38 lines
1.2 KiB
TypeScript
38 lines
1.2 KiB
TypeScript
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import { WorkboxEvent, WorkboxEventMap } from './WorkboxEvent.js';
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export type ListenerCallback = (event: WorkboxEvent<any>) => any;
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/**
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* A minimal `EventTarget` shim.
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* This is necessary because not all browsers support constructable
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* `EventTarget`, so using a real `EventTarget` will error.
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* @private
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*/
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export declare class WorkboxEventTarget {
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private readonly _eventListenerRegistry;
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/**
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* @param {string} type
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* @param {Function} listener
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* @private
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*/
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addEventListener<K extends keyof WorkboxEventMap>(type: K, listener: (event: WorkboxEventMap[K]) => any): void;
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/**
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* @param {string} type
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* @param {Function} listener
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* @private
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*/
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removeEventListener<K extends keyof WorkboxEventMap>(type: K, listener: (event: WorkboxEventMap[K]) => any): void;
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/**
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* @param {Object} event
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* @private
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*/
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dispatchEvent(event: WorkboxEvent<any>): void;
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/**
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* Returns a Set of listeners associated with the passed event type.
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* If no handlers have been registered, an empty Set is returned.
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*
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* @param {string} type The event type.
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* @return {Set<ListenerCallback>} An array of handler functions.
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* @private
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*/
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private _getEventListenersByType;
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}
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