gecko-dev/dom/filesystem/OSFileSystem.h

101 строка
2.9 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/. */
#ifndef mozilla_dom_OSFileSystem_h
#define mozilla_dom_OSFileSystem_h
#include "mozilla/dom/FileSystemBase.h"
namespace mozilla {
namespace dom {
class OSFileSystem final : public FileSystemBase {
public:
explicit OSFileSystem(const nsAString& aRootDir);
void Init(nsISupports* aParent);
// Overrides FileSystemBase
virtual already_AddRefed<FileSystemBase> Clone() override;
virtual bool ShouldCreateDirectory() override {
MOZ_CRASH("This should not be called.");
// Because OSFileSystem should not be used when the creation of directories
// is needed. For that we have OSFileSystemParent.
return false;
}
virtual nsISupports* GetParentObject() const override;
virtual bool IsSafeFile(nsIFile* aFile) const override;
virtual bool IsSafeDirectory(Directory* aDir) const override;
virtual void SerializeDOMPath(nsAString& aOutput) const override;
// CC methods
virtual void Unlink() override;
virtual void Traverse(nsCycleCollectionTraversalCallback& cb) override;
private:
virtual ~OSFileSystem() {}
nsCOMPtr<nsISupports> mParent;
};
class OSFileSystemParent final : public FileSystemBase {
public:
explicit OSFileSystemParent(const nsAString& aRootDir);
// Overrides FileSystemBase
virtual already_AddRefed<FileSystemBase> Clone() override {
MOZ_CRASH("This should not be called on the PBackground thread.");
return nullptr;
}
virtual bool ShouldCreateDirectory() override { return false; }
virtual nsISupports* GetParentObject() const override {
MOZ_CRASH("This should not be called on the PBackground thread.");
return nullptr;
}
virtual void GetDirectoryName(nsIFile* aFile, nsAString& aRetval,
ErrorResult& aRv) const override {
MOZ_CRASH("This should not be called on the PBackground thread.");
}
virtual bool IsSafeFile(nsIFile* aFile) const override { return true; }
virtual bool IsSafeDirectory(Directory* aDir) const override {
MOZ_CRASH("This should not be called on the PBackground thread.");
return true;
}
virtual void SerializeDOMPath(nsAString& aOutput) const override {
MOZ_CRASH("This should not be called on the PBackground thread.");
}
// CC methods
virtual void Unlink() override {
MOZ_CRASH("This should not be called on the PBackground thread.");
}
virtual void Traverse(nsCycleCollectionTraversalCallback& cb) override {
MOZ_CRASH("This should not be called on the PBackground thread.");
}
private:
virtual ~OSFileSystemParent() {}
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_OSFileSystem_h