@jdcfe/yep-react/es/count-down/index.js

一套移动端的React组件库

import _classCallCheck from "@babel/runtime/helpers/classCallCheck";
import _createClass from "@babel/runtime/helpers/createClass";
import _assertThisInitialized from "@babel/runtime/helpers/assertThisInitialized";
import _inherits from "@babel/runtime/helpers/inherits";
import _possibleConstructorReturn from "@babel/runtime/helpers/possibleConstructorReturn";
import _getPrototypeOf from "@babel/runtime/helpers/getPrototypeOf";

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

import * as React from 'react';
import classNames from 'classnames';
import noop from '../_utils/noop';
import TimerService from './TimerService';

var addZero = function addZero(n) {
  if (n < 10) {
    return "0".concat(n);
  }

  return "".concat(n);
};

var getFormateTime = function getFormateTime(time) {
  var dayStr = "".concat(Math.floor(time / 60 / 60 / 24));
  var hourStr = addZero(Math.floor(time / 60 / 60 % 24));
  var minuteStr = addZero(Math.floor(time / 60 % 60));
  var secondStr = addZero(Math.floor(time % 60));
  var dayNum = Math.floor(time / 60 / 60 / 24);
  var hourNum = Math.floor(time / 60 / 60 % 24);
  var minuteNum = Math.floor(time / 60 % 60);
  var secondNum = Math.floor(time % 60);
  return {
    dayStr: dayStr,
    hourStr: hourStr,
    minuteStr: minuteStr,
    secondStr: secondStr,
    dayNum: dayNum,
    hourNum: hourNum,
    minuteNum: minuteNum,
    secondNum: secondNum
  };
};

var CountDown = /*#__PURE__*/function (_React$PureComponent) {
  _inherits(CountDown, _React$PureComponent);

  var _super = _createSuper(CountDown);

  function CountDown(props) {
    var _this;

    _classCallCheck(this, CountDown);

    _this = _super.call(this, props);
    _this.state = {
      seconds: Math.round(props.leftTime)
    };
    _this.countDown = _this.countDown.bind(_assertThisInitialized(_this));
    _this.renderText = _this.renderText.bind(_assertThisInitialized(_this));
    return _this;
  }

  _createClass(CountDown, [{
    key: "componentDidMount",
    value: function componentDidMount() {
      TimerService.register(this.countDown);
    }
  }, {
    key: "componentWillUnmount",
    value: function componentWillUnmount() {
      TimerService.unregister(this.countDown);
    }
  }, {
    key: "componentDidUpdate",
    value: function componentDidUpdate(prevProps) {
      if (this.props.leftTime !== prevProps.leftTime) {
        //清掉定时器，再重新注册定时器，才能保证1s后减1，否则是按之前的定时器去减
        //暂时不按这种方式，有性能
        //TimerService.unregister(this.countDown);
        //TimerService.register(this.countDown);
        this.setState({
          seconds: Math.round(this.props.leftTime)
        });
      }

      if (this.props.leftTime >= 0 && this.state.seconds <= 0) {
        TimerService.register(this.countDown);
      }
    }
  }, {
    key: "countDown",
    value: function countDown() {
      var _this$props = this.props,
          onEnd = _this$props.onEnd,
          onChange = _this$props.onChange;
      var seconds = this.state.seconds - 1;
      this.setState({
        seconds: seconds
      });
      onChange && onChange(seconds);

      if (seconds <= 0) {
        TimerService.unregister(this.countDown);
        onEnd && onEnd();
      }
    }
  }, {
    key: "renderText",
    value: function renderText(date) {
      var _this$props2 = this.props,
          children = _this$props2.children,
          prefixCls = _this$props2.prefixCls;

      if (children) {
        return children(date);
      }

      var hourStr = date.hourStr,
          minuteStr = date.minuteStr,
          secondStr = date.secondStr;
      return /*#__PURE__*/React.createElement("div", {
        className: "".concat(prefixCls, "-default")
      }, /*#__PURE__*/React.createElement("span", {
        className: "".concat(prefixCls, "-default-box")
      }, hourStr), ":", /*#__PURE__*/React.createElement("span", {
        className: "".concat(prefixCls, "-default-box")
      }, minuteStr), ":", /*#__PURE__*/React.createElement("span", {
        className: "".concat(prefixCls, "-default-box")
      }, secondStr));
    }
  }, {
    key: "render",
    value: function render() {
      var _this$props3 = this.props,
          prefixCls = _this$props3.prefixCls,
          overText = _this$props3.overText,
          className = _this$props3.className;
      var cls = classNames(prefixCls, className);
      var restTime = this.state.seconds;
      var isOver = restTime <= 0;
      var date = getFormateTime(restTime);
      return /*#__PURE__*/React.createElement("div", {
        className: cls
      }, isOver && overText ? overText : this.renderText(date));
    }
  }]);

  return CountDown;
}(React.PureComponent);

export { CountDown as default };
CountDown.defaultProps = {
  prefixCls: 'Yep-count-down',
  style: {},
  onEnd: noop
};