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