chrome-web-share/dist/visibility.js

A lightweight React Share Button for mobile web with web share api integration, native intent support and fallback

'use strict';

Object.defineProperty(exports, "__esModule", {
    value: true
});

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; }; }();

var _class;

var _coreDecorators = require('core-decorators');

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

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; }

var Visibility = (0, _coreDecorators.autobind)(_class = function (_Component) {
    _inherits(Visibility, _Component);

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

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

        _this.winOut = false;
        _this.timer = null;
        return _this;
    }

    _createClass(Visibility, [{
        key: 'componentDidMount',
        value: function componentDidMount() {
            this.visibilityChange = null;
            this.hiddenProp = null;
            this.addVisibility();
        }
    }, {
        key: 'componentWillUnmount',
        value: function componentWillUnmount() {
            if (this.visibilityChange) {
                document.removeEventListener(this.visibilityChange, this.onVisibilitychange, false);
            }
            if (this.timer) {
                clearInterval(this.timer);
                this.timer = null;
            }
        }
    }, {
        key: 'onVisibilitychange',
        value: function onVisibilitychange() {
            switch (document[this.hiddenProp]) {
                case 'visible':
                    this.onWinFocus();
                    break;
                case 'hidden':
                    this.onWinBlur();
                    break;
            }
        }
    }, {
        key: 'onWinBlur',
        value: function onWinBlur() {
            this.winOut = true;
            this.props.onWinBlur();
        }
    }, {
        key: 'onWinFocus',
        value: function onWinFocus() {
            if (this.winOut) {
                this.winOut = false;
                this.props.onWinFocus();
            }
        }
    }, {
        key: 'isHidden',
        value: function isHidden() {
            return document[this.hiddenProp] === 'hidden';
        }
    }, {
        key: 'iOSFallback',
        value: function iOSFallback() {
            if (document.body.dataset.os === 'iOS') {
                this.onWinBlur();
                if (this.timer) {
                    clearInterval(this.timer);
                    this.timer = null;
                }
                this.timer = setInterval(this.onWinFocus, 3000);
            }
        }
    }, {
        key: 'addVisibility',
        value: function addVisibility() {
            if (this.visibilityChange) {
                document.removeEventListener(this.visibilityChange, this.onVisibilitychange, false);
            }

            var hidden = void 0,
                visibilityState = void 0,
                visibilityChange = void 0;

            if (typeof document.hidden !== 'undefined') {
                hidden = 'hidden';
                visibilityChange = 'visibilitychange';
                visibilityState = 'visibilityState';
            } else if (typeof document.mozHidden !== 'undefined') {
                hidden = 'mozHidden';
                visibilityChange = 'mozvisibilitychange';
                visibilityState = 'mozVisibilityState';
            } else if (typeof document.msHidden !== 'undefined') {
                hidden = 'msHidden';
                visibilityChange = 'msvisibilitychange';
                visibilityState = 'msVisibilityState';
            } else if (typeof document.webkitHidden !== 'undefined') {
                hidden = 'webkitHidden';
                visibilityChange = 'webkitvisibilitychange';
                visibilityState = 'webkitVisibilityState';
            }

            if (typeof document.addEventListener === 'undefined' || typeof hidden === 'undefined') {
                return;
            }

            this.visibilityChange = visibilityChange;
            this.hiddenProp = visibilityState;

            document.addEventListener(visibilityChange, this.onVisibilitychange, false);
        }
    }, {
        key: 'render',
        value: function render() {
            return _react2.default.createElement('div', null);
        }
    }]);

    return Visibility;
}(_react.Component)) || _class;

Visibility.propTypes = {
    onWinFocus: _react.PropTypes.func,
    onWinBlur: _react.PropTypes.func
};

Visibility.defaultProps = {
    onWinFocus: function onWinFocus() {},
    onWinBlur: function onWinBlur() {}
};

exports.default = Visibility;