dom/filesystem/GetDirectoryListingTask.h
author Andrea Marchesini <amarchesini@mozilla.com>
Wed, 30 Mar 2016 07:18:32 +0100
changeset 291019 7f1ca2749ce7060fef60202c3125cad9e448436b
parent 289602 f0eb0f900c53a566e19ac4f08dab39e0d43b0c10
permissions -rw-r--r--
Bug 1258095 - patch 3/3 - Directory tasks should use FallibleArray, r=smaug

/* -*- 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_GetDirectoryListing_h
#define mozilla_dom_GetDirectoryListing_h

#include "mozilla/dom/Directory.h"
#include "mozilla/dom/FileSystemTaskBase.h"
#include "mozilla/ErrorResult.h"
#include "nsAutoPtr.h"

namespace mozilla {
namespace dom {

class BlobImpl;

class GetDirectoryListingTask final : public FileSystemTaskBase
{
public:
  static already_AddRefed<GetDirectoryListingTask>
  Create(FileSystemBase* aFileSystem,
         nsIFile* aTargetPath,
         Directory::DirectoryType aType,
         const nsAString& aFilters,
         ErrorResult& aRv);

  static already_AddRefed<GetDirectoryListingTask>
  Create(FileSystemBase* aFileSystem,
         const FileSystemGetDirectoryListingParams& aParam,
         FileSystemRequestParent* aParent,
         ErrorResult& aRv);

  virtual
  ~GetDirectoryListingTask();

  already_AddRefed<Promise>
  GetPromise();

  virtual void
  GetPermissionAccessType(nsCString& aAccess) const override;

private:
  // If aDirectoryOnly is set, we should ensure that the target is a directory.
  GetDirectoryListingTask(FileSystemBase* aFileSystem,
                          nsIFile* aTargetPath,
                          Directory::DirectoryType aType,
                          const nsAString& aFilters);

  GetDirectoryListingTask(FileSystemBase* aFileSystem,
                          const FileSystemGetDirectoryListingParams& aParam,
                          FileSystemRequestParent* aParent);

  virtual FileSystemParams
  GetRequestParams(const nsString& aSerializedDOMPath,
                   ErrorResult& aRv) const override;

  virtual FileSystemResponseValue
  GetSuccessRequestResult(ErrorResult& aRv) const override;

  virtual void
  SetSuccessRequestResult(const FileSystemResponseValue& aValue,
                          ErrorResult& aRv) override;

  virtual nsresult
  Work() override;

  virtual void
  HandlerCallback() override;

  RefPtr<Promise> mPromise;
  nsCOMPtr<nsIFile> mTargetPath;
  nsString mFilters;
  Directory::DirectoryType mType;

  // We cannot store File or Directory objects bacause this object is created
  // on a different thread and File and Directory are not thread-safe.
  FallibleTArray<Directory::BlobImplOrDirectoryPath> mTargetData;
};

} // namespace dom
} // namespace mozilla

#endif // mozilla_dom_GetDirectoryListing_h