gecko-dev/dom/indexedDB/FileSnapshot.h

108 lines
2.5 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_indexeddb_filesnapshot_h__
#define mozilla_dom_indexeddb_filesnapshot_h__
#include "mozilla/Attributes.h"
#include "mozilla/dom/File.h"
#include "nsAutoPtr.h"
#include "nsCOMPtr.h"
#include "nsISupports.h"
#include "nsWeakPtr.h"
#define FILEIMPLSNAPSHOT_IID \
{0x0dfc11b1, 0x75d3, 0x473b, {0x8c, 0x67, 0xb7, 0x23, 0xf4, 0x67, 0xd6, 0x73}}
class PIBlobImplSnapshot : public nsISupports
{
public:
NS_DECLARE_STATIC_IID_ACCESSOR(FILEIMPLSNAPSHOT_IID)
};
NS_DEFINE_STATIC_IID_ACCESSOR(PIBlobImplSnapshot, FILEIMPLSNAPSHOT_IID)
namespace mozilla {
namespace dom {
class MetadataParameters;
namespace indexedDB {
class IDBFileHandle;
class BlobImplSnapshot final
: public BlobImplBase
, public PIBlobImplSnapshot
{
typedef mozilla::dom::MetadataParameters MetadataParameters;
nsCOMPtr<nsIFile> mFile;
nsWeakPtr mFileHandle;
bool mWholeFile;
public:
// Create as a stored file
BlobImplSnapshot(const nsAString& aName,
const nsAString& aContentType,
MetadataParameters* aMetadataParams,
nsIFile* aFile,
IDBFileHandle* aFileHandle,
FileInfo* aFileInfo);
NS_DECL_ISUPPORTS_INHERITED
private:
// Create slice
BlobImplSnapshot(const BlobImplSnapshot* aOther,
uint64_t aStart,
uint64_t aLength,
const nsAString& aContentType);
~BlobImplSnapshot();
static void
AssertSanity()
#ifdef DEBUG
;
#else
{ }
#endif
virtual void
GetMozFullPathInternal(nsAString& aFullPath, ErrorResult& aRv) const override;
virtual void
GetInternalStream(nsIInputStream** aStream, ErrorResult& aRv) override;
virtual bool MayBeClonedToOtherThreads() const override
{
return false;
}
virtual already_AddRefed<BlobImpl>
CreateSlice(uint64_t aStart,
uint64_t aLength,
const nsAString& aContentType,
ErrorResult& aRv) override;
virtual bool
IsStoredFile() const override;
virtual bool
IsWholeFile() const override;
virtual bool
IsSnapshot() const override;
};
} // namespace indexedDB
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_indexeddb_filesnapshot_h__