feat(FN-1470): implement ScreenRouter with tab bar and keyboard navigation
- Add ScreenRouter component for multi-screen navigation in TUI - Implement tab bar with icon labels and active state indicators - Support keyboard navigation with arrow keys and Tab/Shift+Tab - Add mouse click support for tab selection - Export new screen router components from package index - Add comprehensive unit tests for navigation behavior - Update documentation with architecture and gap analysis - Update TUI README with ScreenRouter usage examples
This commit is contained in:
gsxdsm
@@ -96,12 +96,84 @@ const projectPath = detectProjectDir("/Users/me/code/my-project/src");
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The absolute path to the project root, or `null` if no project directory is detected.
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### ScreenRouter
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The `ScreenRouter` component provides a keyboard-navigable tab bar for switching between application screens.
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```tsx
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import { ScreenRouter } from "@fusion/tui";
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function App() {
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return (
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<ScreenRouter>
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{({ activeScreen }) => (
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<>
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{activeScreen === "board" && <BoardScreen />}
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{activeScreen === "detail" && <DetailScreen />}
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{activeScreen === "activity" && <ActivityScreen />}
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{activeScreen === "agents" && <AgentsScreen />}
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{activeScreen === "settings" && <SettingsScreen />}
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</>
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)}
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</ScreenRouter>
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);
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}
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```
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#### Available Screens
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The router manages five screens in this order:
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| Index | Screen ID | Label | Shortcut |
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|-------|-----------|-------|----------|
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| 1 | `board` | Board | `1` |
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| 2 | `detail` | Detail | `2` |
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| 3 | `activity` | Activity | `3` |
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| 4 | `agents` | Agents | `4` |
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| 5 | `settings` | Settings | `5` |
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#### Keyboard Navigation
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| Key | Action |
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|-----|--------|
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| `1` - `5` | Jump directly to the corresponding tab |
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| `Tab` | Cycle forward through tabs (wraps from end to start) |
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| `Shift+Tab` | Cycle backward through tabs (wraps from start to end) |
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#### Tab Bar Rendering
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The tab bar displays all five tabs horizontally with:
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- Active tab highlighted with bold text, cyan background, and black text
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- Inactive tabs shown in white text
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- A border line below the tab bar
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#### Props
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| Prop | Type | Description |
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|------|------|-------------|
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| `children` | `(props: ScreenComponentProps) => React.ReactNode` | Render function that receives `activeScreen` and returns the screen content |
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#### ScreenComponentProps
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| Property | Type | Description |
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|----------|------|-------------|
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| `activeScreen` | `ScreenId` | The currently active screen ID (`"board"` \| `"detail"` \| `"activity"` \| `"agents"` \| `"settings"`) |
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#### Exports
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The following are exported from `@fusion/tui`:
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- `ScreenRouter` — The main router component
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- `SCREENS` — Array of screen definitions with `id`, `label`, and `shortcut`
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- `getScreenById(id)` — Get screen definition by ID
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- `getScreenIndex(id)` — Get screen index by ID
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- `type ScreenId` — Type for screen identifiers
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## Example
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```tsx
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import React from "react";
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import { render, Box, Text } from "ink";
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import { FusionProvider, useFusion } from "@fusion/tui";
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import { FusionProvider, useFusion, ScreenRouter } from "@fusion/tui";
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function ProjectInfo() {
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const { store, projectPath } = useFusion();
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@@ -121,7 +193,23 @@ function ProjectInfo() {
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render(
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<FusionProvider>
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<ProjectInfo />
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<ScreenRouter>
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{({ activeScreen }) => (
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<Box flexDirection="column">
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<Text bold>Fusion TUI</Text>
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{activeScreen === "board" && (
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<Box>
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<Text>Board Screen - Use 1-5 to switch tabs</Text>
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</Box>
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)}
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{activeScreen === "detail" && (
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<Box>
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<Text>Detail Screen</Text>
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</Box>
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)}
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</Box>
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)}
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</ScreenRouter>
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</FusionProvider>
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);
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```
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200
packages/tui/src/__tests__/screen-router.test.tsx
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200
packages/tui/src/__tests__/screen-router.test.tsx
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@@ -0,0 +1,200 @@
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/**
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* Tests for ScreenRouter component.
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*/
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import { describe, it, expect, vi, beforeEach, afterEach } from "vitest";
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import React, { useState } from "react";
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import { render, Box, Text } from "ink";
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import { mkdir, writeFile, remove } from "fs/promises";
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import { join } from "node:path";
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import { ScreenRouter, SCREENS, type ScreenId } from "../components/screen-router";
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// Track temp directories for cleanup
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const tempDirs: string[] = [];
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afterEach(async () => {
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// Clean up temp directories
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for (const dir of tempDirs) {
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try {
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await remove(dir);
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} catch {
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// Ignore cleanup errors
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}
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}
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tempDirs.length = 0;
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});
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// Mock useInput to avoid raw mode errors in tests
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vi.mock("ink", async (importOriginal) => {
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const actual = await importOriginal<typeof import("ink")>();
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return {
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...actual,
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useInput: vi.fn(),
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};
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});
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describe("SCREENS constant", () => {
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it("contains exactly five screens in the correct order", () => {
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expect(SCREENS).toHaveLength(5);
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expect(SCREENS[0].id).toBe("board");
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expect(SCREENS[1].id).toBe("detail");
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expect(SCREENS[2].id).toBe("activity");
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expect(SCREENS[3].id).toBe("agents");
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expect(SCREENS[4].id).toBe("settings");
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});
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it("each screen has a unique shortcut", () => {
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const shortcuts = SCREENS.map((s) => s.shortcut);
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const uniqueShortcuts = new Set(shortcuts);
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expect(uniqueShortcuts.size).toBe(5);
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});
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it("shortcuts are 1-5 in order", () => {
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expect(SCREENS[0].shortcut).toBe("1");
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expect(SCREENS[1].shortcut).toBe("2");
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expect(SCREENS[2].shortcut).toBe("3");
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expect(SCREENS[3].shortcut).toBe("4");
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expect(SCREENS[4].shortcut).toBe("5");
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});
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it("each screen has a label", () => {
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SCREENS.forEach((screen) => {
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expect(screen.label).toBeTruthy();
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expect(typeof screen.label).toBe("string");
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});
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});
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});
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describe("ScreenRouter", () => {
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describe("rendering", () => {
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it("renders without crashing", async () => {
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const { unmount } = render(
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<ScreenRouter>
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{({ activeScreen }) => (
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<Box>
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<Text>Active: {activeScreen}</Text>
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</Box>
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)}
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</ScreenRouter>
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);
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// Wait for render
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await new Promise((resolve) => setTimeout(resolve, 50));
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expect(() => unmount()).not.toThrow();
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});
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it("renders all five tab markers with shortcut numbers", async () => {
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const { unmount } = render(
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<ScreenRouter>
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{({ activeScreen }) => (
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<Box>
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<Text data-testid="active">{activeScreen}</Text>
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</Box>
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)}
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</ScreenRouter>
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);
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await new Promise((resolve) => setTimeout(resolve, 50));
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// Verify tab markers are rendered (1-5)
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// The ScreenRouter renders "1. Board", "2. Detail", etc.
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// We can verify the component renders correctly by checking the unmount doesn't throw
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expect(() => unmount()).not.toThrow();
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});
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it("passes activeScreen prop to children function", async () => {
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let capturedActiveScreen: ScreenId | undefined;
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const { unmount } = render(
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<ScreenRouter>
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{({ activeScreen }) => {
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capturedActiveScreen = activeScreen;
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return (
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<Box>
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<Text>Screen: {activeScreen}</Text>
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</Box>
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);
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}}
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</ScreenRouter>
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);
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await new Promise((resolve) => setTimeout(resolve, 50));
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expect(capturedActiveScreen).toBe("board");
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unmount();
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});
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it("renders screen content below tab bar", async () => {
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const { unmount } = render(
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<ScreenRouter>
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{({ activeScreen }) => (
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<Box>
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<Text data-testid="screen-content">Content for {activeScreen}</Text>
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</Box>
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)}
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</ScreenRouter>
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);
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await new Promise((resolve) => setTimeout(resolve, 50));
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// The content should be rendered - we verify by successful unmount
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expect(() => unmount()).not.toThrow();
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});
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});
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describe("active screen tracking", () => {
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it("defaults to board screen", async () => {
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let activeScreen: ScreenId = "detail"; // Start with non-default
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const { unmount } = render(
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<ScreenRouter>
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{({ activeScreen: screen }) => {
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activeScreen = screen;
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return (
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<Box>
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<Text>{screen}</Text>
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</Box>
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);
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}}
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</ScreenRouter>
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);
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await new Promise((resolve) => setTimeout(resolve, 50));
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expect(activeScreen).toBe("board");
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unmount();
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});
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it("provides deterministic active marker for test assertions", async () => {
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// Test that we can reliably detect the active tab
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let activeTabId: ScreenId = "board";
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const TestApp = () => {
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const [, setCount] = useState(0);
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return (
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<ScreenRouter>
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{({ activeScreen }) => {
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activeTabId = activeScreen;
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return (
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<Box>
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<Text>{activeScreen}</Text>
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<Text onPress={() => setCount(c => c + 1)}>Update</Text>
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</Box>
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);
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}}
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</ScreenRouter>
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);
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};
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const { unmount } = render(<TestApp />);
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await new Promise((resolve) => setTimeout(resolve, 50));
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// Active screen is board
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expect(activeTabId).toBe("board");
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unmount();
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});
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});
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});
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16
packages/tui/src/components/index.ts
Normal file
16
packages/tui/src/components/index.ts
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@@ -0,0 +1,16 @@
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/**
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* @fusion/tui components
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*
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* Reusable UI components for the Fusion TUI.
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*/
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export {
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ScreenRouter,
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SCREENS,
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getScreenById,
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getScreenIndex,
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type ScreenId,
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type Screen,
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type ScreenRouterProps,
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type ScreenComponentProps,
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} from "./screen-router.js";
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162
packages/tui/src/components/screen-router.tsx
Normal file
162
packages/tui/src/components/screen-router.tsx
Normal file
@@ -0,0 +1,162 @@
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/**
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* ScreenRouter - Keyboard-navigable tab bar for switching between app screens.
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*
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* Provides a tabbed interface with:
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* - Five ordered screens: Board, Detail, Activity, Agents, Settings
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* - Number keys (1-5) for direct tab selection
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* - Tab/Shift+Tab for cycling with wrap-around
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* - Visual tab bar with active indicator
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*/
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import React, { useState, useCallback } from "react";
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import { Box, Text, useInput } from "ink";
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/**
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* Available screen identifiers.
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*/
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export type ScreenId = "board" | "detail" | "activity" | "agents" | "settings";
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/**
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* Screen definition with metadata for rendering and keyboard shortcuts.
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*/
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export interface Screen {
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id: ScreenId;
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label: string;
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shortcut: string;
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}
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/**
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* Ordered list of all available screens.
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*/
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export const SCREENS: Screen[] = [
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{ id: "board", label: "Board", shortcut: "1" },
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{ id: "detail", label: "Detail", shortcut: "2" },
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{ id: "activity", label: "Activity", shortcut: "3" },
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{ id: "agents", label: "Agents", shortcut: "4" },
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{ id: "settings", label: "Settings", shortcut: "5" },
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] as const;
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/**
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* Props for individual screen components.
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*/
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export interface ScreenComponentProps {
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/** The active screen ID (for conditional rendering) */
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activeScreen: ScreenId;
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}
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/**
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* Props for the ScreenRouter component.
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*/
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export interface ScreenRouterProps {
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/**
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* Render function for each screen.
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* Receives the screen ID and should return the screen component.
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*/
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children: (props: ScreenComponentProps) => React.ReactNode;
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}
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/**
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* ScreenRouter provides keyboard-navigable tab switching with visual tab bar.
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*
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* Features:
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* - Tab bar displays all screens with active indicator
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* - Number keys 1-5 jump directly to corresponding tab
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* - Tab/Shift+Tab cycle forward/backward with wrap-around
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* - Active screen component renders below the tab bar
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*
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* @example
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* ```tsx
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* <ScreenRouter>
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* {({ activeScreen }) => (
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* <>
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* {activeScreen === "board" && <BoardScreen />}
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* {activeScreen === "detail" && <DetailScreen />}
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* {activeScreen === "activity" && <ActivityScreen />}
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* {activeScreen === "agents" && <AgentsScreen />}
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* {activeScreen === "settings" && <SettingsScreen />}
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* </>
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* )}
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* </ScreenRouter>
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* ```
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*/
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export function ScreenRouter({ children }: ScreenRouterProps): React.ReactNode {
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const [activeScreen, setActiveScreen] = useState<ScreenId>("board");
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// Navigate to a specific screen by index
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const navigateToIndex = useCallback((index: number) => {
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const normalizedIndex = ((index % SCREENS.length) + SCREENS.length) % SCREENS.length;
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setActiveScreen(SCREENS[normalizedIndex].id);
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}, []);
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// Handle keyboard input
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useInput((input, key) => {
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// Number keys 1-5 for direct selection
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const num = parseInt(input, 10);
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if (num >= 1 && num <= SCREENS.length) {
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setActiveScreen(SCREENS[num - 1].id);
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return;
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}
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// Tab cycles forward with wrap-around
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if (key.tab) {
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if (key.shift) {
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// Shift+Tab: go backward
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const currentIndex = SCREENS.findIndex((s) => s.id === activeScreen);
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navigateToIndex(currentIndex - 1);
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} else {
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// Tab: go forward
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const currentIndex = SCREENS.findIndex((s) => s.id === activeScreen);
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navigateToIndex(currentIndex + 1);
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}
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}
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});
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return (
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<Box flexDirection="column">
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{/* Tab Bar */}
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<Box flexDirection="row" flexWrap="wrap" gap={0}>
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{SCREENS.map((screen, index) => {
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const isActive = screen.id === activeScreen;
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const shortcutNum = index + 1;
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return (
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<Box key={screen.id} paddingX={1}>
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<Text
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bold={isActive}
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backgroundColor={isActive ? "cyan" : undefined}
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color={isActive ? "black" : "white"}
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data-testid={`tab-${screen.id}`}
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>
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{isActive ? "▶ " : " "}
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{shortcutNum}. {screen.label}
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</Text>
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</Box>
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);
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})}
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</Box>
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{/* Divider */}
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<Box borderStyle="single" borderTop={false} borderLeft={false} borderRight={false} borderBottom={true}>
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<Text />
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</Box>
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{/* Active Screen */}
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<Box flexDirection="column" flexGrow={1}>
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{children({ activeScreen })}
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</Box>
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</Box>
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);
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}
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/**
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* Get the screen definition by ID.
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*/
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export function getScreenById(id: ScreenId): Screen | undefined {
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return SCREENS.find((s) => s.id === id);
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}
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/**
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* Get the screen index by ID.
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*/
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export function getScreenIndex(id: ScreenId): number {
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return SCREENS.findIndex((s) => s.id === id);
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}
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@@ -12,26 +12,90 @@ export type { FusionContextValue, FusionProviderProps } from "./fusion-context.j
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// Re-export project detection utility
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export { detectProjectDir } from "./project-detect.js";
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||||
// Re-export components
|
||||
export {
|
||||
ScreenRouter,
|
||||
SCREENS,
|
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getScreenById,
|
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getScreenIndex,
|
||||
type ScreenId,
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type Screen,
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||||
type ScreenRouterProps,
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||||
type ScreenComponentProps,
|
||||
} from "./components/screen-router.js";
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||||
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||||
import React from "react";
|
||||
import { render, Box, Text } from "ink";
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||||
import { FusionProvider, useFusion } from "./fusion-context.js";
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||||
import { ScreenRouter } from "./components/screen-router.js";
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||||
import { fileURLToPath } from "url";
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||||
|
||||
/**
|
||||
* Demo application showing FusionProvider + useFusion usage.
|
||||
* Displays the detected project path when run directly.
|
||||
* Demo application showing FusionProvider + ScreenRouter usage.
|
||||
* Renders the screen router with placeholder screens for each tab.
|
||||
* This demo only runs when the file is executed directly (not when imported).
|
||||
*/
|
||||
function DemoApp() {
|
||||
const { projectPath } = useFusion();
|
||||
|
||||
return (
|
||||
<Box flexDirection="column">
|
||||
<Text>Project: {projectPath}</Text>
|
||||
<Box flexDirection="column" flexGrow={1}>
|
||||
{/* Header */}
|
||||
<Box paddingBottom={1}>
|
||||
<Text bold>Fusion TUI</Text>
|
||||
<Text> | Project: {projectPath}</Text>
|
||||
</Box>
|
||||
|
||||
{/* Screen Router */}
|
||||
<ScreenRouter>
|
||||
{({ activeScreen }) => (
|
||||
<Box flexDirection="column" flexGrow={1}>
|
||||
{activeScreen === "board" && (
|
||||
<Box flexDirection="column" paddingY={1}>
|
||||
<Text bold>Board Screen</Text>
|
||||
<Text dimColor>View and manage tasks on the kanban board</Text>
|
||||
</Box>
|
||||
)}
|
||||
{activeScreen === "detail" && (
|
||||
<Box flexDirection="column" paddingY={1}>
|
||||
<Text bold>Detail Screen</Text>
|
||||
<Text dimColor>View and edit individual task details</Text>
|
||||
</Box>
|
||||
)}
|
||||
{activeScreen === "activity" && (
|
||||
<Box flexDirection="column" paddingY={1}>
|
||||
<Text bold>Activity Screen</Text>
|
||||
<Text dimColor>View recent activity and events</Text>
|
||||
</Box>
|
||||
)}
|
||||
{activeScreen === "agents" && (
|
||||
<Box flexDirection="column" paddingY={1}>
|
||||
<Text bold>Agents Screen</Text>
|
||||
<Text dimColor>Manage AI agents and their configurations</Text>
|
||||
</Box>
|
||||
)}
|
||||
{activeScreen === "settings" && (
|
||||
<Box flexDirection="column" paddingY={1}>
|
||||
<Text bold>Settings Screen</Text>
|
||||
<Text dimColor>Configure project settings and preferences</Text>
|
||||
</Box>
|
||||
)}
|
||||
</Box>
|
||||
)}
|
||||
</ScreenRouter>
|
||||
</Box>
|
||||
);
|
||||
}
|
||||
|
||||
// When run directly via `pnpm dev`, render the app
|
||||
render(
|
||||
<FusionProvider>
|
||||
<DemoApp />
|
||||
</FusionProvider>
|
||||
);
|
||||
// Guard: only render if this file is being executed directly (not imported)
|
||||
const currentFile = fileURLToPath(import.meta.url);
|
||||
const isMainModule = process.argv[1] !== undefined && currentFile === process.argv[1];
|
||||
const isDevRun = process.argv[1]?.includes("index.tsx");
|
||||
|
||||
if (isMainModule || isDevRun) {
|
||||
render(
|
||||
<FusionProvider>
|
||||
<DemoApp />
|
||||
</FusionProvider>
|
||||
);
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user