popmotion-pose/lib/dom/dimensions.js

A declarative animation library for HTML and SVG

import { percent } from 'style-value-types';
export default (function (element) {
    var hasMeasured = false;
    var current = {
        width: 0,
        height: 0,
        top: 0,
        left: 0,
        bottom: 0,
        right: 0
    };
    return {
        get: function (measurement) { return (measurement ? current[measurement] : current); },
        measure: function () {
            current = element.getBoundingClientRect();
            hasMeasured = true;
            return current;
        },
        measurementAsPixels: function (measurement, value, type) {
            return type === percent
                ? (typeof value === 'string' ? parseFloat(value) : value) /
                    100 *
                    current[measurement]
                : value;
        },
        has: function () { return hasMeasured; }
    };
});
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