Move CoWebsite to generic class

front/src/WebRtc/CoWebsite/CoWesbite.ts

@@ -0,0 +1,17 @@
+import type CancelablePromise from "cancelable-promise";
+import type { Readable, Writable } from "svelte/store";
+
+export type CoWebsiteState = "asleep" | "loading" | "ready";
+
+export interface CoWebsite {
+    getId(): string;
+    getUrl(): URL;
+    getState(): CoWebsiteState;
+    getStateSubscriber(): Readable<CoWebsiteState>;
+    getIframe(): HTMLIFrameElement | undefined;
+    getLoadIframe(): CancelablePromise<HTMLIFrameElement> | undefined;
+    getWidthPercent(): number | undefined;
+    isClosable(): boolean;
+    load(): CancelablePromise<HTMLIFrameElement>;
+    unload(): Promise<void>;
+}