1 | 'use strict';
|
2 |
|
3 | Object.defineProperty(exports, "__esModule", {
|
4 | value: true
|
5 | });
|
6 |
|
7 | var _getPrototypeOf = require('babel-runtime/core-js/object/get-prototype-of');
|
8 |
|
9 | var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);
|
10 |
|
11 | var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');
|
12 |
|
13 | var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);
|
14 |
|
15 | var _createClass2 = require('babel-runtime/helpers/createClass');
|
16 |
|
17 | var _createClass3 = _interopRequireDefault(_createClass2);
|
18 |
|
19 | var _possibleConstructorReturn2 = require('babel-runtime/helpers/possibleConstructorReturn');
|
20 |
|
21 | var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);
|
22 |
|
23 | var _inherits2 = require('babel-runtime/helpers/inherits');
|
24 |
|
25 | var _inherits3 = _interopRequireDefault(_inherits2);
|
26 |
|
27 | var _react = require('react');
|
28 |
|
29 | var _propTypes = require('prop-types');
|
30 |
|
31 | var _propTypes2 = _interopRequireDefault(_propTypes);
|
32 |
|
33 | function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
|
34 |
|
35 | var originalBodyOverflow = null;
|
36 | var lockingCounter = 0;
|
37 |
|
38 | var AutoLockScrolling = function (_Component) {
|
39 | (0, _inherits3.default)(AutoLockScrolling, _Component);
|
40 |
|
41 | function AutoLockScrolling() {
|
42 | var _ref;
|
43 |
|
44 | var _temp, _this, _ret;
|
45 |
|
46 | (0, _classCallCheck3.default)(this, AutoLockScrolling);
|
47 |
|
48 | for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
|
49 | args[_key] = arguments[_key];
|
50 | }
|
51 |
|
52 | return _ret = (_temp = (_this = (0, _possibleConstructorReturn3.default)(this, (_ref = AutoLockScrolling.__proto__ || (0, _getPrototypeOf2.default)(AutoLockScrolling)).call.apply(_ref, [this].concat(args))), _this), _this.locked = false, _temp), (0, _possibleConstructorReturn3.default)(_this, _ret);
|
53 | }
|
54 |
|
55 | (0, _createClass3.default)(AutoLockScrolling, [{
|
56 | key: 'componentDidMount',
|
57 | value: function componentDidMount() {
|
58 | if (this.props.lock === true) {
|
59 | this.preventScrolling();
|
60 | }
|
61 | }
|
62 | }, {
|
63 | key: 'componentWillReceiveProps',
|
64 | value: function componentWillReceiveProps(nextProps) {
|
65 | if (this.props.lock !== nextProps.lock) {
|
66 | if (nextProps.lock) {
|
67 | this.preventScrolling();
|
68 | } else {
|
69 | this.allowScrolling();
|
70 | }
|
71 | }
|
72 | }
|
73 | }, {
|
74 | key: 'componentWillUnmount',
|
75 | value: function componentWillUnmount() {
|
76 | this.allowScrolling();
|
77 | }
|
78 |
|
79 |
|
80 |
|
81 | }, {
|
82 | key: 'preventScrolling',
|
83 | value: function preventScrolling() {
|
84 | if (this.locked === true) {
|
85 | return;
|
86 | }
|
87 |
|
88 | lockingCounter = lockingCounter + 1;
|
89 | this.locked = true;
|
90 |
|
91 |
|
92 | if (lockingCounter === 1) {
|
93 | var body = document.getElementsByTagName('body')[0];
|
94 | originalBodyOverflow = body.style.overflow;
|
95 | body.style.overflow = 'hidden';
|
96 | }
|
97 | }
|
98 | }, {
|
99 | key: 'allowScrolling',
|
100 | value: function allowScrolling() {
|
101 | if (this.locked === true) {
|
102 | lockingCounter = lockingCounter - 1;
|
103 | this.locked = false;
|
104 | }
|
105 |
|
106 | if (lockingCounter === 0 && originalBodyOverflow !== null) {
|
107 | var body = document.getElementsByTagName('body')[0];
|
108 | body.style.overflow = originalBodyOverflow || '';
|
109 | originalBodyOverflow = null;
|
110 | }
|
111 | }
|
112 | }, {
|
113 | key: 'render',
|
114 | value: function render() {
|
115 | return null;
|
116 | }
|
117 | }]);
|
118 | return AutoLockScrolling;
|
119 | }(_react.Component);
|
120 |
|
121 | AutoLockScrolling.propTypes = process.env.NODE_ENV !== "production" ? {
|
122 | lock: _propTypes2.default.bool.isRequired
|
123 | } : {};
|
124 | exports.default = AutoLockScrolling; |
\ | No newline at end of file |