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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;
        }
});

});