Modernizr/Modernizr

/*!
{
  "name": "Audio Preload",
  "property": "audiopreload",
  "tags": ["audio", "media"],
  "async": true,
  "warnings": ["This test is very large – only include it if you absolutely need it"]
}
!*/
/* DOC
Detects if audio can be downloaded in the background before it starts playing in the `<audio>` element
*/
define(['Modernizr', 'addTest', 'docElement', 'createElement', 'test/audio/audio'], function(Modernizr, addTest, docElement, createElement) {

  Modernizr.addAsyncTest(function() {
    var timeout;
    var waitTime = 300;
    var elem = createElement('audio');
    var elemStyle = elem.style;

    function testpreload(event) {
      clearTimeout(timeout);
      var result = event !== undefined && event.type === 'loadeddata' ? true : false; //need to check if event is not undefined here in case function is evoked from timeout (no parameters)
      elem.removeEventListener('loadeddata', testpreload, false);
      addTest('audiopreload', result);
      // Cleanup, but don't assume elem is still in the page -
      // an extension (eg Flashblock) may already have removed it.
      if (elem.parentNode) {
        elem.parentNode.removeChild(elem);
      }
    }

    //skip the test if audio itself, or the preload
    //element on it isn't supported
    if (!Modernizr.audio || !('preload' in elem)) {
      addTest('audiopreload', false);
      return;
    }

    elemStyle.position = 'absolute';
    elemStyle.height = 0;
    elemStyle.width = 0;

    try {
      if (Modernizr.audio.mp3) {
        //75ms of silence (minimum Mp3 duration loaded by Safari, not tested other formats thoroughly: may be possible to shrink base64 URI)
        elem.src = 'data:audio/mpeg;base64,//MUxAAB6AXgAAAAAPP+c6nf//yi/6f3//MUxAMAAAIAAAjEcH//0fTX6C9Lf//0//MUxA4BeAIAAAAAAKX2/6zv//+IlR4f//MUxBMCMAH8AAAAABYWalVMQU1FMy45//MUxBUB0AH0AAAAADkuM1VVVVVVVVVV//MUxBgBUATowAAAAFVVVVVVVVVVVVVV';
      }
      else if (Modernizr.audio.m4a) {
        elem.src = 'data:audio/x-m4a;base64,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';
      }
      else if (Modernizr.audio.ogg) {
        elem.src = 'data:audio/ogg;base64,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';
      }
      else if (Modernizr.audio.wav) {
        elem.src = 'data:audio/wav;base64,UklGRvwZAABXQVZFZm10IBAAAAABAAEARKwAAIhYAQACABAAZGF0YdgZAAAAAAEA/v8CAP//AAABAP////8DAPz/BAD9/wEAAAAAAAAAAAABAP7/AgD//wAAAQD//wAAAQD//wAAAQD+/wIA//8AAAAAAAD//wIA/v8BAAAA//8BAAAA//8BAP//AQAAAP//AQD//wEAAAD//wEA//8BAP//AQD//wEA//8BAP//AQD+/wMA/f8DAP3/AgD+/wIA/////wMA/f8CAP7/AgD+/wMA/f8CAP7/AgD//wAAAAAAAAAAAQD+/wIA/v8CAP7/AwD9/wIA/v8BAAEA/v8CAP7/AQAAAAAAAAD//wEAAAD//wIA/f8DAP7/AQD//wEAAAD//wEA//8CAP7/AQD//wIA/v8CAP7/AQAAAAAAAAD//wEAAAAAAAAA//8BAP//AgD9/wQA+/8FAPz/AgAAAP//AgD+/wEAAAD//wIA/v8CAP3/BAD8/wQA/P8DAP7/AwD8/wQA/P8DAP7/AQAAAAAA//8BAP//AgD+/wEAAAD//wIA/v8BAP//AQD//wEAAAD//wEA//8BAAAAAAAAAP//AgD+/wEAAAAAAAAAAAD//wEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAP//AgD+/wIA/v8BAP//AQABAP7/AQD//wIA/v8CAP3/AwD/////AgD9/wMA/v8BAP//AQAAAP//AQD//wEA//8BAP//AAABAP//AAABAP//AQD//wAAAAACAP3/AwD9/wIA//8BAP//AQD//wEA//8BAP//AgD9/wMA/v8AAAIA/f8CAAAA/v8EAPv/BAD9/wIAAAD+/wQA+v8HAPr/BAD+/wEAAAD//wIA/f8EAPz/BAD7/wUA/P8EAPz/AwD+/wEAAAD//wEAAAAAAP//AgD8/wUA+/8FAPz/AwD9/wIA//8AAAEA/v8CAP//AQD//wAAAAABAP//AgD9/wMA/f8EAPz/AwD+/wAAAwD7/wUA/P8DAP7/AQAAAP//AgD+/wEAAQD+/wIA/v8BAAEA/v8CAP7/AQAAAP//AgD9/wMA/f8DAP7/AgD+/wEAAAAAAAEA//8AAAEA/v8DAP3/AgD//wEA//8BAP7/AwD9/wMA/v8BAP//AQAAAP//AgD9/wMA/v8BAP//AQAAAP//AgD+/wEAAQD+/wIA/////wIA//8AAAEA/f8DAP//AAABAP////8DAP3/AwD+/wEA//8BAP//AQAAAAAA//8BAP//AQD//wEA//8BAP//AAAAAAEA//8BAP7/AgD//wEA//8AAAAAAAAAAAAAAAD//wIA/v8BAAAA//8BAAEA/v8BAAAA//8DAPz/AwD+/wIA/v8CAP3/AwD+/wEAAAD//wEA//8BAAAA//8BAAAA/v8EAPv/BAD+/wAAAAABAP7/AgD//wAAAAABAP7/AgD//wAAAAAAAAAAAAABAP3/BAD8/wQA/f8BAAAAAAABAP7/AgD+/wIA/v8CAP7/AgD+/wIA/v8BAAAAAAD//wIA/f8DAP7/AAABAP//AAACAPz/BAD9/wIA//8AAP//AwD9/wMA/P8EAP3/AwD9/wIA//8BAP//AQD+/wMA/f8DAP7/AAABAP//AQAAAP//AQD//wIA/f8DAP7/AQAAAP//AQAAAAAA//8CAP7/AQABAP7/AgD+/wEAAQD+/wIA/v8CAP////8CAP7/AgD//wAAAAABAP7/AwD9/wIAAAD+/wMA/f8CAP//AQD+/wMA/f8CAP//AAACAPz/BQD6/wUA/v///wIA/v8CAP3/BAD7/wYA+v8FAPz/AwD/////AgD+/wEAAAD//wEAAAD//wIA/f8DAP7/AQAAAP//AgD//wAA//8BAAAAAAAAAP//AQD//wEA//8AAAIA/f8DAP3/AgAAAP//AQD//wEA//8AAAEA//8BAP////8CAP//AAABAP3/BAD9/wIA/v8BAAEA//8BAP7/AgD//wEA//8AAAEA//8BAP//AAAAAAEA//8BAP7/AgD//wEA//8AAAAAAQD+/wIA/v8BAAAAAAD//wIA/v8BAAAAAAAAAAAAAQD+/wMA/f8CAP//AQD//wIA/f8DAP7/AQD//wEA//8CAP7/AAABAP7/AwD9/wMA/v8AAAEA//8BAAAAAAD//wIA/v8BAAAA//8CAP7/AgD+/wEA//8CAP7/AgD//wAAAAAAAAAAAQD//wEA/v8DAPz/BQD8/wIA//8AAAEAAAD//wEA//8BAP//AQAAAAAA//8BAP//AgD+/wEAAAAAAP//AQD+/wMA/////wEA/v8CAP//AQD//wEA//8AAAEA//8BAAAA/v8EAPz/AwD+/wEAAAAAAAAA//8CAP7/AQD//wEA//8BAP//AAABAP7/AwD9/wIA//8BAP//AQD//wEA//8AAAEA/v8EAPv/BAD9/wIA//8BAP7/AwD9/wIA//8AAAEA//8BAP//AQD//wAAAQD//wEAAAD+/wMA/v8AAAIA/f8DAP7/AQD//wAAAQD+/wMA/f8CAP//AAABAP7/AgD+/wMA/f8CAP7/AQABAP7/AgD+/wIA/v8CAP7/AwD8/wMA//8AAAEA//8AAAAAAAABAP//AQD//wAAAQD//wIA/f8DAP3/AwD+/wAAAgD9/wIA//8AAAEAAAD+/wMA/P8FAPv/BAD9/wIA//8AAP//AgD+/wIA/v8BAAAAAAD//wEAAAAAAP//AQD//wEA//8BAP//AAABAP7/AwD9/wIA//8BAP//AAABAP//AQD//wAAAQD//wEA//8BAP//AAABAAAA//8BAP7/AwD9/wMA/f8DAP3/AgD//wEA//8BAP7/AgD//wAAAgD8/wQA/f8CAP//AQD+/wMA/f8CAP7/AgD//wAAAAAAAAAAAAABAP7/AwD9/wIA/v8DAP3/AwD9/wIA/v8DAPz/BQD7/wQA/f8CAP7/AwD9/wMA/f8CAP//AQAAAP7/AwD+/wEA//8AAAEAAAAAAP//AAABAP//AQAAAP7/AwD9/wMA/f8CAP//AQD//wEA//8AAAIA/f8CAAAA//8BAAAA//8BAAAA/v8EAPv/BAD9/wIA//8AAAEA/v8CAP//AAABAP//AAABAP//AAABAP7/AwD8/wQA/f8CAAAA/v8DAP3/AwD9/wMA/v8BAAAA//8BAAAA//8CAP7/AQAAAAAAAAAAAAAA//8CAP7/AgD+/wIA/v8CAP7/AgD//wAAAQD//wAAAQD//wAAAQD//wAAAQD+/wIA//8AAAAAAQD+/wMA/f8CAP//AQD//wEA//8AAAEA/v8DAP3/AgD//wAAAAABAP7/AwD9/wIA//8AAAEA/v8DAP3/AgD//wAAAAABAP7/AwD8/wMA/v8CAP//AAD//wIA/v8CAP7/AQABAP7/AQAAAP//AgD/////AQD//wEAAAD//wEA/v8EAPv/BAD9/wMA/v8BAAAA//8BAAEA/P8GAPr/BQD8/wMA/v8BAAAA//8CAP7/AQABAP3/BAD7/wYA+/8EAPz/AwD//wEA//8BAP7/BAD8/wMA/v8AAAIA/v8BAAAA//8BAAAA//8BAAAA//8CAP3/AwD+/wAAAgD8/wUA/P8DAP7/AAABAAAAAAD//wEAAAD//wIA/f8DAP7/AQAAAAAAAAAAAAAAAAAAAAAAAAAAAAEA/f8EAPz/AwD/////AgD+/wIA/f8DAP7/AgD+/wEA//8CAP7/AQD//wEAAAAAAP//AQAAAP//AgD9/wMA/v8BAAAA//8BAP//AQAAAP//AAACAP3/BAD7/wQA/v8BAAAA//8BAP//AQAAAP//AQAAAP7/BAD7/wUA+/8EAP3/AgD//wAAAQD+/wIA//8AAAEA/v8CAP//AQD+/wEAAAAAAAAAAAD//wEA//8CAP3/AwD9/wIA//8AAAAAAAAAAAAA//8BAP//AgD+/wEA//8CAP7/AQAAAP//AgD/////AgD/////AgD+/wIA//8AAP//AQABAP7/AgD9/wMA/v8CAP////8BAAAAAAAAAAAA//8CAP////8DAPz/AwD+/wEAAAAAAP//AQD//wEAAAD//wEAAAD+/wQA+/8FAPz/AgAAAP//AgD9/wMA/v8BAAAAAAD//wEAAAD//wIA/v8BAAAAAAD//wIA/v8BAAAA//8BAAAA//8CAP7/AQD//wEA//8BAAAA//8BAP//AAABAP//AQAAAP7/AgD//wEA//8AAAAAAQD+/wMA/P8EAP7///8DAPz/BQD8/wEAAQD+/wMA/v8AAAEA//8BAP//AQD//wEA/v8CAP//AQD//wAAAAABAAAA//8BAP//AQAAAAAA//8BAP//AgD+/wAAAQD//wIA/f8CAP//AQAAAP7/AwD9/wMA/v8BAP//AAABAP//AgD9/wIA//8BAAAA//8BAAAA//8CAP3/AwD+/wEAAAD+/wQA/P8DAP7/AAACAP7/AQAAAP//AQAAAP//AQAAAP//AgD9/wIAAAD//wIA/f8DAP7/AQD//wEA//8CAP7/AQD//wAAAQD//wEA//8AAAAAAQD//wEAAAD9/wUA+/8FAPz/AgD//wAAAQD//wAAAQD+/wMA/f8BAAEA/v8CAP7/AgD+/wIA/v8BAAAAAAAAAAAAAAD//wIA/v8CAP////8CAP7/AgD+/wIA/v8CAP7/AQAAAP//AQAAAP//AQD//wAAAQD//wAAAQD+/wMA/f8CAAAA/v8DAP3/AgAAAP//AQAAAP7/AwD9/wMA/v8BAP//AQD//wEAAAD+/wMA/f8CAAAA/v8CAP//AAAAAAEA//8AAAEA/v8DAP3/AwD9/wIA//8BAP//AgD8/wQA/v8BAAAA/v8CAP//AQD//wAAAAAAAAEA/f8EAPz/BAD9/wIA//8AAAAAAAABAP//AAAAAAAAAAABAP3/B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      }
      else {
        addTest('audiopreload', false);
        return;
      }
    }

    catch (e) {
      addTest('audiopreload', false);
      return;
    }

    elem.setAttribute('preload', 'auto');
    elem.style.cssText = 'display:none';
    docElement.appendChild(elem);
    // wait for the next tick to add the listener, otherwise the element may
    // not have time to play in high load situations (e.g. the test suite)
    setTimeout(function() {
      elem.addEventListener('loadeddata', testpreload, false);
      timeout = setTimeout(testpreload, waitTime);
    }, 0);
  });
});