Mercurial > vim
annotate src/winclip.c @ 21350:e5e32c9f711f
Added tag v8.2.1225 for changeset 8488d9cc3ccd623ea3a5968675d37d0e13967d5c
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Thu, 16 Jul 2020 22:30:05 +0200 |
| parents | 599b29b6e540 |
| children | fc859aea8cec |
| rev | line source |
|---|---|
|
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commit https://github.com/vim/vim/commit/edf3f97ae2af024708ebb4ac614227327033ca47
Christian Brabandt <cb@256bit.org>
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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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13 * Routines for Win32 clipboard handling. |
| 4168 | 14 * Also used by Cygwin, using os_unix.c. |
| 15 */ | |
| 16 | |
| 17 #include "vim.h" | |
| 18 | |
| 19 /* | |
| 20 * Compile only the clipboard handling features when compiling for cygwin | |
| 21 * posix environment. | |
| 22 */ | |
| 23 #ifdef FEAT_CYGWIN_WIN32_CLIPBOARD | |
| 24 # define WIN32_LEAN_AND_MEAN | |
| 25 # include <windows.h> | |
| 26 # include "winclip.pro" | |
| 27 #endif | |
| 28 | |
| 29 /* | |
| 30 * When generating prototypes for Win32 on Unix, these lines make the syntax | |
| 31 * errors disappear. They do not need to be correct. | |
| 32 */ | |
| 33 #ifdef PROTO | |
| 34 #define WINAPI | |
| 35 #define WINBASEAPI | |
| 36 typedef int DWORD; | |
| 37 typedef int LPBOOL; | |
| 38 typedef int LPCSTR; | |
| 39 typedef int LPCWSTR; | |
| 40 typedef int LPSTR; | |
| 41 typedef int LPWSTR; | |
| 42 typedef int UINT; | |
| 43 #endif | |
| 44 | |
| 45 /* | |
| 46 * Convert an UTF-8 string to UTF-16. | |
| 47 * "instr[inlen]" is the input. "inlen" is in bytes. | |
| 48 * When "outstr" is NULL only return the number of UTF-16 words produced. | |
| 49 * Otherwise "outstr" must be a buffer of sufficient size. | |
| 50 * Returns the number of UTF-16 words produced. | |
| 51 */ | |
| 52 int | |
| 53 utf8_to_utf16(char_u *instr, int inlen, short_u *outstr, int *unconvlenp) | |
| 54 { | |
| 55 int outlen = 0; | |
| 56 char_u *p = instr; | |
| 57 int todo = inlen; | |
| 58 int l; | |
| 59 int ch; | |
| 60 | |
| 61 while (todo > 0) | |
| 62 { | |
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63 // Only convert if we have a complete sequence. |
| 4168 | 64 l = utf_ptr2len_len(p, todo); |
| 65 if (l > todo) | |
| 66 { | |
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67 // Return length of incomplete sequence. |
| 4168 | 68 if (unconvlenp != NULL) |
| 69 *unconvlenp = todo; | |
| 70 break; | |
| 71 } | |
| 72 | |
| 73 ch = utf_ptr2char(p); | |
| 74 if (ch >= 0x10000) | |
| 75 { | |
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76 // non-BMP character, encoding with surrogate pairs |
| 4168 | 77 ++outlen; |
| 78 if (outstr != NULL) | |
| 79 { | |
| 80 *outstr++ = (0xD800 - (0x10000 >> 10)) + (ch >> 10); | |
| 81 *outstr++ = 0xDC00 | (ch & 0x3FF); | |
| 82 } | |
| 83 } | |
| 84 else if (outstr != NULL) | |
| 85 *outstr++ = ch; | |
| 86 ++outlen; | |
| 87 p += l; | |
| 88 todo -= l; | |
| 89 } | |
| 90 | |
| 91 return outlen; | |
| 92 } | |
| 93 | |
| 94 /* | |
| 95 * Convert an UTF-16 string to UTF-8. | |
| 96 * The input is "instr[inlen]" with "inlen" in number of UTF-16 words. | |
| 97 * When "outstr" is NULL only return the required number of bytes. | |
| 98 * Otherwise "outstr" must be a buffer of sufficient size. | |
| 99 * Return the number of bytes produced. | |
| 100 */ | |
| 101 int | |
| 102 utf16_to_utf8(short_u *instr, int inlen, char_u *outstr) | |
| 103 { | |
| 104 int outlen = 0; | |
| 105 int todo = inlen; | |
| 106 short_u *p = instr; | |
| 107 int l; | |
| 108 int ch, ch2; | |
| 109 | |
| 110 while (todo > 0) | |
| 111 { | |
| 112 ch = *p; | |
| 113 if (ch >= 0xD800 && ch <= 0xDBFF && todo > 1) | |
| 114 { | |
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115 // surrogate pairs handling |
| 4168 | 116 ch2 = p[1]; |
| 117 if (ch2 >= 0xDC00 && ch2 <= 0xDFFF) | |
| 118 { | |
| 119 ch = ((ch - 0xD800) << 10) + (ch2 & 0x3FF) + 0x10000; | |
| 120 ++p; | |
| 121 --todo; | |
| 122 } | |
| 123 } | |
| 124 if (outstr != NULL) | |
| 125 { | |
| 126 l = utf_char2bytes(ch, outstr); | |
| 127 outstr += l; | |
| 128 } | |
| 129 else | |
| 130 l = utf_char2len(ch); | |
| 131 ++p; | |
| 132 outlen += l; | |
| 133 --todo; | |
| 134 } | |
| 135 | |
| 136 return outlen; | |
| 137 } | |
| 138 | |
| 139 /* | |
| 140 * Call MultiByteToWideChar() and allocate memory for the result. | |
| 141 * Returns the result in "*out[*outlen]" with an extra zero appended. | |
| 142 * "outlen" is in words. | |
| 143 */ | |
| 144 void | |
| 145 MultiByteToWideChar_alloc(UINT cp, DWORD flags, | |
| 146 LPCSTR in, int inlen, | |
| 147 LPWSTR *out, int *outlen) | |
| 148 { | |
| 149 *outlen = MultiByteToWideChar(cp, flags, in, inlen, 0, 0); | |
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150 // Add one one word to avoid a zero-length alloc(). |
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151 *out = ALLOC_MULT(WCHAR, *outlen + 1); |
| 4168 | 152 if (*out != NULL) |
| 153 { | |
| 154 MultiByteToWideChar(cp, flags, in, inlen, *out, *outlen); | |
| 155 (*out)[*outlen] = 0; | |
| 156 } | |
| 157 } | |
| 158 | |
| 159 /* | |
| 160 * Call WideCharToMultiByte() and allocate memory for the result. | |
| 161 * Returns the result in "*out[*outlen]" with an extra NUL appended. | |
| 162 */ | |
| 163 void | |
| 164 WideCharToMultiByte_alloc(UINT cp, DWORD flags, | |
| 165 LPCWSTR in, int inlen, | |
| 166 LPSTR *out, int *outlen, | |
| 167 LPCSTR def, LPBOOL useddef) | |
| 168 { | |
| 169 *outlen = WideCharToMultiByte(cp, flags, in, inlen, NULL, 0, def, useddef); | |
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170 // Add one one byte to avoid a zero-length alloc(). |
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171 *out = alloc(*outlen + 1); |
| 4168 | 172 if (*out != NULL) |
| 173 { | |
| 174 WideCharToMultiByte(cp, flags, in, inlen, *out, *outlen, def, useddef); | |
| 175 (*out)[*outlen] = 0; | |
| 176 } | |
| 177 } | |
| 178 | |
| 179 | |
| 180 #ifdef FEAT_CLIPBOARD | |
| 181 /* | |
| 182 * Clipboard stuff, for cutting and pasting text to other windows. | |
| 183 */ | |
| 184 | |
| 185 void | |
| 186 win_clip_init(void) | |
| 187 { | |
| 188 clip_init(TRUE); | |
| 189 | |
| 190 /* | |
| 191 * Vim's own clipboard format recognises whether the text is char, line, | |
| 192 * or rectangular block. Only useful for copying between two Vims. | |
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193 * "Clipboard_T" was used for previous versions, using the first |
| 4168 | 194 * character to specify MCHAR, MLINE or MBLOCK. |
| 195 */ | |
| 196 clip_star.format = RegisterClipboardFormat("VimClipboard2"); | |
| 197 clip_star.format_raw = RegisterClipboardFormat("VimRawBytes"); | |
| 198 } | |
| 199 | |
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200 // Type used for the clipboard type of Vim's data. |
| 4168 | 201 typedef struct |
| 202 { | |
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203 int type; // MCHAR, MBLOCK or MLINE |
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204 int txtlen; // length of CF_TEXT in bytes |
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205 int ucslen; // length of CF_UNICODETEXT in words |
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206 int rawlen; // length of clip_star.format_raw, including encoding, |
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207 // excluding terminating NUL |
| 4168 | 208 } VimClipType_t; |
| 209 | |
| 210 /* | |
| 211 * Make vim the owner of the current selection. Return OK upon success. | |
| 212 */ | |
| 213 int | |
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214 clip_mch_own_selection(Clipboard_T *cbd UNUSED) |
| 4168 | 215 { |
| 216 /* | |
| 217 * Never actually own the clipboard. If another application sets the | |
| 218 * clipboard, we don't want to think that we still own it. | |
| 219 */ | |
| 220 return FAIL; | |
| 221 } | |
| 222 | |
| 223 /* | |
| 224 * Make vim NOT the owner of the current selection. | |
| 225 */ | |
| 226 void | |
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227 clip_mch_lose_selection(Clipboard_T *cbd UNUSED) |
| 4168 | 228 { |
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229 // Nothing needs to be done here |
| 4168 | 230 } |
| 231 | |
| 232 /* | |
| 233 * Copy "str[*size]" into allocated memory, changing CR-NL to NL. | |
| 234 * Return the allocated result and the size in "*size". | |
| 235 * Returns NULL when out of memory. | |
| 236 */ | |
| 237 static char_u * | |
| 238 crnl_to_nl(const char_u *str, int *size) | |
| 239 { | |
| 240 int pos = 0; | |
| 241 int str_len = *size; | |
| 242 char_u *ret; | |
| 243 char_u *retp; | |
| 244 | |
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245 // Avoid allocating zero bytes, it generates an error message. |
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246 ret = alloc(str_len == 0 ? 1 : str_len); |
| 4168 | 247 if (ret != NULL) |
| 248 { | |
| 249 retp = ret; | |
| 250 for (pos = 0; pos < str_len; ++pos) | |
| 251 { | |
| 252 if (str[pos] == '\r' && str[pos + 1] == '\n') | |
| 253 { | |
| 254 ++pos; | |
| 255 --(*size); | |
| 256 } | |
| 257 *retp++ = str[pos]; | |
| 258 } | |
| 259 } | |
| 260 | |
| 261 return ret; | |
| 262 } | |
| 263 | |
| 264 /* | |
| 265 * Wait for another process to Close the Clipboard. | |
| 266 * Returns TRUE for success. | |
| 267 */ | |
| 268 static int | |
| 269 vim_open_clipboard(void) | |
| 270 { | |
| 271 int delay = 10; | |
| 272 | |
| 273 while (!OpenClipboard(NULL)) | |
| 274 { | |
| 275 if (delay > 500) | |
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276 return FALSE; // waited too long, give up |
| 4168 | 277 Sleep(delay); |
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278 delay *= 2; // wait for 10, 20, 40, 80, etc. msec |
| 4168 | 279 } |
| 280 return TRUE; | |
| 281 } | |
| 282 | |
| 283 /* | |
| 284 * Get the current selection and put it in the clipboard register. | |
| 285 * | |
| 286 * NOTE: Must use GlobalLock/Unlock here to ensure Win32s compatibility. | |
| 287 * On NT/W95 the clipboard data is a fixed global memory object and | |
| 288 * so its handle = its pointer. | |
| 289 * On Win32s, however, co-operation with the Win16 system means that | |
| 290 * the clipboard data is moveable and its handle is not a pointer at all, | |
| 291 * so we can't just cast the return value of GetClipboardData to (char_u*). | |
| 292 * <VN> | |
| 293 */ | |
| 294 void | |
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295 clip_mch_request_selection(Clipboard_T *cbd) |
| 4168 | 296 { |
| 297 VimClipType_t metadata = { -1, -1, -1, -1 }; | |
| 298 HGLOBAL hMem = NULL; | |
| 299 char_u *str = NULL; | |
| 300 char_u *to_free = NULL; | |
| 301 HGLOBAL rawh = NULL; | |
| 302 int str_size = 0; | |
| 303 int maxlen; | |
| 304 size_t n; | |
| 305 | |
| 306 /* | |
| 307 * Don't pass GetActiveWindow() as an argument to OpenClipboard() because | |
| 308 * then we can't paste back into the same window for some reason - webb. | |
| 309 */ | |
| 310 if (!vim_open_clipboard()) | |
| 311 return; | |
| 312 | |
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313 // Check for vim's own clipboard format first. This only gets the type of |
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314 // the data, still need to use CF_UNICODETEXT or CF_TEXT for the text. |
| 4168 | 315 if (IsClipboardFormatAvailable(cbd->format)) |
| 316 { | |
| 317 VimClipType_t *meta_p; | |
| 318 HGLOBAL meta_h; | |
| 319 | |
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320 // We have metadata on the clipboard; try to get it. |
| 4168 | 321 if ((meta_h = GetClipboardData(cbd->format)) != NULL |
| 322 && (meta_p = (VimClipType_t *)GlobalLock(meta_h)) != NULL) | |
| 323 { | |
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324 // The size of "VimClipType_t" changed, "rawlen" was added later. |
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325 // Only copy what is available for backwards compatibility. |
| 4168 | 326 n = sizeof(VimClipType_t); |
| 327 if (GlobalSize(meta_h) < n) | |
| 328 n = GlobalSize(meta_h); | |
| 329 memcpy(&metadata, meta_p, n); | |
| 330 GlobalUnlock(meta_h); | |
| 331 } | |
| 332 } | |
| 333 | |
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334 // Check for Vim's raw clipboard format first. This is used without |
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335 // conversion, but only if 'encoding' matches. |
| 4168 | 336 if (IsClipboardFormatAvailable(cbd->format_raw) |
| 337 && metadata.rawlen > (int)STRLEN(p_enc)) | |
| 338 { | |
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339 // We have raw data on the clipboard; try to get it. |
| 4168 | 340 if ((rawh = GetClipboardData(cbd->format_raw)) != NULL) |
| 341 { | |
| 342 char_u *rawp; | |
| 343 | |
| 344 rawp = (char_u *)GlobalLock(rawh); | |
| 345 if (rawp != NULL && STRCMP(p_enc, rawp) == 0) | |
| 346 { | |
| 347 n = STRLEN(p_enc) + 1; | |
| 348 str = rawp + n; | |
| 349 str_size = (int)(metadata.rawlen - n); | |
| 350 } | |
| 351 else | |
| 352 { | |
| 353 GlobalUnlock(rawh); | |
| 354 rawh = NULL; | |
| 355 } | |
| 356 } | |
| 357 } | |
| 358 if (str == NULL) | |
| 359 { | |
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360 // Try to get the clipboard in Unicode if it's not an empty string. |
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361 if (IsClipboardFormatAvailable(CF_UNICODETEXT) && metadata.ucslen != 0) |
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362 { |
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363 HGLOBAL hMemW; |
| 4168 | 364 |
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365 if ((hMemW = GetClipboardData(CF_UNICODETEXT)) != NULL) |
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366 { |
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367 WCHAR *hMemWstr = (WCHAR *)GlobalLock(hMemW); |
| 4168 | 368 |
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369 // Use the length of our metadata if possible, but limit it to |
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370 // the GlobalSize() for safety. |
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371 maxlen = (int)(GlobalSize(hMemW) / sizeof(WCHAR)); |
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372 if (metadata.ucslen >= 0) |
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373 { |
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374 if (metadata.ucslen > maxlen) |
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375 str_size = maxlen; |
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376 else |
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377 str_size = metadata.ucslen; |
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378 } |
| 4168 | 379 else |
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380 { |
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381 for (str_size = 0; str_size < maxlen; ++str_size) |
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382 if (hMemWstr[str_size] == NUL) |
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383 break; |
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384 } |
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385 to_free = str = utf16_to_enc((short_u *)hMemWstr, &str_size); |
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386 GlobalUnlock(hMemW); |
| 4168 | 387 } |
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388 } |
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389 // Get the clipboard in the Active codepage. |
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390 else if (IsClipboardFormatAvailable(CF_TEXT)) |
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391 { |
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392 if ((hMem = GetClipboardData(CF_TEXT)) != NULL) |
| 4168 | 393 { |
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394 str = (char_u *)GlobalLock(hMem); |
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395 |
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396 // The length is either what our metadata says or the strlen(). |
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397 // But limit it to the GlobalSize() for safety. |
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398 maxlen = (int)GlobalSize(hMem); |
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399 if (metadata.txtlen >= 0) |
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400 { |
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401 if (metadata.txtlen > maxlen) |
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402 str_size = maxlen; |
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403 else |
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404 str_size = metadata.txtlen; |
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405 } |
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406 else |
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407 { |
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408 for (str_size = 0; str_size < maxlen; ++str_size) |
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409 if (str[str_size] == NUL) |
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410 break; |
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411 } |
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412 |
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413 // The text is in the active codepage. Convert to |
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414 // 'encoding', going through UTF-16. |
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415 acp_to_enc(str, str_size, &to_free, &maxlen); |
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416 if (to_free != NULL) |
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417 { |
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418 str_size = maxlen; |
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419 str = to_free; |
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420 } |
| 4168 | 421 } |
| 422 } | |
| 423 } | |
| 424 | |
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425 if (str != NULL && metadata.txtlen != 0) |
| 4168 | 426 { |
| 427 char_u *temp_clipboard; | |
| 428 | |
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429 // If the type is not known detect it. |
| 4168 | 430 if (metadata.type == -1) |
| 431 metadata.type = MAUTO; | |
| 432 | |
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433 // Translate <CR><NL> into <NL>. |
| 4168 | 434 temp_clipboard = crnl_to_nl(str, &str_size); |
| 435 if (temp_clipboard != NULL) | |
| 436 { | |
| 437 clip_yank_selection(metadata.type, temp_clipboard, str_size, cbd); | |
| 438 vim_free(temp_clipboard); | |
| 439 } | |
| 440 } | |
| 441 | |
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442 // unlock the global object |
| 4168 | 443 if (hMem != NULL) |
| 444 GlobalUnlock(hMem); | |
| 445 if (rawh != NULL) | |
| 446 GlobalUnlock(rawh); | |
| 447 CloseClipboard(); | |
| 448 vim_free(to_free); | |
| 449 } | |
| 450 | |
| 451 /* | |
| 452 * Send the current selection to the clipboard. | |
| 453 */ | |
| 454 void | |
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455 clip_mch_set_selection(Clipboard_T *cbd) |
| 4168 | 456 { |
| 457 char_u *str = NULL; | |
| 458 VimClipType_t metadata; | |
| 459 long_u txtlen; | |
| 460 HGLOBAL hMemRaw = NULL; | |
| 461 HGLOBAL hMem = NULL; | |
| 462 HGLOBAL hMemVim = NULL; | |
| 463 HGLOBAL hMemW = NULL; | |
| 464 | |
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465 // If the '*' register isn't already filled in, fill it in now |
| 4168 | 466 cbd->owned = TRUE; |
| 467 clip_get_selection(cbd); | |
| 468 cbd->owned = FALSE; | |
| 469 | |
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470 // Get the text to be put on the clipboard, with CR-LF. |
| 4168 | 471 metadata.type = clip_convert_selection(&str, &txtlen, cbd); |
| 472 if (metadata.type < 0) | |
| 473 return; | |
| 474 metadata.txtlen = (int)txtlen; | |
| 475 metadata.ucslen = 0; | |
| 476 metadata.rawlen = 0; | |
| 477 | |
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478 // Always set the raw bytes: 'encoding', NUL and the text. This is used |
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479 // when copy/paste from/to Vim with the same 'encoding', so that illegal |
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480 // bytes can also be copied and no conversion is needed. |
| 4168 | 481 { |
| 482 LPSTR lpszMemRaw; | |
| 483 | |
| 484 metadata.rawlen = (int)(txtlen + STRLEN(p_enc) + 1); | |
| 485 hMemRaw = (LPSTR)GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, | |
| 486 metadata.rawlen + 1); | |
| 487 lpszMemRaw = (LPSTR)GlobalLock(hMemRaw); | |
| 488 if (lpszMemRaw != NULL) | |
| 489 { | |
| 490 STRCPY(lpszMemRaw, p_enc); | |
| 491 memcpy(lpszMemRaw + STRLEN(p_enc) + 1, str, txtlen + 1); | |
| 492 GlobalUnlock(hMemRaw); | |
| 493 } | |
| 494 else | |
| 495 metadata.rawlen = 0; | |
| 496 } | |
| 497 | |
| 498 { | |
| 499 WCHAR *out; | |
| 500 int len = metadata.txtlen; | |
| 501 | |
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502 // Convert the text to UTF-16. This is put on the clipboard as |
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503 // CF_UNICODETEXT. |
| 4168 | 504 out = (WCHAR *)enc_to_utf16(str, &len); |
| 505 if (out != NULL) | |
| 506 { | |
| 507 WCHAR *lpszMemW; | |
| 508 | |
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509 // Convert the text for CF_TEXT to Active codepage. Otherwise it's |
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510 // p_enc, which has no relation to the Active codepage. |
| 4168 | 511 metadata.txtlen = WideCharToMultiByte(GetACP(), 0, out, len, |
| 512 NULL, 0, 0, 0); | |
| 513 vim_free(str); | |
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514 str = alloc(metadata.txtlen == 0 ? 1 : metadata.txtlen); |
| 4168 | 515 if (str == NULL) |
| 516 { | |
| 517 vim_free(out); | |
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518 return; // out of memory |
| 4168 | 519 } |
| 520 WideCharToMultiByte(GetACP(), 0, out, len, | |
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521 (LPSTR)str, metadata.txtlen, 0, 0); |
| 4168 | 522 |
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523 // Allocate memory for the UTF-16 text, add one NUL word to |
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524 // terminate the string. |
| 4168 | 525 hMemW = (LPSTR)GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, |
| 526 (len + 1) * sizeof(WCHAR)); | |
| 527 lpszMemW = (WCHAR *)GlobalLock(hMemW); | |
| 528 if (lpszMemW != NULL) | |
| 529 { | |
| 530 memcpy(lpszMemW, out, len * sizeof(WCHAR)); | |
| 531 lpszMemW[len] = NUL; | |
| 532 GlobalUnlock(hMemW); | |
| 533 } | |
| 534 vim_free(out); | |
| 535 metadata.ucslen = len; | |
| 536 } | |
| 537 } | |
| 538 | |
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539 // Allocate memory for the text, add one NUL byte to terminate the string. |
| 4168 | 540 hMem = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, metadata.txtlen + 1); |
| 541 { | |
| 542 LPSTR lpszMem = (LPSTR)GlobalLock(hMem); | |
| 543 | |
| 544 if (lpszMem) | |
| 545 { | |
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546 mch_memmove((char_u *)lpszMem, str, metadata.txtlen); |
| 4168 | 547 GlobalUnlock(hMem); |
| 548 } | |
| 549 } | |
| 550 | |
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551 // Set up metadata: |
| 4168 | 552 { |
| 553 VimClipType_t *lpszMemVim = NULL; | |
| 554 | |
| 555 hMemVim = GlobalAlloc(GMEM_MOVEABLE|GMEM_DDESHARE, | |
| 556 sizeof(VimClipType_t)); | |
| 557 lpszMemVim = (VimClipType_t *)GlobalLock(hMemVim); | |
| 558 memcpy(lpszMemVim, &metadata, sizeof(metadata)); | |
| 559 GlobalUnlock(hMemVim); | |
| 560 } | |
| 561 | |
| 562 /* | |
| 563 * Open the clipboard, clear it and put our text on it. | |
| 564 * Always set our Vim format. Put Unicode and plain text on it. | |
| 565 * | |
| 566 * Don't pass GetActiveWindow() as an argument to OpenClipboard() | |
| 567 * because then we can't paste back into the same window for some | |
| 568 * reason - webb. | |
| 569 */ | |
| 570 if (vim_open_clipboard()) | |
| 571 { | |
| 572 if (EmptyClipboard()) | |
| 573 { | |
| 574 SetClipboardData(cbd->format, hMemVim); | |
| 575 hMemVim = 0; | |
| 576 if (hMemW != NULL) | |
| 577 { | |
| 578 if (SetClipboardData(CF_UNICODETEXT, hMemW) != NULL) | |
| 579 hMemW = NULL; | |
| 580 } | |
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581 // Always use CF_TEXT. On Win98 Notepad won't obtain the |
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582 // CF_UNICODETEXT text, only CF_TEXT. |
| 4168 | 583 SetClipboardData(CF_TEXT, hMem); |
| 584 hMem = 0; | |
| 585 } | |
| 586 CloseClipboard(); | |
| 587 } | |
| 588 | |
| 589 vim_free(str); | |
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590 // Free any allocations we didn't give to the clipboard: |
| 4168 | 591 if (hMemRaw) |
| 592 GlobalFree(hMemRaw); | |
| 593 if (hMem) | |
| 594 GlobalFree(hMem); | |
| 595 if (hMemW) | |
| 596 GlobalFree(hMemW); | |
| 597 if (hMemVim) | |
| 598 GlobalFree(hMemVim); | |
| 599 } | |
| 600 | |
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601 #endif // FEAT_CLIPBOARD |
| 4168 | 602 |
| 603 /* | |
| 604 * Note: the following two functions are only guaranteed to work when using | |
| 605 * valid MS-Windows codepages or when iconv() is available. | |
| 606 */ | |
| 607 | |
| 608 /* | |
| 609 * Convert "str" from 'encoding' to UTF-16. | |
| 610 * Input in "str" with length "*lenp". When "lenp" is NULL, use strlen(). | |
| 611 * Output is returned as an allocated string. "*lenp" is set to the length of | |
| 612 * the result. A trailing NUL is always added. | |
| 613 * Returns NULL when out of memory. | |
| 614 */ | |
| 615 short_u * | |
| 616 enc_to_utf16(char_u *str, int *lenp) | |
| 617 { | |
| 618 vimconv_T conv; | |
| 619 WCHAR *ret; | |
| 620 char_u *allocbuf = NULL; | |
| 621 int len_loc; | |
| 622 int length; | |
| 623 | |
| 624 if (lenp == NULL) | |
| 625 { | |
| 626 len_loc = (int)STRLEN(str) + 1; | |
| 627 lenp = &len_loc; | |
| 628 } | |
| 629 | |
| 630 if (enc_codepage > 0) | |
| 631 { | |
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632 // We can do any CP### -> UTF-16 in one pass, and we can do it |
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633 // without iconv() (convert_* may need iconv). |
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634 MultiByteToWideChar_alloc(enc_codepage, 0, (LPCSTR)str, *lenp, |
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635 &ret, &length); |
| 4168 | 636 } |
| 637 else | |
| 638 { | |
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639 // Use "latin1" by default, we might be called before we have p_enc |
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640 // set up. Convert to utf-8 first, works better with iconv(). Does |
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641 // nothing if 'encoding' is "utf-8". |
| 4168 | 642 conv.vc_type = CONV_NONE; |
| 643 if (convert_setup(&conv, p_enc ? p_enc : (char_u *)"latin1", | |
| 644 (char_u *)"utf-8") == FAIL) | |
| 645 return NULL; | |
| 646 if (conv.vc_type != CONV_NONE) | |
| 647 { | |
| 648 str = allocbuf = string_convert(&conv, str, lenp); | |
| 649 if (str == NULL) | |
| 650 return NULL; | |
| 651 } | |
| 652 convert_setup(&conv, NULL, NULL); | |
| 653 | |
| 654 length = utf8_to_utf16(str, *lenp, NULL, NULL); | |
|
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parents:
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diff
changeset
|
655 ret = ALLOC_MULT(WCHAR, length + 1); |
| 4168 | 656 if (ret != NULL) |
| 657 { | |
| 658 utf8_to_utf16(str, *lenp, (short_u *)ret, NULL); | |
| 659 ret[length] = 0; | |
| 660 } | |
| 661 | |
| 662 vim_free(allocbuf); | |
| 663 } | |
| 664 | |
| 665 *lenp = length; | |
| 666 return (short_u *)ret; | |
| 667 } | |
| 668 | |
| 669 /* | |
| 670 * Convert an UTF-16 string to 'encoding'. | |
| 671 * Input in "str" with length (counted in wide characters) "*lenp". When | |
| 672 * "lenp" is NULL, use wcslen(). | |
| 673 * Output is returned as an allocated string. If "*lenp" is not NULL it is | |
| 674 * set to the length of the result. | |
| 675 * Returns NULL when out of memory. | |
| 676 */ | |
| 677 char_u * | |
| 678 utf16_to_enc(short_u *str, int *lenp) | |
| 679 { | |
| 680 vimconv_T conv; | |
| 681 char_u *utf8_str = NULL, *enc_str = NULL; | |
| 682 int len_loc; | |
| 683 | |
| 684 if (lenp == NULL) | |
| 685 { | |
| 686 len_loc = (int)wcslen(str) + 1; | |
| 687 lenp = &len_loc; | |
| 688 } | |
| 689 | |
| 690 if (enc_codepage > 0) | |
| 691 { | |
|
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parents:
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diff
changeset
|
692 // We can do any UTF-16 -> CP### in one pass. |
| 4168 | 693 int length; |
| 694 | |
| 695 WideCharToMultiByte_alloc(enc_codepage, 0, str, *lenp, | |
| 696 (LPSTR *)&enc_str, &length, 0, 0); | |
| 697 *lenp = length; | |
| 698 return enc_str; | |
| 699 } | |
| 700 | |
|
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parents:
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diff
changeset
|
701 // Avoid allocating zero bytes, it generates an error message. |
| 4168 | 702 utf8_str = alloc(utf16_to_utf8(str, *lenp == 0 ? 1 : *lenp, NULL)); |
| 703 if (utf8_str != NULL) | |
| 704 { | |
| 705 *lenp = utf16_to_utf8(str, *lenp, utf8_str); | |
| 706 | |
|
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parents:
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diff
changeset
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707 // We might be called before we have p_enc set up. |
| 4168 | 708 conv.vc_type = CONV_NONE; |
| 709 convert_setup(&conv, (char_u *)"utf-8", | |
| 710 p_enc? p_enc: (char_u *)"latin1"); | |
| 711 if (conv.vc_type == CONV_NONE) | |
| 712 { | |
|
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parents:
17063
diff
changeset
|
713 // p_enc is utf-8, so we're done. |
| 4168 | 714 enc_str = utf8_str; |
| 715 } | |
| 716 else | |
| 717 { | |
| 718 enc_str = string_convert(&conv, utf8_str, lenp); | |
| 719 vim_free(utf8_str); | |
| 720 } | |
| 721 | |
| 722 convert_setup(&conv, NULL, NULL); | |
| 723 } | |
| 724 | |
| 725 return enc_str; | |
| 726 } | |
| 727 | |
| 728 /* | |
| 729 * Convert from the active codepage to 'encoding'. | |
| 730 * Input is "str[str_size]". | |
| 731 * The result is in allocated memory: "out[outlen]". With terminating NUL. | |
| 732 */ | |
| 733 void | |
|
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diff
changeset
|
734 acp_to_enc( |
|
33ba2adb6065
commit https://github.com/vim/vim/commit/b638a7be952544ceb03052c25b84224577a6494b
Christian Brabandt <cb@256bit.org>
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diff
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|
735 char_u *str, |
|
33ba2adb6065
commit https://github.com/vim/vim/commit/b638a7be952544ceb03052c25b84224577a6494b
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
736 int str_size, |
|
33ba2adb6065
commit https://github.com/vim/vim/commit/b638a7be952544ceb03052c25b84224577a6494b
Christian Brabandt <cb@256bit.org>
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diff
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|
737 char_u **out, |
|
33ba2adb6065
commit https://github.com/vim/vim/commit/b638a7be952544ceb03052c25b84224577a6494b
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parents:
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diff
changeset
|
738 int *outlen) |
| 4168 | 739 |
| 740 { | |
| 741 LPWSTR widestr; | |
| 742 | |
|
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743 MultiByteToWideChar_alloc(GetACP(), 0, (LPCSTR)str, str_size, |
|
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changeset
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744 &widestr, outlen); |
| 4168 | 745 if (widestr != NULL) |
| 746 { | |
|
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parents:
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diff
changeset
|
747 ++*outlen; // Include the 0 after the string |
| 4168 | 748 *out = utf16_to_enc((short_u *)widestr, outlen); |
| 749 vim_free(widestr); | |
| 750 } | |
| 751 } | |
| 5714 | 752 |
| 753 /* | |
| 754 * Convert from 'encoding' to the active codepage. | |
| 755 * Input is "str[str_size]". | |
| 756 * The result is in allocated memory: "out[outlen]". With terminating NUL. | |
| 757 */ | |
| 758 void | |
|
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diff
changeset
|
759 enc_to_acp( |
|
33ba2adb6065
commit https://github.com/vim/vim/commit/b638a7be952544ceb03052c25b84224577a6494b
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parents:
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diff
changeset
|
760 char_u *str, |
|
33ba2adb6065
commit https://github.com/vim/vim/commit/b638a7be952544ceb03052c25b84224577a6494b
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diff
changeset
|
761 int str_size, |
|
33ba2adb6065
commit https://github.com/vim/vim/commit/b638a7be952544ceb03052c25b84224577a6494b
Christian Brabandt <cb@256bit.org>
parents:
5714
diff
changeset
|
762 char_u **out, |
|
33ba2adb6065
commit https://github.com/vim/vim/commit/b638a7be952544ceb03052c25b84224577a6494b
Christian Brabandt <cb@256bit.org>
parents:
5714
diff
changeset
|
763 int *outlen) |
| 5714 | 764 |
| 765 { | |
| 766 LPWSTR widestr; | |
| 767 int len = str_size; | |
| 768 | |
| 769 widestr = (WCHAR *)enc_to_utf16(str, &len); | |
| 770 if (widestr != NULL) | |
| 771 { | |
| 772 WideCharToMultiByte_alloc(GetACP(), 0, widestr, len, | |
| 773 (LPSTR *)out, outlen, 0, 0); | |
| 774 vim_free(widestr); | |
| 775 } | |
| 776 } |