refactor: convert ipc-renderer.ts to TypeScript (#19556)

* refactor: convert ipc-renderer.ts to TypeScript

* Update typings/internal-ambient.d.ts

Co-Authored-By: Samuel Attard <sattard@slack-corp.com>

filenames.auto.gni

@@ -140,7 +140,7 @@ auto_filenames = {
     "lib/common/web-view-methods.ts",
     "lib/renderer/api/crash-reporter.js",
     "lib/renderer/api/desktop-capturer.ts",
-    "lib/renderer/api/ipc-renderer.js",
+    "lib/renderer/api/ipc-renderer.ts",
     "lib/renderer/api/remote.js",
     "lib/renderer/api/web-frame.ts",
     "lib/renderer/callbacks-registry.ts",
@@ -299,7 +299,7 @@ auto_filenames = {
     "lib/renderer/api/crash-reporter.js",
     "lib/renderer/api/desktop-capturer.ts",
     "lib/renderer/api/exports/electron.js",
-    "lib/renderer/api/ipc-renderer.js",
+    "lib/renderer/api/ipc-renderer.ts",
     "lib/renderer/api/module-list.js",
     "lib/renderer/api/remote.js",
     "lib/renderer/api/web-frame.ts",
@@ -348,7 +348,7 @@ auto_filenames = {
     "lib/renderer/api/crash-reporter.js",
     "lib/renderer/api/desktop-capturer.ts",
     "lib/renderer/api/exports/electron.js",
-    "lib/renderer/api/ipc-renderer.js",
+    "lib/renderer/api/ipc-renderer.ts",
     "lib/renderer/api/module-list.js",
     "lib/renderer/api/remote.js",
     "lib/renderer/api/web-frame.ts",

lib/renderer/api/ipc-renderer.ts

@@ -1,10 +1,8 @@
-'use strict'
-
 const { ipc } = process.electronBinding('ipc')
 const v8Util = process.electronBinding('v8_util')
 
 // Created by init.js.
-const ipcRenderer = v8Util.getHiddenValue(global, 'ipc')
+const ipcRenderer = v8Util.getHiddenValue<Electron.IpcRenderer>(global, 'ipc')
 const internal = false
 
 ipcRenderer.send = function (channel, ...args) {
@@ -23,10 +21,6 @@ ipcRenderer.sendTo = function (webContentsId, channel, ...args) {
   return ipc.sendTo(internal, false, webContentsId, channel, args)
 }
 
-ipcRenderer.sendToAll = function (webContentsId, channel, ...args) {
-  return ipc.sendTo(internal, true, webContentsId, channel, args)
-}
-
 ipcRenderer.invoke = function (channel, ...args) {
   return ipc.invoke(channel, args).then(({ error, result }) => {
     if (error) { throw new Error(`Error invoking remote method '${channel}': ${error}`) }
@@ -34,4 +28,4 @@ ipcRenderer.invoke = function (channel, ...args) {
   })
 }
 
-module.exports = ipcRenderer
+export default ipcRenderer

lib/renderer/extensions/web-navigation.ts

@@ -1,17 +1,16 @@
 import { Event } from '@electron/internal/renderer/extensions/event'
-import { IpcMainEvent } from 'electron'
-const { ipcRendererInternal } = require('@electron/internal/renderer/ipc-renderer-internal')
+import { ipcRendererInternal } from '@electron/internal/renderer/ipc-renderer-internal'
 
 class WebNavigation {
   private onBeforeNavigate = new Event()
   private onCompleted = new Event()
 
   constructor () {
-    ipcRendererInternal.on('CHROME_WEBNAVIGATION_ONBEFORENAVIGATE', (event: IpcMainEvent, details: any) => {
+    ipcRendererInternal.on('CHROME_WEBNAVIGATION_ONBEFORENAVIGATE', (event: Electron.IpcRendererEvent, details: any) => {
       this.onBeforeNavigate.emit(details)
     })
 
-    ipcRendererInternal.on('CHROME_WEBNAVIGATION_ONCOMPLETED', (event: IpcMainEvent, details: any) => {
+    ipcRendererInternal.on('CHROME_WEBNAVIGATION_ONCOMPLETED', (event: Electron.IpcRendererEvent, details: any) => {
       this.onCompleted.emit(details)
     })
   }

lib/renderer/ipc-renderer-internal.ts

@@ -1,22 +1,22 @@
-const binding = process.electronBinding('ipc')
+const { ipc } = process.electronBinding('ipc')
 const v8Util = process.electronBinding('v8_util')
 
 // Created by init.js.
-export const ipcRendererInternal: Electron.IpcRendererInternal = v8Util.getHiddenValue(global, 'ipc-internal')
+export const ipcRendererInternal = v8Util.getHiddenValue<Electron.IpcRendererInternal>(global, 'ipc-internal')
 const internal = true
 
 ipcRendererInternal.send = function (channel, ...args) {
-  return binding.ipc.send(internal, channel, args)
+  return ipc.send(internal, channel, args)
 }
 
 ipcRendererInternal.sendSync = function (channel, ...args) {
-  return binding.ipc.sendSync(internal, channel, args)[0]
+  return ipc.sendSync(internal, channel, args)[0]
 }
 
 ipcRendererInternal.sendTo = function (webContentsId, channel, ...args) {
-  return binding.ipc.sendTo(internal, false, webContentsId, channel, args)
+  return ipc.sendTo(internal, false, webContentsId, channel, args)
 }
 
 ipcRendererInternal.sendToAll = function (webContentsId, channel, ...args) {
-  return binding.ipc.sendTo(internal, true, webContentsId, channel, args)
+  return ipc.sendTo(internal, true, webContentsId, channel, args)
 }

lib/sandboxed_renderer/init.js

@@ -11,10 +11,10 @@ const v8Util = process.electronBinding('v8_util')
 // Expose Buffer shim as a hidden value. This is used by C++ code to
 // deserialize Buffer instances sent from browser process.
 v8Util.setHiddenValue(global, 'Buffer', Buffer)
-// The `lib/renderer/api/ipc-renderer.js` module looks for the ipc object in the
+// The `lib/renderer/api/ipc-renderer.ts` module looks for the ipc object in the
 // "ipc" hidden value
 v8Util.setHiddenValue(global, 'ipc', new EventEmitter())
-// The `lib/renderer/ipc-renderer-internal.js` module looks for the ipc object in the
+// The `lib/renderer/ipc-renderer-internal.ts` module looks for the ipc object in the
 // "ipc-internal" hidden value
 v8Util.setHiddenValue(global, 'ipc-internal', new EventEmitter())
 // The process object created by webpack is not an event emitter, fix it so

typings/internal-ambient.d.ts

@@ -14,6 +14,14 @@ declare namespace NodeJS {
     isComponentBuild(): boolean;
   }
 
+  interface IpcBinding {
+    send(internal: boolean, channel: string, args: any[]): void;
+    sendSync(internal: boolean, channel: string, args: any[]): any;
+    sendToHost(channel: string, args: any[]): void;
+    sendTo(internal: boolean, sendToAll: boolean, webContentsId: number, channel: string, args: any[]): void;
+    invoke<T>(channel: string, args: any[]): Promise<{ error: string, result: T }>;
+  }
+
   interface V8UtilBinding {
     getHiddenValue<T>(obj: any, key: string): T;
     setHiddenValue<T>(obj: any, key: string, value: T): void;
@@ -28,6 +36,7 @@ declare namespace NodeJS {
     _linkedBinding(name: string): any;
     electronBinding(name: string): any;
     electronBinding(name: 'features'): FeaturesBinding;
+    electronBinding(name: 'ipc'): { ipc: IpcBinding };
     electronBinding(name: 'v8_util'): V8UtilBinding;
     electronBinding(name: 'app'): { app: Electron.App, App: Function };
     electronBinding(name: 'command_line'): Electron.CommandLine;