self_closing_popup.py

import PySimpleGUI as sg


class Popup:
    def __init__(self, window):
        """
        Create a new Popup instance
        :returns: None.
        """
        self.window = window
        self.info_popup = None

    def info(self, title: str, msg: str, auto_close_seconds: int):
        """
        Displays a popup window with the passed message string and auto-closes after the
        specified time.

        :param title: String to display as title.
        :param msg: String to display as message. Use '\n' for newlines.
        :param auto_close_seconds: Time in seconds after which the window will
            automatically close.
        :return: None
        """

        # Split the message string into lines
        msg_lines = msg.splitlines()

        # Create the layout for the window
        layout = [[sg.Text(line)] for line in msg_lines]

        # Create the window
        self.info_popup = sg.Window(
            title=title,
            layout=layout,
            keep_on_top=True,
            finalize=True,
            enable_close_attempted_event=True,
            location=(100, 100),
        )
        self.window.TKroot.after(auto_close_seconds * 1000, self._auto_close)

    def _auto_close(self):
        """
        Use in a tk.after to automatically close the popup_info.
        """
        self.info_popup.close()


layout = [
    [sg.Button("Test", key="test")],
    [sg.ProgressBar(100, orientation="h", expand_x=True, size=(20, 20), key="-PBAR-")],
]

window = sg.Window(
    "Non Blocking Info Popup",
    layout,
    finalize=True,
    grab_anywhere=True,
    element_justification="center",
)
popup = Popup(window)
pb_value = 0

while True:
    event, values = window.read(timeout=100)
    if event == sg.WINDOW_CLOSED:
        break
    if event == "test":
        popup.info(
            title="Self-closing custom popup",
            msg="I'll close in 5 seconds\nAnd I'm non-blocking",
            auto_close_seconds=5,
        )
    if event == "__TIMEOUT__":
        if pb_value < 100:
            pb_value += 10
        else:
            pb_value = 0
        window["-PBAR-"].update(current_count=pb_value)
window.close()