electron/lib/browser/api/app.ts

144 lines
4.3 KiB
TypeScript

import * as fs from 'fs'
import * as path from 'path'
import { deprecate, Menu } from 'electron'
import { EventEmitter } from 'events'
const bindings = process.electronBinding('app')
const commandLine = process.electronBinding('command_line')
const { app, App } = bindings
// Only one app object permitted.
export default app
let dockMenu: Electron.Menu | null = null
// App is an EventEmitter.
Object.setPrototypeOf(App.prototype, EventEmitter.prototype)
EventEmitter.call(app as any)
// Properties.
const nativeASGetter = app.isAccessibilitySupportEnabled
const nativeASSetter = app.setAccessibilitySupportEnabled
Object.defineProperty(App.prototype, 'accessibilitySupportEnabled', {
get: () => nativeASGetter.call(app),
set: (enabled) => nativeASSetter.call(app, enabled)
})
const nativeBCGetter = app.getBadgeCount
const nativeBCSetter = app.setBadgeCount
Object.defineProperty(App.prototype, 'badgeCount', {
get: () => nativeBCGetter.call(app),
set: (count) => nativeBCSetter.call(app, count)
})
const nativeNGetter = app.getName
const nativeNSetter = app.setName
Object.defineProperty(App.prototype, 'name', {
get: () => nativeNGetter.call(app),
set: (name) => nativeNSetter.call(app, name)
})
Object.assign(app, {
commandLine: {
hasSwitch: (theSwitch: string) => commandLine.hasSwitch(String(theSwitch)),
getSwitchValue: (theSwitch: string) => commandLine.getSwitchValue(String(theSwitch)),
appendSwitch: (theSwitch: string, value?: string) => commandLine.appendSwitch(String(theSwitch), typeof value === 'undefined' ? value : String(value)),
appendArgument: (arg: string) => commandLine.appendArgument(String(arg))
} as Electron.CommandLine
})
// we define this here because it'd be overly complicated to
// do in native land
Object.defineProperty(app, 'applicationMenu', {
get () {
return Menu.getApplicationMenu()
},
set (menu: Electron.Menu | null) {
return Menu.setApplicationMenu(menu)
}
})
App.prototype.isPackaged = (() => {
const execFile = path.basename(process.execPath).toLowerCase()
if (process.platform === 'win32') {
return execFile !== 'electron.exe'
}
return execFile !== 'electron'
})()
app._setDefaultAppPaths = (packagePath) => {
// Set the user path according to application's name.
app.setPath('userData', path.join(app.getPath('appData'), app.name!))
app.setPath('userCache', path.join(app.getPath('cache'), app.name!))
app.setAppPath(packagePath)
// Add support for --user-data-dir=
if (app.commandLine.hasSwitch('user-data-dir')) {
const userDataDir = app.commandLine.getSwitchValue('user-data-dir')
if (path.isAbsolute(userDataDir)) app.setPath('userData', userDataDir)
}
}
if (process.platform === 'darwin') {
const setDockMenu = app.dock!.setMenu
app.dock!.setMenu = (menu) => {
dockMenu = menu
setDockMenu(menu)
}
app.dock!.getMenu = () => dockMenu
}
if (process.platform === 'linux') {
const patternVmRSS = /^VmRSS:\s*(\d+) kB$/m
const patternVmHWM = /^VmHWM:\s*(\d+) kB$/m
const getStatus = (pid: number) => {
try {
return fs.readFileSync(`/proc/${pid}/status`, 'utf8')
} catch {
return ''
}
}
const getEntry = (file: string, pattern: RegExp) => {
const match = file.match(pattern)
return match ? parseInt(match[1], 10) : 0
}
const getProcessMemoryInfo = (pid: number) => {
const file = getStatus(pid)
return {
workingSetSize: getEntry(file, patternVmRSS),
peakWorkingSetSize: getEntry(file, patternVmHWM)
}
}
const nativeFn = app.getAppMetrics
app.getAppMetrics = () => {
const metrics = nativeFn.call(app)
for (const metric of metrics) {
metric.memory = getProcessMemoryInfo(metric.pid)
}
return metrics
}
}
// Routes the events to webContents.
const events = ['certificate-error', 'select-client-certificate']
for (const name of events) {
app.on(name as 'certificate-error', (event, webContents, ...args: any[]) => {
webContents.emit(name, event, ...args)
})
}
// Deprecate allowRendererProcessReuse but only if they set it to false, no need to log if
// they are setting it to true
deprecate.removeProperty(app, 'allowRendererProcessReuse', [false])
// Wrappers for native classes.
const { DownloadItem } = process.electronBinding('download_item')
Object.setPrototypeOf(DownloadItem.prototype, EventEmitter.prototype)