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bower_components/jquery/src/attributes/classes.js 4.06 KB
74249687   Luigi Serra   Cross browser con...
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  define([
  	"../core",
  	"../var/rnotwhite",
  	"../var/strundefined",
  	"../data/var/data_priv",
  	"../core/init"
  ], function( jQuery, rnotwhite, strundefined, data_priv ) {
  
  var rclass = /[\t\r\n\f]/g;
  
  jQuery.fn.extend({
  	addClass: function( value ) {
  		var classes, elem, cur, clazz, j, finalValue,
  			proceed = typeof value === "string" && value,
  			i = 0,
  			len = this.length;
  
  		if ( jQuery.isFunction( value ) ) {
  			return this.each(function( j ) {
  				jQuery( this ).addClass( value.call( this, j, this.className ) );
  			});
  		}
  
  		if ( proceed ) {
  			// The disjunction here is for better compressibility (see removeClass)
  			classes = ( value || "" ).match( rnotwhite ) || [];
  
  			for ( ; i < len; i++ ) {
  				elem = this[ i ];
  				cur = elem.nodeType === 1 && ( elem.className ?
  					( " " + elem.className + " " ).replace( rclass, " " ) :
  					" "
  				);
  
  				if ( cur ) {
  					j = 0;
  					while ( (clazz = classes[j++]) ) {
  						if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
  							cur += clazz + " ";
  						}
  					}
  
  					// only assign if different to avoid unneeded rendering.
  					finalValue = jQuery.trim( cur );
  					if ( elem.className !== finalValue ) {
  						elem.className = finalValue;
  					}
  				}
  			}
  		}
  
  		return this;
  	},
  
  	removeClass: function( value ) {
  		var classes, elem, cur, clazz, j, finalValue,
  			proceed = arguments.length === 0 || typeof value === "string" && value,
  			i = 0,
  			len = this.length;
  
  		if ( jQuery.isFunction( value ) ) {
  			return this.each(function( j ) {
  				jQuery( this ).removeClass( value.call( this, j, this.className ) );
  			});
  		}
  		if ( proceed ) {
  			classes = ( value || "" ).match( rnotwhite ) || [];
  
  			for ( ; i < len; i++ ) {
  				elem = this[ i ];
  				// This expression is here for better compressibility (see addClass)
  				cur = elem.nodeType === 1 && ( elem.className ?
  					( " " + elem.className + " " ).replace( rclass, " " ) :
  					""
  				);
  
  				if ( cur ) {
  					j = 0;
  					while ( (clazz = classes[j++]) ) {
  						// Remove *all* instances
  						while ( cur.indexOf( " " + clazz + " " ) >= 0 ) {
  							cur = cur.replace( " " + clazz + " ", " " );
  						}
  					}
  
  					// Only assign if different to avoid unneeded rendering.
  					finalValue = value ? jQuery.trim( cur ) : "";
  					if ( elem.className !== finalValue ) {
  						elem.className = finalValue;
  					}
  				}
  			}
  		}
  
  		return this;
  	},
  
  	toggleClass: function( value, stateVal ) {
  		var type = typeof value;
  
  		if ( typeof stateVal === "boolean" && type === "string" ) {
  			return stateVal ? this.addClass( value ) : this.removeClass( value );
  		}
  
  		if ( jQuery.isFunction( value ) ) {
  			return this.each(function( i ) {
  				jQuery( this ).toggleClass( value.call(this, i, this.className, stateVal), stateVal );
  			});
  		}
  
  		return this.each(function() {
  			if ( type === "string" ) {
  				// Toggle individual class names
  				var className,
  					i = 0,
  					self = jQuery( this ),
  					classNames = value.match( rnotwhite ) || [];
  
  				while ( (className = classNames[ i++ ]) ) {
  					// Check each className given, space separated list
  					if ( self.hasClass( className ) ) {
  						self.removeClass( className );
  					} else {
  						self.addClass( className );
  					}
  				}
  
  			// Toggle whole class name
  			} else if ( type === strundefined || type === "boolean" ) {
  				if ( this.className ) {
  					// store className if set
  					data_priv.set( this, "__className__", this.className );
  				}
  
  				// If the element has a class name or if we're passed `false`,
  				// then remove the whole classname (if there was one, the above saved it).
  				// Otherwise bring back whatever was previously saved (if anything),
  				// falling back to the empty string if nothing was stored.
  				this.className = this.className || value === false ? "" : data_priv.get( this, "__className__" ) || "";
  			}
  		});
  	},
  
  	hasClass: function( selector ) {
  		var className = " " + selector + " ",
  			i = 0,
  			l = this.length;
  		for ( ; i < l; i++ ) {
  			if ( this[i].nodeType === 1 && (" " + this[i].className + " ").replace(rclass, " ").indexOf( className ) >= 0 ) {
  				return true;
  			}
  		}
  
  		return false;
  	}
  });
  
  });