wix-style-react/dist/es/src/CarouselWIP/utils.js

wix-style-react

export var includes = function includes(val, arr) {
  return arr.includes ? arr.includes(val) : !!arr.filter(function (item) {
    return item === val;
  }).length;
};

var wrapAroundValue = function wrapAroundValue(val, max) {
  return (val % max + max) % max;
};

var hardBoundedValue = function hardBoundedValue(val, max) {
  return Math.max(0, Math.min(max, val));
};

export var normalizeIndex = function normalizeIndex(idx, len) {
  var wrap = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
  return wrap ? wrapAroundValue(idx, len) : hardBoundedValue(idx, len - 1);
};
export var values = Object.values || function (obj) {
  return Object.keys(obj).map(function (key) {
    return obj[key];
  });
};
export var nop = function nop() {};
export var easeOutQuint = function easeOutQuint(t) {
  var n = t;
  return 1 + --n * Math.pow(n, 4);
};
var fakeChild = {
  getBoundingClientRect: function getBoundingClientRect() {
    return {};
  }
};
export var isWhollyInView = function isWhollyInView(parent) {
  return function () {
    var child = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : fakeChild;

    var _child$getBoundingCli = child.getBoundingClientRect(),
        cLeft = _child$getBoundingCli.left,
        cRight = _child$getBoundingCli.right;

    var _parent$getBoundingCl = parent.getBoundingClientRect(),
        pLeft = _parent$getBoundingCl.left,
        pRight = _parent$getBoundingCl.right; // 5px threshold


    return cLeft >= pLeft - 5 && cRight <= pRight + 5;
  };
};
export var animate = function animate(el) {
  var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
      _ref$delta = _ref.delta,
      delta = _ref$delta === void 0 ? 0 : _ref$delta,
      _ref$immediate = _ref.immediate,
      immediate = _ref$immediate === void 0 ? false : _ref$immediate,
      _ref$duration = _ref.duration,
      duration = _ref$duration === void 0 ? 500 : _ref$duration,
      _ref$easing = _ref.easing,
      easing = _ref$easing === void 0 ? easeOutQuint : _ref$easing,
      _ref$prop = _ref.prop,
      prop = _ref$prop === void 0 ? 'scrollTop' : _ref$prop;

  return new Promise(function (res) {
    if (!delta) {
      return res();
    }

    var initialVal = el[prop];

    if (immediate) {
      el[prop] = initialVal + delta;
      return res();
    }

    var startTime = null;

    var step = function step(timestamp) {
      if (!startTime) {
        startTime = timestamp;
      }

      var progressTime = timestamp - startTime;
      var progressRatio = easing(progressTime / duration);
      el[prop] = initialVal + delta * progressRatio;

      if (progressTime < duration) {
        window.requestAnimationFrame(step);
      } else {
        el[prop] = initialVal + delta;
        res();
      }
    };

    window.requestAnimationFrame(step);
  });
};