LibWeb: Add SVGAnimatedEnumeration

Author: https://github.com/gmta
Commit: aeef179668
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/3657

Libraries/LibWeb/SVG/SVGAnimatedEnumeration.cpp

@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2025, Jelle Raaijmakers <jelle@ladybird.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibWeb/Bindings/Intrinsics.h>
+#include <LibWeb/Bindings/SVGAnimatedEnumerationPrototype.h>
+#include <LibWeb/SVG/SVGAnimatedEnumeration.h>
+#include <LibWeb/WebIDL/ExceptionOr.h>
+
+namespace Web::SVG {
+
+GC_DEFINE_ALLOCATOR(SVGAnimatedEnumeration);
+
+GC::Ref<SVGAnimatedEnumeration> SVGAnimatedEnumeration::create(JS::Realm& realm, u16 value)
+{
+    return realm.create<SVGAnimatedEnumeration>(realm, value);
+}
+
+SVGAnimatedEnumeration::SVGAnimatedEnumeration(JS::Realm& realm, u16 value)
+    : PlatformObject(realm)
+    , m_value(value)
+{
+}
+
+SVGAnimatedEnumeration::~SVGAnimatedEnumeration() = default;
+
+// https://svgwg.org/svg2-draft/types.html#__svg__SVGAnimatedEnumeration__baseVal
+WebIDL::ExceptionOr<void> SVGAnimatedEnumeration::set_base_val(u16 base_val)
+{
+    // 1. Let value be the value being assigned to baseVal.
+    auto value = base_val;
+
+    // FIXME: 2. If value is 0 or is not the numeric type value for any value of the reflected attribute, then throw a
+    //    TypeError.
+    if (value == 0)
+        return WebIDL::SimpleException { WebIDL::SimpleExceptionType::TypeError, "invalid value for baseVal"sv };
+
+    // FIXME: 3. Otherwise, if the reflecting IDL attribute is orientType and value is SVG_MARKER_ORIENT_ANGLE, then set the
+    //    reflected attribute to the string "0".
+
+    // FIXME: 4. Otherwise, value is the numeric type value for a specific, single keyword value for the reflected attribute.
+    //    Set the reflected attribute to that value.
+    m_value = value;
+
+    return {};
+}
+
+void SVGAnimatedEnumeration::initialize(JS::Realm& realm)
+{
+    Base::initialize(realm);
+    WEB_SET_PROTOTYPE_FOR_INTERFACE(SVGAnimatedEnumeration);
+}
+
+// https://svgwg.org/svg2-draft/types.html#__svg__SVGAnimatedEnumeration__baseVal
+u16 SVGAnimatedEnumeration::base_or_anim_value() const
+{
+    // FIXME: 1. Let value be the value of the reflected attribute (using the attribute's initial value if it is not present or
+    //    invalid).
+
+    // FIXME: 2. Return the numeric type value for value, according to the reflecting IDL attribute's definition.
+
+    return m_value;
+}
+
+}

Libraries/LibWeb/SVG/SVGAnimatedEnumeration.h

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+/*
+ * Copyright (c) 2025, Jelle Raaijmakers <jelle@ladybird.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibWeb/Bindings/PlatformObject.h>
+
+namespace Web::SVG {
+
+// https://svgwg.org/svg2-draft/types.html#InterfaceSVGAnimatedEnumeration
+class SVGAnimatedEnumeration final : public Bindings::PlatformObject {
+    WEB_PLATFORM_OBJECT(SVGAnimatedEnumeration, Bindings::PlatformObject);
+    GC_DECLARE_ALLOCATOR(SVGAnimatedEnumeration);
+
+public:
+    [[nodiscard]] static GC::Ref<SVGAnimatedEnumeration> create(JS::Realm&, u16 value);
+    virtual ~SVGAnimatedEnumeration() override;
+
+    u16 base_val() const { return base_or_anim_value(); }
+    WebIDL::ExceptionOr<void> set_base_val(u16);
+
+    u16 anim_val() const { return base_or_anim_value(); }
+
+private:
+    SVGAnimatedEnumeration(JS::Realm&, u16 value);
+
+    virtual void initialize(JS::Realm&) override;
+
+    u16 base_or_anim_value() const;
+
+    u16 m_value;
+};
+
+}

Libraries/LibWeb/SVG/SVGAnimatedEnumeration.idl

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+// https://svgwg.org/svg2-draft/types.html#InterfaceSVGAnimatedEnumeration
+[Exposed=Window]
+interface SVGAnimatedEnumeration {
+             attribute unsigned short baseVal;
+    readonly attribute unsigned short animVal;
+};