import { Subject } from 'rxjs';
import { ChangeDetectorRef, DoCheck, ElementRef, EventEmitter } from '@angular/core';
import { ControlValueAccessor, FormGroupDirective, NgControl, NgForm, UntypedFormControl } from '@angular/forms';
import { ErrorStateMatcher } from '@angular/material/core';
import { MatFormFieldControl } from '@angular/material/form-field';
import { ISuggestValue, SuggestDirection, SuggestDisplayPriority } from './models';
import * as i0 from "@angular/core";
export declare abstract class UiSuggestMatFormFieldDirective implements DoCheck, MatFormFieldControl<ISuggestValue[]>, ControlValueAccessor {
    protected _elementRef: ElementRef;
    private _errorStateMatcher;
    private _parentForm;
    private _parentFormGroup;
    protected _cd: ChangeDetectorRef;
    ngControl: NgControl;
    abstract disabled: boolean;
    /**
     * Configure if the form control label should float.
     *
     */
    get shouldLabelFloat(): boolean;
    /**
     * Configure if the input should be marked as `required` inside the form field.
     *
     */
    get required(): boolean;
    /**
     * @ignore
     */
    set required(required: boolean);
    /**
     * Determine if the component is rendered inside a form control
     *
     */
    get isFormControl(): any;
    set isFormControl(value: any);
    /**
     * Configure the component placeholder.
     *
     */
    get placeholder(): string;
    set placeholder(placeholder: string);
    /**
     * Hides the combo box title.
     *
     */
    shouldHideTitle: boolean;
    /**
     * Sets aria-label on input or mat-chip-grid element.
     *
     */
    ariaLabel: string | null;
    /**
     * Set a custom size for the list items.
     *
     */
    customItemSize?: number;
    /**
     * Computes the component item height depending on the current render mode.
     *
     */
    get itemSize(): number;
    get baseSize(): 32 | 40;
    /**
     * Returns `true` if there are no items available.
     *
     */
    get empty(): boolean;
    /**
     * Determines if the render direction is `down`.
     *
     */
    get isDown(): boolean;
    /**
     * Handles the dropdown value binding.
     *
     */
    get value(): ISuggestValue[];
    /**
     * @ignore
     */
    set value(newValue: ISuggestValue[]);
    /**
     * @ignore
     */
    inputControl: UntypedFormControl;
    /**
     * Configure the component display priority.
     *
     */
    displayPriority: SuggestDisplayPriority;
    /**
     * @ignore
     */
    id: string;
    /**
     * @ignore
     */
    describedBy?: string;
    /**
     * Emits the selected item value an item is selected.
     *
     */
    selected: EventEmitter<ISuggestValue>;
    /**
     * Emits the deselected item value when an item is deselected.
     *
     */
    deselected: EventEmitter<ISuggestValue>;
    /**
     * @ignore
     */
    errorState: boolean;
    /**
     * @ignore
     */
    focused: boolean;
    /**
     * @ignore
     */
    stateChanges: Subject<void>;
    protected _direction: SuggestDirection;
    protected _items: ISuggestValue[];
    protected _value: ISuggestValue[];
    private _isFormControl;
    private _placeholder;
    private _required;
    /**
     * @ignore
     */
    constructor(_elementRef: ElementRef, _errorStateMatcher: ErrorStateMatcher, _parentForm: NgForm, _parentFormGroup: FormGroupDirective, _cd: ChangeDetectorRef, ngControl: NgControl);
    /**
     * @ignore
     */
    ngDoCheck(): void;
    /**
     * @ignore
     */
    abstract onContainerClick(event: MouseEvent): void;
    /**
     * Clears the search input value.
     */
    clear(): void;
    /**
     * @ignore
     */
    setDescribedByIds(ids: string[]): void;
    /**
     * @ignore
     */
    writeValue(value: ISuggestValue[]): void;
    /**
     * @ignore
     */
    registerChange: (_: ISuggestValue[]) => void;
    /**
     * @ignore
     */
    registerTouch: (ev?: Event) => void;
    /**
     * @ignore
     */
    registerOnChange(fn: (_: ISuggestValue[]) => any): void;
    /**
     * @ignore
     */
    registerOnTouched(fn: (ev?: Event) => void): void;
    protected _sortItems: (items: ISuggestValue[]) => ISuggestValue[];
    static ɵfac: i0.ɵɵFactoryDeclaration<UiSuggestMatFormFieldDirective, [null, null, null, null, null, { optional: true; self: true; }]>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<UiSuggestMatFormFieldDirective, never, never, { "required": "required"; "placeholder": "placeholder"; "shouldHideTitle": "shouldHideTitle"; "ariaLabel": "aria-label"; "customItemSize": "customItemSize"; "value": "value"; "displayPriority": "displayPriority"; }, { "selected": "selected"; "deselected": "deselected"; }, never, never, false, never>;
}