import { Overlay } from '@angular/cdk/overlay';
import { CdkPortal } from '@angular/cdk/portal';
import { AfterViewInit, ChangeDetectorRef, ElementRef, EventEmitter, OnInit, QueryList } from '@angular/core';
import { AbstractControl, ControlValueAccessor, ValidationErrors, Validator } from '@angular/forms';
import { CustomSelectOptionComponent } from './custom-select-option.component';
import { DomSanitizer, SafeHtml } from '@angular/platform-browser';
import { CustomSelectService } from './custom-select.service';
import * as i0 from "@angular/core";
export interface CustomSelectEvent {
    source: CustomDropdownScrollComponent;
    selected: any;
}
export declare class CustomDropdownScrollComponent implements OnInit, ControlValueAccessor, Validator, AfterViewInit {
    private cd;
    private domSanitizer;
    private overlay;
    private selectService;
    inputId: string;
    label: string;
    bindLabel: string;
    bindValue: string;
    placeholder: string;
    selectedIndex: number;
    required: boolean;
    disabled: boolean;
    error: boolean;
    multiple: boolean;
    search: boolean;
    ariaLabel: string;
    ariaLabelledby: string;
    readonly change: EventEmitter<CustomSelectEvent>;
    items: any;
    eventScroll: EventEmitter<any>;
    select: ElementRef;
    contentTemplate: CdkPortal;
    dropdownContainers: any;
    InpudropdownContainer: any;
    options: QueryList<CustomSelectOptionComponent>;
    itemsPerLoad: number;
    displayText: SafeHtml;
    displayX: boolean;
    private selectedOption;
    private showPlaceholder;
    private overlayRef;
    filteredOptions: any;
    displayedOptions: any;
    itemsPerPage: number;
    currentPage: number;
    showing?: boolean;
    constructor(cd: ChangeDetectorRef, domSanitizer: DomSanitizer, overlay: Overlay, selectService: CustomSelectService);
    onChangeFn: any;
    onTouchedFn: any;
    registerOnChange(fn: any): void;
    registerOnTouched(fn: any): void;
    validate(control: AbstractControl): ValidationErrors | null;
    ngOnInit(): void;
    filterOptions(event: Event, bindLabel: any): void;
    loadMore(): void;
    removeOldItems(): void;
    hasMoreItems(): boolean;
    ngAfterViewInit(): void;
    writeValue(obj: any): void;
    onTouched(): void;
    private onChange;
    generateData(id: number): {
        name: string;
    }[];
    mainSelectClasses(): {
        [key: string]: any;
    };
    onDropMenuIconClick(event: UIEvent): void;
    selectOption(option: CustomSelectOptionComponent): void;
    private updateDisplayText;
    onKeyDown(event: KeyboardEvent): void;
    showDropdown(): void;
    private hide;
    private syncWidth;
    private getOverlayConfig;
    onScroll(index: number): void;
    closeDropdown(event: Event): void;
    selectedIndexfunc(item: any, index: any): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<CustomDropdownScrollComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<CustomDropdownScrollComponent, "dropdown-scroll", never, { "inputId": { "alias": "id"; "required": false; }; "label": { "alias": "label"; "required": false; }; "bindLabel": { "alias": "bindLabel"; "required": false; }; "bindValue": { "alias": "bindValue"; "required": false; }; "placeholder": { "alias": "placeholder"; "required": false; }; "selectedIndex": { "alias": "selectedIndex"; "required": false; }; "required": { "alias": "required"; "required": false; }; "disabled": { "alias": "disabled"; "required": false; }; "error": { "alias": "error"; "required": false; }; "multiple": { "alias": "multiple"; "required": false; }; "search": { "alias": "search"; "required": false; }; "ariaLabel": { "alias": "aria-label"; "required": false; }; "ariaLabelledby": { "alias": "aria-labelledby"; "required": false; }; "items": { "alias": "items"; "required": false; }; }, { "change": "change"; "eventScroll": "eventScroll"; }, ["options"], never, true, never>;
}