react-native/Libraries/Settings/Settings.ios.js
Rubén Norte d5e9e55fa3 Remove @providesModule from all modules
Summary:
This PR removes the need for having the `providesModule` tags in all the modules in the repository.

It configures Flow, Jest and Metro to get the module names from the filenames (`Libraries/Animated/src/nodes/AnimatedInterpolation.js` => `AnimatedInterpolation`)

* Checked the Flow configuration by running flow on the project root (no errors):

```
yarn flow
```

* Checked the Jest configuration by running the tests with a clean cache:

```
yarn jest --clearCache && yarn test
```

* Checked the Metro configuration by starting the server with a clean cache and requesting some bundles:

```
yarn run start --reset-cache
curl 'localhost:8081/IntegrationTests/AccessibilityManagerTest.bundle?platform=android'
curl 'localhost:8081/Libraries/Alert/Alert.bundle?platform=ios'
```

[INTERNAL] [FEATURE] [All] - Removed providesModule from all modules and configured tools.
Closes https://github.com/facebook/react-native/pull/18995

Reviewed By: mjesun

Differential Revision: D7729509

Pulled By: rubennorte

fbshipit-source-id: 892f760a05ce1fddb088ff0cd2e97e521fb8e825
2018-04-25 07:37:10 -07:00

74 lines
1.7 KiB
JavaScript

/**
* Copyright (c) 2015-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @flow
*/
'use strict';
var RCTDeviceEventEmitter = require('RCTDeviceEventEmitter');
var RCTSettingsManager = require('NativeModules').SettingsManager;
var invariant = require('fbjs/lib/invariant');
var subscriptions: Array<{keys: Array<string>, callback: ?Function}> = [];
var Settings = {
_settings: RCTSettingsManager && RCTSettingsManager.settings,
get(key: string): mixed {
return this._settings[key];
},
set(settings: Object) {
this._settings = Object.assign(this._settings, settings);
RCTSettingsManager.setValues(settings);
},
watchKeys(keys: string | Array<string>, callback: Function): number {
if (typeof keys === 'string') {
keys = [keys];
}
invariant(
Array.isArray(keys),
'keys should be a string or array of strings'
);
var sid = subscriptions.length;
subscriptions.push({keys: keys, callback: callback});
return sid;
},
clearWatch(watchId: number) {
if (watchId < subscriptions.length) {
subscriptions[watchId] = {keys: [], callback: null};
}
},
_sendObservations(body: Object) {
Object.keys(body).forEach((key) => {
var newValue = body[key];
var didChange = this._settings[key] !== newValue;
this._settings[key] = newValue;
if (didChange) {
subscriptions.forEach((sub) => {
if (sub.keys.indexOf(key) !== -1 && sub.callback) {
sub.callback();
}
});
}
});
},
};
RCTDeviceEventEmitter.addListener(
'settingsUpdated',
Settings._sendObservations.bind(Settings)
);
module.exports = Settings;