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/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/NonnullRefPtrVector.h>
#include <LibWeb/DOM/Element.h>
#include <LibWeb/Forward.h>
namespace Web::HTML {
class StackOfOpenElements {
public:
StackOfOpenElements() { }
~StackOfOpenElements();
DOM::Element& first() { return m_elements.first(); }
DOM::Element& last() { return m_elements.last(); }
bool is_empty() const { return m_elements.is_empty(); }
void push(NonnullRefPtr<DOM::Element> element) { m_elements.append(move(element)); }
NonnullRefPtr<DOM::Element> pop() { return m_elements.take_last(); }
const DOM::Element& current_node() const { return m_elements.last(); }
DOM::Element& current_node() { return m_elements.last(); }
bool has_in_scope(const FlyString& tag_name) const;
bool has_in_button_scope(const FlyString& tag_name) const;
bool has_in_table_scope(const FlyString& tag_name) const;
bool has_in_list_item_scope(const FlyString& tag_name) const;
bool has_in_select_scope(const FlyString& tag_name) const;
bool has_in_scope(const DOM::Element&) const;
bool contains(const DOM::Element&) const;
bool contains(const FlyString& tag_name) const;
const NonnullRefPtrVector<DOM::Element>& elements() const { return m_elements; }
NonnullRefPtrVector<DOM::Element>& elements() { return m_elements; }
void pop_until_an_element_with_tag_name_has_been_popped(const FlyString&);
DOM::Element* topmost_special_node_below(const DOM::Element&);
struct LastElementResult {
DOM::Element* element;
ssize_t index;
};
LastElementResult last_element_with_tag_name(const FlyString&);
DOM::Element* element_before(const DOM::Element&);
private:
bool has_in_scope_impl(const FlyString& tag_name, const Vector<FlyString>&) const;
bool has_in_scope_impl(const DOM::Element& target_node, const Vector<FlyString>&) const;
NonnullRefPtrVector<DOM::Element> m_elements;
};
}
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