react-native-reanimated/lib/module/css/native/normalization/common/settings.js

More powerful alternative to Animated library for React Native.

'use strict';

import { ReanimatedError } from '../../../../common';
import { VALID_PREDEFINED_TIMING_FUNCTIONS } from '../../../constants';
import { isPredefinedTimingFunction, normalizeTimeUnit } from '../../../utils';
export const ERROR_MESSAGES = {
  invalidDelay: timeUnit => `Invalid delay "${timeUnit}". Expected a number, "ms", or "s".`,
  invalidDuration: duration => `Invalid duration "${duration}". Expected a number, "ms", or "s".`,
  negativeDuration: duration => `Duration cannot be negative, received "${duration}".`,
  invalidPredefinedTimingFunction: timingFunction => `Invalid predefined timing function "${timingFunction}". Supported values are: ${VALID_PREDEFINED_TIMING_FUNCTIONS.join(', ')}.`,
  invalidParametrizedTimingFunction: timingFunction => `Invalid parametrized timing function "${timingFunction?.toString()}".`
};
export function normalizeDelay(delay = 0) {
  const delayMs = normalizeTimeUnit(delay);
  if (delayMs === null) {
    throw new ReanimatedError(ERROR_MESSAGES.invalidDelay(delay));
  }
  return delayMs;
}
export function normalizeDuration(duration = 0) {
  const durationMs = normalizeTimeUnit(duration);
  if (durationMs === null) {
    throw new ReanimatedError(ERROR_MESSAGES.invalidDuration(duration));
  } else if (durationMs < 0) {
    throw new ReanimatedError(ERROR_MESSAGES.negativeDuration(duration));
  }
  return durationMs;
}
export function normalizeTimingFunction(timingFunction = 'ease') {
  if (typeof timingFunction === 'string') {
    if (!isPredefinedTimingFunction(timingFunction)) {
      throw new ReanimatedError(ERROR_MESSAGES.invalidPredefinedTimingFunction(timingFunction));
    }
    return timingFunction;
  }
  if (!timingFunction.normalize || typeof timingFunction.normalize !== 'function') {
    throw new ReanimatedError(ERROR_MESSAGES.invalidParametrizedTimingFunction(timingFunction));
  }
  return timingFunction.normalize();
}
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