import { ElementRef, EventEmitter, OnDestroy, OnInit } from '@angular/core';
import { AbstractControl, ControlValueAccessor, ValidationErrors, Validator } from '@angular/forms';
import { ThemePalette } from '@angular/material/core';
import { MatFormField } from '@angular/material/form-field';
import { Color } from '../../models';
import { ColorAdapter, MatColorFormats } from '../../services';
import { NgxMatColorPickerComponent } from './color-picker.component';
import * as i0 from "@angular/core";
export declare class NgxMatColorPickerInputEvent {
    /** Reference to the colorpicker input component that emitted the event. */
    target: NgxMatColorPickerInput;
    /** Reference to the native input element associated with the colorpicker input. */
    targetElement: HTMLElement;
    /** The new value for the target colorpicker input. */
    value: Color | null;
    constructor(
    /** Reference to the colorpicker input component that emitted the event. */
    target: NgxMatColorPickerInput, 
    /** Reference to the native input element associated with the colorpicker input. */
    targetElement: HTMLElement);
}
export declare const MAT_COLORPICKER_VALUE_ACCESSOR: any;
export declare const MAT_COLORPICKER_VALIDATORS: any;
export declare class NgxMatColorPickerInput implements ControlValueAccessor, OnInit, OnDestroy, Validator {
    private _elementRef;
    private _formField;
    private _colorFormats;
    private _adapter;
    set ngxMatColorPicker(value: NgxMatColorPickerComponent);
    _picker: NgxMatColorPickerComponent;
    /** Whether the colorpicker-input is disabled. */
    get disabled(): boolean;
    set disabled(value: boolean);
    private _disabled;
    /** The value of the input. */
    get value(): Color | null;
    set value(value: Color | null);
    private _value;
    /** Emits when a `change` event is fired on this `<input>`. */
    readonly colorChange: import("@angular/core").OutputEmitterRef<NgxMatColorPickerInputEvent>;
    /** Emits when an `input` event is fired on this `<input>`. */
    readonly colorInput: import("@angular/core").OutputEmitterRef<NgxMatColorPickerInputEvent>;
    /** Emits when the disabled state has changed */
    _disabledChange: EventEmitter<boolean>;
    /** Emits when the value changes (either due to user input or programmatic change). */
    _valueChange: EventEmitter<Color>;
    _onTouched: () => void;
    private _cvaOnChange;
    private _validatorOnChange;
    private _pickerSubscription;
    /** The combined form control validator for this input. */
    private _validator;
    /** Whether the last value set on the input was valid. */
    private _lastValueValid;
    constructor(_elementRef: ElementRef<HTMLInputElement>, _formField: MatFormField, _colorFormats: MatColorFormats, _adapter: ColorAdapter);
    /** Returns the palette used by the input's form field, if any. */
    getThemePalette(): ThemePalette;
    registerOnValidatorChange(fn: () => void): void;
    validate(c: AbstractControl): ValidationErrors | null;
    /**
     * @deprecated
     * @breaking-change 8.0.0 Use `getConnectedOverlayOrigin` instead
     */
    getPopupConnectionElementRef(): ElementRef;
    /**
     * Gets the element that the colorpicker popup should be connected to.
     * @return The element to connect the popup to.
     */
    getConnectedOverlayOrigin(): ElementRef;
    ngOnInit(): void;
    ngOnDestroy(): void;
    writeValue(value: Color): void;
    registerOnChange(fn: (value: any) => void): void;
    registerOnTouched(fn: () => void): void;
    setDisabledState(isDisabled: boolean): void;
    _onChange(): void;
    _onKeydown(event: KeyboardEvent): void;
    /** Handles blur events on the input. */
    _onBlur(): void;
    /** Formats a value and sets it on the input element. */
    private _formatValue;
    _onInput(value: string): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<NgxMatColorPickerInput, [null, { optional: true; }, { optional: true; }, null]>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<NgxMatColorPickerInput, "input[ngxMatColorPicker]", ["ngxMatColorPickerInput"], { "ngxMatColorPicker": { "alias": "ngxMatColorPicker"; "required": false; }; "disabled": { "alias": "disabled"; "required": false; }; "value": { "alias": "value"; "required": false; }; }, { "colorChange": "colorChange"; "colorInput": "colorInput"; }, never, never, true, never>;
}