import type { PlayerChapter } from './chapter-logic.js';
import { type PlayerStrings } from '../core/strings.js';
/**
 * Chapters button + dropdown list. Mirrors the CcButton/QualityMenu pattern: a
 * button in the controls bar toggles a dropdown of chapters (timestamp + title).
 * Selecting a chapter seeks to its start. Titles render as inert text — they are
 * author/delivery-supplied and only length-validated server-side.
 */
export declare class ChapterMenu {
    private container;
    private btn;
    private dropdown;
    private chapters;
    private onSelect;
    private activeId;
    private isOpen;
    private unsubscribes;
    constructor(chapters: PlayerChapter[], onSelect: (startTime: number) => void, strings?: PlayerStrings);
    getElement(): HTMLDivElement;
    /** Highlight the chapter with the given id (or clear when null). */
    setActive(id: string | null): void;
    dispose(): void;
    private renderOptions;
}
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