Move Electron stuff to separate folder, decapitate restart

Summary: Per title

Reviewed By: passy

Differential Revision: D31991715

fbshipit-source-id: 9ca58cdd26c1f540fbe09dcfc7b7f5e7a319ea7d

desktop/app/src/init.tsx

@@ -49,16 +49,14 @@ import styled from '@emotion/styled';
 import {CopyOutlined} from '@ant-design/icons';
 import {getVersionString} from './utils/versionString';
 import {PersistGate} from 'redux-persist/integration/react';
-// eslint-disable-next-line flipper/no-electron-remote-imports
-import {ipcRenderer, remote, SaveDialogReturnValue} from 'electron';
 import {
   setLoggerInstance,
   setUserSessionManagerInstance,
   GK as flipperCommonGK,
 } from 'flipper-common';
 import {internGraphPOSTAPIRequest} from './fb-stubs/user';
-import {getRenderHostInstance, setRenderHostInstance} from './RenderHost';
-import {clipboard} from 'electron';
+import {getRenderHostInstance} from './RenderHost';
+import {initializeElectron} from './electron/initializeElectron';
 
 if (process.env.NODE_ENV === 'development' && os.platform() === 'darwin') {
   // By default Node.JS has its internal certificate storage and doesn't use
@@ -189,7 +187,7 @@ function setProcessState(store: Store) {
 }
 
 function init() {
-  initializeFlipperForElectron();
+  initializeElectron();
   // TODO: centralise all those initialisations in a single configuration call
   flipperCommonGK.get = (name) => GK.get(name);
   const store = getStore();
@@ -259,59 +257,3 @@ const CodeBlock = styled(Input.TextArea)({
   ...theme.monospace,
   color: theme.textColorSecondary,
 });
-
-function initializeFlipperForElectron() {
-  setRenderHostInstance({
-    processId: remote.process.pid,
-    readTextFromClipboard() {
-      return clipboard.readText();
-    },
-    async showSaveDialog(options) {
-      return (await remote.dialog.showSaveDialog(options))?.filePath;
-    },
-    async showOpenDialog({filter, defaultPath}) {
-      const result = await remote.dialog.showOpenDialog({
-        defaultPath,
-        properties: ['openFile'],
-        filters: filter ? [filter] : undefined,
-      });
-      return result.filePaths?.[0];
-    },
-    showSelectDirectoryDialog(defaultPath = path.resolve('/')) {
-      return remote.dialog
-        .showOpenDialog({
-          properties: ['openDirectory'],
-          defaultPath,
-        })
-        .then((result: SaveDialogReturnValue & {filePaths: string[]}) => {
-          if (result.filePath) {
-            return result.filePath.toString();
-          }
-          // Electron typings seem of here, just in case,
-          // (can be tested with settings dialog)
-          // handle both situations
-          if (result.filePaths) {
-            return result.filePaths[0];
-          }
-          return undefined;
-        });
-    },
-    registerShortcut(shortcut, callback) {
-      remote.globalShortcut.register(shortcut, callback);
-    },
-    hasFocus() {
-      return remote.getCurrentWindow().isFocused();
-    },
-    onIpcEvent(event, callback) {
-      ipcRenderer.on(event, (_ev, ...args: any[]) => {
-        callback(...(args as any));
-      });
-    },
-    sendIpcEvent(event, ...args: any[]) {
-      ipcRenderer.send(event, ...args);
-    },
-    shouldUseDarkColors() {
-      return remote.nativeTheme.shouldUseDarkColors;
-    },
-  });
-}