forked from mirrors/gecko-dev
38 lines
1 KiB
C++
38 lines
1 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/FileSystemUtils.h"
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namespace mozilla {
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namespace dom {
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/* static */ bool
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FileSystemUtils::IsDescendantPath(nsIFile* aFile,
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nsIFile* aDescendantFile)
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{
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nsAutoString path;
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nsresult rv = aFile->GetPath(path);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return false;
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}
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nsAutoString descendantPath;
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rv = aDescendantFile->GetPath(descendantPath);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return false;
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}
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// Check the sub-directory path to see if it has the parent path as prefix.
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if (descendantPath.Length() <= path.Length() ||
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!StringBeginsWith(descendantPath, path)) {
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return false;
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}
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return true;
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}
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} // namespace dom
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} // namespace mozilla
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