Created
May 30, 2014 21:14
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Lightweight ticker based on requestAnimationFrame using Paul Irish's polyfill.
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| // http://paulirish.com/2011/requestanimationframe-for-smart-animating/ | |
| // http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating | |
| // requestAnimationFrame polyfill by Erik Möller. fixes from Paul Irish and Tino Zijdel | |
| // MIT license | |
| (function() { | |
| var lastTime = 0; | |
| var vendors = ['ms', 'moz', 'webkit', 'o']; | |
| for(var 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(); | |
| var timeToCall = Math.max(0, 16 - (currTime - lastTime)); | |
| var id = window.setTimeout(function() { callback(currTime + timeToCall); }, | |
| timeToCall); | |
| lastTime = currTime + timeToCall; | |
| return id; | |
| }; | |
| if (!window.cancelAnimationFrame) | |
| window.cancelAnimationFrame = function(id) { | |
| clearTimeout(id); | |
| }; | |
| }()); | |
| var RAFTicker = function(){ | |
| var timeElapsed, | |
| lastTickTime, | |
| shouldStop, | |
| tickHandler, | |
| interval, | |
| start = function(fps, handler){ | |
| lastTickTime = timeElapsed = 0; | |
| shouldStop = false; | |
| interval = 1000 / fps; | |
| tickHandler = handler | |
| tick(0); | |
| }, | |
| tick = function(timestamp) { | |
| if (timestamp - lastTickTime >= interval) { | |
| lastTickTime = timestamp; | |
| if (tickHandler) | |
| tickHandler(timestamp); | |
| } | |
| if (!shouldStop){ | |
| requestAnimationFrame(tick); | |
| } | |
| }, | |
| stop = function(){ | |
| shouldStop = true; | |
| }; | |
| return { | |
| start: start, | |
| stop: stop | |
| } | |
| } |
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How Can I connect this script with text in div?