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85 lines
1.8 KiB
C++
85 lines
1.8 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_file_filehandle_h__
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#define mozilla_dom_file_filehandle_h__
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#include "FileCommon.h"
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#include "nsIDOMFileHandle.h"
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#include "nsIFile.h"
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#include "nsIFileStorage.h"
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#include "nsDOMEventTargetHelper.h"
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class nsIDOMFile;
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class nsIFileStorage;
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BEGIN_FILE_NAMESPACE
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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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/**
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* Must be subclassed. The subclass must implement CreateStream and
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* CreateFileObject. Basically, every file storage implementation provides its
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* own FileHandle implementation (for example IDBFileHandle provides IndexedDB
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* specific implementation).
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*/
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class FileHandle : public nsDOMEventTargetHelper,
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public nsIDOMFileHandle
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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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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_NSIDOMFILEHANDLE
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(FileHandle, nsDOMEventTargetHelper)
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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 already_AddRefed<nsISupports>
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CreateStream(nsIFile* aFile, bool aReadOnly) = 0;
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virtual already_AddRefed<nsIDOMFile>
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CreateFileObject(LockedFile* aLockedFile, uint32_t aFileSize) = 0;
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protected:
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FileHandle()
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{ }
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~FileHandle()
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{ }
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nsCOMPtr<nsIFileStorage> mFileStorage;
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nsString mName;
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nsString mType;
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nsCOMPtr<nsIFile> mFile;
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nsString mFileName;
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};
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END_FILE_NAMESPACE
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#endif // mozilla_dom_file_filehandle_h__
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