import defined from "./defined.js";
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var implementation;
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if (typeof cancelAnimationFrame !== "undefined") {
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implementation = cancelAnimationFrame;
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}
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(function () {
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// look for vendor prefixed function
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if (!defined(implementation) && typeof window !== "undefined") {
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var vendors = ["webkit", "moz", "ms", "o"];
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var i = 0;
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var len = vendors.length;
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while (i < len && !defined(implementation)) {
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implementation = window[vendors[i] + "CancelAnimationFrame"];
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if (!defined(implementation)) {
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implementation = window[vendors[i] + "CancelRequestAnimationFrame"];
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}
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++i;
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}
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}
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// otherwise, assume requestAnimationFrame is based on setTimeout, so use clearTimeout
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if (!defined(implementation)) {
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implementation = clearTimeout;
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}
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})();
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/**
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* A browser-independent function to cancel an animation frame requested using {@link requestAnimationFrame}.
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*
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* @function cancelAnimationFrame
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*
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* @param {Number} requestID The value returned by {@link requestAnimationFrame}.
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*
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* @see {@link http://www.w3.org/TR/animation-timing/#the-WindowAnimationTiming-interface|The WindowAnimationTiming interface}
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*/
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function cancelAnimationFramePolyfill(requestID) {
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// we need this extra wrapper function because the native cancelAnimationFrame
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// functions must be invoked on the global scope (window), which is not the case
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// if invoked as Cesium.cancelAnimationFrame(requestID)
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implementation(requestID);
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}
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export default cancelAnimationFramePolyfill;
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