DataTransferItem.h   [plain text]

/*
 * Copyright (C) 2011 Google Inc. All rights reserved.
 * Copyright (C) 2017 Apple Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
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 * notice, this list of conditions and the following disclaimer.
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 * this software without specific prior written permission.
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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#pragma once

#include "DataTransfer.h"
#include "ScriptWrappable.h"
#include <wtf/Forward.h>
#include <wtf/RefCounted.h>
#include <wtf/WeakPtr.h>
#include <wtf/text/AtomicString.h>

namespace WebCore {

class DOMFileSystem;
class DataTransferListItem;
class File;
class FileSystemEntry;
class ScriptExecutionContext;
class StringCallback;

class DataTransferItem : public RefCounted<DataTransferItem> {
public:
    static Ref<DataTransferItem> create(WeakPtr<DataTransferItemList>&&, const String&);
    static Ref<DataTransferItem> create(WeakPtr<DataTransferItemList>&&, const String&, Ref<File>&&);

    ~DataTransferItem();

    RefPtr<File> file() { return m_file; }
    void clearListAndPutIntoDisabledMode();

    bool isFile() const { return m_file; }
    String kind() const;
    String type() const;
    void getAsString(Document&, RefPtr<StringCallback>&&) const;
    RefPtr<File> getAsFile() const;
    RefPtr<FileSystemEntry> getAsEntry(ScriptExecutionContext&) const;

private:
    DataTransferItem(WeakPtr<DataTransferItemList>&&, const String&);
    DataTransferItem(WeakPtr<DataTransferItemList>&&, const String&, Ref<File>&&);

    bool isInDisabledMode() const { return !m_list; }

    WeakPtr<DataTransferItemList> m_list;
    const String m_type;
    RefPtr<File> m_file;
};

}