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86 lines
3.5 KiB
C++
86 lines
3.5 KiB
C++
/*
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* Copyright (c) 2020-2022, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/DOM/HTMLCollection.h>
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#include <LibWeb/HTML/HTMLTableCellElement.h>
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#include <LibWeb/HTML/HTMLTableElement.h>
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#include <LibWeb/HTML/HTMLTableRowElement.h>
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#include <LibWeb/HTML/HTMLTableSectionElement.h>
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namespace Web::HTML {
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HTMLTableRowElement::HTMLTableRowElement(DOM::Document& document, DOM::QualifiedName qualified_name)
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: HTMLElement(document, move(qualified_name))
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{
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}
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HTMLTableRowElement::~HTMLTableRowElement() = default;
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// https://html.spec.whatwg.org/multipage/tables.html#dom-tr-cells
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NonnullRefPtr<DOM::HTMLCollection> HTMLTableRowElement::cells() const
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{
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// The cells attribute must return an HTMLCollection rooted at this tr element,
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// whose filter matches only td and th elements that are children of the tr element.
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// FIXME: This should return the same HTMLCollection object every time,
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// but that would cause a reference cycle since HTMLCollection refs the root.
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return DOM::HTMLCollection::create(const_cast<HTMLTableRowElement&>(*this), [this](Element const& element) {
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return element.parent() == this
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&& is<HTMLTableCellElement>(element);
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});
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}
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// https://html.spec.whatwg.org/multipage/tables.html#dom-tr-rowindex
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int HTMLTableRowElement::row_index() const
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{
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// The rowIndex attribute must, if this element has a parent table element,
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// or a parent tbody, thead, or tfoot element and a grandparent table element,
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// return the index of this tr element in that table element's rows collection.
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// If there is no such table element, then the attribute must return −1.
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auto rows_collection = [&]() -> RefPtr<DOM::HTMLCollection> {
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if (!parent())
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return nullptr;
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if (is<HTMLTableElement>(*parent()))
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return const_cast<HTMLTableElement&>(static_cast<HTMLTableElement const&>(*parent())).rows();
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if (is<HTMLTableSectionElement>(*parent()) && parent()->parent() && is<HTMLTableElement>(*parent()->parent()))
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return const_cast<HTMLTableElement&>(static_cast<HTMLTableElement const&>(*parent()->parent())).rows();
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return nullptr;
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}();
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if (!rows_collection)
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return -1;
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auto rows = rows_collection->collect_matching_elements();
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for (size_t i = 0; i < rows.size(); ++i) {
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if (rows[i].ptr() == this)
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return i;
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}
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return -1;
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}
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int HTMLTableRowElement::section_row_index() const
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{
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// The sectionRowIndex attribute must, if this element has a parent table, tbody, thead, or tfoot element,
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// return the index of the tr element in the parent element's rows collection
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// (for tables, that's HTMLTableElement's rows collection; for table sections, that's HTMLTableSectionElement's rows collection).
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// If there is no such parent element, then the attribute must return −1.
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auto rows_collection = [&]() -> RefPtr<DOM::HTMLCollection> {
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if (!parent())
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return nullptr;
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if (is<HTMLTableElement>(*parent()))
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return const_cast<HTMLTableElement&>(static_cast<HTMLTableElement const&>(*parent())).rows();
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if (is<HTMLTableSectionElement>(*parent()))
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return static_cast<HTMLTableSectionElement const&>(*parent()).rows();
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return nullptr;
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}();
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if (!rows_collection)
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return -1;
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auto rows = rows_collection->collect_matching_elements();
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for (size_t i = 0; i < rows.size(); ++i) {
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if (rows[i].ptr() == this)
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return i;
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}
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return -1;
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}
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}
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