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?