javascript - Electron setTimeout 在渲染器进程中返回数字而不是 Timeout 对象

Question

我注意到在Electron的渲染器进程中，setTimeout Node 函数返回一个数字(整数)而不是超时对象。

在主进程中，它返回预期的Timeout对象

我使用最新版本(即4.0.5)。

.

渲染器进程的控制台:

主进程控制台:

npm start

> electron-timer-bug@0.0.1 start /home/doom/Documents/projets/testElectron/electron-timer-bug
> electron .

/home/doom/Documents/projets/testElectron/electron-timer-bug/node_modules/electron/dist/electron: /lib/x86_64-linux-gnu/libdbus-1.so.3: no version information available (required by /home/doom/Documents/projets/testElectron/electron-timer-bug/node_modules/electron/dist/electron)
/home/doom/Documents/projets/testElectron/electron-timer-bug/node_modules/electron/dist/electron: /lib/x86_64-linux-gnu/libdbus-1.so.3: no version information available (required by /home/doom/Documents/projets/testElectron/electron-timer-bug/node_modules/electron/dist/electron)
Fontconfig warning: "/etc/fonts/fonts.conf", line 86: unknown element "blank"
mainWatchdog :  Timeout {
  _called: false,
  _idleTimeout: 1000,
  _idlePrev:
   TimersList {
     _idleNext: [Circular],
     _idlePrev: [Circular],
     _unrefed: false,
     msecs: 1000,
     _timer: Timer { _list: [Circular] } },
  _idleNext:
   TimersList {
     _idleNext: [Circular],
     _idlePrev: [Circular],
     _unrefed: false,
     msecs: 1000,
     _timer: Timer { _list: [Circular] } },
  _idleStart: 648,
  _onTimeout: [Function],
  _timerArgs: undefined,
  _repeat: null,
  _destroyed: false,
  [Symbol(unrefed)]: false,
  [Symbol(asyncId)]: 7,
  [Symbol(triggerId)]: 5 }
typeof(mainWatchdog) :  object
mainWatchdog.constructor.name:  Timeout
main callback

无论有没有nodeIntegration，效果都是一样的。

这是测试存储库:https://gitlab.com/doom-fr/electron-timer-bug

正常吗？出了什么问题？

末日

Answer 1

在渲染器进程中，setTimeout()或window.setTimeout()是一个返回整数的 Web API 函数:

Return value

The returned timeoutID is a positive integer value which identifiesthe timer created by the call to setTimeout(); this value can bepassed to clearTimeout() to cancel the timeout.

而在主进程中，setTimeout()是一个 Node.js 全局对象 方法(在 Timers 中描述)，它返回 Timeout对象:

setTimeout(callback, delay[, ...args])

• callback The function to call when the timer elapses.
• delay The number of milliseconds to wait before calling the callback.
• ...args Optional arguments to pass when the callback is called.

Returns: <Timeout> for use with clearTimeout()

为了从渲染器进程调用 Node.js 方法，您必须使用 Electron 的远程 getGlobal方法;例如:

require('electron').remote.getGlobal('setTimeout')(() => { console.log('done'); }, 2000);