bfd354492e
With this change, we now have ~1200 CellAllocators across both LibJS and LibWeb in a normal WebContent instance. This gives us a minimum heap size of 4.7 MiB in the scenario where we only have one cell allocated per type. Of course, in practice there will be many more of each type, so the effective overhead is quite a bit smaller than that in practice. I left a few types unconverted to this mechanism because I got tired of doing this. :^)
97 lines
4 KiB
C++
97 lines
4 KiB
C++
/*
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* Copyright (c) 2020, the SerenityOS developers.
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* Copyright (c) 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/Bindings/Intrinsics.h>
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#include <LibWeb/DOM/ElementFactory.h>
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#include <LibWeb/DOM/HTMLCollection.h>
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#include <LibWeb/HTML/HTMLTableRowElement.h>
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#include <LibWeb/HTML/HTMLTableSectionElement.h>
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#include <LibWeb/Namespace.h>
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namespace Web::HTML {
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JS_DEFINE_ALLOCATOR(HTMLTableSectionElement);
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HTMLTableSectionElement::HTMLTableSectionElement(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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HTMLTableSectionElement::~HTMLTableSectionElement() = default;
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void HTMLTableSectionElement::initialize(JS::Realm& realm)
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{
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Base::initialize(realm);
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set_prototype(&Bindings::ensure_web_prototype<Bindings::HTMLTableSectionElementPrototype>(realm, "HTMLTableSectionElement"));
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}
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void HTMLTableSectionElement::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_rows);
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}
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// https://html.spec.whatwg.org/multipage/tables.html#dom-tbody-rows
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JS::NonnullGCPtr<DOM::HTMLCollection> HTMLTableSectionElement::rows() const
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{
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// The rows attribute must return an HTMLCollection rooted at this element,
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// whose filter matches only tr elements that are children of this element.
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if (!m_rows) {
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m_rows = DOM::HTMLCollection::create(const_cast<HTMLTableSectionElement&>(*this), DOM::HTMLCollection::Scope::Children, [](Element const& element) {
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return is<HTMLTableRowElement>(element);
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});
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}
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return *m_rows;
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}
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// https://html.spec.whatwg.org/multipage/tables.html#dom-tbody-insertrow
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WebIDL::ExceptionOr<JS::NonnullGCPtr<HTMLTableRowElement>> HTMLTableSectionElement::insert_row(long index)
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{
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auto rows_collection = rows();
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auto rows_collection_size = static_cast<long>(rows_collection->length());
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// 1. If index is less than −1 or greater than the number of elements in the rows collection, throw an "IndexSizeError" DOMException.
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if (index < -1 || index > rows_collection_size)
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return WebIDL::IndexSizeError::create(realm(), "Index is negative or greater than the number of rows"_fly_string);
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// 2. Let table row be the result of creating an element given this element's node document, tr, and the HTML namespace.
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auto& table_row = static_cast<HTMLTableRowElement&>(*TRY(DOM::create_element(document(), TagNames::tr, Namespace::HTML)));
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// 3. If index is −1 or equal to the number of items in the rows collection, then append table row to this element.
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if (index == -1 || index == rows_collection_size)
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TRY(append_child(table_row));
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// 4. Otherwise, insert table row as a child of this element, immediately before the index-th tr element in the rows collection.
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else
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table_row.insert_before(*this, rows_collection->item(index));
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// 5. Return table row.
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return JS::NonnullGCPtr(table_row);
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}
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// https://html.spec.whatwg.org/multipage/tables.html#dom-tbody-deleterow
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WebIDL::ExceptionOr<void> HTMLTableSectionElement::delete_row(long index)
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{
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auto rows_collection = rows();
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auto rows_collection_size = static_cast<long>(rows_collection->length());
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// 1. If index is less than −1 or greater than or equal to the number of elements in the rows collection, then throw an "IndexSizeError" DOMException.
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if (index < -1 || index >= rows_collection_size)
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return WebIDL::IndexSizeError::create(realm(), "Index is negative or greater than or equal to the number of rows"_fly_string);
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// 2. If index is −1, then remove the last element in the rows collection from this element, or do nothing if the rows collection is empty.
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if (index == -1) {
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if (rows_collection_size > 0)
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rows_collection->item(rows_collection_size - 1)->remove();
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}
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// 3. Otherwise, remove the indexth element in the rows collection from this element.
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else {
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rows_collection->item(index)->remove();
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}
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return {};
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}
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}
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