[Nim] How can I listen for click on window's close button ?

[loloof64]

Hi !

First, I would like to say I'm so happy to start working on project with WebUi.

I'm creating an application in Nim-WebUi. But I'm still struggling to find how to listen to a click on the window's exit button, so that I can call exit() in order to terminate the application ?

This is my source file (light_them_all.nim)

import std/os

import webui

proc main = 
  let window = newWindow()

  window.bind("Close") do (_: Event):
    exit()

  window.rootFolder = currentSourcePath().parentDir() / "ui/dist"
  window.show("index.html")
  wait()

main()

From what I've understood, window.bind("Close") do (_: Event): is searching for an element with id "Close", but not for the overall window close event : is it right ?

Thank you in advance. 😃

[hassandraga]

Hey @loloof64, To listen to the close event of a window you can bind an empty "" to receive all events, including close event.

import std/os

import webui

proc main = 
  let window = newWindow()

  window.bind("") do (e: Event):
    case e.eventType:
      of EventsConnected:
        # ...
      of EventsDisconnected:
        exit()
      of EventsMouseClick:
        # ...
      of EventsNavigation:
        # ...
      else:
        discard

  window.rootFolder = currentSourcePath().parentDir() / "ui/dist"
  window.show("index.html")
  wait()
  # If we reach here, then all windows are closed
  # ...

main()

Documentation: https://webui.me/docs/2.4/#/?id=events
For more questions please open an issue here: https://github.com/webui-dev/nim-webui/issues
All events example: https://github.com/webui-dev/nim-webui/blob/main/examples/serve_folder/serve_folder.nim