import { EventEmitter, OnInit } from '@angular/core';
import { FormControl } from '@angular/forms';
import { MatAutocompleteTrigger } from '@angular/material/autocomplete';
import { IOption } from '../../../models/Models';
import { ScrollService } from '../../../services/scroll/scroll.service';
export declare class AutocompleteDropdownComponent implements OnInit {
    private scrollService;
    trigger: MatAutocompleteTrigger;
    /**
     * Text for dropdown placeholder
     * Default value: option
     * @internal
     */
    element: string;
    /**
     * Options to display as radio buttons
     * Use the IOption interface: { value: string; text: string; selected?: boolean; }
     * @internal
     */
    options: IOption[];
    private originalOptions;
    /**
     * The default selected value of the dropdown
     */
    set default(option: IOption);
    /**
     * Emit the value selected by the user
     * @internal
     */
    elementSelected: EventEmitter<IOption>;
    /**
     * Emits when the dropdown menu is opened
     */
    opened: EventEmitter<any>;
    /**
     * Emits when the dropdown menu is closed
     */
    closed: EventEmitter<any>;
    formControl: FormControl;
    selectedValue: IOption;
    constructor(scrollService: ScrollService);
    /**
     * Callback to apply custom filtering on the option list.
     * If provided it must set the options input with the filter result.
     * By default if filters all options where the display text starts with the input, case insensitive.
     * @param input Filtering value provided by the user
     */
    filter: (input: string) => void;
    ngOnInit(): void;
    display(option: IOption): string;
    onOpened(): void;
    onClosed(): void;
    onSelectionChange(): void;
}