reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame^] | 1 | #include "SkOSFile.h" |
| 2 | |
| 3 | #ifdef SK_BUILD_FOR_WIN |
| 4 | |
| 5 | static U16* 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 | U16* dst = (U16*)sk_malloc_throw((len + len2) * sizeof(U16)); |
| 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 = (U16*)sk_malloc_throw((len + 1) * sizeof(U16)); |
| 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 U16 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 | |