lm-noticebar
Version:
* 作者：kanghongyan * 邮箱：khongyan@gmail.com * 版本：**`1.0.3`**
232 lines (176 loc) • 9.51 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
var _react = _interopRequireDefault(require('react'));
var _propTypes = _interopRequireDefault(require('prop-types'));
var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
var _jsxFileName = 'src\\ScrollH.js';
var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
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 _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return 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 gap = 2; // 留出dis间隔
var AutoPlay = function (_React$PureComponent) {
_inherits(AutoPlay, _React$PureComponent);
function AutoPlay() {
_classCallCheck(this, AutoPlay);
var _this = _possibleConstructorReturn(this, (AutoPlay.__proto__ || Object.getPrototypeOf(AutoPlay)).call(this));
_this.startPlay = function (dom) {
var contWh = dom.getBoundingClientRect().width; // container长度
var domWh = dom.scrollWidth; // 内容长度
/**
*
* @param scrollWh 需要滚动的距离
* @param duration 延迟时间
* @private
*/
var _play = function _play(scrollWh, duration) {
_this.timer = setTimeout(function () {
var currentTransform = window.getComputedStyle(dom).transform || window.getComputedStyle(dom).webkitTransform;
if (currentTransform !== 'none' && +currentTransform.split(',')[4].trim() <= -domWh) {
// 滚动完毕: 将内容移动到最右侧、立即_play
var posScale = _this._getPositionScale(_this.loopIndex, 1);
_this._resetStyle(posScale, function () {
_play(domWh + contWh * posScale - gap, 60);
});
} else {
var time = _this.props.speed * scrollWh;
_this.setState({
'WebkitTransition': '-webkit-transform ' + time + 's linear',
'transition': 'transform ' + time + 's linear',
'WebkitTransform': 'translate3d(-' + domWh + 'px, 0, 0)',
'transform': 'translate3d(-' + domWh + 'px, 0, 0)'
}, function () {
// 每隔500ms检查一次是否已经滚动完毕
_play(domWh, 500);
});
}
}, duration);
};
// _play(domWh, 1000)
_this._initStyle(function (posScale) {
_play(domWh + contWh * posScale, 1000);
});
};
_this._initStyle = function () {
var cd = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : function () {};
var startPosition = _this.props.startPosition;
if (!startPosition) {
return cd(0);
}
var posScale = _this._percentToDecimal(startPosition, 0);
_this._resetStyle(posScale, cd);
};
_this._resetStyle = function (scale) {
var cd = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : function () {};
var contWh = _this.dom.children[0].getBoundingClientRect().width; // container长度
var _gap = scale !== 0 ? gap : 0;
_this.setState({
'WebkitTransition': 'none',
'transition': 'none',
'WebkitTransform': 'translate3d(' + (contWh * scale - _gap) + 'px, 0, 0)',
'transform': 'translate3d(' + (contWh * scale - _gap) + 'px, 0, 0)'
}, function () {
cd(scale);
});
};
_this._getPositionScale = function (loopIndex) {
var defaultValue = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
var _this$props$loopPosit = _this.props.loopPosition,
loopPosition = _this$props$loopPosit === undefined ? [] : _this$props$loopPosit;
if (loopPosition && loopPosition.length) {
_this.loopIndex = loopIndex + 1 >= loopPosition.length ? 0 : loopIndex + 1;
return loopPosition.length > loopIndex ? _this._percentToDecimal(loopPosition[loopIndex], defaultValue) : defaultValue;
}
return defaultValue;
};
_this._percentToDecimal = function (percent) {
var defaultValue = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
try {
var str = (percent + '').replace("%", "");
return str / 100;
} catch (e) {
return defaultValue;
}
};
_this.state = {};
_this.timer = null;
_this.loopIndex = 0;
return _this;
}
_createClass(AutoPlay, [{
key: 'componentDidMount',
value: function componentDidMount() {
var contWh = this.dom.children[0].getBoundingClientRect().width;
var scrollWh = this.dom.children[0].scrollWidth;
if (Math.ceil(scrollWh) > Math.ceil(contWh)) {
this.startPlay(this.dom.children[0]);
}
}
}, {
key: 'componentWillUnmount',
value: function componentWillUnmount() {
clearTimeout(this.timer);
}
}, {
key: '_cloneChildren',
value: function _cloneChildren(children) {
var _this2 = this;
var _props = this.props,
height = _props.height,
style = _props.style;
var isObjectChildren = Object.prototype.toString.call(children) === '[object Object]';
var childrenArr = isObjectChildren ? [children] : children;
return childrenArr.map(function (item, index) {
return _react.default.cloneElement(item, {
key: index,
style: _extends({
height: height
}, style, _this2.state, {
whiteSpace: 'nowrap'
})
});
});
}
}, {
key: 'render',
value: function render() {
var _this3 = this;
var children = this.props.children;
return _react.default.createElement(
'div',
_defineProperty({ className: 'm-autoplay-wrap',
style: { overflow: 'hidden' },
ref: function ref(ele) {
_this3.dom = ele;
},
__source: {
fileName: _jsxFileName,
lineNumber: 172
},
__self: this
}, '__self', this),
this._cloneChildren(children)
);
}
}]);
return AutoPlay;
}(_react.default.PureComponent);
AutoPlay.propTypes = {
speed: _propTypes.default.number,
style: _propTypes.default.object,
height: _propTypes.default.number
};
AutoPlay.defaultProps = {
speed: 1.0 / 20, // 每秒移动多少像素
style: {},
height: 20
};
var _default = AutoPlay;
exports.default = _default;
module.exports = exports['default'];