import { type IAnimatable } from '../../../Behaviors/Animatable';
import { ICloseable, type ICloseableEvents } from '../../../Behaviors/Closeable';
import { type IExpandableBehavior, type IExpandableEvents, type IExpandableProps } from '../../../Behaviors/Expandable';
import { ISlottable } from '../../../Behaviors/Slottable';
import { Size } from '../../../Types/Size';
import { CustomElement } from '../../Abstracts/CustomElement';
import type { IMessageElementProps } from './IMessageElementProps';
declare const MessageElement_base: (abstract new (...args: Array<any>) => import("../../../../Controls/Behaviors/Themeable").IThemeableProps) & (abstract new (...args: Array<any>) => IExpandableProps & IExpandableEvents & IExpandableBehavior) & (abstract new (...args: Array<any>) => import("../../../Behaviors/Animatable").IAnimatableProps & IAnimatable) & (abstract new (...args: Array<any>) => import("../../../Behaviors/Closeable").ICloseableProps & ICloseableEvents & ICloseable) & (abstract new (...args: Array<any>) => import("../../../Behaviors/Disableable").IDisableableProps) & (abstract new (...args: Array<any>) => import("../../../Behaviors/Variantable").IVariantableProps) & (abstract new (...args: Array<any>) => import("../../../Behaviors/Appearanceable").IAppearanceableProps) & (abstract new (...args: Array<any>) => import("../../../Behaviors/Fitable").IFitableProps) & (abstract new (...args: Array<any>) => import("../../../Behaviors/TextFormattable").ITextFormattableProps) & (abstract new (...args: Array<any>) => import("../../../Behaviors/Slottable").ISlottableProps & ISlottable) & typeof CustomElement & import("../../../../Controls/Behaviors/Themeable").IThemeableCtor;
/**
 * Message - A compact, closeable notification component for displaying concise information.
 *
 * @description
 * The `Message` component is a simplified notification element based on the Banner component.
 * It focuses on displaying an icon, header, and subheader with optional close functionality,
 * without slots or action areas. This makes it ideal for quick, dismissible messages.
 * The component supports expandable content that can be collapsed to show only a specified
 * number of lines, with a toggle button to reveal the full content.
 *
 * @name Message
 * @element mosaik-message
 * @category Notifications
 *
 * @fires closed {ClosedEvent} - Fired when the message is closed.
 * @fires expanded {ExpandedEvent} - Fired when the message content is expanded.
 * @fires collapsed {CollapsedEvent} - Fired when the message content is collapsed.
 * @fires toggled {ToggledEvent} - Fired when the message content is toggled.
 *
 * @slot - The default slot for placing rich content inside the message (only used when expandable).
 *
 * @csspart root - The root part of the message.
 * @csspart header-row - The header row containing icon, text, and close button.
 * @csspart icon - The icon part of the message.
 * @csspart text - The text part of the message.
 * @csspart header - The header text part of the message.
 * @csspart content - The content text part of the message.
 * @csspart contentWrapper - The wrapper around the content for expandable behavior.
 * @csspart expandedContent - The expanded content area containing slotted content.
 * @csspart footer - The footer area containing the caret toggle button.
 * @csspart caret - The caret button for toggling the expandable content.
 * @csspart close - The close button or icon part of the message.
 *
 * @cssprop {String} --message-font-family - The font family for the message.
 * @cssprop {String} --message-font-size - The font size for the message.
 * @cssprop {String} --message-font-weight - The font weight for the message.
 * @cssprop {Color} --message-background-color - The background color for the message.
 * @cssprop {Color} --message-border-color - The border color for the message.
 * @cssprop {Color} --message-foreground-color - The foreground color for the message.
 * @cssprop {String} --message-border-width - The border width for the message.
 * @cssprop {String} --message-border-radius - The border radius for the message.
 * @cssprop {String} --message-border-style - The border style for the message.
 * @cssprop {String} --message-transition-duration - The transition duration for the message.
 * @cssprop {String} --message-transition-mode - The transition mode for the message.
 * @cssprop {String} --message-transition-property - The transition property for the message.
 * @cssprop {String} --message-shadow - The shadow effect for the message.
 * @cssprop {String} --message-padding-top - The top padding for the message.
 * @cssprop {String} --message-padding-left - The left padding for the message.
 * @cssprop {String} --message-padding-bottom - The bottom padding for the message.
 * @cssprop {String} --message-padding-right - The right padding for the message.
 * @cssprop {String} --message-gap - The gap between elements within the message.
 * @cssprop {Number} --message-collapsed-lines - The number of visible lines when collapsed.
 *
 * @dependency {IconElement} - The Icon element.
 * @dependency {TextElement} - The Text element.
 * @dependency {ButtonElement} - The Button element for the caret toggle.
 * @dependency {DismissElement} - The Dismiss element for closing the message.
 *
 * @example
 * Simple closeable notification:
 * ```html
 * <mosaik-message
 *   header="System Update"
 *   content="We will be back online shortly."
 *   closeable></mosaik-message>
 * ```
 *
 * @example
 * Expandable message with line limit:
 * ```html
 * <mosaik-message
 *   header="Long Message"
 *   content="This is a very long message that will be truncated after the specified number of lines."
 *   expandable
 *   collapsed-lines="2"></mosaik-message>
 * ```
 *
 * @example
 * Expandable message with rich slotted content:
 * ```html
 * <mosaik-message
 *   header="Rich Content"
 *   expandable>
 *   <mosaik-text text="This message contains rich formatted content."></mosaik-text>
 *   <mosaik-button label="Learn More" appearance="plain"></mosaik-button>
 * </mosaik-message>
 * ```
 *
 * @public
 */
export declare class MessageElement extends MessageElement_base implements IMessageElementProps, ICloseableEvents, ICloseable, IExpandableBehavior, IExpandableProps, IExpandableEvents, IAnimatable, ISlottable {
    private readonly _provider;
    private _icon;
    private _iconSize;
    private _header;
    private _content;
    private _expandable;
    /**
     * @public
     */
    constructor();
    /**
     * Returns the `is` property.
     * The `is` property represents natural name of this element.
     *
     * @public
     * @static
     * @readonly
     */
    static get is(): string;
    /**
     * Gets or sets the `icon` property.
     *
     * @public
     */
    get icon(): string;
    set icon(value: string);
    /**
     * Gets or sets the `iconSize` property.
     *
     * @public
     * @attr
     */
    get iconSize(): Size | null;
    set iconSize(value: Size | null);
    /**
     * Gets or sets the `header` property.
     *
     * @public
     */
    get header(): string;
    set header(value: string);
    /**
     * Gets or sets the `content` property.
     *
     * @public
     */
    get content(): string;
    set content(value: string);
    /**
     * Gets or sets the `expandable` property.
     * When enabled, the content will be truncated to `collapsedLines` lines
     * and a toggle button will be displayed.
     *
     * @public
     * @attr
     */
    get expandable(): boolean;
    set expandable(value: boolean);
    /**
     * Closes the `MessageElement`.
     *
     * @public
     * @override
     */
    close(): Promise<boolean>;
    /**
     * Toggles the message between expanded and collapsed states.
     * Only works when `expandable` is `true`.
     *
     * @public
     * @override
     */
    toggle(): void;
    /**
     * Expands the message content.
     * Only works when `expandable` is `true`.
     *
     * @public
     * @override
     */
    expand(): void;
    /**
     * Collapses the message content.
     * Only works when `expandable` is `true`.
     *
     * @public
     * @override
     */
    collapse(): void;
    /**
     * This method is invoked when the `isExpanded` property is changed.
     *
     * @param prev - The previous value.
     * @param next - The new value.
     * @public
     * @override
     */
    onIsExpandedChanged(prev: boolean, next: boolean): void;
}
/**
 * @public
 */
export declare namespace MessageElement {
    type Props = IMessageElementProps;
}
/**
 * @public
 */
declare global {
    interface HTMLElementTagNameMap {
        'mosaik-message': MessageElement;
    }
}
export {};
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