arduino · murilopolese · Apr 17, 2024 · Apr 16, 2024 · Apr 16, 2024 · Apr 17, 2024
diff --git a/README.md b/README.md
@@ -33,9 +33,9 @@ This project is sponsored by Arduino, based on original work by [Murilo Polese](
 
 ## Technical overview
 
-Arduino Lab for MicroPython is an [Electron](https://www.electronjs.org/) app that has its main purpose to communicate over serial with a microprocessor running [MicroPython](https://micropython.org/). All Electron code is at `/index.js`.
+Arduino Lab for MicroPython is an [Electron](https://www.electronjs.org/) app that has its main purpose to communicate over serial with a microprocessor running [MicroPython](https://micropython.org/). The Electron code is at `/index.js` and inside the folder `/backend`.
 
-All operations over serial are abstracted and packaged on `/micropython.js` which is an attempt of porting `pyboard.py`. The port has its [own repository](https://github.com/arduino/micropython.js) but for the sake of simplicity and transparency, `micropython.js` is committed as source code.
+All operations over serial are abstracted and packaged on `micropython.js` which is an attempt of porting `pyboard.py`. The module has its [own repository](https://github.com/arduino/micropython.js) with documentation and examples of usage.
 
 The User Interface (UI) source code stays inside `/ui` folder and is completely independent of the Electron code.
 
@@ -49,6 +49,7 @@ At the root of the repository you will find:
 - `/build_resources`: Icons and other assets used during the build process.
 - `/ui`: Available user interfaces.
 - `/index.js`: Main Electron code.
+- `/backend`: Electron helpers.
 - `/preload.js`: Creates Disk, Serial and Window APIs on Electron's main process and exposes it to Electron's renderer process (context bridge).
 
 ## User interface

diff --git a/backend/helpers.js b/backend/helpers.js
@@ -0,0 +1,62 @@
+const { dialog } = require('electron')
+const fs = require('fs')
+const path = require('path')
+
+async function openFolderDialog(win) {
+  // https://stackoverflow.com/questions/46027287/electron-open-folder-dialog
+  let dir = await dialog.showOpenDialog(win, { properties: [ 'openDirectory' ] })
+  return dir.filePaths[0] || null
+}
+
+function listFolder(folder) {
+  files = fs.readdirSync(path.resolve(folder))
+  // Filter out directories
+  files = files.filter(f => {
+    let filePath = path.resolve(folder, f)
+    return !fs.lstatSync(filePath).isDirectory()
+  })
+  return files
+}
+
+function ilistFolder(folder) {
+  let files = fs.readdirSync(path.resolve(folder))
+  files = files.filter(f => {
+    let filePath = path.resolve(folder, f)
+    return !fs.lstatSync(filePath).isSymbolicLink()
+  })
+  files = files.map(f => {
+    let filePath = path.resolve(folder, f)
+    return {
+      path: f,
+      type: fs.lstatSync(filePath).isDirectory() ? 'folder' : 'file'
+    }
+  })
+  // Filter out dot files
+  files = files.filter(f => f.path.indexOf('.') !== 0)
+  return files
+}
+
+function getAllFiles(dirPath, arrayOfFiles) {
+  // https://coderrocketfuel.com/article/recursively-list-all-the-files-in-a-directory-using-node-js
+  files = ilistFolder(dirPath)
+  arrayOfFiles = arrayOfFiles || []
+  files.forEach(function(file) {
+    const p = path.join(dirPath, file.path)
+    const stat = fs.statSync(p)
+    arrayOfFiles.push({
+      path: p,
+      type: stat.isDirectory() ? 'folder' : 'file'
+    })
+    if (stat.isDirectory()) {
+      arrayOfFiles = getAllFiles(p, arrayOfFiles)
+    }
+  })
+  return arrayOfFiles
+}
+
+module.exports = {
+  openFolderDialog,
+  listFolder,
+  ilistFolder,
+  getAllFiles
+}
diff --git a/backend/ipc.js b/backend/ipc.js
@@ -0,0 +1,110 @@
+const fs = require('fs')
+const {
+  openFolderDialog,
+  listFolder,
+  ilistFolder,
+  getAllFiles
+} = require('./helpers.js')
+
+module.exports = function registerIPCHandlers(win, ipcMain) {
+  ipcMain.handle('open-folder', async (event) => {
+    console.log('ipcMain', 'open-folder')
+    const folder = await openFolderDialog(win)
+    let files = []
+    if (folder) {
+      files = listFolder(folder)
+    }
+    return { folder, files }
+  })
+
+  ipcMain.handle('list-files', async (event, folder) => {
+    console.log('ipcMain', 'list-files', folder)
+    if (!folder) return []
+    return listFolder(folder)
+  })
+
+  ipcMain.handle('ilist-files', async (event, folder) => {
+    console.log('ipcMain', 'ilist-files', folder)
+    if (!folder) return []
+    return ilistFolder(folder)
+  })
+
+  ipcMain.handle('ilist-all-files', (event, folder) => {
+    console.log('ipcMain', 'ilist-all-files', folder)
+    if (!folder) return []
+    return getAllFiles(folder)
+  })
+
+  ipcMain.handle('load-file', (event, filePath) => {
+    console.log('ipcMain', 'load-file', filePath)
+    let content = fs.readFileSync(filePath)
+    return content
+  })
+
+  ipcMain.handle('save-file', (event, filePath, content) => {
+    console.log('ipcMain', 'save-file', filePath, content)
+    fs.writeFileSync(filePath, content, 'utf8')
+    return true
+  })
+
+  ipcMain.handle('update-folder', (event, folder) => {
+    console.log('ipcMain', 'update-folder', folder)
+    let files = fs.readdirSync(path.resolve(folder))
+    // Filter out directories
+    files = files.filter(f => {
+      let filePath = path.resolve(folder, f)
+      return !fs.lstatSync(filePath).isDirectory()
+    })
+    return { folder, files }
+  })
+
+  ipcMain.handle('remove-file', (event, filePath) => {
+    console.log('ipcMain', 'remove-file', filePath)
+    fs.unlinkSync(filePath)
+    return true
+  })
+
+  ipcMain.handle('rename-file', (event, filePath, newFilePath) => {
+    console.log('ipcMain', 'rename-file', filePath, newFilePath)
+    fs.renameSync(filePath, newFilePath)
+    return true
+  })
+
+  ipcMain.handle('create-folder', (event, folderPath) => {
+    console.log('ipcMain', 'create-folder', folderPath)
+    try {
+      fs.mkdirSync(folderPath, { recursive: true })
+    } catch(e) {
+      console.log('error', e)
+      return false
+    }
+    return true
+  })
+
+  ipcMain.handle('remove-folder', (event, folderPath) => {
+    console.log('ipcMain', 'remove-folder', folderPath)
+    fs.rmdirSync(folderPath, { recursive: true, force: true })
+    return true
+  })
+
+  ipcMain.handle('file-exists', (event, filePath) => {
+    console.log('ipcMain', 'file-exists', filePath)
+    try {
+      fs.accessSync(filePath, fs.constants.F_OK)
+      return true
+    } catch(err) {
+      return false
+    }
+  })
+  // WINDOW MANAGEMENT
+
+  ipcMain.handle('set-window-size', (event, minWidth, minHeight) => {
+    console.log('ipcMain', 'set-window-size', minWidth, minHeight)
+    if (!win) {
+      console.log('No window defined')
+      return false
+    }
+
+    win.setMinimumSize(minWidth, minHeight)
+  })
+}
diff --git a/backend/menu.js b/backend/menu.js
@@ -0,0 +1,143 @@
+const { app, Menu } = require('electron')
+const path = require('path')
+const openAboutWindow = require('about-window').default
+
+module.exports = function registerMenu(win) {
+  const isMac = process.platform === 'darwin'
+  const isDev = !app.isPackaged
+  const template = [
+    ...(isMac ? [{
+      label: app.name,
+      submenu: [
+        { role: 'about'},
+        { type: 'separator' },
+        { role: 'services' },
+        { type: 'separator' },
+        { role: 'hide' },
+        { role: 'hideOthers' },
+        { role: 'unhide' },
+        { type: 'separator' },
+        { role: 'quit' }
+      ]
+    }] : []),
+    {
+      label: 'File',
+      submenu: [
+        isMac ? { role: 'close' } : { role: 'quit' }
+      ]
+    },
+    {
+      label: 'Edit',
+      submenu: [
+        { role: 'undo' },
+        { role: 'redo' },
+        { type: 'separator' },
+        { role: 'cut' },
+        { role: 'copy' },
+        { role: 'paste' },
+        ...(isMac ? [
+          { role: 'pasteAndMatchStyle' },
+          { role: 'selectAll' },
+          { type: 'separator' },
+          {
+            label: 'Speech',
+            submenu: [
+              { role: 'startSpeaking' },
+              { role: 'stopSpeaking' }
+            ]
+          }
+        ] : [
+          { type: 'separator' },
+          { role: 'selectAll' }
+        ])
+      ]
+    },
+    {
+      label: 'View',
+      submenu: [
+        { role: 'reload' },
+        { type: 'separator' },
+        { role: 'resetZoom' },
+        { role: 'zoomIn' },
+        { role: 'zoomOut' },
+        { type: 'separator' },
+        { role: 'togglefullscreen' },
+        ...(isDev ? [
+          { type: 'separator' },
+          { role: 'toggleDevTools' },
+        ]:[
+        ])
+      ]
+    },
+    {
+      label: 'Window',
+      submenu: [
+        { role: 'minimize' },
+        { role: 'zoom' },
+        ...(isMac ? [
+          { type: 'separator' },
+          { role: 'front' },
+          { type: 'separator' },
+          { role: 'window' }
+        ] : [
+          { role: 'close' }
+        ])
+      ]
+    },
+    {
+      role: 'help',
+      submenu: [
+        {
+          label: 'Learn More',
+          click: async () => {
+            const { shell } = require('electron')
+            await shell.openExternal('https://github.com/arduino/lab-micropython-editor')
+          }
+        },
+        {
+          label: 'Report an issue',
+          click: async () => {
+            const { shell } = require('electron')
+            await shell.openExternal('https://github.com/arduino/lab-micropython-editor/issues')
+          }
+        },
+        {
+          label:'Info about this app',
+          click: () => {
+              openAboutWindow({
+                  icon_path: path.resolve(__dirname, '../ui/arduino/media/about_image.png'),
+                  css_path: path.resolve(__dirname, '../ui/arduino/views/about.css'),
+                  // about_page_dir: path.resolve(__dirname, '../ui/arduino/views/'),
+                  copyright: '© Arduino SA 2022',
+                  package_json_dir: path.resolve(__dirname, '..'),
+                  bug_report_url: "https://github.com/arduino/lab-micropython-editor/issues",
+                  bug_link_text: "report an issue",
+                  homepage: "https://labs.arduino.cc",
+                  use_version_info: false,
+                  win_options: {
+                      parent: win,
+                      modal: true,
+                  },
+                  show_close_button: 'Close',
+              })
+            }
+        },
+      ]
+    }
+  ]
+
+  const menu = Menu.buildFromTemplate(template)
+
+  app.setAboutPanelOptions({
+    applicationName: app.name,
+    applicationVersion: app.getVersion(),
+    copyright: app.copyright,
+    credits: '(See "Info about this app" in the Help menu)',
+    authors: ['Arduino'],
+    website: 'https://arduino.cc',
+    iconPath: path.join(__dirname, '../assets/image.png'),
+  })
+
+  Menu.setApplicationMenu(menu)
+
+}