# llimphi-workspace

Generic tmux-style chassis.

Step 2 of the "mount any tawasuyu component in an interchangeable layout with
resizable splits" vision. Where `llimphi_widget_panes` contributes the **tree**
(structure + render + drag), this crate contributes the **state machine** (which
panel is focused, how it splits and closes, the id counter) plus the **standard
chrome** (a split/close toolbar).

## How an app uses it

The app keeps a `Workspace` in its `Model` and a `HashMap<PaneId, …>` with each
panel's state. Its `Msg` wraps two things:

```ignore
enum Msg {
    Ws(WsMsg),                 // chassis messages (focus/split/…)
    Panel(PaneId, PanelMsg),   // messages of a concrete panel
}
```

In `update`, the `Ws` ones are applied with `Workspace::apply`, which returns a
`WsEffect` telling whether to **create** the state of a new panel or **delete**
that of a closed one. In `view`, `workspace_view` assembles the chrome plus the
tree; the app only provides each leaf's content (already lifted to its own `Msg`
— the chassis never touches the `PanelMsg`s).

The lift happens while building the view (like `shuma-module`), which sidesteps
the lack of `View::map` without `Box<dyn Any>`: the chassis is generic over the
host's `Msg` and never downcasts.

---

Part of **llimphi** — see [llimphi](../README.md).