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import { raf, Rafz } from '@react-spring/rafz'
import {
OneOrMore,
InterpolatorConfig,
InterpolatorArgs,
} from '@react-spring/types'
import { FluidValue } from './fluids'
import type { OpaqueAnimation } from './FrameLoop'
import { noop } from './helpers'
//
// Required
//
export let createStringInterpolator: (
config: InterpolatorConfig<string>
) => (input: number) => string
//
// Optional
//
export let to: <Input, Output>(
source: OneOrMore<FluidValue>,
args: InterpolatorArgs<Input, Output>
) => FluidValue<Output>
export let colors = null as { [key: string]: number } | null
export let skipAnimation = false as boolean
export let willAdvance: (animation: OpaqueAnimation) => void = noop
//
// Configuration
//
export interface AnimatedGlobals {
/** Returns a new `Interpolation` object */
to?: typeof to
/** Used to measure frame length. Read more [here](https://developer.mozilla.org/en-US/docs/Web/API/Performance/now) */
now?: typeof raf.now
/** Provide custom color names for interpolation */
colors?: typeof colors
/** Make all animations instant and skip the frameloop entirely */
skipAnimation?: typeof skipAnimation
/** Provide custom logic for string interpolation */
createStringInterpolator?: typeof createStringInterpolator
/** Schedule a function to run on the next frame */
requestAnimationFrame?: (cb: () => void) => void
/** Event props are called with `batchedUpdates` to reduce extraneous renders */
batchedUpdates?: typeof raf.batchedUpdates
/** @internal Exposed for testing purposes */
willAdvance?: typeof willAdvance
/** sets the global frameLoop setting for the global raf instance */
frameLoop?: Rafz['frameLoop']
}
export const assign = (globals: AnimatedGlobals) => {
if (globals.to) to = globals.to
if (globals.now) raf.now = globals.now
if (globals.colors !== undefined) colors = globals.colors
if (globals.skipAnimation != null) skipAnimation = globals.skipAnimation
if (globals.createStringInterpolator)
createStringInterpolator = globals.createStringInterpolator
if (globals.requestAnimationFrame) raf.use(globals.requestAnimationFrame)
if (globals.batchedUpdates) raf.batchedUpdates = globals.batchedUpdates
if (globals.willAdvance) willAdvance = globals.willAdvance
if (globals.frameLoop) raf.frameLoop = globals.frameLoop
}
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