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. :^)
80 lines
3.2 KiB
C++
80 lines
3.2 KiB
C++
/*
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* Copyright (c) 2023, Shannon Booth <shannon@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/Element.h>
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#include <LibWeb/DOM/HTMLCollection.h>
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#include <LibWeb/DOM/HTMLFormControlsCollection.h>
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#include <LibWeb/DOM/ParentNode.h>
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namespace Web::DOM {
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JS_DEFINE_ALLOCATOR(HTMLFormControlsCollection);
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JS::NonnullGCPtr<HTMLFormControlsCollection> HTMLFormControlsCollection::create(ParentNode& root, Scope scope, Function<bool(Element const&)> filter)
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{
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return root.heap().allocate<HTMLFormControlsCollection>(root.realm(), root, scope, move(filter));
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}
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HTMLFormControlsCollection::HTMLFormControlsCollection(ParentNode& root, Scope scope, Function<bool(Element const&)> filter)
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: HTMLCollection(root, scope, move(filter))
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{
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}
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HTMLFormControlsCollection::~HTMLFormControlsCollection() = default;
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void HTMLFormControlsCollection::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::HTMLFormControlsCollectionPrototype>(realm, "HTMLFormControlsCollection"));
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}
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// https://html.spec.whatwg.org/multipage/common-dom-interfaces.html#dom-htmlformcontrolscollection-nameditem
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Variant<Empty, Element*, JS::Handle<RadioNodeList>> HTMLFormControlsCollection::named_item_or_radio_node_list(FlyString const& name)
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{
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// 1. If name is the empty string, return null and stop the algorithm.
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if (name.is_empty())
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return {};
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auto const deprecated_name = name.to_deprecated_fly_string();
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// 2. If, at the time the method is called, there is exactly one node in the collection that has either an id attribute or a name attribute equal to name, then return that node and stop the algorithm.
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// 3. Otherwise, if there are no nodes in the collection that have either an id attribute or a name attribute equal to name, then return null and stop the algorithm.
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Element* matching_element = nullptr;
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bool multiple_matching = false;
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auto collection = collect_matching_elements();
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for (auto const& element : collection) {
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if (element->deprecated_attribute(HTML::AttributeNames::id) != deprecated_name && element->name() != deprecated_name)
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continue;
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if (matching_element) {
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multiple_matching = true;
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break;
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}
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matching_element = element;
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}
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if (!matching_element)
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return {};
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if (!multiple_matching)
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return matching_element;
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// 4. Otherwise, create a new RadioNodeList object representing a live view of the HTMLFormControlsCollection object, further filtered so that the only nodes in the
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// RadioNodeList object are those that have either an id attribute or a name attribute equal to name. The nodes in the RadioNodeList object must be sorted in tree
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// order. Return that RadioNodeList object.
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return JS::make_handle(RadioNodeList::create(realm(), root(), LiveNodeList::Scope::Descendants, [deprecated_name](Node const& node) {
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if (!is<Element>(node))
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return false;
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auto const& element = verify_cast<Element>(node);
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return element.deprecated_attribute(HTML::AttributeNames::id) == deprecated_name || element.name() == deprecated_name;
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}));
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}
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}
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