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gdibble/detection.js

Last active August 24, 2018 14:39
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detection.js
/* Detection: http://gist.github.com/df3fd4016e632344336f3227a6f159e6
* While userAgent sniffing is not ideal, arguably it is best in most cases
* throw in some proper feature detection & this will give you vast UI/UX control
*/
var userAgent = navigator.userAgent || navigator.vendor || window.opera || navigator.platform;
this.isMobile = (function (browserUserAgent) { return /(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(browserUserAgent) || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test((browserUserAgent).substr(0, 4)); })(userAgent); //regex via DetectmMbileBrowsers.com
this.isTablet = /(tablet|ipad|playbook|silk)|(android(?!.*mobile))/i.test(userAgent);
this.isIE = /(MSIE|Trident\/|Edge\/|rv:\d)/i.test(userAgent);
this.isIOS = (function (browserUserAgent) { // returns false if not, version as number or string as/when `≥8` || `≤3` (which evaluate as truthy)
var actuallyIE = window.MSStream, iosDevices = /iPad|iPhone|iPod/i, version;
if (iosDevices.test(browserUserAgent) && !actuallyIE) {
if (!!window.indexedDB) { version = '≥8'; }
if (!!window.SpeechSynthesisUtterance) { version = 7; }
if (!!window.webkitAudioContext) { version = 6; }
if (!!window.matchMedia) { version = 5; }
if (!!window.history && 'pushState' in window.history) { version = 4; }
else { version = '≤3';}
return version;
}
return false;
})(userAgent);
@gdibble
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gdibble commented May 20, 2016 •
edited

btw it's on the this scope as probably included in a MV* initialization fn. so after this, you could say this = window.app; etcetera 🍻

@gdibble
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gdibble commented May 20, 2016 •
edited

alternatively, if you have some sort of AMD mechanism, do this - wrap in in a fn and then call as below:

module.exports = function () {

  //
  //paste js above here
  //

  return this;
};

run in your MV* app.js/etc:

//at the top of the file:
var detection = require('./helpers/detection');

//in your init fn:
detection.call(this);

In your main template rendering view, you can do something like this:

//attach classes to <body> for CSS selection
document.body.className += (function (detected) { //pass string || array-of-strings
  function loop(array) {
    var classes = '';
    for (var i = 0, aLen = array.length; i < aLen; i++) {
      classes += (!!app[array[i]] ? (' ' + array[i]) : '');
    }
    return classes;
  }
  return detected instanceof Array ? loop(detected) :
         detected instanceof String ? loop([detected]) : '';
})([ 'isMobile', 'isTablet', 'isIE', 'isIOS' ]); // <<< pass in values from detection.js helper

^this is actually how i'm using this in several production cross-browser web apps   : :   enjoy

@gdibble
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gdibble commented May 20, 2016 •
edited

Ye may ask, why this over Modernizr?
Simply because it's small and does the trick in a few bytes instead of kilobytes
If you need elaborate feature-detection, just use the gold-standard^ 😉

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