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+// /*
+// * 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.
+// */
+
+// #include "config.h"
+// #include "DOMFormData.h"
+
+// #include "Document.h"
+// #include "HTMLFormControlElement.h"
+// #include "HTMLFormElement.h"
+
+// namespace WebCore {
+
+// DOMFormData::DOMFormData(const PAL::TextEncoding& encoding)
+// : m_encoding(encoding)
+// {
+// }
+
+// ExceptionOr<Ref<DOMFormData>> DOMFormData::create(HTMLFormElement* form)
+// {
+// auto formData = adoptRef(*new DOMFormData);
+// if (!form)
+// return formData;
+
+// auto result = form->constructEntryList(WTFMove(formData), nullptr);
+
+// if (!result)
+// return Exception { InvalidStateError, "Already constructing Form entry list."_s };
+
+// return result.releaseNonNull();
+// }
+
+// Ref<DOMFormData> DOMFormData::create(const PAL::TextEncoding& encoding)
+// {
+// return adoptRef(*new DOMFormData(encoding));
+// }
+
+// Ref<DOMFormData> DOMFormData::clone() const
+// {
+// auto newFormData = adoptRef(*new DOMFormData(this->encoding()));
+// newFormData->m_items = m_items;
+
+// return newFormData;
+// }
+
+// // https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#create-an-entry
+// static auto createStringEntry(const String& name, const String& value) -> DOMFormData::Item
+// {
+// return {
+// replaceUnpairedSurrogatesWithReplacementCharacter(String(name)),
+// replaceUnpairedSurrogatesWithReplacementCharacter(String(value)),
+// };
+// }
+
+// void DOMFormData::append(const String& name, const String& value)
+// {
+// m_items.append(createStringEntry(name, value));
+// }
+
+// void DOMFormData::append(const String& name, Blob& blob, const String& filename)
+// {
+// m_items.append(createFileEntry(name, blob, filename));
+// }
+
+// void DOMFormData::remove(const String& name)
+// {
+// m_items.removeAllMatching([&name](const auto& item) {
+// return item.name == name;
+// });
+// }
+
+// auto DOMFormData::get(const String& name) -> std::optional<FormDataEntryValue>
+// {
+// for (auto& item : m_items) {
+// if (item.name == name)
+// return item.data;
+// }
+
+// return std::nullopt;
+// }
+
+// auto DOMFormData::getAll(const String& name) -> Vector<FormDataEntryValue>
+// {
+// Vector<FormDataEntryValue> result;
+
+// for (auto& item : m_items) {
+// if (item.name == name)
+// result.append(item.data);
+// }
+
+// return result;
+// }
+
+// bool DOMFormData::has(const String& name)
+// {
+// for (auto& item : m_items) {
+// if (item.name == name)
+// return true;
+// }
+
+// return false;
+// }
+
+// void DOMFormData::set(const String& name, const String& value)
+// {
+// set(name, { name, value });
+// }
+
+// void DOMFormData::set(const String& name, Blob& blob, const String& filename)
+// {
+// set(name, createFileEntry(name, blob, filename));
+// }
+
+// void DOMFormData::set(const String& name, Item&& item)
+// {
+// std::optional<size_t> initialMatchLocation;
+
+// // Find location of the first item with a matching name.
+// for (size_t i = 0; i < m_items.size(); ++i) {
+// if (name == m_items[i].name) {
+// initialMatchLocation = i;
+// break;
+// }
+// }
+
+// if (initialMatchLocation) {
+// m_items[*initialMatchLocation] = WTFMove(item);
+
+// m_items.removeAllMatching([&name](const auto& item) {
+// return item.name == name;
+// },
+// *initialMatchLocation + 1);
+// return;
+// }
+
+// m_items.append(WTFMove(item));
+// }
+
+// DOMFormData::Iterator::Iterator(DOMFormData& target)
+// : m_target(target)
+// {
+// }
+
+// std::optional<KeyValuePair<String, DOMFormData::FormDataEntryValue>> DOMFormData::Iterator::next()
+// {
+// auto& items = m_target->items();
+// if (m_index >= items.size())
+// return std::nullopt;
+
+// auto& item = items[m_index++];
+// return makeKeyValuePair(item.name, item.data);
+// }
+
+// } // namespace WebCore