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Request animation frame polyfill

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This commit is contained in:
Josh Johnson 2016-08-03 22:00:18 +01:00
parent b98f4b05e1
commit 0834c3a7d0
2 changed files with 65 additions and 29 deletions
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4
assets/scripts/dist/choices.min.js vendored
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File diff suppressed because one or more lines are too long

40
assets/scripts/src/lib/polyfills.js
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@ -10,8 +10,12 @@ if (!Array.from) {
var toInteger = function(value) {
var number = Number(value);
if (isNaN(number)) { return 0; }
if (number === 0 || !isFinite(number)) { return number; }
if (isNaN(number)) {
return 0;
}
if (number === 0 || !isFinite(number)) {
return number;
}
return (number > 0 ? 1 : -1) * Math.floor(Math.abs(number));
};
@ -105,3 +109,35 @@ if (!Array.prototype.find) {
return undefined;
};
}
(function() {
"use strict";
var lastTime = 0,
vendors = ['ms', 'moz', 'webkit', 'o'],
x;
for (x = 0; x < vendors.length && !window.requestAnimationFrame; ++x) {
window.requestAnimationFrame = window[vendors[x] + 'RequestAnimationFrame'];
window.cancelAnimationFrame = window[vendors[x] + 'CancelAnimationFrame'] ||
window[vendors[x] + 'CancelRequestAnimationFrame'];
}
if (!window.requestAnimationFrame) {
window.requestAnimationFrame = function(callback, element) {
var currTime = new Date().getTime(),
timeToCall = Math.max(0, 16 - (currTime - lastTime)),
id = window.setTimeout(function() {
callback(currTime + timeToCall);
}, timeToCall);
lastTime = currTime + timeToCall;
return id;
};
}
if (!window.cancelAnimationFrame) {
window.cancelAnimationFrame = function(id) {
window.clearTimeout(id);
};
}
}());