304105 2025-12-13 01:35:15 -0800 Expose `FECOMPOSITE_OPERATOR_LIGHTER` to WebIDL Interface and update it as highest enum value 2025-12-25 19:08:55 -0800 1 1 1 Unclassified WebKit SVG WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED EasyFix, GoodFirstBug, InRadar, WPTImpact P2 Normal --- 1 ahmad.saleem792 taher_ali karlcow sabouhallawa taher_ali webkit-bug-importer zimmermann oldest_to_newest 2165613 0 ahmad.saleem792 2025-12-13 01:35:15 -0800 Hi Team, While trying to look for reason, why we fail following test: https://wpt.fyi/results/svg/types/scripted/SVGAnimatedEnumeration-SVGFECompositeElement.html?label=master&label=experimental&aligned It seems that it is because of `FECOMPOSITE_OPERATOR_LIGHTER` being exposed in IDL for Firefox but not in Chrome / Blink and Safari / WebKit. Web Specification: https://drafts.csswg.org/filter-effects-1/#InterfaceSVGFECompositeElement WebKit: https://github.com/WebKit/WebKit/blob/462ddb30dffca856c17d210c957f46906455298f/Source/WebCore/svg/SVGFECompositeElement.idl#L37 Blink / Chromium: https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/renderer/core/svg/svg_fe_composite_element.idl;l=38;drc=e04c80528ebfd7eeca80306f5ccfcb27d9acf5e8 Gecko / Firefox: https://searchfox.org/firefox-main/rev/96eccf5af235e2f592e45fda4e79e6194448fc74/dom/webidl/SVGFECompositeElement.webidl#24 ^ Notice that Gecko has `const unsigned short SVG_FECOMPOSITE_OPERATOR_LIGHTER = 7;`. In case, if we have to fix, we need to add it to IDL and also update: https://github.com/WebKit/WebKit/blob/462ddb30dffca856c17d210c957f46906455298f/Source/WebCore/svg/SVGFECompositeElement.h#L33 from: CompositeOperationType::FECOMPOSITE_OPERATOR_ARITHMETIC to: CompositeOperationType::FECOMPOSITE_OPERATOR_LIGHTER ____________ Just raising, so we can fix it. It progress WPT, just to let know. Thanks! 2166605 1 webkit-bug-importer 2025-12-17 07:32:03 -0800 <rdar://problem/166704079> 2166612 2 taher_ali 2025-12-17 07:49:23 -0800 We may need to manually fix the test-case `LayoutTests/svg/dom/SVGAnimatedEnumeration-SVGFECompositeElement.html` because it's expecting a throw. 2167115 3 longsonr 2025-12-18 16:14:06 -0800 See https://github.com/w3c/svgwg/issues/424 2167119 4 karlcow 2025-12-18 16:24:39 -0800 yes specifically https://github.com/w3c/svgwg/issues/424#issuecomment-3194765718 2168006 5 taher_ali 2025-12-23 14:33:13 -0800 Pull request: https://github.com/WebKit/WebKit/pull/55841 2168222 6 ews-feeder 2025-12-25 19:08:53 -0800 Committed 304941@main (89a77dce2e2a): <https://commits.webkit.org/304941@main> Reviewed commits have been landed. Closing PR #55841 and removing active labels.