import { OnChanges, Renderer2, SimpleChanges, ViewContainerRef } from '@angular/core';
import { BooleanInput } from '@angular/cdk/coercion';
import { ThemePalette } from '@angular/material/core';
import { MatButton } from '@angular/material/button';
import * as i0 from "@angular/core";
export declare class MatButtonLoadingDirective implements OnChanges {
    private matButton;
    private viewContainerRef;
    private renderer;
    private spinner;
    get loading(): boolean;
    set loading(value: boolean);
    private _loading;
    get disabled(): boolean;
    set disabled(value: boolean);
    private _disabled;
    color: ThemePalette;
    constructor(matButton: MatButton, viewContainerRef: ViewContainerRef, renderer: Renderer2);
    ngOnChanges(changes: SimpleChanges): void;
    private createSpinner;
    private destroySpinner;
    static ngAcceptInputType_loading: BooleanInput;
    static ngAcceptInputType_disabled: BooleanInput;
    static ɵfac: i0.ɵɵFactoryDeclaration<MatButtonLoadingDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<MatButtonLoadingDirective, "button[mat-button][loading],             button[mat-raised-button][loading],             button[mat-stroked-button][loading],             button[mat-flat-button][loading],             button[mat-icon-button][loading],             button[mat-fab][loading],             button[mat-mini-fab][loading]", never, { "loading": "loading"; "disabled": "disabled"; "color": "color"; }, {}, never, never, false>;
}