70 lines
2.1 KiB
JavaScript
70 lines
2.1 KiB
JavaScript
/**
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* Copyright (c) 2013-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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* The examples provided by Facebook are for non-commercial testing and
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* evaluation purposes only.
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*
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* Facebook reserves all rights not expressly granted.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT. IN NO EVENT SHALL
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* FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* @flow
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* @providesModule UIExplorerNavigationReducer
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*/
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'use strict';
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// $FlowFixMe : This is a platform-forked component, and flow seems to only run on iOS?
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const UIExplorerList = require('./UIExplorerList');
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export type UIExplorerNavigationState = {
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openExample: ?string,
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};
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function UIExplorerNavigationReducer(
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state: ?UIExplorerNavigationState,
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action: any
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): UIExplorerNavigationState {
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if (
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// Default value is to see example list
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!state ||
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// Handle the explicit list action
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action.type === 'UIExplorerListAction' ||
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// Handle requests to go back to the list when an example is open
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(state.openExample && action.type === 'UIExplorerBackAction')
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) {
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return {
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// A null openExample will cause the views to display the UIExplorer example list
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openExample: null,
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};
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}
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if (action.type === 'UIExplorerExampleAction') {
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// Make sure we see the module before returning the new state
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const ExampleModule = UIExplorerList.Modules[action.openExample];
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if (ExampleModule) {
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return {
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openExample: action.openExample,
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};
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}
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}
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return state;
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}
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module.exports = UIExplorerNavigationReducer;
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