Can't scroll vertically programmatically within a DataTable

[rodrigogiraoserrao]

Run the app below and press E. It should scroll to the end.

Run the app below and press J and then S. It should scroll to the row with the number 100.

Looking at Widget.scroll_to_region, the method concludes that the cell in question is already visible (delta_x and delta_y from Region.get_scroll_to_visible are both 0).

from textual.app import App, ComposeResult
from textual.coordinate import Coordinate
from textual.widgets import DataTable


class TableApp(App):
    def compose(self) -> ComposeResult:
        yield DataTable()

    def on_mount(self) -> None:
        table = self.query_one(DataTable)
        table.cursor_type = "cell"
        table.zebra_stripes = True
        table.add_column("n")
        table.add_rows([(n,) for n in range(300)])

    def key_c(self):
        table = self.query_one(DataTable)
        table.cursor_type = next(cursors)

    def key_j(self):
        table = self.query_one(DataTable)
        table.cursor_coordinate = Coordinate(100, 0)

    def key_s(self):
        self.query_one(DataTable)._scroll_cursor_into_view()

    def key_e(self):
        self.query_one(DataTable).action_scroll_end()


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

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