mirror of
https://github.com/streetwriters/notesnook.git
synced 2025-12-22 06:29:29 +01:00
e53cc648f0
this was a stupid bug where publishing any type of event would unsubscribe all events that had once set to true.
83 lines
2.4 KiB
JavaScript
83 lines
2.4 KiB
JavaScript
/*
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This file is part of the Notesnook project (https://notesnook.com/)
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Copyright (C) 2023 Streetwriters (Private) Limited
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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class EventManager {
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constructor() {
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this._registry = new Map();
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}
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unsubscribeAll() {
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this._registry.clear();
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}
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subscribeMulti(names, handler, thisArg) {
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names.forEach((name) => {
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this.subscribe(name, handler.bind(thisArg));
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});
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}
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subscribe(name, handler, once = false) {
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if (!name || !handler) throw new Error("name and handler are required.");
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this._registry.set(handler, { name, once });
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return { unsubscribe: () => this.unsubscribe(name, handler) };
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}
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subscribeSingle(name, handler) {
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if (!name || !handler) throw new Error("name and handler are required.");
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this._registry.forEach((props, handler) => {
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if (props.name === name) this._registry.delete(handler);
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});
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this._registry.set(handler, { name, once: false });
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return { unsubscribe: () => this.unsubscribe(name, handler) };
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}
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unsubscribe(_name, handler) {
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return this._registry.delete(handler);
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}
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publish(name, ...args) {
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this._registry.forEach((props, handler) => {
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if (props.name === name) {
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handler(...args);
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if (props.once) this._registry.delete(handler);
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}
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});
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}
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async publishWithResult(name, ...args) {
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const handlers = [];
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this._registry.forEach((props, handler) => {
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if (props.name === name) {
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handlers.push(handler);
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if (props.once) this._registry.delete(handler);
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}
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});
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if (handlers.length <= 0) return true;
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return await Promise.all(handlers.map((handler) => handler(...args)));
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}
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remove(...names) {
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this._registry.forEach((props, handler) => {
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if (names.includes(props.name)) this._registry.delete(handler);
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});
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}
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}
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export default EventManager;
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