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{ assign } from './object';\n\n/* eslint-disable @typescript-eslint/no-explicit-any */\n\n/**\n * @internal\n */\nexport interface IEventRecord {\n target: any;\n eventName: string;\n parent: any;\n callback: (args?: any) => void;\n elementCallback?: (...args: any[]) => void;\n objectCallback?: (args?: any) => void;\n options?: boolean | AddEventListenerOptions;\n}\n\n/**\n * @internal\n */\nexport interface IEventRecordsByName {\n [eventName: string]: IEventRecordList;\n}\n\n/**\n * @internal\n */\nexport interface IEventRecordList {\n [id: string]: IEventRecord[] | number;\n count: number;\n}\n\n/**\n * @internal\n */\nexport interface IDeclaredEventsByName {\n [eventName: string]: boolean;\n}\n\n/** An instance of EventGroup allows anything with a handle to it to trigger events on it.\n * If the target is an HTMLElement, the event will be attached to the element and can be\n * triggered as usual (like clicking for onClick).\n * The event can be triggered by calling EventGroup.raise() here. If the target is an\n * HTMLElement, the event gets raised and is handled by the browser. Otherwise, it gets\n * handled here in EventGroup, and the handler is called in the context of the parent\n * (which is passed in in the constructor).\n *\n * @public\n * {@docCategory EventGroup}\n */\nexport class EventGroup {\n private static _uniqueId: number = 0;\n private _parent: any;\n private _eventRecords: IEventRecord[];\n private _id: number = EventGroup._uniqueId++;\n private _isDisposed: boolean;\n\n /** For IE8, bubbleEvent is ignored here and must be dealt with by the handler.\n * Events raised here by default have bubbling set to false and cancelable set to true.\n * This applies also to built-in events being raised manually here on HTMLElements,\n * which may lead to unexpected behavior if it differs from the defaults.\n *\n */\n public static raise(target: any, eventName: string, eventArgs?: any, bubbleEvent?: boolean): boolean | undefined {\n let retVal;\n\n if (EventGroup._isElement(target)) {\n if (typeof document !== 'undefined' && document.createEvent) {\n let ev = document.createEvent('HTMLEvents');\n\n ev.initEvent(eventName, bubbleEvent || false, true);\n\n assign(ev, eventArgs);\n\n retVal = target.dispatchEvent(ev);\n } else if (typeof document !== 'undefined' && (document as any).createEventObject) {\n // IE8\n let evObj = (document as any).createEventObject(eventArgs);\n // cannot set cancelBubble on evObj, fireEvent will overwrite it\n target.fireEvent('on' + eventName, evObj);\n }\n } else {\n while (target && retVal !== false) {\n let events = <IEventRecordsByName>target.__events__;\n let eventRecords = events ? 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