import { ChangeDetectorRef, ElementRef, EventEmitter, OnDestroy, Renderer2, ViewContainerRef } from "@angular/core";
import Popper from 'popper.js';
import { PopperContentOptions } from './popper-model';
export declare class PopperContent implements OnDestroy {
    elemRef: ElementRef;
    private renderer;
    private viewRef;
    private CDR;
    popperOptions: PopperContentOptions;
    referenceObject: HTMLElement;
    isMouseOver: boolean;
    onHidden: EventEmitter<{}>;
    text: string;
    popperInstance: Popper;
    displayType: string;
    opacity: number;
    ariaHidden: string;
    arrowColor: string | null;
    onUpdate: Function;
    state: boolean;
    private globalResize;
    popperViewRef: ElementRef;
    onMouseOver(): void;
    showOnLeave(): void;
    onDocumentResize(): void;
    constructor(elemRef: ElementRef, renderer: Renderer2, viewRef: ViewContainerRef, CDR: ChangeDetectorRef);
    ngOnDestroy(): void;
    clean(): void;
    show(): void;
    private determineArrowColor;
    update(): void;
    scheduleUpdate(): void;
    hide(): void;
    toggleVisibility(state: boolean): void;
    extractAppliedClassListExpr(classList?: string): Object | null;
    private clearGlobalResize;
}