rc-tile-map/lib/MapComponent.js

地图组件

'use strict';

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

var _react = require('react');

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

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 EVENTS_RE = exports.EVENTS_RE = /^on(.+)$/i;

var MapComponent = function (_Component) {
  _inherits(MapComponent, _Component);

  function MapComponent(props, context) {
    _classCallCheck(this, MapComponent);

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

    _this._mapEvents = {};
    return _this;
  }

  _createClass(MapComponent, [{
    key: 'componentWillMount',
    value: function componentWillMount() {
      this._mapEvents = this.extractEvents(this.props);
    }
  }, {
    key: 'componentDidMount',
    value: function componentDidMount() {
      this.bindEvents(this._mapEvents, {});
    }
  }, {
    key: 'componentWillReceiveProps',
    value: function componentWillReceiveProps(nextProps) {
      var next = this.extractEvents(nextProps);
      this._mapEvents = this.bindEvents(next, this._mapEvents);
    }
  }, {
    key: 'componentWillUnmount',
    value: function componentWillUnmount() {
      var el = this.componentInstance;
      if (!el) return;

      (0, _lodash.forEach)(this._mapEvents, function (cb, ev) {
        el.removeEventListener(ev, cb);
      });
    }
  }, {
    key: 'extractEvents',
    value: function extractEvents(props) {
      return (0, _lodash.reduce)((0, _lodash.keys)(props), function (res, prop) {
        if (EVENTS_RE.test(prop)) {
          var key = prop.replace(EVENTS_RE, function (match, p) {
            return p.substr(0, 1).toLowerCase() + p.substr(1, p.length - 1);
          });
          if (props[prop] != null) {
            res[key] = props[prop];
          }
        }
        return res;
      }, {});
    }
  }, {
    key: 'bindEvents',
    value: function bindEvents(next, prev) {
      var el = this.componentInstance;
      if (el == null || el.addEventListener == null) return {};

      var diff = (0, _lodash.clone)(prev);
      (0, _lodash.forEach)(prev, function (cb, ev) {
        if (!next[ev] || cb !== next[ev]) {
          delete diff[ev];
          el.removeEventListener(ev, cb);
        }
      });

      (0, _lodash.forEach)(next, function (cb, ev) {
        if (!prev[ev] || cb !== prev[ev]) {
          diff[ev] = cb;
          el.addEventListener(ev, cb);
        }
      });

      return diff;
    }
  }, {
    key: 'getElementsByClassName',
    value: function getElementsByClassName(dom, className) {
      if (!dom.getElementsByTagName) {
        return dom;
      }
      // 解决IE8之类不支持getElementsByClassName
      if (!dom.getElementsByClassName) {
        var children = dom.getElementsByTagName('*');
        var elements = [];
        for (var i = 0; i < children.length; i++) {
          var child = children[i];
          var classNames = child.className.split(' ');
          for (var j = 0; j < classNames.length; j++) {
            if (classNames[j] === className) {
              elements.push(child);
              break;
            }
          }
        }
        return elements;
      } else {
        return dom.getElementsByClassName(className);
      }
    }
  }, {
    key: 'fireEvent',
    value: function fireEvent(type, data) {
      var el = this.componentInstance;
      if (el) el.dispatchEvent(type, data);
    }
  }, {
    key: 'getOptions',
    value: function getOptions(props) {
      var pane = props.pane == null ? this.context.pane : props.pane;
      return pane ? _extends({}, props, { pane: pane }) : props;
    }
  }, {
    key: 'getHtmlDomByReactDom',
    value: function getHtmlDomByReactDom(reactDom) {
      if ((0, _lodash.isString)(reactDom)) {
        return reactDom;
      } else {
        var section = document.createElement('section');
        (0, _reactDom.render)(reactDom, section);
        return section;
      }
    }
  }, {
    key: 'bindContentEvents',
    value: function bindContentEvents(contentEvents, dom, markerInstance, componentInstance) {
      var _this2 = this;

      if (contentEvents) {
        (0, _lodash.forEach)(contentEvents, function (evtFun, evtName) {
          var domNow = evtName.indexOf('.') > 0 ? _this2.getElementsByClassName(dom, evtName.split('.')[0])[0] : dom;
          var evtNameNow = evtName.indexOf('.') > 0 ? evtName.split('.')[1] : evtName;
          if (domNow.addEventListener) {
            domNow.addEventListener(evtNameNow, function (evt) {
              evtFun(evt, markerInstance, _this2.componentInstance);
            });
          } else if (domNow.attachEvent) {
            domNow.attachEvent('on' + evtNameNow, function (evt) {
              evtFun(evt, markerInstance, _this2.componentInstance);
            });
          }
        });
      }
    }
  }, {
    key: 'updatePropsBySetFun',
    value: function updatePropsBySetFun(funcName, fromProp, toProp) {
      if (!(0, _lodash.isEqual)(fromProp, toProp)) {
        return this.componentInstance[funcName](toProp);
      }
    }
  }, {
    key: 'updatePropsByBoolFun',
    value: function updatePropsByBoolFun(funcNameTrue, funcNameFalse, fromProp, toProp) {
      if (fromProp !== toProp) {
        if (toProp === true) {
          this.componentInstance[funcNameTrue]();
        } else {
          this.componentInstance[funcNameFalse]();
        }
      }
    }
  }]);

  return MapComponent;
}(_react.Component);

exports['default'] = MapComponent;