зеркало из https://github.com/mozilla/gecko-dev.git
145 строки
4.2 KiB
C++
145 строки
4.2 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 "RootDirectoryEntry.h"
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#include "RootDirectoryReader.h"
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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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NS_IMPL_CYCLE_COLLECTION_INHERITED(RootDirectoryEntry, DirectoryEntry, mEntries)
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NS_IMPL_ADDREF_INHERITED(RootDirectoryEntry, DirectoryEntry)
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NS_IMPL_RELEASE_INHERITED(RootDirectoryEntry, DirectoryEntry)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(RootDirectoryEntry)
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NS_INTERFACE_MAP_END_INHERITING(DirectoryEntry)
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RootDirectoryEntry::RootDirectoryEntry(nsIGlobalObject* aGlobal,
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const Sequence<RefPtr<Entry>>& aEntries,
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DOMFileSystem* aFileSystem)
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: DirectoryEntry(aGlobal, nullptr, aFileSystem)
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, mEntries(aEntries)
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{
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MOZ_ASSERT(aGlobal);
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}
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RootDirectoryEntry::~RootDirectoryEntry()
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{}
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void
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RootDirectoryEntry::GetName(nsAString& aName, ErrorResult& aRv) const
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{
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aName.Truncate();
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}
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void
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RootDirectoryEntry::GetFullPath(nsAString& aPath, ErrorResult& aRv) const
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{
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aPath.AssignLiteral(FILESYSTEM_DOM_PATH_SEPARATOR_LITERAL);
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}
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already_AddRefed<DirectoryReader>
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RootDirectoryEntry::CreateReader() const
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{
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RefPtr<DirectoryReader> reader =
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new RootDirectoryReader(GetParentObject(), Filesystem(), mEntries);
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return reader.forget();
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}
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void
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RootDirectoryEntry::GetInternal(const nsAString& aPath, const FileSystemFlags& aFlag,
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const Optional<OwningNonNull<EntryCallback>>& aSuccessCallback,
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const Optional<OwningNonNull<ErrorCallback>>& aErrorCallback,
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GetInternalType aType) const
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{
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if (!aSuccessCallback.WasPassed() && !aErrorCallback.WasPassed()) {
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return;
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}
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if (aFlag.mCreate) {
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ErrorCallbackHelper::Call(GetParentObject(), aErrorCallback,
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NS_ERROR_DOM_SECURITY_ERR);
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return;
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}
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nsTArray<nsString> parts;
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if (!FileSystemUtils::IsValidRelativeDOMPath(aPath, parts)) {
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ErrorCallbackHelper::Call(GetParentObject(), aErrorCallback,
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NS_ERROR_DOM_NOT_FOUND_ERR);
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return;
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}
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MOZ_ASSERT(!parts.IsEmpty());
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RefPtr<Entry> entry;
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for (uint32_t i = 0; i < mEntries.Length(); ++i) {
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ErrorResult rv;
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nsAutoString name;
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mEntries[i]->GetName(name, rv);
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if (NS_WARN_IF(rv.Failed())) {
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ErrorCallbackHelper::Call(GetParentObject(), aErrorCallback,
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rv.StealNSResult());
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return;
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}
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if (name == parts[0]) {
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entry = mEntries[i];
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break;
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}
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}
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// Not found.
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if (!entry) {
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ErrorCallbackHelper::Call(GetParentObject(), aErrorCallback,
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NS_ERROR_DOM_NOT_FOUND_ERR);
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return;
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}
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// No subdirectory in the path.
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if (parts.Length() == 1) {
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if ((entry->IsFile() && aType == eGetDirectory) ||
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(entry->IsDirectory() && aType == eGetFile)) {
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ErrorCallbackHelper::Call(GetParentObject(), aErrorCallback,
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NS_ERROR_DOM_TYPE_MISMATCH_ERR);
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return;
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}
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if (aSuccessCallback.WasPassed()) {
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RefPtr<EntryCallbackRunnable> runnable =
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new EntryCallbackRunnable(&aSuccessCallback.Value(), entry);
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nsresult rv = NS_DispatchToMainThread(runnable);
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NS_WARN_IF(NS_FAILED(rv));
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}
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return;
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}
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// Subdirectories, but this is a file.
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if (entry->IsFile()) {
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ErrorCallbackHelper::Call(GetParentObject(), aErrorCallback,
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NS_ERROR_DOM_NOT_FOUND_ERR);
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return;
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}
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// Let's recreate a path without the first directory.
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nsAutoString path;
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for (uint32_t i = 1, len = parts.Length(); i < len; ++i) {
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path.Append(parts[i]);
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if (i < len - 1) {
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path.AppendLiteral(FILESYSTEM_DOM_PATH_SEPARATOR_LITERAL);
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}
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}
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auto* directoryEntry = static_cast<DirectoryEntry*>(entry.get());
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directoryEntry->GetInternal(path, aFlag, aSuccessCallback, aErrorCallback,
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aType);
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}
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} // dom namespace
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} // mozilla namespace
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