import { OutputEmitterRef } from '@angular/core';
import { BaseDirective } from '../directives';
import { SizeOption } from '../types/size-options.type';
import * as i0 from "@angular/core";
/**
 * The mutable properties of the checkbox.
 */
export interface CheckboxMutableProps {
    /**
     * Whether the checkbox is checked. default is false
     */
    readonly checked: boolean;
    /**
     * Whether the checkbox is indeterminate. default is false
     */
    readonly indeterminate?: boolean;
    /**
     * The checkbox's children if any.
     */
    readonly children?: Checkbox[];
}
export interface CheckboxActions {
    /**
     * Toggles the checkbox from origin.
     * @param options The options for the toggle.
     * @returns A promise that resolves with the changes.
     */
    toggle(options?: CheckboxToggleOptions): void;
}
export interface CheckboxEvents {
    /**
     * Emits when the checkbox state changes.
     */
    readonly changes: OutputEmitterRef<CheckboxMutableProps>;
    /**
     * Emits when the checkbox checked state changes.
     */
    readonly checkedChange: OutputEmitterRef<boolean>;
    /**
     * Emits when the checkbox indeterminate state changes.
     */
    readonly indeterminateChange: OutputEmitterRef<boolean>;
}
type EventOrigin = 'self' | 'parent' | 'child';
export interface CheckboxToggleOptions {
    /**
     * The origin of the event. Default is `'self'`.
     */
    origin?: EventOrigin;
    /**
     * The event that triggered the toggle.
     */
    event?: Event;
}
export interface Checkbox extends CheckboxActions, CheckboxEvents, CheckboxMutableProps {
    readonly id: string;
    readonly inputRef: HTMLInputElement;
}
/**
 * The icon to display when the checkbox is indeterminate or checked.
 * Default is `{ indeterminate: 'minus', checked: 'check' }`
 */
export interface CheckboxIcon {
    /**
     * The name of the icon to display when the checkbox is indeterminate.
     * Default is `'minus'`. The icon must be configured. Otherwise, it will not display.
     */
    indeterminate: string;
    /**
     * The name of the icon to display when the checkbox is checked.
     * Default is `'check'`. The icon must be configured. Otherwise, it will not display.
     */
    checked: string;
    /**
     * The size of the icon. Default is `'sm'`.
     */
    size: SizeOption;
}
export declare const CHECKBOX_CONFIG: import("@angular/core").InjectionToken<string>;
export declare const CHECKBOX_ICON: import("@angular/core").InjectionToken<CheckboxIcon>;
export declare abstract class CheckboxBase extends BaseDirective {
    protected parent: CheckboxBase | null;
    static ɵfac: i0.ɵɵFactoryDeclaration<CheckboxBase, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<CheckboxBase, never, never, {}, {}, never, never, true, never>;
}
/**
 * Checks if the component is a Checkbox.
 * If so, you can safely access the Checkbox members inside this block scope.
 */
export declare function isCheckbox(component: unknown): component is Checkbox;
export {};