Enables sandbox for all windows except main

ts/windows/minimalContext.ts

@@ -0,0 +1,56 @@
+// Copyright 2023 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import type { MenuItemConstructorOptions } from 'electron';
+import { ipcRenderer } from 'electron';
+
+import type { MenuOptionsType, MenuActionType } from '../types/menu';
+import type { MainWindowStatsType, MinimalSignalContextType } from './context';
+import { activeWindowService } from '../context/activeWindowService';
+import { config } from '../context/config';
+import { createNativeThemeListener } from '../context/createNativeThemeListener';
+import { createSetting } from '../util/preload';
+import { environment } from '../context/environment';
+import { localeMessages } from '../context/localeMessages';
+import { waitForSettingsChange } from '../context/waitForSettingsChange';
+
+const hasCustomTitleBar = ipcRenderer.sendSync('OS.getHasCustomTitleBar');
+export const MinimalSignalContext: MinimalSignalContextType = {
+  activeWindowService,
+  config,
+  async executeMenuAction(action: MenuActionType): Promise<void> {
+    return ipcRenderer.invoke('executeMenuAction', action);
+  },
+  async executeMenuRole(
+    role: MenuItemConstructorOptions['role']
+  ): Promise<void> {
+    await ipcRenderer.invoke('executeMenuRole', role);
+  },
+  getAppInstance: (): string | undefined =>
+    config.appInstance ? String(config.appInstance) : undefined,
+  getEnvironment: () => environment,
+  getNodeVersion: (): string => String(config.nodeVersion),
+  getPath: (name: 'userData' | 'home'): string => {
+    return String(config[`${name}Path`]);
+  },
+  getVersion: (): string => String(config.version),
+  async getMainWindowStats(): Promise<MainWindowStatsType> {
+    return ipcRenderer.invoke('getMainWindowStats');
+  },
+  async getMenuOptions(): Promise<MenuOptionsType> {
+    return ipcRenderer.invoke('getMenuOptions');
+  },
+  getI18nLocale: () => config.resolvedTranslationsLocale,
+  getI18nLocaleMessages: () => localeMessages,
+  nativeThemeListener: createNativeThemeListener(ipcRenderer, window),
+  OS: {
+    getClassName: () => ipcRenderer.sendSync('OS.getClassName'),
+    hasCustomTitleBar: () => hasCustomTitleBar,
+    platform: process.platform,
+    release: config.osRelease,
+  },
+  Settings: {
+    themeSetting: createSetting('themeSetting', { setter: false }),
+    waitForChange: waitForSettingsChange,
+  },
+};