1 | 'use strict';
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2 |
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3 | Object.defineProperty(exports, "__esModule", {
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4 | value: true
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5 | });
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6 |
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7 | var _getPrototypeOf = require('babel-runtime/core-js/object/get-prototype-of');
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8 |
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9 | var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);
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10 |
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11 | var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');
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12 |
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13 | var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);
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14 |
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15 | var _createClass2 = require('babel-runtime/helpers/createClass');
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16 |
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17 | var _createClass3 = _interopRequireDefault(_createClass2);
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18 |
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19 | var _possibleConstructorReturn2 = require('babel-runtime/helpers/possibleConstructorReturn');
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20 |
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21 | var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);
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22 |
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23 | var _inherits2 = require('babel-runtime/helpers/inherits');
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24 |
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25 | var _inherits3 = _interopRequireDefault(_inherits2);
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26 |
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27 | var _react = require('react');
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28 |
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29 | var _react2 = _interopRequireDefault(_react);
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30 |
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31 | var _propTypes = require('prop-types');
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32 |
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33 | var _propTypes2 = _interopRequireDefault(_propTypes);
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34 |
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35 | var _recompose = require('recompose');
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36 |
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37 | function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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38 |
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39 | var DetectVisibility = function (_React$Component) {
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40 | (0, _inherits3.default)(DetectVisibility, _React$Component);
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41 |
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42 | function DetectVisibility() {
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43 | var _ref;
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44 |
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45 | var _temp, _this, _ret;
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46 |
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47 | (0, _classCallCheck3.default)(this, DetectVisibility);
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48 |
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49 | for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
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50 | args[_key] = arguments[_key];
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51 | }
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52 |
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53 | return _ret = (_temp = (_this = (0, _possibleConstructorReturn3.default)(this, (_ref = DetectVisibility.__proto__ || (0, _getPrototypeOf2.default)(DetectVisibility)).call.apply(_ref, [this].concat(args))), _this), _this.state = {
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54 | bottomIsVisible: true
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55 | }, _this.handleScroll = function () {
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56 | var _this2 = _this,
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57 | _this2$props = _this2.props,
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58 | containerSelector = _this2$props.containerSelector,
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59 | isLocked = _this2$props.isLocked;
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60 |
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61 | var containerElement = document.querySelector(containerSelector);
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62 |
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63 | if (!isLocked) {
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64 | if (containerElement.getBoundingClientRect().bottom > 0) {
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65 | _this.setState({ bottomIsVisible: true });
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66 | } else {
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67 | _this.setState({ bottomIsVisible: false });
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68 | }
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69 | }
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70 | }, _this.componentDidMount = function () {
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71 | var _this3 = _this,
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72 | containerSelector = _this3.props.containerSelector;
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73 |
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74 | var containerElement = document.querySelector(containerSelector);
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75 | if (containerElement.getBoundingClientRect().bottom > 0) {
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76 | _this.setState({ bottomIsVisible: true });
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77 | } else {
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78 | _this.setState({ bottomIsVisible: false });
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79 | }
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80 | typeof window !== 'undefined' && window.addEventListener('scroll', _this.handleScroll);
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81 | }, _this.componentWillUnmount = function () {
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82 | window.removeEventListener('scroll', _this.handleScroll);
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83 | }, _temp), (0, _possibleConstructorReturn3.default)(_this, _ret);
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84 | }
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85 |
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86 | (0, _createClass3.default)(DetectVisibility, [{
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87 | key: 'render',
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88 | value: function render() {
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89 | var bottomIsVisible = this.state.bottomIsVisible,
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90 | children = this.props.children;
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91 |
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92 | return children({ bottomIsVisible: bottomIsVisible });
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93 | }
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94 | }]);
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95 | return DetectVisibility;
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96 | }(_react2.default.Component);
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97 |
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98 | DetectVisibility.propTypes = {
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99 | containerSelector: _propTypes2.default.string.isRequired
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100 | };
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101 | var enhance = (0, _recompose.compose)((0, _recompose.onlyUpdateForKeys)(['containerSelector']));
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102 | exports.default = enhance(DetectVisibility); |
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