github.com/sl1pm4t/consul@v1.4.5-0.20190325224627-74c31c540f9c/ui/javascripts/libs/classie.js (about)

     1  /*!
     2   * classie - class helper functions
     3   * from bonzo https://github.com/ded/bonzo
     4   * 
     5   * classie.has( elem, 'my-class' ) -> true/false
     6   * classie.add( elem, 'my-new-class' )
     7   * classie.remove( elem, 'my-unwanted-class' )
     8   * classie.toggle( elem, 'my-class' )
     9   */
    10  
    11  /*jshint browser: true, strict: true, undef: true */
    12  /*global define: false */
    13  
    14  ( function( window ) {
    15  
    16  'use strict';
    17  
    18  // class helper functions from bonzo https://github.com/ded/bonzo
    19  
    20  function classReg( className ) {
    21    return new RegExp("(^|\\s+)" + className + "(\\s+|$)");
    22  }
    23  
    24  // classList support for class management
    25  // although to be fair, the api sucks because it won't accept multiple classes at once
    26  var hasClass, addClass, removeClass;
    27  
    28  if ( 'classList' in document.documentElement ) {
    29    hasClass = function( elem, c ) {
    30      return elem.classList.contains( c );
    31    };
    32    addClass = function( elem, c ) {
    33      elem.classList.add( c );
    34    };
    35    removeClass = function( elem, c ) {
    36      elem.classList.remove( c );
    37    };
    38  }
    39  else {
    40    hasClass = function( elem, c ) {
    41      return classReg( c ).test( elem.className );
    42    };
    43    addClass = function( elem, c ) {
    44      if ( !hasClass( elem, c ) ) {
    45        elem.className = elem.className + ' ' + c;
    46      }
    47    };
    48    removeClass = function( elem, c ) {
    49      elem.className = elem.className.replace( classReg( c ), ' ' );
    50    };
    51  }
    52  
    53  function toggleClass( elem, c ) {
    54    var fn = hasClass( elem, c ) ? removeClass : addClass;
    55    fn( elem, c );
    56  }
    57  
    58  var classie = {
    59    // full names
    60    hasClass: hasClass,
    61    addClass: addClass,
    62    removeClass: removeClass,
    63    toggleClass: toggleClass,
    64    // short names
    65    has: hasClass,
    66    add: addClass,
    67    remove: removeClass,
    68    toggle: toggleClass
    69  };
    70  
    71  // transport
    72  if ( typeof define === 'function' && define.amd ) {
    73    // AMD
    74    define( classie );
    75  } else {
    76    // browser global
    77    window.classie = classie;
    78  }
    79  
    80  })( window );