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LibWeb: Implement Document.createAttribute{,NS}()

This commit is contained in:
Andreas Kling 2023-03-10 14:56:03 +01:00
parent 109ed27423
commit 8c5c78f1f1
3 changed files with 31 additions and 2 deletions

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@ -1,5 +1,5 @@
/*
* Copyright (c) 2018-2022, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2018-2023, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021-2023, Linus Groh <linusg@serenityos.org>
* Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
* Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
@ -2374,4 +2374,27 @@ DeprecatedString Document::dump_accessibility_tree_as_json()
return builder.to_deprecated_string();
}
// https://dom.spec.whatwg.org/#dom-document-createattribute
WebIDL::ExceptionOr<JS::NonnullGCPtr<Attr>> Document::create_attribute(DeprecatedString const& local_name)
{
// 1. If localName does not match the Name production in XML, then throw an "InvalidCharacterError" DOMException.
if (!is_valid_name(local_name))
return WebIDL::InvalidCharacterError::create(realm(), "Invalid character in attribute name.");
// 2. If this is an HTML document, then set localName to localName in ASCII lowercase.
// 3. Return a new attribute whose local name is localName and node document is this.
return Attr::create(*this, is_html_document() ? local_name.to_lowercase() : local_name);
}
// https://dom.spec.whatwg.org/#dom-document-createattributens
WebIDL::ExceptionOr<JS::NonnullGCPtr<Attr>> Document::create_attribute_ns(DeprecatedString const& namespace_, DeprecatedString const& qualified_name)
{
// 1. Let namespace, prefix, and localName be the result of passing namespace and qualifiedName to validate and extract.
auto extracted_qualified_name = TRY(validate_and_extract(realm(), namespace_, qualified_name));
// 2. Return a new attribute whose namespace is namespace, namespace prefix is prefix, local name is localName, and node document is this.
return Attr::create(*this, extracted_qualified_name);
}
}