LibWeb/Animations: Make KeyframeEffect work with AbstractElements

Author: AtkinsSJ

Libraries/LibWeb/Animations/KeyframeEffect.cpp

@@ -799,6 +799,19 @@ WebIDL::ExceptionOr<void> KeyframeEffect::set_pseudo_element(Optional<String> va
     return {};
 }
 
+Optional<DOM::AbstractElement> KeyframeEffect::target_abstract_element() const
+{
+    if (m_target_element)
+        return DOM::AbstractElement { *m_target_element, pseudo_element_type() };
+    return {};
+}
+
+void KeyframeEffect::set_target(DOM::AbstractElement abstract_element)
+{
+    set_target(&abstract_element.element());
+    m_target_pseudo_selector = abstract_element.pseudo_element().map([](auto it) { return CSS::Selector::PseudoElementSelector { it }; });
+}
+
 Optional<CSS::PseudoElement> KeyframeEffect::pseudo_element_type() const
 {
     if (!m_target_pseudo_selector.has_value())

Libraries/LibWeb/Animations/KeyframeEffect.h

@@ -93,6 +93,9 @@ class KeyframeEffect final : public AnimationEffect {
     Optional<String> pseudo_element() const;
     WebIDL::ExceptionOr<void> set_pseudo_element(Optional<String>);
 
+    Optional<DOM::AbstractElement> target_abstract_element() const;
+    void set_target(DOM::AbstractElement);
+
     Optional<CSS::PseudoElement> pseudo_element_type() const;
     void set_pseudo_element(Optional<CSS::Selector::PseudoElementSelector> pseudo_element) { m_target_pseudo_selector = pseudo_element; }