1 | /* |
2 | * Copyright (C) 2016 Canon Inc. |
3 | * Copyright (C) 2017 Apple Inc. |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted, provided that the following conditions |
7 | * are required to be met: |
8 | * |
9 | * 1. Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * 2. Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
14 | * |
15 | * THIS SOFTWARE IS PROVIDED BY CANON INC. AND ITS CONTRIBUTORS "AS IS" AND ANY |
16 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
17 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
18 | * DISCLAIMED. IN NO EVENT SHALL CANON INC. AND ITS CONTRIBUTORS BE LIABLE FOR |
19 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
20 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
21 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
22 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
23 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
24 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
25 | */ |
26 | |
27 | #pragma once |
28 | |
29 | #if ENABLE(STREAMS_API) |
30 | |
31 | #include "ReadableStreamSource.h" |
32 | |
33 | namespace JSC { |
34 | class ArrayBuffer; |
35 | }; |
36 | |
37 | namespace WebCore { |
38 | |
39 | class FetchBodyOwner; |
40 | |
41 | class FetchBodySource final : public ReadableStreamSource { |
42 | public: |
43 | FetchBodySource(FetchBodyOwner&); |
44 | |
45 | bool enqueue(RefPtr<JSC::ArrayBuffer>&& chunk) { return controller().enqueue(WTFMove(chunk)); } |
46 | void close(); |
47 | void error(const Exception&); |
48 | |
49 | bool isCancelling() const { return m_isCancelling; } |
50 | |
51 | void resolvePullPromise() { pullFinished(); } |
52 | void detach() { m_bodyOwner = nullptr; } |
53 | |
54 | private: |
55 | void doStart() final; |
56 | void doPull() final; |
57 | void doCancel() final; |
58 | void setActive() final; |
59 | void setInactive() final; |
60 | |
61 | FetchBodyOwner* m_bodyOwner; |
62 | bool m_isCancelling { false }; |
63 | #ifndef NDEBUG |
64 | bool m_isClosed { false }; |
65 | #endif |
66 | }; |
67 | |
68 | } // namespace WebCore |
69 | |
70 | #endif // ENABLE(STREAMS_API) |
71 | |