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7.0 KiB
JSON
1 line
7.0 KiB
JSON
{"ast":null,"code":"'use strict';\n\nexports.__esModule = true;\n\nvar _react = require('react');\n\nvar _react2 = _interopRequireDefault(_react);\n\nvar _propTypes = require('prop-types');\n\nvar _propTypes2 = _interopRequireDefault(_propTypes);\n\nvar _gud = require('gud');\n\nvar _gud2 = _interopRequireDefault(_gud);\n\nvar _warning = require('warning');\n\nvar _warning2 = _interopRequireDefault(_warning);\n\nfunction _interopRequireDefault(obj) {\n return obj && obj.__esModule ? obj : {\n default: obj\n };\n}\n\nfunction _classCallCheck(instance, Constructor) {\n if (!(instance instanceof Constructor)) {\n throw new TypeError(\"Cannot call a class as a function\");\n }\n}\n\nfunction _possibleConstructorReturn(self, call) {\n if (!self) {\n throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");\n }\n\n return call && (typeof call === \"object\" || typeof call === \"function\") ? call : self;\n}\n\nfunction _inherits(subClass, superClass) {\n if (typeof superClass !== \"function\" && superClass !== null) {\n throw new TypeError(\"Super expression must either be null or a function, not \" + typeof superClass);\n }\n\n subClass.prototype = Object.create(superClass && superClass.prototype, {\n constructor: {\n value: subClass,\n enumerable: false,\n writable: true,\n configurable: true\n }\n });\n if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;\n}\n\nvar MAX_SIGNED_31_BIT_INT = 1073741823; // Inlined Object.is polyfill.\n// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is\n\nfunction objectIs(x, y) {\n if (x === y) {\n return x !== 0 || 1 / x === 1 / y;\n } else {\n return x !== x && y !== y;\n }\n}\n\nfunction createEventEmitter(value) {\n var handlers = [];\n return {\n on: function on(handler) {\n handlers.push(handler);\n },\n off: function off(handler) {\n handlers = handlers.filter(function (h) {\n return h !== handler;\n });\n },\n get: function get() {\n return value;\n },\n set: function set(newValue, changedBits) {\n value = newValue;\n handlers.forEach(function (handler) {\n return handler(value, changedBits);\n });\n }\n };\n}\n\nfunction onlyChild(children) {\n return Array.isArray(children) ? children[0] : children;\n}\n\nfunction createReactContext(defaultValue, calculateChangedBits) {\n var _Provider$childContex, _Consumer$contextType;\n\n var contextProp = '__create-react-context-' + (0, _gud2.default)() + '__';\n\n var Provider = function (_Component) {\n _inherits(Provider, _Component);\n\n function Provider() {\n var _temp, _this, _ret;\n\n _classCallCheck(this, Provider);\n\n for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {\n args[_key] = arguments[_key];\n }\n\n return _ret = (_temp = (_this = _possibleConstructorReturn(this, _Component.call.apply(_Component, [this].concat(args))), _this), _this.emitter = createEventEmitter(_this.props.value), _temp), _possibleConstructorReturn(_this, _ret);\n }\n\n Provider.prototype.getChildContext = function getChildContext() {\n var _ref;\n\n return _ref = {}, _ref[contextProp] = this.emitter, _ref;\n };\n\n Provider.prototype.componentWillReceiveProps = function componentWillReceiveProps(nextProps) {\n if (this.props.value !== nextProps.value) {\n var oldValue = this.props.value;\n var newValue = nextProps.value;\n var changedBits = void 0;\n\n if (objectIs(oldValue, newValue)) {\n changedBits = 0; // No change\n } else {\n changedBits = typeof calculateChangedBits === 'function' ? calculateChangedBits(oldValue, newValue) : MAX_SIGNED_31_BIT_INT;\n\n if (process.env.NODE_ENV !== 'production') {\n (0, _warning2.default)((changedBits & MAX_SIGNED_31_BIT_INT) === changedBits, 'calculateChangedBits: Expected the return value to be a ' + '31-bit integer. Instead received: %s', changedBits);\n }\n\n changedBits |= 0;\n\n if (changedBits !== 0) {\n this.emitter.set(nextProps.value, changedBits);\n }\n }\n }\n };\n\n Provider.prototype.render = function render() {\n return this.props.children;\n };\n\n return Provider;\n }(_react.Component);\n\n Provider.childContextTypes = (_Provider$childContex = {}, _Provider$childContex[contextProp] = _propTypes2.default.object.isRequired, _Provider$childContex);\n\n var Consumer = function (_Component2) {\n _inherits(Consumer, _Component2);\n\n function Consumer() {\n var _temp2, _this2, _ret2;\n\n _classCallCheck(this, Consumer);\n\n for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {\n args[_key2] = arguments[_key2];\n }\n\n return _ret2 = (_temp2 = (_this2 = _possibleConstructorReturn(this, _Component2.call.apply(_Component2, [this].concat(args))), _this2), _this2.state = {\n value: _this2.getValue()\n }, _this2.onUpdate = function (newValue, changedBits) {\n var observedBits = _this2.observedBits | 0;\n\n if ((observedBits & changedBits) !== 0) {\n _this2.setState({\n value: _this2.getValue()\n });\n }\n }, _temp2), _possibleConstructorReturn(_this2, _ret2);\n }\n\n Consumer.prototype.componentWillReceiveProps = function componentWillReceiveProps(nextProps) {\n var observedBits = nextProps.observedBits;\n this.observedBits = observedBits === undefined || observedBits === null ? MAX_SIGNED_31_BIT_INT // Subscribe to all changes by default\n : observedBits;\n };\n\n Consumer.prototype.componentDidMount = function componentDidMount() {\n if (this.context[contextProp]) {\n this.context[contextProp].on(this.onUpdate);\n }\n\n var observedBits = this.props.observedBits;\n this.observedBits = observedBits === undefined || observedBits === null ? MAX_SIGNED_31_BIT_INT // Subscribe to all changes by default\n : observedBits;\n };\n\n Consumer.prototype.componentWillUnmount = function componentWillUnmount() {\n if (this.context[contextProp]) {\n this.context[contextProp].off(this.onUpdate);\n }\n };\n\n Consumer.prototype.getValue = function getValue() {\n if (this.context[contextProp]) {\n return this.context[contextProp].get();\n } else {\n return defaultValue;\n }\n };\n\n Consumer.prototype.render = function render() {\n return onlyChild(this.props.children)(this.state.value);\n };\n\n return Consumer;\n }(_react.Component);\n\n Consumer.contextTypes = (_Consumer$contextType = {}, _Consumer$contextType[contextProp] = _propTypes2.default.object, _Consumer$contextType);\n return {\n Provider: Provider,\n Consumer: Consumer\n };\n}\n\nexports.default = createReactContext;\nmodule.exports = exports['default'];","map":null,"metadata":{},"sourceType":"script"} |