/*! * classie - class helper functions * from bonzo https://github.com/ded/bonzo * * classie.has( elem, 'my-class' ) -> true/false * classie.add( elem, 'my-new-class' ) * classie.remove( elem, 'my-unwanted-class' ) * classie.toggle( elem, 'my-class' ) */ /*jshint browser: true, strict: true, undef: true */ /*global define: false */ (function (window) { 'use strict'; // class helper functions from bonzo https://github.com/ded/bonzo function classReg(className) { return new RegExp("(^|\\s+)" + className + "(\\s+|$)"); } // classList support for class management // altho to be fair, the api sucks because it won't accept multiple classes at once var hasClass, addClass, removeClass; if ('classList' in document.documentElement) { hasClass = function (elem, c) { return elem.classList.contains(c); }; addClass = function (elem, c) { elem.classList.add(c); }; removeClass = function (elem, c) { elem.classList.remove(c); }; } else { hasClass = function (elem, c) { return classReg(c).test(elem.className); }; addClass = function (elem, c) { if (!hasClass(elem, c)) { elem.className = elem.className + ' ' + c; } }; removeClass = function (elem, c) { elem.className = elem.className.replace(classReg(c), ' '); }; } function toggleClass(elem, c) { var fn = hasClass(elem, c) ? removeClass : addClass; fn(elem, c); } var classie = { // full names hasClass: hasClass, addClass: addClass, removeClass: removeClass, toggleClass: toggleClass, // short names has: hasClass, add: addClass, remove: removeClass, toggle: toggleClass }; // transport if (typeof define === 'function' && define.amd) { // AMD define(classie); } else { // browser global window.classie = classie; } })(window);