Mercurial > vim
annotate src/winclip.c @ 18478:94223687df0e
Added tag v8.1.2233 for changeset e93cab5d0f0f27fad7882f1f412927df055b090d
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Tue, 29 Oct 2019 04:30:05 +0100 |
| parents | 3147c7c2e86b |
| children | 15539899a112 |
| rev | line source |
|---|---|
|
10042
4aead6a9b7a9
commit https://github.com/vim/vim/commit/edf3f97ae2af024708ebb4ac614227327033ca47
Christian Brabandt <cb@256bit.org>
parents:
8140
diff
changeset
|
1 /* vi:set ts=8 sts=4 sw=4 noet: |
| 4168 | 2 * |
| 3 * VIM - Vi IMproved by Bram Moolenaar | |
| 4 * | |
| 5 * Do ":help uganda" in Vim to read copying and usage conditions. | |
| 6 * Do ":help credits" in Vim to see a list of people who contributed. | |
| 7 * See README.txt for an overview of the Vim source code. | |
| 8 */ | |
| 9 | |
| 10 /* | |
| 11 * winclip.c | |
| 12 * | |
|
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patch 8.0.0281: some files are still using ARGSUSED instead of UNUSED
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13 * Routines for Win32 clipboard handling. |
| 4168 | 14 * Also used by Cygwin, using os_unix.c. |
| 15 */ | |
| 16 | |
| 17 #include "vimio.h" | |
| 18 #include "vim.h" | |
| 19 | |
| 20 /* | |
| 21 * Compile only the clipboard handling features when compiling for cygwin | |
| 22 * posix environment. | |
| 23 */ | |
| 24 #ifdef FEAT_CYGWIN_WIN32_CLIPBOARD | |
| 25 # define WIN32_LEAN_AND_MEAN | |
| 26 # include <windows.h> | |
| 27 # include "winclip.pro" | |
| 28 #endif | |
| 29 | |
| 30 /* | |
| 31 * When generating prototypes for Win32 on Unix, these lines make the syntax | |
| 32 * errors disappear. They do not need to be correct. | |
| 33 */ | |
| 34 #ifdef PROTO | |
| 35 #define WINAPI | |
| 36 #define WINBASEAPI | |
| 37 typedef int DWORD; | |
| 38 typedef int LPBOOL; | |
| 39 typedef int LPCSTR; | |
| 40 typedef int LPCWSTR; | |
| 41 typedef int LPSTR; | |
| 42 typedef int LPWSTR; | |
| 43 typedef int UINT; | |
| 44 #endif | |
| 45 | |
| 46 /* | |
| 47 * Convert an UTF-8 string to UTF-16. | |
| 48 * "instr[inlen]" is the input. "inlen" is in bytes. | |
| 49 * When "outstr" is NULL only return the number of UTF-16 words produced. | |
| 50 * Otherwise "outstr" must be a buffer of sufficient size. | |
| 51 * Returns the number of UTF-16 words produced. | |
| 52 */ | |
| 53 int | |
| 54 utf8_to_utf16(char_u *instr, int inlen, short_u *outstr, int *unconvlenp) | |
| 55 { | |
| 56 int outlen = 0; | |
| 57 char_u *p = instr; | |
| 58 int todo = inlen; | |
| 59 int l; | |
| 60 int ch; | |
| 61 | |
| 62 while (todo > 0) | |
| 63 { | |
| 64 /* Only convert if we have a complete sequence. */ | |
| 65 l = utf_ptr2len_len(p, todo); | |
| 66 if (l > todo) | |
| 67 { | |
| 68 /* Return length of incomplete sequence. */ | |
| 69 if (unconvlenp != NULL) | |
| 70 *unconvlenp = todo; | |
| 71 break; | |
| 72 } | |
| 73 | |
| 74 ch = utf_ptr2char(p); | |
| 75 if (ch >= 0x10000) | |
| 76 { | |
| 77 /* non-BMP character, encoding with surrogate pairs */ | |
| 78 ++outlen; | |
| 79 if (outstr != NULL) | |
| 80 { | |
| 81 *outstr++ = (0xD800 - (0x10000 >> 10)) + (ch >> 10); | |
| 82 *outstr++ = 0xDC00 | (ch & 0x3FF); | |
| 83 } | |
| 84 } | |
| 85 else if (outstr != NULL) | |
| 86 *outstr++ = ch; | |
| 87 ++outlen; | |
| 88 p += l; | |
| 89 todo -= l; | |
| 90 } | |
| 91 | |
| 92 return outlen; | |
| 93 } | |
| 94 | |
| 95 /* | |
| 96 * Convert an UTF-16 string to UTF-8. | |
| 97 * The input is "instr[inlen]" with "inlen" in number of UTF-16 words. | |
| 98 * When "outstr" is NULL only return the required number of bytes. | |
| 99 * Otherwise "outstr" must be a buffer of sufficient size. | |
| 100 * Return the number of bytes produced. | |
| 101 */ | |
| 102 int | |
| 103 utf16_to_utf8(short_u *instr, int inlen, char_u *outstr) | |
| 104 { | |
| 105 int outlen = 0; | |
| 106 int todo = inlen; | |
| 107 short_u *p = instr; | |
| 108 int l; | |
| 109 int ch, ch2; | |
| 110 | |
| 111 while (todo > 0) | |
| 112 { | |
| 113 ch = *p; | |
| 114 if (ch >= 0xD800 && ch <= 0xDBFF && todo > 1) | |
| 115 { | |
| 116 /* surrogate pairs handling */ | |
| 117 ch2 = p[1]; | |
| 118 if (ch2 >= 0xDC00 && ch2 <= 0xDFFF) | |
| 119 { | |
| 120 ch = ((ch - 0xD800) << 10) + (ch2 & 0x3FF) + 0x10000; | |
| 121 ++p; | |
| 122 --todo; | |
| 123 } | |
| 124 } | |
| 125 if (outstr != NULL) | |
| 126 { | |
| 127 l = utf_char2bytes(ch, outstr); | |
| 128 outstr += l; | |
| 129 } | |
| 130 else | |
| 131 l = utf_char2len(ch); | |
| 132 ++p; | |
| 133 outlen += l; | |
| 134 --todo; | |
| 135 } | |
| 136 | |
| 137 return outlen; | |
| 138 } | |
| 139 | |
| 140 /* | |
| 141 * Call MultiByteToWideChar() and allocate memory for the result. | |
| 142 * Returns the result in "*out[*outlen]" with an extra zero appended. | |
| 143 * "outlen" is in words. | |
| 144 */ | |
| 145 void | |
| 146 MultiByteToWideChar_alloc(UINT cp, DWORD flags, | |
| 147 LPCSTR in, int inlen, | |
| 148 LPWSTR *out, int *outlen) | |
| 149 { | |
| 150 *outlen = MultiByteToWideChar(cp, flags, in, inlen, 0, 0); | |
| 151 /* Add one one word to avoid a zero-length alloc(). */ | |
|
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152 *out = ALLOC_MULT(WCHAR, *outlen + 1); |
| 4168 | 153 if (*out != NULL) |
| 154 { | |
| 155 MultiByteToWideChar(cp, flags, in, inlen, *out, *outlen); | |
| 156 (*out)[*outlen] = 0; | |
| 157 } | |
| 158 } | |
| 159 | |
| 160 /* | |
| 161 * Call WideCharToMultiByte() and allocate memory for the result. | |
| 162 * Returns the result in "*out[*outlen]" with an extra NUL appended. | |
| 163 */ | |
| 164 void | |
| 165 WideCharToMultiByte_alloc(UINT cp, DWORD flags, | |
| 166 LPCWSTR in, int inlen, | |
| 167 LPSTR *out, int *outlen, | |
| 168 LPCSTR def, LPBOOL useddef) | |
| 169 { | |
| 170 *outlen = WideCharToMultiByte(cp, flags, in, inlen, NULL, 0, def, useddef); | |
| 171 /* Add one one byte to avoid a zero-length alloc(). */ | |
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172 *out = alloc(*outlen + 1); |
| 4168 | 173 if (*out != NULL) |
| 174 { | |
| 175 WideCharToMultiByte(cp, flags, in, inlen, *out, *outlen, def, useddef); | |
| 176 (*out)[*outlen] = 0; | |
| 177 } | |
| 178 } | |
| 179 | |
| 180 | |
| 181 #ifdef FEAT_CLIPBOARD | |
| 182 /* | |
| 183 * Clipboard stuff, for cutting and pasting text to other windows. | |
| 184 */ | |
| 185 | |
| 186 void | |
| 187 win_clip_init(void) | |
| 188 { | |
| 189 clip_init(TRUE); | |
| 190 | |
| 191 /* | |
| 192 * Vim's own clipboard format recognises whether the text is char, line, | |
| 193 * or rectangular block. Only useful for copying between two Vims. | |
|
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patch 8.1.1531: clipboard type name is inconsistent
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194 * "Clipboard_T" was used for previous versions, using the first |
| 4168 | 195 * character to specify MCHAR, MLINE or MBLOCK. |
| 196 */ | |
| 197 clip_star.format = RegisterClipboardFormat("VimClipboard2"); | |
| 198 clip_star.format_raw = RegisterClipboardFormat("VimRawBytes"); | |
| 199 } | |
| 200 | |
| 201 /* Type used for the clipboard type of Vim's data. */ | |
| 202 typedef struct | |
| 203 { | |
| 204 int type; /* MCHAR, MBLOCK or MLINE */ | |
| 205 int txtlen; /* length of CF_TEXT in bytes */ | |
| 206 int ucslen; /* length of CF_UNICODETEXT in words */ | |
| 207 int rawlen; /* length of clip_star.format_raw, including encoding, | |
| 208 excluding terminating NUL */ | |
| 209 } VimClipType_t; | |
| 210 | |
| 211 /* | |
| 212 * Make vim the owner of the current selection. Return OK upon success. | |
| 213 */ | |
| 214 int | |
|
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215 clip_mch_own_selection(Clipboard_T *cbd UNUSED) |
| 4168 | 216 { |
| 217 /* | |
| 218 * Never actually own the clipboard. If another application sets the | |
| 219 * clipboard, we don't want to think that we still own it. | |
| 220 */ | |
| 221 return FAIL; | |
| 222 } | |
| 223 | |
| 224 /* | |
| 225 * Make vim NOT the owner of the current selection. | |
| 226 */ | |
| 227 void | |
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228 clip_mch_lose_selection(Clipboard_T *cbd UNUSED) |
| 4168 | 229 { |
| 230 /* Nothing needs to be done here */ | |
| 231 } | |
| 232 | |
| 233 /* | |
| 234 * Copy "str[*size]" into allocated memory, changing CR-NL to NL. | |
| 235 * Return the allocated result and the size in "*size". | |
| 236 * Returns NULL when out of memory. | |
| 237 */ | |
| 238 static char_u * | |
| 239 crnl_to_nl(const char_u *str, int *size) | |
| 240 { | |
| 241 int pos = 0; | |
| 242 int str_len = *size; | |
| 243 char_u *ret; | |
| 244 char_u *retp; | |
| 245 | |
| 246 /* Avoid allocating zero bytes, it generates an error message. */ | |
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patch 8.1.1386: unessesary type casts for lalloc()
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247 ret = alloc(str_len == 0 ? 1 : str_len); |
| 4168 | 248 if (ret != NULL) |
| 249 { | |
| 250 retp = ret; | |
| 251 for (pos = 0; pos < str_len; ++pos) | |
| 252 { | |
| 253 if (str[pos] == '\r' && str[pos + 1] == '\n') | |
| 254 { | |
| 255 ++pos; | |
| 256 --(*size); | |
| 257 } | |
| 258 *retp++ = str[pos]; | |
| 259 } | |
| 260 } | |
| 261 | |
| 262 return ret; | |
| 263 } | |
| 264 | |
| 265 /* | |
| 266 * Wait for another process to Close the Clipboard. | |
| 267 * Returns TRUE for success. | |
| 268 */ | |
| 269 static int | |
| 270 vim_open_clipboard(void) | |
| 271 { | |
| 272 int delay = 10; | |
| 273 | |
| 274 while (!OpenClipboard(NULL)) | |
| 275 { | |
| 276 if (delay > 500) | |
| 277 return FALSE; /* waited too long, give up */ | |
| 278 Sleep(delay); | |
| 279 delay *= 2; /* wait for 10, 20, 40, 80, etc. msec */ | |
| 280 } | |
| 281 return TRUE; | |
| 282 } | |
| 283 | |
| 284 /* | |
| 285 * Get the current selection and put it in the clipboard register. | |
| 286 * | |
| 287 * NOTE: Must use GlobalLock/Unlock here to ensure Win32s compatibility. | |
| 288 * On NT/W95 the clipboard data is a fixed global memory object and | |
| 289 * so its handle = its pointer. | |
| 290 * On Win32s, however, co-operation with the Win16 system means that | |
| 291 * the clipboard data is moveable and its handle is not a pointer at all, | |
| 292 * so we can't just cast the return value of GetClipboardData to (char_u*). | |
| 293 * <VN> | |
| 294 */ | |
| 295 void | |
|
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296 clip_mch_request_selection(Clipboard_T *cbd) |
| 4168 | 297 { |
| 298 VimClipType_t metadata = { -1, -1, -1, -1 }; | |
| 299 HGLOBAL hMem = NULL; | |
| 300 char_u *str = NULL; | |
| 301 char_u *to_free = NULL; | |
| 302 HGLOBAL rawh = NULL; | |
| 303 int str_size = 0; | |
| 304 int maxlen; | |
| 305 size_t n; | |
| 306 | |
| 307 /* | |
| 308 * Don't pass GetActiveWindow() as an argument to OpenClipboard() because | |
| 309 * then we can't paste back into the same window for some reason - webb. | |
| 310 */ | |
| 311 if (!vim_open_clipboard()) | |
| 312 return; | |
| 313 | |
| 314 /* Check for vim's own clipboard format first. This only gets the type of | |
| 315 * the data, still need to use CF_UNICODETEXT or CF_TEXT for the text. */ | |
| 316 if (IsClipboardFormatAvailable(cbd->format)) | |
| 317 { | |
| 318 VimClipType_t *meta_p; | |
| 319 HGLOBAL meta_h; | |
| 320 | |
| 321 /* We have metadata on the clipboard; try to get it. */ | |
| 322 if ((meta_h = GetClipboardData(cbd->format)) != NULL | |
| 323 && (meta_p = (VimClipType_t *)GlobalLock(meta_h)) != NULL) | |
| 324 { | |
| 325 /* The size of "VimClipType_t" changed, "rawlen" was added later. | |
| 326 * Only copy what is available for backwards compatibility. */ | |
| 327 n = sizeof(VimClipType_t); | |
| 328 if (GlobalSize(meta_h) < n) | |
| 329 n = GlobalSize(meta_h); | |
| 330 memcpy(&metadata, meta_p, n); | |
| 331 GlobalUnlock(meta_h); | |
| 332 } | |
| 333 } | |
| 334 | |
| 335 /* Check for Vim's raw clipboard format first. This is used without | |
| 336 * conversion, but only if 'encoding' matches. */ | |
| 337 if (IsClipboardFormatAvailable(cbd->format_raw) | |
| 338 && metadata.rawlen > (int)STRLEN(p_enc)) | |
| 339 { | |
| 340 /* We have raw data on the clipboard; try to get it. */ | |
| 341 if ((rawh = GetClipboardData(cbd->format_raw)) != NULL) | |
| 342 { | |
| 343 char_u *rawp; | |
| 344 | |
| 345 rawp = (char_u *)GlobalLock(rawh); | |
| 346 if (rawp != NULL && STRCMP(p_enc, rawp) == 0) | |
| 347 { | |
| 348 n = STRLEN(p_enc) + 1; | |
| 349 str = rawp + n; | |
| 350 str_size = (int)(metadata.rawlen - n); | |
| 351 } | |
| 352 else | |
| 353 { | |
| 354 GlobalUnlock(rawh); | |
| 355 rawh = NULL; | |
| 356 } | |
| 357 } | |
| 358 } | |
| 359 if (str == NULL) | |
| 360 { | |
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361 /* Try to get the clipboard in Unicode if it's not an empty string. */ |
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362 if (IsClipboardFormatAvailable(CF_UNICODETEXT) && metadata.ucslen != 0) |
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363 { |
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364 HGLOBAL hMemW; |
| 4168 | 365 |
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366 if ((hMemW = GetClipboardData(CF_UNICODETEXT)) != NULL) |
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367 { |
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368 WCHAR *hMemWstr = (WCHAR *)GlobalLock(hMemW); |
| 4168 | 369 |
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370 /* Use the length of our metadata if possible, but limit it to |
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371 * the GlobalSize() for safety. */ |
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372 maxlen = (int)(GlobalSize(hMemW) / sizeof(WCHAR)); |
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373 if (metadata.ucslen >= 0) |
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374 { |
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375 if (metadata.ucslen > maxlen) |
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376 str_size = maxlen; |
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377 else |
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378 str_size = metadata.ucslen; |
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379 } |
| 4168 | 380 else |
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381 { |
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382 for (str_size = 0; str_size < maxlen; ++str_size) |
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383 if (hMemWstr[str_size] == NUL) |
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384 break; |
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385 } |
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386 to_free = str = utf16_to_enc((short_u *)hMemWstr, &str_size); |
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387 GlobalUnlock(hMemW); |
| 4168 | 388 } |
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389 } |
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390 /* Get the clipboard in the Active codepage. */ |
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391 else if (IsClipboardFormatAvailable(CF_TEXT)) |
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392 { |
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393 if ((hMem = GetClipboardData(CF_TEXT)) != NULL) |
| 4168 | 394 { |
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395 str = (char_u *)GlobalLock(hMem); |
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396 |
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397 /* The length is either what our metadata says or the strlen(). |
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398 * But limit it to the GlobalSize() for safety. */ |
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399 maxlen = (int)GlobalSize(hMem); |
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400 if (metadata.txtlen >= 0) |
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401 { |
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402 if (metadata.txtlen > maxlen) |
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403 str_size = maxlen; |
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404 else |
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405 str_size = metadata.txtlen; |
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406 } |
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407 else |
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408 { |
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409 for (str_size = 0; str_size < maxlen; ++str_size) |
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410 if (str[str_size] == NUL) |
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411 break; |
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412 } |
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413 |
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414 /* The text is in the active codepage. Convert to |
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415 * 'encoding', going through UTF-16. */ |
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416 acp_to_enc(str, str_size, &to_free, &maxlen); |
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417 if (to_free != NULL) |
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418 { |
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419 str_size = maxlen; |
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420 str = to_free; |
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421 } |
| 4168 | 422 } |
| 423 } | |
| 424 } | |
| 425 | |
| 426 if (str != NULL && *str != NUL) | |
| 427 { | |
| 428 char_u *temp_clipboard; | |
| 429 | |
| 430 /* If the type is not known detect it. */ | |
| 431 if (metadata.type == -1) | |
| 432 metadata.type = MAUTO; | |
| 433 | |
| 434 /* Translate <CR><NL> into <NL>. */ | |
| 435 temp_clipboard = crnl_to_nl(str, &str_size); | |
| 436 if (temp_clipboard != NULL) | |
| 437 { | |
| 438 clip_yank_selection(metadata.type, temp_clipboard, str_size, cbd); | |
| 439 vim_free(temp_clipboard); | |
| 440 } | |
| 441 } | |
| 442 | |
| 443 /* unlock the global object */ | |
| 444 if (hMem != NULL) | |
| 445 GlobalUnlock(hMem); | |
| 446 if (rawh != NULL) | |
| 447 GlobalUnlock(rawh); | |
| 448 CloseClipboard(); | |
| 449 vim_free(to_free); | |
| 450 } | |
| 451 | |
| 452 /* | |
| 453 * Send the current selection to the clipboard. | |
| 454 */ | |
| 455 void | |
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456 clip_mch_set_selection(Clipboard_T *cbd) |
| 4168 | 457 { |
| 458 char_u *str = NULL; | |
| 459 VimClipType_t metadata; | |
| 460 long_u txtlen; | |
| 461 HGLOBAL hMemRaw = NULL; | |
| 462 HGLOBAL hMem = NULL; | |
| 463 HGLOBAL hMemVim = NULL; | |
| 464 HGLOBAL hMemW = NULL; | |
| 465 | |
| 466 /* If the '*' register isn't already filled in, fill it in now */ | |
| 467 cbd->owned = TRUE; | |
| 468 clip_get_selection(cbd); | |
| 469 cbd->owned = FALSE; | |
| 470 | |
| 471 /* Get the text to be put on the clipboard, with CR-LF. */ | |
| 472 metadata.type = clip_convert_selection(&str, &txtlen, cbd); | |
| 473 if (metadata.type < 0) | |
| 474 return; | |
| 475 metadata.txtlen = (int)txtlen; | |
| 476 metadata.ucslen = 0; | |
| 477 metadata.rawlen = 0; | |
| 478 | |
| 479 /* Always set the raw bytes: 'encoding', NUL and the text. This is used | |
| 480 * when copy/paste from/to Vim with the same 'encoding', so that illegal | |
| 481 * bytes can also be copied and no conversion is needed. */ | |
| 482 { | |
| 483 LPSTR lpszMemRaw; | |
| 484 | |
| 485 metadata.rawlen = (int)(txtlen + STRLEN(p_enc) + 1); | |
| 486 hMemRaw = (LPSTR)GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, | |
| 487 metadata.rawlen + 1); | |
| 488 lpszMemRaw = (LPSTR)GlobalLock(hMemRaw); | |
| 489 if (lpszMemRaw != NULL) | |
| 490 { | |
| 491 STRCPY(lpszMemRaw, p_enc); | |
| 492 memcpy(lpszMemRaw + STRLEN(p_enc) + 1, str, txtlen + 1); | |
| 493 GlobalUnlock(hMemRaw); | |
| 494 } | |
| 495 else | |
| 496 metadata.rawlen = 0; | |
| 497 } | |
| 498 | |
| 499 { | |
| 500 WCHAR *out; | |
| 501 int len = metadata.txtlen; | |
| 502 | |
| 503 /* Convert the text to UTF-16. This is put on the clipboard as | |
| 504 * CF_UNICODETEXT. */ | |
| 505 out = (WCHAR *)enc_to_utf16(str, &len); | |
| 506 if (out != NULL) | |
| 507 { | |
| 508 WCHAR *lpszMemW; | |
| 509 | |
| 510 /* Convert the text for CF_TEXT to Active codepage. Otherwise it's | |
| 511 * p_enc, which has no relation to the Active codepage. */ | |
| 512 metadata.txtlen = WideCharToMultiByte(GetACP(), 0, out, len, | |
| 513 NULL, 0, 0, 0); | |
| 514 vim_free(str); | |
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515 str = alloc(metadata.txtlen == 0 ? 1 : metadata.txtlen); |
| 4168 | 516 if (str == NULL) |
| 517 { | |
| 518 vim_free(out); | |
| 519 return; /* out of memory */ | |
| 520 } | |
| 521 WideCharToMultiByte(GetACP(), 0, out, len, | |
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522 (LPSTR)str, metadata.txtlen, 0, 0); |
| 4168 | 523 |
| 524 /* Allocate memory for the UTF-16 text, add one NUL word to | |
| 525 * terminate the string. */ | |
| 526 hMemW = (LPSTR)GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, | |
| 527 (len + 1) * sizeof(WCHAR)); | |
| 528 lpszMemW = (WCHAR *)GlobalLock(hMemW); | |
| 529 if (lpszMemW != NULL) | |
| 530 { | |
| 531 memcpy(lpszMemW, out, len * sizeof(WCHAR)); | |
| 532 lpszMemW[len] = NUL; | |
| 533 GlobalUnlock(hMemW); | |
| 534 } | |
| 535 vim_free(out); | |
| 536 metadata.ucslen = len; | |
| 537 } | |
| 538 } | |
| 539 | |
| 540 /* Allocate memory for the text, add one NUL byte to terminate the string. | |
| 541 */ | |
| 542 hMem = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, metadata.txtlen + 1); | |
| 543 { | |
| 544 LPSTR lpszMem = (LPSTR)GlobalLock(hMem); | |
| 545 | |
| 546 if (lpszMem) | |
| 547 { | |
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548 vim_strncpy((char_u *)lpszMem, str, metadata.txtlen); |
| 4168 | 549 GlobalUnlock(hMem); |
| 550 } | |
| 551 } | |
| 552 | |
| 553 /* Set up metadata: */ | |
| 554 { | |
| 555 VimClipType_t *lpszMemVim = NULL; | |
| 556 | |
| 557 hMemVim = GlobalAlloc(GMEM_MOVEABLE|GMEM_DDESHARE, | |
| 558 sizeof(VimClipType_t)); | |
| 559 lpszMemVim = (VimClipType_t *)GlobalLock(hMemVim); | |
| 560 memcpy(lpszMemVim, &metadata, sizeof(metadata)); | |
| 561 GlobalUnlock(hMemVim); | |
| 562 } | |
| 563 | |
| 564 /* | |
| 565 * Open the clipboard, clear it and put our text on it. | |
| 566 * Always set our Vim format. Put Unicode and plain text on it. | |
| 567 * | |
| 568 * Don't pass GetActiveWindow() as an argument to OpenClipboard() | |
| 569 * because then we can't paste back into the same window for some | |
| 570 * reason - webb. | |
| 571 */ | |
| 572 if (vim_open_clipboard()) | |
| 573 { | |
| 574 if (EmptyClipboard()) | |
| 575 { | |
| 576 SetClipboardData(cbd->format, hMemVim); | |
| 577 hMemVim = 0; | |
| 578 if (hMemW != NULL) | |
| 579 { | |
| 580 if (SetClipboardData(CF_UNICODETEXT, hMemW) != NULL) | |
| 581 hMemW = NULL; | |
| 582 } | |
| 583 /* Always use CF_TEXT. On Win98 Notepad won't obtain the | |
| 584 * CF_UNICODETEXT text, only CF_TEXT. */ | |
| 585 SetClipboardData(CF_TEXT, hMem); | |
| 586 hMem = 0; | |
| 587 } | |
| 588 CloseClipboard(); | |
| 589 } | |
| 590 | |
| 591 vim_free(str); | |
| 592 /* Free any allocations we didn't give to the clipboard: */ | |
| 593 if (hMemRaw) | |
| 594 GlobalFree(hMemRaw); | |
| 595 if (hMem) | |
| 596 GlobalFree(hMem); | |
| 597 if (hMemW) | |
| 598 GlobalFree(hMemW); | |
| 599 if (hMemVim) | |
| 600 GlobalFree(hMemVim); | |
| 601 } | |
| 602 | |
| 603 #endif /* FEAT_CLIPBOARD */ | |
| 604 | |
| 605 /* | |
| 606 * Note: the following two functions are only guaranteed to work when using | |
| 607 * valid MS-Windows codepages or when iconv() is available. | |
| 608 */ | |
| 609 | |
| 610 /* | |
| 611 * Convert "str" from 'encoding' to UTF-16. | |
| 612 * Input in "str" with length "*lenp". When "lenp" is NULL, use strlen(). | |
| 613 * Output is returned as an allocated string. "*lenp" is set to the length of | |
| 614 * the result. A trailing NUL is always added. | |
| 615 * Returns NULL when out of memory. | |
| 616 */ | |
| 617 short_u * | |
| 618 enc_to_utf16(char_u *str, int *lenp) | |
| 619 { | |
| 620 vimconv_T conv; | |
| 621 WCHAR *ret; | |
| 622 char_u *allocbuf = NULL; | |
| 623 int len_loc; | |
| 624 int length; | |
| 625 | |
| 626 if (lenp == NULL) | |
| 627 { | |
| 628 len_loc = (int)STRLEN(str) + 1; | |
| 629 lenp = &len_loc; | |
| 630 } | |
| 631 | |
| 632 if (enc_codepage > 0) | |
| 633 { | |
| 634 /* We can do any CP### -> UTF-16 in one pass, and we can do it | |
| 635 * without iconv() (convert_* may need iconv). */ | |
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636 MultiByteToWideChar_alloc(enc_codepage, 0, (LPCSTR)str, *lenp, |
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637 &ret, &length); |
| 4168 | 638 } |
| 639 else | |
| 640 { | |
| 641 /* Use "latin1" by default, we might be called before we have p_enc | |
| 642 * set up. Convert to utf-8 first, works better with iconv(). Does | |
| 643 * nothing if 'encoding' is "utf-8". */ | |
| 644 conv.vc_type = CONV_NONE; | |
| 645 if (convert_setup(&conv, p_enc ? p_enc : (char_u *)"latin1", | |
| 646 (char_u *)"utf-8") == FAIL) | |
| 647 return NULL; | |
| 648 if (conv.vc_type != CONV_NONE) | |
| 649 { | |
| 650 str = allocbuf = string_convert(&conv, str, lenp); | |
| 651 if (str == NULL) | |
| 652 return NULL; | |
| 653 } | |
| 654 convert_setup(&conv, NULL, NULL); | |
| 655 | |
| 656 length = utf8_to_utf16(str, *lenp, NULL, NULL); | |
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657 ret = ALLOC_MULT(WCHAR, length + 1); |
| 4168 | 658 if (ret != NULL) |
| 659 { | |
| 660 utf8_to_utf16(str, *lenp, (short_u *)ret, NULL); | |
| 661 ret[length] = 0; | |
| 662 } | |
| 663 | |
| 664 vim_free(allocbuf); | |
| 665 } | |
| 666 | |
| 667 *lenp = length; | |
| 668 return (short_u *)ret; | |
| 669 } | |
| 670 | |
| 671 /* | |
| 672 * Convert an UTF-16 string to 'encoding'. | |
| 673 * Input in "str" with length (counted in wide characters) "*lenp". When | |
| 674 * "lenp" is NULL, use wcslen(). | |
| 675 * Output is returned as an allocated string. If "*lenp" is not NULL it is | |
| 676 * set to the length of the result. | |
| 677 * Returns NULL when out of memory. | |
| 678 */ | |
| 679 char_u * | |
| 680 utf16_to_enc(short_u *str, int *lenp) | |
| 681 { | |
| 682 vimconv_T conv; | |
| 683 char_u *utf8_str = NULL, *enc_str = NULL; | |
| 684 int len_loc; | |
| 685 | |
| 686 if (lenp == NULL) | |
| 687 { | |
| 688 len_loc = (int)wcslen(str) + 1; | |
| 689 lenp = &len_loc; | |
| 690 } | |
| 691 | |
| 692 if (enc_codepage > 0) | |
| 693 { | |
| 694 /* We can do any UTF-16 -> CP### in one pass. */ | |
| 695 int length; | |
| 696 | |
| 697 WideCharToMultiByte_alloc(enc_codepage, 0, str, *lenp, | |
| 698 (LPSTR *)&enc_str, &length, 0, 0); | |
| 699 *lenp = length; | |
| 700 return enc_str; | |
| 701 } | |
| 702 | |
| 703 /* Avoid allocating zero bytes, it generates an error message. */ | |
| 704 utf8_str = alloc(utf16_to_utf8(str, *lenp == 0 ? 1 : *lenp, NULL)); | |
| 705 if (utf8_str != NULL) | |
| 706 { | |
| 707 *lenp = utf16_to_utf8(str, *lenp, utf8_str); | |
| 708 | |
| 709 /* We might be called before we have p_enc set up. */ | |
| 710 conv.vc_type = CONV_NONE; | |
| 711 convert_setup(&conv, (char_u *)"utf-8", | |
| 712 p_enc? p_enc: (char_u *)"latin1"); | |
| 713 if (conv.vc_type == CONV_NONE) | |
| 714 { | |
| 715 /* p_enc is utf-8, so we're done. */ | |
| 716 enc_str = utf8_str; | |
| 717 } | |
| 718 else | |
| 719 { | |
| 720 enc_str = string_convert(&conv, utf8_str, lenp); | |
| 721 vim_free(utf8_str); | |
| 722 } | |
| 723 | |
| 724 convert_setup(&conv, NULL, NULL); | |
| 725 } | |
| 726 | |
| 727 return enc_str; | |
| 728 } | |
| 729 | |
| 730 /* | |
| 731 * Convert from the active codepage to 'encoding'. | |
| 732 * Input is "str[str_size]". | |
| 733 * The result is in allocated memory: "out[outlen]". With terminating NUL. | |
| 734 */ | |
| 735 void | |
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736 acp_to_enc( |
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737 char_u *str, |
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738 int str_size, |
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739 char_u **out, |
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740 int *outlen) |
| 4168 | 741 |
| 742 { | |
| 743 LPWSTR widestr; | |
| 744 | |
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745 MultiByteToWideChar_alloc(GetACP(), 0, (LPCSTR)str, str_size, |
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746 &widestr, outlen); |
| 4168 | 747 if (widestr != NULL) |
| 748 { | |
| 749 ++*outlen; /* Include the 0 after the string */ | |
| 750 *out = utf16_to_enc((short_u *)widestr, outlen); | |
| 751 vim_free(widestr); | |
| 752 } | |
| 753 } | |
| 5714 | 754 |
| 755 /* | |
| 756 * Convert from 'encoding' to the active codepage. | |
| 757 * Input is "str[str_size]". | |
| 758 * The result is in allocated memory: "out[outlen]". With terminating NUL. | |
| 759 */ | |
| 760 void | |
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761 enc_to_acp( |
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762 char_u *str, |
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763 int str_size, |
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764 char_u **out, |
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765 int *outlen) |
| 5714 | 766 |
| 767 { | |
| 768 LPWSTR widestr; | |
| 769 int len = str_size; | |
| 770 | |
| 771 widestr = (WCHAR *)enc_to_utf16(str, &len); | |
| 772 if (widestr != NULL) | |
| 773 { | |
| 774 WideCharToMultiByte_alloc(GetACP(), 0, widestr, len, | |
| 775 (LPSTR *)out, outlen, 0, 0); | |
| 776 vim_free(widestr); | |
| 777 } | |
| 778 } |