Method dispose

src/worker/ChartGPUWorkerProxy.ts:1455–1503

()

  }
  
  dispose(): void {
    if (this.isDisposed) {
      return; // Already disposed
    }
    
    this.isDisposed = true;
    this.isInitialized = false;
    
    // Clean up event listeners FIRST to stop event flow
    this.cleanupEventListeners();
    
    // Clean up resize monitoring (ResizeObserver and DPR monitoring)
    this.cleanupResizeMonitoring();
    
    // Dispose overlays BEFORE worker disposal to prevent memory leaks
    this.disposeOverlays();
    
    // Send dispose message to worker
    this.sendMessage({
      type: 'dispose',
      chartId: this.chartId,
    });
    
    // Reject all pending requests
    for (const pending of this.pendingRequests.values()) {
      clearTimeout(pending.timeout);
      pending.reject(new ChartGPUWorkerError(
        'Chart disposed before operation completed',
        'DISPOSED',
        pending.operation,
        this.chartId
      ));
    }
    this.pendingRequests.clear();
    
    // Clear all event listeners
    for (const listeners of this.listeners.values()) {
      listeners.clear();
    }
    
    // Remove worker message handler
    this.worker.removeEventListener('message', this.boundMessageHandler);
    
    // Remove canvas from container
    const canvas = this.container.querySelector('canvas');
    if (canvas) {
      canvas.remove();
    }
  }
  
  on(eventName: 'crosshairMove', callback: ChartGPUCrosshairMoveCallback): void;
  on(eventName: ChartGPUEventName, callback: ChartGPUEventCallback): void;