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a6dfc74e93
Before this change, we were going through the chain of base classes for each IDL interface object and having them set the prototype to their prototype. Instead of doing that, reorder things so that we set the right prototype immediately in Foo::initialize(), and then don't bother in all the base class overrides. This knocks off a ~1% profile item on Speedometer 3.
87 lines
3.3 KiB
C++
87 lines
3.3 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/HTMLFormControlsCollectionPrototype.h>
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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/ParentNode.h>
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#include <LibWeb/HTML/HTMLFormControlsCollection.h>
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#include <LibWeb/HTML/RadioNodeList.h>
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namespace Web::HTML {
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GC_DEFINE_ALLOCATOR(HTMLFormControlsCollection);
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GC::Ref<HTMLFormControlsCollection> HTMLFormControlsCollection::create(DOM::ParentNode& root, Scope scope, Function<bool(DOM::Element const&)> filter)
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{
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return root.realm().create<HTMLFormControlsCollection>(root, scope, move(filter));
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}
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HTMLFormControlsCollection::HTMLFormControlsCollection(DOM::ParentNode& root, Scope scope, Function<bool(DOM::Element const&)> filter)
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: DOM::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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WEB_SET_PROTOTYPE_FOR_INTERFACE(HTMLFormControlsCollection);
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Base::initialize(realm);
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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, DOM::Element*, GC::Root<RadioNodeList>> HTMLFormControlsCollection::named_item_or_radio_node_list(FlyString const& name) const
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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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// 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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DOM::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->id() != name && element->name() != 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 GC::make_root(RadioNodeList::create(realm(), root(), DOM::LiveNodeList::Scope::Descendants, [name](auto const& node) {
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if (!is<DOM::Element>(node))
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return false;
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auto const& element = as<DOM::Element>(node);
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return element.id() == name || element.name() == name;
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}));
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}
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JS::Value HTMLFormControlsCollection::named_item_value(FlyString const& name) const
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{
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return named_item_or_radio_node_list(name).visit(
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[](Empty) -> JS::Value { return JS::js_undefined(); },
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[](auto const& value) -> JS::Value { return value; });
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}
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}
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