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LibWeb: Support getElementsByTagName() properly in non-HTML documents

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Andreas Kling 2022-09-18 00:39:42 +02:00
parent bd0648a492
commit 6b3293a74b
Notes: sideshowbarker 2024-07-17 06:53:17 +09:00
1 changed files with 15 additions and 9 deletions
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24
Userland/Libraries/LibWeb/DOM/ParentNode.cpp
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@ -1,11 +1,13 @@
/*
* Copyright (c) 2020, Luke Wilde <lukew@serenityos.org>
* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/CSS/Parser/Parser.h>
#include <LibWeb/CSS/SelectorEngine.h>
#include <LibWeb/DOM/Document.h>
#include <LibWeb/DOM/HTMLCollection.h>
#include <LibWeb/DOM/NodeOperations.h>
#include <LibWeb/DOM/ParentNode.h>
@ -104,18 +106,22 @@ JS::NonnullGCPtr<HTMLCollection> ParentNode::get_elements_by_tag_name(FlyString
});
}
// FIXME: 2. Otherwise, if root’s node document is an HTML document, return a HTMLCollection rooted at root, whose filter matches the following descendant elements:
// (It is currently always a HTML document)
return HTMLCollection::create(*this, [qualified_name](Element const& element) {
// - Whose namespace is the HTML namespace and whose qualified name is qualifiedName, in ASCII lowercase.
if (element.namespace_() == Namespace::HTML)
return element.qualified_name().to_lowercase() == qualified_name.to_lowercase();
// 2. Otherwise, if root’s node document is an HTML document, return a HTMLCollection rooted at root, whose filter matches the following descendant elements:
if (root().document().document_type() == Document::Type::HTML) {
return HTMLCollection::create(*this, [qualified_name](Element const& element) {
// - Whose namespace is the HTML namespace and whose qualified name is qualifiedName, in ASCII lowercase.
if (element.namespace_() == Namespace::HTML)
return element.qualified_name().to_lowercase() == qualified_name.to_lowercase();
// - Whose namespace is not the HTML namespace and whose qualified name is qualifiedName.
// - Whose namespace is not the HTML namespace and whose qualified name is qualifiedName.
return element.qualified_name() == qualified_name;
});
}
// 3. Otherwise, return a HTMLCollection rooted at root, whose filter matches descendant elements whose qualified name is qualifiedName.
return HTMLCollection::create(*this, [qualified_name](Element const& element) {
return element.qualified_name() == qualified_name;
});
// FIXME: 3. Otherwise, return a HTMLCollection rooted at root, whose filter matches descendant elements whose qualified name is qualifiedName.
}
// https://dom.spec.whatwg.org/#concept-getelementsbytagnamens