import { ChattyHostBuilder, ChattyHostConnection } from '@looker/chatty';
import { SharedEmbedOptions, Theme, EncodingType } from './types';
type EmbedErrors = {
    SEND: string;
    IFRAME: string;
};
type EmbedItemColour = {
    LIGHT: string;
    DARK: string;
};
type GetImageOptions = {
    encoding: EncodingType;
};
declare abstract class BaseEmbedItem {
    /** @ignore */
    iframe?: HTMLIFrameElement;
    protected connection?: ChattyHostConnection;
    protected abstract name: string;
    protected abstract ERRORS: EmbedErrors;
    protected abstract COLOUR: EmbedItemColour;
    protected abstract options: SharedEmbedOptions;
    protected abstract getEmbedUrl(): string;
    /**
     * Renders an embeddable item into the given `container`.
     *
     * This method should only be called once, and successive attempts to call `render`
     * will fail with an error.
     *
     * @returns a promise that will resolve once the item has successfully been embedded
     */
    render(container: HTMLElement): Promise<void>;
    /**
     * @returns whether auto refreshing is enabled
     */
    isAutoRefresh(): Promise<boolean>;
    /**
     * Enable/Disable auto refreshing.
     */
    setAutoRefresh(value: boolean): Promise<void>;
    /**
     * @returns the number of seconds before a chart or dashboard's data expires
     */
    getMaxDataAge(): Promise<number>;
    /**
     * Set the number of seconds a chart or dashboard's data expires.
     */
    setMaxDataAge(value: number): Promise<void>;
    /**
     * Sets the color scheme to apply to the chart or dashboard.
     *
     * If the theme is set to 'dark' and you have specified a custom background color, you should ensure that your background color has appropriate contrast.
     */
    setTheme(value: Theme): Promise<void>;
    /**
     * @returns the current theme applied to the chart or dashboard
     */
    getTheme(): Promise<string>;
    protected _configureHost(hostBuilder: ChattyHostBuilder): ChattyHostBuilder;
    protected _configureEmbedRoot(embedRoot: HTMLElement): HTMLElement;
    protected _setBackground(background: string | undefined, theme: string | undefined): void;
    protected _retrieveAndSetToken(): Promise<void>;
    /**
     * Send message to embedded app.
     */
    _send(eventName: string, ...payload: unknown[]): Promise<[unknown]>;
    /**
     * Get the image data of embeded entity in base64 or binary encoding
     * @param {GetImageOptions} options options for image generation
     * @returns {string | Blob} image encoded with base64 or binary
     */
    getImage(options: GetImageOptions): Promise<string | Blob>;
}
export default BaseEmbedItem;