Context isolation for About, ScreenShare, Preferences

ts/windows/screenShare/preload.ts

@@ -0,0 +1,31 @@
+// Copyright 2021 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import React from 'react';
+import ReactDOM from 'react-dom';
+import { contextBridge, ipcRenderer } from 'electron';
+
+// It is important to call this as early as possible
+import '../context';
+
+import { SignalWindow } from '../configure';
+import { CallingScreenSharingController } from '../../components/CallingScreenSharingController';
+
+contextBridge.exposeInMainWorld('SignalWindow', SignalWindow);
+
+function renderScreenSharingController(presentedSourceName: string): void {
+  ReactDOM.render(
+    React.createElement(CallingScreenSharingController, {
+      i18n: SignalWindow.i18n,
+      onCloseController: () =>
+        ipcRenderer.send('close-screen-share-controller'),
+      onStopSharing: () => ipcRenderer.send('stop-screen-share'),
+      presentedSourceName,
+    }),
+    document.getElementById('app')
+  );
+}
+
+ipcRenderer.once('render-screen-sharing-controller', (_, name: string) => {
+  renderScreenSharingController(name);
+});