Help on every panel, task filter, unblock key, mouse zones, safe add-only rebuild

tui/frame.go

@@ -272,3 +272,20 @@ func wrap(s string, w int) []string {
 	}
 	return lines
 }
+
+// helpOverlay draws the keys for the panel that asked for it, centred over the
+// screen. It replaces the whole view rather than floating over it, so nothing
+// behind it can be misread as still active.
+func helpOverlay(title string, entries [][2]string, w, h int) string {
+	boxW := min(64, max(30, w-8))
+	boxH := min(len(entries)+4, max(8, h-4))
+	lines := []string{""}
+	for _, e := range entries {
+		key := lipgloss.NewStyle().Foreground(lipgloss.Color(active.Accent)).Bold(true).
+			Width(16).Render(e[0])
+		lines = append(lines, " "+key+lipgloss.NewStyle().Foreground(lipgloss.Color(active.Text)).Render(e[1]))
+	}
+	lines = append(lines, "", dimStyle().Render(" esc or ? closes this"))
+	p := panel{title: title, width: boxW, height: boxH, focused: true}
+	return lipgloss.Place(w, h, lipgloss.Center, lipgloss.Center, p.render(lines))
+}