javascript - 按下 "esc"时退出全屏(使用带有 electron 的 javascript)

Question

我正在开发一个应用程序(使用 Electron )，我希望用户能够在按“esc”时退出全屏模式。我尝试了不同的方法，都是徒劳的。以下是在新浏览器窗口中以全屏模式启动应用程序并显示 HTML/CSS 内容的代码:

    'use strict';

const electron = require('electron');
// Module to control application life.
const app = electron.app;
// Module to create native browser window.
const BrowserWindow = electron.BrowserWindow;

// 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({fullscreen:true});

  // and load the index.html of the app.
  mainWindow.loadURL('file://' + __dirname + '/index.html');

  // 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.
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();
  }
});

这是我试图添加到此代码中以能够退出全屏的内容，但它不起作用:

app.on('keydown', function(e){
    if(e.keyCode === 27){
      app.exitFullscreen();
    }
});

我也尝试过“cancelFullscreen”。和“全屏:假”。不工作。

非常感谢您的关注!

Answer 1

这很容易。在渲染过程中添加一个键盘监听器，然后通过remote模块操作窗口。

    const remote = require("electron").remote;

    document.addEventListener("keydown", event => {

        switch (event.key) {
            case "Escape":
                if (remote.getCurrentWindow().isFullScreen()) {
                    remote.getCurrentWindow().setFullScreen(false);
                }
                break;
             }
    });