corrade-nucleus-nucleons – Rev 20

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define( [
        "../core",
        "../var/rnothtmlwhite",
        "./var/acceptData"
], function( jQuery, rnothtmlwhite, acceptData ) {

"use strict";

function Data() {
        this.expando = jQuery.expando + Data.uid++;
}

Data.uid = 1;

Data.prototype = {

        cache: function( owner ) {

                // Check if the owner object already has a cache
                var value = owner[ this.expando ];

                // If not, create one
                if ( !value ) {
                        value = {};

                        // We can accept data for non-element nodes in modern browsers,
                        // but we should not, see #8335.
                        // Always return an empty object.
                        if ( acceptData( owner ) ) {

                                // If it is a node unlikely to be stringify-ed or looped over
                                // use plain assignment
                                if ( owner.nodeType ) {
                                        owner[ this.expando ] = value;

                                // Otherwise secure it in a non-enumerable property
                                // configurable must be true to allow the property to be
                                // deleted when data is removed
                                } else {
                                        Object.defineProperty( owner, this.expando, {
                                                value: value,
                                                configurable: true
                                        } );
                                }
                        }
                }

                return value;
        },
        set: function( owner, data, value ) {
                var prop,
                        cache = this.cache( owner );

                // Handle: [ owner, key, value ] args
                // Always use camelCase key (gh-2257)
                if ( typeof data === "string" ) {
                        cache[ jQuery.camelCase( data ) ] = value;

                // Handle: [ owner, { properties } ] args
                } else {

                        // Copy the properties one-by-one to the cache object
                        for ( prop in data ) {
                                cache[ jQuery.camelCase( prop ) ] = data[ prop ];
                        }
                }
                return cache;
        },
        get: function( owner, key ) {
                return key === undefined ?
                        this.cache( owner ) :

                        // Always use camelCase key (gh-2257)
                        owner[ this.expando ] && owner[ this.expando ][ jQuery.camelCase( key ) ];
        },
        access: function( owner, key, value ) {

                // In cases where either:
                //
                //   1. No key was specified
                //   2. A string key was specified, but no value provided
                //
                // Take the "read" path and allow the get method to determine
                // which value to return, respectively either:
                //
                //   1. The entire cache object
                //   2. The data stored at the key
                //
                if ( key === undefined ||
                                ( ( key && typeof key === "string" ) && value === undefined ) ) {

                        return this.get( owner, key );
                }

                // When the key is not a string, or both a key and value
                // are specified, set or extend (existing objects) with either:
                //
                //   1. An object of properties
                //   2. A key and value
                //
                this.set( owner, key, value );

                // Since the "set" path can have two possible entry points
                // return the expected data based on which path was taken[*]
                return value !== undefined ? value : key;
        },
        remove: function( owner, key ) {
                var i,
                        cache = owner[ this.expando ];

                if ( cache === undefined ) {
                        return;
                }

                if ( key !== undefined ) {

                        // Support array or space separated string of keys
                        if ( Array.isArray( key ) ) {

                                // If key is an array of keys...
                                // We always set camelCase keys, so remove that.
                                key = key.map( jQuery.camelCase );
                        } else {
                                key = jQuery.camelCase( key );

                                // If a key with the spaces exists, use it.
                                // Otherwise, create an array by matching non-whitespace
                                key = key in cache ?
                                        [ key ] :
                                        ( key.match( rnothtmlwhite ) || [] );
                        }

                        i = key.length;

                        while ( i-- ) {
                                delete cache[ key[ i ] ];
                        }
                }

                // Remove the expando if there's no more data
                if ( key === undefined || jQuery.isEmptyObject( cache ) ) {

                        // Support: Chrome <=35 - 45
                        // Webkit & Blink performance suffers when deleting properties
                        // from DOM nodes, so set to undefined instead
                        // https://bugs.chromium.org/p/chromium/issues/detail?id=378607 (bug restricted)
                        if ( owner.nodeType ) {
                                owner[ this.expando ] = undefined;
                        } else {
                                delete owner[ this.expando ];
                        }
                }
        },
        hasData: function( owner ) {
                var cache = owner[ this.expando ];
                return cache !== undefined && !jQuery.isEmptyObject( cache );
        }
};

return Data;
} );