FetchResponseSource.h   [plain text]

/*
 * Copyright (C) 2016 Canon Inc.
 *
 * 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,
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#pragma once

#if ENABLE(FETCH_API) && ENABLE(STREAMS_API)

#include "ReadableStreamSource.h"

namespace JSC {
class ArrayBuffer;
};

namespace WebCore {

class FetchResponse;

class FetchResponseSource final : public ReadableStreamSource {
public:
    FetchResponseSource(FetchResponse&);

    bool enqueue(RefPtr<JSC::ArrayBuffer>&& chunk) { return controller().enqueue(WTFMove(chunk)); }
    void close();
    void error(const String&);

    bool isCancelling() const { return m_isCancelling; }
    bool isReadableStreamLocked() const;

    void resolvePullPromise() { pullFinished(); }

private:
    void doStart() final;
    void doPull() final;
    void doCancel() final;
    void setActive() final;
    void setInactive() final;

    FetchResponse& m_response;
    bool m_isCancelling { false };
};

} // namespace WebCore

#endif // ENABLE(FETCH_API) && ENABLE(STREAMS_API)