import { type NativeChat } from './harness-native-selection.js';
export interface SelectionPosition {
    left: number;
    top: number;
    overlay?: boolean;
}
export interface NativeSelectionSeat extends SelectionPosition {
    key: string;
    row: HTMLElement;
}
export interface NativeSelectionLayout {
    seats: readonly NativeSelectionSeat[];
    viewport: HTMLElement | null;
    highlight?: {
        left: number;
        right: number;
    };
    actionDock?: HTMLElement;
}
export declare const nativeSelectionActionOverlayCss = "\n  :has(> [data-slot=\"conversation.input.dock\"] > [data-arkme-native-selection=\"actions\"]) { position: relative; }\n  [data-slot=\"conversation.input.dock\"] > [data-arkme-native-selection=\"actions\"] { position: absolute; inset: 0; z-index: 1; }\n  [data-slot=\"conversation.input.dock\"]:has(> [data-arkme-native-selection=\"actions\"]) + [data-slot=\"conversation.composer.bar\"] { visibility: hidden; }\n";
export declare function nativeSelectionHighlightSelector(keys: ReadonlySet<string>): string;
export declare function measureNativeSelection(viewport: HTMLElement, flow: HTMLElement, row: HTMLElement): SelectionPosition | undefined;
export declare function sameSelectionPosition(a: SelectionPosition, b: SelectionPosition | undefined): boolean;
/** Only the adapter knows native DOM attributes. No styles or attributes are written to host elements. */
export declare function watchNativeSelectionGeometry(options: {
    doc: Document;
    chat(): NativeChat;
    publish(layout: NativeSelectionLayout): void;
    fail(): void;
}): {
    dispose(): void;
    refresh(): void;
    valid(seat: NativeSelectionSeat): boolean;
};
/** Header slots do not inherit the native header's private view/store hooks. */
export declare function observeNativeChatPresence(doc: Document, publish: (present: boolean) => void): () => void;
/** Resolve a selectable message body for pointer actions; native controls keep their own behavior. */
export declare function nativeSelectionMessageRow(doc: Document, target: EventTarget | null, chat: NativeChat): {
    key: string;
    row: HTMLElement;
} | undefined;
/** Expanded row paint is outside the native row box; resolve only bare scroll/flow space. */
export declare function nativeSelectionPointerRow(doc: Document, event: MouseEvent, chat: NativeChat, viewport: HTMLElement | null): {
    key: string;
    row: HTMLElement;
} | undefined;
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