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LibWeb: Implement Node.contains

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Used by Web Components Polyfills.
This commit is contained in:
Luke 2021-07-05 05:55:02 +01:00 • committed by Andreas Kling
parent a826df773e
commit 9cae827f07
3 changed files with 9 additions and 0 deletions
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6
Userland/Libraries/LibWeb/DOM/Node.cpp
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@ -649,4 +649,10 @@ bool Node::is_scripting_disabled() const
return !document().browsing_context(); return !document().browsing_context();
} }
// https://dom.spec.whatwg.org/#dom-node-contains
bool Node::contains(RefPtr<Node> other) const
{
return other && other->is_inclusive_descendant_of(*this);
}
} }

2
Userland/Libraries/LibWeb/DOM/Node.h
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@ -166,6 +166,8 @@ public:
bool is_scripting_disabled() const; bool is_scripting_disabled() const;
bool contains(RefPtr<Node>) const;
// Used for dumping the DOM Tree // Used for dumping the DOM Tree
void serialize_tree_as_json(JsonObjectSerializer<StringBuilder>&) const; void serialize_tree_as_json(JsonObjectSerializer<StringBuilder>&) const;

1
Userland/Libraries/LibWeb/DOM/Node.idl
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@ -21,6 +21,7 @@ interface Node : EventTarget {
Node replaceChild(Node node, Node child); Node replaceChild(Node node, Node child);
[ImplementedAs=pre_remove] Node removeChild(Node child); [ImplementedAs=pre_remove] Node removeChild(Node child);
[ImplementedAs=clone_node_binding] Node cloneNode(optional boolean deep = false); [ImplementedAs=clone_node_binding] Node cloneNode(optional boolean deep = false);
boolean contains(Node? other);
const unsigned short ELEMENT_NODE = 1; const unsigned short ELEMENT_NODE = 1;
const unsigned short ATTRIBUTE_NODE = 2; const unsigned short ATTRIBUTE_NODE = 2;