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. :^)
105 lines
4 KiB
C++
105 lines
4 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/Bindings/RadioNodeListPrototype.h>
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#include <LibWeb/DOM/Element.h>
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#include <LibWeb/DOM/RadioNodeList.h>
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#include <LibWeb/HTML/HTMLInputElement.h>
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namespace Web::DOM {
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JS_DEFINE_ALLOCATOR(RadioNodeList);
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JS::NonnullGCPtr<RadioNodeList> RadioNodeList::create(JS::Realm& realm, Node& root, Scope scope, Function<bool(Node const&)> filter)
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{
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return realm.heap().allocate<RadioNodeList>(realm, realm, root, scope, move(filter));
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}
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RadioNodeList::RadioNodeList(JS::Realm& realm, Node& root, Scope scope, Function<bool(Node const&)> filter)
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: LiveNodeList(realm, root, scope, move(filter))
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{
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}
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RadioNodeList::~RadioNodeList() = default;
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void RadioNodeList::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::RadioNodeListPrototype>(realm, "RadioNodeList"));
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}
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static HTML::HTMLInputElement const* radio_button(Node const& node)
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{
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if (!is<HTML::HTMLInputElement>(node))
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return nullptr;
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auto const& input_element = verify_cast<HTML::HTMLInputElement>(node);
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if (input_element.type_state() != HTML::HTMLInputElement::TypeAttributeState::RadioButton)
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return nullptr;
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return &input_element;
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}
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// https://html.spec.whatwg.org/multipage/common-dom-interfaces.html#dom-radionodelist-value
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FlyString RadioNodeList::value() const
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{
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// 1. Let element be the first element in tree order represented by the RadioNodeList object that is an input element whose type
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// attribute is in the Radio Button state and whose checkedness is true. Otherwise, let it be null.
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auto* element = verify_cast<HTML::HTMLInputElement>(first_matching([](Node const& node) -> bool {
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auto const* button = radio_button(node);
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if (!button)
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return false;
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return button->checked();
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}));
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// 2. If element is null, return the empty string.
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if (!element)
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return String {};
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// 3. If element is an element with no value attribute, return the string "on".
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// 4. Otherwise, return the value of element's value attribute.
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return element->get_attribute(HTML::AttributeNames::value).value_or("on"_string);
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}
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void RadioNodeList::set_value(FlyString const& value)
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{
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HTML::HTMLInputElement* element = nullptr;
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// 1. If the new value is the string "on": let element be the first element in tree order represented by the RadioNodeList object
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// that is an input element whose type attribute is in the Radio Button state and whose value content attribute is either absent,
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// or present and equal to the new value, if any. If no such element exists, then instead let element be null.
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if (value == "on"sv) {
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element = verify_cast<HTML::HTMLInputElement>(first_matching([&value](auto const& node) {
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auto const* button = radio_button(node);
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if (!button)
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return false;
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auto const maybe_value = button->get_attribute(HTML::AttributeNames::value);
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return !maybe_value.has_value() || maybe_value.value() == value;
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}));
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}
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// 2. Otherwise: let element be the first element in tree order represented by the RadioNodeList object that is an input element whose
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// type attribute is in the Radio Button state and whose value content attribute is present and equal to the new value, if any. If
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// no such element exists, then instead let element be null.
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else {
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element = verify_cast<HTML::HTMLInputElement>(first_matching([&value](auto const& node) {
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auto const* button = radio_button(node);
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if (!button)
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return false;
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auto const maybe_value = button->get_attribute(HTML::AttributeNames::value);
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return maybe_value.has_value() && maybe_value.value() == value;
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}));
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}
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// 3. If element is not null, then set its checkedness to true.
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if (element)
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element->set_checked(true);
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}
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}
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