@uirouter/core/lib-esm/params/stateParams.js

UI-Router Core: Framework agnostic, State-based routing for JavaScript Single Page Apps

import { extend, ancestors } from '../common/common';
var StateParams = /** @class */ (function () {
    function StateParams(params) {
        if (params === void 0) { params = {}; }
        extend(this, params);
    }
    /**
     * Merges a set of parameters with all parameters inherited between the common parents of the
     * current state and a given destination state.
     *
     * @param {Object} newParams The set of parameters which will be composited with inherited params.
     * @param {Object} $current Internal definition of object representing the current state.
     * @param {Object} $to Internal definition of object representing state to transition to.
     */
    StateParams.prototype.$inherit = function (newParams, $current, $to) {
        var parents = ancestors($current, $to), inherited = {}, inheritList = [];
        for (var i in parents) {
            if (!parents[i] || !parents[i].params)
                continue;
            var parentParams = parents[i].params;
            var parentParamsKeys = Object.keys(parentParams);
            if (!parentParamsKeys.length)
                continue;
            for (var j in parentParamsKeys) {
                if (parentParams[parentParamsKeys[j]].inherit == false || inheritList.indexOf(parentParamsKeys[j]) >= 0)
                    continue;
                inheritList.push(parentParamsKeys[j]);
                inherited[parentParamsKeys[j]] = this[parentParamsKeys[j]];
            }
        }
        return extend({}, inherited, newParams);
    };
    return StateParams;
}());
export { StateParams };
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