@barchart/common-js/dist/cjs/messaging/EventMap.js

Library of common JavaScript utilities

var __create = Object.create;
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __getProtoOf = Object.getPrototypeOf;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
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};
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  return to;
};
var __toESM = (mod, isNodeMode, target) => (target = mod != null ? __create(__getProtoOf(mod)) : {}, __copyProps(
  // If the importer is in node compatibility mode or this is not an ESM
  // file that has been converted to a CommonJS file using a Babel-
  // compatible transform (i.e. "__esModule" has not been set), then set
  // "default" to the CommonJS "module.exports" for node compatibility.
  isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target,
  mod
));
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
var EventMap_exports = {};
__export(EventMap_exports, {
  default: () => EventMap
});
module.exports = __toCommonJS(EventMap_exports);
var assert = __toESM(require("./../lang/assert.js"));
var import_Disposable = __toESM(require("./../lang/Disposable.js"));
var import_Event = __toESM(require("./Event.js"));
class EventMap extends import_Disposable.default {
  #events;
  constructor() {
    super();
    this.#events = {};
  }
  /**
   * Fires the appropriate event which is mapped to the event name.
   * See {@link Event#fire} for more information.
   *
   * @public
   * @param {string} eventName - The event's name.
   * @param {*} data - The data to provide to observers.
   */
  fire(eventName, data) {
    const event = this.#events[eventName];
    if (event) {
      event.fire(data);
    }
  }
  /**
   * Registers a handler. See {@link Event#register} for more information.
   *
   * @public
   * @param {string} eventName - The event's name.
   * @param {Function} handler
   * @returns {Disposable}
   */
  register(eventName, handler) {
    assert.argumentIsRequired(eventName, "eventName", String);
    if (this.disposed) {
      throw new Error("The event has been disposed.");
    }
    let event = this.#events[eventName];
    if (!event) {
      event = this.#events[eventName] = new import_Event.default(this);
    }
    return event.register(handler);
  }
  /**
   * Removes a handler. See {@link Event#unregister} for more information.
   *
   * @public
   * @param {string} eventName - The event's name.
   * @param {Function} handler
   */
  unregister(eventName, handler) {
    assert.argumentIsRequired(eventName, "eventName", String);
    const event = this.#events[eventName];
    if (event) {
      event.unregister(handler);
      if (event.getIsEmpty()) {
        delete this.#events[eventName];
      }
    }
  }
  /**
   * Clears an event's handlers. See {@link Event#clear} for more information.
   *
   * @public
   * @param {string} eventName - The event's name.
   */
  clear(eventName) {
    assert.argumentIsRequired(eventName, "eventName", String);
    const event = this.#events[eventName];
    if (event) {
      event.clear();
      delete this.#events[eventName];
    }
  }
  /**
   * Returns true, if no handlers are currently registered for the
   * specified event. See {@link Event#getIsEmpty} for more information.
   *
   * @public
   * @param {string} eventName
   * @returns {boolean}
   */
  getIsEmpty(eventName) {
    const event = this.#events[eventName];
    let returnVal;
    if (event) {
      returnVal = event.getIsEmpty();
    } else {
      returnVal = true;
    }
    return returnVal;
  }
  /**
   * Returns an array of all the event names.
   *
   * @public
   * @returns {Array<string>}
   */
  getKeys() {
    const keys = [];
    for (let key in this.#events) {
      if (Object.prototype.hasOwnProperty.call(this.#events, key)) {
        keys.push(key);
      }
    }
    return keys;
  }
  /**
   * Returns true, if an event with the given name exists.
   *
   * @public
   * @param {string} key
   * @returns {boolean}
   */
  hasKey(key) {
    return Object.prototype.hasOwnProperty.call(this.#events, key);
  }
  /**
   * @protected
   * @override
   */
  _onDispose() {
    let keys = this.getKeys();
    for (let i = 0; i < keys.length; i++) {
      let key = keys[i];
      this.#events[key].dispose();
    }
    this.#events = {};
  }
  /**
   * Returns a string representation.
   *
   * @public
   * @returns {string}
   */
  toString() {
    return "[EventMap]";
  }
}

{
	const cjsExports = module.exports;
	const cjsDefaultExport = cjsExports && cjsExports.__esModule ? cjsExports.default : cjsExports;

	if (cjsDefaultExport && (typeof cjsDefaultExport === 'function' || typeof cjsDefaultExport === 'object')) {
		Object.keys(cjsExports).forEach((key) => {
			if (key !== 'default' && key !== '__esModule') {
				cjsDefaultExport[key] = cjsExports[key];
			}
		});
	}

	module.exports = cjsDefaultExport;
}