zent/steps/lib/components/NumberSteps.js

一套前端设计语言和基于React的实现

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports['default'] = undefined;

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 = require('react');

var _react2 = _interopRequireDefault(_react);

var _reactDom = require('react-dom');

var _reactDom2 = _interopRequireDefault(_reactDom);

var _classnames = require('zent-utils/classnames');

var _classnames2 = _interopRequireDefault(_classnames);

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 NumberSteps = function (_Component) {
  _inherits(NumberSteps, _Component);

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

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

    _this.culcLastStepOffsetWidth = function () {
      var domNode = _reactDom2['default'].findDOMNode(_this);
      if (domNode.children.length > 0) {
        // +1 for fit edge bug of digit width, like 35.4px
        var lastStepOffsetWidth = domNode.lastChild.offsetWidth + 1;
        if (isNaN(lastStepOffsetWidth) || _this.state.lastStepOffsetWidth === lastStepOffsetWidth) {
          return;
        }

        _this.setState({ lastStepOffsetWidth: lastStepOffsetWidth });
      }
    };

    _this.state = {
      lastStepOffsetWidth: 0
    };
    return _this;
  }

  _createClass(NumberSteps, [{
    key: 'componentDidMount',
    value: function componentDidMount() {
      this.culcLastStepOffsetWidth();
    }
  }, {
    key: 'componentDidUpdate',
    value: function componentDidUpdate() {
      this.culcLastStepOffsetWidth();
    }
  }, {
    key: 'render',
    value: function render() {
      var _classNames,
          _this2 = this;

      var props = this.props;
      var className = props.className,
          prefix = props.prefix,
          children = props.children,
          current = props.current,
          status = props.status;

      var lastIndex = children.length - 1;
      var reLayouted = this.state.lastStepOffsetWidth > 0;
      var classString = (0, _classnames2['default'])((_classNames = {}, _defineProperty(_classNames, prefix + '-steps', true), _defineProperty(_classNames, '' + className, true), _classNames));

      return _react2['default'].createElement(
        'div',
        { className: classString },
        _react2['default'].Children.map(children, function (item, index) {
          var tailWidth = index === lastIndex || !reLayouted ? null : 100 / lastIndex + '%';

          var adjustMarginRight = index === lastIndex ? null : -(_this2.state.lastStepOffsetWidth / lastIndex + 1);

          var np = {
            stepNumber: (index + 1).toString(),
            stepLast: index === lastIndex,
            isCurrentStep: index === current - 1,
            isLastFinishStep: status === 'error' && index === current - 2,
            tailWidth: tailWidth,
            adjustMarginRight: adjustMarginRight,
            prefix: prefix,
            status: 'wait'
          };

          if (!item.props.status) {
            if (index === current - 1) {
              np.status = status;
            } else if (index < current - 1) {
              np.status = 'finish';
            } else {
              np.status = 'wait';
            }
          }

          return _react2['default'].cloneElement(item, np);
        }, this)
      );
    }
  }]);

  return NumberSteps;
}(_react.Component);

exports['default'] = NumberSteps;
module.exports = exports['default'];