CODEWITHSUNDEEP
node.jselectron
pushkin
pushkin

Reputation: 10209

How to tell if a window failed to close in Electron?

Is there a way in Electron to tell if a window was not successfully closed?

win.once("closed", () => {
    // send message to the page running in the renderer process that the window was closed
});

win.close();

Assuming that I'm not cancelling the close in the close or beforeunload handler, can the window still fail to close, or can I be sure that a message will always be sent to the guest page?

Upvotes: 1

Views: 1282

Answers (2)

Wenfang Du
Wenfang Du

Reputation: 11337

I just came to this issue as well, what I did is simply wait for a few hundred milliseconds, if the callback is called, then most likely, this window has failed to close:

win.on('close', () => setTimeout(() => console.log('failed to close'), 300))

Upvotes: 1

kuzyn
kuzyn

Reputation: 1995

Have a look at this property in the doc:

win.closed

A Boolean that is set to true after the child window gets closed.

And this other bit too:

win.destroy()

Force closing the window, the unload and beforeunload event won’t be emitted for the web page, and close event will also not be emitted for this window, but it guarantees the closed event will be emitted.

With that, you should have all the info you need to create a function that insure you that the window closes:

function forceClose(window) {
  
  // try close first
  window.close()
  
  // force with destroy
  if(!window.closed) {
    window.destroy()
  }
  
  //just logging out the event
  window.on('closed', (e) => {
    console.log(e)
  })
  
}


// in your code, instead of calling win.close()
forceClose(win)

Upvotes: 0

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