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wavesurfer.js

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Navigable audio waveform player

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import EventEmitter from './event-emitter.js'; import type { WaveSurferOptions } from './wavesurfer.js'; type RendererEvents = { click: [relativeX: number, relativeY: number]; dblclick: [relativeX: number, relativeY: number]; drag: [relativeX: number]; scroll: [relativeStart: number, relativeEnd: number]; render: []; }; declare class Renderer extends EventEmitter<RendererEvents> { private static MAX_CANVAS_WIDTH; private options; private parent; private container; private scrollContainer; private wrapper; private canvasWrapper; private progressWrapper; private cursor; private timeouts; private isScrolling; private audioData; private resizeObserver; private isDragging; constructor(options: WaveSurferOptions, audioElement?: HTMLElement); private parentFromOptionsContainer; private initEvents; private initDrag; private getHeight; private initHtml; /** Wavesurfer itself calls this method. Do not call it manually. */ setOptions(options: WaveSurferOptions): void; getWrapper(): HTMLElement; getScroll(): number; destroy(): void; private createDelay; private convertColorValues; private renderBarWaveform; private renderLineWaveform; private renderWaveform; private renderSingleCanvas; private renderChannel; render(audioData: AudioBuffer): void; reRender(): void; zoom(minPxPerSec: number): void; private scrollIntoView; renderProgress(progress: number, isPlaying?: boolean): void; } export default Renderer;