import { LitElement, CSSResultGroup, PropertyValues } from 'lit';
/**
 * Assistant-style dialog shell with header, scrollable content area, and input bar footer.
 * Wraps pd-popup via composition. Reusable for AI chat, image search, etc.
 *
 * @tagname pd-assistant-dialog
 * @summary Assistant dialog with header, content slot, and input bar.
 *
 * @event pd-assistant-dialog-close - Fired when dialog is closed.
 * @event pd-assistant-submit - Bubbles from the input bar on submit.
 *
 * @slot - Default slot for main content (results, messages, etc.).
 *
 * @cssprop --pd-assistant-dialog-width - Dialog width. Default: `min(520px, 90vw)`.
 * @cssprop --pd-assistant-dialog-content-min-height - Min content height. Default: `120px`.
 * @cssprop --pd-assistant-dialog-content-max-height - Max content height. Default: `50vh`.
 */
export declare class PdAssistantDialog extends LitElement {
    /** Whether the dialog is open. Reactive — controls pd-popup visibility. */
    open: boolean;
    /** Dialog title shown in the header. */
    dialogTitle: string;
    /** Icon displayed next to the title. */
    dialogIcon: string;
    /** Placeholder for the input bar. */
    inputPlaceholder: string;
    /** Button text for the input bar. */
    inputButtonText: string;
    /** Disable the input bar. */
    inputDisabled: boolean;
    /** Hide the input bar entirely. */
    hideInput: boolean;
    private _popup;
    static styles: CSSResultGroup;
    updated(changed: PropertyValues<this>): void;
    render(): import('lit').TemplateResult<1>;
    /** Open the dialog. */
    show(): void;
    /** Close the dialog. */
    hide(): void;
    /** Clear the input bar value. */
    clearInput(): void;
    private _onPopupClose;
    private _onCloseKeyDown;
}
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