ladybird/Userland/Libraries/LibWeb/DOM/HTMLFormControlsCollection.cpp
Shannon Booth bad44f8fc9 LibWeb: Remove Bindings/Forward.h from LibWeb/Forward.h
This was resulting in a whole lot of rebuilding whenever a new IDL
interface was added.

Instead, just directly include the prototype in every C++ file which
needs it. While we only really need a forward declaration in each cpp
file; including the full prototype header (which itself only includes
LibJS/Object.h, which is already transitively brought in by
PlatformObject) - it seems like a small price to pay compared to what
feels like a full rebuild of LibWeb whenever a new IDL file is added.

Given all of these includes are only needed for the ::initialize
method, there is probably a smart way of avoiding this problem
altogether. I've considered both using some macro trickery or generating
these functions somehow instead.
2024-04-27 18:29:35 -04:00

86 lines
3.3 KiB
C++

/*
* Copyright (c) 2023, Shannon Booth <shannon@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/Bindings/HTMLFormControlsCollectionPrototype.h>
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/DOM/Element.h>
#include <LibWeb/DOM/HTMLCollection.h>
#include <LibWeb/DOM/HTMLFormControlsCollection.h>
#include <LibWeb/DOM/ParentNode.h>
namespace Web::DOM {
JS_DEFINE_ALLOCATOR(HTMLFormControlsCollection);
JS::NonnullGCPtr<HTMLFormControlsCollection> HTMLFormControlsCollection::create(ParentNode& root, Scope scope, Function<bool(Element const&)> filter)
{
return root.heap().allocate<HTMLFormControlsCollection>(root.realm(), root, scope, move(filter));
}
HTMLFormControlsCollection::HTMLFormControlsCollection(ParentNode& root, Scope scope, Function<bool(Element const&)> filter)
: HTMLCollection(root, scope, move(filter))
{
}
HTMLFormControlsCollection::~HTMLFormControlsCollection() = default;
void HTMLFormControlsCollection::initialize(JS::Realm& realm)
{
Base::initialize(realm);
WEB_SET_PROTOTYPE_FOR_INTERFACE(HTMLFormControlsCollection);
}
// https://html.spec.whatwg.org/multipage/common-dom-interfaces.html#dom-htmlformcontrolscollection-nameditem
Variant<Empty, Element*, JS::Handle<RadioNodeList>> HTMLFormControlsCollection::named_item_or_radio_node_list(FlyString const& name) const
{
// 1. If name is the empty string, return null and stop the algorithm.
if (name.is_empty())
return {};
// 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.
// 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.
Element* matching_element = nullptr;
bool multiple_matching = false;
auto collection = collect_matching_elements();
for (auto const& element : collection) {
if (element->id() != name && element->name() != name)
continue;
if (matching_element) {
multiple_matching = true;
break;
}
matching_element = element;
}
if (!matching_element)
return {};
if (!multiple_matching)
return matching_element;
// 4. Otherwise, create a new RadioNodeList object representing a live view of the HTMLFormControlsCollection object, further filtered so that the only nodes in the
// 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
// order. Return that RadioNodeList object.
return JS::make_handle(RadioNodeList::create(realm(), root(), LiveNodeList::Scope::Descendants, [name](Node const& node) {
if (!is<Element>(node))
return false;
auto const& element = verify_cast<Element>(node);
return element.id() == name || element.name() == name;
}));
}
WebIDL::ExceptionOr<JS::Value> HTMLFormControlsCollection::named_item_value(FlyString const& name) const
{
return named_item_or_radio_node_list(name).visit(
[](Empty) -> JS::Value { return JS::js_undefined(); },
[](auto const& value) -> JS::Value { return value; });
}
}