@foreverrbum/ethsign/dist/components/Slider/useSliding.js

This package will allow you to electronically sign documents within your application

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var _react = require("react");

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }

function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _iterableToArrayLimit(arr, i) { var _i = arr == null ? null : typeof Symbol !== "undefined" && arr[Symbol.iterator] || arr["@@iterator"]; if (_i == null) return; var _arr = []; var _n = true; var _d = false; var _s, _e; try { for (_i = _i.call(arr); !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

var PADDINGS = 110;

var useSliding = function useSliding(elementWidth, countElements) {
  var containerRef = (0, _react.useRef)(null);

  var _useState = (0, _react.useState)(0),
      _useState2 = _slicedToArray(_useState, 2),
      containerWidth = _useState2[0],
      setContainerWidth = _useState2[1];

  var _useState3 = (0, _react.useState)(0),
      _useState4 = _slicedToArray(_useState3, 2),
      distance = _useState4[0],
      setDistance = _useState4[1];

  var _useState5 = (0, _react.useState)(0),
      _useState6 = _slicedToArray(_useState5, 2),
      totalInViewport = _useState6[0],
      setTotalInViewport = _useState6[1];

  var _useState7 = (0, _react.useState)(0),
      _useState8 = _slicedToArray(_useState7, 2),
      viewed = _useState8[0],
      setViewed = _useState8[1];

  (0, _react.useEffect)(function () {
    var containerWidth = containerRef.current.clientWidth - PADDINGS;
    setContainerWidth(containerWidth);
    setTotalInViewport(Math.floor(containerWidth / elementWidth));
    console.log(Math.floor(containerWidth / elementWidth));
  }, [containerRef.current]);

  var handlePrev = function handlePrev() {
    setViewed(viewed - totalInViewport);
    setDistance(distance + elementWidth * totalInViewport);
  };

  var handleNext = function handleNext() {
    setViewed(viewed + totalInViewport);
    console.log(viewed + totalInViewport);
    setDistance(-elementWidth * (viewed + totalInViewport));
  };

  var slideProps = {
    style: {
      transform: "translate3d(".concat(distance, "px, 0, 0)")
    }
  };
  var hasPrev = distance < 0;
  var hasNext = viewed + totalInViewport < countElements;
  return {
    handlePrev: handlePrev,
    handleNext: handleNext,
    slideProps: slideProps,
    containerRef: containerRef,
    hasPrev: hasPrev,
    hasNext: hasNext
  };
};

var _default = useSliding;
exports.default = _default;