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44 lines
1.3 KiB
44 lines
1.3 KiB
2 years ago
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"use strict";
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function _classPrivateFieldLooseBase(receiver, privateKey) { if (!Object.prototype.hasOwnProperty.call(receiver, privateKey)) { throw new TypeError("attempted to use private field on non-instance"); } return receiver; }
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var id = 0;
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function _classPrivateFieldLooseKey(name) { return "__private_" + id++ + "_" + name; }
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var _emitter = /*#__PURE__*/_classPrivateFieldLooseKey("emitter");
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var _events = /*#__PURE__*/_classPrivateFieldLooseKey("events");
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class EventTracker {
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constructor(emitter) {
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Object.defineProperty(this, _emitter, {
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writable: true,
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value: void 0
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});
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Object.defineProperty(this, _events, {
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writable: true,
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value: []
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});
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_classPrivateFieldLooseBase(this, _emitter)[_emitter] = emitter;
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}
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on(event, fn) {
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_classPrivateFieldLooseBase(this, _events)[_events].push([event, fn]);
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return _classPrivateFieldLooseBase(this, _emitter)[_emitter].on(event, fn);
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}
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remove() {
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for (const [event, fn] of _classPrivateFieldLooseBase(this, _events)[_events].splice(0)) {
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_classPrivateFieldLooseBase(this, _emitter)[_emitter].off(event, fn);
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}
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}
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}
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/**
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* Create a wrapper around an event emitter with a `remove` method to remove
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* all events that were added using the wrapped emitter.
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*/
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module.exports = EventTracker;
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