@stringsync/vexml/dist/esm/playback/cursor.d.ts

MusicXML to Vexflow

import * as events from '../events';
import { Rect } from '../spatial';
import { CursorFrame } from './cursorframe';
import { CursorPath } from './cursorpath';
export type CursorState = {
    index: number;
    hasNext: boolean;
    hasPrevious: boolean;
    rect: Rect;
    frame: CursorFrame;
};
export type CursorEventMap = {
    change: CursorState;
};
export declare class Cursor {
    private path;
    private locator;
    private scroller;
    private topic;
    private currentIndex;
    private currentAlpha;
    private previousIndex;
    private previousAlpha;
    private constructor();
    static create(path: CursorPath, scrollContainer: HTMLElement): Cursor;
    getCurrentState(): CursorState;
    getPreviousState(): CursorState | null;
    next(): void;
    previous(): void;
    goTo(index: number): void;
    /** Snaps to the closest sequence entry step. */
    snap(timeMs: number): void;
    /** Seeks to the exact position, interpolating as needed. */
    seek(timestampMs: number): void;
    isFullyVisible(): boolean;
    scrollIntoView(behavior?: ScrollBehavior): void;
    addEventListener<N extends keyof CursorEventMap>(name: N, listener: events.EventListener<CursorEventMap[N]>, opts?: {
        emitBootstrapEvent?: boolean;
    }): number;
    removeEventListener(...ids: number[]): void;
    removeAllEventListeners(): void;
    private getState;
    private getScrollPoint;
    private normalize;
    private getDuration;
    private getCursorRect;
    private update;
}