63 lines
1.9 KiB
JavaScript
63 lines
1.9 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.StripeEventEmitter = void 0;
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/**
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* @private
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* (For internal use in stripe-node.)
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* Minimal EventEmitter for runtimes without Event or EventTarget.
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*/
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class StripeEventEmitter {
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constructor() {
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this._listeners = new Map();
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}
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on(eventName, listener) {
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this._getListeners(eventName).push({ listener, once: false });
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}
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once(eventName, listener) {
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this._getListeners(eventName).push({ listener, once: true });
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}
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removeListener(eventName, listener) {
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const listeners = this._listeners.get(eventName);
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if (!listeners) {
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return;
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}
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const index = listeners.findIndex((entry) => entry.listener === listener);
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if (index === -1) {
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return;
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}
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this._removeAt(eventName, index);
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}
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emit(eventName, data) {
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const listeners = this._listeners.get(eventName);
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if (!listeners || listeners.length === 0) {
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return false;
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}
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for (const entry of [...listeners]) {
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if (entry.once) {
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this._removeAt(eventName, listeners.indexOf(entry));
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}
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entry.listener(data);
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}
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return true;
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}
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_getListeners(eventName) {
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let listeners = this._listeners.get(eventName);
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if (!listeners) {
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listeners = [];
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this._listeners.set(eventName, listeners);
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}
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return listeners;
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}
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_removeAt(eventName, index) {
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const listeners = this._listeners.get(eventName);
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if (!listeners || index === -1) {
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return;
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}
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listeners.splice(index, 1);
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if (listeners.length === 0) {
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this._listeners.delete(eventName);
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}
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}
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}
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exports.StripeEventEmitter = StripeEventEmitter;
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//# sourceMappingURL=StripeEventEmitter.js.map
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