import { TemplateRef, ElementRef, ChangeDetectorRef, EventEmitter, OnDestroy, AfterViewInit } from '@angular/core';
import { DropdownAlignment, DropdownWidth } from './dropdown.model';
import { Config } from '../../module.config';
import * as i0 from "@angular/core";
export declare class DropdownContentWrapper implements AfterViewInit, OnDestroy {
    private elementRef;
    private cd;
    private config;
    pageMargin: Config['dropDownPageMargin'];
    dropDownMaxHeight: Config['dropDownMaxHeight'];
    content: TemplateRef<any>;
    contentStyles: any;
    options: {
        alignment: DropdownAlignment;
        width: DropdownWidth;
        belowTrigger: boolean;
    };
    trigger: HTMLElement;
    id: string;
    clicked: EventEmitter<any>;
    escapeKeyPressed: EventEmitter<any>;
    private widthHasBeenAdjusted;
    constructor(elementRef: ElementRef, cd: ChangeDetectorRef, config: Config);
    ngAfterViewInit(): void;
    /**
     * Positions and resizes the dropdown contents container.
     */
    setPositionAndSize(initialOpening?: boolean): void;
    clickHandler(e: KeyboardEvent): void;
    ngOnDestroy(): void;
    /**
     * Calculates the position of the dropdown based on the height, width. alignment and screen boundaries.
     */
    calculatePositionStyles(): {
        top: string;
        left: string;
        maxHeight: string;
        flowUpwards: boolean;
    };
    onContentClick(): void;
    /**
     * Calculates the optimal alignment of the dropdown contents to avoid clipping over the edge of the window.
     */
    private calculateAlignment;
    /**
     * Given a true height of an element, returns a new height which is limited by both
     * the height of the window and the value of this.dropDownMaxHeight.
     */
    private limitHeight;
    private getDropdownContent;
    /**
     * Returns the width of the container according to the `width` input passed into the component.
     */
    private calculateContainerWidth;
    private calculateWidthContents;
    private calculateWidthTrigger;
    private calculateWidthExpand;
    private calculateWidthNumber;
    /**
     * Returns the offset of the element relative to the document.
     */
    private offset;
    private innerWidth;
    private innerHeight;
    static ɵfac: i0.ɵɵFactoryDeclaration<DropdownContentWrapper, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<DropdownContentWrapper, "gtx-dropdown-content-wrapper", never, {}, {}, never, never>;
}