50 lines
1.4 KiB
JavaScript
50 lines
1.4 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 TVEventHandler
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* @flow
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*/
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'use strict';
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const React = require('React');
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const TVNavigationEventEmitter = require('NativeModules').TVNavigationEventEmitter;
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const NativeEventEmitter = require('NativeEventEmitter');
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function TVEventHandler() {
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this.__nativeTVNavigationEventListener = null;
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this.__nativeTVNavigationEventEmitter = null;
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}
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TVEventHandler.prototype.enable = function(component: ?any, callback: Function) {
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if (!TVNavigationEventEmitter) {
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return;
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}
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this.__nativeTVNavigationEventEmitter = new NativeEventEmitter(TVNavigationEventEmitter);
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this.__nativeTVNavigationEventListener = this.__nativeTVNavigationEventEmitter.addListener(
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'onTVNavEvent',
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(data) => {
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if (callback) {
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callback(component, data);
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}
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}
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);
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};
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TVEventHandler.prototype.disable = function() {
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if (this.__nativeTVNavigationEventListener) {
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this.__nativeTVNavigationEventListener.remove();
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delete this.__nativeTVNavigationEventListener;
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}
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if (this.__nativeTVNavigationEventEmitter) {
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delete this.__nativeTVNavigationEventEmitter;
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}
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};
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module.exports = TVEventHandler;
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