zent/loading/lib/Loading.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 _getPosition = require('./getPosition');

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

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

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

    _this.state = {
      show: _this.props.show
    };

    ['show', 'setPosition', 'setWrapperRef'].forEach(function (item) {
      return _this[item] = _this[item].bind(_this);
    });
    return _this;
  }

  _createClass(Loading, [{
    key: 'show',
    value: function show(info) {
      if (info.show === this.state.show) {
        return;
      }

      if (info.show) {
        var target = this.props.target;
        if (target) {
          this.style = {
            left: (0, _getPosition.getElementLeft)(target),
            top: (0, _getPosition.getElementTop)(target),
            width: target.offsetWidth,
            height: target.offsetHeight
          };
        }
      }

      this.setState({
        show: info.show
      });
    }
  }, {
    key: 'setPosition',
    value: function setPosition() {
      if (!this.wrapper) {
        return;
      }

      this.wrapper.style.zIndex = this.props.zIndex;

      if (this.style) {
        this.wrapper.style.top = this.style.top + 'px';
        this.wrapper.style.left = this.style.left + 'px';
        this.wrapper.style.width = this.style.width + 'px';
        this.wrapper.style.height = this.style.height + 'px';
      } else {
        this.wrapper.style.position = 'fixed';
      }
    }
  }, {
    key: 'setWrapperRef',
    value: function setWrapperRef(name, el) {
      this[name] = el;
    }
  }, {
    key: 'componentDidMount',
    value: function componentDidMount() {
      this.setPosition();
    }
  }, {
    key: 'componentDidUpdate',
    value: function componentDidUpdate() {
      this.setPosition();
    }
  }, {
    key: 'componentWillReceiveProps',
    value: function componentWillReceiveProps(nextProps) {
      this.setState({
        show: nextProps.show
      });
    }
  }, {
    key: 'render',
    value: function render() {
      var _props = this.props,
          prefix = _props.prefix,
          className = _props.className,
          containerClass = _props.containerClass;


      if (this.props['static']) {
        return _react2['default'].createElement(
          'div',
          {
            className: prefix + '-loading-container ' + prefix + '-loading-container-static ' + containerClass,
            style: {
              height: this.props.children || !this.state.show ? 'initial' : this.props.height
            }
          },
          this.props.children,
          this.state.show && _react2['default'].createElement(
            'div',
            { className: prefix + '-page-loading ' + className },
            _react2['default'].createElement('div', { className: prefix + '-page-mask' })
          )
        );
      }

      return this.state.show && _react2['default'].createElement(
        'div',
        {
          className: prefix + '-page-loading ' + className,
          ref: this.setWrapperRef.bind(null, 'wrapper')
        },
        _react2['default'].createElement('div', { className: prefix + '-page-mask' })
      );
    }
  }]);

  return Loading;
}(_react.Component);

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