feat: phase 12 — InputWidget, HistoryStore, readline-like input + ses…

PLAN.md

@@ -50,18 +50,18 @@
 
 ---
 
-### Phase 12 — Command input + history
+### Phase 12 — Command input + history ✅
 
 **Goal:** Full-featured input line with readline-like editing and session history.
 
 **Deliverables:**
-- `InputWidget` with cursor tracking, character insert/delete, Home/End.
-- Arrow-key history navigation (in-memory `VecDeque<String>`).
-- Ctrl-A (beginning of line), Ctrl-E (end), Ctrl-K (kill to end).
-- History persistence to `~/.local/share/logicshell/history` (one command per line, 1 000 entry cap).
-- `HistoryStore` abstraction (sync, pure) — testable without the TUI.
+- `InputWidget` with cursor tracking, character insert/delete, Home/End. ✅
+- Arrow-key history navigation (in-memory `VecDeque<String>`). ✅
+- Ctrl-A (beginning of line), Ctrl-E (end), Ctrl-K (kill to end). ✅
+- History persistence to `~/.local/share/logicshell/history` (one command per line, 1 000 entry cap). ✅
+- `HistoryStore` abstraction (sync, pure) — testable without the TUI. ✅
 
-**Tests:** InputWidget cursor math, history ring-buffer, persistence round-trip.
+**Tests:** InputWidget cursor math, history ring-buffer, persistence round-trip. ✅ (173 tests, 94.26% coverage)
 
 ---
 

logicshell-tui/examples/phase12.rs

@@ -0,0 +1,36 @@
+/// Phase 12 interactive demo — readline-like input + session history
+///
+/// Run with:  cargo run --example phase12 -p logicshell-tui
+///
+/// Key bindings:
+///   Left / Right    — move cursor
+///   Home / End      — beginning / end of line
+///   Ctrl-A / Ctrl-E — beginning / end of line (readline style)
+///   Ctrl-K          — kill from cursor to end of line
+///   Up / Down       — history navigation
+///   Backspace       — delete character before cursor
+///   Delete          — delete character at cursor
+///   Enter           — submit command
+///   Ctrl-C / q      — quit (q only when input is empty)
+use logicshell_tui::{terminal, App, Event, EventHandler};
+use ratatui::crossterm::event::KeyEventKind;
+use std::time::Duration;
+
+#[tokio::main]
+async fn main() -> logicshell_tui::Result<()> {
+    let mut term = terminal::init()?;
+    let mut app = App::default();
+    let mut events = EventHandler::new(Duration::from_millis(100));
+
+    while app.is_running() {
+        term.draw(|f| logicshell_tui::ui::draw(f, &app))?;
+        if let Some(Event::Key(key)) = events.next().await {
+            if key.kind == KeyEventKind::Press {
+                app.handle_key(key);
+            }
+        }
+    }
+
+    terminal::restore(&mut term)?;
+    Ok(())
+}