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81 lines
1.8 KiB
Plaintext
81 lines
1.8 KiB
Plaintext
11 months ago
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/*!
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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 ) {
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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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}
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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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