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640cb8470a
"this" is guaranteed to stay alive as long as other MOZ_CAN_RUN_SCRIPT conditions hold, and its const members can't change value and drop their refs. Differential Revision: https://phabricator.services.mozilla.com/D23997 --HG-- extra : moz-landing-system : lando
99 lines
3.2 KiB
C++
99 lines
3.2 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 "FileSystemFileEntry.h"
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#include "CallbackRunnables.h"
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#include "mozilla/dom/File.h"
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#include "mozilla/dom/FileSystemUtils.h"
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#include "mozilla/dom/MultipartBlobImpl.h"
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#include "mozilla/dom/FileSystemFileEntryBinding.h"
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namespace mozilla {
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namespace dom {
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namespace {
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class FileCallbackRunnable final : public Runnable {
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public:
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FileCallbackRunnable(FileCallback* aCallback, File* aFile)
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: Runnable("FileCallbackRunnable"), mCallback(aCallback), mFile(aFile) {
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MOZ_ASSERT(aCallback);
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MOZ_ASSERT(aFile);
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}
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// MOZ_CAN_RUN_SCRIPT_BOUNDARY until Runnable::Run is MOZ_CAN_RUN_SCRIPT. See
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// bug 1535398.
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MOZ_CAN_RUN_SCRIPT_BOUNDARY NS_IMETHOD Run() override {
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// Here we clone the File object.
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RefPtr<File> file = File::Create(mFile->GetParentObject(), mFile->Impl());
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MOZ_ASSERT(file);
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mCallback->Call(*file);
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return NS_OK;
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}
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private:
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const RefPtr<FileCallback> mCallback;
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RefPtr<File> mFile;
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};
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} // anonymous namespace
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NS_IMPL_CYCLE_COLLECTION_INHERITED(FileSystemFileEntry, FileSystemEntry, mFile)
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NS_IMPL_ADDREF_INHERITED(FileSystemFileEntry, FileSystemEntry)
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NS_IMPL_RELEASE_INHERITED(FileSystemFileEntry, FileSystemEntry)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(FileSystemFileEntry)
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NS_INTERFACE_MAP_END_INHERITING(FileSystemEntry)
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FileSystemFileEntry::FileSystemFileEntry(nsIGlobalObject* aGlobal, File* aFile,
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FileSystemDirectoryEntry* aParentEntry,
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FileSystem* aFileSystem)
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: FileSystemEntry(aGlobal, aParentEntry, aFileSystem), mFile(aFile) {
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MOZ_ASSERT(aGlobal);
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MOZ_ASSERT(mFile);
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}
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FileSystemFileEntry::~FileSystemFileEntry() {}
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JSObject* FileSystemFileEntry::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return FileSystemFileEntry_Binding::Wrap(aCx, this, aGivenProto);
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}
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void FileSystemFileEntry::GetName(nsAString& aName, ErrorResult& aRv) const {
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mFile->GetName(aName);
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}
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void FileSystemFileEntry::GetFullPath(nsAString& aPath,
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ErrorResult& aRv) const {
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mFile->Impl()->GetDOMPath(aPath);
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if (aPath.IsEmpty()) {
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// We're under the root directory. webkitRelativePath
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// (implemented as GetPath) is for cases when file is selected because its
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// ancestor directory is selected. But that is not the case here, so need to
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// manually prepend '/'.
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nsAutoString name;
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mFile->GetName(name);
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aPath.AssignLiteral(FILESYSTEM_DOM_PATH_SEPARATOR_LITERAL);
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aPath.Append(name);
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}
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}
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void FileSystemFileEntry::GetFile(
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FileCallback& aSuccessCallback,
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const Optional<OwningNonNull<ErrorCallback>>& aErrorCallback) const {
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RefPtr<FileCallbackRunnable> runnable =
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new FileCallbackRunnable(&aSuccessCallback, mFile);
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FileSystemUtils::DispatchRunnable(GetParentObject(), runnable.forget());
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}
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} // namespace dom
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} // namespace mozilla
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