[Feature] Message Box function

[divadsn]

Specification

• pywebview version: 5.1
• operating system: Windows 10
• web renderer: edgechromium

Description

I have not seen any method to create a message box in pywebview, only some half-baked solutions using Tk, but they don't integrate very well with the window GUI. There was a method in the PR for #949 but it doesn't seem to be in 5.1 anymore 🤔

JS alert() don't look good on Windows with edgechromium

[r0x0r]

it is create_confirmation_dialog

[divadsn]

Yes but that one creates as the name already tells an Yes/No dialog, I am searching for a method to have an alert/message box with an icon (warning/info/error) and an OK button. alert() in JS shows the built-in error which doesn't look good:

[r0x0r]

There is a custom message box implementation that overwrites window.alert, but it is not enabled for EdgeChromium. I will look into this.

[yllhwa]

If you only plan to run on Windows, simply use win32 api like this.

import webview
import ctypes


def my_alert(title, text, flags=0x00001030):
    ctypes.windll.user32.MessageBoxW(None, text, title, flags)


window = webview.create_window("Hello world", "https://pywebview.flowrl.com/hello")
window.expose(my_alert)
webview.start(debug=True)

# js: pywebview.api.my_alert("Error", "error while loading")

[r0x0r]

I pushed a fix to master