import { L10n } from '@syncfusion/ej2-base';
import { ListBox } from '@syncfusion/ej2-dropdowns';
import { PaletteComponent } from '../../types/form-schema';
import { ToolboxCategoryConfig } from '../../model/base';
/** @private */
export interface ListBoxPaneProps {
    isOpen: boolean;
    onClose: () => void;
    onSelect: (component: PaletteComponent) => void;
    paletteConfig?: ToolboxCategoryConfig;
    mode?: 'Simple' | 'Developer';
    l10n?: L10n;
    owners?: ListBoxPaneOwners;
    ariaLabel?: string;
    popupAriaLabel?: string;
}
/** @private */
export interface ListBoxPaneOwners {
    listboxes: ListBox[];
    docListeners?: ListBoxPaneTrackedListener[];
    timers?: number[];
}
/** @private */
export interface ListBoxPaneTrackedListener {
    target: EventTarget;
    event: string;
    handler: EventListener;
    opts?: AddEventListenerOptions | boolean;
}
/** @private */
export declare class ListBoxPane {
    private host;
    private props;
    private l10n;
    private wrapperEl;
    private popupEl;
    private listHost;
    private listbox;
    private owners;
    private handlers;
    private destroyed;
    private currentPalette;
    constructor(host: HTMLElement, props: ListBoxPaneProps, l10n: L10n);
    render(props: ListBoxPaneProps): void;
    close(): void;
    destroy(): void;
    __audit(): {
        listboxes: number;
        listeners: number;
    };
    private buildShell;
    private applyVisibility;
    private ensureListbox;
    private buildPalette;
    private categoryDisplayName;
    private paletteEquals;
    private iconMarkupForFirst;
    private onBeforeItemRender;
    private relayoutIntoPopup;
    private findEj2ListboxWrapper;
    private trackTimer;
    private attachGlobalListeners;
    private detachGlobalListeners;
    private addTrackedListener;
    private removeTrackedListener;
    private onDocumentMouseDown;
    private onDocumentKeyDown;
    private onBackdropClick;
    private onListChange;
    private destroyListbox;
}
export default ListBoxPane;