問題描述

我想要一個在主進程中定義的菜單，用于在原子/電子應用程序的當前瀏覽器窗口中調用 JS 代碼.

I want a menu, defined in the main process to call JS code inside the current browser window in an atom/electron application.

從瀏覽器窗口獲取主進程全局變量

Getting main process globals form the browser window is

const remote = require('remote')
const foo    = remote.getGlobal('foo')

主進程的等價物是什么(又名獲取當前窗口全局變量).這就是我想用偽代碼做的事情

What is the equivalent for the main process (aka get current window globals). This is what I want to do in pseudo-code

// JS inside main process
const BrowserWindow = require('browser-window')
//...
// Inside the menu callback
let window    = BrowserWindow.getFocusedWindow()
let commander = window.global('commander') /// <---- PSEUDO-CODE !!!
commander.handleCommand('File.Save')

推薦答案

這里 是對您對 api 中 webContents 進程的評論的引用，位于遙控器下的注意:"中.

Here is a reference to your comment about the webContents process in the api, in the "Note:" under remotes.

但是，如果你只是想觸發一個函數，你也可以使用 webContents.send() 和 ipc(main process) 進程觸發相應的代碼運行.像這樣的...

However, if you just want to trigger a function, you could also use the webContents.send() and ipc(main process) processes to trigger the appropriate code to run. Something like this...

// JS inside main process
const window = require('electron').BrowserWindow;

ipc.on('menuItem-selected', function(){
    let focusedWindow    = window.getFocusedWindow();
    focusedWindow.webContents.send('file-save');
});

// Inside the menu callback
require('ipc').on('file-save', function() {
  // File save function call here
});

更新:

對于 Electron 0.35.0 及以上版本，ipc api 更改為:

Update:

For Electron version 0.35.0 and above, the ipc api changed to the following:

// In main process.
const ipcMain = require('electron').ipcMain;

// In renderer process (web page).
const ipcRenderer = require('electron').ipcRenderer;

這篇關于如何從電子的主進程訪問 BrowserWindow Javascript 全局?的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！