[ReactNative] Use oss TimerMixin

Libraries/Utilities/TimerMixin.js

@@ -1,109 +0,0 @@
-/**
- * Copyright (c) 2015-present, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * LICENSE file in the root directory of this source tree. An additional grant
- * of patent rights can be found in the PATENTS file in the same directory.
- *
- * @providesModule TimerMixin
- * @flow
- */
-'use strict';
-
-var setImmediate = require('setImmediate');
-var clearImmediate = require('clearImmediate');
-
-/**
- * Using bare setTimeout, setInterval, setImmediate and
- * requestAnimationFrame calls is very dangerous because if you forget to cancel
- * the request before the component is unmounted, you risk the callback throwing
- * an exception.
- *
- * If you include TimerMixin, then you can replace your calls
- *   to `setTimeout(fn, 500)`
- * with `this.setTimeout(fn, 500)` (just prepend `this.`)
- * and everything will be properly cleaned up for you.
- *
- * Example:
- *
- *   var Component = React.createClass({
- *     mixins: [TimerMixin],
- *     componentDidMount: function() {
- *       this.setTimeout(
- *         () => { console.log('I do not leak!'); },
- *         500
- *       );
- *     }
- *   });
- */
-
- var setter = function(setter, clearer, array) {
-   return function(
-     callback: () => void,
-     delta: number
-   ): number {
-     var id = setter(() => {
-       clearer.call(this, id);
-       callback.apply(this, arguments);
-     }, delta);
-
-     if (!this[array]) {
-       this[array] = [id];
-     } else {
-       this[array].push(id);
-     }
-     return id;
-   };
- };
-
- var clearer = function(clearer, array) {
-   return function(id: number) {
-     if (this[array]) {
-       var index = this[array].indexOf(id);
-       if (index !== -1) {
-         this[array].splice(index, 1);
-       }
-     }
-     clearer(id);
-   };
- };
-
- var _timeouts = 'TimerMixin_timeouts';
- var _clearTimeout = clearer(clearTimeout, _timeouts);
- var _setTimeout = setter(setTimeout, _clearTimeout, _timeouts);
-
- var _intervals = 'TimerMixin_intervals';
- var _clearInterval = clearer(clearInterval, _intervals);
- var _setInterval = setter(setInterval, () => {/* noop */}, _intervals);
-
- var _immediates = 'TimerMixin_immediates';
- var _clearImmediate = clearer(clearImmediate, _immediates);
- var _setImmediate = setter(setImmediate, _clearImmediate, _immediates);
-
- var _rafs = 'TimerMixin_rafs';
- var _cancelAnimationFrame = clearer(window.cancelAnimationFrame, _rafs);
- var _requestAnimationFrame = setter(window.requestAnimationFrame, _cancelAnimationFrame, _rafs);
-
-var TimerMixin = {
-  componentWillUnmount: function() {
-    this[_timeouts] && this[_timeouts].forEach(this.clearTimeout);
-    this[_intervals] && this[_intervals].forEach(this.clearInterval);
-    this[_immediates] && this[_immediates].forEach(this.clearImmediate);
-    this[_rafs] && this[_rafs].forEach(this.cancelAnimationFrame);
-  },
-
-  setTimeout: _setTimeout,
-  clearTimeout: _clearTimeout,
-
-  setInterval: _setInterval,
-  clearInterval: _clearInterval,
-
-  setImmediate: _setImmediate,
-  clearImmediate: _clearImmediate,
-
-  requestAnimationFrame: _requestAnimationFrame,
-  cancelAnimationFrame: _cancelAnimationFrame,
-};
-
-module.exports = TimerMixin;