zent/loading/lib/LoadingInstance.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 _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; }; }();

var _class, _temp;

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

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

var _reactDom2 = _interopRequireDefault(_reactDom);

var _isBrowser = require('zent-utils/isBrowser');

var _isBrowser2 = _interopRequireDefault(_isBrowser);

var _Loading = require('./Loading');

var _Loading2 = _interopRequireDefault(_Loading);

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 Instance = (_temp = _class = function (_Component) {
  _inherits(Instance, _Component);

  function Instance() {
    _classCallCheck(this, Instance);

    return _possibleConstructorReturn(this, (Instance.__proto__ || Object.getPrototypeOf(Instance)).apply(this, arguments));
  }

  _createClass(Instance, [{
    key: 'componentDidMount',
    value: function componentDidMount() {
      this.renderLoading();
    }

    // 因为需要确保内部元素已经 render 完毕，所以使用 did，但是因此带来额外的对 show 字段的判断逻辑


    // 对外暴露的静态初始方法

  }, {
    key: 'componentDidUpdate',
    value: function componentDidUpdate() {
      this.renderLoading();
    }
  }, {
    key: 'componentWillUnmount',
    value: function componentWillUnmount() {
      if (this.instance) {
        var loadingContainer = this.instance.container;
        _reactDom2['default'].unmountComponentAtNode(this.instance.container);
        loadingContainer.parentNode.removeChild(loadingContainer);
      }
    }

    // 通过以下函数与组件通信

  }, {
    key: 'renderLoading',
    value: function renderLoading(target) {
      // static 方式，loading 将存在于文档流中
      if (this.props['static']) {
        return;
      }

      if (!this.instance) {
        if (!target) {
          target = _reactDom2['default'].findDOMNode(this);
        }
        this.instance = Instance.newInstance(_extends({}, this.props, {
          target: target
        }));
      }

      if (this.instance) {
        this.instance.show(_extends({}, this.props));
      }
    }
  }, {
    key: 'render',
    value: function render() {
      if (this.props['static']) {
        return _react2['default'].createElement(
          _Loading2['default'],
          this.props,
          this.props.children
        );
      }

      return this.props.children;
    }
  }]);

  return Instance;
}(_react.Component), _class.propTypes = {
  prefix: _react.PropTypes.string,
  className: _react.PropTypes.string,
  'static': _react.PropTypes.bool,
  show: _react.PropTypes.bool,
  zIndex: _react.PropTypes.number,
  containerClass: _react.PropTypes.string
}, _class.defaultProps = {
  prefix: 'zent',
  className: '',
  'static': true,
  show: false,
  height: 160,
  zIndex: 9998,
  containerClass: ''
}, _class.newInstance = function (props) {
  if (!_isBrowser2['default']) return;

  var div = document.createElement('div');
  div.className = props.prefix + '-loading-container ' + props.containerClass;
  document.body.appendChild(div);
  var loading = _reactDom2['default'].render(_react2['default'].createElement(_Loading2['default'], props), div);
  return {
    show: loading.show,
    container: div
  };
}, _class.on = function () {
  var _ref = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
      _ref$prefix = _ref.prefix,
      prefix = _ref$prefix === undefined ? 'zent' : _ref$prefix,
      _ref$className = _ref.className,
      className = _ref$className === undefined ? '' : _ref$className,
      _ref$containerClass = _ref.containerClass,
      containerClass = _ref$containerClass === undefined ? '' : _ref$containerClass,
      _ref$zIndex = _ref.zIndex,
      zIndex = _ref$zIndex === undefined ? 9998 : _ref$zIndex;

  if (!_isBrowser2['default']) return;

  if (!this.instance) {
    this.instance = this.newInstance({
      show: true,
      prefix: prefix,
      className: className,
      containerClass: containerClass,
      zIndex: zIndex
    });
  }

  this.instance.show({
    show: true
  });
}, _class.off = function () {
  if (!_isBrowser2['default']) return;

  if (!this.instance) return;

  this.instance.show({
    show: false
  });
}, _temp);
exports['default'] = Instance;
module.exports = exports['default'];