mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-25 05:41:12 +00:00
115 lines
3.7 KiB
C++
115 lines
3.7 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_BlobImpl_h
|
|
#define mozilla_dom_BlobImpl_h
|
|
|
|
#include "nsISupports.h"
|
|
#include "nsString.h"
|
|
|
|
#define BLOBIMPL_IID \
|
|
{ \
|
|
0xbccb3275, 0x6778, 0x4ac5, { \
|
|
0xaf, 0x03, 0x90, 0xed, 0x37, 0xad, 0xdf, 0x5d \
|
|
} \
|
|
}
|
|
|
|
class nsIInputStream;
|
|
|
|
namespace mozilla {
|
|
class ErrorResult;
|
|
|
|
namespace dom {
|
|
|
|
class SystemCallerGuarantee;
|
|
template <typename T>
|
|
class Optional;
|
|
|
|
// This is the abstract class for any File backend. It must be nsISupports
|
|
// because this class must be ref-counted and it has to work with IPC.
|
|
class BlobImpl : public nsISupports {
|
|
public:
|
|
NS_DECLARE_STATIC_IID_ACCESSOR(BLOBIMPL_IID)
|
|
NS_DECL_THREADSAFE_ISUPPORTS
|
|
|
|
BlobImpl() = default;
|
|
|
|
virtual void GetName(nsAString& aName) const = 0;
|
|
|
|
virtual void GetDOMPath(nsAString& aName) const = 0;
|
|
|
|
virtual void SetDOMPath(const nsAString& aName) = 0;
|
|
|
|
virtual int64_t GetLastModified(ErrorResult& aRv) = 0;
|
|
|
|
virtual void GetMozFullPath(nsAString& aName,
|
|
SystemCallerGuarantee /* unused */,
|
|
ErrorResult& aRv) = 0;
|
|
|
|
virtual void GetMozFullPathInternal(nsAString& aFileName,
|
|
ErrorResult& aRv) = 0;
|
|
|
|
virtual uint64_t GetSize(ErrorResult& aRv) = 0;
|
|
|
|
virtual void GetType(nsAString& aType) = 0;
|
|
|
|
virtual void GetBlobImplType(nsAString& aBlobImplType) const = 0;
|
|
|
|
virtual size_t GetAllocationSize() const = 0;
|
|
virtual size_t GetAllocationSize(
|
|
FallibleTArray<BlobImpl*>& aVisitedBlobImpls) const = 0;
|
|
|
|
/**
|
|
* An effectively-unique serial number identifying this instance of FileImpl.
|
|
*
|
|
* Implementations should obtain a serial number from
|
|
* FileImplBase::NextSerialNumber().
|
|
*/
|
|
virtual uint64_t GetSerialNumber() const = 0;
|
|
|
|
already_AddRefed<BlobImpl> Slice(const Optional<int64_t>& aStart,
|
|
const Optional<int64_t>& aEnd,
|
|
const nsAString& aContentType,
|
|
ErrorResult& aRv);
|
|
|
|
virtual already_AddRefed<BlobImpl> CreateSlice(uint64_t aStart,
|
|
uint64_t aLength,
|
|
const nsAString& aContentType,
|
|
ErrorResult& aRv) const = 0;
|
|
|
|
virtual const nsTArray<RefPtr<BlobImpl>>* GetSubBlobImpls() const = 0;
|
|
|
|
virtual void CreateInputStream(nsIInputStream** aStream,
|
|
ErrorResult& aRv) const = 0;
|
|
|
|
virtual int64_t GetFileId() const = 0;
|
|
|
|
nsresult GetSendInfo(nsIInputStream** aBody, uint64_t* aContentLength,
|
|
nsACString& aContentType, nsACString& aCharset);
|
|
|
|
virtual void SetLazyData(const nsAString& aName,
|
|
const nsAString& aContentType, uint64_t aLength,
|
|
int64_t aLastModifiedDate) = 0;
|
|
|
|
virtual bool IsMemoryFile() const = 0;
|
|
|
|
virtual bool IsFile() const = 0;
|
|
|
|
// Returns true if the BlobImpl is backed by an nsIFile and the underlying
|
|
// file is a directory.
|
|
virtual bool IsDirectory() const { return false; }
|
|
|
|
protected:
|
|
virtual ~BlobImpl() = default;
|
|
};
|
|
|
|
NS_DEFINE_STATIC_IID_ACCESSOR(BlobImpl, BLOBIMPL_IID)
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|
|
|
|
#endif // mozilla_dom_BlobImpl_h
|