import { Platform } from '@angular/cdk/platform';
import { ElementRef, InjectionToken } from '@angular/core';
/** Possible mode for a progress spinner. */
export declare type ProgressSpinnerMode = 'determinate' | 'indeterminate';
/** @internal */
export declare class ProgressSpinnerBase {
    _elementRef: ElementRef;
    constructor(_elementRef: ElementRef);
}
/** Default `uex-spinner` options that can be overridden. */
/** @internal */
export interface ProgressSpinnerDefaultOptions {
    /** Diameter of the spinner. */
    diameter?: number;
    /** Width of the spinner's stroke. */
    strokeWidth?: number;
    /**
     * Whether the animations should be force to be enabled, ignoring if the current environment is
     * using NoopAnimationsModule.
     */
    _forceAnimations?: boolean;
}
/** Injection token to be used to override the default options for `uex-spinner`. */
/** @internal */
export declare const UEX_PROGRESS_SPINNER_DEFAULT_OPTIONS: InjectionToken<ProgressSpinnerDefaultOptions>;
/** @internal */
export declare function UEX_PROGRESS_SPINNER_DEFAULT_OPTIONS_FACTORY(): ProgressSpinnerDefaultOptions;
/**
 * `<uex-spinner>` component.
 */
export declare class Spinner {
    _elementRef: ElementRef;
    private _document;
    private animationMode?;
    private defaults?;
    /** The diameter of the progress spinner (will set width and height of svg). */
    diameter: number;
    /** Stroke width of the progress spinner. */
    strokeWidth: number;
    /** Mode of the progress circle */
    mode: ProgressSpinnerMode;
    /** Value of the progress circle. */
    value: number;
    /** Color of the progress circle. */
    color: string;
    constructor(_elementRef: ElementRef, platform: Platform, _document: any, animationMode?: string, defaults?: ProgressSpinnerDefaultOptions);
    /** The radius of the spinner, adjusted for stroke width. */
    readonly _circleRadius: number;
    /** The view box of the spinner's svg element. */
    readonly _viewBox: string;
    /** The stroke circumference of the svg circle. */
    readonly _strokeCircumference: number;
    /** The dash offset of the svg circle. */
    readonly _strokeDashOffset: number;
    /** Stroke width of the circle in percent. */
    readonly _circleStrokeWidth: number;
    /** Tracks diameters of existing instances to de-dupe generated styles (default d = 100) */
    private static diameters;
    /**
     * Used for storing all of the generated keyframe animations.
     * @dynamic
     */
    private static styleTag;
    private _value;
    private _color;
    private _oldColor;
    private _mode;
    private _oldMode;
    private _strokeWidth;
    private _fallbackAnimation;
    /** Whether the _uex-animation-noopable class should be applied, disabling animations.  */
    _noopAnimations: boolean;
    private _diameter;
    /** Dynamically generates a style tag containing the correct animation for this diameter. */
    private _attachStyleNode;
    /** Generates animation styles adjusted for the spinner's diameter. */
    private _getAnimationText;
    /** Set the color class of spinner */
    private _updateColor;
}