Create provider to the separate TabPanes

[devjcob]

Hello, I have a TabbedContent with three TabPanes. I want to use the set_interval method to create a separate data refresh for each managed by context manager. The problem is that when I run TabbedContent, all the intervals also run. Is there any way to control the interval refresh depending on which TabPane is now active? An example of one of the TabPane is below.

from textual.app import App, ComposeResult
from textual.widgets import TabbedContent, TabPane, Static
from textual.containers import Container
from textual.widget import Widget


class DataProvider(Widget):
    def __init__(self):
        super().__init__()
        self.set_interval(1.5, self.example_callback)

    def example_callback(self) -> None:
        print("!")


class Body(Container):
    DEFAULT_CSS = """
    Body {
        height: 1fr;
        width: 1fr;
    }
    """


class MyTabPane(TabPane):
    def compose(self) -> ComposeResult:
        with Body(), DataProvider():
            yield Static("!!")


class MyApp(App):
    def compose(self) -> ComposeResult:
        with TabbedContent():
            yield MyTabPane("first tab")


if __name__ == "__main__":
    app = MyApp()
    app.run()
    

[willmcgugan]

The set_interval method returns a timer. Which you can pause and resume (https://textual.textualize.io/api/timer/#textual.timer.Timer).

You could catch the TabActivate event to pause and resume timers https://textual.textualize.io/widgets/tabbed_content/#messages

[devjcob]

Thanks for the advice, I wanted to do this using the context manager, but that will probably be the way to go. But perhaps you have a better way of refreshing and reusing data in a few widgets in the background in textual ?

[devjcob]

I don't like the way these providers deliver data to the widgets, as I showed in the example, and I thought you might have a better way, but I didn't know about it.