import Gtk from "gi://Gtk";
import type { GjsContext } from "../../../reconciler/gjs-renderer";
import type { HostContext } from "../../../reconciler/host-context";
import { BaseElement, type GjsElement } from "../../gjs-element";
import { ElementLifecycleController } from "../../utils/element-extenders/element-lifecycle-controller";
import type { DiffedProps } from "../../utils/element-extenders/map-properties";
import { PropertyMapper } from "../../utils/element-extenders/map-properties";
import { SyntheticEmitter } from "../../utils/element-extenders/synthetic-emitter";
import type { TextNode } from "../text-node";
import { GridElement } from "./grid";
export interface GridItemProps {
    columnSpan?: number;
    rowSpan?: number;
}
export type GridItemEvents = {
    columnSpanChanged: [number];
    rowSpanChanged: [number];
    itemDestroyed: [GridItemElement];
    itemUpdated: [GridItemElement];
};
export declare class GridItemElement extends BaseElement implements GjsElement<"GRID_ITEM"> {
    static getContext(currentContext: HostContext<GjsContext>): HostContext<GjsContext>;
    readonly kind = "GRID_ITEM";
    protected emptyReplacement: Gtk.Box;
    protected childElement: GjsElement | null;
    protected get widget(): Gtk.Widget;
    protected parent: GridElement | null;
    protected readonly lifecycle: ElementLifecycleController;
    protected handlers: null;
    emitter: SyntheticEmitter<GridItemEvents>;
    protected readonly propsMapper: PropertyMapper<GridItemProps>;
    constructor(props: DiffedProps);
    getSpans(): {
        colSpan: number;
        rowSpan: number;
    };
    updateProps(props: DiffedProps): void;
    appendChild(child: GjsElement | TextNode): void;
    insertBefore(): void;
    remove(parent: GjsElement): void;
    render(): void;
    notifyWillMountTo(parent: GjsElement): boolean;
    notifyMounted(): void;
    notifyChildWillUnmount(): void;
    show(): void;
    hide(): void;
    getWidget(): Gtk.Widget;
    getParentElement(): GridElement | null;
    addEventListener(signal: string, callback: Rg.GjsElementEventListenerCallback): void;
    removeEventListener(signal: string, callback: Rg.GjsElementEventListenerCallback): void;
}