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https://github.com/RGBCube/serenity
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LibWeb: Introduce CustomElementRegistry and creating custom elements
The main missing feature here is form associated custom elements.
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parent
083b547e97
commit
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38 changed files with 1747 additions and 143 deletions
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@ -1,5 +1,6 @@
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/*
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* Copyright (c) 2021, Tim Flynn <trflynn89@serenityos.org>
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* Copyright (c) 2023, Luke Wilde <lukew@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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@ -10,15 +11,16 @@
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#include <LibWeb/DOM/Element.h>
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#include <LibWeb/DOM/MutationType.h>
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#include <LibWeb/DOM/StaticNodeList.h>
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#include <LibWeb/HTML/CustomElements/CustomElementReactionNames.h>
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namespace Web::DOM {
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WebIDL::ExceptionOr<JS::NonnullGCPtr<Attr>> Attr::create(Document& document, DeprecatedFlyString local_name, DeprecatedString value, Element const* owner_element)
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WebIDL::ExceptionOr<JS::NonnullGCPtr<Attr>> Attr::create(Document& document, DeprecatedFlyString local_name, DeprecatedString value, Element* owner_element)
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{
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return MUST_OR_THROW_OOM(document.heap().allocate<Attr>(document.realm(), document, QualifiedName(move(local_name), {}, {}), move(value), owner_element));
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}
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WebIDL::ExceptionOr<JS::NonnullGCPtr<Attr>> Attr::create(Document& document, QualifiedName qualified_name, DeprecatedString value, Element const* owner_element)
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WebIDL::ExceptionOr<JS::NonnullGCPtr<Attr>> Attr::create(Document& document, QualifiedName qualified_name, DeprecatedString value, Element* owner_element)
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{
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return MUST_OR_THROW_OOM(document.heap().allocate<Attr>(document.realm(), document, move(qualified_name), move(value), owner_element));
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}
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@ -28,7 +30,7 @@ JS::NonnullGCPtr<Attr> Attr::clone(Document& document)
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return *heap().allocate<Attr>(realm(), document, m_qualified_name, m_value, nullptr).release_allocated_value_but_fixme_should_propagate_errors();
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}
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Attr::Attr(Document& document, QualifiedName qualified_name, DeprecatedString value, Element const* owner_element)
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Attr::Attr(Document& document, QualifiedName qualified_name, DeprecatedString value, Element* owner_element)
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: Node(document, NodeType::ATTRIBUTE_NODE)
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, m_qualified_name(move(qualified_name))
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, m_value(move(value))
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@ -50,12 +52,17 @@ void Attr::visit_edges(Cell::Visitor& visitor)
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visitor.visit(m_owner_element.ptr());
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}
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Element* Attr::owner_element()
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{
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return m_owner_element.ptr();
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}
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Element const* Attr::owner_element() const
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{
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return m_owner_element.ptr();
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}
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void Attr::set_owner_element(Element const* owner_element)
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void Attr::set_owner_element(Element* owner_element)
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{
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m_owner_element = owner_element;
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}
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@ -79,14 +86,25 @@ void Attr::set_value(DeprecatedString value)
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}
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// https://dom.spec.whatwg.org/#handle-attribute-changes
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void Attr::handle_attribute_changes(Element const& element, DeprecatedString const& old_value, [[maybe_unused]] DeprecatedString const& new_value)
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void Attr::handle_attribute_changes(Element& element, DeprecatedString const& old_value, DeprecatedString const& new_value)
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{
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// 1. Queue a mutation record of "attributes" for element with attribute’s local name, attribute’s namespace, oldValue, « », « », null, and null.
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auto added_node_list = StaticNodeList::create(realm(), {}).release_value_but_fixme_should_propagate_errors();
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auto removed_node_list = StaticNodeList::create(realm(), {}).release_value_but_fixme_should_propagate_errors();
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element.queue_mutation_record(MutationType::attributes, local_name(), namespace_uri(), old_value, added_node_list, removed_node_list, nullptr, nullptr);
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// FIXME: 2. If element is custom, then enqueue a custom element callback reaction with element, callback name "attributeChangedCallback", and an argument list containing attribute’s local name, oldValue, newValue, and attribute’s namespace.
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// 2. If element is custom, then enqueue a custom element callback reaction with element, callback name "attributeChangedCallback", and an argument list containing attribute’s local name, oldValue, newValue, and attribute’s namespace.
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if (element.is_custom()) {
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auto& vm = this->vm();
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JS::MarkedVector<JS::Value> arguments { vm.heap() };
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arguments.append(JS::PrimitiveString::create(vm, local_name()));
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arguments.append(JS::PrimitiveString::create(vm, old_value));
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arguments.append(JS::PrimitiveString::create(vm, new_value));
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arguments.append(JS::PrimitiveString::create(vm, namespace_uri()));
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element.enqueue_a_custom_element_callback_reaction(HTML::CustomElementReactionNames::attributeChangedCallback, move(arguments));
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}
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// FIXME: 3. Run the attribute change steps with element, attribute’s local name, oldValue, newValue, and attribute’s namespace.
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}
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