feat: Initial clean release of CHM

packages/app-mobile/components/plugins/backgroundPage/initializePluginBackgroundIframe.ts

@@ -0,0 +1,18 @@
+import WindowMessenger from '@joplin/lib/utils/ipc/WindowMessenger';
+import { PluginMainProcessApi, PluginWebViewApi } from '../types';
+import reportUnhandledErrors from './utils/reportUnhandledErrors';
+import wrapConsoleLog from './utils/wrapConsoleLog';
+
+
+export const initializePluginBackgroundIframe = async (messageChannelId: string) => {
+	const localApi = { };
+	const messenger = new WindowMessenger<PluginWebViewApi, PluginMainProcessApi>(messageChannelId, parent, localApi);
+	await messenger.awaitRemoteReady();
+
+	(window as Window & { joplin?: unknown }).joplin = messenger.remoteApi.api.joplin;
+
+	reportUnhandledErrors(messenger.remoteApi.onError);
+	wrapConsoleLog(messenger.remoteApi.onLog);
+};
+
+export default initializePluginBackgroundIframe;