tenfourfox/dom/filesystem/FileSystemUtils.cpp
Cameron Kaiser c9b2922b70 hello FPR
2017-04-19 00:56:45 -07:00

70 lines
1.8 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/dom/FileSystemUtils.h"
#include "nsXULAppAPI.h"
namespace mozilla {
namespace dom {
// static
void
FileSystemUtils::LocalPathToNormalizedPath(const nsAString& aLocal,
nsAString& aNorm)
{
nsString result;
result = aLocal;
#if defined(XP_WIN)
char16_t* cur = result.BeginWriting();
char16_t* end = result.EndWriting();
for (; cur < end; ++cur) {
if (char16_t('\\') == *cur)
*cur = char16_t('/');
}
#endif
aNorm = result;
}
// static
void
FileSystemUtils::NormalizedPathToLocalPath(const nsAString& aNorm,
nsAString& aLocal)
{
nsString result;
result = aNorm;
#if defined(XP_WIN)
char16_t* cur = result.BeginWriting();
char16_t* end = result.EndWriting();
for (; cur < end; ++cur) {
if (char16_t('/') == *cur)
*cur = char16_t('\\');
}
#endif
aLocal = result;
}
// static
bool
FileSystemUtils::IsDescendantPath(const nsAString& aPath,
const nsAString& aDescendantPath)
{
// The descendant path should begin with its ancestor path.
nsAutoString prefix;
prefix = aPath + NS_LITERAL_STRING(FILESYSTEM_DOM_PATH_SEPARATOR);
// Check the sub-directory path to see if it has the parent path as prefix.
if (aDescendantPath.Length() < prefix.Length() ||
!StringBeginsWith(aDescendantPath, prefix)) {
return false;
}
return true;
}
} // namespace dom
} // namespace mozilla