fix: unset marker style properties that become undefined (#2595)#2596
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MohammadYusif wants to merge 1 commit into
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fix: unset marker style properties that become undefined (#2595)#2596MohammadYusif wants to merge 1 commit into
MohammadYusif wants to merge 1 commit into
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applyReactStyle only wrote the keys present in the incoming style object
and never removed keys that were previously applied but later became
undefined or were omitted. Because assigning undefined to a CSS property
is a no-op, the stale value lingered on the element (e.g. a Marker's
background stayed set after style went from {background: 'red'} to
{background: undefined} or {}).
Track the keys applied to each element via a WeakMap and clear any that
are no longer present on the next update. Applied to both the react-mapbox
and react-maplibre variants, with regression tests covering the
undefined-value and omitted-key cases.
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Summary
<Marker style={...}>did not unset a CSS property when it changed toundefinedor was removed from the style object (e.g.{background: 'red'}->{background: undefined}or{}leftbackgroundset).applyReactStyleonly wrote the keys present in the incoming style object and never cleared previously-applied keys; assigningundefinedto a style property is a no-op, so stale values lingered.Changes
modules/react-mapbox/src/utils/apply-react-style.ts/modules/react-maplibre/src/utils/apply-react-style.ts: track applied keys per element via aWeakMap, skipundefined/nullvalues, and clear any previously-applied key that is no longer present.modules/react-mapbox/test/utils/apply-react-style.spec.js/modules/react-maplibre/test/utils/apply-react-style.spec.js: add regression test covering the{background: undefined}and{}cases.Fixes #2595