ahkohd/index.html

## index.html
<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>Hello World!</title>
    <link rel="stylesheet" type="text/css" href="./styles.css">
  </head>
  <body>
    <h1>Fade In/Out Window Example</h1>

    <div>
      <button id="fade-in-out">Fade Out / In</button>
    </div>

    <script>
      // You can also require other files to run in this process
      require('./renderer.js')
    </script>
  </body>
</html>

## main.js
// Modules to control application life and create native browser window
const {app, BrowserWindow} = require('electron')

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

  // and load the index.html of the app.
  mainWindow.loadFile('index.html')

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

// 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 (BrowserWindow.getAllWindows().length === 0) {
    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.

## preload.js
// Empty

## renderer.js
const remote = require('electron').remote

const fadeWindowOut =  (
    _window,
    step = 0.1,
    fadeEveryXSeconds = 10
  ) =>  {
    let opacity = _window.getOpacity();
    const interval = setInterval(() => {
      if (opacity <= 0) window.clearInterval(interval);
      _window.setOpacity(opacity);
      opacity -= step;
    }, fadeEveryXSeconds);
    return interval;
  }

const fadeWindowIn = (
    _window,
    step = 0.1,
    fadeEveryXSeconds = 10
  )  => {
    let opacity = _window.getOpacity();
    const interval = setInterval(() => {
      if (opacity >= 1) window.clearInterval(interval);
      _window.setOpacity(opacity);
      opacity += step;
    }, fadeEveryXSeconds);
    return interval;
  }


document.getElementById('fade-in-out').onclick = () => {
  // fade out this window...
   fadeWindowOut(remote.getCurrentWindow(), 0.1, 2);

   // 1000 miliseconds later, fade it in...
   setTimeout(() => fadeWindowIn(remote.getCurrentWindow(), 0.1, 2), 1000)
}

## styles.css
/* Empty */
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="UTF-8">
	<title>Hello World!</title>
	<link rel="stylesheet" type="text/css" href="./styles.css">
	</head>
	<body>
	<h1>Fade In/Out Window Example</h1>

	<div>
	<button id="fade-in-out">Fade Out / In</button>
	</div>

	<script>
	// You can also require other files to run in this process
	require('./renderer.js')
	</script>
	</body>
	</html>
	// Modules to control application life and create native browser window
	const {app, BrowserWindow} = require('electron')

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

	// and load the index.html of the app.
	mainWindow.loadFile('index.html')

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

	// 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 (BrowserWindow.getAllWindows().length === 0) {
	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.
	const remote = require('electron').remote

	const fadeWindowOut = (
	_window,
	step = 0.1,
	fadeEveryXSeconds = 10
	) => {
	let opacity = _window.getOpacity();
	const interval = setInterval(() => {
	if (opacity <= 0) window.clearInterval(interval);
	_window.setOpacity(opacity);
	opacity -= step;
	}, fadeEveryXSeconds);
	return interval;
	}

	const fadeWindowIn = (
	_window,
	step = 0.1,
	fadeEveryXSeconds = 10
	) => {
	let opacity = _window.getOpacity();
	const interval = setInterval(() => {
	if (opacity >= 1) window.clearInterval(interval);
	_window.setOpacity(opacity);
	opacity += step;
	}, fadeEveryXSeconds);
	return interval;
	}



	document.getElementById('fade-in-out').onclick = () => {
	// fade out this window...
	fadeWindowOut(remote.getCurrentWindow(), 0.1, 2);

	// 1000 miliseconds later, fade it in...
	setTimeout(() => fadeWindowIn(remote.getCurrentWindow(), 0.1, 2), 1000)
	}