Files
shaka-player/lib/polyfill/mathround.js
T
Jacob Trimble 759eef9685 Change goo.gl links to bit.ly.
https://goo.gl is being turned-down, so we can't use it for new URLS.
So we have consistent short links, this converts them to be
https://bit.ly.

Change-Id: I07a86cba807b67157664893341f648023918d0de
2018-06-22 20:20:00 +00:00

59 lines
1.6 KiB
JavaScript

/**
* @license
* Copyright 2016 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
goog.provide('shaka.polyfill.MathRound');
goog.require('shaka.log');
goog.require('shaka.polyfill.register');
/**
* @namespace shaka.polyfill.MathRound
*
* @summary A polyfill to patch math round bug on some browsers.
* @see https://stackoverflow.com/q/12830742
*/
/**
@const {number}
@private
*/
shaka.polyfill.MathRound.MAX_ACCURATE_INPUT_ = 0x10000000000000;
/**
* Install the polyfill if needed.
*/
shaka.polyfill.MathRound.install = function() {
shaka.log.debug('mathRound.install');
let testNumber = shaka.polyfill.MathRound.MAX_ACCURATE_INPUT_ + 1;
if (Math.round(testNumber) != testNumber) {
shaka.log.debug('polyfill Math.round');
let originalMathRound = Math.round;
Math.round = function(number) {
let result = number;
// Due to the precision of JavaScript numbers, the number must be integer.
if (number <= shaka.polyfill.MathRound.MAX_ACCURATE_INPUT_) {
result = originalMathRound(number);
}
return result;
};
}
};
shaka.polyfill.register(shaka.polyfill.MathRound.install);