Async.js

'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 _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 _get = function get(_x, _x2, _x3) { var _again = true; _function: while (_again) { var object = _x, property = _x2, receiver = _x3; _again = false; if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { _x = parent; _x2 = property; _x3 = receiver; _again = true; desc = parent = undefined; continue _function; } } else if ('value' in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } } };

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 _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 _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

var _Select = require('./Select');

var _Select2 = _interopRequireDefault(_Select);

var _utilsStripDiacritics = require('./utils/stripDiacritics');

var _utilsStripDiacritics2 = _interopRequireDefault(_utilsStripDiacritics);

var propTypes = {
	autoload: _propTypes2['default'].bool.isRequired, // automatically call the `loadOptions` prop on-mount; defaults to true
	cache: _propTypes2['default'].any, // object to use to cache results; set to null/false to disable caching
	children: _propTypes2['default'].func.isRequired, // Child function responsible for creating the inner Select component; (props: Object): PropTypes.element
	ignoreAccents: _propTypes2['default'].bool, // strip diacritics when filtering; defaults to true
	ignoreCase: _propTypes2['default'].bool, // perform case-insensitive filtering; defaults to true
	loadingPlaceholder: _propTypes2['default'].oneOfType([// replaces the placeholder while options are loading
	_propTypes2['default'].string, _propTypes2['default'].node]),
	loadOptions: _propTypes2['default'].func.isRequired, // callback to load options asynchronously; (inputValue: string, callback: Function): ?Promise
	multi: _propTypes2['default'].bool, // multi-value input
	options: _propTypes2['default'].array.isRequired, // array of options
	placeholder: _propTypes2['default'].oneOfType([// field placeholder, displayed when there's no value (shared with Select)
	_propTypes2['default'].string, _propTypes2['default'].node]),
	noResultsText: _propTypes2['default'].oneOfType([// field noResultsText, displayed when no options come back from the server
	_propTypes2['default'].string, _propTypes2['default'].node]),
	onChange: _propTypes2['default'].func, // onChange handler: function (newValue) {}
	searchPromptText: _propTypes2['default'].oneOfType([// label to prompt for search input
	_propTypes2['default'].string, _propTypes2['default'].node]),
	onInputChange: _propTypes2['default'].func, // optional for keeping track of what is being typed
	value: _propTypes2['default'].any };

// initial field value
var defaultCache = {};

var defaultProps = {
	autoload: true,
	cache: defaultCache,
	children: defaultChildren,
	ignoreAccents: true,
	ignoreCase: true,
	loadingPlaceholder: 'Loading...',
	options: [],
	searchPromptText: 'Type to search'
};

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

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

		_get(Object.getPrototypeOf(Async.prototype), 'constructor', this).call(this, props, context);

		this._cache = props.cache === defaultCache ? {} : props.cache;

		this.state = {
			isLoading: false,
			options: props.options
		};

		this._onInputChange = this._onInputChange.bind(this);
	}

	_createClass(Async, [{
		key: 'componentDidMount',
		value: function componentDidMount() {
			var autoload = this.props.autoload;

			if (autoload) {
				this.loadOptions('');
			}
		}
	}, {
		key: 'componentWillUpdate',
		value: function componentWillUpdate(nextProps, nextState) {
			var _this = this;

			var propertiesToSync = ['options'];
			propertiesToSync.forEach(function (prop) {
				if (_this.props[prop] !== nextProps[prop]) {
					_this.setState(_defineProperty({}, prop, nextProps[prop]));
				}
			});
		}
	}, {
		key: 'clearOptions',
		value: function clearOptions() {
			this.setState({ options: [] });
		}
	}, {
		key: 'loadOptions',
		value: function loadOptions(inputValue) {
			var _this2 = this;

			var loadOptions = this.props.loadOptions;

			var cache = this._cache;

			if (cache && cache.hasOwnProperty(inputValue)) {
				this.setState({
					options: cache[inputValue]
				});

				return;
			}

			var callback = function callback(error, data) {
				if (callback === _this2._callback) {
					_this2._callback = null;

					var options = data && data.options || [];

					if (cache) {
						cache[inputValue] = options;
					}

					_this2.setState({
						isLoading: false,
						options: options
					});
				}
			};

			// Ignore all but the most recent request
			this._callback = callback;

			var promise = loadOptions(inputValue, callback);
			if (promise) {
				promise.then(function (data) {
					return callback(null, data);
				}, function (error) {
					return callback(error);
				});
			}

			if (this._callback && !this.state.isLoading) {
				this.setState({
					isLoading: true
				});
			}

			return inputValue;
		}
	}, {
		key: '_onInputChange',
		value: function _onInputChange(inputValue) {
			var _props = this.props;
			var ignoreAccents = _props.ignoreAccents;
			var ignoreCase = _props.ignoreCase;
			var onInputChange = _props.onInputChange;

			if (ignoreAccents) {
				inputValue = (0, _utilsStripDiacritics2['default'])(inputValue);
			}

			if (ignoreCase) {
				inputValue = inputValue.toLowerCase();
			}

			if (onInputChange) {
				onInputChange(inputValue);
			}

			return this.loadOptions(inputValue);
		}
	}, {
		key: 'inputValue',
		value: function inputValue() {
			if (this.select) {
				return this.select.state.inputValue;
			}
			return '';
		}
	}, {
		key: 'noResultsText',
		value: function noResultsText() {
			var _props2 = this.props;
			var loadingPlaceholder = _props2.loadingPlaceholder;
			var noResultsText = _props2.noResultsText;
			var searchPromptText = _props2.searchPromptText;
			var isLoading = this.state.isLoading;

			var inputValue = this.inputValue();

			if (isLoading) {
				return loadingPlaceholder;
			}
			if (inputValue && noResultsText) {
				return noResultsText;
			}
			return searchPromptText;
		}
	}, {
		key: 'focus',
		value: function focus() {
			this.select.focus();
		}
	}, {
		key: 'render',
		value: function render() {
			var _this3 = this;

			var _props3 = this.props;
			var children = _props3.children;
			var loadingPlaceholder = _props3.loadingPlaceholder;
			var placeholder = _props3.placeholder;
			var _state = this.state;
			var isLoading = _state.isLoading;
			var options = _state.options;

			var props = {
				noResultsText: this.noResultsText(),
				placeholder: isLoading ? loadingPlaceholder : placeholder,
				options: isLoading && loadingPlaceholder ? [] : options,
				ref: function ref(_ref) {
					return _this3.select = _ref;
				},
				onChange: function onChange(newValues) {
					if (_this3.props.multi && _this3.props.value && newValues.length > _this3.props.value.length) {
						_this3.clearOptions();
					}
					_this3.props.onChange(newValues);
				}
			};

			return children(_extends({}, this.props, props, {
				isLoading: isLoading,
				onInputChange: this._onInputChange
			}));
		}
	}]);

	return Async;
})(_react.Component);

exports['default'] = Async;

Async.propTypes = propTypes;
Async.defaultProps = defaultProps;

function defaultChildren(props) {
	return _react2['default'].createElement(_Select2['default'], props);
}
module.exports = exports['default'];