etcher/lib/gui/etcher.js
Jonas Hermsmeier d91d957777
fix(gui): Disable throttling timers when in background
This disables Electron throttling timers when not in the foreground.

Change-Type: patch
2018-03-01 20:04:34 +01:00

83 lines
2.7 KiB
JavaScript

/*
* Copyright 2016 resin.io
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
'use strict'
const electron = require('electron')
const path = require('path')
const EXIT_CODES = require('../shared/exit-codes')
const buildWindowMenu = require('./menu')
let mainWindow = null
electron.app.on('window-all-closed', electron.app.quit)
// Sending a `SIGINT` (e.g: Ctrl-C) to an Electron app that registers
// a `beforeunload` window event handler results in a disconnected white
// browser window in GNU/Linux and macOS.
// The `before-quit` Electron event is triggered in `SIGINT`, so we can
// make use of it to ensure the browser window is completely destroyed.
// See https://github.com/electron/electron/issues/5273
electron.app.on('before-quit', () => {
process.exit(EXIT_CODES.SUCCESS)
})
electron.app.on('ready', () => {
mainWindow = new electron.BrowserWindow({
width: 800,
height: 380,
useContentSize: true,
show: false,
resizable: false,
maximizable: false,
fullscreen: false,
fullscreenable: false,
autoHideMenuBar: true,
titleBarStyle: 'hidden-inset',
icon: path.join(__dirname, '..', '..', 'assets', 'icon.png'),
webPreferences: {
backgroundThrottling: false
}
})
buildWindowMenu(mainWindow)
// Prevent flash of white when starting the application
mainWindow.on('ready-to-show', mainWindow.show)
mainWindow.on('closed', () => {
mainWindow = null
})
// Prevent the user from being allowed to zoom-in the application.
//
// This function should be called on the renderer process. We use
// `executeJavaScript()` rather than moving this to a file in the
// renderer process for convenience, since we have all other
// electron desktop experience fixes in this file.
//
// See https://github.com/electron/electron/issues/3609
mainWindow.webContents.executeJavaScript('require(\'electron\').webFrame.setZoomLevelLimits(1, 1);')
// Prevent external resources from being loaded (like images)
// when dropping them on the WebView.
// See https://github.com/electron/electron/issues/5919
mainWindow.webContents.on('will-navigate', (event) => {
event.preventDefault()
})
mainWindow.loadURL(`file://${path.join(__dirname, 'app', 'index.html')}`)
})