72 lines
1.8 KiB
TypeScript
72 lines
1.8 KiB
TypeScript
import { PublicAPI, SourceAPI, Config } from "ruffle-core";
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interface LoadMessage {
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type: "load";
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config: Config;
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}
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interface PingMessage {
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type: "ping";
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}
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type Message = LoadMessage | PingMessage;
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function handleMessage(message: Message) {
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switch (message.type) {
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case "load":
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window.RufflePlayer = window.RufflePlayer || {};
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window.RufflePlayer.config = {
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...window.RufflePlayer.config,
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...message.config,
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};
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window.RufflePlayer = PublicAPI.negotiate(
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window.RufflePlayer!,
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"extension",
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new SourceAPI("extension")
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);
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return {};
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case "ping":
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// Ping back.
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return {};
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default:
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// Ignore unknown messages.
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return null;
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}
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}
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let ID: string | null = null;
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if (
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document.currentScript !== undefined &&
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document.currentScript !== null &&
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"src" in document.currentScript &&
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document.currentScript.src !== ""
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) {
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try {
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ID = new URL(document.currentScript.src).searchParams.get("id");
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} catch (_) {
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// ID remains null.
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}
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}
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if (ID) {
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window.addEventListener("message", (event) => {
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// We only accept messages from ourselves.
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if (event.source !== window) {
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return;
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}
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const { to, index, data } = event.data;
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if (to === `ruffle_page${ID}`) {
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const response = handleMessage(data);
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if (response) {
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const message = {
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to: `ruffle_content${ID}`,
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index,
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data: response,
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};
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window.postMessage(message, "*");
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}
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}
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});
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}
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