/* * Copyright (C) 2015 Canon Inc. * Copyright (C) 2015 Igalia S.L. * * Redistribution and use in source and binary forms, with or without * modification, are permitted, provided that the following conditions * are required to be met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of Canon Inc. nor the names of * its contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY CANON INC. AND ITS CONTRIBUTORS "AS IS" AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL CANON INC. AND ITS CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef ReadableStreamReader_h #define ReadableStreamReader_h #if ENABLE(STREAMS_API) #include "ActiveDOMObject.h" #include "ReadableStream.h" #include "ScriptWrappable.h" #include <functional> #include <wtf/Ref.h> #include <wtf/RefCounted.h> namespace WebCore { typedef int ExceptionCode; // ReadableStreamReader implements access to ReadableStream from JavaScript. // It basically allows access to the ReadableStream iff the ReadableStreamReader instance is the active reader // of the ReadableStream. // Most of this handling is happening in the custom JS binding of ReadableStreamReader. // See https://streams.spec.whatwg.org/#reader-class for more information. class ReadableStreamReader { public: ReadableStreamReader(ReadableStream& stream) : m_stream(stream) { } void cancel(JSC::JSValue, ReadableStream::CancelPromise&&); void closed(ReadableStream::ClosedPromise&&); void read(ReadableStream::ReadPromise&&); void releaseLock(ExceptionCode&); void ref() { m_stream.ref(); } void deref() { m_stream.deref(); } private: ReadableStream& m_stream; }; } #endif #endif // ReadableStream_h