170 lines
3.4 KiB
C++
170 lines
3.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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/FileSystemBase.h"
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#include "nsCharSeparatedTokenizer.h"
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#include "FileSystemUtils.h"
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#include "OSFileSystem.h"
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namespace mozilla {
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namespace dom {
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FileSystemBase::FileSystemBase()
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: mShutdown(false)
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#ifdef DEBUG
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, mOwningThread(PR_GetCurrentThread())
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#endif
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{
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}
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FileSystemBase::~FileSystemBase()
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{
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AssertIsOnOwningThread();
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}
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void
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FileSystemBase::Shutdown()
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{
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AssertIsOnOwningThread();
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mShutdown = true;
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}
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nsISupports*
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FileSystemBase::GetParentObject() const
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{
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AssertIsOnOwningThread();
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return nullptr;
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}
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bool
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FileSystemBase::GetRealPath(BlobImpl* aFile, nsIFile** aPath) const
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{
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AssertIsOnOwningThread();
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MOZ_ASSERT(aFile, "aFile Should not be null.");
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MOZ_ASSERT(aPath);
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nsAutoString filePath;
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ErrorResult rv;
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aFile->GetMozFullPathInternal(filePath, rv);
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if (NS_WARN_IF(rv.Failed())) {
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rv.SuppressException();
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return false;
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}
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rv = NS_NewLocalFile(filePath, true, aPath);
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if (NS_WARN_IF(rv.Failed())) {
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rv.SuppressException();
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return false;
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}
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return true;
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}
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bool
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FileSystemBase::IsSafeFile(nsIFile* aFile) const
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{
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AssertIsOnOwningThread();
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return false;
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}
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bool
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FileSystemBase::IsSafeDirectory(Directory* aDir) const
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{
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AssertIsOnOwningThread();
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return false;
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}
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void
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FileSystemBase::GetDirectoryName(nsIFile* aFile, nsAString& aRetval,
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ErrorResult& aRv) const
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{
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AssertIsOnOwningThread();
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MOZ_ASSERT(aFile);
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aRv = aFile->GetLeafName(aRetval);
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NS_WARNING_ASSERTION(!aRv.Failed(), "GetLeafName failed");
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}
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void
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FileSystemBase::GetDOMPath(nsIFile* aFile,
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nsAString& aRetval,
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ErrorResult& aRv) const
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{
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AssertIsOnOwningThread();
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MOZ_ASSERT(aFile);
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aRetval.Truncate();
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nsCOMPtr<nsIFile> fileSystemPath;
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aRv = NS_NewLocalFile(LocalRootPath(), true, getter_AddRefs(fileSystemPath));
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if (NS_WARN_IF(aRv.Failed())) {
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return;
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}
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nsCOMPtr<nsIFile> path;
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aRv = aFile->Clone(getter_AddRefs(path));
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if (NS_WARN_IF(aRv.Failed())) {
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return;
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}
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nsTArray<nsString> parts;
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while (true) {
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nsAutoString leafName;
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aRv = path->GetLeafName(leafName);
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if (NS_WARN_IF(aRv.Failed())) {
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return;
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}
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if (!leafName.IsEmpty()) {
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parts.AppendElement(leafName);
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}
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bool equal = false;
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aRv = fileSystemPath->Equals(path, &equal);
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if (NS_WARN_IF(aRv.Failed())) {
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return;
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}
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if (equal) {
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break;
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}
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nsCOMPtr<nsIFile> parentPath;
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aRv = path->GetParent(getter_AddRefs(parentPath));
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if (NS_WARN_IF(aRv.Failed())) {
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return;
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}
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MOZ_ASSERT(parentPath);
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aRv = parentPath->Clone(getter_AddRefs(path));
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if (NS_WARN_IF(aRv.Failed())) {
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return;
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}
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}
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if (parts.IsEmpty()) {
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aRetval.AppendLiteral(FILESYSTEM_DOM_PATH_SEPARATOR_LITERAL);
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return;
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}
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for (int32_t i = parts.Length() - 1; i >= 0; --i) {
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aRetval.AppendLiteral(FILESYSTEM_DOM_PATH_SEPARATOR_LITERAL);
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aRetval.Append(parts[i]);
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}
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}
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void
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FileSystemBase::AssertIsOnOwningThread() const
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{
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MOZ_ASSERT(mOwningThread);
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MOZ_ASSERT(PR_GetCurrentThread() == mOwningThread);
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}
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} // namespace dom
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} // namespace mozilla
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