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https://github.com/status-im/react-native.git
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a3085464f6
Summary: A new API to unify internal navigation. Also addresses a highly-rated community 'pain': https://productpains.com/post/react-native/better-navigator-api-and-docs/ Offers the following improvements: - Redux-style navigation logic is easy to reason about - Navigation state can be easily saved and restored through refreshes - Declarative navigation views can be implemented in native or JS - Animations and gestures are isolated and now use the Animated library public Reviewed By: hedgerwang Differential Revision: D2798048 fb-gh-sync-id: 88027ef9ead8a80afa38354252bc377455cc6dbb
39 lines
1.1 KiB
JavaScript
39 lines
1.1 KiB
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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* @providesModule NavigationFindReducer
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* @flow
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*/
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'use strict';
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/*
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* NavigationFindReducer takes an array of reducers, and returns a reducer that
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* iterates through all of the reducers and the result of the first reducer
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* that modifies the input
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*/
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import type {
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NavigationState,
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NavigationReducer
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} from 'NavigationState';
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function NavigationFindReducer(reducers: Array<NavigationReducer>): ?NavigationReducer {
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return function(lastState: ?NavigationState, action: ?any): ?NavigationState {
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for (let i = 0; i < reducers.length; i++) {
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let reducer = reducers[i];
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let newState = reducer(lastState, action);
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if (newState !== lastState) {
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return newState;
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}
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}
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return lastState;
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};
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}
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module.exports = NavigationFindReducer;
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