react-native/Libraries/Components/AccessibilityInfo/AccessibilityInfo.android.js
Jordan Brown b64b9dbece Replace '@flow strict(-local)' with '@flow' in .android.js files
Summary:
Flow doesn't check .android.js files yet anyway.

I'm going to be adding suppressions in a followup diff. It would be nice to not have >1k suppressions saying that we can't do certain things in `flow strict` when we don't even typecheck with regular `flow` just yet

I ran these commands to produce this diff:
`find . -name '*.android.js' -exec sed -i 's/flow strict-local/flow/g' {} +`
`find . -name '*.android.js' -exec sed -i 's/flow strict/flow/g' {} +`

Followed https://unix.stackexchange.com/questions/112023/how-can-i-replace-a-string-in-a-files to do it.

The controller you requested could not be found.

Reviewed By: TheSavior

Differential Revision: D9143783

fbshipit-source-id: e9af4fe695ebdba4db4083de1697cc248d48eb0d
2018-08-08 10:48:19 -07:00

85 lines
2.1 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.
*
* @format
* @flow
*/
'use strict';
const NativeModules = require('NativeModules');
const RCTDeviceEventEmitter = require('RCTDeviceEventEmitter');
const UIManager = require('UIManager');
const RCTAccessibilityInfo = NativeModules.AccessibilityInfo;
const TOUCH_EXPLORATION_EVENT = 'touchExplorationDidChange';
type ChangeEventName = $Enum<{
change: string,
}>;
const _subscriptions = new Map();
/**
* Sometimes it's useful to know whether or not the device has a screen reader
* that is currently active. The `AccessibilityInfo` API is designed for this
* purpose. You can use it to query the current state of the screen reader as
* well as to register to be notified when the state of the screen reader
* changes.
*
* See http://facebook.github.io/react-native/docs/accessibilityinfo.html
*/
const AccessibilityInfo = {
fetch: function(): Promise {
return new Promise((resolve, reject) => {
RCTAccessibilityInfo.isTouchExplorationEnabled(function(resp) {
resolve(resp);
});
});
},
addEventListener: function(
eventName: ChangeEventName,
handler: Function,
): void {
const listener = RCTDeviceEventEmitter.addListener(
TOUCH_EXPLORATION_EVENT,
enabled => {
handler(enabled);
},
);
_subscriptions.set(handler, listener);
},
removeEventListener: function(
eventName: ChangeEventName,
handler: Function,
): void {
const listener = _subscriptions.get(handler);
if (!listener) {
return;
}
listener.remove();
_subscriptions.delete(handler);
},
/**
* Set accessibility focus to a react component.
*
* See http://facebook.github.io/react-native/docs/accessibilityinfo.html#setaccessibilityfocus
*/
setAccessibilityFocus: function(reactTag: number): void {
UIManager.sendAccessibilityEvent(
reactTag,
UIManager.AccessibilityEventTypes.typeViewFocused,
);
},
};
module.exports = AccessibilityInfo;