@openui5/sap.ui.core/src/sap/base/Event.js

OpenUI5 Core Library sap.ui.core

/*!
 * OpenUI5
 * (c) Copyright 2026 SAP SE or an SAP affiliate company.
 * Licensed under the Apache License, Version 2.0 - see LICENSE.txt.
 */
// Provides class module:sap/base/Event
sap.ui.define(() => {
	"use strict";

	const EVENT_PARAMETERS_SYMBOL = Symbol("parameters");

	/**
	 * @author SAP SE
	 * @version 1.147.0
	 *
	 * Creates an event with the given <code>sType</code>,
	 * linked to the provided <code>oTarget</code> and enriched with the <code>oParameters</code>.
	 *
	 * @param {string} sType The type of the event
	 * @param {object} oParameters Parameters for this event. The parameters will be accessible as properties of the Event instance.
	 *
	 * @alias module:sap/base/Event
	 * @namespace
	 * @private
	 * @ui5-restricted sap.ui.core
	 */
	class Event {
		/**
		 *The type of the event
		 * @type {string}
		 * @private
		 * @ui5-restricted sap.ui.core
		 */
		#type;
		constructor(sType, oParameters) {
			//copy & freeze parameters
			for (const param in oParameters) {
				this[param] = oParameters[param];
				Object.defineProperty(this, param, { configurable: false, writable: false });
			}
			this[EVENT_PARAMETERS_SYMBOL] = oParameters;
			this.#type = sType;
		}
		get type () {
			return this.#type;
		}
		/**
		 * Returns the event parameters as map
		 * @param {module:sap/base/Event} oEvent The event object to retrieve the parameters
		 * @returns {object} Map of event parameters
		 * @private
		 * @ui5-restricted sap/base/i18n sap.ui.core
		 */
		static getParameters(oEvent) {
			return Object.assign({}, oEvent[EVENT_PARAMETERS_SYMBOL]);
		}
	}

	return Event;
});