/src/mozilla-central/dom/file/EmptyBlobImpl.h
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1 | | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
2 | | /* vim: set ts=8 sts=2 et sw=2 tw=80: */ |
3 | | /* This Source Code Form is subject to the terms of the Mozilla Public |
4 | | * License, v. 2.0. If a copy of the MPL was not distributed with this |
5 | | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
6 | | |
7 | | #ifndef mozilla_dom_EmptyBlobImpl_h |
8 | | #define mozilla_dom_EmptyBlobImpl_h |
9 | | |
10 | | #include "BaseBlobImpl.h" |
11 | | |
12 | | namespace mozilla { |
13 | | namespace dom { |
14 | | |
15 | | class EmptyBlobImpl final : public BaseBlobImpl |
16 | | { |
17 | | public: |
18 | | NS_INLINE_DECL_REFCOUNTING_INHERITED(EmptyBlobImpl, BaseBlobImpl) |
19 | | |
20 | | explicit EmptyBlobImpl(const nsAString& aContentType) |
21 | | : BaseBlobImpl(aContentType, 0 /* aLength */) |
22 | 0 | { |
23 | 0 | mImmutable = true; |
24 | 0 | } |
25 | | |
26 | | EmptyBlobImpl(const nsAString& aName, |
27 | | const nsAString& aContentType, |
28 | | int64_t aLastModifiedDate) |
29 | | : BaseBlobImpl(aName, aContentType, 0, aLastModifiedDate) |
30 | 0 | { |
31 | 0 | mImmutable = true; |
32 | 0 | } |
33 | | |
34 | | virtual void CreateInputStream(nsIInputStream** aStream, |
35 | | ErrorResult& aRv) override; |
36 | | |
37 | | virtual already_AddRefed<BlobImpl> |
38 | | CreateSlice(uint64_t aStart, uint64_t aLength, |
39 | | const nsAString& aContentType, ErrorResult& aRv) override; |
40 | | |
41 | | virtual bool IsMemoryFile() const override |
42 | 0 | { |
43 | 0 | return true; |
44 | 0 | } |
45 | | |
46 | | private: |
47 | 0 | ~EmptyBlobImpl() {} |
48 | | }; |
49 | | |
50 | | } // namespace dom |
51 | | } // namespace mozilla |
52 | | |
53 | | #endif // mozilla_dom_EmptyBlobImpl_h |