import { OnInit, QueryList, AfterContentInit, ElementRef, Renderer2 } from '@angular/core';
import { PgDropDownItemDirective } from './pg-drop-down-item.directive';
import { PgFieldComponent } from '../pg-field/pg-field.component';
import { NgControl, FormGroupDirective } from '@angular/forms';
import { AnimationService } from '../core/ui/animation.service';
import * as i0 from "@angular/core";
export interface DropDownItem {
    displayText: string;
    searchableTerms: string[];
    value: any;
    id: string;
}
export declare class PgDropDownComponent implements OnInit, AfterContentInit {
    pgField: PgFieldComponent;
    private _animate;
    private _elementRef;
    private _renderer;
    formGroup: FormGroupDirective;
    _classPgDropDown: boolean;
    _role: string;
    _itemChildren: QueryList<PgDropDownItemDirective>;
    _dropDownItemViewChildren: QueryList<ElementRef>;
    /** Manages keyboard events for options in the panel. */
    _isFocusedSelect(event: KeyboardEvent): void;
    _expanded: boolean;
    focusedIndex: number;
    currentlyFocusedItem: ElementRef;
    _globalPromise: Promise<void>;
    ngControl: NgControl;
    dropDownItems: DropDownItem[];
    displayElement: HTMLInputElement;
    get controlValue(): any;
    protected _valueSelected: boolean;
    private readonly maxHeight;
    constructor(pgField: PgFieldComponent, _animate: AnimationService, _elementRef: ElementRef, _renderer: Renderer2, formGroup: FormGroupDirective);
    ngOnInit(): void;
    ngAfterContentInit(): void;
    formatDisplayText(display: any): any;
    handleItemClicked(item: DropDownItem): void;
    activateNextItem(): void;
    activatePreviousItem(): void;
    private _setValue;
    private _isMatch;
    private _isExactMatch;
    private _resetActiveItemsInDropDown;
    private _getDropDownItems;
    _reconcileDropDownDisplayState(): Promise<void>;
    private _selectValueFromRemaining;
    private _updateDropDownItems;
    private _expandDropdown;
    private _collapseDropdown;
    static ɵfac: i0.ɵɵFactoryDef<PgDropDownComponent, [null, null, null, null, { optional: true; }]>;
    static ɵcmp: i0.ɵɵComponentDefWithMeta<PgDropDownComponent, "pg-drop-down, grit-drop-down", ["gritDropDown"], { "displayElement": "displayElement"; }, {}, ["_itemChildren"], never>;
}