scratch-www/static/js/lib/redux.js
2016-03-18 11:51:22 -04:00

775 lines
No EOL
26 KiB
JavaScript

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/* 0 */
/***/ function(module, exports, __webpack_require__) {
'use strict';
exports.__esModule = true;
exports.compose = exports.applyMiddleware = exports.bindActionCreators = exports.combineReducers = exports.createStore = undefined;
var _createStore = __webpack_require__(2);
var _createStore2 = _interopRequireDefault(_createStore);
var _combineReducers = __webpack_require__(7);
var _combineReducers2 = _interopRequireDefault(_combineReducers);
var _bindActionCreators = __webpack_require__(6);
var _bindActionCreators2 = _interopRequireDefault(_bindActionCreators);
var _applyMiddleware = __webpack_require__(5);
var _applyMiddleware2 = _interopRequireDefault(_applyMiddleware);
var _compose = __webpack_require__(1);
var _compose2 = _interopRequireDefault(_compose);
var _warning = __webpack_require__(3);
var _warning2 = _interopRequireDefault(_warning);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
/*
* This is a dummy function to check if the function name has been altered by minification.
* If the function has been minified and NODE_ENV !== 'production', warn the user.
*/
function isCrushed() {}
if (("development") !== 'production' && typeof isCrushed.name === 'string' && isCrushed.name !== 'isCrushed') {
(0, _warning2["default"])('You are currently using minified code outside of NODE_ENV === \'production\'. ' + 'This means that you are running a slower development build of Redux. ' + 'You can use loose-envify (https://github.com/zertosh/loose-envify) for browserify ' + 'or DefinePlugin for webpack (http://stackoverflow.com/questions/30030031) ' + 'to ensure you have the correct code for your production build.');
}
exports.createStore = _createStore2["default"];
exports.combineReducers = _combineReducers2["default"];
exports.bindActionCreators = _bindActionCreators2["default"];
exports.applyMiddleware = _applyMiddleware2["default"];
exports.compose = _compose2["default"];
/***/ },
/* 1 */
/***/ function(module, exports) {
"use strict";
exports.__esModule = true;
exports["default"] = compose;
/**
* Composes single-argument functions from right to left.
*
* @param {...Function} funcs The functions to compose.
* @returns {Function} A function obtained by composing functions from right to
* left. For example, compose(f, g, h) is identical to arg => f(g(h(arg))).
*/
function compose() {
for (var _len = arguments.length, funcs = Array(_len), _key = 0; _key < _len; _key++) {
funcs[_key] = arguments[_key];
}
return function () {
if (funcs.length === 0) {
return arguments.length <= 0 ? undefined : arguments[0];
}
var last = funcs[funcs.length - 1];
var rest = funcs.slice(0, -1);
return rest.reduceRight(function (composed, f) {
return f(composed);
}, last.apply(undefined, arguments));
};
}
/***/ },
/* 2 */
/***/ function(module, exports, __webpack_require__) {
'use strict';
exports.__esModule = true;
exports.ActionTypes = undefined;
exports["default"] = createStore;
var _isPlainObject = __webpack_require__(4);
var _isPlainObject2 = _interopRequireDefault(_isPlainObject);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
/**
* These are private action types reserved by Redux.
* For any unknown actions, you must return the current state.
* If the current state is undefined, you must return the initial state.
* Do not reference these action types directly in your code.
*/
var ActionTypes = exports.ActionTypes = {
INIT: '@@redux/INIT'
};
/**
* Creates a Redux store that holds the state tree.
* The only way to change the data in the store is to call `dispatch()` on it.
*
* There should only be a single store in your app. To specify how different
* parts of the state tree respond to actions, you may combine several reducers
* into a single reducer function by using `combineReducers`.
*
* @param {Function} reducer A function that returns the next state tree, given
* the current state tree and the action to handle.
*
* @param {any} [initialState] The initial state. You may optionally specify it
* to hydrate the state from the server in universal apps, or to restore a
* previously serialized user session.
* If you use `combineReducers` to produce the root reducer function, this must be
* an object with the same shape as `combineReducers` keys.
*
* @param {Function} enhancer The store enhancer. You may optionally specify it
* to enhance the store with third-party capabilities such as middleware,
* time travel, persistence, etc. The only store enhancer that ships with Redux
* is `applyMiddleware()`.
*
* @returns {Store} A Redux store that lets you read the state, dispatch actions
* and subscribe to changes.
*/
function createStore(reducer, initialState, enhancer) {
if (typeof initialState === 'function' && typeof enhancer === 'undefined') {
enhancer = initialState;
initialState = undefined;
}
if (typeof enhancer !== 'undefined') {
if (typeof enhancer !== 'function') {
throw new Error('Expected the enhancer to be a function.');
}
return enhancer(createStore)(reducer, initialState);
}
if (typeof reducer !== 'function') {
throw new Error('Expected the reducer to be a function.');
}
var currentReducer = reducer;
var currentState = initialState;
var currentListeners = [];
var nextListeners = currentListeners;
var isDispatching = false;
function ensureCanMutateNextListeners() {
if (nextListeners === currentListeners) {
nextListeners = currentListeners.slice();
}
}
/**
* Reads the state tree managed by the store.
*
* @returns {any} The current state tree of your application.
*/
function getState() {
return currentState;
}
/**
* Adds a change listener. It will be called any time an action is dispatched,
* and some part of the state tree may potentially have changed. You may then
* call `getState()` to read the current state tree inside the callback.
*
* You may call `dispatch()` from a change listener, with the following
* caveats:
*
* 1. The subscriptions are snapshotted just before every `dispatch()` call.
* If you subscribe or unsubscribe while the listeners are being invoked, this
* will not have any effect on the `dispatch()` that is currently in progress.
* However, the next `dispatch()` call, whether nested or not, will use a more
* recent snapshot of the subscription list.
*
* 2. The listener should not expect to see all states changes, as the state
* might have been updated multiple times during a nested `dispatch()` before
* the listener is called. It is, however, guaranteed that all subscribers
* registered before the `dispatch()` started will be called with the latest
* state by the time it exits.
*
* @param {Function} listener A callback to be invoked on every dispatch.
* @returns {Function} A function to remove this change listener.
*/
function subscribe(listener) {
if (typeof listener !== 'function') {
throw new Error('Expected listener to be a function.');
}
var isSubscribed = true;
ensureCanMutateNextListeners();
nextListeners.push(listener);
return function unsubscribe() {
if (!isSubscribed) {
return;
}
isSubscribed = false;
ensureCanMutateNextListeners();
var index = nextListeners.indexOf(listener);
nextListeners.splice(index, 1);
};
}
/**
* Dispatches an action. It is the only way to trigger a state change.
*
* The `reducer` function, used to create the store, will be called with the
* current state tree and the given `action`. Its return value will
* be considered the **next** state of the tree, and the change listeners
* will be notified.
*
* The base implementation only supports plain object actions. If you want to
* dispatch a Promise, an Observable, a thunk, or something else, you need to
* wrap your store creating function into the corresponding middleware. For
* example, see the documentation for the `redux-thunk` package. Even the
* middleware will eventually dispatch plain object actions using this method.
*
* @param {Object} action A plain object representing “what changed”. It is
* a good idea to keep actions serializable so you can record and replay user
* sessions, or use the time travelling `redux-devtools`. An action must have
* a `type` property which may not be `undefined`. It is a good idea to use
* string constants for action types.
*
* @returns {Object} For convenience, the same action object you dispatched.
*
* Note that, if you use a custom middleware, it may wrap `dispatch()` to
* return something else (for example, a Promise you can await).
*/
function dispatch(action) {
if (!(0, _isPlainObject2["default"])(action)) {
throw new Error('Actions must be plain objects. ' + 'Use custom middleware for async actions.');
}
if (typeof action.type === 'undefined') {
throw new Error('Actions may not have an undefined "type" property. ' + 'Have you misspelled a constant?');
}
if (isDispatching) {
throw new Error('Reducers may not dispatch actions.');
}
try {
isDispatching = true;
currentState = currentReducer(currentState, action);
} finally {
isDispatching = false;
}
var listeners = currentListeners = nextListeners;
for (var i = 0; i < listeners.length; i++) {
listeners[i]();
}
return action;
}
/**
* Replaces the reducer currently used by the store to calculate the state.
*
* You might need this if your app implements code splitting and you want to
* load some of the reducers dynamically. You might also need this if you
* implement a hot reloading mechanism for Redux.
*
* @param {Function} nextReducer The reducer for the store to use instead.
* @returns {void}
*/
function replaceReducer(nextReducer) {
if (typeof nextReducer !== 'function') {
throw new Error('Expected the nextReducer to be a function.');
}
currentReducer = nextReducer;
dispatch({ type: ActionTypes.INIT });
}
// When a store is created, an "INIT" action is dispatched so that every
// reducer returns their initial state. This effectively populates
// the initial state tree.
dispatch({ type: ActionTypes.INIT });
return {
dispatch: dispatch,
subscribe: subscribe,
getState: getState,
replaceReducer: replaceReducer
};
}
/***/ },
/* 3 */
/***/ function(module, exports) {
'use strict';
exports.__esModule = true;
exports["default"] = warning;
/**
* Prints a warning in the console if it exists.
*
* @param {String} message The warning message.
* @returns {void}
*/
function warning(message) {
/* eslint-disable no-console */
if (typeof console !== 'undefined' && typeof console.error === 'function') {
console.error(message);
}
/* eslint-enable no-console */
try {
// This error was thrown as a convenience so that you can use this stack
// to find the callsite that caused this warning to fire.
throw new Error(message);
/* eslint-disable no-empty */
} catch (e) {}
/* eslint-enable no-empty */
}
/***/ },
/* 4 */
/***/ function(module, exports, __webpack_require__) {
var isHostObject = __webpack_require__(8),
isObjectLike = __webpack_require__(9);
/** `Object#toString` result references. */
var objectTag = '[object Object]';
/** Used for built-in method references. */
var objectProto = Object.prototype;
/** Used to resolve the decompiled source of functions. */
var funcToString = Function.prototype.toString;
/** Used to infer the `Object` constructor. */
var objectCtorString = funcToString.call(Object);
/**
* Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
* of values.
*/
var objectToString = objectProto.toString;
/** Built-in value references. */
var getPrototypeOf = Object.getPrototypeOf;
/**
* Checks if `value` is a plain object, that is, an object created by the
* `Object` constructor or one with a `[[Prototype]]` of `null`.
*
* @static
* @memberOf _
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
* @example
*
* function Foo() {
* this.a = 1;
* }
*
* _.isPlainObject(new Foo);
* // => false
*
* _.isPlainObject([1, 2, 3]);
* // => false
*
* _.isPlainObject({ 'x': 0, 'y': 0 });
* // => true
*
* _.isPlainObject(Object.create(null));
* // => true
*/
function isPlainObject(value) {
if (!isObjectLike(value) || objectToString.call(value) != objectTag || isHostObject(value)) {
return false;
}
var proto = objectProto;
if (typeof value.constructor == 'function') {
proto = getPrototypeOf(value);
}
if (proto === null) {
return true;
}
var Ctor = proto.constructor;
return (typeof Ctor == 'function' &&
Ctor instanceof Ctor && funcToString.call(Ctor) == objectCtorString);
}
module.exports = isPlainObject;
/***/ },
/* 5 */
/***/ function(module, exports, __webpack_require__) {
'use strict';
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; };
exports.__esModule = true;
exports["default"] = applyMiddleware;
var _compose = __webpack_require__(1);
var _compose2 = _interopRequireDefault(_compose);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
/**
* Creates a store enhancer that applies middleware to the dispatch method
* of the Redux store. This is handy for a variety of tasks, such as expressing
* asynchronous actions in a concise manner, or logging every action payload.
*
* See `redux-thunk` package as an example of the Redux middleware.
*
* Because middleware is potentially asynchronous, this should be the first
* store enhancer in the composition chain.
*
* Note that each middleware will be given the `dispatch` and `getState` functions
* as named arguments.
*
* @param {...Function} middlewares The middleware chain to be applied.
* @returns {Function} A store enhancer applying the middleware.
*/
function applyMiddleware() {
for (var _len = arguments.length, middlewares = Array(_len), _key = 0; _key < _len; _key++) {
middlewares[_key] = arguments[_key];
}
return function (createStore) {
return function (reducer, initialState, enhancer) {
var store = createStore(reducer, initialState, enhancer);
var _dispatch = store.dispatch;
var chain = [];
var middlewareAPI = {
getState: store.getState,
dispatch: function dispatch(action) {
return _dispatch(action);
}
};
chain = middlewares.map(function (middleware) {
return middleware(middlewareAPI);
});
_dispatch = _compose2["default"].apply(undefined, chain)(store.dispatch);
return _extends({}, store, {
dispatch: _dispatch
});
};
};
}
/***/ },
/* 6 */
/***/ function(module, exports) {
'use strict';
exports.__esModule = true;
exports["default"] = bindActionCreators;
function bindActionCreator(actionCreator, dispatch) {
return function () {
return dispatch(actionCreator.apply(undefined, arguments));
};
}
/**
* Turns an object whose values are action creators, into an object with the
* same keys, but with every function wrapped into a `dispatch` call so they
* may be invoked directly. This is just a convenience method, as you can call
* `store.dispatch(MyActionCreators.doSomething())` yourself just fine.
*
* For convenience, you can also pass a single function as the first argument,
* and get a function in return.
*
* @param {Function|Object} actionCreators An object whose values are action
* creator functions. One handy way to obtain it is to use ES6 `import * as`
* syntax. You may also pass a single function.
*
* @param {Function} dispatch The `dispatch` function available on your Redux
* store.
*
* @returns {Function|Object} The object mimicking the original object, but with
* every action creator wrapped into the `dispatch` call. If you passed a
* function as `actionCreators`, the return value will also be a single
* function.
*/
function bindActionCreators(actionCreators, dispatch) {
if (typeof actionCreators === 'function') {
return bindActionCreator(actionCreators, dispatch);
}
if (typeof actionCreators !== 'object' || actionCreators === null) {
throw new Error('bindActionCreators expected an object or a function, instead received ' + (actionCreators === null ? 'null' : typeof actionCreators) + '. ' + 'Did you write "import ActionCreators from" instead of "import * as ActionCreators from"?');
}
var keys = Object.keys(actionCreators);
var boundActionCreators = {};
for (var i = 0; i < keys.length; i++) {
var key = keys[i];
var actionCreator = actionCreators[key];
if (typeof actionCreator === 'function') {
boundActionCreators[key] = bindActionCreator(actionCreator, dispatch);
}
}
return boundActionCreators;
}
/***/ },
/* 7 */
/***/ function(module, exports, __webpack_require__) {
'use strict';
exports.__esModule = true;
exports["default"] = combineReducers;
var _createStore = __webpack_require__(2);
var _isPlainObject = __webpack_require__(4);
var _isPlainObject2 = _interopRequireDefault(_isPlainObject);
var _warning = __webpack_require__(3);
var _warning2 = _interopRequireDefault(_warning);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
function getUndefinedStateErrorMessage(key, action) {
var actionType = action && action.type;
var actionName = actionType && '"' + actionType.toString() + '"' || 'an action';
return 'Reducer "' + key + '" returned undefined handling ' + actionName + '. ' + 'To ignore an action, you must explicitly return the previous state.';
}
function getUnexpectedStateShapeWarningMessage(inputState, reducers, action) {
var reducerKeys = Object.keys(reducers);
var argumentName = action && action.type === _createStore.ActionTypes.INIT ? 'initialState argument passed to createStore' : 'previous state received by the reducer';
if (reducerKeys.length === 0) {
return 'Store does not have a valid reducer. Make sure the argument passed ' + 'to combineReducers is an object whose values are reducers.';
}
if (!(0, _isPlainObject2["default"])(inputState)) {
return 'The ' + argumentName + ' has unexpected type of "' + {}.toString.call(inputState).match(/\s([a-z|A-Z]+)/)[1] + '". Expected argument to be an object with the following ' + ('keys: "' + reducerKeys.join('", "') + '"');
}
var unexpectedKeys = Object.keys(inputState).filter(function (key) {
return !reducers.hasOwnProperty(key);
});
if (unexpectedKeys.length > 0) {
return 'Unexpected ' + (unexpectedKeys.length > 1 ? 'keys' : 'key') + ' ' + ('"' + unexpectedKeys.join('", "') + '" found in ' + argumentName + '. ') + 'Expected to find one of the known reducer keys instead: ' + ('"' + reducerKeys.join('", "') + '". Unexpected keys will be ignored.');
}
}
function assertReducerSanity(reducers) {
Object.keys(reducers).forEach(function (key) {
var reducer = reducers[key];
var initialState = reducer(undefined, { type: _createStore.ActionTypes.INIT });
if (typeof initialState === 'undefined') {
throw new Error('Reducer "' + key + '" returned undefined during initialization. ' + 'If the state passed to the reducer is undefined, you must ' + 'explicitly return the initial state. The initial state may ' + 'not be undefined.');
}
var type = '@@redux/PROBE_UNKNOWN_ACTION_' + Math.random().toString(36).substring(7).split('').join('.');
if (typeof reducer(undefined, { type: type }) === 'undefined') {
throw new Error('Reducer "' + key + '" returned undefined when probed with a random type. ' + ('Don\'t try to handle ' + _createStore.ActionTypes.INIT + ' or other actions in "redux/*" ') + 'namespace. They are considered private. Instead, you must return the ' + 'current state for any unknown actions, unless it is undefined, ' + 'in which case you must return the initial state, regardless of the ' + 'action type. The initial state may not be undefined.');
}
});
}
/**
* Turns an object whose values are different reducer functions, into a single
* reducer function. It will call every child reducer, and gather their results
* into a single state object, whose keys correspond to the keys of the passed
* reducer functions.
*
* @param {Object} reducers An object whose values correspond to different
* reducer functions that need to be combined into one. One handy way to obtain
* it is to use ES6 `import * as reducers` syntax. The reducers may never return
* undefined for any action. Instead, they should return their initial state
* if the state passed to them was undefined, and the current state for any
* unrecognized action.
*
* @returns {Function} A reducer function that invokes every reducer inside the
* passed object, and builds a state object with the same shape.
*/
function combineReducers(reducers) {
var reducerKeys = Object.keys(reducers);
var finalReducers = {};
for (var i = 0; i < reducerKeys.length; i++) {
var key = reducerKeys[i];
if (typeof reducers[key] === 'function') {
finalReducers[key] = reducers[key];
}
}
var finalReducerKeys = Object.keys(finalReducers);
var sanityError;
try {
assertReducerSanity(finalReducers);
} catch (e) {
sanityError = e;
}
return function combination() {
var state = arguments.length <= 0 || arguments[0] === undefined ? {} : arguments[0];
var action = arguments[1];
if (sanityError) {
throw sanityError;
}
if (true) {
var warningMessage = getUnexpectedStateShapeWarningMessage(state, finalReducers, action);
if (warningMessage) {
(0, _warning2["default"])(warningMessage);
}
}
var hasChanged = false;
var nextState = {};
for (var i = 0; i < finalReducerKeys.length; i++) {
var key = finalReducerKeys[i];
var reducer = finalReducers[key];
var previousStateForKey = state[key];
var nextStateForKey = reducer(previousStateForKey, action);
if (typeof nextStateForKey === 'undefined') {
var errorMessage = getUndefinedStateErrorMessage(key, action);
throw new Error(errorMessage);
}
nextState[key] = nextStateForKey;
hasChanged = hasChanged || nextStateForKey !== previousStateForKey;
}
return hasChanged ? nextState : state;
};
}
/***/ },
/* 8 */
/***/ function(module, exports) {
/**
* Checks if `value` is a host object in IE < 9.
*
* @private
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is a host object, else `false`.
*/
function isHostObject(value) {
// Many host objects are `Object` objects that can coerce to strings
// despite having improperly defined `toString` methods.
var result = false;
if (value != null && typeof value.toString != 'function') {
try {
result = !!(value + '');
} catch (e) {}
}
return result;
}
module.exports = isHostObject;
/***/ },
/* 9 */
/***/ function(module, exports) {
/**
* Checks if `value` is object-like. A value is object-like if it's not `null`
* and has a `typeof` result of "object".
*
* @static
* @memberOf _
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is object-like, else `false`.
* @example
*
* _.isObjectLike({});
* // => true
*
* _.isObjectLike([1, 2, 3]);
* // => true
*
* _.isObjectLike(_.noop);
* // => false
*
* _.isObjectLike(null);
* // => false
*/
function isObjectLike(value) {
return !!value && typeof value == 'object';
}
module.exports = isObjectLike;
/***/ }
/******/ ])
});
;