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import type { CanvasRenderer } from "../canvas-renderer";
import { VisualNode, type VisualNodeParams } from "./visual-node";
export interface ImageNodeParams extends VisualNodeParams {
url: string;
}
export class ImageNode extends VisualNode<ImageNodeParams> {
private image?: HTMLImageElement;
private readyPromise: Promise<void>;
constructor(params: ImageNodeParams) {
super(params);
this.readyPromise = this.load();
}
private async load() {
const image = new Image();
this.image = image;
await new Promise<void>((resolve, reject) => {
image.onload = () => resolve();
image.onerror = () => reject(new Error("Image load failed"));
image.src = this.params.url;
});
}
async render({ renderer, time }: { renderer: CanvasRenderer; time: number }) {
await super.render({ renderer, time });
if (!this.isInRange(time)) {
return;
}
await this.readyPromise;
if (!this.image) {
return;
}
const mediaW = this.image.naturalWidth || renderer.width;
const mediaH = this.image.naturalHeight || renderer.height;
this.renderVisual({
renderer,
source: this.image,
sourceWidth: mediaW,
sourceHeight: mediaH,
});
}
}
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