svelte-motion/src/utils/transform.js

Svelte animation library based on the React library framer-motion.

/** 
based on framer-motion@4.0.3,
Copyright (c) 2018 Framer B.V.
*/
import {fixed} from './fix-process-env';
import { interpolate } from 'popmotion';

var isCustomValueType = function (v) {
    return typeof v === "object" && v.mix;
};
var getMixer = function (v) { return (isCustomValueType(v) ? v.mix : undefined); };
function transform() {
    var args = [];
    for (var _i = 0; _i < arguments.length; _i++) {
        args[_i] = arguments[_i];
    }
    var useImmediate = !Array.isArray(args[0]);
    var argOffset = useImmediate ? 0 : -1;
    var inputValue = args[0 + argOffset];
    var inputRange = args[1 + argOffset];
    var outputRange = args[2 + argOffset];
    var options = args[3 + argOffset];
    var interpolator = interpolate(inputRange, outputRange, Object.assign({ mixer: getMixer(outputRange[0]) }, options));
    return useImmediate ? interpolator(inputValue) : interpolator;
}

export { transform };