export type WaitOnEventOrTimeoutParameters = {
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/**
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* - The event target, can for example be:
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* `window`, `document`, a DOM element, or an {EventBus} instance.
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*/
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target: Object;
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/**
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* - The name of the event.
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*/
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name: string;
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/**
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* - The delay, in milliseconds, after which the
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* timeout occurs (if the event wasn't already dispatched).
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*/
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delay: number;
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};
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/**
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* Simple event bus for an application. Listeners are attached using the `on`
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* and `off` methods. To raise an event, the `dispatch` method shall be used.
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*/
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export class EventBus {
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/**
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* @param {string} eventName
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* @param {function} listener
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* @param {Object} [options]
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*/
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on(eventName: string, listener: Function, options?: Object): void;
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/**
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* @param {string} eventName
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* @param {function} listener
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* @param {Object} [options]
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*/
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off(eventName: string, listener: Function, options?: Object): void;
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/**
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* @param {string} eventName
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* @param {Object} data
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*/
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dispatch(eventName: string, data: Object): void;
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/**
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* @ignore
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*/
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_on(eventName: any, listener: any, options?: null): void;
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/**
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* @ignore
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*/
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_off(eventName: any, listener: any, options?: null): void;
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#private;
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}
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/**
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* NOTE: Only used in the Firefox build-in pdf viewer.
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*/
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export class FirefoxEventBus extends EventBus {
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constructor(globalEventNames: any, externalServices: any, isInAutomation: any);
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dispatch(eventName: any, data: any): void;
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#private;
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}
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/**
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* @typedef {Object} WaitOnEventOrTimeoutParameters
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* @property {Object} target - The event target, can for example be:
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* `window`, `document`, a DOM element, or an {EventBus} instance.
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* @property {string} name - The name of the event.
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* @property {number} delay - The delay, in milliseconds, after which the
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* timeout occurs (if the event wasn't already dispatched).
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*/
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/**
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* Allows waiting for an event or a timeout, whichever occurs first.
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* Can be used to ensure that an action always occurs, even when an event
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* arrives late or not at all.
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*
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* @param {WaitOnEventOrTimeoutParameters}
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* @returns {Promise} A promise that is resolved with a {WaitOnType} value.
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*/
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export function waitOnEventOrTimeout({ target, name, delay }: WaitOnEventOrTimeoutParameters): Promise<any>;
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export namespace WaitOnType {
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let EVENT: string;
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let TIMEOUT: string;
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}
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