97 lines
2.5 KiB
JavaScript
97 lines
2.5 KiB
JavaScript
'use strict';
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"use strict";
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class SystemRunner {
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/**
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* @param name - The function name that will be executed on the listeners added to this Runner.
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*/
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constructor(name) {
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this.items = [];
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this._name = name;
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}
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/* eslint-disable jsdoc/require-param, jsdoc/check-param-names */
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/**
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* Dispatch/Broadcast Runner to all listeners added to the queue.
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* @param {...any} params - (optional) parameters to pass to each listener
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*/
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/* eslint-enable jsdoc/require-param, jsdoc/check-param-names */
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emit(a0, a1, a2, a3, a4, a5, a6, a7) {
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const { name, items } = this;
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for (let i = 0, len = items.length; i < len; i++) {
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items[i][name](a0, a1, a2, a3, a4, a5, a6, a7);
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}
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return this;
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}
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/**
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* Add a listener to the Runner
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*
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* Runners do not need to have scope or functions passed to them.
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* All that is required is to pass the listening object and ensure that it has contains a function that has the same name
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* as the name provided to the Runner when it was created.
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*
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* Eg A listener passed to this Runner will require a 'complete' function.
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*
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* ```
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* import { Runner } from 'pixi.js';
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*
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* const complete = new Runner('complete');
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* ```
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*
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* The scope used will be the object itself.
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* @param {any} item - The object that will be listening.
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*/
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add(item) {
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if (item[this._name]) {
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this.remove(item);
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this.items.push(item);
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}
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return this;
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}
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/**
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* Remove a single listener from the dispatch queue.
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* @param {any} item - The listener that you would like to remove.
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*/
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remove(item) {
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const index = this.items.indexOf(item);
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if (index !== -1) {
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this.items.splice(index, 1);
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}
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return this;
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}
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/**
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* Check to see if the listener is already in the Runner
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* @param {any} item - The listener that you would like to check.
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*/
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contains(item) {
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return this.items.indexOf(item) !== -1;
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}
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/** Remove all listeners from the Runner */
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removeAll() {
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this.items.length = 0;
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return this;
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}
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/** Remove all references, don't use after this. */
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destroy() {
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this.removeAll();
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this.items = null;
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this._name = null;
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}
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/**
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* `true` if there are no this Runner contains no listeners
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* @readonly
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*/
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get empty() {
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return this.items.length === 0;
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}
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/**
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* The name of the runner.
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* @readonly
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*/
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get name() {
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return this._name;
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}
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}
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exports.SystemRunner = SystemRunner;
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//# sourceMappingURL=SystemRunner.js.map
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