wix-style-react/dist/es/stories/DropdownLayout/ExampleInfiniteScroll.js

wix-style-react

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

import React from 'react';
import DropdownLayout from 'wix-style-react/DropdownLayout';

var generateOption = function generateOption(id) {
  return { id: id, value: 'options ' + id };
};

var ExampleInfiniteScroll = function (_React$Component) {
  _inherits(ExampleInfiniteScroll, _React$Component);

  function ExampleInfiniteScroll(props) {
    _classCallCheck(this, ExampleInfiniteScroll);

    var _this = _possibleConstructorReturn(this, (ExampleInfiniteScroll.__proto__ || Object.getPrototypeOf(ExampleInfiniteScroll)).call(this, props));

    _this.style = {
      display: 'inline-block',
      padding: '0 5px',
      width: '240px',
      lineHeight: '22px'
    };

    _this.generateData = function () {
      var newOptions = [];
      for (var i = 0; i < _this.itemsPerPage; i++) {
        newOptions.push(generateOption(_this.state.data.length + i));
      }
      _this.setState({ data: _this.state.data.concat(newOptions) });
    };

    _this.render = function () {
      return React.createElement(
        'div',
        { style: _this.style },
        React.createElement(DropdownLayout, {
          infiniteScroll: true,
          dataHook: 'infinite-scroll-dropdownLayout',
          visible: true,
          onSelect: function onSelect(item) {
            return alert(item.value + ' was selected!');
          },
          hasMore: _this.state.hasMore,
          loadMore: _this.loadMore,
          options: _this.state.data
        })
      );
    };

    _this.loadMore = _this.loadMore.bind(_this);
    _this.itemsPerPage = 15;
    _this.total = 300;
    _this.state = { hasMore: true, data: [] };
    return _this;
  }

  _createClass(ExampleInfiniteScroll, [{
    key: 'loadMore',
    value: function loadMore() {
      var _this2 = this;

      var loadMoreData = function loadMoreData() {
        if (_this2.state.data.length >= _this2.total) {
          _this2.setState({ hasMore: false });
        } else {
          _this2.generateData();
        }
      };
      setTimeout(loadMoreData, 500);
    }
  }]);

  return ExampleInfiniteScroll;
}(React.Component);

export { ExampleInfiniteScroll as default };