bem-entity.js

bem-entity.js

/**
 * Scope creator
 * @return {}
 */
function create () {
    var undef;

    /**
     * BEM entity object
     * @constructor
     * @param {Object} props
     */
    function BEMEntity(props) {
        this.block = props.block;
        if (props.elem) this.elem = props.elem;
        if (props.modName) this.modName = props.modName;
        if (props.modVal) this.modVal = props.modVal;
    }

    var ptp = BEMEntity.prototype;
    ptp.elem = undef;
    ptp.modName = undef;
    ptp.modVal = undef;

    /**
     * BEMEntity public API
     * @param {Object} props - block, elem, mod, val, etc.
     * @return {BEMEntity}
     */
    function BEMEntityFactory (props) {
        return new BEMEntity(props);
    };

    BEMEntityFactory.create = create;

    /**
     * Object.defineProperty binded to BEMEntity.prototype
     * @param  {[type]}   key [description]
     * @param  {Function} fn  [description]
     * @return {[type]}       [description]
     */
    BEMEntityFactory.defineProperty = function (key, fn) {
        Object.defineProperty(ptp, key, {
            get: fn,
            enumerable: true
        });
    };

    BEMEntityFactory.defineProperties = function (key, fns) {
        var props = {};
        for (var k in fns) {
            if (!fns.hasOwnProperty(k)) continue;
            props[k] = {
                get: fns[k],
                enumerable: true
            };
        }
        Object.defineProperties(ptp, props);
    };

    return BEMEntityFactory;
}

/**
 * BEMEntity factory
 */
module.exports = create();