playcanvas/build/playcanvas/src/framework/handlers/json.js

Open-source WebGL/WebGPU 3D engine for the web

import { http, Http } from "../../platform/net/http.js";
import { ResourceHandler } from "./handler.js";
class JsonHandler extends ResourceHandler {
	decoder = null;
	constructor(app) {
		super(app, "json");
	}
	load(url, callback) {
		if (typeof url === "string") {
			url = {
				load: url,
				original: url
			};
		}
		const options = {
			retry: this.maxRetries > 0,
			maxRetries: this.maxRetries
		};
		if (url.load.startsWith("blob:")) {
			options.responseType = Http.ResponseType.JSON;
		}
		http.get(url.load, options, (err, response) => {
			if (!err) {
				callback(null, response);
			} else {
				callback(`Error loading JSON resource: ${url.original} [${err}]`);
			}
		});
	}
	openBinary(data) {
		this.decoder ?? (this.decoder = new TextDecoder("utf-8"));
		return JSON.parse(this.decoder.decode(data));
	}
}
export {
	JsonHandler
};