mirror of
https://github.com/zhigang1992/react-native.git
synced 2026-04-28 20:25:33 +08:00
0ee5f68929
Summary: This is the next step in moving RN towards standard path-based requires. All the requires in `Libraries` have been rewritten to use relative requires with a few exceptions, namely, `vendor` and `Renderer/oss` since those need to be changed upstream. This commit uses relative requires instead of `react-native/...` so that if Facebook were to stop syncing out certain folders and therefore remove code from the react-native package, internal code at Facebook would not need to change. See the umbrella issue at https://github.com/facebook/react-native/issues/24316 for more detail. [General] [Changed] - Migrate "Libraries" from Haste to standard path-based requires Pull Request resolved: https://github.com/facebook/react-native/pull/24749 Differential Revision: D15258017 Pulled By: cpojer fbshipit-source-id: a1f480ea36c05c659b6f37c8f02f6f9216d5a323
77 lines
1.8 KiB
JavaScript
77 lines
1.8 KiB
JavaScript
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @format
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* @flow
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*/
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'use strict';
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const RCTDeviceEventEmitter = require('../EventEmitter/RCTDeviceEventEmitter');
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const RCTSettingsManager = require('../BatchedBridge/NativeModules')
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.SettingsManager;
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const invariant = require('invariant');
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const subscriptions: Array<{keys: Array<string>, callback: ?Function}> = [];
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const Settings = {
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_settings: RCTSettingsManager && RCTSettingsManager.settings,
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get(key: string): mixed {
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return this._settings[key];
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},
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set(settings: Object) {
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this._settings = Object.assign(this._settings, settings);
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RCTSettingsManager.setValues(settings);
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},
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watchKeys(keys: string | Array<string>, callback: Function): number {
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if (typeof keys === 'string') {
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keys = [keys];
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}
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invariant(
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Array.isArray(keys),
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'keys should be a string or array of strings',
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);
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const sid = subscriptions.length;
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subscriptions.push({keys: keys, callback: callback});
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return sid;
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},
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clearWatch(watchId: number) {
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if (watchId < subscriptions.length) {
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subscriptions[watchId] = {keys: [], callback: null};
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}
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},
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_sendObservations(body: Object) {
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Object.keys(body).forEach(key => {
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const newValue = body[key];
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const didChange = this._settings[key] !== newValue;
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this._settings[key] = newValue;
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if (didChange) {
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subscriptions.forEach(sub => {
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if (sub.keys.indexOf(key) !== -1 && sub.callback) {
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sub.callback();
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}
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});
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}
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});
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},
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};
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RCTDeviceEventEmitter.addListener(
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'settingsUpdated',
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Settings._sendObservations.bind(Settings),
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);
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module.exports = Settings;
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