feat(react-motion): add replayKey prop to replay motion without remounting#36108
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feat(react-motion): add replayKey prop to replay motion without remounting#36108robertpenner wants to merge 10 commits into
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…nting Add an optional replayKey prop to MotionComponentProps. When the value changes, the animation effect re-runs — cancelling any in-progress animation and replaying from the start on the same DOM element, without remounting the component or its children. Includes tests verifying both replay behaviour and DOM continuity.
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… instead of recreating animations
…ing on replayKey change
…sts for callbacks and skip on replay
…ionHandle; add comments
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replayKeyprop toMotionComponentProps.onMotionStart/onMotionFinish), and skip-motion fast-forward on replay.Previous Behavior
To retrigger a motion animation on an already-mounted component, the only declarative option was to change the React
keyprop, which forces a full unmount and remount of the subtree. This destroys the DOM nodes, resets child component state, and loses focus — even when all you want is to replay the animation.New Behavior
MotionComponentaccepts an optionalreplayKeyprop (string | number). When the value changes, the animation replays from the beginning on the existing DOM element — cancelling any in-progress animation — without unmounting or remounting the component or its children. DOM continuity, focus, and child state are all preserved.Future Work