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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef ReadableStreamReader_h | 5 #ifndef ReadableStreamReader_h |
6 #define ReadableStreamReader_h | 6 #define ReadableStreamReader_h |
7 | 7 |
8 #include "bindings/core/v8/ScriptPromise.h" | 8 #include "bindings/core/v8/ScriptPromise.h" |
9 #include "bindings/core/v8/ScriptPromiseProperty.h" | 9 #include "bindings/core/v8/ScriptPromiseProperty.h" |
10 #include "bindings/core/v8/ScriptValue.h" | 10 #include "bindings/core/v8/ScriptValue.h" |
11 #include "bindings/core/v8/ScriptWrappable.h" | 11 #include "bindings/core/v8/ScriptWrappable.h" |
12 #include "bindings/core/v8/ToV8.h" | 12 #include "bindings/core/v8/ToV8.h" |
13 #include "core/dom/ActiveDOMObject.h" | 13 #include "core/dom/ActiveDOMObject.h" |
14 #include "core/streams/ReadableStream.h" | 14 #include "core/streams/ReadableStream.h" |
15 #include "platform/heap/Handle.h" | 15 #include "platform/heap/Handle.h" |
16 | 16 |
17 namespace blink { | 17 namespace blink { |
18 | 18 |
19 class DOMException; | 19 class DOMException; |
20 class ExceptionState; | 20 class ExceptionState; |
21 class ScriptState; | 21 class ScriptState; |
22 | 22 |
23 // ReadableStreamReader corresponds to the same-name class in the Streams spec | 23 // ReadableStreamReader corresponds to the same-name class in the Streams spec |
24 // https://streams.spec.whatwg.org/. This class trusts ReadableStream, contrary | 24 // https://streams.spec.whatwg.org/. |
25 // to the class in the Streams spec, because we only support | |
26 // blink::Readable[Byte]Stream as this reader's customer. | |
27 class ReadableStreamReader final : public GarbageCollectedFinalized<ReadableStre
amReader>, public ScriptWrappable, public ActiveDOMObject { | 25 class ReadableStreamReader final : public GarbageCollectedFinalized<ReadableStre
amReader>, public ScriptWrappable, public ActiveDOMObject { |
28 DEFINE_WRAPPERTYPEINFO(); | 26 DEFINE_WRAPPERTYPEINFO(); |
29 WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(ReadableStreamReader); | 27 WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(ReadableStreamReader); |
30 public: | 28 public: |
31 // The stream must not be locked to any ReadableStreamReader when called. | 29 // The stream must not be locked to any ReadableStreamReader when called. |
32 ReadableStreamReader(ReadableStream*); | 30 ReadableStreamReader(ReadableStream*); |
33 | 31 |
34 ScriptPromise closed(ScriptState*); | 32 ScriptPromise closed(ScriptState*); |
35 bool isActive() const; | 33 bool isActive() const; |
36 ScriptPromise ready(ScriptState*); | |
37 String state() const; | |
38 ScriptPromise cancel(ScriptState*, ScriptValue reason); | 34 ScriptPromise cancel(ScriptState*, ScriptValue reason); |
39 ScriptValue read(ScriptState*, ExceptionState&); | 35 ScriptPromise read(ScriptState*); |
| 36 void releaseLock(ExceptionState&); |
40 void releaseLock(); | 37 void releaseLock(); |
41 ScriptPromise released(ScriptState*); | |
42 | 38 |
43 bool hasPendingActivity() const override; | 39 bool hasPendingActivity() const override; |
44 void stop() override; | 40 void stop() override; |
45 | 41 |
46 DECLARE_TRACE(); | 42 DECLARE_TRACE(); |
47 | 43 |
48 private: | 44 private: |
49 using ReleasedPromise = ScriptPromiseProperty<Member<ReadableStreamReader>,
ToV8UndefinedGenerator, ToV8UndefinedGenerator>; | |
50 using ClosedPromise = ScriptPromiseProperty<Member<ReadableStreamReader>, To
V8UndefinedGenerator, RefPtrWillBeMember<DOMException>>; | 45 using ClosedPromise = ScriptPromiseProperty<Member<ReadableStreamReader>, To
V8UndefinedGenerator, RefPtrWillBeMember<DOMException>>; |
51 using ReadyPromise = ScriptPromiseProperty<Member<ReadableStreamReader>, ToV
8UndefinedGenerator, ToV8UndefinedGenerator>; | |
52 | 46 |
53 const Member<ReadableStream> m_stream; | 47 const Member<ReadableStream> m_stream; |
54 const Member<ReleasedPromise> m_released; | |
55 ReadableStream::State m_stateAfterRelease; | 48 ReadableStream::State m_stateAfterRelease; |
56 Member<ClosedPromise> m_closedAfterRelease; | 49 Member<ClosedPromise> m_closed; |
57 Member<ReadyPromise> m_readyAfterRelease; | |
58 }; | 50 }; |
59 | 51 |
60 } // namespace blink | 52 } // namespace blink |
61 | 53 |
62 #endif // ReadableStreamReader_h | 54 #endif // ReadableStreamReader_h |
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