1 #include "SkOSFile.h" 2 3 #ifdef SK_BUILD_FOR_WIN 4 5 static uint16_t* concat_to_16(const char src[], const char suffix[]) 6 { 7 size_t i, len = strlen(src); 8 size_t len2 = 3 + (suffix ? strlen(suffix) : 0); 9 uint16_t* dst = (uint16_t*)sk_malloc_throw((len + len2) * sizeof(uint16_t)); 10 11 for (i = 0; i < len; i++) 12 dst[i] = src[i]; 13 14 if (i > 0 && dst[i-1] != '/') 15 dst[i++] = '/'; 16 dst[i++] = '*'; 17 18 if (suffix) 19 { 20 while (*suffix) 21 dst[i++] = *suffix++; 22 } 23 dst[i] = 0; 24 SkASSERT(i + 1 <= len + len2); 25 26 return dst; 27 } 28 29 SkUTF16_Str::SkUTF16_Str(const char src[]) 30 { 31 size_t len = strlen(src); 32 33 fStr = (uint16_t*)sk_malloc_throw((len + 1) * sizeof(uint16_t)); 34 for (size_t i = 0; i < len; i++) 35 fStr[i] = src[i]; 36 fStr[i] = 0; 37 } 38 39 //////////////////////////////////////////////////////////////////////////// 40 41 SkOSFile::Iter::Iter() : fHandle(0), fPath16(nil) 42 { 43 } 44 45 SkOSFile::Iter::Iter(const char path[], const char suffix[]) : fHandle(0), fPath16(nil) 46 { 47 this->reset(path, suffix); 48 } 49 50 SkOSFile::Iter::~Iter() 51 { 52 sk_free(fPath16); 53 if (fHandle) 54 ::FindClose(fHandle); 55 } 56 57 void SkOSFile::Iter::reset(const char path[], const char suffix[]) 58 { 59 if (fHandle) 60 { 61 ::FindClose(fHandle); 62 fHandle = 0; 63 } 64 if (path == nil) 65 path = ""; 66 67 sk_free(fPath16); 68 fPath16 = concat_to_16(path, suffix); 69 } 70 71 static bool is_magic_dir(const uint16_t dir[]) 72 { 73 // return true for "." and ".." 74 return dir[0] == '.' && (dir[1] == 0 || dir[1] == '.' && dir[2] == 0); 75 } 76 77 static bool get_the_file(HANDLE handle, SkString* name, WIN32_FIND_DATAW* dataPtr, bool getDir) 78 { 79 WIN32_FIND_DATAW data; 80 81 if (dataPtr == nil) 82 { 83 if (::FindNextFileW(handle, &data)) 84 dataPtr = &data; 85 else 86 return false; 87 } 88 89 for (;;) 90 { 91 if (getDir) 92 { 93 if ((dataPtr->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) && !is_magic_dir(dataPtr->cFileName)) 94 break; 95 } 96 else 97 { 98 if (!(dataPtr->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)) 99 break; 100 } 101 if (!::FindNextFileW(handle, dataPtr)) 102 return false; 103 } 104 // if we get here, we've found a file/dir 105 if (name) 106 name->setUTF16(dataPtr->cFileName); 107 return true; 108 } 109 110 bool SkOSFile::Iter::next(SkString* name, bool getDir) 111 { 112 WIN32_FIND_DATAW data; 113 WIN32_FIND_DATAW* dataPtr = nil; 114 115 if (fHandle == 0) // our first time 116 { 117 if (fPath16 == nil || *fPath16 == 0) // check for no path 118 return false; 119 120 fHandle = ::FindFirstFileW(fPath16, &data); 121 if (fHandle != 0 && fHandle != (HANDLE)~0) 122 dataPtr = &data; 123 } 124 return fHandle != (HANDLE)~0 && get_the_file(fHandle, name, dataPtr, getDir); 125 } 126 127 #elif defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_UNIX) 128 129 #if 0 130 OSStatus FSPathMakeRef ( 131 const UInt8 * path, 132 FSRef * ref, 133 Boolean * isDirectory 134 ); 135 #endif 136 137 SkOSFile::Iter::Iter() : fDIR(0) 138 { 139 } 140 141 SkOSFile::Iter::Iter(const char path[], const char suffix[]) : fDIR(0) 142 { 143 this->reset(path, suffix); 144 } 145 146 SkOSFile::Iter::~Iter() 147 { 148 if (fDIR) 149 ::closedir(fDIR); 150 } 151 152 void SkOSFile::Iter::reset(const char path[], const char suffix[]) 153 { 154 if (fDIR) 155 { 156 ::closedir(fDIR); 157 fDIR = 0; 158 } 159 160 fPath.set(path); 161 if (path) 162 { 163 fDIR = ::opendir(path); 164 fSuffix.set(suffix); 165 } 166 else 167 fSuffix.reset(); 168 } 169 170 // returns true if suffix is empty, or if str ends with suffix 171 static bool issuffixfor(const SkString& suffix, const char str[]) 172 { 173 size_t suffixLen = suffix.size(); 174 size_t strLen = strlen(str); 175 176 return strLen >= suffixLen && 177 suffixLen == 0 || 178 memcmp(suffix.c_str(), str + strLen - suffixLen, suffixLen) == 0; 179 } 180 181 #include <sys/stat.h> 182 183 bool SkOSFile::Iter::next(SkString* name, bool getDir) 184 { 185 if (fDIR) 186 { 187 dirent* entry; 188 189 while ((entry = ::readdir(fDIR)) != NULL) 190 { 191 struct stat s; 192 SkString str(fPath); 193 194 if (!str.endsWith("/") && !str.endsWith("\\")) 195 str.append("/"); 196 str.append(entry->d_name); 197 198 if (0 == stat(str.c_str(), &s)) 199 { 200 if (getDir) 201 { 202 if (s.st_mode & S_IFDIR) 203 break; 204 } 205 else 206 { 207 if (!(s.st_mode & S_IFDIR) && issuffixfor(fSuffix, entry->d_name)) 208 break; 209 } 210 } 211 } 212 if (entry) // we broke out with a file 213 { 214 if (name) 215 name->set(entry->d_name); 216 return true; 217 } 218 } 219 return false; 220 } 221 222 #endif 223 224
