Commit | Line | Data |
---|---|---|
e9e23e23 | 1 | /* Selection processing for Emacs on the Microsoft W32 API. |
429ab54e | 2 | Copyright (C) 1993, 1994, 2001, 2002, 2003, 2004, |
114f9c96 | 3 | 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
41a48e45 | 4 | |
3b7ad313 EN |
5 | This file is part of GNU Emacs. |
6 | ||
9ec0b715 | 7 | GNU Emacs is free software: you can redistribute it and/or modify |
3b7ad313 | 8 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
9 | the Free Software Foundation, either version 3 of the License, or |
10 | (at your option) any later version. | |
3b7ad313 EN |
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 | |
9ec0b715 | 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
ee78dc32 | 19 | |
52c7f9ee JR |
20 | /* Written by Kevin Gallo, Benjamin Riefenstahl */ |
21 | ||
22 | ||
23 | /* | |
24 | * Notes on usage of selection-coding-system and | |
25 | * next-selection-coding-system on MS Windows: | |
26 | * | |
27 | * The selection coding system variables apply only to the version of | |
28 | * the clipboard data that is closest in type, i.e. when a 16-bit | |
29 | * Unicode coding system is given, they apply to he Unicode clipboard | |
30 | * (CF_UNICODETEXT), when a well-known console codepage is given, they | |
31 | * apply to the console version of the clipboard data (CF_OEMTEXT), | |
32 | * else they apply to the normal 8-bit text clipboard (CF_TEXT). | |
33 | * | |
34 | * When pasting (getting data from the OS), the clipboard format that | |
35 | * matches the {next-}selection-coding-system is retrieved. If | |
36 | * Unicode is requested, but not available, 8-bit text (CF_TEXT) is | |
37 | * used. In all other cases the OS will transparently convert | |
38 | * formats, so no other fallback is needed. | |
39 | * | |
40 | * When copying or cutting (sending data to the OS), the data is | |
41 | * announced and stored internally, but only actually rendered on | |
42 | * request. The requester determines the format provided. The | |
43 | * {next-}selection-coding-system is only used, when its corresponding | |
44 | * clipboard type matches the type requested. | |
45 | * | |
46 | * Scenarios to use the facilities for customizing the selection | |
47 | * coding system are: | |
48 | * | |
49 | * ;; Generally use KOI8-R instead of the russian MS codepage for | |
50 | * ;; the 8-bit clipboard. | |
51 | * (set-selection-coding-system 'koi8-r-dos) | |
52 | * | |
53 | * Or | |
54 | * | |
55 | * ;; Create a special clipboard copy function that uses codepage | |
56 | * ;; 1253 (Greek) to copy Greek text to a specific non-Unicode | |
57 | * ;; application. | |
58 | * (defun greek-copy (beg end) | |
59 | * (interactive "r") | |
60 | * (set-next-selection-coding-system 'cp1253-dos) | |
61 | * (copy-region-as-kill beg end)) | |
62 | * (global-set-key "\C-c\C-c" 'greek-copy) | |
63 | */ | |
64 | ||
65 | /* | |
66 | * Ideas for further directions: | |
67 | * | |
68 | * The encoding and decoding routines could be moved to Lisp code | |
69 | * similar to how xselect.c does it (using well-known routine names | |
70 | * for the delayed rendering). If the definition of which clipboard | |
71 | * types should be supported is also moved to Lisp, functionality | |
72 | * could be expanded to CF_HTML, CF_RTF and maybe other types. | |
73 | */ | |
74 | ||
ee78dc32 | 75 | #include <config.h> |
d7306fe6 | 76 | #include <setjmp.h> |
ee78dc32 | 77 | #include "lisp.h" |
fbd6baed | 78 | #include "w32term.h" /* for all of the w32 includes */ |
52c7f9ee | 79 | #include "w32heap.h" /* os_subtype */ |
ee78dc32 | 80 | #include "blockinput.h" |
52c7f9ee | 81 | #include "keyboard.h" /* cmd_error_internal() */ |
bbb059f3 AI |
82 | #include "charset.h" |
83 | #include "coding.h" | |
c949d9d0 | 84 | #include "character.h" |
f7d05dc4 | 85 | #include "composite.h" |
ee78dc32 | 86 | |
52c7f9ee JR |
87 | |
88 | static HGLOBAL convert_to_handle_as_ascii (void); | |
89 | static HGLOBAL convert_to_handle_as_coded (Lisp_Object coding_system); | |
90 | static Lisp_Object render (Lisp_Object oformat); | |
91 | static Lisp_Object render_locale (void); | |
92 | static Lisp_Object render_all (void); | |
93 | static void run_protected (Lisp_Object (*code) (), Lisp_Object arg); | |
94 | static Lisp_Object lisp_error_handler (Lisp_Object error); | |
95 | static LRESULT CALLBACK owner_callback (HWND win, UINT msg, | |
96 | WPARAM wp, LPARAM lp); | |
97 | static HWND create_owner (void); | |
98 | ||
99 | static void setup_config (void); | |
100 | static BOOL WINAPI enum_locale_callback (/*const*/ char* loc_string); | |
101 | static UINT cp_from_locale (LCID lcid, UINT format); | |
102 | static Lisp_Object coding_from_cp (UINT codepage); | |
9a38f8d5 KH |
103 | static Lisp_Object validate_coding_system (Lisp_Object coding_system); |
104 | static void setup_windows_coding_system (Lisp_Object coding_system, | |
105 | struct coding_system * coding); | |
52c7f9ee JR |
106 | |
107 | ||
108 | /* A remnant from X11: Symbol for the CLIPBORD selection type. Other | |
109 | selections are not used on Windows, so we don't need symbols for | |
110 | PRIMARY and SECONDARY. */ | |
9aa94bd5 KH |
111 | Lisp_Object QCLIPBOARD; |
112 | ||
52c7f9ee | 113 | /* Coding system for communicating with other programs via the |
bbb059f3 | 114 | clipboard. */ |
72aca5fa | 115 | static Lisp_Object Vselection_coding_system; |
bbb059f3 | 116 | |
52c7f9ee | 117 | /* Coding system for the next communication with other programs. */ |
93cbf229 GV |
118 | static Lisp_Object Vnext_selection_coding_system; |
119 | ||
52c7f9ee JR |
120 | /* Internal pseudo-constants, initialized in globals_of_w32select() |
121 | based on current system parameters. */ | |
122 | static LCID DEFAULT_LCID; | |
123 | static UINT ANSICP, OEMCP; | |
124 | static Lisp_Object QUNICODE, QANSICP, QOEMCP; | |
125 | ||
126 | /* A hidden window just for the clipboard management. */ | |
127 | static HWND clipboard_owner; | |
128 | /* A flag to tell WM_DESTROYCLIPBOARD who is to blame this time (just | |
129 | checking GetClipboardOwner() doesn't work, sadly). */ | |
130 | static int modifying_clipboard = 0; | |
131 | ||
132 | /* Configured transfer parameters, based on the last inspection of | |
133 | selection-coding-system. */ | |
134 | static Lisp_Object cfg_coding_system; | |
135 | static UINT cfg_codepage; | |
136 | static LCID cfg_lcid; | |
137 | static UINT cfg_clipboard_type; | |
138 | ||
139 | /* The current state for delayed rendering. */ | |
140 | static Lisp_Object current_text; | |
141 | static Lisp_Object current_coding_system; | |
142 | static int current_requires_encoding, current_num_nls; | |
143 | static UINT current_clipboard_type; | |
144 | static LCID current_lcid; | |
145 | ||
146 | #if TRACE | |
147 | #define ONTRACE(stmt) stmt | |
148 | #else | |
149 | #define ONTRACE(stmt) /*stmt*/ | |
150 | #endif | |
151 | ||
152 | ||
153 | /* This function assumes that there is no multibyte character in | |
154 | current_text, so we can short-cut encoding. */ | |
155 | ||
156 | static HGLOBAL | |
157 | convert_to_handle_as_ascii (void) | |
ee78dc32 | 158 | { |
52c7f9ee JR |
159 | HGLOBAL htext = NULL; |
160 | int nbytes; | |
161 | int truelen; | |
162 | unsigned char *src; | |
163 | unsigned char *dst; | |
41a48e45 | 164 | |
52c7f9ee | 165 | ONTRACE (fprintf (stderr, "convert_to_handle_as_ascii\n")); |
41a48e45 | 166 | |
52c7f9ee JR |
167 | nbytes = SBYTES (current_text) + 1; |
168 | src = SDATA (current_text); | |
41a48e45 | 169 | |
52c7f9ee JR |
170 | /* We need to add to the size the number of LF chars where we have |
171 | to insert CR chars (the standard CF_TEXT clipboard format uses | |
172 | CRLF line endings, while Emacs uses just LF internally). */ | |
41a48e45 | 173 | |
52c7f9ee JR |
174 | truelen = nbytes + current_num_nls; |
175 | ||
176 | if ((htext = GlobalAlloc (GMEM_MOVEABLE | GMEM_DDESHARE, truelen)) == NULL) | |
177 | return NULL; | |
41a48e45 | 178 | |
52c7f9ee JR |
179 | if ((dst = (unsigned char *) GlobalLock (htext)) == NULL) |
180 | { | |
181 | GlobalFree (htext); | |
182 | return NULL; | |
183 | } | |
184 | ||
185 | /* convert to CRLF line endings expected by clipboard */ | |
186 | while (1) | |
187 | { | |
188 | unsigned char *next; | |
189 | /* copy next line or remaining bytes including '\0' */ | |
190 | next = _memccpy (dst, src, '\n', nbytes); | |
191 | if (next) | |
192 | { | |
193 | /* copied one line ending with '\n' */ | |
194 | int copied = next - dst; | |
195 | nbytes -= copied; | |
196 | src += copied; | |
197 | /* insert '\r' before '\n' */ | |
198 | next[-1] = '\r'; | |
199 | next[0] = '\n'; | |
200 | dst = next + 1; | |
201 | } | |
202 | else | |
203 | /* copied remaining partial line -> now finished */ | |
204 | break; | |
205 | } | |
206 | ||
207 | GlobalUnlock (htext); | |
208 | ||
209 | return htext; | |
ee78dc32 GV |
210 | } |
211 | ||
52c7f9ee JR |
212 | /* This function assumes that there are multibyte or NUL characters in |
213 | current_text, or that we need to construct Unicode. It runs the | |
214 | text through the encoding machinery. */ | |
215 | ||
216 | static HGLOBAL | |
217 | convert_to_handle_as_coded (Lisp_Object coding_system) | |
ee78dc32 | 218 | { |
9a38f8d5 | 219 | HGLOBAL htext; |
52c7f9ee | 220 | unsigned char *dst = NULL; |
52c7f9ee | 221 | struct coding_system coding; |
52c7f9ee JR |
222 | |
223 | ONTRACE (fprintf (stderr, "convert_to_handle_as_coded: %s\n", | |
224 | SDATA (SYMBOL_NAME (coding_system)))); | |
225 | ||
9a38f8d5 KH |
226 | setup_windows_coding_system (coding_system, &coding); |
227 | coding.dst_bytes = SBYTES(current_text) * 2; | |
228 | coding.destination = (unsigned char *) xmalloc (coding.dst_bytes); | |
229 | encode_coding_object (&coding, current_text, 0, 0, | |
230 | SCHARS (current_text), SBYTES (current_text), Qnil); | |
41a48e45 | 231 | |
9a38f8d5 | 232 | htext = GlobalAlloc (GMEM_MOVEABLE | GMEM_DDESHARE, coding.produced +2); |
41a48e45 | 233 | |
52c7f9ee JR |
234 | if (htext != NULL) |
235 | dst = (unsigned char *) GlobalLock (htext); | |
41a48e45 | 236 | |
52c7f9ee JR |
237 | if (dst != NULL) |
238 | { | |
9a38f8d5 | 239 | memcpy (dst, coding.destination, coding.produced); |
52c7f9ee JR |
240 | /* Add the string terminator. Add two NULs in case we are |
241 | producing Unicode here. */ | |
242 | dst[coding.produced] = dst[coding.produced+1] = '\0'; | |
52c7f9ee | 243 | |
9a38f8d5 | 244 | GlobalUnlock (htext); |
52c7f9ee JR |
245 | } |
246 | ||
9a38f8d5 KH |
247 | xfree (coding.destination); |
248 | ||
52c7f9ee | 249 | return htext; |
ee78dc32 GV |
250 | } |
251 | ||
52c7f9ee JR |
252 | static Lisp_Object |
253 | render (Lisp_Object oformat) | |
ee78dc32 | 254 | { |
52c7f9ee JR |
255 | HGLOBAL htext = NULL; |
256 | UINT format = XFASTINT (oformat); | |
257 | ||
258 | ONTRACE (fprintf (stderr, "render\n")); | |
259 | ||
260 | if (NILP (current_text)) | |
261 | return Qnil; | |
262 | ||
263 | if (current_requires_encoding || format == CF_UNICODETEXT) | |
264 | { | |
265 | if (format == current_clipboard_type) | |
266 | htext = convert_to_handle_as_coded (current_coding_system); | |
267 | else | |
268 | switch (format) | |
269 | { | |
270 | case CF_UNICODETEXT: | |
271 | htext = convert_to_handle_as_coded (QUNICODE); | |
272 | break; | |
273 | case CF_TEXT: | |
274 | case CF_OEMTEXT: | |
275 | { | |
276 | Lisp_Object cs; | |
277 | cs = coding_from_cp (cp_from_locale (current_lcid, format)); | |
278 | htext = convert_to_handle_as_coded (cs); | |
279 | break; | |
280 | } | |
281 | } | |
282 | } | |
283 | else | |
284 | htext = convert_to_handle_as_ascii (); | |
285 | ||
286 | ONTRACE (fprintf (stderr, "render: htext = 0x%08X\n", (unsigned) htext)); | |
287 | ||
288 | if (htext == NULL) | |
289 | return Qnil; | |
290 | ||
291 | if (SetClipboardData (format, htext) == NULL) | |
292 | { | |
293 | GlobalFree(htext); | |
294 | return Qnil; | |
295 | } | |
296 | ||
297 | return Qt; | |
ee78dc32 GV |
298 | } |
299 | ||
52c7f9ee JR |
300 | static Lisp_Object |
301 | render_locale (void) | |
ee78dc32 | 302 | { |
52c7f9ee JR |
303 | HANDLE hlocale = NULL; |
304 | LCID * lcid_ptr; | |
305 | ||
306 | ONTRACE (fprintf (stderr, "render_locale\n")); | |
307 | ||
308 | if (current_lcid == LOCALE_NEUTRAL || current_lcid == DEFAULT_LCID) | |
309 | return Qt; | |
310 | ||
311 | hlocale = GlobalAlloc (GMEM_MOVEABLE | GMEM_DDESHARE, sizeof (current_lcid)); | |
312 | if (hlocale == NULL) | |
313 | return Qnil; | |
314 | ||
315 | if ((lcid_ptr = (LCID *) GlobalLock (hlocale)) == NULL) | |
316 | { | |
317 | GlobalFree(hlocale); | |
318 | return Qnil; | |
319 | } | |
320 | ||
321 | *lcid_ptr = current_lcid; | |
322 | GlobalUnlock (hlocale); | |
323 | ||
324 | if (SetClipboardData (CF_LOCALE, hlocale) == NULL) | |
325 | { | |
326 | GlobalFree(hlocale); | |
327 | return Qnil; | |
328 | } | |
329 | ||
330 | return Qt; | |
331 | } | |
332 | ||
333 | /* At the end of the program, we want to ensure that our clipboard | |
334 | data survives us. This code will do that. */ | |
335 | ||
336 | static Lisp_Object | |
337 | render_all (void) | |
338 | { | |
339 | ONTRACE (fprintf (stderr, "render_all\n")); | |
340 | ||
341 | /* According to the docs we should not call OpenClipboard() here, | |
342 | but testing on W2K and working code in other projects shows that | |
343 | it is actually necessary. */ | |
344 | ||
345 | OpenClipboard (NULL); | |
346 | ||
347 | /* There is no usefull means to report errors here, there are none | |
348 | expected anyway, and even if there were errors, they wouldn't do | |
349 | any harm. So we just go ahead and do what has to be done without | |
350 | bothering with error handling. */ | |
351 | ||
352 | ++modifying_clipboard; | |
353 | EmptyClipboard (); | |
354 | --modifying_clipboard; | |
355 | ||
356 | /* For text formats that we don't render here, the OS can use its | |
357 | own translation rules instead, so we don't really need to offer | |
358 | everything. To minimize memory consumption we cover three | |
359 | possible situations based on our primary format as detected from | |
360 | selection-coding-system (see setup_config()): | |
361 | ||
362 | - Post CF_TEXT only. Let the OS convert to CF_OEMTEXT and the OS | |
363 | (on NT) or the application (on 9x/Me) convert to | |
364 | CF_UNICODETEXT. | |
365 | ||
366 | - Post CF_OEMTEXT only. Similar automatic conversions happen as | |
367 | for CF_TEXT. | |
368 | ||
369 | - Post CF_UNICODETEXT + CF_TEXT. 9x itself ignores | |
370 | CF_UNICODETEXT, even though some applications can still handle | |
371 | it. | |
372 | ||
373 | Note 1: We render the less capable CF_TEXT *before* the more | |
374 | capable CF_UNICODETEXT, to prevent clobbering through automatic | |
375 | conversions, just in case. | |
376 | ||
377 | Note 2: We could check os_subtype here and only render the | |
378 | additional CF_TEXT on 9x/Me. But OTOH with | |
379 | current_clipboard_type == CF_UNICODETEXT we don't involve the | |
380 | automatic conversions anywhere else, so to get consistent | |
381 | results, we probably don't want to rely on it here either. */ | |
382 | ||
383 | render_locale(); | |
384 | ||
385 | if (current_clipboard_type == CF_UNICODETEXT) | |
386 | render (make_number (CF_TEXT)); | |
387 | render (make_number (current_clipboard_type)); | |
388 | ||
389 | CloseClipboard (); | |
390 | ||
391 | return Qnil; | |
392 | } | |
393 | ||
394 | static void | |
395 | run_protected (Lisp_Object (*code) (), Lisp_Object arg) | |
396 | { | |
397 | /* FIXME: This works but it doesn't feel right. Too much fiddling | |
398 | with global variables and calling strange looking functions. Is | |
399 | this really the right way to run Lisp callbacks? */ | |
400 | ||
401 | extern int waiting_for_input; | |
402 | int owfi; | |
41a48e45 | 403 | |
ee78dc32 | 404 | BLOCK_INPUT; |
41a48e45 | 405 | |
52c7f9ee JR |
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; | |
41a48e45 | 414 | |
ee78dc32 | 415 | UNBLOCK_INPUT; |
52c7f9ee | 416 | } |
41a48e45 | 417 | |
52c7f9ee JR |
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; | |
ee78dc32 GV |
425 | } |
426 | ||
ee78dc32 | 427 | |
52c7f9ee JR |
428 | static LRESULT CALLBACK |
429 | owner_callback (HWND win, UINT msg, WPARAM wp, LPARAM lp) | |
ee78dc32 | 430 | { |
52c7f9ee JR |
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; | |
0ece9ef6 | 455 | |
52c7f9ee JR |
456 | case WM_DESTROY: |
457 | if (win == clipboard_owner) | |
458 | clipboard_owner = NULL; | |
459 | break; | |
460 | } | |
41a48e45 | 461 | |
52c7f9ee JR |
462 | return DefWindowProc (win, msg, wp, lp); |
463 | } | |
41a48e45 | 464 | |
52c7f9ee JR |
465 | static HWND |
466 | create_owner (void) | |
467 | { | |
468 | static const char CLASSNAME[] = "Emacs Clipboard"; | |
469 | WNDCLASS wc; | |
69cddef0 | 470 | |
52c7f9ee JR |
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 | } | |
0ece9ef6 | 489 | |
52c7f9ee JR |
490 | static void |
491 | setup_config (void) | |
492 | { | |
493 | const char *coding_name; | |
494 | const char *cp; | |
495 | char *end; | |
496 | int slen; | |
9a38f8d5 KH |
497 | Lisp_Object coding_system; |
498 | Lisp_Object dos_coding_system; | |
52c7f9ee JR |
499 | |
500 | CHECK_SYMBOL (Vselection_coding_system); | |
501 | ||
9a38f8d5 | 502 | coding_system = NILP (Vnext_selection_coding_system) ? |
52c7f9ee | 503 | Vselection_coding_system : Vnext_selection_coding_system; |
9a38f8d5 KH |
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 */ | |
52c7f9ee | 513 | if (!NILP (cfg_coding_system) |
9a38f8d5 | 514 | && EQ (cfg_coding_system, dos_coding_system)) |
52c7f9ee | 515 | return; |
9a38f8d5 | 516 | cfg_coding_system = dos_coding_system; |
52c7f9ee JR |
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] == '-')) | |
0ece9ef6 | 529 | { |
52c7f9ee JR |
530 | cfg_clipboard_type = CF_UNICODETEXT; |
531 | return; | |
0ece9ef6 | 532 | } |
69cddef0 | 533 | |
52c7f9ee JR |
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 | } | |
bbb059f3 | 553 | |
52c7f9ee JR |
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 | } | |
69cddef0 | 565 | |
52c7f9ee JR |
566 | /* Else determine a suitable locale the hard way. */ |
567 | EnumSystemLocales (enum_locale_callback, LCID_INSTALLED); | |
568 | } | |
69cddef0 | 569 | |
52c7f9ee JR |
570 | static BOOL WINAPI |
571 | enum_locale_callback (/*const*/ char* loc_string) | |
572 | { | |
573 | LCID lcid; | |
574 | UINT codepage; | |
69cddef0 | 575 | |
52c7f9ee | 576 | lcid = strtoul (loc_string, NULL, 16); |
bbb059f3 | 577 | |
52c7f9ee JR |
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 | } | |
41a48e45 | 595 | |
52c7f9ee JR |
596 | return TRUE; /* Continue enumeration */ |
597 | } | |
41a48e45 | 598 | |
52c7f9ee JR |
599 | static UINT |
600 | cp_from_locale (LCID lcid, UINT format) | |
601 | { | |
602 | char buffer[20] = ""; | |
603 | UINT variant, cp; | |
0108f679 | 604 | |
52c7f9ee JR |
605 | variant = |
606 | format == CF_TEXT ? LOCALE_IDEFAULTANSICODEPAGE : LOCALE_IDEFAULTCODEPAGE; | |
bbb059f3 | 607 | |
52c7f9ee JR |
608 | GetLocaleInfo (lcid, variant, buffer, sizeof (buffer)); |
609 | cp = strtoul (buffer, NULL, 10); | |
bf2133d7 | 610 | |
52c7f9ee JR |
611 | if (cp == CP_ACP) |
612 | return ANSICP; | |
613 | else if (cp == CP_OEMCP) | |
614 | return OEMCP; | |
615 | else | |
616 | return cp; | |
617 | } | |
bf2133d7 | 618 | |
52c7f9ee JR |
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); | |
9a38f8d5 KH |
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. */ | |
ee78dc32 | 628 | } |
06466d9a | 629 | |
9a38f8d5 KH |
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 | ||
06466d9a | 680 | |
33f09670 JR |
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. */) | |
52c7f9ee JR |
684 | (string, ignored) |
685 | Lisp_Object string, ignored; | |
ee78dc32 GV |
686 | { |
687 | BOOL ok = TRUE; | |
69cddef0 | 688 | int nbytes; |
69cddef0 GV |
689 | unsigned char *src; |
690 | unsigned char *dst; | |
52c7f9ee | 691 | unsigned char *end; |
06466d9a | 692 | |
52c7f9ee JR |
693 | /* This parameter used to be the current frame, but we don't use |
694 | that any more. */ | |
695 | (void) ignored; | |
41a48e45 | 696 | |
b7826503 | 697 | CHECK_STRING (string); |
41a48e45 | 698 | |
52c7f9ee | 699 | setup_config (); |
41a48e45 | 700 | |
52c7f9ee JR |
701 | current_text = string; |
702 | current_coding_system = cfg_coding_system; | |
703 | current_clipboard_type = cfg_clipboard_type; | |
704 | current_lcid = cfg_lcid; | |
705 | current_num_nls = 0; | |
706 | current_requires_encoding = 0; | |
707 | ||
ee78dc32 | 708 | BLOCK_INPUT; |
69cddef0 | 709 | |
52c7f9ee JR |
710 | /* Check for non-ASCII characters. While we are at it, count the |
711 | number of LFs, so we know how many CRs we will have to add later | |
712 | (just in the case where we can use our internal ASCII rendering, | |
713 | see code and comment in convert_to_handle_as_ascii() above). */ | |
714 | nbytes = SBYTES (string); | |
d5db4077 | 715 | src = SDATA (string); |
0ece9ef6 | 716 | |
52c7f9ee | 717 | for (dst = src, end = src+nbytes; dst < end; dst++) |
0ece9ef6 | 718 | { |
52c7f9ee JR |
719 | if (*dst == '\n') |
720 | current_num_nls++; | |
721 | else if (*dst >= 0x80 || *dst == 0) | |
722 | { | |
723 | current_requires_encoding = 1; | |
724 | break; | |
725 | } | |
0ece9ef6 | 726 | } |
69cddef0 | 727 | |
52c7f9ee JR |
728 | if (!current_requires_encoding) |
729 | { | |
730 | /* If all we have is ASCII we don't need to pretend we offer | |
731 | anything fancy. */ | |
732 | current_coding_system = Qraw_text; | |
733 | current_clipboard_type = CF_TEXT; | |
734 | current_lcid = LOCALE_NEUTRAL; | |
735 | } | |
0108f679 | 736 | |
52c7f9ee | 737 | if (!OpenClipboard (clipboard_owner)) |
ee78dc32 | 738 | goto error; |
06466d9a | 739 | |
52c7f9ee JR |
740 | ++modifying_clipboard; |
741 | ok = EmptyClipboard (); | |
742 | --modifying_clipboard; | |
06466d9a | 743 | |
52c7f9ee JR |
744 | /* If we have something non-ASCII we may want to set a locale. We |
745 | do that directly (non-delayed), as it's just a small bit. */ | |
746 | if (ok) | |
747 | ok = !NILP(render_locale()); | |
06466d9a | 748 | |
52c7f9ee JR |
749 | if (ok) |
750 | { | |
751 | if (clipboard_owner == NULL) | |
752 | { | |
753 | /* If for some reason we don't have a clipboard_owner, we | |
754 | just set the text format as chosen by the configuration | |
755 | and than forget about the whole thing. */ | |
756 | ok = !NILP(render (make_number (current_clipboard_type))); | |
757 | current_text = Qnil; | |
758 | current_coding_system = Qnil; | |
759 | } | |
760 | else | |
761 | { | |
762 | /* Advertise all supported formats so that whatever the | |
763 | requester chooses, only one encoding step needs to be | |
764 | made. This is intentionally different from what we do in | |
765 | the handler for WM_RENDERALLFORMATS. */ | |
766 | SetClipboardData (CF_UNICODETEXT, NULL); | |
767 | SetClipboardData (CF_TEXT, NULL); | |
768 | SetClipboardData (CF_OEMTEXT, NULL); | |
769 | } | |
770 | } | |
41a48e45 | 771 | |
6383ca22 JR |
772 | CloseClipboard (); |
773 | ||
52c7f9ee JR |
774 | /* With delayed rendering we haven't really "used" this coding |
775 | system yet, and it's even unclear if we ever will. But this is a | |
776 | way to tell the upper level what we *would* use under ideal | |
777 | circumstances. | |
41a48e45 | 778 | |
52c7f9ee JR |
779 | We don't signal the actually used coding-system later when we |
780 | finally render, because that can happen at any time and we don't | |
781 | want to disturb the "foreground" action. */ | |
782 | if (ok) | |
783 | Vlast_coding_system_used = current_coding_system; | |
6383ca22 | 784 | |
52c7f9ee | 785 | Vnext_selection_coding_system = Qnil; |
ee79d1aa | 786 | |
ee78dc32 GV |
787 | if (ok) goto done; |
788 | ||
789 | error: | |
41a48e45 | 790 | |
ee78dc32 | 791 | ok = FALSE; |
52c7f9ee JR |
792 | current_text = Qnil; |
793 | current_coding_system = Qnil; | |
ee79d1aa | 794 | |
ee78dc32 GV |
795 | done: |
796 | UNBLOCK_INPUT; | |
41a48e45 | 797 | |
ee78dc32 GV |
798 | return (ok ? string : Qnil); |
799 | } | |
800 | ||
52c7f9ee | 801 | |
33f09670 JR |
802 | DEFUN ("w32-get-clipboard-data", Fw32_get_clipboard_data, |
803 | Sw32_get_clipboard_data, 0, 1, 0, | |
804 | doc: /* This gets the clipboard data in text format. */) | |
52c7f9ee JR |
805 | (ignored) |
806 | Lisp_Object ignored; | |
ee78dc32 | 807 | { |
52c7f9ee | 808 | HGLOBAL htext; |
ee78dc32 | 809 | Lisp_Object ret = Qnil; |
52c7f9ee JR |
810 | UINT actual_clipboard_type; |
811 | int use_configured_coding_system = 1; | |
812 | ||
813 | /* This parameter used to be the current frame, but we don't use | |
814 | that any more. */ | |
815 | (void) ignored; | |
41a48e45 | 816 | |
52c7f9ee JR |
817 | /* Don't pass our own text from the clipboard (which might be |
818 | troublesome if the killed text includes null characters). */ | |
819 | if (!NILP (current_text)) | |
820 | return ret; | |
821 | ||
822 | setup_config (); | |
823 | actual_clipboard_type = cfg_clipboard_type; | |
41a48e45 | 824 | |
ee78dc32 | 825 | BLOCK_INPUT; |
41a48e45 | 826 | |
52c7f9ee | 827 | if (!OpenClipboard (clipboard_owner)) |
ee78dc32 | 828 | goto done; |
41a48e45 | 829 | |
52c7f9ee JR |
830 | if ((htext = GetClipboardData (actual_clipboard_type)) == NULL) |
831 | { | |
832 | /* If we want CF_UNICODETEXT but can't get it, the current | |
833 | coding system is useless. OTOH we can still try and decode | |
834 | CF_TEXT based on the locale that the system gives us and that | |
835 | we get down below. */ | |
836 | if (actual_clipboard_type == CF_UNICODETEXT) | |
837 | { | |
838 | htext = GetClipboardData (CF_TEXT); | |
839 | if (htext != NULL) | |
840 | { | |
841 | actual_clipboard_type = CF_TEXT; | |
842 | use_configured_coding_system = 0; | |
843 | } | |
844 | } | |
845 | } | |
846 | if (htext == NULL) | |
ee78dc32 GV |
847 | goto closeclip; |
848 | ||
ee78dc32 | 849 | { |
69cddef0 GV |
850 | unsigned char *src; |
851 | unsigned char *dst; | |
ee78dc32 | 852 | int nbytes; |
69cddef0 | 853 | int truelen; |
c0ca703b | 854 | int require_decoding = 0; |
41a48e45 | 855 | |
69cddef0 | 856 | if ((src = (unsigned char *) GlobalLock (htext)) == NULL) |
ee78dc32 | 857 | goto closeclip; |
41a48e45 | 858 | |
52c7f9ee JR |
859 | /* If the clipboard data contains any non-ascii code, we need to |
860 | decode it with a coding system. */ | |
861 | if (actual_clipboard_type == CF_UNICODETEXT) | |
862 | { | |
863 | nbytes = lstrlenW ((WCHAR *)src) * 2; | |
864 | require_decoding = 1; | |
865 | } | |
866 | else | |
867 | { | |
868 | int i; | |
06466d9a | 869 | |
52c7f9ee | 870 | nbytes = strlen (src); |
aab7e392 | 871 | |
52c7f9ee JR |
872 | for (i = 0; i < nbytes; i++) |
873 | { | |
874 | if (src[i] >= 0x80) | |
875 | { | |
876 | require_decoding = 1; | |
877 | break; | |
878 | } | |
879 | } | |
880 | } | |
93cbf229 | 881 | |
c0ca703b | 882 | if (require_decoding) |
69cddef0 | 883 | { |
bbb059f3 | 884 | struct coding_system coding; |
52c7f9ee | 885 | Lisp_Object coding_system = Qnil; |
9a38f8d5 | 886 | Lisp_Object dos_coding_system; |
52c7f9ee JR |
887 | |
888 | /* `next-selection-coding-system' should override everything, | |
889 | even when the locale passed by the system disagrees. The | |
890 | only exception is when `next-selection-coding-system' | |
891 | requested CF_UNICODETEXT and we couldn't get that. */ | |
892 | if (use_configured_coding_system | |
893 | && !NILP (Vnext_selection_coding_system)) | |
894 | coding_system = Vnext_selection_coding_system; | |
895 | ||
896 | /* If we have CF_TEXT or CF_OEMTEXT, we want to check out | |
897 | CF_LOCALE, too. */ | |
898 | else if (actual_clipboard_type != CF_UNICODETEXT) | |
899 | { | |
900 | HGLOBAL hlocale; | |
901 | LCID lcid = DEFAULT_LCID; | |
902 | UINT cp; | |
903 | ||
904 | /* Documentation says that the OS always generates | |
905 | CF_LOCALE info automatically, so the locale handle | |
906 | should always be present. Fact is that this is not | |
907 | always true on 9x ;-(. */ | |
908 | hlocale = GetClipboardData (CF_LOCALE); | |
909 | if (hlocale != NULL) | |
910 | { | |
911 | const LCID * lcid_ptr; | |
912 | lcid_ptr = (const LCID *) GlobalLock (hlocale); | |
913 | if (lcid_ptr != NULL) | |
914 | { | |
915 | lcid = *lcid_ptr; | |
916 | GlobalUnlock (hlocale); | |
917 | } | |
918 | ||
919 | /* 9x has garbage as the sort order (to be exact there | |
920 | is another instance of the language id in the upper | |
921 | word). We don't care about sort order anyway, so | |
922 | we just filter out the unneeded mis-information to | |
923 | avoid irritations. */ | |
924 | lcid = MAKELCID (LANGIDFROMLCID (lcid), SORT_DEFAULT); | |
925 | } | |
926 | ||
927 | /* If we are using fallback from CF_UNICODETEXT, we can't | |
928 | use the configured coding system. Also we don't want | |
929 | to use it, if the system has supplied us with a locale | |
930 | and it is not just the system default. */ | |
931 | if (!use_configured_coding_system || lcid != DEFAULT_LCID) | |
932 | { | |
933 | cp = cp_from_locale (lcid, actual_clipboard_type); | |
934 | /* If it's just our current standard setting anyway, | |
935 | use the coding system that the user has selected. | |
936 | Otherwise create a new spec to match the locale | |
937 | that was specified by the other side or the | |
938 | system. */ | |
939 | if (!use_configured_coding_system || cp != cfg_codepage) | |
940 | coding_system = coding_from_cp (cp); | |
941 | } | |
942 | } | |
943 | ||
944 | if (NILP (coding_system)) | |
945 | coding_system = Vselection_coding_system; | |
946 | Vnext_selection_coding_system = Qnil; | |
bbb059f3 | 947 | |
9a38f8d5 KH |
948 | dos_coding_system = validate_coding_system (coding_system); |
949 | if (!NILP (dos_coding_system)) | |
950 | { | |
951 | setup_windows_coding_system (dos_coding_system, &coding); | |
952 | coding.source = src; | |
953 | decode_coding_object (&coding, Qnil, 0, 0, nbytes, nbytes, Qt); | |
954 | ret = coding.dst_object; | |
955 | ||
956 | Vlast_coding_system_used = CODING_ID_NAME (coding.id); | |
957 | } | |
69cddef0 | 958 | } |
bbb059f3 AI |
959 | else |
960 | { | |
52c7f9ee JR |
961 | /* FIXME: We may want to repeat the code in this branch for |
962 | the Unicode case. */ | |
963 | ||
964 | /* Need to know final size after CR chars are removed because | |
965 | we can't change the string size manually, and doing an | |
966 | extra copy is silly. We only remove CR when it appears as | |
967 | part of CRLF. */ | |
bbb059f3 AI |
968 | |
969 | truelen = nbytes; | |
970 | dst = src; | |
971 | /* avoid using strchr because it recomputes the length everytime */ | |
972 | while ((dst = memchr (dst, '\r', nbytes - (dst - src))) != NULL) | |
973 | { | |
c0ca703b GV |
974 | if (dst[1] == '\n') /* safe because of trailing '\0' */ |
975 | truelen--; | |
bbb059f3 AI |
976 | dst++; |
977 | } | |
69cddef0 | 978 | |
bbb059f3 | 979 | ret = make_uninit_string (truelen); |
69cddef0 | 980 | |
c0ca703b GV |
981 | /* Convert CRLF line endings (the standard CF_TEXT clipboard |
982 | format) to LF endings as used internally by Emacs. */ | |
69cddef0 | 983 | |
d5db4077 | 984 | dst = SDATA (ret); |
bbb059f3 | 985 | while (1) |
69cddef0 | 986 | { |
bbb059f3 AI |
987 | unsigned char *next; |
988 | /* copy next line or remaining bytes excluding '\0' */ | |
989 | next = _memccpy (dst, src, '\r', nbytes); | |
990 | if (next) | |
991 | { | |
992 | /* copied one line ending with '\r' */ | |
993 | int copied = next - dst; | |
994 | nbytes -= copied; | |
c0ca703b | 995 | dst += copied; |
bbb059f3 | 996 | src += copied; |
c0ca703b GV |
997 | if (*src == '\n') |
998 | dst--; /* overwrite '\r' with '\n' */ | |
999 | } | |
bbb059f3 AI |
1000 | else |
1001 | /* copied remaining partial line -> now finished */ | |
1002 | break; | |
1003 | } | |
0108f679 AI |
1004 | |
1005 | Vlast_coding_system_used = Qraw_text; | |
69cddef0 GV |
1006 | } |
1007 | ||
ee78dc32 GV |
1008 | GlobalUnlock (htext); |
1009 | } | |
1010 | ||
1011 | closeclip: | |
1012 | CloseClipboard (); | |
41a48e45 | 1013 | |
ee78dc32 GV |
1014 | done: |
1015 | UNBLOCK_INPUT; | |
41a48e45 | 1016 | |
ee78dc32 GV |
1017 | return (ret); |
1018 | } | |
1019 | ||
9aa94bd5 KH |
1020 | /* Support checking for a clipboard selection. */ |
1021 | ||
1022 | DEFUN ("x-selection-exists-p", Fx_selection_exists_p, Sx_selection_exists_p, | |
33f09670 JR |
1023 | 0, 1, 0, |
1024 | doc: /* Whether there is an owner for the given X Selection. | |
1025 | The arg should be the name of the selection in question, typically one of | |
1026 | the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'. | |
1027 | \(Those are literal upper-case symbol names, since that's what X expects.) | |
1028 | For convenience, the symbol nil is the same as `PRIMARY', | |
1029 | and t is the same as `SECONDARY'. */) | |
9aa94bd5 KH |
1030 | (selection) |
1031 | Lisp_Object selection; | |
1032 | { | |
b7826503 | 1033 | CHECK_SYMBOL (selection); |
9aa94bd5 KH |
1034 | |
1035 | /* Return nil for PRIMARY and SECONDARY selections; for CLIPBOARD, check | |
1036 | if the clipboard currently has valid text format contents. */ | |
1037 | ||
1038 | if (EQ (selection, QCLIPBOARD)) | |
1039 | { | |
1040 | Lisp_Object val = Qnil; | |
1041 | ||
9a38f8d5 KH |
1042 | setup_config (); |
1043 | ||
9aa94bd5 KH |
1044 | if (OpenClipboard (NULL)) |
1045 | { | |
52c7f9ee | 1046 | UINT format = 0; |
52c7f9ee JR |
1047 | while ((format = EnumClipboardFormats (format))) |
1048 | /* Check CF_TEXT in addition to cfg_clipboard_type, | |
1049 | because we can fall back on that if CF_UNICODETEXT is | |
1050 | not available. Actually a check for CF_TEXT only | |
1051 | should be enough. */ | |
1052 | if (format == cfg_clipboard_type || format == CF_TEXT) | |
9aa94bd5 KH |
1053 | { |
1054 | val = Qt; | |
1055 | break; | |
1056 | } | |
1057 | CloseClipboard (); | |
1058 | } | |
1059 | return val; | |
1060 | } | |
1061 | return Qnil; | |
1062 | } | |
1063 | ||
52c7f9ee JR |
1064 | /* One-time init. Called in the un-dumped Emacs, but not in the |
1065 | dumped version. */ | |
1066 | ||
41a48e45 | 1067 | void |
fbd6baed | 1068 | syms_of_w32select () |
ee78dc32 | 1069 | { |
fbd6baed GV |
1070 | defsubr (&Sw32_set_clipboard_data); |
1071 | defsubr (&Sw32_get_clipboard_data); | |
9aa94bd5 KH |
1072 | defsubr (&Sx_selection_exists_p); |
1073 | ||
72aca5fa | 1074 | DEFVAR_LISP ("selection-coding-system", &Vselection_coding_system, |
33f09670 | 1075 | doc: /* Coding system for communicating with other programs. |
52c7f9ee JR |
1076 | When sending or receiving text via cut_buffer, selection, and |
1077 | clipboard, the text is encoded or decoded by this coding system. | |
1078 | The default value is the current system default encoding on 9x/Me and | |
1079 | `utf-16le-dos' (Unicode) on NT/W2K/XP. */); | |
1080 | /* The actual value is set dynamically in the dumped Emacs, see | |
1081 | below. */ | |
1082 | Vselection_coding_system = Qnil; | |
bbb059f3 | 1083 | |
93cbf229 | 1084 | DEFVAR_LISP ("next-selection-coding-system", &Vnext_selection_coding_system, |
33f09670 JR |
1085 | doc: /* Coding system for the next communication with other programs. |
1086 | Usually, `selection-coding-system' is used for communicating with | |
3b32ae2c JB |
1087 | other programs. But, if this variable is set, it is used for the |
1088 | next communication only. After the communication, this variable is | |
33f09670 | 1089 | set to nil. */); |
93cbf229 GV |
1090 | Vnext_selection_coding_system = Qnil; |
1091 | ||
9c9d6d8b | 1092 | DEFSYM (QCLIPBOARD, "CLIPBOARD"); |
52c7f9ee JR |
1093 | |
1094 | cfg_coding_system = Qnil; staticpro (&cfg_coding_system); | |
1095 | current_text = Qnil; staticpro (¤t_text); | |
1096 | current_coding_system = Qnil; staticpro (¤t_coding_system); | |
1097 | ||
9c9d6d8b | 1098 | DEFSYM (QUNICODE, "utf-16le-dos"); |
52c7f9ee JR |
1099 | QANSICP = Qnil; staticpro (&QANSICP); |
1100 | QOEMCP = Qnil; staticpro (&QOEMCP); | |
1101 | } | |
1102 | ||
1103 | /* One-time init. Called in the dumped Emacs, but not in the | |
1104 | un-dumped version. */ | |
1105 | ||
1106 | void | |
1107 | globals_of_w32select () | |
1108 | { | |
1109 | DEFAULT_LCID = GetUserDefaultLCID (); | |
1110 | /* Drop the sort order from the LCID, so we can compare this with | |
1111 | CF_LOCALE objects that have the same fix on 9x. */ | |
1112 | DEFAULT_LCID = MAKELCID (LANGIDFROMLCID (DEFAULT_LCID), SORT_DEFAULT); | |
1113 | ||
1114 | ANSICP = GetACP (); | |
1115 | OEMCP = GetOEMCP (); | |
1116 | ||
1117 | QANSICP = coding_from_cp (ANSICP); | |
1118 | QOEMCP = coding_from_cp (OEMCP); | |
1119 | ||
1120 | if (os_subtype == OS_NT) | |
1121 | Vselection_coding_system = QUNICODE; | |
1122 | else if (inhibit_window_system) | |
1123 | Vselection_coding_system = QOEMCP; | |
1124 | else | |
1125 | Vselection_coding_system = QANSICP; | |
1126 | ||
1127 | clipboard_owner = create_owner (); | |
ee78dc32 | 1128 | } |
6b61353c KH |
1129 | |
1130 | /* arch-tag: c96e9724-5eb1-4dad-be07-289f092fd2af | |
1131 | (do not change this comment) */ |