react-fade-opacity
Version:
React.js fade out/in opacity effect
231 lines (194 loc) • 8.05 kB
JavaScript
(function webpackUniversalModuleDefinition(root, factory) {
if(typeof exports === 'object' && typeof module === 'object')
module.exports = factory(require("react"), require("prop-types"));
else if(typeof define === 'function' && define.amd)
define(["react", "prop-types"], factory);
else {
var a = typeof exports === 'object' ? factory(require("react"), require("prop-types")) : factory(root["react"], root["prop-types"]);
for(var i in a) (typeof exports === 'object' ? exports : root)[i] = a[i];
}
})(typeof self !== 'undefined' ? self : this, function(__WEBPACK_EXTERNAL_MODULE_1__, __WEBPACK_EXTERNAL_MODULE_2__) {
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/* 0 */
/***/ (function(module, exports, __webpack_require__) {
"use strict";
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 _react = __webpack_require__(1);
var _react2 = _interopRequireDefault(_react);
var _propTypes = __webpack_require__(2);
var _propTypes2 = _interopRequireDefault(_propTypes);
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 sleep = function sleep(ms) {
return new Promise(function (resolve) {
return setTimeout(resolve, ms);
});
};
var Fade = function (_React$Component) {
_inherits(Fade, _React$Component);
function Fade(props) {
_classCallCheck(this, Fade);
var _this = _possibleConstructorReturn(this, (Fade.__proto__ || Object.getPrototypeOf(Fade)).call(this, props));
_this.state = {
opacity: _this.props.in ? 0 : 1
};
_this.fade = function () {
var opacity = _this.state.opacity;
var _this$props = _this.props,
interval = _this$props.interval,
onFadeComplete = _this$props.onFadeComplete;
var timer = setInterval(function () {
if (opacity <= 0.1) {
_this.setState({ opacity: 0 });
clearInterval(timer);
if (onFadeComplete) {
// custom callback
onFadeComplete();
}
} else {
opacity -= opacity * 0.1;
_this.setState({ opacity: opacity });
}
}, interval);
};
_this.unfade = function () {
var opacity = _this.state.opacity;
var _this$props2 = _this.props,
interval = _this$props2.interval,
onFadeComplete = _this$props2.onFadeComplete;
var timer = setInterval(function () {
if (opacity >= 1) {
_this.setState({ opacity: 1 });
clearInterval(timer);
if (onFadeComplete) {
// custom callback
onFadeComplete();
}
} else {
if (opacity === 0) {
opacity = 0.1;
}
opacity += opacity * 0.1;
_this.setState({ opacity: opacity });
}
}, interval);
};
return _this;
}
_createClass(Fade, [{
key: 'componentDidMount',
value: function componentDidMount() {
var _this2 = this;
var delay = this.props.delay;
sleep(delay).then(function () {
// wait the delay before starting animation
if (_this2.props.in) {
_this2.unfade();
} else {
_this2.fade();
}
});
}
}, {
key: 'render',
value: function render() {
var opacity = this.state.opacity;
var children = this.props.children;
return _react2.default.cloneElement(children, {
style: { opacity: opacity }
});
}
}]);
return Fade;
}(_react2.default.Component);
Fade.propTypes = {
in: _propTypes2.default.bool,
interval: _propTypes2.default.number,
delay: _propTypes2.default.number,
chidlren: _propTypes2.default.node,
onFadeComplete: _propTypes2.default.func
};
Fade.defaultProps = {
in: false,
interval: 50,
delay: 6000
};
module.exports = Fade;
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});