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LibWeb: Make getElementsByTagName() case-insensitive for HTML elements

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From https://dom.spec.whatwg.org/#concept-getelementsbytagname:

    2. Otherwise, if root’s node document is an HTML document, return a
       HTMLCollection rooted at root, whose filter matches the following
       descendant elements:

       * Whose namespace is the HTML namespace and whose qualified name
         is qualifiedName, in ASCII lowercase.

       * Whose namespace is not the HTML namespace and whose qualified
         name is qualifiedName.
This commit is contained in:
Linus Groh 2021-02-08 01:02:33 +01:00 committed by Andreas Kling
parent 27a395d964
commit 5a9094a70a
Notes: sideshowbarker 2024-07-18 22:31:41 +09:00 
Author: https://github.com/linusg
Commit: https://github.com/SerenityOS/serenity/commit/5a9094a70a8
Pull-request: https://github.com/SerenityOS/serenity/pull/5264
Reviewed-by: https://github.com/Lubrsi
1 changed files with 6 additions and 1 deletions
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7
Userland/Libraries/LibWeb/DOM/Document.cpp
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@ -487,10 +487,15 @@ NonnullRefPtrVector<Element> Document::get_elements_by_name(const String& name)
NonnullRefPtrVector<Element> Document::get_elements_by_tag_name(const FlyString& tag_name) const
{
// FIXME: Support "*" for tag_name
// https://dom.spec.whatwg.org/#concept-getelementsbytagname
NonnullRefPtrVector<Element> elements;
for_each_in_subtree_of_type<Element>([&](auto& element) {
if (element.local_name() == tag_name)
if (element.namespace_() == Namespace::HTML
? element.local_name().to_lowercase() == tag_name.to_lowercase()
: element.local_name() == tag_name) {
elements.append(element);
}
return IterationDecision::Continue;
});
return elements;