Source/WebCore/page/ShareDataReader.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 "ExceptionOr.h"
#include "ShareData.h"
#include <wtf/CompletionHandler.h>

namespace WebCore {

class Blob;
class BlobLoader;
class Document;
class ScriptExecutionContext;

class ShareDataReader : public RefCounted<ShareDataReader> {
public:
    static Ref<ShareDataReader> create(CompletionHandler<void(ExceptionOr<ShareDataWithParsedURL&>)>&& completionHandler) { return adoptRef(*new ShareDataReader(WTFMove(completionHandler))); }
    ~ShareDataReader();
    void start(Document*, ShareDataWithParsedURL&&);
    void cancel();

private:
    explicit ShareDataReader(CompletionHandler<void(ExceptionOr<ShareDataWithParsedURL&>)>&&);
    void didFinishLoading(int, const String& fileName);

    CompletionHandler<void(ExceptionOr<ShareDataWithParsedURL&>)> m_completionHandler;
    ShareDataWithParsedURL m_shareData;
    int m_filesReadSoFar;
    Vector<UniqueRef<BlobLoader>> m_pendingFileLoads;
};

}