react-select2-wrapper/lib/components/Select2.js

React component for Select2

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

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 _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

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 _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

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

var _reactDom2 = _interopRequireDefault(_reactDom);

var _shallowEqualFuzzy = require('shallow-equal-fuzzy');

var _shallowEqualFuzzy2 = _interopRequireDefault(_shallowEqualFuzzy);

var _jquery = require('jquery');

var _jquery2 = _interopRequireDefault(_jquery);

require('select2');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }

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 namespace = 'react-select2-wrapper';

var Select2 = function (_Component) {
  _inherits(Select2, _Component);

  function Select2(props) {
    _classCallCheck(this, Select2);

    var _this = _possibleConstructorReturn(this, (Select2.__proto__ || Object.getPrototypeOf(Select2)).call(this, props));

    _this.el = null;
    _this.forceUpdateValue = false;
    _this.initialRender = true;
    return _this;
  }

  _createClass(Select2, [{
    key: 'componentDidMount',
    value: function componentDidMount() {
      this.initSelect2(this.props);
      this.updateValue();
    }
  }, {
    key: 'componentWillReceiveProps',
    value: function componentWillReceiveProps(nextProps) {
      this.initialRender = false;
      this.updSelect2(nextProps);
    }
  }, {
    key: 'componentDidUpdate',
    value: function componentDidUpdate() {
      this.updateValue();
    }
  }, {
    key: 'componentWillUnmount',
    value: function componentWillUnmount() {
      this.destroySelect2();
    }
  }, {
    key: 'initSelect2',
    value: function initSelect2(props) {
      var options = props.options;


      this.el = (0, _jquery2.default)(_reactDom2.default.findDOMNode(this));
      // fix for updating selected value when data is changing
      if (this.forceUpdateValue) {
        this.updateSelect2Value(null);
      }
      this.el.select2(this.prepareOptions(options));
      this.attachEventHandlers(props);
    }
  }, {
    key: 'updSelect2',
    value: function updSelect2(props) {
      var prevProps = this.props;

      if (!(0, _shallowEqualFuzzy2.default)(prevProps.data, props.data)) {
        this.forceUpdateValue = true;
        this.destroySelect2(false);
        this.initSelect2(props);
        return;
      }

      var options = props.options;

      if (!(0, _shallowEqualFuzzy2.default)(prevProps.options, options)) {
        this.el.select2(this.prepareOptions(options));
      }

      var handlerChanged = function handlerChanged(e) {
        return prevProps[e[1]] !== props[e[1]];
      };
      if (props.events.some(handlerChanged)) {
        this.detachEventHandlers();
        this.attachEventHandlers(props);
      }
    }
  }, {
    key: 'updateSelect2Value',
    value: function updateSelect2Value(value) {
      this.el.off('change.' + namespace).val(value).trigger('change');

      var onChange = this.props.onChange;
      if (onChange) {
        this.el.on('change.' + namespace, onChange);
      }
    }
  }, {
    key: 'updateValue',
    value: function updateValue() {
      var _props = this.props,
          value = _props.value,
          defaultValue = _props.defaultValue,
          multiple = _props.multiple;

      var newValue = this.prepareValue(value, defaultValue);
      var currentValue = multiple ? this.el.val() || [] : this.el.val();

      if (!this.fuzzyValuesEqual(currentValue, newValue) || this.forceUpdateValue) {
        this.updateSelect2Value(newValue);
        if (!this.initialRender) {
          this.el.trigger('change');
        }
        this.forceUpdateValue = false;
      }
    }
  }, {
    key: 'fuzzyValuesEqual',
    value: function fuzzyValuesEqual(currentValue, newValue) {
      return currentValue === null && newValue === '' || (0, _shallowEqualFuzzy2.default)(currentValue, newValue);
    }
  }, {
    key: 'destroySelect2',
    value: function destroySelect2() {
      var withCallbacks = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : true;

      if (withCallbacks) {
        this.detachEventHandlers();
      }

      this.el.select2('destroy');
      this.el = null;
    }
  }, {
    key: 'attachEventHandlers',
    value: function attachEventHandlers(props) {
      var _this2 = this;

      props.events.forEach(function (event) {
        if (typeof props[event[1]] !== 'undefined') {
          _this2.el.on(event[0], props[event[1]]);
        }
      });
    }
  }, {
    key: 'detachEventHandlers',
    value: function detachEventHandlers() {
      var _this3 = this;

      this.props.events.forEach(function (event) {
        if (typeof _this3.props[event[1]] !== 'undefined') {
          _this3.el.off(event[0]);
        }
      });
    }
  }, {
    key: 'prepareValue',
    value: function prepareValue(value, defaultValue) {
      var issetValue = typeof value !== 'undefined' && value !== null;
      var issetDefaultValue = typeof defaultValue !== 'undefined';

      if (!issetValue && issetDefaultValue) {
        return defaultValue;
      }
      return value;
    }
  }, {
    key: 'prepareOptions',
    value: function prepareOptions(options) {
      var opt = options;
      if (typeof opt.dropdownParent === 'string') {
        opt.dropdownParent = (0, _jquery2.default)(opt.dropdownParent);
      }
      return opt;
    }
  }, {
    key: 'isObject',
    value: function isObject(value) {
      var type = typeof value === 'undefined' ? 'undefined' : _typeof(value);
      return type === 'function' || value && type === 'object' || false;
    }
  }, {
    key: 'makeOption',
    value: function makeOption(item) {
      if (this.isObject(item)) {
        var id = item.id,
            text = item.text,
            itemParams = _objectWithoutProperties(item, ['id', 'text']);

        return _react2.default.createElement(
          'option',
          _extends({ key: 'option-' + id, value: id }, itemParams),
          text
        );
      }

      return _react2.default.createElement(
        'option',
        { key: 'option-' + item, value: item },
        item
      );
    }
  }, {
    key: 'render',
    value: function render() {
      var _this4 = this;

      var _props2 = this.props,
          data = _props2.data,
          value = _props2.value,
          props = _objectWithoutProperties(_props2, ['data', 'value']);

      delete props.options;
      delete props.events;
      delete props.onOpen;
      delete props.onClose;
      delete props.onSelect;
      delete props.onChange;
      delete props.onUnselect;

      return _react2.default.createElement(
        'select',
        props,
        data.map(function (item, k) {
          if (_this4.isObject(item) && _this4.isObject(item.children)) {
            var children = item.children,
                text = item.text,
                itemParams = _objectWithoutProperties(item, ['children', 'text']);

            return _react2.default.createElement(
              'optgroup',
              _extends({ key: 'optgroup-' + k, label: text }, itemParams),
              children.map(function (child) {
                return _this4.makeOption(child);
              })
            );
          }
          return _this4.makeOption(item);
        })
      );
    }
  }]);

  return Select2;
}(_react.Component);

Select2.propTypes = {
  defaultValue: _propTypes2.default.oneOfType([_propTypes2.default.number, _propTypes2.default.array, _propTypes2.default.string]),
  value: _propTypes2.default.oneOfType([_propTypes2.default.number, _propTypes2.default.array, _propTypes2.default.string]),
  data: _propTypes2.default.array,
  events: _propTypes2.default.array,
  options: _propTypes2.default.object,
  multiple: _propTypes2.default.bool,
  onOpen: _propTypes2.default.func,
  onClose: _propTypes2.default.func,
  onSelect: _propTypes2.default.func,
  onChange: _propTypes2.default.func,
  onUnselect: _propTypes2.default.func
};
Select2.defaultProps = {
  data: [],
  events: [['change.' + namespace, 'onChange'], ['select2:open.' + namespace, 'onOpen'], ['select2:close.' + namespace, 'onClose'], ['select2:select.' + namespace, 'onSelect'], ['select2:unselect.' + namespace, 'onUnselect']],
  options: {},
  multiple: false
};
exports.default = Select2;
module.exports = exports['default'];