зеркало из https://github.com/mozilla/gecko-dev.git
92 строки
2.1 KiB
C++
92 строки
2.1 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_indexeddb_filesnapshot_h__
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#define mozilla_dom_indexeddb_filesnapshot_h__
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#include "mozilla/Attributes.h"
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#include "nsAutoPtr.h"
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#include "nsCOMPtr.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsDOMFile.h"
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namespace mozilla {
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namespace dom {
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namespace indexedDB {
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class IDBFileHandle;
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class FileImplSnapshot : public DOMFileImplBase
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{
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public:
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NS_DECL_ISUPPORTS_INHERITED
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// Create as a stored file
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FileImplSnapshot(const nsAString& aName, const nsAString& aContentType,
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uint64_t aLength, nsIFile* aFile, IDBFileHandle* aFileHandle,
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FileInfo* aFileInfo);
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// Overrides
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virtual nsresult
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GetMozFullPathInternal(nsAString& aFullPath) MOZ_OVERRIDE;
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virtual nsresult
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GetInternalStream(nsIInputStream** aStream) MOZ_OVERRIDE;
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virtual void
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Unlink() MOZ_OVERRIDE;
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virtual void
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Traverse(nsCycleCollectionTraversalCallback &aCb) MOZ_OVERRIDE;
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virtual bool
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IsCCed() const MOZ_OVERRIDE
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{
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return true;
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}
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protected:
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// Create slice
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FileImplSnapshot(const FileImplSnapshot* aOther, uint64_t aStart,
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uint64_t aLength, const nsAString& aContentType);
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virtual ~FileImplSnapshot();
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virtual already_AddRefed<nsIDOMBlob>
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CreateSlice(uint64_t aStart, uint64_t aLength,
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const nsAString& aContentType) MOZ_OVERRIDE;
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virtual bool
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IsStoredFile() const MOZ_OVERRIDE
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{
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return true;
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}
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virtual bool
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IsWholeFile() const MOZ_OVERRIDE
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{
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return mWholeFile;
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}
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virtual bool
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IsSnapshot() const MOZ_OVERRIDE
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{
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return true;
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}
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private:
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nsCOMPtr<nsIFile> mFile;
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nsRefPtr<IDBFileHandle> mFileHandle;
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bool mWholeFile;
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};
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} // namespace indexedDB
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_indexeddb_filesnapshot_h__
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