LibWeb: Implement SVGAnimatedLengthList

Author: gmta

Libraries/LibWeb/CMakeLists.txt

@@ -901,6 +901,7 @@ set(SOURCES
     SVG/SVGAElement.cpp
     SVG/SVGAnimatedEnumeration.cpp
     SVG/SVGAnimatedLength.cpp
+    SVG/SVGAnimatedLengthList.cpp
     SVG/SVGAnimatedNumber.cpp
     SVG/SVGAnimatedNumberList.cpp
     SVG/SVGAnimatedRect.cpp

Libraries/LibWeb/Forward.h

@@ -1094,6 +1094,7 @@ namespace Web::SVG {
 class Path;
 class SVGAnimatedEnumeration;
 class SVGAnimatedLength;
+class SVGAnimatedLengthList;
 class SVGAnimatedNumber;
 class SVGAnimatedNumberList;
 class SVGAnimatedRect;

Libraries/LibWeb/SVG/SVGAnimatedLengthList.cpp

@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2025, Jelle Raaijmakers <jelle@ladybird.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibWeb/Bindings/Intrinsics.h>
+#include <LibWeb/Bindings/SVGAnimatedLengthListPrototype.h>
+#include <LibWeb/SVG/SVGAnimatedLengthList.h>
+
+namespace Web::SVG {
+
+GC_DEFINE_ALLOCATOR(SVGAnimatedLengthList);
+
+GC::Ref<SVGAnimatedLengthList> SVGAnimatedLengthList::create(JS::Realm& realm, GC::Ref<SVGLengthList> base_val)
+{
+    return realm.create<SVGAnimatedLengthList>(realm, base_val);
+}
+
+SVGAnimatedLengthList::SVGAnimatedLengthList(JS::Realm& realm, GC::Ref<SVGLengthList> base_val)
+    : PlatformObject(realm)
+    , m_base_val(base_val)
+{
+}
+
+void SVGAnimatedLengthList::initialize(JS::Realm& realm)
+{
+    WEB_SET_PROTOTYPE_FOR_INTERFACE(SVGAnimatedLengthList);
+    Base::initialize(realm);
+}
+
+void SVGAnimatedLengthList::visit_edges(Visitor& visitor)
+{
+    Base::visit_edges(visitor);
+    visitor.visit(m_base_val);
+}
+
+}

Libraries/LibWeb/SVG/SVGAnimatedLengthList.h

@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2025, Jelle Raaijmakers <jelle@ladybird.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibWeb/Bindings/PlatformObject.h>
+#include <LibWeb/SVG/SVGLengthList.h>
+
+namespace Web::SVG {
+
+// https://svgwg.org/svg2-draft/types.html#InterfaceSVGAnimatedLengthList
+class SVGAnimatedLengthList final : public Bindings::PlatformObject {
+    WEB_PLATFORM_OBJECT(SVGAnimatedLengthList, Bindings::PlatformObject);
+    GC_DECLARE_ALLOCATOR(SVGAnimatedLengthList);
+
+public:
+    [[nodiscard]] static GC::Ref<SVGAnimatedLengthList> create(JS::Realm&, GC::Ref<SVGLengthList>);
+    virtual ~SVGAnimatedLengthList() override = default;
+
+    // https://svgwg.org/svg2-draft/types.html#__svg__SVGAnimatedLengthList__baseVal
+    GC::Ref<SVGLengthList> base_val() const { return m_base_val; }
+
+    // https://svgwg.org/svg2-draft/types.html#__svg__SVGAnimatedLengthList__animVal
+    GC::Ref<SVGLengthList> anim_val() const { return m_base_val; }
+
+private:
+    SVGAnimatedLengthList(JS::Realm&, GC::Ref<SVGLengthList>);
+
+    virtual void initialize(JS::Realm&) override;
+    virtual void visit_edges(Visitor&) override;
+
+    GC::Ref<SVGLengthList> m_base_val;
+};
+
+}

Libraries/LibWeb/SVG/SVGAnimatedLengthList.idl

@@ -0,0 +1,8 @@
+#import <SVG/SVGLengthList.idl>
+
+// https://svgwg.org/svg2-draft/types.html#InterfaceSVGAnimatedLengthList
+[Exposed=Window]
+interface SVGAnimatedLengthList {
+    [SameObject] readonly attribute SVGLengthList baseVal;
+    [SameObject] readonly attribute SVGLengthList animVal;
+};

Libraries/LibWeb/idl_files.cmake

@@ -371,6 +371,7 @@ libweb_js_bindings(TrustedTypes/TrustedTypePolicyFactory)
 libweb_js_bindings(SVG/SVGAElement)
 libweb_js_bindings(SVG/SVGAnimatedEnumeration)
 libweb_js_bindings(SVG/SVGAnimatedLength)
+libweb_js_bindings(SVG/SVGAnimatedLengthList)
 libweb_js_bindings(SVG/SVGAnimatedNumber)
 libweb_js_bindings(SVG/SVGAnimatedNumberList)
 libweb_js_bindings(SVG/SVGAnimatedRect)

Tests/LibWeb/Text/expected/all-window-properties.txt

@@ -365,6 +365,7 @@ Response
 SVGAElement
 SVGAnimatedEnumeration
 SVGAnimatedLength
+SVGAnimatedLengthList
 SVGAnimatedNumber
 SVGAnimatedNumberList
 SVGAnimatedRect

Tests/LibWeb/Text/expected/wpt-import/svg/idlharness.window.txt

@@ -2,8 +2,8 @@ Harness status: OK
 
 Found 1781 tests
 
-1020 Pass
-761 Fail
+1028 Pass
+753 Fail
 Pass	idl_test setup
 Pass	idl_test validation
 Pass	Partial interface Document: original interface defined
@@ -374,14 +374,14 @@ Fail	SVGAnimatedNumberList must be primary interface of objects.text.rotate
 Fail	Stringification of objects.text.rotate
 Fail	SVGAnimatedNumberList interface: objects.text.rotate must inherit property "baseVal" with the proper type
 Fail	SVGAnimatedNumberList interface: objects.text.rotate must inherit property "animVal" with the proper type
-Fail	SVGAnimatedLengthList interface: existence and properties of interface object
-Fail	SVGAnimatedLengthList interface object length
-Fail	SVGAnimatedLengthList interface object name
-Fail	SVGAnimatedLengthList interface: existence and properties of interface prototype object
-Fail	SVGAnimatedLengthList interface: existence and properties of interface prototype object's "constructor" property
-Fail	SVGAnimatedLengthList interface: existence and properties of interface prototype object's @@unscopables property
-Fail	SVGAnimatedLengthList interface: attribute baseVal
-Fail	SVGAnimatedLengthList interface: attribute animVal
+Pass	SVGAnimatedLengthList interface: existence and properties of interface object
+Pass	SVGAnimatedLengthList interface object length
+Pass	SVGAnimatedLengthList interface object name
+Pass	SVGAnimatedLengthList interface: existence and properties of interface prototype object
+Pass	SVGAnimatedLengthList interface: existence and properties of interface prototype object's "constructor" property
+Pass	SVGAnimatedLengthList interface: existence and properties of interface prototype object's @@unscopables property
+Pass	SVGAnimatedLengthList interface: attribute baseVal
+Pass	SVGAnimatedLengthList interface: attribute animVal
 Fail	SVGAnimatedLengthList must be primary interface of objects.text.x
 Fail	Stringification of objects.text.x
 Fail	SVGAnimatedLengthList interface: objects.text.x must inherit property "baseVal" with the proper type