import { EventEmitter, ElementRef, ChangeDetectorRef, DestroyRef, AfterViewInit } from '@angular/core';
import { NgControl } from '@angular/forms';
import { IBaseEventArgs } from '../core/utils';
import { Subject } from 'rxjs';
import { IgxTheme, ThemeToken } from '../services/theme/theme.token';
import * as i0 from "@angular/core";
export declare const LabelPosition: {
    BEFORE: "before";
    AFTER: "after";
};
export type LabelPosition = typeof LabelPosition[keyof typeof LabelPosition];
export interface IChangeCheckboxEventArgs extends IBaseEventArgs {
    checked: boolean;
    value?: any;
}
export declare class CheckboxBaseDirective implements AfterViewInit {
    protected cdr: ChangeDetectorRef;
    protected themeToken: ThemeToken;
    ngControl: NgControl;
    /**
     * An event that is emitted after the checkbox state is changed.
     * Provides references to the `IgxCheckboxComponent` and the `checked` property as event arguments.
     */
    readonly change: EventEmitter<IChangeCheckboxEventArgs>;
    /**
     * @hidden
     * @internal
     */
    destroy$: Subject<boolean>;
    /**
     * Returns reference to the native checkbox element.
     *
     * @example
     * ```typescript
     * let checkboxElement =  this.component.checkboxElement;
     * ```
     */
    nativeInput: ElementRef;
    /**
     * Returns reference to the native label element.
     * ```typescript
     *
     * @example
     * let labelElement =  this.component.nativeLabel;
     * ```
     */
    nativeLabel: ElementRef;
    cssClass: string;
    disabled: boolean;
    readonly: boolean;
    indeterminate: boolean;
    focused: boolean;
    invalid: boolean;
    get checked(): boolean;
    set checked(value: boolean);
    /**
     * Returns reference to the `nativeElement` of the igx-checkbox/igx-switch.
     *
     * @example
     * ```typescript
     * let nativeElement = this.component.nativeElement;
     * ```
     */
    get nativeElement(): any;
    /**
     * Returns reference to the label placeholder element.
     * ```typescript
     *
     * @example
     * let labelPlaceholder =  this.component.placeholderLabel;
     * ```
     */
    placeholderLabel: ElementRef;
    /**
     * Sets/gets the `id` of the checkbox component.
     * If not set, the `id` of the first checkbox component will be `"igx-checkbox-0"`.
     *
     * @example
     * ```html
     * <igx-checkbox id="my-first-checkbox"></igx-checkbox>
     * ```
     * ```typescript
     * let checkboxId =  this.checkbox.id;
     * ```
     */
    id: string;
    /**
     * Sets/gets the id of the `label` element.
     * If not set, the id of the `label` in the first checkbox component will be `"igx-checkbox-0-label"`.
     *
     * @example
     * ```html
     * <igx-checkbox labelId="Label1"></igx-checkbox>
     * ```
     * ```typescript
     * let labelId =  this.component.labelId;
     * ```
     */
    labelId: string;
    /**
     * Sets/gets the `value` attribute.
     *
     * @example
     * ```html
     * <igx-checkbox [value]="'CheckboxValue'"></igx-checkbox>
     * ```
     * ```typescript
     * let value =  this.checkbox.value;
     * ```
     */
    value: any;
    /**
     * Sets/gets the `name` attribute.
     *
     * @example
     * ```html
     * <igx-checkbox name="Checkbox1"></igx-checkbox>
     * ```
     * ```typescript
     * let name =  this.checkbox.name;
     * ```
     */
    name: string;
    /**
     * Sets/gets the value of the `tabindex` attribute.
     *
     * @example
     * ```html
     * <igx-checkbox [tabindex]="1"></igx-checkbox>
     * ```
     * ```typescript
     * let tabIndex =  this.checkbox.tabindex;
     * ```
     */
    tabindex: number;
    /**
     *  Sets/gets the position of the `label`.
     *  If not set, the `labelPosition` will have value `"after"`.
     *
     * @example
     * ```html
     * <igx-checkbox labelPosition="before"></igx-checkbox>
     * ```
     * ```typescript
     * let labelPosition =  this.checkbox.labelPosition;
     * ```
     */
    labelPosition: LabelPosition | string;
    /**
     * Enables/Disables the ripple effect.
     * If not set, `disableRipple` will have value `false`.
     *
     * @example
     * ```html
     * <igx-checkbox [disableRipple]="true"></igx-checkbox>
     * ```
     * ```typescript
     * let isRippleDisabled = this.checkbox.desableRipple;
     * ```
     */
    disableRipple: boolean;
    /**
     * Sets/gets the `aria-labelledby` attribute.
     * If not set, the `aria-labelledby` will be equal to the value of `labelId` attribute.
     *
     * @example
     * ```html
     * <igx-checkbox aria-labelledby="Checkbox1"></igx-checkbox>
     * ```
     * ```typescript
     * let ariaLabelledBy = this.checkbox.ariaLabelledBy;
     * ```
     */
    ariaLabelledBy: string;
    /**
     * Sets/gets the value of the `aria-label` attribute.
     *
     * @example
     * ```html
     * <igx-checkbox aria-label="Checkbox1"></igx-checkbox>
     * ```
     * ```typescript
     * let ariaLabel = this.checkbox.ariaLabel;
     * ```
     */
    ariaLabel: string | null;
    constructor(cdr: ChangeDetectorRef, themeToken: ThemeToken, ngControl: NgControl);
    /**
     * Sets/gets whether the checkbox is required.
     * If not set, `required` will have value `false`.
     *
     * @example
     * ```html
     * <igx-checkbox required></igx-checkbox>
     * ```
     * ```typescript
     * let isRequired = this.checkbox.required;
     * ```
     */
    get required(): boolean;
    set required(value: boolean);
    /**
     * @hidden
     * @internal
     */
    ngAfterViewInit(): void;
    /**
     * @hidden
     * @internal
     */
    inputId: string;
    /**
     * @hidden
     */
    protected _onChangeCallback: (_: any) => void;
    /**
     * @hidden
     */
    private _onTouchedCallback;
    /**
     * @hidden
     * @internal
     */
    protected _checked: boolean;
    /**
     * @hidden
     * @internal
     */
    protected theme: IgxTheme;
    /**
     * @hidden
     * @internal
     */
    _required: boolean;
    private elRef;
    protected destroyRef: DestroyRef;
    private setComponentTheme;
    /** @hidden @internal */
    onKeyUp(event: KeyboardEvent): void;
    /** @hidden @internal */
    _onCheckboxClick(event: PointerEvent | MouseEvent): void;
    /**
     * @hidden
     * @internal
     */
    get ariaChecked(): boolean | "mixed";
    /** @hidden @internal */
    _onCheckboxChange(event: Event): void;
    /** @hidden @internal */
    onBlur(): void;
    /** @hidden @internal */
    writeValue(value: boolean): void;
    /** @hidden @internal */
    get labelClass(): string;
    /** @hidden @internal */
    registerOnChange(fn: (_: any) => void): void;
    /** @hidden @internal */
    registerOnTouched(fn: () => void): void;
    /** @hidden @internal */
    setDisabledState(isDisabled: boolean): void;
    /** @hidden @internal */
    getEditElement(): any;
    /**
     * @hidden
     * @internal
     */
    protected updateValidityState(): void;
    /**
     * A function to assign a native validity property of a checkbox.
     * This should be used when there's no ngControl
     *
     * @hidden
     * @internal
     */
    private checkNativeValidity;
    static ɵfac: i0.ɵɵFactoryDeclaration<CheckboxBaseDirective, [null, null, { optional: true; self: true; }]>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<CheckboxBaseDirective, never, never, { "checked": { "alias": "checked"; "required": false; }; "id": { "alias": "id"; "required": false; }; "labelId": { "alias": "labelId"; "required": false; }; "value": { "alias": "value"; "required": false; }; "name": { "alias": "name"; "required": false; }; "tabindex": { "alias": "tabindex"; "required": false; }; "labelPosition": { "alias": "labelPosition"; "required": false; }; "disableRipple": { "alias": "disableRipple"; "required": false; }; "ariaLabelledBy": { "alias": "aria-labelledby"; "required": false; }; "ariaLabel": { "alias": "aria-label"; "required": false; }; "required": { "alias": "required"; "required": false; }; }, { "change": "change"; }, never, never, true, never>;
    static ngAcceptInputType_checked: unknown;
    static ngAcceptInputType_disableRipple: unknown;
    static ngAcceptInputType_required: unknown;
}