32 lines
898 B
JavaScript
32 lines
898 B
JavaScript
import { MotionGlobalConfig } from '../utils/GlobalConfig.mjs';
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import { frameData } from './frame.mjs';
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let now;
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function clearTime() {
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now = undefined;
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}
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/**
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* An eventloop-synchronous alternative to performance.now().
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*
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* Ensures that time measurements remain consistent within a synchronous context.
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* Usually calling performance.now() twice within the same synchronous context
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* will return different values which isn't useful for animations when we're usually
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* trying to sync animations to the same frame.
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*/
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const time = {
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now: () => {
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if (now === undefined) {
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time.set(frameData.isProcessing || MotionGlobalConfig.useManualTiming
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? frameData.timestamp
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: performance.now());
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}
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return now;
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},
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set: (newTime) => {
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now = newTime;
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queueMicrotask(clearTime);
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},
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};
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export { time };
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