import { GlobalProps } from '../../shared/global';
import { SizeUnits } from '../../shared/box';
export interface ChatProps extends GlobalProps {
    /**
     * The URL to embed within the Chat component iframe.
     */
    src?: string;
    /**
     * Adjust the inline size.
     *
     * Surfaces may impose sizing restrictions for the component, therefore the size set
     * may not be the actual size rendered.
     *
     * @see https://developer.mozilla.org/en-US/docs/Web/CSS/inline-size
     */
    inlineSize?: SizeUnits;
    /**
     * Adjust the block size.
     *
     * Surface may impose sizing restrictions for the component, therefore the size set
     * may not be the actual size rendered.
     *
     * @see https://developer.mozilla.org/en-US/docs/Web/CSS/block-size
     */
    blockSize?: SizeUnits;
    /**
     * A label that describes the purpose or contents of the component. When set,
     * it will be announced to users using assistive technologies and will
     * provide them with more context.
     */
    accessibilityLabel?: string;
    /**
     * Callback when the embedded page sends a message.
     */
    onMessage?: (event: MessageEvent) => void;
    /**
     * Callback when the embedded page is ready and a message port has been created to
     * communicate with the host page.
     */
    onReady?: (event: ReadyEvent) => void;
}
export interface MessageEvent {
    /**
     * The data sent by the message emitter (the embedded page).
     *
     * @see https://developer.mozilla.org/en-US/docs/Web/API/MessageEvent/data
     */
    data?: any;
    /**
     * A string representing the origin of the message emitter (the embedded page).
     *
     * @see https://developer.mozilla.org/en-US/docs/Web/API/MessageEvent/origin
     */
    origin: string;
}
export interface ReadyEvent {
    /**
     * A function to send messages to the embedded page.
     */
    postMessage: (message: any, transfer?: Transferable[]) => void;
}