Я пытаюсь прочитать файлы из каталога, используя модуль fs, и отобразить это в div с id displayfiles в приложении Electron.Я получаю сообщение об ошибке:
Cannot read property 'send' of undefined
Вот мой renderer.js
// This file is required by the index.html file and will
// be executed in the renderer process for that window.
// All of the Node.js APIs are available in this process.
const electron = require('electron');
const dialog = electron.dialog;
const fs = require('fs');
const remote = require ("electron").remote;
const ipcRenderer = electron.ipcRenderer;
const template=[
{
label: 'File',
submenu: [
{
label:'Open USB',
click () { dialog.showOpenDialog( {
properties: ['openDirectory']
},directorySelectorCallback)
}
},
{
label:'Exit',
click() {
}
},
]
},
{
label: 'Edit',
submenu: [
{role: 'undo'},
{role: 'redo'},
{type: 'separator'},
{role: 'cut'},
{role: 'copy'},
{role: 'paste'},
{role: 'pasteandmatchstyle'},
{role: 'delete'},
{role: 'selectall'}
]
},
{
label: 'View',
submenu: [
{role: 'reload'},
{role: 'forcereload'},
{role: 'toggledevtools'},
{type: 'separator'},
{role: 'resetzoom'},
{role: 'zoomin'},
{role: 'zoomout'},
{type: 'separator'},
{role: 'togglefullscreen'}
]
},
{
role: 'window',
submenu: [
{role: 'minimize'},
{role: 'close'}
]
},
]
function directorySelectorCallback(filenames) {
if (filenames && filenames.length > 0) {
console.log(filenames[0]);
fs.readdir(filenames[0], (err, files) => {
'use strict';
if (err) throw err;
//the files parameter is an array of the files and folders in the path we passed. So we loop through the array, printing each file and folder
for (let file of files) {
console.log(file);
ipcRenderer.send('add-file', 'an-document.getElementById(\'display-files\').innerHTML += `<li>${file}</li>`;')
}
});
}
}
module.exports.template=template;
Вот мой код для main.js:
// Modules to control application life and create native browser window
const electron = require('electron')
const {app, BrowserWindow,Menu,ipcMain} = require('electron')
const menuTemplate=require('./renderer.js').template
// Keep a global reference of the window object, if you don't, the window will
// be closed automatically when the JavaScript object is garbage collected.
var mainWindow=null;
function createWindow () {
// Create the browser window.
mainWindow = new BrowserWindow({width: 800, height: 600,icon: __dirname + '/Rexnord.ico'})
// and load the index.html of the app.
mainWindow.loadFile('index.html')
// Open the DevTools.
mainWindow.webContents.openDevTools()
// Emitted when the window is closed.
mainWindow.on('closed', function () {
// Dereference the window object, usually you would store windows
// in an array if your app supports multi windows, this is the time
// when you should delete the corresponding element.
mainWindow = null
})
let menu = Menu.buildFromTemplate(menuTemplate)
Menu.setApplicationMenu(menu);
}
ipcMain.on('add-file', (event, arg)=> {
mainWindow.webContents.executeJavaScript(arg);
})
// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.on('ready', createWindow)
// Quit when all windows are closed.
app.on('window-all-closed', function () {
// On macOS it is common for applications and their menu bar
// to stay active until the user quits explicitly with Cmd + Q
if (process.platform !== 'darwin') {
app.quit()
}
})
app.on('activate', function () {
// On macOS it's common to re-create a window in the app when the
// dock icon is clicked and there are no other windows open.
if (mainWindow === null) {
createWindow()
}
})
// In this file you can include the rest of your app's specific main process
// code. You can also put them in separate files and require them here.
Я пытаюсь подключить модули ipc между renderer.js и файлом main.js.Из того, что я прочитал, я должен иметь возможность для модуля ipcrenderer отправлять сообщение главному процессу через канал, но я продолжал получать эту ошибку.Может кто-нибудь сказать мне, что я делаю не так?