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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkOSFile.h"
#ifdef SK_BUILD_FOR_WIN
static uint16_t* concat_to_16(const char src[], const char suffix[])
{
size_t i, len = strlen(src);
size_t len2 = 3 + (suffix ? strlen(suffix) : 0);
uint16_t* dst = (uint16_t*)sk_malloc_throw((len + len2) * sizeof(uint16_t));
for (i = 0; i < len; i++)
dst[i] = src[i];
if (i > 0 && dst[i-1] != '/')
dst[i++] = '/';
dst[i++] = '*';
if (suffix)
{
while (*suffix)
dst[i++] = *suffix++;
}
dst[i] = 0;
SkASSERT(i + 1 <= len + len2);
return dst;
}
SkUTF16_Str::SkUTF16_Str(const char src[])
{
size_t len = strlen(src);
fStr = (uint16_t*)sk_malloc_throw((len + 1) * sizeof(uint16_t));
size_t i;
for (i = 0; i < len; i++)
fStr[i] = src[i];
fStr[i] = 0;
}
////////////////////////////////////////////////////////////////////////////
SkOSFile::Iter::Iter() : fHandle(0), fPath16(NULL)
{
}
SkOSFile::Iter::Iter(const char path[], const char suffix[]) : fHandle(0), fPath16(NULL)
{
this->reset(path, suffix);
}
SkOSFile::Iter::~Iter()
{
sk_free(fPath16);
if (fHandle)
::FindClose(fHandle);
}
void SkOSFile::Iter::reset(const char path[], const char suffix[])
{
if (fHandle)
{
::FindClose(fHandle);
fHandle = 0;
}
if (NULL == path)
path = "";
sk_free(fPath16);
fPath16 = concat_to_16(path, suffix);
}
static bool is_magic_dir(const uint16_t dir[])
{
// return true for "." and ".."
return dir[0] == '.' && (dir[1] == 0 || dir[1] == '.' && dir[2] == 0);
}
static bool get_the_file(HANDLE handle, SkString* name, WIN32_FIND_DATAW* dataPtr, bool getDir)
{
WIN32_FIND_DATAW data;
if (NULL == dataPtr)
{
if (::FindNextFileW(handle, &data))
dataPtr = &data;
else
return false;
}
for (;;)
{
if (getDir)
{
if ((dataPtr->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) && !is_magic_dir((uint16_t*)dataPtr->cFileName))
break;
}
else
{
if (!(dataPtr->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
break;
}
if (!::FindNextFileW(handle, dataPtr))
return false;
}
// if we get here, we've found a file/dir
if (name)
name->setUTF16((uint16_t*)dataPtr->cFileName);
return true;
}
bool SkOSFile::Iter::next(SkString* name, bool getDir)
{
WIN32_FIND_DATAW data;
WIN32_FIND_DATAW* dataPtr = NULL;
if (fHandle == 0) // our first time
{
if (fPath16 == NULL || *fPath16 == 0) // check for no path
return false;
fHandle = ::FindFirstFileW((LPCWSTR)fPath16, &data);
if (fHandle != 0 && fHandle != (HANDLE)~0)
dataPtr = &data;
}
return fHandle != (HANDLE)~0 && get_the_file(fHandle, name, dataPtr, getDir);
}
#elif defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_UNIX) || defined(SK_BUILD_FOR_ANDROID) || defined(SK_BUILD_FOR_IOS)
#if 0
OSStatus FSPathMakeRef (
const UInt8 * path,
FSRef * ref,
Boolean * isDirectory
);
#endif
SkOSFile::Iter::Iter() : fDIR(0)
{
}
SkOSFile::Iter::Iter(const char path[], const char suffix[]) : fDIR(0)
{
this->reset(path, suffix);
}
SkOSFile::Iter::~Iter()
{
if (fDIR)
::closedir(fDIR);
}
void SkOSFile::Iter::reset(const char path[], const char suffix[])
{
if (fDIR)
{
::closedir(fDIR);
fDIR = 0;
}
fPath.set(path);
if (path)
{
fDIR = ::opendir(path);
fSuffix.set(suffix);
}
else
fSuffix.reset();
}
// returns true if suffix is empty, or if str ends with suffix
static bool issuffixfor(const SkString& suffix, const char str[])
{
size_t suffixLen = suffix.size();
size_t strLen = strlen(str);
return strLen >= suffixLen &&
memcmp(suffix.c_str(), str + strLen - suffixLen, suffixLen) == 0;
}
#include <sys/stat.h>
bool SkOSFile::Iter::next(SkString* name, bool getDir)
{
if (fDIR)
{
dirent* entry;
while ((entry = ::readdir(fDIR)) != NULL)
{
struct stat s;
SkString str(fPath);
if (!str.endsWith("/") && !str.endsWith("\\"))
str.append("/");
str.append(entry->d_name);
if (0 == stat(str.c_str(), &s))
{
if (getDir)
{
if (s.st_mode & S_IFDIR)
break;
}
else
{
if (!(s.st_mode & S_IFDIR) && issuffixfor(fSuffix, entry->d_name))
break;
}
}
}
if (entry) // we broke out with a file
{
if (name)
name->set(entry->d_name);
return true;
}
}
return false;
}
#endif
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