Mercurial > vim
annotate src/GvimExt/gvimext.cpp @ 31817:a98ef841fd01 v9.0.1241
patch 9.0.1241: Coverity warns for not checking function return value
Commit: https://github.com/vim/vim/commit/b58201035060d223d4d795ef9c3bc6b171eee9af
Author: Bram Moolenaar <Bram@vim.org>
Date: Wed Jan 25 12:27:13 2023 +0000
patch 9.0.1241: Coverity warns for not checking function return value
Problem: Coverity warns for not checking function return value.
Solution: Explicitly ignore the return value.
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Wed, 25 Jan 2023 13:30:04 +0100 |
| parents | 64dac9ff015e |
| children | 32c9b7396a75 |
| rev | line source |
|---|---|
| 10 | 1 /* vi:set ts=8 sts=4 sw=4: |
| 2 * | |
| 3 * VIM - Vi IMproved gvimext by Tianmiao Hu | |
| 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 */ | |
| 8 | |
| 9 /* | |
| 10 * gvimext is a DLL which is used for the "Edit with Vim" context menu | |
| 11 * extension. It implements a MS defined interface with the Shell. | |
| 12 * | |
| 13 * If you have any questions or any suggestions concerning gvimext, please | |
| 14 * contact Tianmiao Hu: tianmiao@acm.org. | |
| 15 */ | |
| 16 | |
| 17 #include "gvimext.h" | |
| 18 | |
| 19 static char *searchpath(char *name); | |
| 20 | |
| 21 // Always get an error while putting the following stuff to the | |
| 22 // gvimext.h file as class protected variables, give up and | |
| 23 // declare them as global stuff | |
| 24 FORMATETC fmte = {CF_HDROP, | |
| 25 (DVTARGETDEVICE FAR *)NULL, | |
| 26 DVASPECT_CONTENT, | |
| 27 -1, | |
| 28 TYMED_HGLOBAL | |
| 29 }; | |
| 30 STGMEDIUM medium; | |
| 31 HRESULT hres = 0; | |
| 32 UINT cbFiles = 0; | |
| 33 | |
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34 /* The buffers size used to be MAX_PATH (260 bytes), but that's not always |
| 415 | 35 * enough */ |
| 36 #define BUFSIZE 1100 | |
| 37 | |
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38 // The "Edit with Vim" shell extension provides these choices when |
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39 // a new instance of Gvim is selected: |
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40 // - use tabpages |
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41 // - enable diff mode |
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42 // - none of the above |
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43 #define EDIT_WITH_VIM_USE_TABPAGES (2) |
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44 #define EDIT_WITH_VIM_IN_DIFF_MODE (1) |
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45 #define EDIT_WITH_VIM_NO_OPTIONS (0) |
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46 |
| 10 | 47 // |
| 48 // Get the name of the Gvim executable to use, with the path. | |
| 49 // When "runtime" is non-zero, we were called to find the runtime directory. | |
| 415 | 50 // Returns the path in name[BUFSIZE]. It's empty when it fails. |
| 10 | 51 // |
| 52 static void | |
| 53 getGvimName(char *name, int runtime) | |
| 54 { | |
| 55 HKEY keyhandle; | |
| 56 DWORD hlen; | |
| 57 | |
| 58 // Get the location of gvim from the registry. | |
| 59 name[0] = 0; | |
| 60 if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, "Software\\Vim\\Gvim", 0, | |
| 61 KEY_READ, &keyhandle) == ERROR_SUCCESS) | |
| 62 { | |
| 415 | 63 hlen = BUFSIZE; |
| 10 | 64 if (RegQueryValueEx(keyhandle, "path", 0, NULL, (BYTE *)name, &hlen) |
| 65 != ERROR_SUCCESS) | |
| 66 name[0] = 0; | |
| 67 else | |
| 68 name[hlen] = 0; | |
| 69 RegCloseKey(keyhandle); | |
| 70 } | |
| 71 | |
| 72 // Registry didn't work, use the search path. | |
| 73 if (name[0] == 0) | |
| 1366 | 74 strcpy(name, searchpath((char *)"gvim.exe")); |
| 10 | 75 |
| 76 if (!runtime) | |
| 77 { | |
| 78 // Only when looking for the executable, not the runtime dir, we can | |
| 79 // search for the batch file or a name without a path. | |
| 80 if (name[0] == 0) | |
| 1366 | 81 strcpy(name, searchpath((char *)"gvim.bat")); |
| 10 | 82 if (name[0] == 0) |
| 83 strcpy(name, "gvim"); // finds gvim.bat or gvim.exe | |
| 84 } | |
| 85 } | |
| 86 | |
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87 static void |
| 6805 | 88 getGvimInvocation(char *name, int runtime) |
| 89 { | |
| 90 getGvimName(name, runtime); | |
| 91 // avoid that Vim tries to expand wildcards in the file names | |
| 92 strcat(name, " --literal"); | |
| 93 } | |
| 94 | |
| 95 static void | |
| 96 getGvimInvocationW(wchar_t *nameW) | |
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97 { |
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98 char *name; |
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99 |
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100 name = (char *)malloc(BUFSIZE); |
| 6805 | 101 getGvimInvocation(name, 0); |
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102 mbstowcs(nameW, name, BUFSIZE); |
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103 free(name); |
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104 } |
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105 |
| 10 | 106 // |
| 415 | 107 // Get the Vim runtime directory into buf[BUFSIZE]. |
| 10 | 108 // The result is empty when it failed. |
| 109 // When it works, the path ends in a slash or backslash. | |
| 110 // | |
| 111 static void | |
| 112 getRuntimeDir(char *buf) | |
| 113 { | |
| 114 int idx; | |
| 115 | |
| 116 getGvimName(buf, 1); | |
| 117 if (buf[0] != 0) | |
| 118 { | |
| 119 // When no path found, use the search path to expand it. | |
| 120 if (strchr(buf, '/') == NULL && strchr(buf, '\\') == NULL) | |
| 121 strcpy(buf, searchpath(buf)); | |
| 122 | |
| 123 // remove "gvim.exe" from the end | |
| 835 | 124 for (idx = (int)strlen(buf) - 1; idx >= 0; idx--) |
| 10 | 125 if (buf[idx] == '\\' || buf[idx] == '/') |
| 126 { | |
| 127 buf[idx + 1] = 0; | |
| 128 break; | |
| 129 } | |
| 130 } | |
| 131 } | |
| 132 | |
| 6805 | 133 HBITMAP IconToBitmap(HICON hIcon, HBRUSH hBackground, int width, int height) |
| 134 { | |
| 135 HDC hDC = GetDC(NULL); | |
| 136 HDC hMemDC = CreateCompatibleDC(hDC); | |
| 137 HBITMAP hMemBmp = CreateCompatibleBitmap(hDC, width, height); | |
| 138 HBITMAP hResultBmp = NULL; | |
| 139 HGDIOBJ hOrgBMP = SelectObject(hMemDC, hMemBmp); | |
| 140 | |
| 141 DrawIconEx(hMemDC, 0, 0, hIcon, width, height, 0, hBackground, DI_NORMAL); | |
| 142 | |
| 143 hResultBmp = hMemBmp; | |
| 144 hMemBmp = NULL; | |
| 145 | |
| 146 SelectObject(hMemDC, hOrgBMP); | |
| 147 DeleteDC(hMemDC); | |
| 148 ReleaseDC(NULL, hDC); | |
| 149 DestroyIcon(hIcon); | |
| 150 return hResultBmp; | |
| 151 } | |
| 152 | |
| 10 | 153 // |
| 154 // GETTEXT: translated messages and menu entries | |
| 155 // | |
| 156 #ifndef FEAT_GETTEXT | |
| 157 # define _(x) x | |
| 158 #else | |
| 159 # define _(x) (*dyn_libintl_gettext)(x) | |
| 160 # define VIMPACKAGE "vim" | |
| 161 # ifndef GETTEXT_DLL | |
| 162 # define GETTEXT_DLL "libintl.dll" | |
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163 # define GETTEXT_DLL_ALT "libintl-8.dll" |
| 10 | 164 # endif |
| 165 | |
| 166 // Dummy functions | |
| 167 static char *null_libintl_gettext(const char *); | |
| 168 static char *null_libintl_textdomain(const char *); | |
| 169 static char *null_libintl_bindtextdomain(const char *, const char *); | |
| 170 static int dyn_libintl_init(char *dir); | |
| 171 static void dyn_libintl_end(void); | |
| 172 | |
| 173 static HINSTANCE hLibintlDLL = 0; | |
| 174 static char *(*dyn_libintl_gettext)(const char *) = null_libintl_gettext; | |
| 175 static char *(*dyn_libintl_textdomain)(const char *) = null_libintl_textdomain; | |
| 176 static char *(*dyn_libintl_bindtextdomain)(const char *, const char *) | |
| 177 = null_libintl_bindtextdomain; | |
| 178 | |
| 179 // | |
| 180 // Attempt to load libintl.dll. If it doesn't work, use dummy functions. | |
| 181 // "dir" is the directory where the libintl.dll might be. | |
| 182 // Return 1 for success, 0 for failure. | |
| 183 // | |
| 184 static int | |
| 185 dyn_libintl_init(char *dir) | |
| 186 { | |
| 187 int i; | |
| 188 static struct | |
| 189 { | |
| 190 char *name; | |
| 191 FARPROC *ptr; | |
| 192 } libintl_entry[] = | |
| 193 { | |
| 1366 | 194 {(char *)"gettext", (FARPROC*)&dyn_libintl_gettext}, |
| 195 {(char *)"textdomain", (FARPROC*)&dyn_libintl_textdomain}, | |
| 196 {(char *)"bindtextdomain", (FARPROC*)&dyn_libintl_bindtextdomain}, | |
| 10 | 197 {NULL, NULL} |
| 198 }; | |
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199 DWORD len, len2; |
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200 LPWSTR buf = NULL; |
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201 LPWSTR buf2 = NULL; |
| 10 | 202 |
| 203 // No need to initialize twice. | |
| 204 if (hLibintlDLL) | |
| 205 return 1; | |
| 206 | |
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207 // Load gettext library from $VIMRUNTIME\GvimExt{64,32} directory. |
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208 // Add the directory to $PATH temporarily. |
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209 len = GetEnvironmentVariableW(L"PATH", NULL, 0); |
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210 len2 = MAX_PATH + 1 + len; |
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211 buf = (LPWSTR)malloc(len * sizeof(WCHAR)); |
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212 buf2 = (LPWSTR)malloc(len2 * sizeof(WCHAR)); |
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213 if (buf != NULL && buf2 != NULL) |
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214 { |
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215 GetEnvironmentVariableW(L"PATH", buf, len); |
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216 # ifdef _WIN64 |
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217 _snwprintf(buf2, len2, L"%S\\GvimExt64;%s", dir, buf); |
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218 # else |
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219 _snwprintf(buf2, len2, L"%S\\GvimExt32;%s", dir, buf); |
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220 # endif |
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221 SetEnvironmentVariableW(L"PATH", buf2); |
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222 hLibintlDLL = LoadLibrary(GETTEXT_DLL); |
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223 # ifdef GETTEXT_DLL_ALT |
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224 if (!hLibintlDLL) |
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225 hLibintlDLL = LoadLibrary(GETTEXT_DLL_ALT); |
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226 # endif |
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227 SetEnvironmentVariableW(L"PATH", buf); |
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228 } |
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229 free(buf); |
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230 free(buf2); |
| 10 | 231 if (!hLibintlDLL) |
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232 return 0; |
| 10 | 233 |
| 234 // Get the addresses of the functions we need. | |
| 235 for (i = 0; libintl_entry[i].name != NULL | |
| 236 && libintl_entry[i].ptr != NULL; ++i) | |
| 237 { | |
| 238 if ((*libintl_entry[i].ptr = GetProcAddress(hLibintlDLL, | |
| 239 libintl_entry[i].name)) == NULL) | |
| 240 { | |
| 241 dyn_libintl_end(); | |
| 242 return 0; | |
| 243 } | |
| 244 } | |
| 245 return 1; | |
| 246 } | |
| 247 | |
| 248 static void | |
| 249 dyn_libintl_end(void) | |
| 250 { | |
| 251 if (hLibintlDLL) | |
| 252 FreeLibrary(hLibintlDLL); | |
| 253 hLibintlDLL = NULL; | |
| 254 dyn_libintl_gettext = null_libintl_gettext; | |
| 255 dyn_libintl_textdomain = null_libintl_textdomain; | |
| 256 dyn_libintl_bindtextdomain = null_libintl_bindtextdomain; | |
| 257 } | |
| 258 | |
| 259 static char * | |
| 260 null_libintl_gettext(const char *msgid) | |
| 261 { | |
| 262 return (char *)msgid; | |
| 263 } | |
| 264 | |
| 265 static char * | |
| 1686 | 266 null_libintl_bindtextdomain(const char * /* domainname */, const char * /* dirname */) |
| 10 | 267 { |
| 268 return NULL; | |
| 269 } | |
| 270 | |
| 271 static char * | |
| 1686 | 272 null_libintl_textdomain(const char* /* domainname */) |
| 10 | 273 { |
| 274 return NULL; | |
| 275 } | |
| 276 | |
| 277 // | |
| 278 // Setup for translating strings. | |
| 279 // | |
| 280 static void | |
| 281 dyn_gettext_load(void) | |
| 282 { | |
| 415 | 283 char szBuff[BUFSIZE]; |
| 10 | 284 DWORD len; |
| 285 | |
| 286 // Try to locate the runtime files. The path is used to find libintl.dll | |
| 287 // and the vim.mo files. | |
| 288 getRuntimeDir(szBuff); | |
| 289 if (szBuff[0] != 0) | |
| 290 { | |
| 835 | 291 len = (DWORD)strlen(szBuff); |
| 10 | 292 if (dyn_libintl_init(szBuff)) |
| 293 { | |
| 294 strcpy(szBuff + len, "lang"); | |
| 295 | |
| 296 (*dyn_libintl_bindtextdomain)(VIMPACKAGE, szBuff); | |
| 297 (*dyn_libintl_textdomain)(VIMPACKAGE); | |
| 298 } | |
| 299 } | |
| 300 } | |
| 301 | |
| 302 static void | |
| 303 dyn_gettext_free(void) | |
| 304 { | |
| 305 dyn_libintl_end(); | |
| 306 } | |
| 307 #endif // FEAT_GETTEXT | |
| 308 | |
| 309 // | |
| 310 // Global variables | |
| 311 // | |
| 312 UINT g_cRefThisDll = 0; // Reference count of this DLL. | |
| 313 HINSTANCE g_hmodThisDll = NULL; // Handle to this DLL itself. | |
| 314 | |
| 315 | |
| 316 //--------------------------------------------------------------------------- | |
| 317 // DllMain | |
| 318 //--------------------------------------------------------------------------- | |
| 319 extern "C" int APIENTRY | |
| 1686 | 320 DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID /* lpReserved */) |
| 10 | 321 { |
| 322 switch (dwReason) | |
| 323 { | |
| 324 case DLL_PROCESS_ATTACH: | |
| 325 // Extension DLL one-time initialization | |
| 326 g_hmodThisDll = hInstance; | |
| 327 break; | |
| 328 | |
| 329 case DLL_PROCESS_DETACH: | |
| 330 break; | |
| 331 } | |
| 332 | |
| 333 return 1; // ok | |
| 334 } | |
| 335 | |
| 336 static void | |
| 337 inc_cRefThisDLL() | |
| 338 { | |
| 339 #ifdef FEAT_GETTEXT | |
|
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340 if (g_cRefThisDll == 0) |
| 10 | 341 dyn_gettext_load(); |
| 342 #endif | |
| 343 InterlockedIncrement((LPLONG)&g_cRefThisDll); | |
| 344 } | |
| 345 | |
| 346 static void | |
| 347 dec_cRefThisDLL() | |
| 348 { | |
| 349 #ifdef FEAT_GETTEXT | |
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350 if (InterlockedDecrement((LPLONG)&g_cRefThisDll) == 0) |
| 10 | 351 dyn_gettext_free(); |
| 352 #else | |
| 353 InterlockedDecrement((LPLONG)&g_cRefThisDll); | |
| 354 #endif | |
| 355 } | |
| 356 | |
| 357 //--------------------------------------------------------------------------- | |
| 358 // DllCanUnloadNow | |
| 359 //--------------------------------------------------------------------------- | |
| 360 | |
| 361 STDAPI DllCanUnloadNow(void) | |
| 362 { | |
| 363 return (g_cRefThisDll == 0 ? S_OK : S_FALSE); | |
| 364 } | |
| 365 | |
| 366 STDAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppvOut) | |
| 367 { | |
| 368 *ppvOut = NULL; | |
| 369 | |
| 370 if (IsEqualIID(rclsid, CLSID_ShellExtension)) | |
| 371 { | |
| 372 CShellExtClassFactory *pcf = new CShellExtClassFactory; | |
| 373 | |
| 374 return pcf->QueryInterface(riid, ppvOut); | |
| 375 } | |
| 376 | |
| 377 return CLASS_E_CLASSNOTAVAILABLE; | |
| 378 } | |
| 379 | |
| 380 CShellExtClassFactory::CShellExtClassFactory() | |
| 381 { | |
| 382 m_cRef = 0L; | |
| 383 | |
| 384 inc_cRefThisDLL(); | |
| 385 } | |
| 386 | |
| 387 CShellExtClassFactory::~CShellExtClassFactory() | |
| 388 { | |
| 389 dec_cRefThisDLL(); | |
| 390 } | |
| 391 | |
| 392 STDMETHODIMP CShellExtClassFactory::QueryInterface(REFIID riid, | |
| 393 LPVOID FAR *ppv) | |
| 394 { | |
| 395 *ppv = NULL; | |
| 396 | |
| 6805 | 397 // any interface on this object is the object pointer |
| 10 | 398 |
| 399 if (IsEqualIID(riid, IID_IUnknown) || IsEqualIID(riid, IID_IClassFactory)) | |
| 400 { | |
| 401 *ppv = (LPCLASSFACTORY)this; | |
| 402 | |
| 403 AddRef(); | |
| 404 | |
| 405 return NOERROR; | |
| 406 } | |
| 407 | |
| 408 return E_NOINTERFACE; | |
| 409 } | |
| 410 | |
| 411 STDMETHODIMP_(ULONG) CShellExtClassFactory::AddRef() | |
| 412 { | |
| 413 return InterlockedIncrement((LPLONG)&m_cRef); | |
| 414 } | |
| 415 | |
| 416 STDMETHODIMP_(ULONG) CShellExtClassFactory::Release() | |
| 417 { | |
| 418 if (InterlockedDecrement((LPLONG)&m_cRef)) | |
| 419 return m_cRef; | |
| 420 | |
| 421 delete this; | |
| 422 | |
| 423 return 0L; | |
| 424 } | |
| 425 | |
| 426 STDMETHODIMP CShellExtClassFactory::CreateInstance(LPUNKNOWN pUnkOuter, | |
| 427 REFIID riid, | |
| 428 LPVOID *ppvObj) | |
| 429 { | |
| 430 *ppvObj = NULL; | |
| 431 | |
| 432 // Shell extensions typically don't support aggregation (inheritance) | |
| 433 | |
| 434 if (pUnkOuter) | |
| 435 return CLASS_E_NOAGGREGATION; | |
| 436 | |
| 437 // Create the main shell extension object. The shell will then call | |
| 438 // QueryInterface with IID_IShellExtInit--this is how shell extensions are | |
| 439 // initialized. | |
| 440 | |
| 6805 | 441 LPCSHELLEXT pShellExt = new CShellExt(); // create the CShellExt object |
| 10 | 442 |
| 443 if (NULL == pShellExt) | |
| 444 return E_OUTOFMEMORY; | |
| 445 | |
| 446 return pShellExt->QueryInterface(riid, ppvObj); | |
| 447 } | |
| 448 | |
| 449 | |
| 1686 | 450 STDMETHODIMP CShellExtClassFactory::LockServer(BOOL /* fLock */) |
| 10 | 451 { |
| 452 return NOERROR; | |
| 453 } | |
| 454 | |
| 455 // *********************** CShellExt ************************* | |
| 456 CShellExt::CShellExt() | |
| 457 { | |
| 458 m_cRef = 0L; | |
| 459 m_pDataObj = NULL; | |
| 460 | |
| 461 inc_cRefThisDLL(); | |
| 6805 | 462 |
| 463 LoadMenuIcon(); | |
| 10 | 464 } |
| 465 | |
| 466 CShellExt::~CShellExt() | |
| 467 { | |
| 468 if (m_pDataObj) | |
| 469 m_pDataObj->Release(); | |
| 470 | |
| 471 dec_cRefThisDLL(); | |
| 6805 | 472 |
| 473 if (m_hVimIconBitmap) | |
| 474 DeleteObject(m_hVimIconBitmap); | |
| 10 | 475 } |
| 476 | |
| 477 STDMETHODIMP CShellExt::QueryInterface(REFIID riid, LPVOID FAR *ppv) | |
| 478 { | |
| 479 *ppv = NULL; | |
| 480 | |
| 481 if (IsEqualIID(riid, IID_IShellExtInit) || IsEqualIID(riid, IID_IUnknown)) | |
| 482 { | |
| 483 *ppv = (LPSHELLEXTINIT)this; | |
| 484 } | |
| 485 else if (IsEqualIID(riid, IID_IContextMenu)) | |
| 486 { | |
| 487 *ppv = (LPCONTEXTMENU)this; | |
| 488 } | |
| 489 | |
| 490 if (*ppv) | |
| 491 { | |
| 492 AddRef(); | |
| 493 | |
| 494 return NOERROR; | |
| 495 } | |
| 496 | |
| 497 return E_NOINTERFACE; | |
| 498 } | |
| 499 | |
| 500 STDMETHODIMP_(ULONG) CShellExt::AddRef() | |
| 501 { | |
| 502 return InterlockedIncrement((LPLONG)&m_cRef); | |
| 503 } | |
| 504 | |
| 505 STDMETHODIMP_(ULONG) CShellExt::Release() | |
| 506 { | |
| 507 | |
| 508 if (InterlockedDecrement((LPLONG)&m_cRef)) | |
| 509 return m_cRef; | |
| 510 | |
| 511 delete this; | |
| 512 | |
| 513 return 0L; | |
| 514 } | |
| 515 | |
| 516 | |
| 517 // | |
| 518 // FUNCTION: CShellExt::Initialize(LPCITEMIDLIST, LPDATAOBJECT, HKEY) | |
| 519 // | |
| 520 // PURPOSE: Called by the shell when initializing a context menu or property | |
| 521 // sheet extension. | |
| 522 // | |
| 523 // PARAMETERS: | |
| 524 // pIDFolder - Specifies the parent folder | |
| 4352 | 525 // pDataObj - Specifies the set of items selected in that folder. |
| 10 | 526 // hRegKey - Specifies the type of the focused item in the selection. |
| 527 // | |
| 528 // RETURN VALUE: | |
| 529 // | |
| 530 // NOERROR in all cases. | |
| 531 // | |
| 532 // COMMENTS: Note that at the time this function is called, we don't know | |
| 533 // (or care) what type of shell extension is being initialized. | |
| 534 // It could be a context menu or a property sheet. | |
| 535 // | |
| 536 | |
| 1686 | 537 STDMETHODIMP CShellExt::Initialize(LPCITEMIDLIST /* pIDFolder */, |
| 10 | 538 LPDATAOBJECT pDataObj, |
| 1686 | 539 HKEY /* hRegKey */) |
| 10 | 540 { |
| 541 // Initialize can be called more than once | |
| 542 if (m_pDataObj) | |
| 543 m_pDataObj->Release(); | |
| 544 | |
| 545 // duplicate the object pointer and registry handle | |
| 546 | |
| 547 if (pDataObj) | |
| 548 { | |
| 549 m_pDataObj = pDataObj; | |
| 550 pDataObj->AddRef(); | |
| 551 } | |
| 552 | |
| 553 return NOERROR; | |
| 554 } | |
| 555 | |
| 556 | |
| 557 // | |
| 558 // FUNCTION: CShellExt::QueryContextMenu(HMENU, UINT, UINT, UINT, UINT) | |
| 559 // | |
| 560 // PURPOSE: Called by the shell just before the context menu is displayed. | |
| 561 // This is where you add your specific menu items. | |
| 562 // | |
| 563 // PARAMETERS: | |
| 564 // hMenu - Handle to the context menu | |
| 565 // indexMenu - Index of where to begin inserting menu items | |
| 566 // idCmdFirst - Lowest value for new menu ID's | |
| 567 // idCmtLast - Highest value for new menu ID's | |
| 568 // uFlags - Specifies the context of the menu event | |
| 569 // | |
| 570 // RETURN VALUE: | |
| 571 // | |
| 572 // | |
| 573 // COMMENTS: | |
| 574 // | |
| 575 | |
| 576 STDMETHODIMP CShellExt::QueryContextMenu(HMENU hMenu, | |
| 577 UINT indexMenu, | |
| 578 UINT idCmdFirst, | |
| 1686 | 579 UINT /* idCmdLast */, |
| 580 UINT /* uFlags */) | |
| 10 | 581 { |
| 582 UINT idCmd = idCmdFirst; | |
| 583 | |
| 584 hres = m_pDataObj->GetData(&fmte, &medium); | |
| 585 if (medium.hGlobal) | |
| 586 cbFiles = DragQueryFile((HDROP)medium.hGlobal, (UINT)-1, 0, 0); | |
| 587 | |
| 588 // InsertMenu(hMenu, indexMenu++, MF_SEPARATOR|MF_BYPOSITION, 0, NULL); | |
| 589 | |
| 590 // Initialize m_cntOfHWnd to 0 | |
| 591 m_cntOfHWnd = 0; | |
| 2972 | 592 |
| 593 HKEY keyhandle; | |
| 594 bool showExisting = true; | |
| 6805 | 595 bool showIcons = true; |
| 2972 | 596 |
| 597 // Check whether "Edit with existing Vim" entries are disabled. | |
| 598 if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, "Software\\Vim\\Gvim", 0, | |
| 599 KEY_READ, &keyhandle) == ERROR_SUCCESS) | |
| 600 { | |
| 601 if (RegQueryValueEx(keyhandle, "DisableEditWithExisting", 0, NULL, | |
| 602 NULL, NULL) == ERROR_SUCCESS) | |
| 603 showExisting = false; | |
| 6805 | 604 if (RegQueryValueEx(keyhandle, "DisableContextMenuIcons", 0, NULL, |
| 605 NULL, NULL) == ERROR_SUCCESS) | |
| 606 showIcons = false; | |
| 2972 | 607 RegCloseKey(keyhandle); |
| 608 } | |
| 609 | |
| 610 // Retrieve all the vim instances, unless disabled. | |
| 611 if (showExisting) | |
| 612 EnumWindows(EnumWindowsProc, (LPARAM)this); | |
| 10 | 613 |
| 6805 | 614 MENUITEMINFO mii = { sizeof(MENUITEMINFO) }; |
| 615 mii.fMask = MIIM_STRING | MIIM_ID; | |
| 616 if (showIcons) | |
| 617 { | |
| 618 mii.fMask |= MIIM_BITMAP; | |
| 619 mii.hbmpItem = m_hVimIconBitmap; | |
| 620 } | |
| 621 | |
| 10 | 622 if (cbFiles > 1) |
| 623 { | |
| 6805 | 624 mii.wID = idCmd++; |
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625 mii.dwTypeData = _("Edit with Vim using &tabpages"); |
| 6805 | 626 mii.cch = lstrlen(mii.dwTypeData); |
| 627 InsertMenuItem(hMenu, indexMenu++, TRUE, &mii); | |
| 10 | 628 |
| 6805 | 629 mii.wID = idCmd++; |
| 630 mii.dwTypeData = _("Edit with single &Vim"); | |
| 631 mii.cch = lstrlen(mii.dwTypeData); | |
| 632 InsertMenuItem(hMenu, indexMenu++, TRUE, &mii); | |
| 10 | 633 |
| 634 if (cbFiles <= 4) | |
| 635 { | |
| 636 // Can edit up to 4 files in diff mode | |
| 6805 | 637 mii.wID = idCmd++; |
| 638 mii.dwTypeData = _("Diff with Vim"); | |
| 639 mii.cch = lstrlen(mii.dwTypeData); | |
| 640 InsertMenuItem(hMenu, indexMenu++, TRUE, &mii); | |
| 10 | 641 m_edit_existing_off = 3; |
| 642 } | |
| 643 else | |
| 644 m_edit_existing_off = 2; | |
| 645 | |
| 646 } | |
| 647 else | |
| 648 { | |
| 6805 | 649 mii.wID = idCmd++; |
| 650 mii.dwTypeData = _("Edit with &Vim"); | |
| 651 mii.cch = lstrlen(mii.dwTypeData); | |
| 652 InsertMenuItem(hMenu, indexMenu++, TRUE, &mii); | |
| 10 | 653 m_edit_existing_off = 1; |
| 654 } | |
| 655 | |
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656 HMENU hSubMenu = NULL; |
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657 if (m_cntOfHWnd > 1) |
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658 { |
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659 hSubMenu = CreatePopupMenu(); |
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660 mii.fMask |= MIIM_SUBMENU; |
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661 mii.wID = idCmd; |
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662 mii.dwTypeData = _("Edit with existing Vim"); |
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663 mii.cch = lstrlen(mii.dwTypeData); |
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664 mii.hSubMenu = hSubMenu; |
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665 InsertMenuItem(hMenu, indexMenu++, TRUE, &mii); |
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666 mii.fMask = mii.fMask & ~MIIM_SUBMENU; |
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667 mii.hSubMenu = NULL; |
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668 } |
| 10 | 669 // Now display all the vim instances |
| 670 for (int i = 0; i < m_cntOfHWnd; i++) | |
| 671 { | |
| 415 | 672 char title[BUFSIZE]; |
| 673 char temp[BUFSIZE]; | |
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674 int index; |
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675 HMENU hmenu; |
| 10 | 676 |
| 677 // Obtain window title, continue if can not | |
| 415 | 678 if (GetWindowText(m_hWnd[i], title, BUFSIZE - 1) == 0) |
| 10 | 679 continue; |
| 680 // Truncate the title before the path, keep the file name | |
| 681 char *pos = strchr(title, '('); | |
| 682 if (pos != NULL) | |
| 683 { | |
| 684 if (pos > title && pos[-1] == ' ') | |
| 685 --pos; | |
| 686 *pos = 0; | |
| 687 } | |
| 688 // Now concatenate | |
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689 if (m_cntOfHWnd > 1) |
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690 temp[0] = '\0'; |
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691 else |
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692 { |
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693 strncpy(temp, _("Edit with existing Vim - "), BUFSIZE - 1); |
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694 temp[BUFSIZE - 1] = '\0'; |
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695 } |
| 1953 | 696 strncat(temp, title, BUFSIZE - 1 - strlen(temp)); |
| 697 temp[BUFSIZE - 1] = '\0'; | |
| 6805 | 698 |
| 699 mii.wID = idCmd++; | |
| 700 mii.dwTypeData = temp; | |
| 701 mii.cch = lstrlen(mii.dwTypeData); | |
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702 if (m_cntOfHWnd > 1) |
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703 { |
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704 hmenu = hSubMenu; |
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705 index = i; |
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706 } |
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707 else |
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708 { |
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709 hmenu = hMenu; |
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710 index = indexMenu++; |
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711 } |
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712 InsertMenuItem(hmenu, index, TRUE, &mii); |
| 10 | 713 } |
| 714 // InsertMenu(hMenu, indexMenu++, MF_SEPARATOR|MF_BYPOSITION, 0, NULL); | |
| 715 | |
| 716 // Must return number of menu items we added. | |
| 717 return ResultFromShort(idCmd-idCmdFirst); | |
| 718 } | |
| 719 | |
| 720 // | |
| 721 // FUNCTION: CShellExt::InvokeCommand(LPCMINVOKECOMMANDINFO) | |
| 722 // | |
| 723 // PURPOSE: Called by the shell after the user has selected on of the | |
| 724 // menu items that was added in QueryContextMenu(). | |
| 725 // | |
| 726 // PARAMETERS: | |
| 727 // lpcmi - Pointer to an CMINVOKECOMMANDINFO structure | |
| 728 // | |
| 729 // RETURN VALUE: | |
| 730 // | |
| 731 // | |
| 732 // COMMENTS: | |
| 733 // | |
| 734 | |
| 735 STDMETHODIMP CShellExt::InvokeCommand(LPCMINVOKECOMMANDINFO lpcmi) | |
| 736 { | |
| 737 HRESULT hr = E_INVALIDARG; | |
|
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738 int gvimExtraOptions; |
| 10 | 739 |
| 740 // If HIWORD(lpcmi->lpVerb) then we have been called programmatically | |
| 741 // and lpVerb is a command that should be invoked. Otherwise, the shell | |
| 742 // has called us, and LOWORD(lpcmi->lpVerb) is the menu ID the user has | |
| 743 // selected. Actually, it's (menu ID - idCmdFirst) from QueryContextMenu(). | |
| 744 if (!HIWORD(lpcmi->lpVerb)) | |
| 745 { | |
| 746 UINT idCmd = LOWORD(lpcmi->lpVerb); | |
| 747 | |
| 748 if (idCmd >= m_edit_existing_off) | |
| 749 { | |
| 750 // Existing with vim instance | |
| 751 hr = PushToWindow(lpcmi->hwnd, | |
| 752 lpcmi->lpDirectory, | |
| 753 lpcmi->lpVerb, | |
| 754 lpcmi->lpParameters, | |
| 755 lpcmi->nShow, | |
| 756 idCmd - m_edit_existing_off); | |
| 757 } | |
| 758 else | |
| 759 { | |
| 760 switch (idCmd) | |
| 761 { | |
| 762 case 0: | |
|
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763 gvimExtraOptions = EDIT_WITH_VIM_USE_TABPAGES; |
| 10 | 764 break; |
| 765 case 1: | |
|
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|
766 gvimExtraOptions = EDIT_WITH_VIM_NO_OPTIONS; |
| 10 | 767 break; |
| 768 case 2: | |
|
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769 gvimExtraOptions = EDIT_WITH_VIM_IN_DIFF_MODE; |
| 10 | 770 break; |
|
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771 default: |
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|
772 // If execution reaches this point we likely have an |
|
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773 // inconsistency between the code that setup the menus |
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774 // and this code that determines what the user |
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775 // selected. This should be detected and fixed during |
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776 // development. |
|
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777 return E_FAIL; |
| 10 | 778 } |
|
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779 |
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|
780 LPCMINVOKECOMMANDINFOEX lpcmiex = (LPCMINVOKECOMMANDINFOEX)lpcmi; |
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781 LPCWSTR currentDirectory = lpcmi->cbSize == sizeof(CMINVOKECOMMANDINFOEX) ? lpcmiex->lpDirectoryW : NULL; |
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782 |
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|
783 hr = InvokeSingleGvim(lpcmi->hwnd, |
|
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784 currentDirectory, |
|
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785 lpcmi->lpVerb, |
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786 lpcmi->lpParameters, |
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787 lpcmi->nShow, |
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|
788 gvimExtraOptions); |
| 10 | 789 } |
| 790 } | |
| 791 return hr; | |
| 792 } | |
| 793 | |
| 1686 | 794 STDMETHODIMP CShellExt::PushToWindow(HWND /* hParent */, |
| 795 LPCSTR /* pszWorkingDir */, | |
| 796 LPCSTR /* pszCmd */, | |
| 797 LPCSTR /* pszParam */, | |
| 798 int /* iShowCmd */, | |
| 10 | 799 int idHWnd) |
| 800 { | |
| 801 HWND hWnd = m_hWnd[idHWnd]; | |
| 802 | |
| 803 // Show and bring vim instance to foreground | |
| 804 if (IsIconic(hWnd) != 0) | |
| 805 ShowWindow(hWnd, SW_RESTORE); | |
| 806 else | |
| 807 ShowWindow(hWnd, SW_SHOW); | |
| 808 SetForegroundWindow(hWnd); | |
| 809 | |
| 810 // Post the selected files to the vim instance | |
| 811 PostMessage(hWnd, WM_DROPFILES, (WPARAM)medium.hGlobal, 0); | |
| 812 | |
| 813 return NOERROR; | |
| 814 } | |
| 815 | |
| 1686 | 816 STDMETHODIMP CShellExt::GetCommandString(UINT_PTR /* idCmd */, |
| 10 | 817 UINT uFlags, |
| 1686 | 818 UINT FAR * /* reserved */, |
| 10 | 819 LPSTR pszName, |
| 820 UINT cchMax) | |
| 821 { | |
| 822 if (uFlags == GCS_HELPTEXT && cchMax > 35) | |
| 823 lstrcpy(pszName, _("Edits the selected file(s) with Vim")); | |
| 824 | |
| 825 return NOERROR; | |
| 826 } | |
| 827 | |
| 828 BOOL CALLBACK CShellExt::EnumWindowsProc(HWND hWnd, LPARAM lParam) | |
| 829 { | |
| 415 | 830 char temp[BUFSIZE]; |
| 10 | 831 |
| 832 // First do a bunch of check | |
| 833 // No invisible window | |
| 834 if (!IsWindowVisible(hWnd)) return TRUE; | |
| 835 // No child window ??? | |
| 836 // if (GetParent(hWnd)) return TRUE; | |
| 837 // Class name should be Vim, if failed to get class name, return | |
| 838 if (GetClassName(hWnd, temp, sizeof(temp)) == 0) | |
| 839 return TRUE; | |
| 840 // Compare class name to that of vim, if not, return | |
| 841 if (_strnicmp(temp, "vim", sizeof("vim")) != 0) | |
| 842 return TRUE; | |
| 843 // First check if the number of vim instance exceeds MAX_HWND | |
| 844 CShellExt *cs = (CShellExt*) lParam; | |
| 845 if (cs->m_cntOfHWnd >= MAX_HWND) return TRUE; | |
| 846 // Now we get the vim window, put it into some kind of array | |
| 847 cs->m_hWnd[cs->m_cntOfHWnd] = hWnd; | |
| 848 cs->m_cntOfHWnd ++; | |
| 849 | |
| 850 return TRUE; // continue enumeration (otherwise this would be false) | |
| 851 } | |
| 852 | |
| 6805 | 853 BOOL CShellExt::LoadMenuIcon() |
| 854 { | |
| 855 char vimExeFile[BUFSIZE]; | |
| 856 getGvimName(vimExeFile, 1); | |
| 857 if (vimExeFile[0] == '\0') | |
| 858 return FALSE; | |
| 859 HICON hVimIcon; | |
| 860 if (ExtractIconEx(vimExeFile, 0, NULL, &hVimIcon, 1) == 0) | |
| 861 return FALSE; | |
| 862 m_hVimIconBitmap = IconToBitmap(hVimIcon, | |
| 863 GetSysColorBrush(COLOR_MENU), | |
| 864 GetSystemMetrics(SM_CXSMICON), | |
| 865 GetSystemMetrics(SM_CYSMICON)); | |
| 866 return TRUE; | |
| 867 } | |
| 868 | |
| 10 | 869 static char * |
| 870 searchpath(char *name) | |
| 871 { | |
| 415 | 872 static char widename[2 * BUFSIZE]; |
| 873 static char location[2 * BUFSIZE + 2]; | |
| 10 | 874 |
| 875 // There appears to be a bug in FindExecutableA() on Windows NT. | |
| 876 // Use FindExecutableW() instead... | |
|
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changeset
|
877 MultiByteToWideChar(CP_ACP, 0, (LPCSTR)name, -1, |
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878 (LPWSTR)widename, BUFSIZE); |
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879 if (FindExecutableW((LPCWSTR)widename, (LPCWSTR)"", |
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880 (LPWSTR)location) > (HINSTANCE)32) |
| 10 | 881 { |
|
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882 WideCharToMultiByte(CP_ACP, 0, (LPWSTR)location, -1, |
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883 (LPSTR)widename, 2 * BUFSIZE, NULL, NULL); |
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884 return widename; |
| 10 | 885 } |
| 1366 | 886 return (char *)""; |
| 10 | 887 } |
| 888 | |
| 889 | |
| 890 STDMETHODIMP CShellExt::InvokeSingleGvim(HWND hParent, | |
|
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891 LPCWSTR workingDir, |
| 1686 | 892 LPCSTR /* pszCmd */, |
| 893 LPCSTR /* pszParam */, | |
| 894 int /* iShowCmd */, | |
|
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895 int gvimExtraOptions) |
| 10 | 896 { |
|
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897 wchar_t m_szFileUserClickedOn[BUFSIZE]; |
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898 wchar_t *cmdStrW; |
| 10 | 899 size_t cmdlen; |
| 900 size_t len; | |
| 901 UINT i; | |
| 902 | |
| 415 | 903 cmdlen = BUFSIZE; |
|
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904 cmdStrW = (wchar_t *) malloc(cmdlen * sizeof(wchar_t)); |
|
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905 if (cmdStrW == NULL) |
|
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|
906 return E_FAIL; |
| 6805 | 907 getGvimInvocationW(cmdStrW); |
|
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|
908 |
|
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909 if (gvimExtraOptions == EDIT_WITH_VIM_IN_DIFF_MODE) |
|
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910 wcscat(cmdStrW, L" -d"); |
|
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911 else if (gvimExtraOptions == EDIT_WITH_VIM_USE_TABPAGES) |
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912 wcscat(cmdStrW, L" -p"); |
| 10 | 913 for (i = 0; i < cbFiles; i++) |
| 914 { | |
|
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915 DragQueryFileW((HDROP)medium.hGlobal, |
| 10 | 916 i, |
| 917 m_szFileUserClickedOn, | |
| 918 sizeof(m_szFileUserClickedOn)); | |
| 919 | |
|
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920 len = wcslen(cmdStrW) + wcslen(m_szFileUserClickedOn) + 4; |
| 10 | 921 if (len > cmdlen) |
| 922 { | |
| 415 | 923 cmdlen = len + BUFSIZE; |
|
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|
924 wchar_t *cmdStrW_new = (wchar_t *)realloc(cmdStrW, cmdlen * sizeof(wchar_t)); |
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925 if (cmdStrW_new == NULL) |
|
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926 { |
|
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|
927 free(cmdStrW); |
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928 return E_FAIL; |
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929 } |
|
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930 cmdStrW = cmdStrW_new; |
| 10 | 931 } |
|
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932 wcscat(cmdStrW, L" \""); |
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933 wcscat(cmdStrW, m_szFileUserClickedOn); |
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934 wcscat(cmdStrW, L"\""); |
| 10 | 935 } |
| 936 | |
|
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|
937 STARTUPINFOW si; |
| 10 | 938 PROCESS_INFORMATION pi; |
| 939 | |
| 940 ZeroMemory(&si, sizeof(si)); | |
| 941 si.cb = sizeof(si); | |
| 942 | |
| 943 // Start the child process. | |
|
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944 if (!CreateProcessW(NULL, // No module name (use command line). |
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945 cmdStrW, // Command line. |
| 10 | 946 NULL, // Process handle not inheritable. |
| 947 NULL, // Thread handle not inheritable. | |
| 948 FALSE, // Set handle inheritance to FALSE. | |
|
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949 0, // No creation flags. |
|
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950 NULL, // Use parent's environment block. |
|
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|
951 workingDir, // Use parent's starting directory. |
| 10 | 952 &si, // Pointer to STARTUPINFO structure. |
| 953 &pi) // Pointer to PROCESS_INFORMATION structure. | |
| 954 ) | |
| 955 { | |
| 956 MessageBox( | |
| 957 hParent, | |
| 958 _("Error creating process: Check if gvim is in your path!"), | |
| 959 _("gvimext.dll error"), | |
| 960 MB_OK); | |
| 961 } | |
| 962 else | |
| 963 { | |
| 964 CloseHandle(pi.hProcess); | |
| 965 CloseHandle(pi.hThread); | |
| 966 } | |
|
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|
967 free(cmdStrW); |
| 10 | 968 |
| 969 return NOERROR; | |
| 970 } |