import { type PanelToolsItem, type PanelToolsToolId } from './panel-tools-types';
export declare function orderPanelToolsItems(items: PanelToolsItem[]): PanelToolsItem[];
export declare function isPanelToolsToolId(value: string | null): value is PanelToolsToolId;
export declare function panelToolsRailPlacement(item: PanelToolsItem): 'header' | 'body' | 'footer';
export declare function reconcilePanelToolsAvailability(items: PanelToolsItem[], open: boolean, activeTool: PanelToolsToolId | ''): {
    open: boolean;
    activeTool: PanelToolsToolId | '';
    removedTool: PanelToolsToolId | '';
};
export declare function shouldResyncPanelToolsItems(prev: PanelToolsItem[], next: PanelToolsItem[]): boolean;
export type PanelToolsMotion = 'opening' | 'closing' | 'idle';
export interface PanelToolsTransitionStyle {
    transitionProperty: string;
    transitionDuration: string;
    transitionDelay: string;
}
/** Maximum computed time for the drawer's max-width transition, including delay. */
export declare function panelToolsDrawerTransitionMs(style: PanelToolsTransitionStyle): number;
/** True when the drawer clip is fully closed — safe to skip painting slot content. */
export declare function panelToolsDrawerResting(open: boolean, motion: PanelToolsMotion): boolean;
/** True only when the animated clip has reached the terminal width for its motion phase. */
export declare function panelToolsDrawerAtTerminal(width: number, targetWidth: number, motion: PanelToolsMotion): boolean;
/** Toggle or switch rail tool selection — repeat activation closes the active tool. */
export declare function resolvePanelToolActivation(open: boolean, activeTool: PanelToolsToolId | '', id: PanelToolsToolId): {
    open: boolean;
    activeTool: PanelToolsToolId;
    selected: boolean;
};
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