Source/WebCore/Modules/async-clipboard/ClipboardImageReader.h

/*
 * Copyright (C) 2020 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are 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.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE 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 APPLE INC. OR 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.
 */

#pragma once

#include "Blob.h"
#include "Pasteboard.h"

namespace WebCore {

class Document;
class FragmentedSharedBuffer;

struct ClipboardImageReader : PasteboardFileReader {
    ClipboardImageReader(Document* document, const String& mimeType)
        : PasteboardFileReader()
        , m_document(document)
        , m_mimeType(mimeType)
    {
    }

    RefPtr<Blob> takeResult() { return std::exchange(m_result, nullptr); }

private:
    void readFilename(const String&) final { ASSERT_NOT_REACHED(); }

    bool shouldReadBuffer(const String&) const final;
    void readBuffer(const String& filename, const String& type, Ref<SharedBuffer>&&) final;

    RefPtr<Document> m_document;
    String m_mimeType;
    RefPtr<Blob> m_result;
};

} // namespace WebCore