 704 | current_num_nls = 0; |
| 705 | current_requires_encoding = 0; |
| 706 | |
| 707 | BLOCK_INPUT; |
| 708 | |
| 709 | /* Check for non-ASCII characters. While we are at it, count the |
| 710 | number of LFs, so we know how many CRs we will have to add later |
| 711 | (just in the case where we can use our internal ASCII rendering, |
| 712 | see code and comment in convert_to_handle_as_ascii() above). */ |
| 713 | nbytes = SBYTES (string); |
| 714 | src = SDATA (string); |
| 715 | |
| 716 | for (dst = src, end = src+nbytes; dst < end; dst++) |
| 717 | { |
| 718 | if (*dst == '\n') |
| 719 | current_num_nls++; |
| 720 | else if (*dst >= 0x80 || *dst == 0) |
| 721 | { |
| 722 | current_requires_encoding = 1; |
| 723 | break; |
| 724 | } |
| 725 | } |
| 726 | |
| 727 | if (!current_requires_encoding) |
| 728 | { |
| 729 | /* If all we have is ASCII we don't need to pretend we offer |
| 730 | anything fancy. */ |
| 731 | current_coding_system = Qraw_text; |
| 732 | current_clipboard_type = CF_TEXT; |
| 733 | current_lcid = LOCALE_NEUTRAL; |
| 734 | } |
| 735 | |
| 736 | if (!OpenClipboard (clipboard_owner)) |
| 737 | goto error; |
| 738 | |
| 739 | ++modifying_clipboard; |
| 740 | ok = EmptyClipboard (); |
| 741 | --modifying_clipboard; |
| 742 | |
| 743 | /* If we have something non-ASCII we may want to set a locale. We |
| 744 | do that directly (non-delayed), as it's just a small bit. */ |
| 745 | if (ok) |
| 746 | ok = !NILP (render_locale ()); |
| 747 | |
| 748 | if (ok) |
| 749 | { |
| 750 | if (clipboard_owner == NULL) |
| 751 | { |
| 752 | /* If for some reason we don't have a clipboard_owner, we |
| 753 | just set the text format as chosen by the configuration |
| 754 | and than forget about the whole thing. */ |
| 755 | ok = !NILP (render (make_number (current_clipboard_type))); |
| 756 | current_text = Qnil; |
| 757 | current_coding_system = Qnil; |
| 758 | } |
| 759 | else |
| 760 | { |
| 761 | /* Advertise all supported formats so that whatever the |
| 762 | requester chooses, only one encoding step needs to be |
| 763 | made. This is intentionally different from what we do in |
| 764 | the handler for WM_RENDERALLFORMATS. */ |
| 765 | SetClipboardData (CF_UNICODETEXT, NULL); |
| 766 | SetClipboardData (CF_TEXT, NULL); |
| 767 | SetClipboardData (CF_OEMTEXT, NULL); |
| 768 | } |
| 769 | } |
| 770 | |
| 771 | CloseClipboard (); |
| 772 | |
| 773 | /* With delayed rendering we haven't really "used" this coding |
| 774 | system yet, and it's even unclear if we ever will. But this is a |
| 775 | way to tell the upper level what we *would* use under ideal |
| 776 | circumstances. |
| 777 | |
| 778 | We don't signal the actually used coding-system later when we |
| 779 | finally render, because that can happen at any time and we don't |
| 780 | want to disturb the "foreground" action. */ |
| 781 | if (ok) |
| 782 | Vlast_coding_system_used = current_coding_system; |
| 783 | |
| 784 | Vnext_selection_coding_system = Qnil; |
| 785 | |
| 786 | if (ok) goto done; |
| 787 | |
| 788 | error: |
| 789 | |
| 790 | ok = FALSE; |
| 791 | current_text = Qnil; |
| 792 | current_coding_system = Qnil; |
| 793 | |
| 794 | done: |
| 795 | UNBLOCK_INPUT; |
| 796 | |
| 797 | return (ok ? string : Qnil); |
| 798 | } |
| 799 | |
| 800 | |
| 801 | DEFUN ("w32-get-clipboard-data", Fw32_get_clipboard_data, |
| 802 | Sw32_get_clipboard_data, 0, 1, 0, |
| 803 | doc: /* This gets the clipboard data in text format. */) |
| 804 | (Lisp_Object ignored) |
| 805 | { |
| 806 | HGLOBAL htext; |
| 807 | Lisp_Object ret = Qnil; |
| 808 | UINT actual_clipboard_type; |
| 809 | int use_configured_coding_system = 1; |
| 810 | |
| 811 | /* This parameter used to be the current frame, but we don't use |
| 812 | that any more. */ |
| 813 | (void) ignored; |
| 814 | |
| 815 | /* Don't pass our own text from the clipboard (which might be |
| 816 | troublesome if the killed text includes null characters). */ |
| 817 | if (!NILP (current_text)) |
| 818 | return ret; |
| 819 | |
| 820 | setup_config (); |
| 821 | actual_clipboard_type = cfg_clipboard_type; |
| 822 | |
| 823 | BLOCK_INPUT; |
| 824 | |
| 825 | if (!OpenClipboard (clipboard_owner)) |
| 826 | goto done; |
| 827 | |
| 828 | if ((htext = GetClipboardData (actual_clipboard_type)) == NULL) |
| 829 | { |
| 830 | /* If we want CF_UNICODETEXT but can't get it, the current |
| 831 | coding system is useless. OTOH we can still try and decode |
| 832 | CF_TEXT based on the locale that the system gives us and that |
| 833 | we get down below. */ |
| 834 | if (actual_clipboard_type == CF_UNICODETEXT) |
| 835 | { |
| 836 | htext = GetClipboardData (CF_TEXT); |
| 837 | if (htext != NULL) |
| 838 | { |
| 839 | actual_clipboard_type = CF_TEXT; |
| 840 | use_configured_coding_system = 0; |
| 841 | } |
| 842 | } |
| 843 | } |
| 844 | if (htext == NULL) |
| 845 | goto closeclip; |
| 846 | |
| 847 | { |
| 848 | unsigned char *src; |
| 849 | unsigned char *dst; |
| 850 | int nbytes; |
| 851 | int truelen; |
| 852 | int require_decoding = 0; |
| 853 | |
| 854 | if ((src = (unsigned char *) GlobalLock (htext)) == NULL) |
| 855 | goto closeclip; |
| 856 | |
| 857 | /* If the clipboard data contains any non-ascii code, we need to |
| 858 | decode it with a coding system. */ |
| 859 | if (actual_clipboard_type == CF_UNICODETEXT) |
| 860 | { |
| 861 | nbytes = lstrlenW ((WCHAR *)src) * 2; |
| 862 | require_decoding = 1; |
| 863 | } |
| 864 | else |
| 865 | { |
| 866 | int i; |
| 867 | |
| 868 | nbytes = strlen (src); |
| 869 | |
| 870 | for (i = 0; i < nbytes; i++) |
| 871 | { |
| 872 | if (src[i] >= 0x80) |
| 873 | { |
| 874 | require_decoding = 1; |
| 875 | break; |
| 876 | } |
| 877 | } |
| 878 | } |
| 879 | |
| 880 | if (require_decoding) |
| 881 | { |
| 882 | struct coding_system coding; |
| 883 | Lisp_Object coding_system = Qnil; |
| 884 | Lisp_Object dos_coding_system; |
| 885 | |
| 886 | /* `next-selection-coding-system' should override everything, |
| 887 | even when the locale passed by the system disagrees. The |
| 888 | only exception is when `next-selection-coding-system' |
| 889 | requested CF_UNICODETEXT and we couldn't get that. */ |
| 890 | if (use_configured_coding_system |
| 891 | && !NILP (Vnext_selection_coding_system)) |
| 892 | coding_system = Vnext_selection_coding_system; |
| 893 | |
| 894 | /* If we have CF_TEXT or CF_OEMTEXT, we want to check out |
| 895 | CF_LOCALE, too. */ |
| 896 | else if (actual_clipboard_type != CF_UNICODETEXT) |
| 897 | { |
| 898 | HGLOBAL hlocale; |
| 899 | LCID lcid = DEFAULT_LCID; |
| 900 | UINT cp; |
| 901 | |
| 902 | /* Documentation says that the OS always generates |
| 903 | CF_LOCALE info automatically, so the locale handle |
| 904 | should always be present. Fact is that this is not |
| 905 | always true on 9x ;-(. */ |
| 906 | hlocale = GetClipboardData (CF_LOCALE); |
| 907 | if (hlocale != NULL) |
| 908 | { |
| 909 | const LCID * lcid_ptr; |
| 910 | lcid_ptr = (const LCID *) GlobalLock (hlocale); |
| 911 | if (lcid_ptr != NULL) |
| 912 | { |
| 913 | lcid = *lcid_ptr; |
| 914 | GlobalUnlock (hlocale); |
| 915 | } |
| 916 | |
| 917 | /* 9x has garbage as the sort order (to be exact there |
| 918 | is another instance of the language id in the upper |
| 919 | word). We don't care about sort order anyway, so |
| 920 | we just filter out the unneeded mis-information to |
| 921 | avoid irritations. */ |
| 922 | lcid = MAKELCID (LANGIDFROMLCID (lcid), SORT_DEFAULT); |
| 923 | } |
| 924 | |
| 925 | /* If we are using fallback from CF_UNICODETEXT, we can't |
| 926 | use the configured coding system. Also we don't want |
| 927 | to use it, if the system has supplied us with a locale |
| 928 | and it is not just the system default. */ |
| 929 | if (!use_configured_coding_system || lcid != DEFAULT_LCID) |
| 930 | { |
| 931 | cp = cp_from_locale (lcid, actual_clipboard_type); |
| 932 | /* If it's just our current standard setting anyway, |
| 933 | use the coding system that the user has selected. |
| 934 | Otherwise create a new spec to match the locale |
| 935 | that was specified by the other side or the |
| 936 | system. */ |
| 937 | if (!use_configured_coding_system || cp != cfg_codepage) |
| 938 | coding_system = coding_from_cp (cp); |
| 939 | } |
| 940 | } |
| 941 | |
| 942 | if (NILP (coding_system)) |
| 943 | coding_system = Vselection_coding_system; |
| 944 | Vnext_selection_coding_system = Qnil; |
| 945 | |
| 946 | dos_coding_system = validate_coding_system (coding_system); |
| 947 | if (!NILP (dos_coding_system)) |
| 948 | { |
| 949 | setup_windows_coding_system (dos_coding_system, &coding); |
| 950 | coding.source = src; |
| 951 | decode_coding_object (&coding, Qnil, 0, 0, nbytes, nbytes, Qt); |
| 952 | ret = coding.dst_object; |
| 953 | |
| 954 | Vlast_coding_system_used = CODING_ID_NAME (coding.id); |
| 955 | } |
| 956 | } |
| 957 | else |
| 958 | { |
| 959 | /* FIXME: We may want to repeat the code in this branch for |
| 960 | the Unicode case. */ |
| 961 | |
| 962 | /* Need to know final size after CR chars are removed because |
| 963 | we can't change the string size manually, and doing an |
| 964 | extra copy is silly. We only remove CR when it appears as |
| 965 | part of CRLF. */ |
| 966 | |
| 967 | truelen = nbytes; |
| 968 | dst = src; |
| 969 | /* avoid using strchr because it recomputes the length everytime */ |
| 970 | while ((dst = memchr (dst, '\r', nbytes - (dst - src))) != NULL) |
| 971 | { |
| 972 | if (dst[1] == '\n') /* safe because of trailing '\0' */ |
| 973 | truelen--; |
| 974 | dst++; |
| 975 | } |
| 976 | |
| 977 | ret = make_uninit_string (truelen); |
| 978 | |
| 979 | /* Convert CRLF line endings (the standard CF_TEXT clipboard |
| 980 | format) to LF endings as used internally by Emacs. */ |
| 981 | |
| 982 | dst = SDATA (ret); |
| 983 | while (1) |
| 984 | { |
| 985 | unsigned char *next; |
| 986 | /* copy next line or remaining bytes excluding '\0' */ |
| 987 | next = _memccpy (dst, src, '\r', nbytes); |
| 988 | if (next) |
| 989 | { |
| 990 | /* copied one line ending with '\r' */ |
| 991 | int copied = next - dst; |
| 992 | nbytes -= copied; |
| 993 | dst += copied; |
| 994 | src += copied; |
| 995 | if (*src == '\n') |
| 996 | dst--; /* overwrite '\r' with '\n' */ |
| 997 | } |
| 998 | else |
| 999 | /* copied remaining partial line -> now finished */ |
| 1000 | break; |
| 1001 | } |
| 1002 | |
| 1003 | Vlast_coding_system_used = Qraw_text; |
| 1004 | } |
| 1005 | |
| 1006 | GlobalUnlock (htext); |
| 1007 | } |
| 1008 | |
| 1009 | closeclip: |
| 1010 | CloseClipboard (); |
| 1011 | |
| 1012 | done: |
| 1013 | UNBLOCK_INPUT; |
| 1014 | |
| 1015 | return (ret); |
| 1016 | } |
| 1017 | |
| 1018 | /* Support checking for a clipboard selection. */ |
| 1019 | |
| 1020 | DEFUN ("x-selection-exists-p", Fx_selection_exists_p, Sx_selection_exists_p, |
| 1021 | 0, 1, 0, |
| 1022 | doc: /* Whether there is an owner for the given X Selection. |
| 1023 | The arg should be the name of the selection in question, typically one of |
| 1024 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. |
| 1025 | \(Those are literal upper-case symbol names, since that's what X expects.) |
| 1026 | For convenience, the symbol nil is the same as `PRIMARY', |
| 1027 | and t is the same as `SECONDARY'. */) |
| 1028 | (Lisp_Object selection) |
| 1029 | { |
| 1030 | CHECK_SYMBOL (selection); |
| 1031 | |
| 1032 | /* Return nil for PRIMARY and SECONDARY selections; for CLIPBOARD, check |
| 1033 | if the clipboard currently has valid text format contents. */ |
| 1034 | |
| 1035 | if (EQ (selection, QCLIPBOARD)) |
| 1036 | { |
| 1037 | Lisp_Object val = Qnil; |
| 1038 | |
| 1039 | setup_config (); |
| 1040 | |
| 1041 | if (OpenClipboard (NULL)) |
| 1042 | { |
| 1043 | UINT format = 0; |
| 1044 | while ((format = EnumClipboardFormats (format))) |
| 1045 | /* Check CF_TEXT in addition to cfg_clipboard_type, |
| 1046 | because we can fall back on that if CF_UNICODETEXT is |
| 1047 | not available. Actually a check for CF_TEXT only |
| 1048 | should be enough. */ |
| 1049 | if (format == cfg_clipboard_type || format == CF_TEXT) |
| 1050 | { |
| 1051 | val = Qt; |
| 1052 | break; |
| 1053 | } |
| 1054 | CloseClipboard (); |
| 1055 | } |
| 1056 | return val; |
| 1057 | } |
| 1058 | return Qnil; |
| 1059 | } |
| 1060 | |
| 1061 | /* One-time init. Called in the un-dumped Emacs, but not in the |
| 1062 | dumped version. */ |
| 1063 | |
| 1064 | void |
| 1065 | syms_of_w32select (void) |
| 1066 | { |
| 1067 | defsubr (&Sw32_set_clipboard_data); |
| 1068 | defsubr (&Sw32_get_clipboard_data); |
| 1069 | defsubr (&Sx_selection_exists_p); |
| 1070 | |
| 1071 | DEFVAR_LISP ("selection-coding-system", &Vselection_coding_system, |
| 1072 | doc: /* Coding system for communicating with other programs. |
| 1073 | |
| 1074 | For MS-Windows and MS-DOS: |
| 1075 | When sending or receiving text via selection and clipboard, the text |
| 1076 | is encoded or decoded by this coding system. The default value is |
| 1077 | the current system default encoding on 9x/Me, `utf-16le-dos' |
| 1078 | \(Unicode) on NT/W2K/XP, and `iso-latin-1-dos' on MS-DOS. |
| 1079 | |
| 1080 | For X Windows: |
| 1081 | When sending text via selection and clipboard, if the target |
| 1082 | data-type matches with the type of this coding system, it is used |
| 1083 | for encoding the text. Otherwise (including the case that this |
| 1084 | variable is nil), a proper coding system is used as below: |
| 1085 | |
| 1086 | data-type coding system |
| 1087 | --------- ------------- |
| 1088 | UTF8_STRING utf-8 |
| 1089 | COMPOUND_TEXT compound-text-with-extensions |
| 1090 | STRING iso-latin-1 |
| 1091 | C_STRING no-conversion |
| 1092 | |
| 1093 | When receiving text, if this coding system is non-nil, it is used |
| 1094 | for decoding regardless of the data-type. If this is nil, a |
| 1095 | proper coding system is used according to the data-type as above. |
| 1096 | |
| 1097 | See also the documentation of the variable `x-select-request-type' how |
| 1098 | to control which data-type to request for receiving text. |
| 1099 | |
| 1100 | The default value is nil. */); |
| 1101 | /* The actual value is set dynamically in the dumped Emacs, see |
| 1102 | below. */ |
| 1103 | Vselection_coding_system = Qnil; |
| 1104 | |
| 1105 | DEFVAR_LISP ("next-selection-coding-system", &Vnext_selection_coding_system, |
| 1106 | doc: /* Coding system for the next communication with other programs. |
| 1107 | Usually, `selection-coding-system' is used for communicating with |
| 1108 | other programs (X Windows clients or MS Windows programs). But, if this |
| 1109 | variable is set, it is used for the next communication only. |
| 1110 | After the communication, this variable is set to nil. */); |
| 1111 | Vnext_selection_coding_system = Qnil; |
| 1112 | |
| 1113 | DEFSYM (QCLIPBOARD, "CLIPBOARD"); |
| 1114 | |
| 1115 | cfg_coding_system = Qnil; staticpro (&cfg_coding_system); |
| 1116 | current_text = Qnil; staticpro (¤t_text); |
| 1117 | current_coding_system = Qnil; staticpro (¤t_coding_system); |
| 1118 | |
| 1119 | DEFSYM (QUNICODE, "utf-16le-dos"); |
| 1120 | QANSICP = Qnil; staticpro (&QANSICP); |
| 1121 | QOEMCP = Qnil; staticpro (&QOEMCP); |
| 1122 | } |
| 1123 | |
| 1124 | /* One-time init. Called in the dumped Emacs, but not in the |
| 1125 | un-dumped version. */ |
| 1126 | |
| 1127 | void |
| 1128 | globals_of_w32select (void) |
| 1129 | { |
| 1130 | DEFAULT_LCID = GetUserDefaultLCID (); |
| 1131 | /* Drop the sort order from the LCID, so we can compare this with |
| 1132 | CF_LOCALE objects that have the same fix on 9x. */ |
| 1133 | DEFAULT_LCID = MAKELCID (LANGIDFROMLCID (DEFAULT_LCID), SORT_DEFAULT); |
| 1134 | |
| 1135 | ANSICP = GetACP (); |
| 1136 | OEMCP = GetOEMCP (); |
| 1137 | |
| 1138 | QANSICP = coding_from_cp (ANSICP); |
| 1139 | QOEMCP = coding_from_cp (OEMCP); |
| 1140 | |
| 1141 | if (os_subtype == OS_NT) |
| 1142 | Vselection_coding_system = QUNICODE; |
| 1143 | else if (inhibit_window_system) |
| 1144 | Vselection_coding_system = QOEMCP; |
| 1145 | else |
| 1146 | Vselection_coding_system = QANSICP; |
| 1147 | |
| 1148 | clipboard_owner = create_owner (); |
| 1149 | } |
| 1150 | |