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LibWeb: Handle attribute changes after actually changing the attribute

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This is a normative change in the DOM spec. See:
3fb0aa6
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Timothy Flynn 2023-09-02 10:54:56 -04:00 • committed by Tim Flynn
parent 2d97dd019e
commit 9aae50a9c3
1 changed files with 18 additions and 14 deletions
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32
Userland/Libraries/LibWeb/DOM/NamedNodeMap.cpp
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@ -223,32 +223,33 @@ WebIDL::ExceptionOr<JS::GCPtr<Attr>> NamedNodeMap::set_attribute(Attr& attribute
// https://dom.spec.whatwg.org/#concept-element-attributes-replace
void NamedNodeMap::replace_attribute(Attr& old_attribute, Attr& new_attribute, size_t old_attribute_index)
{
// 1. Handle attribute changes for oldAttr with oldAttr’s element, oldAttr’s value, and newAttr’s value.
VERIFY(old_attribute.owner_element());
old_attribute.handle_attribute_changes(*old_attribute.owner_element(), old_attribute.value(), new_attribute.value());
// 2. Replace oldAttr by newAttr in oldAttr’s element’s attribute list.
// 1. Replace oldAttr by newAttr in oldAttr’s element’s attribute list.
m_attributes.remove(old_attribute_index);
m_attributes.insert(old_attribute_index, new_attribute);
// 3. Set newAttr’s element to oldAttr’s element.
// 2. Set newAttr’s element to oldAttr’s element.
new_attribute.set_owner_element(old_attribute.owner_element());
// 4 .Set oldAttr’s element to null.
// 3. Set oldAttr’s element to null.
old_attribute.set_owner_element(nullptr);
// 4. Handle attribute changes for oldAttr with newAttr’s element, oldAttr’s value, and newAttr’s value.
old_attribute.handle_attribute_changes(*new_attribute.owner_element(), old_attribute.value(), new_attribute.value());
}
// https://dom.spec.whatwg.org/#concept-element-attributes-append
void NamedNodeMap::append_attribute(Attr& attribute)
{
// 1. Handle attribute changes for attribute with element, null, and attribute’s value.
attribute.handle_attribute_changes(associated_element(), {}, attribute.value());
// 2. Append attribute to element’s attribute list.
// 1. Append attribute to element’s attribute list.
m_attributes.append(attribute);
// 3. Set attribute’s element to element.
// 2. Set attribute’s element to element.
attribute.set_owner_element(&associated_element());
// 3. Handle attribute changes for attribute with element, null, and attribute’s value.
attribute.handle_attribute_changes(associated_element(), {}, attribute.value());
}
// https://dom.spec.whatwg.org/#concept-element-attributes-remove
@ -256,15 +257,18 @@ void NamedNodeMap::remove_attribute_at_index(size_t attribute_index)
{
JS::NonnullGCPtr<Attr> attribute = m_attributes.at(attribute_index);
// 1. Handle attribute changes for attribute with attribute’s element, attribute’s value, and null.
VERIFY(attribute->owner_element());
attribute->handle_attribute_changes(*attribute->owner_element(), attribute->value(), {});
// 1. Let element be attribute’s element.
auto* element = attribute->owner_element();
VERIFY(element);
// 2. Remove attribute from attribute’s element’s attribute list.
// 2. Remove attribute from element’s attribute list.
m_attributes.remove(attribute_index);
// 3. Set attribute’s element to null.
attribute->set_owner_element(nullptr);
// 4. Handle attribute changes for attribute with element, attribute’s value, and null.
attribute->handle_attribute_changes(*element, attribute->value(), {});
}
// https://dom.spec.whatwg.org/#concept-element-attributes-remove-by-name