Add new-webview specs

spec/static/main.js

@@ -250,6 +250,16 @@ ipcMain.on('prevent-next-new-window', (event, id) => {
   webContents.fromId(id).once('new-window', event => event.preventDefault())
 })
 
+ipcMain.on('prevent-next-new-webview', (event) => {
+  event.sender.once('new-webview', event => event.preventDefault())
+})
+
+ipcMain.on('disable-node-on-next-new-webview', (event, id) => {
+  event.sender.once('new-webview', (event, guest, webPreferences) => {
+    webPreferences.nodeIntegration = false
+  })
+})
+
 ipcMain.on('try-emit-web-contents-event', (event, id, eventName) => {
   const consoleWarn = console.warn
   let warningMessage = null

spec/webview-spec.js

@@ -2,7 +2,7 @@ const assert = require('assert')
 const path = require('path')
 const http = require('http')
 const url = require('url')
-const {remote} = require('electron')
+const {ipcRenderer, remote} = require('electron')
 const {app, session, getGuestWebContents, ipcMain, BrowserWindow, webContents} = remote
 const {closeWindow} = require('./window-helpers')
 
@@ -1100,6 +1100,31 @@ describe('<webview> tag', function () {
     w.loadURL('file://' + fixtures + '/pages/webview-visibilitychange.html')
   })
 
+  describe('new-webview event', () => {
+    it('supports changing the web preferences', (done) => {
+      ipcRenderer.send('disable-node-on-next-new-webview')
+      webview.addEventListener('console-message', (event) => {
+        assert.equal(event.message, 'undefined undefined undefined undefined')
+        done()
+      })
+      webview.setAttribute('nodeintegration', 'yes')
+      webview.src = 'file://' + fixtures + '/pages/c.html'
+      document.body.appendChild(webview)
+    })
+
+    it('supports preventing a webview from being created', (done) => {
+      ipcRenderer.send('prevent-next-new-webview')
+      webview.addEventListener('destroyed', () => {
+        done()
+      })
+      webview.src = 'file://' + fixtures + '/pages/c.html'
+      document.body.appendChild(webview)
+    })
+  })
+
+  it('emits a new-webview event when first attached that ', () => {
+  })
+
   it('loads devtools extensions registered on the parent window', function (done) {
     w = new BrowserWindow({
       show: false