mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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159 lines
2.9 KiB
C++
159 lines
2.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=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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#ifndef mozilla_dom_FileHandle_h
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#define mozilla_dom_FileHandle_h
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#include "js/TypeDecls.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/dom/FileModeBinding.h"
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#include "mozilla/DOMEventTargetHelper.h"
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#include "nsCOMPtr.h"
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#include "nsString.h"
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class nsIDOMFile;
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class nsIFile;
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class nsIOfflineStorage;
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class nsPIDOMWindow;
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namespace mozilla {
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class ErrorResult;
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namespace dom {
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class DOMRequest;
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class FileService;
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class LockedFile;
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class FinishHelper;
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class FileHelper;
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namespace indexedDB {
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class FileInfo;
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} // namespace indexedDB
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/**
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* This class provides a default FileHandle implementation, but it can be also
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* subclassed. The subclass can override implementation of GetFileId,
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* GetFileInfo, IsShuttingDown, IsInvalid, CreateStream, SetThreadLocals,
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* UnsetThreadLocals and CreateFileObject.
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* (for example IDBFileHandle provides IndexedDB specific implementation).
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*/
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class FileHandle : public DOMEventTargetHelper
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{
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friend class FileService;
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friend class LockedFile;
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friend class FinishHelper;
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friend class FileHelper;
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public:
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const nsAString&
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Name() const
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{
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return mName;
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}
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const nsAString&
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Type() const
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{
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return mType;
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}
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virtual int64_t
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GetFileId()
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{
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return -1;
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}
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virtual mozilla::dom::indexedDB::FileInfo*
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GetFileInfo()
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{
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return nullptr;
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}
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virtual bool
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IsShuttingDown();
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virtual bool
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IsInvalid()
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{
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return false;
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}
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// A temporary method that will be removed along with nsIOfflineStorage
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// interface.
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virtual nsIOfflineStorage*
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Storage() = 0;
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virtual already_AddRefed<nsISupports>
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CreateStream(nsIFile* aFile, bool aReadOnly);
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virtual void
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SetThreadLocals()
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{
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}
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virtual void
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UnsetThreadLocals()
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{
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}
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virtual already_AddRefed<nsIDOMFile>
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CreateFileObject(LockedFile* aLockedFile, uint32_t aFileSize);
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// nsWrapperCache
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virtual JSObject*
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WrapObject(JSContext* aCx) MOZ_OVERRIDE;
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// WebIDL
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nsPIDOMWindow*
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GetParentObject() const
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{
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return GetOwner();
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}
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void
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GetName(nsString& aName) const
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{
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aName = mName;
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}
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void
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GetType(nsString& aType) const
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{
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aType = mType;
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}
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already_AddRefed<LockedFile>
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Open(FileMode aMode, ErrorResult& aError);
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already_AddRefed<DOMRequest>
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GetFile(ErrorResult& aError);
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IMPL_EVENT_HANDLER(abort)
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IMPL_EVENT_HANDLER(error)
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protected:
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FileHandle(nsPIDOMWindow* aWindow);
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FileHandle(DOMEventTargetHelper* aOwner);
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virtual ~FileHandle();
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nsString mName;
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nsString mType;
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nsCOMPtr<nsIFile> mFile;
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nsCString mStorageId;
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nsString mFileName;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_FileHandle_h
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