1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/skia/trunk/src/utils/SkOSFile.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,249 @@
1.4 +/*
1.5 + * Copyright 2011 Google Inc.
1.6 + *
1.7 + * Use of this source code is governed by a BSD-style license that can be
1.8 + * found in the LICENSE file.
1.9 + */
1.10 +#include "SkOSFile.h"
1.11 +
1.12 +SkString SkOSPath::SkPathJoin(const char *rootPath, const char *relativePath) {
1.13 + SkString result(rootPath);
1.14 + if (!result.endsWith(SkPATH_SEPARATOR)) {
1.15 + result.appendUnichar(SkPATH_SEPARATOR);
1.16 + }
1.17 + result.append(relativePath);
1.18 + return result;
1.19 +}
1.20 +
1.21 +SkString SkOSPath::SkBasename(const char* fullPath) {
1.22 + if (!fullPath) {
1.23 + return SkString();
1.24 + }
1.25 + const char* filename = strrchr(fullPath, SkPATH_SEPARATOR);
1.26 + if (NULL == filename) {
1.27 + filename = fullPath;
1.28 + } else {
1.29 + ++filename;
1.30 + }
1.31 + return SkString(filename);
1.32 +}
1.33 +
1.34 +#ifdef SK_BUILD_FOR_WIN
1.35 +
1.36 +static uint16_t* concat_to_16(const char src[], const char suffix[])
1.37 +{
1.38 + size_t i, len = strlen(src);
1.39 + size_t len2 = 3 + (suffix ? strlen(suffix) : 0);
1.40 + uint16_t* dst = (uint16_t*)sk_malloc_throw((len + len2) * sizeof(uint16_t));
1.41 +
1.42 + for (i = 0; i < len; i++)
1.43 + dst[i] = src[i];
1.44 +
1.45 + if (i > 0 && dst[i-1] != '/')
1.46 + dst[i++] = '/';
1.47 + dst[i++] = '*';
1.48 +
1.49 + if (suffix)
1.50 + {
1.51 + while (*suffix)
1.52 + dst[i++] = *suffix++;
1.53 + }
1.54 + dst[i] = 0;
1.55 + SkASSERT(i + 1 <= len + len2);
1.56 +
1.57 + return dst;
1.58 +}
1.59 +
1.60 +SkUTF16_Str::SkUTF16_Str(const char src[])
1.61 +{
1.62 + size_t len = strlen(src);
1.63 +
1.64 + fStr = (uint16_t*)sk_malloc_throw((len + 1) * sizeof(uint16_t));
1.65 + size_t i;
1.66 + for (i = 0; i < len; i++)
1.67 + fStr[i] = src[i];
1.68 + fStr[i] = 0;
1.69 +}
1.70 +
1.71 +////////////////////////////////////////////////////////////////////////////
1.72 +
1.73 +SkOSFile::Iter::Iter() : fHandle(0), fPath16(NULL)
1.74 +{
1.75 +}
1.76 +
1.77 +SkOSFile::Iter::Iter(const char path[], const char suffix[]) : fHandle(0), fPath16(NULL)
1.78 +{
1.79 + this->reset(path, suffix);
1.80 +}
1.81 +
1.82 +SkOSFile::Iter::~Iter()
1.83 +{
1.84 + sk_free(fPath16);
1.85 + if (fHandle)
1.86 + ::FindClose(fHandle);
1.87 +}
1.88 +
1.89 +void SkOSFile::Iter::reset(const char path[], const char suffix[])
1.90 +{
1.91 + if (fHandle)
1.92 + {
1.93 + ::FindClose(fHandle);
1.94 + fHandle = 0;
1.95 + }
1.96 + if (NULL == path)
1.97 + path = "";
1.98 +
1.99 + sk_free(fPath16);
1.100 + fPath16 = concat_to_16(path, suffix);
1.101 +}
1.102 +
1.103 +static bool is_magic_dir(const uint16_t dir[])
1.104 +{
1.105 + // return true for "." and ".."
1.106 + return dir[0] == '.' && (dir[1] == 0 || dir[1] == '.' && dir[2] == 0);
1.107 +}
1.108 +
1.109 +static bool get_the_file(HANDLE handle, SkString* name, WIN32_FIND_DATAW* dataPtr, bool getDir)
1.110 +{
1.111 + WIN32_FIND_DATAW data;
1.112 +
1.113 + if (NULL == dataPtr)
1.114 + {
1.115 + if (::FindNextFileW(handle, &data))
1.116 + dataPtr = &data;
1.117 + else
1.118 + return false;
1.119 + }
1.120 +
1.121 + for (;;)
1.122 + {
1.123 + if (getDir)
1.124 + {
1.125 + if ((dataPtr->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) && !is_magic_dir((uint16_t*)dataPtr->cFileName))
1.126 + break;
1.127 + }
1.128 + else
1.129 + {
1.130 + if (!(dataPtr->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
1.131 + break;
1.132 + }
1.133 + if (!::FindNextFileW(handle, dataPtr))
1.134 + return false;
1.135 + }
1.136 + // if we get here, we've found a file/dir
1.137 + if (name)
1.138 + name->setUTF16((uint16_t*)dataPtr->cFileName);
1.139 + return true;
1.140 +}
1.141 +
1.142 +bool SkOSFile::Iter::next(SkString* name, bool getDir)
1.143 +{
1.144 + WIN32_FIND_DATAW data;
1.145 + WIN32_FIND_DATAW* dataPtr = NULL;
1.146 +
1.147 + if (fHandle == 0) // our first time
1.148 + {
1.149 + if (fPath16 == NULL || *fPath16 == 0) // check for no path
1.150 + return false;
1.151 +
1.152 + fHandle = ::FindFirstFileW((LPCWSTR)fPath16, &data);
1.153 + if (fHandle != 0 && fHandle != (HANDLE)~0)
1.154 + dataPtr = &data;
1.155 + }
1.156 + return fHandle != (HANDLE)~0 && get_the_file(fHandle, name, dataPtr, getDir);
1.157 +}
1.158 +
1.159 +#elif defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_UNIX) || defined(SK_BUILD_FOR_ANDROID) || defined(SK_BUILD_FOR_IOS)
1.160 +
1.161 +#if 0
1.162 +OSStatus FSPathMakeRef (
1.163 + const UInt8 * path,
1.164 + FSRef * ref,
1.165 + Boolean * isDirectory
1.166 +);
1.167 +#endif
1.168 +
1.169 +SkOSFile::Iter::Iter() : fDIR(0)
1.170 +{
1.171 +}
1.172 +
1.173 +SkOSFile::Iter::Iter(const char path[], const char suffix[]) : fDIR(0)
1.174 +{
1.175 + this->reset(path, suffix);
1.176 +}
1.177 +
1.178 +SkOSFile::Iter::~Iter()
1.179 +{
1.180 + if (fDIR)
1.181 + ::closedir(fDIR);
1.182 +}
1.183 +
1.184 +void SkOSFile::Iter::reset(const char path[], const char suffix[])
1.185 +{
1.186 + if (fDIR)
1.187 + {
1.188 + ::closedir(fDIR);
1.189 + fDIR = 0;
1.190 + }
1.191 +
1.192 + fPath.set(path);
1.193 + if (path)
1.194 + {
1.195 + fDIR = ::opendir(path);
1.196 + fSuffix.set(suffix);
1.197 + }
1.198 + else
1.199 + fSuffix.reset();
1.200 +}
1.201 +
1.202 +// returns true if suffix is empty, or if str ends with suffix
1.203 +static bool issuffixfor(const SkString& suffix, const char str[])
1.204 +{
1.205 + size_t suffixLen = suffix.size();
1.206 + size_t strLen = strlen(str);
1.207 +
1.208 + return strLen >= suffixLen &&
1.209 + memcmp(suffix.c_str(), str + strLen - suffixLen, suffixLen) == 0;
1.210 +}
1.211 +
1.212 +#include <sys/stat.h>
1.213 +
1.214 +bool SkOSFile::Iter::next(SkString* name, bool getDir)
1.215 +{
1.216 + if (fDIR)
1.217 + {
1.218 + dirent* entry;
1.219 +
1.220 + while ((entry = ::readdir(fDIR)) != NULL)
1.221 + {
1.222 + struct stat s;
1.223 + SkString str(fPath);
1.224 +
1.225 + if (!str.endsWith("/") && !str.endsWith("\\"))
1.226 + str.append("/");
1.227 + str.append(entry->d_name);
1.228 +
1.229 + if (0 == stat(str.c_str(), &s))
1.230 + {
1.231 + if (getDir)
1.232 + {
1.233 + if (s.st_mode & S_IFDIR)
1.234 + break;
1.235 + }
1.236 + else
1.237 + {
1.238 + if (!(s.st_mode & S_IFDIR) && issuffixfor(fSuffix, entry->d_name))
1.239 + break;
1.240 + }
1.241 + }
1.242 + }
1.243 + if (entry) // we broke out with a file
1.244 + {
1.245 + if (name)
1.246 + name->set(entry->d_name);
1.247 + return true;
1.248 + }
1.249 + }
1.250 + return false;
1.251 +}
1.252 +#endif // if one of:SK_BUILD_FOR_MAC, SK_BUILD_FOR_UNIX, SK_BUILD_FOR_ANDROID,SK_BUILD_FOR_IOS
