import { ElementRef } from '@angular/core';
export declare class OnlyNumberDirective {
    private hostElement;
    allowDecimals: boolean;
    allowSign: boolean;
    decimalSeparator: string;
    previousValue: string;
    integerUnsigned: string;
    integerSigned: string;
    decimalUnsigned: string;
    decimalSigned: string;
    /**
     * Class constructor
     * @param hostElement
     */
    constructor(hostElement: ElementRef);
    /**
     * Event handler for host's change event
     * @param e
     */
    onChange(e: any): void;
    /**
     * Event handler for host's paste event
     * @param e
     */
    onPaste(e: any): void;
    /**
     * Event handler for host's keydown event
     * @param event
     */
    onKeyDown(e: KeyboardEvent): void;
    /**
     * Test whether value is a valid number or not
     * @param value
     */
    validateValue(value: string): void;
    /**
     * Get key's name
     * @param e
     */
    getName(e: any): string;
}