72 lines
2.1 KiB
JavaScript
72 lines
2.1 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.EventEmitter = exports.Disposable = void 0;
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/**
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* Copyright (c) Microsoft Corporation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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let Disposable = exports.Disposable = void 0;
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(function (_Disposable) {
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function disposeAll(disposables) {
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for (const disposable of disposables.splice(0)) disposable.dispose();
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}
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_Disposable.disposeAll = disposeAll;
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})(Disposable || (exports.Disposable = Disposable = {}));
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class EventEmitter {
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constructor() {
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this.event = void 0;
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this._deliveryQueue = void 0;
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this._listeners = new Set();
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this.event = (listener, disposables) => {
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this._listeners.add(listener);
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let disposed = false;
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const self = this;
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const result = {
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dispose() {
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if (!disposed) {
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disposed = true;
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self._listeners.delete(listener);
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}
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}
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};
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if (disposables) disposables.push(result);
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return result;
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};
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}
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fire(event) {
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const dispatch = !this._deliveryQueue;
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if (!this._deliveryQueue) this._deliveryQueue = [];
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for (const listener of this._listeners) this._deliveryQueue.push({
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listener,
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event
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});
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if (!dispatch) return;
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for (let index = 0; index < this._deliveryQueue.length; index++) {
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const {
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listener,
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event
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} = this._deliveryQueue[index];
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listener.call(null, event);
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}
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this._deliveryQueue = undefined;
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}
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dispose() {
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this._listeners.clear();
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if (this._deliveryQueue) this._deliveryQueue = [];
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}
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}
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exports.EventEmitter = EventEmitter; |