LibWeb: Implement SVGAnimatedNumber

See https://www.w3.org/TR/2013/WD-SVG2-20130409/types.html#InterfaceSVGAnimatedNumber

Userland/Libraries/LibWeb/SVG/SVGAnimatedNumber.cpp

@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2023, MacDue <macdue@dueutil.tech>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibWeb/Bindings/Intrinsics.h>
+#include <LibWeb/SVG/SVGAnimatedNumber.h>
+
+namespace Web::SVG {
+
+WebIDL::ExceptionOr<JS::NonnullGCPtr<SVGAnimatedNumber>> SVGAnimatedNumber::create(JS::Realm& realm, float base_val, float anim_val)
+{
+    return MUST_OR_THROW_OOM(realm.heap().allocate<SVGAnimatedNumber>(realm, realm, base_val, anim_val));
+}
+
+SVGAnimatedNumber::SVGAnimatedNumber(JS::Realm& realm, float base_val, float anim_val)
+    : PlatformObject(realm)
+    , m_base_val(base_val)
+    , m_anim_val(anim_val)
+{
+}
+
+SVGAnimatedNumber::~SVGAnimatedNumber() = default;
+
+JS::ThrowCompletionOr<void> SVGAnimatedNumber::initialize(JS::Realm& realm)
+{
+    MUST_OR_THROW_OOM(Base::initialize(realm));
+    set_prototype(&Bindings::ensure_web_prototype<Bindings::SVGAnimatedNumberPrototype>(realm, "SVGAnimatedNumber"));
+
+    return {};
+}
+
+}

Userland/Libraries/LibWeb/SVG/SVGAnimatedNumber.h

@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2023, MacDue <macdue@dueutil.tech>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibWeb/Bindings/PlatformObject.h>
+#include <LibWeb/WebIDL/ExceptionOr.h>
+
+namespace Web::SVG {
+
+// https://www.w3.org/TR/SVG11/types.html#InterfaceSVGAnimatedNumber
+class SVGAnimatedNumber final : public Bindings::PlatformObject {
+    WEB_PLATFORM_OBJECT(SVGAnimatedNumber, Bindings::PlatformObject);
+
+public:
+    static WebIDL::ExceptionOr<JS::NonnullGCPtr<SVGAnimatedNumber>> create(JS::Realm&, float base_val, float anim_val);
+    virtual ~SVGAnimatedNumber() override;
+
+    float base_val() const { return m_base_val; }
+    float anim_val() const { return m_anim_val; }
+
+    void set_base_val(float base_val) { m_base_val = base_val; }
+    void set_anim_val(float anim_val) { m_anim_val = anim_val; }
+
+private:
+    SVGAnimatedNumber(JS::Realm&, float base_val, float anim_val);
+
+    virtual JS::ThrowCompletionOr<void> initialize(JS::Realm&) override;
+
+    float m_base_val;
+    float m_anim_val;
+};
+
+}

Userland/Libraries/LibWeb/SVG/SVGAnimatedNumber.idl

@@ -0,0 +1,6 @@
+// https://svgwg.org/svg2-draft/types.html#InterfaceSVGAnimatedNumber
+[Exposed=Window]
+interface SVGAnimatedNumber {
+           attribute float baseVal;
+  readonly attribute float animVal;
+};