How to dynamically add child TapPane into TabbedContent

[Ljzd-PRO]

How to add TapPane to a TabbedContent like OptionList.add_option
TabbedContent.compose_add_child is only support using in context manager

[Ljzd-PRO]

Add a append method and modify Tabs object and ContentSwitcher object to add TabPane and it works.

class DynamicTabbedContent(TabbedContent):
    def __init__(self, *titles: TextType):
        super().__init__(*titles)
        self.tabs: Optional[Tabs] = None
        self.content_switcher: Optional[ContentSwitcher] = None

    @classmethod
    def _set_id(cls, content: TabPane, new_id: str) -> TabPane:
        """Set an id on the content, if not already present.

        Args:
            content: a TabPane.
            new_id: New `is` attribute, if it is not already set.

        Returns:
            The same TabPane.
        """
        if content.id is None:
            content.id = new_id
        return content

    def append(self, content: TabPane):
        """Add TabPane"""
        self.titles.append(content._title)
        self._tab_content.append(content)
        tab_pane_with_id = self._set_id(content, f"tab-{len(self.content_switcher.children) + 1}")
        content_tab = ContentTab(tab_pane_with_id._title, tab_pane_with_id.id or "")
        await self.content_switcher.mount(tab_pane_with_id)
        self.content_switcher._initial = self.active
        self.content_switcher.on_mount()
        self.tabs.add_tab(content_tab)

    def compose(self) -> ComposeResult:
        """Compose the tabbed content."""

        # Wrap content in a `TabPane` if required.
        pane_content = [
            (
                self._set_id(content, f"tab-{index}")
                if isinstance(content, TabPane)
                else TabPane(
                    title or self.render_str(f"Tab {index}"), content, id=f"tab-{index}"
                )
            )
            for index, (title, content) in enumerate(
                zip_longest(self.titles, self._tab_content), 1
            )
        ]
        # Get a tab for each pane
        tabs = [
            ContentTab(content._title, content.id or "") for content in pane_content
        ]
        # Yield the tabs
        self.tabs = Tabs(*tabs, active=self._initial or None)
        yield self.tabs
        # Yield the content switcher and panes
        self.content_switcher = ContentSwitcher(initial=self._initial or None)
        with self.content_switcher:
            yield from pane_content