使用Electron（macOS）通过深度链接打开应用程序并传递参数

Question

我想使用Electron（macOS）打开应用程序并通过深度链接传递参数。

“electron deep linking mac win”项目位于GitHub上。

编辑了package.json，遵循“electron builder”快速安装指南生成mac安装程序：

{
  "name": "electron-deep-linking-osx",
  "version": "1.0.0",
  "description": "A minimal Electron application with Deep Linking (OSX)",
  "main": "main.js",
  "scripts": {
    "start": "electron .",
    "pack": "build --dir",
    "dist": "build"
  },
  "repository": "https://github.com/oikonomopo/electron-deep-linking-osx",
  "keywords": [
    "Electron",
    "osx",
    "deep-linking"
  ],
  "author": "GitHub",
  "license": "CC0-1.0",
  "devDependencies": {
    "electron": "1.6.6",
    "electron-builder": "17.1.2"
  },
  "build": {
    "appId": "your.id",
    "mac": {
      "category": "your.app.category.type"
    },
    "protocols": {
      "name": "myApp",
      "schemes": ["myApp"]
    }
  }
}

编辑main.js，添加代码以注册myappurl方案协议，侦听“打开url”事件并记录参数：

const electron = require('electron')
// Module to control application life.
const app = electron.app
// Module to create native browser window.
const BrowserWindow = electron.BrowserWindow
// Module with utilities for working with file and directory paths.
const path = require('path')
// Module with utilities for URL resolution and parsing.
const url = require('url')
// Module to display native system dialogs for opening and saving files, alerting, etc.
const dialog = electron.dialog

// 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.
let mainWindow

function createWindow () {
  // Create the browser window.
  mainWindow = new BrowserWindow({width: 800, height: 600})

  // and load the index.html of the app.
  mainWindow.loadURL(url.format({
    pathname: path.join(__dirname, 'index.html'),
    protocol: 'file:',
    slashes: true
  }))

  // 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
  })
}

// 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 OS X 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 OS X 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.

// The setAsDefaultProtocolClient only works on packaged versions of the application
app.setAsDefaultProtocolClient('myApp')

// Protocol handler for osx
app.on('open-url', function (event, url) {
  event.preventDefault();
  log("open-url event: " + url)

  dialog.showErrorBox('open-url', `You arrived from: ${url}`)
})

// Log both at terminal and at browser
function log(s) {
    console.log(s)
    if (mainWindow && mainWindow.webContents) {
        mainWindow.webContents.executeJavaScript(`console.log("${s}")`)
    }
}

走向生活的步骤：-）

# Clone this repository
git clone https://github.com/oikonomopo/electron-deep-linking-mac-win.git
# Go into the repository
cd electron-deep-linking-mac-win
# Install dependencies
npm install
# Run the app
npm start
# Produce installer
npm run dist

运行安装程序（电子-深-链接-mac-win/dist/electron-quick-start-1.0.0.dmg）后，我尝试打开电子-深-链接-os应用程序与深链接，输入myapp：//参数在Safari地址栏。

>

如果应用程序打开，它会激活，我可以看到对话框和日志openurl事件：myapp://param！

若应用程序关闭，它会打开，对话框会显示正确的url，但不会登录到开发人员控制台！

为什么withdialogmoduleurl显示正确，但未登录到开发人员控制台？如何记录它？

仅使用electron builder（使用electron packager）寻找解决方案！

Answer 1

您应该在中设置打开url事件，该事件将根据文档完成启动回调。我在打开文件时也有类似的奇怪行为，直到它在将完成启动回调时被设置。

您注意到，在您链接到的示例中，他们是这样做的。

虽然它提到将完成启动，它应该提到这在open-url和open-file文档，因为它很容易错过。

app.on('will-finish-launching', () => {
  // Protocol handler for osx
  app.on('open-url', (event, url) => {
    event.preventDefault();
    log("open-url event: " + url)
  })
});

Answer 2

已解决macOS和win32（GitHub上更新的项目'电子-深-链接-苹果-赢'）。

package.json：

{
  "name": "electron-deeplinking-macos-win32",
  "version": "0.0.1",
  "description": "Minimal Electron application with deep inking (macOS/win32)",
  "main": "main.js",
  "scripts": {
    "start": "electron .",
    "pack": "build --dir",
    "dist": "build"
  },
  "repository": "https://github.com/oikonomopo/electron-deep-linking-osx",
  "author": "oikonomopo",
  "license": "CC0-1.0",
  "devDependencies": {
    "electron": "1.6.6",
    "electron-builder": "17.1.2"
  },
  "build": {
    "appId": "oikonomopo.electron-deeplinking-macos-win32",
    "protocols": {
      "name": "electron-deep-linking",
      "schemes": ["myapp"]
    },
    "mac": {
      "category": "public.app-category.Reference"
    },
    "win": {
    }
  }
}

main.js：

const {app, BrowserWindow} = require('electron')
// Module with utilities for working with file and directory paths.
const path = require('path')
// Module with utilities for URL resolution and parsing.
const url = require('url')

// 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.
let mainWindow

// Deep linked url
let deeplinkingUrl

// Force Single Instance Application
const shouldQuit = app.makeSingleInstance((argv, workingDirectory) => {
  // Someone tried to run a second instance, we should focus our window.

  // Protocol handler for win32
  // argv: An array of the second instance’s (command line / deep linked) arguments
  if (process.platform == 'win32') {
    // Keep only command line / deep linked arguments
    deeplinkingUrl = argv.slice(1)
  }
  logEverywhere("app.makeSingleInstance# " + deeplinkingUrl)

  if (win) {
    if (win.isMinimized()) win.restore()
        win.focus()
  }
})
if (shouldQuit) {
    app.quit()
    return
}

function createWindow () {
  // Create the browser window.
  mainWindow = new BrowserWindow({width: 800, height: 600})

  // and load the index.html of the app.
  mainWindow.loadURL(url.format({
    pathname: path.join(__dirname, 'index.html'),
    protocol: 'file:',
    slashes: true
  }))

  // Open the DevTools.
  mainWindow.webContents.openDevTools()

  // Protocol handler for win32
  if (process.platform == 'win32') {
    // Keep only command line / deep linked arguments
    deeplinkingUrl = process.argv.slice(1)
  }
  logEverywhere("createWindow# " + deeplinkingUrl)

  // 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
  })
}

// 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 OS X 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 OS X 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()
  }
})

// Define custom protocol handler. 
// Deep linking works on packaged versions of the application!
app.setAsDefaultProtocolClient('myapp')

// Protocol handler for osx
app.on('open-url', function (event, url) {
  event.preventDefault()
  deeplinkingUrl = url
  logEverywhere("open-url# " + deeplinkingUrl)
})

// Log both at dev console and at running node console instance
function logEverywhere(s) {
    console.log(s)
    if (mainWindow && mainWindow.webContents) {
        mainWindow.webContents.executeJavaScript(`console.log("${s}")`)
    }
}

main.js代码说明：

>

在macOS上，您需要侦听app.open-url事件，而在Windows上，url应该在process.argv（主进程）中可用。

>

在win32平台上，它与其他参数一起保存在process.argv。要只获取提供的url，深度链接Url=argv.slice（1）。（请参见win32的//协议处理程序）

在app.makeSingleInstance方法中，我们检查我们是哪个平台，并相应地设置深度链接URL！如果我们在win32平台上，url位于回调的Argv变量处，否则macOS上应该已经在'open-url'事件中设置了！（参见//强制单实例应用程序）