import { ElementRef, EventEmitter, Injector, OnChanges, SimpleChanges } from '@angular/core';
import { Context } from './core/context';
import { FormBuilder } from '@angular/forms';
import { WidgetFactory } from './core/widget.factory';
import { WidgetRegistry } from './core';
export declare class NgJsonEditorComponent implements OnChanges {
    private fb;
    private wf;
    private wr;
    private injector;
    ref: ElementRef;
    constructor(fb: FormBuilder, wf: WidgetFactory, wr: WidgetRegistry, injector: Injector, ref: ElementRef);
    schema: any;
    model: any;
    onChange: EventEmitter<{
        value: any;
        errors: any[];
        valid: boolean;
        formValid: boolean;
        schemaValid: boolean;
    }>;
    context: Context<any>;
    private readonly parser;
    private readonly validator;
    private readonly state;
    static isEmpty(data: any): boolean;
    ngOnChanges(changes: SimpleChanges): void;
    private removeEmptyStringsInBody;
    private applyModelChanges;
}