@casual-simulation/aux-common/Event.js

Common library for AUX projects

/* CasualOS is a set of web-based tools designed to facilitate the creation of real-time, multi-user, context-aware interactive experiences.
 *
 * Copyright (c) 2019-2025 Casual Simulation, Inc.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
/**
 * Event that has no arguments.
 */
export class Event {
    constructor() {
        this._listeners = [];
    }
    addListener(listener) {
        this._listeners.push(listener);
    }
    removeListener(listener) {
        const index = this._listeners.indexOf(listener);
        if (index !== -1) {
            this._listeners.splice(index, 1);
        }
    }
    removeAllListeners() {
        this._listeners = [];
    }
    invoke() {
        this._listeners.forEach((l) => {
            l();
        });
    }
}
/**
 * Event that takes typed argument.
 */
export class ArgEvent {
    constructor() {
        this._listeners = [];
    }
    addListener(listener) {
        this._listeners.push(listener);
    }
    removeListener(listener) {
        const index = this._listeners.indexOf(listener);
        if (index !== -1) {
            this._listeners.splice(index, 1);
        }
    }
    removeAllListeners() {
        this._listeners = [];
    }
    invoke(arg) {
        this._listeners.forEach((l) => {
            l(arg);
        });
    }
}
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