/*
 * Copyright (C) 2010 Google 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:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * 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.
 *     * Neither the name of Google 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
 * OWNER OR 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 "FormDataList.h"
#include <wtf/Forward.h>
#include <wtf/Optional.h>
#include <wtf/PassRefPtr.h>
#include <wtf/RefCounted.h>

namespace WebCore {

class Blob;
class HTMLFormElement;
class TextEncoding;

// FIXME: Do we need to have separate DOMFormData and FormDataList classes?
class DOMFormData : public FormDataList, public RefCounted<DOMFormData> {
public:
    static PassRefPtr<DOMFormData> create(HTMLFormElement* form) { return adoptRef(new DOMFormData(form)); }
    static PassRefPtr<DOMFormData> create(const TextEncoding& encoding) { return adoptRef(new DOMFormData(encoding)); }

    using FormDataEntryValue = Item::Data;

    void append(const String& name, const String& value);
    void append(const String& name, PassRefPtr<Blob>, const String& filename = String());
    void remove(const String& name);
    Optional<FormDataEntryValue> get(const String& name);
    Vector<FormDataEntryValue> getAll(const String& name);
    bool has(const String& name);
    void set(const String& name, const String& value);
    void set(const String& name, PassRefPtr<Blob>, const String& filename = String());

    class Iterator {
    public:
        explicit Iterator(DOMFormData&);
        Optional<WTF::KeyValuePair<String, FormDataEntryValue>> next();

    private:
        Ref<DOMFormData> m_target;
        size_t m_index { 0 };
    };
    Iterator createIterator() { return Iterator(*this); }

private:
    explicit DOMFormData(const TextEncoding&);
    explicit DOMFormData(HTMLFormElement*);
};

} // namespace WebCore
