Interface RenderingContextHandler

Trait for objects that need to handle rendering context loss and restoration.

interface RenderingContextHandler {
    onRenderingContextLost(options: {
        canvas: HTMLCanvasElement;
    }): void;
    onRenderingContextRestored(options: {
        canvas: HTMLCanvasElement;
    }): void;
}

Implemented by

Methods

onRenderingContextLost onRenderingContextRestored

Methods

onRenderingContextLost

  • onRenderingContextLost(options): void

  • Called when the rendering context has been lost.

    Parameters

    • options: {
          canvas: HTMLCanvasElement;
      }

      The options.

      • canvas: HTMLCanvasElement

        The canvas holding the restored rendering context.

    Returns void

onRenderingContextRestored

  • onRenderingContextRestored(options): void

  • Called when the rendering context has been restored.

    Parameters

    • options: {
          canvas: HTMLCanvasElement;
      }

      The options.

      • canvas: HTMLCanvasElement

        The canvas holding the restored rendering context.

    Returns void

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