import { Overlay } from '@angular/cdk/overlay';
import { ChangeDetectorRef, ElementRef, EventEmitter, OnChanges, OnDestroy, OnInit, QueryList, SimpleChanges, TemplateRef, ViewContainerRef } from '@angular/core';
import { BooleanInput, VtsSafeAny } from '@ui-vts-kit/ng-vts/core/types';
import { VtsMentionTriggerDirective } from './mention-trigger';
import { VtsMentionService } from './mention.service';
import * as i0 from "@angular/core";
export interface MentionOnSearchTypes {
    value: string;
    prefix: string;
}
export interface Mention {
    startPos: number;
    endPos: number;
    mention: string;
}
export type MentionPlacement = 'top' | 'bottom';
export declare class VtsMentionComponent implements OnDestroy, OnInit, OnChanges {
    private ngDocument;
    private cdr;
    private overlay;
    private viewContainerRef;
    private vtsMentionService;
    static ngAcceptInputType_vtsLoading: BooleanInput;
    vtsValueWith: (value: VtsSafeAny) => string;
    vtsPrefix: string | string[];
    vtsLoading: boolean;
    vtsNoResult: string;
    vtsPlacement: MentionPlacement;
    vtsSuggestions: VtsSafeAny[];
    readonly vtsOnSelect: EventEmitter<VtsSafeAny>;
    readonly vtsOnSearchChange: EventEmitter<MentionOnSearchTypes>;
    trigger: VtsMentionTriggerDirective;
    suggestionsTemp?: TemplateRef<void>;
    items: QueryList<ElementRef>;
    set suggestionChild(value: TemplateRef<{
        $implicit: VtsSafeAny;
    }>);
    isOpen: boolean;
    filteredSuggestions: string[];
    suggestionTemplate: TemplateRef<{
        $implicit: VtsSafeAny;
    }> | null;
    activeIndex: number;
    private previousValue;
    private cursorMention;
    private cursorMentionStart?;
    private cursorMentionEnd?;
    private overlayRef;
    private portal?;
    private positionStrategy;
    private overlayOutsideClickSubscription;
    private get triggerNativeElement();
    private get focusItemElement();
    constructor(ngDocument: VtsSafeAny, cdr: ChangeDetectorRef, overlay: Overlay, viewContainerRef: ViewContainerRef, vtsMentionService: VtsMentionService);
    ngOnInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    ngOnDestroy(): void;
    closeDropdown(): void;
    openDropdown(): void;
    getMentions(): string[];
    selectSuggestion(suggestion: string | {}): void;
    private handleInput;
    private handleKeydown;
    private handleClick;
    private bindTriggerEvents;
    private suggestionsFilter;
    private resetDropdown;
    private setNextItemActive;
    private setPreviousItemActive;
    private scrollToFocusItem;
    private canOpen;
    private resetCursorMention;
    private updatePositions;
    private subscribeOverlayOutsideClick;
    private attachOverlay;
    private getOverlayConfig;
    private getOverlayPosition;
    static ɵfac: i0.ɵɵFactoryDeclaration<VtsMentionComponent, [{ optional: true; }, null, null, null, null]>;
    static ɵcmp: i0.ɵɵComponentDeclaration<VtsMentionComponent, "vts-mention", ["vtsMention"], { "vtsValueWith": { "alias": "vtsValueWith"; "required": false; }; "vtsPrefix": { "alias": "vtsPrefix"; "required": false; }; "vtsLoading": { "alias": "vtsLoading"; "required": false; }; "vtsNoResult": { "alias": "vtsNoResult"; "required": false; }; "vtsPlacement": { "alias": "vtsPlacement"; "required": false; }; "vtsSuggestions": { "alias": "vtsSuggestions"; "required": false; }; }, { "vtsOnSelect": "vtsOnSelect"; "vtsOnSearchChange": "vtsOnSearchChange"; }, ["suggestionChild"], ["*"], false, never>;
}